更有网友在微博贴出"雨中故宫"照,调侃去"故宫看海"。据称,虽然大雨如注,当日参观故宫的游客数量仍达3万多人(more than 30,000 tourists visited the Forbidden City that day despite of the heavy rain)。然而故宫官方对此回应称,由于故宫拥有较完善的排水系统(sound drainage system),故宫未见积水(free of flooding)。据一名故宫工作人员(a staff member of the Forbidden City)介绍,在短时大量降雨时,故宫确实可能出现局部积水情况,但得益于完善的排水设计,雨水能在20分钟内排掉(floods can be drained off in 20 minutes)。
故宫古建部专家介绍,故宫排水系统(drainage systems)分为三类,分别是建筑(buildings)、地表径流(surface runoff)、地下暗沟(under drains)。"建筑排水就是雨水落到建筑表面后,可以沿着琉璃瓦落到地面上(rain falls on the surface of the buildings and can further drop onto the ground along the glazed roof tiles)。"该专家称,之后水会沿着明沟流到暗沟沟口,还有一部分直接形成地表径流(form surface runoff)到暗沟,最终通过内金水河排出故宫。由于故宫的地面顺应北京地区西北高(higher elevations in the northwest)、东南低(lower elevations in the southeast)的走势,使积水能顺利排出(enable the smooth drainage of water)。
[相关词汇]
小雨 light rain
中雨 moderate rain
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