向家坝水电站大型地下厂房洞室群施工和监测

发布时间：2018-07-10 01:22

本文选题：岩石力学 + 向家坝水电站　；参考：《岩石力学与工程学报》2011年04期

【摘要】：金沙江向家坝水电站地下厂房规模庞大,具有结构尺寸大、地质条件复杂、支护工程量大、施工干扰大等特点。通过大量的科研设计,确定地下洞室群尤其是主厂房的施工程序和支护参数。在施工过程中采用精细化管理对施工进行严格控制,建立设计、科研、施工一体化的实时监测动态分析反馈系统。开挖结束后,主厂房围岩变形趋于稳定,顶拱最大变形13.36 mm,边墙最大变形6.74 mm,均小于设计计算值(顶拱最大位移20.4 mm、边墙最大位移62.5 mm),并小于国内同类工程。总结向家坝水电站大型地下厂房洞室群施工实践中形成的设计、施工和项目管理原则和程序,对类似工程具有指导和借鉴作用。
[Abstract]:The underground powerhouse of Xiangjiaba Hydropower Station in Jinsha River is large in scale, large in structure size, complex in geological conditions, large in support engineering and large in construction interference. Through a great deal of scientific research and design, the construction procedure and supporting parameters of underground cavern group, especially the main powerhouse, are determined. In the process of construction, fine management is used to strictly control the construction, and a real-time dynamic analysis feedback system is established, which integrates design, scientific research and construction. After excavation, the surrounding rock deformation of the main powerhouse tends to be stable, the maximum deformation of the top arch is 13.36 mm, the maximum deformation of the side wall is 6.74 mm, which is less than the design calculation value (the maximum displacement of the top arch is 20.4 mm, the maximum displacement of the side wall is 62.5 mm), and is smaller than that of similar projects in China. The design, construction and project management principles and procedures formed in the construction practice of the large underground powerhouse group of Xiangjiaba Hydropower Station are summarized, which can be used as guidance and reference for similar projects.
【作者单位】：中国长江三峡集团公司;
【分类号】：TV554

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