含软弱夹层土坡稳定性分析研究
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摘要
运用有限元软件ABAQUS,采用有限元强度折减法对含软弱夹层土坡的稳定性进行了数值模拟。主要分析在坡高、坡角、夹层埋深、夹层倾角和夹层厚度变化的五种工况下,土坡的安全系数和最大总位移。随着软夹层倾角和厚度的增大,边坡安全系数和最大总位移均呈下降趋势。
The FEM software ABAQUS is applicable and the finite element shear strength reduction method is adopted for the numerical simulation of the stability of slopes with soft interlayer so as to analyze the safety factor and maximum total displacement of soil slopes under five different working conditions,including slope heights and angles,and the depth,angles and thickness of soft interlayer. The safety factor and maximum total displacement decrease with the increment in the angle and thickness of soft layer.
The FEM software ABAQUS is applicable and the finite element shear strength reduction method is adopted for the numerical simulation of the stability of slopes with soft interlayer so as to analyze the safety factor and maximum total displacement of soil slopes under five different working conditions,including slope heights and angles,and the depth,angles and thickness of soft interlayer. The safety factor and maximum total displacement decrease with the increment in the angle and thickness of soft layer.
引文
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[7]郑颖人,赵尚毅,张鲁渝.用有限元强度折减法进行边坡稳定分析[J].中国工程科学,2002,4(10):57-61,78.Zheng Y R,Zhao S Y,Zhang L Y.Slope stability analysis by strength reduction FEM[J].Engineering Science,2002,4(10):57-61,78.
[8]郑颖人,赵尚毅.有限元强度折减法在土坡与岩坡中的应用[J].岩石力学与工程学报,2004,23(19):3381-3388.Zheng Y R,Zhao S Y.Application of strength reduction fem in soil and rock slope[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(19):3381-3388.
[9]刘明维,郑颖人.基于有限元强度折减法确定滑坡多滑动面方法[J].岩石力学与工程学报,2006,25(8):1544-1549.Liu M W,Zheng Y R.Determination methods of multi-slip surfaces landslide based on strength reduction FEM[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(8):1544-1549.
[10]宋二祥,高翔,邱玥.基坑土钉支护安全系数的强度参数折减有限元法[J].岩土工程学报,2005,27(3):258-263.Song E X,Gao X,Qiu Y.Finite element calculation for safety factor of soil nailing through reduction of strength parameters[J].Chinese Journal of Geotechnical Engineering,2005,27(3):258-263.
[11]郑宏,刘德富.弹塑性矩阵Dep的特性和有限元边坡稳定性分析中的极限状态标准[J].岩石力学与工程学报,2005,24(7):1099-1105.Zheng H,Liu D F.Properties of elasto-plastic matrix Depand a criterion on limiting state of slope stability by FEM[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(7):1099-1105.
[12]郑颖人,陈祖煜,王恭先,等.边坡与滑坡工程治理[M].2版.北京:人民交通出版社,2010.
[13]杜明庆,王旭春,王宁.基于ABAQUS强度折减法的边坡稳定性分析[J].青岛理工大学学报,2012,33(4):10-14.Du M Q,Wang X C,Wang N.Analysis of slope stability by strength reduction FEM based on ABAQUS[J].Journal of Qingdao Technological University,2012,33(4):10-14.
[14]费康,张建伟.ABAQUS在岩土工程中的应用[M].北京:中国水利水电出版社,2010.
[15]周桂云.基于强度折减的边坡稳定安全系数有限元迭代解法[J].水利水电科技进展,2010,30(3):58-61,94.Zhou G Y.Finite element iteration method for safety factor of slope stability based on strength reduction method[J].Advances in Science and Technology of Water Resources,2010,30(3):58-61,94.
[16]张宏.应用弹塑性力学[M].西安:西北工业大学出版社,2011.
[17]曹金凤,石亦平.ABAQUS有限元分析常见问题解答[M].北京:机械工业出版社,2009.
[2]刘立平,杨实君,李英民.软夹层参数对边坡动力特性的影响分析[J].重庆大学学报:自然科学版,2007,30(5):31-34.Liu L P,Yang S J,Li Y M.Influence of soft soil layer on dynamic characteristic of the slope[J].Journal of Chongqing University:Natural Science Edition,2007,30(5):31-34.
[3]储文静.湘西红砂岩的工程地质特征与工程边坡的稳定性分析[D].长沙:中南大学,2009.
[4]石乃鑫.含软弱夹层岩质边坡的地震时程响应分析[D].兰州:兰州理工大学,2010.
[5]秦鸿.软弱夹层边坡变形性状及其影响因素分析[J].重庆交通大学学报:自然科学版,2011,30(2):282-286.Qin H.Analysis of deformation characteristics and its influencing factors of slope with soft interlayer[J].Journal of Chongqing Jiaotong University:Natural Science,2011,30(2):282-286.
[6]袁伟,黄茂松,刘怡林,等.含软弱夹层土坡稳定性的三维弹塑性数值模拟[J].郑州大学学报:工学版,2012,33(5):1-4.Yuan W,Huang M S,Liu Y L,et al.Three-dimensional stability analysis of slopes with weak interlayer based on elastoplastic numerical method[J].Journal of Zhengzhou University:Engineering Science,2012,33(5):1-4.
[7]郑颖人,赵尚毅,张鲁渝.用有限元强度折减法进行边坡稳定分析[J].中国工程科学,2002,4(10):57-61,78.Zheng Y R,Zhao S Y,Zhang L Y.Slope stability analysis by strength reduction FEM[J].Engineering Science,2002,4(10):57-61,78.
[8]郑颖人,赵尚毅.有限元强度折减法在土坡与岩坡中的应用[J].岩石力学与工程学报,2004,23(19):3381-3388.Zheng Y R,Zhao S Y.Application of strength reduction fem in soil and rock slope[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(19):3381-3388.
[9]刘明维,郑颖人.基于有限元强度折减法确定滑坡多滑动面方法[J].岩石力学与工程学报,2006,25(8):1544-1549.Liu M W,Zheng Y R.Determination methods of multi-slip surfaces landslide based on strength reduction FEM[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(8):1544-1549.
[10]宋二祥,高翔,邱玥.基坑土钉支护安全系数的强度参数折减有限元法[J].岩土工程学报,2005,27(3):258-263.Song E X,Gao X,Qiu Y.Finite element calculation for safety factor of soil nailing through reduction of strength parameters[J].Chinese Journal of Geotechnical Engineering,2005,27(3):258-263.
[11]郑宏,刘德富.弹塑性矩阵Dep的特性和有限元边坡稳定性分析中的极限状态标准[J].岩石力学与工程学报,2005,24(7):1099-1105.Zheng H,Liu D F.Properties of elasto-plastic matrix Depand a criterion on limiting state of slope stability by FEM[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(7):1099-1105.
[12]郑颖人,陈祖煜,王恭先,等.边坡与滑坡工程治理[M].2版.北京:人民交通出版社,2010.
[13]杜明庆,王旭春,王宁.基于ABAQUS强度折减法的边坡稳定性分析[J].青岛理工大学学报,2012,33(4):10-14.Du M Q,Wang X C,Wang N.Analysis of slope stability by strength reduction FEM based on ABAQUS[J].Journal of Qingdao Technological University,2012,33(4):10-14.
[14]费康,张建伟.ABAQUS在岩土工程中的应用[M].北京:中国水利水电出版社,2010.
[15]周桂云.基于强度折减的边坡稳定安全系数有限元迭代解法[J].水利水电科技进展,2010,30(3):58-61,94.Zhou G Y.Finite element iteration method for safety factor of slope stability based on strength reduction method[J].Advances in Science and Technology of Water Resources,2010,30(3):58-61,94.
[16]张宏.应用弹塑性力学[M].西安:西北工业大学出版社,2011.
[17]曹金凤,石亦平.ABAQUS有限元分析常见问题解答[M].北京:机械工业出版社,2009.
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