Variable-pressure plane synchronous grouting process

A synchronous grouting and variable pressure technology, applied in roads, roads, buildings, etc., can solve problems such as insufficient subgrade bearing capacity, lack of monitoring and management of grouting technology, and unsatisfactory road surface effects, so as to achieve reasonable force and solve problems. The Effects of Vehicle Vibration Problems

Inactive Publication Date: 2021-04-23
JIANGSU AOXIN SCI & TECH
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AI Technical Summary

Problems solved by technology

[0003] Grouting is a quick and effective way to solve the insufficient bearing capacity of the roadbed. The cement piles formed by reinforcement form a composite bed with the original roadbed. The existing grouting technology lacks effective monitoring and management, resulting in unsatisfactory road surface effects after grouting , needs to be further improved

Method used

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Examples

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Effect test

Embodiment Construction

[0012] The variable pressure plane synchronous grouting process is carried out according to the following steps: using variable pressure plane multi-point synchronous grouting, the single point grouting pressure is linearly related to the penetrating strength of the point, and the vertical compressive stiffness of the diseased area and the normal road section are achieved. Even transition.

[0013] Further, pressure sensors are arranged on the grouting section for detecting the pressure at each point of the grouting section.

[0014] Further, each grouting point in the grouting section is provided with an isolation sleeve outside the grouting device, and the isolation sleeve is in contact with the grouting ground during grouting, and isolates each grouting point in the grouting section from each other.

[0015] Further, the vertical direction of the spacer sleeve adopts a structure that stretches up and down.

[0016] Further, the isolation sleeve is formed by assembling and ...

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Abstract

The invention relates to a variable-pressure plane synchronous grouting process. Variable-pressure plane multipoint synchronous grouting is adopted, the single-point grouting pressure is linearly related to the penetration strength of a point, and uniform transition of vertical compressive rigidity of a disease area and a normal road section is achieved. By controlling grouting pressure and materials and combining a disease distribution form, the working performance of a roadbed in a disease section is quickly recovered, uniform transition of vertical compressive rigidity of the disease section and a normal road section is achieved, reasonable stress of a road structure system under the action of traffic loads is guaranteed, and the problem of automobile vibration caused by diseases such as pits and ponds or cracks is solved.

Description

technical field [0001] The invention relates to a variable pressure plane synchronous grouting process, which belongs to the technical field of road surface maintenance. Background technique [0002] The roadbed deep environmental protection regenerative multifunctional maintenance vehicle is mainly used to detect and treat roadbed weakening caused by road surface water damage. When it is rainy, the moisture content of the subgrade rises rapidly, the surface soil is close to the flow-plastic state, the properties of the subgrade are significantly weakened, and both the pavement structure layer and the road bed layer are obviously damaged. [0003] Grouting is a quick and effective way to solve the insufficient bearing capacity of the roadbed. The cement piles formed by reinforcement form a composite bed with the original roadbed. The existing grouting technology lacks effective monitoring and management, resulting in unsatisfactory road surface effects after grouting , need...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/04
CPCE01C3/04
Inventor 吴骏吴哲张垚耿大新袁勇刘正明韩立志陈军罗天洪赵永利
Owner JIANGSU AOXIN SCI & TECH
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