Inversion iterative correction method for estimating shear strength 
of rock and soil mass in slope engineering

JIANG Wei; OUYANG Ye; YAN Jin-zhou; WANG Zhi-jian; LIU Li-peng

doi:10.16285/j.rsm.2021.1578

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Inversion iterative correction method for estimating shear strength of rock and soil mass in slope engineering

更新时间：2026-06-25

- Inversion iterative correction method for estimating shear strength of rock and soil mass in slope engineering
- Vol. 43, Issue 8, Pages: 2287-2295(2022)
- 作者机构：
  
  1. 三峡大学三峡库区地质灾害教育部重点实验室,湖北,宜昌,443002
  2. 三峡大学土木与建筑学院,湖北,宜昌,443002
  3. 中国水利水电科学研究院流域水循环模拟与调控国家重点实验室,北京,100038
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2021.1578
  CLC： TU43
- Online First：19 August 2022，
  
  Published：2022
- 稿件说明：
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JIANG Wei, OUYANG Ye, YAN Jin-zhou, et al. Inversion iterative correction method for estimating shear strength of rock and soil mass in slope engineering[J]. 2022, 43(8): 2287-2295.
DOI：

JIANG Wei, OUYANG Ye, YAN Jin-zhou, et al. Inversion iterative correction method for estimating shear strength of rock and soil mass in slope engineering[J]. 2022, 43(8): 2287-2295. DOI： 10.16285/j.rsm.2021.1578.

摘要

针对已滑动或有明显变形的边坡，取定稳定系数值进行反演分析是确定岩土体抗剪强度的重要手段。当边坡滑动面穿越多层岩土体时，盲目地抗剪强度试算反演明显不合理。为解决此问题，构造以多层岩土体抗剪强度为输入，以GeoSlope计算得到的稳定系数、滑面剪入口和剪出口位置为输出的BP神经网络，基于取定的稳定系数和现场测定的滑动面剪入口和剪出口位置，通过重复执行“逆向反推-误差校验-样本修正”实现岩土体抗剪强度的逆向迭代修正反演。工程实例验证结果表明，该方法获取的岩土体抗剪强度基本合理，可供小型边坡防护工程设计参考。该方法成功地规避了BP神经网络以已知信息为输入、以待反演参数为输出的传统做法在解决该问题时为欠定的局限性，对样本库样本数量的要求降低且具有较好精度。

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