山区公路排水系统抗水灾评价指标  

Evaluation indices of anti-flood for mountain highway drainage system

作　　者：沈波[1] 艾翠玲[2] 

机构地区：[1]长安大学特殊地区公路工程教育部重点实验室 [2]福州大学土木工程学院,福建福州350002

出　　处：《长安大学学报（自然科学版）》2008年第4期11-16,共6页Journal of Chang’an University(Natural Science Edition)

基　　金：国家西部交通建设科技项目(200131881234)

摘　　要：为提高山区公路抗水灾能力,对山区公路排水设施水毁现象进行了调查,并做了机理分析,研究了山区公路排水系统3个子系统单元(坡面漫流单元、排水沟渠单元和小桥涵单元)的组成,建立了山区公路排水系统抗水灾4个递进层次系统(孕灾环境危险性评价、排水系统易损性及完善性评价、水毁经济损失评价、防治效益经济评价)的评价体系,提出了相关经济计算与评价标准。实际应用结果表明,该评价指标体系对山区公路抗水灾养护决策具有明显的指导作用。To enhance the anti-flood capacity of mountain highway, the flood damage of highway drainage facilities at mountain is investigated, the damage mechanism is analyzed, the compositions of the drainage system, named slope rain boundless unit, drainage canals unit and little bridge-culvert unit, are studied. The evaluating indices system about the anti-flood ability of the drainage system is developed. The indices include the evaluation of environmental disaster, the evaluation of the damage of drainage systems, the evaluation of economic losses, the evaluation of the benefits of anti-flood facilities. The relevant economic calculation and the evaluation standards are put forward. The application results show that this indices system has an obvious guiding role for the decision-making in mountain highway＇s anti-flood. 11 tabs, 8 refs.

关 键 词：道路工程 山区公路 排水系统 水灾 评价指标 

分 类 号：U412.62[交通运输工程—道路与铁道工程]