CN103790590A - Technology for preventing and controlling underground floods in transitional period from surface mine to underground mine - Google Patents
Technology for preventing and controlling underground floods in transitional period from surface mine to underground mine Download PDFInfo
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- CN103790590A CN103790590A CN201410027231.1A CN201410027231A CN103790590A CN 103790590 A CN103790590 A CN 103790590A CN 201410027231 A CN201410027231 A CN 201410027231A CN 103790590 A CN103790590 A CN 103790590A
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- 238000005516 engineering process Methods 0.000 title abstract description 7
- 238000006424 Flood reaction Methods 0.000 title abstract 3
- 230000007704 transition Effects 0.000 claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 claims abstract description 40
- 238000005065 mining Methods 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 230000018109 developmental process Effects 0.000 claims description 16
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 14
- 239000011707 mineral Substances 0.000 claims description 14
- 230000002265 prevention Effects 0.000 claims description 11
- 238000003860 storage Methods 0.000 claims description 4
- 230000009466 transformation Effects 0.000 claims description 4
- 230000033772 system development Effects 0.000 claims description 2
- 238000000605 extraction Methods 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 5
- 239000011435 rock Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000005442 atmospheric precipitation Substances 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
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Abstract
The invention discloses a technology for preventing and controlling underground floods in the transitional period from a surface mine to an underground mine. The mining stage is divided into a surface mining stage (1), a transition stage (2) from surface to underground and an underground mining stage (3), wherein the transition stage (2) from surface to underground is divided into a linking production middle section (4) and an emergency middle section (5); the interior of the emergency middle section (5) is uniformly divided into rooms (13) and jambs (14); ore bodies on the lower layers of the rooms (13) are firstly extracted; upward drainage wells (6) are excavated in the rooms (13) to communicate with the linking production middle section (4); after extraction of a plurality of rooms (13) in the emergency middle section (5) is completed, places of underground rainwater in the water inrush period are formed; when rainstorm seasons come, rainwater floods into the rooms (13) of the emergency middle section (5), flows into a main sump via a drainage well (12) and then is drained to safe sections of surfaces via a water pump, thus solving the problem of insufficient underground preventing and draining capabilities in the transitional period from the surface mine to the underground mine in rainstorm seasons and providing guarantees for safe transition from the surface mine to the underground mine.
Description
Technical field
The present invention relates to transition from open-pit underground mining technology, be specifically related to the safety guarantee technology of the interior underground mining flood improvement of transitional period of transition from open-pit underground mining.Can extensive use in the non-coal solid mine transition from open-pit underground minings such as black, coloured, gold.
Background technology
Transition from open-pit underground mine is in order to maintain mine smooth transition within the transitional period, and most mines adopt combined surface and underground mining.Down-hole adopts Caving Method with Large Space exploitation can cause surface subsidence directly and open-air pit connects, the open-air pit of depression forms huge catchment area, in heavy rain season, a large amount of rainwater flow into underground mining stope via the roadway communicating with open-air pit and bed course space, lead to the well accident of flooding, transitional period flood prevention is a very important problem.
" discussion of transition from open-pit underground mining mine flood control and water drain " that the 3rd phase of " metallurgical mine design and construction " May in 1997 delivers, what delivered " technique of preparing net " on August 16th, 2008 " ventilates during transition from open-pit underground mining, cold-proof and flood control " and " after transition from open-pit underground mining, atmospheric precipitation disaster prevents technical research " article of delivering of " energy technology and management " the 5th phase in 2011, all emphasize the importance of transition from open-pit underground mine transitional period flood control and water drain, and mention the flood control and water drain measure that take in some mines, as: the outer excavation of boundary cut Great Gulch in the open, surface water beyond outdoor boundary and surface rock changing of the relative positions boundary line is drawn, on the security platform in hole, establish the pumping plant that dams in the open, the charge for remittance in open-air pit is displaced into beyond open-air pit and changing of the relative positions boundary, in suitable tunnel, down-hole (developing of general using next stage and development heading), the water dam of device with regulation gate valve, the lower water pump in hole should be arranged in the top bench that is easy to catchment as far as possible, etc.But lead off at heavy rain rainwater in season instantaneous time, the anti-drainage measure in earth's surface is difficult to stop, sump volume, the drainage plant ability of down-hole are also limited, rainwater cannot be stored or discharge earth's surface, flood that well accident is more difficult to be avoided.
Summary of the invention
Object of the present invention is exactly for the above-mentioned defect existing in prior art, and provides one to be suitable for transition from open-pit underground mine transitional period down-hole flood Prevention Technique, and this technology can realize the underground transitional safe working of transition from open-pit.
For realizing above-mentioned purpose of the present invention, transition from open-pit underground mine of the present invention transitional period down-hole flood Prevention Technique realizes by following scheme:
1) be divided into strip mining transformation stage, the underground transition stage of transition from open-pit, underground mining stage the mining stage.
Underground described transition from open-pit transition stage is further subdivided into and is connected production stage casing, emergent stage casing, and emergent stage casing is positioned at the bottom that is connected production stage casing; When mining phase enters latter stage, start to build underground developing system to being connected production stage casing in the open, the system of the mining phase that goes underground completely can complete in linking stages manufacturing process.Described linking production stage casing connects by being connected stage casing development drift and main shaft; Be connected the side lower part construction accessory system of production stage casing near main shaft, be connected stage casing development drift and connect by blind inclined shaft or perpendicular blind shaft, emergent stage casing development drift and the emergent stage casing of accessory system.
2) in emergent stage casing, evenly divide mineral building and ore pillar according to 14-16m, the high ore body of the first rooming 19-21m of lower floor, ore pillar wouldn't be exploited.
3) in mineral building, dig upwards drainage sump and be connected production stage casing and link up, after in emergent stage casing, multiple mineral building back production finish, this stage casing has formed the storage house of down-hole rainwater during gushing water, in the development drift of the emergent stage casing of accessory system, installs airtight waterproof door.
4), when heavy rain is interim season, rainwater pours in linking production stage casing through connecting channel, then flows into emergent stage casing through drainage sump; After linking production stage casing back production finishes, underground mining developing system also completes substantially, now rainwater in emergent stage casing can be flowed into the main sump that divide into by drainage sump, underground mining stage development drift by amount, then drains into safe location, earth's surface through water pump.
The height of the described underground transition stage of transition from open-pit is advisable with 100m～120m, is connected the height in production stage casing in 60m～80m scope.
The size in the emergent stage casing in the underground transition stage of described transition from open-pit is take 40m as good, and mineral building, ore pillar width 15m are good, and rooming lower floor ore body height is 20m.
Transition from open-pit underground mine of the present invention transitional period down-hole flood Prevention Technique has following good effect by above technical scheme:
1) dead zone forming after ore body back production in emergent stage casing as gushing water during the storage house of water burst, this volume is far longer than shaft sump volume, for underground mining provides safety guarantee;
2) in the underground transitional period of transition from open-pit, underground mining method choice is strengthened, and without considering flood impact, and abandons the Caving Method with Large Space that production capacity is larger.
Accompanying drawing explanation
Fig. 1 is transition from open-pit underground mine of the present invention transitional period down-hole flood Prevention Technique schematic diagram.
In figure, be labeled as:
1-strip mining transformation stage; The underground transition stage of 2-transition from open-pit; 3-underground mining stage; 4-linking production stage casing; 5-emergent stage casing; 6-drainage sump; 7-rock drilling lane/moat ditch; 8-rock drilling lane; 9-ore removal lane; 10-water door; 11-blind inclined shaft; 12-drainage sump; 13-mineral building; 14-ore pillar; 15-linking stage casing development drift; 16-emergent stage casing development drift; 17-underground mining stage development drift.
The specific embodiment
For further describing the present invention, below in conjunction with accompanying drawing, transition from open-pit underground mine of the present invention transitional period down-hole flood Prevention Technique is described in further detail.
The schematic diagram of the transition from open-pit underground mine transitional period down-hole flood Prevention Technique shown in Fig. 1 finds out, transition from open-pit underground mine is divided into three phases by the present invention: strip mining transformation stage 1, the underground transition stage 2 of transition from open-pit, underground mining stage 3.Turn underground transition stage in the open and be divided into again linking production stage casing 4 and emergent stage casing 5, emergent stage casing 5 is positioned at the bottom that is connected production stage casing 4.Emergent stage casing 5 is highly 40m, and being connected production stage casing 4 is highly 60m～80m.
Mining phase 1 closes before hole in the open, start to build Underground Mining System to being connected production stage casing 4, being connected the side lower part construction accessory system of production stage casing 4 near main shaft, be connected stage casing development drift 15 and connect with emergent stage casing 5 by the blind inclined shaft 11 of accessory system, emergent stage casing development drift 16.
In emergent stage casing 5, evenly divide mineral building 13 and ore pillar 14 according to 15m, first in the higher slice rock drilling lane of mineral building 13, correct position is dug drainage sump 6 and is connected production stage casing 4 and links up, then the compensation space while digging cutting well and cutting lane as back production in the end of mineral building 13, on the interior Drilling in rock drilling lane 7 to fanhole(s) back production lower floor ore body, adopt lower ore body and transport through the ore removal lane 9 that is positioned at mineral building 13, ore pillar 14 junctions, bottom, ore pillar 14 wouldn't be exploited.
After the ore body back production of the emergent stage casing 5 interior lower floor of interior all mineral buildings 13 finishes, this stage casing has formed the storage house of down-hole rainwater during gushing water, installs airtight waterproof door 10 at the correct position of the emergent stage casing of accessory system development drift 16.Interim season when heavy rain, rainwater pours in linking production stage casing 4 through connecting channel, then flows into emergent stage casings through drainage sump 6.After linking production stage casing 4 back production finish, underground mining developing system also completes substantially, now rainwater in emergent stage casing can be flowed into the main sump of dividing into by drainage sump 12, underground mining stage development drift 17 by amount, then drain into safe location, earth's surface through water pump.
Claims (3)
1. a transition from open-pit underground mine transitional period down-hole flood Prevention Technique, is divided into strip mining transformation stage (1), the underground transition stage of transition from open-pit (2), underground mining stage (3) by the mining stage, it is characterized in that by the following technical solutions:
1) underground described transition from open-pit transition stage (2) is further subdivided into and is connected production stage casing (4), emergent stage casing (5), emergent stage casing (5) is positioned at the bottom that is connected production stage casing (4); When mining phase (1) enters latter stage, start to build underground developing system to being connected production stage casing (4) in the open, described linking production stage casing (4) connects with main shaft by being connected stage casing development drift (15); Build accessory system at the side lower part that is connected the close main shaft in production stage casing (4), be connected stage casing development drift (15) and connect by blind inclined shaft (11) or perpendicular blind shaft, emergent stage casing development drift (16) and the emergent stage casing (5) of accessory system;
2) in emergent stage casing (5), evenly divide mineral building (13) and ore pillar (14) according to 14-16m, the high ore body of first rooming (13) 19-21m of lower floor, ore pillar (14) wouldn't be exploited;
3) in mineral building (13), dig upwards drainage sump (6) and be connected production stage casing (4) and link up, after in emergent stage casing (5), multiple mineral buildings (13) back production finishes, this stage casing has formed the storage house of down-hole rainwater during gushing water, installs airtight waterproof door (10) in the emergent stage casing of accessory system development drift (16);
4) when heavy rain is interim season, rainwater pours in linking production stage casing (4) through connecting channel, then flows into emergent stage casing (5) through drainage sump (6); After linking production stage casing (4) back production finishes, underground mining developing system also completes substantially, now the interior rainwater in the stage casing of meeting an urgent need (5) can be flowed into the main sump of dividing into by drainage sump (12), underground mining stage development drift (17) by amount, then drain into safe location, earth's surface through water pump.
2. transition from open-pit underground mine as claimed in claim 1 transitional period down-hole flood Prevention Technique, is characterized in that: the height of the underground transition stage of described transition from open-pit (2) is 100m～120m, and the height that is connected production stage casing (4) is 60m～80m.
3. transition from open-pit underground mine as claimed in claim 1 or 2 transitional period down-hole flood Prevention Technique, it is characterized in that: the emergent stage casing (5) in the underground transition stage of described transition from open-pit (2) is of a size of 40m, mineral building (12), ore pillar (13) width 15m, rooming (12) lower floor ore body height is 20m.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410027231.1A CN103790590B (en) | 2014-01-22 | 2014-01-22 | Transitional period down-hole, open air trestle mine flood prevention and controls |
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| CN201410027231.1A CN103790590B (en) | 2014-01-22 | 2014-01-22 | Transitional period down-hole, open air trestle mine flood prevention and controls |
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| CN103790590B CN103790590B (en) | 2015-09-09 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106638891A (en) * | 2017-02-13 | 2017-05-10 | 中钢集团马鞍山矿山研究院有限公司 | Comprehensive water managing method in underground mining stage of open pit into underground mining |
| CN107083984A (en) * | 2017-06-14 | 2017-08-22 | 陕西有色榆林煤业有限公司 | A kind of colliery central water sump whole wind pressure ventilation system and design method |
| CN110206544A (en) * | 2019-05-20 | 2019-09-06 | 中铁十九局集团矿业投资有限公司 | A kind of hole bottom ore body stoping method behind open-pit slope landslide |
| CN110578552A (en) * | 2019-10-16 | 2019-12-17 | 海南矿业股份有限公司 | Connecting structure of mine drainage shaft and drainage roadway |
| CN111852553A (en) * | 2020-07-06 | 2020-10-30 | 紫金矿业集团股份有限公司 | Method for rapidly sinking and trenching open-pit mine with large water inrush quantity |
| CN111852554A (en) * | 2020-07-06 | 2020-10-30 | 紫金矿业集团股份有限公司 | Rapid trenching method for large water inrush quantity pit open-pit mine small-block full-section deep one-time blasting |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638891A (en) * | 2017-02-13 | 2017-05-10 | 中钢集团马鞍山矿山研究院有限公司 | Comprehensive water managing method in underground mining stage of open pit into underground mining |
| CN107083984A (en) * | 2017-06-14 | 2017-08-22 | 陕西有色榆林煤业有限公司 | A kind of colliery central water sump whole wind pressure ventilation system and design method |
| CN110206544A (en) * | 2019-05-20 | 2019-09-06 | 中铁十九局集团矿业投资有限公司 | A kind of hole bottom ore body stoping method behind open-pit slope landslide |
| CN110578552A (en) * | 2019-10-16 | 2019-12-17 | 海南矿业股份有限公司 | Connecting structure of mine drainage shaft and drainage roadway |
| CN111852553A (en) * | 2020-07-06 | 2020-10-30 | 紫金矿业集团股份有限公司 | Method for rapidly sinking and trenching open-pit mine with large water inrush quantity |
| CN111852554A (en) * | 2020-07-06 | 2020-10-30 | 紫金矿业集团股份有限公司 | Rapid trenching method for large water inrush quantity pit open-pit mine small-block full-section deep one-time blasting |
| CN111852554B (en) * | 2020-07-06 | 2021-07-16 | 紫金矿业集团股份有限公司 | Rapid trenching method for large water inrush quantity pit open-pit mine small-block full-section deep one-time blasting |
| CN111852553B (en) * | 2020-07-06 | 2021-08-03 | 紫金矿业集团股份有限公司 | Method for rapidly sinking and trenching open-pit mine with large water inrush quantity |
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