摘要
以西攀、攀田高速公路为试验线,建立了“汛期行车安全雨量警戒制”。在对沿线自然条件、线路状况和致灾特点进行分析的基础上,利用高速公路出入口作为分界点将沿线分为4个区段：黄联关-德昌-垭口-金江-田房。其中德昌-垭口段采用由前期降水和即时雨强组合控制的三级雨量警戒制,主要预防由于降雨诱发线路两旁的地质灾害发生而对行车造成的危害;垭口-金江段采用由能见度指标控制的三级雨量警戒制,主要预防降雨和线路双重不利条件下导致的行车交通灾害;位于线路两端的黄联关-德昌、金江-田房两段由于沿线易成灾的地质灾害点很少且线路条件也较好,按照国家或地方防汛管理办法执行汛期警戒。
Taking the Xichang-Panzhihua-Tianfang Expressway as the case line, the rainfall warning system is proposed. On the basis of analyzing the natural conditions, the line conditions and the characteristics of hazard along line, the expressway is divided into four warning sections by Huanglianguan, Dechang, Yakou, Jinjiang and Tianfang toll stations. The warning system in Dechang-Yakou section is separated into three grades by the control indexes of the daily rainfall amount and the ten minutes＂ rainfall amount, to prevent the road from geological disaster induced by rainfall; the warning system in Yakou-Jinjiang section is separated into three grades by the control index of visibility, to prevent the rode from transportation disaster on the two unfavorable conditions of rainfall and alignment; due to better alignment and lower dangerous geological hazard spots, national or local flood control rules are enough for the other two sections.
出处
《公路》
北大核心
2009年第3期82-86,共5页
Highway
基金
四川省交通厅项目
项目编号SC20060090
关键词
山区高速公路
汛期
行车安全
雨量警戒制
mountainous expressway
flood season
driving safety
rainfall warning system
