给水排水
給水排水
급수배수
2014年
8期
33-36
,共4页
环境保护%特大桥梁%桥梁排水%风险事故应急处置%尼洋河
環境保護%特大橋樑%橋樑排水%風險事故應急處置%尼洋河
배경보호%특대교량%교량배수%풍험사고응급처치%니양하
Environmental protection%Extra-large bridges%Bridge drainage%Emergency risk accident%Niyang River
以青藏高原林芝地区机场高速公路控制性工程曲古嘎玛尼洋河特大桥桥梁排水设计为例，探索出一种新的环保约束条件下特大桥桥梁排水设计方案，设计提出以管道排水为主、护栏侧面排水为辅的复合型排水方案，同时提出以超流溢水管解决主管水头过高导致支管逆向溢流问题的排水方案。方案的提出解决了特大桥梁设计过程中排水与环保要求之间的设计矛盾问题。
以青藏高原林芝地區機場高速公路控製性工程麯古嘎瑪尼洋河特大橋橋樑排水設計為例，探索齣一種新的環保約束條件下特大橋橋樑排水設計方案，設計提齣以管道排水為主、護欄側麵排水為輔的複閤型排水方案，同時提齣以超流溢水管解決主管水頭過高導緻支管逆嚮溢流問題的排水方案。方案的提齣解決瞭特大橋樑設計過程中排水與環保要求之間的設計矛盾問題。
이청장고원림지지구궤장고속공로공제성공정곡고알마니양하특대교교량배수설계위례，탐색출일충신적배보약속조건하특대교교량배수설계방안，설계제출이관도배수위주、호란측면배수위보적복합형배수방안，동시제출이초류일수관해결주관수두과고도치지관역향일류문제적배수방안。방안적제출해결료특대교량설계과정중배수여배보요구지간적설계모순문제。
Taking the drainage designs of the extra-large bridges on Niyang River (Qugu-Ga-ma)as examples,this paper studied a new solution for drainage design of extra-large bridges over sensitive waters.The design solution offered a combined drainage arrangement featured by a maj or drainage way of channel and an assistant way of the guardrail drainage.Meanwhile,it brought for-ward a drainage solution in which the ultra overflow pipes are applied to solve the problem of re-versed overflowing issue of the branch pipes due to the excessive height of the main pipe.This so-lution effectively solved the contradiction between the demands of drainage design for extra-large bridges and environmental concerns.It would be reference for the construction of this proj ect and other similar proj ects.
