抗拔桩在抗浮工程中的研究进展  

Research Progress of Uplift Piles in Anti-floating Engineering

作　　者：白晓宇[1] 秘金卫 王雪岭 张广亮 乔永胜 许绍帅 张明义[1] BAI Xiao-yu;BI Jin-wei;WANG Xue-ling;ZHANG Guang-liang;QIAO Yong-sheng;XU Shao-shuai;ZHANG Ming-yi(School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China;China Railway Construction Hengcheng Industry Co., Ltd., Zhuhai 519030, China;Shanghai Tongshi Technology Co., Ltd., Shanghai 201203, China;Qingdao Zhongjian United Group Co., Ltd., Qingdao 266100, China;Gansu Railway Comprehensive Engineering Survey Institute Co., Ltd., Lanzhou 730000, China)

机构地区：[1]青岛理工大学土木工程学院,青岛266033 [2]中铁建恒诚实业有限公司,珠海519030 [3]上海同是科技股份有限公司,上海201203 [4]青岛中建联合集团有限公司,青岛266100 [5]甘肃铁道综合工程勘察院有限公司,兰州730000

出　　处：《科学技术与工程》2022年第17期6781-6789,共9页Science Technology and Engineering

基　　金：山东省自然科学基金重点项目(ZR2020KE009);国家自然科学基金(51708316);山东省博士后创新项目(201903043);中国博士后科学基金面上项目(2018M632641)。

摘　　要：随着城市地下空间的大规模开发,基础埋深不断增大,地下水的浮力也随之加大,易导致施工过程中基坑上浮或影响地下结构正常使用。抗拔桩因施工时对桩周岩土体扰动较小,工艺简单,施工便捷,抗浮效果好等优势,被广泛应用于抗浮工程中。目前,抗拔桩的力学特性、承载能力和变形特征等是现阶段抗拔桩在抗浮工程中的研究热点。主要从抗拔桩的作用机理、常见的破坏形式及极限承载力等方面进行了归纳分析,梳理了抗拔桩在数值模拟方面的研究进展,提出了抗拔桩在抗浮工程中存在的一些问题,并为抗拔桩在地下结构抗浮领域的未来发展提供了新的思路。With the great development of urban underground space,both the buried depth of the foundation and the buoyancy of the groundwater continue to increase,which may easily cause the foundation pit to float during the construction process or even affect the normal use of the underground structure.Due to the small disturbance to the rock and soil around the pile during construction,the anti-uplift pile has advantages over simple technology,convenient construction,and good anti-floating effect.That is why it is widely used in anti-floating projects.At present,the mechanical properties,bearing capacity and deformation characteristics of uplift piles are the research hotspots of uplift piles in anti-floating engineering at this stage.The action mechanism of the uplift pile,common failure forms and ultimate bearing capacity were mainly summarized and analyzed,some problems of uplift pile in anti-floating engineering were put forward,which provides a new idea for the future development of uplift pile in the field of anti-floating of underground structure.

关 键 词：抗拔桩 抗浮 破坏形式 承载力 数值模拟 

分 类 号：TU47[建筑科学—结构工程]