Roadway Supporting Parameters Analysis and Process Optimization for Excavation and Bolting Integration

To solve the problem about low efficiency of roadway excavation, the paper takes conveyor roadway of E1310 working face in Gaohe Mine as engineering background, excavation and bolting integration technology is used to improve the efficiency of roadway excavation. The deformation characteristics of surrounding rock under different supporting parameters were simulated and analyzed by FLAC^3D software, and the parameters of roadway supporting in the construction of excavation and bolting integration are determined. Then, this paper optimizes labor organization and operating sequence for excavation and bolting integration and proposes the labor organization of “three seven-hour shifts and one three-hour shift”, and the construction process achieves maximum parallel operation. The measured results show that advance per shift can be more than 4 m, advance per day can be more than 12 m, and advance per month can be about 400 m by using excavation and bolting integration technology, which increases the excavation efficiency to a great extent.