| 交叉异型深基坑支护体系受力分析 |
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| 引用本文： | 冯涛.交叉异型深基坑支护体系受力分析[J].水利与建筑工程学报,2012,10(5):91-95. |
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| 作者姓名： | 冯涛 |
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| 作者单位： | 西北电力建设第四工程公司,陕西西安,710038 |
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| 摘 要： | 以长春某地铁车站深基坑为例,利用MADIS.GTS数值分析软件,按照深基坑不同支护方案,对基坑支护体系受力进行模拟计算,提取支撑内力的计算结果并进行分析,得出支撑轴力随着支撑的预加轴力增大而减小;随着支撑层数的增加,下部支撑的轴力逐渐消散,并对结果进行相互对比分析,结果表明支撑的轴力值随着钢支撑预加应力和支撑纵向道数增加而降低,但降低幅度越来越小。
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| 关 键 词： | 深基坑支护 预应力 轴力 数值模拟 |
Analysis on Stress of Support System of Cross-heterogeneous Deep Foundation Pit |
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| FENG Tao.Analysis on Stress of Support System of Cross-heterogeneous Deep Foundation Pit[J].Journal of Water Resources Architectural Engineering,2012,10(5):91-95. |
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| Authors: | FENG Tao |
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| Affiliation: | FENG Tao(Fourth Engineering Corporation of Northwest Electric Power Construction,Xi’an,Shaanxi 710038,China) |
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| Abstract: | Taking the deep foundation pit of a subway station in Changchun for example,the stress of its support system is simulated and calculated under different support schemes by using the numerical analysis software MIDAS.GTS.The calculation results of support inner force are extracted,it is obtained through observing and analyzing that the support axial force would be decreased with the increase of pre-axial force,and the support axial force in bottom would be dissipated with the increase of support layers.Then it is obtained through comparing and analyzing that the support axial force would be reduced with the increase pre-stressing and longitudinal support number,but the reducing margin would be getting smaller and smaller. |
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| Keywords: | bracing of deep foundation pit pre-stressing axial force numerical simulation |
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