垂直护岸板桩受力及变形特性现场试验研究  

Insitu Research on the Characteristics of Stress and Deformation of Vertical Sheet Pile of Revetment

作　　者：张建强 卜一峰 李若华[2] ZHANG Jian-qiang;BU Yi-feng;LI Ruo-hua(Hangzhou Jiangdong Industrial Agglomeration District Land Planning,Hangzhou 311225,China;Zhejiang Institute of Hydraulics and Estuary,Hangzhou 310020,China)

机构地区：[1]杭州大江东产业集聚区规划国土建设局,杭州311225 [2]浙江省水利河口研究院,杭州310020

出　　处：《中国农村水利水电》2018年第9期166-170,175,共6页China Rural Water and Hydropower

摘　　要：依托平湖和湖州的航道护岸工程,开展现场试验,分析U形钢筋混凝土板桩和U形钢板桩的变形和受力特性及岸后土体的位移规律。结果显示:规范土压力计算方法与本研究中的2种板桩的实测值差距较大;钢筋混凝土板桩后方回填土后,板桩的受拉区应力明显增大,验证了钢筋主要是发挥其优良的受拉承载性能;钢板桩的施工过程在垂直于板桩墙的方向上的沉降要比平行于板桩墙方向的沉降要小;钢筋混凝土板桩和钢板桩从桩尖到桩顶方向上,横向位移均呈现出先增大后减小的分布规律。In this paper,based on the project of waterway revetment,by carrying out experiments insitu,characteristics of deformation and stress between U-mode reinforced concrete sheet pile and U-mode steel sheet pile are compared,and analyzing the law of displacement is analyzed. Results show that the distribution of soil pressure shows the law with big in the middle and small at both ends. There are significant differences between the results of soil pressure with standard calculation method and measured values. After filling behind the sheet pile,stress in the tension zone of sheet pile increases obviously,it is explained that the steel mainly exerts its performance of excellent tensile.During the construction of the sheet pile,the settlement in vertical direction of sheet-pile wall is smaller than in horizontal direction. The horizontal movement of soil increases first and then decreases along the direction from the pile bottom to its top.

关 键 词：U形板桩 板桩受力 板桩变形特性 土压力 沉降 水平位移 

分 类 号：TV861[水利工程—水利水电工程]