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隧道建设(中英文) ›› 2018, Vol. 38 ›› Issue (S2): 292-297.DOI: 10.3973/j.issn.2096-4498.2018.S2.039

• 施工技术 • 上一篇    下一篇

狭小空间条件下盾构分体始发施工技术研究

卜星玮, 曾波存*, 万飞明, 杜鹏, 全自洋, 王林涛   

  1. (中交第二航务工程局有限公司, 湖北 武汉 430040)
  • 收稿日期:2018-03-26 修回日期:2018-11-23 出版日期:2018-12-30 发布日期:2019-01-30
  • 作者简介:卜星玮(1977—),男,湖南益阳人,2001年毕业于长沙理工大学,土木工程专业,本科,高级工程师,主要从事道路、桥梁、隧道等土木工程施工和管理工作。Email: 653063873@qq.com。*通信作者: 曾波存, Email: 296617295@qq.com。

Study of Construction Technology of Separate Launching of Shield under Narrow and Small Space

BO Xingwei, ZENG Bocun*, WAN Feiming, DU Peng, QUAN Ziyang, WANG Lintao   

  1. (CCCC Second Harbour Engineering Company Ltd., Wuhan 430040, Hubei, China)
  • Received:2018-03-26 Revised:2018-11-23 Online:2018-12-30 Published:2019-01-30

摘要:

为解决武汉江夏清水入江项目八分山片排水改造工程盾构隧道始发井空间狭小、无法按常规始发施工技术进行盾构设备组装、始发掘进施工的难题,通过对工程水文地质、始发井及隧道结构进行分析研究,并对盾构附属设施、负环结构、出渣系统等进行改造,增加临时推进装置,提出一种分部组装与分部推进相结合的分体始发施工技术,可解决始发空间小、盾构组装、始发与设备材料垂直运输、人员进出困难的问题,始发施工过程安全、顺利,地面沉降符合要求,说明采取的分体始发技术实施效果良好。

关键词: 狭小空间, 土压盾构, 盾构隧道, 改造, 分体始发

Abstract:

In the BafenshanDrainage Reconstruction of Wuhan JiangxiaClear River Discharge Project, due to the narrow and small space of the launch shaft of shield tunnel, shield tunneling equipment assembly and launch tunneling can not be carried on by adopting conventional launching construction technology. In order to solve such problem, the engineering hydrogeology, launchshaft and tunnel structure are analyzed and studied. Some parts of the shield such as subsidiary facilities, temporary ringand slag discharging systemare modified. Temporary propulsion devices are added.Finally a kind of separate construction technology with the combination of partial assembly and partial propulsion is proposed.The construction technique can solve the problems of limited launching space, shield assembly, launching and equipment parts vertical transportation, personal access and so on.The launching process is safe and smooth and the ground settlement meets the requirements, indicating that the effect of the separate launching technology is good.

Key words: narrow and small space, earth pressure balance shield, shield tunnel, modify, separate launching

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