Research On Deformation Characteristics And Settlement Calculation Of Reinforced Loess Foundation Under Wet Load Conditions

After the wet trapped loess is soaked in water,the intensity is greatly reduced.When the upper part of its load exceeds the strength of the soil,the soil structure is quickly destroyed and a significant uneven deformation is produced,which affects the normal use of the upper building.At present,for the treatment of wet trap,common methods include ramming,replacement,and squeezing piles,but these traditional methods have disadvantages such as large noise,high cost,and long working period,especially for underground comprehensive pipe galleries.2.Municipal roads,such as a densely populated area,high construction costs,and low requirements for foundation strength,and high demand for uneven departure,their disadvantages are particularly obvious.Therefore,this article proposes a new method of treatment of wet trapped loess-based basis-adding tendon and yellow land base,which is to be removed from partial wet trap,and then paved the synthetic materials(such as geographical grilles,geographical rooms such as geographical grilles,geographical grids,and geographical grids according to a certain vertical distance.,Geomantic cloth,etc.),and after laying each layer of tendon,the dug out of the soil is compacted and returned to the filled with a yellow landlord.This article is based on the research object of adding muscles and yellow land,and analyzes its wet load deformation characteristics and reinforcement mechanism through model tests,numerical simulation,and theoretical calculation methods.Based on this,it proposes the calculation method of wet sinking and tension.The main tasks and research results carried out in this article are as follows:(1)Carry out the test of the yellow land base model under the wet load conditions,and study the reinforcement effect of the geog grille on the wet yellow land base,as well as the ribs rigidity,layer,spacing,and filling of soil.The impact of the internal soil pressure distribution and destruction mode,on this basis,explore the deformation characteristics of the wet load of the band yellow land and the mechanism of soil.Results show that adding geog grids to the wet trap can significantly reduce the wet sinking and settlement at the bottom of the foundation,and suppress the bulging and deformation of the foundation surface;as the ribs rigid and the filling of the filling pressure increases The surface of the foundation is uneven and reduced,and the number of tendon layers and spacing has little effect on the foundation of the foundation;The damage mode has changed from the original punch to the overall shear damage.(2)Based on the test of the yellow land base model,the reinforcement foundation finite element numerical model is established,and the correctness of the numerical model is used to verify the value model.The verified numerical model is used to further study the amount of reinforcement parameters under the wet load conditions.The influence of reveals the evolution of the internal displacement of the tendon and yellow land base,the force field and the pulling of the muscles.The results show that during the dampness of the foundation,the tendon gradually exerts the resistance of the resistance,so that the distribution of stress fields and displacement fields caused by loads continues to expand,and the internal stress distribution of the foundation is more uniform,thereby reducing the inferior uneven settlement of the foundation;After dampness,bending and deformation gradually occurred under the influence of basic wetness and sedimentation,and the tensile stress distribution range of the tendon is increasing.(3)On the basis of the influencing factors of adding tendons and yellow land base deformation obtained by model tests and numerical simulation,32 groups of band-yellow land base value models are established to study the ribs,layers,and spacing parameters The impact of the relationship between the sinking and reduced measurement,on this basis,determine the damp sinking and reduced reduction coefficient of the yellow land base of the tendon and yellow land through data reverse.Calculate the formula for the downgrade of the yellow land base,so as to propose the amount of dampness and sinking and sinking of the band of yellow land,and the calculation formula of the tension of the muscles;the model test results and the prototype numerical simulation results are verified to the formula mentioned in this article,which proves the rationality of the formula.