基于NPR锚索监测的顺层岩质边坡多阶变形规律研究

doi:10.13722/j.cnki.jrme.2023.0843

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (2341 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要山西煤系地层多发育砂泥岩互层的顺层岩质边坡，受降雨及地下水等影响，滑坡灾害较为频发。为研究含软弱夹层顺层岩质边坡在NPR锚索支护下的多阶变形规律，对于坡体受控于多条陡直贯通裂隙的边坡，基于极限平衡法，全面考虑坡脚临空面高度h、岩层倾角、坡面倾角、滑体重度、滑面长度L，滑带软岩强度( )力学参数，建立力学分析模型，通过公式推导确定滑带岩土在软化及蠕变过程中不同强度参数下NPR锚索支护边坡的2种类型：整体稳定型和局部稳定型，从机制上分析强降雨过程中2种类型边坡的多阶变形规律。且由公式推导对是否设置NPR锚索的同等条件边坡失稳时滑面长度变化进行定性分析，得到对滑坡规模变化的影响，并对影响滑坡规模变化的参数敏感度进行分析；此外对设置NPR锚索的同等条件边坡，是否考虑水力作用，定性分析其失稳时滑面长度变化，得到对滑坡规模变化的影响。最后利用何满潮团队研发的滑坡地质灾害牛顿力远程监测预警系统在山西省柳林县禄聚茆滑坡的应用，得到监测数据所反映的实际预警结果与理论推导的边坡失稳模式相符，而进一步佐证相关理论研究。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	陈泓蓉1
	龙建辉1
	张吉宁2
	陶志刚3
	4
	刘志军5

关键词 ：边坡工程, 顺层岩质边坡, 多阶变形规律, 负泊松比锚索, 失稳模式, 监测预警

Abstract：The bedding rock slope with sand-mudstone interbeds is mostly developed in the coal-bearing strata of Shanxi Province. Affected by rainfall and groundwater，landslide disasters are frequent. Based on the limit equilibrium method and considering the slope parameters such as the height h of the free surface at the foot of the slope，the slope angle ?，the strata inclination ，the weight ? of the sliding mass，the length L of the slip surface，and the mechanical parameters( )of the soft rock strength of the slip zone，a mechanical analysis model is established to study the multi-stage deformation law of bedding rock slopes with weak interlayers under the support of NPR anchor cables. Through formula derivation，two types of NPR anchor cable-supported slopes under different strength parameters in the softening and creep process of the rock and soil in the slip zone are determined：the overall stable type and the local stable type，and the multi-stage deformation laws of the two types of slopes during strong rainfall are analyzed from the mechanism. The formula is derived to qualitatively analyze the change of the length of the sliding surface when the slope is unstable under the same condition of whether the NPR anchor cable is set，and the influence on the change of the landslide scale is obtained，for the same condition slope with NPR anchor cable whether considering the hydraulic action or not，the change of slip surface length is qualitatively analyzed when the slope is unstable，and the influence on the change of landslide scale is obtained. Finally，the application of the remote monitoring and early warning system of Newtonian force of landslide geological disaster developed by He Manchao?s team in the Lujumao landslide in Liulin County，Shanxi Province is used. The actual early warning results reflected by the monitoring data are consistent with the theoretical derivation of the slope instability model.

Key words： slope engineering bedding rock slope multistage deformation law negative poisson?s ration anchor cable failure mode monitoring and early warning

引用本文:

陈泓蓉1，龙建辉1，张吉宁2，陶志刚3，4，刘志军5. 基于NPR锚索监测的顺层岩质边坡多阶变形规律研究[J]. 岩石力学与工程学报, 2024, 43(7): 1763-1774.
CHEN Hongrong1，LONG Jianhui1，ZHANG Jining2，TAO Zhigang3，4，LIU Zhijun5. Research on multistage deformation law of bedding rock slopes based on NPR anchor cable monitoring. , 2024, 43(7): 1763-1774.

链接本文:

http://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2023.0843 或 http://rockmech.whrsm.ac.cn/CN/Y2024/V43/I7/1763

[2]	龙建辉，赵邦强，李坤. 顺层岩质边坡多级滑动模式及成因机制分析[J]. 中国矿业大学学报，2016，45(6)：1 156-1 163.(LONG Jianhui，ZHAO Bangqiang，LI Kun. Multistage sliding mode and formation mechanism of bedding rock slope[J]. Journal of China University of Mining and Technology，2016，45(6)：1 156-1 163.(in Chinese))
[12]	高永涛，肖术，吴顺川，等. 顺层岩质边坡变形破坏特征及稳定性数值模拟[J]. 工程科学学报，2015，37(11)：1 403-1 409.(GAO Yongtao，XIAO Shu，WU Shunchuan，et al. Numerical simulation of the deformation and failure characteristics of consequent rock slopes and their stability[J]. Chinese Journal of Engineering，2015，37(11)：1 403-1 409.(in Chinese))
[14]	谭福林，胡新丽，张玉明，等. 考虑渐进破坏过程的滑坡推力计算方法[J]. 吉林大学学报：地球科学版，2018，48(1)：193-202.(TAN Fulin，HU Xinli，ZHANG Yuming，et al. Calculation method of landslide thrust considering progressive failure process[J]. Journal of Jilin University：Earth Science，2018，48(1)：193-202.(in Chinese))
[17]	文豪，陈国庆，李红，等. 考虑降雨滑坡多级滑动的改进传递系数法研究[J]. 地质科技通报，2022，41(6)：162-168.(WEN Hao，CHEN Guoqing，LI Hong，et al. Improved transfer coefficient method considering multistage sliding of rainfall landslides[J]. Bulletin of Geological Science and Technology，2022，41(6)：162-168.(in Chinese))
[22]	HOEK E，BRAY J W. Rock slope engineering[M]. London：Revised Second Edition，1977：12-14.
[4]	LAW K T，LUMB P. Alimit equilibrium analysis of progressive failure in the stability of slopes[J]. Canadian Geotechnical Journal，1978，15(1)：113-122.
[7]	何满潮. 基于界面牛顿力测量的双体灾变力学模型研究[J]. 岩石力学与工程学报，2016，35(11)：2 161-2 173.(HE Manchao. Research on the double-block mechanics based on Newton force measurement[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(11)：2 161-2 173.(in Chinese))
[9]	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.(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.(in Chinese))
[5]	何满潮. 滑坡地质灾害远程监测预报系统及工程应用[J]. 岩石力学与工程学报，2009，28(6)：1 081-1 090.(HE Manchao. Realtime 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)：1 081-1 090.(in Chinese))
[8]	何满潮，任树林，陶志刚. 滑坡地质灾害牛顿力远程监测预警系统及工程应用[J]. 岩石力学与工程学报，2021，40(11)：2 161-2 172. (HE Manchao，REN Shulin，TAO Zhigang. Remote monitoring and forecasting system of Newton force for landslide geological hazards and itsengineering application[J]. Chinese Journal of Rock Mechanics and Engineering，2021，40(11)：2 161-2 172.(in Chinese))
[10]	李安洪，周德培，冯君. 顺层岩质路堑边坡破坏模式及设计对策[J]. 岩石力学与工程学报，2009，28(增1)：2 915-2 921.(LI Anhong，ZHOU Depei，FENG Jun. Failure modes of bedding rock cutting slope and design countermeasures[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(Supp.1)：2 915-2 921.(in Chinese))
[15]	张恒通，朱冬春，王鹏，等. 顺层岩质边坡变形破坏机制分析[J]. 公路，2021，66(3)：67-71.(ZHANG Hengtong，ZHU Dongchun，WANG Peng，et al. Analysis of deformation and failure mechanism of bedding rock slope[J]. Highway，2021，66(3)：67-71.(in Chinese))
[18]	HE M C，GONG W L，WANG J，et al. Development of novel energy absorbing bolt with extraordinarily large elongation and constant resistance[J]. International Journal of Rock Mechanics and Mining Sciences，2014，67(4)：29-42.
[20]	胡其志，周辉，肖本林，等. 水力作用下顺层岩质边坡稳定性分析[J]. 岩土力学，2010，31(11)：3 594-3 598.(HU Qizhi，ZHOU Hui，XIAO Benlin，et al. Analysis of stability of rock bedded slope under hydraulic pressure[J]. Rock and Soil Mechanics，2010，31(11)：3 594-3 598.(in Chinese))
[25]	章光，朱维申. 参数敏感性分析与试验方案优化[J]. 岩土力学，1993，14(1)：51-58.(ZHANG Guang，ZHU Weishen. Parameter sensitivity analysis and experimental optimization[J]. Rock and Soil Mechanics，1993，14(1)：51-58.(in Chinese))
[1]	龙建辉，任杰，曾凡桂，等. 双软弱夹层岩质滑坡的滑动模式及变形规律[J]. 煤炭学报，2019，44(10)：3 031-3 040.(LONG Jianhui，REN Jie，ZENG Fangui，et al. Sliding mode and deformation law of double weak interlayer rock landslide[J]. Journal of China Coal Society，2019，44(10)：3 031-3 040.(in Chinese))
[3]	唐浩. 顺层岩质边坡稳定性影响因素分析[硕士学位论文][D]. 武汉：武汉理工大学，2009.(TANG Hao. Study on factors of stability of rock bedded slope[M. S. Thesis][D]. Wuhan：Wuhan University of Science，2009.(in Chinese))
[6]	何满潮，李晨，宫伟力，等. NPR锚杆/索支护原理及大变形控制技术[J]. 岩石力学与工程学报，2016，35(8)：1 513-1 529.(HE Manchao，LI Chen，GONG Weili，et al. Support principles of NPR bolts/cables and control techniques of large deformation[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(8)：1 513-1 529. (in Chinese))
[11]	邹宗兴，唐辉明，熊承仁，等. 大型顺层岩质滑坡渐进破坏地质力学模型与稳定性分析[J]. 岩石力学与工程学报，2012，31(11)：2 222-2 231.(ZOU Zongxing，TANG Huiming，XIONG Chengren，et al. Geomechanical model of progressive failure for large consequent bedding rockslide and its stability analysis[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(11)：2 222-2 231.(in Chinese))
[13]	赵邦强，龙建辉，方静. 弱层控制顺层岩质边坡稳定性及破坏模式分析[J]. 煤炭技术，2016，35(11)：216-218.(ZHAO Bangqiang，LONG Jianhui，FANG Jing. Stability and failure mode of bedding rock slope under control of weak layer[J]. Coal Technology，2016，35(11)：216-218.(in Chinese))
[16]	张令非，陈忠辉，唐岳松. 含弱层边坡分区滑动破坏模式及演化规律研究[J]. 岩石力学与工程学报，2021，40(6)：1 145-1 154. (ZHANG Lingfei，CHEN Zhonghui，TANG Yuesong. Study on regional sliding failure modes and evolution regularity of slopes with weak layers.[J] Chinese Journal of Rock Mechanics and Engineering，2021，40(6)：1 145-1 154.(in Chinese))
[21]	李伟，肖蓉，吴礼舟. 岩质边坡中结构面上水压分布假设的改进研究[J]. 岩石力学与工程学报，2017，36(3)：599-608.(LI Wei，XIAO Rong，WU Lizhou. Improvement of water pressure distribution along the structural plane in rock slopes[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(3)：599-608.(in Chinese))
[23]	舒继森，王兴中，周毅勇. 岩石边坡中滑动面水压分布假设的改进[J]. 中国矿业大学学报，2004，33(5)：509-512.(SHU Jisen，WANG Xingzhong，ZHOU Yiyong. Improvement on assumption for water pressure distributing on failure surface in rock slope[J]. Journal of China University of Mining and Technology，2004，33(5)：509-512.(in Chinese))
[26]	孙光林，陶志刚，宫伟力. 边坡灾害监测预警物联网系统及工程应用[J]. 中国矿业大学学报，2017，46(2)：285-291.(SUN Guanglin，TAO Zhigang，GONG Weili. Slope disaster monitoring and early warning network system and its engineering application[J]. Journal of China University of Mining and Technology，2017，46(2)：285-291.(in Chinese))
[19]	舒继森，唐震，才庆祥. 水力学作用下顺层岩质边坡稳定性研究[J]. 中国矿业大学学报，2012，41(4)：521-525.(SHU Jisen，TANG Zhen，CAI Qingxiang. Research on stability of bedding rock slopes under hydraulic pressure[J]. Journal of China University of Mining and Technology，2012，41(4)：521-525.(in Chinese))
[24]	叶海林，黄润秋，郑颖人，等. 岩质边坡锚杆支护参数地震敏感性分析[J]. 岩土工程学报，2010，32(9)：1 374-1 379.(YE Hailin，HUANG Runqiu，ZHENG Yingren，et al. Sensitivity analysis of parameters for bolts in rock slopes under earthquakes[J]. Chinese Journal of Geotechnical Engineering，2010，32(9)：1 374-1 379.(in Chinese))