1 quality assurance measures
There are many problems that need to be paid attention to to to ensure the quality of steel sheet piles. First of all, attention should be paid to the piling process, and the pile top must be installed in the construction process to avoid the situation that the pile top is knocked out during the piling process. In the process of steel sheet pile insertion, it is usually impossible to determine its verticality. Therefore, it is very necessary to detect the verticality in the construction process. Once the verticality is not good, it is necessary to correct it and carry out secondary construction. At the same time, in the first construction, there are certain requirements for the excavation depth. It's good to knock halfway during the knocking process, and then carry out verticality detection, so it's very convenient to pull out the pile in case of problems during the detection process. During the second construction, the depth should also be controlled. If the verticality test results are good, you can finalize the design. In the process of cofferdam, there will be some accidents, and it is very easy for the water level outside the cofferdam to be lower than that inside. In order to better form a balanced relationship between the two, the water in the cofferdam should be pumped out and closed after pumping out. Water leakage is also very easy to occur in the process of pumping water. Therefore, when pumping water, the leaking parts of steel sheet piles should be blocked with small substances.
2 construction technology
During construction, we should also pay attention to the construction technology. Relevant matters and methods should be paid attention to during construction. Before construction, steel plates for construction shall be transported to the construction site. Due to the heavy weight of steel plates, special transportation tools can be used for transportation. After the steel plates arrive, they should be spliced and then placed to ensure the construction quality. During construction, the steel plate should be reinforced to make it sink into the water better. Many problems will be encountered in the process of steel plate sinking. Once the bottom of the cofferdam is uneven, the cofferdam will leak water. Therefore, when this happens, the silt should be removed with a high-pressure water gun and then continue to sink. When the steel sheet pile sinks, it is mainly realized by its own weight. Therefore, before the steel sheet pile sinks, a small vibrating hammer can be installed on the steel sheet pile, which can better help the steel sheet pile sink. In the process of sinking, we should also pay attention to some construction techniques. We can add some very good quality woven bags outside the cofferdam to better ensure the height requirements. During cofferdam construction, it is necessary to know whether there is water leakage at the bottom of the cofferdam, and at the same time, the bottom can be fixed with stones to ensure the cofferdam effect. After the completion of the cofferdam, engineering inspection should be done to ensure the quality of the cofferdam. At the same time, the leaking parts should be treated in time to avoid similar situations.
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