土工基础

›› 2012, Vol. 26 ›› Issue (4): 52-55.

• 工程实录 • 上一篇    下一篇

郭文龙，李重阳，龚星，李敬，熊壮   

  1. 华中科技大学土木工程与力学学院，武汉 430074
  • 收稿日期:2011-11-14 出版日期:2012-08-20 发布日期:2012-09-07
  • 作者简介:郭文龙，男，华中科技大学土木工程与力学学院道路桥梁及渡河专业本科生。
  • 基金资助:

    华中科技大学大学生科技创新项目

Uplift Capacity of the Underream Ended Anchors Formed by Jet Grout

GUO Wenlong，LI Chongyang，GONG Xing，LI Jin， XIONG Zhuang   

  1. School of Civil Engineering and Mechanics，Huazhong University of Science and Technology, Wuhan  430074
  • Received:2011-11-14 Online:2012-08-20 Published:2012-09-07

摘要： 采用有限差分软件FLAC3D对高压喷射扩大头锚杆的抗拔力进行数值模拟计算，通过改变各种材料参数，得到相应的Q-S曲线，以研究扩大头尺寸、土体性质对高压喷射扩大头锚杆抗拔力的影响；同时考虑群锚效应，确定了扩大头锚杆的合理间距。研究结果对实际工程具有一定的参考价值。

关键词: 高压喷射扩大头锚杆, 数值模拟, 抗拔力, 群锚效应

Abstract: The uplift capacity of the underream ended anchors formed by jet grout is simulated by FLAC3D.  The Q~S curve is developed from the parametric study.  Parametric studies on effect of the dimension of the enlarged end and properties of adjacent soils on the uplift capacity are also performed. The group effect of anchor spacing is also investigated in this paper.

Key words: Jet Grout Formed Underream Ended Anchors, Numerical Simulation, Uplift, Group Effect of Anchors