胡向东, 舒畅. 考虑FGM特性的双排管竖井冻结壁应力场分析[J]. 工程力学, 2014, 31(1): 145-153. DOI: 10.6052/j.issn.1000-4750.2012.09.0651
引用本文: 胡向东, 舒畅. 考虑FGM特性的双排管竖井冻结壁应力场分析[J]. 工程力学, 2014, 31(1): 145-153. DOI: 10.6052/j.issn.1000-4750.2012.09.0651
HU Xiang-dong, SHU Chang. STRESS FIELD ANALYSIS OF FUNCTIONALLY GRADED MATERIAL FROZEN SOIL WALL IN DOUBLE-ROW-PIPE SHAFT FREEZING[J]. Engineering Mechanics, 2014, 31(1): 145-153. DOI: 10.6052/j.issn.1000-4750.2012.09.0651
Citation: HU Xiang-dong, SHU Chang. STRESS FIELD ANALYSIS OF FUNCTIONALLY GRADED MATERIAL FROZEN SOIL WALL IN DOUBLE-ROW-PIPE SHAFT FREEZING[J]. Engineering Mechanics, 2014, 31(1): 145-153. DOI: 10.6052/j.issn.1000-4750.2012.09.0651

考虑FGM特性的双排管竖井冻结壁应力场分析

STRESS FIELD ANALYSIS OF FUNCTIONALLY GRADED MATERIAL FROZEN SOIL WALL IN DOUBLE-ROW-PIPE SHAFT FREEZING

  • 摘要: 对双排管竖井冻结所形成的冻结壁等效成材料性质沿厚度呈梯形分布的功能梯度材料(FGM)无限长厚壁圆筒,通过求解均布荷载下该类厚壁圆筒的弹性解析解,并利用摩尔-库伦屈服准则求解其弹塑性解析解。根据解析解,进行双排管竖井冻结壁的应力场分析,将分析结果与均质冻结壁模型进行对比,提出对设计施工具有参考价值的建议。

     

    Abstract: The frozen soil wall in double-row-pipe shaft freezing can be equivalent to an infinite-long functionally graded material (FGM) thick cylinder with properties that are trapezoid-shaped distributed through the thickness. By analytically solving this kind of thick cylinder under a uniform load, the elastic analytical solution was obtained. Meanwhile, the plastic analytical solution was derived by employing Mohr-Coulomb yield criterion. Based on the analytical solutions mentioned, the stress field of frozen soil wall in double-row-pipe shaft freezing was analyzed. The result was further compared with that of a homogeneous model to reflect some mechanical characteristics of frozen wall with FGM property. Finally, some suggestions regarding to the design and construction of frozen soil wall were proposed.

     

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