Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Separation layer grouting method for controlling surface subsidence in coal mine
The invention discloses a coal mine separation layer grouting method for controlling surface subsidence, and the coal mine separation layer grouting method for controlling surface subsidence comprises the steps of S1, S2 and S3, S1, predicting the development position of a separation layer above a stope face, S2, according to the development position of the separation layer, punching and grouting the separation layer, s3, directional drill holes are formed in the earth surface above the stope face to drill grouting holes, grouting is conducted in the grouting holes, the grouting holes comprise a first sub-hole, a second sub-hole and a plurality of third sub-holes which communicate with one another, the first sub-hole is located in one side of the stop line and extends into the stable bed rock in the vertical direction, one end of the second sub-hole communicates with the first sub-hole, and the other end of the second sub-hole communicates with the third sub-hole; the second sub-hole faces the direction away from the first sub-hole and extends in the stoping direction, the second sub-hole is located in the stable bed rock above the separation space, and the multiple third sub-holes communicate with the second sub-hole, extend in the vertical direction and penetrate through the separation space. The separation layer grouting method for controlling the surface subsidence for the coal mine has the advantages of being simple in structure, stable, reliable, low in cost and the like.
本发明公开了一种煤矿用控制地表沉陷的离层注浆方法，所述煤矿用控制地表沉陷的离层注浆方法包括步骤S1、步骤S2和步骤S3，S1：预测回采工作面上方的离层的发育位置，S2：根据离层的发育位置，对离层打孔注浆，S3：在回采工作面上方的地表上布设定向钻孔以钻进注浆孔，并在注浆孔内注浆，注浆孔包括连通的第一子孔、第二子孔和多个第三子孔，第一子孔位于停采线的一侧且沿上下方向延伸至稳定基岩内，第二子孔的一端与第一子孔连通，第二子孔朝向远离第一子孔的方向且沿回采方向延伸，第二子孔的位于离层空间的上方的稳定基岩内，多个第三子孔均与第二子孔连通且多个第三子孔沿上下方向延伸且贯穿离层空间。本发明的煤矿用控制地表沉陷的离层注浆方法具有结构简单、稳定可靠、成本低廉等优点。
Separation layer grouting method for controlling surface subsidence in coal mine
The invention discloses a coal mine separation layer grouting method for controlling surface subsidence, and the coal mine separation layer grouting method for controlling surface subsidence comprises the steps of S1, S2 and S3, S1, predicting the development position of a separation layer above a stope face, S2, according to the development position of the separation layer, punching and grouting the separation layer, s3, directional drill holes are formed in the earth surface above the stope face to drill grouting holes, grouting is conducted in the grouting holes, the grouting holes comprise a first sub-hole, a second sub-hole and a plurality of third sub-holes which communicate with one another, the first sub-hole is located in one side of the stop line and extends into the stable bed rock in the vertical direction, one end of the second sub-hole communicates with the first sub-hole, and the other end of the second sub-hole communicates with the third sub-hole; the second sub-hole faces the direction away from the first sub-hole and extends in the stoping direction, the second sub-hole is located in the stable bed rock above the separation space, and the multiple third sub-holes communicate with the second sub-hole, extend in the vertical direction and penetrate through the separation space. The separation layer grouting method for controlling the surface subsidence for the coal mine has the advantages of being simple in structure, stable, reliable, low in cost and the like.
本发明公开了一种煤矿用控制地表沉陷的离层注浆方法，所述煤矿用控制地表沉陷的离层注浆方法包括步骤S1、步骤S2和步骤S3，S1：预测回采工作面上方的离层的发育位置，S2：根据离层的发育位置，对离层打孔注浆，S3：在回采工作面上方的地表上布设定向钻孔以钻进注浆孔，并在注浆孔内注浆，注浆孔包括连通的第一子孔、第二子孔和多个第三子孔，第一子孔位于停采线的一侧且沿上下方向延伸至稳定基岩内，第二子孔的一端与第一子孔连通，第二子孔朝向远离第一子孔的方向且沿回采方向延伸，第二子孔的位于离层空间的上方的稳定基岩内，多个第三子孔均与第二子孔连通且多个第三子孔沿上下方向延伸且贯穿离层空间。本发明的煤矿用控制地表沉陷的离层注浆方法具有结构简单、稳定可靠、成本低廉等优点。
Separation layer grouting method for controlling surface subsidence in coal mine
煤矿用控制地表沉陷的离层注浆方法
XING WANLI (Autor:in) / YANG XIANGLU (Autor:in) / MO ZHENGHU (Autor:in) / LUO SEN (Autor:in) / WANG YUANYUAN (Autor:in) / HE XIAOLONG (Autor:in) / MA YANNI (Autor:in)
26.07.2024
Patent
Elektronische Ressource
Chinesisch
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