The test results indicate that it is feasible to use sand, plaster and cement to simulate rock body.
实验结果表明，用石英砂、石膏和水泥来模拟岩体介质是可行的。
Adopting sand pile, plaster pile and cement pile and etc to deal with soft and weak foundation which becomes compound foundation is a common method in foundation treatment.
采用砂石桩、土桩和水泥土桩等处理软弱地基，形成复合地基，是地基处理中常用的一种方法。
Quartz sand, lime, cement + plaster.
石英砂，石灰，水泥+石膏。
Quartz sand, lime, cement + plaster.
石英砂，石灰，水泥+石膏。
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