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隧道建设(中英文) ›› 2018, Vol. 38 ›› Issue (9): 1405-1415.DOI: 10.3973/j.issn.2096-4498.2018.09.001
SUN Jun1, 2, 3,*, LIU Zizhong4, LIU Jiapeng4
收稿日期:
2018-07-23
出版日期:
2018-09-20
发布日期:
2018-09-30
作者简介:
孙钧(1926—),男,江苏苏州人,1949年解放前夕毕业于上海国立交通大学土木工程系结构工程专业,国内外隧道与地下工程知名学者、专家,同济大学荣誉、终身、一级教授,中国科学院(技术科学部)资深院士,前国际岩石力学学会副主席暨中国国家小组主席,中国岩石力学与工程学会名誉理事长(前理事长),中国土木工程学会顾问、名誉理事(前副理事长),中国土木工程学会、中国公路学会、上海市土木工程学会等学会隧道与地下工程分会前副理事长、理事长。港珠澳大桥技术专家组专家。Email: junsunk@163.com。
孙钧1, 2, 3,*, 刘子忠4, 刘甲朋4
Received:
2018-07-23
Online:
2018-09-20
Published:
2018-09-30
摘要:
The improvement in the operation speed of the transportation project means the progress and development of the construction technologies in transportation projects. In this paper, the following factors restricting the further improving of the speed of highspeed railway are analyzed: as the operation speed increases, the trains in the dense atmosphere are subject to the windinduced resistance and various resistances caused by the friction between the wheels and the rails and by the irregularity of tracks, and the noise will also increase with a high power. Therefore, the economy and safety issues involved in the operation have become the main factors restricting the further improving of the speed of highspeed railway. A scheme of vacuum pipelines of underwater vacuum tunnel and/or subwater bridge is proposed in this paper: the pipelines and cars are sealed and vacuated to form the quasivacuum. The transportation system of the vacuum maglev train at ultrahigh speed with the HTS maglev technology can achieve the operation speed more than 4 times that of the existing HSR train (about 1 200 km/h). Key technologies for constructing the vacuum maglev tunnels/subwater bridges in respect of construction plans, vacuating and sealing, as well as maglev trains are introduced in this paper. The subjects to be further studied on the vacuum HTS maglev tunnels (pipelines) are analyzed from the aspects of technology, management, construction costs, operation expenses, candidate project, airtight materials for cars and evacuation in case of emergencies. It is recommended that "crosssea maglev train in vacuum tunnel" should be developed in the ecotourism project between the coastal cities and their neighboring islands and a series of necessary technical tests should be conducted during the trial operation, so as to obtain related experience. Based on the experience and lessons learned, the transportation system at ultrahigh speed may be implemented for straitcrossing projects in China. Finally, a brief introduction to the research on HSR trains at ultrahigh speed in countries such as China, the United States and the Netherlands is presented in this paper. The development of vacuum pipeline transportation can drive the development of China′s transportation modes in a faster, safer and more energyefficient manner, facilitating the development of the fifthgeneration of transportation industry and its driving role in the social and economic development, and promoting the integration and progress of the economy of China or even the world at a higher speed.
中图分类号:
SUN Jun, LIU Zizhon, LIU Jiapeng. 畅想海上交通运输建设的伟大革命:真空高温超导磁浮高速列车桥隧工程前期工作与运行方案探讨[J]. 隧道建设, 2018, 38(9): 1405-1415.
孙钧, 刘子忠, 刘甲朋. Great Revolution in Maritime Transportation: Discussion on Preliminary Work and Operation Plan of Bridge/Tunnel Projects for Vacuum HTS Maglev Train at High Speed[J]. Tunnel Construction, 2018, 38(9): 1405-1415.
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