堆积层滑坡物理力学参数改造及其稳定性控制研究

The Transformation and Stability Control Reaseach of the Landslide Physical and Mechanical Parameters

本文运用动力固结法对滑坡土体物理力学参数进行改造,得出不同物理力学参数与稳定系数的关系。滑坡的稳定系数在含水率在10-15%时达到最大值。因此滑坡防治时,在含水量为10-15%时,取不同物理力学参数值,进行防治优化。防治的重点在于在滑坡上寻求某个防治区域,即满足滑坡的稳定性的要求,又要使治理滑坡的费用最小。综合多方面考虑,控制滑坡含水量在14.44%时,强夯三次剪出口位置能满足要求。

This paper transforms the landslide physical mechanical parameters using dynamic consolidation method and obtained the relationship of physical and mechanical parameters and the stability coefficient.Landslide stability coefficient is the greatest at the moisture content of 10-15%.Therefore,different physical and mechanical parameters should be taken to optimize landslide prevention at the moisture content of 10-15%.The prevention and control should focus on seeking of a range of prevention and control i.e.the cost is the smallest when the requirement of landslide stability is met.After a systematic consideration,at the moisture content of 14.44%,tamping three times at the shear outlet surface can meet the requirements.