To provide a liquefaction inhibiting method which increases strength against liquefaction by treating the inside of the soft ground in an unsaturated state, and liquefaction inhibition performance maintaining equipment for implementing the method.
An injection pipe 3 for injecting a solution into the ground is buried to one side of the ground 1, the outer periphery of which is surrounded by an impervious wall 2, and a pumping pipe 4 for pumping up groundwater in the ground is installed on the other side. While a hydraulic gradient is horizontally formed in the ground by pumping up the groundwater through the pumping pipe 4, two kinds of solutions which are mixed for reaction so as to precipitate a particulate substance are injected through the injection pipe 3 and mixed for reaction in the ground so as to precipitate the particulate substance and horizontally form an aquiclude 5 in the ground 1. An air injection pipe 9 which reaches the downside with respect to the aquiclude 5 in the ground 1 is buried, and air is injected into the ground 1 on the downside with respect to the aquiclude 5, so that the degree of unsaturation in the ground can be increased.
AOKI MASAMICHI
UCHIDA AKIHIKO
NAKAJIMA TOMOHIRO
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