岩土力学2011，Vol.32Issue(6)：1697-1700,4.
垃圾填埋场衬垫系统穿刺性能评价
Evaluation of puncture performance of liner system for solid waste landfills
许四法 1张勇 1王哲1
作者信息
- 1. 浙江工业大学建筑工程学院,杭州,310032
- 折叠
摘要
Abstract
Because of the containing iron, glass and ceramics in solid waste, the geomembrane may be easily damaged and results in infiltrating into the surrounding ground and water; so it is very important how to evaluate the puncture performance of liner system.Taking into account the tensile strength.the thickness of geomembrane and the diameter of puncture probe, an evaluation formula of puncture resistance is presented based on the thin-walled structural mechanics theory; and the calculated values are compared with the experimental values.The results show that the calculation results of geomembrane are consistent with the puncture test results; but the calculation results of liner system composed of geomembrane and geotextiles are only about 70 percent of the test results.Geotextile used together with geomembrane could significantly improve puncture performance of liner system; so the geotextile should be spread on geomembrane for protection geomembrane.With an increase of tensile strength of geomembrane.puncture resistance becomes larger.Puncture resistance of geomembrans placed on compacted soil increases with ground strength and the trend is almost similar for different types of geomembranes.The results have certain referential value for the design of liner system.关键词
垃圾填埋场/衬垫系统/穿刺/抵抗力Key words
solid waste landfill/ liner system/ puncture/ resistance force分类
资源环境引用本文复制引用
许四法,张勇,王哲..垃圾填埋场衬垫系统穿刺性能评价[J].岩土力学,2011,32(6):1697-1700,4.
