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桩基静载荷试验方法比较研究

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为进一步明确桩基静载荷试验中快速法与慢速法之间的内在联系与异同点,文中通过理论研究和案例分析两种方式对其展开深入研究.结果表明,两种方法Q-s曲线均可分为压密变形阶段(弹性变形阶段)、局部剪切破坏阶段(弹塑性变形阶段)和整体破坏阶段(塑性变形阶段)三个阶段.此外,快速法与慢速法之间各级荷载下的沉降量差值具有较强的相关性,文中根据案例试验内容给出快速法与慢速法之间沉降量关系的经验公式.
Comparative Study on Static Load Test Methods of Pile Foundation
In order to further clarify the internal relations and similarities and differences between the fast method and the slow method in the static load test of pile foundation,this paper conducts in-depth research through theoretical research and case analysis.The research results show that the Q-s curves of the two methods can be divided into compaction deformation stage(elastic deformation stage),local shear failure stage(elastic-plastic deformation stage)and overall failure stage(plastic deformation stage).There is a strong correlation between the set-tlement difference under different loads between the fast method and the slow method.According to the content of the case test,this paper gives the empirical formula of the settlement relationship between the fast method and the slow method.

Pile foundation detectionStatic load testFast methodSlow speed methodEmpirical formula

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广东稳固检测鉴定有限公司,广东 广州 510000

桩基检测 静载荷试验 快速法 慢速法 经验公式

2024

江西建材
江西省建材科研设计院

江西建材

影响因子:2.247
ISSN:1006-2890
年,卷(期):2024.(9)