›› 2018, Vol. 32 ›› Issue (3): 350-354.

• 工程实录 • 上一篇    下一篇

重型动力触探试验在机场土石方填筑质量检测中的应用研究

陈春东1,蔡凯南2,王汉武3,胡胜刚3   

  1. (1.梧州西江机场投资开发有限公司,广西梧州 543000;2.武汉理工大学土木工程与建筑学院,武汉 430071;
    3.长江科学院水利部岩土力学与工程重点实验室,武汉 430014)
  • 收稿日期:2017-09-30 修回日期:2018-03-02 出版日期:2018-06-22 发布日期:2018-06-26
  • 作者简介:陈春东(1972-),男,工程师,研究方向为工程务实与项目管理。

Application of the Heavy Dynamic Cone Penetration Test in the Quality Control in Airport Fills

CHEN Chundong1, CAI Kainan2, WANG Hanwu3, HU Shenggang3   

  1. (1.Wuzhou Xijiang Airport Investment and Development Co., Ltd., Wuzhou 543000;
    2.Wuhan University of Technology, Wuhan 430071;
    3.Key Laboratory of Geomechanics and Geotechnical Engineering, Changjiang River Scientific Research,
    Institute of Changjiang Water Resources Commission, Wuhan 430014)
  • Received:2017-09-30 Revised:2018-03-02 Online:2018-06-22 Published:2018-06-26

摘要: 机场土石方填筑通常采用强夯法施工,填土密实度是控制机场高填方工程填筑质量的关键,常规的检测方法存在局限性。提出了一种以重型动力触探试验测得的动探击数N63.5来检测填土密实度的方法,即通过对比试验找到动探击数N63.5与压实度之间的对应关系,得到满足设计要求的压实度对应的N63.5,利用N63.5评价填筑质量。以动力触探试验检测强夯填筑体压实度是一种有效的方法,但应针对不同土类设计对比试验以确定合格指标,为同类机场或其他高填方土石方工程提供借鉴和参考。

关键词: 强夯法, 填筑质量, 压实度, 重型动力触探

Abstract:  The fill work for airports are commonly improved by the dynamic compaction method. One of the key parameters for the quality control of the fill operation is the degree of compaction and the conventional testing methods have limited applications. This paper proposes using the Heavy Dynamic Cone Penetration Testing (HDCPT) blow counts N63.5 to correlate the degree of compaction. The correlations between the blow counts N63.5 and degree of compaction were obtained through the comparative tests. The minimum acceptable HDCPT blow counts N63.5 was used for the quality control.

Key words: Dynamic Compaction Method, Quality of Fills, Degree of Compaction, Heavy Dynamic Cone Penetrometer