JPH10298976A - Foundation structure for building bound with soil cement column row earth retaining wall to skeleton - Google Patents

Foundation structure for building bound with soil cement column row earth retaining wall to skeleton

Info

Publication number
JPH10298976A
JPH10298976A JP9113943A JP11394397A JPH10298976A JP H10298976 A JPH10298976 A JP H10298976A JP 9113943 A JP9113943 A JP 9113943A JP 11394397 A JP11394397 A JP 11394397A JP H10298976 A JPH10298976 A JP H10298976A
Authority
JP
Japan
Prior art keywords
retaining wall
soil cement
skeleton
earth retaining
earthquake
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.)
Granted
Application number
JP9113943A
Other languages
Japanese (ja)
Other versions
JP3063673B2 (en
Inventor
Katsumi Nakayama
克己 中山
Keizo Miyagawa
恵三 宮川
Yoichi Morishima
洋一 森島
Takahiro Nakajima
隆裕 中島
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kajima Corp
Original Assignee
Kajima Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kajima Corp filed Critical Kajima Corp
Priority to JP9113943A priority Critical patent/JP3063673B2/en
Publication of JPH10298976A publication Critical patent/JPH10298976A/en
Application granted granted Critical
Publication of JP3063673B2 publication Critical patent/JP3063673B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To increase the yield strength against horizontal force at the time of an earthquake by burying an H-steel in soil cement, scraping off the soil cement on the skeleton side of a structure formed by excavating the ground, arranging a reinforcing bar or stud connectors, and integrating the structure skeleton and an earth retaining wall. SOLUTION: An H-steel 4 is buried in a soil cement column earth retaining wall 1, the soil cement on the skeleton 5 side of a structure formed by excavating the ground is scraped off, and a reinforcing bar 2 or stud connectors 3 are arranged. The strong side axis of the H-steel 4 buried in the soil cement column earth retaining wall 1 is directed to the direction along the soil cement column earth retaining wall 1. A shear cotter 6 is formed between the flanges of the H-steel 4 to integrate the soil cement column earth retaining wall 1 and the structure skeleton 5. The stress transfer performance between the skeleton 5 and the earth retaining wall 1 against the shearing force at the time of an earthquake can be strengthened. The yield strength against horizontal force at the time of the earthquake can be increased.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】液状化地盤、軟弱地盤等に構
築される建造物で、地中に生ずる地震時の水平力を効果
的に伝達できる基礎構造に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building constructed on liquefied ground, soft ground, etc., and relates to a foundation structure capable of effectively transmitting a horizontal force generated in the ground during an earthquake.

【0002】[0002]

【従来の技術及び発明が解決しようとする課題】杭基礎
は支持力の確実性を初め経済性に優れている等の特性を
もつため、多くの構造物の基礎として用いられている。
杭はその構造特性から鉛直荷重に対して強く水平荷重に
対して弱い弱点を持っている。大きな水平荷重が作用す
る場合、発生する変位や曲げ応力が構造物の安全性を損
なはないよう十分な検討が必要である。
2. Description of the Related Art Pile foundations are used as the foundations of many structures because they have characteristics such as a reliable bearing capacity and excellent economic efficiency.
Pile has weak point against horizontal load and weak point against horizontal load due to its structural characteristics. When a large horizontal load is applied, it is necessary to sufficiently consider that the generated displacement and bending stress do not impair the safety of the structure.

【0003】液状化地盤、軟弱地盤等に構築される建造
物は一般的に杭基礎により建造物を支持するが、地震時
の水平力によって杭に生ずる曲げ応力が大きく、これに
耐えるように杭の本数を増やすとか曲げ強度を増して安
全性を確保している。ここで従来、地下掘削の際の山止
め壁として、ソイルセメント柱列山止め壁工法が用いら
れている。
[0003] Buildings constructed on liquefied ground, soft ground, etc., generally support the building with pile foundations, but the piles are subjected to large bending stress due to the horizontal force during an earthquake. By increasing the number or bending strength, safety is ensured. Heretofore, a soil cement column row retaining wall method has been used as a retaining wall for underground excavation.

【0004】地下構造物を構築する際、ソイルセメント
柱列山止め壁を用いて土圧を受け山止めして地盤を掘削
した場合、山止め壁は仮設材なので普通は構造物が造築
された後は不要のものとして置き去られるのであるが、
この発明ではこれを地下構造物の本体躯体と一体にして
活かし、上記杭の弱点である水平荷重に抵抗させようと
するものである。そしてソイルセメント柱列山止め壁と
躯体との一体化の構造が、水平地震力に有効に耐抗しう
るようなものを提供することを課題とする。
[0004] When constructing an underground structure, when soil is excavated by receiving earth pressure using a soil cement pillar array retaining wall, when the ground is excavated, the structure is usually constructed because the retaining wall is a temporary material. After that, they are left as unnecessary things,
In the present invention, this is utilized integrally with the main body of the underground structure to resist the horizontal load, which is a weak point of the pile. It is another object of the present invention to provide a structure in which the soil cement pillar array retaining wall and the skeleton are integrated with each other so as to effectively resist horizontal seismic force.

【0005】[0005]

【課題を解決するための手段】ソイルセメント柱列山止
め壁において、ソイルセメント中にH形綱を埋設し、地
盤を掘削する構造物の躯体側のソイルセメントを削り取
り、鉄筋またはスタッドコネクタを配設し、構造物躯体
と前記山止め壁を一体化してなることを特徴とするソイ
ルセメント柱列山止め壁を躯体に緊結した建物の基礎構
造を主旨とする。
Means for Solving the Problems In the soil cement pillar row retaining wall, an H-shaped rope is buried in the soil cement, the soil cement on the skeleton side of the structure for excavating the ground is scraped off, and reinforcing bars or stud connectors are arranged. The main purpose of the present invention is to provide a foundation structure of a building in which a soil-cemented column-arranged retaining wall is tightly attached to a structural body, wherein the structural body is integrated with the retaining wall.

【0006】次にその作用について述べる。Next, the operation will be described.

【0007】図1は構造物の基礎平面図である。例えば
矢印の方向の地震水平力が作用した場合、水平力は主と
して該水平力に沿うソイルセメント柱列山止め壁1が負
担する。従って効率よく水平力に耐抗するように、山止
め連続地中壁に埋設するH形鋼の強軸は図2(a)に示
すように、水平力の方向に沿っている。従来は、土圧に
耐抗する事のみを考慮していたため、(b)のようにH
形鋼の強軸の方向は山止め壁の方向と直角であった。
FIG. 1 is a basic plan view of the structure. For example, when a seismic horizontal force acts in the direction of the arrow, the horizontal force is mainly borne by the soil cement pillar row retaining wall 1 along the horizontal force. Therefore, in order to efficiently withstand the horizontal force, the strong axis of the H-section steel buried in the continuous underground wall of the ridge is along the direction of the horizontal force as shown in FIG. Conventionally, only resistance to earth pressure has been considered, and as shown in FIG.
The direction of the strong axis of the section steel was perpendicular to the direction of the retaining wall.

【0008】また図4或いは図5に示すように、構造物
の躯体と一体化する側のソイルセメントを削り取って、
鉄筋2またはスタッドコネクタ3を配設する。そしてH
形鋼4のフランジ間にシアコッタ6を形成し、地震時の
剪断力に対する躯体と山止め壁間の応力伝達性能を強化
することができる。
Further, as shown in FIG. 4 or 5, the soil cement integrated with the structural body is scraped off,
The reinforcing bar 2 or the stud connector 3 is provided. And H
The shear cotter 6 is formed between the flanges of the section steel 4, and the stress transmission performance between the skeleton and the retaining wall against shearing force during an earthquake can be enhanced.

【0009】また従来のようにソイルセメントに埋設し
たH形鋼の強軸の方向が、地震時の水平力に直角方向で
あっても、構造物の躯体側のソイルセメントを削り取っ
てスタッドコネクタまたは鉄筋を溶接した場合も、期待
する耐力の程度によっては躯体と山止め壁が一体化する
ので、それなりに地震時の剪断力に対する躯体と山止め
壁間の応力伝達性能を強化することができる。
[0009] Even if the direction of the strong axis of the H-section steel buried in the soil cement as in the past is perpendicular to the horizontal force at the time of the earthquake, the soil cement on the skeleton side of the structure is scraped off to remove the stud connector or the stud connector. Even when the reinforcing steel is welded, the skeleton and the retaining wall are integrated depending on the expected strength, so that the stress transmission performance between the skeleton and the retaining wall against the shearing force during an earthquake can be strengthened.

【0010】[0010]

【発明の実施の形態】以下図面に基づいてこの発明の実
施の形態を説明する。
Embodiments of the present invention will be described below with reference to the drawings.

【0011】図1は構造物の基礎平面図である。FIG. 1 is a basic plan view of the structure.

【0012】図2(a)は、本発明のソイルセメント柱
列山止め壁に埋設するH形鋼の強軸の方向と地震時の水
平力の方向と土圧の方向を示した図であり、(b)は従
来の方向を示す図である。
FIG. 2 (a) is a diagram showing the direction of the strong axis, the direction of the horizontal force at the time of the earthquake, and the direction of the earth pressure of the H-section steel buried in the soil cement pillar retaining wall of the present invention. (B) is a diagram showing a conventional direction.

【0013】図3(a)は、H形鋼の強軸をソイルセメ
ント柱列山止め壁の面に沿わせた場合、構造物躯体側の
山止め壁1を削り取り、H形鋼4のフランジとフランジ
の間に躯体5を埋め込み、シアコッタ6を形成した図で
ある。(b)はH形鋼の強軸をソイルセメント柱列山止
め壁と直角に埋設した場合、構造物躯体側の山止め壁1
を削り取り、H形鋼4のフランジにスタッドコネクタ3
または鉄筋2を溶接する前の図である。(c)は(a)
の立面図であり、躯体を支持するソイルセメント柱列山
止め壁1を支持地盤層8に根入れしているところを示
す。
FIG. 3 (a) shows that when the strong axis of the H-section steel is aligned with the surface of the soil cement pillar row retaining wall, the retaining wall 1 on the structure body side is scraped off and the flange of the H-section steel 4 is removed. FIG. 3 is a diagram in which a skeleton 5 is buried between a flange and a flange to form a shear cotter 6. (B) shows a case in which the strong axis of the H-section steel is buried at right angles to the soil cement pillar row retaining wall, and the retaining wall 1 on the structure body side.
And stud connector 3 on H-section steel 4 flange
Or it is a figure before welding the reinforcing bar 2. (C) is (a)
It is an elevational view of FIG. 1 and shows a place where the soil cement pillar row retaining wall 1 for supporting the skeleton is embedded in the supporting ground layer 8.

【0014】図4はシアコッタ6の詳細図の一例で、H
形鋼4のフランジとフランジの間の懐に鉄筋2とスタッ
ドコネクタ3を配設した図である。図5もシアコッタ6
の詳細図の一例で、H形鋼のフランジとフランジの間の
懐に鉄筋2を溶接した図である。 これらシアコッタで
躯体と山止め壁間の剪断力伝達性能は大幅に増強する。
FIG. 4 is an example of a detailed view of the shea cotter 6,
FIG. 4 is a diagram in which a reinforcing bar 2 and a stud connector 3 are disposed in a pocket between flanges of a section steel 4. FIG. 5 also shows shea cotta 6
FIG. 3 is an example of a detailed view of FIG. 1, in which a reinforcing bar 2 is welded to a pocket between H-shaped steel flanges. With these shea cotta, the shear force transmission performance between the skeleton and the retaining wall is greatly enhanced.

【0015】図6はH形鋼4の強軸を地震時の水平力と
直角方向に埋設し、H形鋼のフランジにスタッドコネク
タ3または鉄筋2を配設して、構造物躯体5とソイルセ
メント柱列山止め壁1と一体化しようとする図である。
FIG. 6 shows that the strong axis of the H-section steel 4 is buried in a direction perpendicular to the horizontal force at the time of the earthquake, and the stud connector 3 or the reinforcing bar 2 is disposed on the flange of the H-section steel, and the structural body 5 and the soil It is a figure which is going to be integrated with a cement pillar row retaining wall 1.

【0016】[0016]

【発明の効果】この発明は以上のような構成からなり、
その効果は次の通りである。
The present invention has the above-described configuration,
The effect is as follows.

【0017】地下基礎を杭のみならず、ソイルセメン
ト柱列山止め壁を構造物躯体と一体化することにより、
地震時の水平力に対する耐力が増強される。
By integrating the underground foundation not only with the pile but also with the soil cement pillar row retaining wall and the structural body,
Strength against horizontal force during earthquake is increased.

【0018】H形鋼に鉄筋またはスタッドコネクタ等
を配設し、シアコッタを形成してソイルセメント柱列山
止め壁と構造物躯体を一体化したので、構造物躯体と山
止め壁間の剪断力の伝達性能が増強される。
Since a reinforcing bar or a stud connector or the like is provided on the H-section steel and a shear cotter is formed to integrate the soil cement pillar row retaining wall and the structural body, the shearing force between the structural body and the retaining wall is formed. Transmission performance is enhanced.

【0019】ソイルセメント柱列山止め壁に埋設する
H形鋼の強軸の向きを、山止め壁に沿う方向としたの
で、地震時の水平耐力は一層効果的に増強される。
Since the direction of the strong axis of the H-section steel buried in the soil cement pillar row retaining wall is set to the direction along the retaining wall, the horizontal strength in the event of an earthquake is more effectively enhanced.

【0020】H形鋼の強軸の埋設方向を山止め壁と直
角方向にしても、スタッドコネクタ等で期待する耐力の
程度によっては充分な水平剪断力を伝達し得る。
Even when the direction of embedding the strong axis of the H-section steel is perpendicular to the retaining wall, a sufficient horizontal shearing force can be transmitted depending on the expected strength of the stud connector or the like.

【図面の簡単な説明】[Brief description of the drawings]

【図1】構造物の基礎平面図である。FIG. 1 is a basic plan view of a structure.

【図2】(a)は、本発明のソイルセメント柱列山止め
壁に埋設するH形鋼の強軸の方向と地震時の水平力の方
向と土圧の方向を示した図であり、(b)は従来の方向
を示す図である。
FIG. 2 (a) is a diagram showing the direction of the strong axis, the direction of the horizontal force at the time of the earthquake, and the direction of the earth pressure of the H-section steel buried in the soil cement pillar row retaining wall of the present invention, (B) is a diagram showing a conventional direction.

【図3】(a)は、H形鋼の強軸をソイルセメント柱列
山止め壁の面に沿わせた場合、構造物躯体側の山止め壁
1を削り取り、H形鋼4のフランジとフランジの間に躯
体5を埋め込み、シアコッタ6を形成した図である。
(b)はH形鋼の強軸をソイルセメント柱列山止め壁と
直角に埋設した場合、構造物躯体側の山止め壁1を削り
取り、H形鋼4のフランジにスタッドコネクタ3または
鉄筋2を溶接する前の図である。(c)は(a)の立面
図であり、躯体を支持するソイルセメント柱列山止め壁
1を支持地盤層8に根入れしているところを示す図であ
る。
FIG. 3 (a) shows a case where the strong axis of the H-section steel is aligned with the surface of the soil cement pillar row retaining wall, and the retaining wall 1 on the structure skeleton side is scraped off and the flange of the H-section steel 4 is removed. FIG. 3 is a diagram in which a skeleton 5 is embedded between flanges to form a shear cotter 6.
(B), when the strong axis of the H-section steel is buried at right angles to the soil cement pillar row retaining wall, the retaining wall 1 on the structural body side is cut off, and the stud connector 3 or the reinforcing bar 2 is attached to the flange of the H-section steel 4. It is a figure before welding. (C) is an elevational view of (a), and is a view showing that the soil cement pillar row retaining wall 1 that supports the skeleton is embedded in the supporting ground layer 8.

【図4】シアコッタ6の詳細図の一例で、H形鋼4のフ
ランジとフランジの間の懐に鉄筋2とスタッドコネクタ
3を配設した図である。
FIG. 4 is an example of a detailed view of the shear cotter 6, in which a reinforcing bar 2 and a stud connector 3 are arranged in a pocket between flanges of an H-section steel 4;

【図5】シアコッタ6の詳細図の一例で、H形鋼のフラ
ンジとフランジの間の懐に鉄筋2を溶接した図である。
FIG. 5 is an example of a detailed view of the shear cotter 6, in which a reinforcing bar 2 is welded to a pocket between H-shaped steel flanges.

【図6】H形鋼4の強軸を地震時の水平力と直角方向に
埋設し、H形鋼のフランジにスタッドコネクタ3及び鉄
筋2を配設して、構造物躯体5とソイルセメント柱列山
止め壁1と一体化しようとする図である。
FIG. 6 embeds the strong axis of the H-section steel 4 in a direction perpendicular to the horizontal force at the time of the earthquake, arranges the stud connector 3 and the reinforcing bar 2 on the flange of the H-section steel, and constructs the structure body 5 and the soil cement column. It is a figure which is going to be integrated with a row stop wall 1.

【符号の説明】[Explanation of symbols]

1……ソイルセメント柱列山止め壁 2……鉄筋 3……スタッドコネクタ 4……H形鋼 5……構造物躯体 6……シアコッタ 7……杭 8……支持地盤 DESCRIPTION OF SYMBOLS 1 ... Soil cement pillar row retaining wall 2 ... Reinforcing bar 3 ... Stud connector 4 ... H-shaped steel 5 ... Structural body 6 ... Sia cotta 7 ... Pile 8 ... Support ground

───────────────────────────────────────────────────── フロントページの続き (72)発明者 中島 隆裕 東京都港区元赤坂1丁目2番7号 鹿島建 設株式会社内 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Takahiro Nakajima Kashima Construction Co., Ltd. 1-2-7 Moto-Akasaka, Minato-ku, Tokyo

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 ソイルセメント柱列山止め壁において、
ソイルセメント中にH形綱を埋設し、地盤を掘削する構
造物の躯体側のソイルセメントを削り取り、鉄筋または
スタッドコネクタを配設し、構造物躯体と前記山止め壁
を一体化してなることを特徴とするソイルセメント柱列
山止め壁を躯体に緊結した建物の基礎構造。
In a soil cement pillar row retaining wall,
By embedding an H-shaped rope in soil cement, shaving off the soil cement on the skeleton side of the structure where the ground is to be excavated, arranging a reinforcing bar or a stud connector, and integrating the structural body with the retaining wall. The foundation structure of the building, which is made up of the characteristic soil-cement pillar-column stop wall and the skeleton.
JP9113943A 1997-05-01 1997-05-01 Foundation structure of building with soil cement pillar row retaining wall tied to frame Expired - Fee Related JP3063673B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9113943A JP3063673B2 (en) 1997-05-01 1997-05-01 Foundation structure of building with soil cement pillar row retaining wall tied to frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9113943A JP3063673B2 (en) 1997-05-01 1997-05-01 Foundation structure of building with soil cement pillar row retaining wall tied to frame

Publications (2)

Publication Number Publication Date
JPH10298976A true JPH10298976A (en) 1998-11-10
JP3063673B2 JP3063673B2 (en) 2000-07-12

Family

ID=14625096

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9113943A Expired - Fee Related JP3063673B2 (en) 1997-05-01 1997-05-01 Foundation structure of building with soil cement pillar row retaining wall tied to frame

Country Status (1)

Country Link
JP (1) JP3063673B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100969778B1 (en) 2008-01-15 2010-07-13 주식회사 스마텍엔지니어링 Composite Wall Using Angled Channel and Constructing Method thereof
KR101001084B1 (en) * 2007-12-17 2010-12-14 주식회사 다산컨설턴트 Composite Wall Using Angled Channel and Constructing Method thereof
JP2013167067A (en) * 2012-02-14 2013-08-29 Ohbayashi Corp Method for evaluating horizontal resistance of underground structure
JP2013167114A (en) * 2012-02-16 2013-08-29 Ohbayashi Corp Underground structure and construction method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101001084B1 (en) * 2007-12-17 2010-12-14 주식회사 다산컨설턴트 Composite Wall Using Angled Channel and Constructing Method thereof
KR100969778B1 (en) 2008-01-15 2010-07-13 주식회사 스마텍엔지니어링 Composite Wall Using Angled Channel and Constructing Method thereof
JP2013167067A (en) * 2012-02-14 2013-08-29 Ohbayashi Corp Method for evaluating horizontal resistance of underground structure
JP2013167114A (en) * 2012-02-16 2013-08-29 Ohbayashi Corp Underground structure and construction method thereof

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Publication number Publication date
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