沉管隧道技术应用及发展趋势

发布时间：2018-04-20 11:30

本文选题：沉管隧道 + 港珠澳大桥　；参考：《隧道建设》2017年04期

【摘要】：随着我国城市化进程快速推进,很多大城市集中在江河两岸或江河入海口附近,沉管隧道具有埋深浅、通行能力大、线路短、横断面形状选择灵活、管节预制质量易于控制和防水效果好等优点,使得沉管隧道技术得到广泛应用和迅速发展。1)归纳沉管隧道的主要技术,有隧道位置的选择原则与建设条件调查、几何设计、结构与防水设计、接头处理、基础处理、管节浮运沉放等;2)从隧道的精细化地质勘察、基础处理、基础垫层处理和消防技术等方面,介绍目前世界上建造规模最大的沉管隧道——港珠澳大桥沉管隧道施工关键技术,其建设标志着我国沉管隧道技术已达到国际先进水平;3)结合国内外沉管隧道修建情况,总结沉管隧道工程技术的发展趋势:规模不断增大、环境适应性越来越强、施工装备水平不断提升、最终接头技术不断进步;4)随着沉管隧道理论设计、施工工艺和配套工程的不断发展,关键技术的不断完善,新工程的不断建设,以及新技术、新工艺和新设备的不断涌现,将推进沉管法隧道技术再上新台阶。
[Abstract]:With the rapid development of urbanization in China, many large cities concentrate on the banks of rivers or near the estuaries of rivers. The immersed tunnels have shallow buried depth, large capacity, short lines and flexible cross-section shape. Due to the advantages of easy control of pipe segment prefabrication quality and good waterproof effect, the sinking tunnel technology has been widely used and developed rapidly. 1) the main technologies of immersed tube tunnel are summarized, including the selection principle of tunnel location and the investigation of construction conditions, geometric design, etc. Structure and waterproof design, joint treatment, foundation treatment, pipe nodal floating, sinking, etc.) from the aspects of tunnel fine geological investigation, foundation treatment, foundation cushion treatment and fire fighting technology, etc. This paper introduces the key technology of the sinking tunnel construction of Hong Kong, Zhuhai-Macao Bridge, which is the largest tunnel in the world at present. Its construction indicates that the sinking tunnel technology of our country has reached the international advanced level. (3) combined with the construction situation of the immersed tunnel at home and abroad. Summing up the development trend of sinking tunnel engineering technology: increasing scale, increasing environmental adaptability, increasing construction equipment level, and continuous progress of final joint technology) with the theoretical design of immersed tunnel, The continuous development of construction technology and supporting engineering, the continuous improvement of key technology, the continuous construction of new engineering, and the continuous emergence of new technology, new technology and new equipment will push the tunnel technology of immersed tube method to a new level.
【作者单位】：港珠澳大桥管理局;
【分类号】：U459.5

【相似文献】