S245公路下立交船坞式结构设计研究  

Research on the Design of Dock Structure for Underpass of S245 Highway

作　　者：魏国安[1] 

机构地区：[1]中铁第一勘察设计院集团有限公司,西安710043

出　　处：《铁道工程学报》2009年第6期34-36,62,共4页Journal of Railway Engineering Society

摘　　要：研究目的:介绍S245公路下立交工程船坞式结构在水文地质、工程地质条件很复杂的状况下,公路断面结构形式、土压力、抗浮力的计算及设计。研究结论:当地下工程必须修建在工程地质、水文地质条件比较复杂的地区时,其边界条件(包括地下水的浮力、渗漏、土压力等)对工程的设计、施工造成很大的影响,设计过程中不仅要考虑各种因素对工程的影响,而且还要保证安全施工及以后的工程运营安全。实践证明,在工程地质、水文地质条件比较复杂的地区,下穿公路采用船坞式结构设计是可行的,合理安全的。Research purposes： In this paper, the introduction is given to the researches on the calculations of the structural style of road cross - section, soil pressure and buoyancy force resistance for design of the clock structure for the underpass of S245 Highway under the complicated engineering geological and hydrological conditions. conclusions： h is proved that the border conditions, such as buoyant force of underground water, leakage, soil pressure have a great influence on the design and construction of the underground engineering in the area of complicated engineering geological and hydrological conditions, so all the influence factors should be taken into account in the design to ensure the safety of construction and operation in future. It is feasible, reasonable and safe to adopt dock structure for underpass of highway under complicated engineering geological and hydrological conditions.

关 键 词：船坞式结构 地下水 上浮力 土压力 

分 类 号：U211.9[交通运输工程—道路与铁道工程]