JP6718840B2 - Slope protection structure and method of forming the same - Google Patents

Slope protection structure and method of forming the same Download PDF

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JP6718840B2
JP6718840B2 JP2017089998A JP2017089998A JP6718840B2 JP 6718840 B2 JP6718840 B2 JP 6718840B2 JP 2017089998 A JP2017089998 A JP 2017089998A JP 2017089998 A JP2017089998 A JP 2017089998A JP 6718840 B2 JP6718840 B2 JP 6718840B2
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basket
stone
slope
protection structure
slope protection
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行正 戸丸
行正 戸丸
裕治 小柿
裕治 小柿
孝則 藤木
孝則 藤木
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共和ハーモテック株式会社
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Description

本発明は、法面保護構造及びその形成方法に関するものである。 The present invention relates to a slope protection structure and a method for forming the slope protection structure.

従来より、山や谷、道路、住宅地、川岸等における法面の保護のためにふとん籠と呼ばれる石詰籠が用いられてきた。例えば、特許文献１には、直方体状をした蛇籠（石詰籠）を一段ごとに後方に一定距離ずつ後退させた状態で段積し上段の蛇籠の前面網と下段の蛇籠の後面網とを補強線で連結した蛇籠組立体が開示されている。 Traditionally, stone-filled baskets called futon baskets have been used to protect slopes in mountains, valleys, roads, residential areas, riverbanks, and the like. For example, in Patent Document 1, a rectangular parallelepiped gabion (stone-filled cage) is stacked in a state of being retracted backward by a certain distance for each stage, and a front net of the upper gabion and a rear net of the lower gabion are formed. A gabion assembly connected by a reinforcing wire is disclosed.

実開昭６３−８６１４６号公報Japanese Utility Model Publication No. 63-86146 特開平１１−１２４８３２号公報JP, 11-124832, A 特開２０１５−４５１３３号公報JP, 2005-45133, A

特殊な形状の石詰籠を使用すると高コストとなるので、特許文献１に開示されているように直方体形状の一般的な石詰籠を積み重ねて法面を保護構造を構築することが好ましい。この場合、図１０に示すように法面保護構造２００においては、法尻９８に沿って並べられた石詰籠１５ｂ，１５ｂ，・・の列の端部に位置する石詰籠１５ａの後ろ側に存在している土９２の側面９５に課題が生じる。すなわち、端部側の最上段及びその下の石詰籠１５ａの背面の後ろ側に存在している土９２は、その側面９５が露出しているので、雨が降ると法面９６を流れ落ちる雨水によって側面９５部分の土９２が洗い流されて洗掘されてしまうという課題があった。洗掘の度合が大きくなると石詰籠１５ａが後方へ倒れてしまう危険も発生する。そのため、法面保護構造２００の端部をコンクリートによって覆う必要があり、コストが増加し、工期も長引いてしまうという課題があった。 Since the use of a specially-shaped stone-filled basket causes a high cost, it is preferable to stack a general stone-filled basket having a rectangular parallelepiped shape to construct a protection structure on the slope as disclosed in Patent Document 1. In this case, as shown in FIG. 10, in the slope protection structure 200, the rear side of the stone basket 15a located at the end of the row of stone baskets 15b, 15b,... A problem occurs on the side surface 95 of the soil 92 existing in the. That is, since the side surface 95 of the soil 92 existing on the uppermost stage on the end side and on the rear side of the back surface of the stone basket 15a below the side surface 95 is exposed, rainwater that flows down the slope 96 when it rains. As a result, there is a problem that the soil 92 on the side surface 95 is washed away and scourd. If the degree of scour increases, the stone basket 15a may fall backward. Therefore, there is a problem in that it is necessary to cover the end of the slope protection structure 200 with concrete, which increases cost and prolongs the construction period.

本発明は、かかる点に鑑みてなされたものであり、その目的とするところは、簡単な構造であって低コストで端部側面の洗掘を防止することができる法面保護構造を提供することにある。 The present invention has been made in view of the above points, and an object thereof is to provide a slope protection structure that has a simple structure and can prevent scour of the end side surface at low cost. Especially.

本発明の法面保護構造は、複数の石詰籠を積み上げてなり、積み上げた石詰籠のユニットを法尻に沿って並べた法面保護構造であって、積み上げた石詰籠の前記ユニットのうち、法尻に沿った端部に設置された端部ユニットにおいて、少なくとも最上段の石詰籠の少なくとも法尻に沿った端部側は、背面が法面に当接して載せられており、前記少なくとも最上段の石詰籠は、直方体形状の第１の籠の背面側に、背面が法面に当接して載せられている第２の籠が連結されている構成を備えている。 The slope protection structure of the present invention is a slope protection structure formed by stacking a plurality of stone baskets and arranging the stacked stone basket units along the slope, and the units of the stacked stone baskets are provided. Of the end units installed at the end along the buttock, at least the end side of the uppermost stone basket along the buttock is placed with the back surface abutting the slope. The at least uppermost stone-filled basket has a structure in which a second basket, which is placed with its rear surface in contact with the slope, is connected to the rear surface side of the first rectangular parallelepiped basket.

前記第２の籠は、複数の溶接金網パネルを連結させて形成されていて、底面の前方側の端部は、前記第１の籠の背面に平行に延びる横鉄線から垂直に前方へ縦鉄線が突き出していることが好ましい。 The second basket is formed by connecting a plurality of welded wire mesh panels, and the front end of the bottom surface is a vertical iron wire extending vertically from a horizontal iron wire extending parallel to the back surface of the first basket. Is preferably protruding.

前記第２の籠は、前記第１の籠の背面を前記第２の籠の正面として共用し、前記縦鉄線の前方に突き出している部分が、前記第１の籠の底面の下側又は上側に挿し込まれていることが好ましい。 In the second basket, the back surface of the first basket is shared as the front surface of the second basket, and the portion protruding toward the front of the vertical iron wire is below or above the bottom surface of the first basket. Is preferably inserted into

前記第２の籠の底面と背面は１枚の溶接金網パネルを折り曲げて一体として形成されていることが好ましい。 It is preferable that the bottom surface and the back surface of the second basket are formed integrally by bending one welded wire mesh panel.

前記端部ユニットに隣接する前記ユニットでは、最上段の石詰籠は直方体形状を有していることが好ましい。 In the unit adjacent to the end unit, it is preferable that the uppermost stone basket has a rectangular parallelepiped shape.

本発明の法面保護構造の形成方法は、複数の石詰籠によって法面を保護する法面保護構造の形成方法であって、地盤の上に、法尻に沿って石詰籠を並べる工程と、前記石詰籠の上に少なくとも１段、別の石詰籠を積み上げる積み上げ工程と、前記石詰籠及び前記別の石詰籠の背面側に裏込材を込める裏込め工程とを含み、前記積み上げ工程では、直方体形状の第１の籠の背面側に、背面が法面と平行に形成された第２の籠を連結して、法尻に沿った端部に配置される前記別の石詰籠とする構成を備えている。 The method for forming a slope protection structure of the present invention is a method for forming a slope protection structure in which a slope is protected by a plurality of stone cages, and a step of arranging the stone cages along the slope on the ground And a stacking step of stacking another stone-filled basket at least one step on the stone-filled basket, and a back-filling step of putting a backing material on the back side of the stone-filled basket and the other stone-filled basket. In the stacking step, a second basket having a back surface formed in parallel with a slope is connected to the back of the first basket having a rectangular parallelepiped shape, and the second basket is arranged at an end along the slope. It is equipped with a stone basket.

本発明の法面保護構造は、法尻に沿った端部の石詰籠のユニットにおいて直方体形状の第１の籠の背面側に、背面が法面に当接して載せられている第２の籠が連結されているという簡単な構造により、低コストで法尻に沿った端部の上端の洗掘を防止できる。 In the slope protection structure of the present invention, in the unit of the stone basket at the end along the slope, the second cage is mounted on the rear side of the first cage having a rectangular parallelepiped shape so that the rear surface is in contact with the slope. Due to the simple structure in which the baskets are connected, it is possible to prevent the scouring of the upper end of the end along the slope at a low cost.

実施形態に係る法面保護構造の模式的な斜視図である。It is a typical perspective view of the slope protection structure concerning an embodiment. 第１の籠と第２の籠とを側方から見た図である。It is the figure which looked at the 1st basket and the 2nd basket from the side. 第１の籠を前方から見た図である。It is the figure which looked at the 1st basket from the front. 第１の籠と第２の籠とを上方から見た図である。It is the figure which looked at the 1st basket and the 2nd basket from the upper part. 蓋を取り払った第１の籠と第２の籠とを上方から見た図である。It is the figure which looked at the 1st basket and the 2nd basket which removed the lid from the upper part. 図３のＡ−Ａ’線断面である。4 is a cross section taken along line A-A′ of FIG. 3. 第２の籠の底面と背面をなす折り曲げパネル部材を側方から見た図である。It is the figure which looked at the folding panel member which makes the bottom and the back of the 2nd basket from the side. 折り曲げパネル部材を形成する溶接金網パネルの平面図である。It is a top view of the welding wire mesh panel which forms a folding panel member. 第２の籠の側面パネルを示す図である。It is a figure which shows the side panel of a 2nd cage. 従来の法面保護構造の模式的な斜視図である。It is a typical perspective view of the conventional slope protection structure.

本発明を実施形態によって説明を行う前に、本発明に想到するに至った経緯について説明を行う。 Before describing the present invention with the embodiments, a background of the present invention will be described.

従来より法面を保護するために石詰籠を利用した法面保護構造において、背面側の金網を斜めにして法面に載せる構造（例えば、特許文献２，３）は知られている。しかしながら、これらは構造物が設置された法面全体において、即ち、法面の下から上まで且つ横方向も全面にわたって背面側の金網を斜めにして法面に載せている。また、特許文献２，３に開示されているのは、標準的な直方体形状の石詰籠ではなく、特殊な形状であってコストが増加するとともに、各工事現場の状況に合わせた奥行きの調整が困難であった。このような状況に鑑みて、本願発明者らは検討を重ねて本願発明を想到するに至った。 BACKGROUND ART Conventionally, in a slope protection structure using a stone basket for protecting a slope, a structure in which a wire mesh on the back side is inclined and placed on the slope is known (for example, Patent Documents 2 and 3). However, these are placed on the slope with the back side wire mesh being slanted over the entire slope where the structure is installed, that is, from the bottom to the top of the slope and the entire surface in the lateral direction. Further, what is disclosed in Patent Documents 2 and 3 is not a standard rectangular parallelepiped-shaped stone-filled basket, but a special shape that increases cost, and the depth is adjusted according to the situation of each construction site. Was difficult. In view of such a situation, the inventors of the present application have made extensive studies and arrived at the present invention.

以下、本発明の実施形態を図面に基づいて詳細に説明する。以下の好ましい実施形態の説明は、本質的に例示に過ぎず、本発明、その適用物或いはその用途を制限することを意図するものではない。以下の図面においては、説明の簡潔化のため、実質的に同一の機能を有する構成要素を同一の参照符号で示す。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The description of the preferred embodiments below is merely exemplary in nature and is not intended to limit the present invention, its application, or its application. In the following drawings, for simplification of description, components having substantially the same function are designated by the same reference numeral.

（実施形態１）
実施形態１に係る法面保護構造を図１に示す。この法面保護構造１００は、石詰籠１５，１５，・・を積み上げたユニットを法尻９８に沿って並べて形成されている。図１では下から上に石詰籠１５，１５，・・を４段積み上げてユニットを形成している。法尻９８に沿ってユニットが並べられているが、その最も端（端部）に設置されたユニット以外のユニットは直方体形状の石詰籠１５を用いて形成されている。 (Embodiment 1)
The slope protection structure according to the first embodiment is shown in FIG. The slope protection structure 100 is formed by arranging units in which the stone baskets 15, 15,... Are stacked along the slope 98. In FIG. 1, the stone baskets 15, 15,... Are stacked from bottom to top to form a unit. The units are arranged along the ridge 98, but the units other than the unit installed at the most end (end) are formed by using the cuboid-shaped stone basket 15.

一方、端部に設置されたユニット（端部ユニット）においては、側面が露出している。そして、端部ユニットの最上段、上から２番目および３番目の石詰籠１３は、直方体形状の第１の籠１１の背面側に第２の籠１２が連結されて形成されている。第２の籠１２はその背面が法面に当接して載せられている。 On the other hand, in the unit installed at the end (end unit), the side surface is exposed. The uppermost stage, the second and third stone-filled baskets 13 from the top of the end unit are formed by connecting the second basket 12 to the back side of the rectangular parallelepiped first basket 11. The second basket 12 is placed with its rear surface in contact with the slope.

図２は端部の最上段における石詰籠１３の側面を、図３は正面（前面）を、図４は上面を示す。この石詰籠１３は、第１の籠１１と第２の籠１２とからなり、いずれの籠も溶接金網からなる金網パネルを複数組み合わせて、それらの金網パネル同士をコイル４１により連結させて形成されている。この金網パネルは、表面に亜鉛アルミ合金めっきが施された鉄線から構成されており、複数の横線及び縦線を直角に交わるように配列させて、その交点を溶接して形成されている。そして、石詰籠１３の内部に石が詰め込まれている。石は例えば、割り栗石や砕石、コンクリート破砕物等を用いることができる。 2 shows the side surface of the stone basket 13 at the uppermost stage of the end, FIG. 3 shows the front surface (front surface), and FIG. 4 shows the upper surface. The stone-filled basket 13 is composed of a first basket 11 and a second basket 12, and each basket is formed by combining a plurality of wire mesh panels made of welded wire mesh and connecting the wire mesh panels with each other by a coil 41. Has been done. This wire mesh panel is composed of an iron wire whose surface is plated with a zinc aluminum alloy, and is formed by arranging a plurality of horizontal lines and vertical lines so as to intersect at a right angle and welding the intersections. Then, stones are packed inside the stone basket 13. As the stone, for example, crushed stone, crushed stone, crushed concrete or the like can be used.

さらに、第１の籠１１の上面である蓋２６、および第２の籠１２の上面である蓋３６を取り払って上方から内部を示したのが図５である。なお図５および以下に説明する図面で籠の内部を示したものは、内部構造がわかりやすいように内部の石を省略している。そして図３のＡ−Ａ’線断面（図を見やすくするため、この図の奥側に存している側面パネルは省略している）が図６である。本実施形態では第１の籠１１の法尻９８に平行な幅が、第２の籠１２の幅の略２倍であって、第２の籠１２は第１の籠１１の端部側において側面が面一になるように設置されている。第１の籠１１は正面２３（前面）、底面２１および背面２２を、１枚の溶接金網パネルを折り曲げてコの字型にして形成している。一方第２の籠１２は、図７，８に示すように、底面３１および背面３２を、１枚の溶接金網パネル３７ａを折り曲げて形成された折り曲げパネル部材３７により構成している。金網パネル３７ａは、Ｃ−Ｃ’線のところで約１３５度の角度で折り曲げられている。 Further, FIG. 5 shows the inside from above by removing the lid 26 that is the upper surface of the first basket 11 and the lid 36 that is the upper surface of the second basket 12. In FIG. 5 and the drawings described below, the inside of the basket is shown with the stones inside omitted for the sake of easy understanding of the internal structure. FIG. 6 is a sectional view taken along the line A-A′ of FIG. 3 (the side panel on the back side of this figure is omitted for the sake of clarity). In the present embodiment, the width of the first basket 11 parallel to the butt 98 is approximately twice the width of the second basket 12, and the second basket 12 is on the end side of the first basket 11. It is installed so that the sides are flush. The first basket 11 has a front surface 23 (front surface), a bottom surface 21 and a back surface 22 formed by bending a single welded wire mesh panel into a U-shape. On the other hand, in the second basket 12, as shown in FIGS. 7 and 8, the bottom surface 31 and the back surface 32 are formed by a bent panel member 37 formed by bending a single welded wire mesh panel 37a. The wire mesh panel 37a is bent at an angle of about 135 degrees at the line C-C'.

第２の籠１２は、底面３１、背面３２、側面３４（図９）および蓋３６から構成されていて、第１の籠１１の背面２２を前面としている。即ち、第１の籠１１の背面２２が第２の籠１２の正面を兼ねている。底面３１の前面側には、第１の籠１１の背面２２に平行に延びる横鉄線３８から前方に突き出している縦鉄線３９，３９，・・が存している。この縦鉄線３９，３９，・・が第１の籠１１の背面２２から第１の籠１１内に挿し込まれている。 The second basket 12 is composed of a bottom surface 31, a back surface 32, a side surface 34 (FIG. 9) and a lid 36, and the back surface 22 of the first basket 11 is the front surface. That is, the back surface 22 of the first basket 11 also serves as the front surface of the second basket 12. On the front side of the bottom surface 31, there are vertical iron wires 39, 39,... Which project forward from a horizontal iron wire 38 extending parallel to the back surface 22 of the first basket 11. The vertical iron wires 39, 39,... Are inserted into the first basket 11 from the rear surface 22 of the first basket 11.

このような構造により、それぞれの現場の状況に合わせて、縦鉄線３９，３９，・・の、第１の籠１１の背面２２から第１の籠１１内への挿し込み長さを調整することができる。即ち、法面保護構造は、石詰籠を複数積み上げて製作されるため、最上段の石詰籠の正面から、掘削された法面部分までの距離が各工事現場によって、まちまちになってしまうが、本実施形態の法面保護構造であれば、挿し込み長さを調整することによってそのような事態に容易に適応できる。さらに、横鉄線３８を切断することにより、挿し込み長さをより長くすることが可能である。横鉄線３８は複数本切断してもよい。 With such a structure, the length of insertion of the vertical iron wires 39, 39,... From the rear surface 22 of the first basket 11 into the first basket 11 can be adjusted according to the situation of each site. You can That is, since the slope protection structure is manufactured by stacking a plurality of stone baskets, the distance from the front face of the top stone basket to the excavated slope surface varies depending on the construction site. However, the slope protection structure of the present embodiment can be easily adapted to such a situation by adjusting the insertion length. Further, by cutting the horizontal iron wire 38, the insertion length can be made longer. A plurality of horizontal iron wires 38 may be cut.

第２の籠１２の背面３２は法面に当接するように設置される。法面と水平面とがなす角が、折り曲げパネル部材３７の角度と多少異なっても、工事現場で折り曲げパネル部材３７の曲げ角度を調節できる。また、折り曲げパネル部材３７と蓋３６および側面３４との連結がコイル４１によって行われるため、折り曲げパネル部材３７の曲げ角度を多少調節しても、両者の連結が可能である。 The back surface 32 of the second basket 12 is installed so as to abut the slope. Even if the angle formed by the slope and the horizontal surface is slightly different from the angle of the bent panel member 37, the bending angle of the bent panel member 37 can be adjusted at the construction site. Also, since the bent panel member 37 is connected to the lid 36 and the side surface 34 by the coil 41, the both can be connected even if the bending angle of the bent panel member 37 is slightly adjusted.

第１の籠１１は、第１ステー４２によって正面２３と底面２１、背面２２と底面２１，側面と底面２１を結びつけて補強している。また、第１ステー４２よりも長い第２ステー４３により、正面２３と背面２２とを結びつけて補強を行っている。一方、第２の籠１２も、側面３４と底面３１とを第１ステー４２によって結びつけて補強している。第１ステー４２および第２ステー４３は、鉄線の両端を曲げて両端ともに鉤状にした補強部材である。 The first cage 11 is reinforced by connecting the front surface 23 and the bottom surface 21, the back surface 22 and the bottom surface 21, and the side surface and the bottom surface 21 by the first stay 42. Further, the second stay 43, which is longer than the first stay 42, connects the front surface 23 and the rear surface 22 to each other for reinforcement. On the other hand, also in the second basket 12, the side surface 34 and the bottom surface 31 are connected and reinforced by the first stay 42. The first stay 42 and the second stay 43 are reinforcing members in which both ends of an iron wire are bent and both ends are hooked.

次に本実施形態の法面保護構造の形成方法について説明を行う。 Next, a method for forming the slope protection structure of this embodiment will be described.

まず、法面と法尻部分を掘削し、最下段の石詰籠１５を、溶接金網パネルを組み合わせコイルにより連結を行って形成する。最下段の石詰籠１５は法尻９８に沿って所定の範囲に設置する。そのとき、隣合う石詰籠１５同士はコイルにより連結を行う。それから吸い出し防止用の不織布を石詰籠１５の底面および背面を覆うように設置する。なお、不織布は石詰籠の外側に設置してもよい。そして、石詰籠１５の中に石を詰める。上面まで石を詰めたら、蓋となる溶接金網パネルを載せてコイルで正面、背面および側面に連結する。それから、背面側を埋め戻す。 First, the slope and the slope bottom are excavated, and the stone basket 15 at the bottom is formed by combining welded wire mesh panels and connecting them by a coil. The stone basket 15 at the bottom is installed in a predetermined area along the butt 98. At that time, the adjacent stone baskets 15 are connected by a coil. Then, a non-sucking non-woven fabric is installed so as to cover the bottom surface and the back surface of the stone basket 15. The non-woven fabric may be placed outside the stone basket. Then, the stone is packed in the stone basket 15. After filling the top surface with stones, place a welded wire mesh panel as a lid and connect it to the front, back and side with a coil. Then backfill the back side.

次に、２段目の石詰籠１５を、最下段の石詰籠１５の上であって、少し後方側に位置するよう形成する。形成方法は最下段と同じである。なお、端部には第１の籠１１と第２の籠１２からなる石詰籠１３を設置する。第１の籠１１は石詰籠１５と同様に形成し、第２の籠１２は、折り曲げパネル部材３７の縦鉄線３９，３９，・・を第１の籠１１の背面２２側から第１の籠１１内に挿し込み、折り曲げパネル部材３７と側面３４とをコイル４１で連結を行う。その後、最下段と同様にして不織布設置、石の充填、蓋の設置、背面埋め戻しを行う。第２の籠１２では、土砂と接する側面側にも不織布を設置する。 Next, the second-stage stone filling basket 15 is formed so as to be located on the lowermost stone filling basket 15 and slightly rearward. The forming method is the same as that of the bottom. A stone-filled basket 13 including a first basket 11 and a second basket 12 is installed at the end. The first basket 11 is formed in the same manner as the stone-filled basket 15, and the second basket 12 includes the vertical iron wires 39, 39,... Of the bent panel member 37 from the rear surface 22 side of the first basket 11 to the first basket wire. It is inserted in the basket 11 and the bent panel member 37 and the side surface 34 are connected by the coil 41. After that, in the same manner as in the lowermost stage, non-woven fabric installation, stone filling, lid installation, and back filling are performed. In the second basket 12, the non-woven fabric is also installed on the side surface in contact with the earth and sand.

次に、３段目の石詰籠１３，１５も第２段目と同様にして形成する。 Next, the stone baskets 13 and 15 in the third stage are also formed in the same manner as in the second stage.

さらに、４段目の石詰籠１３，１５も第２段目と同様にして形成する。こうして、図１に示す法面保護構造１００が出来上がる。 Further, the stone baskets 13 and 15 on the fourth stage are formed in the same manner as the second stage. Thus, the slope protection structure 100 shown in FIG. 1 is completed.

本実施形態の法面保護構造１００であれば、法尻９８に沿った構造の端において、法面の土砂が降雨や流水により洗掘されてしまうことを防止できる。端部の最上段の石詰籠１３によって、それよりも内側に並べられた最上段の直方体形状の石詰籠１５の背後に載せられ、上面が露出している背面土砂９０の洗掘も防止される。これにより、法面保護構造１００および法面９６が崩れてしまうことを防止でき、また、法尻９８に水路が設けられたときに、その水路が洗掘された土砂により埋められてしまうことが防止できる。 With the slope protection structure 100 of the present embodiment, it is possible to prevent the soil on the slope from being scourd by rainfall or running water at the end of the structure along the slope 98. By the stone basket 13 on the uppermost stage at the end, it is placed behind the stone basket 15 having the rectangular parallelepiped shape on the innermost side, and the backside sand 90 whose upper surface is exposed is prevented from being scoured. To be done. As a result, the slope protection structure 100 and the slope 96 can be prevented from collapsing, and when the canal 98 is provided with a canal, the canal can be filled with scrubbed sand. It can be prevented.

本実施形態の法面保護構造１００では、大部分の石詰籠１５として既存の直方体形状の籠を使用できるため、コストを抑えることができる。また、法尻９８の端に設置された石詰籠１３は、既存の直方体形状の籠である第１の籠１１に、折り曲げパネル部材３７と蓋３６および側面３４からなる第２の籠１２を取り付けるだけなので、施工もしやすく、コストも小さくできる。そして、第２の籠１２は簡単な構造であって、縦鉄線３９の第１の籠１１内への挿し込み量を変えることにより施工現場で正面と背面間の長さも容易に調節でき、この点でもコストを小さくできる。 In the slope protection structure 100 of the present embodiment, the existing cuboid cage can be used as most of the stone baskets 15, so that the cost can be suppressed. In addition, the stone-filled basket 13 installed at the end of the Hojiri 98 has the second basket 12 including the bent panel member 37, the lid 36, and the side surface 34 in addition to the first basket 11 that is an existing rectangular parallelepiped basket. Since it is just attached, construction is easy and cost can be reduced. The second basket 12 has a simple structure, and the length between the front face and the back face can be easily adjusted at the construction site by changing the insertion amount of the vertical iron wire 39 into the first basket 11. The cost can be reduced in terms.

（その他の実施形態）
上述の実施形態は本願発明の例示であって、本願発明はこれらの例に限定されず、これらの例に周知技術や慣用技術、公知技術を組み合わせたり、一部置き換えたりしてもよい。また当業者であれば容易に思いつく改変発明も本願発明に含まれる。 (Other embodiments)
The above-described embodiment is merely an example of the present invention, and the present invention is not limited to these examples, and well-known techniques, common techniques, and well-known techniques may be combined or partially replaced with these examples. Modified inventions that can be easily conceived by those skilled in the art are also included in the present invention.

法尻に沿った端部に置かれた石詰籠ユニット以外のユニットにおいても、最上段を第１の籠と第２の籠とを組み合わせた石詰籠にしても構わないし、最上段以外の段も同様の石詰籠としてもよい。それにより、土砂の洗掘をより防止することができる。 In units other than the stone basket basket unit placed at the end along the slope, the top stage may be a stone basket basket in which the first basket and the second basket are combined, The steps may be a similar stone basket. Thereby, the scour of earth and sand can be prevented more.

石詰籠の構造は、第１の籠を含めて上記の実施形態に限定されない。例えば、各面を別々の金網パネルで構成してもよい。また、第１の籠の背面を一部又は全て切断しても構わない。さらには、第１の籠の正面と底面を、側面視においてＬ字型の折り曲げ溶接金網パネル部材を用い、背面は設置せずに、第２の籠と組み合わせてもよい。 The structure of the stone-filled basket, including the first basket, is not limited to the above embodiment. For example, each surface may be composed of a separate wire mesh panel. Further, a part or all of the back surface of the first basket may be cut. Further, the front surface and the bottom surface of the first basket may be combined with the second basket without using the rear surface by using an L-shaped bent welded wire mesh panel member in a side view.

金網パネル同士を連結する部材はコイルに限定されず、例えばクリップと呼ばれる部材を使用してもよい。金網パネルは溶接金網を用いたパネルが好ましいが、菱形金網やエキスパンドメタルを用いたパネルでもよい。 The member that connects the metal mesh panels is not limited to the coil, and a member called a clip may be used, for example. The wire mesh panel is preferably a panel using a welded wire mesh, but may be a panel using a diamond wire mesh or an expanded metal.

第２の籠の縦鉄線を第１の籠に挿し込んだ後、第２の籠の縦鉄線と第１の籠の底面を構成する鉄線とを連結部材を用いて連結してもよい。 After inserting the vertical iron wire of the second cage into the first cage, the vertical iron wire of the second cage and the iron wire forming the bottom surface of the first cage may be connected using a connecting member.

１１ 第１の籠
１２ 第２の籠
１３，１５ 石詰籠
３１ （第２の籠の）底面
３２ （第２の籠の）背面
３７ａ 溶接金網パネル
３８ 横鉄線
３９ 縦鉄線
９６ 法面
９８ 法尻
１００，２００ 法面保護構造 11 First Basket 12 Second Basket 13, 15 Stone Stuffed Basket 31 (Second Basket) Bottom Surface 32 (Second Basket) Rear Surface 37a Welded Wire Mesh Panel 38 Horizontal Iron Wire 39 Vertical Iron Wire 96 Slope 98 100,200 slope protection structure

Claims (5)

複数の石詰籠を積み上げてなり、積み上げた石詰籠のユニットを法尻に沿って並べた法面保護構造であって、
積み上げた石詰籠の前記ユニットのうち、法尻に沿った端部に設置された端部ユニットにおいて、少なくとも最上段の石詰籠の少なくとも法尻に沿った端部側は、背面が法面に当接して載せられており、
前記少なくとも最上段の石詰籠は、直方体形状の第１の籠の背面側に、背面が法面に当接して載せられている第２の籠が連結されており、
前記第２の籠は、複数の溶接金網パネルを連結させて形成されていて、
底面の前方側の端部は、前記第１の籠の背面に平行に延びる横鉄線から垂直に前方へ縦鉄線が突き出している、法面保護構造。 A slope protection structure that is made by stacking multiple stone baskets and arranging the stacked stone basket units along the slope.
Among the units of the stacked stone baskets, in the end unit installed at the end along the slope, at least the end side of the stone basket on the uppermost stage along the slope has a back surface as a slope. It is placed in contact with
The at least the uppermost stone-filled basket is connected to a second basket on the back side of the first basket having a rectangular parallelepiped shape, the second basket being placed so that the back surface is in contact with the slope .
The second basket is formed by connecting a plurality of welded wire mesh panels,
A slope protection structure in which an end of the bottom surface on the front side has a vertical iron wire vertically protruding forward from a horizontal iron wire extending parallel to the back surface of the first basket . 前記第２の籠は、前記第１の籠の背面を前記第２の籠の正面として共用し、前記縦鉄線の前方に突き出している部分が、前記第１の籠の底面の下側又は上側に挿し込まれている、請求項１に記載されている法面保護構造。 In the second basket, the back surface of the first basket is shared as the front surface of the second basket, and the portion protruding toward the front of the vertical iron wire is below or above the bottom surface of the first basket. slope protection structures described in inserted are incorporated, according to claim 1 to. 前記第２の籠の底面と背面は１枚の溶接金網パネルを折り曲げて一体として形成されている、請求項１又は２に記載されている法面保護構造。 The slope protection structure according to claim 1 or 2 , wherein the bottom surface and the back surface of the second basket are integrally formed by bending one welded wire mesh panel. 前記端部ユニットに隣接する前記ユニットでは、最上段の石詰籠は直方体形状を有している、請求項１から３のいずれか一つに記載されている法面保護構造。 The slope protection structure according to any one of claims 1 to 3 , wherein in the unit adjacent to the end unit, the uppermost stone basket has a rectangular parallelepiped shape. 複数の石詰籠によって法面を保護する法面保護構造の形成方法であって、
地盤の上に、法尻に沿って石詰籠を並べる工程と、
前記石詰籠の上に少なくとも１段、別の石詰籠を積み上げる積み上げ工程と、
前記石詰籠及び前記別の石詰籠の背面側に裏込材を込める裏込め工程と
を含み、
前記積み上げ工程では、直方体形状の第１の籠の背面側に、背面が法面と平行に形成された第２の籠を連結して、法尻に沿った端部に配置される前記別の石詰籠とする、法面保護構造の形成方法。 A method of forming a slope protection structure for protecting a slope by a plurality of stone cages,
On the ground, the process of arranging the stone baskets along the Hojiri,
A stacking step of stacking another stone-filled basket at least one step on the stone-filled basket;
A backfilling step of loading a backfill material on the back side of the stone basket and the another stone basket,
In the stacking step, a second cage having a rear surface formed parallel to a slope is connected to the rear side of the first rectangular parallelepiped-shaped cage, and the second basket arranged at the end along the slope A method for forming a slope protection structure that uses a stone basket.
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