杨金尤, 雷金波, 邹永强, 李壮状, 万梦华, 乐腾胜, Pratik Kumar Bhandari. 基于ABAQUS的带帽桩复合地基初始地应力平衡方法浅析[J]. 南昌航空大学学报(自然科学版), 2017, 31(4): 73-78. DOI: 10.3969/j.issn.1001-4926.2017.04.012
引用本文: 杨金尤, 雷金波, 邹永强, 李壮状, 万梦华, 乐腾胜, Pratik Kumar Bhandari. 基于ABAQUS的带帽桩复合地基初始地应力平衡方法浅析[J]. 南昌航空大学学报(自然科学版), 2017, 31(4): 73-78. DOI: 10.3969/j.issn.1001-4926.2017.04.012
YANG Jin-you, LEI Jin-bo, ZOU Yong-qiang, LI Zhuang-zhuang, WAN Meng-hua, YUE Teng-sheng, Pratik Kumar Bhandari. Preliminary Analysis on Initial Stress Balance Method of Composite Foundation with Cap Pile Based on ABAQUS[J]. Journal of nanchang hangkong university(Natural science edition), 2017, 31(4): 73-78. DOI: 10.3969/j.issn.1001-4926.2017.04.012
Citation: YANG Jin-you, LEI Jin-bo, ZOU Yong-qiang, LI Zhuang-zhuang, WAN Meng-hua, YUE Teng-sheng, Pratik Kumar Bhandari. Preliminary Analysis on Initial Stress Balance Method of Composite Foundation with Cap Pile Based on ABAQUS[J]. Journal of nanchang hangkong university(Natural science edition), 2017, 31(4): 73-78. DOI: 10.3969/j.issn.1001-4926.2017.04.012

基于ABAQUS的带帽桩复合地基初始地应力平衡方法浅析

Preliminary Analysis on Initial Stress Balance Method of Composite Foundation with Cap Pile Based on ABAQUS

  • 摘要: 为探究ABAQUS中何种地应力平衡方法在模拟带帽桩复合地基承载性状中的平衡效果更为理想及其适用性。本研究以带帽管桩复合地基模型为例,利用ABAQUS数值建模进行初始地应力平衡效果精准度问题研究,详细阐述了ABAQUS中5种初始地应力平衡方法的应用,并针对自动平衡方法、关键字定义初始地应力法和ODB导入法的平衡效果进行对比分析,得出自动平衡法的平衡效果最佳,为此模型首选地应力平衡方法;关键字定义初始地应力法的平衡效果较理想,但需满足一定的条件方可适用;ODB导入法平衡效果不是很理想,需要反复导入,才可以达到满意结果。该3种方法模拟地应力平衡效果研究为其他类似模型提供了积极的指导作用和参考价值。

     

    Abstract: This paper provides research on the study of the balance effect of stress balance method and the applicability of the method with the help of bearing characteristics of capped pile composite foundation using ABAQUS model. In this paper, a composite foundation model with a capped pipe pile is taken as an example and the accuracy of the effect of initial stress balance by ABAQUS numerical modeling is studied. The application of five initial ground stress equilibrium methods in ABAQUS is described in detail. The automatic balance method, the initial geostress method of keyword definition and the balance effect of ODB import method are comparatively analyzed. The conclusion is drawn that the method of automatic balancing has the best balance effect and is the preferred method of stress balance. The initial geostress method defined by the key word can be applied under certain conditions. The balance effect of ODB import method is not very ideal, which needs to be imported repeatedly to achieve satisfactory results. The study of three methods to simulate the effect of stress balance provides a positive guiding role and reference value for other similar models.

     

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