JP2007039974A - Slope protection works using reinforcements - Google Patents

Slope protection works using reinforcements Download PDF

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JP2007039974A
JP2007039974A JP2005225282A JP2005225282A JP2007039974A JP 2007039974 A JP2007039974 A JP 2007039974A JP 2005225282 A JP2005225282 A JP 2005225282A JP 2005225282 A JP2005225282 A JP 2005225282A JP 2007039974 A JP2007039974 A JP 2007039974A
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slope
anchor
tension member
head
anchor tension
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JP4157548B2 (en
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Hirotake Nohara
広猛 野原
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KYOWA DOKEN KK
MANJO GIJUTSU KAIHATSU KK
SHIMONOSEKI RYOJU ENGINEERING
SHIMONOSEKI RYOJU ENGINEERING KK
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KYOWA DOKEN KK
MANJO GIJUTSU KAIHATSU KK
SHIMONOSEKI RYOJU ENGINEERING
SHIMONOSEKI RYOJU ENGINEERING KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide slope protection works using reinforcements, which dispense with projection of component members from a slope after execution of construction, make the component members invisible in an early stage after vegetation so as to exhibit excellent landscape, allow persons to walk safely, contribute to reduction of a parts count and a workload, and is excellent in workability and cost efficiency. <P>SOLUTION: In construction of the slope protection works, a plurality of underground anchors 1 are driven into the ground G of the slope N at predetermined intervals such that a head 2a of each anchor tension member 2 is not protruded from the slope N, and a vegetative mat 4 and a protective net 5 are laid on the slope N where the anchors are driven, in a manner being superposed on each other in this order from below. Then while a cylinder body 10a of each retaining plate 10 is embedded in the ground, a hole of the retaining plate 10 is fitted onto the head 2a of the anchor tension member 2, and the vegetative mat 4 and the protective net 5 are pressed to the slope N, followed by fastening the retaining plate 10 and the head 2a of the anchor tension member 2 to each other in the cylinder body 10a, to thereby fix the vegetative mat 4 and the protective net 5 to the slope N. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、法面の表土の崩落と流出を防止して植生を良好にする補強筋法面工に関する。   TECHNICAL FIELD The present invention relates to a reinforcing bar slope work that prevents collapse and outflow of a sloped slope and improves vegetation.

従来の補強筋法面工としては特許文献１に示されるものが提案されている。この技術は、法面地盤に地中アンカーを所定間隔で打設して法面からアンカー引張部材の頭部を突出させ、打設した法面に植生シートと保護ネットを重ねて敷設し、フレーム状の連接部材をアンカー引張部材間に縦横に配置するとともに、連接部材をアンカー引張部材の位置で連結した状態にしてアンカー引張部材の締具で連接部材を締着し、アンカー引張部材で締着した縦横の連接部材で保護ネット及び植生シートを法面に固定して植生させることを特徴としている。   As a conventional reinforcing bar slope work, the one shown in Patent Document 1 has been proposed. In this technology, underground anchors are driven at a predetermined interval on the slope ground, the head of the anchor tension member protrudes from the slope, and a vegetation sheet and a protective net are laid on the slope and placed on the frame. The connecting members are arranged vertically and horizontally between the anchor tension members, and the connecting members are connected at the anchor tension member positions, and the connecting members are fastened with the anchor tension member fasteners, and tightened with the anchor tension members. It is characterized in that the protective net and the vegetation sheet are fixed to the slope with the vertical and horizontal connecting members.

この技術によれば、安価で且つ短い工期で容易に施工でき、植生シートと保護ネットで表土の崩落と流出を防止して植生を良好にすることができる。ところで、前記技術では多数の重い部材が必要で作業に労力を伴いコストもかかるものであった。また、地中アンカーの頭部を締着用として法面から突出させるように打設するから、施工後に法面から地中アンカーの頭部や連接部材が突出した状態となり、植生後も部材が見えて景観を悪化させるとともに歩行時も危険であった。
特許第３４９９４８８号公報 According to this technique, it is inexpensive and can be easily constructed in a short construction period, and the vegetation sheet and the protective net can prevent the collapse and outflow of the topsoil, thereby improving the vegetation. By the way, in the said technique, many heavy members were required and the work was labor-intensive and costly. In addition, since the head of the underground anchor is placed so as to protrude from the slope as tightening, the head of the underground anchor and the connecting member protrude from the slope after construction, and the member can be seen even after vegetation. It worsened the scenery and was dangerous when walking.
Japanese Patent No. 3499488

本発明が解決しようとする課題は、従来のこれらの問題点を解消し、少ない部材で作業に伴う労力を低減できる施工性及び経済性に優れる補強筋法面工を提供することにある。第２の課題は施工後に法面から部材が突出しないようにし、植生後に部材を早期に見えなくして優れた景観にできるとともに歩行時も安全なものとする補強筋法面工を提供することにある。   The problem to be solved by the present invention is to provide a reinforcing bar slope work which is excellent in workability and economy, which can solve these conventional problems and can reduce the labor involved in the work with a small number of members. The second problem is to provide a reinforcing bar slope that prevents the member from protruding from the slope after construction, and makes the member invisible at an early stage after vegetation, making it an excellent landscape and making it safe during walking. is there.

かかる課題を解決した本発明の構成は、
１） 法面地盤に複数の地中アンカーを所定間隔おいて打設して法面からアンカー引張部材の頭部を突出させ、打設した法面に植生マットを敷設し、植生マットの上面に保護ネットを重ねて敷設し、板材の中央部を穿孔して押えプレートとし、同押えプレートの孔を地中アンカーのアンカー引張部材の頭部に挿入して植生マットと保護ネットを法面に押し付け、押えプレートとアンカー引張部材の頭部とを締具により締着し、植生マットと保護ネットを法面に固定して保護・緑化できるようにしたことを特徴とする、補強筋法面工
２） 地中アンカーの打設が、法面地盤を掘削した削孔に固化材を注入し、同固化材の硬化前にアンカー引張部材をその頭部が露出するようにして削孔に挿入し、固化材を硬化させてアンカー引張部材を固定するようにしたものである、前記１）記載の補強筋法面工
３） 法面地盤に複数の地中アンカーをそのアンカー引張部材の頭部が法面から突出しないように所定間隔おいて打設し、打設した法面に植生マットを敷設し、植生マットの上面に保護ネットを重ねて敷設し、上方が開放され且つ底部が穿孔された筒体の開放縁部に板状の押え片を形成して押えプレートとし、同押えプレートの筒体を地中に埋入しながら筒体の孔をアンカー引張部材の頭部に挿入して植生マットと保護ネットを押え片で法面に押し付け、押えプレートとアンカー引張部材の頭部とを押えプレートの筒体内で締具により締着して植生マットと保護ネットを法面に固定し、アンカー引張部材の頭部を法面から突出させないようにして法面を保護・緑化できるようにしたことを特徴とする、補強筋法面工
４） 締着した押えプレートの筒体内に固化材を充填して被覆し、押えプレートの上面を平坦に形成できるようにした、前記３）記載の補強筋法面工
５） 地中アンカーの打設が、法面地盤を掘削した削孔にアンカー引張部材の頭部が露出できる量の固化材を注入し、同固化材の硬化前にアンカー引張部材をその頭部が露出するようにして削孔に挿入し、固化材を硬化させてアンカー引張部材を固定するようにしたものである、前記３）又は４）いずれか記載の補強筋法面工
６） 地中アンカーの打設が、法面地盤にアンカー引張部材を直接圧入し、地盤との摩擦力でアンカー引張部材を固定するようにしたものである、前記１）〜５）いずれか記載の補強筋法面工
７） 押えプレートに小孔を複数形成し、小孔を通じて植物が押えプレートの上方に植生できるようにした、前記１）〜６）いずれか記載の補強筋法面工
にある。 The configuration of the present invention that solves this problem is as follows.
1) A plurality of underground anchors are placed on the slope ground at predetermined intervals, the head of the anchor tension member protrudes from the slope, and a vegetation mat is laid on the slope, and the vegetation mat is placed on the top surface of the vegetation mat. Lay the protective nets on top of each other, drill the center part of the plate material into a presser plate, insert the hole in the presser plate into the head of the anchor tension member of the underground anchor, and press the vegetation mat and the protective net against the slope Reinforcing bar slope 2 characterized in that the presser plate and the head of the anchor tension member are fastened with a fastener, and the vegetation mat and the protective net are fixed to the slope so that they can be protected and greened. ) The placement of underground anchors injects solidified material into the drilling hole excavated on the slope ground, and inserts the anchor tension member into the drilling hole so that its head is exposed before hardening of the solidified material, Harden the solidification material and fix the anchor tension member 3) Reinforcement bar slope as described in 1) 3) A plurality of underground anchors are placed on the slope ground at predetermined intervals so that the heads of the anchor tension members do not protrude from the slope. A vegetation mat is laid on the slope, and a protective net is laid on the top of the vegetation mat, and a plate-shaped presser piece is formed on the open edge of the cylinder whose top is open and whose bottom is perforated. While holding the cylinder of the press plate into the ground, insert the hole in the cylinder into the head of the anchor tension member and press the vegetation mat and protective net against the slope with the presser piece. Fix the vegetation mat and the protective net to the slope by fastening the plate and the head of the anchor tension member with the clamp in the cylinder of the presser plate so that the head of the anchor tension member does not protrude from the slope. Features that can protect and green the slope Reinforcing bar slope work 4) Reinforcing bar slope work as described in 3) above, in which the cylinder of the clamped presser plate is filled with a solidified material so that the upper surface of the presser plate can be formed flat. 5) When placing the underground anchor, inject a solidifying material in an amount that allows the head of the anchor tension member to be exposed in the drilling hole excavated in the slope ground. It is inserted into the drilling hole so as to be exposed, the solidified material is hardened, and the anchor tension member is fixed. The reinforcing bar method according to any one of 1) to 5) above, wherein the anchor is formed by directly pressing the anchor tension member into the slope ground and fixing the anchor tension member by frictional force with the ground. Surface work 7) A plurality of small holes are formed in the presser plate, and plants are formed through the small holes. And to allow vegetation above the pressing plate, wherein 1) to 6) in Reinforcement slopes Engineering of any one.

本発明によれば、従来と比較して重量を有する多数の連接部材を必要としないから労力を低減でき、作業性が良好で経済的に実施できる。また、地中アンカーを法面から突出しないように打設し、押えプレートの筒体を地中に埋入させて締着させるものは、法面に突起物が無くほぼ平坦に施工でき、植生後は早期に部材が隠れて見えなくなるとともに歩行時も安全なものとなる。   According to the present invention, since a large number of connecting members having a weight as compared with the prior art are not required, labor can be reduced, workability can be improved, and economic implementation can be achieved. In addition, if the underground anchor is placed so as not to protrude from the slope, and the cylinder of the presser plate is embedded in the ground and tightened, it can be constructed almost flat with no projections on the slope, After that, the member is hidden at an early stage and cannot be seen, and it is safe when walking.

本発明の地中アンカーの打設は、削孔にモルタル等の固化材を注入してアンカー引張部材を挿入して固化材を硬化させる方法や、アンカー引張部材を直接地中へ打撃圧入する方法によるものがあり、地盤の土質等に応じて選ばれる。押えプレートは金属やその他アンカーとしての必要強度を有する材料で構成され、必要に応じて任意の色に着色して目立たなくさせることもできる。植生マットとしては、植生布，自然の植生材，芝，種子入りの不織布等がある。保護ネットとしては、金網，硬質なプラスチックネットなどがあり、できるだけ目の粗いものを用いて植生を阻害しないようにする。以下、本発明の各実施例を図面に基づいて具体的に説明する。   The placement of the underground anchor of the present invention includes a method of injecting a solidified material such as mortar into the drilling hole and inserting the anchor tensile member to cure the solidified material, or a method of hitting and pressing the anchor tensile member directly into the ground Depending on the soil quality of the ground. The presser plate is made of metal or other material having the necessary strength as an anchor, and can be colored in an arbitrary color as needed to make it less noticeable. As the vegetation mat, there are vegetation cloth, natural vegetation material, grass, non-woven fabric with seeds, and the like. Examples of protective nets include wire nets and hard plastic nets, and use as coarse a mesh as possible so as not to disturb vegetation. Embodiments of the present invention will be specifically described below with reference to the drawings.

図１〜６に示す実施例１は、崩壊した法面を地中アンカーで安定させるとともに全面に植物を植生させ、土壌侵食を抑えながら景観に優れる緑化法面を形成する例である。図１は実施例１の施工後の法面の断面図、図２は実施例１の押えプレートの斜視図、図３，４は実施例１の施工工程の説明図、図５は実施例１の押えプレートの締着状態を示す拡大断面図、図６は実施例の施工後の法面の平面図である。   Examples 1 to 6 shown in FIGS. 1 to 6 are examples in which a collapsed slope is stabilized by underground anchors and plants are vegetated on the entire surface to form a greening slope that is excellent in landscape while suppressing soil erosion. FIG. 1 is a cross-sectional view of a slope after construction of Example 1, FIG. 2 is a perspective view of a presser plate of Example 1, FIGS. 3 and 4 are explanatory diagrams of construction processes of Example 1, and FIG. FIG. 6 is a plan view of the slope after the construction of the embodiment.

図中、１は地中アンカー、２はアンカー引張部材、２ａは頭部、３は削孔、４は植生マット、５は保護ネット、６は押えプレート、６ａはアンカー孔、６ｂは小孔、７はワッシャー、８はナット、８ａは保護キャップ、９はバックホウ、９ａはオーガ、Ｇは地盤、Ｍはモルタル、Ｎは法面である。   In the figure, 1 is an underground anchor, 2 is an anchor tension member, 2a is a head, 3 is a drilling hole, 4 is a vegetation mat, 5 is a protective net, 6 is a presser plate, 6a is an anchor hole, 6b is a small hole, 7 is a washer, 8 is a nut, 8a is a protective cap, 9 is a backhoe, 9a is an auger, G is ground, M is mortar, and N is a slope.

実施例１では、まず崩壊した法面Ｎをショベル等の重機で平坦に整形し、図３（ａ）に示すようにバックホウ９に取り付けたオーガ９ａで法面Ｎを直角（所定角度をつける場合もある）に掘削して深さ２〜１６ｍ程度（実施例１では３ｍ）の削孔３を１．４ｍ等変間隔に複数形成する。   In the first embodiment, the collapsed slope N is first flattened with a heavy machine such as an excavator, and the slope N is formed at a right angle (with a predetermined angle) by an auger 9a attached to the backhoe 9 as shown in FIG. A plurality of holes 3 having a depth of about 2 to 16 m (3 m in Example 1) are formed at regular intervals of 1.4 m.

次に、図３（ｂ）に示すように削孔３にモルタルＭを注入し、モルタルＭが硬化する前に長さ２〜１６ｍ程度（本実施例では３ｍ）の棒鋼からなるアンカー引張部材２をその頭部２ａが法面Ｎから若干突出するように挿入し、図４（ａ）に示すように種子入りの不織布からなる植生マット４を法面Ｎに敷設し、１０ｃｍ間隔に格子状に形成された金属製の保護ネット５を植生マット４の上面に重ねて敷設する。   Next, as shown in FIG. 3 (b), mortar M is injected into the hole 3, and the anchor tension member 2 made of steel bar having a length of about 2 to 16 m (3 m in this embodiment) before the mortar M is cured. Is inserted so that the head 2a slightly protrudes from the slope N, and a vegetation mat 4 made of non-woven fabric with seeds is laid on the slope N as shown in FIG. The formed metal protective net 5 is laid on the upper surface of the vegetation mat 4.

次に、モルタルＭが硬化すると、図４（ｂ）に示すようにアンカー引張部材２に押えプレート６を取り付ける。押えプレート６は、図２に示すように中央部に３０ｍｍのアンカー孔６ａが形成された厚さ６ｍｍ，縦横が３００ｍｍの鋼板からなり、アンカー孔６ａの周囲に複数の小孔６ｂを形成している。   Next, when the mortar M is cured, the presser plate 6 is attached to the anchor tension member 2 as shown in FIG. As shown in FIG. 2, the presser plate 6 is made of a steel plate having a thickness of 6 mm in which a 30 mm anchor hole 6a is formed in the center and 300 mm in length and width, and a plurality of small holes 6b are formed around the anchor hole 6a. Yes.

この押えプレート６のアンカー孔６ａを図５に示すようにアンカー引張部材２の頭部２ａに挿入して植生マット４と保護ネット５を法面Ｎに押え付け、露出したアンカー引張部材２の頭部２ａにワッシャー７とナット８を螺挿してラチェット等で強く締め付け、植生マット４と保護ネット５を法面Ｎに固定する地中アンカー１を構成する。その後、モルタルＭを詰めた保護キャップ８ａでアンカー引張部材２の頭部２ａとナット８を被せて内部をモルタルＭで充填し、モルタルＭを硬化させて図１，６に示す法面Ｎに仕上げる。   As shown in FIG. 5, the anchor hole 6a of the presser plate 6 is inserted into the head 2a of the anchor tension member 2, and the vegetation mat 4 and the protective net 5 are pressed against the slope N, and the head of the exposed anchor tension member 2 is pressed. A washer 7 and a nut 8 are screwed into the portion 2a and tightened with a ratchet or the like to form a ground anchor 1 that fixes the vegetation mat 4 and the protective net 5 to the slope N. Thereafter, the head 2a of the anchor tension member 2 and the nut 8 are covered with the protective cap 8a filled with the mortar M, and the inside is filled with the mortar M, and the mortar M is hardened to finish the slope N shown in FIGS. .

このように、実施例１では従来のように重量を有する多数本の連接部材を用いず、小型の鋼板からなる押えプレート６で植生ネット４と保護ネット５を押え付けるようにしたから、従来と比較して労力を低減でき、作業性が良好で経済的に実施できるようになった。また、押えプレート６の小孔６ｂからも植生して、ほぼ完全に部材を隠して緑化できた。   In this way, in Example 1, the vegetation net 4 and the protective net 5 are pressed by the presser plate 6 made of a small steel plate without using a large number of connecting members having a weight as in the prior art. Compared with this, labor can be reduced, workability is good, and it can be implemented economically. In addition, it was vegetated from the small holes 6b of the presser plate 6 so that the member was almost completely hidden and greened.

図７〜１３に示す実施例２は、実施例１の平型の押えプレートに代えて凹所を備えた押えプレートを用い、突起物を無くして平坦な法面に施工する例である。図７は実施例２の施工後の法面の断面図、図８は実施例２の押えプレートの斜視図、図９は図８のＡ−Ａ断面図、図１０，１１は実施例２の施工工程の説明図、図１２は実施例２の押えプレートの締着状態を示す拡大断面図、図１３は実施例２の施工後の法面の平面図である。図中、１０は押えプレート、１０ａは筒体、１０ｂはアンカー孔、１０ｃは押え片、１０ｄは小孔である。   The second embodiment shown in FIGS. 7 to 13 is an example in which a presser plate having a recess is used in place of the flat presser plate of the first embodiment, and the projections are eliminated and a flat slope is applied. 7 is a cross-sectional view of the slope after construction of Example 2, FIG. 8 is a perspective view of the presser plate of Example 2, FIG. 9 is a cross-sectional view taken along line AA of FIG. 8, and FIGS. FIG. 12 is an enlarged cross-sectional view showing the fastening state of the presser plate of the second embodiment, and FIG. 13 is a plan view of the slope after the construction of the second embodiment. In the figure, 10 is a presser plate, 10a is a cylinder, 10b is an anchor hole, 10c is a presser piece, and 10d is a small hole.

実施例２では、まず崩壊した法面Ｎをショベル等の重機で平坦に整形し、図１０（ａ）に示すようにバックホウ９に取り付けたオーガ９ａで法面Ｎを直角（所定の角度をつける場合もある）に掘削して深さ２〜１６ｍ程度（実施例２では３ｍ）の削孔３を１．４ｍ等変間隔に複数形成する。   In Embodiment 2, the collapsed slope N is first flattened with a heavy machine such as an excavator, and as shown in FIG. 10A, the slope N is set at a right angle (with a predetermined angle) by an auger 9a attached to the backhoe 9. In some cases, a plurality of holes 3 having a depth of about 2 to 16 m (3 m in Example 2) are formed at regular intervals of 1.4 m.

次に、図１０（ｂ）に示すように削孔３に法面Ｎからおよそ１０ｃｍ残す量のモルタルＭを注入し、図１２（ａ）に示すようにモルタルＭが硬化する前に長さ２〜１６ｍ程度（本実施例では３ｍ）の棒鋼からなるアンカー引張部材２をその頭部２ａが法面Ｎから突出しないように挿入して頭部２ａをモルタルＭから露出し、図１１（ａ）に示すように種子入りの不織布からなる植生マット４を法面Ｎに敷設し、１０ｃｍ間隔に格子状に形成された金属製の保護ネット５を植生マット４の上面に重ねて敷設する。   Next, as shown in FIG. 10 (b), an amount of mortar M that is left about 10 cm from the slope N is injected into the drilling hole 3, and the length 2 before the mortar M is cured as shown in FIG. 12 (a). The anchor tension member 2 made of steel bar of about ˜16 m (3 m in this embodiment) is inserted so that the head 2 a does not protrude from the slope N, and the head 2 a is exposed from the mortar M. FIG. As shown in FIG. 2, a vegetation mat 4 made of a nonwoven fabric containing seeds is laid on the slope N, and a metal protective net 5 formed in a grid pattern at intervals of 10 cm is laid on the upper surface of the vegetation mat 4.

次に、モルタルＭが硬化すると、図１１（ｂ）に示すようにアンカー引張部材２に押えプレート１０を取り付ける。押えプレート１０は、図２，３に示すように上面が開放され底面に３０ｍｍのアンカー孔１０ｂが形成された鋼管からなる筒体１０ａの開口縁部に厚さ６ｍｍ，縦横が３００ｍｍの鋼板からなる押え片１０ｃを溶着し、押え片１０ｃに複数の小孔１０ｄを形成している。   Next, when the mortar M is cured, the presser plate 10 is attached to the anchor tension member 2 as shown in FIG. As shown in FIGS. 2 and 3, the presser plate 10 is made of a steel plate having a thickness of 6 mm and a length and width of 300 mm at the opening edge of a tubular body 10a made of a steel pipe having an open upper surface and a 30 mm anchor hole 10b formed on the bottom surface. The presser piece 10c is welded, and a plurality of small holes 10d are formed in the presser piece 10c.

この押えプレート１０のアンカー孔１０ｂを図１２（ｂ）に示すようにアンカー引張部材２の頭部２ａに挿入しながら筒体１０ａを地中に埋入して植生マット４と保護ネット５を押え片１０ｃで法面Ｎに押え付け、筒体１０ａ内に露出したアンカー引張部材２の頭部２ａにワッシャー７とナット８を螺挿してラチェット等で強く締め付け、植生マット４と保護ネット５を法面Ｎに固定する地中アンカー１を構成する。   While the anchor hole 10b of the presser plate 10 is inserted into the head 2a of the anchor tension member 2 as shown in FIG. 12B, the cylinder 10a is embedded in the ground to hold the vegetation mat 4 and the protective net 5 in place. The piece 10c is pressed against the slope N, and the washer 7 and the nut 8 are screwed into the head 2a of the anchor tension member 2 exposed in the cylinder 10a and tightened with a ratchet or the like, and the vegetation mat 4 and the protective net 5 are fixed. The underground anchor 1 fixed to the surface N is configured.

その後、押えプレート１０の筒体１０ａ内にモルタルＭを充填して閉塞し、モルタルＭを硬化させて図７，１３に示す法面Ｎに仕上げる。このようにして施工された法面Ｎは、表面に従来のような突起物がなく平坦に形成されており、植生後は早期に部材が隠れて見えなくなるとともに歩行時も安全なものとなった。また、押えプレート１０の小孔１０ｄからも植生して、ほぼ完全に部材を隠して緑化できた。その他、符号、構成は実施例１と同じである。   Thereafter, the cylinder 10a of the presser plate 10 is filled with the mortar M and closed, and the mortar M is cured to finish the slope N shown in FIGS. The slope N thus constructed is flat without any conventional protrusions on the surface, and after vegetation, the member is hidden early and becomes invisible and is safe during walking. . In addition, vegetation was also made from the small hole 10d of the presser plate 10, and the member could be almost completely hidden and greened. Other reference numerals and configurations are the same as those in the first embodiment.

図１４に示すのは、実施例２の地中アンカーの打設の他の例である。図１４は実施例２の他の例の地中アンカーの打設を示す説明図である。図中、１１はガイドレール、１２はウインチ、１３はワイヤー、１４は支柱、１５はジャックハンマー、１６は間知ブロックである。図１４に示す方法では、法面Ｎに沿ってガイドレール１１を縦方向に配設し、ガイドレール１１の頂部にウインチ１２を取り付け、打設すべき箇所の近接位置に支柱１４を建ててウインチ１２のワイヤー１３で支持し、支柱１４にジャックハンマー１５を取り付けてアンカー引張部材２を地盤Ｇへ打撃圧入していく。この直打ちは人力の他に規模や法面Ｎの角度等に応じてバックホウ等の重機を用いて行ってもよい。その他、符号、構成は実施例２と同じである。   FIG. 14 shows another example of the placement of the underground anchor of the second embodiment. FIG. 14 is an explanatory view showing placement of an underground anchor according to another example of the second embodiment. In the figure, 11 is a guide rail, 12 is a winch, 13 is a wire, 14 is a column, 15 is a jack hammer, and 16 is a cognitive block. In the method shown in FIG. 14, the guide rail 11 is arranged vertically along the slope N, the winch 12 is attached to the top of the guide rail 11, and the column 14 is built in the vicinity of the place to be driven. 12 is supported by a wire 13, a jack hammer 15 is attached to the support 14, and the anchor tension member 2 is hit and pressed into the ground G. This direct hitting may be performed by using a heavy machine such as a backhoe according to the scale, the angle of the slope N, etc. in addition to human power. Other reference numerals and configurations are the same as those in the second embodiment.

本発明の補強筋法面工は、崩壊した法面又は崩壊し易い法面の保護，緑化に有用である。   The reinforcing bar slope work of the present invention is useful for protecting and greening a collapsed slope or a slope that tends to collapse.

実施例１の施工後の法面の断面図である。2 is a cross-sectional view of a slope after execution of Example 1. FIG. 実施例１の押えプレートの斜視図である。3 is a perspective view of a presser plate of Example 1. FIG. 実施例の施工工程の説明図である。It is explanatory drawing of the construction process of an Example. 実施例の施工工程の説明図である。It is explanatory drawing of the construction process of an Example. 実施例の押えプレートの締着状態を示す拡大断面図である。It is an expanded sectional view which shows the fastening state of the presser plate of an Example. 実施例の施工後の法面の平面図である。It is a top view of the slope after construction of an Example. 実施例２の施工後の法面の断面図である。It is sectional drawing of the slope after the construction of Example 2. FIG. 実施例２の押えプレートの斜視図である。FIG. 6 is a perspective view of a presser plate of Example 2. 図８のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 実施例２の施工工程の説明図である。10 is an explanatory diagram of a construction process of Example 2. FIG. 実施例２の施工工程の説明図である。10 is an explanatory diagram of a construction process of Example 2. FIG. 実施例２の押えプレートの締着状態を示す拡大断面図である。It is an expanded sectional view which shows the fastening state of the presser plate of Example 2. FIG. 実施例２の施工後の法面の平面図である。6 is a plan view of a slope after construction of Example 2. FIG. 実施例２の他の例の地中アンカーの打設を示す説明図である。It is explanatory drawing which shows the placement of the underground anchor of the other example of Example 2. FIG.

符号の説明Explanation of symbols

１ 地中アンカー
２ アンカー引張部材
２ａ 頭部
３ 削孔
４ 植生マット
５ 保護マット
６ 押えプレート
６ａ アンカー孔
６ｂ 小孔
７ ワッシャー
８ ナット
８ａ 保護キャップ
９ バックホウ
９ａ オーガ
１０ 押えプレート
１０ａ 筒体
１０ｂ アンカー孔
１０ｃ 押え片
１０ｄ 小孔
１１ ガイドレール
１２ ウインチ
１３ ワイヤー
１４ 支柱
１５ ジャックハンマー
１６ 間知ブロック
Ｇ 地盤
Ｍ モルタル
Ｎ 法面 DESCRIPTION OF SYMBOLS 1 Underground anchor 2 Anchor tension member 2a Head 3 Drilling hole 4 Vegetation mat 5 Protective mat 6 Presser plate 6a Anchor hole 6b Small hole 7 Washer 8 Nut 8a Protection cap 9 Backhoe 9a Auger 10 Presser plate 10a Tubular body 10b Anchor hole 10c Presser piece 10d Small hole 11 Guide rail 12 Winch 13 Wire 14 Post 15 Jack hammer 16 Interference block G Ground M Mortar N Slope

Claims (7)

法面地盤に複数の地中アンカーを所定間隔おいて打設して法面からアンカー引張部材の頭部を突出させ、打設した法面に植生マットを敷設し、植生マットの上面に保護ネットを重ねて敷設し、板材の中央部を穿孔して押えプレートとし、同押えプレートの孔を地中アンカーのアンカー引張部材の頭部に挿入して植生マットと保護ネットを法面に押し付け、押えプレートとアンカー引張部材の頭部とを締具により締着し、植生マットと保護ネットを法面に固定して保護・緑化できるようにしたことを特徴とする、補強筋法面工。   Multiple underground anchors are placed on the slope ground at predetermined intervals, the head of the anchor tension member protrudes from the slope, a vegetation mat is laid on the slope, and a protective net is placed on the top surface of the vegetation mat. Lay out and pierce the center part of the plate material to make a presser plate, insert the hole of the presser plate into the head of the anchor tension member of the underground anchor, press the vegetation mat and protective net against the slope and press Reinforcing bar slope work, characterized in that the plate and the head of the anchor tension member are fastened with fasteners, and the vegetation mat and protective net are fixed to the slope so that they can be protected and greened. 地中アンカーの打設が、法面地盤を掘削した削孔に固化材を注入し、同固化材の硬化前にアンカー引張部材をその頭部が露出するようにして削孔に挿入し、固化材を硬化させてアンカー引張部材を固定するようにしたものである、請求項１記載の補強筋法面工。   Underground anchoring is performed by injecting solidified material into the drilling hole excavated on the slope ground and inserting the anchor tension member into the drilling hole so that its head is exposed before the solidified material is hardened. The reinforcing bar slope work according to claim 1, wherein the anchor member is fixed by curing the material. 法面地盤に複数の地中アンカーをそのアンカー引張部材の頭部が法面から突出しないように所定間隔おいて打設し、打設した法面に植生マットを敷設し、植生マットの上面に保護ネットを重ねて敷設し、上方が開放され且つ底部が穿孔された筒体の開放縁部に板状の押え片を形成して押えプレートとし、同押えプレートの筒体を地中に埋入しながら筒体の孔をアンカー引張部材の頭部に挿入して植生マットと保護ネットを押え片で法面に押し付け、押えプレートとアンカー引張部材の頭部とを押えプレートの筒体内で締具により締着して植生マットと保護ネットを法面に固定し、アンカー引張部材の頭部を法面から突出させないようにして法面を保護・緑化できるようにしたことを特徴とする、補強筋法面工。   A plurality of underground anchors are placed on the slope ground at predetermined intervals so that the heads of the anchor tension members do not protrude from the slope, and a vegetation mat is laid on the slope where the anchor is placed. Overlay the protective net, form a plate-shaped pressing piece on the open edge of the cylinder with the top open and the bottom drilled, and use it as a holding plate. While inserting the hole of the cylinder into the head of the anchor tension member and pressing the vegetation mat and the protective net against the slope with the presser piece, the clamp plate and the head of the anchor tension member are clamped in the cylinder of the presser plate. Reinforcing bars, which are fastened by fixing the vegetation mat and the protective net to the slope, so that the slope can be protected and greened so that the head of the anchor tension member does not protrude from the slope Slope work. 締着した押えプレートの筒体内に固化材を充填して被覆し、押えプレートの上面を平坦に形成できるようにした、請求項３記載の補強筋法面工。   The reinforcing bar slope construction according to claim 3, wherein the cylinder of the clamped presser plate is filled with a solidifying material and covered so that the upper surface of the presser plate can be formed flat. 地中アンカーの打設が、法面地盤を掘削した削孔にアンカー引張部材の頭部が露出できる量の固化材を注入し、同固化材の硬化前にアンカー引張部材をその頭部が露出するようにして削孔に挿入し、固化材を硬化させてアンカー引張部材を固定するようにしたものである、請求項３又は４いずれか記載の補強筋法面工。   When placing the underground anchor, inject a solidifying material in an amount enough to expose the head of the anchor tension member into the drilled hole in the slope ground, and the head of the anchor tension member is exposed before the solidified material is hardened. The reinforcing bar slope work according to claim 3 or 4, wherein the anchor tension member is fixed by hardening the solidified material by inserting into the drilling hole. 地中アンカーの打設が、法面地盤にアンカー引張部材を直接圧入し、地盤との摩擦力でアンカー引張部材を固定するようにしたものである、請求項１〜５いずれか記載の補強筋法面工。   The reinforcing bar according to any one of claims 1 to 5, wherein the anchor anchor is formed by directly pressing the anchor tension member into the slope ground and fixing the anchor tension member by a frictional force with the ground. Slope work. 押えプレートに小孔を複数形成し、小孔を通じて植物が押えプレートの上方に植生できるようにした、請求項１〜６いずれか記載の補強筋法面工。   The reinforcing bar slope work according to any one of claims 1 to 6, wherein a plurality of small holes are formed in the presser plate so that plants can be vegetated above the presser plate through the small holes.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009102833A (en) * 2007-10-22 2009-05-14 Tankatsu:Kk Greening method of mortar slope and concrete slope
US20110013992A1 (en) * 2008-02-27 2011-01-20 Tomohiro Fujii Structure for preventing rockfall, a rockfall prevention method, and a method for designing said structure
JP2011063956A (en) * 2009-09-16 2011-03-31 Tanigaki Kenko:Kk Anchoring hardware, slope stabilization structure using the same, and method of stabilizing slope
JP2022069791A (en) * 2020-10-26 2022-05-12 中村建設株式会社 Reinforcement method of masonry retaining wall
JP7162852B1 (en) 2021-09-28 2022-10-31 国立大学法人 琉球大学 A construction method and its structure in which the head of an anchor is buried in the drilled hole from the slope

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009102833A (en) * 2007-10-22 2009-05-14 Tankatsu:Kk Greening method of mortar slope and concrete slope
JP4524003B2 (en) * 2007-10-22 2010-08-11 株式会社丹勝 Greening method for mortar slope and concrete slope.
US20110013992A1 (en) * 2008-02-27 2011-01-20 Tomohiro Fujii Structure for preventing rockfall, a rockfall prevention method, and a method for designing said structure
JP2011063956A (en) * 2009-09-16 2011-03-31 Tanigaki Kenko:Kk Anchoring hardware, slope stabilization structure using the same, and method of stabilizing slope
JP2022069791A (en) * 2020-10-26 2022-05-12 中村建設株式会社 Reinforcement method of masonry retaining wall
JP7306637B2 (en) 2020-10-26 2023-07-11 中村建設株式会社 Masonry retaining wall reinforcement method
JP7162852B1 (en) 2021-09-28 2022-10-31 国立大学法人 琉球大学 A construction method and its structure in which the head of an anchor is buried in the drilled hole from the slope
JP2023048387A (en) * 2021-09-28 2023-04-07 国立大学法人 琉球大学 Construction method and structure thereof in which head of anchor tendon is buried in drilled hole from slope

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