断层泥强度参数与含水率关系研究

在岩质边坡工程中,断层往往是构成边坡失稳块体的边界条件,而断层的强度参数一般取决于断层泥的强度参数。断层泥的强度参数与含水率密切相关,通过对工程区典型断层泥强度参数与其含水率关系的研究,揭示了断层泥强度参数随含水率增加而不断降低过程中拐点的存在,即断层泥含水率低于此点时,其强度参数随含水率的增加降低迅速,当含水率高于此点时,其强度参数随含水率增加降低缓慢。最后建立了拐点含水率同试样塑液限之间的相互关系。

Study on relation between strength parameter and water content of gouge

In the engineering project of rocky slope, the faults are the boundary condition of destabilization mass. The strength parameters of fault depend on the gouge and the water content of gouge is an important factor for the strength parameters. There was an inflection point in the relation between the strength and water content of gouges. When the water content of gouge was less than the water content of inflection point, its strength parameters rapidly decreased with the increasing of water content. On the other hand, the strength parameters decreased gradually with the increasing of water content when the water content of gouge was greater than the water content of inflection point. At last, the relation between the water content of inflection point and the plastic and liquid limit was establised.