西南地区急倾斜薄煤层充水采空区地面注浆堵水工艺研究及应用

doi:10.19286/j.cnki.cci.2024.05.012

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Abstract In order to study the control of the relevant coal mine goaf on the south bank of the water storage area of Jinsha Hydropower Station, the curtain grouting water plugging was selected as the control scheme. Through drilling, the cement slurry was filled into the goaf and its upper cracks, and the runoff channel between the Jinsha River and the mine was cut off. The curtain hole grouting adopted the cement-water glass double liquid slurry grouting process, and the general grouting hole adopted the cement slurry single liquid grouting process. In the results of the indoor setting time test, the final setting time of the cement slurry gradually decreased from more than 500 s to about 20 s with the increase of the water-cement ratio. According to the test results, the appropriate cement slurry ratio was determined. The average unconfined compressive strength of the four groups of cement cores in the goaf was 1.21 MPa, 1.21 MPa, 1.36 MPa and 1.29 MPa, respectively, and the wave velocity of the grouting section was 365 m / s-384 m / s. The compressive strength was greater than 1 MPa, and the shear wave velocity was greater than 350 m / s, indicating that the quality evaluation results after the implementation of the grouting and water plugging process met the requirements as a whole, which was feasible and practical.

Key words： steeply inclined thin coal seam water-filled goaf ground grouting water plugging curtain grouting

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	Articles by authors
	Li Youhong
	Wang Chong
	Long Jun

Cite this article:

Li Youhong,Wang Chong,Long Jun. Research and application of ground grouting water plugging technology in water filled goaf of steeply inclined thin coal seam in Southwest China[J]. CCI, 2024, 47(5): 54-58.

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http://www.mtyhg.com.cn/EN/10.19286/j.cnki.cci.2024.05.012 OR http://www.mtyhg.com.cn/EN/Y2024/V47/I5/54

[ 1 ] 刘世伟. 谈薄煤层采煤技术与标准及开采过程中出现的问题[ J ]. 中国石油和化工标准与质量，2021，41（ 5 ）：156 - 158. [ 2 ] 龚强. 苏村煤矿薄煤层开采液压支架的应用[ J ]. 能源技术与管理，2023，48（ 1 ）：68 - 70. [ 3 ] 王永明. 急倾斜薄煤层综采工艺关键技术研究及应用[ J ]. 石化技术，2019，26（ 8 ）：340 - 341. [ 4 ] 寇学超. 长大富水斜井分区注浆堵水技术研究——以松山隧道通风斜井工程为例[ J ]. 工程技术研究，2022，7（ 24 ）：40 - 44. [ 5 ] 周鹏飞. 山岭隧道高压富水段超前注浆堵水实施效果试验研究[ J ]. 广东土木与建筑，2021，28（ 10 ）：61 - 64，69. [ 6 ] 肖松丽，董亚宁，王忠强. 帷幕注浆堵水技术在罗河铁矿的应用[ J ]. 现代矿业，2021，37（ 7 ）：265 - 268，271. [ 7 ] 周永军，王星，巨萌，等. 隧道涌水治理全断面双浆液帷幕注浆堵水技术[ J ]. 云南水力发电，2021，37（ 4 ）：58 - 62. [ 8 ] Qiao M, Ren T, Roberts J, et al. New insight into proactive goaf inertisation for spontaneous combustion management and control[ J ]. Process Safety and Environmental Protection, 2022, 161: 739 - 757. [ 9 ] Zou J, Zhang R, Zhou F, et al. Hazardous Area Reconstruction and Law Analysis of Coal Spontaneous Combustion and Gas Coupling Disasters in Goaf Based on DEM-CFD. ACS Omega. 2023, 98( 2 ): 2 685 - 2 697. [ 10 ] 张慧瑾. 煤矿井下导水断层注浆堵水改造研究[ J ]. 当代化工研究，2021（ 6 ）：65 - 66. [ 11 ] Xu Zaicheng ，Xu Wei，Zhou Peng，et al. Research on Coal Mine Goaf Restoration Based on Stability of Overlying Rocks and Numerical Simulation Analysis: A Case Study of Jingmen Garden Expo Park[ J ]. Sustainability， 2023， 15（ 2 ）：1-26. [ 12 ] 张东营. 水淹采空区邻矿工作面顶板突水帷幕注浆堵水技术研究[ J ]. 煤炭工程，2020，52（ 4 ）：62 - 66. [ 13 ] 王宁，李正，田光彩，等. 物探方法在检测采空区注浆充填效果中的应用—以山东章丘某建设场地为例[ J ]. 山东国土资源，2022，38（ 12 ）：42 - 47.