In view of the recent netizens consulting Qiannan Prefecture Highway backfill sinking grouting, the following is a summary of the content related to this, if you want to know more about the relevant content, you can pay attention to it.
Qiannan Highway backfill subsidence grouting is a commonly used highway subgrade treatment method, which is used to solve the problem of subgrade land subsidence and improve the stability and bearing capacity of subgrade. The following will be a detailed introduction to the role, effect and construction process of Qiannan Highway backfill sinking grouting.
Function: 1. Solve the problem of land subsidence: In the process of highway use, part of the subgrade soil may sink, resulting in uneven road surface and even cracks. Qiannan Highway Backfill Soil Sinking Grouting can solve the problem of soil subsidence by injecting grouting materials into the subsidence to fill the soil voids and improve the compactness of the soil.
2.Improve subgrade stability and bearing capacity: Soil subsidence will lead to a decrease in the bearing capacity of subgrade and reduce the stability of the pavement. Qiannan Highway backfill subsidence grouting can increase the compactness and strength of the soil, improve the stability and bearing capacity of the roadbed, so as to ensure the safety and long-lasting use of the highway.
Effect: 1. Solve the problem of land subsidence: Qiannan Highway backfill subsidence grouting can effectively solve the problem of land subsidence, improve the smoothness of the pavement, reduce the number of pavement maintenance, and prolong the service life of the highway.
2.Improve the stability and bearing capacity of the roadbed: through the injection of grouting materials, the soil void can be filled, the compactness and strength of the soil can be increased, the bearing capacity of the roadbed can be improved, and the anti-settlement ability and seismic stability of the highway can be enhanced.
Construction process:
1. Soil preparation: First of all, it is necessary to investigate and analyze the soil in the subsidence area to determine the nature of the soil and the cause of subsidence. The soil is then treated to remove parts that are not conducive to grouting, such as weak layers and loose soil.
2.Preparation of grouting materials: choose suitable grouting materials, including cement slurry, polyurethane, epoxy resin, etc. The grouting material should have good fluidity and strength, and can be blended according to actual needs.
3.Construction operation: Drilling in the sinking area, hole diameter and hole spacing are determined according to the design requirements. The grouting material is then injected into the soil through a grouting pipe until the predetermined slurry capacity is reached. After the grouting is finished, the orifice is blocked in time to prevent the loss of slurry.
4.Construction quality control: monitor the parameters such as grouting amount, grouting pressure and grouting speed in the construction process to ensure that the construction quality meets the design requirements. At the same time, the construction area is inspected and tested to ensure that the grouting effect meets expectations.
It should be noted that the construction of Qiannan Highway backfill subsidence grouting requires a professional construction team and appropriate equipment, and a detailed construction plan should be formulated before construction, and the relevant construction specifications and standards should be followed.