GROUND IMPROVEMENT METHOD BY HIGH PRESSURE INJECTION-AGITATION METHOD

PROBLEM TO BE SOLVED: To provide a ground improvement method by a high pressure injection-agitation method, capable of easily and excellently executing work when improving a ground by establishing a solidification improvement body in the ground, particularly, even when improving the ground just unde...

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Bibliographic Details
Main Authors ISOTANI SHUJI, TANAKA HATSUICHI, OKADO MASANORI, FUKADA HISASHI
Format Patent
LanguageEnglish
Published 11.09.2014
Subjects
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SOIL SHIFTING
UNDERGROUND OR UNDERWATER STRUCTURES
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Summary:PROBLEM TO BE SOLVED: To provide a ground improvement method by a high pressure injection-agitation method, capable of easily and excellently executing work when improving a ground by establishing a solidification improvement body in the ground, particularly, even when improving the ground just under an existing structure.SOLUTION: The ground improvement method by the high pressure injection-agitation method is characterized by inserting a pipe rod 1 up to a predetermined depth in the ground by a construction machine 2, injecting a hardener at a high speed under high pressure from a pipe rod 1 after the insertion, cutting the ground by injection energy of the hardener while establishing agitating-mixing the injected hardener and the ground, and establishing a solidification improvement body T in the ground to improve the ground. The ground improvement method by the high pressure injection-agitation method linearly injects the hardener at a high speed under high pressure from the pipe rod 1 in a rotation-stop state without rotating the pipe rod 1 after inserting the pipe rod 1 into the ground.
Bibliography:Application Number: JP20130039286