摘要
通过对桩端未注浆和桩端后注浆的试桩静荷载试验、轴力测试等试验分析,揭示软土地区超长钻孔灌注桩的荷载传递规律和承载性状。得出结果表明:采用桩端注浆工艺加固桩端土,可大幅度提高单桩承载力。
By the experimental analysis of static loading test and axial-force test of prior grouting and post grouting at the pile tip,the regulation of load transferring and bearing behavior of extra-long bored pile in soft soil area are illustrated.The results show that the technique of grouting adopted to strengthen pile tip soil is able to greatly increase the bearing capacity of single pile.
出处
《勘察科学技术》
2010年第4期8-10,24,共4页
Site Investigation Science and Technology
关键词
超长钻孔灌注桩
静荷载试验
摩阻力
荷载传递
extra-long bored plie
static loading test
friction resistance
load transfer
