摘要
咬合桩支护作为基坑支护常见的支护形式,可以挡土止水二合一,规范中的计算方法不考虑素桩的挡土作用。在实际工程应用中,素桩作为混凝土构件具备-定的承载能力。文章从实际工程出发,结合现场实际监测数据,引入优化变量k_(1)、k_(2)、k_(3)通过不同桩径、不同桩间距和不同嵌固长度在满足原设计方案变形控制标准的前提下,对原设计方案进行优化设计,得出最优方案,对其他工程支护方案设计具有一定借鉴意义。
As a common form of support for foundation pits,occlusal pile support can be combined with soil and water stop.The calculation method in the code does not consider the soil-retaining effect of plain piles.In practical engineering applications,plain piles have certain bearing capacity as concrete members.Starting from the actual project,this paper introduces optimized variables k_(1),k_(2),and k_(3)based on the actual monitoring data on the site.Through diferent pile diameters,different pile spacings,and diferent embedded lengths,the original design is carried out under the premise of meeting the deformation control standards of the original design.Optimizing the design and deriving the optimal scheme has certain reference signif.cance for the design of other engineering support schemes.
作者
雍金兵
陈凌超
YONG Jinbing;CHEN Lingchao(Nanjing Nanda Geotechnical Engineering Technology Co,Ltd,Nanjing 210000 China;Zhengzhong Interational Engineering Consulting Co.,Ltd,Nanjing 210000,China)
关键词
咬合桩
基坑支护
设计
优化
occlusal pile
foundation pit support
design
optimization
