JPH07259103A - Improving method for soft ground - Google Patents

Improving method for soft ground

Info

Publication number
JPH07259103A
JPH07259103A JP8521594A JP8521594A JPH07259103A JP H07259103 A JPH07259103 A JP H07259103A JP 8521594 A JP8521594 A JP 8521594A JP 8521594 A JP8521594 A JP 8521594A JP H07259103 A JPH07259103 A JP H07259103A
Authority
JP
Japan
Prior art keywords
foundation
filling
woven
soft ground
bag
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
Application number
JP8521594A
Other languages
Japanese (ja)
Inventor
Takayoshi Fujiwara
孝喜 藤原
Original Assignee
Takayoshi Fujiwara
孝喜 藤原
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 Takayoshi Fujiwara, 孝喜 藤原 filed Critical Takayoshi Fujiwara
Priority to JP8521594A priority Critical patent/JPH07259103A/en
Publication of JPH07259103A publication Critical patent/JPH07259103A/en
Pending legal-status Critical Current

Links

Abstract

(57) [Summary] (Modified) [Purpose] Uneven settlement of structures on soft ground, especially to prevent the progress of settlement that occurs in densely populated areas. [Structure] Insert a long tubular woven fabric bag 4 woven together so as to form a pile with a special shape when it swells into a hole 3 drilled directly below the foundation 2 of the existing building 1 together with the injection pipe 5, and the passage of time The filler 6 which solidifies with the above is pressed into the woven bag. The top of the woven bag, which has a special shape due to the press-fitting of the filling, is fixedly integrated with the foundation.

Description

[Detailed Description of the Invention] In an area where clay layers having a depth of several to several tens of US are mainly used, when building or installing a building or heavy object, the foundation of them is the composition of the ground, Designed and constructed in consideration of all soil properties such as clay type. That is, the ground on which the foundation acts must surely retain its proof stress. On soft ground, however, differential settlement often occurs in relation to groundwater and neighboring properties. The present invention has been devised to prevent such a phenomenon, and it will be explained with reference to the drawings. Fig. 1 is a schematic diagram of the construction method of the present invention, which is drilled directly under the foundation (2) of an existing building (1). A long tubular woven fabric bag (4) specially woven for use in the method of the present invention is inserted into the hole (3) together with the injection pipe (5). FIG. 2 shows an example of the woven bag (4) which is inflated by injecting the filling (6), and FIG. 3 shows the filling (6) of the woven bag (4) which solidifies with the passage of time. It is a schematic diagram showing a process of sequentially pulling out the injection pipe (5) while injecting and filling from the tip (lowest) through the injection pipe (5). Fig. 4 is a completed construction drawing of the proposed method. The top of the long tubular woven bag (4) with a special shape by press-fitting the filling (6) is designed to efficiently load the building (1). In order to receive it well, it is fixedly integrated (7) on the entire lower surface of the foundation (2). In Japan, where about 25% of the national land is dominated by soft ground, many ground improvement methods have been developed. However, the urban structure becomes complicated day by day, and a simple construction method in a narrower space is required. The present invention has been devised to meet this requirement, and is characterized in that after the construction of the present invention, it is possible to easily correct and restore the submerged portion, not just a slight amount that prevents subsequent subsidence.

[Brief description of drawings]

Fig. 1 Schematic diagram of the method of the present invention during construction Fig. 2 Schematic diagram of an example in which the woven bag used in the method of the present invention has a special shape when the contents are filled with filling material Fig. 3 Fig. 3 of the method of the present invention Schematic diagram of the process of pulling out the injection pipe while filling the woven bag with the filling in the course of the process. Fig. 4 Completed drawing of the present invention Detail 1, Building 2, Existing foundation 3, Constricted hole 4 Woven bag 5, filling material injection pipe 6, filling material that solidifies over time 7, solid integrated part

Claims (1)

    [Claims]
  1. For uneven settlement of an existing building caused or that may occur due to soft ground, the ground just below the foundation of the building is pierced and woven in such a way that it swells into a special shape A method in which a tubular woven fabric bag is inserted, and a filling material that solidifies over time is pressed into the bag to improve the ground to resist the load of the building.
JP8521594A 1994-03-16 1994-03-16 Improving method for soft ground Pending JPH07259103A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8521594A JPH07259103A (en) 1994-03-16 1994-03-16 Improving method for soft ground

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8521594A JPH07259103A (en) 1994-03-16 1994-03-16 Improving method for soft ground

Publications (1)

Publication Number Publication Date
JPH07259103A true JPH07259103A (en) 1995-10-09

Family

ID=13852361

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8521594A Pending JPH07259103A (en) 1994-03-16 1994-03-16 Improving method for soft ground

Country Status (1)

Country Link
JP (1) JPH07259103A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2798150A1 (en) * 1999-09-07 2001-03-09 Atighechi Alain Tabatabai Building foundation consolidation system consists of pumping mortar through tubes in lengthwise beam to fill gaps caused by ground movement
WO2011131833A2 (en) * 2010-04-19 2011-10-27 Uretek Worldwide Oy Method and arrangement for preventing movement of structure
WO2012085342A1 (en) * 2010-12-20 2012-06-28 Uretek Worldwide Oy Method and arrangement for supporting structure
US8956083B2 (en) 2010-02-23 2015-02-17 Uretek Worldwide Oy Method and apparatus for injecting material into soil

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2798150A1 (en) * 1999-09-07 2001-03-09 Atighechi Alain Tabatabai Building foundation consolidation system consists of pumping mortar through tubes in lengthwise beam to fill gaps caused by ground movement
US8956083B2 (en) 2010-02-23 2015-02-17 Uretek Worldwide Oy Method and apparatus for injecting material into soil
WO2011131833A2 (en) * 2010-04-19 2011-10-27 Uretek Worldwide Oy Method and arrangement for preventing movement of structure
WO2011131833A3 (en) * 2010-04-19 2011-12-15 Uretek Worldwide Oy Method and arrangement for preventing movement of structure
WO2012085342A1 (en) * 2010-12-20 2012-06-28 Uretek Worldwide Oy Method and arrangement for supporting structure
US9200422B2 (en) 2010-12-20 2015-12-01 Uretek Worldwide Oy Method and arrangement for supporting structure

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