摘要
通过对CFG桩复合地基与钢筋混凝土独立基础计算理论和计算方法进行梳理和理论分析,并结合同一框架结构单元采用不同基础埋深工程设计算例,运用现代化计算机辅助设计技术,详细论述CFG桩复合地基与钢筋混凝土独立基础设计计算全过程。工程设计实践和研究表明,相同的CFG桩端标高和面积置换率也适用于不同基础埋深的CFG桩复合地基和基础结构设计。利用所提出的现代化计算机辅助设计技术,考虑不同基础埋深、基底下土层厚度分布和相邻基础荷载影响及选用对应于每层土实际应力状态的天然地基压缩模量的CFG桩复合地基变形计算方法,既符合工程实际情况,又满足规范要求。
The calculation theories and calculation methods for cement fly-ash gravel( CFG) pile composite foundation and reinforced concrete independent foundation were reviewed and theoretically analyzed. Combined with the same frame structure unit with different foundation depths in different engineering design examples,calculation whole process of CFG pile composite foundation and reinforced concrete independent foundation design was introduced in detail by using modern computer aided design technique. Engineering design practice and research show that the same CFG pile tip elevation and area replacement ratio are also applicable to CFG pile composite foundation and foundation structure design with different foundation depths. Using the proposed modern computer aided design technique and taking effects of foundation depth,substrate soil thickness distribution and adjacent foundation load into consideration,the proposed CFG pile composite foundation deformation calculation method adopted compression modulus of natural foundation corresponding to the practical of stress state of each layer of soil,which is consistent with the actual situation of the project and meets the requirements of specifications.
出处
《建筑结构》
CSCD
北大核心
2015年第11期75-80,共6页
Building Structure
关键词
CFG桩复合地基
钢筋混凝土独立基础
基础埋深
土层分布
计算全过程
应力状态
CFG pile composite foundation
reinforced concrete independent foundation
foundation depth
soil distribution
calculation whole process
stress state
