【作者】 向先超； 汪稔； 朱长歧；

【Author】 XIANG Xianchao~①WANG Ren~②ZHU Changqi~②(①China Three Gorges University Key Laboratory of Geological Hazards on Three Gorges Reservoir Area,Ministry of Education,Yichang 443002) (②Key Laboratory of rock and soil Mechanics,Institute of Rock and soil Mechanics,Chinese Academy of Sciences,Wuhan 430071) XIANG Xianchao~①WANG Ren~②ZHU Changqi~②(Institute of Rock and soil Mechanics,Chinese Academy of Sciences,Wuhan 430071)

【机构】 三峡大学三峡库区地质灾害教育部重点实验室； 中国科学院武汉岩土力学研究所岩土力学重点实验室；

【摘要】 厦门海沧大道位于海沧区东海岸的海滩区,路基中海相淤泥分布广泛,厚度变化大。在淤泥厚度较大的路段,粉喷桩没有穿透淤泥层,形成了"悬浮桩"。本文对海沧大道粉喷桩复合地基进行了现场试验研究,分析了桩、土的沉降变形和内部变形特征,桩、土应力比,并用载荷试验、静力触探试验、扁铲侧胀试验评价了桩、土的力学特性。更多还原

【Abstract】 Xiamen haicang road is located in seaside area,where silt distributes widely,and the thickness of silt is changed greatly in differently sites.The deep jetting mixing piles were not penetrate whole silt layer in thick silt places,and become floating piles.Through in -situ experiments,the settlement and internal deformation of pile and silt,the stress ratio between pile and soil were studied.Then treatment result was evaluated by bearing test, spt test and dmt test.更多还原