| Citation: |
SUN Qiang，ZHAO Rui，ZHOU Nan，et al. Performance of coal based solid waste foam filling material and control of surrounding rock of abandoned roadways[J]. Coal Science and Technology，2025，53（6）：327−342. DOI: 10.12438/cst.2025-0240
|
A working face passing through an abandoned roadway is a common engineering problem in the underground production process of coal mines. When the geological conditions of abandoned roadways are complex and dense, they can easily lead to instability of the surrounding rock, empty top operation of supports, and bottom leakage of supports, which affect the safe and efficient production of the working face. Taking the 5316 fully mechanized top coal caving working face of the Baodian Coal Mine as the research background, the coal based solid waste foam filling material, performance and superior ratio, surrounding rock deformation law, and control effect of the working face through the abandoned roadway group were studied by means of theoretical analysis, laboratory testing, physical simulation and field measurements. The test results show that when the dilution ratio of foaming agent is 20 times, the water cement ratio is 0.5, the content of foam stabilizer is 1%, the content of foaming agent is 1.0%, and the content of gypsum is 7%, the 28 day strength of cement foam filling material sample can reach 1.72 MPa; When the particle size of gangue is 0−0.3 mm and the content is 30%, the strength of gangue foam filling material sample can reach 1.53 MPa after 28 days; When the content of fly ash is 30%, the sample strength of fly ash foam filling material can reach 1.13 MPa after 28 days. The technical method of surrounding rock control of abandoned roadway group is proposed, which is mainly filled with coal based solid waste foam material, reinforced anchor cable and U-shaped steel beam to strengthen support, and the principle of abandoned roadway filling technology with coal based solid waste foam material and the design of main parameters for strengthening support are given. Through physical similar simulation tests, the variation range of the peak stress of surrounding rock of abandoned roadway group in different layers is 16.9−26.5 MPa, the variation range of the stress concentration coefficient is 1.61−2.53, the maximum subsidence value of the roof of abandoned roadway in the same layer is between 300−400 mm, and the maximum subsidence value of the roof of the underlying abandoned roadway is between 200−300 mm, and the intersection of abandoned roadway is prone to stress concentration, with large deformation. During the mining period of the working face, on-site monitoring data such as surface displacement of the surrounding rock of the abandoned roadway group, stress of the coal rock mass (filling body), roof separation and anchor rod (cable) load, and support working resistance show that the overall deformation control effect of the abandoned roadway surrounding rock is good, achieving safe and efficient production of the working face.
| [1] |
刘畅,杨增强,弓培林,等. 工作面过空巷基本顶超前破断压架机理及控制技术研究[J]. 煤炭学报,2017,42(8):1932−1940.
LIU Chang,YANG Zengqiang,GONG Peilin,et al. Mechanism and control technology of supports crushing induced by main roof’s breaking ahead of workface when crossing abandoned roadway[J]. Journal of China Coal Society,2017,42(8):1932−1940.
|
| [2] |
刘跃东,王东攀. 煤矿巷道柱式支护形式及新型泵充支柱研究应用[J]. 岩石力学与工程学报,2024,43(10):2466−2484.
LIU Yuedong,WANG Dongpan. Research and application of pillar support form and new pump-filled pillar in coal mine roadways[J]. Chinese Journal of Rock Mechanics and Engineering,2024,43(10):2466−2484.
|
| [3] |
解嘉豪,韩刚,孙凯,等. 邻空巷坚硬顶板预裂爆破防冲机理及效果检验[J]. 煤炭学报,2023,48(5):2078−2091.
XIE Jiahao,HAN Gang,SUN Kai,et al. Rockburst prevention mechanism and effect test of blast presplitting of hard roof in gob-side roadway[J]. Journal of China Coal Society,2023,48(5):2078−2091.
|
| [4] |
刘畅,弓培林,王开,等. 复采工作面过空巷顶板稳定性[J]. 煤炭学报,2015,40(2):314−322.
LIU Chang,GONG Peilin,WANG Kai,et al. Roof stability for repeated mining workface passing through abandoned parallel gateway[J]. Journal of China Coal Society,2015,40(2):314−322.
|
| [5] |
何向宁,陈勇,秦征远. 综放工作面过空巷技术研究及应用[J]. 煤炭科学技术,2017,45(6):124−130.
HE Xiangning,CHEN Yong,QIN Zhengyuan. Application and study on technology of fully-mechanized top coal caving mining face passing through mine abandoned roadway[J]. Coal Science and Technology,2017,45(6):124−130.
|
| [6] |
王俊杰,曹建波,吴怀国,等. 泵送充填式支柱在大采高工作面过空巷支护应用研究[J]. 煤炭科学技术,2016,44(S2):76−79.
WANG Junjie,CAO Jianbo,WU Huaiguo,et al. Study on application of pumping filling pillar in supporting gob-crossing roadway in large mining height face[J]. Coal Science and Technology,2016,44(S2):76−79.
|
| [7] |
谢生荣,李世俊,魏臻,等. 综放工作面过空巷时支架−围岩稳定性控制[J]. 煤炭学报,2015,40(3):502−508.
XIE Shengrong,LI Shijun,WEI Zhen,et al. Stability control of support-surrounding rock system during fully mechanized caving face crossing abandoned roadway period[J]. Journal of China Coal Society,2015,40(3):502−508.
|
| [8] |
罗文,余伊河,王文. 神东矿区综采工作面过同层位空巷强矿压显现机理及控制方法[J]. 煤炭学报,2024,49(8):3335−3352.
LUO Wen,YU Yihe,WANG Wen. Mechanism and control of strong mine pressure in fully mechanized mining face of Shendong mining area when crossing abandoned roadways in the same coal seam[J]. Journal of China Coal Society,2024,49(8):3335−3352.
|
| [9] |
任晓鹏,辛亚军,杨俊鹏. 大采高过联巷空顶−煤柱−支架耦合承载与控制分析[J]. 采矿与安全工程学报,2023,40(2):251−262.
REN Xiaopeng,XIN Yajun,YANG Junpeng. Roof-pillar-support collaborative load and control analysis in large-mining-height passing gateways[J]. Journal of Mining & Safety Engineering,2023,40(2):251−262.
|
| [10] |
吕建光,张慧友,顾伟,等. 复采巷道过空巷交叉段围岩控制技术[J]. 煤矿安全,2024,55(1):176−184.
LYU Jianguang,ZHANG Huiyou,GU Wei,et al. Surrounding rock control technology of crossing abandoned roadway intersection of compound mining area[J]. Safety in Coal Mines,2024,55(1):176−184.
|
| [11] |
王学坤. 工作面过空巷超前支承应力分布与煤柱稳定性研究[J]. 煤矿安全,2022,53(2):195−201.
WANG Xuekun. Study on distribution of advance supporting stress and stability of coal pillar during the working face passing through abandon roadway[J]. Safety in Coal Mines,2022,53(2):195−201.
|
| [12] |
张栋,郭永红,柏建彪,等. 砌体梁结构下空巷围岩动态稳定机理及控制[J/OL]. 煤炭学报:1−18 [2025−01−15]. https://doi.org/10.13225/j.cnki.jccs.2024.1199.
ZHANG Dong,GUO Yonghong,BAI Jianbiao,et al. Dynamic stability mechanism and control of the abandoned roadway surrounding rock under voussoir beam structure[J/OL]. Journal of China Coal Society,1−18 [2025−01−15]. https://doi.org/10.13225/j.cnki.jccs.2024.1199.
|
| [13] |
卢恒,张传宝,仵振华,等. 综放工作面过空巷矿压显现规律及控制技术研究[J]. 采矿与岩层控制工程学报,2022,4(6):47−59.
LU Heng,ZHANG Chuanbao,WU Zhenhua,et al. Study on ground pressure and control technology of a fully mechanized top coal caving longwall face passing a pre-driven roadway[J]. Journal of Mining and Strata Control Engineering,2022,4(6):47−59.
|
| [14] |
尹超宇,冯光明,高鹏,等. 工作面过空巷围岩失稳机理研究[J]. 采矿与安全工程学报,2018,35(3):457−464.
YIN Chaoyu,FENG Guangming,GAO Peng,et al. Research on instability mechanism of surrounding rock in stage of working face passing abandoned roadway[J]. Journal of Mining & Safety Engineering,2018,35(3):457−464.
|
| [15] |
刘畅,张俊文,杨增强,等. 工作面过空巷基本顶超前破断机制及控制技术[J]. 岩土力学,2018,39(4):1411−1421.
LIU Chang,ZHANG Junwen,YANG Zengqiang,et al. Mechanism of advance fracture of main roof and its control technology when workface crossing abandoned roadway[J]. Rock and Soil Mechanics,2018,39(4):1411−1421.
|
| [16] |
赵文光,解振华. 基于3DEC的过空巷群采动来压突显特征模拟研究[J]. 煤炭科学技术,2022,50(S1):54−58.
ZHAO Wenguang,XIE Zhenhua. Simulation study on outburst characteristics of mining pressure in goaf roadway group based on 3DEC[J]. Coal Science and Technology,2022,50(S1):54−58.
|
| [17] |
李振华,任梓源,杜锋,等. 大巷煤柱工作面过空巷矿压规律及控制技术[J]. 煤田地质与勘探,2024,52(10):141−152. doi: 10.12363/issn.1001-1986.24.05.0316
LI Zhenhua,REN Ziyuan,DU Feng,et al. Evolutionary pattern and control technology of mine pressure when mining face for coal pillars in main roadways passing through abandoned roadways[J]. Coal Geology & Exploration,2024,52(10):141−152. doi: 10.12363/issn.1001-1986.24.05.0316
|
| [18] |
周海丰,黄庆享. 大采高工作面过空巷群顶板破断及矿压规律研究[J]. 煤炭科学技术,2020,48(2):70−79.
ZHOU Haifeng,HUANG Qingxiang. Study on the law of roof breakage and mine pressure passing large cross-section gob group in the fully-mechanized face with high mining height[J]. Coal Science and Technology,2020,48(2):70−79.
|
| [19] |
刘炳权,李正甲,代双成,等. 回收大巷煤柱工作面过空巷围岩破坏机理和控制技术[J]. 煤炭科学技术,2022,50(4):67−75.
LIU Bingquan,LI Zhengjia,DAI Shuangcheng,et al. Failure mechanism and control technology of surrounding rock of coal pillar crossing abandoned roadway[J]. Coal Science and Technology,2022,50(4):67−75.
|
| [20] |
张金龙,胡成成,古全忠. 无机材料充填技术在工作面过空巷中的应用[J]. 煤炭科学技术,2020,48(S1):51−53.
ZHANG Jinlong,HU Chengcheng,GU Quanzhong. Application of inorganic material filling technology in goaf roadway of working face[J]. Coal Science and Technology,2020,48(S1):51−53.
|
| [21] |
徐青云,宁掌玄,朱润生,等. 综放工作面充填过空巷顶板失稳机理及控顶研究[J]. 采矿与安全工程学报,2019,36(3):505−512.
XU Qingyun,NING Zhangxuan,ZHU Runsheng,et al. Study on instability mechanism and top control of overfilled roof in fully mechanized caving face[J]. Journal of Mining & Safety Engineering,2019,36(3):505−512.
|
| [22] |
SHI S,MIAO Y C,WU H K,et al. The stress evolution of adjacent working faces passing through an abandoned roadway and the damage depth of the floor[J]. Energies,2022,15(16):5824. doi: 10.3390/en15165824
|
| [23] |
邵春瑞,李俊清,赵宝友. 综放工作面过密集空巷群高水充填技术研究及应用[J]. 煤炭工程,2022,54(6):57−63.
SHAO Chunrui,LI Junqing,ZHAO Baoyou. High water filling technology for fully mechanized top-coal caving face crossing close-set abandoned roadway groups[J]. Coal Engineering,2022,54(6):57−63.
|
| [24] |
张国恩,解振华,史洪恺. 过空巷群支护技术与矿压显现规律特征分析[J]. 煤矿安全,2020,51(11):248−252.
ZHANG Guoen,XIE Zhenhua,SHI Hongkai. Support technology of passing through empty roadway group and mine pressure characteristics analysis[J]. Safety in Coal Mines,2020,51(11):248−252.
|
| [25] |
牛海萍,潘瑞凯,于伟东,等. 复采工作面空巷充填力学响应规律与控制效果研究[J]. 金属矿山,2024(12):165−172.
NIU Haiping,PAN Ruikai,YU Weidong,et al. Study on mechanical response rule and control effect of abandoned roadway filling in remining face[J]. Metal Mine,2024(12):165−172.
|
| [26] |
LI Y,LEI M X,WANG H S,et al. Abutment pressure distribution for longwall face mining through abandoned roadways[J]. International Journal of Mining Science and Technology,2019,29(1):59−64. doi: 10.1016/j.ijmst.2018.11.018
|
| [27] |
许延春,杨扬. 大埋深煤层底板破坏深度统计公式及适用性分析[J]. 煤炭科学技术,2013,41(9):129−132.
XU Yanchun,YANG Yang. Applicability analysis on statistical formula for failure depth of coal seam floor in deep mine[J]. Coal Science and Technology,2013,41(9):129−132.
|
| [28] |
李昂,杨钧皓,王峰,等. 深部高承压水多层结构底板破坏机理及应用研究[J/OL]. 煤炭科学技术,1−17 [2025−01−15]. http://kns.cnki.net/kcms/detail/11.2402.td.20240920.1603.003.html.
LI Ang,YANG Junhao,WANG Feng,et al. Study on failure mechanism and application of deep high confined water multi-layer structure floors[J/OL]. Coal Science and Technology,1−17 [2025−01−15]. http://kns.cnki.net/kcms/detail/11.2402.td.20240920.1603.003.html.
|
| [29] |
中华人民共和国住房和城乡建设部. 建筑砂浆基本性能试验方法标准:JGJ/T 70—2009[S]. 北京:中国建筑工业出版社,2009.
|
| [30] |
孙强. 充填开采再造隔水关键层机理及方法研究[D]. 徐州:中国矿业大学,2019.
SUN Qiang. Study on mechanism and method of reconstructing key water-resisting layer by filling mining[D]. Xuzhou:China University of Mining and Technology,2019.
|
| [31] |
李伟涛,郭志飚,何满潮,等. 深部高应力软岩巷道失稳机理及补偿支护技术研究[J/OL]. 煤炭科学技术:1−18 [2025−01−15]. http://kns.cnki.net/kcms/detail/11.2402.td.20240806.0947.002.html.
LI Weitao,GUO Zhibiao,HE Manchao,et al. Study on failure mechanisms and compensation support technology of deep high stress soft rock roadways[J/OL]. Coal Science and Technology,1−18 [2025−01−15]. http://kns.cnki.net/kcms/detail/11.2402.td.20240806.0947.002.html.
|
Supported by: Beijing Renhe Information Technology Co., Ltd. 
DownLoad: