compaction sand pile

基本解释

The vibroflotation sand compaction pile is an economical, reasonable ground treatment method, and it is recommended to use in this substation foundation.
推荐采用振冲挤密砂桩是较为经济合理的一种方法。
A new method is put forward for railway foundation consolidation through introduction of sand-gravel compaction pile applied in consolidation of a railway foundation.
振动挤密砂石桩复合地基的应用已取得较好效果，但其上部常存在软弱土层或夹层、厚薄不一，直接影响了该方法的推广和效应。
And the most important is that the drilling pile not only haven't compaction effects while holing , but also it cannot eliminate the sand liquefaction and loess collapsibility.
而且最主要的是灌注桩在成孔过程中，不仅无挤土效应，而且无法消除砂土液化和黄土的湿陷性。