Improvement device and improvement method for collapsible loess roadbed

Abstract

The invention discloses an improvement device and an improvement method for a collapsible loess roadbed, and relates to the technical field of building construction equipment. The device comprises a machine table, handles are arranged on the two side faces of the machine table, and a first liquid storage tank and a second liquid storage tank are fixedly connected to the bottom face of the machinetable; one surface of each of the first liquid storage tank and the second liquid storage tank is fixedly connected with a micro high-pressure pump; one ends of water inlets of the two miniature high-pressure pumps are respectively communicated with the first liquid storage tank and the second liquid storage tank; and the top face of the machine table is fixedly connected with a mounting frame. The collapsible loess subgrade is reinforced by adopting a chemical reinforcement principle, a chemical reagent is injected into foundation soil by the two liquid outlets in a high-pressure and high-speed rotating state during working, a gelling substance is generated or the surfaces of soil particles are activated through a chemical reaction, and the soil particles are combined, so that the soil body strength of the collapsible loess subgrade is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of building construction equipment, and in particular relates to an improvement device and an improvement method for a collapsible loess subgrade. Background technique [0002] The collapsible characteristics of the collapsible loess foundation will bring different degrees of damage to the structure, causing the structure to substantially settle, crack, and tilt, and even seriously affect its safety and use; therefore, the construction of bridges and culverts in the loess area In this case, it is necessary to have a reliable judgment method and a comprehensive understanding of the collapsible loess foundation, and to take correct engineering measures to prevent or eliminate its collapsibility. [0003] One of the effective methods to control collapsible loess foundation is chemical reinforcement method, using some chemical solutions to inject into the foundation soil, through chemical reaction to generate ge...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a collapsible loess subgrade improvement device and improvement method, through the design of the outer shaft, inner shaft, soil rod and miniature high-pressure pump, solve the existing collapsible loess subgrade improvement device and improvement method. Problems with ineffective improvement methods

Images