Field Shear Tests and Numerical Analysis on Cemented Surfaces Between Concrete and Bedrocks

SHEN Wuqin; WU Changjiang; CAO Xiaojian; WEI Shengyang

doi:10.13204/j.gyjzG22052107

Volume 53 Issue 8

Aug. 2023

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SHEN Wuqin, WU Changjiang, CAO Xiaojian, WEI Shengyang. Field Shear Tests and Numerical Analysis on Cemented Surfaces Between Concrete and Bedrocks[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(8): 168-175. doi: 10.13204/j.gyjzG22052107

Citation:

SHEN Wuqin, WU Changjiang, CAO Xiaojian, WEI Shengyang. Field Shear Tests and Numerical Analysis on Cemented Surfaces Between Concrete and Bedrocks[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(8): 168-175. doi: 10.13204/j.gyjzG22052107

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Field Shear Tests and Numerical Analysis on Cemented Surfaces Between Concrete and Bedrocks

doi: 10.13204/j.gyjzG22052107

1. School of Transportation and Civil Engineering, Nantong University, Nantong 226019, China;
2. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China

Received Date: 2022-05-21
Available Online: 2023-10-17

Abstract

Abstract

Based on gravity anchorage foundations of Ganjiang Highway Bridge situated on weakly weathered argillaceous siltstone, large-scale shear tests on the site were conducted to study shear mechanisms, failure modes, deformation characteristics and shear strength parameters of cemented interfaces, aimed at cemented interfaces with different roughnesses between anchorage foundation concrete and bedrock. Simultaneously, to effectively estimate the effect of cemented surface roughness on shear strength, characteristic parameters of random distribution were firstly introduced to quantify the cemented interface roughness, and the Monte-Carlo method was simulated the undulating pattern of cemented interfaces. Then, numerical simulation analysis on shear tests was implemented to study shear strength with different cemented interface roughnesses. Eventually, a new evaluation method for cemented interface shear strength was proposed based on numerical simulations with random contact interfaces. In addition, the results from numerical simulations were compared with the data by direct shear tests on the site, and the comparison results indicated they were highly consistent.
- cemented interface,
- field shear test,
- failure mode,
- shear strength,
- random contact interface

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References(17)

References

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