Rapid Excavation and Support Application of Composite Roof Roadway in Tangshangou Coal Industry Co.,Ltd.
In order to improve the excavation speed of three main roadways of 1120 west in Tangshangou Coal Mine,the horizontal track roadway of 1120 west in Tangshangou Coal Mine was taken as the research object.Based on a comprehensive study of the engineering geological conditions of the roadway and the original roadway support situation,the main factors affecting the excavation speed of the roadway were analyzed and determined.A targeted optimization scheme based on anchor rod and cable combined support was proposed.The feasibility of the scheme was verified using FLAC3D numerical simulation analysis technology,and on-site engineering tests were conducted.The on-site application results show that the use of anchor rod and cable combined support technology can achieve safe and rapid excavation of roadways.
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