CN110886612A - Mining method suitable for continuous mining of gently inclined medium-thickness ore body - Google Patents
Mining method suitable for continuous mining of gently inclined medium-thickness ore body Download PDFInfo
- Publication number
- CN110886612A CN110886612A CN201911106918.3A CN201911106918A CN110886612A CN 110886612 A CN110886612 A CN 110886612A CN 201911106918 A CN201911106918 A CN 201911106918A CN 110886612 A CN110886612 A CN 110886612A
- Authority
- CN
- China
- Prior art keywords
- ore
- mining
- ore body
- stoping
- roadway
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005065 mining Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000005553 drilling Methods 0.000 claims abstract description 17
- 239000011435 rock Substances 0.000 claims abstract description 17
- 238000005520 cutting process Methods 0.000 claims abstract description 15
- 238000005422 blasting Methods 0.000 claims abstract description 4
- 230000005641 tunneling Effects 0.000 claims abstract description 3
- 239000012895 dilution Substances 0.000 abstract description 4
- 238000010790 dilution Methods 0.000 abstract description 4
- 239000002184 metal Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
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
- E21C41/22—Methods of underground mining; Layouts therefor for ores, e.g. mining placers
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention discloses a mining method suitable for continuous mining of a gently inclined medium-thickness ore body, which comprises the following steps of: (1) dividing the ore body into mining units with the length of 40-50 m and the width of 8-10 m along the direction of the ore body; (2) firstly, pulling open the whole section of the upper part of the ore body and supporting the whole section of the upper part of the ore body to form a safe operation environment for ore removal of the lower part; (3) tunneling a rock drilling roadway and a cutting roadway of a vertical stope at the lower part of the ore body, and drilling upward sector holes by adopting a rock drilling trolley or a middle hole drilling machine; (4) blasting the thickness of the ore body of the ore falling in one step, and carrying out remote control shoveling and conveying to enter a stope for ore removal; (5) sequentially carrying out stoping on adjacent stoping units, and carrying out cemented filling with the compressive strength not less than 1.0MPa after the stoping; (6) and (5) stoping the next stoping unit. The method has the advantages of low dilution rate; the ore body is not reserved with ore pillars for two times of continuous stoping, and the loss rate is low; the mining engineering only excavates two roadways and cuts the roadway along the stope direction, and the mining and cutting engineering volume is little.
Description
Technical Field
The invention relates to the field of underground mining of metal ore deposits, in particular to a novel mining method for realizing continuous mining by combining ore body attitude.
Background
The underground mining of metal ore deposit is divided into a plurality of types according to different occurrence conditions, occurrence states, ore rock strength, ore rock stability conditions, whether the earth surface is allowed to fall or not and the like of ore body, the underground mining of metal ore deposit is mainly divided into three types of caving methods, open stope methods and filling methods according to the open roof condition, the subdivision mining method is more than dozens of types, and the selection of the mining method is mainly based on safety and economy, namely, the ore is safely mined with the least investment.
With the rapid development of economy, the living standard of people is improved, the requirement on environmental protection is improved, the earth surface, particularly a region with developed economy, is not allowed to collapse, the proportion occupied by a caving mining method is gradually reduced, and the requirement on backfill of an underground goaf is also continuously improved. For mining of medium-thickness slowly-inclined ore bodies with more than medium and stable ore rocks, the mining method is suitable at present, such as a room-pillar subsequent filling method, a layered filling method, a segmented open-stope subsequent filling method and the like. The traditional mining method adopted for the medium-thickness slowly-inclined ore body with the ore rock condition being more than medium and stable has the problems of large mining and cutting engineering quantity, large loss rate, high dilution rate and the like.
Disclosure of Invention
The invention aims to solve the technical problem that the traditional mining method adopted for medium-thickness slowly-inclined ore bodies with medium stability and higher ore rock conditions has the defects of large mining and cutting engineering quantity, large loss rate, high dilution rate and the like, and provides a high-efficiency mining method suitable for continuous mining of slowly-inclined medium-thickness ore bodies by combining with modern mining equipment.
The technical scheme of the invention is as follows: a mining method suitable for the continuous mining of a gentle dip medium-thickness ore body comprises the following steps: (1) dividing the ore body into mining units with the length of 40-50 m and the width of 8-10 m along the direction of the ore body; firstly, pulling open the whole section of the upper part of the ore body and supporting the whole section of the upper part of the ore body to form a safe operation environment for ore removal of the lower part; (3) tunneling a rock drilling roadway and a cutting roadway of a vertical stope at the lower part of the ore body, and drilling upward sector holes by adopting a rock drilling trolley or a middle hole drilling machine; (4) blasting the thickness of the ore body of the ore falling in one step, and carrying out remote control shoveling and conveying to enter a stope for ore removal; (5) sequentially carrying out stoping on adjacent stoping units, and carrying out cemented filling with the compressive strength not less than 1.0MPa after the stoping; (6) and (5) stoping the next stoping unit.
The method has the advantages that mining engineering can well control the upper and lower boundaries of the ore body, and the dilution rate is low; the ore body is not reserved with ore pillars for two times of continuous stoping, and the loss rate is low; the modern mining equipment is adopted for ore falling and ore removal, and the ore falling is realized at one time on the thickness of an ore body, so that the efficiency is high; the mining engineering only digs two roadways and cuts the roadway along the stope direction, has no independent ore removal roadway and ore removal access road, and has small mining and cutting engineering quantity. The method is an efficient mining method for the gently inclined medium-thickness ore body above the medium-stable ore rock.
Drawings
FIG. 1 is a schematic view of a moderately strong and up-thick gently sloping ore body of the present invention;
FIG. 2 is a sectional view II-II of FIG. 1;
FIG. 3 is a sectional view III-III of FIG. 1;
in the figure, 1, a vein-following roadway, 2, a vein-penetrating roadway, 3, a bottom rock drilling roadway, 4, a mine descending, 5, an air return roadway, 6, a filling body, 7, a filling/hanging wall cutting connecting roadway and 8, a roof cutting roadway.
Detailed Description
The technical solution of the present invention is clearly and completely described below with reference to the following embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments based on the embodiments in the present invention, without any inventive work, will be apparent to those skilled in the art from the following description.
As shown in fig. 1-3, the moderately firm and thick gently inclined ore body comprises a vein-following roadway 1, a vein-penetrating roadway 2, a bottom rock drilling roadway 3, a mine shaft 4, an air return roadway 5, a filling body 6, a filling/hanging plate cutting connecting roadway 7 and a roof cutting roadway 8. Example 1, the invention is a mining method for continuous mining of a medium-thickness gently inclined ore body with ore rock conditions of more than medium stability, taking the similar ore body stoping of a certain mine in holy as an example:
the thickness of an ore body is 10-18 m, the inclination angle is 10-15 degrees, the width of the ore body is 150-200m, the length is more than 300m, the ore value is 500 yuan/ton, the ground surface is not allowed to subside, and alternative mining methods comprise the following steps: firstly, a house pillar subsequent filling method; secondly, a segmented empty field subsequent filling method; and thirdly, a full roof control continuous mining subsequent filling mining method.
According to the scheme I, a room-pillar subsequent filling method stoping unit is divided into a chamber and a pillar, the chamber is 44m long, the pillar is 6m wide, the chamber is mainly stoped, stoping and cutting projects mainly comprise a stoping and cutting roadway and a stope internal stoping and cutting project, manual shallow holes or drill jumpers are adopted for drilling and blasting, and a scraper is used for ore removal; regular or irregular point columns are left in the chamber, and permanent loss is caused; and (5) carrying out residual ore recovery on the ore pillar. The scheme divides a stoping unit into a chamber and a pillar by a two-section open-stoping subsequent filling method, and a mining preparation project mainly comprises a rock drilling chamber, a ore removal roadway, an ore removal route and the like, and is formed by medium-length hole ore dropping and ore removal by a scraper; and (5) carrying out residual ore recovery on the ore pillar. According to the third scheme (embodiment 1), ore bodies are divided into panels by a full-face top-control continuous mining subsequent filling mining method, ore pillars are reserved among the panels, the panels are divided into stopes with the width of 10m, a main lower ore removal rock drilling roadway and an upper cutting roadway of a mining standard project are adopted, a safety space is created for lower ore removal by full-face side brushing support of the upper stope, continuous stoping is carried out in the panels, and filling is carried out after mining; and (4) stoping the ore pillars according to the same method after stoping in the chamber.
Comparing the main technical economy of the new mining method with the traditional mining method
As can be seen from the above table, the practical application of the invention has obvious advantages in the aspects of production capacity, technical and economic index control and the like compared with the traditional room-column method; compared with a segmented empty-field method, the production capacity is slightly small, and the advantages of technical and economic indexes are obvious; indicating that the method is an advanced mining method.
Claims (1)
1. A mining method suitable for continuous mining of gently inclined medium-thickness ore bodies is characterized by comprising the following steps: it comprises the following steps: (1) dividing the ore body into mining units with the length of 40-50 m and the width of 8-10 m along the direction of the ore body; (2) firstly, pulling open the whole section of the upper part of the ore body and supporting the whole section of the upper part of the ore body to form a safe operation environment for ore removal of the lower part; (3) tunneling a rock drilling roadway and a cutting roadway of a vertical stope at the lower part of the ore body, and drilling upward sector holes by adopting a rock drilling trolley or a middle hole drilling machine; (4) blasting the thickness of the ore body of the ore falling in one step, and carrying out remote control shoveling and conveying to enter a stope for ore removal; (5) sequentially carrying out stoping on adjacent stoping units, and carrying out cemented filling with the compressive strength not less than 1.0MPa after the stoping; (6) and (5) stoping the next stoping unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911106918.3A CN110886612A (en) | 2019-11-13 | 2019-11-13 | Mining method suitable for continuous mining of gently inclined medium-thickness ore body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911106918.3A CN110886612A (en) | 2019-11-13 | 2019-11-13 | Mining method suitable for continuous mining of gently inclined medium-thickness ore body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110886612A true CN110886612A (en) | 2020-03-17 |
Family
ID=69747418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911106918.3A Pending CN110886612A (en) | 2019-11-13 | 2019-11-13 | Mining method suitable for continuous mining of gently inclined medium-thickness ore body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110886612A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087016A (en) * | 2021-12-03 | 2022-02-25 | 武钢资源集团金山店矿业有限公司 | Pre-control supporting method for isolating top column in caving-to-filling mining |
| WO2023197392A1 (en) * | 2022-04-14 | 2023-10-19 | 中钢集团马鞍山矿山研究总院股份有限公司 | Method for increasing roof-contacted filling rate of underground mine end sand discharging stope |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2184850C1 (en) * | 2000-12-08 | 2002-07-10 | Санкт-Петербургский государственный горный институт им. Г.В. Плеханова (Технический университет) | Method of underground mining of thick flat deposits of low-hardness ores |
| CN101725348A (en) * | 2008-10-21 | 2010-06-09 | 招金矿业股份有限公司大尹格庄金矿 | Pre-control roof open stoping spallation subsequent filling mining method |
| CN102155228A (en) * | 2011-02-21 | 2011-08-17 | 中南大学 | Fully-segmented presplitting squeezing primary-blasting mining method |
| CN102562065A (en) * | 2012-01-12 | 2012-07-11 | 北京科技大学 | Sublevel open-stop and delayed filling mining method |
| CN110259451A (en) * | 2019-06-20 | 2019-09-20 | 中南大学 | A kind of efficient mining methods of gently inclined medium thick orebody Pre-control roof |
-
2019
- 2019-11-13 CN CN201911106918.3A patent/CN110886612A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2184850C1 (en) * | 2000-12-08 | 2002-07-10 | Санкт-Петербургский государственный горный институт им. Г.В. Плеханова (Технический университет) | Method of underground mining of thick flat deposits of low-hardness ores |
| CN101725348A (en) * | 2008-10-21 | 2010-06-09 | 招金矿业股份有限公司大尹格庄金矿 | Pre-control roof open stoping spallation subsequent filling mining method |
| CN102155228A (en) * | 2011-02-21 | 2011-08-17 | 中南大学 | Fully-segmented presplitting squeezing primary-blasting mining method |
| CN102562065A (en) * | 2012-01-12 | 2012-07-11 | 北京科技大学 | Sublevel open-stop and delayed filling mining method |
| CN110259451A (en) * | 2019-06-20 | 2019-09-20 | 中南大学 | A kind of efficient mining methods of gently inclined medium thick orebody Pre-control roof |
Non-Patent Citations (1)
| Title |
|---|
| 徐东等: "中深孔采矿法在新城金矿的研究与应用", 《黄金科学技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087016A (en) * | 2021-12-03 | 2022-02-25 | 武钢资源集团金山店矿业有限公司 | Pre-control supporting method for isolating top column in caving-to-filling mining |
| CN114087016B (en) * | 2021-12-03 | 2023-09-26 | 武钢资源集团金山店矿业有限公司 | Caving-to-filling mining isolation top column pre-control supporting method |
| WO2023197392A1 (en) * | 2022-04-14 | 2023-10-19 | 中钢集团马鞍山矿山研究总院股份有限公司 | Method for increasing roof-contacted filling rate of underground mine end sand discharging stope |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108612530B (en) | Mining method for hanging wall surrounding rock crushing inclined medium-thickness ore body | |
| CN101338674B (en) | Non-pillar sublevel caving mining method for direct loading for ore | |
| CN105626071B (en) | Mining method for gently inclined thin ore body | |
| CN110295908B (en) | Mining method for gentle dip medium-thickness ore body in fluctuating sectional roadway | |
| CN103362510B (en) | Sublevel-drilling bench-combination ore-removal sublevel-room mining method | |
| CN104989404A (en) | Diagonal ore-break-down medium-length hole mining method for steeply-inclined thin vein ore body | |
| CN103590831A (en) | Novel mining method of gently-inclined thin and medium thickness ore bodies | |
| CN109707381B (en) | Mining method for filling open stope by upward high layering advanced unloading | |
| CN101368482B (en) | Novel technique of slight-pitch ore body overall mining method | |
| CN101424186A (en) | Method for recovering disc ore on incline ore block | |
| CN104018836A (en) | Divided mining method for inclined medium-thick ore body with unstable false roof | |
| CN110984989B (en) | Mining method of steeply inclined medium-thickness ore body | |
| CN110644996B (en) | Open stope subsequent filling mining method suitable for gently inclined medium-thickness ore body | |
| CN210134930U (en) | Subregion accuse top structure in advance suitable for mining of gentle slope broken deposit | |
| CN105952450A (en) | Novel method for collaboratively exploiting underground double stopes of underground mine | |
| CN107829740A (en) | Mining method of extremely-thin steeply-inclined ore body | |
| CN106640080A (en) | Deep part high-stress environment self-stabilizing arched stope arrangement mining method | |
| CN101725351A (en) | Filling stope pillar recovery mining method | |
| CN110886612A (en) | Mining method suitable for continuous mining of gently inclined medium-thickness ore body | |
| CN103061768A (en) | Diskless region type connection roadway continuous sectional cut-and-filling stoping method shared by chamber and jambs | |
| CN104343453B (en) | Thick mineral deposit filling mining method in a kind of low-angle dip | |
| CN113803071B (en) | Thin ore body mining method based on remote intelligent heading machine | |
| CN103726848A (en) | Mining method applicable to recovery of gentle-inclined/inclined thin ore body | |
| CN103557001A (en) | Low-section-height drift-pillar-free shrinkage-stoping, subsequent-filling and mining method | |
| CN104153782B (en) | Progressive caving mining method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200317 |