岩溶地区通讯塔桩基结构应力与变形特征研究  

Research on Stress and Deformation Characteristics of Pile Foundation System of Communication Tower in Karst Area

作　　者：李艳 董建辉 吴启红 张妍 王钟箐 LI Yan;DONG Jianhui;WU Qihong;ZHANG Yan;WANG Zhongjing(School of Architecture and Civil Engineering,Chengdu University,Chengdu 610106,China)

机构地区：[1]成都大学建筑与土木工程学院,四川成都610106

出　　处：《成都大学学报（自然科学版）》2020年第1期99-102,共4页Journal of Chengdu University（Natural Science Edition）

摘　　要：在岩溶区进行通信站塔架工程建设时经常采用桩基础,其顶板支撑型桩基础稳定性关系到上部结构设备的安全.采用FLAC^3d数值模拟手段,分析某岩溶区通信塔桩基对下伏岩溶空穴顶板的影响,以及顶板在桩基荷载作用下的受力与变形特征,探讨了桩底深度、桩基沉降和顶板位移之间的关系.Pile foundation is often adopted when communication frame is constructed in Karst Area.Stability of roof supporting pile foundation is related to the safety of the upper structure of the equipment.The research on the influence of cavity roof of the underlying Karst on the communication tower's pile foundation in the Karst Area is done by using FLAC^3d numerical simulation method in the tex.The stress and deformation characteristics of the roof under the pile foundation loading are analyzed.Besides,the relations among the depth of the pile,the pile foundation?s settlement,and the displacement of roof are discussed.The conclusion in the paper can be used for reference for similar engineering.

关 键 词：岩溶顶板 桩基 稳定性 数值模拟 FLAC^3D 

分 类 号：R256.1[医药卫生—中医内科学]