Research on Surrounding Rock Control Technology of Roadway Driving Through Water-conducting Fault During Deep Mining
The 12201 transportation roadway is excavated along the floor of No.12 coal seam in the deep,there are DF6-1 and DF6-3 water-conducting cracks in the roadway excavation area.Although the advanced treatment is carried out,there will still be water pouring in the roadway under the influence of disturbance,in addition,the surrounding rock of soft rock is broken,which brings significant constraints to the support work of roadway excavation through fault surrounding rock.Combined with the field conditions,it is proposed to improve the bearing capacity of the surrounding rock by strengthening the surrounding rock and plugging the water-conducting cracks,and reduce the influence of water on the broken surrounding rock.After field application,during the period of 12201 transportation roadway passing through the fault,there was no water spray in the surrounding rock,and the deformation of the roof and floor of the roadway and the two sides was small,which realized the effective control of the deformation of the surrounding rock of the water-conducting fault of the roadway.
Deep miningWater-conducting faultBroken surrounding rockRoadway supportPre-groutingWater flowing fracture
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