岩土工程学报2011，Vol.33Issue(9)：1469-1476,8.
现浇X形混凝土桩与圆形桩承载性状对比试验研究
Comparative tests on bearing capacity of cast-in-situ X-shaped concrete piles and circular pile
摘要
Abstract
Through the full scale static load model tests on the cast-in-situ X-shaped concrete piles and circular piles with the same cross-section area and circular piles with the same perimeter,the distribution of pile axial force and the development of pile shaft resistance and pile toe resistance are comparatively analyzed,and the load transfer mechanism of the X-shaped piles is studied.The test results show that： for the X-shaped piles,the ultimate bearing capacity and the bearing capacity per unit volume of pile concrete are both 1.32 times those of the circular pile in the same area,and 0.84 times and 1.47 times respectively those of the circular piles with the same perimeter.From the view of improving the bearing capacity of the pile and saving the amount of pile concrete,the X-shaped pile is a new pile with is high vertical bearing capacity and low cost,therefore it has the extremely high promotion and application value in soft soil foundation.关键词
现浇X形混凝土桩/静载荷试验/荷载传递机理/极限承载力Key words
cast-in-situ X-shaped concrete pile/static load test/load transfer mechanism/ultimate bearing capacity分类
建筑与水利引用本文复制引用
张敏霞,刘汉龙,丁选明,王智强..现浇X形混凝土桩与圆形桩承载性状对比试验研究[J].岩土工程学报,2011,33(9):1469-1476,8.基金项目
江苏省自然科学基金创新学者攀登项目 （）
江苏省青蓝工程创新团队项目 （）
教育部博士点基金项目 （）
河海大学中央高校基本科研业务费与专项资金项目 （）
