Prevention and treatment method for coal wall caving of coal face

The coal face coal wall caving prevention and control method comprises the following steps that S1, a drilling machine and a pump set are arranged in a drill site; s2, a first drill hole is formed in a roof rock stratum above the coal seam through the drilling machine; s3, the pump set is used for i...

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Bibliographic Details
Main Authors KANG HONGPU, WANG PENG, ZHAO KAIKAI, SUN XIAODONG, JIANG PENGFEI, FENG YANJUN, LIN PENGHAO, ZHENG YANGFA
Format Patent
LanguageChinese
English
Published 08.03.2024
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Summary:The coal face coal wall caving prevention and control method comprises the following steps that S1, a drilling machine and a pump set are arranged in a drill site; s2, a first drill hole is formed in a roof rock stratum above the coal seam through the drilling machine; s3, the pump set is used for injecting water into the first drill hole so that hydraulic fracturing can be conducted on the roof rock stratum; s4, a second drill hole is formed in the coal seam through the drilling machine; and S5, reinforcing slurry is injected into the second drill hole through the pump set so that the reinforcing slurry can reinforce the coal seam after being diffused in the coal seam. Therefore, the coal face coal wall caving prevention and control method has the advantages of improving coal mining efficiency and safety. 本发明的采煤工作面煤壁片帮防治方法,包括以下步骤:S1、在钻场内布置钻机和泵组;S2、利用所述钻机在煤层上方的顶板岩层内开设第一钻孔;S3、利用所述泵组向所述第一钻孔内注水以便对所述顶板岩层进行水力压裂;S4、利用所述钻机在所述煤层内开设第二钻孔;S5、利用所述泵组向所述第二钻孔内注入加固浆液以便所述加固浆液在煤层中扩散后可对所述煤层进行加固。因此,根据本发明的采煤工作面煤壁片帮防治方法具有提高煤炭开采效率和
Bibliography:Application Number: CN202311785900