| The high stress soft rock roadway support is one of the more complex research topics in the field of rock mechanics. Soft rock problem has always been of one of the major problems for coal and non coal mine production and construction. For a long time, the scholars which are engaged in the soft rock tunnel, soft rock slope road, and soft rock slope do a lot of work in high stressed soft rock roadway failure mechanism and way of supporting technology research. Due to the deep soft rock roadways which have complicated engineering geological conditions, differentiation, therefore, this study has certain difficulty.Surrounding rock joint fissure of Dongxiang copper mine body is more development. It is Easy to suction expansion and softening, loose, poor stability.Besides, engineering geology performance is poor and down hole often appears partial helping puking accident. What’s more, support cost of mining companies also remained high for a long period. To-235m in the middle as the research object, there are a sequence of researches. Firstly, geological hazard surveys were conducted with existing support methods in order to find out the Dongxiang copper mine roadway damage rule. Combined with geological characteristics of Dongxiang copper mine, it is to be needed to corresponding measures. Secondly, steel fiber concrete interior research was carried out. The’supporting parameters were carried out to theoretical calculation and numerical simulation. Lastly, it was studied to spray fiber concrete constructions.This paper thinks that supporting methods have problems through the Dongxiang copper mine and supporting research. The problems include spraying concrete thickness, poor quality and disabled rock bolt. Through spraying steel fiber concrete and rock bolt ways to get better effect. |
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