An underground fast fireproof and anti-explosion pressure-bearing closed composite structure and its implementation method

Abstract

The invention relates to an underground rapid fireproof anti-explosion pressure-bearing closed composite structure and an implementation method, and belongs to the technical field of underground catastrophe protection. The pressure-bearing closed composite structure comprises a pressure-bearing framework, a closed structure and a leaking stoppage structure. The pressure-bearing framework comprisestwo support frames wedged into the wall of a roadway; a gap is formed between the two supporting frames; each support frame comprises a plurality of single hydraulic supporting columns, transverse pressure-bearing supporting columns and transverse wedging supporting columns, a drill bit is arranged at the top of each single hydraulic supporting column, every two adjacent single hydraulic props are connected through a plurality of transverse pressure-bearing supporting columns, and a plurality of transverse wedging supporting columns are connected to the single hydraulic supporting columns located at two edges; the closed structure comprises a bag type air bag and a composite gel material packed in the bag type air bag, the bag type air bag is located in the gap between the two supportingframes; and the leaking stoppage structure is a fireproof fiber material sprayed in a gap between the closed structure and the roadway wall.

Description

technical field [0001] The invention relates to the technical field of downhole catastrophe protection, in particular to an underground fast fireproof, anti-explosion, pressure-bearing and airtight composite structure and an implementation method. Background technique [0002] In recent years, with the development of coal mining technology, coal mining equipment has become larger and larger, the unit yield of the working face has been continuously improved, and the extension of the roadway has become longer and longer. The ensuing ventilation system has become more complicated, and coal mine disasters have become more and more serious. The more serious it is, the more difficult it is to prevent and control, which seriously restricts the safe and efficient production of coal mines. As the management risk of the goaf in the working face is getting higher and higher, and efficient governance is becoming more and more difficult, it is concluded that in areas where explosion disa...

AI Technical Summary

Problems solved by technology

The quality and strength of the existing mine airtight walls are poor, and mine workers are vulnerable to the hazards of blast shock waves and toxic gases

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