THE UNIFIED SOLUTION OF THE PLASTIC RELAXED PRESSURE'S COMPUTING OF SURROUNDING ROCKMASSES

This paper is based on the latest unified strength theory, and the plastic relaxed pressure's unified solution of surrounding rockmasses can be received according to the equation of Caquot. It can be widely used for different kinds of surrounding rockmasses, and the equation of Caquot is the special case. When the influence of σ2 is taken into account to different extent, a series of relaxed pressures of surrounding rockmasses can be got. According to the experimental results of the mechanical characteristics of rocks, the value of b can be defined, and the value of the surrounding rockmasses's pressure can be defined correctly.