阅读说明：本技术 变压力平面同步注浆工艺 (Variable pressure plane synchronous grouting process ) 是由 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 于 2019-10-23 设计创作，主要内容包括：本发明涉及一种变压力平面同步注浆工艺。采用变压力平面多点同步注浆,单点注浆压力大小与该点触探强度线性相关,实现病害区与正常路段竖向抗压刚度的均匀过渡。本发明通过注浆压力和材料控制,结合病害展布形态,快速恢复病害区段路基工作性能,实现病害区与正常路段竖向抗压刚度的均匀过渡,保证交通荷载作用下道路结构体系受力的合理,解决坑塘或龟裂等病害引起的汽车振动问题。(The invention relates to a variable-pressure plane synchronous grouting process. And the pressure-variable plane multipoint synchronous grouting is adopted, the single-point grouting pressure is linearly related to the contact detection strength of the point, and the uniform transition of the vertical compressive rigidity of the damaged area and the normal road section is realized. According to the invention, the grouting pressure and material control are combined with the disease spreading form, the roadbed working performance of the diseased region is quickly recovered, the uniform transition of vertical compression rigidity of the diseased region and the normal road section is realized, the reasonable stress of a road structure system under the traffic load action is ensured, and the problem of automobile vibration caused by diseases such as pool or crack is solved.)

1. The variable-pressure plane synchronous grouting process is characterized by comprising the following steps of: and the pressure-variable plane multipoint synchronous grouting is adopted, the single-point grouting pressure is linearly related to the contact detection strength of the point, and the uniform transition of the vertical compressive rigidity of the damaged area and the normal road section is realized.

2. The variable-pressure plane synchronous grouting process according to claim 1, wherein pressure sensors are arranged on the grouting sections and used for detecting the pressure of each point of the grouting sections.

3. The variable-pressure plane synchronous grouting process as claimed in claim 1, wherein each grouting point of the grouting section is externally provided with a separation sleeve outside a grouting device, and the separation sleeve is in contact with a grouting ground during grouting to separate the grouting points of the grouting section from each other.

4. The variable-pressure plane synchronous grouting process as claimed in claim 3, wherein the isolation sleeve is in a vertically telescopic structure.

5. The variable pressure plane synchronous grouting process as claimed in claim 4, wherein the isolation sleeve is assembled and spliced by a plurality of vertical plates.

6. The variable-pressure plane synchronous grouting process as claimed in claim 5, wherein a plurality of elastic patches are arranged on the lower surface of the isolation sleeve.

Technical Field

The invention relates to a variable-pressure plane synchronous grouting process, and belongs to the technical field of pavement maintenance.

Background

The roadbed deep layer environment-friendly regenerative multifunctional maintenance vehicle is mainly used for detecting and treating roadbed weakening caused by pavement water damage. During overcast and rainy days, the water content of the roadbed rises rapidly, the surface soil body is close to a flow-plastic state, the roadbed character is obviously weakened, and the pavement structure layer and the road bed layer are obviously damaged.

The grouting is a quick and effective method for solving the problem of insufficient bearing capacity of the roadbed, a composite foundation bed is formed by the reinforced cement piles and the original roadbed, and the existing grouting technology lacks effective monitoring and management, so that the road surface effect after grouting is not ideal, and further improvement is needed.

Disclosure of Invention

Aiming at the defects, the invention aims to provide a variable-pressure plane synchronous grouting process which is reasonable in arrangement and improves the pavement grouting effect.

The technical scheme adopted by the invention is as follows: the variable pressure plane synchronous grouting process comprises the following steps: and the pressure-variable plane multipoint synchronous grouting is adopted, the single-point grouting pressure is linearly related to the contact detection strength of the point, and the uniform transition of the vertical compressive rigidity of the damaged area and the normal road section is realized.

Furthermore, pressure sensors are arranged on the grouting sections and used for detecting the pressure of each point of the grouting sections.

Furthermore, an isolation sleeve is arranged outside a grouting device of each grouting point of the grouting section, and the isolation sleeve is in contact with the grouting ground during grouting to isolate the grouting points of the grouting section from each other.

Furthermore, the vertical direction of the isolation sleeve adopts a structure form of up-down expansion.

Furthermore, the isolation sleeve is formed by assembling and splicing a plurality of vertical plates.

Furthermore, a plurality of elastic patches are arranged on the lower surface of the isolation sleeve.

The invention has the advantages that: according to the invention, the grouting pressure and material control are combined with the disease spreading form, the roadbed working performance of the diseased region is quickly recovered, the uniform transition of vertical compression rigidity of the diseased region and the normal road section is realized, the reasonable stress of a road structure system under the traffic load action is ensured, and the problem of automobile vibration caused by diseases such as pool or crack is solved.

Detailed Description

The variable pressure plane synchronous grouting process comprises the following steps: and the pressure-variable plane multipoint synchronous grouting is adopted, the single-point grouting pressure is linearly related to the contact detection strength of the point, and the uniform transition of the vertical compressive rigidity of the damaged area and the normal road section is realized.

Furthermore, pressure sensors are arranged on the grouting sections and used for detecting the pressure of each point of the grouting sections.

Furthermore, an isolation sleeve is arranged outside a grouting device of each grouting point of the grouting section, and the isolation sleeve is in contact with the grouting ground during grouting to isolate the grouting points of the grouting section from each other.

Furthermore, the vertical direction of the isolation sleeve adopts a structure form of up-down expansion.

Furthermore, the isolation sleeve is formed by assembling and splicing a plurality of vertical plates.

Furthermore, a plurality of elastic patches are arranged on the lower surface of the isolation sleeve.

Grouting is a quick and effective method for solving the problem of insufficient bearing capacity of the roadbed, and a formed cement pile and the original roadbed are reinforced to form the composite foundation bed. The grouting technology and the intelligent detection module are synchronously integrated on the roadbed deep layer environment-friendly regenerative multifunctional maintenance vehicle. According to the section damage degree equipotential line output by the intelligent detection and evaluation module of the roadbed damage area, variable-pressure plane multipoint synchronous grouting is adopted, the size of single-point grouting pressure is linearly related to the point contact detection strength, and the uniform transition of vertical compression rigidity of the damage area and a normal road section is realized.