|Table of Contents|

Numerical Simulation of Slope Supporting for Prestressed Anchor with Frame Beam(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2010年第03期
Page:
307-310
Research Field:
地质工程
Publishing date:

Info

Title:
Numerical Simulation of Slope Supporting for Prestressed Anchor with Frame Beam
Author(s):
SHAO Yong1;  QIN Ren-hui2
(1. School of Earth Sciences and Engineering, Nanjing University, Nanjing 210093, Jiangsu, China; 2. School of Civil Engineering and Architecture, Guizhou University, Guiyang 550003, Guizhou, China)
Keywords:
landslide;  prestressed anchor;  frame beam;  anchoring body;  numerical simulation;  FLAC-3D
PACS:
TU45;P642
DOI:
-
Abstract:
Prestressed anchor with frame beam was used to evaluate the stability of the highway landslide in Xiaohe District, Guiyang City. The slope supporting system was evaluated by the software FLAC-3D. The results showed that the stress of structure system on the top of supporting surface was larger than that on the bottom, flexural moment of the vertical beam was larger than horizontal beam, so the design of vertical beam should be enhanced; the landslide displacement on the top of supporting surface was larger than that on the bottom, frame beam rotated because prestressed anchor could not under stress, so the anchor on the bottom should be replaced with bonded anchor rod; supporting effect was best when the length of anchoring body was 6 m, and increasing the length could not improve the supporting effect.

References:

[1] 肖世国,周德培.岩石高边坡一种预应力锚索框架型地梁的内力计算[J].岩土工程学报,2002,24(4):479-482.
[2] 田亚护,刘建坤,张玉芳.预应力锚索框架内力计算的有限差分法[J].北京交通大学学报,2007,31(4):22-25.
[3] 蒋楚生,李 军,李庆海,等.路堑边坡锚杆(索)框架梁设计存在的不足及对策[J].铁道工程学报,2009(10):16-19.
[4] 罗丽娟,赵法锁,王爱忠.某变质岩滑坡及支护结构变形破坏特征[J].地球科学与环境学报,2008,30(2):177-182.
[5] 贺汇文,龙建辉,苏生瑞,等.某高速公路滑坡的数值模拟及后缘坡体稳定性分析[J].地球科学与环境学报,2008,30(2):183-187.
[6] 蒋楚生,周德培,周应华.预应力地梁锚索改善边坡受力状态的理论分析[J].岩土工程学报,2005,27(8):974-976.
[7] 赵明阶,何光春,王多垠.边坡工程处置技术[M].北京:人民交通出版社,2003.
[8] 李 宁,张 鹏,于 冲.边坡预应力锚索加固的数值模拟方法研究[J].岩石力学与工程学报,2007,26(2):254-261.
[9] 郭军辉,阎长虹,许宝田,等.马三峰土质边坡稳定性分析与评价[J].防灾减灾工程学报,2007,27(1):101-106.
[10] 丁秀丽,盛 谦,韩 军,等.预应力锚索锚固机理的数值模拟试验研究[J].岩石力学与工程学报,2002,21(7):980-988.
[11] 丁多文,白世伟,罗国煜.预应力锚索加固岩体的应力损失分析[J].工程地质学报,1995,3(1):65-69.
[12] 徐前卫,尤春安,朱合华.预应力锚索的三维数值模拟及其应用研究[J].岩石力学与工程学报,2004,23(增刊2):4941-4945.

Memo

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Last Update: 2010-09-20