Journal of Jilin University(Earth Science Edition) ›› 2016, Vol. 46 ›› Issue (1): 295-302.doi: 10.13278/j.cnki.jjuese.201601307

Previous Articles    

Leakage Detection in Waterproof Curtain of Soft Soil Foundation Pit

Meng Qingsheng1, Han Kai1, Liu Tao1, Gao Zhen2   

  1. 1. College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, Shandong, China;
    2. Shandong Province Inv. & Surv. Institute of Urb. & Rur. Construction, Jinan 250031, China
  • Received:2015-04-20 Online:2016-01-26 Published:2016-01-26
  • Supported by:

    Supported by the Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education Development Fund Project (KLE-TJGE-B1107) and the National Natural Science Fund Project (41202204)

PDF (PC)

458

Abstract:

The leakage of waterproof curtain is a serious problem for the stability of soft soil foundation pit. In respect of the leakage detection methods of waterproof curtain, the numerical simulation and indoor physical model test were performed to verify the ability to determine the leakage position of the three different arrays of 3D resistivity methods and GPR method, and to discuss the anomaly characteristics in detecting profile. At the same time, the judgment of whether the waterproof curtain leak or not and the interpretation method of leakage position were also made. The research shows that:the resistivity method can reflect the existence of leakage position effectively by Wenner array, dipole-dipole array, and Wenner-Schlumberger array; it reveals high resistivity of soil inside foundation pit compared with that of outside the foundation pit without leakage of waterproof curtain; on the contrary, the resistivity will decrease at the bottom of saturation soil inside foundation pit, and it will increase outside the foundation pit and presents the funnel-shaped anomaly with leakage of waterproof curtain; using the cross point among the low resistivity anomalies and the curtain, we can also find the leakage position of waterproof curtain; in addition, there will show a hyperbolic reflection events in GPR detection profile after leakage of waterproof curtain, and we can also determine the leakage position through the vertex of the hyperbolic reflection. The results proved the feasibility of these two kinds of geophysical methods to carry out the leakage detection of waterproof curtain for soft soil foundation pit.

Key words: soft soil foundation pit, waterproof curtain, leakage detection, resistivity, GPR

CLC Number: 

  • P631.3

[1] 张玉成, 杨光华, 钟志辉, 等. 软土基坑设计若干关键问题探讨及基坑设计实例应用分析[J]. 岩石力学与工程学报, 2012, 31(11):2334-2343. Zhang Yucheng, Yang Guanghua, Zhong Zhihui, et al. Discussion on Some Key Problems in Soft Soil Foundation Pit Design and Application Analysis of Design Examples[J]. Chinese Journal of Rock Mechanics and Engineering, 2012, 31(11):2334-2343.

[2] 唐军. 临海复杂砂层的基坑支护隔水帷幕设计与实践[J]. 岩土工程学报, 2012, 33(增刊):548-551. Tang Jun. Design and Construction of Water-Sealing Curtain in Deep Excavations in Sand Layer Adjacent to Sea[J]. Chinese Journal of Geotechnical Engineering, 2012, 33(Sup.):548-551.

[3] 杨光华. 广东深基坑支护工程的发展及新挑战[J]. 岩石力学与工程学报, 2012, 31(11):2276-2284. Yang Guanghua. Development and New Challenges of Deep Excavation Supporting Engineering in Guangdong Province[J]. Chinese Journal of Rock Mechanics and Engineering, 2012, 31(11):2276-2284.

[4] 尹盛斌, 丁红岩. 软土基坑开挖引起的坑外地表沉降预测数值分析[J]. 岩土力学, 2012, 33(4):1210-1216. Yin Shengbin, Ding Hongyan. Numerical Analysis of Estimation of Ground Surface Settlement Outside Pit Induced by Soft-Soil Excavation[J]. Rock and Soil Mechanics, 2012, 33(4):1210-1216.

[5] 卫凌云, 秦胜伍, 陈慧娥. 基坑开挖对单桩及群桩回弹位移的影响分析[J]. 吉林大学学报(地球科学版),2014, 44(2):584-590. Wei Lingyun, Qin Shengwu, Chen Huie. Analysis on Rebounding Displacement of Single Pile and Pile Group Under Excavation[J]. Journal of Jilin University (Earth Science Edition), 2014,44(2):584-590.

[6] 刘爱娟, 李整建, 刘太平. 基坑止水帷幕优化设计探讨[J]. 工程勘察, 2011(12):20-24. Liu Aijuan, Li Zhengjian, Liu Taiping. Discussion on Optimization Design of Water Sealing Curtain in Foundation Pit[J]. Geotechnical Investigation & Surveying, 2011(12):20-24.

[7] 张云. 搅拌桩止水帷幕的应用研究[D]. 北京:中国地质大学, 2010. Zhang Yun. Mix Spray Application of Waterproof Curtain Piles[D]. Beijing:China University of Geoscience, 2010.

[8] 吴长盛. 北大港水库堤坝裂缝检测与评定技术研究[J]. 水利水电技术, 2001, 32(5):61-63. Wu Changsheng. Technology Study of Dam Crack Detection and Evaluation in Beidagang Reservoir[J]. Water Resources and Hydropower Engineering, 2001, 32(5):61-63.

[9] 郭铁柱. 高密度电法在崇青水库坝基渗漏勘查中的应用[J]. 北京水利, 2001(2):39-40. Guo Tiezhu. Application of High-Density Resistance Method in Dam Foundation of Chongqing Reservoir Seepage Exploration[J]. Beijing Water Resources, 2001(2):39-40.

[10] 朱德兵, 任青文. 垂直防渗墙横剖面电阻率数值与物理模拟研究[J]. 河海大学学报(自然科学版), 2004, 32(4):410-414. Zhu Debing, Ren Qingwen. Numerical and Physical Simulation of Resistivity of Transverse Profiles of Vertical Cut-off Walls[J]. Journal of Hohai University (Natural Sciences), 2004, 32(4):410-414.

[11] 王士鹏. 高密度电法在水文地质和工程地质中的应用[J]. 水文地质工程地质, 2000, 27(1):52-55. Wang Shipeng. Application of High-Density Electrical Method in Hydrogeology and Engineering Geology[J]. Hydrogeology and Engineering Geology, 2000, 27(1):52-55.

[12] 王传雷, 董浩斌, 刘占永. 物探技术在监测堤坝隐患上的应用[J]. 物探与化探, 2001, 25(4):294-299. Wang Chuanlei, Dong Haobin, Liu Zhanyong. An Investigation into Monitoring and Forewarning Technique for Dyke Ridden Trouble Under Condition of High Water Level[J]. Geophysical & Geochemical Exploration, 2001, 25(4):294-299.

[13] 高镇. 软土地区基坑隔水帷幕渗漏隐患地球物理检测技术研究[D]. 青岛:中国海洋大学, 2013. Gao Zhen. Geophysical Detection Technology Research of Waterproof Curtain Leakage Hidden Trouble of Foundation Pit in Soft Soil Area[D]. Qingdao:Ocean University of China, 2013.
[1] Li Changyu, Ma Guixia, Hao Guang, Xu Liang. Effect on Temperature Field of Subgrade Cold Resistive Layer in Seasonal Frost Region [J]. Journal of Jilin University(Earth Science Edition), 2018, 48(4): 1174-1181.
[2] Feng Xuan, Liang Shuaishuai, Enhedelihai Nilot, Zhang Minghe, Dong Zejun, Zhou Haoqiu, Qi Jiahui, Zhao Weichang. Classification and Recognition Technology of Underground Pipelines with Full Polarimetric GPR [J]. Journal of Jilin University(Earth Science Edition), 2018, 48(2): 364-372.
[3] Wang Wentian, Liu Sixin, Lu Qi, Li Hongqing, Fu Lei. 3D Imaging Algorithm of Directional Borehole Radar Based on Improved Residual Method [J]. Journal of Jilin University(Earth Science Edition), 2018, 48(2): 402-410.
[4] Ning Yaling, Xu Jiashu, Xie Tao, Zhang Guoling, Lu Jun. Analysis on Deep-Well Apparent Resistivity Measurement at Dabaishe Seismic Station [J]. Journal of Jilin University(Earth Science Edition), 2018, 48(2): 525-533.
[5] Weng Aihua, Li Sirui, Yang Yue, Li Dajun, Li Jianping, Li Shiwen. Basic Principle, Current Status and Prospect of Magnetometric Resistivity [J]. Journal of Jilin University(Earth Science Edition), 2017, 47(6): 1838-1854.
[6] Zeng Zhaofa, Li Wenben, Xi Jianjun, Huang Ling, Wang Zhejiang. Inverse Direction Imaging Method of Array Type GPR Based on DOA Estimation [J]. Journal of Jilin University(Earth Science Edition), 2017, 47(4): 1308-1318.
[7] Xi Jianjun, Zeng Zhaofa, Huang Ling, Cui Dandan, Wang Zhejiang. Characteristics of the Signal Polarization Field in Array Type Ground Penetrating Radar [J]. Journal of Jilin University(Earth Science Edition), 2017, 47(2): 633-644.
[8] JiangYanjiao, Sun Jianmeng, Gao Jianshen, Shao Weizhi, Chi Xiurong, Chai Xiyuan. Numerical Simulation of Mud Invasion Around the Borehole in Low Permeability Reservoir and a Method for Array Induction Log Resistivity Correction [J]. Journal of Jilin University(Earth Science Edition), 2017, 47(1): 265-278.
[9] Gao Jianshen, Sun Jianmeng, Jiang Yanjiao, Cui Likai. Effect of Electrode Array Structures in Laterolog and a New Array Measurement Method [J]. Journal of Jilin University(Earth Science Edition), 2016, 46(6): 1874-1883.
[10] Li Shiwen, Yin Changchun, Weng Aihua. Full-Time Inversion of Time-Domain AEM Data for Resistivity and Magnetic Permeability [J]. Journal of Jilin University(Earth Science Edition), 2016, 46(6): 1830-1836.
[11] Wu Jian, Hu Xiangyang, Liang Yunan, Tang Di, Zheng Xiangwei. Evaluation Method of Saturation in Low Resistivity Reservoir in the Pearl River Estuary Basin [J]. Journal of Jilin University(Earth Science Edition), 2015, 45(1): 312-319.
[12] Zhang Zhongqing, Pang Bingqiang. A Novel Approach for Electromagnetic Logging While Drilling Data Processing [J]. Journal of Jilin University(Earth Science Edition), 2014, 44(5): 1720-1726.
[13] Yang Haiyan, Deng Juzhi, Tang Hongzhi, Lin Yun. Translation Algorithm of Data Interpretation Technique in Full-Space Transient Electromagnetic Method [J]. Journal of Jilin University(Earth Science Edition), 2014, 44(3): 1012-1017.
[14] Song Yanjie, Jiang Yanjiao, Song Yang, Zhang Yini. Experimental on the Influencing Factors of m and n of Low Resistivity Oil Reservoirs in Southern Gulong Area [J]. Journal of Jilin University(Earth Science Edition), 2014, 44(2): 704-714.
[15] Yang Zhen，Yang Jinzhou，Han Laiju. Numerical Simulation and Application of Azimuthal Propagation Resistivity Imaging While Drilling [J]. Journal of Jilin University(Earth Science Edition), 2013, 43(6): 2035-2043.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
Copyright © Journal of Jilin University(Earth Science Edition), All Rights Reserved.
Tel: +86-431-88502374；13756165364　E-mail: xuebao1956@jlu.edu.cn
Powered by Beijing Magtech Co. Ltd