METHOD FOR CORRECTING CONCRETE SLAB ON SUNK GROUND

WIPO Patent Application WO/2017/209160

A1

The present invention addresses the problem of providing a method for accurately correcting a concrete slab on a sunken ground by injecting expandable resin below the concrete slab a plurality of times, wherein the method facilitates operation process management. The method provided as the solution according to the present invention involves executing, a plurality of times, a step for determining the points where injection holes are to be bored at a pitch of 0.5-2.0 m for injecting expandable resin in a grid or zigzag manner into the concrete slab of an area including a range in which ground sinking has occurred, and pushing up the concrete slab by at most 30 mm by injecting and expanding the expandable resin below a point where the concrete slab has sunken most.

JP2807833	INDUSTRIAL APPLICABILITY: Method for correcting uneven settlement of structures
JP4807622	Uneven settlement correction method by iron plate footing method
JPH11166242	UNDERGROUND SPACE CONSTRUCTING METHOD AND SUPPORTING STRUCTURE IN UNDERGROUND SPACE CONSTRUCTION

MATSUDO NOBUKAZU (JP)
KAWAGUCHI KOJI (JP)

PCT/JP2017/020184

December 07, 2017

May 31, 2017

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UPCON CORP (JP)
MATSUDO NOBUKAZU (JP)

E02D35/00; E02D3/12; E02D27/38

JP2010126955A

2010-06-10

TSUJITA Takashi et al. (JP)

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