CN104675398B

CN104675398B - The method crossing total rock section in seam mining process

Info

Publication number: CN104675398B
Application number: CN201410814380.2A
Authority: CN
Inventors: 冯月新; 佘春; 王应都; 张强; 弓宏飞; 郭万忠; 王爱国; 季哲强; 岳继宏; 刘�文; 张燕军; 赫学斌; 付茂全
Original assignee: Datong Coal Mine Group Co Ltd
Current assignee: Datong Coal Mine Group Co Ltd
Priority date: 2014-12-25
Filing date: 2014-12-25
Publication date: 2016-07-06
Anticipated expiration: 2034-12-25
Also published as: CN104675398A

Abstract

The present invention is a kind of method crossing total rock section in seam mining process, is first positioned at the part of total rock section on the rib of return airway and constructs every 10m the measure lane of a long 5m, and the end in all measure lanes is with a tunnel UNICOM of UNICOM；Then, when working face extraction to distance total rock section 10m place, in measure lane, explosion treatment is carried out to work surface direction construction vibrations eye；Finally in measure lane, install monomer column, it is ensured that lane inside ceiling panel is complete.In the inventive method, the rock gangway in work surface can be excavated in advance in total rock section working measure lane, work surface perforating number is greatly reduced during back production, avoid and blow out the hidden danger brought to top board in a large number, decrease unit equal loss, reduce because blowing out the damage brought to equipment, accelerate advance rate, it is ensured that per unit area yield.

Description

The method crossing total rock section in seam mining process

Technical field

The present invention relates to Coal Mining Technology field, a kind of method specifically crossing total rock section in seam mining process.

Background technology

Carboniferous System coal mining geology complicated condition, washes away, the geological structure such as karst collapse col umn, tomography is the principal element of restriction per unit area yield ability.At present, crossing the conventional method that geological structural belt takes is the mode adopting vibrations big gun, but which fltting speed is slow, device damage is serious, and 0.8～1.5 meter of coal seam alternating layers of ubiquity above Taiyuan seam group, put roof control difficulty during vibrations big gun, be therefore badly in need of a kind of quick, safe method of tackling key problem and carried out geological structural belt.

Summary of the invention

The invention aims to solve above-mentioned problems of the prior art, and a kind of method crossing total rock section in seam mining process is provided.

The present invention is achieved through the following technical solutions:

A kind of method crossing total rock section in seam mining process, comprise the steps: 1) on the rib of return airway, it is positioned at the part of total rock section constructs every 10m the measure lane of a long 5m, the specification in measure lane is high 3.5m, wide 3m, and the end in all measure lanes is with a tunnel UNICOM of UNICOM；2) after constructing in measure lane, when working face extraction to distance total rock section 10m place, to work surface direction construction vibrations eye in measure lane, implement shallow blasting, particularly as follows: utilize air rock drill to beat two rows vibrations eye on the wall of lane, measure lane, wherein, the distance of two rows vibrations eye is that to shake the distance of eye distance measure lane top board be that to shake the distance of eye distance measure lane base plate be 1000mm for 1000mm, lower row for 1000mm, upper row；Often in row's vibrations eye, the distance of two adjacent vibrations eyes is 1500mm, and the aperture of vibrations eye is 42mm, and the degree of depth of vibrations eye is 2m, and the explosive payload of each vibrations ophthalmic is less than 500g, and the sealing clay length of each vibrations ophthalmic is not less than 500mm；Two rows vibrations eye is that three presbyopia are arranged, number of times of blowing out is 10 one batch of big guns；3) after explosion, in measure lane, monomer column is installed, it is ensured that lane inside ceiling panel is complete.

Further, when working face extraction to total rock section, as rock still hard make unit to pass through time, carrying out locally drills and blasts again shakes rock, is conducive to back production, particularly as follows: at 3#-10# frame, often row's support makes a call to three rounds, spacing 1000mm, punches also with air rock drill.

In the inventive method, the rock gangway in work surface can be excavated in advance in total rock section working measure lane, work surface perforating number is greatly reduced during back production, avoid and blow out the hidden danger brought to top board in a large number, decrease unit equal loss, reduce because blowing out the damage brought to equipment, accelerate advance rate, it is ensured that per unit area yield.The inventive method compares the method putting vibrations big gun at work surface taking routine, and the time that can shift to an earlier date half is excessively complete, creates favourable guarantee for producing；The inventive method is combined to adopt and is cut about 1000 tons of rock less, greatly reduces the abrasion to equipment.

Accompanying drawing explanation

Fig. 1 is the construction schematic diagram of the inventive method.

Fig. 2 is the layout schematic diagram shaking eye in the inventive method.

Detailed description of the invention

Below in conjunction with accompanying drawing, the invention will be further described:

As shown in Figure 1, 2, a kind of method crossing total rock section in seam mining process, comprise the steps: 1) on the rib of return airway, it is positioned at the part of total rock section constructs every 10m the measure lane of a long 5m, the specification in measure lane is high 3.5m, wide 3m, and the end in all measure lanes is with a tunnel UNICOM of UNICOM；2) after constructing in measure lane, when working face extraction to distance total rock section 10m place, to work surface direction construction vibrations eye in measure lane, implement shallow blasting, particularly as follows: utilize air rock drill to beat two rows vibrations eye on the wall of lane, measure lane, wherein, the distance d of two rows vibrations eye₁The distance d of eye distance measure lane top board is shaken for 1000mm, upper row₂The distance d of eye distance measure lane base plate is shaken for 1000mm, lower row₃For 1000mm；Often in row's vibrations eye, the distance d of two adjacent vibrations eyes₄For 1500mm, the aperture of vibrations eye is 42mm, and the degree of depth of vibrations eye is 2m, and the explosive payload of each vibrations ophthalmic is less than 500g, and the sealing clay length of each vibrations ophthalmic is not less than 500mm；Two rows vibrations eye is that three presbyopia are arranged, number of times of blowing out is 10 one batch of big guns；3) after explosion, in measure lane, monomer column is installed, it is ensured that lane inside ceiling panel is complete.

When working face extraction to total rock section, as rock still hard make unit to pass through time, then carry out local and drill and blast rock is shaken, be conducive to back production, particularly as follows: at 3#-10# frame, often three rounds made a call to by row's support, spacing 1000mm, punches also with air rock drill.

Claims

1. the method crossing total rock section in a seam mining process, it is characterized in that, comprise the steps: 1) on the rib of return airway, it is positioned at the part of total rock section constructs every 10m the measure lane of a long 5m, the specification in measure lane is high 3.5m, wide 3m, and the end in all measure lanes is with a tunnel UNICOM of UNICOM；2) after constructing in measure lane, when working face extraction to distance total rock section 10m place, to work surface direction construction vibrations eye in measure lane, implement shallow blasting, particularly as follows: utilize air rock drill to beat two rows vibrations eye on the wall of lane, measure lane, wherein, the distance of two rows vibrations eye is that to shake the distance of eye distance measure lane top board be that to shake the distance of eye distance measure lane base plate be 1000mm for 1000mm, lower row for 1000mm, upper row；Often in row's vibrations eye, the distance of two adjacent vibrations eyes is 1500mm, and the aperture of vibrations eye is 42mm, and the degree of depth of vibrations eye is 2m, and the explosive payload of each vibrations ophthalmic is less than 500g, and the sealing clay length of each vibrations ophthalmic is not less than 500mm；Two rows vibrations eye is that three presbyopia are arranged, number of times of blowing out is 10 one batch of big guns；3) after explosion, in measure lane, monomer column is installed, it is ensured that lane inside ceiling panel is complete.

2. the method crossing total rock section in seam mining process according to claim 1, it is characterised in that: when working face extraction to total rock section, as rock still hard make unit to pass through time, then carry out local and drill and blast rock is shaken, be conducive to back production.