墙后路基填土分层碾压打桩侧向压实技术

Bedded-earth-pile lateral rolling technique of filling road base behind retaining wall

为了提高路基填土的压实效果 ,推导了墙后填土表面施加均布荷载时填土体孔隙比变化的关系式 ;基于对填土打桩侧向压实机理分析 ,得到了填土体工程压实度 =f (初始压实度 ,含水量 ,天然容重 ,打桩间距 ,桩径 )这一状态函数的量化表达式。

The authors deduce the equation of void ratio variation under normal uniform load above bedded earth behind retaining wall in this paper. On the basis of analysis of lateral rolling mechanism after inserting pile to filling, the authors give the expression equation of engineering rolling degree to filling, i.e. Engineering compaction degree is a state function of initial compaction degree, water content, natural density, distance between piles and pile diameter.