[1]罗远煜.复杂环境隧道穿越强富水地层施工技术研究[J].高速铁路技术,2023,14(06):106-110.[doi:10.12098/j.issn.1674-8247.2023.06.020]
 LUO Yuanyu.A Study on Construction Technology of Tunnel Crossing Strong Water-rich Stratum in the Complex Environment[J].HIGH SPEED RAILWAY TECHNOLOGY,2023,14(06):106-110.[doi:10.12098/j.issn.1674-8247.2023.06.020]
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复杂环境隧道穿越强富水地层施工技术研究()
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《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]

卷:
14卷
期数:
2023年06期
页码:
106-110
栏目:
施工技术
出版日期:
2023-12-30

文章信息/Info

Title:
A Study on Construction Technology of Tunnel Crossing Strong Water-rich Stratum in the Complex Environment
文章编号:
1674-8247(2023)06-0106-05
作者:
罗远煜
中铁十六局集团第四工程有限公司,北京101400
Author(s):
LUO Yuanyu
The Fourth Engineering Co. ,Ltd. ,of China Railway 16th Bureau Group Corporation Limited ,Beijing 101400 , China
关键词:
富水施工安全超前引水开挖围岩变形
Keywords:
water-richconstruction safetyadvanced diversionexcavationsurrounding rock deformation
分类号:
U455.4
DOI:
10.12098/j.issn.1674-8247.2023.06.020
文献标志码:
A
摘要:
太锡铁路和平隧道穿越断层破碎带,岩性接触带岩体破碎,侵入构造、断裂构造发育,围岩稳定性极差,且为强富水带,极易发生涌水突泥,施工安全风险高。为保证开挖进度和施工安全,穿越富水地层施工时,采用隧道地震勘探TSP及地质雷达等技术超前分析隧道围岩情况,为掌子面开挖提供技术及安全指导,采取超前引水措施,克服出水量大以及长斜井反坡排水等施工难题,实现洞内无水作业。穿越强富水地层隧道施工采用三台阶七步开挖法,该技术运用超前、径向堵水技术,有效地控制了围岩变形施工难题,为今后富水地段隧道施工提供了借鉴。
Abstract:
Heping Tunnel of Taizicheng-Xilinhot Railway passes through the fault fracture zone. The rock mass in the lithological contact zone is broken,and the intrusive structure and fault structure are developed. The rock has extremely poor stability,and it is a strong water-rich zone,which is prone to water gushing and mud bursts,so the construction safety risk is high. To ensure excavation progress and construction safety while crossing water-rich strata,tunnel seismic exploration techniques such as TSP and geological radar were used to analyze the surrounding rock conditions in advance. This provided technical and safety guidance for tunnel face excavation and allowed for advanced diversion measures to be taken. These measures helped overcome construction difficulties,including dealing with large water yields and reverse slope drainage of long inclined shafts,and enabled waterless operations within the tunnel. The three-bench seven-step excavation method was adopted for the construction of tunnels crossing strong water-rich strata. This technology includes advanced and radial water plugging to effectively control the deformation of surrounding rock,which provides a reference for future tunnel construction in water-rich sections.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2022-07-08
作者简介:罗远煜(1990-),男,工程师。
更新日期/Last Update: 2023-12-30