FBG Technology Based on Experimental Studies on Cracking of Expansive Soil Due to Dehydration
详细信息
- 责任者：Zhang Dan (School of Earth Sciences and Engineering ; Nanjing University ; Nanjing 210093 ; China) ; Xu Hongzhong
- 刊名：Journal of Engineering Geology
- 出版年：2012
- 卷期：20(1)
- 关键词：膨胀土 ; expansive soil ; 水力压裂 ; hydraulic fracturing
- 页码：p.103-108
- 图表：7 illuys., 1 table, 12 refs.
- 分类号：1702
- issnNo：ISSN1004-9665
- isbnNo：CN11-3249/P
摘要
This paper is to find out the strain property,distribution and its variation of the saturated expansive soil during its shrinking and cracking process under the condition of dehydration.Based on the measured strains and their variation,the paper obtained the characteristics of soil stain distribution and its temporal-spatial evolution process,especially the strain distribution on and around the first fissures.It is found that the soil shows global shrinkage initially with the reduction of soil moisture content.Afterwards,differentiation of the soil stains occurred,showing alternate distribution of tension and compression.
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