Global Patent Index - EP 3165678 A4

EP 3165678 A4 20171115 - GROUND IMPROVEMENT METHOD

Title (en)

GROUND IMPROVEMENT METHOD

Title (de)

BODENVERBESSERUNGSVERFAHREN

Title (fr)

PROCÉDÉ D'AMÉLIORATION DE SOL

Publication

EP 3165678 A4 20171115 (EN)

Application

EP 15799627 A 20150527

Priority

  • JP 2014109733 A 20140528
  • JP 2014166456 A 20140819
  • JP 2015065174 W 20150527

Abstract (en)

[origin: EP3165678A1] The present invention provides a method for improving ground which is capable of improving the strength or quality of an underground consolidated body formed by reducing the ratio of water to a "rich-mixed" solidification material (a cement) (W/C), assuredly carrying the solidification material from a feed source to a jet device, and reducing the amount of the solidification material treated as an industrial waste in a construction process. The present invention was accomplished by a method for improving ground including: a step of drilling a drilling hole (H) in a ground to be improved (G);a step of moving (pulling up) a jet device (1) in a vertical direction by rotating the same while the jet device (1) is inserted into the drilling hole(H) and a fluid for cutting the ground(G) (a stable liquid or a partition forming material) is injected from the jet device (1); and a step of injecting a solidification material from the jet device (1).

IPC 8 full level

E02D 3/12 (2006.01)

CPC (source: EP US)

E02D 3/12 (2013.01 - EP US); E02D 2250/003 (2013.01 - EP US); E02D 2300/0018 (2013.01 - EP US); E02D 2300/0023 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 3165678 A1 20170510; EP 3165678 A4 20171115; EP 3165678 B1 20220921; AU 2015266559 A1 20161215; AU 2015266559 A8 20170105; AU 2015266559 B2 20190502; CA 2950562 A1 20151203; CA 2950562 C 20191231; JP 2016006270 A 20160114; JP 6415897 B2 20181031; SG 11201609037U A 20161229; US 2017204580 A1 20170720; WO 2015182635 A1 20151203

DOCDB simple family (application)

EP 15799627 A 20150527; AU 2015266559 A 20150527; CA 2950562 A 20150527; JP 2014166456 A 20140819; JP 2015065174 W 20150527; SG 11201609037U A 20150527; US 201515314145 A 20150527