JPH0330654B2 - - Google Patents
Info
- Publication number
- JPH0330654B2 JPH0330654B2 JP25420084A JP25420084A JPH0330654B2 JP H0330654 B2 JPH0330654 B2 JP H0330654B2 JP 25420084 A JP25420084 A JP 25420084A JP 25420084 A JP25420084 A JP 25420084A JP H0330654 B2 JPH0330654 B2 JP H0330654B2
- Authority
- JP
- Japan
- Prior art keywords
- building
- ground
- present
- existing
- pile
- 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
Links
- 238000000034 method Methods 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 7
- 238000009412 basement excavation Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009424 underpinning Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/48—Foundations inserted underneath existing buildings or constructions
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は既存の建造物の基礎地盤補強工法に係
るものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a foundation ground reinforcement method for existing buildings.
（従来の技術）及び（発明が解決しようとする問
題点）
既存の建造物の基礎地盤の補強工法としてアン
ダーピンニングその他の工法が提案されている
が、既存の建造物直下の地盤に補強のための施工
が行なわれるので、同建造物の床版等、一部に手
を加え、施工後修復作業を必要とする等、工程が
煩雑であり、また施工中は既存の建造物を従来の
まま使用することができないことがあつた。(Prior Art) and (Problems to be Solved by the Invention) Underpinning and other construction methods have been proposed as reinforcement methods for the foundation ground of existing buildings. Because construction is being carried out, the process is complicated, as some parts of the building, such as the floor slab, need to be modified and repair work done after construction, and during construction, the existing building must remain as it was. There were times when I couldn't use it.
（問題点を解決するための手段）
本発明はこのような問題を解決するために提案
されたものであつて、既存の建造物の構築地盤に
おける同建造物の外側より同地盤内部に、前記建
造物の地下部分を囲繞するパイルを造成すること
を特徴とする建造物の基礎地盤補強工法に係るも
のである。(Means for Solving the Problems) The present invention has been proposed in order to solve such problems, and the present invention has been proposed to solve the above-mentioned problems. The present invention relates to a method for reinforcing the foundation ground of a building, which is characterized by creating a pile that surrounds the underground part of the building.
（作用）及び（発明の効果）
本発明においては前記したように、既存の建造
物の構築地盤における同建造物の外側より同建造
物の地下部分を囲繞するパイルを地盤内に造成す
るようにしたので、同パイルによつて既存の建造
物直下の地盤の支持力が増大し、不等沈下が防止
され、且つ横力抵抗が増大するものである。(Operations) and (Effects of the Invention) As described above, in the present invention, a pile is created in the ground to surround the underground part of an existing building from the outside of the building. Therefore, the pile increases the supporting capacity of the ground directly beneath the existing building, prevents uneven settlement, and increases lateral force resistance.
また本発明の工法によれば、既存の建造物の構
築地盤における同建造物の外側より、地盤内に建
造物の地下部分を囲繞するパイルを造成するよう
にしたので、地盤の補強作業の全部が既存の建造
物より外方での作業であり、従つて建造物の床版
等の如き建造物自体の部分に係る工事がなく、従
つて既存の建造物を損傷させることなく、従来通
り使用している状態で基礎地盤の補強ができる。 Furthermore, according to the construction method of the present invention, piles surrounding the underground part of an existing building are created in the ground from the outside of the building, so all of the ground reinforcement work is done. The work is outside the existing building, and therefore there is no work on parts of the building itself such as the floor slab of the building, so the existing building can be used as usual without damaging it. The foundation ground can be reinforced while it is still in place.
（実施例） 以下本発明を図示の実施例について説明する。(Example) The present invention will be described below with reference to the illustrated embodiments.
Ａは軟弱地盤Ｂ上に構築された既存の建造物、
Ｃは軟弱地盤Ｂ下部の良質地盤である。 A is an existing structure built on soft ground B,
C is good quality ground below soft ground B.
而して前記地盤Ｂ上における建造物Ｂの外側方
に配設された油圧ユニツト１によつて円弧状のケ
ーシングパイプ２を建造物Ａ直下の軟弱地盤Ｂ内
に貫入するとともに、同パイプ２の先端に装着さ
れた掘削装置３によつて掘削し、前記パイプ２の
軟弱地盤Ａ内の掘進に伴つて次位の円弧状パイプ
２を継接して掘進を継続し、第２図に示すように
軟弱地盤Ｂ内に、建造物Ａの一側より他側に亘つ
て同建造物Ａの地下部分を囲繞する円弧状のケー
シングパイプを貫通させる。 The hydraulic unit 1 disposed on the outside of the building B on the ground B penetrates the arc-shaped casing pipe 2 into the soft ground B directly below the building A, and Excavation is carried out by the excavation device 3 attached to the tip, and as the pipe 2 excavates into the soft ground A, the next arc-shaped pipe 2 is connected to continue the excavation, as shown in Fig. 2. An arc-shaped casing pipe that surrounds the underground part of the building A is penetrated into the soft ground B from one side of the building A to the other side.
次いで同ケーシングパイプ内に鉄筋または鋼管
を挿入したのち、ケーシングパイプ内にコンクリ
ートを注入しながら同パイプを引抜き、軟弱地盤
Ｂ内に建造物Ａの地下部分を囲繞する円弧状パイ
ルＤを形成する。（第１図参照）
次いで既存の建造物Ａの基礎と前記円弧状パイ
ルＤとを連結基礎Ｅによつて結合し一体化する。 Next, reinforcing bars or steel pipes are inserted into the casing pipe, and then the pipe is pulled out while pouring concrete into the casing pipe to form an arcuate pile D surrounding the underground part of the building A in the soft ground B. (See Figure 1) Next, the foundation of the existing building A and the arcuate pile D are connected and integrated by a connecting foundation E.
なお前記円弧状パイルＤの半径γ及び本数は既
存の建造物Ａの規模、良質地盤Ｃの深さ等によつ
て適宜選定する。 The radius γ and the number of the arcuate piles D are appropriately selected depending on the scale of the existing building A, the depth of the good quality ground C, etc.
前記実施例の方法によれば、軟弱地盤Ｂ内に既
存の建造物Ａの地下部分を囲繞するように形成さ
れた円弧状パイルＤによつて、既存の建造物の直
下地盤の支持力を増大し、不等沈下を防止し、横
力抵抗を増大し、また地盤の補強作業がすべて建
造物Ａの外部での作業であり、従つて建造物Ａの
床版等、同建造物自体の部分に関する施工が全く
ないので、建造物Ａを損傷させることなく、従来
通り使用している状態において地盤の補強が行な
われる。 According to the method of the embodiment, the arcuate pile D is formed in the soft ground B so as to surround the underground part of the existing building A, thereby increasing the supporting capacity of the ground directly below the existing building. In order to prevent uneven settlement, increase lateral force resistance, and strengthen the ground, all work is done outside of Building A, and therefore, parts of the building itself, such as the floor slab of Building A, are Since there is no construction work involved, the ground can be reinforced while building A is being used as before without damaging it.
なお第３図に示すように軟弱地盤Ｂにおける既
存の建造物Ａの両側より夫々既存の建造物Ａの直
下に指向して、軟弱地盤Ｂ内に直線状パイルD′，
D′を施工するようにしてもよい。 As shown in Figure 3, straight piles D',
D′ may also be constructed.
以上本発明を実施例について説明したが、本発
明は勿論このような実施例にだけ局限されるもの
ではなく、本発明の精神を逸脱しない範囲内で
種々の設計の改変を施しうるものである。 Although the present invention has been described above with reference to embodiments, the present invention is, of course, not limited to such embodiments, and can be modified in various ways without departing from the spirit of the present invention. .
第１図及び第２図は本発明に係る建造物の基礎
地盤補強工法の一実施例の工程を示す縦断面図
で、第１図は施工完了時の状態を、第２図は円弧
状ケーシングパイプの掘進状態を示す。第３図は
本発明の他の実施例の実施状況を示す縦断面図で
ある。
Ａ……既存の建造物、Ｂ……軟弱地盤、Ｄ……
円弧状パイル、D′……直線状パイル。
Figures 1 and 2 are longitudinal cross-sectional views showing the steps of an embodiment of the foundation ground reinforcement method for buildings according to the present invention, with Figure 1 showing the state at the completion of construction, and Figure 2 showing the arc-shaped casing. Shows the state of pipe excavation. FIG. 3 is a longitudinal sectional view showing the implementation status of another embodiment of the present invention. A...Existing structure, B...Soft ground, D...
Arc pile, D′...straight pile.
Claims (1)
外側より同地盤内部に、前記建造物の地下部分を
囲繞するパイルを造成することを特徴とする建造
物の基礎地盤補強工法。1. A method for reinforcing the foundation ground of an existing building, which comprises constructing a pile that surrounds the underground part of an existing building from the outside of the building to the inside of the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25420084A JPS61134441A (en) | 1984-12-03 | 1984-12-03 | Method of reinforcing foundation ground of building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25420084A JPS61134441A (en) | 1984-12-03 | 1984-12-03 | Method of reinforcing foundation ground of building |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61134441A JPS61134441A (en) | 1986-06-21 |
| JPH0330654B2 true JPH0330654B2 (en) | 1991-05-01 |
Family
ID=17261638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25420084A Granted JPS61134441A (en) | 1984-12-03 | 1984-12-03 | Method of reinforcing foundation ground of building |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61134441A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63268809A (en) * | 1987-04-24 | 1988-11-07 | Nkk Corp | Ground fortifying work |
| FR2724956A1 (en) * | 1994-09-22 | 1996-03-29 | Setec Travaux Publics Et Ind | Method of excavating tree having roots |
-
1984
- 1984-12-03 JP JP25420084A patent/JPS61134441A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61134441A (en) | 1986-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3824114B2 (en) | Whale bone method for large section tunnel | |
| CN108442370A (en) | The broken pile connector processing method of prestressed concrete pipe pile | |
| JPH08296243A (en) | Construction method for underground structure by precast concrete central pillar | |
| JP2000352296A (en) | Method o constructing passage just under underground structure | |
| JPH0330654B2 (en) | ||
| JPH09111758A (en) | Cast-in-place concrete pile and construction method thereof | |
| JP2730705B2 (en) | Improvement method for soft ground | |
| KR200296444Y1 (en) | Underaround continued wall structure using a large diameter cast-in-place pile installed by Benoto method | |
| JP2697558B2 (en) | Independent mountain retaining wall method | |
| JPH10317374A (en) | Method for constructing underground column made of reinforced concrete | |
| JPH0721196B2 (en) | Reverse construction method of underground structure | |
| JPH06330524A (en) | Construction method of cast-place pile used for anchor | |
| JPH0468407B2 (en) | ||
| JP2001164559A (en) | Construction method of continuous underground wall guide wall making use of l-type precast member | |
| JPH0584773B2 (en) | ||
| JPS6250516A (en) | Formation work of composite pile | |
| JP3030622B2 (en) | How to build a tunnel | |
| JP2984728B2 (en) | Construction method of cast-in-place concrete pile | |
| JPS6322916A (en) | Construction of continuous underground wall in artificial islet | |
| JP4399062B2 (en) | Construction method of viaduct underground beam | |
| JPH0637076Y2 (en) | Coupling structure of precast piles and footings | |
| JP2589073Y2 (en) | Concrete cast-in-place pile | |
| JPH0718675A (en) | Sc pile and executing method thereof | |
| JPS64535B2 (en) | ||
| JP2000130070A (en) | Construction method for vertical shaft for shield |