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Measurement of static and dynamic properties of municipal solid waste at Mavallipura landfill site, India
International Journal of Geo-Engineering ( IF 2.6 ) Pub Date : 2018-12-11 , DOI: 10.1186/s40703-018-0088-9
B. P. Naveen

Municipal solid waste (MSW) landfills have been widely constructed around the world for proper dispose of MSW. Geotechnical properties of MSW are difficult to determine because the heterogeneity, wide variation in particle size distribution and time dependent degradation. Knowledge of geotechnical properties of MSW is essential for the design and operation of landfills. Geotechnical properties of the MSW from landfills is very limited. The design of MSW landfills requires the selection of representative MSW material properties. Static and dynamic properties of emplaced MSW from landfill sites at Bangalore, India are evaluated. A comprehensive field and laboratory studies are conducted on MSW disposed at Mavallipura landfills that are in operation for about 12 years. Laboratory studies included: waste composition, water content, hydraulic conductivity, shear behavior for evaluation of static MSW properties. Field measurements included: cyclic plate load test and geophysical testing (multichannel analysis of surface waves) to assess the dynamic MSW properties at landfill site. Also, results obtained from cyclic plate load test is compared with numerical simulation like PLAXIS 2D. In additional, this paper presents a method for extrapolation of Vs30 for MSW site where subsurface data does not extend to a depth of 30 m. Based on the detailed field and laboratory test data, characterization of the small strain shear modulus and the shear wave velocity of MSW is an integral component of various seismic analyses, including site classification, analysis seismic response of landfill. The results in this study will provide guidance in the design and operation of the landfills in India.

中文翻译:

印度Mavallipura垃圾填埋场的城市固体废物静态和动态特性的测量

在世界范围内,已经广泛建设了市政固体废物(MSW)垃圾填埋场,以适当处置MSW。MSW的岩土性质很难确定,因为其不均一性,粒径分布的广泛变化以及与时间有关的降解。垃圾填埋场的岩土属性知识对于垃圾掩埋场的设计和运营至关重要。垃圾填埋场产生的城市固体废弃物的岩土特性非常有限。MSW垃圾填埋场的设计要求选择具有代表性的MSW材料属性。对来自印度班加罗尔垃圾填埋场的埋置式城市固体垃圾的静态和动态特性进行了评估。对在运营了约12年的Mavallipura垃圾填埋场处置的MSW进行了全面的现场和实验室研究。实验室研究包括:废物成分,含水量,导水率,剪切特性,用于评估静态城市固体废弃物的性能。现场测量包括:循环板载荷测试和地球物理测试(表面波的多通道分析),以评估垃圾填埋场的动态MSW特性。此外,将循环板载荷试验获得的结果与PLAXIS 2D等数值模拟进行比较。此外,本文还介绍了Vs的外推方法MSW站点为30,地下数据未扩展到30 m的深度。根据详细的现场和实验室测试数据,表征城市固体废弃物的小应变剪切模量和剪切波速度是各种地震分析不可或缺的组成部分,包括场地分类,垃圾填埋场地震响应分析。这项研究的结果将为印度垃圾填埋场的设计和运营提供指导。
更新日期:2018-12-11
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