Seismic Performance of Solid Waste Landfill

固体废物填埋场的抗震性能

• 批准号: 9416240
• 负责人: Behnam Hushmand
• 金额: $ 4.91万
• 依托单位: Hushmand Associates
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-03-01 至 1996-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9416240&HistoricalAwards=false
• 关键词: Seismic; Performance; Solid; Waste; Landfill

9416240 Hushmand On October 9, 1993, new Federal minimum design standards for Municipal Solid waste landfill Facilities (MSWLF) were released which impacted the seismic design of landfills. However, these new standards combined little information and almost no guidelines for establishing the seismic performance of landfills. On January 17, 1994, the Northridge earthquake provided the first recorded set of strong accelerations in the OII landfill, the only landfill in the United States which is instrumented with strong-motion recorders, thus providing a rare opportunity to analyze a well-documented case history, and to develop guidelines for the seismic performance of landfills. The objective of the proposed research is to analyze the strong motion recordings and the surveyed displacements at the OII landfill after the 1994 Northridge earthquake. Several types of dynamic analyses will be used to calculate the ground accelerations, and the permanent ground displacements. The specific objectives are to determine the wave velocity and the damping properties of landfill materials that simulate the landfill response. These backfitted data will be compared to the wave velocities that are measured from geophysical and surface wave measurement techniques, in an effort to assess the applicability of the wave velocity measurements in extremely heterogeneous media. The method of analysis will include conventional engineering methods (e.g. equivalent linear methods such as QUAD4) and more advanced plasticity models and finite element models such as LINOS. Comprehensive models will be developed that include nonlinear behavior of landfill materials, two dimensional geometries, and wave propagation and reflection. Recommendations will be made for the optimal way to monitor the seismic performance of landfills. The data collected and generated during this research will be in digital format to the database of the Southern California Earthquake Center at the University o f Southern California. ***

9416240胡什曼德1993年10月9日，新的联邦生活垃圾填埋设施最低设计标准(MSWLF)发布，这对垃圾填埋场的抗震设计产生了影响。然而，这些新标准结合了很少的信息，几乎没有建立垃圾填埋场抗震性能的指导方针。1994年1月17日，北岭地震在OII垃圾填埋场提供了第一组有记录的强震，OII垃圾填埋场是美国唯一配备强震记录器的垃圾填埋场，因此提供了一个难得的机会来分析记录良好的病例历史，并为垃圾填埋场的抗震性能制定指南。拟议研究的目的是分析1994年北岭地震后OII垃圾填埋场的强震记录和测量的位移。将使用几种类型的动力分析来计算地面加速度和永久地面位移。具体目标是确定模拟垃圾填埋反应的垃圾填埋场材料的波速和阻尼性。这些反拟合数据将与地球物理和面波测量技术测量的波速进行比较，以努力评估波速测量在极端不均匀介质中的适用性。分析方法将包括传统的工程方法(例如，QUAD4等效线性方法)和更高级的塑性模型和有限元模型，如Linos。将开发包括垃圾填埋场材料的非线性行为、二维几何形状以及波的传播和反射的综合模型。将就监测堆填区抗震性能的最佳方式提出建议。在这项研究中收集和产生的数据将以数字格式存入南加州大学南加州地震中心的数据库。***