摘要
桩端压力注浆明显改善了灌注桩桩端持力层和桩周土体的力学性能,提高了桩端承力和侧阻力,大大改善了灌注桩荷载传递性能,使灌注桩的综合承载力得到大幅度提高。文章介绍灌注桩桩端注浆的研究成果,结合工程实例探讨了桩端注浆提高灌注桩单桩承载力机理及灌注桩注浆设计的优化方法。
This paper introduces the results of research on large - diameter bored - pile with Grouted end in actual engineering project. Mechanisms of raising bearing capacity and optimization method for end grouting are discussed in the paper, End grouting increases mechanics behavior of pile end bearing layer and soils surrounding the bored piles, increases not only end bearing capacity hut also shift friction, therefore it greatly improves load transfer behavior of bored piles.
出处
《福建建设科技》
2007年第5期3-6,共4页
Fujian Construction Science & Technology
关键词
注浆
灌注桩
承载力
对比
优化
grouted
bored- pile
bearing capacity
comparison
optimization
