沙梁煤矿连采连充矸石固体充填—注浆工艺优化设计

doi:10.11799/ce202604002

摘要/Abstract

摘要：

连采连充工艺可实现采-充平行作业，工作面设计灵活，对回收不规则块段煤炭资源具有显著优势。沙梁煤矿为了回收不规则煤炭资源以及处理矸石固废，采用连采连充矸石固体充填—注浆工艺。对比了全采全充、局采局充两套工艺，综合比较选择局采局充工艺。工作面长度控制在100m以内，支巷宽度按6m设计，其中采-充宽度为4.5m，留设1.5m煤柱。在支巷顶板挂设注浆管路，矸石固体充填完成后进行注浆，提高矸石充填体整体强度与稳定性。设计了充填系统与矸石固体充填-注浆工艺流程，优选了采煤与充填设备。开展了注浆材料流动性与强度测试，确定了注浆材料成分配比与合理浓度；结合注浆后矸石胶结体压缩特性，选用连续级配矸石进行充填。

关键词:

连采连充, 矸石固体充填, 工艺设计, 注浆材料配比, 矸石级配

Abstract:

The continuous mining and continuous filling process allows for parallel mining and filling operations, with flexible working face design, and has significant advantages in recovering irregular block coal resources. In order to recover irregular coal resources and dispose of gangue solid waste, Shaliang Coal Mine adopted the continuous mining and continuous gangue solid filling-grouting process. After comparing the two processes of full mining and full filling, and, partial mining and partial filling, the partial mining and partial filling process was selected. The length of the working face was controlled within 100 meters, and the width of the branch roadway was designed to be 6 meters, with a mining-filling width of 4.5 meters and a 1.5-meter coal pillar reserved. Grouting pipelines were hung on the roof of the branch roadway, and grouting was carried out after the solid gangue filling was completed to improve the overall strength and stability of the gangue backfill. The filling system and the process flow of solid gangue filling-grouting were designed, and the coal mining and filling equipment were optimized. Tests on the fluidity and strength of grouting materials were carried out, and the composition ratio and reasonable concentration of grouting materials were determined. Considering the compression characteristics of the gangue cementitious body after grouting, continuously graded gangue was selected for filling. This process achieved safe and efficient recovery of irregular coal blocks and comprehensive utilization of gangue.

中图分类号:

TD325

刘　辉, 罗南洪, 郭建平, 杜超杰, 宋宇晨, 赵文华.

沙梁煤矿连采连充矸石固体充填—注浆工艺优化设计 [J]. 煤炭工程, 2026, 58(4): 10-18.

参考文献

[1] 伍永平, 贠东风, 解盘石, 等. 大倾角煤层长壁综采: 进展、实践、科学问题[J]. 煤炭学报, 2020, 45(1): 24-34.
WU Yongping, YUN Dongfeng, XIE Panshi, et al. Progress, practice and scientific issues in steeply dipping coal seams fully-mechanized mining[J]. Journal of China Coal Society, 2020, 45(1): 24-34.
[2] 王世博, 葛世荣, 王世佳, 等. 长壁综采工作面无人自主开采发展路径与挑战[J].煤炭科学技术, 2022, 50(2): 231-243.
WANG Shibo, GE Shirong, WANG Shijia, et al. Development and chanllege of unmanned autonomous longwall fully-mechanized coal mining face[J]. Coal Science and Technology, 2022, 50(2): 231-243
[3] 冯国瑞, 白锦文, 史旭东, 等. 遗留煤柱群链式失稳的关键柱理论及其应用展望[J]. 煤炭学报, 2021, 46(1): 164-179.
FENG Guorui, BAI Jinwen, SHI Xudong, et al. Key pillar theory in the chain failure of residual coal pillars and its application prospect [J]. Journal of China Coal Society, 2021, 46(1): 164-179.
[4] 孙庆先. 基于长壁式和短壁式相结合的条带采煤法研究[J]. 煤炭工程, 2016, 48(8): 8-11.
SUN Qingxian. Research on strip mining based on long-wall and short-wall mining[J].Coal Engineering, 2016, 48(8): 8-11.
[5] 梁贺. 不规则块段综合机械化开采及覆岩导水裂隙演化规律研究[D]. 中国矿业大学, 2021.
[6] 郭文兵，胡玉杭，胡超群，等. 我国“三下”采煤技术体系与工程实践[J]. 煤炭科学技术, 2025, 53(1): 19-38.
GUO Wenbing, HU Yuhang, HU Chaoqun, et al. System and engineering practice of coal mining technology under buildings, water bodies and railways in China[J]. Coal Science and Technology, 2025, 53(1): 19-38.
[7] 冯国瑞, 白锦文, 马俊彪, 等. 残采区群柱遗煤资源绿色开采与地下空间开发技术挑战[J]. 绿色矿山, 2023, 1(1): 91-100.
FENG Guorui, BAI Jinwen, MA Junbiao, et al. Technical challenge of coal pillars resource green mining and underground space developing in the residual mining area[J]. Journal of Green Mine, 2023, 1(1): 91-100.
[8] 苗彦平, 杜涛, 王碧清, 等. 厚煤层不规则块段连续采煤机短壁开采技术[J]. 煤矿开采, 2015, 20 (05): 23-26.
MIAO Yanping, DU Tao, WANG Biqing, et al. Short-wall Mining Technology of Anomalous Section in Thick Coal-seam with Continuous Miner[J]. Coal Mining Technology, 2015, 20 (05): 23-26.
[9] 郝万东. 连续采煤机短壁开采技术在东坪煤矿的应用[J]. 煤炭工程, 2020, 52 (02): 5-8.
HAO Wandong. Application of short wall mining technology with continuous miner in Dongping Coal Mine[J]. Coal Engineering, 2020, 52 (02): 5-8.
[10] 张彦禄, 王步康, 张小峰, 等. 我国连续采煤机短壁机械化开采技术发展40a与展望[J]. 煤炭学报, 2021, 46(1): 86-99.
ZHANG Yanlu, WANG Bukang, ZHANG Xiaofeng, et al. Forty years’development and future prospect on mecha- nized short-wall mining technology with continuous miner in China[J]. Journal of China Coal Society, 2021, 46(1): 86-99.
[11] 马进功. 连续采煤机开采优质稀缺残煤技术研究与应用[J]. 煤炭科学技术, 2022, 50(11): 67-75.
MA Jingong. Research and application of mining technology with continuous miner in high-quality scarce residual coal[J]. Coal Science and Technology, 2022, 50(11): 67-75.
[12] 吴建华, 李玉增, 王壮. 连采连充膏体充填工艺系统设计与应用[J]. 煤炭工程, 2024, 56(1): 8-13.
WU Jianhua, LI Yuzeng, WANG Zhuang. Design and application of continuous mining and paste filling process system [J]. Coal Engineering, 2024, 56(1): 8-13.
[13] 林海, 杨仁树, 李永亮, 等. 短壁连采连充式胶结充填采煤技术应用研究[J]. 工程科学学报, 2022, 44(6): 981-992.
LIN Hai, YANG Renshu, LI Yongliang, et al. Application of short-wall continuous mining and continuous backfilling cemented-fill mining technology[J]. Chinese Journal of Engineering, 2022, 44(6): 981-992.
[14] 夏康祺. 充填开采弱化矿压显现规律及工程实践[D]. 中国矿业大学, 2020.
[15] 林海. 连采连充式采煤充填体与煤柱协同控顶机理及应用研究[D]. 北京科技大学, 2024.
[16] 李永亮, 路彬, 杨仁树, 等. 煤矿连采连充式胶结充填采煤技术与典型工程案例[J].煤炭学报, 2022, 47(3): 1055-1071.
LI Yongliang, LU Bin, YANG Renshu, et al. Cemented backfilling mining technology with continuous mining and continuous backfilling method for underground coal mine and typical engineering cases[J]. Journal of China Coal Society, 2022, 47(3): 1055-1071.
[17] 徐斌. 连采连充式胶结充填采煤覆岩变形特征及控制机理[D]. 中国矿业大学(北京), 2023.
[18] 刘鹏亮. 煤基固废充填材料及充填工艺发展现状与展望[J].矿产保护与利用, 2024, 44(6): 15-24.
LIU Pengliang. Development status and prospects of coal based solid waste filling materials and filling mining technology[J]. Conservation and Utilization of Mineral Resources, 2024, 44(6):15-24.
[19] 王树帅, 李永亮, 李清, 等. 基于泰波理论的矸石级配系数对充填材料性能的影响[J]. 采矿与安全工程学报, 2022, 39(4): 683-692.
WANG Shushuai, LI Yongliang, LI Qing, et al. Influence of gangue gradation coefficient on the performance of filling material based on Talbol theory[J]. Journal of Mining & Safety Engineering, 2022, 39(4): 683-692.
[20] 兰立信, 李猛, 张强, 等. 典型矿区固体混合充填材料力学特性试验研究[J]. 采矿与安全工程学报, 2019, 36(3): 593-600, 608.
LAN Lixin, LI Meng, ZHANG Qiang, et al. Experimental study on mechanical properties of solid mixed filling materials in typical mining areas[J]. Journal of Mining & Safety Engineering, 2019, 36(3): 593-600, 608.
[21] 李利峰, 刘鹏亮, 赵文华. 基于矸石固体最优粒径级配的充填开采等价采高研究[J]. 中国矿业, 2023, 32(3): 103-107.
LI Lifeng, LIU Pengliang, ZHAO Wenhua. Study on equivalent mining height of filling mining based on the optimal particle size gradation of gangue solid[J]. China Mining Magazine, 2023, 3232(3):103-107.
[22] 路彬. 连采连充式胶结充填采煤覆岩移动规律及控制对策研究[D]. 中国矿业大学(北京), 2022.
[23] 王树帅, 徐斌, 李杨, 等. 基于RSM-BBD法胶结充填材料配比优化及工程应用[J]. 煤田地质与勘探, 2023, 51(3): 73-84.
WANG Shushuai, XU Bin, LI Yang, et al. Optimization of cemented filling material ratio based on RSM-BBD method and engineering application[J]. Coal Geology & Exploration, 2023, 51(3): 73-84.