期刊论文

Zhou, K.-F.(zkf1978@126.com)

中文

中南大学学报(自然科学版)

1672-7207

2012

43

2

724-729

湖南省自然科学基金资助项目（11JJ4043）； 道路结构与材料交通行业重点实验室（长沙）开放基金资助项目（kfj090208,KFJ100306）； 湖南省高等学校科学研究项目（10C0353）；

本校为第一且通讯机构

利用FLAC3D数值计算软件建立顺层边坡的计算模型,分析注浆加固前后岩土体应力、变形响应。研究结果表明:当坡体结构面注浆后,边坡中的位移和应力云图变得较均匀,在边坡中无明显的位移或者应力突变现象,有利于边坡的稳定,但是,由于注浆加固区域的有限性,导致边坡的整体位移仍较大;计算观察点动态位移能够表征注浆加固前后边坡各部位在开挖过程中的变形响应,以及潜在滑移面剪出口位置;通过注浆加固后,边坡的拉剪塑性区明显减少,注浆能够较好改善岩体自身性能,提高其承担拉伸和剪切应力的能力。

Numerical calculation model was founded for stratified rock slope by numerical calculation program FLAC3D software, and the stress and deformation response of the rock mass before and after grouting reinforcement were analyzed. The analysis results show that, after grouting, the displacement and stress contour are more smooth, and there does not exist no stress and displacement mutation, which is good for the slope stability. But due to the limitation area of grouting, the whole displacement of the slope is still very large. The dynamic displacement can reflect the deformation response of slop...