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| Simulation study on floor heave control of hard roof roadway |
| Li Zhong |
| Lu ' an Coal Division, Jinneng Holding Coal Group. Changzhi 047500, China |
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Abstract In order to effectively control the floor heave of roadway under the influence of dynamic pressure in hard roof mining roadway, the 5103 mining roadway of Tongfa Dongzhouyao Mine was taken as the research background, the feasibility of strengthening the support strength of two sides and installing the floor heave control technology of bottom angle bolt was verified by physical similarity simulation test. The field industrial test showed that the bottom drum control scheme was safe and reliable, which provided practical experience for the bottom drum control of mining roadway.
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