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首页> 外文会议>World Road Association;International winter road congress >A DEVICE FOR PREVENTIVE TRIGGERING OF AVALANCHES ON AN INTERNATIONAL AXIS
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A DEVICE FOR PREVENTIVE TRIGGERING OF AVALANCHES ON AN INTERNATIONAL AXIS

机译：一种国际轴上雪崩的预防性触发装置

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The Direction Interdépartementale des Routes Sud-Ouest (DIR Sud-Ouest) manages 950km of national roads in the south-west of France.The DIR Sud-Ouest is in particular responsible for the winter maintenance of the axis E9Amsterdam-Barcelona when crossing of the Pyrenees (RN 20, which rises to 1550 m), andof the french access to the Principality of Andorra (RN22, which culminates at 2100m).It also ensures the winter service of the RN 320 via the Puymorens pass (1920 m) and theRN 116 between Perpignan and Bourg-Madame (Spanish border).In such an environment, the route of the road crosses zones impacted by corridors ofrecurring avalanches.Rather than to undergo the risk, the DIR Sud-Ouest opted for a device which consists inprovoking preventively snowslides, in sprays or massively, before their potential volumereaches a threshold which would impact significantly the road.The device set up by the DIR, under the authority of the prefectures of Ariège andPyrénées-Orientales, and with the support of the referent state services (RTM) within theframework of an agreement, is formalized by three plans of intervention for triggeringavalanche (Plans d'Intervention pour le Déclenchement d'Avalanche : PIDA).It concerns five avalanche corridors equipped with means of artificial triggering andoverhanging the national roads of the mountain sector.
机译：南部路线国际公路局（DIR Sud-Ouest）管理着法国西南部950公里的国道，特别是在穿越E9Amsterdam-Barcelona公路时，它负责E9Amsterdam-Barcelona轴线的冬季维护。比利牛斯山脉（RN 20，上升到1550 m），法国进入安道尔公国（RN22，最高达到2100m）。它还确保通过Puymorens通行证（1920 m）和RN为RN 320提供冬季服务在佩皮尼昂（Pepignan）和布尔格-马达（Bourg-Madame）（西班牙边境）之间的116号公路。在这种环境下，道路的路线越过受反复崩塌的走廊影响的区域。 DIR在Ariège和Pyrénées-Orientales州的授权下并由DIR设立的装置协议框架内的参照国服务（RTM）的rt通过三个触发雪崩的干预计划（Plans d'Intervention pour leDéclenchementd'Avalanche：PIDA）正式确定。它涉及五个配备了人工触发手段的雪崩走廊。并越过山区的国道。

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