摘要
针对西南山区公路桥梁的特殊气候条件和自然环境,分析山洪对公路桥梁的破坏机理,遵循结构力与山洪破坏力之间力的平衡与稳定原理,对桥梁在山洪作用下的破坏力进行理论推导,获得山洪破坏力公式的相关参数及有关规律性的结论,对公路桥梁抗洪措施具有指导性意义。
Aiming at special climatic conditions and natural environment around highway bridges in mountainous area in the southwest,this paper analyzes damage mechanism of mountain floods to highway bridges,carries out theoretical derivation for destructive power of mountain floods to bridges following the balancing and stabilizing principle between structural force and destructive power of mountain floods,and obtains the related parameters of formulae for destructive power of mountain floods and conclusions on regularity.This paper shows instructive significance for anti-flood measures of highway bridges.
出处
《公路交通技术》
2010年第6期88-93,共6页
Technology of Highway and Transport
关键词
山洪灾害
桥梁水毁
破坏力
理论推导
西南地区
mountain flood disaster
bridges damaged by flood
destructive power
theoretical derivation
southwest
