Fine Numerical Simulation Analysis On Liquid Rheological Properties Of Soft Soil

With the development of modern social economy,The engineering characteristics of soft soil are being paid more and more attention because of the large-scale construction of the city.The rheological properties of soft soil cause many problems to engineering,so many scholars have invested in the rheological research of soft soil.In this paper,the material which causes the rheology of soil is called the rheological phase material.Many scholars have studied the rheological phase material through various experiments,and discussed the influence of the rheological phase material on the rheological properties of the soil.Through numerical simulation and comparison of relevant indoor test data,it is demonstrated that when the distribution of the rheological phase material has a certain uniformity,the rheological properties of the soil are only related to the properties and proportions of the rheological phase matter,but have nothing to do with the shape and distribution of the rheological phase material.The research work and achievements achieved in this paper are as follows.(1)Studying the influence of shape and distribution of rheological phase on rheological properties of soil.The distribution and shape of the rheological phase material in the soil are simulated and compared with the experimental results.It is considered that the shape and distribution of the rheological phase material do not affect the rheological properties of the soil under a certain uniformity.When the rheological phase material reaches a certain degree of uniformity under the same proportion and parameter,the time-strain curve and viscosity coefficient of the soil tend to be consistent.(2)Studying the influence of rheological phase material content on rheological properties.In the case of one-dimensional compression,only by changing the proportion of the total volume of the rheological phase material,we have found that the content of the rheological phase material has a great influence on the rheological properties of the soil through numerical calculation.Under the same condition,the larger the proportion of the rheological phase material,the smaller the viscosity coefficient of the soil,and from initial creep to accelerated creep,rheology is more obvious in isokinetic creep stage.(3)Studying the influence of rheological properties of materials on rheological properties.By changing the modulus of elasticity and the creep parameters of the material parameters of the rheological phase,the simulation results from one dimensional compression show that when the rheological phase material reaches a certain uniformity,only the elastic modulus will affect the accelerated creep stage under different stress levels,but it has little effect on the ultimate viscosity coefficient.Only changing the creep parameters will affect the accelerated creep stage under the action of high stress level,and at the same time,change the viscosity coefficient of the soil.