Construction method of steel sheet pile cofferdam

The practical value of steel sheet piles has been reflected in the innovative production of many new products, such as some special welded buildings; Metal plates made by hydraulic vibration pile drivers; Sealing and bonding of water gates and treatment of factory coatings. Many factors ensure that steel sheet piles maintain one of the most useful manufacturing component elements, which is not only beneficial for the excellence of steel quality, but also for the investigation and development of the steel sheet pile market; Beneficial for optimizing the design of product features to better meet user needs.
So what are the details of steel sheet pile construction? Let's take a look together:
(1) Before driving the pile, the concave groove at the pile tip should be sealed to prevent soil from squeezing in. The locking mouth should be coated with butter or other grease. For steel sheet piles that have been out of repair for a long time, have deformed locks, and are severely corroded, they should be repaired and corrected. For piles that have bent and deformed, they can be corrected using methods such as hydraulic jack pressing or fire drying.
(2) Division of pile driving flow sections.
(3) During the pile driving process. To ensure the verticality of the steel sheet pile. Use two theodolites to control in two directions.
(4) The position and direction of the first and second steel sheet piles to be driven should be precise to serve as a guiding template. Therefore, measurements should be taken every 1m of driving, and temporary fixation should be made by welding steel bars or steel plates with the surrounding purlin support immediately after reaching the predetermined depth.
The first type of energy-saving steel is the steel sheet pile, which has a basic structure of steel sheet piles with joint structures on both sides, forming walls in the ground or water. Due to its special structure, it has unique advantages: high strength, lightweight, good water resistance, strong durability, and a service life of 20-50 years; And it can be reused, usually more than 25 times; The environmental protection effect is significant, which can greatly reduce the amount of soil and concrete used during construction, effectively protecting land resources; It has strong disaster relief and rescue functions, especially in flood control, collapse, collapse, and quicksand rescue and rescue, with particularly fast results; The construction is simple, the construction period is shortened, and the construction cost is relatively low.
It is precisely because steel sheet piles have so many unique functions and advantages that their applications are very extensive. For example, in permanent structural buildings, they can be used for docks, unloading yards, embankment protection, retaining walls, retaining walls, breakwaters, diversion embankments, shipyards, gates, and so on; On temporary structures, it can be used for blocking mountains, temporarily expanding banks, cutting off flow, building bridges and cofferdams, laying large pipelines, and excavating temporary ditches with retaining walls for soil, water, and sand; In flood control and emergency rescue, it can be used for flood control, landslide prevention, collapse prevention, quicksand prevention, etc. The application of steel sheet piles is becoming increasingly widespread, and large-scale projects such as Hangzhou Bay Bridge and Pudong Airport have adopted this new type of energy-saving steel sheet pile.
At the beginning of the 20th century, due to the influence of cheap land and human resources, coupled with the basic blank state of domestic production, the application and development of steel sheet piles as metal building materials in China were still very slow. With the rapid development of China's economy, various fast, efficient, and environmentally friendly construction methods have been recognized and developed. Undoubtedly, with the development of technology, the widespread application of steel sheet piles will usher in a new era in China's construction field, achieve a new revolution in China's construction methods, and become a "new gem" in the steel industry.