输电杆塔斜插基础地基变形模拟研究
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摘要
杆塔基础的设计、荷载以及所在地形和地质的情况会直接造成地基变形,影响其稳定性。杆塔基础除承受压力外,还承受较大的水平荷载。斜插式电力杆塔基础作为一种新型基础,通过调节斜插基础立柱的倾斜角度,使其受力合理,在输电线路的设计中得到了很广泛的应用。但是,这种基础的设计理论尚不完善,使用经验也还不成熟。该文对直柱板式基础和斜插基础进行地基变形模拟分析及对比,得出了斜插基础地基变形特征,为斜插基础的设计提供一定依据。
The design,load,topographical and geological situation of the tower foundation will directly cause foundation deformation, affecting its stability.The tower is subjected to a large horizontal load besides bearing pressure. As a new type of foundation, the oblique inserted power transmission tower is extensively applied in transmission line design by adjusting the tilt angle of the slant foundation column to make the stress reasonable. However, the design theory of this tower foundation is not perfected, and the application experience is not mature, either. In this paper, the simulation analysis and comparison of the foundation deformation of the straight column foundation and the oblique inserted foundation are conducted, with the deformation characteristics of the oblique inserted foundation obtained, which provides a basis for the design of the oblique inserted foundation.
The design,load,topographical and geological situation of the tower foundation will directly cause foundation deformation, affecting its stability.The tower is subjected to a large horizontal load besides bearing pressure. As a new type of foundation, the oblique inserted power transmission tower is extensively applied in transmission line design by adjusting the tilt angle of the slant foundation column to make the stress reasonable. However, the design theory of this tower foundation is not perfected, and the application experience is not mature, either. In this paper, the simulation analysis and comparison of the foundation deformation of the straight column foundation and the oblique inserted foundation are conducted, with the deformation characteristics of the oblique inserted foundation obtained, which provides a basis for the design of the oblique inserted foundation.
引文
[1]鲁先龙,程永锋.我国输电线路基础工程现状与展望[J].电力建设,2015(11):25-27.
[2]张金举.斜插基础在送电线路工程中的应用分析[J].红水河,2007(s1):137-141.
[3]陈安宁.斜插基础在送电线路工程中的应用研究[J].企业技术开发,2013(21):160-161.
[4]陶冶.高压输电线路铁塔基础选型设计及其优化[J].科技资讯,2016(16):25-26.
[5]Li Huaihai,Wang Zhangqi,Li Hengyao,etal.Structural design and experimental investigation of transmission tower with adjustable height in adaptation to uniform foundation settlement[J].Power System Technology,2007(19):83-86.
[6]Zhang Jianqiang,Yang Kun,Wang Yudong,etal.Research on foundation treatment of high voltage transmission towers erected above goaf of coal mine[J].Power System Technology,2006(2):30-34.
[7]熊卫红,刘先珊,李正良,等.500kV输电线路基础沉降铁塔的可靠度分析[J].电力建设,2015(2):41-47.
[8]DL/T 5219-2014架空送电线路基础设计技术规程[S].北京:中国电力出版社,2015.
[9]程永锋,邵晓岩,朱全军.我国输电线路基础工程现状及存在的问题[J].电力建设,2002(3):32-34.
[10]李成文.110kV送电线路常用杆塔工程图集:设计·计算·施工图[M].北京:中国电力出版社,2007:22.
[11]万新.关于斜插式基础受力的分析探讨[J].红水河,2011(5):128-129+136.
[12]刘建华.插入式角钢斜柱基础施工要点浅析青海电力[J].青海电力,1999(4):42-45.
[2]张金举.斜插基础在送电线路工程中的应用分析[J].红水河,2007(s1):137-141.
[3]陈安宁.斜插基础在送电线路工程中的应用研究[J].企业技术开发,2013(21):160-161.
[4]陶冶.高压输电线路铁塔基础选型设计及其优化[J].科技资讯,2016(16):25-26.
[5]Li Huaihai,Wang Zhangqi,Li Hengyao,etal.Structural design and experimental investigation of transmission tower with adjustable height in adaptation to uniform foundation settlement[J].Power System Technology,2007(19):83-86.
[6]Zhang Jianqiang,Yang Kun,Wang Yudong,etal.Research on foundation treatment of high voltage transmission towers erected above goaf of coal mine[J].Power System Technology,2006(2):30-34.
[7]熊卫红,刘先珊,李正良,等.500kV输电线路基础沉降铁塔的可靠度分析[J].电力建设,2015(2):41-47.
[8]DL/T 5219-2014架空送电线路基础设计技术规程[S].北京:中国电力出版社,2015.
[9]程永锋,邵晓岩,朱全军.我国输电线路基础工程现状及存在的问题[J].电力建设,2002(3):32-34.
[10]李成文.110kV送电线路常用杆塔工程图集:设计·计算·施工图[M].北京:中国电力出版社,2007:22.
[11]万新.关于斜插式基础受力的分析探讨[J].红水河,2011(5):128-129+136.
[12]刘建华.插入式角钢斜柱基础施工要点浅析青海电力[J].青海电力,1999(4):42-45.