Self-propelled lifting composite trestle for tunnel deep-buried ditch construction

Abstract

The invention relates to a self-propelled lifting composite trestle for tunnel deep-buried ditch construction. The self-propelled lifting composite trestle for the tunnel deep-buried ditch construction comprises a self-propelled trestle and a simple trestle. The self-propelled trestle is connected with the simple trestle through a trestle rotating shaft. A hydraulic oil cylinder is connected to the upper portion of a bracket which is at the front end of the self-propelled trestle through an oil cylinder pipe rotating shaft. The hydraulic oil cylinder is connected with the simple trestle through an oil cylinder rod rotating shaft. A crawler walking system is connected to the lower end of the self-propelled trestle. The self-propelled lifting composite trestle has complete functions and little disturbance in construction. The electric crawler-type walking of the combined trestle is achieved, and the simple trestle can be lifted electrically to facilitate the operation of machinery on thebottom; the self-propelled lifting composite trestle is especially for the deep-buried ditch construction, and the installation of materials and deep-buried pipes and the transportation of concrete can be carried out on the simple trestle; and at the same time, the installation of materials and deep-buried pipes and the transportation of concrete can be synchronized with the construction of various processes, and construction interference is reduced.

Description

technical field [0001] The invention relates to the field of tunnel construction, in particular to a self-propelled lifting combined trestle bridge for tunnel deep-buried ditch construction. Background technique [0002] At present, it is known that self-propelled trestles are used in the construction of tunnel inverted arches, mainly adopting hydraulic mobile trestles, but in the northern region, all deep-buried central ditches are designed, involving excavation, support, pipe embedding, and pouring of deep-buried central ditches. Concrete, construction of temporary inverts and other construction procedures, and the construction length of the deep buried central ditch without circulation is limited (no circulation can not exceed 3m), and a slab of inverted arch is applied every 12m (that is, the deep buried central ditch is completed in 4 cycles) The construction length of the inverted arch with one board), the construction of the deep buried central ditch seriously restric...

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Problems solved by technology

[0002] At present, it is known that self-propelled trestles are used in the construction of tunnel inverted arches, mainly adopting hydraulic mobile trestles, but in the northern region, all deep-buried central ditches are designed, involving excavation, support, pipe embedding, and pouring of deep-buried central ditches. Concrete, construction of temporary inverts and other construction procedures, and the construction length of the deep buried central ditch without circulation is limited (no circulation can not exceed 3m), and a slab of inverted arch is applied every 12m (that is, the deep buried central ditch is completed in 4 cycles) The construction length of the inverted arch with one board), the construction of the deep buried central ditch seriously restricts the construction of the inverted arch, and it is easy to cause the safety distance between the inverted arch and the lining to exceed the standard and seriously affect the construction progress (involving the construction of the deep buried central ditch is only 1 month per month) 4.5 slabs can be completed, and the construction progress is only 54m / month), how to solve the mutual constraints of the deep buried central ditch with many construction procedures, affecting the construction of inverted arches and ensuring the safe distance of tunnel construction has become a major problem

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