Simplified method to characterize municipal solid waste properties under seismic conditions
Simplified method to characterize municipal solid waste properties under seismic conditions
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DOI：
10.1016/j.wasman.2008.05.008
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发表时间：
2009-02-01
期刊：
影响因子：
8.1
通讯作者：
Savoikar, Purnanand
中科院分区：
文献类型：
--
作者：
Choudhury, Deepankar;Savoikar, Purnanand
由于地震对垃圾填埋场的破坏性，垃圾填埋场在地震中的响应受到了世界范围的关注。各国的安全守则规定和条例要求在设计新的填埋场以及在地震带扩建现有填埋场时，纳入防止地震危害的安全措施。动力特性的确定是城市固体废物材料在地震条件下分析的第一步。垃圾填埋场的组成和性质，如单位重量，剪切波速，剪切强度，归一化剪切模量，和材料阻尼，是最重要的动态特性，有直接影响的地震行为的垃圾填埋场，需要仔细评估。在本研究中，广泛的数据的基础上提供的各种研究人员，填埋材料的动态特性进行了分析，使用曲线拟合技术，并提出了简单的数学方程。在可能的情况下，将所得的剖面与实验室和现场数据进行比较。这些特性很难概括，并且可能因填埋场而异。因此，建议简单的数学模型，这些垃圾填埋场的属性，可以用来设计城市固体废物填埋场在地震条件下，在没有垃圾填埋场的具体领域的数据。(C)2008爱思唯尔有限公司保留所有权利。
The response of municipal solid waste landfills during earthquakes is gaining worldwide attention due to the devastating nature of earthquakes on landfills. Safety code provisions and regulations of various countries require the incorporation of safety measures against seismic hazards in the design of new landfills, as well as for extensions of existing landfills in seismic zones. Determination of dynamic properties is the first step for the analysis of municipal solid waste materials under seismic conditions. Landfill composition and properties, like unit weight, shear wave velocity, shear strength, normalized shear modulus, and material damping, are the most important dynamic properties that have direct impact on the seismic behaviour of landfills, and need to be evaluated carefully. In the present study, based on the extensive data provided by various researchers, the dynamic properties of landfill materials are analyzed using curve-fitting techniques, and simple mathematical equations are proposed. The resulting profiles are compared with laboratory and field data wherever possible. These properties are difficult to generalize and may vary from landfill to landfill. Hence, the proposed simple mathematical models for these landfill properties can be used to design municipal solid waste landfills in the absence of landfill-specific field data under seismic conditions. (C) 2008 Elsevier Ltd. All rights reserved.