高烈度艰险山区抢通阶段公路震害评价等级体系及处治技术研究

发布时间：2018-05-01 06:06

本文选题：高烈度艰险山区 + 抢通阶段　；参考：《公路》2016年10期

【摘要】：强震后,科学、快速地抢通高烈度艰险山区交通生命线是一个难点。以汶川地震灾区公路抢通工程为研究背景,对高烈度艰险山区公路震害评价等级体系及处治技术进行研究。根据公路震害的破坏特点、恢复难易程度,并结合公路抢通的原则、特点及目标,通过分别建立抢通阶段桥梁、隧道及路基震害的评价等级,最终建立了抢通阶段公路震害评价等级体系。公路A、B级震害不需处治;C级震害处治技术为:桥梁半幅限行,隧道及路基采用除危、清方;D级震害处治技术为:桥梁临时支撑或限位、桥上架桥,隧道喷混凝土或安设型钢钢架临时支护,除危、清方,岩石松动爆破;E级震害处治技术为:埋设涵管、设置槽渡、搭设便桥、硐室定向爆破及便道绕避。
[Abstract]:After strong earthquake, it is a difficult point to seize the transportation lifeline of high intensity and dangerous mountain area scientifically and quickly. With the background of highway rescue project in Wenchuan earthquake area, the evaluation grade system and treatment technology of highway earthquake damage in high intensity mountain area are studied. According to the damage characteristics of highway earthquake damage, the degree of recovery is easy, and combined with the principles, characteristics and objectives of highway robbery, the evaluation grade of earthquake damage of bridge, tunnel and roadbed is established separately. Finally, the evaluation grade system of highway earthquake damage is established. The measures to deal with the earthquake damage of the Agna B earthquake are as follows: the bridge is limited by half amplitude, the tunnel and subgrade are treated by danger removal, and the treatment technology of the earthquake damage of the Qing Fang and D magnitude is: temporary support or limit of bridge, bridge erection on the bridge, The temporary support of shotcreting concrete or steel frame in the tunnel, removing danger, clearing the square and loosening rock blasting are as follows: buried culvert pipe, groove crossing, construction of stool bridge, chamber directional blasting and sidewalk avoidance.
【作者单位】：北方工业大学土木工程学院;四川高速公路建设开发总公司;
【基金】：国家自然科学基金,项目编号51408008、51478277 国家十二五科技支撑项目,项目编号2012BAK09B06 北方工业大学青年拔尖人才培育计划,项目编号XN131
【分类号】：U492.8;U418

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