普兰店海湾特大桥深水岩溶区桥梁基础设计

摘要

以哈大客运专线普兰店海湾特大桥为背景,研究岩溶地区基础设计的计算办法、施工方法的指导性原则、建议措施,总结分析适应岩溶地区的桩基计算基底溶洞顶板安全厚度的方法及岩溶处理措施.桩基设计保证了基础安全,对溶洞的有效处理,桩基成孔质量得到了保证.%On the basis of Pulandian gulf extra-long bridge on Harbin-Dalian Passenger Dedicated Line, this paper discusses the design calculation method and the guiding principles and proposed measures for the construction of foundations in Karst area, summarizes and analyzes the applicable calculation method for calculating the required thickness of Karst cave roof slab of pile foundation in Karst area, and the measures to treat karst. The design of pile foundation has guaranteed the safety of foundation and the efficiency of karst cave treatment, and the quality of pile hole.