JPH05140929A - Foundation of soil cement column train - Google Patents
Foundation of soil cement column trainInfo
- Publication number
- JPH05140929A JPH05140929A JP33255791A JP33255791A JPH05140929A JP H05140929 A JPH05140929 A JP H05140929A JP 33255791 A JP33255791 A JP 33255791A JP 33255791 A JP33255791 A JP 33255791A JP H05140929 A JPH05140929 A JP H05140929A
- Authority
- JP
- Japan
- Prior art keywords
- soil cement
- core material
- foundation
- soil
- wall
- 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.)
- Pending
Links
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】この発明は、壁内掘削時には土留
壁として機能し、壁内構造躯体の構築後はその基礎とな
るソイルセメント柱列基礎に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soil-cement column foundation that functions as a retaining wall when excavating in a wall and serves as a foundation after an in-wall structural frame is constructed.
【0002】[0002]
【従来の技術】従来のソイルセメント鋼管矢板壁Bは、
図10に示すように貧配合のソイルセント柱1´を連続
的に壁状に設け、その中に鋼管矢板2´を建て込んで造
成される。造成された連続壁は図11に示すように仮設
用土留壁の機能を持つ。2. Description of the Related Art A conventional soil cement steel pipe sheet pile wall B is
As shown in FIG. 10, poorly mixed soil cent columns 1 ′ are continuously provided in a wall shape, and a steel pipe sheet pile 2 ′ is built thereinto to be constructed. The constructed continuous wall has the function of a temporary retaining wall as shown in FIG.
【0003】[0003]
【発明が解決しようとする課題】このような従来のソイ
ルセメント鋼管矢板壁Bは、仮設用土留壁の機能しか有
しおらず、杭基礎として用いられるようなものではな
い。すなわち、従来のソイルセメント鋼管矢板壁は、貧
配合のソイルセメント柱1´の中に鋼管矢板2´を建て
込んだものであるため、仮にこれを杭基礎として用いた
場合、その先端部(下端部)においては鉛直荷重を支持
するために十分なソイルセメントの強度を有しておら
ず、さらに鋼管矢板2´とソイルセメントの付着強度が
十分でないため、鋼管矢板とソイルセメントが一体とな
って挙動せず、この結果、鉛直荷重が鋼管矢板からソイ
ルセメントさらには地盤へと伝達されず、杭として必要
な支持力を有効に得ることができない。The conventional soil cement steel pipe sheet pile wall B as described above has only the function of a temporary earth retaining wall and is not used as a pile foundation. That is, the conventional soil cement steel pipe sheet pile wall is one in which a steel pipe sheet pile 2'is built in a poorly mixed soil cement column 1 ', so if it is used as a pile foundation, its tip (lower end) Part) does not have sufficient strength of soil cement to support a vertical load, and since the adhesion strength between the steel pipe sheet pile 2'and the soil cement is not sufficient, the steel pipe sheet pile and the soil cement are integrated. It does not behave, and as a result, the vertical load is not transmitted from the steel pipe sheet pile to the soil cement and further to the ground, and it is not possible to effectively obtain the bearing capacity required for the pile.
【0004】本発明はこのような従来の問題に鑑みなさ
れたもので、壁内掘削時には土留壁として機能するとと
もに、最終的には構造躯体の杭基礎となるソイルセメン
ト柱列基礎の提供をその目的とする。The present invention has been made in view of such conventional problems, and provides a soil cement column foundation that functions as a retaining wall when excavating in a wall and finally becomes a pile foundation of a structural frame. To aim.
【0005】[0005]
【課題を解決するための手段】このため本発明は、各ソ
イルセメント柱の基礎部分たる下端部を、強度の高いソ
イルセメント等からなる根固め部とし、且つこの部分の
芯材とソイルセメント等との付着強度を高めることによ
り構造物の鉛直荷重が地盤に円滑に伝達されるようにす
るため、根固め部内の芯材部分に突起を設けたことをそ
の骨子とする。このような本発明の具体的な構成は以下
の通りである。Therefore, according to the present invention, the bottom end of each soil cement column, which is the basic part, is a root consolidation part made of high strength soil cement, and the core material and soil cement of this part. In order to ensure that the vertical load of the structure can be smoothly transmitted to the ground by increasing the adhesive strength with the structure, the skeleton is to provide a protrusion in the core material portion in the root consolidation portion. The specific configuration of the present invention as described above is as follows.
【0006】(1) 内部に芯材を有するソイルセメン
ト柱を地盤中に連続的に造成することにより構成される
連続壁であって、各ソイルセメント柱の下端部を、富配
合のソイルセメントまたは実質的なセメントミルク若し
くはセメントモルタルからなる根固め部とし、該根固め
部内に位置する芯材部分に突起を形成し、芯材をその突
起形成部分を介して前記根固め部に定着してなるソイル
セメント柱列基礎。(1) A continuous wall constructed by continuously forming soil cement columns having a core material inside in the ground, wherein the bottom end of each soil cement column is a soil-mixed soil cement or A root-hardening portion made of substantially cement milk or cement mortar, a protrusion is formed on a core material portion located in the root-solidifying portion, and the core material is fixed to the root-hardening portion via the protrusion forming portion. Soil cement column foundation.
【0007】(2) 上記(1)の構造において、芯材
が、根固め部内に位置する芯材部分と根固め部以外の任
意の芯材部分に突起を有しているソイルセメント柱列基
礎。(2) In the structure of (1) above, the soil cement column base has a core material having protrusions on the core material portion located inside the root consolidation portion and on any core material portion other than the root consolidation portion. ..
【0008】(3) 上記(1)または(2)の構造に
おいて、隣り合うソイルセメント柱の芯材どうしが、継
手により連結されているソイルセメント柱列基礎。(3) In the structure of (1) or (2) above, a soil cement column row foundation in which core materials of adjacent soil cement columns are connected by a joint.
【0009】[0009]
【作用】本発明を構成する連続壁は、その造成後、壁内
が掘削される際に土留壁として機能するとともに、壁内
構造躯体の構築後は、その基礎として機能する。すなわ
ち、本発明の構造では、各ソイルセメント柱の下端部
が、強度の高い富配合のソイルセメントまたは実質的な
セメントミルク若しくはセメントモルタルからなる根固
め部であり、且つこの根固め部の芯材部分には突起が形
成されているため、根固め部と芯材との付着強度が高
く、これにより構造躯体の鉛直荷重を芯材、根固め部、
地盤へと円滑に伝達させることができ、ソイルセメント
柱壁に先端支持機能、すなわち杭基礎としての機能を持
たせることができる。The continuous wall constituting the present invention functions as a retaining wall when the inside of the wall is excavated after its construction, and as a foundation after the construction of the in-wall structural frame. That is, in the structure of the present invention, the lower end of each soil cement column is a root-hardening portion made of high-strength soil cement or a substantial cement milk or cement mortar, and the core material of the root-hardening portion. Since the protrusion is formed in the part, the adhesion strength between the root consolidation part and the core material is high, which allows the vertical load of the structural body to be applied to the core material, the root consolidation part,
It can be smoothly transmitted to the ground, and the soil cement column wall can have a tip supporting function, that is, a function as a pile foundation.
【0010】また、ソイルセメント柱壁周面の杭基礎と
しての周面摩擦抵抗力を期待する場合には、根固め部だ
けでなく、それを期待する位置の芯材部分に突起を設
け、芯材とソイルセメントとの付着性を高めて一体化を
図ることにより、ソイルセメント柱壁周面での摩擦抵抗
力を得ることができる。この場合、突起付き芯材とソイ
ルセメントとの付着強度が、ソイルセメントと地盤との
摩擦抵抗力よりも大きくなるようにソイルセメントの強
度を設定する。また、本発明を構成する連続壁は、壁内
構造躯体の梁、床版と芯材を連結することにより、構造
躯体となる地下壁として用いることができる。In addition, when expecting a peripheral frictional resistance force as a pile foundation of the soil cement column wall peripheral surface, a protrusion is provided not only on the root consolidation portion but also on the core material portion at the position where it is expected. By increasing the adhesiveness between the material and the soil cement and integrating them, it is possible to obtain a frictional resistance force on the circumferential surface of the soil cement column wall. In this case, the strength of the soil cement is set so that the adhesion strength between the core material with protrusions and the soil cement is larger than the frictional resistance between the soil cement and the ground. Further, the continuous wall constituting the present invention can be used as an underground wall to be a structural skeleton by connecting the beams and floor slabs of the in-wall structural skeleton to the core material.
【0011】[0011]
【実施例】図1ないし図3は本発明の一実施例を示すも
ので、1はソイルセメント柱、2はこのソイルセメント
柱に建て込まれた芯材であり、ソイルセメント柱1は、
例えば図10に示すように連続的、すなわち隣り合うソ
イルセメント柱どうしが互いに接し、或いは一部重り合
うようにして造成され、連続壁Aを構成する。図1は、
土留壁としての連続壁A内を切梁3を用いて掘削した状
態を示している。図中、4は支持層(硬質地盤)であ
る。1 to 3 show an embodiment of the present invention, in which 1 is a soil cement column, 2 is a core material built in this soil cement column, and the soil cement column 1 is
For example, as shown in FIG. 10, continuous soil A, that is, adjacent soil cement columns contact each other or partially overlap each other to form a continuous wall A. Figure 1
It shows a state in which the inside of the continuous wall A serving as a retaining wall is excavated by using the girder 3. In the figure, 4 is a support layer (hard ground).
【0012】各ソイルセメント柱1は、図3に示すよう
に下端部が富配合のソイルセメントまたは実質的なセメ
ントミルク若しくはセメントモルタルにより根固め部1
00に構成され、さらに、この根固め部100内の芯材
部分の表面には多数の突起5が形成され、芯材2はこの
突起形成部分を介して根固め部100に定着されてい
る。As shown in FIG. 3, each soil cement pillar 1 has a root-hardening portion 1 made of soil cement whose bottom end is rich or substantially cement milk or cement mortar.
In addition, a large number of protrusions 5 are formed on the surface of the core material portion in the root consolidation portion 100, and the core material 2 is fixed to the root consolidation portion 100 via the protrusion formation portion.
【0013】この実施例では、突起5は芯材2の両面
(例えば、芯材が鋼管の場合にはその内外面)に形成さ
れている。このように突起5は、なるべく芯材の各面に
形成することが好ましいが、一部の面(例えば、芯材が
鋼管の場合にはその外面)にのみ形成することを排除す
るものではない。前記芯材2として最も一般的なものは
鋼管、特に鋼管矢板であるが、これに限定されるもので
はなく、形鋼等を用いてもよい。また、鋼管の場合に
は、角鋼管または角鋼管矢板を用いてもよい。さらに、
1つの連続壁を構成する複数のソイルセメント柱1にお
いて、異なる形状や構造の芯材を用いてもよい。通常、
芯材2は上記鋼管矢板(図10参照)のように隣り合う
ソイルセメント柱の芯材どうしが継手により互いに連結
されるものが用いられる。In this embodiment, the protrusions 5 are formed on both surfaces of the core material 2 (for example, the inner and outer surfaces of the core material when the core material is a steel pipe). As described above, it is preferable that the protrusions 5 are formed on each surface of the core material as much as possible, but it is not excluded that the protrusions 5 are formed only on a part of the surface (for example, the outer surface when the core material is a steel pipe). .. The most common core material 2 is a steel pipe, particularly a steel pipe sheet pile, but the core material 2 is not limited to this, and shaped steel or the like may be used. Further, in the case of a steel pipe, a square steel pipe or a square steel pipe sheet pile may be used. further,
Core materials having different shapes and structures may be used in the plurality of soil cement columns 1 forming one continuous wall. Normal,
As the core material 2, a material in which core materials of adjacent soil cement columns are connected to each other by a joint like the steel pipe sheet pile (see FIG. 10) is used.
【0014】図2は、連続壁A内を掘削後、壁内に構造
躯体6を構築した後の状態を示している。構造躯体6
は、その鉛直荷重が連続壁Aの芯材2に伝達されるよ
う、適当な手段(例えば、鉄筋)で芯材2に結合され
る。なお、この実施例では、構造躯体6に連続壁Aへの
オーバーハング部61を設け、構造躯体荷重が杭基礎と
しての連続壁Aに伝達されるようにしている。FIG. 2 shows a state after excavating the inside of the continuous wall A and after constructing the structural body 6 in the wall. Structural body 6
Is coupled to the core 2 by appropriate means (for example, reinforcing bars) so that the vertical load is transmitted to the core 2 of the continuous wall A. In this embodiment, the structural skeleton 6 is provided with the overhang portion 61 to the continuous wall A so that the structural skeleton load is transmitted to the continuous wall A as the pile foundation.
【0015】図7は上記構造躯体6と芯材との結合構造
例を示すもので、芯材とオーバーハング部については、
芯材2に適当な本数の鉄筋63を溶接62し、芯材2と
オーバーハング部61とを結合している。また、壁とな
る構造躯体6と芯材2との結合については、芯材2に結
合用金物64を溶接62し、この結合用金物64に鉄筋
63を溶接62して結合部としている。FIG. 7 shows an example of the joint structure of the structural body 6 and the core material. The core material and the overhang portion are
An appropriate number of reinforcing bars 63 are welded 62 to the core material 2 to connect the core material 2 and the overhang portion 61. Further, regarding the connection between the structural body 6 serving as a wall and the core material 2, the metal fitting 64 is welded 62 to the core material 2, and the reinforcing bar 63 is welded 62 to the metal fitting 64 to form a joint portion.
【0016】図8および図9は、連続壁Aを構造躯体と
なる地下壁と併用させる場合の構造例を示すもので、こ
の構造例では連続壁Aの壁内側のソイルセメントを除去
して、図9の拡大図に示すように芯材2に直接結合用金
物64を溶接62するとともに、この結合用金物64に
鉄筋63を溶接62し、梁または床版66を結合してい
る。また、壁内側には化粧モルタルまたはパネル65が
設けられる。8 and 9 show a structural example in which the continuous wall A is used together with an underground wall which is a structural body. In this structural example, the soil cement inside the wall of the continuous wall A is removed, As shown in the enlarged view of FIG. 9, the connecting metal piece 64 is directly welded 62 to the core material 2, the reinforcing bar 63 is welded 62 to the connecting metal piece 64, and the beam or floor slab 66 is connected. Further, a decorative mortar or panel 65 is provided inside the wall.
【0017】また、連続壁Aの杭基礎としての周面摩擦
抵抗力を期待する場合、例えば、支持層4の地盤強度が
不十分であるため周囲の支持基盤との間の周面摩擦抵抗
力を期待する場合には、根固め部100だけでなく、周
面摩擦抵抗力を期待する芯材2の他の部分にも図4に示
すような突起5を設け、芯材2とソイルセメントとの付
着性を高める。When anticipating the peripheral frictional resistance as a pile foundation of the continuous wall A, for example, the peripheral frictional resistance with the surrounding support base is insufficient because the ground strength of the support layer 4 is insufficient. In case of expecting, the protrusions 5 as shown in FIG. 4 are provided not only on the root consolidation portion 100 but also on other portions of the core material 2 which are expected to have frictional resistance against the peripheral surface, and the core material 2 and soil cement are Increase the adhesiveness of.
【0018】図5および図6は、それぞれ突起5が形成
された芯材2の断面形状を示したものであり、図5は芯
材の片面(鋼管の場合には外面)のみに突起5が形成さ
れた例、図6は芯材の両面(鋼管の場合には内外面)に
突起が形成された例である。このような突起付きの芯材
2は、例えば芯材が鋼管の場合には鋼管の周面にスパイ
ラル状の突起を設けることにより、或い所謂チェッカー
プレートを管状に成形することにより得ることができ
る。FIGS. 5 and 6 show the cross-sectional shape of the core material 2 on which the projections 5 are formed. FIG. 5 shows that the projections 5 are formed only on one surface (the outer surface in the case of a steel pipe) of the core material. The formed example, FIG. 6 is an example in which protrusions are formed on both surfaces (in the case of a steel pipe, inner and outer surfaces) of the core material. Such a core material 2 with protrusions can be obtained, for example, when the core material is a steel pipe, by providing a spiral protrusion on the peripheral surface of the steel pipe, or by forming a so-called checker plate into a tubular shape. ..
【0019】本発明を構成するソイルセメント柱1は、
セメントミルクを注入しながら地盤を掘削撹拌して造成
されるが、その下端部(根固め部)を掘削する際に、セ
メントミルクの注入量を貧配合から富配合に切り換え、
その部分を富配合のソイルセメントからなる、或いは実
質的にセメントミルクのみ(その部分の土をセメントミ
ルクで置換)からなる根固め部100とする。または、
下端部掘削の際に、貧配合のセメントミルクの注入から
セメントモルタルの注入に切換え、実質的にセメントモ
ルタルのみ(その部分の土をセメントモルタルで置換)
からなる根固め部100とする。そして、ソイルセメン
トが未硬化の状態で芯材2を挿入し、突起5が形成され
た下端部を根固め部100内に位置させる。The soil cement pillar 1 constituting the present invention is
It is created by excavating and stirring the ground while injecting cement milk, but when excavating the lower end part (root consolidation part), switch the injection amount of cement milk from poor mix to rich mix,
The portion is made into a root-hardening portion 100 which is made of soil-mixed soil cement, or substantially only cement milk (the soil of the portion is replaced with cement milk). Or
When excavating the lower end, switch from injection of poorly mixed cement milk to injection of cement mortar, and virtually only cement mortar (soil in that part is replaced with cement mortar)
The root consolidation section 100 is made of Then, the core material 2 is inserted with the soil cement in an uncured state, and the lower end portion on which the protrusion 5 is formed is positioned inside the root consolidation portion 100.
【0020】[0020]
【発明の効果】以上述べた本発明の構造によれば、各ソ
イルセメント柱の下端部が強度の高いソイルセメント等
からなる根固め部に構成され、且つ芯材の突起により根
固め部と芯材との付着強度が高いため、構造躯体の鉛直
荷重を芯材、根固め部、地盤へと円滑に伝達させること
ができ、ソイルセメント柱壁に先端支持機能、すなわち
杭基礎としての機能を持たせることができる。このた
め、本発明を構成する連続壁は、壁内掘削時に土留壁と
して機能するだけでなく、壁内構造躯体の構築後はその
基礎として機能するものであり、構造物構築における使
用材料の有効利用と基礎工事の能率化を図ることができ
る。また、芯材下端部だけでなく、杭基礎としての周面
摩擦抵抗力を期待する箇所の芯材部分に突起を設け、芯
材とソイルセメントとの付着性を高めて一体化を図るこ
とにより、ソイルセメント柱壁周面での摩擦抵抗力を確
実に得ることができ、杭基礎としてのより高い機能を得
ることができる。According to the structure of the present invention described above, the lower end portion of each soil cement column is configured as a root consolidation portion made of high strength soil cement or the like, and the protrusions of the core material form the root consolidation portion and the core. Due to its high adhesion strength with the material, it can smoothly transfer the vertical load of the structural frame to the core material, root consolidation part, and the ground, and has the tip support function on the soil cement column wall, that is, the function as a pile foundation. Can be made. Therefore, the continuous wall that constitutes the present invention not only functions as a retaining wall during excavation in the wall, but also functions as the foundation after the construction of the in-wall structural frame, and is effective for the materials used in the construction of the structure. Utilization and efficiency of foundation work can be improved. Moreover, not only the lower end of the core material, but also the core material portion where the peripheral frictional resistance of the pile foundation is expected is provided to increase the adhesiveness between the core material and the soil cement to achieve integration. , It is possible to reliably obtain the frictional resistance force on the soil cement column wall peripheral surface, and to obtain a higher function as a pile foundation.
【図1】本発明のソイルセメント柱列基礎の一実施例を
示すもので、土留壁として用いられている状態を示す縦
断面図FIG. 1 is a vertical cross-sectional view showing an embodiment of a soil cement column foundation of the present invention, showing a state where it is used as a retaining wall.
【図2】図1に示すソイルセメント柱列基礎の、壁内構
造躯体の構築後の状態を示す縦断面図FIG. 2 is a vertical cross-sectional view showing the state of the soil-cement column foundation shown in FIG. 1 after construction of a structural body in a wall.
【図3】図1のX部の部分拡大縦断面図FIG. 3 is a partially enlarged vertical sectional view of a portion X in FIG.
【図4】図3のY部の部分拡大縦断面図FIG. 4 is a partially enlarged vertical sectional view of a Y portion of FIG.
【図5】突起を有する芯材の一例を示す縦断面図FIG. 5 is a vertical cross-sectional view showing an example of a core material having protrusions.
【図6】突起を有する芯材の他の例を示す縦断面図FIG. 6 is a vertical cross-sectional view showing another example of a core material having protrusions.
【図7】オーバーハング部と芯材との結合構造および構
造躯体と芯材との結合構造の一例を示す縦断面図FIG. 7 is a vertical cross-sectional view showing an example of a joint structure between an overhang portion and a core material and a joint structure between a structural body and a core material.
【図8】芯材と地下壁とした場合の芯材と梁または床版
との結合構造の一例を示す縦断面図FIG. 8 is a vertical cross-sectional view showing an example of a joint structure between a core material and a beam or a floor slab when the core material and an underground wall are used.
【図9】図8のZ部の部分拡大縦断面図9 is a partially enlarged vertical sectional view of a Z part in FIG.
【図10】従来のソイルセメント鋼管矢板土留壁の水平
断面図FIG. 10 is a horizontal sectional view of a conventional soil cement steel pipe sheet pile retaining wall.
【図11】従来のソイルセメント鋼管矢板土留壁の縦断
面図FIG. 11 is a vertical sectional view of a conventional soil cement steel pipe sheet pile retaining wall.
【符号の簡単な説明】1…ソイルセメント柱、2…芯
材、4…支持層、5…突起、6…構造躯体、61…オー
バーハング部、100…根固め部、A…連続壁、62…
溶接、63…鉄筋、64…結合用金物、65…化粧モル
タル又はパネル、66…梁又は床版[Short description of reference numeral] 1 ... Soil cement column, 2 ... Core material, 4 ... Support layer, 5 ... Projection, 6 ... Structural skeleton, 61 ... Overhang portion, 100 ... Rooting portion, A ... Continuous wall, 62 …
Welding, 63 ... Reinforcing bar, 64 ... Joining hardware, 65 ... Decorative mortar or panel, 66 ... Beam or floor slab
Claims (3)
地盤中に連続的に造成することにより構成される連続壁
であって、各ソイルセメント柱の下端部を、富配合のソ
イルセメントまたは実質的なセメントミルク若しくはセ
メントモルタルからなる根固め部とし、該根固め部内に
位置する芯材部分に突起を形成し、芯材をその突起形成
部分を介して前記根固め部に定着してなるソイルセメン
ト柱列基礎。1. A continuous wall formed by continuously forming soil cement columns having a core material in the ground, wherein the bottom end of each soil cement column has a rich mixture of soil cement or substance. Soil which is a root consolidation portion made of typical cement milk or cement mortar, and a protrusion is formed on a core material portion located in the root consolidation portion, and the core material is fixed to the root consolidation portion through the protrusion forming portion. Cement column foundation.
と根固め部以外の任意の芯材部分に突起を有している請
求項1に記載のソイルセメント柱列基礎。2. The soil cement column base according to claim 1, wherein the core material has protrusions on the core material portion located inside the root consolidation portion and on any core material portion other than the root consolidation portion.
が、継手により連結されている請求項1または2に記載
のソイルセメント柱列基礎。3. The soil cement column row foundation according to claim 1, wherein core materials of adjacent soil cement columns are connected by a joint.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP33255791A JPH05140929A (en) | 1991-11-21 | 1991-11-21 | Foundation of soil cement column train |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP33255791A JPH05140929A (en) | 1991-11-21 | 1991-11-21 | Foundation of soil cement column train |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH05140929A true JPH05140929A (en) | 1993-06-08 |
Family
ID=18256258
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP33255791A Pending JPH05140929A (en) | 1991-11-21 | 1991-11-21 | Foundation of soil cement column train |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH05140929A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006207320A (en) * | 2005-01-31 | 2006-08-10 | Nippon Steel Corp | Structure of steel pipe pile end for pile installation by inner excavation |
JP2007277830A (en) * | 2006-04-03 | 2007-10-25 | Ohbayashi Corp | Core material, continuous underground wall, soil cement wall, continuous underground wall pile, soil cement wall pile, cast-in-place concrete pile, underground structure, and foundation structure of building |
JP2013117092A (en) * | 2011-12-01 | 2013-06-13 | Ohbayashi Corp | Load testing method for soil cement column row wall |
JP2016003433A (en) * | 2014-06-13 | 2016-01-12 | 東日本旅客鉄道株式会社 | Construction method for aseismic reinforcement structure of earth structure, earth retaining structure and improvement body |
CN105926633A (en) * | 2016-03-25 | 2016-09-07 | 曹信江 | Method for protecting surrounding soil or building in foundation pit construction |
-
1991
- 1991-11-21 JP JP33255791A patent/JPH05140929A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006207320A (en) * | 2005-01-31 | 2006-08-10 | Nippon Steel Corp | Structure of steel pipe pile end for pile installation by inner excavation |
JP4608327B2 (en) * | 2005-01-31 | 2011-01-12 | 新日本製鐵株式会社 | The tip structure of a steel pipe pile used in the medium digging method. |
JP2007277830A (en) * | 2006-04-03 | 2007-10-25 | Ohbayashi Corp | Core material, continuous underground wall, soil cement wall, continuous underground wall pile, soil cement wall pile, cast-in-place concrete pile, underground structure, and foundation structure of building |
JP2013117092A (en) * | 2011-12-01 | 2013-06-13 | Ohbayashi Corp | Load testing method for soil cement column row wall |
JP2016003433A (en) * | 2014-06-13 | 2016-01-12 | 東日本旅客鉄道株式会社 | Construction method for aseismic reinforcement structure of earth structure, earth retaining structure and improvement body |
CN105926633A (en) * | 2016-03-25 | 2016-09-07 | 曹信江 | Method for protecting surrounding soil or building in foundation pit construction |
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