东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2018, Vol. 39 ›› Issue (4): 584-588.DOI: 10.12068/j.issn.1005-3026.2018.04.026

• 资源与土木工程 • 上一篇    下一篇

沈阳砂土地层含翼缘钢顶管摩阻力计算方法

纪新博1， 赵文1， 程诚1， 朱茂国2   

  1. (1. 东北大学 资源与土木工程学院， 辽宁 沈阳110819; 2. 中铁第六勘察设计院集团有限公司 中铁隧道勘测设计院有限公司， 天津300133)
  • 收稿日期:2016-11-01 修回日期:2016-11-01 出版日期:2018-04-15 发布日期:2018-04-10
  • 通讯作者: 纪新博
  • 作者简介:纪新博(1987-) ，男，吉林通化人，东北大学博士研究生； 赵文(1962-)，男，内蒙古集宁人，东北大学教授，博士生导师．
  • 基金资助:
    国家自然科学基金资助项目(51171041).国家自然科学基金资助项目(51578116).

Calculation Method of Frictional Force Along Flanged Steel Jacking Pipe in Shenyang Sandy Strata

JI Xin-bo1， ZHAO Wen1， CHENG Cheng1， ZHU Mao-guo2   

  1. 1. School of Resources & Civil Engineering， Northeastern University， Shenyang 100819， China; 2. China Railway Tunnel Survey & Design Institute Co.， Ltd.， China Railway Sixth Survey and Design Institute Group Co.， Ltd.， Tianjin 300133， China.
  • Received:2016-11-01 Revised:2016-11-01 Online:2018-04-15 Published:2018-04-10
  • Contact: ZHAO Wen
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摘要： 基于Staheli的圆形顶管拱顶竖向土压力计算方法，推导出含翼缘异形钢顶管的拱顶竖向土压力计算方法.通过室内改进的直剪试验，得到了钢顶管与沈阳砂土、砂浆混合液与存泥浆之间的摩擦系数.通过现场监测，得到了含翼缘异形钢顶管顶力、摩阻力随顶程的变化规律.综合以上拱顶竖向土压力的理论推导与管土摩擦系数的室内试验，提出了含翼缘异形钢顶管摩阻力理论计算方法，将该方法的计算结果和现场观测数据进行了对比，得到较好的一致性，验证了所提方法的可行性.

关键词: 沈阳砂土地层, 顶管工程, 翼缘顶管, 摩阻力, 顶力

Abstract: Based on the Staheli’s method for calculating the vertical soil pressure on circular jacking pipes， a vertical earth pressure calculation model for the circular flanged jacking pipe in Shenyang sandy strata was derived. The mechanical parameters of the sandy strata were tested， and the friction coefficients between soil and pipe was measured using a modified direct-shear test. The changing rules of the jacking forces and the frictional forces during the jacking process were monitored in situ. Then， a new calculation method was proposed to estimate the frictional resistance of the flanged jacking pipe in the sandy strata of Shenyang. Results from the proposed method agree well with field monitoring data， which proves the feasibility of the proposed method.

Key words: Shenyang sandy strata, jacking pipe engineering, flanged jacking pipe, frictional force, jacking force

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