Double hinge deviation control system of pipe jacking machine

Abstract

The invention discloses a double hinged deviation control system for a pipe jacking machine, comprising: a front hinged oil cylinder group, including a plurality of front hinged oil cylinders connecting two mutually nested middle casings of the pipe jacking machine and the rear casing of the pipe jacking machine; The rear articulated oil cylinder group includes a plurality of rear articulated oil cylinders connecting two sections of the inter-intermediate front housing and the inter-intermediate rear housing which are nested in each other; for providing the front articulated oil cylinder and / or the rear articulated oil cylinder Hydraulic control system for hydraulic control and power. The double-hinge deviation control device of the pipe jacking machine of the present invention can realize the high-precision correction control of the axis deviation of the super-large-section rectangular pipe jacking machine through hydraulic and electrical control, and is equipped with multiple combined sealing systems at the hinge position, which can effectively reduce surface settlement and shielding. It has the characteristics of simple operation, safety and reliability, and fast response to deviation correction.

Description

technical field [0001] The invention relates to a double-hinge deviation control system for a pipe jacking machine, in particular to a double-hinge deviation control system for super-large rectangular cross-section pipe jacking belonging to the field of underground construction machinery. Background technique [0002] With economic development, the demand for the development and utilization of underground space increases, especially in projects such as street crossing tunnels and underground corridors of subway stations, the construction of rectangular tunnels has greater advantages in space development. The channel section obtained by using the rectangular pipe jacking machine construction is not only close to the actual section, has a high space utilization rate, but also brings convenience to the renovation and decoration in the later stage of the project, saves engineering costs, and has a good economy sex. [0003] However, during the excavation process of the rectangu...

AI Technical Summary

Problems solved by technology

[0003] However, during the excavation process of the rectangular pipe jacking, it is impossible to advance completely in the design direction due to many factors such as changes in the soil quality of the ground, uneven thrust of the jacking device, uneven backfill grouting, uneven clearance of the tail shield, and inaccurate pipe joint axes. , there is often a deviation between the actual trajectory and the design trajectory

Due to the particularity of the rectangular jacking tube, the attitude deviation will be more obvious and more difficult to control

This will lead to unpredictable results (such as ground subsidence, shield sinking, deformation and rupture of pipe joints, etc.) and cause serious economic losses

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