CN107144191A - A kind of step demolition of strip mines bore distribution method - Google Patents
A kind of step demolition of strip mines bore distribution method Download PDFInfo
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- CN107144191A CN107144191A CN201710456624.8A CN201710456624A CN107144191A CN 107144191 A CN107144191 A CN 107144191A CN 201710456624 A CN201710456624 A CN 201710456624A CN 107144191 A CN107144191 A CN 107144191A
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- blasthole
- quick
- mrow
- area
- fried
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The present invention provides a kind of step demolition of strip mines bore distribution method, belongs to opencast mining technical field.During step demolition of strip mines cloth hole, the rectangular area for including quick-fried area is determined according to quick-fried area's shape first；Further according to pitch-row, reject, the cloth hole in rectangular area such as burden, side eye distance；Then the blasthole outside quick-fried area's scope is deleted；Finally, mobile burden, the less blasthole of side eye distance, eye distance or the larger position supplement blasthole of burden on side.The present invention can realize quick-fried area it is in irregular shape in the case of simple and quick cloth hole, and make cloth hole uniform, regular, so as to improve drilling and loading rate, improve demolition effect, reduce production cost.
Description
Technical field
The invention belongs to opencast mining technical field, and in particular to a kind of step demolition of strip mines bore distribution method.
Background technology
At present, the method for step demolition of strip mines cloth hole mainly has two kinds, and one is opened from close to the side of step bench crest
Begin, from front to back cloth hole by row；Two are on rear side of the quick-fried area boundary line, from back to front cloth hole by row, and adjust front-seat hole position
Or perforations adding.It is more regular that the former is applied to quick-fried area's shape, especially step bench crest more straight situation；The latter is applied to quick-fried
Boundary line is the situation of the straight line perpendicular to step direction of propulsion on rear side of area.It is such as ellipse when quick-fried area's shape is very irregular
When, above-mentioned bore distribution method is difficult to carry out, and is easily caused blasthole line for wave, is unfavorable for rig and blasting agent mixing vehicle standard
It is turned into industry, reduction drilling and charging efficiency.
The content of the invention
The problem of existing for prior art, it is uniform that the present invention provides a kind of simple and easy to apply, cloth hole, it is possible to increase drilling and
The step demolition of strip mines bore distribution method of loading rate.
The technical solution adopted by the present invention is：A kind of step demolition of strip mines bore distribution method, comprises the following steps：
A. rectangular area is determined
Abscissa smallest point (2), the abscissa x of abscissa maximum point (3) in Qu Bao areas (1)2、x3, ordinate maximum point
(4), the ordinate y of ordinate smallest point (5)4、y5, with (x2,y4)、(x3,y4)、(x3,y5)、(x2,y5) it is summit, make rectangle
Region (6)；
In the case of known to each apex coordinate in quick-fried area, x2=min (xi), x3=max (xi), y4=max (yi), y5=
min(yi)；
B. the cloth hole in rectangular area
In the range of rectangular area (6), the one of opposing straight from both boundary line (8) on rear side of bench crest (7), quick-fried area
Side, according to minimum burden W, side eye distance L, arranges first blasthole (9), first row blasthole is arranged according to pitch-row a, and according to cloth
Hole mode and array pitch b, from the lateral opposite side in quick-fried area cloth hole by row.Wherein, W, L, a, b are according to opencut rock mass physical power
Learn property and explosion is empirically determined.
Odd row blasthole number To round symbol；
Even rows blasthole number
Blasthole row
C. the blasthole outside quick-fried area's scope is deleted
Check that blasthole whether in the range of quick-fried area, deletes the blasthole outside quick-fried area's scope；
D. blasthole is adjusted
For side eye distance or the less blasthole of burden (11), blasthole is moved by blasthole moving direction (12), makes its side
Eye distance reaches that L or burden reach minimum burden W；
E. blasthole is supplemented
Blasthole for closing on bench crest, if the midpoint of adjacent two blastholes line is along line perpendicular bisector direction to quick-fried area
The length L on borderpMinimum burden W more than or equal to 2 times, i.e. Lp>=2W, then mend on adjacent two blastholes line perpendicular bisector
Blasthole is filled, the burden for making the blasthole (13) of supplement is minimum burden；
Equally, for closing on the blasthole on other quick-fried area borders, if the midpoint of adjacent two blastholes line is vertically divided equally along line
The length L on line direction to quick-fried area borderpSide eye distance L more than or equal to 2 times, i.e. Lp>=2L, then vertically put down in adjacent two blastholes line
Blasthole is supplemented on separated time, the side eye distance for making the blasthole of supplement is L.
Judge boundary line (8) whose more straight method is on rear side of bench crest (7) and quick-fried area：Take the vertical seat on both all summits
Scale value ypi(i=1,2 ..., N), ybj(j=1,2 ..., M), N is the number of vertex of bench crest (7), and M is boundary line on rear side of quick-fried area
(8) number of vertex, y is calculated using following formula respectivelypi、ybjMeansquaredeviationσp、σb, the small person of mean square deviation is more straight；
In formula, upFor ypiThe average of (i=1,2 ..., N)；ubFor ybjThe average of (j=1,2 ..., M).
Computer judge blasthole whether the method in the range of quick-fried area：Cross blasthole and make a horizontal line, statistics blasthole both sides water
Horizontal line and the intersection point number on quick-fried area border, if the number of both sides intersection point is all odd number, the blasthole is in quick-fried area, otherwise in quick-fried area
Outside；Wherein, if two end points on quick-fried some side of area are all above made horizontal line, then it is assumed that the side is with horizontal line without friendship
Point.
What the present invention was reached has the technical effect that：Overcome the shortcomings of conventional surface ore deposit bench blasting cloth hole, realize any quick-fried
Simple and quick cloth hole under area's shape, and make cloth hole uniform, regular, so as to improve drilling and loading rate, improve explosion effect
Really, production cost is reduced.
Brief description of the drawings
Quick-fried areas and coordinate system schematic diagram of the Fig. 1 for the present invention；
Fig. 2 is the present invention by the hypothesis quick-fried area's cloth hole schematic diagram of rectangle；
Fig. 3 is blasthole schematic diagram outside the quick-fried area of deletion of the present invention.
Fig. 4 adjusts schematic diagram for the blasthole of the present invention.
Fig. 5 is that conventional method arranges blasthole schematic diagram.
In figure：1-quick-fried area, 2-abscissa smallest point, 3-abscissa maximum point, 4-ordinate maximum point, 5-vertical sit
Mark boundary line, 9-the first blasthole, 10-the second big gun on rear side of smallest point, 6-rectangular area, 7-bench crest, 8-quick-fried area
Hole, the less blasthole of 11-burden, 12-blasthole moving direction, the blasthole of 13-supplement.
W-minimum burden, L-side eye distance, a-pitch-row, b-reject, LpThe midpoint of-adjacent two blastholes line is along even
The length on line perpendicular bisector direction to quick-fried area border.
Embodiment
The present invention is further described by taking certain step demolition of strip mines cloth hole as an example below in conjunction with the accompanying drawings.
A. rectangular area is determined
Certain quick-fried area 1 of the opencut is as shown in figure 1, abscissa smallest point 2, the horizontal seat of abscissa maximum point 3 in Qu Bao areas 1
Mark x2=6.4, x3=69.9, ordinate maximum point 4, the ordinate y of ordinate smallest point 54=45.5, y5=6.7, with (x2,
y4)、(x3,y4)、(x3,y5)、(x2,y5) it is summit, make rectangular area 6, a length of 69.9-6.4=63.5m in rectangular area is a width of
45.5-6.7=38.8m.
B. the cloth hole in rectangular area
B1 determines cloth hole direction
Judge boundary line (8) whose more straight method is on rear side of bench crest (7) and quick-fried area：Take the vertical seat on both all summits
Scale value ypi(i=1,2 ..., N), ybj(j=1,2 ..., M), N is the number of vertex of bench crest (7), and M is boundary line on rear side of quick-fried area
(8) number of vertex, y is calculated using following formula respectivelypi、ybjMeansquaredeviationσp、σb, the small person of mean square deviation is more straight；
In formula, upFor ypiThe average of (i=1,2 ..., N)；ubFor ybjThe average of (j=1,2 ..., M).
From Fig. 1 it is measurable go out bench crest 7 on the ordinate of each point be respectively：38.8、41.9、44.2、45.5、44.9、
45.1, N be 6, upFor 43.4, on rear side of quick-fried area on boundary line 8 ordinate of each point be respectively 15.5,12.4,10.8,11.8,
9.3rd, 8.1,7.5,6.7,7.6,10.7, M is 10, ubFor 10.1, the vertical of all summits of bench crest 7 can be calculated according to above formula
The meansquaredeviationσ of coordinate valuep=2.57, the meansquaredeviationσ of the ordinate value on quick-fried area's rear side all summits in boundary line 8b=2.60.
σp<σb, illustrate that bench crest 7 is more straight, therefore, from the cloth hole by row of boundary line 8 on rear side of the lateral quick-fried area of bench crest 7 one.
B2 cloth holes in rectangular area according to blasting parameter
According to opencut rock mass physical mechanical property and explosion experience, its minimum burden W=5m, side eye distance L are determined
=4m, pitch-row a=8m, rejects b=6m.Illustrate cloth hole process by taking triangle pattern as an example：
According to minimum burden W, side eye distance L, first blasthole 9 is arranged, as shown in Figure 2.It is every in first left side of blasthole 9
A blasthole is arranged every horizontal range 8m, until beyond rectangular area.In the perpendicular bisector of first, second line of blasthole 10
Upper first blasthole close to location arrangements second row of the side of boundary line 8 away from first blasthole vertical range 6m on rear side of quick-fried area,
Using horizontal range 8m as remaining blasthole of arranged for interval second row.According to edge away from determining that the 3rd ranked first blasthole position with array pitch
Put, be sequentially arranged remaining blasthole respectively arranged.
Blasthole row is
Odd row blasthole number
Even rows blasthole number
C. the blasthole outside quick-fried area's scope is deleted
Check that blasthole whether in the range of quick-fried area, deletes the blasthole outside quick-fried area's scope, as shown in Figure 3；
Computer judge blasthole whether the method in the range of quick-fried area：Cross blasthole and make a horizontal line, statistics blasthole both sides water
Horizontal line and the intersection point number on quick-fried area border, if the number of both sides intersection point is all odd number, the blasthole is in quick-fried area, otherwise in quick-fried area
Outside.Wherein, if two end points on quick-fried some side of area are all above made horizontal line, then it is assumed that the side is with horizontal line without friendship
Point.Such as cross first blasthole 9 and make a horizontal line, first left side of blasthole 9 is without intersection point, and right side there are two intersection points, illustrates first
Individual blasthole 9 is outside quick-fried area.
D. blasthole is adjusted
For side eye distance or the less blasthole 11 of burden, blasthole is moved by blasthole moving direction 12 in Fig. 4, makes its side
Eye distance reaches that 4m or burden reach 5m；
E. blasthole is supplemented
Blasthole for closing on bench crest, if the midpoint of adjacent two blastholes line is along line perpendicular bisector direction to quick-fried area
The length L on borderpMinimum burden W more than or equal to 2 times, i.e. Lp>=2W=10m, then vertically divide equally in adjacent two blastholes line
Blasthole is supplemented on line, the burden for making the blasthole 13 of supplement is minimum burden W=5m, as shown in Figure 4.
Equally, for closing on the blasthole on other quick-fried area borders, if the midpoint of adjacent two blastholes line is vertically divided equally along line
The length L on line direction to quick-fried area borderpSide eye distance L more than or equal to 2 times, i.e. Lp>=2L=8m, then hang down in adjacent two blastholes line
Blasthole is supplemented on straight bisector, the side eye distance for making the blasthole of supplement is L=4m.
Final steel for shot is as shown in figure 4, most of blasthole is easy to rig and blasting agent mixing on the straight line being parallel to each other
Car operation, improves its operating efficiency.And conventional method arrangement blasthole as shown in figure 5, blasthole line be wave, make rig
Frequently moved in drilling and blasting agent mixing vehicle powder charge process to multiple directions, reduce its production efficiency.
Above by taking triangle pattern as an example, other patterns such as rectangle are equally applicable.
Claims (3)
1. a kind of step demolition of strip mines bore distribution method, it is characterised in that：Comprise the following steps：
A. rectangular area is determined
Abscissa smallest point (2), the abscissa x of abscissa maximum point (3) in Qu Bao areas (1)2、x3, it is ordinate maximum point (4), vertical
The ordinate y of coordinate smallest point (5)4、y5, with (x2,y4)、(x3,y4)、(x3,y5)、(x2,y5) it is summit, make rectangular area
(6)；
In the case of known to each apex coordinate in quick-fried area, x2=min (xi), x3=max (xi), y4=max (yi), y5=min
(yi)；
B. the cloth hole in rectangular area
In the range of rectangular area (6), the side of opposing straight, root from both boundary line (8) on rear side of bench crest (7), quick-fried area
According to minimum burden W, side eye distance L, first blasthole (9) is arranged, first row blasthole is arranged according to pitch-row a, and according to cloth hole side
Formula and array pitch b, from the lateral opposite side in quick-fried area cloth hole by row, wherein, W, L, a, b are according to opencut rock mass physical mechanical property
Matter and explosion are empirically determined；
Odd row blasthole number To round symbol；
Even rows blasthole number
Blasthole row
C. the blasthole outside quick-fried area's scope is deleted
Check that blasthole whether in the range of quick-fried area, deletes the blasthole outside quick-fried area's scope；
D. blasthole is adjusted
For side eye distance or the less blasthole of burden (11), blasthole is moved by blasthole moving direction (12), makes its side eye distance
Reach that L or burden reach minimum burden W；
E. blasthole is supplemented
Blasthole for closing on bench crest, if the midpoint of adjacent two blastholes line is along line perpendicular bisector direction to quick-fried area border
Length LpMinimum burden W more than or equal to 2 times, i.e. Lp>=2W, then supplement big gun on adjacent two blastholes line perpendicular bisector
Hole, the burden for making the blasthole (13) of supplement is minimum burden；
Equally, for closing on the blasthole on other quick-fried area borders, if the midpoint of adjacent two blastholes line is along line perpendicular bisector side
To the length L to quick-fried area borderpSide eye distance L more than or equal to 2 times, i.e. Lp>=2L, then in adjacent two blastholes line perpendicular bisector
Upper supplement blasthole, the side eye distance for making the blasthole of supplement is L.
2. a kind of step demolition of strip mines bore distribution method as claimed in claim 1, it is characterised in that：Judge bench crest (7) and
Boundary line (8) whose more straight method is on rear side of quick-fried area：Take the ordinate value y on both all summitspi(i=1,2 ..., N), ybj
(j=1,2 ..., M), N is the number of vertex of bench crest (7), and M is the number of vertex of boundary line (8) on rear side of quick-fried area, is distinguished using following formula
Calculate ypi、ybjMeansquaredeviationσp、σb, the small person of mean square deviation is more straight；
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1
In formula, upFor ypiThe average of (i=1,2 ..., N)；ubFor ybjThe average of (j=1,2 ..., M).
3. a kind of step demolition of strip mines bore distribution method as claimed in claim 1, it is characterised in that：Computer judges that blasthole is
Method in the range of Fou Bao areas：Cross blasthole and make a horizontal line, statistics blasthole both sides horizontal line and the intersection point number on quick-fried area border,
If the number of both sides intersection point is all odd number, the blasthole is in quick-fried area, otherwise outside quick-fried area；Wherein, if quick-fried some side of area
Two end points are all above made horizontal line, then it is assumed that the side is with horizontal line without intersection point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710456624.8A CN107144191B (en) | 2017-06-16 | 2017-06-16 | A kind of step demolition of strip mines bore distribution method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710456624.8A CN107144191B (en) | 2017-06-16 | 2017-06-16 | A kind of step demolition of strip mines bore distribution method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107144191A true CN107144191A (en) | 2017-09-08 |
| CN107144191B CN107144191B (en) | 2018-07-24 |
Family
ID=59781567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201710456624.8A Expired - Fee Related CN107144191B (en) | 2017-06-16 | 2017-06-16 | A kind of step demolition of strip mines bore distribution method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108917504A (en) * | 2018-05-20 | 2018-11-30 | 贵州新联爆破工程集团有限公司 | A kind of adaptive method for arranging of blasthole |
| CN110567330A (en) * | 2019-08-19 | 2019-12-13 | 西北矿冶研究院 | blasting method for safely and efficiently recovering irregular ore pillars in goaf |
| CN111207639A (en) * | 2020-03-20 | 2020-05-29 | 本钢板材股份有限公司 | Method for overcoming large chassis line resistance through deep hole blasting of strip mine |
| CN112161533A (en) * | 2020-09-29 | 2021-01-01 | 四川中鼎爆破工程有限公司 | Step blasting hole distribution method |
| CN114117854A (en) * | 2021-11-23 | 2022-03-01 | 北京奥信化工科技发展有限责任公司 | Intelligent hole distribution method for blast holes in any polygonal area |
| CN114427814A (en) * | 2022-01-28 | 2022-05-03 | 北京理工大学 | Automatic arrangement method and system for blast holes and electronic equipment |
| CN114543603A (en) * | 2021-11-23 | 2022-05-27 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Method and device for determining mine blasting side hole distance |
| CN115060127A (en) * | 2022-06-10 | 2022-09-16 | 大昌建设集团有限公司 | Blasting method and system for equidistantly-distributed hole steps, storage medium and intelligent terminal |
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| US20050010385A1 (en) * | 1999-09-08 | 2005-01-13 | Heck Jay Howard | Blasting method |
| WO2007096734A1 (en) * | 2006-02-20 | 2007-08-30 | Institute Of Communications And Information Technologies, Kyrgyz-Russian Slavic University | Method for drilling-and-blasting operations at open pits |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108917504A (en) * | 2018-05-20 | 2018-11-30 | 贵州新联爆破工程集团有限公司 | A kind of adaptive method for arranging of blasthole |
| CN108917504B (en) * | 2018-05-20 | 2020-12-01 | 保利新联爆破工程集团有限公司 | Self-adaptive arrangement method for blast holes |
| CN110567330A (en) * | 2019-08-19 | 2019-12-13 | 西北矿冶研究院 | blasting method for safely and efficiently recovering irregular ore pillars in goaf |
| CN110567330B (en) * | 2019-08-19 | 2021-12-31 | 西北矿冶研究院 | Blasting method for safely and efficiently recovering irregular ore pillars in goaf |
| CN111207639A (en) * | 2020-03-20 | 2020-05-29 | 本钢板材股份有限公司 | Method for overcoming large chassis line resistance through deep hole blasting of strip mine |
| CN112161533A (en) * | 2020-09-29 | 2021-01-01 | 四川中鼎爆破工程有限公司 | Step blasting hole distribution method |
| CN114117854A (en) * | 2021-11-23 | 2022-03-01 | 北京奥信化工科技发展有限责任公司 | Intelligent hole distribution method for blast holes in any polygonal area |
| CN114543603A (en) * | 2021-11-23 | 2022-05-27 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Method and device for determining mine blasting side hole distance |
| CN114117854B (en) * | 2021-11-23 | 2022-07-29 | 北京奥信化工科技发展有限责任公司 | Intelligent hole distribution method for blast holes in any polygonal area |
| CN114543603B (en) * | 2021-11-23 | 2023-07-28 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Determination method and device for mine blasting edge hole distance |
| CN114427814A (en) * | 2022-01-28 | 2022-05-03 | 北京理工大学 | Automatic arrangement method and system for blast holes and electronic equipment |
| CN114427814B (en) * | 2022-01-28 | 2022-10-14 | 北京理工大学 | Automatic blast hole arrangement method and system and electronic equipment |
| CN115060127A (en) * | 2022-06-10 | 2022-09-16 | 大昌建设集团有限公司 | Blasting method and system for equidistantly-distributed hole steps, storage medium and intelligent terminal |
| CN115060127B (en) * | 2022-06-10 | 2024-02-20 | 大昌建设集团有限公司 | Equidistant hole distribution step blasting method, equidistant hole distribution step blasting system, storage medium and intelligent terminal |
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