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摘要：
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桩基设计的首要问题之一是确定单柱的承载能力．目前，国内各系统、各部门的地基基础规范一般采用与岩土的物理指标相联系的经获值法家估算单极承载力．本文根据Meyrhof总结并提出的以土力学基本原理为基础的半经验半理论公式，采用土的力学指标、计算分析了从天津市区收集来的24根试桩的单桩承载力，与试桩结果比较后认为：此法有一定的理论基础，且与试桩结果符合较好，有一定的可推广性。
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Determining the bearing capacity of tbe single pile is one of the key points in the design of pile foundation.At present, an empirical value method, releated to the physical properties of geotechnology in the "Specificationof Soil foundation"available to various systems and departments in China. is generally adopted in calculating thebearing capacity of the single pile.This paper, based on the semi-empirical and semi-theoretical relation shipof the fundamental principle of soil mechanics advanced by Mayerhof. calculates and analyzes the bearing capacity of the single pile for the collected 24 test piles from Tianjin urban district according to the mechanical propertfor of soils. Tbrough the comparison to the test re8ults of the piles, it has been found that the above methodhas a rertain tbeoretical basis, well conforms to the test results of the piles and is a practicable method.
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作者简介：
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参考文献：
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[1]童湘,综合报告(三).深基础.中国土木工程学会第三届土力学及基础工程学术会议论文集选集1979.
[2]J.A.FOCHT, M. W. O’NEILL, Diles and Other DeepFoundations, Ⅵ ICOSMFE, 1985
[3]刘金砺编著.桩基础设计与计算.中国建筑工业出版社.1990年
[4]天津市单桩垂直容许承载力经验公式编制说明(初稿)天津市地基基础设计规范桩基编制组.1984.
[5] G.G. Meyerhof, Bearing Capacity and Settleme of DileFoundations,J. Geotech. Eng. Div, No. GT-3,proc.ASCE.1976
[6]钱家欢,殷宗泽.土工原理与计算.水利电力出版社1994年6月。
[7]天津市地基基础设计规范 TBJ1-88
[8]G.G.Meyerhof,A J.Valsangker ,Bearing Capacityof Piles in Layered Soils 9th ICOSMFE, 1977。
[9]土力学与地基.天津大学主编.人民交通出版社1983
[10]曹翊湘,软土地基长桩的结构强度和承载力.软土地基学术讨论会论文集.1980
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