钢板桩围堰结构设计与应用

Structural Design and Application of Steel Sheet Pile Cofferdam

本文以湖北省石首市建宁大桥9#墩为研究对象,对钢板桩围堰进行设计和应用分析。结合工程实践,采用理论计算和数值模拟相结合的方式,对钢板桩围堰的设计进行分析,并对钢板桩入土深度、坑底隆起稳定性、钢板桩内力、圈梁和支撑进行了详细计算。结果表明,钢板桩围堰选材合理,钢板桩的入土深度确定为7.741 m,抗隆起稳定性满足设计和应用要求,圈梁及支撑的内力和变形符合设计要求。

Taking the No.9 pier of Jianning Bridge in Shishou City,Hubei,this paper mainly analyzes the design and application of steel sheet pile cofferdam.Combined with engineering practice,the design of steel sheet pile cofferdam is analyzed by means of theoretical calculation and numerical simulation.The penetration depth of steel sheet pile,uplift stability of pit bottom,internal force of steel sheet pile,ring beam and support are calculated in detail.The results show that the material selection of the steel sheet pile cofferdam is reasonable,the penetration depth of the steel sheet pile is 7.741 m,the anti-uplift stability meets the design and application requirements,as well as the internal force and deformation of the ring beam and support meet the design requirements.