According to the former solution of spherical or columnar hole about material strain-softening model, the model for grout bulb expansion is formed in compaction grouting.
根据他人已有的关于材料应变软化模型的球(柱)形孔扩张问题的解，建立了压密灌浆中的浆泡扩张模型。
Also it can effect good compaction in cohesive material, There-fore the machine an ideal equipment for expressway. mining road, embankment, sea port and industrial sites.
本机是高速公路、矿山道路、大型堤坝、重要港口及工业场地等工程中的基础压实的理想设备。
There are many factors influence the deformation of aggregate, such as material characteristic, content of water, degree of compaction, test method .
影响砂砾石的变形的因素有很多，如砂砾石的材料特性、含水量、密实度、实验方法等。
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