Concrete Static Cutting Demolition
Static cutting involves the demolition of concrete structures using specialized concrete cutting machinery. Its advantage is that it has minimal impact on the original structure. Considering the construction schedule and economic factors, this project plans to adopt the method of cutting along the excavation hole and chiseling in the middle for concrete removal.
The process offers the following advantages: minimal impact on the existing structure; less dust and reduced environmental impact; fast, with short noise duration; no need for hoisting of cutting blocks, resulting in a shorter construction period.
(1) Floor Cutting and Beveling
The floor cutting and chamfering should first cut the four open sides, then place the cut pieces on a support platform, and crush them with a crusher. Air selection.
The technical challenge lies in ensuring that the saw blade does not cut into the support platform while maintaining the stability and safety of the support platform. The solution is to accurately route the wiring during platform setup, ensuring that the distance between the support platform crossbars on the cutting line and the ground is greater than the radius of the blade.
(2) Cutting and Beveling of Concrete Walls
For concrete wall cutting and edge chiseling, use a wire saw system (wall saw system) to first cut the three sides of the hole, then cut the fourth side only to sever the steel bars. Finally, use a pickaxe to break it open.
4. Key Points of Machining Construction Technique
Pre-processing of front corner before cutting to avoid over-cutting. Before cutting, calculate the over-cut value a based on the diameter of the cutting saw blade and the thickness of the cutting block: a = [√(R2 - r2)] - [√(R2 - (r + b)2)]1/2.
Calculating the cut-over at the corner
Concrete static cutting demolition
Wall Cutting
Since static cutting is a wet process, it generates saw slurry, which can negatively impact the surrounding environment. The solution is:
1) Use oil cloth or color to cover the bottom of the切口 to collect sawdust with strips.
2) Use fine sand around the cutting area for maintenance to prevent the saw slurry from freely flowing.
Can reinforced concrete columns be cut?
Reinforced concrete columns can be cut. Construction techniques using hydraulic wall saws, electric circular saws, water drills, or road saws to cut concrete components, walls, road surfaces, etc. Features include no construction dust and more.
1. Reinforced concrete cutting and demolition technology is a new emerging static demolition technique, primarily featuring the circular saw cutting method and the diamond wire saw cutting method. The circular saw cutting method utilizes diamond particle cutting disks, resulting in neat and straight construction cuts that require no post-processing and are not restricted by factors such as construction site, environmental protection, construction schedule, and safety concerns.
The wire cutting equipment consists of a high-power hydraulic press, a transmission positioning wheel, and a steel wire with diamond-tipped saw teeth. The hydraulic motor drives the steel wire to rotate rapidly around the object being cut, powered by a transmission belt wheel.
Two, Reinforced concrete static cutting involves combining the static cutting method of reinforced concrete with hoisting equipment to complete the demolition task; under the action of high-speed movement of diamond tools, reinforced concrete is ground at specified positions. The reinforced concrete is split into two halves,
3. Concrete static demolition truly achieves damage-free cutting and separation of structures, with fast construction speed, high efficiency, and precision. It features low noise, no vibration, no dust pollution, straight and smooth切口, and no need for post-processing. Compared to the two methods, diamond wire cutting offers faster cutting speed, greater flexibility, and lower construction noise.
