4/6/2025, 4:18:13 PM 星期日
Development of trench side protection slurry for diaphragm walls in sandy gravel and boulder layers
CSTR:
Author:
Affiliation:

1.Chengdu Hydroelectricity Construction Engineering Co., Ltd of Sinohydro Bureau No.7 Company,Chengdu Shichun 611130, China;2.State Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu University of Technology, Chengdu Shichun 610059, China

Clc Number:

TU473

  • Article
  • | |
  • Metrics
  • |
  • Reference [23]
  • |
  • Related
  • | | |
  • Comments
    Abstract:

    The traditional bentonite mud can hardly meet the engineering requirements because of serious slurry leakage, frequent trench side collapse, and highly increased construction cost. On the basis of theoretical analysis, experimental research was carried out to develop a new type of trench side protection mud by comprehensive modification of natural clay mud to solve the problem of trench side collapse in sand, gravel, and boulder layers. The basic modifier CN-1 was determined through the optimization test to improve its suspension stability. On this basis, the adhesive lifting agent (CG-14S) and the cooperative plugging agent (DFD-2) were further obtained through optimization to improve its comprehensive performance index. The optimized formula was determined by orthogonal test, and the performance and cost evaluation was carried out. Field tests were conducted, and a modified clay mud for trench side protection was finally developed. It is made up of 15% natural clay+0.2%CN-1+0.4‰CG-14S+0.5‰DFD-2, and can be used in the construction of the diaphragm wall in gravel and boulder layers. The research results provide an option for solving the problem of trench side collapse in the construction of the diaphragm wall in complex strata.

    Reference
    [1] 邵晨晨.复杂地质条件和敏感环境中基坑设计实践及关键技术[J].钻探工程,2021,48(6):102-108.SHAO Chenchen. Design practice and key technology for the foundation pit in complex geology and sensitive environments[J]. Drilling Engineering, 2021,48(6):102-108.
    [2] 肖冬顺,马明,项洋.水利水电钻探技术进展及发展趋势[J].钻探工程,2021,48(1):103-111.XIAO Dongshun, MA Ming, XIANG Yang. Progress and development trend of water conservancy and hydropower drilling technology[J]. Drilling Engineering, 2021,48(1):103-111.
    [3] 宣庐峻,周杰鑫.格型地连墙在超深船坞坞墙结构中的应用[J].水运工程,2022(3):177-184.XUAN Lujun, ZHOU Jiexin. Aplication of lattice diaphragm wall in ultra-deep dock wall structure[J]. Port & Waterway Engineering, 2022(3):177-184.
    [4] 许有俊,李泽升,李文博.深基坑多道内支撑式地连墙嵌固比分析[J].武汉大学学报(工学版),2020,53(9):779-786.XU Youjun, LI Zesheng, LI Wenbo. Analysis of the insertion ratio of multichannel brace-type underground diaphragm wall in deep foundation pit[J]. Engineering Journal of Wuhan University, 2020,53(9):779-786.
    [5] 徐永刚,魏子龙,周冠南,等.地下连续墙成槽施工参数对槽壁稳定的影响研究[J].岩石力学与工程学报,2011,30(S2):3464-3470.XU Yonggang, WEI Zilong, ZHOU Guannan, et al. Analysis of stability of slurry trench sides of diaphragm wall based on construction parameters[J]. Chinese Journal of Rock Mechanics and Engineering, 2011,30(S2):3464-3470.
    [6] 马章历,杨东河,王国伟,等.地下连续墙用方形锤头的设计及应用[J].钻探工程,2021,48(7):98-103.MA Zhangli, YANG Donghe, WANG Guowei, et al. Design and application of the square diaphragm wall chisel[J]. Drilling Engineering, 2021,48(7):98-103.
    [7] 夏元友,裴尧尧,王智德,等.地下连续墙泥浆槽壁稳定性评价的水平条分法[J].岩土工程学报,2013,35(6):1128-1133.XIA Yuanyou, PEI Yaoyao, WANG Zhide, et al. Horizontal slice method for stability of slurry trench[J]. Chinese Journal of Geotechnical Engineering, 2013,35(6):1128-1133.
    [8] 杨武厂.天津地区超深地下连续墙成槽关键技术[J].地下空间与工程学报,2016,12(S1):291-295,301.YANG Wuchang. Key technologies of diaphragm wall trenching construction in Tianjin area[J]. Chinese Journal of Underground Space and Engineering, 2016,12(S1):291-295,301.
    [9] 杜志云,冯庆元.复杂地质条件下超深地下连续墙槽壁稳定性分析[J].地下空间与工程学报,2020,16(S2):856-863.DU Zhiyun, FENG Qingyuan. Extra-deep diaphragm wall trench stabilities analysis under multiply geological ground condition[J]. Chinese Journal of Underground Space and Engineering, 2020,16(S2):856-863.
    [10] 黄茂松,王鸿宇,谭廷震,等.地下连续墙成槽整体稳定性的工程评价方法[J].岩土工程学报,2021,43(5):795-803.HUANG Maosong, WANG Hongyu, TAN Tingzhen, et al. Engineering evaluation method for overall stability of slurry trenches[J]. Chinese Journal of Geotechnical Engineering, 2021,43(5):795-803.
    [11] 祝强,沈伟梁.深层高承压水粉砂地层超深地下连续墙成槽坍塌机理分析[J].施工技术,2021,50(7):49-53.ZHU Qiang, SHEN Weiliang. Mechanism analysis of trench collapse of ultra-deep diaphragm wall in deep and high-pressure water silt stratum[J]. Construction Technology, 2021,50(7):49-53.
    [12] 欧明喜,戴志峰,陈颖辉,等.地下连续墙粘性土夹砂层槽壁稳定性分析[J].防灾减灾工程学报,2020,40(4):537-542.Mingxi OU, DAI Zhifeng, CHEN Yinghui, et al. Trench stability analysis of diaphragm wall in cohesive soil sand-wiched sand[J]. Journal of Disaster Prevention and Mitigation Engineering, 2020,40(4):537-542.
    [13] 乔亚飞,唐洁,顾贇,等.超深地连墙槽壁侧压力演变模式及其施工扰动分析[J].岩土力学,2022,43(4):1083-1092,1102.QIAO Yafei, TANG Jie, GU Yun, et al. Evolution mode of lateral pressure on the trench wall and disturbance analysis during construction of super-deep diaphragm wall[J]. Rock and Soil Mechanics, 2022,43(4):1083-1092,1102.
    [14] 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.
    [15] 何福军,郭志明,丁贵松.北京地铁京顺路站地下连续墙施工技术措施[J].建筑技术,2017,48(6):623-625.HE Fujun, GUO Zhiming, DING Guisong. Diaphragm wall construction techniques and measures in Beijing subway Jingshunlu station project[J]. Architecture Technology, 2017,48(6):623-625.
    [16] 袁浩峦,李云涛.海域围堰上软下硬地层中地下连续墙施工技术研究与实践[J].隧道建设(中英文),2017,37(S2):254-259.YUAN Haoluan, LI Yuntao. Study and application of construction technology of underground diaphragm wall to upper-soft lower-hard strata of sea cofferdam[J]. Tunnel Construction, 2017,37(S2):254-259.
    [17] 赵民,乌效鸣,吴迪,等.超深地下连续墙护壁泥浆优化[J].施工技术,2016,45(19):20-22,26.ZHAO Min, WU Xiaoming, WU Di, et al. Cement slurry optimization of ultra-deep diaphragm wall[J]. Construction Technology, 2016,45(19):20-22,26.
    [18] 卢伟.“上软下硬”复合地层地连墙快速成槽施工关键技术研究[J].铁道科学与工程学报,2020,17(1):174-180.LU Wei. Study on key construction techniques of diaphragm wall in upper-soft lower-hard strata [J]. Journal of Railway Science and Engineering, 2020,17(1):174-180.
    [19] 胡新贵.富水粉细砂地层中护壁泥浆材料配比的优化[J].科学技术与工程,2021,21(29):12758-12764.HU Xingui. Optimization of slurry material for wall protection in silty fine sand with generous water[J]. Science Technology and Engineering, 2021,21(29):12758-12764.
    [20] 刘国山,朱连臣,汪正斌,等.搅拌桩固壁技术在淤泥质地层地下连续墙施工中的应用[J].铁道建筑,2020,60(10):111-115.LIU Guoshan, ZHU Lianchen, WANG Zhengbin, et al. Application of mixing pile reinforcing slot wall technology in construction of underground diaphragm wall in muddy stratum[J]. Railway Engineering, 2020,60(10):111-115.
    [21] 陈先智,徐代明,徐赞.聚合物泥浆在超深地下连续墙施工中的应用[J].都市快轨交通,2019,32(6):86-91.CHEN Xianzhi, XU Daiming, XU Zan. Application of polymer slurry in construction of ultra-deep underground diaphragm wall[J]. Urban Rapid Rail Transit, 2019,32(6):86-91.
    [22] 卞书军,李明,阳德伟.化学聚合物泥浆与膨胀土矿物泥浆在旋挖钻孔桩施工中的应用对比[J].隧道建设,2015(S1):65-68.BIAN Shujun, LI Ming, YANG Dewei. Application of chemical polymer slurry and bentonite slurry in construction of rotary drilling bored piles[J]. Tunnel Construction, 2015(S1): 65-68.
    [23] 许涛,邓利平,冉华,等.一种用于地下连续墙施工的泥浆及其制备方法:CN106866056A[P].2017.XU Tao, DENG Liping, RAN Hua, et al. The invention discloses mud used for underground continuous wall construction and a preparation method thereof: CN106866056A[P]. 2017.
    Related
    Cited by
    Comments
    Comments
    分享到微博
    Submit
Get Citation
Share
Article Metrics
  • Abstract:643
  • PDF: 688
  • HTML: 966
  • Cited by: 0
History
  • Received:June 28,2022
  • Revised:October 20,2022
  • Adopted:November 10,2022
  • Online: April 10,2023
  • Published: March 10,2023
Article QR Code