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Overlying strata separation layer grouting surface subsidence control method and grouting device thereof
The invention discloses an overlying strata separation layer grouting surface subsidence control method and a grouting device thereof, and relates to the technical field of coal mining, the overlying strata separation layer grouting surface subsidence control device comprises a grouting pump, a vacuum pump is arranged on one side of the grouting pump, a vertical pumping pipe is connected to one side of the grouting pump in a sleeving mode, an overlying rock-soil layer is arranged on the bottom side of the grouting pump, and a vertical pumping pipe is arranged on the other side of the grouting pump. The bottom side of the overlying rock-soil layer is a thick and hard rock layer, the vertical pumping pipe is in inserted fit with the overlying rock-soil layer and the thick and hard rock layer, the bottom side of the thick and hard rock layer is provided with a separation layer space, the bottom side of the separation layer space is provided with a caving top plate, and the bottom side of the caving top plate is provided with a hydraulic support. A directional drilling technology and a vacuum negative pressure technology are adopted, grouting is carried out on the separation layer space, and the ultra-long pumping requirement and the supporting settlement reduction requirement are met; it is guaranteed that no impurity is contained in grout in the grouting process, pipeline blockage is avoided, and the grouting quality is guaranteed.
本发明公开一种覆岩离层注浆地表沉陷控制方法及其注浆装置，涉及煤矿开采技术领域，包括注浆泵，所述注浆泵的一侧设置有真空泵，所述注浆泵的一侧套接有立式泵送管，所述注浆泵的底侧为上覆岩土层，所述上覆岩土层的底侧为厚硬岩层，所述立式泵送管和上覆岩土层、厚硬岩层插合，所述厚硬岩层的底侧设置有离层空间，所述离层空间的底侧设置有垮落顶板，所述垮落顶板的底侧设置有液压支架，本发明针对现有离层注浆技术进行改进，采用定向钻孔技术与真空负压技术，对离层空间进行注浆，满足超长泵送要求与支护减沉需求；保证注浆过程中浆液中不含有杂质，避免了管道的堵塞，保证注浆的质量。
Overlying strata separation layer grouting surface subsidence control method and grouting device thereof
The invention discloses an overlying strata separation layer grouting surface subsidence control method and a grouting device thereof, and relates to the technical field of coal mining, the overlying strata separation layer grouting surface subsidence control device comprises a grouting pump, a vacuum pump is arranged on one side of the grouting pump, a vertical pumping pipe is connected to one side of the grouting pump in a sleeving mode, an overlying rock-soil layer is arranged on the bottom side of the grouting pump, and a vertical pumping pipe is arranged on the other side of the grouting pump. The bottom side of the overlying rock-soil layer is a thick and hard rock layer, the vertical pumping pipe is in inserted fit with the overlying rock-soil layer and the thick and hard rock layer, the bottom side of the thick and hard rock layer is provided with a separation layer space, the bottom side of the separation layer space is provided with a caving top plate, and the bottom side of the caving top plate is provided with a hydraulic support. A directional drilling technology and a vacuum negative pressure technology are adopted, grouting is carried out on the separation layer space, and the ultra-long pumping requirement and the supporting settlement reduction requirement are met; it is guaranteed that no impurity is contained in grout in the grouting process, pipeline blockage is avoided, and the grouting quality is guaranteed.
本发明公开一种覆岩离层注浆地表沉陷控制方法及其注浆装置，涉及煤矿开采技术领域，包括注浆泵，所述注浆泵的一侧设置有真空泵，所述注浆泵的一侧套接有立式泵送管，所述注浆泵的底侧为上覆岩土层，所述上覆岩土层的底侧为厚硬岩层，所述立式泵送管和上覆岩土层、厚硬岩层插合，所述厚硬岩层的底侧设置有离层空间，所述离层空间的底侧设置有垮落顶板，所述垮落顶板的底侧设置有液压支架，本发明针对现有离层注浆技术进行改进，采用定向钻孔技术与真空负压技术，对离层空间进行注浆，满足超长泵送要求与支护减沉需求；保证注浆过程中浆液中不含有杂质，避免了管道的堵塞，保证注浆的质量。
Overlying strata separation layer grouting surface subsidence control method and grouting device thereof
一种覆岩离层注浆地表沉陷控制方法及其注浆装置
YANG KE (author) / YUAN LIANG (author) / LYU XIN (author) / HE XIANG (author) / LIU SHUAI (author) / CHI XIAOLOU (author) / FANG JUEJING (author) / WEI ZHEN (author) / ZHANG JIQIANG (author) / YU XIANG (author)
2022-04-15
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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