摘要
碎石桩复合地基在荷载作用下应力场与位移场分布十分复杂,有试验表明距桩顶某一深度范围有应力集中现象,桩体产生侧向膨胀,现有沉降计算理论具有一定的局限性.根据碎石桩复合地基在深度范围各自的工作性状和桩土变形的连续协调特点,提出了复合地基沉降分3段计算的方法,并建立相应的计算关系式,实际工程沉降观测值与计算结果较为吻合.图3,参10.
The stress and displacement field of stone-column composite ground are very complex under loading. Based upon tests, stress concentration was discovered under some depth to pile' s top. Therefore, the existing theories of settlement computation are limited. In this paper, Settlement computation of stone-column composite ground is divided into three sections according to the working circumstances in different depth and harmonious deformation of pile and Soil, and relations are built correspondingly. The result is consistent with the settlement measurement , so the computational method is demonstrated to be practical. 3figs,10refs.
出处
《湘潭矿业学院学报》
2003年第4期55-57,共3页
Journal of Xiangtan Mining Institute
关键词
碎石桩
鼓胀
变形协调
沉降计算
stone-column
expanding
deformation harmony
settlement computation
