隧道二次衬砌施工缝钢木组合端头模板研制及应用

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英文篇名：Development and Application of the Steel-Wood Combined End Formwork for Construction Joints of Tunnel Secondary Lining 作者：万利 ; 周磊生 ; 孙昌海 英文作者：WAN Li;ZHOU Leisheng;SUN Changhai;Shandong Provincial Communications Planning and Design Institute;Construction & Management Branch of Qilu Transportation Development Group Co.Ltd.; 关键词：山岭隧道 ; 二次衬砌 ; 施工缝 ; 钢木组合端头模板 ; 止水带 英文关键词：Mountain tunnel;;Secondary lining;;Construction joint;;Steel-wood combined end formwork;;Water stop 中文刊名：XDSD 英文刊名：Modern Tunnelling Technology 机构：山东省交通规划设计院;齐鲁交通发展集团有限公司建设管理分公司; 出版日期：2019-06-15 出版单位：现代隧道技术 年：2019 期：v.56;No.386 语种：中文; 页：XDSD201903033 页数：6 CN：03 ISSN：51-1600/U 分类号：206-211

摘要

山岭隧道二次衬砌施工缝渗漏水与隧道施工工艺和施工质量密切相关。为解决传统衬砌台车堵头模板存在的施工缺陷,提高二次衬砌施工缝质量以及更好、更快捷地安装止水带,文章以济南二环路隧道工程为背景,对模板台车端头木模进行了改进,研制出了一种新型钢木组合式端头模板。该模板在浇筑二次衬砌时可为外露的半幅止水带提供弯起空间,并且取消了止水带固定筋与定位筋,避免了止水带受损,节约了安装成本,提高了二次衬砌施工缝防水质量;其节段化设计方便了端头模板的加工、安装与拆卸,大大提高了施工速度与施工质量。
        Water leakage of construction joints of secondary lining of the mountain tunnels is closely related to the construction technology and quality of tunnels.In light of the construction defects of end formwork of traditional lining jumbo and improving the quality of construction joint of secondary lining as well as speeding up installation of water stop,improvement was conducted to end wood formwork,and a steel-wood combined end formwork was developed based on a tunnel on the second ring road of Jinan city.With this type of formwork,it offers a space for bending of exposed half-range water stop,eliminates the fixing and positioning bars to avoid damaging of water stop,saves installation cost during construction of secondary lining,improves water resistance of construction joints of secondary lining;its segmental design option facilitates processing,installation and demoulding of the end formwork,and significantly improves the construction speed and quality.

引文

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