www.public4you.fora.pl

90nike5657fv

Expansive soil slope finite element analysis

Selected as the foundation structure calculation excavation of the border 3 times, using 8-node plane isoparametric element to divide the calculation of the structure, corresponding to different levels of computational structural excavation,[link widoczny dla zalogowanych], excavation of each level is the level of the calculation of structure excavation excavation of the structure to remove the remaining part of the unit in the structure. The stress load equivalent of 12 principles of simulation and interpolation method to simulate the surface of the equivalent load of excavation, access to the structure of the external force vector. The flooding process simulation for the slope, taking into account the characteristics of the slope of flooding, only 2.5m below the surface of the slope of the range, and that changes in water content with depth parabola. Changes in water content caused by the volume change of soil, then using (1) is calculated. = Day basis I + Llg: a a21gf! 1 + () lg a {-J formula: the amount of that expansion. \Subgrade excavation process to achieve load increment by 5. Each incremental step in the calculation of the first generation of new structures, calculated using the level of soil stress level projections of the excavated surface of the nodal forces to form the level external load vector, and modified stiffness matrix; by finite element method to solve equations to get the class load increment slope soil after the body of stress and displacement field and the slope of the body distribution of the plastic zone; so repeatedly, until the load increment is completed. Finally, the simulation of soil water content changes in the slope, calculate the slope of the displacement of the body after immersion in water and draw disability plastic zone distribution. computer program using FORTRAN language and run under the FORTRANPOWERsTATION40. Excavation Slope LO 2 Analysis of the Role The role of 2l on the displacement finite element results show that, due to unloading, side of Highway and Transport Highways & AutomotiveApicatiom2001 3 slope in June especially in the vicinity of large unloading slope load rebound displacement, Figure 1 is the slope after excavation of the displacement field. is not difficult to find in the slope height of about 3 / 5 the maximum soil displacement development, resulting in the phenomenon is mainly the slope toe Department of restraints, making the soil in the process of moving down the disruption of the formation of the displacement in the area concentrated area. __ a _ ~ j excavation of fields a reminder after the forced displacement of soil slope of 22 pairs of stress expanding overconsolidated soil is a soil: excavation of the former, the larger the soil under initial stress, once the slope excavation,[link widoczny dla zalogowanych], horizontal and vertical soil constraints to be lifted, the stress caused by the release of the soil. In some of the parts. Because the trend of its larger overhead, the soil thoroughly to relieve stress, so too there will be a relatively displacement,[link widoczny dla zalogowanych], the corresponding stress chant a greater whole. by the finite element analysis, can be found, with the excavation of the slope soil in the plastic zone slope gradual body. Figure 2 shaded slope after excavation of the body the distribution of plastic zone, from which can be found, the excavation, the slope Surface and toe plastic zone, there was greater, indicating that the soil where the most thorough stress relief, strain the most. to form the weakness of the slope area. Field 2 _ SUI illegal distribution of the plastic zone after excavation of fields of water right path cutting edge 3 The role of Singapore as rainfall, soil slope expansive soil water production expansion, which led to the slope of the deformation, stress adjustment. Comparative Figures 1 and 3. we can see that flooding slope, the slope foot and the surface the displacement increases, the slope shape of arch trend; the same comparison in Figure 2 and Figure 4 can be found, the slope after immersion in water. adjust the stress of soil, compared with no cases of flooding. slope into a film tensile region appears , plastic zone increases, the slope stability to adverse effects. slope excavation, due to unloading of soil shrinkage cracks and makes a large number of cracks in the slope, one to the rainy season, water enters the cracks, the soil saturated body produce expansion,[link widoczny dla zalogowanych], which led to the displacement field of cutting slope and the change of stress field, resulting in displacement of soil slope and the increase of plastic zone, so that explains why the expansive soil slope in rainy season a large number of shallow slip sliding and collapse phenomena. Houtu flooded fields 3 slope but the slope pull scorpion Figure 4 Distribution of the plastic zone after flooding ring 4 Conclusion above analysis, expansive soil slope, and flooding in the excavation unloading the role, especially in the slope at the foot of the slope and the occurrence of large displacement and the formation of a large number of plastic zone, in engineering practice to address these key positions to take appropriate measures for protection and reinforcement.
More articles related to topics：

uggs nederland Female passenger bus conductor was

puma shoes KFT2,KFT2A系列感应子发电机_107

ugg online bestellen Who will control the bus safe