[1]苏 慧,毛昆明*,颜 建,等.竖铰接式生态直挡墙破坏机理数值分析[J].江苏水利,2018,(05):18-21.
 SU Hui,MAO Kunming*,YAN Jian,et al.Numerical analysis of failure mechanism of vertical articulated ecological straight retaining wall[J].JIANGSU WATER RESOURCES,2018,(05):18-21.
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竖铰接式生态直挡墙破坏机理数值分析()
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《江苏水利》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2018年05期
页码:
18-21
栏目:
工程建设
出版日期:
2018-05-15

文章信息/Info

Title:
Numerical analysis of failure mechanism of vertical articulated ecological straight retaining wall
文章编号:
1007-7839(2018)05-0018-04
作者:
苏 慧1毛昆明1*颜 建2黄奕钧3
1.金陵科技学院,江苏 南京 211196; 2.连云港市水工程管理处, 江苏 连云港 222003,3.河南大学,河南 开封 475000
Author(s):
SU Hui1MAO Kunming1*YAN Jian2HUANG Yijun3
1.Jinling Institute of Science and Technology,Nanjing 211196,Jiangsu; 2.Lianyungang Urban Area Water Engineering Management Department,Lianyungang 222003,Jiangsu; 3.Henan University,Kaifeng 475000,Henan
关键词:
竖铰接式直挡墙破坏机理数值分析生态
Keywords:
vertical articulatedstraight retaining wallfailure mechanism numerical analysis
分类号:
X522
文献标志码:
B
摘要:
竖铰接式生态直挡墙在中小河流中应用较广,为探明其破坏失稳机理,以Abaqus 软件为平台,建立土坡—竖铰接式生态直挡墙有限元模型,得到的结论和建议:由于竖铰接式生态直挡墙一般用于浅基坑或边坡,几乎不会发生直接滑移或倾覆失稳;其主要破坏形式是砌块受土压力作用而产生位移,连接上下砌块的纤维棒受到剪力过大从而断裂,砌块之间失去连接整体性下降,最后砌块逐个掉落导致土坡无支护而失稳。可采用抗剪强度高的材质如碳纤维棒代替玻璃纤维棒,并采取措施增加相邻砌块之间摩擦力。
Abstract:
Vertical articulated ecological straight retaining wall is widely used in the middle and small rivers, in order to study its failure mechanism, based on Abaqus software platform, earth slope-vertical articulated ecological straight retaining wall FEM is established, and the following conclusions and suggestions are obtained: Because vertical articulated ecological straight retaining wall is generally used in shallow foundation pit or slope, there is nearly no direct slip or overturning instability.Its main damaging form is the block produces displacement by earth pressure, fiber rods connecting up and down blocks are broken when the shearing force is too large, then the blocks overall fall down due to the connection between the blocks is lost. Finally, the block drops one by one, resulting in soil slopes have no supports and become unstable.Materials with high resisting shear strength such as carbon fiber rods can be used to replace glass fiber rods, and some measures are took to increase the friction between adjacent blo cks.

参考文献/References:

[1] 仝道斌,宋力,薛松,等.铰接式生态护坡块在水环境护岸工程中的应用[J].人民黄河,2012(02):12-16.
[2] 曹栽宏.生态联锁式护坡技术在河道护坡工程中的应用[J].水利规划与设计,2014(01): 51-53.
[3] 高翠云.联锁式生态护坡砖在河道护岸工程中的应用[J].水利规划与设计,2017(09): 95-97.
[4] 苏慧.铰链式混凝土砌块生态护坡技术在工程中的应用研究[J].水利与建筑工程学报,2013,11(3):70-72.
[5] 刘明辉,陶宇君.生态护坡在城市河道防护工程中的应用[J].江苏水利,2008,5(5):42-44.

备注/Memo

备注/Memo:
收稿日期:2017-12-02
基金项目:江苏省水利厅科技项目(2016038);江苏省科技厅自然科学基金面上资助项目(BK20141090);南京市科委社会发展项目(201505018)
作者简介:苏慧(1968-),女,教授,博士,主要研究方向为结构振动控制、节能环保、生态护坡。
通信作者:毛昆明(1985-),男,讲师,博士。
更新日期/Last Update: 2018-04-15