JP6684922B2 - Zero-discharging short-faced pillarless coal mining method - Google Patents

Zero-discharging short-faced pillarless coal mining method Download PDF

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JP6684922B2
JP6684922B2 JP2018555277A JP2018555277A JP6684922B2 JP 6684922 B2 JP6684922 B2 JP 6684922B2 JP 2018555277 A JP2018555277 A JP 2018555277A JP 2018555277 A JP2018555277 A JP 2018555277A JP 6684922 B2 JP6684922 B2 JP 6684922B2
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ノン ヂャン
ノン ヂャン
ヂォンヂォン シェ
ヂォンヂォン シェ
チュン ウェイ
チュン ウェイ
ジュンイャオ ヂョウ
ジュンイャオ ヂョウ
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China University of Mining and Technology CUMT
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C41/00Methods of underground or surface mining; Layouts therefor
    • E21C41/16Methods of underground mining; Layouts therefor
    • E21C41/18Methods of underground mining; Layouts therefor for brown or hard coal
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F15/00Methods or devices for placing filling-up materials in underground workings
    • E21F15/005Methods or devices for placing filling-up materials in underground workings characterised by the kind or composition of the backfilling material
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00Setting anchoring-bolts

Description

本発明は、ぼたゼロ排出短切羽無支柱石炭採掘方法に関し、特に縦坑のぼたゼロ排出処理時に適用される。 TECHNICAL FIELD The present invention relates to a method for mining porcelain zero-emission short- faced pillarless coal, and is particularly applied to the process of zero-emission pit slag discharge processing.

我が国の炭鉱は毎年億トン単位のぼたを生み出しているものの、炭鉱がぼたを処理する主な手法として、当面は野積となっている。それにより、大量の土地が占用され、元の地形や植生を埋めるか破壊するだけではなく、野積による自燃が多数あり、それにより放出された有毒物質は人類の生存環境と鉱区の生態環境に対して深刻な危害を与えている。   Although coal mines in Japan produce 100 million tons of trash every year, coal mine is still the main method for treating slag for the time being. As a result, a large amount of land is occupied and not only fills or destroys the original landforms and vegetation, but there is also a lot of self-combustion due to field accumulation. Is causing serious harm.

我が国は、すでにいくつかのぼた処理方法を考案していたものの、その多くは、炭鉱がまずぼたを排出してから利用をすることである。そのうち、一部が処理されたが、それにおいて大量の粉塵が出されており、環境への2次汚染となっているため、坑内のぼたのゼロ排出の採掘方法が急用されている。   Although Japan has already devised several methods for treating slag, most of them are for the coal mine to discharge the slag first before using it. A part of them has been treated, but a large amount of dust is generated in it, which is a secondary pollution to the environment. Therefore, a method of mining zero emissions of pits is urgently needed.

本発明の目的は、従来技術の不足を克服し、簡単で効率的なぼたゼロ排出短切羽無支柱石炭採掘方法を提供することである。 It is an object of the present invention to overcome the deficiencies of the prior art and to provide a simple and efficient method of mining zero-emission short-faced pillarless coal mining.

ぼたゼロ排出短切羽無支柱石炭採掘方法として、
a.縦坑の状況に基づき、縦坑の底付近において短切羽を設置し、当該短切羽は、採掘開始位置が縦坑の底から500m〜1000m離れており、縦坑の底から離れる方向へ採掘して行くことと、
b.他の縦坑の採掘切羽で発生したすべてのぼたを短切羽まで搬送し、短切羽に対し、完全採掘し完全充填の手法で採掘し、ぼたで短切羽を充填しながら採掘して行くと同時に、採掘において坑道の天板と側壁に対しアンカーボルト支保を行う。アンカーボルト支保は、短切羽の充填面の辺縁に沿う支保と、石炭本体側における支保とを含み、支保をした後、短切羽の外側で坑道を形成させると共に、現在の短切羽と隣接する短切羽の外側で坑道を掘進することと、
c.坑道の掘進が終わった後、坑道から現在の短切羽へと開削部を掘進する。坑道と隣接する掘進坑道とを利用して、隣接する短切羽の充填採掘切羽を形付けて、引き続き完全採掘し完全充填の手法で採掘し、ぼたを埋戻す同時に掘進設備を転移して次の短切羽の隣接する坑道や開削部を掘進し、次となる短切羽での採掘準備をすることと、
e.ステップbとcを繰り返すことによって、縦坑で生み出したすべてのぼたを処理するよう、縦坑のぼたを処理する短切羽の連続採掘を実現し、ぼたの地上へのゼロ排出を実現させることとを含むことを特徴とする。
As a method of mining coal without zero waste and short- faced pillars,
a. Based on the status of the shafts, a short tunnel face is placed in the near with the bottom of the shafts, the short working face is mined start position is away From there 500m~1000m of shafts, a direction away From there the shafts Mining to
b. Conveying the button of all that occurred in mining working face of the other shafts to short working face, for short working face, completely mined and mined in complete filling of the technique, go to mining, while filling the Botade short Face At the same time, anchor bolts will be supported on the roof and side walls of the mine during mining. Anchor bolt支保 includes a 支保 along the edge of the filling surface of the short working face, and a 支保 in coal body, after the 支保, with the formation of tunnels outside the short working face, adjacent to the current short-Face Excavating a mine outside the short face ,
c. After finishing the excavation of the tunnel, excavate the excavated part from the tunnel to the current short face . Utilizing the tunnel and the adjoining tunnel, shape the adjoining mining face of the short cutting face adjacent to it, and then perform complete mining and mining by the method of complete filling, and relocate the slag at the same time by transferring the excavation facility to the next Of excavating the adjacent tunnel and excavation part of the short face of No. 2, and preparing for mining with the next short face ,
e. By repeating steps b and c, it realizes continuous mining of short facets that treat the pit's slag to treat all the slag produced in the pit, and realizes zero discharge of the pit to the ground. It is characterized by including and.

前記短切羽は地下でのぼた保管に使われ、幅が約30〜50mで、高さが炭層の高さとなっており、長さが1000m〜3000mである。前記坑道の幅は3〜6mである。前記短切羽の採掘順序は前進式と後退式が交互に行われており、前記坑道の掘進順序はずっと前進式である。 The short face is used for storing underground waste and has a width of about 30 to 50 m, a height of the coal seam, and a length of 1000 to 3000 m. The width of the tunnel is 3 to 6 m. The mining order of the short face is alternated between the forward type and the backward type, and the excavation order of the tunnel is always the forward type.

有益な効果:本発明は上記の技術案を採用することで、従来技術と比較して下記の利点を備えている。
(1)石炭採掘において生み出されたすべてのぼた等の固体廃棄物は、埋め戻すことによって、地上へ排出することがなく、そのまま坑内で処理される。これにより、ぼたのゼロ排出を実現し、ぼた排出による汚染を回避することができると共に、地上におけるぼたの処理コストも大幅に抑えている。
(2)短切羽における採掘は小型の石炭採炭機と10基程度の充填液圧支柱だけを必要とし、縦坑の高投入を避けており、従来の充填技術による採掘効率低下と正常生産遅延の問題も克服した。
(3)短切羽で採掘し充填してから坑道を形成することで、坑道の掘進が減らされ、掘進コストを低減している。
(4)ぼたと石炭の置換を通じて、支柱レス化を実現させて、資源利用の最大化を図っている。また、短切羽において完全採掘し完全充填することにより、天板を完全にコントロールし、岩層のロスレス採掘を実現させ、普及する価値が高い。
Beneficial effect: The present invention has the following advantages over the prior art by adopting the above technical solution.
(1) All solid wastes such as slag produced in coal mining are backfilled and are not discharged to the ground, but are directly processed in the mine. As a result, it is possible to achieve zero emission of spills, avoid pollution caused by spills, and significantly reduce the cost of disposing of spills on the ground.
(2) Mining with a short face requires only a small coal mining machine and about 10 filling hydraulic struts, avoiding high vertical shaft input, and the conventional filling technology reduces mining efficiency and delays normal production. I have overcome the problem.
(3) By excavating and filling with a short face and then forming a gallery , the digging of the gallery is reduced and the digging cost is reduced.
(4) Through the replacement of slag and coal, a pillar-less structure is realized to maximize resource utilization. In addition, by completely mining and filling the short face , the top plate is completely controlled, and lossless mining of rock layers is realized, which is highly valued for widespread use.

図1は本発明に係るぼたゼロ排出短切羽無支柱石炭採掘方法の前進式採掘を示す図である。FIG. 1 is a view showing a forward mining method of a spill-free short-faced pillarless coal mining method according to the present invention. 図2は本発明に係るぼたゼロ排出短切羽無支柱石炭採掘方法の後退式採掘を示す図である。FIG. 2 is a diagram showing a backward mining method of the slag- free short-faced pillarless coal mining method according to the present invention.

以下、図を参照しながら本発明の実施例をより詳細に説明する。
図1と図2に示されているように、本発明のぼたゼロ排出短切羽無支柱石炭採掘方法の特徴として、下記の工程を含む。
a.縦坑の状況に基づき、縦坑の底付近において短切羽1を設置し、当該短切羽1は地下でのぼた保管に使われ、幅が約30〜50mで、高さが炭層の高さとなっており、長さが1000m〜3000mである。前記短切羽1は、採掘開始位置が縦坑の底から500m〜1000m離れており、縦坑の底から離れる方向へ採掘して行く。前記短切羽1の採掘順序は前進式と後退式が交互に行われており、前記短切羽1の掘進順序はずっと前進式である。
b.他の縦坑の採掘切羽で発生したすべてのぼたを短切羽1まで搬送し、短切羽1に対し、完全採掘し完全充填の手法で採掘し、ぼたで短切羽1を充填しながら採掘して行くと同時に、採掘において坑道の天板と側壁に対しアンカーボルト支保を行う。アンカーボルト支保は、短切羽1の充填面の辺縁に沿う支保と、石炭本体側における支保とを含む。支保をした後、短切羽1の外側で幅が3〜6mである坑道2を形成させると共に、現在の短切羽1と隣接する短切羽5の外側で坑道3を掘進する。
c.坑道3の掘進が終わった後、坑道3から現在の短切羽1へと開削部4を掘進する。坑道2と隣接する掘進坑道3とを利用して、隣接する短切羽5の充填採掘切羽を形付けて、引き続き完全採掘し完全充填の手法で採掘し、ぼたを埋戻す同時に掘進設備を転移して次の短切羽の隣接する坑道6や開削部4を掘進し、次となる短切羽での採掘準備をする。
e.ステップbとcを繰り返すことによって、縦坑で生み出したすべてのぼたを処理するよう、縦坑のぼたを処理する短切羽1の連続採掘を実現し、坑内のぼたのゼロ排出を実現させる。
Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings.
As shown in FIG. 1 and FIG. 2, the following steps are included as a feature of the method for mining slag zero-emission short faceless strut coal of the present invention.
a. Based on the status of the shafts, established a short working face 1 in the near with the bottom of the shafts, the short working face 1 is used to store that URN underground, a width of about 30 to 50 m, the coal seam height Height The length is 1000 m to 3000 m. The short working face 1, mining start position is away From there 500m~1000m of shafts, go mined to the bottom or we leave the direction of shafts. The mining order of the short cutting face 1 is alternately the forward type and the backward type, and the excavation sequence of the short cutting face 1 is always the forward type.
b. Conveying the button all generated in mining working face of the other shafts to short working face 1, to the short tunnel face 1, completely mined mined in full filling technique, while filling the Botade short working face 1 mining At the same time, the anchor bolts are supported to the top plate and the side wall of the tunnel during mining. Anchor bolt支保 includes a 支保 along the edge of the filling surface of the short working face 1, and a 支保 in coal body. After the 支保, width outside of the short working face 1 together with to form a tunnel 2 which is 3 to 6 m, to excavation of tunnels 3 outside the short working face 5 adjacent to the current short working face 1.
c. After the excavation of the mine 3 is completed, the excavated portion 4 is dug from the mine 3 to the current short face 1. Using the excavation gallery 3 adjacent to the mine 2, give form to fill mining working face of the adjacent short working face 5, subsequently completely mined mining with full filling technique, transition simultaneously excavation equipment returns embedding the button and by excavating the tunnel 6 and cutting unit 4 adjacent the next short working face, the mining preparation in a short working face of the next.
e. By repeating steps b and c, continuous mining of the short cutting face 1 that treats the slag of the shaft is realized so that all the slag produced in the shaft is processed, and zero discharge of the slag inside the shaft is realized. Let

短切羽
坑道
3 坑道
開削部
5 隣接する短切羽
6 隣接する坑道
1 Short Face 2 Road 3 Road 4 Open-cut 5 Adjacent Short Face 6 Adjacent Road

Claims (4)

ぼたゼロ排出短切羽無支柱石炭採掘方法であって、
a.縦坑の状況に基づき、縦坑の底付近において短切羽(1)を設置し、当該短切羽(1)は、採掘開始位置が縦坑の底から500m〜1000m離れており、縦坑の底から離れる方向へ採掘して行くことと、
b.他の縦坑の採掘切羽で発生したすべてのぼたを短切羽(1)まで搬送し、短切羽(1)に対し、完全採掘し完全充填の手法で採掘し、ぼたで短切羽(1)を充填しながら採掘して行くと同時に、採掘において坑道(3)の天板と側壁に対しアンカーボルト支保を行う。アンカーボルト支保は、短切羽(1)の充填面の辺縁に沿う支保と、石炭本体側における支保とを含み、支保をした後、短切羽(1)の外側で坑道(2)を形成させると共に、短切羽(1)と隣接する短切羽(5)の外側で坑道(3)を掘進することと、
c.坑道(3)の掘進が終わった後、坑道(3)から現在の短切羽(1)へと開削部(4)を掘進する。坑道(2)と隣接する掘進坑道(3)とを利用して、隣接する短切羽(5)の充填採掘切羽を形付けて、引き続き完全採掘し完全充填の手法で採掘し、ぼたを埋戻す同時に掘進設備を転移して次の短切羽の隣接する坑道(6)や開削部(4)を掘進し、次となる短切羽での採掘準備をすることと、
e.ステップbとcを繰り返すことによって、縦坑で生み出したすべてのぼたを処理するよう、縦坑のぼたを処理する短切羽(1)の連続採掘を実現し、坑内のぼたのゼロ排出を実現させることとを含む、ことを特徴とする、ぼたゼロ排出短切羽無支柱石炭採掘方法。
Button a zero discharge short working face strutless coal mining method,
a. Based on the status of the shafts, established a short working face (1) in the near with the bottom of the shafts, the short working face (1) is mined start position is away From there 500m~1000m of shafts, shafts and to go to mining in a direction away bottom or et al.,
b. All occurred in mining working face of the other shafts of the button conveyed to the short working face (1), with respect to the short cutting face (1), completely mined mined in full filling technique, Botade short working face (1 ), The anchor bolts are supported to the top plate and the side wall of the tunnel (3) during the mining. Anchor bolt支保 includes a 支保 along the edge of the filling surface of the short working face (1), and a 支保 in coal body, after the 支保 to form a tunnel (2) outside the short working face (1) Together with excavating the tunnel (3) outside the short face (5) adjacent to the short face (1),
c. After the excavation of the tunnel (3) is finished, the excavated part (4) is excavated from the tunnel (3) to the current short face (1). Using the tunnel (2) and the advancing tunnel (3), shape the filling and mining face of the adjoining short face (5), and then complete mining and mining by the method of complete filling, and bury the slag. and that simultaneously transfer the excavation equipment back to excavation adjacent tunnel (6) and excavation of the next short working face (4), the mining preparation in a short working face as the following,
e. By repeating steps b and c, continuous mining of the short cutting face (1) that treats the shaft pit slag is realized so that all the slag produced in the shaft pit is treated, and zero discharge of the pit slag is achieved. The present invention is a method for digging zero-emission short- faced pillarless coal mining method, which comprises:
前記短切羽(1)は地下でのぼた保管に使われ、幅が約30〜50mで、高さが炭層の高さとなっており、長さが1000m〜3000mであることを特徴とする、請求項1に記載のぼたゼロ排出短切羽無支柱石炭採掘方法。 The short face (1) is used for storing underground slops and has a width of about 30 to 50 m, a height of the coal seam, and a length of 1000 to 3000 m. The method for digging zero-emission short- faced pillarless coal according to claim 1. 前記坑道(2)の幅が3〜6mであることを特徴とする、請求項1に記載のぼたゼロ排出短切羽無支柱石炭採掘方法。 The method for mining spillless zero-discharging short faceless pillars according to claim 1, characterized in that the width of the tunnel (2) is 3 to 6 m. 前記短切羽(1)の採掘順序は前進式と後退式が交互に行われており、前記坑道(3)の掘進順序はずっと前進式であることを特徴とする、請求項1に記載のぼたゼロ排出短切羽無支柱石炭採掘方法。 2. The method according to claim 1, wherein the mining order of the short face (1) is alternated between the forward type and the backward type, and the excavation order of the tunnel (3) is always the forward type. Zero emission short faceless pillarless coal mining method.
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