settlement 沉降

settlement
繁：沉降
简：沉降

根據人工島島隧結合部（島頭區）的工程情況，為減少沉管隧道上部荷載及控制不均勻沉降，防浪墻採用了直立式空心沉箱護岸結構，沉箱外側護岸採用了潛堤。護岸扭工字塊從南北兩側由外向內逐步過渡為潛堤，主要作用是防止船舶誤闖發生碰撞，從而保護沈管隧道安全。

【港珠澳大橋】管理局：扭工字塊「隨機安放」有訣竅　非隨意安放（2018年4月7日）。HK 01，取自 https://www.hk01.com/%E7%A4%BE%E6%9C%83%E6%96%B0%E8%81%9E/175809/%E6%B8%AF%E7%8F%A0%E6%BE%B3%E5%A4%A7%E6%A9%8B-%E7%AE%A1%E7%90%86%E5%B1%80-%E6%89%AD%E5%B7%A5%E5%AD%97%E5%A1%8A-%E9%9A%A8%E6%A9%9F%E5%AE%89%E6%94%BE-%E6%9C%89%E8%A8%A3%E7%AB%85-%E9%9D%9E%E9%9A%A8%E6%84%8F%E5%AE%89%E6%94%BE

“It could be a problem of uneven settlement of the artificial island,” he added, noting that if that was the case, the tunnel could be at risk. However, he believed the island was not immediately at risk.

Safety concerns over artificial island at mega Hong Kong-Zhuhai-Macau bridge dismissed. (2018, April 5). South China Morning Post. Retrieved from http://www.scmp.com/news/hong-kong/politics/article/2140330/safety-concerns-over-artificial-island-mega-hong-kong-zhuhai