水位骤降影响下岸坡稳定性简化分析

贺林林; 周莉; 梁越

doi:10.12170/20200524001

水位骤降影响下岸坡稳定性简化分析

doi: 10.12170/20200524001

贺林林^{1, 2, 3,},
周莉^{2, 3},
梁越^{1, 2, 3}

1.
重庆交通大学国家内河航道整治工程技术研究中心，重庆 400074
2.
重庆交通大学水利水运工程教育部重点实验室，重庆 400074
3.
重庆交通大学河海学院，重庆 400074

基金项目: 重庆市博士后科研项目特别资助项目（Xm2017188）；自然资源部中国地质调查局公益性项目（DD20160291）；重庆市基础与前沿研究科学基金项目（cstc2018jcyjAX0559）；研究生科研创新项目（2020S0028）

详细信息

作者简介:
贺林林（1983—），女，黑龙江齐齐哈尔人，副教授，博士，主要从事港口海岸及近海工程结构设计理论及方法、土与结构相互作用方向的研究。E-mail：helinl@126.com

中图分类号: TU431

Simplified analysis method for the bank slope stability with the influence of water level plummet

HE Linlin^{1, 2, 3
,},
ZHOU Li^{2, 3},
LIANG Yue^{1, 2, 3}

1.
National Engineering Research Center for Inland River Channel Regulation, Chongqing Jiaotong University, Chongqing 400074, China
2.
Key Laboratory of Water Conservancy and Water Transportation Engineering of Ministry of Education, Chongqing Jiaotong University, Chongqing 400074, China
3.
Hohai College, Chongqing Jiaotong University, Chongqing 400074, China

摘要: 水位骤降是影响岸坡稳定的主要外在因素，但现有计算方法均需通过渗透力或孔隙水压力计算或者渗流场与应力场耦合分析来考虑水位下降对岸坡产生的渗流作用，计算过程较复杂，不便于工程设计人员采用。为了便于分析水位骤降对岸坡稳定性的影响，通过对岸坡任一点考虑渗透力与否的应力状态进行对比分析，得到将渗透力对岸坡稳定性影响简化为抗剪强度参数黏聚力降低的这一等效关系，并将此等效关系与强度折减法相结合，建立岸坡稳定性简化计算模型，提出了水位骤降影响下岸坡稳定性简化分析方法，并将该简化分析方法与已有分析方法进行对比分析。结果表明：该简化分析方法结果与岸坡全局临界滑移场（GCSF）方法、Geostudio的Slope/W模块方法及传统极限平衡分析方法计算均质岸坡稳定性所得安全系数相差分别为2.6%、3.5%和3.5%。可见，所建立的简化方法与已有分析方法的结果吻合较好；进一步采用该简化方法与全局临界滑移场（GCSF）方法计算存在软弱夹层的非均质岸坡，所得安全系数相差3.1%。这表明该简化方法计算水位骤降影响下均质、非均质岸坡稳定性均具有较好的可靠性和适用性。
- 水位骤降 /
- 应力状态 /
- 等效关系 /
- 强度折减法 /
- 简化分析方法
Abstract: Water level plummet is one of the main external factors affecting the stability of bank slope, however, the existing calculation methods need to consider the seepage effect of water level drop on bank slope through the calculation of seepage force or pore water pressure or the coupling analysis of seepage field and stress field, which are complicated and inconvenient for engineering designers to adopt. In order to analyze the influence of water level plummet on the stability of bank slope conveniently, the stress state of one point in the bank slope with and without considering seepage force was analyzed, and an equivalent relationship that the influence of seepage force on bank slope stability could be seen as the decrease of the parameter of cohesion c was obtained. Combining this equivalent relationship with the strength reduction method, a simplified calculation model of bank slope stability was established, and then a simplified stability analysis method for bank slope stability under the influence of water level plummet was proposed. The homogeneous bank slope stability analyses were carried out by the simplified analysis method in this paper, the bank slope globally critical slip field (GCSF) method, Geostudio's Slope/W module method and the traditional ultimate equilibrium methods respectively, and the results show that the safe factors calculated by the above-mentioned methods are in good agreement, with the differences of 2.6%, 3.5% and 3.5% respectively. Then the heterogeneous bank slope stability analyses were carried out by the simplified analysis method in this paper and the slope globally critical slip field (GCSF) method respectively. The results show that the safe factors calculated by the two methods are also in good agreement, with the difference of 3.1%. It is indicated that the simplified calculation method proposed in this paper for homogeneous and heterogeneous bank slope stability analysis is reliable and feasible.
- water level plummet /
- stress state /
- equivalent relationship /
- strength reduction method /
- simplified calculation method
图 1 岸坡任一点应力状态

Figure 1. Stress state at any point on bank slope

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图 2 岸坡任一点应力分量

Figure 2. Stress component at any point on bank slope

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图 3 应力圆与强度曲线

Figure 3. Stress circle and intensity curve

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图 4 均质岸坡剖面(单位：m)

Figure 4. Homogenous bank slope profile (unit：m)

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图 5 岸坡塑性应变云图

Figure 5. Bank slope plastic strain map

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图 6 水平方向位移云图

Figure 6. Horizontal displacement cloud map

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图 7 非均质岸坡剖面(单位：m)

Figure 7. Heterogeneous bank slope profile (unit：m)

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图 8 岸坡塑性应变云图

Figure 8. Bank slope plastic strain diagram

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图 9 水平方向位移云图

Figure 9. Horizontal displacement cloud map

下载: 全尺寸图片幻灯片

表 1 岸坡安全系数

Table 1. Safety factors of bank slope

计算方法瑞典圆弧法 Bishop法 Janbu法不平衡推力法 GCSF Slope/W 本文简化方法

安全系数 1.19 1.17 1.06 1.12 1.17 1.18 1.14

下载: 导出CSV

[1]	郑颖人, 时卫民, 孔位学. 库水位下降时渗透力及地下水浸润线的计算[J]. 岩石力学与工程学报,2004,23(18):3203-3210. (ZHENG Yingren, SHI Weimin, KONG Weixue. Calculation of seepage forces and phreatic surface under drawdown conditions[J]. Chinese Journal of Rock Mechanics and Engineering, 2004, 23(18): 3203-3210. (in Chinese)
[2]	刘新喜, 夏元友, 练操, 等. 库水位骤降时的滑坡稳定性评价方法研究[J]. 岩土力学,2005,26(9):1427-1431, 1436. (LIU Xinxi, XIA Yuanyou, LIAN Cao, et al. Research on method of landslide stability valuation during sudden drawdown of reservoir level[J]. Rock and Soil Mechanics, 2005, 26(9): 1427-1431, 1436. (in Chinese)
[3]	邓华锋, 李建林. 库水位变化对库岸边坡变形稳定的影响机理研究[J]. 水利学报,2014,45(增刊2):45-51. (DENG Huafeng, LI Jianlin. Research on the influence mechanism of water level fluctuation on the bank landslide deformation and stability[J]. Journal of Hydraulic Engineering, 2014, 45(Suppl2): 45-51. (in Chinese)
[4]	廖红建, 盛谦, 高石夯, 等. 库水位下降对滑坡体稳定性的影响[J]. 岩石力学与工程学报,2005,24(19):3454-3458. (LIAO Hongjian, SHENG Qian, GAO Shihang, et al. Influence of drawdown of reservoir water level on landslide stability[J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(19): 3454-3458. (in Chinese)
[5]	卢玉林, 陈晓冉. 地下水渗流作用下土坡稳定性的简化Bishop法解[J]. 应用力学学报,2018,35(3):524-529. (LU Yulin, CHEN Xiaoran. Solution for stability of soil slopes subjected to seepage of groundwater via simplified Bishop method[J]. Chinese Journal of Applied Mechanics, 2018, 35(3): 524-529. (in Chinese)
[6]	杨育文, 周志立, 蒋涛, 等. 渗流作用下边坡自稳临界高度计算[J]. 长江科学院院报,2013,30(10):54-57. (YANG Yuwen, ZHOU Zhili, JIANG Tao, et al. Determining the self-stability critical height of slope with steady seepage[J]. Journal of Yangtze River Scientific Research Institute, 2013, 30(10): 54-57. (in Chinese)
[7]	SUN G H, LIN S, JIANG W, et al. A simplified solution for calculating the phreatic line and slope stability during a sudden drawdown of the reservoir water level[J]. Geofluids, 2018, 2018: 1-14.
[8]	时卫民, 郑颖人. 库水位下降情况下滑坡的稳定性分析[J]. 水利学报,2004(3):76-80. (SHI Weimin, ZHENG Yingren. Analysis on stability of landslide during reservoir drawdown[J]. Journal of Hydraulic Engineering, 2004(3): 76-80. (in Chinese)
[9]	SUN G H, YANG Y T, CHENG S G, et al. Phreatic line calculation and stability analysis of slopes under the combined effect of reservoir water level fluctuations and rainfall[J]. Canadian Geotechnical Journal, 2017, 54(5): 631-645. doi: 10.1139/cgj-2016-0315
[10]	谢罗峰, 段祥宝. 非稳定渗流作用下边坡稳定性试验研究[J]. 长江科学院院报,2009,26(10):31-34. (XIE Luofeng, DUAN Xiangbao. Experiment study on slope stability under unsteady seepage[J]. Journal of Yangtze River Scientific Research Institute, 2009, 26(10): 31-34. (in Chinese)
[11]	蒋中明, 龙芳, 熊小虎, 等. 边坡稳定性分析中的渗透力计算方法考证[J]. 岩土力学,2015,36(9):2478-2486, 2493. (JIANG Zhongming, LONG Fang, XIONG Xiaohu, et al. Study of calculation methods of acting force of seepage in slope stability analysis[J]. Rock and Soil Mechanics, 2015, 36(9): 2478-2486, 2493. (in Chinese)
[12]	毛昶熙, 李吉庆, 段祥宝. 渗流作用下土坡圆弧滑动有限元计算[J]. 岩土工程学报,2001,23(6):746-752. (MAO Changxi, LI Jiqing, DUAN Xiangbao. Finite element calculation on circular slip of earth slope under seepage action[J]. Chinese Journal of Geotechnical Engineering, 2001, 23(6): 746-752. (in Chinese)
[13]	陈祖煜. 土质边坡稳定分析: 原理·方法·程序[M]. 北京: 中国水利水电出版社, 2003. CHEN Zuyu. Soil slope stability analysis: theory, methods and programs[M]. Beijing: China Water & Power Press, 2003. （in Chinese）
[14]	唐晓松, 郑颖人, 邬爱清, 等. 应用PLAXIS有限元程序进行渗流作用下的边坡稳定性分析[J]. 长江科学院院报,2006,23(4):13-16. (TANG Xiaosong, ZHENG Yingren, WU Aiqing, et al. Stability analysis of soil slope under seepage by PLAXIS finite element program[J]. Journal of Yangtze River Scientific Research Institute, 2006, 23(4): 13-16. (in Chinese)
[15]	李湛, 栾茂田, 刘占阁, 等. 渗流作用下边坡稳定性分析的强度折减弹塑性有限元法[J]. 水利学报,2006,37(5):554-559. (LI Zhan, LUAN Maotian, LIU Zhange, et al. Elasto-plastic FEM for embankment stability analysis under the condition of seepage based on the technique of shear strength reduction[J]. Journal of Hydraulic Engineering, 2006, 37(5): 554-559. (in Chinese)
[16]	贾苍琴, 黄茂松, 王贵和. 非饱和非稳定渗流作用下土坡稳定分析的强度折减有限元方法[J]. 岩石力学与工程学报,2007,26(6):1290-1296. (JIA Cangqin, HUANG Maosong, WANG Guihe. Strength reduction FEM in stability analysis of soil slopes subjected to transient unsaturated seepage[J]. Chinese Journal of Rock Mechanics and Engineering, 2007, 26(6): 1290-1296. (in Chinese)
[17]	年廷凯, 刘成, 万少石, 等. 水位下降条件下黏性土边坡稳定性的图表法[J]. 岩土力学,2012,33(2):569-576. (NIAN Tingkai, LIU Cheng, WAN Shaoshi, et al. Graphic method for stability of clay slopes during water level drawdown[J]. Rock and Soil Mechanics, 2012, 33(2): 569-576. (in Chinese)
[18]	刘才华, 陈从新, 冯夏庭. 库水位上升诱发边坡失稳机理研究[J]. 岩土力学,2005,26(5):769-773. (LIU Caihua, CHEN Congxin, FENG Xiating. Study on mechanism of slope instability due to reservoir water level rise[J]. Rock and Soil Mechanics, 2005, 26(5): 769-773. (in Chinese)
[19]	费康, 彭劼. ABAQUS岩土工程实例详解[M]. 北京: 人民邮电出版社, 2017. FEI Kang, PENG Jie. Detailed explanation of ABAQUS geotechnical engineering case[M]. Beijing: Posts & Telecom Press, 2017. （in Chinese）
[20]	陈育民, 徐鼎平. FLAC/FLAC3D基础与工程实例[M]. 2版. 北京: 中国水利水电出版社, 2013. CHEN Yumin, XU Dingping. FLAC/FLAC3D foundation and engineering example[M]. 2nd ed. Beijing: China Water & Power Press, 2013. （in Chinese）
[21]	蒋泽锋, 朱大勇, 沈银斌, 等. 非饱和-非稳定渗流条件下的边坡临界滑动场[J]. 岩土力学,2015,36(6):1815-1823. (JIANG Zefeng, ZHU Dayong, SHEN Yinbin, et al. Critical slip field of slope under the condition of transient unsaturated seepage[J]. Rock and Soil Mechanics, 2015, 36(6): 1815-1823. (in Chinese)

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计算方法	瑞典圆弧法	Bishop法	Janbu法	不平衡推力法	GCSF	Slope/W	本文简化方法
安全系数	1.19	1.17	1.06	1.12	1.17	1.18	1.14

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水位骤降影响下岸坡稳定性简化分析

doi: 10.12170/20200524001

作者简介: 贺林林（1983—），女，黑龙江齐齐哈尔人，副教授，博士，主要从事港口海岸及近海工程结构设计理论及方法、土与结构相互作用方向的研究。E-mail：helinl@126.com

Simplified analysis method for the bank slope stability with the influence of water level plummet

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作者简介:
贺林林（1983—），女，黑龙江齐齐哈尔人，副教授，博士，主要从事港口海岸及近海工程结构设计理论及方法、土与结构相互作用方向的研究。E-mail：helinl@126.com