ISSN 2096-4498
CN 44-1745/U
Tunnel Construction ›› 2015, Vol. 35 ›› Issue (7): 727-732.DOI: 10.3973/j.issn.1672-741X.2015.07.018
Previous Articles Next Articles
WU Yingning
Received:
Revised:
Online:
Published:
Abstract:
The northwest entrance/exit passage tunnel of Guloudajie station on Line 2 of Beijing Metro is constructed by cutandcover method. However, due to the conflict between the completed passage tunnel and the existing sewage pipe line, the passage tunnel has to be lowered. Waterproofing curtain is installed between the piles of the opencut passage tunnel and the floor base of the passage tunnel is consolidated by means of jet grouting piles, which ensures the safety of the foundation pit during the renovation. The waterproofing scheme is optimized and the joint is well treated, which ensures the waterproofing effect of the works.
Key words: Beijing Metro, entrance/exit, embedding depth, waterproofing curtain, floor base consolidation, transition between existing waterproofing structure and new waterproofing structure, joint treatment
CLC Number:
U 45
WU Yingning. Key Technologies for Lowering of Structure of Entrance/exit Passage Tunnel of Metro Works Located in Waterrich Conditions[J]. Tunnel Construction, 2015, 35(7): 727-732.
0 / / Recommend
Add to citation manager EndNote|Ris|BibTeX
URL: http://www.suidaojs.com/EN/10.3973/j.issn.1672-741X.2015.07.018
http://www.suidaojs.com/EN/Y2015/V35/I7/727