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 Business content
  We will introduce the business contents of Matsudo Construction Co., Ltd.
  Civil engineering work
cleaning work
 
  
	   
		   - cleaning work 
- Use a pressure washer to clean the inside of the sewer pipe with water pressure.
		   - research work 
- A robot camera shoots and investigates the inside of sewer pipes where people cannot enter.
 
  Civil engineering work
 
  
	   
		   - Open-cut work 
- It is the most basic construction to dig and replace sewer pipes buried in the ground.
		   - Upper manhole repair work 
- (LB method)The shearing force of the hydraulic machine peels off the manhole and replaces it.
 
  
  
  Interior work
 
  
	   
		   - Internal coating work 
- (SPR method)Instead of digging roads, new pipes are wound around existing sewage pipes to extend their life.
		   - Seismic retrofitting work 
- (Existing manhole seismic retrofitting method)By cutting and reinforcing the joints between manholes and sewage pipes, damage during earthquakes is prevented.
		   - Seismic retrofitting work 
- (Floatless construction method)A dissipation valve is installed inside the manhole to prevent the manhole from rising due to liquefaction during an earthquake.
 
 
  Concrete enforcement
 
  
	   
		   - Anti-corrosion coating for concrete structures 
- The progress of corrosion is prevented by applying anti-corrosion coating materials inside manholes that have deteriorated due to corrosion.