| The support of the soft roadway is a important but complicated technique problem in coal mining system and rock engineering field in future. With the intensity and depth of mine scale enlarging, the problem of the timbering and the maintenance of weak-rock roadway are becoming more and more aculeate.In many mine of our country, it is the key of the mine toward technological development and the safety in production. Thus it can be seen, the research of the combined supporting in soft rock entry under high stress and at the complex rock condition has the extremely significant theories meaning and value about the engineering.Based on many materials of predecessors and the combined supporting of Shi zui shan mine, the article studies a series of parameters which are the soft roadway, the complex rock condition, the depth portion of soft roadway, the critical depth and so on, and the engineering geology characteristic of 38 panel 600 tracks lanes of Shi zui Shan mine ,it indicate it belongs to the soft roadway u under high stress and at the complex rock condition. With the example of 38 panel 600 tracks lanes of Shi Zui Shan mine, presses the observation, the rock physical mechanics experiment, the theoretical analysis and the computer value simulation , has analyze characteristic and the mechanism.of the soft roadway which is under high stress and at the complex rock condition.According to the supporting principles and the mechanism of the asymmetrical combined supporting of soft rock which is made of blot-net-cable, propose the asymmetrical combined supporting of soft rock which is made of blot-net-cable and determined the basic parameter of its design.It provedt hat the roadway under high stress and at the complex rock condition uses the asymmetrical combined supporting of soft rock which is made of blot-net-cable may control the stability of soft roadway well, and obtains the quite satisfactory effect on technology and economic.
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