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- 2016
非连续变形分析方法及其在灾害防治研究中的应用
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Abstract:
为了探究地震诱发地质灾害的特征,用非连续变形分析方法(DDA, discontinuous deformation analysis)模拟了地震诱发崩塌、滑坡和防浪堤破坏的过程,着重探讨了地震对灾害发生过程及其运动能力的影响.在DDA程序中,整合了灾害冲击力的计算,结果表明DDA方法可以计算滑体在地震作用下的运动情况;竖向地震动能够显著增强近断层极震区滑坡的运动能力,可以很好地模拟地震诱发灾害的全过程, 真实反应出危岩崩塌体、滑坡、防浪堤坝的破坏特征,能够计算运动物体对既有建筑物的冲击力,冲击力的最大值远远超过了静态侧压力值;文中算例结果显示最大冲击力是静态侧压力的4倍多,该成果可为灾害防护建筑物的选址、设计等从可靠和经济的角度提供技术指导.
： In order to explore the characteristics of geological hazards induced by earthquake, the discontinuous deformation analysis (DDA) was used to simulate the failure processes of rock collapses, landslides, and breakwaters under the earthquake loading. Particularly, the influence of the earthquake loading on hazard processes and motions was studied, and new modules were integrated into the current DDA code to obtain the interaction forces. The results show that DDA can be applied to evaluation of landslide mass mobility. The vertical ground motion can remarkably amplify the mobility in the near-fault area. DDA has advantage in the whole-process simulation of landslide induced by earthquake. The simulation results can reflect the characteristics of the failure processes of collapses, landslides and breakwaters faithfully. In addition, DDA is also able to calculate the impact force of failure masses on structures. The peak value of the impact force is much larger than the static lateral pressure, and is four times more than the static lateral pressure in the case study. Hence, the DDA can provide technical guidance for site selection and design of disaster protection from the perspective of reliability and economy
| [1] | WANG L, JIANG H, YANG Z, et al. Development of discontinuous deformation analysis with displacement-dependent interface shear strength[J]. Computers and Geotechnics, 2013, 47:91-101. |
| [2] | CHEN Guangqi. Numerical modeling of rock fall using extended DDA[J]. Chinese Journal of Rock Mechanics and Engineering, 2003, 22(6):926-931. |
| [3] | MA G C, MATSUYAMA H, NISHIYAMA S, et al. Practical studies on rockfall simulation by DDA[J]. J. Rock Mechanics Geotech Engineering, 2011, 3(1):57-63. |
| [4] | KVELDSVIK V, EINSTEIN H H, NILSEN B, et al. Numerical analysis of the 650000 m2 ？knes rock slope based on measured displacements and geotechnical data[J]. Rock Mechanics and Rock Engineering, 2009, 42(5):689-728. |
| [5] | WU J H. Seismic landslide simulations in discontinuous deformation analysis[J]. Computers and Geotechnics, 2010, 37(5):594-601. |
| [6] | WU J H, OHNISHI Y, NISHIYAMA S. Simulation of the mechanical behavior of inclined jointed rock masses during tunnel construction using discontinuous deformation analysis (DDA)[J]. International Journal of Rock Mechanics and Mining Sciences, 2004, 41(5):731-743. |
| [7] | TSESARSKY M, HATZOR Y H. Tunnel roof deflection in blocky rock masses as a function of joint spacing and friction A parametric study using discontinuous deformation analysis (DDA)[J]. Tunnelling and Underground Space Technology, 2006, 21(1):29-45. |
| [8] | 袁志辉. 延长县崩塌的数值模拟和运动机理研究[D]. 西安:长安大学,2008. |
| [9] | 崔芳鹏,胡瑞林,殷跃平,等. 纵横波时差耦合作用的斜坡崩滑效应离散元分析-以北川唐家山滑坡为例[J]. 岩石力学与工程学报,2010,29(2):319-327. CUI Fangpeng, HU Ruilin, YIN Yueping, et al. Discrete element analysis of collapsing and sliding response of slope triggered by time difference coupling effects of P and S seismic waves-taking Tangjiashan landslide in Beichuan county for example[J]. Chinese Journal of Rock Mechanics and Engineering, 2010, 29(2):319-327. |
| [10] | YU Pengcheng, ZHANG Yingbin, JOHN X.Zhao, et al. Interaction forces between blocks in DDA method and its application[C]//12th International Conference on Analysis of Discontinuous Deformation. Wuhan:, 2015:1-8. |
| [11] | CHEN G, ZHENG L, ZHANG Y, et al. Stability analysis of breakwater under seepage flow using DDA[C]//ASME 201332nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers. Nantes:, 2013:V006T10A035-V006T10A035. |
| [12] | CHEN G, ZHENG L, ZHANG Y. Practical applications of DDA to disaster prevention[M]. Fukuoka:, 2013:15-28. |
| [13] | DONG S, ZEN K, KASAMA K, et al. Theoretical and experimental study on tsunami induced instability of casisson type composite breakwater[J]. Memoirs of the Faculty of Engineering, Kyushu University, 2012, 72(2):55-68. |
| [14] | CHEN G Q, MIKI S, OHNISHI Y. Development of the interactive visualization system for DDA[C]//Proceedings of the 9th International Conference on Computer Methods and Advances in Geomechanics. Wuhan:, 1997:495-500. |
| [15] | DOOLIN D M, SITAR N. Time integration in discontinuous deformation analysis[J]. Journal of Engineering Mechanics, 2004, 130(3):249-258. |
| [16] | ZHANG Y, CHEN G, ZHENG L, et al. Effects of near-fault seismic loadings on run-out of large-scale landslide:a case study[J]. Engineering Geology, 2013, 166:216-236. |
| [17] | BAKUN-MAZOR D, HATZOR Y H, GLASER S D. Dynamic sliding of tetrahedral wedge:The role of interface friction[J]. International Journal for Numerical and Analytical Methods in Geomechanics, 2012, 36(3):327-343. |
| [18] | THOMAS P A, BRAY J D. Capturing nonspherical shape of granular media with disk clusters[J]. Journal of Geotechnical and Geoenvironmental Engineering, 1999, 125(3):169-178. |
| [19] | KAMAI R, HATZOR Y H. Numerical analysis of block stone displacements in ancient masonry structures:A new method to estimate historic ground motions[J]. International Journal for Numerical and Analytical Methods in Geomechanics, 2008, 32(11):1321-1340. |
| [20] | 张迎宾,余鹏程,赵兴权. 类梯形山体的地震动力响应分析[J]. 西南交通大学学报,2015,3(3):435-441. ZHANG Yingbin, YU Pengcheng, ZHAO Xingquan. Analytical solutions of earthquake dynamic responses of trapezoid-like mountain[J]. Journal of Southwest Jiaotong University, 2015, 3(3):435-441. |
| [21] | 殷跃平. 汶川八级地震地质灾害研究[J]. 工程地质学报,2008,16(4):433-444. YIN Yueping. Researches on the geo-hazards triggered by Wenchuan Earthquake, Sichuan[J]. Journal of Engineering Geology, 2008, 16(4):433-444. |
| [22] | 许强. 汶川地震大型滑坡研究[M]. 科学出版社,2009:53-91. |
| [23] | 黄润秋,裴向军,张伟锋,等. 再论大光包滑坡特征与形成机制[J]. 工程地质学报,2009,6(6):725-736. HUANG Runqiu, PEI Xiangjun, ZHANG Weifeng, et al. Further examination on characteristicsand formation mechanism of Daguangbao landslide[J]. Journal of Engineering Geology, 2009, 17(6):725-736. |
| [24] | HUANG R, PEI X, FAN X, et al. The characteristics and failure mechanism of the largest landslide triggered by the Wenchuan earthquake, May 12, 2008, China[J]. Landslides, 2012, 9(1):131-142. |
| [25] | 胡卸文,顾成壮,牛彦博,等. 芦山地震触发大岩崩滑坡-碎屑流特征与运动过程[J]. 西南交通大学学报,2013,48(4):590-598. HU Xiewen, GU Chengzhuang, NIU Yanbo, et al. Debris flow characteristics and movement process of dayanbeng landslide in tianquan county triggered by "4·20" lushan earthquake[J]. Journal of Sowthwest Jiaotong University, 2013, 48(4):590-598. |
| [26] | 邱燕玲,姚令侃,朱颖,等. 高烈度地震山区铁路减灾选线技术[J]. 西南交通大学学报,2014, 49(6):972-980. QIU Yanling, YAO Lingkan, ZHU Yin, et al. Disaster reduction techniques of railway route selection in mountainous regions with high earthquake intensity[J]. Journal of Southwest Jiaotong University, 2014, 49(6):972-980. |
| [27] | KE T C. The issues of rigid-body rotation in DDA. First international forum on discontinuous deformation analysis (DDA) and simulations of discontinuous media[M]. Berkeley:, 1996:18-25. |
| [28] | CHENG Y M. Advancements and improvement in discontinuous deformation analysis[J]. Computers and Geotechnics, 1998, 22(2):153-163. |
| [29] | DOOLIN D M. Unified displacement boundary constraint formulation for discontinuous deformation analysis (DDA)[J]. International Journal for Numerical and Analytical Methods in Geomechanics, 2005, 29(12):1199-1207. |
| [30] | WU J H, OHNISHI Y, NISHIYAMA S. A development of the discontinuous deformation analysis for rock fall analysis[J]. International Journal for Numerical and Analytical Methods in Geomechanics, 2005, 29(10):971-988. |
| [31] | CHEN G, ZHENG L, ZHANG Y, et al. Numerical simulation in rockfall analysis:a close comparison of 2-D and 3-D DDA[J]. Rock Mechanics and Rock Engineering, 2013, 46(3):527-541. |
| [32] | SITAR N, MACLAUGHLIN M M. Kinematics and discontinuous deformation analysis of landslide movement[C]//2nd Panamerican Symp. on Landslides. Rio de Janeiro:. 1997. |
| [33] | LIN C T, AMADEI B, JUNG J, et al. Extensions of discontinuous deformation analysis for jointed rock masses[C]//International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts. Pergamon:, 1996:671-694. |
| [34] | WU J H, CHEN C H. Application of DDA to simulate characteristics of the Tsaoling landslide[J]. Computers and Geotechnics, 2011, 38(5):741-750. |
| [35] | YEUNG M R, LEONG L L. Effects of joint attributes on tunnel stability[J]. International Journal of Rock Mechanics and Mining Sciences, 1997, 34(3/4):348e1-348e18. |
| [36] | TSESARSKY M, HATZOR Y H, SITAR N. Dynamic displacement of a block on an inclined plane:analytical, experimental and DDA results[J]. Rock Mechanics and Rock Engineering, 2005, 38(2):153-167. |
| [37] | YEUNG M R. Analysis of a mine roof using the DDA method[C]//International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts. Pergamon:, 1993, 30(7):1411-1417. |
| [38] | KIM Y I, AMADEI B, PAN E. Modeling the effect of water, excavation sequence and rock reinforcement with discontinuous deformation analysis[J]. International Journal of Rock Mechanics and Mining Sciences, 1999, 36(7):949-970. |
| [39] | ZHU W, ZHANG Q, JING L. Stability analysis of the ship-lock slopes of the Three-Gorge project by three-dimensional FEM and DEM techniques[C]//Proceedings of the Third International Conference of Discontinuous Deformation Analysis (ICADD-3). Alexandria:American Rock Mechanics Association (ARMA), 1999:263-272. |
| [40] | LAW H K, LAM I P. Evaluation of seismic performance for tunnel retrofit project[J]. Journal of Geotechnical and Geoenvironmental Gngineering, 2003, 129(7):575-589. |
| [41] | HATZOR Y H, ARZI A A, TSESARSKY M. Realistic dynamic analysis of jointed rock slopes using DDA[C]//Proc., 5th International Conference on Analysis of Discontinuous Deformation-stability of rock structures. Rotterdam:Balkema, 2002:47-56. |
| [42] | HATZOR Y H, ARZI A A, ZASLAVSKY Y, et al. Dynamic stability analysis of jointed rock slopes using the DDA method:King Herod's Palace, Masada, Israel[J]. International Journal of Rock Mechanics and Mining Sciences, 2004, 41(5):813-832. |
| [43] | ZHANG Y B, WANG J M, XU Q, et al. DDA validation of the mobility of earthquake-induced landslides[J]. Engineering Geology, 2014, 194:38-51. |
| [44] | KOO C Y, CHERN J C. Modification of the DDA method for rigid block problems[J]. International Journal of Rock Mechanics and Mining Sciences, 1998, 35(6):683-693. |
| [45] | WU J H. Applying discontinuous deformation analysis to assess the constrained area of the unstable Chiu-fen-erh-shan landslide slope[J]. International Journal for Numerical and Analytical Methods in Geomechanics, 2007, 31(5):649-666. |
| [46] | WU J H, LIN J S, CHEN C S. Dynamic discrete analysis of an earthquake-induced large-scale landslide[J]. International Journal of Rock Mechanics and Mining Sciences, 2009, 46(2):397-407. |
| [47] | ZHANG Y, CHEN G, ZHENG L, et al. Numerical analysis of the largest landslide induced by the Wenchuan earthquake, May 12, 2008 using DDA earthquake-induced landslides[M].:Springer Berlin Heidelberg, 2013:617-626. |
| [48] | HATZOR Y H, FEINTUCH A. The validity of dynamic block displacement prediction using DDA[J]. International Journal of Rock Mechanics and Mining Sciences, 2001, 38(4):599-606. |
| [49] | MACLAUGHLIN M, SITAR N, DOOLIN D, et al. Investigation of slope-stability kinematics using discontinuous deformation analysis[J]. International Journal of Rock Mechanics and Mining Sciences, 2001, 38(5):753-762. |
| [50] | DOOLIN D M, SITAR N. Displacement accuracy of discontinuous deformation analysis method applied to sliding block[J]. Journal of Engineering Mechanics, 2002, 128(11):1158-1168. |
| [51] | SHI G H. Discontinuous deformation analysis a new numerical model for the ststic and dynamics of block systems[D]. Berkely:University of Califormia, Berkely, 1988. |
| [52] | SITAR N, MACLAUGHLIN M M, DOOLIN D M. Influence of kinematics on landslide mobility and failure mode[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2005, 131(6):716-728. |
| [53] | NING Y, YANG J, AN X, et al. Simulation of blast induced crater in jointed rock mass by discontinuous deformation analysis method[J]. Frontiers of Architecture and Civil Engineering in China, 2010, 4(2):223-232. |
| [54] | NING Y, YANG J, AN X, et al. Modelling rock fracturing and blast-induced rock mass failure via advanced discretisation within the discontinuous deformation analysis framework[J]. Computers and Geotechnics, 2011, 38(1):40-49. |
| [55] | NING Y, YANG J, MA G, et al. Modelling rock blasting considering explosion gas penetration using discontinuous deformation analysis[J]. Rock Mechanics and Rock Engineering, 2011, 44(4):483-490. |
| [56] | HATZOR Y H, BENARY R. The stability of a laminated voussoir beam:back analysis of a historic roof collapse using DDA[J]. International Journal of Rock Mechanics and Mining Sciences, 1998, 35(2):165-181. |
| [57] | DONG X, WU A Q, REN F. A preliminary application of discontinuous deformation analysis (DDA) to the three gorges project on Yangtze River, China[C]//Proceedings of the First International Forum on Discontinuous Deformation Analysis (DDA) and Simulations of Discontinuous Media. Berkeley:, 1996:310-317. |
| [58] | KOTTENSTETTE J T. DDA analysis of the RCC modification for Pueblo Dam[C]//Proceedings of Third International Conference on Analysis of Discontinuous Deformation-From Theory to Practice.:Vail Co., 1999:3-4. |
| [59] | SCHELDT T, LU M, MYRVANG A. Numerical analysis of Gjovik cavern:a comparison of continuous and discontinuous results by using Phase 2 and DDA[C]//Fifth International Conference on Analysis of Discontinuous Deformation-Stability of Rock Structures. Rotterdam:Balkema, 2002:125-132. |
| [60] | 黄润秋,裴向军,李天斌. 汶川地震触发大光包巨型滑坡基本特征及形成机理分析[J]. 工程地质学报,2008,16(6):730-741. HUANG Runqiu, PEI Xiangjun, LI Tianbin. The basic characteristics and formation mechanism of Daguangbao large-scale landslide triggered by Wenchuan Earthquake[J]. Journal of Engineering Geology, 2008, 16(6):730-741. |
| [61] | 程强,苏生瑞. 汶川地震崩塌滚石坡面运动特征[J]. 岩土力学, 2014,35(3):772-776. CHENG Qiang, SU Shengrui. Movement characteristics of collapsed stones on slopes induced by Wenchuan earthquake[J]. Rock and Soil Mechanics, 2014, 35(3):772-776.. |
| [62] | YIN Y, WANG F, SUN P. Landslide hazards triggered by the 2008 Wenchuan earthquake, Sichuan, China[J]. Landslides, 2009, 6(2):139-152. |
| [63] | CHEN G, ZEN K, ZHENG L, et al. A new model for long-distance movement of earthquake induced landslide[C]//44th US Rock Mechanics Symposium and 5th US-Canada Rock Mechanics Symposium.:American Rock Mechanics Association, 2010:1-6. |
| [64] | 胡卸文,林晋辉,张茂淳,等. 宝兴县城周边4·20芦山强烈地震地质灾害触发效应[J]. 西南交通大学学报,2013,48(4):599-608. HU Xiewen, LIN Jinhui, ZHANG Maochun, et al. Trigger effect of earthquake geohazards around baoxing county induced by lushan 4·20 strong earthquake[J]. Journal of Southwest Jiaotong University, 2013, 48(4):599-608. |
