[1]陈启辉,宋金平,江宗宝,等.微型桩与部分预应力复合土钉变形因素分析[J].山东建筑大学学报,2010,(03):236-239.
 CHEN Qi-hui,SONG Jinp-ing,JIANG Zong-bao,et al.Aanalysis of factors on deformation of micro-pile & pretressed soil nailing[J].Journal of Shandong jianzhu university,2010,(03):236-239.
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微型桩与部分预应力复合土钉变形因素分析()
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《山东建筑大学学报》[ISSN:1673-7644/CN:37-1449/TU]

卷:
期数:
2010年03期
页码:
236-239
栏目:
研究论文
出版日期:
2010-06-15

文章信息/Info

Title:
Aanalysis of factors on deformation of micro-pile & pretressed soil nailing
作者:
陈启辉12宋金平1江宗宝2郭道通2
1.山东建筑大学 土木工程学院,山东 济南 250101;2.山东建大工程鉴定加固研究所,山东 济南 250014
Author(s):
CHEN Qi-hui 1SONG Jinp-ing 1  JIANG Zong-bao2 et al.
1 School of Civil Engineering, Shandong Jianzhu University, Jinan 250101, China; 2 Institute of Engineering Assessment and Reinforcement, Shandong Jianzhu University, Jinan 250014, China
关键词:
复合土钉支护侧向变形数值模拟正交试验
Keywords:
composite soil nailing lateral deformation numerical simulation orthogonal test
分类号:
TU432
文献标志码:
A
摘要:
微型桩和部分预应力复合土钉支护是近年来出现的一种新型基坑围护结构,已得到广泛应用。本文运用显式差分有限差分软件FLAC-3D分析了土钉长度、土钉倾角、微型桩间距、微型桩嵌固深度及土钉预应力支护参数对复合土钉支护变形的影响,并用正交试验方法分析了各影响因素对变形的敏感度。结果表明:适当增加土钉长度、控制微型桩间距、增大微型桩的嵌固深度能控制支护结构变形,增加土钉预应力对减小支护变形效果明显,同时土钉预应力大小对支护变形的影响最大,而土钉倾角的影响最小。
Abstract:
Micro-pile & pretressed soil nailing is a new support structure which is widely used. In this article, with FLAC-3D software ,the influencing factors on deformation of composite soil nailing are discussed , such as the nail length, angle of soil nail, micro-pile spacing, the embedded length of micro-pile and soil nail prestress. Also dealt with is the deformation sensitivity to the discussed factors with the orthogonal test. The result show that deformation of support structure can be controlled by increasing proper soil nail length, controlling micro-pile spacing, increasing the embedded depth of micro-pile. The effect of reducing support deformation is obvious by increasing soil nail prestress, and deformation of support is most influcenced by soil nail prestress, but is least influcenced by angle of soil nail.

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更新日期/Last Update: 2010-08-03