A Study of Loess Seismic Subsidence of Tableland to the North Weihe River in Baoji City
详细信息
- 责任者：Guo Le (Third Railway Survey and Design Institute Group Corporation ; Tianjin 300251 ; China) ; Wang Jiading
- 刊名：Hydrogeology and Engineering Geology
- 出版年：2012
- 卷期：39(2)
- 关键词：马兰黄土 ; Malan Loess ; 地震响应 ; seismic response ; 陕西 ; Shaanxi Province
- 页码：p.61-65
- 图表：5 illus., 3 tables, 10 refs.
- 分类号：1702
- issnNo：ISSN1000-3665
- isbnNo：CN11-2202/P
摘要
With the support of the Baoji City seismic zonation project,a typical loess tableland site is selected and sufficient undisturbed loess samples at different depths(1 m,3 m,5 m) collected.Based on the establishment of mathematical function model of seismic subsidence curves,the basic parameters have been studied.The initial dynamic stress is affected significantly by and decreases with water content.The critical and ultimate dynamic stress is not sensitive to water content but decreases when it is greater than the plastic limit.The basic parameters show a negative relationship with void ratio,and there exists a critical one.
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