Mechanism and stability analysis of typical landslide in pecan planting area of Ningguo City in Anhui Province: A case study of Shilingcun landslide
DENG Jialiang1, HUANG Huang2, WANG Yao1, LI Yongming2, WU Hao1, HUANG Meng1
1. Anhui Institute of Geological Survey, Anhui Hefei 230001, China; 2. 311 Geological Team of Anhui Provincial Bureau of Geology and Mineral Exploration, Anhui Anqing 246000, China
Abstract：Ningguo pecan planting area is one of the most vulnerable areas of landslide disaster in Anhui Province with complex environmental and geological conditions, active human activities and abundant rainfall. The landslide in Shilingun in the eastern part of the planting area was selected as the research object, and the remote sensing, topographic survey and geological exploration were adopted to investigate the deformation characteristics, formation conditions, failure mechanism and stability of the landslide in detail, and prevention and control proposals were put forword. The results show that Shilingcun landslide is a small composite soil landslide controlled by the interface of foundation and cover. The stability coefficient is 0.854 3 (stability coefficient <1, unstable) under condition II (dead weight + continuous heavy rain), and it is in a creep state with greater possibility of resurrection. The main controlling factors are weak rock and soil structure and suitable topographic and geomorphic conditions, and the induced factors are heavy rainfall and human engineering activities. It is suggested that the natural slopes in the planting area should be treated with engineering method, the picking pecans method should be changed (such as using low-altitude hanging net picking) to restore vegetation and reduce soil erosion. The research results could provide important reference for the early identification, prevention and control of landslide disasters in planting areas and reduce the loss of people's lives and property.
邓佳良, 黄黄, 王耀, 李永明, 吴昊, 黄蒙. 安徽省宁国市山核桃种植区典型滑坡机制与稳定性分析——以石岭村滑坡为例[J]. 中国地质调查, 2024, 11(1): 93-104.
DENG Jialiang, HUANG Huang, WANG Yao, LI Yongming, WU Hao, HUANG Meng. Mechanism and stability analysis of typical landslide in pecan planting area of Ningguo City in Anhui Province: A case study of Shilingcun landslide. , 2024, 11(1): 93-104.
[1] 沈艳杰. 安徽省地质灾害分类及统计分析[J].地质科技情报,2000,19(2):83-86. Shen Y J.Classification and statistical analyses of geological hazards in Anhui[J].Geological Science and Technology Information,2000,19(2):83-86. [2] 王国强,关峰,吴道祥,等.宁国市中溪滑坡成因及稳定性分析[J].煤田地质与勘探,2004,32(5):43-46. Wang G Q,Guan F,Wu D X,et al.Stability and forming mechanism of the Zhongxi landslide in Ningguo city[J].Coal Geology & Exploration,2004,32(5):43-46. [3] 王国强,徐威,吴道祥,等.安徽省环境地质特征与地质灾害[J].岩石力学与工程学报,2004,23(1):164-169. Wang G Q,Xu W,Wu D X,et al.Characteristics of environmental geology and geological disasters of Anhui province[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(1):164-169. [4] 郑建中,邹正明.皖南山区环境地质特征与滑坡地质灾害防治[J].合肥工业大学学报(自然科学版),2006,29(1):102-105. Zheng J Z,Zou Z M.Environmental geological characteristics of the mountain area of southern Anhui Province and treatment of geological disasters due to landslide[J].Journal of Hefei University of Technology,2006,29(1):102-105. [5] 孙健,陶慧,杨世伟,等.皖南山区地质灾害发育规律与防治对策[J].水文地质工程地质,2011,38(5):98-101. Sun J,Tao H,Yang S W,et al.Development characteristics and prevention measures of geological hazards in mountain area of southern Anhui province[J].Hydrogeology & Engineering Geology,2011,38(5):98-101. [6] 吴泊人,游昆骏,潘国林,等.皖南山区阳台古滑坡形成机制研究[J].工程地质学报,2013,21(2):304-310. Wu B R,You K J,Pan G L,et al.Failure mechanism of Yangtai landslide in mountain area of South Anhui province[J].Journal of Engineering Geology,2013,21(2):304-310. [7] 潘国林,洪天求,林桂香.皖南山区滑坡分类及形成机制研究[J].合肥工业大学学报(自然科学版),2016,39(4):543-547. Pan G L,Hong T Q,Lin G X.Research on classifications and formation mechanism of landslides in mountainous area of southern Anhui[J].Journal of Hefei University of Technology,2016,39(4):543-547. [8] 王前,黄宗薇,李学锋,等.安徽省宁国市1∶5万地质灾害调查报告[R].合肥:安徽金联地矿科技有限公司,2015. Wang Q,Huang Z W,Li X F,et al.Geological Disaster Survey Report of 1∶50,000 in Ningguo City,Anhui Province[R].Hefei:Anhui Jinlian Geology and Mining Technology Co.,LTD.,2015. [9] 黄黄,李永明,郭灿平,等.宁国市地质灾害风险调查评价(1∶50 000)成果报告[R].安庆:安徽省地质矿产勘查局311地质队,2022. Huang H,Li Y M,Guo C P,et al.Geological Disaster Risk Investigation and Evaluation of Ningguo City (1∶50 000) Result Report[R].Anqing:311 Geological Team,Bureau of Geology and Mineral Exploration,Anhui Province,2022. [10] 徐威. 宁国市边山滑坡的成因机制与稳定性分析[D].合肥:合肥工业大学,2005. Xu W.Mechanism of Bianshan Landslide Formation and Analysis of Its Stability in Ning Guo[D].Hefei:Hefei University of Technology,2005. [11] 阮林森. 安徽省宁国市地质灾害易发性区划与评价[D].武汉:中国地质大学(武汉),2009. Ruan L S.Zoning and Evaluation of Geological Hazard Susceptibility in Ningguo City,Anhui Province[D].Wuhan:China University of Geosciences (Wuhan),2009. [12] 徐静. 皖南山区斜坡碎石土工程地质特性研究[D].成都:成都理工大学,2013. Xu J.Study on Engineering-Geological Characteristics of Gravel-Soilslopes in Southern Mountainous Area of Anhui Province[D].Chengdu:Chengdu University of Technology,2013. [13] 黄黄,郭灿平.仙霞镇石岭村大坞组于家善屋后滑坡勘查报告[R].安庆:安徽省地质矿产勘查局311地质队,2022. Huang H,Guo C P.Investigation Report of Yu Jiashan Wushou Landslide of Dawu Formation,Shiling Village,Xianxia Town[R].Anqing:311 Geological Team,Bureau of Geology and Mineral Exploration,Anhui Province,2022. [14] 阮林森,向树元,常丹燕,等.安徽宁国市地质灾害区划及评析[J].安徽农业科学,2008,36(19):8218-8220. Ruan L S,Xiang S Y,Chang D Y,et al.Division and analysis on geological hazards in Ningguo County of Anhui[J].Journal of Anhui Agricultural Sciences,2008,36(19):8218-8220. [15] 袁康. 台风暴雨诱发滑坡的分布规律及危险性评价——以安徽省宁国市为例[D].合肥:安徽理工大学,2021. Yuan K.Distribution Law and Risk Assessment of Landslide Triggered by Typhoon and Rainstorm:Taking Ningguo City,Anhui Province as An Example[D].Hefei:Anhui University of Science & Technology,2021. [16] 袁康,崔玉龙,胡俊宏,等.2019年“利奇马”台风暴雨滑坡分布分析——以安徽省宁国市为例[J].陕西理工大学学报(自然科学版),2021,37(3):74-81. Yuan K,Cui Y L,Hu J H,et al.Analysis of the distribution of landslides triggered by heavy rains caused by typhoon “Lekima” in 2019:Taking Ningguo city,Anhui province as an example[J].Journal of Shaanxi University of Technology (Natural Science Edition),2021,37(3):74-81. [17] 赵金彪,袁康.基于层次分析模型的宁国市降雨滑坡易发性评价[J].山西建筑,2022,48(15):94-96. Zhao J B,Yuan K.Susceptibility of rainfall landslide in Ningguo City based on Analytic Hierarchy Process[J].Shanxi Architecture,2022,48(15):94-96. [18] 安徽省地质矿产勘查局.安徽省区域地质志[M].北京:地质出版社,1987:105-230. Anhui Provincial Bureau of Geology and Mineral Exploration.Regional Geology of Anhui Province[M].Beijing:Geological Publishing House,1987:105-230. [19] 安徽省地质调查院.安徽省区域地质志[M].合肥:安徽省地质调查院,2015:200-220. Anhui Institute of Geological Survey.Regional Geology of Anhui Province[M].Hefei:Anhui Institute of Geological Survey,2015:200-220. [20] 周存亭,杜建国.安徽省大地构造相与成矿地质背景研究[M].武汉:中国地质大学出版社,2017:55-200. Zhou C T,Du J G.Study on Tectonic Facies and Metallogenic Geological Setting in Anhui Province[M].Wuhan:China University of Geosciences Press,2017:55-200. [21] 张建芳,龚瑞君,汪隆武,等.浙皖晚中生代仙霞岩体锆石U-Pb年代学、地球化学及成岩地质意义[J].地质学报,2017,91(1):198-212. Zhang J F,Gong R J,Wang L W,et al.Zircon U-Pb Geochronology and geochemistry of the Late Mesozoic Xianxia rock in Zhejiang and Anhui Provinces and Diagenetic geological significance[J].Acta Geologica Sinica,2017,91(1):198-212. [22] 付翔,张达玉,蒋华,等.江南造山带仙霞复式岩体的成因研究[J].大地构造与成矿学,2020,44(3):543-560. Fu X,Zhang D Y,Jiang H,et al.Genesis of the Xianxia Batholith in the Jiangnan Orogenic belt and its geological significance[J].Geotectonica et Metallogenia,2020,44(3):543-560. [23] 张岩岩,文海家,麻超超,等.基于多源数据的蔡家坝特大型滑坡成因机制研究及稳定性评价[J].岩石力学与工程学报,2018,37(9):2048-2063. Zhang Y Y,Wen H J,Ma C C,et al.Failure mechanism and stability analysis of huge landslide of Caijiaba based on multi-source data[J].Chinese Journal of Rock Mechanics and Engineering,2018,37(9):2048-2063. [24] 朱彦鹏,杜一博,杨校辉,等.甘肃舟曲河那滑坡变形特征及孕灾机理[J].科学技术与工程,2022,22(25):10884-10895. Zhu Y P,Du Y B,Yang X H,et al.Disaster mechanism and stability evaluation of Hena landslide in Zhouqu,Gansu Province[J].Science Technology and Engineering,2022,22(25):10884-10895. [25] 张倬元,王士天,王兰生,等.工程地质分析原理(3版)[M].北京:地质出版社,2009:50-200. Zhang Z Y,Wang S T,Wang L S,et al.Engineering Geological Analysis Principle(3rd ed)[M].Beijing:Geological Publishing House,2009:50-200. [26] 杨为民,黄晓,张春山,等.白龙江流域坪定—化马断裂带滑坡特征及其形成演化[J].吉林大学学报:地球科学版,2014,44(2):574-583. Yang W M,Huang X,Zhang C S,et al.Deformation behavior of landslides and their formation mechanism along Pingding-Huama active fault in Bailongjiang River Region[J].Journal of Jilin University (Earth Science Edition),2014,44(2):574-583. [27] 杨龙伟,魏云杰,朱赛楠,等.新疆伊宁县克孜勒赛滑坡成灾机理和动力学特征[J].中国地质灾害与防治学报,2018,29(3):18-24. Yang L W,Wei Y J,Zhu S N,et al.Formation mechanism of the Kezilesai Landslide in Yining Country,Xinjiang and its dynamic characteristics[J].The Chinese Journal of Geological Hazard and Control,2018,29(3):18-24. [28] 黄达,匡希彬,罗世林.三峡库区藕塘滑坡变形特点及复活机制研究[J].水文地质工程地质,2019,46(5):127-135. Huang D,Kuang X B,Luo S L.A study of the deformation characteristics and reactivation mechanism of the Outang landslide near the Three Gorges Reservoir of China[J].Hydrogeology & Engineering Geology,2019,46(5):127-135. [29] Martel S J.Mechanics of landslide initiation as a shear fracture phenomenon[J].Marine Geology,2004,203(3-4):319-339. [30] 张卫雄,丁保艳,张文纶,等.舟曲江顶崖大型滑坡成因及破坏机制分析[J].防灾减灾工程学报,2022,42(4):714-722. Zhang W X,Ding B Y,Zhang W L,et al.Analysis on the cause and failure mechanism of the Jiangdingya large landslide in Zhouqu,Gansu Province[J].Journal of Disaster Prevention and Mitigation Engineering,2022,42(4):714-722. [31] Bishop A W.The use of the slip circle in the stability analysis of slopes[J].Géotechnique,1955,5(1):7-17. [32] 陈仲颐,周景星,王洪瑾.土力学[M].北京:清华大学出版社,1994:88-125. Chen Z Y,Zhou J X,Wang H J.Soil Mechanics[M].Beijing:Tsinghua University Press,1994:88-125. [33] 戴自航,沈蒲生.土坡稳定分析简化Bishop法的数值解[J].岩土力学,2002,23(6):760-764. Dai Z H,Shen P S.Numerical solution of simplified Bishop method for stability analysis of soil slopes[J].Rock and Soil Mechanics,2002,23(6):760-764. [34] 王根龙,伍法权,门玉明.基于土质边坡塑性极限分析条分法的可靠度计算方法研究[J].工程地质学报,2006,14(6):835-840. Wang G L,Wu F Q,Men Y M.Analysis of reliability index calculation on the basis of plasticity limit analysis & Slice method of soil slope[J].Journal of Engineering Geology,2006,14(6):835-840. [35] 彭振斌,李俊,彭文祥.基于Bishop条分法的边坡可靠度应用研究[J].中南大学学报:自然科学版,2010,41(2):668-672. Peng Z B,Li J,Peng W X.Application analysis of slope reliability based on Bishop analytical method[J].Journal of Central South University:Science and Technology,2010,41(2):668-672. [36] 蔡征龙,徐卫亚,石崇,等.基于简化Bishop积分法降雨滑坡失效概率模型研究[J].四川大学学报:工程科学版,2016,48(3):64-70. Cai Z L,Xu W Y,Shi C,et al.Study on the failure probability model of landslide with rainfall infiltration based on simplified bishop integral method[J].Journal of Sichuan University:Engineering Science Edition,2016,48(3):64-70. [37] 刘茂,杨红娟,钱江澎.简化Bishop法的剩余下滑推力计算方法研究[J].工程地质学报,2019,27(5):1056-1062. Liu M,Yang H J,Qian J P.Calculation method of landslide residual sliding force using simplified bishop method[J].Journal of Engineering Geology,2019,27(5):1056-1062. [38] 田尤,陈龙,黄海,等.西藏澜沧江流域察雅县城滑坡群成因及现状稳定性[J].地质通报,2021,40(12):2034-2042. Tian Y,Chen L,Huang H,et al.Origin and stability of landslides in Chaya County,Lancang River Basin,Tibet[J].Geological Bulletin of China,2021,40(12):2034-2042. [39] 张嘎,张建民.基于瑞典条分法的应变软化边坡稳定性评价方法[J].岩土力学,2007,28(1):12-16. Zhang G,Zhang J M.Stability evaluation of strain-softening slope based on Swedish slice method[J].Rock and Soil Mechanics,2007,28(1):12-16. [40] 杨晓松,高涛.瑞典条分法与简化毕肖普法在海堤抗滑稳定分析中的比较[J].水运工程,2017(2):27-32. Yang X S,Gao T.Comparison of Sweden slice method and simplified Bishop method in seawall stability analysis[J].Port & Waterway Engineering,2017(2):27-32. [41] 郭海强,王占盛,李安洪,等.基于瑞典条分法的铁路边坡极限状态设计研究[J].铁道标准设计,2021,65(1):23-28. Guo H Q,Wang Z S,Li A H,et al.Study on limit state design of railway slope based on Swedish slice method[J].Railway Standard Design,2021,65(1):23-28. [42] 王春燕,洪宝宁,单浩,等.斜坡软弱路基稳定性分析的修正瑞典条分法[J].防灾减灾工程学报,2021,41(6):1358-1365. Wang C Y,Hong B N,Shan H,et al.Modified Swedish slice method for stability analysis of weak subgrade on slope[J].Journal of Disaster Prevention and Mitigation Engineering,2021,41(6):1358-1365. [43] 王万禄,王黎蝶,夏钢源,等.基于瑞典条分法的某露天铁矿采场边坡稳定性分析[J].现代矿业,2022,38(9):215-218,227. Wang W L,Wang L D,Xia G Y,et al.Slope stability analysis of an open-pit iron ore mining based on Swedish stripe method[J].Modern Mining,2022,38(9):215-218,227. [44] 张均锋. 三维简化Janbu法分析边坡稳定性的扩展[J].岩石力学与工程学报,2004,23(17):2876-2881. Zhang J F.Extension of three-dimensional Simplified Janbu's method for slope stability analysis[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(17):2876-2881. [45] 李亮,迟世春,郑榕明.基于椭球滑动体假定和三维简化JANBU法的边坡稳定分析[J].岩土力学,2008,29(9):2439-2445. Li L,Chi S C,Zheng Y M.Three-dimensional slope stability analysis based on ellipsoidal sliding body and simplified JANBU method[J].Rock and Soil Mechanics,2008,29(9):2439-2445. [46] 邓东平,李亮,赵炼恒.基于Janbu法的边坡整体稳定性滑动面搜索新方法[J].岩土力学,2011,32(3):891-898. Deng D P,Li L,Zhao L H.A new method of sliding surface searching for general stability of slope based on Janbu method[J].Rock and Soil Mechanics,2011,32(3):891-898. [47] Morgenstern N R,Price V E.The analysis of the stability of general slip surfaces[J].Géotechnique,1965,15(1):79-93. [48] Spencer E.A method of analysis of the stability of embankments assuming parallel inter-slice forces[J].Géotechnique,1967,17(1):11-26. [49] 中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.GB 18306—2015 中国地震动参数区划图[S].北京:中国标准出版社,2016:76. General Administration of Quality Supervision,Inspection and Quarantine of the People's Republic of China,Standardization Administration of the People's Republic of China.GB 18306—2015 Seismic Ground Motion Parameters Zonation Map of China[S].Beijing:Standards Press of China,2016:76. [50] 中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.GB/T 32864—2016 滑坡防治工程勘查规范[S].北京:中国标准出版社,2017:13-15. General Administration of Quality Supervision,Inspection and Quarantine of the People's Republic of China,Standardization Administration of the People's Republic of China.GB/T 32864—2016 Code for Geological Investigation of Landslide Prevention[S].Beijing:Standards Press of China,2017:13-15.
2024, Vol. 11 
