摘要
为解决软弱土地基深水板桩码头的技术难题,采用不同水泥掺入比的满堂式加固法和水泥搅拌桩加固法对软弱土地基进行处理,并与传统单锚板桩结构进行组合,研究组合式板桩码头结构的受力变形状况。结果表明:不同水泥掺入比满堂式加固软弱土地基主要通过增加刚度抵挡竖向和水平向的荷载,减少作用于前墙的侧向土压力;随着水泥掺入比的增大,整体承受侧向土压力作用增强,前墙的变形显著减小。采用水泥搅拌桩处理软弱土地基,形成的搅拌桩桩体和桩间土共同协调了结构与土的受力状况,且通过限制前墙位移降低了锚杆的内力,减小了前墙内力。
In order to solve the technical problem of deep-water sheet pile wharf on weak soil foundations,which is treated with different cement mixing ratios and cement mixing piles,and combined with the traditional single anchor sheet pile structure,the influence of combined sheet pile wharf structure is studied.The studying results of the force and deformation indicate that the reinforcement of weak soil with different cement mixing ratios can be used to strengthen the weak soil foundation for increasing the stiffness for resisting vertical and horizontal loads,and to reduce the lateral earth pressure on the front wall.With the increase of the mixing ratio,the overall effect of lateral earth pressure is increased,and the deformation of the front wall is significantly reduced.While the cement mixing pile is used to treat weak soil foundation,the mixed pile and the soil between piles are formed to coordinate the stress conditions of structure and soil.By limiting the displacement of the front wall,the internal force of the anchor rod as well as the internal force of front wall is reduced.
作者
秦网根
蔡正银
关云飞
侯伟
QIN Wanggen;CAI Zhengyin;GUAN Yunfei;HOU Wei(Geotechnical Engineering Department,Nanjing Hydraulic Research Institute,Nanjing 210029,China;China Design Group Co.,Ltd.,Nanjing 226004,China;CCCC First Harbor Consultants Co.,Ltd.,Tianjin 300222,China)
出处
《河海大学学报（自然科学版）》
CAS
CSCD
北大核心
2020年第2期158-162,共5页
Journal of Hohai University(Natural Sciences)
基金
南通市科技局计划项目(GY2017013)
江苏省交通运输科技项目(2017T17)。
关键词
组合式板桩码头
水泥掺入比
水泥搅拌桩
受力变形
南通港
combined sheet pile wharf
cement mixing ratio
cement mixing pile
forced deformation
Nantong Port
