大吨位部分粘结应力分散型预应力抗拔桩极限承载力预测  

Prediction of Ultimate Bearing Capacity of Large Tonnage Partially Bonded Stress-dispersive Prestressed Uplift Pile

作　　者：郭党生 Guo Dangsheng(Zhongcai Geological Engineering Exploration Institute,Beijing 100102)

机构地区：[1]中材地质工程勘查研究院有限公司,北京100102

出　　处：《江西建材》2021年第10期141-144,共4页Jiangxi Building Materials

摘　　要：目前,部分粘结应力分散型预应力抗拔桩的研究还不够深入,其极限承载力也难以测出,尤其大吨位桩检测其极限承载力具有非常大的难度,除采取估算方式以及现有数据信息,还可通过双曲线、指数以及幂函数等模型等进行外延预测并对比研究。文中对此做了有益尝试,对今后类似工程具有一定指导意义。At present,the research on partially bonded stress dispersed prestressed uplift pile is not deep enough,and its ultimate bearing capacity is difficult to be measured.In particular,it is very difficult to detect its ultimate bearing capacity of large tonnage pile.In addition to the estimation method and existing data information,hyperbola Exponential and power function models are good methods for extension prediction and comparative research.This paper makes a useful attempt and has certain guiding significance for similar projects in the future.

关 键 词：粘结应力 分散型预应力 极限承载力 双曲线模型 指数模型 幂函数模型 

分 类 号：TU4[建筑科学—土工工程]