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| 既有竖向荷载对微型桩水平承载特性的影响 | |
| 引用本文： | 陈正,刘宇,梅国雄.既有竖向荷载对微型桩水平承载特性的影响[J].南京工业大学学报(自然科学版),2011,33(1):101-106. |
| 作者姓名： | 陈正 刘宇 梅国雄 |
| 作者单位： | 1. 南京工业大学,土木工程学院,江苏,南京,210009;江苏中森建筑设计有限公司,江苏,镇江,212009 2. 江苏中森建筑设计有限公司,江苏,镇江,212009 3. 南京工业大学,土木工程学院,江苏,南京,210009 |
| 摘 要： | 运用ABAQUS有限元软件,分析了微型桩在既有竖向荷载作用时施加水平荷载,桩体的水平位移、桩身弯矩、土体的横向抗力、侧摩阻力等的变化情况;对比不同既有竖向荷载作用对微型桩水平承载性能的影响。结果表明:竣工后桩基础中分担竖向荷载较大的桩,抵抗水平荷载的能力较强;不同施工阶段,随着上部竖向荷载不断增加,桩抵抗水平侧移的能力增强。 |
| 关 键 词： | 水平承载力 竖向承载力 倾斜荷载 数值模拟 受力性状 微型桩 |
Vertical load effect on micropile lateral bearing capacity |
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| CHEN Zheng,LIU Yu,MEI Guoxiong.Vertical load effect on micropile lateral bearing capacity[J].Journal of Nanjing University of Technology,2011,33(1):101-106. | |
| Authors: | CHEN Zheng LIU Yu MEI Guoxiong |
| Institution: | 1(1.College of Civil Engineering,Nanjing University of Technology,Nanjing 210009,China;2.Jiangsu Zhongsen Architecture Design Co.,Ltd.,Zhenjiang 212009,China) |
| Abstract: | The field flexible micropile was simulated with finite element software ABAQUS.Because numerical analysis results were in agreement with field measured results,the simulation parameters could be considered to be effective and correct.Considering the micropile under vertical load and lateral load as well,lateral displacement,pile moment,soil lateral resistance,and side friction under lateral load induced by vertical load were analyzed.Anaysis results showed that after construction having completed,the pile in foundation beared more vertical load,that pile had more lateral bearing capacity.the pile lateral bearing capacity increased with the vertical load above in crease in different construction stages. |
| Keywords: | lateral bearing capacity vertical bearing capacity inclined load numerical simulation mechanical behavior micropiles |
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