摘要
以商界高速公路何家园隧道为工程实例，介绍了覆土只有2．8～5m、地层为松散、破碎、强风化软弱围岩的山间暗挖隧道的施工方法，以及如何控制地表沉降、加强支护和爆破施工等关键技术。
Taking the project of Hejiayuan Tunnel in Shangjie Highway, this paper described the constructing method for underground excavation in mountainous tunnels, whose sheltered earth was only 2. 8 to 5 meters and stratum was incompact, fragmentized, highly weathered, and in weak rock region. Such techniques as how to control ground surface subsidence, timbering enhancing, and blasting construction were introduced.
出处
《交通与计算机》
2008年第3期130-132,共3页
Computer and Communications
关键词
超浅埋隧道
暗挖法
地表沉降
控制爆破
super-shallow buried tunnel
underground excavation method
ground surface subsidence
controlling blasting
