A, the construction of high pier can adopt slip-form method or an effective method used by the contractor to pour concrete. The contractor shall submit the construction plan to the supervision engineer for approval 28 days before construction.
B, the contractor shall, according to the adopted construction method and construction load, make necessary structural checking calculation for the high pier, and report the checking calculation to the supervision engineer for approval before implementation.
C, during construction, the verticality or inclination of the pier should be strictly controlled, and the eccentricity of the top surface of the pier at the pouring place should be controlled. If any deviation is found, it should be corrected immediately.
D, concrete pouring should be continuous, if the pouring process is interrupted for some reason, the interruption time shall not exceed the initial setting time of the previous layer of concrete, otherwise it shall be treated as construction joints.
E, in the whole process of high pier construction, the contractor should take measures to strengthen the maintenance of pier concrete.
F all construction supports and working platforms shall have sufficient strength and rigidity, and necessary safety protection facilities shall be set to ensure construction safety.
G. In the process of high pier construction, the displacement of the construction site should be observed at any time, and the observation records should be made, so that corresponding measures can be taken to correct it at any time and reported to the supervision engineer for the record.
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