蒲石河蓄能电站地下厂房开挖卸荷变形及锚杆应力特性分析
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摘要
蒲石河抽水蓄能电站地下厂房采用喷钢纤维混凝土、系统锚杆及锚索等组合而成的柔性支护体系,厂房高边墙因开挖卸荷作用,产生变形。通过大量原型观测数据,结合岩体内部变形及岩体应力作用理论,分析了地下洞室高边墙围岩变形及加固锚杆应力的特性。
The flexible support system which is composed of steel fiber shot concrete,system anchor and anchor wire and so on is used in underground powerhouse of Pushihe pumped storage power station.The deformation of hill slope wall is caused by excavation unloading.The paper analyzes the characteristics of hill slope surrounding rock deformation and reinforced anchor stress for underground powerhouse through a lot of prototype observation data and combined with the theory of the inner deformation and the stress for the rock.
引文
[1]二滩水电开发有限责任公司.岩土工程安全监测手册[M].北京:中国水利水电出版社,1999.
    [2]黄仁福,吴铭江.地下洞室原为观测[M].北京:水利水电出版社,1990.
    [3]岳振西.地下工程锚固技术-论变形量与支护的关系[A].锚固工程协会.岩土工程中的锚固技术[C].北京:地震出版社,1992.

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