摘要
利用载荷试验研究了CFG桩桩顶的中粗砂、砾砂、碎石褥垫层的桩上应力比。对褥垫层性质及厚度进行了讨论。并建议CFG桩的桩顶褥垫层采用10～20cm厚，碎石层为宜。
The stress ratio of CFG pile and soil which cushion used medium-coarse sand gravelly sand or cobbles has been studied. A disscussion about cushion character and thickness has been given.
出处
《岩土工程技术》
1998年第1期48-50,共3页
Geotechnical Engineering Technique
