Roadway support truss and mounting method thereof

Abstract

The invention relates to a roadway support truss and a mounting method of the roadway support truss. The roadway support truss comprises a top beam frame, two shoulder-arched frames, two column leg frames, a plurality of anchor rods, a plurality of pins and a concrete bonding layer, wherein the top beam frame comprises two top beam main ribs and two top beam auxiliary ribs; the top beam main ribs and the top beam auxiliary ribs are connected integrally by a plurality of reinforcing ribs; two ends of the top beam frame are welded with connectors with hinge holes respectively; one of the shoulder-arched frames comprises two arched main ribs and two arched auxiliary ribs; the arched main ribs and the arched auxiliary ribs are connected integrally by a plurality of reinforcing ribs; two ends of each shoulder-arched frame are welded with connectors with hinge holes respectively; one of the column leg frames comprises two column leg main ribs and two column leg auxiliary ribs respectively; the column leg main ribs and the column leg auxiliary ribs are connected integrally by a plurality of reinforcing ribs; the top ends of the column leg frames are welded with connectors with hinge holes respectively; the plurality of anchor rods with trays are used to integrally connect a truss by nuts; and concrete mortar is sprayed on a structural member of the roadway truss to form the concrete bonding layer. The roadway support truss can be widely applied to construction support of underground coal mine roadways or underground railway tunnels, and the like.

Description

technical field [0001] The invention relates to underground construction safety equipment, in particular to a roadway support truss used in the construction process of coal mines or underground railways and its installation method. Background technique [0002] Arched trusses are called light lattice frames in foreign countries, and the light lattice frames are welded by steel bars or rebars of different thicknesses, belonging to the light arched truss support series. Although the light arched truss support used alone in coal mines has good mechanical properties, light weight, and low cost, it still has many supporting properties when used as support equipment in broken zones, coal roadways, and soft rock roadways. Failure to meet security requirements. Contents of the invention [0003] In view of the above problems, the object of the present invention is to provide a roadway support truss with strong anchoring performance and high support strength and an installation me...

AI Technical Summary

Problems solved by technology

Although the light arched truss support used alone in coal mines has good mechanical properties, light weight, and low cost, it still has many supporting properties when used as support equipment in broken zones, coal roadways, and soft rock roadways. Failure to meet security requirements

Images