compaction sand pile

基本解釋

The vibroflotation sand compaction pile is an economical, reasonable ground treatment method, and it is recommended to use in this substation foundation.
推薦采用振沖擠密砂樁是較為經(jīng)濟合理的一種方法。
A new method is put forward for railway foundation consolidation through introduction of sand-gravel compaction pile applied in consolidation of a railway foundation.
振動擠密砂石樁復合地基的應用已取得較好效果，但其上部常存在軟弱土層或夾層、厚薄不一，直接影響了該方法的推廣和效應。
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樁在成孔過程中，不僅無擠土效應，而且無法消除砂土液化和黃土的濕陷性。