| 屈晓明.考虑参数敏感性的软弱基底排土场边坡稳定性建模分析[J].矿产勘查,2024,15(S2):308-312 |
| 考虑参数敏感性的软弱基底排土场边坡稳定性建模分析 |
| Modeling and analysis of slope stability of soft foundation dump considering parameter sensitivity |
| 投稿时间：2024-07-22 |
| DOI：10.20008/j.kckc.2024s2042 |
| 中文关键词: 参数敏感性 软弱基底 排土场 边坡 稳定性 |
| 英文关键词: parameter sensitivity weak basement dump slope stability |
| 基金项目: |
|
| 摘要点击次数: 0 |
| 全文下载次数: 0 |
| 中文摘要: |
| 为了提高软弱基底排土场边坡稳定性，考虑到参数敏感性，本文提出软弱基底排土场边坡稳定性建模方法。考虑参数空间变异性，构建软弱基底排土场边坡可靠度的影响分布模型，结合模型修正的空间变异特征分析，实现对软弱基底排土场边坡的随机场单元数据拟合，采用回归分析方法计算软弱基底排土场边坡失效概率，通过土体参数分布类型建立软弱基底排土场边坡的安全系数拟合模型，基于乔列斯基分解方法，实现对边坡稳定性的参数敏感特征分析，实现软弱基底排土场边坡稳定性建模。测试结果表明，采用该方法进行软弱基底排土场边坡稳定性建模，边坡失效概率与黏聚力具有正相关关系，计算的安全系数之间具有一定的相关性，参数拟合性能较好。 |
| 英文摘要: |
| In order to improve the slope stability of waste dump on soft foundation，considering the sensitivity of parameters，a slope stability modeling method of waste dump on soft foundation is proposed. Considering thespatial variability of the parameters，the influence distribution model of the slope reliability of the dump with soft foundation is constructed. Combined with the spatial variability analysis of the model modification，the random field unit data fitting of the dump slope with soft foundation is realized，and the failure probability of the dump slope with soft foundation is calculated by regression analysis method，Based on the distribution of soil parameters， the safety factor fitting model of the dump slope with weak foundation is established. Based on the Cholesky decomposition method，the parameter sensitive characteristics of the slope stability are analyzed，and the stabilityof the dump slope with weak foundation is established. The test results show that the slope failure probability has a positive correlation with the cohesion， the calculated safety factors have a certain correlation， and the parameter fit⁃ting performance is good. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |