四面楔形体监测敏感部位试验研究

晏长根 安宁 薛志佳 杜柯 许江波 孙巍锋

晏长根,安宁,薛志佳,等. 2021. 四面楔形体监测敏感部位试验研究[J]. 工程地质学报, 29(1): 96-103. doi: 10.13544/j.cnki.jeg.2020-539
引用本文: 晏长根,安宁,薛志佳,等. 2021. 四面楔形体监测敏感部位试验研究[J]. 工程地质学报, 29(1): 96-103. doi: 10.13544/j.cnki.jeg.2020-539
Yan Changgen, An Ning, Xue Zhijia, et al. 2021. Experimental study on monitoring sensitive parts of tetrahedral wedge rock slope[J]. Journal of Engineering Geology, 29(1): 96-103. doi: 10.13544/j.cnki.jeg.2020-539
Citation: Yan Changgen, An Ning, Xue Zhijia, et al. 2021. Experimental study on monitoring sensitive parts of tetrahedral wedge rock slope[J]. Journal of Engineering Geology, 29(1): 96-103. doi: 10.13544/j.cnki.jeg.2020-539

四面楔形体监测敏感部位试验研究

doi: 10.13544/j.cnki.jeg.2020-539
基金项目: 

国家自然科学基金项目 42077265

国家重点研发计划 2019YFC1520601

详细信息
    作者简介:

    晏长根(1975-),男,博士,教授,博士生导师,主要从事岩土工程和工程地质方面的教学和研究工作. E-mail: yanchanggen@163.com

    通讯作者:

    薛志佳(1990-),男,博士,讲师,主要从事软土加固和工程地质方面的教学和研究工作. E-mail: xuegeneral@126.com

  • 中图分类号: P642.3

EXPERIMENTAL STUDY ON MONITORING SENSITIVE PARTS OF TETRAHEDRAL WEDGE ROCK SLOPE

Funds: 

the National Natural Science Foundation of China 42077265

the National Key R&D Program of China 2019YFC1520601

  • 摘要: 针对岩质四面楔形体的监测敏感部位问题,利用自主研制的边坡模型试验平台,开展岩质边坡四面楔形体物理模拟试验,对楔形体在滑动失稳全过程中结构面处的内部位移和内部应力进行监测。结果表明:随着楔形体滑动位移的增加,各位移监测点处位移变化速率的差异越小,楔形体表现出的整体滑动特性更为明显。在楔形体失稳过程前期,位移监测和应力监测敏感部位均在楔形体下部,临近失稳时,楔形体上部为位移监测敏感部位,楔形体中上部为应力监测敏感部位。在楔形体失稳过程前期,监测到的应力值较初始状态便有明显增大,应力监测相比位移监测的反馈更为提前,能够更及时地对边坡变化产生响应。研究结果可对岩质边坡楔形体的安全监测提供参考依据。
  • 图  1  试验装置及模型示意图

    Figure  1.  Diagram of test device and wedge model

    图  2  线拉式内部位移计

    Figure  2.  Line-pull internal displacement meter

    图  3  应变片布设示意图

    Figure  3.  Diagram of strain gauge arrangement

    图  4  楔形体结构面监测点布设图

    a.位移监测点;b.应力监测点

    Figure  4.  Layout of monitoring points for wedge structural surface

    图  5  累计位移量随时间的变化曲线

    Figure  5.  Curve of cumulative displacement with time

    图  6  每一注水阶段内位移变化平均速率

    Figure  6.  Average rate of displacement change in each water injection stage

    图  7  每一注水阶段内V6较V4的提升比率

    Figure  7.  The improvement ratio of V6 to V4 in each water injection stage

    图  8  试验全过程各监测点位移变化平均速率

    Figure  8.  Average rate of displacement change of each monitoring point in the whole test process

    图  9  应力随时间的变化曲线

    Figure  9.  Curve of stress with time

    图  10  试验过程中各监测点处监测值与最终监测值的比值

    Figure  10.  Ratio of the monitored value at each monitoring point to the final monitored value during the test

    图  11  每一注水阶段内应力变化平均速率

    Figure  11.  Average rate of stress change in each water injection stage

    表  1  岩体模型材料基本参数

    Table  1.   Parameters of rock mass model materials

    容重
    /kN·m-3
    弹性模量
    /MPa
    抗剪强度参数
    φ/(°) c/kPa
    24.6 96.5 34 13.3
    下载: 导出CSV
  • Chen Z Y, Wang Y J, Wang X G, et al. 1999. An upper bound wedge failure analysis method[C]//International Symposium on Slope Stability Engineering. Matsuyama, Japan: [s.n.].
    Chen Z Y. 2004. A generalized solution for tetrahedral rock wedge stability analysis[J]. International Journal of Rock Mechanics and Mining Sciences, 41(4): 613-628. doi: 10.1016/j.ijrmms.2003.12.150
    Chen Z Y, Wang X G, Yang J. 2005. Rock slope starility analysis-theory, method and programs[M]. Beijing: China Water & Power Press.
    Deng H, Huang R Q. 1999. The formation mechanism and stability evaluation of Yankou landslide[J]. Journal of Geological Hazards and Environmental Protection, 10(3): 12-18.
    Ding Y, Wang Q C, Shi S Y, et al. 2011. Analysis on kinetic characteristics of landslide by means of monitoring in deep ground[J]. Journal of Engineering Geology, 19(2): 284-288. doi: 10.1631/jzus.B1000185
    Dong W W, Zhu H H, Sun Y J, et al. 2016. Current status and new progress on slope deformation monitoring technologies[J]. Journal of Engineering Geology, 24(6): 1088-1095. http://en.cnki.com.cn/Article_en/CJFDTOTAL-GCDZ201606007.htm
    Dong X J, Xu Q, Tang C, et al. 2015. Characteristics of landslide displacement-time curve by physical simulation experiment[J]. Journal of Engineering Geology, 23(3): 401-407. http://en.cnki.com.cn/Article_en/CJFDTOTAL-GCDZ201503005.htm
    Fan Y B, Hou Y F, Li S H, et al. 2013. Landslide stability analysis based on surface and deep displacement monitoring data[J]. Journal of Engineering Geology, 21(6): 885-891. http://en.cnki.com.cn/Article_en/CJFDTOTAL-GCDZ201306015.htm
    Guo Y J, Wang S F, Li W J. 2013. Application of stress monitoring to highway rock slope[J]. Rock and Soil Mechanics, 34(5): 1397-1342. doi: 10.1016/0003-9861(51)90167-1
    Guo Y J, Cao Z Y, Sheng L J. 2016. The centrifugal model test of cable stress monitoring for rock slope[J]. Journal of Shandong University(Engineering Science), 46(2): 101-107. http://en.cnki.com.cn/Article_en/CJFDTOTAL-SDGY201602015.htm
    Hoek E T, Bray J W. 1981. Rock slope engineering[M]. 3rd ed. London: Institution of Mining and Metallurgy.
    He M C. 2009. Real-time remote monitoring and forecasting system for geological disasters of landslides and its engineering application[J]. Chinese Journal of Rock Mechanics and Engineering, 28(6): 1081-1089. doi: 10.1002/9780470611807.ch2
    He J Y, Sheng C G. 2013. Application of displacement montoring for deep soils on the determination of landslide surface[J]. Journal of Engineering Geology, 15(S1): 489-493.
    Jimenez-Rodriguez R, Sitar N. 2007. Rock wedge stability analysis using system reliability methods[J]. Rock Mechanics and Rock Engineering, 40(4): 419-427. doi: 10.1007/s00603-005-0088-x
    Jiang Q H, Liu X H, Wei W, et al. 2013. A new method for analyzing the stability of rock wedges[J]. International Journal of Rock Mechanics and Mining Sciences, 60 : 413-422. doi: 10.1016/j.ijrmms.2013.01.008
    Liu Z Q, Liao Y L, Zhu Q P. 2004. Analysis of first-stage monitoring anchor bar stress on high slope of TGP permanent lock during operation[J]. Journal of Yangtze River Scientific Research Institute, 21(1): 40-44. http://en.cnki.com.cn/Article_en/CJFDTOTAL-CJKB200401012.htm
    Li Z, Wei J K, Zhang X, et al. 2013. Rock wedge stability analysis using plastic limit analysis method[J]. Disaster Advances, 6(S4): 9-15. doi: 10.1007/s11434-013-6040-7
    Li Z, Zhou Y, Xue L, et al. 2016. Research on calculation method of optimal anchoring angle for wedge rock slope[J]. Science Technology and Engineering, 16(27): 122-125, 130. http://en.cnki.com.cn/Article_en/CJFDTotal-KXJS201627021.htm
    Liang Z L, Li Z. 2014. Study of lower bound method for plastic limit analysis of wedge on consideration of anchor bolt[J]. Applied Mechanics & Materials, 444-445 : 966-970. doi: 10.4028/www.scientific.net/AMM.444-445.966
    Liu C Z. 2019. Analysis methods on the risk identification of landslide disasters[J]. Journal of Engineering Geology, 27(1): 88-97. http://en.cnki.com.cn/Article_en/CJFDTotal-GCDZ201901010.htm
    Ma Z J, Qin, S W, Chen, J J, et al. 2019. A probabilistic method for evaluating wedge stability based on blind data theory[J]. Bulletin of Engineering Geology and the Environment, 78 : 1927-1936. doi: 10.1007/s10064-017-1204-3
    Ni W D, Tang H M, Liu X, et al. 2014. Dynamic stability analysis of wedge in rock slope based on kinetic vector method[J]. Journal of Earth Science, 25(4): 749-756. doi: 10.1007/s12583-014-0462-2
    Qin S W, Ma Z J, Chen J J, et al. 2017. Probablity analysis method and application of wedge stability[J]. Journal of Harbin Institute of Technology, 49(12): 117-122. doi: 10.11918/j.issn.0367-6234.201705028
    Tang H M, Zhou Y T, Chen H K, et al. 2015. Stability analysis for wedge rockmass of underground cavities under dynamic load[J]. Journal of Engineering Geology, 23(3): 485-490. http://en.cnki.com.cn/Article_en/CJFDTOTAL-GCDZ201503019.htm
    Wang Y J, Yin J H, Chen Z Y, et al. 2004. Analysis of wedge stability using different methods[J]. Rock Mechanics and Rock Engineering, 37(2): 127-150. doi: 10.1007/s00603-003-0023-y
    Wang G L, Fan S, Tang Q Y. 2018. Reliability analysis of rock slope excavation considering the stochasticity and finite persistence of wedges[J]. Periodica Polytechnica Civil Engineering, 62(3): 660-669. doi: 10.3311/PPci.11806
    Xu Q, Huang R Q, Yin Y P, et al. 2009. The Jiweishan landslide of June 5, 2009 in Wulong, Chongqing: characteristics and failure mechanism[J]. Journal of Engineering Geology, 17(4): 217-226. doi: 10.1016/S1003-6326(09)60084-4
    Yan C G, Sun W F, Yuan T, et al. 2017. Exploration of stress responses and arrangement of fully grouted bolts based on centrifugal model test of homogeneous rock slope[J]. Coal Geology & Exploration, 45(6): 96-101, 110. http://en.cnki.com.cn/Article_en/CJFDTOTAL-MDKT201706016.htm
    Yan C G, Sun W F, Xu W, et al. 2018. Dynamic early warning analysis and safety classification of slope with single sliding plane based on monitoring of fully grouted bolts[J]. China Journal of Highway and Transport, 31(6): 188-194, 226. http://en.cnki.com.cn/Article_en/CJFDTotal-ZGGL201806006.htm
    Yan C G, Sun W F, Xu J B, et al. 2019. A comprehensive geotechnical engineering test platform for complex slope geological model test: China, ZL201710480631. 1[P]. 2019-07-16.
    Ye T J, Xie Q, Wang Y. 2019. Stability evaluation and classification of debris slopes in eastern Tibet section of G318 highway[J]. Journal of Engineering Geology, 27(4): 914-922.
    Zhang Y S, Gao Y T, Li Z H, et al. 2015. Anchorage Stress Monitoring System in East Mine of Baiyunobo[J]. Metal Mine,(7): 129-134. http://en.cnki.com.cn/Article_en/CJFDTOTAL-JSKS201507030.htm
    Zhang S, Xu Q, Peng D, et al. 2020. Stability analysis of rock wedge slide subjected to groundwater dynamic evolution[J]. Engineering Geology, 270: 105528. doi: 10.1016/j.enggeo.2020.105528
    Zheng J, Kulatilake PHSW, Deng J, et al. 2016. Development of a probabilistic kinematic wedge sliding analysis procedure and application to a rock slope at a hydropower site in China[J]. Bulletin of Engineering Geology & the Environment, 75(4): 1413-1428. doi: 10.1007/s10064-015-0764-3
    Zhou J F, Wang J X. 2017. Lower bound limit analysis of wedge stability using block element method[J]. Computers and Geotechnics, 86 : 120-128. doi: 10.1016/j.compgeo.2016.12.031
    陈祖煜, 汪小刚, 杨健. 2005. 岩质边坡稳定分析-原理·方法·程序[M]. 北京: 中国水利水电出版社.
    邓辉, 黄润秋. 1999. 岩口滑坡形成机制及稳定性评价[J]. 地质灾害与环境保护, 10(3): 12-18. doi: 10.3969/j.issn.1006-4362.1999.03.003
    董秀军, 许强, 唐川, 等. 2015. 滑坡位移-时间曲线特征的物理模拟试验研究[J]. 工程地质学报, 23(3): 401-407. doi: 10.13544/j.cnki.jeg.2015.03.005
    丁瑜, 王全才, 石书云, 等. 2011. 基于深部监测的滑坡动态特征分析[J]. 工程地质学报, 19(2): 284-288. doi: 10.3969/j.issn.1004-9665.2011.02.022
    董文文, 朱鸿鹄, 孙义杰, 等. 2016. 边坡变形监测技术现状及新进展[J]. 工程地质学报, 24(6): 1088-1095. doi: 10.13544/j.cnki.jeg.2016.06.007
    范永波, 侯岳峰, 李世海, 等. 2013. 基于地表及深部位移监测的滑坡稳定性分析[J]. 工程地质学报, 21(6): 885-891. doi: 10.3969/j.issn.1004-9665.2013.06.015
    郭永建, 王少飞, 李文杰. 2013. 应力监测在公路岩质边坡中的应用研究[J]. 岩土力学, 34(5): 1397-1342. http://www.cnki.com.cn/Article/CJFDTotal-YTLX201305025.htm
    郭永建, 曹周阳, 生丽娟. 2016. 岩质边坡锚杆应力监测离心模型试验研究[J]. 山东大学学报(工学版), 46(2): 101-107. doi: 10.6040/j.issn.1672-3961.0.2015.048
    何建友, 盛初根. 2007. 深层土体位移监测在滑坡滑动面确定中的应用[J]. 工程地质学报, 15(S1): 489-493. http://www.gcdz.org/article/id/10976
    何满潮. 2009. 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, 28(6): 1081-1089. doi: 10.3321/j.issn:1000-6915.2009.06.001
    刘祖强, 廖勇龙, 朱全平. 2004. 三峡永久船闸一期高边坡监测锚杆应力分析[J]. 长江科学院院报, 21(1): 40-44. doi: 10.3969/j.issn.1001-5485.2004.01.012
    李泽, 周宇, 薛龙, 等. 2016. 岩质边坡楔形体最优锚固角的计算方法研究[J]. 科学技术与工程, 16(27): 122-125, 130. doi: 10.3969/j.issn.1671-1815.2016.27.021
    刘传正. 2019. 崩塌滑坡灾害风险识别方法初步研究[J]. 工程地质学报, 27(1): 88-97. doi: 10.13544/j.cnki.jeg.2019-009
    秦胜伍, 马中骏, 陈骏骏, 等. 2017. 楔体稳定性概率分析方法及应用[J]. 哈尔滨工业大学学报, 49(12): 117-122. doi: 10.11918/j.issn.0367-6234.201705028
    唐红梅, 周云涛, 陈洪凯, 等. 2015. 动荷载作用下地下洞室楔形体稳定性分析[J]. 工程地质学报, 23(3): 485-490. doi: 10.13544/j.cnki.jeg.2015.03.016
    许强, 黄润秋, 殷跃平, 等. 2009. 2009年6.5重庆武隆鸡尾山崩滑灾害基本特征与成因机理初步研究[J]. 工程地质学报, 17(4): 217-226. http://www.gcdz.org/article/id/8436
    晏长根, 孙巍锋, 袁通, 等. 2017. 均质边坡离心试验锚杆的应力响应及布设探究[J]. 煤田地质与勘探, 45(6): 96-101, 110. doi: 10.3969/j.issn.1001-1986.2017.06.016
    晏长根, 孙巍锋, 徐伟, 等. 2018. 基于锚杆监测的单滑动面边坡动态预警分析及安全分级[J]. 中国公路学报, 31(6): 188-194, 226. doi: 10.3969/j.issn.1001-7372.2018.06.005
    晏长根, 孙巍锋, 许江波, 等. 2019. 一种复杂斜坡地质模型试验用综合岩土工程试验平台: 中国, ZL201710480631. 1[P]. 2019-07-16.
    叶唐进, 谢强, 王鹰. 2019. 国道G318藏东段碎屑斜坡分类与稳定性评判[J]. 工程地质学报, 27(4): 914-922. doi: 10.13544/j.cnki.jeg.2018-058
    张院生, 高永涛, 李振华, 等. 2015. 白云鄂博东矿锚固应力监测系统[J]. 金属矿山,(7): 129-134. doi: 10.3969/j.issn.1001-1250.2015.07.029
  • 加载中
图(11) / 表(1)
计量
  • 文章访问数:  297
  • HTML全文浏览量:  80
  • PDF下载量:  26
  • 被引次数: 0
出版历程
  • 收稿日期:  2020-10-09
  • 修回日期:  2020-12-07
  • 刊出日期:  2021-02-01

目录

    /

    返回文章
    返回