EP 0305259 B1 19910102 - PROCESS FOR RETAINING LATERAL WALLS OF DEEP EXCAVATIONS
Title (en)
PROCESS FOR RETAINING LATERAL WALLS OF DEEP EXCAVATIONS
Publication
Application
Priority
FR 8711308 A 19870807
Abstract (en)
[origin: JPH01131723A] PURPOSE: To dig a hole simply and economically by digging an inner side of a lateral wall of timbering down to a fixed depth, then constructing an annular slab having an opening part at the center thereof in a bottom part of a digged hole, supporting it by support wire, and then digging the hole through the opening part. CONSTITUTION: After a lateral wall 1 of timbering is constructed around a hole, its inner side is digged down to such depth that the lateral wall 1 can resist against soil pressure. Next, an annular slab 3 is constructed in a bottom part of the digged hole and is supported by connecting it with an upper part of the lateral wall 1 of timbering using a support wire 5 after the slab 3 is coagulated. A lower part from the slab 3 is digged through an opening part 4 provided at the center of the annular slab 3. Consequently, it is unnecessary to provide a deep support part for supporting a floor provided so as to withstand a horizontal force that soil applies on the lateral wall of timbering from the beginning of digging, and the construction can be done simply and economically.
IPC 1-7
IPC 8 full level
E02D 17/08 (2006.01); E02D 27/30 (2006.01); E02D 29/045 (2006.01); E02D 31/10 (2006.01)
IPC 8 main group level
E02D (2006.01)
CPC (source: EP US)
E02D 29/045 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES GB IT LI
DOCDB simple family (publication)
EP 0305259 A1 19890301; EP 0305259 B1 19910102; AT E59683 T1 19910115; CA 1292363 C 19911126; CY 1714 A 19940506; DE 305259 T1 19891005; DE 3861365 D1 19910207; ES 2008663 A4 19890801; ES 2008663 B3 19910616; FR 2619139 A1 19890210; FR 2619139 B1 19891117; HK 88793 A 19930903; JP H01131723 A 19890524; JP H0569930 B2 19931004; MC 1971 A1 19890929; SG 48693 G 19930709; US 4900197 A 19900213
DOCDB simple family (application)
EP 88402056 A 19880805; AT 88402056 T 19880805; CA 574007 A 19880805; CY 171494 A 19940506; DE 3861365 T 19880805; DE 88402056 T 19880805; ES 88402056 T 19880805; FR 8711308 A 19870807; HK 88793 A 19930826; JP 19592688 A 19880805; MC 1998 A 19880805; SG 48693 A 19930416; US 22922488 A 19880805