Coal mine underground roadway crossed three-dimensional structure

Abstract

The invention discloses a coal mine underground roadway crossed three-dimensional structure. The coal mine underground roadway crossed three-dimensional structure comprises a main plate, first fixingblocks are symmetrically connected to the bottom of the main plate through bolts, first supporting columns are fixedly connected to the bottoms of the first fixing blocks, second fixing blocks are fixedly connected to the bottoms of the first supporting columns, the bottoms of second supporting columns are fixedly connected to the upper surface of a connecting plate, supporting blocks are symmetrically and fixedly connected to the bottom of the connecting plate, and second studs are fixedly connected between the two sets of supporting blocks. The invention aims to provide the coal mine underground roadway crossed three-dimensional structure, when a coal mine underground roadway is fixedly supported, the whole device has the functions of multi-angle adjustment and length extension, an existing coal mine underground roadway crossed three-dimensional structure device is optimized to a certain extent, but the device can adapt to different underground terrains of a coal mine, the use rangeis enlarged to a certain extent, and the problems in the background technology are solved.

Description

technical field [0001] The invention belongs to the technical field of coal mine underground roadways, and in particular relates to a cross-dimensional structure of coal mine underground roadways. Background technique [0002] Coal mines are areas where human beings exploit coal resources in coal-rich mining areas. They are generally divided into underground coal mines and open-pit coal mines. When the distance to the surface is very close, it is generally chosen to directly strip the surface soil layer to excavate coal. This is an open-pit coal mine. Most of the coal mines in China are underground coal mines. The scope of coal mines includes a large area above and below ground and related facilities. Coal mines are excavated by humans Reasonable space excavated for coal-rich geological layers, usually including roadways, shafts and mining faces, etc. Coal is the most important solid fuel and a kind of combustible organic rock. It is formed by a certain geological age. In a...

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Problems solved by technology

[0003] In the process of underground coal mine mining, it is necessary to open up the coal mine underground roadway, advance in the coal seam through the room-and-pillar method, and use the beams and columns to support the mine pit. Generally, the beams and columns cooperate with the support plate as the three-dimensional intersection structure of the coal mine underground roadway, but the existing It is inconvenient to extend and shorten beams, columns and support plates, which narrows its application range and is less flexible when dealing with complex underground situations. Therefore, we propose a cross-dimensional structure of coal mine underground roadways to solve the existing technology problems in

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