盐湖区桥涵设计建造的主要技术难题及对策

雷晓峰

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铁道工程学报 ›› 2010, Vol. 27 ›› Issue (6) : 65-69.

路网研究

盐湖区桥涵设计建造的主要技术难题及对策

雷晓峰

作者信息 +

Technical Problems and Solutions to Design and Construction of Bridge and Culvert in Salt-lake Area

LEI Xiao-feng

Author information +

文章历史 +

摘要

研究目的：我国的盐湖分布广泛,随着大规模的铁路建设,越来越多的铁路需要穿越盐湖地区。根据察尔汗盐湖区的工程环境特点,分析盐湖地区桥涵修建的主要技术难题,研究提出盐湖地区桥涵的主要设置原则、综合防腐措施及施工方法。

研究结论：在总结西宁至格尔木铁路相关设计、研究及施工经验的基础上,对盐湖区桥涵设计建造提出了较为系统的对策措施:选择受力明确、施工简便、耐久性好的桥涵结构形式及基础类型,进行恰当的构造处理,采用耐久混凝土,设置合理的钢筋保护层厚度;合理运用环氧涂层钢筋、钢筋阻锈剂、纤维混凝土、硅烷浸渍、防腐涂层、渗透性模板等混凝土结构耐久性附加措施。

Abstract

Research purposes：With construction of railway on a large scale in China, more and more railways need to pass through the salt-lake areas that are widely distributed in China. According to the engineering environment and characteristics in the Chaerhan salt-lake area, the major technical problems in construction of bridge and culvert in salt-lake are analyzed, and the primary setting principles, comprehensive anti-corrosion measures and construction methods for construction of bridge and culvert in salt-lake are presented in this paper.

Research conclusions：Based on learning the experiences in the design, research and construction of Xining-Golmud Railway, some systematic solutions to design and construction of bridges and culverts in the salt-lake area are presented. The solutions include selecting the structural type and foundation style with clear load condition, convenient construction and good durability, conducting appropriate structure treatment, using durable concrete, determining the reasonable thickness of the protecting cover for reinforcement, and taking additional measures for improving the concrete structure durability, such as reasonable using epoxy-coated steel bars, rust inhibitor, fiber concrete, silane soakage technique, anti-corrosion coating and permeable concrete for mworks.

导出引用

雷晓峰. 盐湖区桥涵设计建造的主要技术难题及对策[J]. 铁道工程学报, 2010, 27(6): 65-69

LEI Xiao-feng. Technical Problems and Solutions to Design and Construction of Bridge and Culvert in Salt-lake Area[J]. Journal of Railway Engineering Society, 2010, 27(6): 65-69

中图分类号： U447

参考文献

[ 1 ] 龙锦永. 我国第一条盐湖铁路[J]. 铁道工程学报, 1996(2): 272-278.

Long Jinyong. The First Saline Lake Railway in China[J]. Journal of Railway Engineering Society, 1996(2): 272-278.

[ 2 ] 钱征宇. 我国盐湖铁路的主要技术问题及工程措施[J]. 中国铁路, 2004(4): 43-46.

Qian Zhengyu. Main Technical Problems and Engineering Measures on Railway Construction in the Salt Lake Region in China[J]. Cninese Railways, 2004(4): 43-46.

[ 3 ] 李志贤. 青藏铁路盐渍土路基工程的设计与施工[J]. 铁道工程学报, 1994(1): 43-47.

Li Zhixian. The Design and Construction of the Roadbed on Salty Soil of Qinghai-Tibet Railway[J]. Journal of Railway Engineering Society, 1994(1): 43-47.

[ 4 ] 王绳祖. 盐湖岩盐变形破坏的试验研究与数学模拟[J]. 岩土工程学报, 1982(4): 17-28.

Wang Shengzu. Experimental Investigation and Mathematical Simulation of Deformation and Failure of Salt-lake Rock salt[J]. Chinese Journal of Geotechnical Engineering, 1982(4): 17-28.

[ 5 ] 杨海容, 蒋富强, 王翔, 等. 青藏铁路察尔汗盐湖盐岩和盐溶工程地质特性及路基修筑技术[J]. 铁道工程学报, 2005(S1): 373-378.

Yang Hairong, Jiang Fuqiang, Wang Xiang, etc. Characteristics of Salt Rock and Salt-dissolution Engineering Geology and Subgrade Construction in Chaerhan Salt Lake A long Qinghai-Tibet Railway[J]. Journal of Railway Engineering Society, 2005(Supplement 1): 373-378.

[ 6 ] 王鹰, 谢强, 赵小兵. 含盐地层工程性能及其对铁路工程施工的影响[J]. 矿物岩石, 2000(4): 81-85.

Wang Ying, Xie Qiang, Zhao Xiaobing. Engineering Properties of Salt-bearing Strata and Its Effects on Construction of Railway[J]. Journal of Mineralogy and Petrology, 2000(4): 81-85.

[ 7 ] 王青, 徐港. 氯盐环境下混凝土结构的防护设计措施[J]. 混凝土, 2007(7): 96-100.

Wang Qing, Xu Gang. Protective Measures for Durability of Concrete Structures in Chloride Environment[J]. Concrete, 2007(7): 96-100.

[ 8 ] 张国学, 吴苗苗. 不锈钢钢筋混凝土的应用及发展[J]. 佛山科学技术学院学报(自然科学版), 2006(6): 10-13.

Zhang Guoxue, Wu Miaomiao. Application and Development of Stainless Steel Rebars for Reinforced Concrete Structures[J]. Journal of Foshan University (Natural Science Edition), 2006(6): 10-13.

[ 9 ] 王雨, 丁高升, 张桂媛. 渗透型混凝土保护剂的应用[J]. 新型建筑材料, 2008(3): 69-72.

Wang Yu, Ding Gaosheng, Zhang Guiyuan. Application of Protective Agent for Permeable Concrete [J]. New Building Materials, 2008(3): 69-72.

[ 10 ] 徐华兴, 周双喜, 徐春红. 混凝土早期裂缝成因分析及控制措施[J]. 交通科技, 2008(1): 68-71.

Xu Huaxing, Zhou Shuangxi, Xu Chunhong. Reason Analysis and Preventive Measures of Early Cracks of Concrete[J]. Transportation Science & Technology, 2008(1): 68-71.

[ 11 ] 朱淮军. 硅烷浸渍技术在高性能混凝土中的防腐保护效果[J]. 混凝土, 2009(10): 126-128.

Zhu Huaijun. Effects of Silcane Impregnant in Protecting High Performance Concrete from Corrosion[J]. Concrete, 2009(10): 126-128.

[ 12 ] 田正宏, 郑小伟, 宋健大, 等. 透水模板改善混凝土性能试验[J]. 建筑材料学报, 2008(2): 172-178.

Tian Zhenghong, Zheng Xiaowei, Song Jianda, etc. Performance Tests of Concrete Poured with Controlled Permeability Formwork[J]. Journal of Building Materials, 2008(2): 172-178.