Tunnel expansion joint grouting plugging Plugging the leakage of the expansion joint of the underground corridor of the belt
In view of the leakage of the expansion joint of the tunnel and the leakage of the expansion joint of the underground corridor of the belt, the method of grouting plugging can be used to repair the leakage. The specific steps are as follows:
1.Determine the leakage location: First of all, you need to find the leakage location, which can be detected with professional instruments to determine the specific location and scope of the leakage.
2.Drilling: Drill holes around the leaking parts, the hole diameter and depth need to be determined according to the actual situation of the expansion joint, and generally need to drill a hole on each side of the crack to facilitate grouting.
3.Install the grouting nozzle: Install the grouting nozzle into the borehole, taking care to ensure that the joint of the grouting nozzle is tightly connected to the borehole, and that the position of the grouting nozzle is accurate.
4.Sealing: For parts with large cracks, special seam sealing materials can be used to seal seams to prevent further leakage.
5.Preparation of grouting solution: According to the actual situation of the expansion joint, select the appropriate grouting solution and prepare it according to the proportion.
6.Grouting involves injecting the grouting fluid into the borehole using a high-pressure grouting pump until the grout flows out of the other hole. If it is found that the grouting fluid is not leaking out, manual grouting can be done using a hand pump.
7.Maintenance and maintenance: After the grouting is completed, the grouting nozzle needs to be maintained and maintained to ensure its normal operation.
In addition, the method of plugging the leakage of the expansion joint of the belt underground corridor can refer to the above steps, but it should be noted that the water stains and debris at the leakage part need to be cleaned up before plugging, and then the special sealing material is used to seal the joint, and then the expansion cement mortar is used to plug. If the leakage is severe, it is advisable to seek help.
The above advice is for reference only, if you still have questions, it is recommended to seek help from others.
Tunnel expansion joint grouting plugging Plugging the leakage of the expansion joint of the underground corridor of the belt