WO2014125773A1 - Slope protecting structure and protecting method - Google Patents

Slope protecting structure and protecting method Download PDF

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Publication number
WO2014125773A1
WO2014125773A1 PCT/JP2014/000363 JP2014000363W WO2014125773A1 WO 2014125773 A1 WO2014125773 A1 WO 2014125773A1 JP 2014000363 W JP2014000363 W JP 2014000363W WO 2014125773 A1 WO2014125773 A1 WO 2014125773A1
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Prior art keywords
rope
slope
net
ropes
vertical
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PCT/JP2014/000363
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French (fr)
Japanese (ja)
Inventor
利充 野村
昭一 井上
陽一 西田
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株式会社プロテックエンジニアリング
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Priority to KR1020157019737A priority Critical patent/KR102243531B1/en
Publication of WO2014125773A1 publication Critical patent/WO2014125773A1/en

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
    • E01F7/04—Devices affording protection against snowslides, avalanches or falling rocks, e.g. avalanche preventing structures, galleries
    • E01F7/045—Devices specially adapted for protecting against falling rocks, e.g. galleries, nets, rock traps

Definitions

  • the present invention relates to a slope protection structure and a protection method for preventing falling rocks and landslides.
  • Patent Document 1 as a means of protecting slopes where there is a risk of falling rocks or landslides, covering the slope with a wire mesh or wire rope net and fixing the intersections of the wire mesh or the rope net with special anchors 2 is disclosed.
  • Patent Document 3 discloses that the slope is covered with a wire mesh and vertical and horizontal ropes, and the intersection of the vertical and horizontal ropes and the wire mesh are fixed to the anchor together.
  • Patent Document 3 a reinforcing range is covered with an auxiliary net and the periphery of the auxiliary net is fixed with a dedicated anchor, and a reinforcing rope is attached to the reinforcing range.
  • Patent Document 4 discloses that both ends of the reinforcing rope are fixed with dedicated anchors.
  • JP 2009-249823 A (FIG. 6) JP-A-8-260423 (FIGS. 1 and 2) JP 2009-203681 A (FIGS. 6 and 11) JP 2000-27123 A (FIG. 1)
  • the present invention has been made in view of the above points, and an object of the present invention is to provide at least one slope protection technique.
  • ⁇ 1> Capability to improve work safety while improving work efficiency on slopes.
  • ⁇ 2> To reduce the load on the rope and anchor.
  • ⁇ 3> Capable of quickly and economically reinforcing the entire slope or partially reinforcing the slope.
  • 1st invention of this application attaches the net covered over the protection range of the slope, and a plurality of ropes attached to the net in a crossing direction to an anchor provided on the slope to restrain the surface of the slope.
  • a mooring roller that is rotatably installed between the center portions of the restraint plates and has an insertion hole through which the anchor head can be inserted, and the peripheral portion of the restraint plate A net having an insertion space into which a rope can be inserted between the mooring roller and the regulation pin, and whose slope is covered with a support mooring device installed on the head of the anchor.
  • a second invention of the present application is characterized in that, in the first invention, the rope combined in the intersecting direction is any one of a combination of a single rope, a combination of a plurality of ropes, or a combination of a single rope and a plurality of ropes.
  • a third invention of the present application is characterized in that, in the second invention, the rope combined in the intersecting direction is a combination of a vertical rope arranged in the vertical direction of the slope and a horizontal rope arranged in the horizontal direction of the slope. To do.
  • the rope combined in the intersecting direction is arranged in a vertical rope arranged in the vertical direction of the slope, a horizontal rope arranged in the horizontal direction of the slope, and an oblique direction of the slope. It is characterized by the combination with the slanted rope.
  • a fifth invention of the present application is the rope according to the second invention, wherein the ropes combined in the intersecting direction are arranged in the vertical and horizontal directions of the slope, and the vertical ropes are attached in advance to the left and right side edges of the net. It is characterized by that.
  • the slope is covered with a net, a net obtained by obtaining a reaction force on the anchor and fixing the net on the slope is fixed to the slope, and combined with the net in the crossing direction.
  • a method of attaching a plurality of ropes to protect a slope wherein a support mooring tool having both a support pressure fixing function of the net and a mooring function of the plurality of ropes is used, and the support mooring tool is in the center
  • a pair of constraining plates having an insertion hole through which the anchor head can be inserted, a mooring roller which is rotatably installed between the central portions of the constraining plate and has an insertion hole through which the anchor head can be inserted;
  • a restraining pin installed between the peripheral edges of the restraint plate, forming an insertion space into which a rope can be inserted between the anchoring roller and the restraining pin, and the supporting pressure mooring attached to the head of the anchor Net covered on slope with tools
  • the both ends of the rope are moored and wired, and the both ends of the rope are inclined.
  • the both ends of the additional rope are moored and arranged between the plurality of supporting moorings, and both ends of the additional rope are inclined. It further includes an additional retrofitting work of a rope to be fixed to the cable.
  • the eighth invention of the present application is the sixth or seventh invention, wherein the rope combined in the intersecting direction is any one of a combination of single ropes, a combination of multiple ropes, or a combination of a single rope and multiple ropes. It is characterized by that.
  • a ninth invention of the present application is characterized in that, in the eighth invention, the rope combined in the intersecting direction is a combination of a vertical rope arranged in the vertical direction of the slope and a horizontal rope arranged in the horizontal direction of the slope. To do.
  • the rope combined in the intersecting direction is arranged in a vertical rope arranged in the vertical direction of the slope, a horizontal rope arranged in the horizontal direction of the slope, and an oblique direction of the slope. It is characterized by the combination with the slanted rope.
  • An eleventh invention of the present application is the rope according to the eighth invention, wherein the ropes combined in the intersecting direction are arranged in the vertical and horizontal directions of the slope, and the vertical ropes are attached in advance to the left and right side edges of the net. After fixing the net with the rope in the vertical direction to the slope, the rope in the horizontal direction is retrofitted to the net.
  • the present invention has at least one of the following effects.
  • a rope is routed between a plurality of support moorings after promptly fixing the slope by using a support mooring tool to quickly fix the net covering the slope. Therefore, the retrofitting work of the rope can be efficiently performed in a short time in a safe environment.
  • a support mooring tool By using a support mooring tool, it is possible to transmit the load acting on a part of the rope over the entire length of the rope, and further distributing the load acting on a part of the rope to a plurality of anchors. Can be supported. Therefore, the load burden of the rope and anchor can be reduced, and not only an ideal load burden is possible, but also the effect of restraining the slope is improved as compared with the conventional netting method.
  • Plane model diagram of the slope protection structure according to the present invention Enlarged perspective view of the fixed part of the net with part of the support mooring device broken Longitudinal sectional view of the fixed part of the net using the support mooring tool It is explanatory drawing of the construction method of a covering net, (A) is a model figure of an anchor work, (B) is a model figure of a net covering work and a fixing work Horizontal sectional view of the mooring section between the support mooring tool and the vertical and horizontal ropes Horizontal sectional view of the anchor at the outermost end and the fixed part at the end of the vertical and horizontal ropes Plan model diagram of the protection structure of the slope that adjusts the collapse prevention force by selecting the number and installation direction of the vertical and horizontal ropes Plane model diagram of the slope protection structure according to Modification 2 using a net with a vertical rope The top view of the butted part of the net with a vertical rope in modification 2
  • the slope protection structure includes a net 20 covering a slope 10 to be protected on which a float stone 11 and the like exist, and a surface of the net 20.
  • the vertical and horizontal ropes 30 and 31 and the net 20 are connected by a connection tool 32 such as a connection coil.
  • the anchor 20 and the supporting mooring tool 50 are used together to fix the net 20 covered with the slope 10 in advance, and the supporting mooring tool 50 used for fixing the net 20 is also used as the surface of the net 20.
  • the vertical and horizontal ropes 30 and 31 are retrofitted in a safe environment.
  • the net 20 that is stretched on the slope 10 to be protected is a net-like material that is excellent in flexibility, high strength, and weather resistance. Includes metal nets, resin nets, non-metal nets such as resin nets made of high-strength fibers and fiber nets.
  • the vertical rope 30 and the horizontal rope 31 are continuous metal or non-metal ropes having a length equal to or longer than the distance between the pair of anchors 40 and 40, and are stretched on the surface of the net 20. . Between both end portions (intermediate portions) of the vertical and horizontal ropes 30 and 31 are moored to a plurality of support pressure moorings 50, and the ends of the vertical and horizontal ropes 30 and 31 are connected to the outermost ends via the support pressure moorings 50. Fix directly to the anchor 40 or directly to the outermost anchor 40. The ends of the vertical and horizontal ropes 30 and 31 may be fixed to the slope 10.
  • the reason that the support mooring device 50 is moored between the both ends of each of the vertical and horizontal ropes 30 and 31 is that the load acting on a part of the vertical and horizontal ropes 30 and 31 can be transmitted over the entire length of the rope. It is to do.
  • the supporting pressure mooring tool 50 is a dual-purpose jig for mooring a plurality of vertical and horizontal ropes 30 and 31 while pressing and fixing a plurality of portions of the net 20 against the slope 10. Install in place and fix.
  • the support mooring tool 50 is not limited in the direction of the vertical and horizontal ropes 30 and 31 and the number of moorings, and can be wired in any direction across the heads of the plurality of anchors 40 in any direction. It is.
  • the reason why the routing direction and the number of moorings of the vertical and horizontal ropes 30 and 31 can be arbitrarily set is to partially adjust the collapse prevention force according to the situation of the slope 10.
  • the support mooring tool 50 illustrated in FIGS. 2 and 3 will be described.
  • the support mooring tools 50 are arranged to face each other and have a pair of restraining plates 51, 52 having insertion holes 51a, 52a in the center, and the restraining plate 51.
  • , 52 is rotatably installed between the central portions of the two and the anchoring rollers 53 having an insertion hole 53a formed at the center thereof, and a restriction pin 54 provided between the peripheral portions of the restraining plates 51 and 52.
  • An insertion space 55 into which a rope can be inserted is formed between the mooring roller 53 and the regulation pin 54.
  • the size of the insertion space 55 is appropriately selected in consideration of the number of ropes inserted.
  • the support mooring tool 50 can be inserted into the head of the anchor 40 through the plurality of insertion holes 51a, 52a, 53a.
  • the restraint plates 51 and 52 have both a function of supporting the surface of the net 20 and a function of preventing the vertical and horizontal ropes 30 and 31 from coming off in cooperation with the regulation pin 54.
  • the lower restraint plate 51 may be in a form capable of bearing against the net 20, and the upper restraint plate 52 may have a structure that can prevent the ropes 30 and 31 from coming off in cooperation with the restriction pin 54.
  • the constraining plates 51 and 52 have the same annular shape. However, the planar shape of the constraining plates 51 and 52 is not limited, and may be rectangular.
  • the mooring roller 53 is a roller that is pivotally supported by the anchor 40 and has a mooring function for the vertical and horizontal ropes 30 and 31.
  • the mooring roller 53 has a sheave shape having an annular groove, but may have a uniform diameter without a groove.
  • the mooring roller 53 is provided so as to be rotatable in order to improve load transferability over the entire length of the vertical and horizontal ropes 30 and 31 and to reduce the frictional resistance between the mooring roller 53 and the vertical and horizontal ropes 30 and 31. is there.
  • restriction pin 54 has a function of preventing the vertical and horizontal ropes 30 and 31 from coming off in cooperation with the restriction plates 51 and 52.
  • the number of restriction pins 54 to be installed is appropriately selected according to the number of ropes moored, and it is sufficient that at least one restriction pin 54 is provided.
  • Anchor 40 is used for tensioning and fixing the support mooring device 50, and various known anchors such as a lock bolt, a ground anchor, and a rope anchor can be used.
  • various known anchors such as a lock bolt, a ground anchor, and a rope anchor can be used.
  • a configuration in which a lock bolt that is tightened with a nut 41 is applied as the anchor 40 will be described.
  • Anchor Work As shown in FIG. 4 (A), a plurality of anchors 40 are provided on the slope 10 where the float stones 11 and the like are scattered.
  • the number and length of the vertical and horizontal ropes 30 and 31 can be arbitrarily selected and the collapse prevention force can be partially adjusted according to the situation of the slope 10, so that the installation intervals of the anchors 40 are equalized. There is no need, and an appropriate interval according to the situation at the site may be used.
  • FIG. 5 shows the mooring portions of the vertical and horizontal ropes 30 and 31 and the supporting pressure mooring tool 50.
  • the vertical and horizontal ropes 30, 31 that are sequentially inserted and anchored in the insertion space 55 of the adjacent support mooring tool 50 are prevented from being detached by the anchoring roller 53, the restriction pin 54, and the upper restraint plate 52 that define the insertion space 55. Is done.
  • FIG. 6 shows a form in which both end portions of the vertical and horizontal ropes 30 and 31 are wound around the anchoring roller 53 of the bearing support anchor 50 attached to the anchor 40 at the outermost end and fixed by the clip 33.
  • the anchor 40 may be fixed directly.
  • the horizontal rope 31 when the horizontal rope 31 is moored to the bearing mooring tool 50, it is desirable to arrange the horizontal rope 31 on the slope mountain side of the anchor 40, that is, on the upper side of the mooring roller 53.
  • a load directed to the slope valley acting on the horizontal rope 31 can be efficiently transmitted to the anchor 40 via the mooring roller 53.
  • the crossing portion of the vertical and horizontal ropes 30 and 31 is moored to the anchor 40 via the support mooring tool 50 by a simple operation of simply inserting the vertical and horizontal ropes 30 and 31 into each of the supporting mooring tools 50. And can be fixed.
  • the net and the rope are fixed to the slope at the same time.
  • the stability of the slope 10 is secured by performing the fixing work of the net 20 in advance, so that the subsequent retrofitting work of the vertical and horizontal ropes 30 and 31 can be performed in a safe environment within a short time. Can be done efficiently.
  • the support mooring tool 50 serves as both the fixing tool for the net 20 and the anchoring tool for the vertical and horizontal ropes 30 and 31, there is no need to use two types of fixing tools separately as in the prior art.
  • the net 20 covered in the protection range of the slope 10 is fixed to the plurality of anchors 40 via the support pressure mooring tool 50 and routed on the surface side of the net 20.
  • the vertical and horizontal ropes 30 and 31 for reinforcement are also fixed to the plurality of anchors 40 via the supporting pressure mooring tools 50.
  • the net 20 and the vertical and horizontal ropes 30 and 31 obtain a reaction force from the anchor 40 and restrain the slope 10 to prevent the floating stone 11 and the like from falling.
  • the slope 10 covered with the net 20 and the vertical and horizontal ropes 30 and 31 is constrained by being divided into a plurality of units with a range surrounded by four supporting pressure moorings 50 adjacent in the vertical and horizontal directions as a unit. . Further, the vertical and horizontal ropes 30 and 31 are moored to the supporting pressure mooring tools 50 so that a load acting on a part of the ropes can be transmitted over the entire length of the ropes. Accordingly, the load generated in a specific section is supported by being distributed to the plurality of anchors 40 beyond the specific section, and the load acting on a part of the specific vertical and horizontal ropes 30 and 31 through the net 20 is specified.
  • the vertical and horizontal ropes 30 and 31 can be distributed and transmitted over the entire length of the rope, and finally the vertical and horizontal ropes 30 and 31 can be distributed and supported by all anchors 40, so that a specific section of the net 20 is surrounded.
  • the load burden of each anchor 40 is greatly reduced.
  • the slope 10 collapses in comparison with the conventional netting method in which not only the net but also the rope is prevented from transmitting the load at the place where the anchor is fixed. Deterrence increases.
  • the plurality of ropes are arranged so as to intersect with each other in the oblique direction. May be.
  • a plurality of ropes may be attached to the surface of the net 20 in a crossing direction.
  • only one of the vertical and horizontal ropes 30 and 31 may be installed.
  • the net 20A includes a net body 21 such as a high-strength turtle shell metal net, It is comprised by the vertical rope 30 previously attached to the right-and-left both-sides edge of this net
  • the wire of the side edge part which comprises the net main body 21 is wound around the vertical rope 30 and connected, but may be connected using a separate connecting material, and the net main body 21 and the vertical rope 30 may be connected. There are no particular restrictions on the means.
  • Anchor work A plurality of anchors 40 are provided on the slope 10 on which rocks or the like are scattered.
  • net coating work The nets 20A with the vertical ropes 30 are laid in the vertical direction in the protection range of the slope 10, and the butt portions of the side edges of the adjacent nets 20A with the vertical ropes 30 are wound. It is connected by a connecting material 22 such as an attachment wire to give continuity to the net 20A.
  • a supporting mooring tool 50 is installed on the head of the anchor 40 that protrudes through the net 20, and a plurality of locations of the net 20 are fixed to restrain the slope 10.
  • the support mooring tool 50 is installed on the head of the anchor 40 protruding from the side edge of the net 20A, and a plurality of locations of the net 20A are fixed to the slope 10.
  • the supporting mooring tool 50 is fixed across the adjacent vertical ropes 30 and 30 at the abutting portion of the side edge of the net 20 ⁇ / b> A with the adjacent vertical ropes 30.
  • the horizontal rope 31 is routed on the surface of the net 20 ⁇ / b> A while being moored to each supporting mooring device 50 installed on the head of the anchor 40.
  • the end of the rope 31 is fixed in the same manner as in the previous embodiment, and the horizontal rope 31 is retrofitted to the surface of the net 20A.
  • the retrofitting work of the rope may be only the horizontal rope 31. Therefore, the workability of the retrofitting work of the rope is further improved as compared with the case where the vertical and horizontal ropes 30, 31 are retrofitted. Get better.
  • Collapsing prevention action A restraining and supporting action of the slope 10 by the cooperation of the net 20 and the vertical and horizontal ropes 30 and 31, a part of the horizontal rope 31 for supporting and anchoring the load so that the load can be transmitted over the entire length of the rope. 50 is adjusted according to the risk of collapsing depending on the location of the slope 10 by appropriately selecting the load dispersion supporting action by mooring to 50 and the number and arrangement direction of the lateral ropes 31 as appropriate.
  • the adjustment operation of the collapse deterring force is the same as that of the above-described embodiment, and thus the description thereof is omitted.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)

Abstract

[Problem] To improve work efficiency and improve work safety, reduce the load burden for the anchor and rope after construction, and quickly and economically support, in whole or in part, a slope. [Solution] A bearing anchor (50) that has both the load fixing function of a net (20) and the anchoring function of a plurality of ropes (30, 31) is used. After fixing the net (20), which covers a slope (10), by way of the bearing anchor (50), the ropes (30, 31) are arranged among the plurality of bearing anchors (50) for reinforcement. While transmitting the load acting upon a portion of the ropes (30, 31) over the entire rope, the load is supported by dispersing the same among a plurality of anchors (40).

Description

斜面の保護構造および保護方法Slope protection structure and protection method
　本発明は落石や土砂崩落を防止する斜面の保護構造および保護方法に関する。 The present invention relates to a slope protection structure and a protection method for preventing falling rocks and landslides.
　浮石の落下や土砂崩落の危険性のある斜面の保護手段として、金網またはワイヤロープ製ネットで斜面を覆い、金網の複数個所またはロープ製ネットの交点を専用アンカーで固定することが特許文献１，２に開示されている。
　特許文献３には、斜面を金網と縦横ロープで覆い、縦横ロープの交点と金網を一緒にアンカーに固定することが開示されている。 Patent Document 1, as a means of protecting slopes where there is a risk of falling rocks or landslides, covering the slope with a wire mesh or wire rope net and fixing the intersections of the wire mesh or the rope net with special anchors 2 is disclosed.
Patent Document 3 discloses that the slope is covered with a wire mesh and vertical and horizontal ropes, and the intersection of the vertical and horizontal ropes and the wire mesh are fixed to the anchor together.
　また斜面に点在する各浮石の崩落の危険度が均一ではないことから、崩落の危険度が高い箇所は斜面を部分的に補強する必要がある。
　覆網した斜面を部分的に補強する手段としては、補強範囲を補助網で覆い、該補助網の周囲を専用アンカーで固定することが特許文献３に開示され、また補強範囲に補強ロープを這わせ、該補強ロープの両端を専用アンカーで固定することが特許文献４に開示されている。 In addition, since the risk of collapse of each pumice scattered on the slope is not uniform, it is necessary to partially reinforce the slope at a location where the risk of collapse is high.
As means for partially reinforcing the covered slope, it is disclosed in Patent Document 3 that a reinforcing range is covered with an auxiliary net and the periphery of the auxiliary net is fixed with a dedicated anchor, and a reinforcing rope is attached to the reinforcing range. Patent Document 4 discloses that both ends of the reinforcing rope are fixed with dedicated anchors.
特開２００９－２４９８２３号公報（図６）JP 2009-249823 A (FIG. 6) 特開平８－２６０４２３号公報（図１，２）JP-A-8-260423 (FIGS. 1 and 2) 特開２００９－２０３６８１号公報（図６，図１１）JP 2009-203681 A (FIGS. 6 and 11) 特開２０００－２７１２３号公報（図１）JP 2000-27123 A (FIG. 1)
　従来の斜面の保護技術は次の問題点がある。
＜１＞金網単独またはロープ製ネット単独で斜面を覆網する特許文献１，２に記載の覆網工法にあっては、浮石や土砂の崩落抑止力が小さい。
＜２＞特許文献１～３に記載の覆網工法は、ロープの固定箇所で荷重の伝達が阻止される構造である。
　そのため、各アンカーに高いアンカー耐力が求められるだけでなく、ロープも引張強度の高いものを使用しなければならず、コストおよび施工性の点で改善の余地がある。
＜３＞特許文献３，４に記載の斜面を追加補強する方法にあっては、多数の専用アンカーを追加設置しなければならず、作業に時間がかかり補強コストが嵩むといった問題がある。
＜４＞斜面を覆網して保護した後において、地震等により浮石の落下や土砂崩落の危険度が増した場合、迅速かつ経済的に対応し得る好適な技術が未だ提案されていない。
＜５＞アンカー頭部に定着板を設置した後にナットを締め付けて覆網を斜面に押し付けて固定する従来の覆網工法にあっては、老朽化したロープを新たなロープと交換するために各アンカー箇所でナットと定着板を着脱する必要があるため、覆網の維持管理に多くの労力と時間を要する問題と、ロープの交換が完了するまでの間はロープが存在しないことになって危険である。
＜６＞この種の斜面は急峻で作業環境が悪く、作業中に浮石等が落下する危険がある。
　作業員は宙吊り状態での作業を強いられるため覆網工の作業効率が悪く、作業時間が長くかかるうえに、作業員が危険な環境下に長時間さらされて作業の安全性が脅かされるといった問題がある。 Conventional slope protection technology has the following problems.
<1> In the netting method described in Patent Documents 1 and 2 in which a slope is covered with a wire net alone or a rope net alone, the fallen rocks and earth and sand collapse prevention force is small.
<2> The netting method described in Patent Documents 1 to 3 has a structure in which transmission of a load is prevented at a fixed portion of a rope.
Therefore, not only a high anchor strength is required for each anchor, but also a rope having a high tensile strength must be used, and there is room for improvement in terms of cost and workability.
<3> In the method of additionally reinforcing the slope described in Patent Documents 3 and 4, a large number of dedicated anchors must be additionally installed, and there is a problem that the work takes time and the reinforcement cost increases.
<4> After the slope is covered and protected, when the risk of falling rocks or landslides increases due to an earthquake or the like, a suitable technique that can respond quickly and economically has not yet been proposed.
<5> In the conventional cover net construction method in which the fixing plate is installed on the anchor head and then the nut is tightened to press the cover net against the slope to fix it, in order to replace the old rope with a new rope, Since it is necessary to attach and detach the nut and the fixing plate at the anchor point, it takes a lot of labor and time to maintain the net, and it is dangerous because the rope does not exist until the rope replacement is completed It is.
<6> This kind of slope is steep and the working environment is bad, and there is a risk of falling rocks and the like during the work.
Workers are forced to work in the suspended state, so the work efficiency of the netting work is poor, the work time is long, and the worker is exposed to a dangerous environment for a long time and the safety of the work is threatened. There's a problem.
　本発明は以上の点に鑑みて成されたもので、その目的とするところは少なくともつぎのひとつの斜面の保護技術を提供することにある。
＜１＞斜面における作業効率を改善しつつ、作業の安全性を向上できること。
＜２＞ロープとアンカーの荷重負担を軽減すること。
＜３＞斜面の全体補強または部分補強を迅速かつ経済的に行えること。 The present invention has been made in view of the above points, and an object of the present invention is to provide at least one slope protection technique.
<1> Capability to improve work safety while improving work efficiency on slopes.
<2> To reduce the load on the rope and anchor.
<3> Capable of quickly and economically reinforcing the entire slope or partially reinforcing the slope.
　本願の第１発明は、斜面の保護範囲に亘って覆網したネットと、該ネットに交差方向に組み合せて付設する複数のロープとを、斜面に設けたアンカーに取り付けて斜面の表面を拘束する斜面の保護構造であって、前記ネットの支圧固定機能と、前記複数のロープの係留機能を併有する支圧係留具を使用し、前記支圧係留具が中央にアンカー頭部を挿通可能な挿通孔を有する一対の拘束板と、該拘束板の中央部間に回転自在に設置し、その中心にアンカー頭部を挿通可能な挿通孔を形成した係留ローラと、前記拘束板の周縁部間に架設した規制ピンとを具備し、前記係留ローラと規制ピンとの間にロープを挿通可能な挿通空間を形成しており、前記アンカーの頭部に設置した支圧係留具によって斜面を覆網したネットを固定し、前記ネットの固定に使用した前記複数の支圧係留具の間に前記ロープの両端部間を係留して配索するとともに、前記ロープの両端部を斜面に固定し、前記ネットを通じてロープの一部に作用した荷重を当該ロープの全長に亘って伝達しつつ、当該ロープに伝達した荷重を前記支圧係留具を介して複数のアンカーに分散して支持させたことを特徴とする。
　本願の第２発明は、前記第１発明において、前記交差方向に組み合せたロープが単数ロープ同士の組み合せ、複数ロープ同士の組み合せ、または単数ロープと複数ロープの組み合わせの何れかひとつであることを特徴とする。
　本願の第３発明は、前記第２発明において、前記交差方向に組み合せたロープが、斜面の縦方向に配置した縦ロープと、斜面の横方向に配置した横ロープの組み合せであることを特徴とする。
　本願の第４発明は、前記第２発明において、前記交差方向に組み合せたロープが、斜面の縦方向に配置した縦ロープと、斜面の横方向に配置した横ロープと、斜面の斜め方向に配置した斜ロープとの組み合せであることを特徴とする。
　本願の第５発明は、前記第２発明において、前記交差方向に組み合せたロープが斜面の縦横方向に配置したロープであって、縦方向のロープが予め前記ネットの左右の両側縁に取り付けてあることを特徴とする。
　本願の第６発明は、斜面の複数箇所にアンカーを設けた後に斜面をネットで覆い、アンカーに反力を得て斜面に覆網したネットを斜面に固定し、前記ネットに交差方向に組み合せた複数のロープを付設して斜面を保護する方法であって、前記ネットの支圧固定機能と、前記複数のロープの係留機能を併有する支圧係留具を使用し、前記支圧係留具が中央にアンカー頭部を挿通可能な挿通孔を有する一対の拘束板と、該拘束板の中央部間に回転自在に設置し、その中心にアンカー頭部を挿通可能な挿通孔を形成した係留ローラと、前記拘束板の周縁部間に架設した規制ピンとを具備し、前記係留ローラと規制ピンとの間にロープを挿通可能な挿通空間を形成しており、アンカーの頭部に取り付けた前記支圧係留具によって斜面に覆網したネットを斜面に固定するネットの覆網工と、前記ネットの固定に使用した前記複数の支圧係留具の間に前記ロープの両端部間を係留して配索するとともに、前記ロープの両端部を斜面に固定してネットに交差方向に組み合せてロープを付設するロープの後付け付設工と、を具備し、前記アンカーから反力を得て固定したネットと、ロープの一部に作用した荷重を当該ロープの全長に亘って伝達可能な複数のロープとにより斜面の表面を拘束することを特徴とする。
　本願の第７発明は、前記第６発明において、前記複数の支圧係留具の間に追加用のロープの両端部間を係留して配索するとともに、前記追加用のロープの両端部を斜面に固定するロープの追加後付け工をさらに含むことを特徴とする。
　本願の第８発明は、前記第６または第７発明において、前記交差方向に組み合せたロープが単数ロープ同士の組み合せ、複数ロープ同士の組み合せ、または単数ロープと複数ロープの組み合わせの何れかひとつであることを特徴とする。
　本願の第９発明は、前記第８発明において、前記交差方向に組み合せたロープが、斜面の縦方向に配置した縦ロープと、斜面の横方向に配置した横ロープの組み合せであることを特徴とする。
　本願の第１０発明は、前記第８発明において、前記交差方向に組み合せたロープが、斜面の縦方向に配置した縦ロープと、斜面の横方向に配置した横ロープと、斜面の斜め方向に配置した斜ロープとの組み合せであることを特徴とする。
　本願の第１１発明は、前記第８発明において、前記交差方向に組み合せたロープが斜面の縦横方向に配置したロープであって、縦方向のロープが予め前記ネットの左右の両側縁に取り付けてあり、縦方向のロープ付きのネットを斜面に固定した後に、横方向のロープをネットに後付することを特徴とする。 1st invention of this application attaches the net covered over the protection range of the slope, and a plurality of ropes attached to the net in a crossing direction to an anchor provided on the slope to restrain the surface of the slope. A slope protection structure using a support mooring device having both a net support pressure fixing function and a plurality of rope mooring functions, and the support mooring device can insert an anchor head in the center. Between a pair of restraint plates having insertion holes, a mooring roller that is rotatably installed between the center portions of the restraint plates and has an insertion hole through which the anchor head can be inserted, and the peripheral portion of the restraint plate A net having an insertion space into which a rope can be inserted between the mooring roller and the regulation pin, and whose slope is covered with a support mooring device installed on the head of the anchor. Secure the net The both ends of the rope are moored between the plurality of support moorings used in the wiring, and both ends of the rope are fixed to the slope, and the load acts on a part of the rope through the net Is transmitted over the entire length of the rope, and the load transmitted to the rope is dispersed and supported by a plurality of anchors via the support mooring device.
A second invention of the present application is characterized in that, in the first invention, the rope combined in the intersecting direction is any one of a combination of a single rope, a combination of a plurality of ropes, or a combination of a single rope and a plurality of ropes. And
A third invention of the present application is characterized in that, in the second invention, the rope combined in the intersecting direction is a combination of a vertical rope arranged in the vertical direction of the slope and a horizontal rope arranged in the horizontal direction of the slope. To do.
According to a fourth invention of the present application, in the second invention, the rope combined in the intersecting direction is arranged in a vertical rope arranged in the vertical direction of the slope, a horizontal rope arranged in the horizontal direction of the slope, and an oblique direction of the slope. It is characterized by the combination with the slanted rope.
A fifth invention of the present application is the rope according to the second invention, wherein the ropes combined in the intersecting direction are arranged in the vertical and horizontal directions of the slope, and the vertical ropes are attached in advance to the left and right side edges of the net. It is characterized by that.
In the sixth invention of the present application, after providing anchors at a plurality of positions on the slope, the slope is covered with a net, a net obtained by obtaining a reaction force on the anchor and fixing the net on the slope is fixed to the slope, and combined with the net in the crossing direction. A method of attaching a plurality of ropes to protect a slope, wherein a support mooring tool having both a support pressure fixing function of the net and a mooring function of the plurality of ropes is used, and the support mooring tool is in the center A pair of constraining plates having an insertion hole through which the anchor head can be inserted, a mooring roller which is rotatably installed between the central portions of the constraining plate and has an insertion hole through which the anchor head can be inserted; And a restraining pin installed between the peripheral edges of the restraint plate, forming an insertion space into which a rope can be inserted between the anchoring roller and the restraining pin, and the supporting pressure mooring attached to the head of the anchor Net covered on slope with tools Between the net covering work of the net fixed to the slope and the plurality of supporting moorings used for fixing the net, the both ends of the rope are moored and wired, and the both ends of the rope are inclined. And a post-installation of a rope which is attached to the net in a crossing direction and attached to the net, and the net obtained by fixing the reaction force from the anchor and a load acting on a part of the rope The surface of the slope is constrained by a plurality of ropes that can be transmitted over the entire length.
According to a seventh invention of the present application, in the sixth invention, the both ends of the additional rope are moored and arranged between the plurality of supporting moorings, and both ends of the additional rope are inclined. It further includes an additional retrofitting work of a rope to be fixed to the cable.
The eighth invention of the present application is the sixth or seventh invention, wherein the rope combined in the intersecting direction is any one of a combination of single ropes, a combination of multiple ropes, or a combination of a single rope and multiple ropes. It is characterized by that.
A ninth invention of the present application is characterized in that, in the eighth invention, the rope combined in the intersecting direction is a combination of a vertical rope arranged in the vertical direction of the slope and a horizontal rope arranged in the horizontal direction of the slope. To do.
According to a tenth aspect of the present invention, in the eighth aspect, the rope combined in the intersecting direction is arranged in a vertical rope arranged in the vertical direction of the slope, a horizontal rope arranged in the horizontal direction of the slope, and an oblique direction of the slope. It is characterized by the combination with the slanted rope.
An eleventh invention of the present application is the rope according to the eighth invention, wherein the ropes combined in the intersecting direction are arranged in the vertical and horizontal directions of the slope, and the vertical ropes are attached in advance to the left and right side edges of the net. After fixing the net with the rope in the vertical direction to the slope, the rope in the horizontal direction is retrofitted to the net.
　本発明は少なくともつぎのひとつの効果を奏する。
＜１＞支圧係留具を使用して斜面を覆網したネットの先行固定作業を速やかに行って斜面を拘束した後に、複数の支圧係留具の間にロープを配索するものである。
　したがって、ロープの後付け作業を安全な環境下で短時間のうちに効率よく行うことができる。
＜２＞支圧係留具を使用することで、ロープの一部に作用した荷重を当該ロープの全長に亘って伝達可能であり、さらにロープの一部に作用した荷重を複数のアンカーに分散して支持させることができる。
　したがって、ロープとアンカーの荷重負担を軽減できて、理想的な荷重負担が可能であるだけでなく、従来の覆網工法と比べて斜面の拘束効果が向上する。
＜３＞ロープの本数や配索方向を適宜選択することで、斜面に存在する浮石等の大きさや崩落の危険度に応じて最適な崩落抑止力に調整することができる。
＜４＞施工後に斜面の崩落の危険度が増した場合には、追加用のアンカーを設けることなく、既設のアンカーと既設の支圧係留具を活用して任意の区間に亘って追加用のロープを設置することができる。
　したがって、斜面の全体補強または部分補強を迅速かつ経済的に行える。
＜５＞全体に影響を与えずに部分的に経年劣化したロープの交換を簡易に行えるので、ロープの維持管理が簡単であり、かつ維持管理コストを低廉化できる。
＜６＞支圧係留具がネットの固定具とロープの係留具を兼用するので、従来のように二種類の固定具を使い分けする必要がない。 The present invention has at least one of the following effects.
<1> A rope is routed between a plurality of support moorings after promptly fixing the slope by using a support mooring tool to quickly fix the net covering the slope.
Therefore, the retrofitting work of the rope can be efficiently performed in a short time in a safe environment.
<2> By using a support mooring tool, it is possible to transmit the load acting on a part of the rope over the entire length of the rope, and further distributing the load acting on a part of the rope to a plurality of anchors. Can be supported.
Therefore, the load burden of the rope and anchor can be reduced, and not only an ideal load burden is possible, but also the effect of restraining the slope is improved as compared with the conventional netting method.
<3> By appropriately selecting the number of ropes and the routing direction, it is possible to adjust to the optimal collapse prevention force according to the size of floating stones etc. existing on the slope and the risk of collapse.
<4> If the risk of slope collapse increases after construction, the existing anchor and the existing support mooring tool will be used for any additional section without providing an additional anchor. A rope can be installed.
Accordingly, the entire or partial reinforcement of the slope can be performed quickly and economically.
<5> Since it is possible to easily replace a partially deteriorated rope without affecting the whole, the maintenance of the rope is simple and the maintenance cost can be reduced.
<6> Since the support mooring device serves as both a net fixing device and a rope mooring device, there is no need to use two types of fixing devices separately as in the prior art.
本発明に係る斜面の保護構造の平面モデル図Plane model diagram of the slope protection structure according to the present invention 支圧係留具の一部を破断したネットの固定部の拡大斜視図Enlarged perspective view of the fixed part of the net with part of the support mooring device broken 支圧係留具を用いたネットの固定部の縦断面図Longitudinal sectional view of the fixed part of the net using the support mooring tool 覆網の施工方法の説明図で、（Ａ）はアンカー工のモデル図、（Ｂ）はネットの被覆工と固定工のモデル図It is explanatory drawing of the construction method of a covering net, (A) is a model figure of an anchor work, (B) is a model figure of a net covering work and a fixing work 支圧係留具と縦横ロープとの係留部の水平断面図Horizontal sectional view of the mooring section between the support mooring tool and the vertical and horizontal ropes 最外端のアンカーと縦横ロープの端部の固定部の水平断面図Horizontal sectional view of the anchor at the outermost end and the fixed part at the end of the vertical and horizontal ropes 縦横ロープの設置本数、配設方向を選択して崩落抑止力を調整する斜面の保護構造の平面モデル図Plan model diagram of the protection structure of the slope that adjusts the collapse prevention force by selecting the number and installation direction of the vertical and horizontal ropes 縦ロープ付きのネットを用いた変形例２に係る斜面の保護構造の平面モデル図Plane model diagram of the slope protection structure according to Modification 2 using a net with a vertical rope 変形例２における縦ロープ付きのネットの突き合せ箇所の平面図The top view of the butted part of the net with a vertical rope in modification 2
　以下に図面を参照しながら本発明の実施の形態について説明する。 Embodiments of the present invention will be described below with reference to the drawings.
＜１＞斜面の保護構造の概要
　図１を参照して説明すると、本発明に係る斜面の保護構造は、浮石１１等が存在する保護対象の斜面１０を覆うネット２０と、ネット２０の表面に所定の間隔を隔てて付設した複数の縦横ロープ３０，３１と、斜面１０の複数個所に定着したアンカー４０と、アンカー４０に反力を得てネット２０を定着しつつ、縦横ロープ３０，３１を係止して位置決めする支圧係留具５０とを具備する。
　縦横ロープ３０，３１とネット２０との間は、連結コイル等の連結具３２で連結してある。 <1> Overview of Slope Protection Structure Referring to FIG. 1, the slope protection structure according to the present invention includes a net 20 covering a slope 10 to be protected on which a float stone 11 and the like exist, and a surface of the net 20. A plurality of vertical and horizontal ropes 30 and 31 attached at a predetermined interval, anchors 40 fixed at a plurality of positions on the slope 10, and the vertical and horizontal ropes 30 and 31 while fixing the net 20 by obtaining reaction force on the anchors 40. And a supporting mooring tool 50 for locking and positioning.
The vertical and horizontal ropes 30 and 31 and the net 20 are connected by a connection tool 32 such as a connection coil.
　本発明はアンカー４０と支圧係留具５０を併用して斜面１０に覆網したネット２０を先行して固定し、ネット２０の固定に用いた支圧係留具５０を兼用してネット２０の表面に縦横ロープ３０，３１を安全な環境下で後付けするようにしたものである。 In the present invention, the anchor 20 and the supporting mooring tool 50 are used together to fix the net 20 covered with the slope 10 in advance, and the supporting mooring tool 50 used for fixing the net 20 is also used as the surface of the net 20. The vertical and horizontal ropes 30 and 31 are retrofitted in a safe environment.
＜２＞ネット
　保護対象の斜面１０に展張するネット２０は、可撓性、高耐力および耐候性に優れたネット状物で、例えば高強度亀甲金網、菱形金網、樹脂被覆金網等の金属製の金網や、樹脂製ネット、高強度繊維を芯材とした樹脂製ネット、繊維製ネット等の非金属製のネットを含む。 <2> Net The net 20 that is stretched on the slope 10 to be protected is a net-like material that is excellent in flexibility, high strength, and weather resistance. Includes metal nets, resin nets, non-metal nets such as resin nets made of high-strength fibers and fiber nets.
＜３＞ロープ
　縦ロープ３０と横ロープ３１は一対のアンカー４０，４０の区間距離以上の長さを有する連続した金属製または非金属製のロープであり、ネット２０の表面に張設してある。
　各縦横ロープ３０，３１の両端部間（中間部）はそれぞれ複数の支圧係留具５０に係留し、各縦横ロープ３０，３１の端部は、支圧係留具５０を介して最外端のアンカー４０に直接固定するか、最外端のアンカー４０に直接固定する。
　各縦横ロープ３０，３１の端部は、斜面１０に固定してあればよい。
　各縦横ロープ３０，３１の両端部間を支圧係留具５０に係留させたのは、各ロープ縦横ロープ３０，３１の一部に作用した荷重をそのロープの全長に亘って伝達し得るようにするためである。 <3> Rope The vertical rope 30 and the horizontal rope 31 are continuous metal or non-metal ropes having a length equal to or longer than the distance between the pair of anchors 40 and 40, and are stretched on the surface of the net 20. .
Between both end portions (intermediate portions) of the vertical and horizontal ropes 30 and 31 are moored to a plurality of support pressure moorings 50, and the ends of the vertical and horizontal ropes 30 and 31 are connected to the outermost ends via the support pressure moorings 50. Fix directly to the anchor 40 or directly to the outermost anchor 40.
The ends of the vertical and horizontal ropes 30 and 31 may be fixed to the slope 10.
The reason that the support mooring device 50 is moored between the both ends of each of the vertical and horizontal ropes 30 and 31 is that the load acting on a part of the vertical and horizontal ropes 30 and 31 can be transmitted over the entire length of the rope. It is to do.
＜４＞支圧係留具
　支圧係留具５０はネット２０の複数個所を斜面１０に押し付けて固定しつつ、複数の縦横ロープ３０，３１を係留するための兼用治具であり、アンカー４０の頭部に設置して固定する。
　支圧係留具５０は縦横ロープ３０，３１の配索方向や係留本数に制約がなく、複数のアンカー４０の頭部間に跨って任意の方向へ向けて任意の本数を配索することが可能である。縦横ロープ３０，３１の配索方向や係留本数を任意に設定し得るようにしたのは、斜面１０の状況に応じて部分的に崩落抑止力を調整するためである。 <4> Supporting Mooring Tool The supporting pressure mooring tool 50 is a dual-purpose jig for mooring a plurality of vertical and horizontal ropes 30 and 31 while pressing and fixing a plurality of portions of the net 20 against the slope 10. Install in place and fix.
The support mooring tool 50 is not limited in the direction of the vertical and horizontal ropes 30 and 31 and the number of moorings, and can be wired in any direction across the heads of the plurality of anchors 40 in any direction. It is. The reason why the routing direction and the number of moorings of the vertical and horizontal ropes 30 and 31 can be arbitrarily set is to partially adjust the collapse prevention force according to the situation of the slope 10.
　図２，３に例示した支圧係留具５０について説明すると、支圧係留具５０は相対向して配置し、中央に挿通孔５１ａ，５２ａを有する一対の拘束板５１，５２と、拘束板５１，５２の中央部間に回転自在に設置し、その中心に挿通孔５３ａを形成した係留ローラ５３と、拘束板５１，５２の周縁部間に架設した規制ピン５４とを具備する。
　係留ローラ５３と規制ピン５４との間にはロープを挿通可能な挿通空間５５を形成している。挿通空間５５の大きさは、ロープの挿通本数を考慮して適宜選択する。
　支圧係留具５０は複数の挿通孔５１ａ，５２ａ，５３ａを通じてアンカー４０の頭部と貫挿可能である。 The support mooring tool 50 illustrated in FIGS. 2 and 3 will be described. The support mooring tools 50 are arranged to face each other and have a pair of restraining plates 51, 52 having insertion holes 51a, 52a in the center, and the restraining plate 51. , 52 is rotatably installed between the central portions of the two and the anchoring rollers 53 having an insertion hole 53a formed at the center thereof, and a restriction pin 54 provided between the peripheral portions of the restraining plates 51 and 52.
An insertion space 55 into which a rope can be inserted is formed between the mooring roller 53 and the regulation pin 54. The size of the insertion space 55 is appropriately selected in consideration of the number of ropes inserted.
The support mooring tool 50 can be inserted into the head of the anchor 40 through the plurality of insertion holes 51a, 52a, 53a.
＜４．１＞拘束板
　拘束板５１，５２はネット２０の表面を支圧する機能と、規制ピン５４との協働による縦横ロープ３０，３１の外れ防止機能を併有する。
　下位の拘束板５１はネット２０に対して支圧可能な形態であればよく、また上位の拘束板５２は規制ピン５４と協働して各ロープ３０，３１の外れを防止できる構造であればよい。
　図面では拘束板５１，５２が同一の環状形を呈する形態を示しているが、拘束板５１，５２の平面形状に制約はなく、矩形であってもよい。 <4.1> Restraint Plates The restraint plates 51 and 52 have both a function of supporting the surface of the net 20 and a function of preventing the vertical and horizontal ropes 30 and 31 from coming off in cooperation with the regulation pin 54.
The lower restraint plate 51 may be in a form capable of bearing against the net 20, and the upper restraint plate 52 may have a structure that can prevent the ropes 30 and 31 from coming off in cooperation with the restriction pin 54. Good.
In the drawings, the constraining plates 51 and 52 have the same annular shape. However, the planar shape of the constraining plates 51 and 52 is not limited, and may be rectangular.
＜４．２＞係留ローラ
　係留ローラ５３はアンカー４０に枢支させるローラで、縦横ロープ３０，３１の係留機能を有する。
　本例では係留ローラ５３が環状溝を有するシーブ形状を呈する形態を示すが、溝のない均一径であってもよい。
　係留ローラ５３を回転可能に設けたのは、各縦横ロープ３０，３１の全長に亘る荷重の伝達性をよくするためと、係留ローラ５３と縦横ロープ３０，３１間の摩擦抵抗を小さくするためである。 <4.2> Mooring Roller The mooring roller 53 is a roller that is pivotally supported by the anchor 40 and has a mooring function for the vertical and horizontal ropes 30 and 31.
In this example, the mooring roller 53 has a sheave shape having an annular groove, but may have a uniform diameter without a groove.
The mooring roller 53 is provided so as to be rotatable in order to improve load transferability over the entire length of the vertical and horizontal ropes 30 and 31 and to reduce the frictional resistance between the mooring roller 53 and the vertical and horizontal ropes 30 and 31. is there.
＜４．３＞規制ピン
　規制ピン５４は拘束板５１，５２との協働により縦横ロープ３０，３１の外れ防止機能を有する。規制ピン５４の設置数はロープの係留本数に応じて適宜選択し、一本以上を具備していればよい。 <4.3> Restriction Pin The restriction pin 54 has a function of preventing the vertical and horizontal ropes 30 and 31 from coming off in cooperation with the restriction plates 51 and 52. The number of restriction pins 54 to be installed is appropriately selected according to the number of ropes moored, and it is sufficient that at least one restriction pin 54 is provided.
＜５＞アンカー
　アンカー４０は支圧係留具５０を緊張して定着するためのもので、例えばロックボルト、グラウンドアンカー、ロープ製アンカー等の公知の各種アンカーを適用できる。
　本例ではアンカー４０としてナット４１で締め付けるロックボルトを適用した形態について示す。 <5> Anchor The anchor 40 is used for tensioning and fixing the support mooring device 50, and various known anchors such as a lock bolt, a ground anchor, and a rope anchor can be used.
In this example, a configuration in which a lock bolt that is tightened with a nut 41 is applied as the anchor 40 will be described.
［施工方法］
　つぎに覆網の施工方法について説明する。 [Construction method]
Next, a method for constructing a cover net will be described.
＜１＞アンカー工
　図４（Ａ）に示すように、浮石１１等が点在する斜面１０に複数のアンカー４０を設ける。
　本発明では、縦横ロープ３０，３１の配索本数と配索方向を任意に選択して斜面１０の状況に応じて部分的に崩落抑止力を調整できるので、アンカー４０の設置間隔を均等にする必要はなく、現場の状況に応じた適宜の間隔でよい。 <1> Anchor Work As shown in FIG. 4 (A), a plurality of anchors 40 are provided on the slope 10 where the float stones 11 and the like are scattered.
In the present invention, the number and length of the vertical and horizontal ropes 30 and 31 can be arbitrarily selected and the collapse prevention force can be partially adjusted according to the situation of the slope 10, so that the installation intervals of the anchors 40 are equalized. There is no need, and an appropriate interval according to the situation at the site may be used.
＜２＞ネットの被覆工
　図４（Ｂ）に示すように、保護範囲に亘って斜面１０の表面をネット２０で覆い、ネット２０の網目を通じてアンカー４０の頭部を貫挿する。 <2> Net Covering Work As shown in FIG. 4B, the surface of the slope 10 is covered with the net 20 over the protection range, and the head of the anchor 40 is inserted through the mesh of the net 20.
＜３＞ネットの固定工
　ネット２０の表面から突出したアンカー４０の頭部に支圧係留具５０を設置して、ネット２０の周縁とその内方の複数箇所を固定することで、斜面１０に点在する浮石１１等の変位を拘束する。 <3> Fixing work of the net By installing the support mooring tool 50 on the head of the anchor 40 protruding from the surface of the net 20 and fixing the peripheral edge of the net 20 and a plurality of locations inside the net 20, The displacement of the scattered rock stones 11 is restricted.
　図２，３を参照して支圧係留具５０を用いたネット２０の固定構造について詳しく説明する。
　アンカー４０の頭部に支圧係留具５０の挿通孔５１ａ，５２ａ，５３ａを挿通させ、上位の拘束板５１から突出したアンカー４０の頭部に螺着したナット４１を締め付けるだけの作業で、ネット２０の複数箇所を斜面１０に変位不能に固定することができる。 The fixing structure of the net 20 using the bearing mooring tool 50 will be described in detail with reference to FIGS.
By simply inserting the insertion holes 51a, 52a, 53a of the support mooring tool 50 into the head of the anchor 40 and tightening the nut 41 screwed to the head of the anchor 40 protruding from the upper restraint plate 51, the net A plurality of 20 locations can be fixed to the slope 10 so that they cannot be displaced.
＜４＞ロープの後付け工
　図１に示すように、アンカー４０の頭部に設置した各支圧係留具５０に係留しながらネット２０の表面に縦横ロープ３０，３１を配索するとともに、各縦横ロープ３０，３１の端部を、支圧係留具５０を介して最外端のアンカー４０に固定して、ネット２０の表面に縦横ロープ３０，３１を後付けする。
　最後に各縦横ロープ３０，３１とネット２０との間を連結材３２で連結して斜面１０の覆網作業を終了する。 <4> Retrofitting of Rope As shown in FIG. 1, the vertical and horizontal ropes 30 and 31 are routed on the surface of the net 20 while being moored to each support mooring device 50 installed on the head of the anchor 40, and each vertical and horizontal The ends of the ropes 30, 31 are fixed to the outermost anchor 40 via the support mooring tool 50, and the vertical and horizontal ropes 30, 31 are retrofitted to the surface of the net 20.
Finally, the vertical and horizontal ropes 30 and 31 and the net 20 are connected to each other by the connecting member 32, and the covering work of the slope 10 is completed.
　図５に各縦横ロープ３０，３１と支圧係留具５０の係留部を示す。
　隣り合う支圧係留具５０の挿通空間５５に順次貫挿して係留した各縦横ロープ３０，３１は、挿通空間５５を画成する係留ローラ５３、規制ピン５４および上位の拘束板５２により外れが防止される。 FIG. 5 shows the mooring portions of the vertical and horizontal ropes 30 and 31 and the supporting pressure mooring tool 50.
The vertical and horizontal ropes 30, 31 that are sequentially inserted and anchored in the insertion space 55 of the adjacent support mooring tool 50 are prevented from being detached by the anchoring roller 53, the restriction pin 54, and the upper restraint plate 52 that define the insertion space 55. Is done.
　各縦横ロープ３０，３１の両端部は斜面１０に固定する。
　図６では各縦横ロープ３０，３１の両端部を、最外端のアンカー４０に取着した支圧係留具５０の係留ローラ５３に巻き掛けてクリップ３３で固定した形態を示すが、最外端のアンカー４０に直接固定してもよい。 Both ends of the vertical and horizontal ropes 30 and 31 are fixed to the slope 10.
FIG. 6 shows a form in which both end portions of the vertical and horizontal ropes 30 and 31 are wound around the anchoring roller 53 of the bearing support anchor 50 attached to the anchor 40 at the outermost end and fixed by the clip 33. The anchor 40 may be fixed directly.
　また横ロープ３１を支圧係留具５０に係留する場合、横ロープ３１をアンカー４０の斜面山側、すなわち係留ローラ５３の上位側に配置することが望ましい。横ロープ３１をこのように配置することで横ロープ３１に作用する斜面谷側へ向けた荷重を、係留ローラ５３を介してアンカー４０へ効率よく伝達できる。 Also, when the horizontal rope 31 is moored to the bearing mooring tool 50, it is desirable to arrange the horizontal rope 31 on the slope mountain side of the anchor 40, that is, on the upper side of the mooring roller 53. By arranging the horizontal rope 31 in this way, a load directed to the slope valley acting on the horizontal rope 31 can be efficiently transmitted to the anchor 40 via the mooring roller 53.
　以上のように、各支圧係留具５０に縦横ロープ３０，３１を挿通するだけの簡単な作業で以て、支圧係留具５０を介してアンカー４０に縦横ロープ３０，３１の交差部を係留して固定することができる。 As described above, the crossing portion of the vertical and horizontal ropes 30 and 31 is moored to the anchor 40 via the support mooring tool 50 by a simple operation of simply inserting the vertical and horizontal ropes 30 and 31 into each of the supporting mooring tools 50. And can be fixed.
　従来の覆網工法は斜面に対してネットとロープを同時に固定していた。
　これに対し本発明では、ネット２０の固定作業を先行して行って斜面１０の安定性を確保してあるので、その後の縦横ロープ３０，３１の後付け作業を安全な環境下で短時間のうちに効率よく行うことができる。
　また支圧係留具５０がネット２０の固定具と縦横ロープ３０，３１の係留具を兼用するので、従来のように二種類の固定具を使い分けする必要がない。 In the conventional netting method, the net and the rope are fixed to the slope at the same time.
On the other hand, in the present invention, the stability of the slope 10 is secured by performing the fixing work of the net 20 in advance, so that the subsequent retrofitting work of the vertical and horizontal ropes 30 and 31 can be performed in a safe environment within a short time. Can be done efficiently.
Further, since the support mooring tool 50 serves as both the fixing tool for the net 20 and the anchoring tool for the vertical and horizontal ropes 30 and 31, there is no need to use two types of fixing tools separately as in the prior art.
＜５＞ロープの設置本数
　本例では交差方向に組み合せて設置する各縦横ロープ３０，３１が単数である場合について説明するが、各縦横ロープ３０，３１を構成するロープの本数は、単数ロープ同士の組み合せ、または複数ロープ同士の組み合せ、または単数ロープと複数ロープの組み合わせの何れかひとつを採用することが可能である。 <5> Number of ropes installed In this example, the case where each of the vertical and horizontal ropes 30 and 31 installed in combination in the crossing direction is described as single, but the number of ropes constituting each vertical and horizontal rope 30 and 31 is between the single ropes. Any one of a combination of a plurality of ropes, a combination of a plurality of ropes, or a combination of a single rope and a plurality of ropes can be employed.
［崩落の抑止作用］
　つぎに斜面１０に展張したネット２０と縦横ロープ３０，３１による斜面１０の崩落抑止作用について説明する。 [Suppression action of collapse]
Next, the collapse preventing action of the slope 10 by the net 20 and the vertical and horizontal ropes 30 and 31 extended on the slope 10 will be described.
＜１＞斜面の拘束支持
　図１において、斜面１０の保護範囲に被覆したネット２０は、支圧係留具５０を介して複数のアンカー４０に固定してあり、ネット２０の表面側に配索した補強用の縦横ロープ３０，３１も支圧係留具５０を介して複数のアンカー４０に固定してある。
　ネット２０および縦横ロープ３０，３１はアンカー４０から反力を得て斜面１０を拘束して浮石１１等の落下を防止する。 <1> Restraint Support of Slope In FIG. 1, the net 20 covered in the protection range of the slope 10 is fixed to the plurality of anchors 40 via the support pressure mooring tool 50 and routed on the surface side of the net 20. The vertical and horizontal ropes 30 and 31 for reinforcement are also fixed to the plurality of anchors 40 via the supporting pressure mooring tools 50.
The net 20 and the vertical and horizontal ropes 30 and 31 obtain a reaction force from the anchor 40 and restrain the slope 10 to prevent the floating stone 11 and the like from falling.
＜２＞荷重の分散支持
　ネット２０と縦横ロープ３０，３１で覆った斜面１０は、上下左右に隣り合う四つの支圧係留具５０で囲んだ範囲を単位として複数に区画化して拘束されている。
　さらに各縦横ロープ３０，３１はその一部に作用した荷重をそのロープの全長に亘って伝達可能なように各支圧係留具５０に係留している。
　したがって、ある特定の区画内で発生した荷重を、特定区画を超えて複数のアンカー４０に分散して支持するとともに、ネット２０を通じて特定の縦横ロープ３０，３１の一部に作用した荷重を、特定の縦横ロープ３０，３１の全長に亘って分散して伝達できるだけでなく、最終的に縦横ロープ３０，３１が係留するすべてのアンカー４０に分散して支持できるから、ネット２０の特定区画を包囲した各アンカー４０の荷重負担が大幅に低減される。
　支圧係留具５０を使用して荷重の伝達範囲を拡張した本発明では、ネットだけでなくロープもアンカーとの固定箇所で荷重伝達が阻止される従来の覆網工法と比べて斜面１０の崩落抑止力が大きくなる。 <2> Dispersion Support of Load The slope 10 covered with the net 20 and the vertical and horizontal ropes 30 and 31 is constrained by being divided into a plurality of units with a range surrounded by four supporting pressure moorings 50 adjacent in the vertical and horizontal directions as a unit. .
Further, the vertical and horizontal ropes 30 and 31 are moored to the supporting pressure mooring tools 50 so that a load acting on a part of the ropes can be transmitted over the entire length of the ropes.
Accordingly, the load generated in a specific section is supported by being distributed to the plurality of anchors 40 beyond the specific section, and the load acting on a part of the specific vertical and horizontal ropes 30 and 31 through the net 20 is specified. The vertical and horizontal ropes 30 and 31 can be distributed and transmitted over the entire length of the rope, and finally the vertical and horizontal ropes 30 and 31 can be distributed and supported by all anchors 40, so that a specific section of the net 20 is surrounded. The load burden of each anchor 40 is greatly reduced.
In the present invention in which the load transmission range is expanded by using the support mooring tool 50, the slope 10 collapses in comparison with the conventional netting method in which not only the net but also the rope is prevented from transmitting the load at the place where the anchor is fixed. Deterrence increases.
＜３＞崩落抑止力の調整
　浮石１１等の大きさや重量が異なるため、斜面１０の場所によって崩落の危険度が異なる。
　従来の覆網工法では使用する金網やロープの強度を最大の浮石１１に合せていたが、本発明では縦横ロープ３０，３１の設置本数と配設方向を適宜選択することで、斜面１０の場所によって異なる崩落の危険度に応じて崩落抑止力を調整することができる。
　図７に崩落抑止力の調整例を示す。
　崩落の危険度が低いエリアでは、縦横ロープ３０，３１の配置本数の削減、配置間隔の拡張、低強度ロープの使用等によって対処し、また崩落の危険度が高いエリアでは、縦横ロープ３０，３１の配置本数の増加、斜ロープ３３の追加配置、ロープ３０，３１，３３の配置間隔の狭小、高強度ロープの使用等によって対処する。 <3> Adjustment of collapse prevention force Since the size and weight of the floating stone 11 and the like are different, the risk of collapse varies depending on the location of the slope 10.
In the conventional netting method, the strength of the wire mesh and rope used is matched to the maximum float stone 11, but in the present invention, the location of the slope 10 can be selected by appropriately selecting the number of the vertical and horizontal ropes 30 and 31 and the arrangement direction. The fall deterrence can be adjusted according to the fall risk that varies depending on the type.
FIG. 7 shows an example of adjusting the collapse prevention force.
In areas where the risk of collapse is low, this is dealt with by reducing the number of vertical and horizontal ropes 30 and 31 arranged, expanding the arrangement interval, using low strength ropes, etc. In areas where the risk of collapse is high, vertical and horizontal ropes 30 and 31 are used. This is dealt with by increasing the number of arrangements, additional arrangement of the sloping rope 33, narrow arrangement intervals of the ropes 30, 31, 33, use of high-strength ropes, and the like.
＜４＞ロープの追加設置
　施工後において、地震等により斜面１０の崩落の危険度が増す場合がある。
　このような場合には、既設のアンカー４０と既設の支圧係留具５０を活用して補強範囲を横切るように任意の区間に亘って追加用のロープを設置することで、斜面１０の全体補強または斜面１０の部分補強を行う。
　本発明では追加用のアンカーや固定具を追加して設ける必要がないので、施工後において斜面１０の補強を迅速かつ経済的に行うことができる。 <4> Additional rope installation After construction, the risk of collapse of the slope 10 may increase due to an earthquake or the like.
In such a case, using the existing anchor 40 and the existing bearing mooring device 50, an additional rope is installed over an arbitrary section so as to cross the reinforcing range, thereby reinforcing the entire slope 10. Alternatively, partial reinforcement of the slope 10 is performed.
In the present invention, there is no need to provide additional anchors or fixtures, so that the slope 10 can be reinforced quickly and economically after construction.
＜５＞ロープの交換
　各縦横ロープ３０，３１の両端部間は複数の支圧係留具５０に係留し、各縦横ロープ３０，３１の両端部は斜面１０に固定してあるだけである。
　したがって、複数の縦横ロープ３０，３１のうちの一部が老朽化したときは、例えば老朽化したロープに沿って新たなロープを配索して固定し、その後に老朽化したロープを抜き取って撤去するだけの簡易な作業で縦横ロープ３０，３１を交換することができる。また老朽化したロープを撤去した後に、複数の支圧係留具５０に跨って新たなロープを配索するようにしてもよい。
　このように縦横ロープ３０，３１の交換を簡単に行えるので、縦横ロープ３０，３１の維持管理が簡単であり、かつ維持管理コストも低減できる。 <5> Exchange of ropes The ends of the vertical and horizontal ropes 30 and 31 are moored by a plurality of supporting moorings 50, and both ends of the vertical and horizontal ropes 30 and 31 are only fixed to the slope 10.
Therefore, when some of the vertical and horizontal ropes 30 and 31 are aged, for example, a new rope is routed and fixed along the aged rope, and then the aged rope is removed and removed. The vertical and horizontal ropes 30 and 31 can be exchanged with a simple operation. Moreover, after removing an aging rope, you may make it route a new rope straddling the some support pressure mooring tools 50. FIG.
Since the vertical and horizontal ropes 30 and 31 can be easily exchanged in this way, the maintenance of the vertical and horizontal ropes 30 and 31 is simple and the maintenance cost can be reduced.
［変形例１］
　以降に実施例の変形例について説明するが、その説明に際し、前記した実施例と同一の部位は同一の符号を付してその詳しい説明を省略する。 [Modification 1]
Hereinafter, modifications of the embodiment will be described. In the description, the same parts as those in the above-described embodiment will be denoted by the same reference numerals, and detailed description thereof will be omitted.
　先の実施例ではネット２０の表面に縦横方向、または斜め方向へ向けて複数のロープ３０，３１，３３を配置して付設する形態について説明したが、複数のロープを斜め方向に交差させて配置してもよい。
　要は複数のロープを交差方向に組み合せてネット２０の表面に付設してあればよい。
　また、縦横ロープ３０，３１の何れか一方だけを設置する場合もある。 In the previous embodiment, the description has been given of the form in which the plurality of ropes 30, 31, 33 are arranged and attached to the surface of the net 20 in the vertical and horizontal directions or in the oblique direction. However, the plurality of ropes are arranged so as to intersect with each other in the oblique direction. May be.
In short, a plurality of ropes may be attached to the surface of the net 20 in a crossing direction.
In addition, only one of the vertical and horizontal ropes 30 and 31 may be installed.
［変形例２］
　図８，９にネット２０に代えて縦ロープ３０付きのネット２０Ａを使用した変形例を示す。 [Modification 2]
8 and 9 show a modification in which a net 20A with a vertical rope 30 is used in place of the net 20. FIG.
＜１＞縦ロープ付きのネット
　図９に縦ロープ３０付きのネット２０Ａ，２０Ａの側縁を突き合せた平面図を参照して説明すると、ネット２０Ａは高強度亀甲金網等のネット本体２１と、該ネット本体２１の左右両側縁に、該側縁の全長に亘って予め取り付けた縦ロープ３０とにより構成する。
　本例ではネット本体２１を構成する側縁部の線材を縦ロープ３０に巻き付けて連結した形態を示すが、別途の連結材を用いて連結してもよく、ネット本体２１と縦ロープ３０の連結手段は特に制約がない。 <1> Net with Vertical Rope Referring to FIG. 9 which is a plan view in which the side edges of the nets 20A and 20A with the vertical rope 30 are matched, the net 20A includes a net body 21 such as a high-strength turtle shell metal net, It is comprised by the vertical rope 30 previously attached to the right-and-left both-sides edge of this net | network main body 21 over the full length of this side edge.
In this example, the wire of the side edge part which comprises the net main body 21 is wound around the vertical rope 30 and connected, but may be connected using a separate connecting material, and the net main body 21 and the vertical rope 30 may be connected. There are no particular restrictions on the means.
＜２＞施工方法
＜２．１＞アンカー工
　浮石等が点在する斜面１０に複数のアンカー４０を設ける。 <2> Construction method <2.1> Anchor work A plurality of anchors 40 are provided on the slope 10 on which rocks or the like are scattered.
＜２．２＞ネットの被覆工
　縦ロープ３０付きのネット２０Ａを縦向きにして斜面１０の保護範囲に順次並べて敷設し、隣り合う各縦ロープ３０付きのネット２０Ａの側縁の突合せ箇所を巻付けワイヤ等の連結材２２で連結してネット２０Ａに連続性を付与する。 <2.2> Net coating work The nets 20A with the vertical ropes 30 are laid in the vertical direction in the protection range of the slope 10, and the butt portions of the side edges of the adjacent nets 20A with the vertical ropes 30 are wound. It is connected by a connecting material 22 such as an attachment wire to give continuity to the net 20A.
＜２．３＞ネットの固定工
　ネット２０を貫通して突出したアンカー４０の頭部に支圧係留具５０を設置して、ネット２０の複数箇所を固定して斜面１０を拘束する。
　ネット２０Ａの側縁に突出したアンカー４０の頭部に支圧係留具５０を設置してネット２０Ａの複数箇所を斜面１０に固定する。
　図９に拡大して示すように、隣り合う縦ロープ３０付きのネット２０Ａの側縁の突合せ箇所では、隣り合う縦ロープ３０，３０に跨って支圧係留具５０を固定する。
　縦ロープ３０付きのネット２０Ａを斜面１０に固定することで、ネット２０Ａの設置工と縦ロープ３０の設置工を同時に行う。 <2.3> Net Fixing Work A supporting mooring tool 50 is installed on the head of the anchor 40 that protrudes through the net 20, and a plurality of locations of the net 20 are fixed to restrain the slope 10.
The support mooring tool 50 is installed on the head of the anchor 40 protruding from the side edge of the net 20A, and a plurality of locations of the net 20A are fixed to the slope 10.
As shown in an enlarged view in FIG. 9, the supporting mooring tool 50 is fixed across the adjacent vertical ropes 30 and 30 at the abutting portion of the side edge of the net 20 </ b> A with the adjacent vertical ropes 30.
By fixing the net 20A with the vertical rope 30 to the slope 10, the installation work of the net 20A and the installation work of the vertical rope 30 are performed simultaneously.
＜２．４＞ロープの後付け工
　図８に示すように、アンカー４０の頭部に設置した各支圧係留具５０に係留しながらネット２０Ａの表面に横ロープ３１を配索するとともに、各横ロープ３１の端部を先の実施例と同様に固定して、ネット２０Ａの表面に横ロープ３１を後付けする。
　本例では縦ロープ３０付きのネット２０Ａを使用することで、ロープの後付け作業が横ロープ３１のみでよいため、縦横ロープ３０，３１を後付けする場合と比べてロープの後付け工の施工性がさらによくなる。 <2.4> Retrofitting of Rope As shown in FIG. 8, the horizontal rope 31 is routed on the surface of the net 20 </ b> A while being moored to each supporting mooring device 50 installed on the head of the anchor 40. The end of the rope 31 is fixed in the same manner as in the previous embodiment, and the horizontal rope 31 is retrofitted to the surface of the net 20A.
In this example, by using the net 20A with the vertical rope 30, the retrofitting work of the rope may be only the horizontal rope 31. Therefore, the workability of the retrofitting work of the rope is further improved as compared with the case where the vertical and horizontal ropes 30, 31 are retrofitted. Get better.
＜３＞崩落の抑止作用
　ネット２０および縦横ロープ３０，３１の協働による斜面１０の拘束支持作用、ロープの全長に亘って荷重を伝達可能なように横ロープ３１の一部を支圧係留具５０に係留させたことによる荷重の分散支持作用、および横ロープ３１の設置本数と配設方向を適宜選択することで、斜面１０の場所によって異なる崩落の危険度に応じて崩落抑止力を調整する崩落抑止力の調整作用は、既述した実施例と同様であるので説明を省略する。 <3> Collapsing prevention action A restraining and supporting action of the slope 10 by the cooperation of the net 20 and the vertical and horizontal ropes 30 and 31, a part of the horizontal rope 31 for supporting and anchoring the load so that the load can be transmitted over the entire length of the rope. 50 is adjusted according to the risk of collapsing depending on the location of the slope 10 by appropriately selecting the load dispersion supporting action by mooring to 50 and the number and arrangement direction of the lateral ropes 31 as appropriate. The adjustment operation of the collapse deterring force is the same as that of the above-described embodiment, and thus the description thereof is omitted.
１０・・・・・斜面
２０・・・・・ネット
２０Ａ・・・・縦ロープ付きのネット
２１・・・・・ネット本体
２２・・・・・連結材
３０・・・・・縦ロープ
３１・・・・・横ロープ
３２・・・・・連結材
４０・・・・・アンカー
４１・・・・・ナット
５０・・・・・支圧係留具
５１・・・・・下位の拘束板
５２・・・・・上位の拘束板
５３・・・・・係留ローラ
５４・・・・・規制ピン
５５・・・・・挿通空間 10 ... Slope 20 ... Net 20A ... Net 21 with vertical rope ... Net body 22 ... Connecting material 30 ... Vertical rope 31 ··· Horizontal rope 32 ··· Connecting material 40 · · · Anchor 41 · · · Nut 50 · · · Bearing mooring tool 51 · · · Lower restraint plate 52 · .... Upper restraint plate 53 ... Mooring roller 54 ... Restriction pin 55 ... Insertion space

Claims (11)

  1. 　斜面の保護範囲に亘って覆網したネットと、該ネットに交差方向に組み合せて付設する複数のロープとを、斜面に設けたアンカーに取り付けて斜面の表面を拘束する斜面の保護構造であって、
    　前記ネットの支圧固定機能と、前記複数のロープの係留機能を併有する支圧係留具を使用し、
    　前記支圧係留具が中央にアンカー頭部を挿通可能な挿通孔を有する一対の拘束板と、該拘束板の中央部間に設置し、その中心にアンカー頭部を挿通可能な挿通孔を形成した係留ローラと、前記拘束板の周縁部間に架設した規制ピンとを具備し、前記係留ローラと規制ピンとの間にロープを挿通可能な挿通空間を形成しており、
    　前記アンカーの頭部に設置した支圧係留具によって斜面を覆網したネットを固定し、
    　前記ネットの固定に使用した前記複数の支圧係留具の間に前記ロープの両端部間を係留して配索するとともに、前記ロープの両端部を斜面に固定し、
    　前記ネットを通じてロープの一部に作用した荷重を当該ロープの全長に亘って伝達しつつ、当該ロープに伝達した荷重を前記支圧係留具を介して複数のアンカーに分散して支持させたことを特徴とする斜面の保護構造。     A slope protection structure for restraining the surface of the slope by attaching a net covered over the protection range of the slope and a plurality of ropes attached to the net in a crossing direction to an anchor provided on the slope. ,
    Using the support pressure mooring tool having both the support pressure fixing function of the net and the mooring function of the plurality of ropes,
    A pair of restraining plates having an insertion hole through which the anchor head can be inserted at the center of the support mooring tool, and an insertion hole through which the anchor head can be inserted are formed at the center of the restraint plate. An anchoring roller and a restricting pin installed between the peripheral edges of the restraining plate, forming an insertion space in which a rope can be inserted between the anchoring roller and the restricting pin,
    Fix the net that covers the slope with the support mooring installed on the head of the anchor,
    While mooring and routing between both ends of the rope between the plurality of support and mooring fixtures used for fixing the net, and fixing both ends of the rope to the slope,
    While transmitting the load acting on a part of the rope through the net over the entire length of the rope, the load transmitted to the rope is dispersed and supported by a plurality of anchors via the support mooring device. Features a slope protection structure.
  2. 　請求項１において、前記交差方向に組み合せたロープが単数ロープ同士の組み合せ、複数ロープ同士の組み合せ、または単数ロープと複数ロープの組み合わせの何れかひとつであることを特徴とする斜面の保護構造。 The slope protection structure according to claim 1, wherein the rope combined in the intersecting direction is one of a combination of single ropes, a combination of multiple ropes, or a combination of a single rope and multiple ropes.
  3. 　請求項２において、前記交差方向に組み合せたロープが、斜面の縦方向に配置した縦ロープと、斜面の横方向に配置した横ロープの組み合せであることを特徴とする斜面の保護構造。 3. The slope protection structure according to claim 2, wherein the rope combined in the intersecting direction is a combination of a vertical rope arranged in the vertical direction of the slope and a horizontal rope arranged in the horizontal direction of the slope.
  4. 　請求項２において、前記交差方向に組み合せたロープが、斜面の縦方向に配置した縦ロープと、斜面の横方向に配置した横ロープと、斜面の斜め方向に配置した斜ロープとの組み合せであることを特徴とする斜面の保護構造。 In Claim 2, the rope combined in the intersecting direction is a combination of a vertical rope arranged in the vertical direction of the slope, a horizontal rope arranged in the horizontal direction of the slope, and a diagonal rope arranged in the diagonal direction of the slope. Slope protection structure characterized by that.
  5. 　請求項２において、前記交差方向に組み合せたロープが斜面の縦横方向に配置したロープであって、縦方向のロープが予め前記ネットの左右の両側縁に取り付けてあることを特徴とする斜面の保護構造。 The slope protection according to claim 2, wherein the rope combined in the intersecting direction is a rope arranged in the vertical and horizontal directions of the slope, and the vertical rope is attached in advance to the left and right side edges of the net. Construction.
  6. 　斜面の複数箇所にアンカーを設けた後に斜面をネットで覆い、アンカーに反力を得て斜面に覆網したネットを斜面に固定し、前記ネットに交差方向に組み合せた複数のロープを付設して斜面を保護する方法であって、
    　前記ネットの支圧固定機能と、前記複数のロープの係留機能を併有する支圧係留具を使用し、
    　前記支圧係留具が中央にアンカー頭部を挿通可能な挿通孔を有する一対の拘束板と、該拘束板の中央部間に設置し、その中心にアンカー頭部を挿通可能な挿通孔を形成した係留ローラと、前記拘束板の周縁部間に架設した規制ピンとを具備し、前記係留ローラと規制ピンとの間にロープを挿通可能な挿通空間を形成しており、
    　アンカーの頭部に取り付けた前記支圧係留具によって斜面に覆網したネットを斜面に固定するネットの覆網工と、
    　前記ネットの固定に使用した前記複数の支圧係留具の間に前記ロープの両端部間を係留して配索するとともに、前記ロープの両端部を斜面に固定してネットに交差方向に組み合せてロープを付設するロープの後付け付設工と、を具備し、
    　前記アンカーから反力を得て固定したネットと、ロープの一部に作用した荷重を当該ロープの全長に亘って伝達可能な複数のロープとにより斜面の表面を拘束することを特徴とする、
    　斜面の保護方法。     After providing anchors at multiple locations on the slope, cover the slope with a net, obtain a reaction force on the anchor and fix the net covered with the slope to the slope, and attach a plurality of ropes combined with the net in the crossing direction. A method of protecting a slope,
    Using the support pressure mooring tool having both the support pressure fixing function of the net and the mooring function of the plurality of ropes,
    A pair of restraining plates having an insertion hole through which the anchor head can be inserted at the center of the support mooring tool, and an insertion hole through which the anchor head can be inserted are formed at the center of the restraint plate. An anchoring roller and a restricting pin installed between the peripheral edges of the restraining plate, forming an insertion space in which a rope can be inserted between the anchoring roller and the restricting pin,
    A net covering work for fixing a net covered on the slope by the bearing mooring device attached to the head of the anchor;
    The two ends of the rope are moored and routed between the plurality of supporting moorings used for fixing the net, and both ends of the rope are fixed to the slope and combined with the net in the crossing direction. A rope retrofitting work for attaching the rope;
    The surface of the slope is constrained by a net fixed by obtaining a reaction force from the anchor, and a plurality of ropes capable of transmitting a load acting on a part of the rope over the entire length of the rope,
    How to protect slopes.
  7. 　請求項６において、前記複数の支圧係留具の間に追加用のロープの両端部間を係留して配索するとともに、前記追加用のロープの両端部を斜面に固定するロープの追加後付け工をさらに含むことを特徴とする斜面の保護方法。 The additional retrofitting of a rope according to claim 6, wherein both ends of the additional rope are moored and wired between the plurality of support moorings, and both ends of the additional rope are fixed to the slope. A method for protecting a slope, further comprising:
  8. 　請求項６または７において、前記交差方向に組み合せたロープが単数ロープ同士の組み合せ、複数ロープ同士の組み合せ、または単数ロープと複数ロープの組み合わせの何れかひとつであることを特徴とする斜面の保護構造。 The slope protection structure according to claim 6 or 7, wherein the rope combined in the crossing direction is one of a combination of single ropes, a combination of multiple ropes, or a combination of a single rope and multiple ropes. .
  9. 　請求項８において、前記交差方向に組み合せたロープが、斜面の縦方向に配置した縦ロープと、斜面の横方向に配置した横ロープの組み合せであることを特徴とする斜面の保護方法。 9. The slope protecting method according to claim 8, wherein the rope combined in the intersecting direction is a combination of a vertical rope arranged in the vertical direction of the slope and a horizontal rope arranged in the horizontal direction of the slope.
  10. 　請求項８において、前記交差方向に組み合せたロープが、斜面の縦方向に配置した縦ロープと、斜面の横方向に配置した横ロープと、斜面の斜め方向に配置した斜ロープとの組み合せであることを特徴とする斜面の保護方法。 The rope combined in the crossing direction according to claim 8 is a combination of a vertical rope arranged in the vertical direction of the slope, a horizontal rope arranged in the horizontal direction of the slope, and a diagonal rope arranged in the diagonal direction of the slope. A method for protecting a slope characterized by the above.
  11. 　請求項８において、前記交差方向に組み合せたロープが斜面の縦横方向に配置したロープであって、縦方向のロープが予め前記ネットの左右の両側縁に取り付けてあり、縦方向のロープ付きのネットを斜面に固定した後に、横方向のロープをネットに後付することを特徴とする斜面の保護方法。 9. The rope according to claim 8, wherein the rope combined in the intersecting direction is a rope arranged in the vertical and horizontal directions of the slope, and the vertical rope is attached in advance to the left and right side edges of the net. A method of protecting a slope, characterized by attaching a horizontal rope to the net after fixing the to the slope.
PCT/JP2014/000363 2013-02-12 2014-01-24 Slope protecting structure and protecting method WO2014125773A1 (en)

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