土工基础

›› 2016, Vol. 30 ›› Issue (6): 634-636.

• 工程实录 • 上一篇    下一篇

地震力作用下基于FLAC3D的边坡支护锚索有效长度计算

彭文祥，季  强   

  1. （中南大学 地球科学与信息物理学院，长沙 410083）
  • 收稿日期:2015-12-24 修回日期:2017-01-15 出版日期:2016-12-20 发布日期:2016-12-22
  • 作者简介:彭文祥(1968-)，男，博士，研究方向为岩土工程的教学与研究。
  • 基金资助:

    国家自然科学基金资助项目(50578086)

FLAC3D Study of the Effective Length of the Ground Anchors in Anchored Soldier Pile Reinforced Slope in Jishou under Seismic Conditions

PENG Wenxiang, JI Qiang   

  1. (College of Earth Sciences and InfoPhysics, Central South University, Changsha 410083)
  • Received:2015-12-24 Revised:2017-01-15 Online:2016-12-20 Published:2016-12-22

摘要： 桩锚支护边坡体系受力复杂，目前一些基础理论研究仍然不甚清楚，已远远滞后于工程实践，尤其是在抗震设计方面。一些桩锚支护边坡中对于锚索长度的选取没有一个可靠的理论基础，通过实际工程对比FLAC3D数值模拟提出一套在地震力作用下，桩锚支护体系锚索的轴力分布，得出对特定地质条件下的锚索极限锚固长度的计算方法，现场实测数据与计算结果接近，表明该方法具有一定的适用性，并且该方法所涉及方程简单，求解容易，更便于工程师在地震条件下设计应用。

关键词: 桩锚支护, 边坡工程, 抗震设计, FLAC3D数值模拟

Abstract: The theoretical aspects of the soldier piles with ground anchors in the landslide remediation, especially under the seismic conditions, are not explicitly explained and are left behind the practical applications. The current practice does not have a rational and reliable method for the determination for the required length of ground anchors. This paper present a method for selecting the length of the ground anchors under certain subsurface conditions for the landslide remediation projects. The numerical analysis under seismic conditions was performed using FLAC3D and the results were consistent with the observed data.

Key words: Soldier Pile with Ground Anchor Supporting System, Slope Stability Projects, Seismic Design, FLAC3D Numerical Analysis