论文部分内容阅读
日本的本州和四国两岛间的濑户内海,海宽约10公里,水深100米,每小时海流速度10海里,还有风速高达70米/秒的突发飓风、地震等严重的自然条件,横跨这样的内海修建桥梁,问题很多。日本原计划在四年前动工兴建三条联络线、19座长大桥梁、总投资48亿英镑。(总图见《国外铁道动态》1974年16期)。
The Seto Inland Sea between Japan’s Honshu and Shikoku islands has a sea width of about 10 kilometers and a water depth of 100 meters with a current velocity of 10 nautical miles per hour and unexpected natural conditions such as sudden hurricanes and earthquakes with a wind speed of up to 70 m / There are many problems with building bridges across such inland seas. Japan originally planned to start construction of three tie lines four years ago and 19 bridges for growth with a total investment of 4.8 billion pounds. (See the “General Plan of Overseas Railway”, vol. 16, 1974).