[1]徐乾,张永兴,陈建功,等.锚杆参数对锚固边坡抗震性能的影响[J].山地学报,2013,(06):753.
　XU Qian,ZHANG Yongxing,CHEN Jiangong.Effects of Anchor Parameters on Seismic Performance of Anchor Slope[J].Mountain Research,2013,(06):753.
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锚杆参数对锚固边坡抗震性能的影响()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2013年06期
页码:
753
栏目:
山地灾害
出版日期:
2013-01-01

文章信息/Info

Title:
Effects of Anchor Parameters on Seismic Performance of Anchor Slope
作者:
徐乾;张永兴;陈建功;
1.重庆大学 土木工程学院，重庆 400045；
2.山地城镇建设与新技术教育部重点实验室，重庆 400045
Author(s):
XU Qian; ZHANG Yongxing; CHEN Jiangong
1. School of Civil Engineering，Chongqing University，Chongqing 400045，China;
2. Key Laboratory of New Technology for Construction of Cities in Mountain Area (Chongqing University)， Ministry of Education，Chongqing 400045，China
关键词:
锚杆参数; 锚固边坡; 抗震性能; ANSYS; 抗震稳定性
Keywords:
anchor parameters; anchor slope; seismic performance; ANSYS; seismic stability
分类号:
P64227，TU 435
文献标志码:
A
摘要:
提出了一种简化的锚杆岩土体相互作用的动力学模型,结合该模型,借助ANSYS有限元程序建立数值模型。为了研究了锚杆参数(弹模、横截面积、长度、间距)对锚固边坡的影响,通过变化各个参数,分析其对锚固边坡的抗震性能(位移、加速度和应力)的影响。分析结果表明:锚杆参数对锚固边坡抗震性能影响强弱不一,甚至还会起反作用。增大锚杆横截面积可以有效提高边坡抗震稳定性(位移最大降幅可达33%,加速度最大降幅37.4%,应力最大降幅42.37%);减小锚杆间距也可以改善边坡抗震性能(位移最大降幅可达7.53%,加速度最大降幅9.85%,应力最大降幅38.3%);而提高锚杆弹模并不能有效降低边坡变形,相反还会增大边...
Abstract:
A simplified dynamic model of interaction between anchor and rock was proposed，and according to the anchor and soil dynamic model，numerical models were established by ANSYS program. And in order to analyze the effects of changes of anchor parameters (such as elasticity modulus，cross section，length and space) on anchor slope，by changing anchor parameters，it was studied the effects of anchor parameters on anchor slope seismic performances (such as displacement，acceleration and stress). And analysis results indicate that anchor parameters have different effects on seismic performance of anchor slope，some times they may play bad role in seismic stability. Increasing cross section of anchor is able to improve seismic stability effectively (maximum decreasing amplitude of displacement is up to 33%，maximum decreasing amplitude of acceleration is up to 37.4%，and maximum decreasing amplitude of stress is up to 42.37%); and reducing anchors space is also beneficial for improving seismic performance of anchor slope to some extent (maximum decreasing amplitude of displacement is up to 7.53%，and maximum decreasing amplitude of acceleration is up to 9.85%，and maximum decreasing amplitude of stress is up to 38.3%); increasing elasticity modulus cannot constrain slope deformation effectively，instead increases horizontal seismic acceleration of slope (maximum increasing amplitude is up to 13.8%); while anchor length have little effect on improve seismic performance of anchor slope. Consequently，suitable anchor parameters should be modified so as to improve seismic performances of anchor slope. And these conclusions may provide some reference for seismic design of anchor slope.

备注/Memo

备注/Memo:
收稿日期(Received date)：2013-05-09；改回日期(Accepted) : 2013-06-16。
基金项目（Foundation item）：国家自然科学基金资助项目（51027004）。[This study was supported by the National Natural Science Foundation of China (No. 51027004).]
作者简介（Biography）：徐乾，男，（1986-），博士研究生，主要从事岩土工程抗震研究。[Xu Qian, male,（1986-）doctor postgraduate, engaging in seismic study in geological engineering.] E-mail: xuqian0908140831@163.com
更新日期/Last Update: 1900-01-01