白鹤滩水电站右岸地下厂房岩壁吊车梁补强加固设计

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英文篇名：Reinforcing Design of Rock-bolted Crane Beam in Underground Powerhouse of Right Bank of Baihetan Hydropower Station 作者：钱军 ; 邵兵 ; 陆健健 ; 万祥兵 ; 江亚丽 ; 陈建林 英文作者：QIAN Jun;SHAO Bin;LU Jian-jian;WAN Xiang-bing;JIANG Ya-li;CHEN Jian-lin;Powerchina Huadong Engineering Corporation Limited; 关键词：岩壁吊车梁 ; 现状基础 ; 补强加固 ; 高地应力区 ; 白鹤滩水电站 英文关键词：rock-bolted crane beam;;the basis of current status;;reinforcing;;high geo stress area;;Baihetan Hydropower Station 中文刊名：JJSL 英文刊名：Zhejiang Hydrotechnics 机构：中国电建集团华东勘测设计研究院有限公司水电工程院; 出版日期：2019-01-25 出版单位：浙江水利科技 年：2019 期：v.47;No.221 语种：中文; 页：JJSL201901009 页数：5 CN：01 ISSN：33-1162/TV 分类号：30-33+51

摘要

白鹤滩水电站右岸地下厂房采用1 000 MW立式水轮发电机,岩壁吊车梁承受的桥机荷载巨大。右岸地下厂房属高地应力区,地质构造发育,地质条件复杂,下游侧岩壁吊车梁开挖成型完整率低,岩台完全缺失比例达到60%以上。综合考虑地质条件、开挖现状、施工条件、后续围岩劣化等因素,提出了3类补强加固方案,并对补强结构的稳定性进行分析。有限元法和刚体平衡法计算结果表明,补强加固后的结构稳定性满足规范要求。
        The underground powerhouse in the right bank of Baihetan Hydropower Station uses 1 000 MW vertical hydro generator,and the load of the rock-bolted crane beam is huge. The underground powerhouse located in a high geo stress area of complex geological conditions,the complete rate of excavation of the rock-bolted crane beam at the downstream side is low,and the total missing ratio of rock table is over 60%. Considering the geological conditions,the construction conditions and the deterioration of the rock in the process of subsequent excavation,reinforcing measures on the basis of current status were selected. Both the finite element method and the rigid body balance method show that the structural stability after reinforcement is satisfied with the standard requirements.

引文

[1]水电水利规划设计总院.地下厂房岩壁吊车梁设计规范:NB/T35079—2016[S].北京:中国水利水电出版社,2016.
    [2]中国电力企业联合会.水电水利工程岩壁梁施工规程:DL/T5198—2013[S].北京:中国电力出版社,2013.
    [3]中水东北勘测设计研究院有限责任公司.水工建筑物地下开挖工程施工规范:SL 378—2007[S].北京:中国水利水电出版社,2007.