| 圆形基坑围护结构稳定性分析 |
| |
| 引用本文： | 王洪新.圆形基坑围护结构稳定性分析[J].地下空间与工程学报,2011,7(Z2):1653-1659. |
| |
| 作者姓名： | 王洪新 |
| |
| 作者单位： | 上海市第二市政工程有限公司,上海,200065 |
| |
| 摘 要： | 圆形基坑有明显的空间效应,但目前的抗倾覆稳定安全系数计算公式不能考虑圆形基坑的空间效应.推导了圆形基坑的抗倾覆稳定安全系数计算公式,该公式在基坑直径无限大时可以退化为规范推荐公式.以参考文献中模型试验及数值分析结果为基础计算的圆形基坑变形与抗倾覆稳定安全系数关系说明该公式有一定合理性.应用该计算方法分析了圆形基坑直径对...
|
| 关 键 词： | 圆形基坑 抗倾覆稳定 安全系数 直径 插入深度 |
Stability Analysis of Retaining Structure for Circular Foundation Pit |
| |
| Wang Hongxin.Stability Analysis of Retaining Structure for Circular Foundation Pit[J].Chinese Journal of Underground Space and Engineering,2011,7(Z2):1653-1659. |
| |
| Authors: | Wang Hongxin |
| |
| Affiliation: | Wang Hongxin(Shanghai No.2 Municipal Engineering Co.Ltd.,Shanghai 200065,China) |
| |
| Abstract: | Circular foundation pit has obvious spatial effect,but the current safety factor of resisting overturn can’t consider this effect.Calculating formula for safety factor of resisting overturn for circular foundation pit is derived,which can be degenerated as the formula recommended by the specification when the diameter of circular foundation pits is infinite.Based on the model tests and numerical analysis results from the references,a relation between the deformation of circular foundation and stability safety factor against overturning is established,which proves that the formula is rational.Influence of circular excavation diameter on the embedment depth of retaining structure was analyzed applying the formula.Analysis indicates that for a deeper and smaller-diameter foundation pit the influence of diameter on the embedment depth should be considered more.The formula should be popularized in the design and construction of foundation pits. |
| |
| Keywords: | circular foundation pit stability of resisting overturn safety factor diameter embedment depth |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
