三峡工程永久船闸人字门防火设计

三峡工程永久船闸是世界上规模最大的通航船闸。若过闸的油轮(驳)在永久船闸闸室内发生火灾，油品燃烧产生的高温会使船闸钢质人字门变形，甚至烧垮人字门，闸室的水倾泻而下，着火油轮(驳)顺水冲毁闸门，直接危及整线船闸的安全。由于国内外尚无关于船闸闸室人字门防火设计的消防规范，也无已建的相似工程可资借鉴，就三峡工程永久船闸人字门的几种防火措施进行了探讨。

The fire-prevention design for miter gates of the TGP''s permanent shiplock

The permanent shiplock of the Three Gorges Project(TGP) is the world's largest navigation shiplock. If the oil tanker catches fire in t he lock chamber, the great heat produced by the burning oil products will deform or even completely destroy the steel miter gates . As a result, with the water gushing out of the lock chamber, the burning tanker will float down and burst th e shiplock, thus endangering the whole shiplock. So far there are no specificati ons available at home and abroad for the fire-prevention design of the miter ga tes, nor can the project of the same kind be learned from. Therefore, this paper sets out to make a tentative research on how to protect the miter gates of the TGP's permanent shiplock from fire.