不同荷载条件下浅基础承载力的比较研究

IF 1.7 Q3 ENGINEERING, GEOLOGICAL

Geomechanics and Geoengineering-An International Journal Pub Date : 2021-06-30 DOI:10.1080/17486025.2021.1940310

Sujata Gupta, Anupam Mital

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引用次数: 6

摘要

在本研究中，研究了放置在多层土工格栅加筋砂上的浅矩形基础在两个维度的偏心和斜荷载作用下的行为。研究了加筋层数(N)、偏心率(e/B、e/L)、外加荷载倾角(α)等参数。将双轴土工格栅(Bx20/20)加筋砂与实验室结果进行比较，以N、偏心比和倾斜角为输入参数，采用PLAXIS 3D软件。结果表明:模型地基的极限承载力随外加荷载轴向偏心和倾斜的增大而减小;研究还发现，多层土工格栅加固层使UBC增加了约75%。最后，利用PLAXIS 3D软件对模型试验结果进行分析。实验结果与数值分析结果吻合较好。

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A comparative study of bearing capacity of shallow footing under different loading conditions

ABSTRACT In the present study, the behaviour of a shallow rectangular foundation placed over the multiple layers of the geogrid reinforced sand under eccentric and oblique loads in both dimensions was studied. Various parameters were investigated in this study including the number of reinforced layers (N), eccentricity (e/B, e/L) and inclination of applied load (α). Bi-axial geogrid (Bx20/20)-reinforced sand and laboratory results were compared with PLAXIS 3D software keeping N, eccentricity ratios and angle of inclination as input parameters. The results present that the value of Ultimate Bearing Capacity (UBC) of model foundation found reduced as the axial eccentricity and inclination of applied loads increased. It also found that multiple geogrid-reinforced layers increased the UBC of about 75%. Finally, the model test results were analysed using PLAXIS 3D. A good agreement was originated between the laboratory results and numerical analysis.

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来源期刊

Geomechanics and Geoengineering-An International Journal ENGINEERING, GEOLOGICAL-

CiteScore

3.80

自引率

0.00%

发文量

期刊介绍： Geomechanics is concerned with the application of the principle of mechanics to earth-materials (namely geo-material). Geoengineering covers a wide range of engineering disciplines related to geo-materials, such as foundation engineering, slope engineering, tunnelling, rock engineering, engineering geology and geo-environmental engineering. Geomechanics and Geoengineering is a major publication channel for research in the areas of soil and rock mechanics, geotechnical and geological engineering, engineering geology, geo-environmental engineering and all geo-material related engineering and science disciplines. The Journal provides an international forum for the exchange of innovative ideas, especially between researchers in Asia and the rest of the world.