摘要
从基本的预应力锚杆工作机理出发 ,分析了常规数值模拟方法中存在的不足 ,提出了一种新的有限元数值模拟处理方案 ,该方法的特点在于其不但可以模拟锚杆的预应力锁定过程 ,而且可以反映锁定后锚杆体内力的变化。通过对海南某基坑工程的施工模拟及实测结果比较 ,表明该方法是比较符合实际情况的 。
Based on the basic knowledge of the mechanism of prestressed anchor,the paper analyses the shortcoming of some conventional numerical simulating schemes.A new scheme is put forward to simulate not only the procedure of setting prestress but also the changing status of the anchor's inner force,which is the outstanding feature of the scheme.After comparing the calculating results and the measured values relevantly,the scheme is proved to be suitable and credible.
出处
《西部探矿工程》
CAS
2003年第6期17-19,共3页
West-China Exploration Engineering
关键词
预应力锚杆
锚固支护
数值模拟
有限元
基坑工程
prestress
anchored structure
numerical simulating
finite element method(FEM)
