摘要
2022年9月5日四川泸定发生Ms6.8级地震,严重损坏区内公路交通线,严重阻碍居民出行和应急救援。以国道G662为例,依据灾后调查和治理,统计分析震后山区公路次生灾害类型和发育特征,并给出具体防治措施。结果表明:G662线路走廊带内共发育不良地质145处,其中滑坡(滑塌)46处,崩塌54处,危岩18处,泥石流16处;以“绕大治小”为原则,通过隧道绕避和棚洞防护等设施,能够有效提升强震山区公路承灾能力和韧性防灾。
On September 5,2022,a Ms6.8 earthquake occurred in Luding,Sichuan Province,which seriously damaged the highway traffic lines in the area and seriously hindered residents’travel and emergency rescue.Taking the national highway G662 as an example,according to the post-disaster investigation and management,the types and development characteristics of secondary disasters in mountainous highways after the earthquake are statistically analyzed,and specific prevention and control measures are given.The results show that there are 145 poor geological areas in the corridor zone of G662 line,including 46 landslides(collapses),54 collapses,18 dangerous rocks and 16 debris flows.Based on the principle of“around the big and governing the small,”the disaster-bearing capacity and resilience of highways in strong earthquake mountainous areas can be effectively improved through facilities such as tunnel avoidance and shed tunnel protection.
作者
刘太亮
马波
金鹏
何云勇
张乐
Liu Tailiang;Ma Bo;Jin Peng;He Yunyong;Zhang Le(Ya’an Communications Construction Group Project Management Co.,Ltd.,Ya’an Sichuan 625000,China;Sichuan Highway Planning,Survey,Design and Research Institute Ltd.,Chengdu Sichuan 610041,China;Ya’an Highway Emergency Rescue Center,Ya’an Sichuan 625000,China)
出处
《山西建筑》
2024年第16期128-130,173,共4页
Shanxi Architecture
基金
四川省交通运输科技项目(2024-ZL-06)。
关键词
公路
泸定地震
次生灾害
发育特征
灾害治理
highway
Luding earthquake
seconday disaster
growth characteristics
hazard control
