基于Abaqus比較2種樁-土接觸關(guān)系建模方法

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中圖分類號：TU943；TP391.99 文獻(xiàn)標(biāo)志碼：B

Comparison of two modeling methods for pile-soil contact relationship based on Abaqus

TANG Weizhi ， LU Hui2，YAN Wenchang'，YAN Chao ， CAI Yongxiang HUANG Houxu1，3， WU Xuhui4， YIN Shuai1，3，5

（1.School of Civil Engineering，Anhui Jianzhu University，Hefei 230601，China；2.China Water Huaihe Planning， Design and Research Co.，Ltd.，Hefei 230601，China；3.Anhui Instituteof Inteligent Underground Detection Technology， Hefei 230601，China；4.Anhui Branch，Huazhong Construction Co.，Ltd.，ChinaConstruction Eighth Engineering Division Co.，Ltd.，F(xiàn)uyang 2360O，Anhui，China；5.Anhui Green Mine Enginering Research Center，Hefei 230088，China）

Abstract： Based on Abaqus， the single pile examples from diffrent sites are modeled using thin-layer coeffcient method and master-slave surface contact method to simulate different pile-soil contact surfaces. The mechanical bearing characteristics under vertical load are analyzed， and the applicabilities of the two contact surface modeling methods are compared and analyzed from five aspects：modeling complexity， calculation accuracy，calculation time，soil composition，and pile-soil contact surface parameters.The results indicate that： both modeling methods for pile-soil contact surfaces have high accuracy；the modeling process of thin-layer coeficient method is simple and the calculation speed is fast；the influence of soil internal friction angle on the two methods is basically the same，and the master-slave surface contact method is more dependent on the friction coefficient of the pile-soil contact surface.

Key words：pile-soil contact；thin-layer coefficient method；master-slave contact method；numericalsimulation； contact surface parameter

0 引言

當(dāng)采用數(shù)值模擬開展樁體承載特性的相關(guān)研究時，樁與土之間相互作用關(guān)系的建立是最為重要的步驟之一。（剩余5800字）