| 吴玉辉,侯晋芳,闫澍旺.软土地基稳定性计算中抗剪强度指标的相关分析[J].水利学报,2011,42(1): |
| 软土地基稳定性计算中抗剪强度指标的相关分析 |
| Analysis of shear strength parameters in soft clay ground stability calculation |
| |
| DOI： |
| 中文关键词: 软黏土 十字板强度 统计回归分析 抗剪强度指标 箱筒型基础 |
| 英文关键词: soft clay vane shear strength regression analysis shear strength parameters cylindrical cais?
son foundation |
| 基金项目: |
|
| 摘要点击次数: 3591 |
| 全文下载次数: 295 |
| 中文摘要: |
| 基于摩尔-库伦抗剪强度公式，结合十字板强度与深度的关系，建立了抗剪强度指标的统计回归方程，通过方程可推算出地基土的两个抗剪强度指标。相比较传统的抗剪强度指标，本文推算出的强度指标更接近土体真实的抗剪强度，采用推算指标计算的安全系数更符合工程实际，而且还可用于新型箱筒型基础的稳定性和地基承
载力的分析。 |
| 英文摘要: |
| Based on Mohr-Coulomb theory，and using the linear relation between the vane shear strengthand depth，a method of converting in-situ vane shear strength into undrained shear strength parameter is presented. The shear strength parameters are obtained by statistical regression analysis with the anisotropy，lateral compression coefficient and the average consolidation degree in the soft clay taken into account. The comparison between shear strength parameters by CU test and those by UU test shows that the shear strength parameters obtained from regression analysis are very close to the real shear strength of soil. Then，the shear strength parameters are used to the stability calculation of soft clay slope and analysis of the cylindrical caisson foundation engineering. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |