YANGRui,ZENG De-xing,CUIXu-hui.Research on Key Techniques for Backward Construction of Large Diameter Pipe Jacking under a Lake[J].China Water & Wastewater,2024,40(6):126-131.
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Research on Key Techniques for Backward Construction of Large Diameter Pipe Jacking under a Lake

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第40卷 Number: 第6期 Page: 126-131 Column: Date of publication: 2024-03-17
Author(s):
YANG　Rui1; 2; 3;  ZENG De-xing1; 2; 3;  CUI　Xu-hui1; 2; 3
（1. CCCC Second Harbour Engineering Co. Ltd.， Wuhan 430040， China； 2. Key Laboratory of Large-span Bridge Construction Technology， Wuhan 430040， China； 3. Research and Development Center of Transport Industry of Intelligent Manufacturing Technologies of Transport Infrastructure， Wuhan 430040， China）
Keywords:
pipe jacking;  obstacle;  backward construction;  secondary jacking
Abstract:
Pipe jacking technology is widely used in the development of underground space due to its advantages of easy construction, no interruption of overground traffic, no noise and no environmental pollution, etc. However, in the actual pipe jacking construction, it is inevitable to encounter obstacles that cannot be removed, causing the problem of inability to continue jacking. This paper proposes a convenient and efficient method for withdrawing large diameter pipe jacking, based on the pipe jacking project of tailwater discharge river in Tangxun Lake WWTP in Wuhan, specifying the process of pipe withdrawing and summarizing the key technologies in the construction process, as well as setting the design preparation for secondary jacking. The actual engineering results show that the method is suitable for large diameter pipe jacking and can solve the problem of large diameter pipe jacking with high resistance and insufficient counter-thrust, thus effectively improving the efficiency of pipe jacking and reducing construction costs.
Last Update: 2024-03-17