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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
【摘要】 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。
【Abstract】 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.
【关键词】 墙后填土;
分层碾压;
桩;
侧向压实;
压实度;
【Key words】 rolling earth behind retaining wall; bedded earth rolling; pile; lateral rolling; compaction degree;
【Key words】 rolling earth behind retaining wall; bedded earth rolling; pile; lateral rolling; compaction degree;
【基金】 交通部优秀青年骨干教师基金项目;重庆市自然科学基金项目
- 【文献出处】 中国公路学报 ,CHINA JOURNAL OF HIGHWAY AND TRANSPORT , 编辑部邮箱 ,2000年02期
- 【分类号】U415.2
- 【被引频次】9
- 【下载频次】83