长江科学院院报 ›› 2013, Vol. 30 ›› Issue (8): 31-36.DOI: 10.3969/j.issn.1001-5485.2013.08.0;2013,30(08)

• 施工导截流 • 上一篇    下一篇

截流钢筋笼的稳定性及其计算方法

李学海a,程子兵a,汪世鹏b,石教豪a   

  1. 长江科学院a.水力学研究所;b.武汉长科工程建设监理有限责任公司,武汉430010
  • 收稿日期:2013-08-13 修回日期:2013-08-13 出版日期:2013-08-13 发布日期:2013-08-13
  • 作者简介:李学海(1966-),男,湖南宁乡人,教授级高级工程师,博士,研究方向为水力学及流态力学,(电话)027-82823060(电子信箱)65689@sina.com。
  • 基金资助:
    国家“十一五”科技支撑项目(2008BAB29B02)

Computational Method for the Stability of Steel Reinforcement Cage Applied in River Closure

LI Xue-hai1, CHENG Zi-bing1, WANG Shi-peng2, SHI Jiao-hao1   

  1. 1.Hydraulics Department, Yangtze River Scientific Research Institute, Wuhan 430010, China;
    2.Wuhan Changke Engineering Construction Supervision Co.,Ltd., Wuhan 430010,China
  • Received:2013-08-13 Revised:2013-08-13 Online:2013-08-13 Published:2013-08-13

摘要: 对实践中常用到的正六面体钢筋笼的稳定性从重量、形状以及有无垫底材料等方面进行了试验研究及工程实例验证。首次拟合提出了考虑其形状因素、河床糙度因素的正六面体钢筋笼止动流速和起动流速的计算公式,经试验验证具有较高的计算精度和实用性。此外,对四面体钢筋笼的稳定性也进行了试验研究,研究表明:四面体钢筋笼用于截流抛投这类止动问题的工程时,其止动稳定性明显优于相同重量的正六面体钢筋笼;而对于护底等起动问题的工程,两者起动稳定性差别不大。

关键词: 截流, 六面体钢筋笼, 四面体钢筋笼, 稳定特性, 影响因素, 计算公式

Abstract: The steel reinforcement cages with hexahedral shape are widely applied to river closure. Through tests and engineering example verifications focusing on weight, shape and bottom protection, the related formulas are fitted for the first time to compute the flow velocities for movement stopping and movement initiation of hexahedral steel reinforcement cages in consideration of cage shape and bed roughness. The fitted formulas are of high accuracy and practicality. In addition, tests on the stability of steel reinforcement cage with tetrahedral shape.

Key words: river closure, steel reinforcement cage with hexahedral shape, steel reinforcement cage with tetrahedral shape, stability behavior, influencing factor, computational formula

中图分类号: