Study On Preparation And Properties Of High Strength Permeable Concrete

Soft soil foundation has low strength,it has high compression,high moisture content,low shear strength and other undesirable properties,it is prone to large settlements and adversely affect highway construction.With the development of economic and social construction,higher requirements for highway construction,construction technology and quality have been continuously raised.According to the characteristics of soft soil foundation,how to solve and improve the soft soil foundation to make the foundation meet the bearing capacity and stability It is required to prevent uneven settlement or large settlement after road construction.Aiming at the existing soft soil problems,this paper researches the special subgrade soft soil subgrade filling and ground treatment design,so as to provide design and treatment guidance for special soft soil subgrade treatment construction.This article summarizes and summarizes the soft soil roadbed research data through feedback issues during engineering construction,quality inspection,operation and maintenance,as well as references and related specifications,and analyzes soft soil roadbed filling design and ground treatment design technology.In comparison,a treatment plan for ground filling and treatment in soft soil areas is proposed.For soft soil roadbed filling design,specific requirements are put forward for surface treatment,strength testing,filling construction,and stability observation during roadbed filling;for soft soil groundwater treatment design,which mainly summarizes The countermeasures include anti-pressure protection road,replacement and deep treatment.The soft soil roadbed treatment along special places such as river ponds,bridgeheads and transition sections has been designed and studied.In addition,soft soil roadbed roads The widening process is complicated,and it mainly faces the problem of cracks caused by differential subsidence road surface.This paper takes the research of soft soil roadbed treatment as the pavement,and mainly adopts deep cement mixing piles,prestressed pipe pile treatment and light filler filling treatment.The width of soft soil roadbed is treated,and the differential settlement of roadbed width is analyzed and studied,and related control standards and indicators are proposed.