岩溶地区端承摩擦桩应用实例  

Application Example of End-Bearing Friction Pile in Karst Area

作　　者：张霖 曹聚凤 赵亮 ZHANG Lin;CAO Ju-feng;ZHAO Liang(The 111 Geological Brigade of Bureau of Geology and Mineral Exploration and Development Guizhou Province(Guizhou Geological Engineering Investigation Design and Research Institute Co.Ltd.),Guiyang 550081,China)

机构地区：[1]贵州省地质矿产勘查开发局111地质大队(贵州地质工程勘察设计研究院有限公司),贵阳550081

出　　处：《工程建设与设计》2024年第9期23-25,共3页Construction & Design for Engineering

基　　金：贵州省地矿局地质科研基金项目(黔地矿科合[2020]15号)。

摘　　要：以贵州省毕节市某项目端承摩擦桩的应用为例,从工程地质条件、水文地质条件、不良地质作用、设计参数建议和基础方案选择等方面对岩溶地区桩基础设计和施工时的注意事项进行了分析。当基岩埋藏较深,桩端无较好持力层时,采用端承摩擦桩不仅能够提高单桩承载力,而且能够节约成本。Taking the application of end-bearing friction pile in a project in Bijie City,Guizhou Province as an example,this paper analyzes the matters needing attention in the design and construction of pile foundation in karst areas,from the engineering geological conditions,hydrogeological conditions,adverse geological effects,design parameter suggestions and foundation scheme selection,When the bedrock is deep buried and there is no good bearing layer at the pile end,using the end-bearing friction pile can not only improve the bearing capacity of a single pile,but also save costs.

关 键 词：岩溶 端承摩擦桩 承载力 应力扩散 

分 类 号：TU753.3[建筑科学—建筑技术科学]