基于灰色理论预测黏性土地基单桩极限承载力  

Prepredict the ultimate bearing capacity of single pile based on grey theory

作　　者：王燕 Wang Yan(Changzhou Institute of Building Scince Co.,Ltd.,Changzhou 213015,China)

机构地区：[1]常州市建筑科学研究院集团股份有限公司,江苏常州213015

出　　处：《山西建筑》2022年第17期91-95,共5页Shanxi Architecture

摘　　要：以常州某地区采用桩基工程为例,采用静压桩压桩,压至桩端时最终的压桩力的大小在一定程度上反映了桩端土层的软硬程度,所以有丰富经验的桩基施工单位,常常就会提出质疑,最终压桩力甚至没有设计要求的最大加载量的一半大。但是在实际工程中,有的地区呈现出的最终压桩力确实只有极限承载力的一半,甚至更低,但是最终桩基抗压静载结果均满足设计要求的最大加载量,甚至还有富余。在满足规范的同时,通过灰色理论预测极限承载力,为设计提供有效的安全储备,同时也为业主节约了基础投资成本。In Changzhou pile foundation engineering,for example,using static pressure pile pressure pile,pressure to pile end of the final pile force to a certain extent reflects the pile end soil soft and hard,so for rich experience of pile foundation construction unit,often questioned,the final pile force even no design requirements of the maximum load half.But in practical engineering,some areas show the ultimate pile force only half of the ultimate bearing capacity,even lower,but the final pile compression static load results meet the design requirements of the maximum load,and even surplus.While meeting the specifications,we predict the limit carrying capacity through the gray theory,which provides an effective safety reserve for the design,and also saves the basic investment cost for the owner.

关 键 词：黏性土 静压桩 最终压桩力 单桩极限承载力 灰色理论 

分 类 号：TU473.11[建筑科学—结构工程]