- 摘 要
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（1 上海電力設(shè)計院有限公司， 上海 200025;2 中國建筑科學(xué)研究院有限公司地基基礎(chǔ)研究所， 北京 100013）
［摘要］以北京市某電力隧道工程項目為例，研究了隧道在開挖過程中如何保證鄰近高壓鐵塔安全的技術(shù)方案，給出了加強(qiáng)隧道初襯結(jié)構(gòu)、袖閥管跟蹤注漿、隔離樁保護(hù)三個方案，并對以上方案進(jìn)行了詳細(xì)分析與介紹，最終采用加強(qiáng)隧道初襯結(jié)構(gòu)與隔離樁保護(hù)相結(jié)合的方案。通過運(yùn)用PLAXIS 2D有限元軟件，分析了設(shè)置隔離樁后，隧道開挖對高壓鐵塔的基礎(chǔ)影響，并結(jié)合現(xiàn)場監(jiān)測數(shù)據(jù)，驗證了所采取的技術(shù)方案能夠滿足工程需要、保證工程安全。
［關(guān)鍵詞］電力隧道；高壓鐵塔；初襯結(jié)構(gòu)；隔離樁；袖閥管；注漿
中圖分類號：TU354， TU93文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2021)03-0138-06
Technical research and analysis on shallow-buried electric power tunnel passing alongside high voltage iron tower
HAN Chunlong1, LI Xiangyu2
（1 Shanghai Electric Power Design Institute Co., Ltd., Shanghai 200025, China;2 Institute of Foundation Engineering, China Academy of Building Research, Beijing 100013, China）
Abstract:Taking an electric power tunnel project in Beijing as an example, the technical scheme of how to ensure the safety of the near high voltage iron tower in the tunnel excavation was studied, three schemes of strengthening the initial lining structure of tunnel, sleeve valve pipe tracking grouting and isolation pile protection can be selected, the above schemes were analyzed and introduced in detail. Finally, the scheme to strengthen initial lining structure of tunnel combined with the on-site protection of isolation pile was adopted. Through the use of PLAXIS 2D finite element software, the influence of tunnel excavation on the foundation of high voltage iron tower was analyzed after installation of the isolation pile. Combining with the on-site monitoring data, it is verified that the adopted technical scheme can meet the needs of the project and ensure the safety of the project.
Keywords:electric power tunnel;high voltage iron tower;initial lining structure;isolation pile;sleeve valve pipe;grouting
作者簡介：韓春龍，碩士，工程師，Email：510227720@qq.com;通信作者:李翔宇，博士，高級工程師，Email：47463718@qq.com。
