ISSN 2096-4498
CN 44-1745/U
Tunnel Construction ›› 2018, Vol. 38 ›› Issue (12): 2032-2039.DOI: 10.3973/j.issn.2096-4498.2018.12.016
Previous Articles Next Articles
ZHOU Zhonghe, WANG Junpeng
Received:
Revised:
Online:
Published:
Abstract:
In order to avoid the disadvantages of existing connection mode of pipe jacking segments, effectively improve the segment connection construction efficiency, and reduce the risk and environmental pollution, a progressive tensioning technology of Macalloy bar used in the corners of segments of T221 Large Crosssection Rectangular Pipe Jacking Tunnel at Havelock Station on Thomson East Coast Line in Singapore is introduced. The results show that: (1) The tensioning technology of Macalloy bar is suitable for the connection of large crosssectional rectangular pipe jacking segment. (2) The new grouting cement and grouting equipment are used in the posttensioning process, which is an improvement for traditional tensioning technology. (3) The posttensioning technology is easily operated with low risk and can effectively enhance the overall stability of the tunnel and avoid air pollution, noise pollution and light pollution.
Key words: rectangular pipe jacking, tunnel, Macalloy bar, segment connection, tensioning technology
CLC Number:
U 45
ZHOU Zhonghe, WANG Junpeng. Progressive Construction Technology for Corner Connection of Large Crosssection Rectangular Pipe Jacking Segment[J]. Tunnel Construction, 2018, 38(12): 2032-2039.
0 / / Recommend
Add to citation manager EndNote|Ris|BibTeX
URL: http://www.suidaojs.com/EN/10.3973/j.issn.2096-4498.2018.12.016
http://www.suidaojs.com/EN/Y2018/V38/I12/2032
Key Technologies of Cutterhead Configuration and Cutter Replacement for Large diameter Shield under High Water Pressure
Experimental Effect Prediction of Ground Conditioning of Water rich Sandy Stratum Based on BP Neural Network
Fullscale Experimental Study on Bending Performance of Segmental Joints of Large Crosssection Shield Tunnel under Pure Compressive Bending Condition
Study on Optimization of Emergency Rescue Station of Yuntunbao Tunnel on ChengduLanzhou Railway
Launching and Receiving Technology of Large Crosssection Horseshoeshaped Shield Used in Baicheng Tunnel
Design and Analysis of a New TBM Propulsion System with Small Turning Radius
Study on Key Technologies and Application of Engineering Big Data Management Platform of Tunnel Boring Machine