摘要
软土地基中,道路平台的建设会由于河道软土地基的天然特性带来差异沉降等多方面的影响。以河道中道路平台为研究对象,采用三维有限元数值模拟的方法,对是否采用道路平台底部设计桩基加固措施情况进行计算,并就道路平台的沉降及竖向应力情况进行对比分析。结果表明,与不设桩基的情况相比,采用微型桩加固后,道路平台左右两侧的不均匀沉降量明显减少,平台底板的竖向应力值分布相对更加均匀。进一步说明桩基加固软土地基,能有效控制上部结构的不均匀沉降及竖向应力分布情况。
Road platform construction in soft soil foundation, it is bound to be due to the river soft soil foundation of the natural characteristics of differential settlement and other aspects of the impact. The river road platform as the research object, using three -dimensional finite element numerical simulation method, road platform at the bottom of the pile foundation reinforcement measures and whether or not the calculation and platform of road and the settlement of the vertical should force were analyzed and compared, results show that:and design of pile foundation compared with micro pile re-inforcement, platform of Road on both sides of the uneven settlement decreased significantly, bottom plate of the platform of the vertical stress value distribution is relatively more uniform. Further shows that the pile foundation reinforcement of soft soil foundation, can effectively control the uneven settle-ment and vertical stress distribution of the structure.
出处
《水利科技与经济》
2016年第5期19-23,共5页
Water Conservancy Science and Technology and Economy
关键词
河道
软土地基
桩基础
沉降
基底应力
river
parking platform
pile foundation
settlement
stress
influence
