JP2506978Y2 - Synthetic retaining wall - Google Patents
Synthetic retaining wallInfo
- Publication number
- JP2506978Y2 JP2506978Y2 JP548493U JP548493U JP2506978Y2 JP 2506978 Y2 JP2506978 Y2 JP 2506978Y2 JP 548493 U JP548493 U JP 548493U JP 548493 U JP548493 U JP 548493U JP 2506978 Y2 JP2506978 Y2 JP 2506978Y2
- Authority
- JP
- Japan
- Prior art keywords
- retaining wall
- concrete
- cement
- synthetic
- shaped steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、大深度掘削時における
山留めを行う為の山留め壁の改良に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvement of a mountain retaining wall for retaining a mountain during deep excavation.
【０００２】[0002]
【従来の技術】従来の山留め用のＲＣ連壁は、応力の最
大となる部分に適合した厚さの断面で地表から掘削して
行き、全体を同じ厚さに構成していた。また、応力度の
小さい部位の断面形状を箱状のパッキンで小さく構成す
るものも提案されていた。2. Description of the Related Art Conventional RC retaining walls for mountain retaining have been constructed to have the same thickness by excavating from the ground with a cross section having a thickness suitable for a portion where the stress is maximum. In addition, it has been proposed that the cross-sectional shape of a portion having a low stress level is made small by a box-shaped packing.
【０００３】[0003]
【考案が解決しようとする課題】しかし、上述のように
従来の山留め壁の場合は、壁断面を全て均一に構成した
場合、使用するコンクリートの量が過大となってしま
う。また、壁断面を応力に合わせて変える場合、掘削作
業が困難であると云う欠点が存在した。更に、壁穴は均
一断面に掘削し、コンクリート打設時に箱状のパッキン
でコンクリートの断面を変化させるものにあっては、コ
ンクリート打設時の手数が大変で実用的ではなかった。
更にまた、増設や地下道を連結する場合には、打設した
コンクリートを解体しなければならず、全体がＲＣでは
解体作業が容易ではなかった。However, in the case of the conventional mountain retaining wall as described above, the amount of concrete to be used becomes too large when the wall cross section is entirely uniform. Also, there is a drawback that the excavation work is difficult when the wall cross section is changed according to the stress. Further, in the case where the wall hole is excavated in a uniform cross section and the cross section of the concrete is changed by the box-shaped packing at the time of pouring concrete, the time and effort for pouring the concrete are great and not practical.
Furthermore, when adding or connecting an underground passage, the placed concrete had to be dismantled, and the whole RC was not easy to dismantle.
【０００４】本考案の目的は、これら従来の山留め壁の
問題点に鑑み、コンクリートの使用量が適切で、製造作
業の容易な合成山留め壁を提供することにある。An object of the present invention is to provide a synthetic mountain retaining wall which has an appropriate amount of concrete and is easy to manufacture in view of these problems of the conventional mountain retaining walls.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本考案の合成山留め壁は、鉄筋を縦横に組合せて構
成した鉄筋籠と、Ｈ型鋼と、コンクリートと、セメント
・ベントナイト混合物とから成り、山留め壁の下端部分
を鉄筋籠とコンクリートで構成し、上端部分をＨ型鋼と
セメント・ベントナイト混合物とから構成したことを特
徴とする。In order to achieve the above object, the synthetic mountain retaining wall of the present invention comprises a rebar cage formed by vertically and horizontally combining rebars, an H-shaped steel, concrete, and a cement / bentonite mixture. It is characterized in that the lower end portion of the mountain retaining wall is composed of a reinforced cage and concrete, and the upper end portion is composed of H-shaped steel and a cement-bentonite mixture.
【０００６】[0006]
【作用】本考案に係る合成山留め壁では、下端部分を鉄
筋籠とコンクリートで構成し、上端部分をＨ型鋼とセメ
ント・ベントナイト混合物とから構成したので、剪断応
力、曲げモーメントに対応した断面構造とする事ができ
る。In the synthetic earth retaining wall according to the present invention, the lower end portion is composed of the rebar cage and the concrete, and the upper end portion is composed of the H-shaped steel and the cement / bentonite mixture, so that the sectional structure corresponding to the shear stress and bending moment can be obtained. You can do it.
【０００７】[0007]
【実施例】以下、本考案の実施例について、図面を参照
しつつ説明する。図１は本考案の合成山留め壁の一実施
例を示す一部切欠き側面図、図２は、図１のＡ−Ａ線縦
断面図、図３は図１のＢ−Ｂ線縦断面図である。Embodiments of the present invention will be described below with reference to the drawings. 1 is a partially cutaway side view showing an embodiment of the synthetic mountain retaining wall of the present invention, FIG. 2 is a vertical sectional view taken along line AA of FIG. 1, and FIG. 3 is a vertical sectional view taken along line BB of FIG. Is.
【０００８】ここで、合成山留め壁１０は、鉄筋を縦横
に組合わせて構成した鉄筋籠１１と、Ｈ型鋼１２と、コ
ンクリート１３と、セメント・ベントナイト混合物１４
とから成り、山留め壁の下端部分１０ａを鉄筋籠１１と
コンクリート１３で構成し、上端部分１０ｂをＨ型鋼１
２とセメント・ベントナイト混合物１４とから構成して
いる。Here, the synthetic retaining wall 10 is composed of a reinforcing bar cage 11 composed of longitudinally and laterally combined reinforcing bars, an H-shaped steel 12, concrete 13, and a cement-bentonite mixture 14.
And the lower end portion 10a of the mountain retaining wall is composed of the reinforcing bar cage 11 and the concrete 13, and the upper end portion 10b is the H-shaped steel 1
2 and cement / bentonite mixture 14.
【０００９】本考案の合成山留め壁は、掘削した底から
所定の高さ１０ａまで鉄筋籠１１とコンクリート１３に
よりＲＣ連続壁とし、それから上部１０ｂをＨ型鋼１２
とセメント・ベントナイト混合物１４とから構成する。
したがって、コストダウンを図る事ができる。また、施
工後に増築工事等で一部解体する必要がある場合、ＲＣ
に比べてコスト及び工期が遙かに有利である。The synthetic earth retaining wall of the present invention is an RC continuous wall from the excavated bottom to a predetermined height 10a by means of a rebar cage 11 and concrete 13, and then an upper portion 10b is made of H-shaped steel 12.
And cement / bentonite mixture 14.
Therefore, the cost can be reduced. In addition, if it is necessary to partially dismantle due to extension work after construction, RC
Compared with, the cost and construction period are much more advantageous.
【００１０】次に、本考案の合成山留め壁の製造方法に
ついて説明する。先ず、最大応力部分の応力度に合わせ
て壁の断面形状を算出し、地表から掘削していく。掘削
した穴１５に図５に示すように、鉄筋籠１１の上にＨ型
鋼１２が組立フレーム１６を介してボルト１７で予め固
定したものをセットする。Next, a method of manufacturing the synthetic retaining wall of the present invention will be described. First, the cross-sectional shape of the wall is calculated according to the stress level of the maximum stress portion, and excavation is performed from the ground surface. As shown in FIG. 5, the H-shaped steel 12 having the H-shaped steel 12 fixed in advance by the bolts 17 via the assembly frame 16 is set in the drilled hole 15 as shown in FIG.
【００１１】鉄筋籠１１及びＨ型鋼１２をセットした穴
１５（図６参照）に、所定の高さ（１０ａ）まで砂、砂
利とと共にセメントを打設し、コンクリート１３とす
る。コンクリートが硬化した後、穴１５内に泥水で溶い
たセメントを注入し、セメント・ベントナイト混合物１
４とする（１０ｂ）。In the hole 15 (see FIG. 6) in which the rebar cage 11 and the H-shaped steel 12 are set, cement is poured together with sand and gravel to a predetermined height (10a) to obtain concrete 13. After the concrete hardens, cement dissolved in muddy water is injected into the hole 15 to mix the cement and bentonite 1
4 (10b).
【００１２】この様に構成した合成山留め壁１０は、製
造コストが低廉であると共に、山留め壁を施工後、何等
かの設計変更により一部を解体しなければならない場
合、セメント・ベントナイト混合物１４部分を容易に撤
去する事ができる。The synthetic earth retaining wall 10 thus constructed has a low manufacturing cost, and when the earth retaining wall must be partially disassembled by some design change after the construction, the cement / bentonite mixture 14 parts Can be easily removed.
【００１３】[0013]
【考案の効果】以上説明したように、本考案の合成山留
め壁では、鉄筋を縦横に組合わせて構成した鉄筋籠と、
Ｈ型鋼と、コンクリートと、セメント・ベントナイト混
合物とから成り、山留め壁の下端部分を鉄筋籠とコンク
リートで構成し、上端部分をＨ型鋼とセメント・ベント
ナイト混合物とから構成ので、夫々の部位に対応した剪
断応力、曲げモーメントに耐える事ができる。したがっ
て、材料の経済的利用を図る事ができる。また、山留め
壁の施工後に増設や接合のために一部解体する場合、セ
メント・ベントナイト混合物部分は、容易に解体でき
る。[Effects of the Invention] As described above, in the synthetic mountain retaining wall of the present invention, a reinforcing bar cage composed of vertically and horizontally combined reinforcing bars,
It consists of H-section steel, concrete, and cement / bentonite mixture. The bottom end of the retaining wall is composed of reinforced cage and concrete, and the top end is composed of H-section steel and cement / bentonite mixture, so that it corresponds to each part. Can withstand shear stress and bending moment. Therefore, the material can be economically used. In addition, when part of the cement / bentonite mixture is dismantled for expansion or joining after construction of the retaining wall, the cement / bentonite mixture part can be easily dismantled.
【図１】本考案の合成山留め壁の一実施例を示す一部切
欠き側面図である。FIG. 1 is a partially cutaway side view showing an embodiment of a synthetic mountain retaining wall of the present invention.
【図２】図１のＡ−Ａ線縦断面図である。FIG. 2 is a vertical sectional view taken along the line AA of FIG.
【図３】図１のＢ−Ｂ線縦断面図である。3 is a vertical cross-sectional view taken along the line BB of FIG.
【図４】本考案の合成山留め壁の使用状態を示す一部切
欠き斜視図である。FIG. 4 is a partially cutaway perspective view showing a use state of the synthetic mountain retaining wall of the present invention.
【図５】本考案の合成山留め壁の打設前を示す要部拡大
側面図である。FIG. 5 is an enlarged side view of a main part of the synthetic mountain retaining wall of the present invention before being placed.
【図６】本考案の合成山留め壁の打設前の状態を示す要
部平面図である。FIG. 6 is a plan view of an essential part showing a state before placing the composite mountain retaining wall of the present invention.
１０ 合成山留め壁 １１ 鉄筋籠 １２ Ｈ型鋼 １３ コンクリート １４ セメント・ベントナイト混合物 １５ 穴 １６ 組立フレーム 10 Composite retaining wall 11 Reinforcing cage 12 H-shaped steel 13 Concrete 14 Cement / bentonite mixture 15 Holes 16 Assembly frame
Claims (1)
と、Ｈ型鋼と、コンクリートと、セメント・ベントナイ
ト混合物とから成り、山留め壁の下端部分を鉄筋籠とコ
ンクリートで構成し、上端部分をＨ型鋼とセメント・ベ
ントナイト混合物とから構成したことを特徴とする合成
山留め壁。1. A reinforcing bar basket composed of vertical and horizontal reinforcing bars combined together, H-shaped steel, concrete, and a cement / bentonite mixture, wherein the lower end of the retaining wall is composed of the reinforcing bar cage and concrete, and the upper end is A synthetic retaining wall characterized by being composed of H-section steel and a mixture of cement and bentonite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP548493U JP2506978Y2 (en) | 1993-02-19 | 1993-02-19 | Synthetic retaining wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP548493U JP2506978Y2 (en) | 1993-02-19 | 1993-02-19 | Synthetic retaining wall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0667536U JPH0667536U (en) | 1994-09-22 |
| JP2506978Y2 true JP2506978Y2 (en) | 1996-08-14 |
Family
ID=11612526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP548493U Expired - Lifetime JP2506978Y2 (en) | 1993-02-19 | 1993-02-19 | Synthetic retaining wall |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2506978Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7356362B2 (en) * | 2020-01-16 | 2023-10-04 | 株式会社熊谷組 | underground wall |
-
1993
- 1993-02-19 JP JP548493U patent/JP2506978Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0667536U (en) | 1994-09-22 |
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