Analysis of Space-Time Effect on Stability for Diaphragm Walls Under Trenching Construction

WANG Xiaohua; JIA Wenbiao; HU Changming; LU Qian; DU Yipu

doi:10.13204/j.gyjzG20120504

Volume 52 Issue 2

Feb. 2022

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WANG Xiaohua, JIA Wenbiao, HU Changming, LU Qian, DU Yipu. Analysis of Space-Time Effect on Stability for Diaphragm Walls Under Trenching Construction[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(2): 101-107. doi: 10.13204/j.gyjzG20120504

Citation:

WANG Xiaohua, JIA Wenbiao, HU Changming, LU Qian, DU Yipu. Analysis of Space-Time Effect on Stability for Diaphragm Walls Under Trenching Construction[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(2): 101-107. doi: 10.13204/j.gyjzG20120504

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Analysis of Space-Time Effect on Stability for Diaphragm Walls Under Trenching Construction

doi: 10.13204/j.gyjzG20120504

1. China Railway the First Group Construction & Installation Engineering Co., Ltd, Xi'an 710055, China;
2. School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;
3. Shaanxi Key Laboratory of Geotechnical and Underground Space Engineering, XAUAT, Xi'an 710055, China

Received Date: 2020-12-05
Available Online: 2022-06-30
Publish Date: 2022-02-20

Abstract

Abstract

The stability for the trench of diaphragm walls is related to the safety and quality of trenching construction. To ensure the stability of trenches, the stress variation in the earth of trench walls was analyzed under trenching construction, the stability conditions and influencing factors of trench walls were discussed, the influence of space-time effect was discussed emphatically, and the influence of space-time effect was verified by the measured data. The results showed that: the time effect had a significant effect on the stability of the trench. Increasing the mass density of slurry and the level of mud and could improve the trench stability, and the latter was more effective. The shallow soil in the middle of the trench was more disturbed during construction of trenching, and the lateral displacement, the subsidence of the earths surface and the earth pressure appeared a certain spatial effect.
- diaphragm wall,
- stability of trench wall,
- stress in the earth,
- influence factor,
- space-time effect

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References(16)

References

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