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How to prevent leakage of steel sheet piles?

According to the different processing technology, steel sheet piles can be divided into hot-rolled/stretched steel sheet piles and cold-formed steel sheet piles. Precautions for leakage prevention and seepage control of steel sheet piles: During the whole process of driving steel sheet piles, it is necessary to do a good job in positioning and guiding, to ensure a good bite between piles, and to ensure that the wall of steel sheet piles is vertical and close to the periphery of the dike, which is the key to waterproof and seepage control; In the process of foundation pit pumping, when there is water leakage in the lock mouth, cotton wool rich in fiber is used to stop the joint and stop the leakage; For wide pile joints, hemp root can be mixed with butter to stop water, or a comprehensive treatment method of spraying fly ash, sawdust and shrinkage cement along the pile surface along the direction of water flow can be adopted to achieve the purpose of stopping water.

Can also be embedded in wood strips, cotton wool, hemp wool and so on. If it is found that it is on the inside of the pile after pumping water, or the coal ash mixed with sawdust is thrown on the outside of the leaking water. When I used to do it, I also stuffed sawdust directly in the seam. Construction preparation: before piling, the notch at the pile tip should be blocked to prevent soil from squeezing in, and the lock should be coated with butter or other grease. For steel sheet piles that have been in disrepair for a long time, if the lock is deformed and corroded seriously, the renovation and correction should be stopped, and the bent piles can be stopped by hydraulic jack jacking or fire drying. Division of piling flow section. In the process of piling. In order to ensure the verticality of steel sheet piles. It is controlled by two theodolite in two directions. The position and direction of the first and second steel sheet piles to be driven should be ensured to be accurate, so as to play a guiding role. Therefore, once every 1m, the purlin bracket shall be temporarily fixed by electric welding with steel bars or steel plates immediately after it is driven to a predetermined depth.