超大异形断面调压井开挖施工技术研究

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英文篇名：Research on Excavation Construction Technology of Surge Shaft in Super Large Profiled Section 作者：李佳 英文作者：LI Jia;Sinohydro Bureau 5 Co.,Ltd.; 关键词：超大异形断面调压井 ; 开挖 ; 施工技术 ; 研究 英文关键词：super large profiled section surge shaft;;excavation;;construction technology;;research 中文刊名：价值工程 英文刊名：Value Engineering 机构：中国水利水电第五工程局有限公司; 出版日期：2019-11-08 出版单位：价值工程 年：2019 期：31 语种：中文; 页：155-157 页数：3 CN：13-1085/N ISSN：1006-4311 分类号：TV554

摘要

赞比亚下卡富峡水电站项目位于卡富埃河上,调压井位于引水洞末端,阻抗式调压井,开挖井深133.2m,开挖直径36m,衬砌后直径32m,为超大异形断面调压井。其整体地质情况较差,施工质量控制难度及安全风险较大,通过对现场施工顺序、各不同施工部位爆破参数确认、提升系统的设计及现场安全监测研究,保证了施工进度、提高了现场施工质量,实现了施工期间安全生产零伤亡事故指标。
        The Lower Kafuxia Hydropower Project is located on the Kafue River of Zambia. The surge tank is located at the end of the diversion tunnel and is an impedance-type surge well. The excavation depth is 133.2 m, the excavation diameter is 36 m, and the diameter after lining is 32 m, which is a super-large profile section surge shaft. The overall geological conditions are poor, the construction quality control difficulty and safety risks are large. Through the on-site construction sequence, the blasting parameters confirmation of different construction parts, the design of the lifting system and the on-site safety monitoring research, the construction progress is improved and the site construction quality is improved, realizing zero casualty accident during construction.

引文

[1]蒋德军.位于陡壁上大断面黄土隧道进洞施工技术[J].价值工程，2019,38(22):146-148.
    [2]张征.富水粉细砂层隧道全断面水平旋喷超前预加固施工技术研究[J].价值工程，2019,38(12):86-90.
    [3]尚宝江.浅谈静力爆破在浅埋大断面隧道双侧壁导坑法下穿高速公路施工中的应用[J].价值工程，2018,37(32):126-128.