沿空留巷巷道围岩变形破坏特征及影响因素研究
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摘要
为了研究沿空留巷巷道围岩变形破坏特征及影响因素,采用理论研究、数值模拟和现场实测相结合的方法,研究了沿空动压巷道围岩结构分类、沿空动压巷道围岩变形破坏特征以及围岩变形破坏影响因素。研究得出:巷道围岩层位的物理力学性质与护巷煤柱侧开挖空间的差异,把沿空动压巷道分为8个类型;围岩破坏主要集中在岩性较弱的巷道顶板以及护巷煤柱侧;影响巷道稳定性的主要因素有巷道开挖顺序与布置、构造应力、巷道支护、两次动压。研究对沿空动压巷道在采动影响下的围岩控制技术和破坏失稳机理提供了技术支持。
In order to study the deformation characteristics and influencing factors of surrounding rock roadway along the roadway,the combination of theoretical research,numerical simulation and field measurement was used to study the surrounding rock structure classification and the surrounding rock deformation of the dynamic hydrodynamic roadway along the gob. Destruction characteristics and factors affecting the deformation and failure of surrounding rock,the results showed the difference between the physical and mechanical properties of the surrounding rock layer of the roadway and the excavation space of the coal pillar side of the roadway,and divide the dynamic pressure roadway along the air into 8 types; the damage was mainly concentrated on the roof of the roadway with weak lithology and the coal pillar side of the roadway. The main factors affecting the stability of the roadway were the sequence and arrangement of roadway excavation,tectonic stress,roadway support and two dynamic pressures. The research provides technical support for the surrounding rock control technology and the mechanism of failure and instability under the influence of mining in the dynamic hydrodynamic roadway.
In order to study the deformation characteristics and influencing factors of surrounding rock roadway along the roadway,the combination of theoretical research,numerical simulation and field measurement was used to study the surrounding rock structure classification and the surrounding rock deformation of the dynamic hydrodynamic roadway along the gob. Destruction characteristics and factors affecting the deformation and failure of surrounding rock,the results showed the difference between the physical and mechanical properties of the surrounding rock layer of the roadway and the excavation space of the coal pillar side of the roadway,and divide the dynamic pressure roadway along the air into 8 types; the damage was mainly concentrated on the roof of the roadway with weak lithology and the coal pillar side of the roadway. The main factors affecting the stability of the roadway were the sequence and arrangement of roadway excavation,tectonic stress,roadway support and two dynamic pressures. The research provides technical support for the surrounding rock control technology and the mechanism of failure and instability under the influence of mining in the dynamic hydrodynamic roadway.
引文
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[13]胡永灿,杨睿,段会强.薄煤层条件下沿空留巷优化研究[J].煤炭技术,2016,35(1):62-65.Hu Yongcan,Yang Rui,Duan Huiqiang. Study on optimization ofroadway retaining in thin coal seam[J]. Coal Technology,2016,35(1):62-65.
[14]王琳.深部沿空留巷围岩稳定性控制技术研究[J].煤炭科技,2016(3):5-9.Wang Lin. Research on stability control technology of surroundingrock in deep roadway[J]. Coal Science&Technology Magazine,2016(3):5-9.
[15]杨晓杰,张民,王二雨.柠条塔煤矿大采高工作面切顶沿空留巷围岩变形机理研究[J].金属矿山,2018,47(1):172-177.Yang Xiaojie,Zhang Min,Wang Eryu. Study on deformation mech-anism of surrounding rock in retaining road along the top of thecutting face in the large mining height face of Ningjiata Coal Mine[J]. Metal Mine,2018,47(1):172-177.
[16]许向前,赵健,郑志阳.沿空留巷围岩变形机理及控制技术[J].矿业工程研究,2017,32(2):20-24.Xu Xiangqian,Zhao Jian,Zheng Zhiyang. Deformation mechanismand control technology of surrounding rock in retaining roadway a-long the goaf[J]. Mineral Engineering Research,2017,32(2):20-24.
[17]周洁,武立飞,李思超,等.麻家梁矿沿空留巷合理护巷煤柱宽度模拟研究[J].能源技术与管理,2015,40(4):38-39.Zhou Jie,Wu Lifei,Li Sichao,et al. Simulation study on coal pillarwidth of reasonable retaining roadway along the roadway in Maji-aliang Mine[J]. Energy Technology and Management,2015,40(4):38-39.
[18]张晋通,张东峰.沿空留巷坚硬顶板关键块稳定性研究[J].煤矿安全,2015,46(11):50-53.Zhang Jintong,Zhang Dongfeng. Study on stability of key blocks ofhard roof in roadway retaining[J]. Safety in Coal Mines,2015,46(11):50-53.
[19]柏建彪,陈勇.沿空留巷围岩稳定原理与控制技术研究[J].煤矿支护,2016(4):2-10.Bai Jianbiao,Chen Yong. Study on stability principle and controltechnology of surrounding rock in retaining roadway along the goaf[J]. Coal Mine Support,2016(4):2-10.
[20]赵健,张鹏.沿空留巷围岩给定变形及巷旁支护时机研究[J].煤炭工程,2017,49(2):68-71.Zhao Jian,Zhang Peng. Study on the given deformation of sur-rounding rock and the support time of roadside support along theroadway[J]. Coal Engineering,2017,49(2):68-71.
[2]董春亮,卢小雨.沿空留巷巷道围岩变形量的影响因素分析[J].煤炭技术,2015,34(1):39-41.Dong Chunliang,Lu Xiaoyu. Analysis of factors affecting the de-formation of surrounding rock in roadway along the roadway[J].Coal Technology,2015,34(1):39-41.
[3]李强,刘兆平,高林海.沿空留巷围岩运动规律及充填体变形特征模拟研究[J].山东煤炭科技,2015(2):21-22.Li Qiang,Liu Zhaoping,Gao Linhai. Simulation study on surround-ing rock movement law and deformation characteristics of backfillin retaining roadway along the goaf[J]. Shandong Coal Science andTechnology,2015(2):21-22.
[4]钟会军,马永刚.沿空留巷围岩变形特征及加固支护技术研究[J].能源技术与管理,2017(6):67-69.Zhong Huijun,Ma Yonggang. Study on deformation characteristicsand reinforcement technology of surrounding rock in retaining road-way along the goaf[J]. Energy Technology and Management,2017(6):67-69.
[5]李爱军.深井沿空留巷关键技术研究与应用[J].煤炭科学技术,2016,44(11):12-17.Li Aijun. Research and application of key technologies for retainingroadway along deep mine[J]. Coal Science and Technology,2016,44(11):12-17.
[6]徐军见,王金刚,尚言明.小煤柱沿空留巷围岩变形特征数值模拟分析[J].内蒙古煤炭经济,2013(3):48-49.Xu Junjian,Wang Jingang,Shang Yanming. Numerical simulationanalysis of deformation characteristics of surrounding rocks in smallcoal pillars[J]. Inner Mongolia Coal Economy,2013(3):48-49.
[7]荆保平,杨建雄,赵飞,等.顶底板双软条件下沿空留巷围岩控制技术研究[J].能源技术与管理,2015,40(4):40-42.Jing Baoping,Yang Jianxiong,Zhao Fei,et al. Research on sur-rounding rock control technology of retaining roadway along goafunder double soft conditions[J]. Energy Technology and Manage-ment,2015,40(4):40-42.
[8]高永格,梁建.沿空留巷二次采动影响煤巷破坏规律研究[J].煤炭技术,2017(1):6-8.Gao Yongge,Liang Jian. Study on the damage law of coal roadwayaffected by secondary mining along the roadway[J]. Coal Technol-ogy,2017(1):6-8.
[9]李传明.沿空留巷工作面上顺槽围岩活动规律研究[J].采矿技术,2010,10(1):44-45.Li Chuanming. Research on the law of surrounding rock activity inthe working face along the roadway[J]. Mining Technology,2010,10(1):44-45.
[10]王磊,李传明,李家卓. Y型通风沿空留巷巷道围岩活动规律研究[J].安全与环境学报,2015,15(6):50-57.Wang Lei,Li Chuanming,Li Jiazhuo. Study on the law of surround-ing rock activity of y-type ventilation roadway[J]. Journal of Safetyand Environment,2015,15(6):50-57.
[11]冯建斌.沿空留巷巷旁充填体合理宽度研究[J].山西煤炭,2015(1):55-57.Feng Jianbin. Study on reasonable width of filling body along road-way along roadway[J]. Shanxi Coal,2015(1):55-57.
[12]李兴伟,陈刚.沿空留巷支护效果数值模拟研究[J].煤炭科技,2007(3):5-6.Li Xingwei,Chen Gang. Numerical simulation study on supportingeffect of roadway along goaf[J]. Coal Science&Technology Maga-zine,2007(3):5-6.
[13]胡永灿,杨睿,段会强.薄煤层条件下沿空留巷优化研究[J].煤炭技术,2016,35(1):62-65.Hu Yongcan,Yang Rui,Duan Huiqiang. Study on optimization ofroadway retaining in thin coal seam[J]. Coal Technology,2016,35(1):62-65.
[14]王琳.深部沿空留巷围岩稳定性控制技术研究[J].煤炭科技,2016(3):5-9.Wang Lin. Research on stability control technology of surroundingrock in deep roadway[J]. Coal Science&Technology Magazine,2016(3):5-9.
[15]杨晓杰,张民,王二雨.柠条塔煤矿大采高工作面切顶沿空留巷围岩变形机理研究[J].金属矿山,2018,47(1):172-177.Yang Xiaojie,Zhang Min,Wang Eryu. Study on deformation mech-anism of surrounding rock in retaining road along the top of thecutting face in the large mining height face of Ningjiata Coal Mine[J]. Metal Mine,2018,47(1):172-177.
[16]许向前,赵健,郑志阳.沿空留巷围岩变形机理及控制技术[J].矿业工程研究,2017,32(2):20-24.Xu Xiangqian,Zhao Jian,Zheng Zhiyang. Deformation mechanismand control technology of surrounding rock in retaining roadway a-long the goaf[J]. Mineral Engineering Research,2017,32(2):20-24.
[17]周洁,武立飞,李思超,等.麻家梁矿沿空留巷合理护巷煤柱宽度模拟研究[J].能源技术与管理,2015,40(4):38-39.Zhou Jie,Wu Lifei,Li Sichao,et al. Simulation study on coal pillarwidth of reasonable retaining roadway along the roadway in Maji-aliang Mine[J]. Energy Technology and Management,2015,40(4):38-39.
[18]张晋通,张东峰.沿空留巷坚硬顶板关键块稳定性研究[J].煤矿安全,2015,46(11):50-53.Zhang Jintong,Zhang Dongfeng. Study on stability of key blocks ofhard roof in roadway retaining[J]. Safety in Coal Mines,2015,46(11):50-53.
[19]柏建彪,陈勇.沿空留巷围岩稳定原理与控制技术研究[J].煤矿支护,2016(4):2-10.Bai Jianbiao,Chen Yong. Study on stability principle and controltechnology of surrounding rock in retaining roadway along the goaf[J]. Coal Mine Support,2016(4):2-10.
[20]赵健,张鹏.沿空留巷围岩给定变形及巷旁支护时机研究[J].煤炭工程,2017,49(2):68-71.Zhao Jian,Zhang Peng. Study on the given deformation of sur-rounding rock and the support time of roadside support along theroadway[J]. Coal Engineering,2017,49(2):68-71.
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