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Experimental study on strength and water-stable behavior of unsaturated residual soils

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Date
2011
Author
Chen, Dongxia
Yang, Kai
Yang, Yan
Kang, Kaigui
陈东霞
康开贵
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  • 建筑土木-会议论文 [108]
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Abstract
Unsaturated granite residual soils are widely used as compacted soils in engineering structures such as slopes, embankments and backfills. Shear strength of soil are important in many geotechnical problems. A series of unconfined compression tests are carried out on unsaturated residual soils. Furthermore, since the residual soils are impaired in contact with water and have poor water-stable properties, slaking test of residual soil was conducted. Results of tests show effects of moisture content and cyclic wetting and drying on strength. Moisture content of soils is higher than the optimum moisture content of 2% for high strength and it is lower than optimum moisture content of 2% for good plasticity in Xiamen areas. Cyclic wetting and drying causes loss of unconfined compression strength and the maximum loss often occurs at the first cycle and then slowed down till the strength remains constant. In addition, wetting and drying cycles accelerate disintegration speed and shortened the whole disintegration. Soil in small dry density tends more easily to be disintegrated than one in high dry density. ? 2011 IEEE.
Description
Conference Name:2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011. Conference Address: Nanjing, China. Time:June 24, 2011 - June 26, 2011.
 
Nanjing University of Information Science and Technology; Peking University; Fudan University; Tsinghua University; Jilin University
Citation
2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011 - Proceedings, 2011:3159-3162
URI
https://dspace.xmu.edu.cn/handle/2288/85565

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