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(遼寧工程技術(shù)大學(xué)力學(xué)與工程學(xué)院， 阜新 123000)

［摘要］提出了一種利用數(shù)值模擬和完整指數(shù)函數(shù)模型求解單樁基礎(chǔ)極限承載力的算法。利用ANSYS計(jì)算不同樁頂軸壓荷載作用下的樁頂沉降并得到P-S曲線，利用MATLAB完整指數(shù)函數(shù)模型擬合P-S曲線，并得出單樁的極限承載力。與太沙基公式計(jì)算結(jié)果、ANSYS計(jì)算的P-S曲線的沉降40mm對(duì)應(yīng)的極限承載力相比較可知，提出的算法是合理和易于應(yīng)用的。

［關(guān)鍵詞］數(shù)值模擬; P-S曲線; 單樁極限承載力

中圖分類號(hào)： TU473.1+1 文獻(xiàn)標(biāo)識(shí)碼： A文章編號(hào)：  1002-848X(2016)S1-0799-04

Determination of single pile ultimate bearing capacity with numerical simulation

 and integrated exponential function model

Niu Wenjie, Liu Mang

(College of Mechanics and Engineering Department, Liaoning Technical University, Fuxin 123000, China)

Abstract: A new algorithm was proposed to determine single pile ultimate bearing capacity with numerical simulation and integrated exponential function model. The pile head settlement under different vertical compressive load P on the head was got with ANSYS software, and P-S curve was plotted. With integrated exponential function model and MATLAB software, single pile ultimate bearing capacity was determined. It was compared with the result from Terzaghi′s equation, and result from the P-S curve where ultimate bearing capacity is the P value corresponding to pile head settlement of 40mm. Comparison indicates the proposed new algorithm is acceptable and applicable.

Keywords: numerical simulation; P-S curve; single pile ultimate bearing capacity

作者簡(jiǎn)介： 牛文杰，博士，副教授，Email：nwj1982@sohu.com。

*遼寧工程技術(shù)大學(xué)博士科研啟動(dòng)基金(11-415)。