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| Support design of bolt-mesh-anchor in haulage way of zone in Zhaoguan Mine |
| Wang Bing1, Gao Yuan2 |
| 1.Zhaoguan Mine of Shandong Energy Xinwen Mining Group, Dezhou 253000, China; 2. College of Resources and Safety Engineering, CUMTB, Beijing 100083, China |
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Abstract Based on existing problems of unreasonable support and ineffective construction in some roadways, geological conditions of haulage way in 1519 zone of Zhaoguan Mine was taken as an example. Maintenance features of surrounding rock was analyzed and bolt-mesh-anchor support in roadway was designed as well in order to improve environment of surrounding rock and construction technology. The result showed that maximum floor deformation was 138mm, and the biggest displacement of two sides was 145mm, which effectively controlled broken wall rock to guarantee its stability, exert bearing capacity of roadway surrounding rock to its extreme and satisfy replacement in mining area.
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