摘要
乌东德右岸地下主厂房岩锚梁部位存在层面附碳质薄膜区、弱溶蚀风化段、小夹角层面及长大结构面等地质缺陷,不良地质段较为普遍,岩锚梁成型困难,施工难度大。文中详细介绍了对层面附碳质薄膜区及小夹角等不良地质段部位岩锚梁的开挖手段,通过一系列的优化锚固手段,确保岩锚梁在不良地质段的成型质量,创立了工程品牌,为以后类似工程提供实例和施工经验。
The rock anchor beam position of main underground powerhouse in the right bank of Wudongde power station has some geological defects,such as layer attached carbon thin film area,weak corrosion weathering section,small included Angle layer and large structure surface.Bad geological section is more common,rock anchor beam forming and constructing are difficulties.This paper introduces in detail the excavation measures of rock anchor beam in the bad geological section such as the area with carbon film and small included angle,and ensures the forming quality of rock anchor beam in the bad geological section through a series of optimized anchorage measures,providing example and construction experience for similar projects in the future.
出处
《东北水利水电》
2020年第3期12-15,I0001,共5页
Water Resources & Hydropower of Northeast China
关键词
主厂房
不良地质段
岩锚梁
开挖
main powerhouse
bad geological section
rock anchor beam
excavation
