Method for underground chamber digging and laneway opening digging

Abstract

The invention relates to a method for advancing the port and the underground chamber of a roadway. The method of the invention adopts the technologies of hole drilling, coal blasting and smooth blasting, coal loading and transporting, hole drilling and supporting, etc., and is characterized in that the technologies of coal loading and transporting as well as hole drilling and supporting use a coal roadway drilling, loading and transporting integrated anchor windlass and a scraper blade transporter system to realize the single and double-roadway advancing with more flexibility, convenience, higher yield and efficiency, thus improving the mechanical equipment level of an advancing operating face; the method of the invention can be applicable to large, medium and small-sized coal mines.

Description

technical field [0001] The invention belongs to underground coal excavation technology, in particular to a method for tunnel opening excavation and chamber excavation using comprehensive mechanized excavation equipment in large coal mines and medium and small coal mines. Background technique [0002] At present, tunneling technologies such as blasting, fully mechanized and continuous mining are generally used in roadway excavation of various coal mines in my country. These technologies have the following problems: [0003] 1. The roadway excavation cannot be opened by itself: the roadway opening needs to be opened manually, resulting in a series of problems such as low opening footage, large number of people, high labor intensity of workers, increased auxiliary processes, and low efficiency; [0004] 2. Large installed power and high energy consumption: most of the installed power of fully mechanized excavation working faces is above 250kw; the installed power of continuous ...

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Problems solved by technology

[0003] 1. The roadway excavation cannot be opened by itself: the roadway opening needs to be opened manually, resulting in a series of problems such as low opening footage, large number of people, high labor intensity of workers, increased auxiliary processes, and low efficiency;

[0004] 2. Large installed power and high energy consumption: most of the installed power of fully mechanized excavation working faces is above 250kw; the installed power of continuous mining machines is as high as 2000kw or above;

[0005] 3. Difficulty in support: the support of gun excavation and comprehensive excavation is still manual support at present;

[0006] 4. Low efficiency: Since the mechanical cutting and coal cutting takes longer than blasting and blasting, the blasting and comprehensive excavation support is manual support, which requires a lot of people, so the speed is slow and the efficiency is low;

[0007] 5. Poor adaptability: It is difficult for a fully mechanized excavator model to adapt to various sections;

[0008] 6. The auxiliary workload is large;

[0009] 7. Roof problem: At present, all kinds of excavation methods are operated under the empty roof, and advanced support cannot be realized

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