System and method of flocculation combined with vacuum preloading for treatment of blown fill foundation

Abstract

The invention discloses a flocculation combined vacuum prepressing system for treating blow-filled soil foundation, which comprises a treatment area, a vertical drainage plate, a transverse drainage plate and a vacuum pump, wherein the vertical drainage plate and the transverse drainage plate are respectively connected with the vacuum pump through a drainage pipe, the processing area covered withgeomembrane and geotextile. A stirring device is arranged on one side of the processing area, comprising a tank body, wherein the upper end is provided with an inlet, the lower end is provided with aconveying pipe, a conveying pump is arranged on the conveying pipe, the first motor is arranged at the upper end of one side of the tank body, the second motor is arranged at the lower end of the other side of the tank body, a first rotating shaft connected with a first motor and a second rotating shaft connected with a second motor are arranged in the tank body, an electric push rod is arranged at the lower part of the first rotating shaft, the second rotating shaft and the electric push rod are both provided with stirring rods. The system enables a mixture to be stirred more uniformly. The invention also discloses a method for treating the filling soil foundation by combining flocculation and vacuum prepressing.

Description

technical field [0001] The invention relates to a system for flocculation combined with vacuum preloading to treat dredging and filling soil foundation. Background technique [0002] With the development of China's market economy, the demand for land resources is increasing day by day, and many reclamation projects are also proceeding rapidly. In the past few decades, seabed silt has been widely used as filling material in reclamation projects. However, dredger fill silt has the characteristics of high moisture content, high compressibility and low bearing capacity, and improving the properties of dredge fill silt is an urgent problem to be solved in reclamation projects. Vacuum preloading is currently the most common method to improve the bearing capacity of dredged silt soft soil foundation. In recent years, with the development of new materials and technology, this method has been well developed. The use of plastic drainage boards allows the vacuum pressure to be well d...

AI Technical Summary

Problems solved by technology

The way of stacking or landfilling not only wastes land, but also reduces the quality of land and makes it impossible to cultivate

Although as early as 2004 the construction industry had compulsorily implemented building energy conservation, promulgated the "Green Building Evaluation Standard" in 2006, and issued the "Green Building Action Plan" in 2013, however, my country ranks among the top in the world in the generation of construction waste. The recycling rate of waste concrete is only 5%, which is contrary to my country's strategic goal of sustainable development

Construction waste is mostly used in the manufacture of recycled aggregate concrete after classified treatment, and is rarely used in other aspects, which is insufficient for the utilization of construction waste resources

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