“烟大海底隧道”设计全长123公里,远超日本青函海底隧道(54公里)和英吉利海峡海底隧道(51公里),整体投资高达约2600亿元人民币,耗资堪比三峡工程。这个宏大的海底隧道设想从提出开始,多年来一直饱受争议,性价比、地震带、技术难关、生态影响等各种质疑不断。目前,关于渤海海峡跨海大通道项目建设条件是否成熟的争论仍然不绝于耳。 “Smokey Sea Crossing Tunnel” is 123 kilometers in length and far surpasses Japan's Green Sea Cross Harbor Tunnel (54 kilometers) and the English Channel Cross Harbor Tunnel (51 kilometers). The overall investment is about 260 billion yuan, costing as much as the Three Gorges Project. This ambitious proposal for a cross-harbor tunnel has always been the subject of controversy over the years since it was put forward, and various questions such as cost performance, seismic zones, technological difficulties and ecological impacts have continued. At present, the debate on whether the conditions for the construction of the Bohai Strait Crossing-sea Grand Canal project are mature or not remains elusive.