• فهرست مقالات Strip foundation

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        1 - Three-dimensional Finite Elements Numerical Modeling for Strip Foundations on Granular Soils Reinforced with Micro-piles
        Leyla Hamedi Ali Sanaeirad
        In the present study, the performance of micro-piles for the improvement of loose sandy soils under dynamic loading on strip foundations was investigated. For this purpose, finite element numerical method (FEM) by Plaxis3D software has been used to implement loading con چکیده کامل
        In the present study, the performance of micro-piles for the improvement of loose sandy soils under dynamic loading on strip foundations was investigated. For this purpose, finite element numerical method (FEM) by Plaxis3D software has been used to implement loading conditions and evaluate deformations in loose sandy soils below the strip. The modeling process includes geometrical, behavioral models, boundary condition, material properties and dynamic modeling which that implemented on both unreinforced and reinforced strip foundation by micro-pile. Based on the results of the study, it can be well stated that the implementation of micro-piles has been able to improve loose sandy soils in strip foundations under dynamic loading conditions. So, the use of micro-communities in improving soil conditions against similar soils can be suggested. پرونده مقاله
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        2 - Effect of Geogrid on Increasing the Bearing Capacity of Strip Foundations in Sandy Soils
        Farhad Pirmohammadi Alishah Mehdi Kanani Mehdi Mohammadrezaei Sattar Shafiei
        One of the geosynthetics that is used in different parts of the world under surface foundations is geotextile, and relatively valid texts are available on how to use it and increase its load. But other geosynthetics have been geogrids, which have increased the load-bear چکیده کامل
        One of the geosynthetics that is used in different parts of the world under surface foundations is geotextile, and relatively valid texts are available on how to use it and increase its load. But other geosynthetics have been geogrids, which have increased the load-bearing capacity of surface foundations in soft clay and silty loam soils. In this paper, our u/b variations are between 1 and 17.5 with step 205 and in three different b/B modes are 5, 10 and 15. Also, the b/B changes from 0.1 to 2 with a step of 0.25 and in three different u/B modes are equal to 0.25, 0.75 and 1. The purpose of this study is to compare the soil load in different cases of geogrid with non-geogrid. This comparison is also performed by the BCR dimensionless number, which is the result of dividing the armed soil load into the soil load without geogrid. The results of this paper showed that the presence of geogrid increases soil fertility, but from a certain extent onwards, this amount of fertility does not show much difference. In this ratio, the geogrid dimensions are equal to 17.5 times the dimensions of the foundation. The presence of geogrids increased the soil fertility, but from a distance onwards, this amount of fertility does not show much difference. This ratio is equal to 1.75 times the dimensions of the foundation. پرونده مقاله
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        3 - Geotechnical analysis and zoning in order to evaluate the allowed load capacity of Iranshahr city - East of Iran
        Abdolsattar Naroui Mohsen Pourkermani Soheila Bouzari Mahmoud Almasian Afshin Ardalan
        In this paper, the geotechnical analysis was used to zoning of Iranshahr city with an emphasis on the allowed load capacity of the foundation, based on information of 26 boreholes related to projects in the city, has been prepared. Accordingly, the mechanical properties چکیده کامل
        In this paper, the geotechnical analysis was used to zoning of Iranshahr city with an emphasis on the allowed load capacity of the foundation, based on information of 26 boreholes related to projects in the city, has been prepared. Accordingly, the mechanical properties of the soil, according to the results of direct shear tests, shear wave and SPT number are determined and then the bearing capacity for strip foundation with a width of 2 and 1 m and a depth of 5 / A and A is calculated and the bearing capacity map, Authorized. The map shows that in general, the allowable load capacity of the foundation in Iranshahr city, with the exception of the northern and southern parts of the city, is high. پرونده مقاله
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        4 - Numerical modeling and seismic behavior analysis of strip foundation on sandy soils
        Morteza Alemyparvin Mehdi Kouhdaragh
        The present study studies and evaluates the interactions between the states of structure-soil interaction for strip foundations reinforced with pile pedestals under dynamic loads such as earthquakes. To do this, the first design of strip foundation on sandy soil attempt چکیده کامل
        The present study studies and evaluates the interactions between the states of structure-soil interaction for strip foundations reinforced with pile pedestals under dynamic loads such as earthquakes. To do this, the first design of strip foundation on sandy soil attempted to understand the geotechnical behavior of foundation under dynamic loading. The strip foundation is a regular procedure used to improve the dynamic response to earthquakes. As a methodology, the finite element method and Plaxis software were used to simulate the displacement and deformation condition of the soil-structure interaction. According to the results, the program was successfully implemented to model the strip reinforced foundations in saturated sandy soil under dynamic loading. پرونده مقاله