Title:
CONSTRUCTION METHOD OF IMPROVING OR STRENGTHENING GROUND
Document Type and Number:
WIPO Patent Application WO/1992/021825
Kind Code:
A1
Abstract:
A method of squeezing a self-hardening material of stiff consistency into the ground through a jet pipe inserted into the ground when improving or strengthening the soft ground. While or after softening the ground to be treated by jetting high pressurized water from a high pressurized fluid jetting nozzle provided on the forward end of the jet pipe inserted into the soft ground, the self-hardening material of stiff consistency is squeezed into said softened ground to produce an improved part in the ground. A jet pipe having a jetting part projecting outward from the pipe may be used.
Inventors:
CHIDA SHOHEI (JP)
TOKORO TAKEHIKO (JP)
SENDA MASATOSHI (JP)
TOKORO TAKEHIKO (JP)
SENDA MASATOSHI (JP)
Application Number:
PCT/JP1991/001688
Publication Date:
December 10, 1992
Filing Date:
December 03, 1991
Export Citation:
Assignee:
CHICHIBU CEMENT KK (JP)
NIPPON SOGO BOSUI KK (JP)
CHIDA SHOHEI (JP)
NIPPON SOGO BOSUI KK (JP)
CHIDA SHOHEI (JP)
International Classes:
E01B2/00; E02D3/12; E02D5/44; (IPC1-7): E02D3/12
Foreign References:
| JPS50113013A | 1975-09-04 | |||
| JPS6019816A | 1985-02-01 | |||
| JPH01102122A | 1989-04-19 | |||
| JPS54415A | 1979-01-05 |
Other References:
See also references of EP 0541812A1
Attorney, Agent or Firm:
Nagai, Yoshihisa (3-4 Nihonbashihoncho 4-chom, Chuo-ku Tokyo 103, JP)
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