High-strength escape pipeline convenient to lift

Abstract

The invention relates to a high-strength escape pipeline convenient to lift. The high-strength escape pipeline convenient to lift comprises a plurality of pipe bodies connected with one another end toend, one ends of the pipe bodies extend to form bearing head sections, and the other ends of the pipe bodies extend to form inserting head sections. Nine threaded grooves are integrally and uniformlyformed in the outer surface of each pipe body at intervals in the circumferential direction, and twelve vertical grooves are uniformly formed in the inner surface of each pipe body at intervals in the circumferential direction. Pipe wall sections of the pipe bodies are of a honeycomb structure. The threaded grooves and the vertical grooves are filled with styrofoam. A plurality of positioning inserting-grooves are integrally and uniformly formed in the inner surface of each bearing head section at intervals in the circumferential direction, and positioning inserting-blocks with the number same as the positioning inserting-grooves of the bearing head sections and matched with the positioning inserting-grooves of the bearing head sections are integrally and uniformly arranged on the outersurface of each bearing head section at intervals in the circumferential direction, nuts are arranged on the middle parts of the positioning inserting-grooves and the positioning inserting-blocks in an embedded mode, and the every two adjacent pipe bodies are connected through bearing-inserting of the bearing head sections and the inserting head sections and nut fixing by bolts. The high-strengthescape pipeline convenient to lift is light in weight, good in compression resistance, resistant in corrosion, convenient to lift and good in bearing and fastening performance.

Description

technical field [0001] The invention belongs to the field of tunnel construction safety and relates to escape pipeline technology, in particular to a high-strength escape pipeline which is convenient for hoisting. Background technique [0002] Tunnel excavation operations in weak strata with high grade surrounding rocks are very likely to encounter landslide accidents, especially the "closed door" landslide. According to the requirements of the industry, when constructing in IV, V, and VI surrounding rocks, special escape pipes must be installed at the tunnel excavation site and advanced with the excavation of the tunnel face. The traditional tunnel escape pipe is made of steel, which is very inconvenient during the process of advancement. Especially in the step method construction, the connection method of the pipe at the step is usually direct welding with a joint with a certain angle, or using a joint pipe with a certain angle. Connection, and the connection method gener...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the problems of heavy weight, poor compression resistance and unstable connection and installation of tunnel escape pipes in the prior art, and provide a light weight, good high impact resistance, good push resistance and corrosion resistance. , Undertake high-strength escape pipes with good fastening performance and easy hoisting

Images