To provide an injection chemical enabling injection of a large volume of chemicals in a wide area, an earth-and-sand soil improving method using the injection chemical, and a construction management method of simply confirming an improvement effect by measuring an electric specific resistance after chemical injection.
According to the earth-and-sand soil improving method of injecting the injection chemical prepared by blending a principle material of a colloidal solution containing silica particles with a gelatinizer into an earth-and-sand soil, the injection chemical showing pH 1.5-2 is prepared by setting the silica particle concentration of the principle material, a gelatinizing time for bring about a sand gel state, and an electric specific resistance in the sand gel state. This injection chemical is injected into the earth-and-sand soil to improve the earth-and-sand soil into a soil having prescribed liquefaction strength. In improvement work, the electric specific resistance in a soil improvement area is measured to confirm an improvement effect in implementation of the construction management method in a simple manner.
KUSAKABE SHIN
TAKAHASHI KAZUNARI
| JPH11336065A | 1999-12-07 | |||
| JPH093871A | 1997-01-07 | |||
| JPH11241336A | 1999-09-07 | |||
| JPS59122618A | 1984-07-16 | |||
| JPH06146261A | 1994-05-27 | |||
| JPH10121457A | 1998-05-12 | |||
| JPH0718660A | 1995-01-20 | |||
| JP2001241031A | 2001-09-04 | |||
| JPH0841860A | 1996-02-13 | |||
| JPH1137997A | 1999-02-12 |