摘要
针对柔性防护系统条件下高陡岩质边坡的稳定性分析,利用弹塑性大变形理论,引入计算大变形问题更新的拉格朗日方法,考虑了具有断层的高陡岩质边坡的材料非线性和几何非线性,并利用强度折减法对边坡的安全系数进行计算分析。结果表明:考虑大变形理论下的柔性防护系统可更有效地提高边坡安全系数,在技术上和经济上都具有一定的优越性。
According to the problem of slope stability under flexible protection for the high steep rock slope stability, the updated Lagrangian method of elasto-plastic large deformation FEM is introduced and not only the nonlinearity of rock material but also the geometric nonlinearity in the process of failure stability is considered. And during calculation, the strength reduction coefficient is utilized to calculate the safety factor of the slope. The numerical analysis results show that the proposed flexible protection system considering large deformation is valid and applicable to the high steep rock slope engineering.
出处
《河北农业大学学报》
CAS
CSCD
北大核心
2009年第4期119-123,共5页
Journal of Hebei Agricultural University
基金
河北省科技攻关计划项目(05213706)
河北省教育厅科研项目(2004308)
