復雜條件下盾構接收端加固與分體技術研究
  • 作者: 趙兵,孫海明
論文摘要

 

復雜條件下盾構接收端加固與分體技術研究

趙兵,孫海明

(中國聯合工程有限公司,浙江 杭州 310051)

[摘要]為解決復雜建設條件下,盾構分體接收難題,以杭州某地鐵區間蕭山機場站接收端頭的設計經驗為基礎,通過分析接收端工程控制節點,認為盾構接收需考慮接收端補強加固及盾構分體接收等問題,因此分別制定了相應的加固體補強措施及解決盾構洞內解體與拆解運輸等問題的方案,在加固體補強方面,對比了WSS,MJS等工法,推薦采取地下水平凍結的方式進行盾構接收端補強加固,對技術方案的可行性、加固范圍和將會產生的重難點問題進行了分析,給出了解決對策;在盾構解體接收問題上,給出了拆機前需落實措施、拆機準備和詳細的拆除方法及具體的24h不間斷作業的單線隧道3階段運輸方案。

[關鍵詞]地鐵;盾構;分體;加固;接收;拆解;運輸

[中圖分類號]U231+.3         [文獻標識碼]A         [文章編號]2097-0897(2021)23-0117-04

Study on Reinforcement and Dismantling Technology at Shield Reception End Under Complex Construction Conditions

ZHAO Bing, SUN Haiming

(China United Engineering Co.,Ltd.,Hangzhou, Zhejiang 310051, China)

Abstract: In order to solve the problem of shield dismantling reception under complex construction conditions, this paper is based on the design experience of the reception end of Xiaoshan Airport Station in a section of Hangzhou Subway. Through analysis of engineering control nodes of the reception end, the reinforcement of the reception end and dismantling reception of the shield machine should be considered. Therefore, the corresponding reinforcement measures and solutions for dismantling and transportation in the shield tunnel are formulated respectively.In the aspect of reinforcement, compared with WSS, MJS methods, the underground horizontal freezing method is recommended to reinforce the shield reception end. The feasibility of the technical scheme, the range of reinforcement and the key and difficult problems that will arise are analyzed, and the countermeasures are given. In the aspect of the shield receiving, the measures to be taken before dismantling, preparations for dismantling and detailed demolition methods and the specific 24-hour uninterrupted single-lane tunnel three-stage transportation plan are given.

Keywords: subways;shields;dismantling;reinforcement;reception;dismantling;transportation

[作者簡介]趙兵,工程師,Email:1061389898@qq.com

 

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