METHOD AND DEVICE FOR IMPROVING POOR GROUND - MARUYAMA KOUGYO KABUSHIKIKAISH

Title:

METHOD AND DEVICE FOR IMPROVING POOR GROUND

Document Type and Number:

WIPO Patent Application WO/2004/040068

Kind Code:

A1

Abstract:

A method of improving a poor ground capable of building a decompressed area separated from an improved ground peripheral part (B) in an improved ground (A) by covering the upper surface of the improved ground (A) with an air−tight sheet (10) and propagating a vacuum pressure into the improved ground (A), characterized by comprising the step of discharging space water sucked from the inside of the improved ground (A) according to the propagation of the vacuum pressure to the outside of the improved ground (A) through a drain route formed of drain tanks (16) disposed in the improved ground (A) on the underside of a catchment pipe (13) installed separately from a propagation route for the vacuum pressure, whereby the ground can be efficiently improved by transmitting the vacuum pressure to the every inside corner of the improved ground.

Inventors:

NAKAKUMA KAZUYOSHI (JP)

Application Number:

PCT/JP2002/011409

Publication Date:

May 13, 2004

Filing Date:

October 31, 2002

Export Citation:

Click for automatic bibliography generation Help

Assignee:

MARUYAMA KOUGYO KABUSHIKIKAISH (JP)
NAKAKUMA KAZUYOSHI (JP)

International Classes:

E02D3/10; (IPC1-7): E02D3/10

Foreign References:

JP2001311136A	2001-11-09
JP2000210062A	2000-08-02
JPH04203014A	1992-07-23
JPH10325136A	1998-12-08
JP2000144707A	2000-05-26
JP2002146768A	2002-05-22
JPH03137314A	1991-06-11
JPH05280034A	1993-10-26

Other References: