摘要
分析了双江口水电站深埋隧道区的高地应力及地下水等因素对隧道岩爆的影响,加强对围岩变形和岩爆监控,降低围岩表层温度,提前释放岩石应力,采用水胀式锚杆、快速支护围岩,对预防岩爆的发生有较好的效果。
The influence of high crustal stress and underground water pressure on rock-burst in the deep-lying tunnel of Shuangjiangkou Hydropower Station is analyzed.The preventive measures adopted for rock-burst are： enhancing monitoring on surrounding rock deformation and rock-burst;reducing the surface ground temperature;releasing the rock stresses in advance;supporting the excavated section with hydraulic expansion bolts as soon as possible.
出处
《水电与新能源》
2010年第3期58-59,共2页
Hydropower and New Energy
关键词
隧道开挖
岩爆
预防措施
双江口水电站
tunnel excavation
rock-burst
preventive measures
Shuangjiangkou Hydropower Station
