The mechanical compaction is the main cause of porosity loss.
压实作用是造成砂岩孔隙度降低的最主要因素。
By filling the compacted into artificial consolidate and mechanical compaction of the two.
所填土的压实分为人工夯实和机械压实两中。
By filling the compacted into manual and mechanical compaction consolidating the two, for different construction methods have different requirements.
所填土的压实分为人工夯实和机械压实两中，对不同的方法有不同的施工要求。
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