«上一篇/Previous Article|本期目录/Table of Contents|下一篇/Next Article»

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:

第46卷

期数:

2024年第03期

页码:

400-413

栏目:

工程地质与环境灾害

出版日期:

2024-05-15

文章信息/Info

Title:

Excavation Deformation Characteristics and Treatment Effect Inspectionof HighRock Slope with Oblique Intersecting Faults—Taking a High Rock Slope in the Southern Shaanxi, China as an Example

文章编号:

1672-6561(2024)03-0400-14

作者:

石玉玲^1*; 侯明杰¹; 李怀鑫²; 晏长根²; 文奎³

(1. 长安大学 地质工程与测绘学院,陕西 西安 710054; 2. 长安大学 公路学院,陕西 西安 710064; 3. 中电建路桥集团有限公司,北京 100160)

Author(s):

SHI Yu-ling^1*;  HOU Ming-jie¹;  LI Huai-xin²;  YAN Chang-gen²;  WEN Kui³

(1. School of Geological Engineering and Geomatics, Chang'an University, Xi'an 710054, Shaanxi, China; 2. School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China; 3. PowerChina Roadbridge Group Co., Ltd., Beijing 100160, China)

关键词:

断层;  岩质高边坡;  边坡防治;  破坏机制;  数值仿真;  变形特性;  治理评价;  陕西

Keywords:

fault;  high rock slope;  slope prevention and control;  failuremechanism;  numerical simulation;  deformation characteristic;  treatmentevaluation;  Shaanxi

分类号:

P642

DOI:

10.19814/j.jese.2024.02018

文献标志码:

A

摘要:

为厘清断层斜交岩质高边坡开挖变形特性以及边坡治理后的时变特性,以陕南地区某断层斜交岩质高边坡为例,综合采用现场调查、数值模拟以及多点位移监测等方法分析断层斜交岩质高边坡破坏机制,归纳了断层斜交岩质高边坡的主要致灾因子,分析了边坡开挖过程中的变形特性,并探讨了边坡治理的时效性。结果表明:研究区域地形陡峭,受断层和坡脚开挖影响呈现出典型临空地形地貌,且受地质构造影响,出露岩体破碎程度较高,节理裂隙发育; 基于数值仿真论证了断层斜交岩质高边坡采用“上部锚索锁固+中部坡体刷方+下部锚索和抗滑桩加固”方案治理的可行性,现场调查和监测数据结果表明边坡治理效果明显; 断层处流土溶蚀效应明显,强降雨诱发岩质高边坡后缘断层附近平台发生塌陷,在断层和坡脚部位增设排水措施后坡体病害得到有效缓解,整体变形速率得到有效控制。研究成果对断层斜交岩质高边坡的治理及破坏机制分析具有参考意义。

Abstract:

To elucidate the deformation characteristics during excavationof high rock slopes with oblique intersecting faultsand the subsequent time-dependent behaviourafter slope treatment,thecomprehensive case study on a high rock slope with faults in the southern Shaanxiwas conducted.The on-site surveys, numerical simulations, and multi-point displacement monitoring methodswere employedto analyze the failure mechanisms inherent to high rock slopes with oblique intersecting faults,the primary disaster-inducing factors associated with these slopeswere summarized, and the deformation characteristicsduringexcavation processwere analyzed, andthe effectiveness of remedial measures for mitigating issues in high rock slopes with oblique intersecting faultswas discussed. The resultsshowthat the study area has steep terrain and is influenced by faults and excavation at the foot of the slope, exhibiting typical overhanging terrain features, and geological structure affects the degree of exposed rock breakage and joint development. Numerical simulation demonstrates the feasibility of using an “anchor cable reinforces the upper slope + brushing the middle slope + anchor cable and anti-slide pile reinforces the slope foot” plan for high rock slopes with oblique intersecting faults. Combined with on-sitesurveysand monitoring data, it is evident that the slope stabilization treatment has a significant effect. The soil erosion effect at the fault site is substantial, and heavy rainfall has initiated a collapse issue on the platform nearback edge fault of high rock slope.However, by implementing drainage measures near the fault and the base of the slope, the slopedisasterare effectively mitigated while overall deformation ratesare effectively contained. The research results have important reference value for thetreatmentof high rock slopes with oblique intersecting faults and the analysis of their failure mechanisms.

参考文献/References:

[1] DONG M L,ZHANG F M,LV J Q,et al.Study of Stability Influencing Factors of Excavated Anti-dip Rock Slope[J].KSCE Journal of Civil Engineering,2020,24(8):2293-2303.
[2]LU W B,HU Y G,YANG J H,et al.Spatial Distribution of Excavation Induced Damage Zone of High Rock Slope[J].International Journal of Rock Mechanics and Mining Sciences,2013,64:181-191.
[3]杨忠平,张益铭,蒋源文,等.采动作用下含深大岩溶结构面坡体裂隙扩展及变形破坏规律[J].岩土工程学报,2022,44(8):1397-1405.
YANG Zhong-ping,ZHANG Yi-ming,JIANG Yuan-wen,et al.Propagation of Fissures and Deformation and Failure Laws of Karst Slopes with Deep and Large Structural Plane Mining Action[J].Chinese Journal of Geotechnical Engineering,2022,44(8):1397-1405.
[4]兰恒星,彭建兵,祝艳波,等.黄河流域地质地表过程与重大灾害效应研究与展望[J].中国科学:地球科学,2022,52(2):199-221.
LAN Heng-xing,PENG Jian-bing,ZHU Yan-bo,et al.Research on Geological and Surfacial Processes and Major Disaster Effects in the Yellow River Basin[J].Science China:Earth Sciences,2022,52(2):199-221.
[5]LAN H X,ZHANG T W,PENG J B,et al.Large Scale Land Reclamation and the Effects on Hydro-mechanical Behavior in Loess and Loess-derived Fill[J].Engineering Geology,2023,323:107241.
[6]LAN H X,TIAN N M,LI L P,et al.Kinematic-based Landslide Risk Management for the Sichuan-Tibet Grid Interconnection Project(STGIP)in China[J].Engineering Geology,2022,308:106823.
[7]LAN H X,CHEN J H,MACCIOTTA R.Universal Confined Tensile Strength of Intact Rock[J].Scientific Reports,2019,9:6170.
[8]LAN H X,ZHANG Y X,MACCIOTTA R,et al.The Role of Discontinuities in the Susceptibility,Development,and Runout of Rock Avalanches:A Review[J].Landslides,2022,19(6):1391-1404.
[9]LI X S,LI Q H,WANG Y M,et al.Experimental Study on Instability Mechanism and Critical Intensity of Rainfall of High-steep Rock Slopes Under Unsaturated Conditions[J].International Journal of Mining Science and Technology,2023,33(10):1243-1260.
[10]张 莹,苏生瑞,李 鹏.断裂控制的滑坡机理研究:以柳家坡滑坡为例[J].工程地质学报,2015,23(6):1127-1137.
ZHANG Ying,SU Sheng-rui,LI Peng.Numerical Simulation on Mechanism of Fault:Controlled Liujiapo Landslide[J].Journal of Engineering Geology,2015,23(6):1127-1137.
[11]MEBRAHTU T K,HUSSIEN B,BANNING A,et al.Correction to:Predisposing and Triggering Factors of Large-scale Landslides in Debre Sina Area,Central Ethiopian Highlands[J].Bulletin of Engineering Geology and the Environment,2021,80(10):8305-8305.
[12]和大钊,胡 斌,姚文敏,等.断层力学与几何参数对岩质边坡稳定性的影响[J].长江科学院院报,2018,35(1):128-132.
HE Da-zhao,HU Bin,YAO Wen-min,et al.Influence of Mechanical and Geometric Parameters of Faults on Rock Slope Stability[J].Journal ofYangtzeRiver Scientific Research Institute,2018,35(1):128-132.
[13]曹兰柱,王 珍,王 东,等.露天矿含断层逆倾软岩边坡滑移模式及稳定性研究[J].安全与环境学报,2018,18(2):457-461.
CAO Lan-zhu,WANG Zhen,WANG Dong,et al.Study on the Sliding Mode and Stability of Counter-dip Bedded Soft Rock Slope with Fault in Surface Mine[J].Journal of Safety and Environment,2018,18(2):457-461.
[14]贺小黑,谭建民,裴来政.断层对地质灾害的影响:以安化地区为例[J].中国地质灾害与防治学报,2017,28(3):150-155.
HE Xiao-hei,TAN Jian-min,PEI Lai-zheng.Influence of Faults on Geohazards:Take Anhua County as an Example[J].The Chinese Journal of Geological Hazard and Control,2017,28(3):150-155.
[15]EHTESHAMI-MOINABADI M.Properties of Fault Zones and Their Influences on Rainfall-induced Landslides,Examples from Alborz and Zagros Ranges[J].Environmental Earth Sciences,2022,81(5):168.
[16]LI Y,YU L,SONG W D,et al.Three-dimensional Analysis of Complex Rock Slope Stability Affected by Fault and Weak Layer Based on FESRM[J].Advances in Civil Engineering,2019,2019:6380815.
[17]CHEN T,DENG J H,SITAR N,et al.Stability Investigation and Stabilization of a Heavily Fractured and Loosened Rock Slope During Construction of a Strategic Hydropower Station in China[J].Engineering Geology,2017,221:70-81.
[18]SONG S W,FENG X M,LIAO C G,et al.Measures for Controlling Large Deformations of Underground Caverns Under High In-situ Stress Condition:A Case Study of Jinping I hydropower Station[J].Journal of Rock Mechanics and Geotechnical Engineering,2016,8(5):605-618.
[19]刘宇东.变质岩复杂变形体稳定性分析与支挡设计方案优化[D].西安:长安大学,2014.
LIU Yu-dong.Stability Analysis for Metamorphic Complex Deformation Slope and Supporting Design Optimization[D].Xi'an:Chang'an University,2014.
[20]GB/T 38509—2020,滑坡防治设计规范[S].
GB/T 38509—2020,Code for the Design of Landslide Stabilization[S].
[21]GB 50330—2013,建筑边坡工程技术规范[S].
GB 50330—2013,Technical Code for Building Slope Engineering[S].
[22]DING Q R,GUO C Q,FAN X A,et al.Multi-source Monitoring Data Helps Revealing and Quantifying the Excavation-induced Deterioration of Rock Mass[J].Engineering Geology,2023,325:107281.
[23]马淑芝,刘小浪,席人双,等.开挖对顺向岩质高边坡稳定性影响及锚索加固效果分析[J].地球科学与环境学报,2018,40(5):637-644.
MA Shu-zhi,LIU Xiao-lang,XI Ren-shuang,et al.Analysis of the Influence of Excavation on Stability of High Lithological Bedding Slope and the Reinforcement Effect of Anchor Cable[J].Journal of Earth Sciences and Environment,2018,40(5):637-644.
[24]ZHANG B C,TANG H M,FANG K,et al.Experimental Study on Deformation and Failure Characteristics of Interbedded Anti-inclined Rock Slopes Induced by Rainfall[J].Rock Mechanics and Rock Engineering,2024,57(4):2933-2960.
[25]CHENG Z G,CHEN X X,ZHANG Y Y,et al.Spatio-temporal Evolution Characteristics of Precipitation in the North and South of Qinba Mountain Area in Recent 43 Years[J].Arabian Journal of Geosciences,2020,13(17):299-306.
[26]雷杨娜,李 明,程 路.陕西省降雨和风蚀气候侵蚀力时空分布特征[J].水土保持研究,2023,30(3):47-54,61.
LEI Yang-na,LI Ming,CHENG Lu.Spatio-temporal Characteristics of Rainfall Erosivity and Wind Erosion Climatic Erosivity in Shaanxi Province[J].Research of Soil and Water Conservation,2023,30(3):47-54,61.
[27]钟 凯,谭晓慧,牛漫兰,等.基于降雨强度-历时评价边坡稳定性:以安徽省3个边坡为例[J].地球科学与环境学报,2023,45(6):1380-1388.
ZHONG Kai,TAN Xiao-hui,NIU Man-lan,et al.Evaluation of Slope Stability Based on Rainfall Intensity-duration:Taking Three Slopes in Anhui Province,China as Examples[J].Journal of Earth Sciences and Environment,2023,45(6):1380-1388.
[28]张梦涵,魏 进,卞海丁.基于机器学习的边坡稳定性分析方法:以国内618个边坡为例[J].地球科学与环境学报,2022,44(6):1083-1095.
ZHANG Meng-han,WEI Jin,BIAN Hai-ding.Slope Stability Analysis Method Based on Machine Learning:Taking 618 Slopes in China as Examples[J].Journal of Earth Sciences and Environment,2022,44(6):1083-1095.
[29]熊 炜,范 文,邓龙胜,等.基于有限元修正节理岩质边坡稳定性计算的解析解[J].地球科学与环境学报,2011,33(3):306-310.
XIONG Wei,FAN Wen,DENG Long-sheng,et al.Amendment of Analytical Solution on Stability of Joint Rock Slope Based on Finite Element Method[J].Journal of Earth Sciences and Environment,2011,33(3):306-310.
[30]彭建兵,兰恒星.略论生态地质学与生态地质环境系统[J].地球科学与环境学报,2022,44(6):877-893.
PENG Jian-bing,LAN Heng-xing.Ecological Geology and Eco-geological Environment System[J].Journal of Earth Sciences and Environment,2022,44(6):877-893.

相似文献/References:

[1]刘震,姚星,胡晓丹,等.鄂尔多斯盆地中生界断层的发现及其对成藏的意义[J].地球科学与环境学报,2013,35(02):56.
　LIU Zhen,YAO Xing,HU Xiao-dan,et al.Discovery of the Mesozoic Fault and Its Implication on the Hydrocarbon Accumulation in Ordos Basin[J].Journal of Earth Sciences and Environment,2013,35(03):56.
[2]梁永兴,曾溅辉,杨智峰,等.南海北部神狐海域输导体系特征及其对天然气水合物成藏的影响[J].地球科学与环境学报,2013,35(04):30.
　LIANG Yong-xing,ZENG Jian-hui,YANG Zhi-feng,et al.Characteristics of Passway Systems and Their Influence on Gas Hydrate Accumulation in Shenhu Area of Northern South China Sea[J].Journal of Earth Sciences and Environment,2013,35(03):30.
[3]徐春强,王德英,张新涛,等.渤中凹陷西斜坡新近系油气成藏主控因素及有利勘探方向[J].地球科学与环境学报,2016,38(02):217.
　XU Chun-qiang,WANG De-ying,ZHANG Xin-tao,et al.Main Controlling Factors of Hydrocarbon Accumulation and Prediction of Favorable Exploration Zone of Neogene in the Western Slope of Bozhong Sag[J].Journal of Earth Sciences and Environment,2016,38(03):217.
[4]付广,胡欣蕾.利用断层岩泥质含量判断断层垂向封闭性的方法及其应用[J].地球科学与环境学报,2016,38(05):660.
　FU Guang,HU Xin-lei.Method of Fault Vertical Sealing Ability Judged by the Mudstone Content of Fault-rock and Its Application[J].Journal of Earth Sciences and Environment,2016,38(03):660.
[5]高先志,李浩,刘启东.高邮凹陷断层控油气作用的多样性[J].地球科学与环境学报,2012,34(01):20.
　GAO Xian-zhi,LI Hao,LIU Qi-dong.Various effects of faults on generation, migration and accumulation of oil/gas in Gaoyou Sag[J].Journal of Earth Sciences and Environment,2012,34(03):20.
[6]宗奕,梁建设,郭刚.珠江口盆地番禺低隆起文昌组断裂活动性特征及其对沉积的影响[J].地球科学与环境学报,2012,34(04):30.
　ZONG Yi,LIANG Jian-she,GUO Gang.Characteristic of Fault Activity in Wenchang Formation of Panyu Low Uplift,Pearl River Mouth Basin and Its Influence on Sedimentation[J].Journal of Earth Sciences and Environment,2012,34(03):30.
[7]张秀霞,张永志.遗传算法反演龙门山断裂带断层三维滑动参数研究[J].地球科学与环境学报,2011,33(02):217.
　ZHANG Xiu-xia,ZHANG Yong-zhi.Inversion of Three-dimensional Slip Parameters of Fault in Longmenshan Fault Zone Using Genetic Algorithm[J].Journal of Earth Sciences and Environment,2011,33(03):217.
[8]陈金宝,张庆龙,于兰兄,等.断层对辽河盆地杜229断块 超稠油成藏与生产的影响[J].地球科学与环境学报,2006,28(03):48.
　CHEN Jin-bao,ZHANG Qing-long,YU Lan-xiong,et al.Effect of Fault on Forming and Production of Heavy Oil Reservoir in Du 229 Faulted Block，Liaohe Basin[J].Journal of Earth Sciences and Environment,2006,28(03):48.
[9]刘卫彬,张世奇,徐兴友,等.断层相关裂缝的发育模式及分布预测——以东濮凹陷沙三段为例[J].地球科学与环境学报,2018,40(03):308.
　LIU Wei-bin,ZHANG Shi-qi,XU Xing-you,et al.Development Model and Prediction of Fault-related Fractures—A Case Study of the Third Member of Shahejie Formation in Dongpu Depression[J].Journal of Earth Sciences and Environment,2018,40(03):308.
[10]杨海盟,邹娟,马士磊,等.苏北盆地高邮凹陷汉留断裂带应力场数值模拟及断层成因分析[J].地球科学与环境学报,2018,40(06):746.
　YANG Hai-meng,ZOU Juan,MA Shi-lei,et al.Numerical Simulation of Stress Field and Fault Genesis Analysis of Hanliu Fault Zone in Gaoyou Sag of Subei Basin, China[J].Journal of Earth Sciences and Environment,2018,40(03):746.

备注/Memo

备注/Memo:

收稿日期:2024-02-28; 修回日期:2024-04-10
基金项目:国家自然科学基金项目(42077265,41927806)
*通信作者:石玉玲(1972-),女,河北曲周人,副教授,工学博士,E-mail:dcdgx15@chd.edu.cn。

常用功能

更新日期/Last Update: 2024-05-30