Volume 3, Issue 4, July 2018, Page: 53-57
Discussion of Type Selection and Design on Waterproof Curtainfor Deep-Foundation Pit in Neighbouring Huangpu River Area
Yang Jibao, Shanghai Municipal Engineering Design Institute (Group) Co. Ltd, Shanghai, China
Dong Linbing, Shanghai Municipal Engineering Design Institute (Group) Co. Ltd, Shanghai, China
Received: Aug. 13, 2018;       Accepted: Sep. 6, 2018;       Published: Oct. 13, 2018
DOI: 10.11648/j.ijnrem.20180304.12      View  243      Downloads  16
Abstract
Based on the distribution characteristics of burial depth and thickness of confined aquifers adjacent to the Huangpu River area, for the deep-foundation pits of two floors basement, the conventional tri-axial deep stirring pile is usually used to cut off the confined aquifer; for the deep-foundation pits of three floors basement or beyond, the burial depth and thickness of confined aquifer in each site are quite different, correspondingly, the selection and design of the waterproof curtain of the confined aquifer is relatively complicated. In order to induce engineering accidents due to the failure of the water curtain, the problem of confined water had to be studied and dealt seriously and scientifically. Based on the two engineering examples adjacent to the Huangpu River, this paper focuses on the complexity of the confined water problem of the deep-foundation pit projects in three floors basement or beyond, and the selection and design of the waterproof curtain.Different design schemes are recommended by discussing the economy and rationality of design schemes, evaluating construction feasibility and analyzing the complexity of construction quality control. The result of research shows that for the waterproof curtain of the deep-foundation pit in three floors underground or more, considering the large construction depth, the TRD method and the underground diaphragm wall are better.
Keywords
Deep-Foundation Pit,Waterproof Curtain,More Than Three Floors Underground,Adjacent to Huangpu River Area
To cite this article
Yang Jibao, Dong Linbing, Discussion of Type Selection and Design on Waterproof Curtainfor Deep-Foundation Pit in Neighbouring Huangpu River Area, International Journal of Natural Resource Ecology and Management. Vol. 3, No. 4, 2018, pp. 53-57. doi: 10.11648/j.ijnrem.20180304.12
Copyright
Copyright © 2018 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Reference
[1]
Weng Q P, Wang W D. Design and application of control of confined groundwater in deep foundation pits[J]. Chinese Journal of Geotechnical Engineering, 2008, 10 (S30): 343-348.
[2]
Dai B, Wang W D. Discussions on technologies of deep foundation pit projects affected by confined water[J].Chinese Journal of Geotechnical Engineering,2006, 11 (S28): 1659-1663.
[3]
Liu G B, Wang W D. Foundation pit engineering handbook (second edition) [M]. Beijing: China Architecture&Building Press, 2009.
[4]
Yang J B, Zhang C B, Gu Y P, et al. Analysis of the heave-piping stability of foundation pits based on a Monte-Carlo method[J].Shanghai Land &Resources, 2014, 35 (3): 78-81.
[5]
Yang X J, Jiang W H. Application of extra-deep tri-axial mixing pile water-stop curtain in deep excavation pit [J]. Underground Engineering and Tunnels, 2009, 1: 28-34.
[6]
Zhang Z X, Li X, Xie Z L, et al. Technology of ultra-deep tri-axial cement-soil mixed piles and its application in deep excavation [J]. Chinese Journal of Geotechnical Engineering, 2010, 32 (S2): 383-386.
[7]
Song Z J, Hua S H, You X C. Key problems and countermeasures for implementation of TRD construction method for deep and large foundation [J]. Building Construction, 2014, 12: 1325-1326.
[8]
Wu J M, Zhang G L.Application forms of TRD method in deep foundation excavation in soft soil [J]. 2014,13:23-26.
[9]
Wang W D, Di G E. Engineering practices of constant thickness steel cement-soil wall constructed by TRD method[J]. Chinese Journal of Geotechnical Engineering, 2012, 11 (S34): 628-633.
[10]
Huang X L, He Y, Zhan G H. analysis of the optimization of deep-foundation pit dewatering design and the effect of a waterproof curtain[J].Shanghai Land &Resources, 2014, 35 (2): 25-27.
Browse journals by subject