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| Study on sectional support technology of passing roadway |
| Wei Guoshuai |
| No. 1 Mine, Yangquan Coal Industry Group Corporation Ltd., Yangquan 045000, China |
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Abstract S8208 high-level drainage roadway of Yangmei No. 1 Mine was taken as the engineering background, engineering analogy, numerical simulation and engineering practice were used to study the lithologic composition types of different surrounding rocks by simulation. The sandstone-mudstone combination area to the sandy mudstone - coal - mudstone combination area wa the key point of support. By comparing the sectional support with the common support, the rationality of supporting the through-roadway by segmentation was proved. The support scheme was proposed and the scheme was verified by mine pressure monitoring, with good support effect.
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