JP3805342B2 - Yamadome wall structure - Google Patents

Yamadome wall structure Download PDF

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JP3805342B2
JP3805342B2 JP2004010583A JP2004010583A JP3805342B2 JP 3805342 B2 JP3805342 B2 JP 3805342B2 JP 2004010583 A JP2004010583 A JP 2004010583A JP 2004010583 A JP2004010583 A JP 2004010583A JP 3805342 B2 JP3805342 B2 JP 3805342B2
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parent
cross member
pile
mountain retaining
mountain
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JP2005201009A (en
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孝志 宮田
司 中洲
宏行 三浦
司 岩橋
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Takenaka Corp
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Description

本発明は、山留面に沿う複数本の親杭と横矢板から構成される山留壁が、前記親杭間にわたって横方向に配設された横材と、その横材と山側土壌の間に配設されたアンカー部材により土圧に対抗するように支持されている山留壁構造に関する。   In the present invention, a mountain retaining wall composed of a plurality of parent piles and lateral sheet piles along the mountain retaining surface is disposed between the parent piles in a lateral direction, and between the transverse members and the mountain side soil. It is related with the mountain retaining wall structure supported so that it may oppose an earth pressure by the anchor member arrange | positioned by.

このような山留壁構造は、例えば、地中に地下構造物を構築するにあたり、土壌の一部を順次下方へ掘削して行く際、その掘削部側への土壌の崩落を防ぐためのもので、従来、親杭の表側、つまり、掘削部側に横材を配置し、さらに、その横材に貫通させたアンカー部材の基端部を横材から掘削部側へ突出させ、その突出させた基端部に固定用の部材を取り付けて、横材によりアンカー部材に作用する土圧対抗力を受け止めるように構成したものが知られている（例えば、特許文献１参照）。   Such a mountain wall structure, for example, is intended to prevent the collapse of soil to the excavation part side when excavating a part of the soil sequentially downward when constructing an underground structure in the ground. Conventionally, a cross member is arranged on the front side of the main pile, that is, the excavation part side, and the base end portion of the anchor member penetrated through the cross member is protruded from the cross member to the excavation part side, and the protrusion is protruded. There is known a structure in which a fixing member is attached to the proximal end portion and configured to receive the earth pressure resistance acting on the anchor member by a cross member (see, for example, Patent Document 1).

特許第２８３２５０８号公報Japanese Patent No. 2832508

しかしながら、上記公報に記載の従来構造では、山留面に沿う方向から見ると、親杭の掘削部側の面から横材がその厚み分だけ完全に突出した状態となる。
したがって、さらに掘削を続ける場合には、その横材が掘削作業の邪魔になり、また、掘削部に地下構造物を構築する場合には、地下構造物を親杭の掘削部側の面に近接させて構築することができず、そのため、どうしても必要以上の面積にわたって掘削しなければならず、掘削作業に多大の労力と時間を要するという問題があった。 However, in the conventional structure described in the above publication, when viewed from the direction along the mountain retaining surface, the cross member protrudes completely from the surface of the main pile on the excavation part side by the thickness.
Therefore, if further excavation is to be continued, the cross member will interfere with the excavation work, and if an underground structure is to be constructed in the excavation part, the underground structure will be close to the surface of the parent pile on the excavation part side. Therefore, there is a problem in that excavation work requires a lot of labor and time because it must be excavated over an area larger than necessary.

本発明は、このような従来の問題点に着目したもので、その目的は、掘削面積を極力少なくして、掘削作業に要する労力の削減と時間の短縮を可能にする山留壁構造を提供することである。   The present invention focuses on such conventional problems, and its purpose is to provide a mountain wall structure that can reduce the labor and time required for excavation work by reducing the excavation area as much as possible. It is to be.

本発明の第１の特徴構成は、山留面に沿う複数本の親杭と横矢板から構成される山留壁が、前記親杭間にわたって横方向に配設された横材と、その横材と山側土壌の間に配設されたアンカー部材により土圧に対抗するように支持されている山留壁構造であって、前記横材が、前記山留面に沿う方向視において、前記親杭の厚み方向で重複するように配置されて前記親杭に固定されているところにある。   A first characteristic configuration of the present invention is a cross member in which a mountain retaining wall composed of a plurality of parent piles and a lateral sheet pile along the mountain retaining surface is disposed in a lateral direction between the parent piles, A retaining wall structure that is supported by an anchor member disposed between a timber and a mountain-side soil so as to counteract earth pressure, wherein the cross member is viewed from a direction along the retaining surface in the direction of the parent. It exists in the place arrange | positioned so that it may overlap in the thickness direction of a pile, and is fixed to the said parent pile.

本発明の第１の特徴構成によれば、山留壁を支持する横材が、山留面に沿う方向視において、山留壁を構成する親杭の厚み方向で重複するように配置されて親杭に固定されているので、親杭の掘削部側の面から突出する横材の突出量は、少なくとも親杭への重複分だけ少なくなる。
したがって、掘削を続ける場合には、横材があまり掘削作業の邪魔になることもなく、掘削作業を容易に続行することができ、また、掘削部に地下構造物を構築する場合には、親杭側に比較的近接して地下構造物を構築することができる。
その結果、掘削面積を極力少なくして、掘削作業に要する労力の削減と時間の短縮を図ることができる。 According to the first characteristic configuration of the present invention, the cross member supporting the mountain retaining wall is arranged so as to overlap in the thickness direction of the parent pile constituting the mountain retaining wall in the direction view along the mountain retaining surface. Since it is being fixed to the parent pile, the protrusion amount of the cross member protruding from the surface on the excavation part side of the parent pile is reduced by at least the overlapping amount to the parent pile.
Therefore, when continuing the excavation, the cross member does not interfere with the excavation work so much that the excavation work can be easily continued, and when the underground structure is constructed in the excavation part, An underground structure can be constructed relatively close to the pile side.
As a result, the excavation area can be reduced as much as possible to reduce the labor and time required for excavation work.

本発明の第２の特徴構成は、前記親杭が型鋼で構成され、前記横材が鉄筋コンクリートで構成されているところにある。   The 2nd characteristic structure of this invention exists in the place where the said main pile is comprised by the shape steel, and the said cross member is comprised by the reinforced concrete.

本発明の第２の特徴構成によれば、親杭が型鋼で構成されているので、例えば、市販の型鋼を使用することができ、また、横材が鉄筋コンクリートで構成されているので、横材として必要な強度や剛性を確保することができ、アンカー部材に作用する土圧対抗力を確実に受け止めて、土圧による土留壁の倒壊を確実に防止することができる。   According to the second characteristic configuration of the present invention, since the main pile is made of a steel mold, for example, a commercially available steel mold can be used, and the cross bar is made of reinforced concrete. As a result, the necessary strength and rigidity can be ensured, and the earth pressure resisting force acting on the anchor member can be reliably received to prevent the earth retaining wall from collapsing due to the earth pressure.

本発明の第３の特徴構成は、前記横材が、前記親杭を山留面に沿って建て込んだ後に、その親杭間に配筋してコンクリートを打設した現場打ち鉄筋コンクリートで構成されているところにある。   According to a third characteristic configuration of the present invention, the cross member is made of a cast-in-place reinforced concrete in which the parent pile is built along the mountain retaining surface, and then a concrete is placed between the parent piles. There is.

本発明の第３の特徴構成によれば、前記横材が、親杭を山留面に沿って建て込んだ後に、その親杭間に配筋してコンクリートを打設した現場打ち鉄筋コンクリートで構成されているので、例えば、鉄筋コンクリート製の横材を工場などで予め製作して現場へ搬入する場合のように、比較的長くて重量のある横材をいちいち現場へ搬入する必要がなく、横材の製作から組み付けまでを現場において一挙に行うことができる。   According to the third characteristic configuration of the present invention, the cross member is composed of a cast-in-place reinforced concrete in which the parent pile is built along the mountain retaining surface and then placed between the parent piles to place concrete. For example, it is not necessary to carry a relatively long and heavy cross member to the work site, as in the case of producing a reinforced concrete cross member in advance in a factory and carrying it to the work site. From production to assembly can be performed at once on site.

本発明の第４の特徴構成は、前記親杭と横材が、それぞれ型鋼で構成されているところにある。   The 4th characteristic structure of this invention exists in the place where the said main pile and a cross member are each comprised with the shape steel.

本発明の第４の特徴構成によれば、親杭と横材が、それぞれ型鋼で構成されているので、現場へ搬入する手間は要るものの、現場打ち鉄筋コンクリートのような養生期間が不用で、土留壁構造の構築作業を短期間のうちに行うことができる。   According to the fourth characteristic configuration of the present invention, since the main pile and the cross member are each made of mold steel, it is unnecessary to carry in to the site, but a curing period such as on-site reinforced concrete is unnecessary, The construction work of the retaining wall structure can be performed in a short period of time.

本発明の第５の特徴構成は、前記横材が、前記山留面に沿う方向視において、上方ほど山側へ後退する傾斜受け面を備え、その傾斜受け面により前記アンカー部材に作用する土圧対抗力を受け止めるように構成されているところにある。   According to a fifth characteristic configuration of the present invention, the cross member includes an inclined receiving surface that recedes toward the mountain side as viewed in a direction along the mountain retaining surface, and the earth pressure acting on the anchor member by the inclined receiving surface. It is in the place where it is configured to receive the counter force.

本発明の第５の特徴構成によれば、前記横材が、山留面に沿う方向視において、上方ほど山側へ後退する傾斜受け面を備え、その傾斜受け面によりアンカー部材に作用する土圧対抗力を受け止めるように構成されているので、アンカー部材を横材側に取り付けるための部材も、親杭の掘削部側の面から大きく突出することがなく、掘削作業を容易に行うことができるとともに、掘削部に地下構造物を構築する場合には、より一層親杭側に近接させて地下構造物を構築することができ、掘削面積を一層少なくして、掘削作業に要する労力の削減と時間の短縮を更に図ることができる。   According to the fifth characteristic configuration of the present invention, the cross member includes an inclined receiving surface that recedes toward the mountain side upward as viewed in a direction along the mountain retaining surface, and earth pressure acting on the anchor member by the inclined receiving surface. Since it is comprised so that a counterforce may be received, the member for attaching an anchor member to the cross member side also does not protrude greatly from the surface of the excavation part side of a parent pile, and excavation work can be performed easily. At the same time, when constructing an underground structure in the excavation part, it is possible to construct the underground structure closer to the parent pile side, further reducing the excavation area and reducing the labor required for excavation work. The time can be further shortened.

本発明による山留壁構造の実施の形態を図面に基づいて説明する。
この山留壁構造は、例えば、地中に地下構造物を構築するため、土壌の一部を順次下方へ掘削して行く際、その掘削側への土壌の崩落を防ぐためのもので、図１および図２に示すように、山留壁１は、山留面Ｆに沿って土中に建て込んだ多数本の親杭２と、その親杭２間にわたって配設された多数枚の横矢板３により構成されている。
例えば、親杭２はＨ型鋼により、また、横矢板３は鋼矢板により構成されて、各横矢板３の左右端部が、Ｈ型鋼からなる親杭２の溝内に嵌入配置されていて、このような構成の山留壁１が、横材４とアンカー部材５によって山側からの土圧に対抗するように支持されている。 An embodiment of a mountain retaining wall structure according to the present invention will be described with reference to the drawings.
This mountain retaining wall structure is intended to prevent the collapse of soil to the excavation side when excavating part of the soil sequentially downward, for example, to construct an underground structure in the ground. As shown in FIG. 1 and FIG. 2, the mountain retaining wall 1 includes a large number of parent piles 2 built in the soil along the mountain retaining surface F, and a large number of horizontal piles disposed between the parent piles 2. It is composed of a sheet pile 3.
For example, the main pile 2 is made of H-shaped steel, and the horizontal sheet pile 3 is made of a steel sheet pile, and the left and right ends of each horizontal sheet pile 3 are fitted and arranged in the groove of the parent pile 2 made of H-shaped steel, The mountain retaining wall 1 having such a configuration is supported by the cross member 4 and the anchor member 5 so as to oppose earth pressure from the mountain side.

山留壁１を支持する横材４は、通常「腹起し」と称される横架材に相当し、多数本の鉄筋４ａにより補強された鉄筋コンクリート、つまり、後に詳しく説明するように、現場打ちによる鉄筋コンクリートにより構成されている。
その横材４は、図２に示すように、山留面Ｆに沿う方向視において、通常「根切り」と称される掘削部Ｅ側の面が親杭２の面とほぼ面一になる状態で、親杭２の厚み方向で完全に重複し、かつ、その一部が山側へ突出する状態に構成され、親杭２と一体化されて固定されている。さらに、その横材４には、山留面Ｆに沿う方向視において、上方ほど山側へ後退する傾斜受け面６が適当な間隔を置いて形成されている。 The horizontal member 4 that supports the mountain retaining wall 1 corresponds to a horizontal member that is usually referred to as “raising”, and is reinforced concrete reinforced by a large number of reinforcing bars 4a, that is, as described in detail later, It is made of reinforced concrete by hammering.
As shown in FIG. 2, the cross member 4 has a surface on the excavation part E side generally called “root cutting” substantially flush with the surface of the parent pile 2 in the direction along the mountain retaining surface F. In the state, it is configured to be completely overlapped in the thickness direction of the parent pile 2 and a part thereof protrudes to the mountain side, and is integrated with the parent pile 2 and fixed. Further, the transverse member 4 is formed with an inclined receiving surface 6 that recedes toward the mountain side as viewed in the direction along the mountain retaining surface F at an appropriate interval.

アンカー部材５は、例えば、アースアンカーと称される従来公知のもので、その先端部が、斜め下方に向けて山側土壌内に打ち込まれて固定され、その基端部が、横材４を貫通して傾斜受け面６から突出されている。
そして、そのアンカー部材５の突出基端部に締め付け用のナット部材７ａが螺合され、かつ、そのナット部材７ａが、座金７ｂを介して横材４の傾斜受け面６により支持されていて、アンカー部材５に作用する土圧対抗力が、横材４の傾斜受け面６により受け止められるように構成されている。 The anchor member 5 is a conventionally known anchor member called, for example, an earth anchor, and its distal end portion is fixed by being driven obliquely downward into the mountain side soil, and its proximal end portion penetrates the cross member 4. Then, it protrudes from the inclined receiving surface 6.
And, the nut member 7a for tightening is screwed to the protruding base end portion of the anchor member 5, and the nut member 7a is supported by the inclined receiving surface 6 of the cross member 4 through the washer 7b. The earth pressure resisting force acting on the anchor member 5 is configured to be received by the inclined receiving surface 6 of the cross member 4.

つぎに、この山留壁構造を構築する手順について説明する。
まず、図３や図４の（イ）に示すように、Ｈ型鋼の溝が山留面Ｆに沿うようにして、その山留面Ｆに沿って必要な本数の親杭２を土中に建て込み、その後、親杭２の表側、つまり、掘削部Ｅ側を掘削するとともに、親杭２の裏側も一部掘削する。
そして、横材４を構築した後に、各親杭２間に横矢板３を配設して親杭２の裏側を埋め戻す。さらに、横材４の下方を掘削して各親杭２間に横矢板３を配置して土壌の崩落を防止し、この作業を順次繰り返して下方へ掘削して行き、所定の深さまで掘削する。 Next, a procedure for constructing this mountain wall structure will be described.
First, as shown in FIG. 3 and FIG. 4 (a), the groove of the H-shaped steel extends along the mountain retaining surface F, and the necessary number of parent piles 2 along the mountain retaining surface F are placed in the soil. After erection, the front side of the parent pile 2, that is, the excavation part E side is excavated, and the back side of the parent pile 2 is also partially excavated.
And after constructing the cross member 4, the horizontal sheet pile 3 is arrange | positioned between each parent pile 2, and the back side of the parent pile 2 is backfilled. Further, the lower side of the cross member 4 is excavated and the horizontal sheet piles 3 are arranged between the parent piles 2 to prevent the soil from collapsing, and this operation is sequentially repeated to excavate downward to excavate to a predetermined depth. .

横材４の構築に際しては、各親杭２間に鉄筋４ａを配筋し、好ましくは、各鉄筋４ａの端部を親杭２に穿設した配筋用孔２ａ内に通して固定する。
その後、少なくとも掘削部Ｅ側に主型枠８ａと傾斜受け面６を形成するための補助型枠８ｂを組み付け、必要な場合には山側にも型枠を組み付け、かつ、アンカー部材５を山側土壌内に打ち込んで、型枠８ａ、８ｂ内に生コンクリート４ｂを打設して養生する。
アンカー部材５は、横材４にアンカー部材５が通る穴を開けておき、生コンクリート４ｂが硬化した後に挿入して締め付けてもよい。
生コンクリート４ｂが硬化した後、型枠８ａ，８ｂを外し、図４の（ロ）に示すように、アンカー部材５の突出基端部に座金７ｂを挿通して締め付け用のナット部材７ａを螺合し、そのナット部材７ａ締め付けて、アンカー部材５に作用する土圧対抗力が、傾斜受け面６により受け止められるように設定する。 When constructing the cross member 4, reinforcing bars 4 a are arranged between the parent piles 2, and preferably, the end portions of the reinforcing bars 4 a are passed through the reinforcing hole 2 a drilled in the parent pile 2 and fixed.
Thereafter, at least the main formwork 8a and the auxiliary formwork 8b for forming the inclined receiving surface 6 are assembled on the excavation part E side. If necessary, the formwork is also assembled on the mountain side, and the anchor member 5 is attached to the mountainside soil. It is driven in and the ready-mixed concrete 4b is placed in the molds 8a and 8b for curing.
The anchor member 5 may be inserted and tightened after a hole through which the anchor member 5 passes is formed in the cross member 4 and the ready-mixed concrete 4b is cured.
After the ready-mixed concrete 4b is hardened, the molds 8a and 8b are removed, and as shown in FIG. 4B, the washer 7b is inserted into the protruding base end of the anchor member 5 and the nut member 7a for tightening is screwed. In addition, the nut member 7 a is tightened so that the earth pressure resistance acting on the anchor member 5 is received by the inclined receiving surface 6.

このようにして山留壁１を構築し、かつ、その山留壁１を横材４とアンカー部材５により土圧に対抗するように支持することで、山側からの土壌の崩落が確実に防止される。
その後、さらに掘削部Ｅを掘削することになるが、上述したように、山留面Ｆに沿う方向視において、横材４の掘削部Ｅ側の面が親杭２の面とほぼ面一となり、さらに、アンカー部材５に螺合するナット部材７ａも横材４の掘削部Ｅ側の面から大きく突出することがないので、その後の掘削作業を容易に行うことができる。
言い換えると、図５に示すように、掘削部Ｅに建屋の地下構造物Ｓなどを構築する場合、山留壁１の壁面ぎりぎりにまで地下構造物Ｓを構築することができるのであり、したがって、掘削部Ｅの掘削面積を必要最小限にとどめることができる。 The mountain retaining wall 1 is constructed in this way, and the mountain retaining wall 1 is supported by the cross member 4 and the anchor member 5 so as to oppose the earth pressure, so that the collapse of the soil from the mountain side is surely prevented. Is done.
Thereafter, the excavation part E will be further excavated. As described above, the surface of the cross member 4 on the excavation part E side is substantially flush with the surface of the parent pile 2 in the direction along the mountain retaining surface F. Furthermore, since the nut member 7a screwed into the anchor member 5 does not protrude greatly from the surface of the cross member 4 on the excavation part E side, the subsequent excavation work can be easily performed.
In other words, as shown in FIG. 5, when building the underground structure S of the building or the like in the excavation part E, the underground structure S can be built up to the limit of the wall surface of the mountain retaining wall 1. The excavation area of the excavation part E can be minimized.

〔別実施形態〕
（１）先の実施形態では、山留壁１を支持する横材４を現場打ちによる鉄筋コンクリートで構成した例を示したが、鉄筋コンクリート製の横材４を工場などで予め製作しておいて現場へ搬入し、現場において親杭２に固定するように構成することもできる。
また、横材４は特に鉄筋コンクリート製に限るものではなく、図６に示すように、例えば、横材４を親杭２と同じＨ型鋼で構成し、山留面Ｆに沿う方向視において、親杭２の厚み方向で完全に一致する状態に重複させて、図外のボルト・ナットまたは溶接により親杭２に固定して実施することもできる。
その場合、必要に応じて、傾斜受け面６を有する金属製ブロック９を配置し、アンカー部材５の突出基端部に螺合されるナット部材７ａを傾斜受け面６に当接するように締め付けて実施することができる。 [Another embodiment]
(1) In the previous embodiment, an example in which the cross member 4 that supports the mountain retaining wall 1 is made of reinforced concrete by on-site casting has been shown. However, the cross member 4 made of reinforced concrete is manufactured in advance in a factory or the like. It can also be carried in and fixed to the parent pile 2 at the site.
Further, the cross member 4 is not particularly limited to reinforced concrete, and as shown in FIG. 6, for example, the cross member 4 is made of the same H-shaped steel as the parent pile 2, and in the direction along the mountain retaining surface F, It can also be carried out by overlapping the pile 2 in a state that completely coincides with the thickness direction of the pile 2 and fixing it to the parent pile 2 by bolts / nuts or welding not shown.
In that case, if necessary, a metal block 9 having an inclined receiving surface 6 is disposed, and a nut member 7a screwed into the protruding base end portion of the anchor member 5 is tightened so as to contact the inclined receiving surface 6. Can be implemented.

（２）先の実施形態では、親杭２をＨ型鋼で構成した例を示したが、Ｈ型以外の各種の型鋼で構成できるのはもちろん、例えば、鉄筋コンクリート製の杭を親杭２として使用することもでき、同様に、横矢板３に関しても、特に鋼矢板に限るものではなく、例えば、木製の板をはじめとして各種の板材で構成することができる。
また、山留面Ｆに沿う方向視において、横材４の掘削部Ｅ側の面が、親杭２の掘削部Ｅ側の面とほぼ面一になるように構成した例を示したが、横材４の掘削部Ｅ側の面が、親杭２の掘削部Ｅ側の面から多少突出するように構成することもできる。 (2) In the previous embodiment, although the example which comprised the main pile 2 with the H-shaped steel was shown, of course, it can comprise with various steel shapes other than H type, for example, the pile made from a reinforced concrete is used as the main pile 2 Similarly, the horizontal sheet pile 3 is not limited to the steel sheet pile, and can be composed of various plate materials including a wooden plate.
Moreover, in the direction view along the mountain retaining surface F, the surface on the excavation part E side of the cross member 4 was shown to be substantially flush with the surface of the parent pile 2 on the excavation part E side. The surface of the cross member 4 on the excavation part E side can also be configured to protrude somewhat from the surface of the parent pile 2 on the excavation part E side.

山留壁構造の斜視図Perspective view of Yamadome wall structure 山留壁構造の縦断側面図Vertical side view of Yamadome wall structure 山留壁構造の構築過程を示す縦断側面図Longitudinal side view showing the process of construction 山留壁構造の構築過程を示す斜視図Perspective view showing the construction process of the Yamadome wall structure 山留壁構造の縦断側面図Vertical side view of Yamadome wall structure 別の実施形態による山留壁構造の縦断側面図Longitudinal side view of a mountain wall structure according to another embodiment

符号の説明Explanation of symbols

１ 山留壁
２ 親杭
３ 横矢板
４ 横材
５ アンカー部材
６ 傾斜受け面
Ｆ 山留面 DESCRIPTION OF SYMBOLS 1 Yamadome wall 2 Parent pile 3 Yoko sheet pile 4 Cross member 5 Anchor member 6 Inclined receiving surface F Yamadome surface

Claims (5)

山留面に沿う複数本の親杭と横矢板から構成される山留壁が、前記親杭間にわたって横方向に配設された横材と、その横材と山側土壌の間に配設されたアンカー部材により土圧に対抗するように支持されている山留壁構造であって、
前記横材が、前記山留面に沿う方向視において、前記親杭の厚み方向で重複するように配置されて前記親杭に固定されている山留壁構造。 A mountain retaining wall composed of a plurality of parent piles and cross-sheet piles along the mountain retaining surface is disposed between the transverse members arranged in the transverse direction across the parent piles, and between the transverse members and the mountain side soil. A retaining wall structure supported by an anchor member to resist earth pressure,
A mountain retaining wall structure in which the cross member is arranged so as to overlap in the thickness direction of the parent pile in a direction view along the mountain retaining surface and is fixed to the parent pile. 前記親杭が型鋼で構成され、前記横材が鉄筋コンクリートで構成されている請求項１に記載の山留壁構造。   The mountain retaining wall structure according to claim 1, wherein the parent pile is made of steel and the cross member is made of reinforced concrete. 前記横材が、前記親杭を山留面に沿って建て込んだ後に、その親杭間に配筋してコンクリートを打設した現場打ち鉄筋コンクリートで構成されている請求項２に記載の山留壁構造。   The pile according to claim 2, wherein the cross member is composed of a cast-in-place reinforced concrete in which the parent pile is built along the mountain retaining surface, and then a concrete is placed by placing a bar between the parent piles. Wall structure. 前記親杭と横材が、それぞれ型鋼で構成されている請求項１に記載の山留壁構造。   The mountain retaining wall structure according to claim 1, wherein each of the parent pile and the cross member is made of steel. 前記横材が、前記山留面に沿う方向視において、上方ほど山側へ後退する傾斜受け面を備え、その傾斜受け面により前記アンカー部材に作用する土圧対抗力を受け止めるように構成されている請求項１〜４のいずれか１項に記載の山留壁構造。   The cross member is provided with an inclined receiving surface that recedes toward the mountain side as viewed upward along the mountain retaining surface, and is configured to receive an earth pressure resistance acting on the anchor member by the inclined receiving surface. The mountain retaining wall structure according to any one of claims 1 to 4.
JP2004010583A 2004-01-19 2004-01-19 Yamadome wall structure Expired - Fee Related JP3805342B2 (en)

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