摘要
沪昆高铁贵昆段沙坡特大桥线路左侧多处危岩落石对大桥构成一定威胁。本文在对区域地质环境和危岩体结构特征的调查的基础上,利用无人机航拍技术,查明了沙坡双线特大桥左侧山坡坡顶裂缝及围岩体的分布,研究了该处危岩落石体的形成的机制,并提出了采用梯形垛反压、清方、灌浆以及局部支挡的防治措施,取得了良好的经济效益,同时保障了沪昆客专安全、有序运营。
A number of dangerous rock-body Pose a threat to the Shapo super large bridge of Shanghai-Kunming Passenger Special Line. The study Show that the special dual structure, dissolution of the joint surface and good surface is the mechanism of formation of dangerous rock-body based on the survey of the regional geological environment and the characteristics of dan- gerous rock-body. To guarantee the safety of Shanghai-Kunming passenger dedicated line operation, pressing foot and grouting and retaining measures has been adapt and obtained the good economic benefits.
出处
《地质灾害与环境保护》
2017年第1期44-48,共5页
Journal of Geological Hazards and Environment Preservation
关键词
沪昆客专
沙坡特大桥
危岩落石
防治措施
形成机制
Shanghai-Kunming passenger dedicated line
Shapo super large bridge
Rockfall
Prevention Measures
Forma tion Mechanism
