[1]胡其志,王浩杨,周 勇,等. 降雨对抗滑桩加固边坡稳定性的影响[J].湖北工业大学学报,2022,(4):75-80.
 HU Qizhi,WANG Haoyang,ZHOU Yong,et al. Study on Influence of Rainfall on Stability of Reinforced Slope with Anti-slide Piles[J].,2022,(4):75-80.
点击复制

 降雨对抗滑桩加固边坡稳定性的影响()
分享到:

《湖北工业大学学报》[ISSN:1003-4684/CN:42-1752/Z]

卷:
期数:
2022年第4期
页码:
75-80
栏目:
湖北工业大学学报
出版日期:
2022-08-28

文章信息/Info

Title:
 Study on Influence of Rainfall on Stability of Reinforced Slope with Anti-slide Piles
文章编号:
1003-4684(2022)04-0075-06
作者:
 胡其志1王浩杨1周 勇1丁志刚2包文成2
 1 湖北工业大学土木建筑与环境学院, 湖北 武汉 430068;
 2 中交路桥南方工程有限公司, 北京 100029
Author(s):
 HU Qizhi1 WANG Haoyang ZHOU Yong1DING Zhigang2BAO Wencheng2
 1 School of Civil Engin.,Architecture and Environment Hubei Univ.of Tech.,Wuhan 430068,China;
 2 Zhongjiao Road and Bridge Southern Engineering Co., Ltd., Beijing 100029, China
关键词:
 降雨 抗滑桩 边坡稳定性 非饱和渗流 强度折减法 数值模拟
Keywords:
 rainfall anti-slide pile slope stability unsaturated seepage strength reduction method numerical simulation
分类号:
TU432
文献标志码:
A
摘要:
 为研究降雨条件下抗滑桩加固边坡的稳定性及其渗流场演变,以枞树坪边坡工程为例,将非饱和渗流理论与强度折减法相结合,利用MIDAS GTS对降雨边坡进行数值模拟,定量分析基质吸力、降雨强度、桩顶约束形式对抗滑桩边坡稳定性的影响。结果表明:在降雨状态下,雨水首先危害边坡的浅层土体,孔隙水压力随土体深度呈现出大-小-大分布,随着降雨的持续,孔隙水压力的最小值向土体内部发展,雨水对边坡的影响深度增大,浸润线上升,深层土体的负孔隙水压力转化为正孔隙水压力,基质吸力的作用也随之减小。其中,降雨强度对边坡的危害始终增大,对桩顶施加位移约束和固定约束可以减小降雨对边坡的影响,限制边坡位移,并且固定约束的加固效果要略高于位移约束。
Abstract:
 In order to study the stability of the slope reinforced by anti-slide piles and the evolution of its seepage field under rainfall conditions, taking the Zongshuping slope project as an example, the unsaturated seepage theory is combined with the strength reduction method, and MIDAS GTS is used to carry out the rainfall slope Numerical simulation, quantitative analysis of the influence of matrix suction, rainfall intensity, and pile top restraint on the stability of the anti-sliding pile slope. The results show that under rainfall conditions, rainwater first harms the shallow soil of the slope, and the pore water pressure presents a large-small-large distribution with the depth of the soil. As the rainfall continues, the minimum value of the pore water pressure is directed toward the soil. Internal development, the depth of the impact of rain on the slope increases, the infiltration line rises, the negative pore water pressure of the deep soil is transformed into positive pore water pressure, and the effect of matrix suction is also reduced. Among them, the damage of rainfall intensity to the slope is always increasing. Imposing displacement constraints and fixed constraints on the pile top can reduce the impact of rainfall on the slope and limit the slope displacement, and the reinforcement effect of fixed constraints is slightly higher than that of displacement constraints.

参考文献/References:

[1] CAI F, UGAI K. Numerical analysis of rainfall effects on slope stability[J]. International Journal of Geomechanics, 2004,4(2):69-78.
[2] 年廷凯,徐海洋,刘红帅.抗滑桩加固边坡三维数值分析中的几个问题[J].岩土力学,2012,33(8):2521-2526+2535.
[3] 陈冲,王卫,吕华永.基于复合抗滑桩模型加固边坡稳定性分析[J].岩土力学,2019,40(8):3207-3217.
[4] 王一兆,隋耀华.降雨入渗对边坡浅层稳定性的影响[J].长江科学院院报,2017,34(4):122-125.
[5] 杨矫,王宇,雷富宏,等.降雨入渗下残坡积土边坡的稳定性模拟研究[J].安全与环境工程,2012,19(3):5-11.
[6] 王述红,何坚,杨天娇.考虑降雨入渗的边坡稳定性数值分析[J].东北大学学报(自然科学版),2018,39(8):1196-1200.
[7] 李海亮,吴礼舟,黄润秋,等.降雨条件下双层土坡的模型实验研究[J].长江科学院院报,2012,29(10):102-107.
[8] 苏洪健,刘子振,黄知花,等.持续降雨条件下土质边坡雨水入渗深度模拟试验[J].中国科技论文,2015,10(1):91-94.
[9] 胡其志,程明生.考虑孔隙水压力的土质边坡稳定性分析[J].长沙大学学报,2010,24(2):44-46.
[10] 郑方,邵生俊,佘芳涛,等.重塑黄土在不同基质吸力下的真三轴剪切试验[J].岩土力学,2020,41(S1):156-162.
[11] 曾茂宗,甘建军,陈炳贵,等.基质吸力对非饱和滑带土抗剪强度的影响试验研究[J].工程勘察,2018,46(11):7-12.
[12] 任佳,简文星,陈小龙,等.树坪滑坡非饱和土的土-水特征曲线试验研究[J].安全与环境工程,2016,23(4):14-19.
[13] 陈学东.浅层非饱和带降雨入渗规律的试验与数值研究[D].南京:河海大学,2005.
[14] 朱伟,程南军,陈学东,等.浅谈非饱和渗流的几个基本问题[J].岩土工程学报,2006(2):235-240.
[15] FREDIUND D G, MORGENSTERN N R, WIDGER RA. The shear strength of unsaturated soils[J].Canadian Geotechnical Journal, 1978, 15(3):313-321.

相似文献/References:

[1]熊韧,曹海印,王焱清,等.非牛顿润滑静压轴承的节流器流量方程修正[J].湖北工业大学学报,2019,34(5):6.
 XIONG Ren,CAO Haiyin,WANG Yanqing,et al.Modified restrictor flow equations of hydrostatic bearings ubricated by non-Newtonian fluids[J].,2019,34(4):6.
[2]王照远,曹 民,王 毅,等. 场景与数据双驱动的隧道图像拼接方法[J].湖北工业大学学报,2020,(4):11.
 WANG Zhaoyuan,CAO Min,WANG Yi,et al. Tunnel Image Stitching Method based on Scene and Data[J].,2020,(4):11.
[3]潘 健,梁佳成,陈凤娇,等. 单电流闭环多重PR控制的LCL型逆变器[J].湖北工业大学学报,2020,(4):16.
 PAN Jian,LIANG Jiacheng,CHEN Fengjiao,et al. Design of LCL Grid Connected Inverter based on Single Closed Loop Control and Multiple PR Controllers[J].,2020,(4):16.
[4]王晓光,赵 萌,文益雪,等. 定子闭口槽结构对永磁电机齿槽转矩影响分析[J].湖北工业大学学报,2020,(4):25.
 WANG Xiaoguang,ZHAO Meng,WEN Yixue,et al. Study on Cogging Torque and Vibration Noise of Permanent Magnet Motor with Segmental Stator and Closed-Slot[J].,2020,(4):25.
[5]宇 卫,凃玲英,陈 健. 风电场集中接入对集电线电流保护的影响[J].湖北工业大学学报,2020,(4):29.
 YU Wei,TU Lingying,CHEN Jian. Effect of the Collective Line Current Protection when Wind Farms are Centralized Accessed to the Power System[J].,2020,(4):29.
[6]廖政斌,王泽飞,祝 珊. 二惯量系统谐振在线抑制及相位补偿[J].湖北工业大学学报,2020,(4):34.
 LIAO Zhengbin,WANG Zefei,ZHU Shan. Online Resonance Suppression and Phase Compensation for Double Inertia System[J].,2020,(4):34.
[7]王 欣,游 颖,姜天翔,等. 面向3D打印过程的产品工艺设计和优化[J].湖北工业大学学报,2020,(4):39.
 WANG Xin,YOU Ying,JIANG Tianxiang,et al. Product Process Design and Optimization for 3D Printing Processes[J].,2020,(4):39.
[8]冉晶晶,文 红,罗雅梅,等. 全自动样品前处理平台及其控制系统[J].湖北工业大学学报,2020,(4):43.
 RAN Jingjing,WEN Hong,LUO Yamei,et al. Research on Automatic Sample Preprocessing Platform and its Control System[J].,2020,(4):43.
[9]杨 磊,马志艳,石 敏,等. 基于模糊PID的小型冷库过热度控制方法[J].湖北工业大学学报,2020,(4):43.
 YANG Lei,MA Zhiyan,SHI Min,et al. Research on Superheat Control Method of Small Cold Storage based on Fuzzy PID[J].,2020,(4):43.
[10]黄 晶,周细枝,周业望. 动态注塑成型模具的设计与实验研究[J].湖北工业大学学报,2020,(4):52.
 HUANG Jing,ZHOU Xizhi,ZHOU Yewang. Design and Experimental Study of Dynamic Injection Molding[J].,2020,(4):52.

备注/Memo

备注/Memo:
[收稿日期] 2021-05-20
[基金项目] 国家自然科学基金(51609081)
[第一作者] 胡其志(1969-),男,湖北武汉人,工学博士,湖北工业大学教授,研究方向岩土工程及多场耦合等
更新日期/Last Update: 2022-08-29