JPS61134441A - Method of reinforcing foundation ground of building - Google Patents
Method of reinforcing foundation ground of buildingInfo
- Publication number
- JPS61134441A JPS61134441A JP25420084A JP25420084A JPS61134441A JP S61134441 A JPS61134441 A JP S61134441A JP 25420084 A JP25420084 A JP 25420084A JP 25420084 A JP25420084 A JP 25420084A JP S61134441 A JPS61134441 A JP S61134441A
- Authority
- JP
- Japan
- Prior art keywords
- building
- ground
- pile
- pipes
- excavation
- 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
Links
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
Abstract
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った。(Prior art) and (Problem to be solved by the invention)
Underpinning and other construction methods have been proposed as methods for reinforcing the foundation ground of existing buildings, but since the reinforcement work is carried out on the ground directly beneath the existing building, the floor slabs of the same building, etc. The process was complicated, requiring modifications to sections and post-construction repair work, and it was sometimes impossible to use existing buildings as they were during construction.
（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
のであって、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翅造物の地下部分を
囲繞するパイルを地盤内に造成するようにしたので、同
パイルによっ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。(Operation) 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 the winged structure from the outside of the building on the construction ground of the existing 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
を囲繞するメ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シ、
従っ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、
従来通ル使用している状態°で基礎地盤の補強ができる
。In addition, according to the construction method of the present invention, a mail is created in the ground from the outside of the existing building to surround the underground part of the building, so all of the ground reinforcement work is done. However, if the work is outside the existing structure,
Therefore, there is no construction work related to parts of the building itself such as the floor slab of the building, and therefore there is no damage to the existing building.
The foundation ground can be reinforced in the same state as before.
（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.
囚は軟弱地盤（Ｅ）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。The prisoner is an existing structure built on soft ground (E), (C
) is the good quality ground below the 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ット（１）によって円弧状のケー
シングパイプ（２）を建造物（４）直下の軟弱地盤（Ｂ
）内に買入するとともに、同パイプ（２）の先端に装着
された掘削装置（３）によって掘削し、前記パイプ（２
）の軟弱地盤回内の掘進に伴っ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（鞠内に、建造物（４）の−側より他側に亘って同
建造物囚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) installed on the outside of the building (B) on the ground (B) moves the arc-shaped casing pipe (2) to the soft ground (B) directly below the building (4).
), and excavated by the excavation device (3) attached to the tip of the pipe (2).
), the next arcuate pipe (
2) and continued excavation, as shown in Figure 2, the soft ground (a circle surrounding the underground part of the structure (4) from the - side to the other side) Penetrate the arc-shaped casing pipe.
次いで同ケーシングノ（イブ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（
４）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（４）の基礎と前記円弧状パイル（
Ｄ）とを連結基礎（ｇ）によっ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, and the building is placed in the soft ground (B).
4) Form an arcuate pile (D) surrounding the underground part. (See Figure 1) Next, the foundation of the existing building (4) and the arc-shaped pile (
D) are connected and integrated by the connecting foundation (g).
なお前記円弧状パイル（ＤＪの半径ｒ及び本数は既存の
建造物囚の規模、良質地盤（Ｃ１の深さ等によって適宜
選定する。The radius r and number of the arc-shaped piles (DJ) are appropriately selected depending on the scale of the existing building, the quality of the ground (depth of C1, 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（４）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）によって、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（４）の外部での
作業であ夛、従って建造物囚の床版等、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（４）を損傷
させることなく、従来通シ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) formed in the soft ground (B) so as to surround the underground part of the existing building (4) allows the ground directly below the existing building to be covered. In order to increase the bearing capacity, prevent uneven settlement, increase lateral force resistance, and all the ground reinforcement work is done outside the structure (4), therefore, the floor slab of the structure, etc. Since there is no construction work on parts of the building itself, the ground can be reinforced while the building (4) is in regular use without damaging the building (4).
なお第３図に示すように軟弱地盤（Ｂ）における既存の
建造物囚の両側より夫々既存の建造物囚の直下に指向し
て、軟弱地盤（ＢＪ内に直線状パイル（Ｄ′）グ）を施
工するようにしてもよい。As shown in Figure 3, from both sides of the existing structure on the soft ground (B), directly below the existing structure, a straight pile (D') is placed on the soft ground (BJ). You may also construct it.
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・セイプの
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、（
ＤＪ・・・円弧状パイル、（Ｄ′）・・・直線状メイル
代理人 弁理士 岡 本 重 文
外３名
第１０
−−−−−騨−――−−―−−−
第２記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.・Indicates the excavation status of Seipu. FIG. 3 is a longitudinal sectional view showing the implementation status of another embodiment of the present invention. (A)...Existing buildings, (B)...Soft ground, (
DJ...Circular pile, (D')...Straight mail agent Patent attorney Shigeru Okamoto Three outsiders No. 10 --------Kin------------- Part 2
Claims (1)
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 a building, which comprises constructing a pile surrounding 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 true JPS61134441A (en) | 1986-06-21 |
| JPH0330654B2 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) |
Cited By (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
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0330654B2 (en) | 1991-05-01 |
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