Study on 3D modeling method and reinforcement scheme of large and complex open-pit mine

Tao Zhigang; Ren Shulin; Pang Shihui; Xu Haotian; He Manchao

doi:10.19606/j.cnki.jmst.2021.04.004

Volume 6 Issue 4

Jul. 2021

Turn off MathJax

Article Contents

Article Navigation > Journal of Mining Science and Technology > 2021 > 6(4): 397-408

Tao Zhigang, Ren Shulin, Pang Shihui, Xu Haotian, He Manchao. Study on 3D modeling method and reinforcement scheme of large and complex open-pit mine[J]. Journal of Mining Science and Technology, 2021, 6(4): 397-408. doi: 10.19606/j.cnki.jmst.2021.04.004

Citation:

PDF( 22022 KB)

Study on 3D modeling method and reinforcement scheme of large and complex open-pit mine

doi: 10.19606/j.cnki.jmst.2021.04.004

Tao Zhigang^{1, 2
,},
Ren Shulin^{1, 2
,
,},
Pang Shihui^{1, 2},
Xu Haotian^{1, 2},
He Manchao^{1, 2}

1.
State key laboratory for GeoMechanics and Deep Underground Engineering, Beijing 100083, China
2.
School of Mechanics and Civil Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China

Received Date: 2020-09-30
Rev Recd Date: 2020-10-28
Publish Date: 2021-08-01

Abstract

Abstract

Large-scale topping deformation occurred in the southwest stope of Changshanhao Open-pit Gold Mine in Inner Mongolia.Through systematic investigation of the engineering geological conditions and rock mass structure types, the deformation characteristics and failure mechanism of the stope are studied in depth.Taking this project as an example, the 3DMine-FLAC^3D large-scale complex geological body high-precision coupling modeling method and modeling process are introduced in detail.Based on this, a slope reinforcement scheme with constant resistance and large deformation anchor cable is proposed, and a numerical simulation method is used to make a comparative study with the original support scheme.The research results show that the geological structure of the southwest stope is complex.Faults and joints are developed.The rock mass in the toppling area is mainly slate and schist with low bending strength, and small deformation anchor cables are used in the supporting structure, which cannot resist large slope deformation.The combined effect of these factors leads to the occurrence of dumping instability.The reinforcement scheme to constant-resistance and large-deformation anchor cables can effectively control the slope deformation and a better support effect is obtained.
- slope engineering,
- toppling deformation,
- coupled modeling,
- deformation mechanism,
- constant resistance and large deformation anchor cable

FullText(HTML)

References(28)

References

[1]	黄润秋. 20世纪以来中国的大型滑坡及其发生机制[J]. 岩石力学与工程学报, 2007, 26(3): 433-454. doi: 10.3321/j.issn:1000-6915.2007.03.001 Huang Runqiu. Large-scale landslides and their sliding mechanisms in China since the 20th century[J]. Chinese Journal of Rock Mechanics and Engineering, 2007, 26(3): 433-454. doi: 10.3321/j.issn:1000-6915.2007.03.001
[2]	Froude M J, Petley D N. Global fatal landslide occurrence from 2004 to 2016[J]. Natural Hazards and Earth System Sciences, 2018, 18(8): 2161-2181. doi: 10.5194/nhess-18-2161-2018
[3]	杜时贵. 大型露天矿山边坡稳定性等精度评价方法[J]. 岩石力学与工程学报, 2018, 37(6): 1301-1331. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201806001.htm Du Shigui. Method of equal accuracy assessment for the stability analysis of large open-pit mine slopes[J]. Chinese Journal of Rock Mechanics and Engineering, 2018, 37(6): 1301-1331. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201806001.htm
[4]	杨天鸿, 张锋春, 于庆磊, 等. 露天矿高陡边坡稳定性研究现状及发展趋势[J]. 岩土力学, 2011, 32(5): 1437-1451, 1472. doi: 10.3969/j.issn.1000-7598.2011.05.025 Yang Tianhong, Zhang Fengchun, Yu Qinglei, et al. Research situation of open-pit mining high and steep slope stability and its developing trend[J]. Rock and Soil Mechanics, 2011, 32(5): 1437-1451, 1472. doi: 10.3969/j.issn.1000-7598.2011.05.025
[5]	卢世宗. 我国矿山边坡研究的基本情况和展望[J]. 金属矿山, 1999(9): 6-10. https://www.cnki.com.cn/Article/CJFDTOTAL-JSKS199909001.htm Lu Shizong. Basic conditions and prospect of China's mine slope research[J]. Metal Mine, 1999(9): 6-10. https://www.cnki.com.cn/Article/CJFDTOTAL-JSKS199909001.htm
[6]	De Freitas M H, Watters R J. Some field examples of toppling failure[J]. Géotechnique, 1973, 23(4): 495-513. doi: 10.1680/geot.1973.23.4.495
[7]	Goodman R E, Bray J W. Toppling of rock slopes, specialty conference on rock engineering for foundations and slopes[J]. American Society of Civil Engineering, 1976(2): 201-234. http://www.researchgate.net/publication/285237820_Toppling_of_rock_slopes_specialty_conference_on_rock_engineering_for_foundations_and_slopes
[8]	Hoek E, Bray J D. Rock slope engineering[M]. Boca Raton: CRC Press, 1981.
[9]	Aydan Ö, Kawamoto T. The stability of slopes and underground openings against flexural toppling and their stabilisation[J]. Rock Mechanics and Rock Engineering, 1992, 25(3): 143-165. doi: 10.1007/BF01019709
[10]	Adhikary D P, Dyskin A V, Jewell R J, et al. A study of the mechanism of flexural toppling failure of rock slopes[J]. Rock Mechanics and Rock Engineering, 1997, 30(2): 75-93. doi: 10.1007/BF01020126
[11]	Adhikary D P, Dyskin A V. Modelling of progressive and instantaneous failures of foliated rock slopes[J]. Rock Mechanics and Rock Engineering, 2007, 40(4): 349-362. doi: 10.1007/s00603-006-0085-8
[12]	陈红旗, 黄润秋. 反倾层状边坡弯曲折断的应力及挠度判据[J]. 工程地质学报, 2004, 12(3): 243-246, 273. doi: 10.3969/j.issn.1004-9665.2004.03.004 Chen Hongqi, Huang Runqiu. Stress and flexibility criteria of bending and breaking in a countertendency layered slope[J]. Journal of Engineering Geology, 2004, 12(3): 243-246, 273. doi: 10.3969/j.issn.1004-9665.2004.03.004
[13]	卢海峰, 刘泉声, 陈从新. 反倾岩质边坡悬臂梁极限平衡模型的改进[J]. 岩土力学, 2012, 33(2): 577-584. doi: 10.3969/j.issn.1000-7598.2012.02.040 Lu Haifeng, Liu Quansheng, Chen Congxin. Improvement of cantilever beam limit equilibrium model of counter-tilt rock slopes[J]. Rock and Soil Mechanics, 2012, 33(2): 577-584. doi: 10.3969/j.issn.1000-7598.2012.02.040
[14]	左保成, 陈从新, 刘小巍, 等. 反倾岩质边坡破坏机理模型试验研究[J]. 岩石力学与工程学报, 2005, 24(19): 3505-3511. doi: 10.3321/j.issn:1000-6915.2005.19.017 Zuo Baocheng, Chen Congxin, Liu Xiaowei, et al. Modeling experiment study on failure mechanism of counter-tilt rock slope[J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(19): 3505-3511. doi: 10.3321/j.issn:1000-6915.2005.19.017
[15]	邱俊, 任光明, 王云南. 层状反倾-顺倾边坡倾倒变形形成条件及发育规模特征[J]. 岩土力学, 2016, 37(S2): 513-524, 532. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX2016S2066.htm Qiu Jun, Ren Guangming, Wang Yunnan. Characteristics of forming conditions and development scale of toppling in anti-dip and dip stratified slopes[J]. Rock and Soil Mechanics, 2016, 37(S2): 513-524, 532. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX2016S2066.htm
[16]	黄润秋, 赵建军, 巨能攀, 等. 汤屯高速公路顺层岩质边坡变形机制分析及治理对策研究[J]. 岩石力学与工程学报, 2007, 26(2): 239-246. doi: 10.3321/j.issn:1000-6915.2007.02.003 Huang Runqiu, Zhao Jianjun, Ju Nengpan, et al. Study on deformation mechanism and control method of bedding rock slope along tangtun expressway[J]. Chinese Journal of Rock Mechanics and Engineering, 2007, 26(2): 239-246. doi: 10.3321/j.issn:1000-6915.2007.02.003
[17]	殷跃平. 斜倾厚层山体滑坡视向滑动机制研究: 以重庆武隆鸡尾山滑坡为例[J]. 岩石力学与工程学报, 2010, 29(2): 217-226. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201002002.htm Yin Yueping. Mechanism of apparent dip slide of inclined bedding rockslide—a case study of jiweishan rockslide in Wulong, Chongqing[J]. Chinese Journal of Rock Mechanics and Engineering, 2010, 29(2): 217-226. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201002002.htm
[18]	龚文俊, 陶志刚, 何满潮. 岩质边坡弯曲倾倒破坏及支护DDA方法模拟[J]. 矿业科学学报, 2019, 4(6): 489-497. http://kykxxb.cumtb.edu.cn/article/id/250 Gong Wenjun, Tao Zhigang, He Manchao. Using the discontinuous deformation analysis method to analyze the flexural toppling failure of the rock slope and the reinforcement[J]. Journal of Mining Science and Technology, 2019, 4(6): 489-497. http://kykxxb.cumtb.edu.cn/article/id/250
[19]	陈庆发, 杨家彩, 高远, 等. 大型复杂地质体三维数值模型构建方法比较研究[J]. 岩土力学, 2016, 37(S2): 753-760. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX2016S2095.htm Chen Qingfa, Yang Jiacai, Gao Yuan, et al. Comparative study of construction method for 3D numerical model of large complex geologic body[J]. Rock and Soil Mechanics, 2016, 37(S2): 753-760. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX2016S2095.htm
[20]	李翔, 王金安, 张少杰. 复杂地质体三维数值建模方法研究[J]. 西安科技大学学报, 2012, 32(6): 676-681. doi: 10.3969/j.issn.1672-9315.2012.06.002 Li Xiang, Wang Jin'an, Zhang Shaojie. 3D modeling method of complicated geological body[J]. Journal of Xi'an University of Science and Technology, 2012, 32(6): 676-681. doi: 10.3969/j.issn.1672-9315.2012.06.002
[21]	Wang Y S, Zhao B, Li J. Mechanism of the catastrophic June 2017 landslide at xinmo village, songping river, Sichuan Province, China[J]. Landslides, 2018, 15(2): 333-345. doi: 10.1007/s10346-017-0927-3
[22]	Stead D, Wolter A. A critical review of rock slope failure mechanisms: The importance of structural geology[J]. Journal of Structural Geology, 2015, 74: 1-23. doi: 10.1016/j.jsg.2015.02.002
[23]	Camones L A M, Vargas E D A Jr, de Figueiredo R P Jr, et al. Application of the discrete element method for modeling of rock crack propagation and coalescence in the step-path failure mechanism[J]. Engineering Geology, 2013, 153: 80-94. doi: 10.1016/j.enggeo.2012.11.013
[24]	Marschalko M, Yilmaz I, Bednárik M, et al. Influence of underground mining activities on the slope deformation genesis: Doubrava Vrchovec, Doubrava Ujala and Staric case studies from Czech Republic[J]. Engineering Geology, 2012, 147/148: 37-51. doi: 10.1016/j.enggeo.2012.07.014
[25]	褚娜娜. 基于3DMine软件三维地质模型在陕南汉阴长沟金矿中的应用[D]. 西安: 长安大学, 2012.
[26]	He M C, Gong W L, Wang J, et al. Development of a novel energy-absorbing bolt with extraordinarily large elongation and constant resistance[J]. International Journal of Rock Mechanics and Mining Sciences, 2014, 67: 29-42. doi: 10.1016/j.ijrmms.2014.01.007
[27]	陶志刚, 李梦楠, 庞仕辉, 等. 高恒阻大变形锚索静力学特性数值模拟分析及应用[J]. 矿业科学学报, 2020, 5(1): 34-44. http://kykxxb.cumtb.edu.cn/article/id/263 Tao Zhigang, Li Mengnan, Pang Shihui, et al. Research on mechanical property and engineering application of cable with high constant resistance and large deformation[J]. Journal of Mining Science and Technology, 2020, 5(1): 34-44. http://kykxxb.cumtb.edu.cn/article/id/263
[28]	何满潮. 滑坡地质灾害远程监测预报系统及其工程应用[J]. 岩石力学与工程学报, 2009, 28(6): 1081-1090. doi: 10.3321/j.issn:1000-6915.2009.06.001 He Manchao. Real-time remote monitoring and forecasting system for geological disasters of landslides and its engineering application[J]. Chinese Journal of Rock Mechanics and Engineering, 2009, 28(6): 1081-1090. doi: 10.3321/j.issn:1000-6915.2009.06.001

Relative Articles

Supplements(0)

Cited By

Proportional views

Proportional views

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Figures(17) / Tables(1)

Get Citation

PDF

XML

Article Metrics

Article views (759) PDF downloads(39)

Study on 3D modeling method and reinforcement scheme of large and complex open-pit mine

doi: 10.19606/j.cnki.jmst.2021.04.004

Abstract

References

Proportional views

Catalog

通讯作者: 陈斌, bchen63@163.com

Article Metrics

Proportional views

Export File

Citation

Format

Content