Ground reforming method with a hardening material mixed and...

Details Ground reforming method with a hardening material mixed and... Ground reforming method with a hardening material mixed and...

E - Fixed Constructions

02

D

61/48

E02D 3/12 (2006.01)

Patent

CA 1334795

A ground reforming method comprises a first step for inserting an injection rod into ground to be reformed, which injection rod includes a first conduit and a second conduit surrounding the first conduit, and a first injection nozzle communicated with the first conduit and a second injection nozzle surrounding the first nozzle and communicated with the second conduit; a second step for feeding first component of an instantaneous hardening type hardening material or a slow hardening type hardening material into the first conduit of the injection rod and a second component of the hardening material or compressed gas into the second conduit; and a third step for injecting the first component of the instantaneous hardening type hardening material or the slow hardening type hardening material and the second component or compressed gas at a super high pressure through the first and second nozzles to mix each other with moving back the injection rod from the inserted portion with revolving.

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