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» 摩天大楼害的?纽约建筑总重相当1.4亿头大象 持续下沉
摩天大楼害的?纽约建筑总重相当1.4亿头大象 持续下沉
文章来源: Next Apple 于
2023-05-19 15:00:25
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美国纽约高楼大厦林立,研究指这些大楼总重约7600亿公斤,相当于1.4亿头大象体重总合,可能造成纽约每年平均下沉1到2毫米,在气候变迁、海平面升高之下,增加淹水风险。
根据美国地质调查局(US Geological Survey)学者帕森(Tom
Parsons)领导的团队,发表于期刊《地球未来》的研究指出,“纽约市 840 万高度集中的人口,面临不同程度的洪水危害”。
纽约并不寂寞,学者说多数沿海或河岸城市,都面临相似问题:“建筑和人为造成的下沉、海平面上升、飓风强度增加等因素结合,在沿海、沿河地区加速了问题的发生。”
研究人员计算出纽约市包括知名帝国大厦、克莱斯勒大厦等巍峨建筑的总重量,约1.68兆磅(约7600亿公斤),相当于1.4亿头大象体重的总合。
这些巨型建筑许多耸立于坚硬地质如片岩上,不过也有一些建于相对柔软的黏土等地质上,帕森说:“愈软的地方会被下压得愈厉害。”
帕森强调:“不用现在就惊慌失措,这是一个渐进、持续增加风险的过程。盖摩天大楼不是错误,但每次你要兴建什么时,要记着,你同时把土地又再往下压了一点。”
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