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| 1 | Discrete simulation and micromechanical analysis of two-dimensional saturated granular media显示文摘In this study,a novel approach to incorporate the pore water pressure in the discrete element method(DEM) to comprehensively model saturated granular media was developed.A numerical model was constructed based on the DEM by implanting additional routines in the basic DEM code;pore water pressure calculations were used with a two-dimensional(2D) model to simulate the undrained behavior of saturated granular media.This model coupled the interaction of solid particles and the pore fluid in saturated granular media.Finally,several 2D undrained shear tests were simulated.The test results showed that the model could predict the response of the saturated granular soil to shear loading.The effect of initial compaction was investigated.Biaxial tests on dense and loose specimens were conducted,and the effect of the initial density on the change in shear strength and the volume change of the system was investigated.The overall behavior of loose and dense specimens was phenomenologically similar to the real granular material.Constant volume tests were simulated,and the results were compared to those from the coupled model.Induced anisotropy was micromechanically investigated by studying the contact force orientation.The change in anisotropy depended on the modeling scheme.However,the overall responses of the media obtained using the coupled and constant volume methods were similar. | Younes Khalili Ahmad Mahboubi | 2014 | Particuology2014，12，4： | 5 |
| 2 | Experimental Study of the Mechanical Behavior of Plastic Concrete in Triaxial Compression显示文摘 | Ahmad Mahboubi All Ajorloo | 2005 | Cement and Concrete Research2005，35，： | 1 |
| 3 | Experimental study of the mechanical behavior of plastic concrete in triaxial compression 显示文摘 | AHMAD MAHBOUBI ALI AJORLOO | 2005 | Cement and Concrete Research2005，，35： | 1 |
| 4 | Experimental study of the mechanical behavior of plastic concrete in triaxial compression 显示文摘 | Mahboubi Ahmad Ajorloo Ali | 2005 | Cement and Concrete Research2005，5，2： | 1 |
| 5 | Analysis of theEffect of Soil-Pile Group Separation on the Transferand Impedance Functions for the Plastic Soil Model显示文摘 | Mahboubi Ahmad Panaghi Kamran | 2010 | International Journal of Earth Sciences and Engineering2010，3，4： | 1 |
| 6 | Experimental Study of the Mechanical Behavior of Plastic Concrete in Triaxial Compres-sion显示文摘 | Ahmad Mahboubi Ali Ajorloo | 2005 | Cement and Concrete Research2005，35，： | 1 |
| 7 | Experimental study of the mechanical behavior of plastic concrete in triaxial compression 显示文摘 | Mahboubi Ahmad and Ajorloo Ali | 2005 | Cement and Concrete Research2005，35，2： | 1 |
| 8 | A discrete model for simulating shear strength and deformation behaviour of rockfill material, considering the particle breakage phenomenon显示文摘 | Ebrahim Alaei Ahmad Mahboubi | 2012 | Granular Matter2012，，6： | 1 |
| 9 | A discrete model for simulating shear strength and deformation behavior of rockfill material,considering the particle breakage phenomenon显示文摘 | EBRAHIM Alaei AHMAD Mahboubi | 2012 | Granular Matter2012，，14： | 1 |
| 10 | Experimental study of the mechanical behavior of plastic concrete in triaxial compression 显示文摘 | Ahmad Mahboubi Ali Ajorloo | 2005 | Cemet and Conerete Researeh2005，35，2005： | 1 |
| 11 | 包裹式土工格栅-砂土相互作用对条形基础承载力-沉降特性的影响研究显示文摘高质量材料的使用以及土层的处理是保持建筑结构稳定并保证其设计寿命的重要因素,尤其是在垫层较差的地区。对未加筋、土工格栅加筋和折叠土工格栅加筋细砂上方的条形基础进行试验研究,以评估平面土工格栅层数、折叠土工格栅在土中的位置、土工格栅折叠层的厚度、折叠土工格栅的搭接长度、土工格栅折叠层的间距以及土工格栅的层数等因素的影响。与平面土工格栅加筋砂相比,折叠土工格栅加筋砂在静载作用下的性能更好。此外,在基础下方一定深度处存在一个临界区域。在该区域内,折叠土工格栅会导致基础沉降量增加。这一临界区域会影响较小基础宽度处的砂土特性。试验结果表明,折叠土工格栅的最优埋置深度为基础宽度的0.41,厚度为基础宽度的0.20。增加折叠土工格栅的层数可以明显减少沉降比。该试验表明,包裹式加筋可以显著提高结构框架的承载能力,减少沉降,并使得它们可以在狭小的空间中使用。 | AHMAD Hussein MAHBOUBI Ahmad NOORZAD Ali HOSEINI Mohammad Hosein | 2022 | 岩土力学2022，43，9： | 0 |
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