CN109667584A - A kind of phosphorus ore abundant little faults location recovery method - Google Patents
A kind of phosphorus ore abundant little faults location recovery method Download PDFInfo
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- CN109667584A CN109667584A CN201811604400.8A CN201811604400A CN109667584A CN 109667584 A CN109667584 A CN 109667584A CN 201811604400 A CN201811604400 A CN 201811604400A CN 109667584 A CN109667584 A CN 109667584A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 239000011574 phosphorus Substances 0.000 title claims abstract description 15
- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 15
- 238000011084 recovery Methods 0.000 title claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims abstract description 20
- 238000005520 cutting process Methods 0.000 claims description 12
- 235000007164 Oryza sativa Nutrition 0.000 claims description 4
- 235000009566 rice Nutrition 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims 1
- 238000003325 tomography Methods 0.000 abstract description 14
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 12
- 239000011707 mineral Substances 0.000 abstract description 12
- 238000005065 mining Methods 0.000 abstract description 10
- 238000000605 extraction Methods 0.000 abstract description 5
- 238000007796 conventional method Methods 0.000 abstract 1
- 241000209094 Oryza Species 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007619 statistical method Methods 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000009430 construction management Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Remote Sensing (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The present invention provides a kind of phosphorus ore abundant little faults location recovery method, includes the following steps: in phosphorus ore recovery process, continues to tunnel 10-12 meters forward for middle section gallery after craven fault is met in middle section heading, passes through craven fault；Drop shaft is beaten until seeing mine with 40-50 degree angle upwards after 10-12 meters of middle section heading；Drop shaft is shown in after mine centered on drop shaft, sets up main scraper in drop shaft mouth and cuts back production to the two sides driving road Zhu Pa arrangement.Tunnelling meet tomography after to it is preceding driving 10 meters after flip drop shaft to mine is seen, compared to conventional method, reduce the amount of tunnelling, shorten mineral building mining period.Mineral building span is reduced to 5 meters by 6-8 meters, effectively increases the crushed zone rate of extraction, reduces mineral building span, improves the safety of mining.Mineral building span and pillar dimension are reduced, although pillar dimension is reduced, the ore pillar quantity stayed and set is increased, improves mining safety.
Description
Technical field
The present invention relates to a kind of phosphorus ore recovery methods, and in particular to the recovery method in abundant little faults stage belongs to mining industry
Field.
The prior art
The research method of phosphorus ore exploitation interrupting layer generally comprises two kinds of detection and prediction, but each method always has one
Fixed limitation can only solve the problems, such as in a certain respect.Past Detection Techniques fall behind, and ineffective, people knock out the work of prediction
With；With the raising of Detection Techniques, Effect on Detecting is obvious, and the effect of prediction is gradually ignored, actually detects and predicts not
Contradiction has the special role of oneself, cannot substitute mutually, but can complement each other.
The influence that craven fault exploits phosphorus ore is as follows:
Complicated Mining technology condition: since the presence of tomography prevents some tunnels from directly opening, in order to excessively disconnected
Layer finds the disconnected ore bed lost and also needs to dig tunnel more, and the tomography especially in getting working face keeps roof control complicated
Change, while also affecting the fully-mechanized mining to ore.
It destroys ore reserve: when a certain location craven fault is more, suitable stope can not be irised out, the location
Ore reserve can not just exploit, shorten mine service-life.
Increase the frequency of accident generation: the location of abundant little faults is easy to happen safety accident, as being easy at the top of tunnel
Inbreak, shear-zone is nearby also easy to happen water drenching, dripping phenomenon, or even water inrush accident occurs, in the two sides or rock stratum of shear-zone
Distortion turnover area top board structure is unstable, Yi Fasheng roof fall side falling accident.
Therefore, in order to guarantee the smooth production of mine, unnecessary safety accident is reduced, production cost is reduced, improves warp
Ji benefit, it is necessary to underground craven fault be carried out in time and systematic research, its hosting pattern is found out and produced with accurate instruction.
Yichang Prefecture's phosphorus ore is typical marine deposit type mineral deposit, because of tectonic movement, forms the structures such as tomography and fold
It makes, structural belt top board structure is poor, fault belt is developed, and secondary fault is more, and coverage is big, causes structural belt development layout difficult
Degree is big, and the developing supporting of big cross section trackless is costly, and construction management difficulty is big, and great security risk often results in tunnel and scraps, structure
Back production, waste of resource can not be continued by making band.
Under current technical status design pillar dimension be not less than 4 meters × 4 meters, 6-8 meters of mineral building span, this method by mineral building across
Degree is contracted to 5 meters, and pillar dimension is reduced to 3 meters × 3 meters, and ore pillar suitably increases, and by calculating, can theoretically increase the rate of extraction, mention
Mine grade is risen from, the rate of dilution is reduced, increases mining safety coefficient.
Current method mostly uses after tomography is met in heading loses top plate or bottom plate beats drift, is with 10 meters of turn-offs
Example, need to tunnel 67 meters of drift, significantly increase accident occurrence frequency.
Current main analysis method is divided into three classes: first is that geological analysis.What this method was mainly disclosed using drilling
Tomography data, the comprehensive geology mechanics origin cause of formation study stratigraphic rules.Second is that geophysical prospecting method: passing through 3-D seismics and electromagnetic prospecting
Detect stratum, which is feasible to large and medium-sized tomography, but in terms of detecting craven fault, at present there are still some technologies and
Economically the problem of.Third is that statistical analysis method: the method was risen in recent years, it attempts by existing craven fault data
Statistical analysis is found out its rule, and then is predicted the craven fault and its extent of the destruction in exploiting field.
Summary of the invention
A kind of phosphorus ore abundant little faults location recovery method, includes the following steps:
(1) in phosphorus ore recovery process, 10-12 is tunneled into forward in gallery continuation in middle section after craven fault is met in middle section heading
Rice passes through craven fault；
(2) drop shaft is beaten until seeing mine with 40-50 degree angle upwards after middle section heading 10-12 meters；
(3) drop shaft is shown in after mine centered on drop shaft, sets up main scraper in drop shaft mouth and cuts back to the two sides driving road Zhu Pa arrangement
It adopts.
Drop shaft driving is shown in after mine using split two cuttings in north and south or thing as the road Zhu Pa, main rake in the step (3)
Road, which is tunneled to ore, starts thinning rear stopping driving, is spaced 6-8 meters in the road Zhu Pa and opens up two turns of cuttings in parallel, cuts to tunnel and arrive
Start back production behind position.
Back production span is 4-5 meters in the step (3), and ore pillar Size of pillar is 3 meters × 3 meters after back production, at interval of 3 meters
5 meters of digging adopts nest and carries out being trimmed to 3 meters × 3 meters of pillar dimension satisfaction to ore pillar to after punching with adjacent cutting.
In the present invention tunnelling meet tomography after to it is preceding driving 10 meters after flip drop shaft to mine is seen, compared to tradition side
Method reduces the amount of tunnelling, shortens mineral building mining period,
Mineral building span is reduced to 5 meters by 6-8 meters, effectively increases the crushed zone rate of extraction, reduces mineral building span.Reduce mineral building across
Degree and pillar dimension increase the ore pillar quantity stayed and set, improve mining safety although pillar dimension is reduced.
Detailed description of the invention
Fig. 1 is digging laneway layout drawing, wherein 1. craven faults, 2. back production sections, 3. cut length, 4. drop shafts, 5. lower flats
Lane.
Fig. 2 is that layout drawing is cut in back production, wherein 4. drop shafts, 6. 2 turns of cut length, 7. roads Zhu Pa.
Fig. 3 is that back production terminates ore pillar and stay to set figure.
Specific embodiment
Embodiment 1
Technical solution of the present invention according to heading meet tomography → gallery continue to tunnel forward 10 meters → flipped with 45 degree of angles
Drop shaft → back production mature fault area ore (content for being detailed in attached drawing 1-3).
1, gallery is continued after tomography is met in middle section heading to tunnel 10 meters forward, passes through tomography.
2, drop shaft is beaten until seeing mine with 45 degree of angles upwards after 10 meters of heading.
3, drop shaft, which is shown in after mine centered on drop shaft, arranges cutting back production to both sides, sets up main scraper in drop shaft mouth and to two sides
The road Zhu Pa is tunneled, parameter of stope does appropriate optimization, and mineral building span generally takes 6-8 meters under current production technique, this does it excellent
Change, span is contracted to 5 meters, pillar dimension is reduced into 3 meters × 3 meters by current 4 meters × 4 meters, and does suitably to ore pillar quantity
Increase.
Drop shaft driving is shown in after mine that in split two cuttings in drop shaft north and south or thing, Zhu Pa is tunneled in road to ore as the road Zhu Pa
Stop driving after the reasons such as thinning, 6-8 meters are spaced in the road Zhu Pa and opens up two turns of cuttings in parallel, cutting driving starts back afterwards in place
It adopts.
Back production span is contracted to 5 meters by original 6-8 rice, and ore pillar Size of pillar is reduced to 3 meters × 3 meters, often by 4 meters × 4 meters
It is spaced 3 meters and digs 5 meters and adopt nest and be trimmed to pillar dimension to ore pillar to after punching with adjacent cutting and meet 3 meters × 3 meters.
By taking the mining industry Su Jiapo phosphorus ore+230 that sets a prairie fire interrupts south as an example, mature fault is met in 230 Nan Ping lane tunneling processes, is broken
Away from 11.30 meters, 84.62 meters of drift of driving is needed if tunneling along the pulse according to original method, but this is met using the program and is broken
Continue to tunnel 10 meters of abandoned working forward after layer, sees mine, the long 13.05 meters of total digging laneways 23.05 of drop shaft with 60 degree of drop shafts of flipping
Rice can start back production tomography top ore, substantially reduce the duration, when back production tomography top ore reduces span, by before
6-8 meters are contracted to 5 meters, improve the rate of extraction, and pillar dimension is contracted to 3 meters × 3 meters increase ore pillar quantity by 4 meters × 4 meters, improves
The safety coefficient of mature fault area ore back production.
Economic and Efficiency Analysis
By taking tomography driving is met in 230 Nan Ping lanes of aforementioned list as an example, 3 meters of drive width, 84.62 meters of Excavation Length is amounted to
57541.6 yuan, using 10 meters of this programme gallery, 6800 yuan of expense, 13.05 meters of drop shaft, amounts to 12397.5 yuan, add up to 19197.5
Member.38344.1 yuan are saved compared with original method.It can be seen that using this programme only tunnelling to seeing that mine can save not less than 66%
Expense is shown in after mine by reducing span, reduces pillar dimension and increase the mine amount that the methods of ore pillar quantity raising rate of extraction produces more
In addition increased benefit calculates.
Claims (3)
1. a kind of phosphorus ore abundant little faults location recovery method, which comprises the steps of:
(1) in phosphorus ore recovery process, 10-12 is tunneled into forward in gallery continuation in middle section after craven fault is met in middle section heading
Rice passes through craven fault；
(2) drop shaft is beaten until seeing mine with 40-50 degree angle upwards after middle section heading 10-12 meters；
(3) drop shaft is shown in after mine centered on drop shaft, sets up main scraper in drop shaft mouth and cuts back to the two sides driving road Zhu Pa arrangement
It adopts.
2. phosphorus ore abundant little faults according to claim 1 location recovery method, which is characterized in that drop shaft in step (3)
Driving is shown in after mine that using split two cuttings in north and south or thing as the road Zhu Pa, Zhu Pa, which is tunneled in road to ore, starts thinning rear stopping pick
Into 6-8 meters of interval opens up two turns of cuttings in parallel in the road Zhu Pa, and cutting driving starts back production afterwards in place.
3. phosphorus ore abundant little faults according to claim 1 location recovery method, which is characterized in that back production in step (3)
Span is 4-5 meters, and ore pillar Size of pillar is 3 meters × 3 meters after back production, digs 5 meters at interval of 3 meters and adopts nest to after punching with adjacent cutting
Ore pillar is carried out to be trimmed to 3 meters × 3 meters of pillar dimension satisfaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811604400.8A CN109667584A (en) | 2018-12-26 | 2018-12-26 | A kind of phosphorus ore abundant little faults location recovery method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811604400.8A CN109667584A (en) | 2018-12-26 | 2018-12-26 | A kind of phosphorus ore abundant little faults location recovery method |
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| CN109667584A true CN109667584A (en) | 2019-04-23 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1458390A (en) * | 2003-05-30 | 2003-11-26 | 贵州开磷（集团）有限责任公司 | Roof bolt protection and sectioned empty field method for phosphorate rock mining |
| CN102251773A (en) * | 2011-06-22 | 2011-11-23 | 大冶有色金属股份有限公司 | Route type upward horizontal layered filling mining method suitable for extremely complex ore body mining |
| CN102322263A (en) * | 2011-06-15 | 2012-01-18 | 西安建筑科技大学 | Roof cutting and pillar dilapidation method in goaf |
| CN103362510A (en) * | 2013-08-01 | 2013-10-23 | 广西大学 | Sublevel-drilling bench-combination ore-removal sublevel-room mining method |
| CN103711489A (en) * | 2013-12-12 | 2014-04-09 | 湖南华洋铜业股份有限公司 | Mining method of basin-shaped ore block in low vein |
| CN104179505A (en) * | 2014-02-12 | 2014-12-03 | 云南磷化集团有限公司 | Phosphorus ore underground mining method |
-
2018
- 2018-12-26 CN CN201811604400.8A patent/CN109667584A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1458390A (en) * | 2003-05-30 | 2003-11-26 | 贵州开磷（集团）有限责任公司 | Roof bolt protection and sectioned empty field method for phosphorate rock mining |
| CN102322263A (en) * | 2011-06-15 | 2012-01-18 | 西安建筑科技大学 | Roof cutting and pillar dilapidation method in goaf |
| CN102251773A (en) * | 2011-06-22 | 2011-11-23 | 大冶有色金属股份有限公司 | Route type upward horizontal layered filling mining method suitable for extremely complex ore body mining |
| CN103362510A (en) * | 2013-08-01 | 2013-10-23 | 广西大学 | Sublevel-drilling bench-combination ore-removal sublevel-room mining method |
| CN103711489A (en) * | 2013-12-12 | 2014-04-09 | 湖南华洋铜业股份有限公司 | Mining method of basin-shaped ore block in low vein |
| CN104179505A (en) * | 2014-02-12 | 2014-12-03 | 云南磷化集团有限公司 | Phosphorus ore underground mining method |
| CN104179505B (en) * | 2014-02-12 | 2016-01-20 | 云南磷化集团有限公司 | A kind of underground mining method of phosphorus ore |
Non-Patent Citations (1)
| Title |
|---|
| 付国彬等: "《非煤矿床地下开采》", 31 March 1995, 煤炭工业出版社 * |
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Application publication date: 20190423 |