Research On Computer Simulation Methods Of Longitudonal Non-Uniform Deformation About Linear Engineering Construction

Because the linear projects across many regions, and through many more geomorphic units, there sre mountains, hills, plains, deserts, the gobi, swamp, rivers, dense waterway net region and so on, so the geological hazards along, types and characteristics of water-soil erosion varies.Linear engineering often can cause non-uniform deformation problems, Among of these uneven settlement is the main factors of deformation and damage occurred about the surrounding buildings or contents. At present, there has not a better theory or computer simulation method to calculate the longitudinal uneven settlement, which is used to prior estimates and predicted.Based on the engineering background, the deformation and cracking of surrounding buildings caused by the precipitation in the first phase of sewage treatment sewage pipe network construction (north of Chengzhou rode and eastern of Baizhai Rode, Shanglin, Guangxi). Through the analysis of main factors that affect the linear engineering, based on the two most important factors to establish the double factors combination model. On the basis of the analysis of the influence about three parameters (permeability coefficient, void ratio, modulus), establish three principles about the selection of sensitive parameter, and based on the three principles, selected the modulus as the most sensitive parameters.Through the design of indoor seepage-piping-consolidation test, reseach the attenuation law of modulus. And based on the modulus reduction in double factors combination model, achieve considering the seepage and piping at the same time, to calculation the deformation on the linear elastic model in ABAQUS fluid-structure coupling calculation of unsaturated soil. Therefore, to establish a convenient, quick and practical method of computer simulation.This thesis is mainly to studies the linear engineering construction under the condition of different water level and geological, the mechanism of displacement and deformation about geological, which caused by the water seepage. And compared with the development law of crack about more typical houses along the actual engineering, this is done for verify the reliability of computer simulation, to predict and avoid potential risk, for the future similar engineering design and construction provide useful countermeasures and suggestions.