垃圾填埋场中土工膜拉伸稳定分析与控制  

Analysis and Control of Tension Stability on Geomembranes in Landfill

作　　者：孙洪军[1,2] 梁力[1] 赵丽红[2] 

机构地区：[1]东北大学资源与土木工程学院,沈阳110006 [2]辽宁工业大学土木建筑学院,锦州121001

出　　处：《武汉理工大学学报》2010年第2期60-62,67,共4页Journal of Wuhan University of Technology

基　　金：辽宁省自然科学基金(20052019)

摘　　要：为了防止垃圾填埋场中土工膜拉伸稳定破坏,通过土工膜不平衡摩擦力的分析,建立不平衡摩擦力下土工膜拉伸稳定模型,并推导了相应的计算公式。以某垃圾场边坡内铺设的土工膜为例,进行不同工况下土工膜的拉伸稳定验算。通过实例分析表明:应用不平衡摩擦力推导出的计算公式能够对填埋场中土工膜在边坡或不均匀沉降时进行拉伸稳定验算。该文同时提出了防止垃圾填埋场中土工膜拉伸破坏的几点控制措施。Stretch stability model of geomembrance under the imbalanced friction and the corresponding formula is gotten on the analysis of the imbalanced friction of geomembrane to prevent tension stability failure of geomembrane in landfill. Stretch stability checking computations of geomembrance under different working conditions are carried out, as an example of geomem- brance of the side slope of a landfill. The example analysis indicates that the formula derived from imbalaneed friction can carry on the stretch stability checking computations of geomembrance in landfill under the slope or the differential settlement. Several control measures are simultaneously proposed by preventing tension failure of geomembrane in landfill.

关 键 词：垃圾填埋场 土工膜 不平衡摩擦力 张力 拉伸稳定 

分 类 号：TU457[建筑科学—岩土工程]