摘要
土的弹性波速度是非常重要的力学参数,可用于场地类别划分、场地地震反应分析以及判别砂土、粉土、黄土液化、黄土震陷等。准确测得场地波速资料是进行土工设计和预测岩土地震灾害的关键技术环节。本文收集了甘肃地区地震安全性评价和小区化实测原位波速资料,分类指出了存在的问题,以反面案例的形式给出了波速数据处理时应注意的问题和分析方法。
As very important mechanical parameters of soil, velocities of elastic waves can be used for site classification, seismic response analysis and discrimination of sandy soil and loess liquefaction, and loess vibration subsidence. In geotechnical design and earthquake hazard prediction it is the key to measure wave velocity accurately for construction sites. In this paper we collect the data of in situ wave velocity from seismic safety evaluation and earthquake micro-zoning in Gansu province, and point out the current problems in different categories. Finally, based on some lessons we have learned in the past, we provide some suggestions on the analysis methods for processing wave velocity data.
出处
《震灾防御技术》
CSCD
2013年第1期81-89,共9页
Technology for Earthquake Disaster Prevention
基金
甘肃省地震局(中国地震局兰州地震研究所)地震科技发展基金(2011Q06)
中国地震局地震预测研究所基本科研业务专项项目(2011IESLZ04)
关键词
原位测试
剪切波速
纵波速度
问题分析
In situ test
Shear wave velocity
Pressure wave velocity
Analysis of problem
