市政技术2024，Vol.42Issue(9)：146-151,6.DOI:10.19922/j.1009-7767.2024.09.146
半盖挖法下地铁盾构始发平移施工技术研究
Research on the Technology of Metro Shield Launching & Translation by Semi-cover Excavation Method
摘要
Abstract
Semi-covered excavation method is one of the commonly construction techniques for subway station pit construction,which can effectively ensure the normal passage of ground traffic.But at the same time,it also causes the difficulty of shield launching.Relying on the construction of Yanshan Interchange East Station of Jinan Metro Line 4 in Shandong Province,the lifting & taken down the shaft,shield assembly and underground translation and other links of the shield and other large-scale equipment are analyzed;The construction steps of shield lifting and translation are summarized.The technical points of the laying and arrangement of the translation track are deter-mined.The force and bearing capacity of the translation bracket and the jacking cylinder are calculated.At the same time,risk factors are analyzed.The countermeasures are proposed in case of fall of shield machine from height dur-ing lifting,overturning of shield structure or mechanical injuries during translation.The proposed schme is of refer-ence significance for similar large-diameter shield launching construction.关键词
地铁/半盖挖法/盾构始发/盾构机吊装/盾构机平移Key words
metro/half-cover excavation method/shield launching/shield machine lifting/shield machine translation分类
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于继光..半盖挖法下地铁盾构始发平移施工技术研究[J].市政技术,2024,42(9):146-151,6.基金项目
中铁十八局集团有限公司2022年度科研创新项目(C2022-051) （C2022-051）
中国铁建股份有限公司2022年度科技研究开发计划及资助课题(2022-C1) （2022-C1）
