水平-竖向加筋土挡墙作用机理的离散元数值模拟

上海交通大学学报（自然版） ›› 2012, Vol. 46 ›› Issue (10): 1548-1552.

水平-竖向加筋土挡墙作用机理的离散元数值模拟

周淮1,2，张孟喜1

(1.上海大学土木工程系，上海 200072; 2.上海城投置地(集团)有限公司，上海 200438)

收稿日期:2011-10-08 出版日期:2012-10-30 发布日期:2012-10-30
基金资助:
国家自然科学基金资助项目（40972192）

Numerical Simulation on Mechanism of Soil Retaining Wall Reinforced with H-V Inclusions by DEM

ZHOU Huai-1, 2 , ZHANG Meng-Xi-1

(1.Department of Civil Engineering, Shanghai University, Shanghai 200072, China; 2.Shanghai Chengtou City Land (Group) Corporation, Shanghai 200438, China)

Received:2011-10-08 Online:2012-10-30 Published:2012-10-30

摘要/Abstract

摘要： 在水平-竖向（H-V）加筋土挡墙室内模型试验的基础上，采用基于离散元理论的颗粒流软件（PFC）对试验进行了仿真模拟.就PFC模拟得出的挡墙变形和竖筋侧应力等数据，与模型试验结果进行了比较和验证.同时，结合挡墙内部土颗粒位移和应力矢量图研究了H-V土加筋挡墙的作用机理及破裂面形式.

关键词: 水平-竖向加筋土挡墙, 模型试验, 颗粒流, 离散元

Abstract: Soil reinforced with horizontal-vertical (H-V) is a new concept of reinforced soil. A series of laboratory model tests of soil retaining wall reinforced with H-V inclusions were investigated and the particle flow code (PFC), based on the discrete element method (DEM), was used to simulate the model tests. The facing displacements and lateral earth pressures acted on vertical elements from PFC numerical simulations were compared with the results of model tests. Meanwhile, the mechanism and failure surface of soil retaining wall reinforced with H-V inclusions were investigated by the displacement and stress field of PFC ball units.

Key words: soil retaining wall reinforced with horizontal-vertical (H-V) inclusions, model test, particle flow code (PFC), discrete element method (DEM)

中图分类号:

TU 443

周淮1, 2, 张孟喜1. 水平-竖向加筋土挡墙作用机理的离散元数值模拟[J]. 上海交通大学学报（自然版）, 2012, 46(10): 1548-1552.

ZHOU Huai-1, 2 , ZHANG Meng-Xi-1. Numerical Simulation on Mechanism of Soil Retaining Wall Reinforced with H-V Inclusions by DEM[J]. Journal of Shanghai Jiaotong University, 2012, 46(10): 1548-1552.

参考文献

［1］周健, 廖雄华, 池永,等. 土的室内平面应变试验的颗粒流模拟［J］. 同济大学学报, 2002, 30(9):10441050.
ZHOU Jian, LIAO Xionghua, CHI Yong, et al. Simulating plane strain test of soils by particle flow code［J］. Journal of Tongji University, 2002, 30(9):10441050.
［2］刘文白, 周健. 上拔荷载作用下扩展基础的颗粒流数值模拟［J］. 水利学报, 2004, 12:6976.
LIU Wenbai, ZHOU Jian. Particle flow code numerical simulation of extended foundation under the action of uplift loading ［J］. Journal of Hydraulic Engineering, 2004, 12: 6976.
［3］Chareyre B, Villard P. Dynamic spar elements and discrete element methods in two dimensions for the modeling of soilinclusion problems ［J］. Journal of Engineering Mechanics, 2005, 131(7):689698.
［4］McDowell G R, Harieche O, Konietzky H, et al. Discrete element modeling of geogridreinforced aggregates ［J］. Geotechnical Engineering, 2006, 159 (1):3548.
［5］Zhang J, Yasufuku N, Ochiai H. A few considerations of pullout test characteristics of geogrid reinforced sand using DEM analysis ［J］. Geosynthetics Engineering Journal, 2007, 22(11):103110.
［6］Kazempoor S, Noorzad A, Mahboubi A, et al. Numerical modelling of smooth geomembranesoil interaction shear behaviour by distinct element method ［C］∥Proceedings of the 4th Asian Regional Conference on Geosynthetics. Shanghai: Springer Press, 2008:575578.
［7］Zhang M X, Javadi A A, Min X. Triaxial tests of sand confined with 3D inclusions ［J］. Geotextiles and Geomembranes, 2006, 24 (9):201209.
［8］张孟喜, 闵兴. 单层立体加筋砂土性状的三轴试验研究［J］. 岩土工程学报, 2006, 28(8):931936.
ZHANG Mengxi, MIN Xing. Behavior of sand reinforced with onelayer 3D reinforcement by triaxial tests［J］. Chinese Journal of Geotechnical Engineering, 2006, 28(8): 931936.
［9］张孟喜, 王振武. 双层立体加筋砂土性状的强度特性［J］. 岩石力学与工程学报, 2006, 25(sup1):3289–3298.
ZHANG Mengxi, WANG Zhenwu. Strength properties of twolayer threedimensional reinforced sand ［J］. Chinese Journal of Rock Mechanics and Engineering, 2006, 25(sup1):32893298.
［10］Zhang M X, Zhou H. Model test on sand retaining wall reinforced with dentistrip inclusions［J］. Science in China Series E: Technological Sciences, 2008, 51(12):2269 2279.
［11］张孟喜, 张石磊. HV加筋土性状的颗粒流细观模拟［J］. 岩土工程学报, 2008, 30(5):19.
ZHANG Mengxi, ZHANG Shilei. Behaviour of soil reinforced with HV inclusions by PFC2D［J］. Chinese Journal of Geotechnical Engineering, 2008, 30(5): 19.

[1]	刘谨豪, 严远忠, 张琪, 卞荣, 贺雷, 叶冠林. 地面堆载对既有隧道影响离心试验和数值分析[J]. 上海交通大学学报, 2022, 56(7): 886-896.
[2]	张晨雅, 寇雨丰, 吕海宁, 肖龙飞, 刘明月. 经典式Spar平台涡激运动与驰振特性的对比试验[J]. 上海交通大学学报, 2021, 55(5): 497-504.
[3]	阳杰, 何炎平, 孟龙, 赵永生, 吴浩宇. 极限海况下6 MW单柱型浮式风力机耦合动力响应[J]. 上海交通大学学报, 2021, 55(1): 21-31.
[4]	赵东亚，胡志强，陈刚. 浮式液化天然气系统液体装载船体的耦合响应[J]. 上海交通大学学报, 2019, 53(5): 540-548.
[5]	杨羿帆, 李欣, 武博, 李健行, 盛楠. 不同形状长月池对钻井船阻力影响研究[J]. 海洋工程装备与技术, 2019, 6(1): 470-477.
[6]	刘建成, 郭英豪, 肖龙飞, 滕晓青, 王金光, 徐立新, 陆海东. 半潜式钻井平台波浪砰击载荷试验研究[J]. 海洋工程装备与技术, 2018, 5(增刊): 234-237.
[7]	张亚国1，李镜培2. 静压沉桩引起的土体应力与孔压分布特征[J]. 上海交通大学学报（自然版）, 2018, 52(12): 1587-1593.
[8]	赵大刚1，郭春雨1，苏玉民1，豆鹏飞2，景涛1，张海鹏1. L型吊舱推进器直航及操舵工况水动力性能试验研究[J]. 上海交通大学学报（自然版）, 2017, 51(7): 812-818.
[9]	谷家扬，谢玉林，陶延武，黄祥宏，吴介. 新型浮式钻井生产储油平台涡激运动数值模拟及试验研究 [J]. 上海交通大学学报（自然版）, 2017, 51(7): 878-885.
[10]	韩旭亮, 谢彬, 王世圣, 喻西崇, 李焱. 海上多浮体作业系统运动响应数值模拟及模型试验[J]. 海洋工程装备与技术, 2017, 4(5): 287-292.
[11]	焦甲龙, 任慧龙, 于海成. 船舶在斜浪规则波中的载荷响应分析[J]. 上海交通大学学报, 2016, 50(03): 407-412.
[12]	汤华，熊晓荣，吴振君，袁从华，邓琴. 隧道锚抗拔作用机理的室内模型试验[J]. 上海交通大学学报（自然版）, 2015, 49(07): 935-939.
[13]	杨鸿凯，车爱兰，汤政，冯少孔. 基于弹性波理论的高铁线下结构病害快速检测方法[J]. 上海交通大学学报（自然版）, 2015, 49(07): 1010-1016.
[14]	张晓清1，张孟喜1，吴应明2，李磊1，王有成1. 多线叠交盾构隧道近接施工模型试验[J]. 上海交通大学学报（自然版）, 2015, 49(07): 1040-1045.
[15]	刘亚东. 双体小水线面水翼复合船浮态及阻力试验研究[J]. 海洋工程装备与技术, 2014, 1(3): 234-239.