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垃圾填埋场沉降及对HPDE衬垫膜影响的分析研究
Settlement of Landfills and Its Effect on HPDE Liner
【作者】 施建勇;
【Author】 SHI Jian-yong (Institute of geotechnical engineering,Hohai University)
【机构】 河海大学岩土工程研究所;
【摘要】 垃圾填埋场中垃圾土的变形是影响HPDE衬垫膜工作状态和其他结构安全的主要原因。文章通过垃圾土中有机物的降解试验和基本假设,推求了考虑垃圾土压缩和降解的变形计算公式,初步给定了计算参数的确定方法;进行了垃圾填埋场的离心模型试验和有限元计算,探讨了垃圾填埋场中垃圾体的变形分布规律和衬垫膜的变形特征;由弹性平衡条件推求了衬垫膜的受力计算和安全评价方法。
【Abstract】 The deformation of solid waste in landfills is important factor for safety of HPDE liner and other structure.Based on tests of degradation of organic part in solid waste and basic assumption the deformation calculation and determination parameters method were presented considering compression and degradation.By centrifuge model tests and FEM of landfills the deformation of solid and liner were analyzed.On elastic balance condition the calculation of maximum tensile force of liner and evaluation method of safety were studied.
【Key words】 deformation of solid waste; degradation of organic part; centrifuge model test; FEM; elastic balance;
- 【会议录名称】 盛世岁月——祝贺孙钧院士八秩华诞论文选集
- 【会议时间】2006-09-01
- 【分类号】X705