地盤改良(1)

[VI-145] Development of New High Pressure Injection Mixing Methods with high cutting efficiency- Part2 : Verification by in-site trial test

〇Yasutoshi OHNO¹, Takayoshi Ito¹, Kenji Shimosaka², MItsuhiro Aktsuka², Hirokazu Akagi³ (1.TAIYO KISOKOGYO, 2.TODA Corporation, 3.Waseda University)

Keywords:Ground improvement, High Pressure Injection Mixing Methods , In-situ test, Abrasive material jet, Superabsorbent polymer

The authors are working on the development of a new high-pressure injection mixing method to reduce the volume of sludge by improving the cutting ability. In this development, instead of the conventional cutting method using water jet, we focused on improving the cutting ability by jetting superabsorbent polymer material that absorbed water and jetting sand as abrasive. In this report, we describe the results of in-site trial tests conducted to verify the cutting effects in situ.