市政技术2025，Vol.43Issue(8)：70-76,7.DOI:10.19922/j.1009-7767.2025.08.070
地铁盾构隧道下穿房屋管片壁后回填注浆技术研究
Research on the Backfilling and Grouting Behind the Shaft Technology of the Subway Shield Tunnel Crossing the Buildings
黄德星1
作者信息
- 1. 厦门轨道建设发展集团有限公司,福建厦门 361000
- 折叠
摘要
Abstract
When the subway shield passes through the houses,it has high requirements for the control of surface settlement.Based on the Panguan section of Xiamen Metro Line 6 crosses the housing section,three kinds of syn-chronous grouting mix proportions in different strata were designed.The grouting pressure was calculated by Rank-ine earth pressure theory and Terzaghi loose earth pressure theory.The construction technology of synchronous grouting,secondary grouting,three times grouting and four times deep hole grouting was adopted.The grouting ef-fect was verified by the combination of mine detection scanning and synchronous grouting coring.The surface and house settlement were monitored.The results show that the optimal performance of the slurry can be achieved by the appropriate mix proportion of different strata;The calculation of grouting pressure should select appropriate theory according to the overburden thickness;The combination of multiple grouting process with the verification method can effectively control the segment leakage and ground settlement,so that the maximum value of ground settlement is 7.10 mm,and the maximum value of house settlement is 7.87 mm,both within the control range.The relevant re-search results can provide reference for similar shield tunneling projects.关键词
盾构隧道/下穿房屋/壁后注浆/配合比设计/浆液性能/深孔注浆Key words
shield tunnel/underpass the houses/back wall grouting/proportion design/slurry performance/deep hole grouting分类
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黄德星..地铁盾构隧道下穿房屋管片壁后回填注浆技术研究[J].市政技术,2025,43(8):70-76,7.
