特大型地下厂房岩壁梁锚杆和混凝土施工关键技术

Anchor and concrete construction technology for crane girders anchored to rock face in extraordinary large-sized underground powerhouse

岩壁梁是一种新型结构,因而岩壁梁是地下厂房施工和运行的核心建筑物。岩壁梁锚杆和混凝土施工质量直接关系到岩壁梁的质量,对于施工技术和施工质量均要求极高,是地下厂房系统施工的重点和难点。瀑布沟水电站地下厂房岩壁梁锚杆和混凝土施工关键技术及质量控制经验的介绍,为同类工程提供了借鉴。

Crane girders anchored to rock face is a new structure and has become core structure for construction and operation of underground powerhouse. Construction quality of anchor and concreting is directly related to quality of crane girders so it is a key issue in construction of underground powerhouse as high construction quality is strictly required. The paper introduces experiences of key technology of crane girders and control of construction quality in Pubugou hydropower station to provide reference for similar projects.