Correction construction method for torsion of large water open caisson

Abstract

The invention relates to a correction construction method for torsion of a large water open caisson, and relates the technical field of open caisson construction. The torsion condition of the open caisson can be determined by calculating the preset torque borne by the open caisson through the preset uneven soil pressure standard value borne by the outer wall of the open caisson, then a riprap area and / or a dredging area are / is arranged on the outer wall of the open caisson, the riprap height of the riprap area and / or the dredging depth of the dredging area are / is determined according to the preset torque, and finally riprap operation and / or dredging operation are / is carried out, so that the open caisson bears a torque which is the same as the preset torque in the opposite direction, and therefore correction of torsion of the open caisson is achieved, and it is guaranteed that actual structural parameters of a bridge can meet design parameters, then the stability and the safety of the bridge are further improved, in addition, a plurality of different construction schemes are provided, and different construction conditions can be met. Therefore, according to the embodiment of the correction construction method for torsion of the large water open caisson, correction of the torsion of the open caisson in different soil textures can be realized, the construction is simple, the efficiency is high, and different construction conditions can be met.

Description

technical field [0001] The application relates to the technical field of caisson construction, in particular to a construction method for correcting the torsion of a large-scale overwater caisson. Background technique [0002] With the development of the economy, the construction of large deep-water bridges has gradually increased, and the construction technology of large bridges has also been continuously innovated and developed rapidly. The caisson foundation is widely used in the field of bridge engineering because of its high rigidity and easy construction. According to the natural conditions of the pier site of the caisson, it can be divided into two types: the caisson in the land area and the caisson in the water area. The construction of the caisson in the water area will first be manufactured and processed in the factory, and then launched into the water and floated to the pier site. The self-weight and pouring of well wall concrete are used to overcome the buoyancy,...

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Problems solved by technology

[0005] The embodiment of the present application provides a construction method for correcting the torsion of a large-scale caisson on water to solve the problem in the related art that the structural parameters of the bridge cannot meet the design parameters due to the torsion of the caisson

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