破碎围岩结构面特征及稳定性分析

doi:10.16265/j.cnki.issn1003-3033.2019.09.022

中国安全科学学报 ›› 2019, Vol. 29 ›› Issue (9): 138-143.doi: 10.16265/j.cnki.issn1003-3033.2019.09.022

破碎围岩结构面特征及稳定性分析

赵康^1,2 副教授, 王庆², 王军强¹, 索天元¹, 郝蛟龙¹, 柳小胜³

1 灵宝金源矿业股份有限公司,河南灵宝 472500;
2 江西理工大学建筑与测绘工程学院,江西赣州 341000;
3 长沙矿山研究院有限责任公司,湖南长沙 410012

收稿日期:2019-05-12 修回日期:2019-07-15 出版日期:2019-09-28 发布日期:2020-10-30
作者简介:赵康 (1980—),男,河南周口人,博士,副教授,主要从事工程岩体监测及稳定性、岩土工程数值计算方面的教学与研究工作。E-mail:zhaok_666666@163.com。
基金资助:
国家自然科学基金资助(51764013);中国博士后基金面上资助(2019M652277);江西省自然科学基金重点资助(20192ACBL21014);研究生创新专项资金资助(XS2018-S012、ZS2018-S031)。

Structural plane characteristics and stability of broken surrounding rocks

ZHAO Kang^1,2, WANG Qing², WANG Junqiang¹, SUO Tianyuan¹, HAO Jiaolong¹, LIU Xiaosheng³

1 Lingbao Jinyuan Mining Company Limited, Lingbao Henan 472500, China;
2 School of Architectural and Surveying & Mapping Engineering, Jiangxi University of Science and Technology, Ganzhou Jiangxi 341000, China;
3 Changsha Institute of Mining Research Limited Company, Changsha Hunan 410012, China

Received:2019-05-12 Revised:2019-07-15 Online:2019-09-28 Published:2020-10-30

摘要/Abstract

摘要： 为评价某金矿极破碎围岩的稳定性,测量并分析该矿围岩Ⅳ、Ⅴ级微型裂隙结构面,选取+260、+295、+330 m等3个生产中段;利用详细测线法分析节理间距、产状、起伏形态、粗糙度、张开度、渗水性对围岩稳定性的影响,使用极点图、玫瑰花图探讨优势结构面产状的分布特性。结果表明:该矿围岩节理裂隙较发育,节理分布较为紧密,平均间距小于1 m,且主要集中在0.2～0.6 m,围岩整体属于破碎、极破碎岩体,稳定性较差;该矿+260、+295和+330 m中段的产状优势结构面相似,都具有明显集中现象,倾向主要集中在324～360 °和0～35 °,倾角主要集中在70～79 °;结构面的起伏状态多为平直型,对结构面稳定性影响较大;结构面之间结合较为紧密,填充物较少,对结构面的稳定性影响较小。

关键词: 破碎围岩, 围岩稳定性, 结构面特征, 节理裂隙, 详细测线法

Abstract: In order to evaluate the stability of extremely fractured surrounding rocks in a gold mine, micro-fracture structural planes of the IV and V grade of the surrounding rocks in the mine were measured and analyzed in three production sections of +260, +295 and +330 m. The influences of joint spacing, occurrence, undulating shape, roughness, openness and seepage on surrounding rock stability were analyzed by scanline method. The distribution characteristics of dominant structural planes occurrence were discussed by using pole plot and rose plot. The results show that the surrounding rock joints are well developed and closely distributed, and the average spacing is less than 1m and is mainly concentrated in 0.2-0.6 m. The surrounding rocks are broken and extremely broken rock mass with poor stability. The dominant occurrence has obvious concentration in the middle of +260, +295 and +330 m. The dip is mainly concentrated at 324-360 ° and 0-35 °, and the dip direction is mainly concentrated at 70-79 °. The undulating state of the structural plane is mostly straight, which has a great influence on the stability of the structural plane. The structural surfaces are tightly combined with less filler, which has less influence on the structural surface stability.

Key words: broken surrounding rocks, surrounding rock stability, structural plane characteristics, joint crack, scanline method

中图分类号:

X935

赵康, 王庆, 王军强, 索天元, 郝蛟龙, 柳小胜. 破碎围岩结构面特征及稳定性分析[J]. 中国安全科学学报, 2019, 29(9): 138-143.

ZHAO Kang, WANG Qing, WANG Junqiang, SUO Tianyuan, HAO Jiaolong, LIU Xiaosheng. Structural plane characteristics and stability of broken surrounding rocks[J]. China Safety Science Journal, 2019, 29(9): 138-143.

参考文献

[1] 刘梦红, 刘何清, 吴扬. 2015年我国矿山事故统计及规律分析[J]. 采矿技术, 2017, 17(3): 49-52.
LIU Menghong, LIU Heqing, WU Yang. Statistics and regularity analysis of mine accidents in China in 2015[J]. Mining Technology, 2017, 17(3): 49-52.
[2] 康红普, 司林坡, 苏波. 煤岩体钻孔结构观测方法及应用[J]. 煤炭学报, 2010, 35(12): 1 949-1 956.
KANG Hongpu, SI Linpo, SU Bo. Borehole observation methods in coal and rock mass and their applications[J]. Journal of China Coal Society, 2010, 35(12): 1 949-1 957.
[3] 齐消寒, 张东明. 钻孔成像在GSI系统估算深部岩体力学参数中的应用[J]. 中国安全科学学报, 2016, 26(4): 131-136.
QI Xiaohan, ZHANG Dongming. Application of bore-hole TV exploration technology to estimation of mechanical parameters of deep rock mass by quantitative GSI system[J]. China Safety Science Journal, 2016, 26(4): 131-136.
[4] OOTSUKA Y, ISHIKAWA T, TAJIMA K, et al. Rock mass property evaluation based on the borehole wall images taken by using an ultrasonic scanner (USS)[J]. Journal of Nepal Geological Society, 2018, 55(1): 1-6.
[5] STURZENEGGER M, STEAD D. Close-range terrestrial digital photogrammetry and terrestrial laser scanning for discontinuity characterization on rock cuts[J]. Engineering Geology, 2009, 106(3/4): 163-182.
[6] FICKER T, MARTIEK D. Alternative method for assessing the roughness coefficients of rock joints[J]. Journal of Computing in Civil Engineering, 2015, 30(4): 04015059.
[7] 赵兴东, 刘杰, 张洪训, 等. 基于摄影测量的岩体结构面数字识别及采场稳定性分级[J]. 采矿与安全工程学报, 2014, 31(1): 127-133.
ZHAO Xingdong, LIU Jie, ZHANG Hongxun, et al. Rockmass structural plane digital recognition and stope stability classification based on the photographic surveying method[J]. Journal of Mining and Safety Engineering, 2014, 31(1): 127－133.
[8] 雷光伟, 杨春和, 王贵宾, 等. 基于结构面综合指标的岩体质量评价及应用[J]. 岩土力学, 2017, 38(8): 2 343-2 350.
LEI Guangwei, YANG Chunhe, WANG Guibin, et al. Rock quality evaluation and application based on comprehensive index of rockmass structures[J]. Rock and Soil Mechanics, 2017, 38(8): 2 343-2 350.
[9] 黄磊, 唐辉明, 张龙, 等. 适用于半迹长测线法的岩体结构面直径Priest-Zhang算法和修正算法适用性[J]. 中南大学学报:自然科学版, 2012, 43(4): 1 405-1 410.
HUANG Lei, TANG Huiming, ZHANG Long, et al. Applicability of Priest-Zhang Algorithm and revised algorithm for semi-trace line sampling to estimate rock discontinuities diameter[J]. Journal of Central South University: Science and Technology, 2012, 43(4): 1 405-1 410.
[10] 赵文, 林韵梅. 结构面岩体的网络模拟研究[J]. 东北大学学报, 1994(2): 128-130.
ZHAO Wen, LIN Yunmei. Study on network simulation of structural rock mass[J]. Journal of Northeastern University, 1994(2): 128-130.
[11] 赵康, 周科平, 张俊萍, 等. 某钨矿山岩体结构面特征分析[J]. 金属矿山, 2017(12): 1-5.
ZHAO Kang, ZHOU Keping, ZHANG Junping, et al. Analysis of structure plane characteristic for rock mass of a tungsten mine[J]. Metal Mine, 2017(12): 1-5.

破碎围岩结构面特征及稳定性分析

Structural plane characteristics and stability of broken surrounding rocks

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