CN107893658B - Big thick ore body stage open stope afterwards filling mining methods in pole under strong ground pressure ring border - Google Patents

Big thick ore body stage open stope afterwards filling mining methods in pole under strong ground pressure ring border Download PDF

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Publication number
CN107893658B
CN107893658B CN201711155800.0A CN201711155800A CN107893658B CN 107893658 B CN107893658 B CN 107893658B CN 201711155800 A CN201711155800 A CN 201711155800A CN 107893658 B CN107893658 B CN 107893658B
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stope
ore
filling
panel
lane
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CN107893658A (en
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刘国强
周育
王鹏
李多勇
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MCC North Dalian Engineering Technology Co Ltd
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MCC North Dalian Engineering Technology Co Ltd
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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
    • E21C41/22Methods of underground mining; Layouts therefor for ores, e.g. mining placers
    • 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

Abstract

The present invention relates to pole big thick ore body stage open stope afterwards filling mining methods under a kind of strong ground pressure ring border, including the following steps: 1) panel arrangement divides panel along orebody trend, and each panel is made of multiple stopes, and there are ore pillars for panel two sides;2) quasi- cutting is adopted, in each mining phase, it is horizontal to be respectively equipped with filling level, rock drilling level and ore removal;3) each stope is bottom-up exploits one by one, and by the way of the exploitation of interval, a stope mining, three stopes adopt quasi- cutting, and packing job is carried out after back production;4) stope filling is after a stope in stope completes ore removal, to stope open stope afterwards filling;5) institute's pillar between ore pillar recycling mine panel, it is preceding to the end of later period mining to use overhand cut and fill stoping centralized recovery.The invention has the advantages that production safety, there is good operating condition and environment, high production efficiency, panel ability is big, and method is simple, adopts that quasi- project amount is small, and the back production period, flexibility is big.

Description

Big thick ore body stage open stope afterwards filling mining methods in pole under strong ground pressure ring border
Technical field
The present invention relates to a kind of recovery method field of mineral, the pole big thick ore body stage under specifically a kind of strong ground pressure ring border Open stope afterwards filling mining methods.
Background technique
With continually developing for domestic mineral resources, shallow-layer mineral deposit and reserves are constantly consumed, and force more and more mines Mountain is transferred to deep orebody exploitation.When deep orebody is exploited, roadway construction cost increases, ore-rock promotes expense and increases, mining Cost increase.In order to reduce mining cost, economic benefit is obtained, mine, which is usually exploited with scale, reduces production cost.Increase Mine capacity increases Stope Parameters, and stope is made to adapt to enlarged production equipment.Stope traditional arrangement mode is rectangle, stope Long axis direction lateral wall exposed area is big, in the environment of press (there is rock to press cruelly) by force tendentiously, stope lateral wall be easy unstability, It collapses, threatens downhole production safety.Therefore, there is an urgent need to the fillings that pole big thick ore body under a kind of pressure ring border suitable for strong ground is exploited Mining methods realize Deep Shaft Mine in China pole big thick ore body safety and high efficiency.
Summary of the invention
The object of the present invention is to provide pole big thick ore body stage open stope afterwards filling mining methods under a kind of strong ground pressure ring border, To solve security hidden trouble of the existing technology, guarantee safety, the high efficiency of back production.
The object of the present invention is achieved like this.
Pole big thick ore body stage open stope afterwards filling mining methods under a kind of strong ground pressure ring border of the invention, it is characterised in that Stope horizontal plane controls stope lateral wall exposed area using square arrangement, including the following steps:
1) panel is arranged
Panel is divided along orebody trend, each panel is made of multiple stopes, perpendicular to orebody trend direction panel two sides There are ore pillar, it is equipped with air return lane in an ore pillar, air inlet and mine chute are equipped in an ore pillar, along orebody trend steering wheel Section does not set curtain wall;
2) quasi- cutting is adopted
In each mining phase, it is respectively equipped with filling level, rock drilling level and ore removal level, three horizontal works from top to bottom Journey utilizes mutually, and the ore removal level is to arrange that ore removal connection roadway, stope intermediate arrangement moat ditch undercut lane in stope two sides, out Mine connection roadway and moat ditch undercut and are connected between lane by ore removal crosscut;The rock drilling is horizontal, is to draw the moat ditch of ore removal level Bottom lane is as rock drilling lane;The filling level is that the moat ditch of ore removal level is undercuted to lane also as filling lane, i.e. stowboard It is undercuted lane using the moat ditch in upper two stages of digging up mine, drilling drift was undercuted lane using the moat ditch in a upper mining stage, was walked along ore body Two panels arranged side by side to direction are a separate ventilation system, and two panels are entered the wind using two sides, the ventilation side of intermediate return air Formula, in stope intermediate arrangement slot raise 8;
3) back production
Stope continuous stoping in panel, each stope is bottom-up to be exploited one by one, using interval exploitation by the way of, slitting band by Sequence back production of one side of panel to the other side, a stope mining, three stopes adopt quasi- cutting, are filled after back production Operation, back production rock drilling be in the rock drilling lane of rock drilling level i.e. the horizontal moat ditch of ore removal undercut lane using under downhole rock drill chisel to fan Shape deep hole digs upper centripetal deep hole using top hammer formula hydraulic gate, and explosion is using segmentation short-delay blasting, the ore that explosion is got off, Mine chute is transported to by ore removal crosscut, ore removal connection roadway by scraper, then is transported to stage transportation roadway through mine chute;
4) stope filling
After a stope in stope completes ore removal, to stope open stope afterwards filling;
5) ore pillar recycles
Institute's pillar between the panel of mine, it is preceding to the end of later period mining to use overhand cut and fill stoping centralized recovery.
The long 215m in each panel, width 150m, high 50m;Each panel is made of 25 stopes, and each stope is long 30m, width 30m, high 50m;There are ore pillar, side is 30m ore pillar for the panel two sides, and the other side is 35m ore pillar.
Top hammer formula hydraulic gate is using 1354 top hammer formula of Simba mining drill jumbo, and aperture Φ 76mm, described is latent Hole rock drill uses Simba M6-ITH down-the-hole drilling trolley, aperture Φ 114mm.
When extracted ore is greater than the bulk of 900mm, using underground hydraulic pressure rubble trolley with movable Crushing hammer in stope Carry out second-time breakage.
The stope filling be from upper two dig up mine the stages moat ditch undercut lane hanging outsourcing filter cloth plastic ripple let out Water pipe constructs filling sluicing barricade close the goaf in ore removal crosscut, builds 500mm again before each barricade of ore removal crosscut The sedimentation basin of~600mm high;Filling slurry is sent into this mining stage by undercut lane, slot raise of the moat ditch in upper two stages of digging up mine Stope, fill 4 ~ 6 times, wherein top tight filling 1 ~ 3 time.
The stope filling is the vertical filling material distribution in goaf are as follows: bottom 5m ~ 7m thickness and thick two layers of the need of top 1m ~ 2m The high-intensitive cemented filling material that set strength is 6MPa ~ 10MPa proportion is filled, remaining intermediate 41m ~ 44m thickness position filling is solidifying Tenacity is the low-intensity cemented filling material or tailings of 2MPa ~ 4MPa proportion.
Advantages of the present invention:
1) it is exploited one by one since each stope of the present invention is bottom-up, by the way of the exploitation of interval, stope mining, three A stope adopts quasi- cutting;It adopts and cuts than low, stope lateral wall exposed area is small, production capacity is big;It can effectively safeguard stope lateral wall And top plate, that reduces lateral wall and top plate moves and prevents a large amount of inbreaks;Earth's surface construction of structures is protected, earth's surface has been efficiently controlled and has collapsed It falls into;
2) production safety, there is good operating condition and an environment, high production efficiency, and panel ability is big;
3) the method for the present invention is simple, adopts that quasi- project amount is small, and the back production time is short, and flexibility is big, during back production stope, greatly Amount ore persists in stope, and later period concentrating mining, persisting the ore in stope is to play part supporting role to country rock, is had Conducive to underground pressure management;
4) production capacity is big, high-efficient, and mining cost is low.
Detailed description of the invention
Fig. 1 is the panel of pole big thick ore body stage open stope afterwards filling mining methods under a kind of strong ground pressure ring border of the invention Arrangement schematic diagram.
Fig. 2 is the A-A cross-sectional view of Fig. 1 of the present invention.
Fig. 3 is the B-B cross-sectional view of Fig. 1 of the present invention.
Fig. 4 is mining sequence schematic diagram of the invention.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
As shown in Figure 1-Figure 3, pole big thick ore body stage open stope afterwards filling is dug up mine under a kind of strong ground pressure ring border of the invention Method, it is characterised in that stope horizontal plane controls stope lateral wall exposed area using square arrangement, including the following steps:
1) panel is arranged
Panel is divided along orebody trend, each panel is made of multiple stopes 14, the long 215m in each panel, width 150m, height 50m;Each panel is made of 25 stopes, and each stope 14 is 30m long, width 30m, high 50m;Perpendicular to orebody trend direction, disk Area two sides are there are ore pillar 14, and one there are 30m ore pillars 15, and air return lane 4 is equipped in 30m ore pillar 15;There are 35m ore pillars for another 15, it is equipped with air inlet 3 and mine chute 1 in 35m ore pillar 15, does not set curtain wall along orebody trend steering wheel section.
2) quasi- cutting is adopted
In each mining phase, it is respectively equipped with filling level, rock drilling level and ore removal level, three horizontal works from top to bottom Journey utilizes mutually, and the ore removal level is to arrange that ore removal connection roadway 6, stope intermediate arrangement moat ditch undercut lane in 14 two sides of stope 7, ore removal connection roadway 6 and moat ditch undercut and are connected between lane by ore removal crosscut 5;The rock drilling is horizontal, is by ore removal level Moat ditch undercuts lane 7 as rock drilling lane;The filling level is that the moat ditch of ore removal level is undercuted to lane 7 also as filling lane, i.e., Stowboard is undercuted lane 7 using the moat ditch in upper two stages of digging up mine, and drilling drift was undercuted lane using the moat ditch in a upper mining stage 7, two panels arranged side by side along orebody trend direction are a stope ventilation system, and two panels are entered the wind using two sides, and centre is returned The draft type of wind, in stope intermediate arrangement slot raise 8.
3) back production ore removal
14 continuous stoping of stope in panel, each stope 14 is bottom-up to be exploited one by one, by the way of the exploitation of interval, slitting Sequence back production of the band from one side of panel to the other side, 14 back production of stope, three stopes 14 adopt quasi- cutting, after back production i.e. Progress packing job, the protolith or obturation that can make the stope surrounding of operation in panel stable in this way,
Back production rock drilling is that i.e. the horizontal moat ditch of ore removal undercuts lane 7 using under downhole rock drill chisel in the rock drilling lane of rock drilling level To fan-shaped deep hole, the downhole rock drill uses Simba M6-ITH down-the-hole drilling trolley, aperture Φ 114mm;Using top hammer Formula hydraulic gate digs upper centripetal deep hole, and top hammer formula hydraulic gate is using 1354 top hammer formula of Simba mining drill jumbo, hole Diameter Φ 76mm, explosion is using segmentation short-delay blasting, the ore that explosion is got off, and passes through ore removal cross by Sandvik LH625E scraper Lane 5, ore removal connection roadway 6 are transported to mine chute 1;In figure 9 be blasthole, top be it is lower to fan-shaped deep hole, lower part be upper centripetal deep hole;
Explosion is using segmentation short-delay blasting, the ore 13 that explosion is got off, and is got in touch with by scraper by ore removal crosscut 5, ore removal Lane 6 is transported to mine chute 1, then is transported to stage transportation roadway 2 through mine chute 1.
4) stope filling
After a stope in stope completes ore removal, afterwards filling operation is carried out to exploiting field barnyard, is adopted as early as possible to be adjacent It adopts quasi- operation and guarantee is provided in field.
The open stope afterwards filling be from upper two dig up mine the stages moat ditch undercut lane 7 hang outsourcing filter cloth plastics wave Line tapping pipe is constructed filling sluicing barricade close the goaf in ore removal crosscut 5, is built again before each barricade of ore removal crosscut 5 Build 500mm~600mm high sedimentation basin;Filling slurry is sent by undercut lane 7, slot raise 8 of the moat ditch in upper two stages of digging up mine The stope in this mining stage fills 4 ~ 6 times, wherein top tight filling 1 ~ 3 time.
Stope filling is divided into two kinds of filling methods.
Filling method one: filling slurry by upper two dig up mine the stages moat ditch undercut lane 7, slot raise 8 enter this mining The stope in stage, bottom 5m ~ 7m thickness and two layers of top 1m ~ 2m thickness need to fill the height that set strength is 6MPa ~ 10MPa proportion Intensity cemented filling material 10, remaining intermediate 41m ~ 44m thickness position filling set strength are the low-intensity filling of 2MPa ~ 4MPa proportion Material 11.
The vertical filling material distribution in the goaf of filling method two are as follows: bottom 5m ~ 7m thickness and thick two layers of the needs of top 1m ~ 2m fill Fill out the high-intensitive cemented filling material 10 that set strength is 6MPa ~ 10MPa proportion, remaining intermediate 41m ~ 44m thickness position tailings 12。
5) ore pillar recycles
Institute's pillar 15 between the panel of mine, it is preceding to the end of later period mining to use overhand cut and fill stoping centralized recovery.
When extracted ore 13 is greater than the bulk of 900mm, using underground hydraulic pressure rubble trolley with movable Crushing in stope Hammer carries out second-time breakage.
Fig. 4 gives mining sequence schematic diagram of the present invention.As can be seen from Figure 4 the not mutual shadow of adjacent disc section back production It rings, when Panel stoping to adjacent panel stope, filled maintenance terminates the adjacent stope in adjacent panel, along orebody trend direction Curtain wall is not set between panel;The stope surrounding of operation in panel is stable protolith or obturation;It can effectively safeguard and adopt Field lateral wall and top plate, reduction lateral wall and top plate move and prevent a large amount of inbreaks;Earth's surface construction of structures is protected, is efficiently controlled Surface subsidence.

Claims (6)

1. pole big thick ore body stage open stope afterwards filling mining methods under a kind of strong ground pressure ring border, it is characterised in that stope horizontal plane Stope lateral wall exposed area is controlled using square arrangement, including the following steps:
1) panel is arranged
Divide panel along orebody trend, each panel is made of multiple stopes, perpendicular to orebody trend direction panel two sides there are Ore pillar, an ore pillar is interior to be equipped with air return lane, air inlet and mine chute is equipped in an ore pillar, along orebody trend steering wheel section Do not set curtain wall;
2) quasi- cutting is adopted
In each mining phase, it is mutual that it is respectively equipped with filling level, rock drilling level and ore removal level, three horizontal engineerings from top to bottom It mutually utilizes, the ore removal level is to arrange that ore removal connection roadway, stope intermediate arrangement moat ditch undercut lane in stope two sides, ore removal connection Network lane and moat ditch undercut and are connected between lane by ore removal crosscut;The rock drilling is horizontal, is lane that the moat ditch of ore removal level undercuts As rock drilling lane;The filling level is that the moat ditch of ore removal level is undercuted to lane also as filling lane, i.e. stowboard utilizes The moat ditch in upper two mining stages undercuts lane, and drilling drift was undercuted lane using the moat ditch in a upper mining stage, along orebody trend side It is a separate ventilation system to two panels arranged side by side, two panels are entered the wind using two sides, the draft type of intermediate return air, Stope intermediate arrangement slot raise 8;
3) back production
Stope continuous stoping in panel, each stope is bottom-up to be exploited one by one, and by the way of the exploitation of interval, slitting band is by panel Sequence back production of one side to the other side, a stope mining, three stopes adopt quasi- cutting, and filling work is carried out after back production Industry, back production rock drilling be in the rock drilling lane of rock drilling level i.e. the horizontal moat ditch of ore removal undercut lane using under downhole rock drill chisel to sector Deep hole digs upper centripetal deep hole using top hammer formula hydraulic gate, and explosion is using segmentation short-delay blasting, the ore that explosion is got off, by Scraper is transported to mine chute by ore removal crosscut, ore removal connection roadway, then is transported to stage transportation roadway through mine chute;
4) stope filling
After a stope in stope completes ore removal, to stope open stope afterwards filling;
5) ore pillar recycles
Institute's pillar between the panel of mine, it is preceding to the end of later period mining to use overhand cut and fill stoping centralized recovery.
2. big thick ore body stage open stope afterwards filling mining methods in pole under strong ground pressure ring according to claim 1 border, special Sign is the long 215m in each panel, width 150m, high 50m;Each panel is made of 25 stopes, the long 30m of each stope, Wide 30m, high 50m;There are ore pillar, side is 30m ore pillar for the panel two sides, and the other side is 35m ore pillar.
3. big thick ore body stage open stope afterwards filling mining methods in pole under strong ground pressure ring according to claim 1 border, special Sign is top hammer formula hydraulic gate using 1354 top hammer formula of Simba mining drill jumbo, aperture Φ 76mm, the down-the-hole Rock drill uses Simba M6-ITH down-the-hole drilling trolley, aperture Φ 114mm.
4. big thick ore body stage open stope afterwards filling mining methods in pole under strong ground pressure ring according to claim 1 border, special Sign be when extracted ore be greater than 900mm bulk, in stope using underground hydraulic pressure rubble trolley with movable Crushing hammer into shape into Row second-time breakage.
5. big thick ore body stage open stope afterwards filling mining methods in pole under strong ground pressure ring according to claim 1 border, special Sign is that the stope filling is that dig up mine from upper two the undercut plastic ripple of lane hanging outsourcing filter cloth of moat ditch in stages sluices Pipe, constructed in ore removal crosscut filling sluicing barricade close the goaf, built again before each barricade of ore removal crosscut 500mm~ The sedimentation basin of 600mm high;Filling slurry is sent into this mining stage by undercut lane, slot raise of the moat ditch in upper two stages of digging up mine Stope fills 4 ~ 6 times, wherein top tight filling 1 ~ 3 time.
6. big thick ore body stage open stope afterwards filling mining methods in pole under strong ground pressure ring according to claim 1 border, special Sign is that the stope filling is the vertical filling material distribution in goaf are as follows: bottom 5m ~ 7m thickness and thick two layers of the needs of top 1m ~ 2m Fill the high-intensitive cemented filling material that set strength is 6MPa ~ 10MPa proportion, remaining intermediate 41m ~ 44m thickness position filling solidification Intensity is the low-intensity cemented filling material or tailings of 2MPa ~ 4MPa proportion.
CN201711155800.0A 2017-11-20 2017-11-20 Big thick ore body stage open stope afterwards filling mining methods in pole under strong ground pressure ring border Active CN107893658B (en)

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CN109025996B (en) * 2018-07-24 2019-12-10 周伟永 Underground mine layer-by-layer extrusion and smooth blasting mining method
CN110259449B (en) * 2019-07-16 2020-07-28 太原理工大学 Strip filling mining method for extra-thick coal seam by means of steel mould trolley
CN110656939B (en) * 2019-09-12 2020-10-20 北京科技大学 Large-stage efficient mining method for steeply inclined medium-thickness ore body meeting water argillization surrounding rock
CN111119894B (en) * 2019-12-02 2021-07-13 南华大学 Downward access filling mining method
CN111650119A (en) * 2020-05-09 2020-09-11 北京科技大学 Simple device for determining multiple filling interval time of stope and using method thereof
CN111749697A (en) * 2020-07-03 2020-10-09 矿冶科技集团有限公司 Stope mining-preparation engineering linking method

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CN101105129B (en) * 2007-07-16 2010-05-19 中南大学 Mining environment reconstructed continuous mining afterwards filling mining method
CN102704934B (en) * 2012-06-28 2014-07-09 中钢集团马鞍山矿山研究院有限公司 High-yield and low-cost subsequent filling mining method for underground mine
CN104343453B (en) * 2014-08-29 2016-08-17 武汉科技大学 Thick mineral deposit filling mining method in a kind of low-angle dip
CN105822306B (en) * 2016-03-22 2017-12-29 河北钢铁集团矿业有限公司 Inclined thick gulf is even across the mineral building construction design method of structural system
CN106677780B (en) * 2017-02-21 2018-09-14 中冶北方(大连)工程技术有限公司 Bottom ore removal afterwards filling mining method is cut in a kind of upward and downward stage rock drilling segmentation

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