沉桩过程中超静孔隙水压力的估算方法  

The method of Estimating Excess Pore Water Pressure in Pile Driving

作　　者：李琨 陆伟岗 沈锦儒 LI Kun;LU Weigang;SHEN Jinru(China Energy Group Jiangsu Power Design Institute Co.,Ltd.,Nanjing Jiangsu 211102,China)

机构地区：[1]中国能源建设集团江苏省电力设计院有限公司,江苏南京211102

出　　处：《工程质量》2025年第2期76-81,101,共7页Construction Quality

摘　　要：为了监测沉桩过程中的超静孔隙水压力,埋设的孔隙水压力计,常遭人为破坏而无法继续监测。通过原体试验或事先安排的桩基施工,监测到孔隙水压力的数据,对此数据进行统计分析就能获得沉桩施工产生的超静孔隙水压力与距离的关系,依此可估算出即将施工的基桩会产生多大的超静孔隙水压力。再按相关规程确定的报警值来确定欲沉桩的数量,从而达到科学地安排施工进程,既不担心监测元器件的受损,又能保质保量地完成桩基施工任务。In order to monitor the excess pore water pressure in the process of pile driving,the embedded pore water pressure gauge is often destroyed by manmade and cannot be continuously monitored.Through pile testing,some data are monitored,and the relationship between excess pore water pressure and distance is obtained by statistical analysis of the data.It can be inferred from this,how much excess pore water pressure will be produced by the foundation piles to be constructed.Then according to the relevant regulations to determine the alarm value increase or decrease the number of piles driving.So we can arrange the construction process scientifically,not only don't worry about the damage of monitoring components,but also finish the construction task of Pile Foundation with high quality and quantity.

关 键 词：沉桩 静孔隙水压力 统计分析 警戒值 

分 类 号：TU476[建筑科学—结构工程]