
TBM tunnel cleaning time falls with anti-adhesion, thanks to CEGC's innovative solutions that prevent sticky soils from accumulating. By utilizing conditioning chemicals, CEGC effectively manages thick soils and prevents clogging. Research indicates that altering the charge on clay particles minimizes delays and enhances the performance of your tunnel boring machine.
Key Takeaways
-
Use anti-adhesion solutions to cut cleaning time by 40%. This helps your tunnel boring machine work better.
-
Use soil conditioning to stop clogging. This keeps tunneling steady and lowers maintenance costs.
-
Change your TBM settings after geotechnical investigations. This gives better control and fewer delays.
Why TBM tunnel cleaning time falls with anti-adhesion
Material buildup in tunnel boring machines
Tunnel boring machines often have cleaning delays. This happens because material builds up inside the machine. Sticky soils with lots of plastic clay stick to metal parts. These soils cause clogging and slow down the work. When clay sticks to the cutterhead or other parts, you must stop the machine. You need to remove the buildup before you can keep working. This makes the machine stop more often and costs more for maintenance.
Some materials with lots of plastic clay stick to metal parts and cause clogging. Clay formations can clog in four ways: Clay particles stick to the surface, Clay particles bridge on the transfer route, Clay particles stick together, Clay particles do not dissolve well in water. The most important way is when clay sticks to the surface of machine parts.
Many tunnel projects have these problems. The main reasons for cleaning delays are:
-
Clay sticks to metal and causes clogging.
-
Charts were made to show how clogging happens.
-
Tests show how adhesion and clogging are connected.
If you work in places with sticky soils, you see that tbm tunnel cleaning time falls with anti-adhesion solutions. These solutions stop buildup and help avoid problems.
Impact of anti-adhesion and anti-clogging solution
You can clean faster with anti-adhesion and anti-clogging solutions. These solutions change how clay sticks to metal in tunnel boring machines. When you use anti-adhesion agents, clay does not stick as much. You spend less time cleaning and more time digging the tunnel.
CEGC makes tunnel boring machines with good performance. You get balanced power and thrust. This helps you save energy and reduces cutter wear. CEGC’s machines can use up to 12.46% less energy. You can also customize your machine for your project. This lets you pick features that help you do better and meet industry standards.
These solutions fix many problems:
-
You do not need to stop as much for cleaning.
-
Cutterhead wear is lower, so you replace parts less often.
-
Your project stays on schedule and costs less.
You will see that tbm tunnel cleaning time falls with anti-adhesion technology. This makes your work smoother and gives better results. With CEGC’s solutions, tbm tunnel cleaning time falls with anti-adhesion, even in tough ground. You can trust your tunnel boring machines to work well and keep your project moving.
You will notice that tbm tunnel cleaning time falls with anti-adhesion in big projects and small microtunnelling jobs. This helps you give better results to clients and lowers the chance of delays. If you choose CEGC, you know tbm tunnel cleaning time falls with anti-adhesion. This gives you an advantage in the industry.
Anti-adhesion and anti-clogging solution for tunnel boring machines

How anti-adhesion agents work
Anti-adhesion agents help your tunnel boring machine work better. These agents change how sticky soils act inside the machine. When you add foaming agents, the muck flows more easily. The foam makes the muck softer and easier to move. This helps the muck travel through the machine and out of the tunnel.
The foam also lowers how much things stick. Clay and sticky stuff do not stick to the cutterhead or metal parts. You see less buildup and do not need to stop as much for cleaning. The anti-adhesion agents make a foam barrier. This barrier keeps the muck moving and stops clogging.
Here is how these agents help:
-
Foaming agents help muck flow and stop it from sticking to the cutterhead.
-
The foam makes the muck softer and easier to move.
-
The foam barrier lowers stickiness and keeps things from sticking.
-
You get smoother muck removal and less time stopped.
Soil conditioning also helps. It makes the soil easier to move and handle. When you use soil conditioning, the tunnel face stays stable and safe. CEGC’s tunnel boring machines use special soil conditioning and muck transport systems. These features help you avoid problems and keep your project going.
Efficiency gains and reduced downtime
You want your tunnel boring machine to work fast and stop less. Anti-adhesion agents and anti-clogging solution help you do this. When you use these solutions, you see big improvements and less stopping.
Tests show anti-adhesion agents really help. Look at these results:
|
Metric |
Before (Old Conditioning) |
After (New Conditioning) |
Improvement |
|---|---|---|---|
|
Cutterhead Torque (kN·m) |
N/A |
1750 |
Big drop |
|
Thrust (kN) |
N/A |
9000 |
Big drop |
|
Tunneling Efficiency (rings/day) |
3 |
7 |
133% increase |
|
Clogging Occurrence |
Yes |
No |
Gone |
Tunneling speed went up by 133%. Clogging stopped. The new soil conditioning worked better than before. The foam agent worked well even with less used, so you save money.
Anti-clogging steps give you more good results. Super water-absorbent polymers (SWAs) help keep the tunnel face steady. SWAs stop clogging in the cutterhead and muck system. You spend less time fixing things and more time working. Projects like MetroSur used these ideas and set new speed records.
Here are some main benefits:
-
Better cutterhead work and faster digging.
-
Lower costs and fewer tool changes.
-
Less stopping and smoother digging.
-
Easier work with sticky soils and better soil conditioning.
CEGC’s tunnel boring machines use a plan for tool changes and checks. You can plan ahead and avoid surprises. Using soil conditioning, anti-clogging solution, and anti-clogging steps gives you a big advantage. You finish tunnels faster, save money, and do a better job for your clients.
Real-world benefits for CEGC TBM projects

Time savings and operational improvements
You want your tunneling project to finish on time. CEGC TBM machines help you do that. When you use anti-adhesion and anti-clogging solutions, you spend less time cleaning. You see faster tunneling and fewer stops. Many projects show that cleaning time drops by up to 40%. You can keep your tunneling work moving without long breaks.
You also get better control over the ground. CEGC lets you change machine settings for each tunneling job. You can adjust face pressure and advance rate. This means you do not need to stop for cutterhead checks as often. You lower the risk of ground movement. You protect buildings and roads above your tunnel. You get safer tunneling and better results.
Tip: Always start with a good geotechnical investigation. This helps you pick the right settings for your tunneling machine and avoid surprises.
Additional advantages for contractors and utilities
You want to save money and reduce risk. CEGC TBM machines help you do both. You spend less on repairs because the cutterhead lasts longer. You do not need to buy as many spare parts. Your tunneling team works faster and safer.
A strong geotechnical investigation helps you plan your tunneling job. You know what soils you will face. You can choose the best anti-adhesion agents and machine settings. This makes your tunneling project smoother.
You also get better project timelines. You can finish tunneling jobs faster. You lower the chance of delays. You keep your clients happy. CEGC gives you tools to track your tunneling progress. You can see how much time you save after each cleaning cycle.
Note: Good tunneling starts with smart planning and the right machine. CEGC helps you every step of the way, from geotechnical investigation to final tunnel delivery.
You can clean TBM tunnels faster with CEGC’s anti-adhesion and anti-clogging solutions.
-
These solutions help stop clogging and make the cutter head last longer.
-
You get better tunneling and do not have to stop as much.
Our main job is to protect the environment. We do this by using soil conditioning in tunneling. This helps lower the effect of chemicals and agents on the ground around the tunnel. It also helps reduce the impact on landfill from the dirt we remove.
FAQ
What is the best tunnelling method for sticky soils?
You should use soil conditioning with anti-adhesion agents. This method stops clogging and keeps your tunnel boring machine running well.
How does a pipejacking tbm reduce cleaning time?
Pipejacking tbm cleans faster because it uses anti-adhesion solutions. These solutions keep clay from sticking and help you finish your project sooner.
Can anti-adhesion agents lower maintenance costs?
Yes! You pay less for repairs. Anti-adhesion agents protect the cutterhead and cut down on how often you need maintenance.