DENGZhang-tie,YANGSheng-hu,LIXi-ge,et al.Research and Application of Key Technology for Super Deep and Long Distance Pipe Jacking Butt Joint Construction[J].China Water & Wastewater,2023,39(2):125-132.
Research and Application of Key Technology for Super Deep and Long Distance Pipe Jacking Butt Joint Construction
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第2期
Page:
125-132
Column:
Date of publication:
2023-01-17
- Keywords:
- super deep and long distance; pipe jacking; butt joint; reverse pull; measurement correction
- Abstract:
- The sewage transmission system project in the core area of Dadong Lake in Wuhan is the longest and deepest primary pipe jacking project of small-diameter curved rock in China. In order to solve the problem that the long-distance curved pipe jacking cannot continue jacking under the conditions of ultra-deep and composite stratum, the reverse butt jacking construction technology is proposed to solve it. Combined with the project practice, the reverse butt jacking schemes are compared and selected. The key technologies of pipe jacking butt joint are analyzed and selected from the aspects of anti-jacking working well design, jacking force estimation, jacking and deviation correction, pipe jacking machine reverse pulling, pipe jacking construction survey and so on. The practical application results show that the reverse jacking butt joint construction is smooth, and the engineering problems are well solved.
Last Update:
2023-01-17