What should be done when encountering leakage problems during tunnel invert construction? In tunnel invert construction, leakage is a common problem that needs to be solved in a timely manner. Here are some recommended steps to deal with it:

　　1. Locate the leakage point immediately:

　　- Use penetration detection technology, such as infrared thermal imaging, acoustic detection, etc., to quickly and accurately determine the location of the leakage point.

　　- For large-scale tunnel projects, it may be necessary to set up a special leakage monitoring system to monitor the leakage in real time.

　　2. Preliminary treatment:

　　- If conditions permit, you can first use temporary plugging materials (such as fast-curing concrete, waterproof tape, etc.) to initially plug the leakage point to slow down the leakage rate.

　　- During this period, a professional team should be organized as soon as possible to conduct detailed on-site investigations and plan discussions.

　　3. Detailed analysis of the causes:

　　- Conduct a comprehensive analysis of the causes of leakage, including but not limited to construction quality problems, waterproof material defects, changes in geological conditions, etc.

　　- Understand the structural details near the leakage point, such as whether there are cracks, voids, etc., which may be potential causes of leakage.

　　4. Develop a detailed repair plan:

　　- According to the severity of the leakage, the results of the cause analysis and the actual situation on site, develop a targeted and detailed repair plan.

　　- The plan should include the required materials, tools, human resources and the expected repair time.

　　5. Perform repair work:

　　- According to the repair plan, organize a professional team to carry out on-site repair work. This may include cleaning the leakage area, replacing damaged waterproof materials, repairing cracks, reinforcing the structure, etc.

　　- During the repair process, the construction specifications should be strictly followed to ensure the quality of construction.

　　6. Quality inspection and subsequent monitoring:

　　- After the repair is completed, strict quality inspection is carried out to ensure that the leakage problem is completely solved.

　　- Even if the problem is solved, leakage monitoring should continue for a period of time to ensure that the repair effect is long-lasting and stable.

　　7. Recording and feedback:

　　- Record the entire process in detail, including the materials used, methods, difficulties encountered and the final repair effect.

　　- Feedback the handling experience to relevant departments and teams as a reference for handling similar problems in the future.

　　8. Preventive measures:

　　- Analyze the root cause of the leakage problem, improve the construction process and quality control measures to prevent similar problems from happening again.

　　- Strengthen the training of construction personnel to improve their professional skills and quality awareness.