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基于PFC3D的地下连续墙槽壁稳定性模拟分析

何烨, 周昌军, 何鑫, 王胜, 解程超, 唐庆东, 李守信. 2023. 基于PFC3D的地下连续墙槽壁稳定性模拟分析. 钻探工程, 50(3): 152-158. doi: 10.12143/j.ztgc.2023.03.020
引用本文: 何烨, 周昌军, 何鑫, 王胜, 解程超, 唐庆东, 李守信. 2023. 基于PFC3D的地下连续墙槽壁稳定性模拟分析. 钻探工程, 50(3): 152-158. doi: 10.12143/j.ztgc.2023.03.020
HE Ye, ZHOU Changjun, HE Xin, WANG Sheng, XIE Chengchao, TANG Qingdong and LI Shouxin, . 2023. Trench wall stability simulation for the diaphragm wall based on PFC3D. DRILLING ENGINEERING, 50(3): 152-158. doi: 10.12143/j.ztgc.2023.03.020
Citation: HE Ye, ZHOU Changjun, HE Xin, WANG Sheng, XIE Chengchao, TANG Qingdong and LI Shouxin, . 2023. Trench wall stability simulation for the diaphragm wall based on PFC3D. DRILLING ENGINEERING, 50(3): 152-158. doi: 10.12143/j.ztgc.2023.03.020

基于PFC3D的地下连续墙槽壁稳定性模拟分析

详细信息
    作者简介: 何烨,男,汉族,1986年生,高级工程师,项目经理,建筑水工专业,主要从事基础处理工程工作,四川省成都市温江区花都大道西段9号融信智慧广场4栋,283604487@qq.com。
    通讯作者: 王胜,男,土家族,1982年生,教授,地质工程专业,博士,从事钻探新工艺与新材料的科研与教学工作,四川省成都市成华区二仙桥东三路1号,yongyuandewangsheng@sina.com。

Trench wall stability simulation for the diaphragm wall based on PFC3D

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  • 针对富水砂卵石层地下连续墙成槽过程中槽壁易发生失稳的问题,通过分析相关的研究资料,在明确失稳形式及机理的基础上,设计了改变流速和粒径比的两种模拟试验方案,采用PFC3D颗粒流软件分析了渗流对土颗粒间性质变化的影响。数值模拟结果表明:流速对于颗粒的位移有很大的影响。流速越快,颗粒位移越大,孔隙率越高,墙体所受应力也越大;粒径比对于颗粒的位移同样有很大影响,其表现的作用与流速相似;在有侧限的情况下,颗粒的x向位移在达到极限后会产生z向的分量,使得颗粒向上位移。在实际工程中就意味着在颗粒位移达到一定程度,必然会突破泥膜,导致土体内细颗粒的流失,土体孔隙率增大,最终使得槽壁发生垮塌。
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  • [1]

    路乾,胡长明,王晓华,等.地下连续墙成槽施工槽壁整体稳定性分析[J].地下空间与工程学报,2021,17(3):864-871.

    LU Qian, HU Changming, WANG Xiaohua, et al. Analysis on the overall stability of trenching construction of diaphragm wall[J]. Chinese Journal of Underground Space and Engineering, 2021,17(3):864-871.

    [2]

    [2] 李小青,潘鸿宝.成槽作业中泥浆的护壁作用分析[J].探矿工程,2001(4):21-23.

    LI Xiaoqing, PAN Hongbao. Analysis of the wall protection function of mud in trenching operations[J]. Exploration Engineering, 2001(4):21-23.

    [3]

    [3] 张涛,陈礼仪,彭建华,等.深基坑围护超深地下连续墙护壁泥浆的研究及应用[J].探矿工程(岩土钻掘工程),2013,40(2):68-70.

    ZHANG Tao, CHEN Liyi, PENG Jianhua, et al. Research on slurry in ultra deep underground continuous wall for deep foundation pit bracing[J]. Exploration Engineering (Rock & Soil Drilling and Tunneling), 2013,40(2):68-70.

    [4]

    [4] 孙立宝.超深地下连续墙施工中若干问题探讨[J].探矿工程(岩土钻掘工程),2010,37(2):51-55.

    SUN Libao. Discussion on the construction of super-deep underground diaphragm wall[J]. Exploration Engineering (Rock & Soil Drilling and Tunneling), 2010,37(2):51-55.

    [5]

    [5] 孙晓科.富水含砂地层中地下连续墙施工技术[J].市政技术,2015,33(2):180-185.

    SUN Xiaoke. Construction technology of diaphragm wall in water-rich sand stratum[J]. Journal of Municipal Technology, 2015,33(2):180-185.

    [6]

    [6] 丁勇春,李光辉,程泽坤,等.地下连续墙成槽施工槽壁稳定机制分析[J].岩石力学与工程学报,2013,32(S1):2704-2709.

    DING Yongchun, LI Guanghui, CHENG Zekun, et al. Analysis of trench face stability of diaphragm wall panel during slurry trenching[J]. Chinese Journal of Rock Mechanics and Engineering, 2013,32(S1):2704-2709.

    [7]

    [7] 曹豪荣,彭立敏,雷明锋,等.地下连续墙槽壁失稳模式及其稳定性计算方法研究现状[J].铁道科学与工程学报,2019,16(7):1743-1750.

    CHAO Haorong, PENG Limin, LEI Mingfeng, et al. Research status of the instability mode and its stability calculation method of underground diaphragm wall[J]. Journal of Railway Science and Engineering, 2019,16(7):1743-1750.

    [8]

    [8] 李志文,魏刚,郭运华,等.超深地下连续墙施工槽壁局部稳定判据[J].水利水电快报,2021,42(4):49-53,58.

    LI Zhiwen, WEI Gang, GUO Yunhua, et al. A new stability criterion of trench wall in constructing superdeep diaphragm wall[J]. Express Water Resources & Hydropower Information, 2021,42(4):49-53,58.

    [9]

    [9] 刘杨,刘维,史培新,等.超深地连墙成槽富水软弱层局部失稳理论研究[J].岩土力学,2020,41(S1):10-18.

    LIU Yang, LIU Wei, SHI Peixin, et al. Local instability analysis of the ultra-deep wall-to-slotted in water rich soft layer[J]. Rock and Soil Mechanics, 2020,41(S1):10-18.

    [10]

    [10] 李毅阳,李新平,郭运华,等.基于泥膜压力平衡的地连墙槽壁稳定判据研究[J].土工基础,2021,35(4):482-486.

    LI Yiyang, LI Xinping, GUO Yunhua, et al. Diaphragm wall stability based on pressure balance of slurry[J]. Soil Engineering and Foundation, 2021,35(4):482-486.

    [11]

    [11] 姜厚停,周秀普,李志强,等.厚卵石地层地下连续墙槽壁失稳机理及护壁泥浆性能研究[J].市政技术,2019,37(6):220-223.

    JIANG Houting, ZHOU Xiupu, LI Zhiqiang, et al. Study on instability mechanism of diaphragm wall and the performance of wall-protecting slurry in thick pebble formation[J]. Journal of Municipal Technology, 2019,37(6):220-223.

    [12]

    [12] 殷超凡,邓稀肥,王圣涛,等.地铁超深地下连续墙槽壁稳定性综合化数值仿真[J].地下空间与工程学报,2021,17(S1):312-320.

    YIN Chaofan, DENG Xifei, WANG Shengtao, et al. Trench stability analysis of ultra-deep diaphragm wall in the subway station through comprehensive numerical simulation[J]. Chinese Journal of Underground Space and Engineering, 2021,17(S1):312-320.

    [13]

    [13] 周忠群,张孟喜,王鑫,等.含双承压水地层中地连墙槽壁稳定性有限元分析[J].水力发电,2021,47(12):35-41.

    ZHOU Zhongqun, ZHANG Mengxi, WANG Xin, et al. Finite element analysis of trench stability of diaphragm wall in the formation with double confined water[J]. Water Power, 2021,47(12):35-41.

    [14]

    [14] 邱明明,杨果林,申权,等.深厚砂层地下连续墙槽壁稳定性特征及影响因素研究[J].铁道科学与工程学报,2020,17(5):1129-1139.

    QIU Mingming, YANG Guolin, SHEN Quan, et al. Study on characteristics and influence factors of slurry trench stability of diaphragm wall in deep sandy stratum[J]. Journal of Railway Science and Engineering, 2020,17(5):1129-1139.

    [15]

    [15] 石崇,张强,王盛年.颗粒流(PFC5.0)数值模拟技术及应用[M].北京:中国建筑工业出版社,2018.SHI Chong, ZHANG Qiang, WANG Shengnian. Numerical Simulation Technology and Application of Particle Flow (PFC5.0)[M]. Beijing: China Architecture & Building Press, 2018.

    [16]

    [16] 王宇.基于流固耦合理论的管涌侵蚀机理细观数值模拟[D].西安:西安理工大学,2020.WANG Yu. Numerical simulation of piping erosion mechanismbased on fluid-solid coupling theory[D]. Xi’an: Xi’an University of Technology, 2020.

    [17]

    [17] 王月明.隧道断层带土石混合体渗流特性研究[D].徐州:中国矿业大学,2020.WANG Yueming. Study on seepage characteristics of earth-rock mixture in tunnel fault zone[D]. Xuzhou: China University of Mining and Technology, 2020.

    [18]

    [18] 姜伟.渗流作用下盾构隧道端头土体的稳定性研究[D].烟台:鲁东大学,2019.JIANG Wei. Study on stability of soil at end of shield tunnel under seepage[D]. Yantai: Ludong University, 2019.

    [19]

    [19] 郑刚,戴轩,张晓双.地下工程漏水漏砂灾害发展过程的试验研究及数值模拟[J].岩石力学与工程学报,2014,33(12):2458-2471.

    ZHENG Gang, DAI Xuan, ZHANG Xiaoshuang. Experimental study and numerical simulation of leakingprocess of sand and water in underground engineering[J]. Chinese Journal of Rock Mechanics and Engineering, 2014,33(12):2458-2471.

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出版历程
收稿日期:  2022-07-02
修回日期:  2022-10-18

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