CN102966355A - Method for creating internal dumping conditions of strip mine - Google Patents

Method for creating internal dumping conditions of strip mine Download PDF

Info

Publication number
CN102966355A
CN102966355A CN2012105169356A CN201210516935A CN102966355A CN 102966355 A CN102966355 A CN 102966355A CN 2012105169356 A CN2012105169356 A CN 2012105169356A CN 201210516935 A CN201210516935 A CN 201210516935A CN 102966355 A CN102966355 A CN 102966355A
Authority
CN
China
Prior art keywords
stope
exploitation
mining
warning line
interior
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
Application number
CN2012105169356A
Other languages
Chinese (zh)
Inventor
胡军尚
陈海
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Masteel Design & Research Institute Co Ltd
Magang Group Holding Co Ltd
Original Assignee
Masteel Design & Research Institute Co Ltd
Magang Group Holding Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Masteel Design & Research Institute Co Ltd, Magang Group Holding Co Ltd filed Critical Masteel Design & Research Institute Co Ltd
Priority to CN2012105169356A priority Critical patent/CN102966355A/en
Publication of CN102966355A publication Critical patent/CN102966355A/en
Pending legal-status Critical Current

Links

Abstract

The invention discloses a method for creating internal dumping conditions of a strip mine, which is characterized by comprising the steps of adopting an exploitation zone, exploiting in a segmented way, carrying out steep slope mining advancement to create internal dumping conditions, and also comprising the step of sufficiently utilizing the areas of the stope and the blasting warning line as a 'transfer station' to carry out internal dumping. The step of internal dumping is carried out according to the following steps: (1) firstly exploiting stripped rocks, and adopting a footstep separated manner to temporarily stack the rocks on the other part of the rocks which are not exploited temporarily in the range of 300m blasting warning line away from the upper opening of the stope; (2) constantly stretching downwards and advancing lengthwise along the stope, so that the primarily-exploited part reaches the final boundary first, and the rocks on the other part are moved to the mining pit of the primarily-exploited part, wherein a footstep separated manner is adopted for stacking; and (3) continuing to advance lengthwise in the stope to cause the space of the mining pit to be enlarged constantly, and moving the rocks in the range of the blasting warning line into the mining pit gradually. The method has the advantages of not occupying other lands, prolonging the service life of the internal dump, and saving cost.

Description

A kind of method of creating casting condition in the opencut
Technical field
The invention belongs to the mining technical field, relate to the casting technique in the strip mining transformation five large techniques, is a kind of method of creating casting condition in the opencut specifically.The method not only is adapted to the colliery of subregion, segmentation exploitation, also is adapted to other open sand and rock ores.
Background technology
Strip mining transformation is the main method of Mineral Resources in China exploitation, has the advantages that production scale is large, safety is good.Than underground mining a lot of superiority is arranged, but shortcoming also is very obvious, that is exactly in exploitated ore, also will peel off a large amount of rocks.With respect to the waste-rock yard of underground mining, opencast refuse dump floor space is much bigger.
Interior casting refers in the opencast mining process that the barren rock of peeling off is not to dump beyond the stope, and stope is inner in the open but dump.Interior casting technology is suitable for that ore body buries that more shallow, distribution is large, level compose deposit or the inclination angle very slow, adopt opencut, therefore be used widely in the colliery of exploitation in the open.Metalliferous deposit mostly is greatly or high-dipping ore block, and strike length is short, the extension of tilting is large, and the mine of casting technology seldom in therefore adopting.
Casting was general in surface mine adopted adopts following dual mode to realize:
(1) adopts the block mining mode.A plurality of independently ore bodies are arranged in the mineral rights, and apart from each other.Each independent ore body is independent excavating plant during design, carries out block mining, and the excavating plant of opening first after exploitation finishes, can be used as the refuse dump of rear Mining.This mode has just realized interior casting in the mining right scope.For example horse steel gushan iron mine had two excavating plants originally, and aunt mountain stope and Zhong Mountain stope are after stope exploitation in the Zhong Mountain finishes, as the interior refuse dump of aunt mountain stope.
(2) adopt the segmentation mining type.Relatively shallow mineral deposit is grown, buried to orebody trend, the mineral deposit can be divided into several sections along orebody trend during design, exploit first first paragraph from an end, exploitation finishes the hole of adopting of formation, as the interior refuse dump of second segment exploitation, second segment is as the 3rd section interior refuse dump.This mode is applicable to the colliery more, for example: refuse dump, Shenhua Group Bao Rixile Waste Dump inside Open Pit Mine, the interior refuse dump of middle coal dragonization Harbin mining industry Co., Ltd Open-Pit Winning, the interior refuse dump of accurate Ge Er Open-it mine, Ku Mishi open coal mine Internal dump, the Yimin open coal mine refuse dump, north, Yima Waste Dump inside Open Pit Mine in the interior refuse dump of accurate Ge Er Open-it mine, the colliery, Yilan.It is larger that said method is affected by mineral deposit distribution and orebody occurrence, in addition the initial stage of production also to select the interim refuse dump of stope outside, still exist to take a large amount of soils, and on problems such as the mine entironment impact are larger.
Summary of the invention
Purpose of the present invention is exactly in view of the foregoing defects the prior art has, a kind of method of creating casting condition in the opencut is provided, solution metal, nonmetal depdosit mostly are greatly or high-dipping ore block, strike length is short, the extension of tilting is large, distribution is little, can't adopt subregion, segmentation to exploit to realize the difficult problem of interior casting, the method not only is adapted to the colliery of subregion, segmentation exploitation, also is adapted to other open sand and rock ores.
The object of the present invention is achieved like this: a kind of method of creating casting condition in the opencut, it is characterized in that: comprise that adopting subregion, segmentation exploitation, steep wall mining to advance creates interior casting condition, comprise that also the area that takes full advantage of stope itself and blast warning line carries out interior casting step as " terminal ".Take full advantage of open area and the stope blast warning line scope to 300m suitable for reading on the excavating plant, open pit boundary is drawn vertically be divided into two parts, first an exploitation part wherein.Dig main access under the before exploitation part edge, laterally dig pioneer cut, form horizontal initialization face, then work plane vertically advances.Adopt the steep wall mining method in the progradation, can accelerate to exploit first the decrease speed of part, the exploitation part steps to a new level by the side time most after postponing.Create conditions for casting in realizing in time and space.
For example open pit boundary is divided into two parts of thing, exploits first the east and divide, then dig main access, north-south pick pioneer cut first under east margin, form the initialization face in north-south, then work plane westwards advances.Adopt the steep wall mining method in the progradation, can accelerate the decrease speed that the east is divided, postpone stepping to a new level most by the side time in western minute.Create conditions for casting in realizing in time and space.
The area that takes full advantage of stope itself and blast warning line carries out interior casting as " terminal " and carries out according to the following steps:
Exploit the ground peeled off, adopt minute step mode to be deposited on interior another part with temporarily not exploiting of blast warning line scope of stope extrapolation suitable for reading 300m temporarily (1), first.The interior refuse dump structural parameters that described minute step mode stacked for the bench toe of the most next step apart from excavating plant boundary line 20m, shoulder height 10m, safety platform width 16m, 34 ° of bank slopes, 19~21 ° of overall slope angles.
(2), along with stope constantly to downward-extension with vertically advance, first exploitation part at first arrives final mining area, has formed certain space, at this moment begins the resettlement of the ground on another part to the adopting in the hole of first exploitation part, a minute step mode is stacked.The interior refuse dump structural parameters that described minute step mode stacked are the same.
(3), stope continues vertically to advance, and along with the continuous extraction of ore, adopts defect subspaces and constantly enlarges, can be progressively with the resettlement of the ground in the blast warning line scope to adopting in the hole.
Material in the excavating plant blast warning line scope is dimerous by ore and ground, and by exploitation, ore has utilized as product is processed, and the formed hole of adopting of extracted ore and ground can be satisfied the backfill needs of the ground of peeling off fully.Therefore theoretically, any surface mine can be realized Internal dump, and row " time point " is sooner or later different in just implementing, and the length of service length of interior refuse dump is different.Existing interior casting technology all is to implement in middle and later periods of mining, also needs to build a refuse dump early stage, haul distance generally far away, floor space is larger.Row " time point " is late in implementing, and the length of service of interior refuse dump is shorter, the economic benefit of casting in the impact.
Compared with prior art, a kind of advantage of creating the method for casting condition in the opencut of the present invention is: take full advantage of the area of stope itself and blast warning line as " terminal ", do not take other soil, transportation range is near, can arrange in the enforcement early, the length of service of refuse dump in prolonging is saved cost of transportation.
 
Description of drawings
Fig. 1: interior casting operation process figure.
Fig. 2: be the interior casting procedure chart that creates conditions.
Among the figure: 1, east 2, western part 3, stope final mining area line 4, blast warning line 5, refuse dump H 1,The minimum mining elevation in east H 2,Western minimum mining elevation.
The specific embodiment
The below contrasts accompanying drawing, by the description to embodiment, a kind of method of creating casting condition in the opencut of the present invention is described in further detail.
As shown in the figure, the gushan iron mine bed buries more shallow, and the extension of the western wing is larger, and the eastern wing extends relatively shallow; Be semicircular in the horizontal direction, the south is disconnected by rock mass.Therefore, open-air boundary east, the minimum mining elevation in two ends, west of design are different, the minimum mining elevation (H in east 1)-106m, western minimum mining elevation (H 2)-166m.
According to the situation of aunt mountain stope present stage exploitation, if exploit simultaneously in east, two ends, west, the ground of peeling off can not arranged.Therefore stope is adopted the stripping position and be optimized adjustment, utilize the stope east to be about to exploitation to stope final mining area line (3), and the not yet condition by helping that steps to a new level is most held in the stope west, at first the east of Mining (1), the ground of peeling off is discharged into western 2 tops of stope to blast warning line (4) scope temporarily, after stope east (1) exploitation finishes, Mining western (2) again.
After stope east (1) exploitation finishes, form a relatively large hole of adopting in the stope east, can be used as the inner dump of stope western part (2) exploitation.At first will be deposited in the ground of stope western part (2), utilize the developing transport routes of stope inside to be transferred in the hole, stope east (1), carry out again interior refuse dump (5) design and stability study, determine rational casting structural parameters, then western part of Mining (2), the ground of peeling off is stacked to interior refuse dump (5).
The structural parameters of interior refuse dump (5) are: level interval 10m, safety platform width 16m, 34 ° of bank slopes, 19~21 ° of overall slope angles.

Claims (3)

1. method of creating casting condition in the opencut, it is characterized in that: comprise that adopting subregion, segmentation exploitation, steep wall mining to advance creates interior casting condition, comprise that also the area that takes full advantage of stope itself and blast warning line carries out interior casting step as " terminal "; Take full advantage of open area and the stope blast warning line scope to 300m suitable for reading on the excavating plant, open pit boundary is drawn vertically be divided into two parts, first an exploitation part wherein; Dig main access under the before exploitation part edge, laterally dig pioneer cut, form horizontal initialization face, then work plane vertically advances; Adopt the steep wall mining method in the progradation, can accelerate to exploit first the decrease speed of part, the exploitation part steps to a new level by the side time most after postponing; Create conditions for casting in realizing in time and space; The area that takes full advantage of stope itself and blast warning line carries out interior casting as " terminal " and carries out according to the following steps:
Exploit the ground peeled off, adopt minute step mode to be deposited on interior another part with temporarily not exploiting of blast warning line scope of stope extrapolation suitable for reading 300m temporarily (1), first;
(2), along with stope constantly to downward-extension with vertically advance, first exploitation part at first arrives final mining area, has formed certain space, at this moment begins the resettlement of the ground on another part to the adopting in the hole of first exploitation part, a minute step mode is stacked;
(3), stope continues vertically to advance, and along with the continuous extraction of ore, adopts defect subspaces and constantly enlarges, can be progressively with the resettlement of the ground in the blast warning line scope to adopting in the hole.
2. the described a kind of method of creating casting condition in the opencut of claim 1, it is characterized in that: the structural parameters of the interior refuse dump that described minute step mode of step (1) stacked for the bench toe of the most next step apart from excavating plant boundary line 20m, shoulder height 10m, safety platform width 16m, 34 ° of bank slopes, 19~21 ° of overall slope angles.
3. the described a kind of method of creating casting condition in the opencut of claim 1 is characterized in that: the structural parameters of the interior refuse dump that described minute step mode of step (2) stacked are the same.
CN2012105169356A 2012-12-06 2012-12-06 Method for creating internal dumping conditions of strip mine Pending CN102966355A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012105169356A CN102966355A (en) 2012-12-06 2012-12-06 Method for creating internal dumping conditions of strip mine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012105169356A CN102966355A (en) 2012-12-06 2012-12-06 Method for creating internal dumping conditions of strip mine

Publications (1)

Publication Number Publication Date
CN102966355A true CN102966355A (en) 2013-03-13

Family

ID=47796757

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012105169356A Pending CN102966355A (en) 2012-12-06 2012-12-06 Method for creating internal dumping conditions of strip mine

Country Status (1)

Country Link
CN (1) CN102966355A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103174427A (en) * 2013-04-09 2013-06-26 中煤平朔集团有限公司 Method for exploiting downward deepening section of anticlinal part of opencast coal mine
CN103470262A (en) * 2013-09-12 2013-12-25 中国矿业大学 Mining method of nearly horizontal mineral deposit of opencast coal field by casting and internally dumping
CN104806248A (en) * 2015-04-23 2015-07-29 安徽马钢工程技术集团有限公司 Slice mining method for small-scale opencast quarry
CN105507904A (en) * 2016-01-15 2016-04-20 长沙有色冶金设计研究院有限公司 Strip mine foundation pit production method
CN105528495A (en) * 2015-12-30 2016-04-27 中国神华能源股份有限公司 Movement determination method for middle coal transportation ditch in dragline stripping process
CN107575232A (en) * 2017-09-18 2018-01-12 万宝矿产有限公司 A kind of method that stripping rock is reduced during mining
CN108756886A (en) * 2018-06-04 2018-11-06 东北大学 A kind of Metal Open hillside is transferred to interior row's process design method in deep recessed stage
CN109284848A (en) * 2017-07-21 2019-01-29 黄甫 The long-range casting planing method of interior row's opencut and computing system
CN109826214A (en) * 2018-12-26 2019-05-31 中国矿业大学 Discharge method and construction method in a kind of inclined substrate opencut
CN110285731A (en) * 2019-05-20 2019-09-27 湖北三鑫金铜股份有限公司 A kind of determination method of opencut main access segment blast Hole pattern parameters
CN110984991A (en) * 2019-12-12 2020-04-10 神华准格尔能源有限责任公司 Method for moving intermediate bridge of open stope
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
CN111894593A (en) * 2020-08-05 2020-11-06 东北大学 Method for realizing rapid internal drainage in metal strip mine hillside mining
CN112281872A (en) * 2020-09-30 2021-01-29 华南理工大学 In-situ retaining dam for dumping in mining pit of sunken open-pit mine and construction method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1556306A (en) * 2004-01-08 2004-12-22 北京科技大学 Open air mine semicontinuous conveying system single line slope conveying designing method
CN1601054A (en) * 2004-10-10 2005-03-30 北京科技大学 Method for intensified mining deep-dished strip mine
CN101418690A (en) * 2008-11-21 2009-04-29 平朔煤炭工业公司 Flat coal deposit large open pit mine end-slope transport technological process
CN102607341A (en) * 2012-02-27 2012-07-25 薛世忠 Stable-control blasting method for open-pit mine slopes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1556306A (en) * 2004-01-08 2004-12-22 北京科技大学 Open air mine semicontinuous conveying system single line slope conveying designing method
CN1601054A (en) * 2004-10-10 2005-03-30 北京科技大学 Method for intensified mining deep-dished strip mine
CN101418690A (en) * 2008-11-21 2009-04-29 平朔煤炭工业公司 Flat coal deposit large open pit mine end-slope transport technological process
CN102607341A (en) * 2012-02-27 2012-07-25 薛世忠 Stable-control blasting method for open-pit mine slopes

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
任彩梅等: "分区陡帮横采内排技术在露天煤矿的应用", 《煤矿安全技术》, 1 April 2011 (2011-04-01) *
张桂秋: "南芬露天铁矿陡帮剥岩与矿山生产能力匹配的再探讨", 《金属矿山》, no. 4, 1 May 1993 (1993-05-01) *
胡军尚: "露天矿内排土技术在姑山铁矿的应用", 《金属矿山》, no. 10, 15 October 2009 (2009-10-15) *

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103174427A (en) * 2013-04-09 2013-06-26 中煤平朔集团有限公司 Method for exploiting downward deepening section of anticlinal part of opencast coal mine
CN103470262A (en) * 2013-09-12 2013-12-25 中国矿业大学 Mining method of nearly horizontal mineral deposit of opencast coal field by casting and internally dumping
CN104806248A (en) * 2015-04-23 2015-07-29 安徽马钢工程技术集团有限公司 Slice mining method for small-scale opencast quarry
CN104806248B (en) * 2015-04-23 2017-02-01 安徽马钢工程技术集团有限公司 Slice mining method for small-scale opencast quarry
CN105528495B (en) * 2015-12-30 2018-07-03 中国神华能源股份有限公司 A kind of middle part transporting coal ditch shifting in suspension bucket pinch spalling separating process sets determining method
CN105528495A (en) * 2015-12-30 2016-04-27 中国神华能源股份有限公司 Movement determination method for middle coal transportation ditch in dragline stripping process
CN105507904A (en) * 2016-01-15 2016-04-20 长沙有色冶金设计研究院有限公司 Strip mine foundation pit production method
CN109284848A (en) * 2017-07-21 2019-01-29 黄甫 The long-range casting planing method of interior row's opencut and computing system
CN107575232A (en) * 2017-09-18 2018-01-12 万宝矿产有限公司 A kind of method that stripping rock is reduced during mining
CN108756886B (en) * 2018-06-04 2020-07-14 东北大学 Internal drainage process design method for metal strip mine slope turning into deep concave stage
CN108756886A (en) * 2018-06-04 2018-11-06 东北大学 A kind of Metal Open hillside is transferred to interior row's process design method in deep recessed stage
CN109826214B (en) * 2018-12-26 2021-02-19 中国矿业大学 Inclined-base strip mine internal drainage method and construction method
CN109826214A (en) * 2018-12-26 2019-05-31 中国矿业大学 Discharge method and construction method in a kind of inclined substrate opencut
CN110285731A (en) * 2019-05-20 2019-09-27 湖北三鑫金铜股份有限公司 A kind of determination method of opencut main access segment blast Hole pattern parameters
CN110984991A (en) * 2019-12-12 2020-04-10 神华准格尔能源有限责任公司 Method for moving intermediate bridge of open stope
CN110984991B (en) * 2019-12-12 2021-06-29 神华准格尔能源有限责任公司 Method for moving intermediate bridge of open stope
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
CN111894593A (en) * 2020-08-05 2020-11-06 东北大学 Method for realizing rapid internal drainage in metal strip mine hillside mining
CN112281872A (en) * 2020-09-30 2021-01-29 华南理工大学 In-situ retaining dam for dumping in mining pit of sunken open-pit mine and construction method
CN112281872B (en) * 2020-09-30 2021-10-26 华南理工大学 In-situ retaining dam for dumping in mining pit of sunken open-pit mine and construction method

Similar Documents

Publication Publication Date Title
CN102966355A (en) Method for creating internal dumping conditions of strip mine
CN106121648B (en) A kind of sublevel open stoping mining chassis route ore drawing afterwards filling mining method
CN101967973B (en) Open stope-caving combined mining method
CN103470262A (en) Mining method of nearly horizontal mineral deposit of opencast coal field by casting and internally dumping
CN101899976B (en) Continuous coal mining process method of open-pit coal mine
CN103590830B (en) Open pit and underground space-time synchronous mining method for multiple-ore body
CN104533416A (en) Large-scale mechanized non-sill-pillar sub-level caving mining method for extremely thick ore body
CN103939102B (en) A kind of solid filling reclaims opencut side eventually and presses down the coal-mining method of coal
CN104806247B (en) Longitudinal combination bridge transportation resources is built in the middle of open-pit mine stope
CN103216238A (en) Open pit coal mine mining process
CN105019904A (en) Mining- machine-based slowly inclined thin ore vein mechanized continuous mining method
CN102086765B (en) High-sublevel multi-layer mining method of ultrathin copper ore body
CN107313804A (en) A kind of open coal mine end side pressure coal filling fully mechanized mining recovery method
CN110984989B (en) Mining method of steeply inclined medium-thickness ore body
CN1178284A (en) Open-cast and high step mining process
CN109899070B (en) Slow-inclination medium-thickness ore body solid-waste-free filling mining method based on ellipsoid ore drawing structure
CN109869150A (en) A kind of mine resources are segmented the full office of adopting and fill recovery method
CN109630121B (en) Steering, developing and transporting system for strip mining area
CN106703809A (en) Method for forming cover layer through induced falling of open-pit-to-underground multi-branched orebody
CN106640080A (en) Deep part high-stress environment self-stabilizing arched stope arrangement mining method
CN108547658B (en) A kind of high inclination-angle ultra-thin coal seam spoil is from slipping backfilling goaf method
RU2543765C2 (en) Method of open mining of mineral deposits with forming of dump with large volume and height in difficult conditions
CN108756886A (en) A kind of Metal Open hillside is transferred to interior row's process design method in deep recessed stage
CN109458181A (en) A kind of filling mining method of metallic ore across pitch full-seam mining
CN106939788A (en) Truck cooperates with ore removal sublevel drilling block chambering method

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20130313

C02 Deemed withdrawal of patent application after publication (patent law 2001)