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首页> 外文会议>International Conference on Civil Engineering and Transportation >Hazards on Dujiangyan-Wenchuan Highways Induced by Catastrophic Debris Flows on July 10 2013 and Prevention
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Hazards on Dujiangyan-Wenchuan Highways Induced by Catastrophic Debris Flows on July 10 2013 and Prevention

机译：2013年7月10日灾难性碎片流动造成的都江堰 - 汶川高速公路及预防

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After the Wenchuan Earthquake on May 12 2008, the highways from Dujiangyan to Wenchuan, a crucial passage from Chengdu to Sichuan Western Plateau and Gansu province, are always seriously endangered by landslides, debris flows and their following hazards. Hundreds of debris flows from watersheds, gullies and slopes on July 10 2013 produced fatal hazards and destruction on the Highway G213 and the Express Highway from Yingxiu to Wenchuan. The debris flows are characterized by numerous-occurrence, large flux (645～2238m~3/s) and large magnitude (5～126×10~4m~3) as well as the hazard chain process which is composed of debris flow, dammed lake and outburst flood. The highways were seriously destructed and blocked in 16 sites, which were induced by 6 collapsed bridges, 3 submerged bridges, 3 buried tunnel entrances, 1 site collapsed highway base and 7 sites buried highway base or bridges, and the traffic was completely interrupted. Based on analyzing the destruction modes of highways, it was found that the large-scale and potential debris flows and the irrational location of some sections, vulnerable protection measures and low resistant capability of highways against debris flows were responsible for huge highway destructions. Considering the active debris flows in the future at least 5～10 years, it was strongly suggested that potential debris flow identification, integrated management of disastrous watershed, dangerous road line altering, increasing and strengthening protection constructions at dangerous section and improving highway reconstruction standard should be carried out for highway protection and traffic security.
机译：汶川地震2008年5月12日之后，从都江堰到汶川的高速公路，从成都到四川西部高原和甘肃省的一个重要通道，总是受到山体滑坡，碎片流动及其以下危害的严重危害。 2013年7月10日从流域，沟渠和斜坡上流出了数百件碎片流动，在高速公路G213和盈溪至汶川的高速公路上产生了致命的危险和破坏。碎片流动的特点是众多发生，磁通量大（645〜2238m〜3 / s）和大量大（5〜126×10〜4m〜3）以及由碎片流量组成的危险链过程，损坏湖和爆发洪水。高速公路被严重破坏并在16个地点封锁，由6个倒塌的桥梁，3个埋藏的桥梁，3个埋入的隧道入口，1个网站折叠公路基地，7个站点埋入公路底座或桥梁，交通完全中​​断。基于分析高速公路的破坏模式，发现大规模和潜在的碎片流量和某些部分的非理性位置，对碎片流量的高速公路的低道路的不合理位置是巨大的公路破坏。考虑到未来的活性碎片至少5〜10年，强烈建议潜在的碎片流动识别，灾害流域的综合管理，危险部分的危险路线改变，增加和加强保护结构，以及改善公路重建标准进行公路保护和交通保障。

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