A Shear Strength Estimation Model of Weathered Sawtooth Structural Planes Based on Barton Formula

DENG Tao; WANG Zhongquan; LI Kun; QIAN Xiaolong; LIAO Jun; XIE Ming

doi:10.3724/j.gyjzG23010505

Volume 55 Issue 4

Apr. 2025

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2025 > 55(4): 142-147

DENG Tao, WANG Zhongquan, LI Kun, QIAN Xiaolong, LIAO Jun, XIE Ming. A Shear Strength Estimation Model of Weathered Sawtooth Structural Planes Based on Barton Formula[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(4): 142-147. doi: 10.3724/j.gyjzG23010505

Citation:

DENG Tao, WANG Zhongquan, LI Kun, QIAN Xiaolong, LIAO Jun, XIE Ming. A Shear Strength Estimation Model of Weathered Sawtooth Structural Planes Based on Barton Formula[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(4): 142-147. doi: 10.3724/j.gyjzG23010505

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A Shear Strength Estimation Model of Weathered Sawtooth Structural Planes Based on Barton Formula

doi: 10.3724/j.gyjzG23010505

1. College of Environment and Civil Engineering, Chengdu University of Technology, Chengdu 610059, China;
2. China MCC5 Group Corp. Ltd., Chengdu 610063, China;
3. Zigong City Construction Investment Development Group Co. Ltd., Zigong 643000, China

Received Date: 2023-01-05
Available Online: 2025-06-07
Publish Date: 2025-04-01

Abstract

Abstract

The method for obtaining the shear strength of structural planes through traditional indoor shear tests has the problems such as long period and significant influence of human factors. At the same time， the shear strength estimation model of sawtooth structural planes proposed by the existing research does not consider the influence of weathering. Through the weathering simulation tests， indoor shear tests and rebound tests of structural planes， the Barton formula was improved according to the test results， and the estimation model considering the influence of weathering was established. The results showed that the roughness coefficient （m_JRC） and the rock wall compressive strength （σ_JCS） were specified by the undulating angle and the wave velocity ratio of the sawtooth structural plane， respectively. There was an exponential relations between the undulating angle and m_JRC， and between the wave velocity ratio and σ_JCS. Based on the Barton formula， a shear strength estimation model of sawtooth structural plane considering the influence of weathering was established and verified by experimental data.
- sawtooth structural plane,
- weathering,
- shear strength,
- Barton formula,
- estimation model

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References(18)

References

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