摘要
对软土中18m长水泥搅拌桩复合地基,进行了现场单桩静载试验、承压板下有无褥垫层的单桩复合地基载荷试验、四桩复合地基载荷试验及桩中心插12m长微型加劲钢管的单桩复合地基载荷试验,研究了复合地基破坏模式、褥垫层、桩身强度等因素对复合地基承载力的影响,对软土中超长水泥搅拌桩复合地基承载力检验方法及承载力评价提出了建议。
The failure pattern of composite foundation with cement treated column of 18 meters long in soft soil,and the effect of sand cushion and strength of pile on it's bearing capacity are studied by conducting field loading tests of single pile,on single pile with cap and four piles with cap and with or without sand cushion,and on single pile with cap and with a steel tube in the pile. Some suggestion to the loading test and the determination of bearing capacity of composite foundation with long cement treated column in soft soil are given.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2002年第6期675-679,共5页
Chinese Journal of Geotechnical Engineering
基金
国家自然科学基金资助项目(50208012)
关键词
软土
水泥搅拌桩
复合地基
承载力
载荷试验
褥势层
cement treated column
composite foundation
bearing capacity
loading test
sand cushion
