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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 950rnkm of national roads in the south-west of France.rnThe DIR Sud-Ouest is in particular responsible for the winter maintenance of the axis E9rnAmsterdam-Barcelona when crossing of the Pyrenees (RN 20, which rises to 1550 m), andrnof the french access to the Principality of Andorra (RN22, which culminates at 2100m).rnIt also ensures the winter service of the RN 320 via the Puymorens pass (1920 m) and thernRN 116 between Perpignan and Bourg-Madame (Spanish border).rnIn such an environment, the route of the road crosses zones impacted by corridors ofrnrecurring avalanches.rnRather than to undergo the risk, the DIR Sud-Ouest opted for a device which consists inrnprovoking preventively snowslides, in sprays or massively, before their potential volumernreaches a threshold which would impact significantly the road.rnThe device set up by the DIR, under the authority of the prefectures of Ariège andrnPyrénées-Orientales, and with the support of the referent state services (RTM) within thernframework of an agreement, is formalized by three plans of intervention for triggeringrnavalanche (Plans d'Intervention pour le Déclenchement d'Avalanche : PIDA).rnIt concerns five avalanche corridors equipped with means of artificial triggering andrnoverhanging the national roads of the mountain sector.
机译:路线南际公路部(DIR Sud-Ouest)管理着法国西南部950公里的国道。rnDIR Sud-Ouest特别负责穿越E9rnAmsterdam-Barcelona轴的冬季维护。比利牛斯山脉(RN 20,上升到1550 m),和法国进入安道尔公国(RN22,最高达到2100m)。rn它还确保通过Puymorens通行证(1920 m)和theRNRN进行RN 320的冬季服务。在佩皮尼昂(Pepignan)和布尔格-马达(Bourg-Madame)(西班牙边境)之间的116。在这种环境下,道路的路线越过受雪崩回廊影响的区域。rnDIR Sud-Ouest并未冒险,而是选择了一种预防性发火的装置在潜在滑坡达到可能严重影响道路的阈值之前,以喷雾状或大雪状滑坡。rnDIR在阿里格省和比利牛斯-奥里州的授权下建立的装置ntales并在协议框架内得到推荐国家服务(RTM)的支持下,通过三个触发lanavalanche的干预计划(Plans d'Intervention pour leDéclenchementd'Avalanche:PIDA)正式确定。它涉及五个配备的雪崩走廊通过人工触发和悬空山区的国道。

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