Experimental research deformation and shear strength on cement-treated expansive soil
[1]Wang Jianlei,Wang Yanqiao,Yang Guangdong,et al.Experimental research deformation and shear strength on cement-treated expansive soil[J].Journal of Zhengzhou University (Engineering Science),2016,37(04):62-66.[doi:10.13705/j.issn.1671-6833.2016.04.014]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
37
Number of periods:
2016 04
Page number:
62-66
Column:
Public date:
2016-08-31
- Title:
- Experimental research deformation and shear strength on cement-treated expansive soil
- CLC:
- -
- Abstract:
- In order to investigate the influence of dry wet cycling on the mechanical properties of cement modified expansive soil, direct shear tests were conducted on the expansive soil of the Taihu Road station foundation pit of Hefei Metro Line 1 with different cement mixing ratios and curing ages. The optimal cement mixing ratio and curing age were determined. Based on this, We conducted expansion and contraction deformation tests and direct shear tests on expansive soil and cement modified expansive soil under dry wet cycling conditions. The test results showed that the expansion and contraction deformation process of expansive soil is not completely reversible. With the increase of dry wet cycling times, the shear strength gradually decreases, the absolute expansion and contraction rate gradually increases, and ultimately tends to stabilize; After cement modification, the shear strength and water stability of expansive soil are significantly improved, while the expansion and contraction properties are significantly weakened; After cement modification, the influence of dry wet cycling on expansive soil is significantly reduced
- References:
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