摘要
2022年9月5日,四川泸定发生6.8级地震,公路沿线诱发了大量的地质灾害,造成多处公路损坏或断道,极大地影响了抗震救灾工作。快速摸清震区公路网的受损情况和抢通保通难度,对震后救援至关重要。为此,对震区公路受损情况进行调查,会同地方交通部门完成公路的抢通保通任务。调查发现了507处受损点,公路灾害以崩塌滑坡为主,占总灾害的90%以上。公路灾害具有数量多、规模小、连片分布的特点,公路震害与地震烈度正相关,与断层距离、河流距离负相关。在不利因子组合下,公路震害程度明显加剧,局部位置的公路受损率可达到92.5%。在抢通保通阶段,利用龙头石及大岗山电站的库区水运资源,快速建立5处码头,建立起通往震中的生命通道,让应急队伍快速进入灾区,让伤员第一时间运送出来;灾后交通网的重建充分利用水运资源,不追求道路等级与路线指标,公路重建以提高公路的抗灾能力及韧性为目标。
On September 5th,2022,an earthquake with magnitude 6.8 happened in Luding,Sichuan Province,which caused severe geological disasters and brought heavy workload for rescue.It was urgent to find out the damaged roads in the disaster-hit area and assess the difficulty of rescue work.Multiple damaged roads were investigated and 507 damaged points were found.Characterized by large number,small scale,and continuous distribution,landslides and collapse accounted for more than 90% of the total damage.The severity of highway damage was positively correlated with the seismic intensity,while it was negatively correlated with the distance from fault zones and rivers.Under the combination of adverse impact,the degree of disasters on high way significantly increased.In some regions,even 92.5% roads were damaged.During the road reopening and recovery,a strategy of using the water transport resources in the reservoir area of Longtoushi and Dagangshan Hydropower Station to quickly establish five wharves and a green pathway to the epicenter was proposed.The reconstruction of the transportation network made full use of the water way instead of focusing on the road grade and indicator,aiming to improve the road resistance to natural disasters.
作者
赵飞
朱明
李杰
徐益飞
但晨
肖怡
邱瑞成
ZHAO Fei;ZHU Ming;LI Jie;XU Yifei;DAN Chen;XIAO Yi;QIU Ruicheng(State Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu University of Technology,Chengdu 610059,P.R.China;Sichuan Communication Surveying&Design Institute Co.,Ltd.,Chengdu 610017,P.R.China;BIM Research&Development Center,Ministry of Transport,Chengdu 610017,P.R.China)
出处
《土木与环境工程学报（中英文）》
CSCD
北大核心
2024年第3期216-226,共11页
Journal of Civil and Environmental Engineering
基金
国家自然科学基金(41877273)
四川省科技计划(23NSFSC4969)
四川交通院科技项目(232021001)。
关键词
公路工程
泸定地震
同震灾害
抢通保通
公路受损率
highway engineering
Luding Earthquake
coseismic hazard
emergent transport recovery
highway damage rate
