Three-point supporting method for pipe joint prefabricating and pushing construction according to factory method

Abstract

The invention discloses a three-point supporting method for pipe joint prefabricating and pushing construction according to the factory method, and particularly relates to a three-point supporting method for achieving smooth pushing on a pipe joint through a three-point supporting hydraulic system. The three-point supporting method comprises a master control circuit for controlling the three-point supporting hydraulic system to jack and push a pipe joint section of the pipe joint; when the pipe joint section is pushed to a proper position, the three-point supporting hydraulic system is demounted; after pre-casting on a next pipe joint section is finished, the three-point supporting hydraulic system is respectively connected with the supporting jacks for the two pipe joint sections; the master control circuit controls the three-point supporting hydraulic system to jack and push the two pipe joint sections; after the two pipe joint sections are pushed to proper positions, the three-point supporting hydraulic system is demounted; after pre-casting on a next pipe joint section is finished, the three-point supporting hydraulic system is respectively connected with the supporting jacks for the three pipe joint sections; the rest can be done in the same manner until pushing on all the pipe joint sections forming the pipe joint is finished.

Description

technical field [0001] The invention relates to a three-point support method for prefabricated pipe joint pushing construction by factory method, in particular to a three-point support method for realizing stable pipe joint pushing through a three-point support hydraulic system. Background technique [0002] At present, the prefabrication of super-large immersed tubes basically adopts two construction ideas: the factory method and the dry dock method. Because the dry dock method has a long turnover period for construction equipment and cannot meet the requirements of the construction period, the factory method is often used. The basic idea of ​​this method is Assembly line production and construction, improve efficiency and shorten construction period. For the super-large prefabricated immersed tubes constructed by the factory method in the world, the jacking operation basically adopts two ideas: centralized jacking and multi-point decentralized synchronous jacking; the cent...

AI Technical Summary

Problems solved by technology

[0002] At present, the prefabrication of super-large immersed tubes basically adopts two construction ideas: the factory method and the dry dock method. Because the dry dock method has a long turnover period for construction equipment and cannot meet the requirements of the construction period, the factory method is often used. The basic idea of ​​this method is Assembly line production and construction, improve efficiency and shorten construction period

For the super-large prefabricated immersed tubes constructed by the factory method in the world, the jacking operation basically adopts two ideas: centralized jacking and multi-point decentralized synchronous jacking; the centralized jacking scheme requires the design of heavy and complicated jacking mechanisms and jacking beams Reaction seat, the actual construction conditions are difficult to meet, and it is inconvenient to carry out pipe joint construction in the turning section (because of the pipe joint jacking in the curved section); decentralized jacking has the advantages of simple jacking structure, uniform distribution of pipe joint jacking force and steel structure However, in the jacking construction, how to better support the pipe joints and make the support of each support jack more stable, so that the pipe joint lifting and pushing process is more stable, there is currently no good solution

Images