层状边坡滑动边界强度参数取值方法研究

滑坡滑带土强度参数取值的准确性,决定了滑坡稳定性计算的可靠程度。因此获得准确、可靠的滑动边界强度参数至关重要。然而在实际情况中,由于取样位置试样的代表性,以及试样转运过程中保存条件的限制,现场所取得的滑带土在室内试验得到的强度参数已经不能完全反映真实环境下的抗剪强度。因此考虑软弱夹层、滑带土各种物理和力学指标间存在必然联系,并表现出特定的规律性,尝试通过试验,揭示指标间的关联规律,并建立了相关性好的关系式,据此评价滑动边界的抗剪强度参数。

BEDDED SLOPE SLIDING BOUNDARY STRENGTH PARAMETER SELECTION METHOD RESEARCH

The accuracy of landslide sliding zone soil strength parameter selection,deter-mines the reliability of the landslide stability calculation.So get accurate and reliable slip boundary strength parameters is very important.In reality,however,because of the inevita-ble in the process of sampling disturbance,style in the process of the sample transfer and storage condition is limited,the scene of sliding zone in indoor test of strength parameters can no longer be on behalf of the shear strength of the real environment.So weak interlayers, sliding zone soil,the soil there is a connection between the various physical and mechanical index,and showed a certain regularity,so through the experiments,reveal index between the association rule,and set up good correlation relation,on the basis of evaluation of shear strength parameters of sliding boundary.