U-shaped steel and anchor cable collaborated support structure for laneway with large-deformation deep part

Abstract

The invention discloses a U-shaped steel and anchor cable collaborated support structure for a laneway with a large-deformation deep part. The U-shaped steel and anchor cable collaborated support structure comprises a first U-shaped steel section, a second U-shaped steel section, an anchor cable, clamp cables, a channel steel block and a cushion plate; one end of the first U-shaped steel section and two ends of the second U-shaped steel section are provided with rectangular holes with the same standard; round holes with the diameter equal to the diameter of the anchor cable are formed in the middles of the channel steel block and the cushion plate; the first U-shaped steel section and the second U-shaped steel section are overlapped; the rectangular hole in one end of the first U-shaped steel section and the rectangular hole in one end of the second U-shaped steel section are overlapped; the first U-shaped steel section and the second U-shaped steel section are fixed by the clamp cables; the opening of the channel steel block is reversely buckled in the opening at the overlapping position of the first U-shaped steel section and the second U-shaped steel section; the anchor cable penetrates through the channel steel block, the first U-shaped steel section, the second U-shaped steel section and the cushion plate to be fixed. The U-shaped steel and anchor cable collaborated support structure for the laneway with the large-deformation deep part is simple in structure, convenient to use and long in service life, the support strength is improved and integral damage is not easily generated.

Description

technical field [0001] The invention belongs to the field of engineering construction and application, and in particular relates to a coordinated support structure of U-shaped steel and anchor cables used in large deformation roadways in deep mines. Background technique [0002] U-shaped steel bracket refers to a plurality of U-shaped steel sections connected to each other through metal connectors to form a semi-(full) closed metal bracket that matches the cross-sectional shape of the roadway. It is widely used because of its simple structure, good performance, convenience and practicality, and moderate price. [0003] At present, in the support construction of shafts and geotechnical engineering, U-shaped steel metal connection devices are used to fix and connect two U-shaped steel sections that have been superimposed and overlapped at the end. This support method has a strong role in shaft engineering. adaptability. However, with the continuous increase of the mining dep...

AI Technical Summary

Problems solved by technology

Traditional support methods, such as anchor rods, anchor cables, U-shaped steel and their combination support methods, either have insufficient support strength, or are not suitable for the deformation of the surrounding rock, resulting in insufficient compressive performance, and most of them end in failure.

Images