摘要
2009年8月6日晚23时30分,雅安市汉源县顺河乡境内大渡河左岸猴子岩山嘴突然崩滑,堵断大渡河达4.5h,形成长十余公里的堰塞湖,使省道S306中断。8月7日作者随四川省国土资源厅组织的专家组赶赴现场进行应急调查与临灾处置。实地踏勘结合三维激光扫描成果综合分析,圈定了崩塌体残余危岩区的范围,提出了利用危岩体拉裂缝实施分步排危的方案,8日19时10分根据该排危方案成功地实施了第一爆,消除了近1万m3的危岩体(A区),为S306线新线猴子岩段的复工、老线的恢复奠定了基础。
A large rock fall in Houziyan, Shunhe, Hanyuan happened on 23：30 pro, August 6, 2009, completely damming Daduhe River for 4.5 hours, forming a ten kilometer long dammed reservoir and inundating road s306. Sichuan Bureau of land and mineral resources invited expert group headed by Prof. Huang Runqiu to have a field investigation on August 7. Based on the analysis of the topography, texture of the slope and induced factors and with help of Laser scanning, the expert group provided a scheme for removing risk rockmass step by step, No. A rock block about 10000 m3 was successfully removed by exploding at 19 ： 10 of August 8, which provide a base for new s306 and recovery of the old s306.
出处
《工程地质学报》
CSCD
北大核心
2009年第4期445-448,共4页
Journal of Engineering Geology
关键词
大渡河
汉源猴子岩
崩滑堰塞
应急调查
排危措施
Daduhe river, Houziyan of Hanyuan, Rock fall damming, Urgent investigation, Scheme of removing risk rockmass
