Study On Permeability Performance Of Glass-sand Soil

At present,the use of glass and products in addition to a small number of recycling,a large number of garbage sites in the suburbs of the city or abandoned landfill,has become one of the most serious sources of pollution in the city.Waste glass takes up a lot of land,pollute the environment,form "flash color pollution".It is imperative to recycle the waste glass.As a new type of building materials,waste glass can be used in the construction of buildings,which can not only increase the recycling rate of waste glass,but also ease the shortage of natural resources,reduce the cost of construction projects,and improve the economic performance of the project.Sandy soil refers to the particle size in 0.05mm?2mm of particles larger than 50%of coarse grained soil,the main component of sand is by different particle size of sand and small amounts of silt and clay.The soil particle size is smaller,and there is no cohesive force,and the pore size of the particles is large,so it has good permeability.Due to the good permeability of sand,it is widely used in the field of construction and water conservancy projects,such as the sand well,which is used in foundation treatment,and the permeability of sand is good in soft soil foundation,and it accelerates the consolidation of soil.In this paper,a new type of composite sand,glass sand,is made by using graded waste glass and sand mixed with sand,which can not only improve the performance of sand,but also utilize the waste glass effectively,and improve the utilization efficiency of waste glass.Through laboratory experiments and theoretical analysis,the permeability of glass sand was studied.The influence of different factors on the permeability coefficient of glass sand was studied by experimental analysis.Through the foundation consolidation theory,the sand sand is used as the sand material to fill in the sand hole,and analyze the effect of the soil.Waste glass sand permeability coefficient,study the change rule.Through the foundation consolidation theory,the waste glass sand is used as the sand filled in the sand drain by the consolidation method.,the main research content of this paper is as follows:(1)Mixing with waste glass in the sand and measuring the properties of glass-sand.Through screening test,soil particle proportion test,maximum density and minimum density test.Measure the nature properties index of glass-sand.(2)Study the permeability of glass-sand after incorporation of waste glass particles into sand.Select different influence factors,measure water amount that water flow through the glass sand samples by the constant head permeability test.The permeability coefficient of glass sand was calculated by using Darcy's law.Contrast the relationship of permeability coefficient between the glass-sand and the sand.(3)Calculate according to the degree of consolidation of the foundation,sand hole well resistance effect,analyze the influence of the permeability coefficient of glass-sand in the well resistance,thus the impact on the degree of consolidation of foundation soil.