论文部分内容阅读
广州抽水蓄能电站地下厂房埋藏深、跨度大、边墙高,布置在夹有蚀变岩的花岗岩体中。蚀变岩含蒙脱石,有遇水膨胀、崩解的特性。围岩支护的成功与否,直接关系到电站建设的成败。目前,厂房已正式投入运行一年多,从各种观察资料表明:围岩变形已基本稳定,地下厂房的喷锚支护是相当有效和成功的。本文主要结合厂房的工程地质特征,介绍相应的喷锚支护原则和支护参数。
The underground powerhouse of Guangzhou Pumped Storage Power Station is deep buried with large span and high side walls and is arranged in the granite body with altered rock. Altered rock containing montmorillonite, water swelling, disintegration characteristics. Success or failure of surrounding rock support is directly related to the success or failure of power station construction. At present, the plant has been officially put into operation more than a year, from a variety of observation data show that: surrounding rock deformation has been basically stable, underground plant spray anchor support is quite effective and successful. This paper mainly combined with the engineering geological characteristics of the plant, introduces the corresponding spray anchor support principle and support parameters.