高喷灌浆加固抛石填海软基

Strengthening the Riprapped and Clay Filled Soft Foundation with High Pressure Jet Grouting Technology

高压旋喷灌浆法是本世纪７０ 年代发展起来的地基处理新技术，在砂性土和粘性土等软弱地层加固工程中已得到广泛应用，但在含有碎石的淤泥质土及穿过它对其下淤泥的加固尚少见，笔者简要介绍了采用钻灌分开两大工序的新双管法及其成功完成加固任务的事例。

The “High Pressure Swirl Jet Grouting Process”is one of the new foundation processing technology developed in 1970′s, which has been widely applied in the strengthening engineering on leak formations composed of sand clay or pure clay. However, only a few strengthening engineering are used in riprapped foundation with silt clay and the clay underneath. A kind of foundation processing engineering using the “ New Twin Tube Grouting Process ” is introduced, which adopts drilling and grouting separately. The process has been applied successfully.