What are the construction methods and technical points of steel sheet pile cofferdam?
Steel sheet pile cofferdam is the most commonly used type of sheet pile cofferdam. Steel sheet pile is a type of steel with a locking mouth, and its cross-section includes straight plate, groove, and Z-shape, with various sizes and interlocking forms.
Its advantages are: high strength, easy to penetrate into hard soil layers; Construction can be carried out in deep water, and if necessary, diagonal supports can be added to form a cage. Good waterproof performance; It can form various shapes of cofferdams as needed and can be reused multiple times, making it widely used.
So, what are the construction methods and technical points of steel sheet pile cofferdam?
1. The entire process of driving steel sheet piles must be well positioned and guided, and the bi-directional verticality must be strictly controlled to ensure a good fit between the piles, ensuring that the steel sheet pile wall is vertical and closely adheres to the perimeter of the fence. This is the key to waterproofing and seepage prevention;
2. When water is pumped from the foundation pit and leakage occurs due to insufficient sealing, rich fiber cotton wool is used to plug the joints;
3. For wider pile joints, hemp root mixed with butter can be used to seal the joints, and a comprehensive treatment method of using fly ash, sawdust foam, and expanded cement to sprinkle along the pile surface in the direction of water flow outside the steel sheet pile cofferdam can also be adopted to achieve the purpose of sealing water.
Shandong Kungang Metal Technology Co., Ltd. mainly deals in U-shaped, Z-shaped, and L-shaped steel sheet piles. For many years, it has been engaged in domestic and international trade, and has many years of import and export experience. Shandong Kungang Metal Technology Co., Ltd. takes integrity and win-win as its business philosophy for development. It does not mind the size of an order, does not let go of any steel sheet pile defects, and always puts customers first. We look forward to cooperating with you!
Post time: Apr-29-2024