Concrete cutting refers to the construction technology of cutting concrete components, walls, roads, etc. by using tools such as hydraulic wall saws, electric disc saws, water drills, or road cutters. It has strong cutting ability, no static damage, and high efficiency. Water cooling, no construction dust, and other characteristics:
1. Cutting and dismantling:
Wire saw cutting is a diamond rope driven by a hydraulic motor to grind at high speed around the object to complete the cutting work. Using wire saw equipment to cut and dismantle concrete can make the technical demolition of reinforced concrete easier and safer. More effective. The labor intensity is reduced, the operation is safe and reliable, the power is strong, and the cutting and demolition ability and engineering efficiency are improved. It is an advanced equipment used in demolition engineering construction projects. Construction features: It can cut in any direction, and the cutting is not limited by the cut body's size, shape, and cutting depth. It is widely used in the cutting and demolition of prominent steel members.
2. Static blasting demolition:
Use a jackhammer to chisel the surface of the supporting beam, cut off the stirrups, then drill a hole in the shaft, and set an expansion agent, it will expand after the reaction and force the beam body to crack, and then use a jackhammer to chisel Broken, then cleaned up. The advantage is that there are no limitations, relatively safe, easy to clean up, and medium cost; the disadvantage is that the construction speed is slow and a large number of construction personnel are required for construction.
3. Cutting and dismantling:
Support the supporting beam, cut and divide the beam body by cutting method, and use the crane to hoist it to the edge of the foundation pit for crushing or transport it to the designated place for crushing and recycling of steel bars. The biggest limitation of demolition by cutting is that large cranes can be placed around the foundation pit. The advantage is that the construction speed is fast, the project is used in a rush period, and the cost is relatively low when a large crane can be placed; the disadvantage is that it has high requirements for the site (need to have a place to place the crane), and the transportation is difficult and expensive ( If it cannot be stacked and broken on site).
4. Combination of cutting and static crushing and dismantling:
For foundation pits where large cranes can be placed locally but have local limitations, the simultaneous construction method of mechanical cutting and static crushing can be adopted, which can guarantee the construction period to the greatest extent at the same time The requirements for the number of personnel in the cutting and crushing team are relatively low.
5. Waist beam removal:
It is generally recommended to use the static crushing method to remove the waist beam. Because one side of the waist beam is connected with the continuous wall, the construction cost will be very high if the cutting method is used.
