摘要
通过室内模型试验,分析了砂卵石地层中不同压浆方式下的灌注桩的荷载传递特点,桩端阻力、侧阻的变化规律及二者荷载分担关系。试验表明,砂卵石地层灌注桩采用后压浆技术,能显著提高其承载能力,减小沉降。所得结论真实反映模型试验结果,对工程实践及理论研究起到一定指导作用。
Through design indoor model test, study and analyzed the load transfer characteristics of pile under different grouting modes in the sandy pebble stratum, change rules of pile tip resistance, lateral resistance and the changes of relations between the two loadsharing, experiments show that pile with grouted in sandy pebble stratum can significantly enhance its carrying capacity, reducing the settlement. The conclusions reflect the true model test results ,can play an instructional role for the engineering practice and theoretical research.
出处
《四川建筑科学研究》
北大核心
2009年第5期83-85,89,共4页
Sichuan Building Science
关键词
灌注桩
后压浆
模型试验
砂卵石
pile
post-grouting
model test
sandy pebble stratum
