黄金科学技术 ›› 2018, Vol. 26 ›› Issue (4): 511-519.doi: 10.11872/j.issn.1005-2518.2018.04.511
Zhongyuan GU1,2(),Keping ZHOU1
摘要:
空区结构力学特性随时间发生劣化是导致地表塌陷和空区坍塌的重要因素之一。以古马岭金矿浅埋空区群为研究对象,结合矿岩的压缩蠕变试验获取了围岩蠕变模型,利用数值模拟方法研究了该空区群结构时变力学特性。结果显示:矿岩的蠕变力学特性可用Cvisc模型加以描述;空区群形成后,地表岩体和围岩内部的应力和位移均随时间推移而发生变化,表现出显著的时变力学特性;空区群顶板下沉位移随时间加速增长,且中部采空区顶板位移最大,第5年时已达0.24 m,表明采空区顶板会随着时间发展而逐渐坍塌;矿柱两侧均出现随时间增大的横向变形,表面围岩逐渐片落,导致矿柱不断变窄,可能引起空区群发生大规模破坏;地表围岩形成以空区群中部为中心的塌陷区域,且塌陷深度和范围均随时间加速增长,在第5年时达到0.21 m,需要采取措施进行空区治理。
中图分类号:
1 | 马海涛.“11.6”特别重大坍塌事故矿区采场稳定性三维数值模拟分析[J].中国安全生产科学技术,2007,3(6):68-72. |
Ma Haitao .3D-Numerical simulation of stope stability in"11.6" accident of gypsum mine collapse[J].Journal of Safety Science and Technology,2007,3(6):68-72. | |
2 | Wang J A , Shang X C , Ma H T .Investigation of catastrophic ground collapse in Xingtai gypsum mines in China[J].International Journal of Rock Mechanics and Mining Sciences,2008,45(8):1480-1499. |
3 | Ma H T , Wang J A , Wang Y H .Study on mechanics and domino effect of large-scale goaf cave-in[J].Safety Science,2012,50(4):689-694. |
4 | 武光明,郑怀昌,肖超,等.地下采空区利用及其稳定性分析[J].化工矿物与加工,2015(7):32-36. |
Wu Guangming , Zheng Huaichang , Xiao Chao ,et al.Analysis of utilization and stability of underground mined-out area[J].Industrial Minerals & Processing,2015(7):32-36. | |
5 | 赵奎.岩金矿山采空区及残留矿柱回采稳定性研究[J].岩石力学与工程学报,2003,22(8):1404. |
Zhao Kui .Stability study of mined-out areas and recovery of residual pillars in rocky gold mine[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(8):1404. | |
6 | 刘艳红,罗周全.采空区失稳的安全流变—突变理论分析[J].工业安全与环保,2009,35(9):5-7. |
Liu Yanhong , Luo Zhouquan .Analysis of cavity instability based on safety rheology-mutation[J].Industrial Safety and Environmental Protection,2009,35(9):5-7. | |
7 | 何峰,王来贵,于永江.采空区悬顶岩梁模型及其流变分析[J].矿山压力与顶板管理,2005,22(4):84-85,88. |
He Feng , Wang Laigui , Yu Yongjiang .Rock beam model of hang arch in operation goaf and rheologic analysis[J].Ground Pressure and Strata Control,2005,22(4):84-85,88. | |
8 | 孙琦,张向东,张淑坤,等.多向荷载作用下采空区顶板—矿柱流变力学模型[J].防灾减灾工程学报,2015,35(5):679-684. |
Sun Qi , Zhang Xiangdong , Zhang Shukun ,et al.Rheological mechanics model of roof-pillars in mine goaf under multidirectional loads[J].Journal of Disaster Prevention and Mitigation Engineering,2015,35(5):679-684. | |
9 | 张耀平,曹平,袁海平,等.复杂采空区稳定性数值模拟分析[J].采矿与安全工程学报,2010,27(2):233-238. |
Zhang Yaoping , Cao Ping , Yuan Haiping ,et al.Numerical simulation on stability of complicated goal[J].Journal of Mining ang Safety Engineering,2010,27(2):233-238. | |
10 | 李铁,刘诗杰,马海涛,等.采空区顶板流变破断发展及灾变时间[J].中国有色金属学报,2016,26(3):666-672. |
Li Tie , Liu Shijie , Ma Haitao ,et al.Development and catastrophe time of rheological collapse in goaf roof[J].The Chinese Journal of Nonferrous Metals,2016,26(3):666-672. | |
11 | 王金安,李大钟,马海涛.采空区矿柱—顶板体系流变力学模型研究[J].岩石力学与工程学报,2010,29(3):577-582. |
Wang Jin’an , Li Dazhong , Ma Haitao .Study of rheological mechanical model of pillar-roof system in mined-out area[J].Chinese Journal of Rock Mechanics and Engineering,2010,29(3):577-582. | |
12 | 孙琦,魏晓刚,卫星,等.采空区矿柱流变特性对露天矿边坡稳定性的影响研究[J].中国安全科学学报,2014,24(8):85-91. |
Sun Qi , Wei Xiaogang , Wei Xing ,et al.Study on effects of pillars rheological properties on open-pit slope stability[J].China Safety Science Journal,2014,24(8):85-91. | |
13 | 梁冰,汪北方,姜利国,等.浅埋采空区垮落岩体碎胀特性研究[J].中国矿业大学学报,2016,45(3):475-482. |
Liang Bing , Wang Beifang , Jiang Liguo ,et al.Broken expand properties of caving rock in shallow buried goal[J].Journal of China University of Mining & Technology,2016,45(3):475-482. | |
14 | 胡高建,杨天鸿,张飞,等.复杂空区群回采围岩破坏模式及区域并行研究[J].采矿与安全工程学报,2017,34(3):565-572. |
Hu Gaojian , Yang Tianhong , Zhang Fei ,et al.Parallel computing technologies for the failure mode and area of surrounding rock in complex goals[J].Journal of Mining & Safety Engineering,2017,34(3):565-572. | |
15 | 孙琦,张向东,杜东宁,等.浅埋采空区对路基稳定性影响的数值模拟[J].中国地质灾害与防治学报,2015,26(2):127-131. |
Sun Qi , Zhang Xiangdong , Du Dongning ,et al.Numerical simulation of the impact of shallow seam goaf on highway safety[J].The Chinese Journal of Geological Hazard and Control,2015,26(2):127-131. | |
16 | 于跟波,杨鹏,陈赞成.缓倾斜薄矿体矿柱回采采场围岩稳定性研究[J].煤炭学报,2013,38(增2):294-298. |
Yu Genbo , Yang Peng , Chen Zancheng .Study on surrounding rock stability of pillar extraction in thin gently inclined ore body[J].Journal of China Coal Society,2013,38(Supp.2):294-298. | |
17 | Lu H J , Yan S H , Pan G H .Stability comprehensive analysis model of iron deposit retained goaf[J].Applied Mechanics and Materials,2013,256(1):2688-2691. |
18 | 张洋,李占金,李示波,等.某矿采空区数值模拟研究与稳定性分析[J].矿业研究与开发,2013,33(4):59-61. |
Zhang Yang , Li Zhanjin , Li Shibo ,et a1.Numerical simulation and stability analysis of mined-out area in a mine[J].Mining Research and Development,2013,33(4):59-61. | |
19 | Castellanza R , Gerolymatou E , Nova R. An attempt to predict the failure time of abandoned mine pillars[J].Rock Mechanics and Rock Engineering,2008,41(3):377-401. |
20 | 杨逾,于洁瑜,王宇.条带开采采空区覆岩移动规律数值模拟分析[J].中国地质灾害与防治学报,2017,28(1):96-101. |
Yang Yu , Yu Jieyu , Wang Yu .Numerical simulation study on movement law of overlying strata of goaf in strip mining[J].The Chinese Journal of Geological Hazard and Control,2017,28(1):96-101. | |
21 | 王军,蒋清南,曹平,等.流变作用下露采岩质边坡和采空区的稳定性分析[J].矿业研究与开发,2011,31(5):87-89. |
Wang Jun , Jiang Qingnan , Cao Ping ,et a1.Analysis on stability of goaf and open-pit rock slope based on rheological mechanics of rock material[J].Mining Research and Development,2011,31(5):87-89. | |
22 | 姜立春,贾晓川.采空区群的亚稳定“短板”单元甄别[J].地下空间与工程学报,2017,13(增1):344-348. |
Jiang Lichun , Jia Xiaochuan .Short board metastable unit search method for group of mined out area[J].Chinese Journal of Underground Space and Engineering,2017,13(Supp.1):344-348. |
[1] | 王史文, 王晟, 凌炜佳, 朱忠华, 杨鑫源, 沙文忠, 杨家宏. 基于无人机航测的自然崩落法采矿地表塌陷规律研究[J]. 黄金科学技术, 2024, 32(4): 654-665. |
[2] | 周科平,曹立雄,李杰林,张玮,杨承业,张孝平,高乐. 复杂采空区群稳定性数值分析及安全分级评价[J]. 黄金科学技术, 2022, 30(3): 324-332. |
[3] | 李杰林,高乐,杨承业,周科平. 大型复杂采空区群的稳定性数值分析及隐患区域预测[J]. 黄金科学技术, 2022, 30(3): 315-323. |
[4] | 高远,陈庆发,蒋腾龙. 大新锰矿复杂空区群三维数值模型构建方法及胶结充填治理研究[J]. 黄金科学技术, 2019, 27(6): 851-861. |
[5] | 杨仕教,王志会. 上覆公路浅埋采空区群稳定性数值模拟[J]. 黄金科学技术, 2019, 27(4): 505-512. |
[6] | 谢学斌,熊胡晨,谢和荣,李建坤,田听雨. 考虑水平荷载的采空区群系统灾变失稳模型[J]. 黄金科学技术, 2019, 27(3): 368-377. |
[7] | 白朝阳,王国伟,张鹏,刘拴平. 水平采空区群条件下矿柱回采爆破位置研究[J]. 黄金科学技术, 2017, 25(4): 81-86. |
[8] | 肖伟晶,陈辰,李永欣,王晓军,曹世荣,韩建文. 分级加载条件下深部灰岩蠕变试验及模型[J]. 黄金科学技术, 2017, 25(2): 76-82. |
[9] | 王培月,王谦源. 玲珑金矿东山塌陷区的锚注联合治理[J]. J4, 2004, 12(6): 27-30. |
|