Pipeline crossing pushing system for narrow deep valley or wide river and process of pipeline crossing pushing system

Abstract

The invention provides a pipeline crossing pushing system for a narrow deep valley or a wide river and a process of the pipeline crossing pushing system. The pushing system comprises a sending platform, a pushing rail, a transverse pushing device, a span guiding structure, a plurality of temporary handholding structures, a hinge device, a plurality of vertical jacking devices and a plurality of sending rollers, wherein the pushing rail and the transverse pushing device are arranged on the sending platform, and the vertical jacking devices are arranged at the tops of buttresses, the span guiding structure is connected with a first span truss, the temporary handholding structures are connected between the trusses, the transverse pushing device can push the span trusses forwards or pull the span trusses backwards, the hinge device is connected between the transverse pushing device and the tail end of the last span truss, the vertical jacking device can provide vertically upward or downward thrust for the spanning truss, and the sending rollers are arranged on the left side and the right side of the top of the pushing track and the buttress. The problem that truss crossing cannot be completed through hoisting on narrow valleys or wide rivers is solved, the requirement for safe installation of the truss is met, and the applicability of installation of pipelines in mountainous areas is expanded.

Description

technical field [0001] The invention relates to the technical field of installation and construction of large-scale crossing of oil and gas pipelines, in particular to a pipeline crossing jacking system for narrow deep valleys or wide rivers and its technology. Background technique [0002] Oil and gas pipeline truss spanning is an engineering structure that uses a bridge-like truss structure to carry oil and gas pipelines through canyons, rivers and other regions. [0003] Generally, oil and gas pipeline spanning has main structural forms such as suspension cable, cable-stayed cable, and truss. Among them, the truss type is a pipeline spanning structural form that is more commonly used at home and abroad and requires less investment. This structure is mainly composed of substructure (spanning foundation), superstructure (truss bridge body), oil and gas pipelines, etc. The main load-carrying structure is a truss-type steel structure. The truss-type steel structure and the p...

AI Technical Summary

Problems solved by technology

[0008] The inventor found through research that: combined with the structural characteristics of the pipeline truss spanning itself, the use of the truss jacking process can effectively solve the problem that large-span trusses in narrow mountainous areas or wide river areas cannot be hoisted in place at one time by large-scale hoisting equipment, and can effectively reduce large-scale The equipment entry road and the construction requirements of the prefabricated site will finally achieve fast, safe and efficient truss spanning installation

Images