CN108592719A - Help the permanent ramp forming method in arterial highway in opencut end - Google Patents
Help the permanent ramp forming method in arterial highway in opencut end Download PDFInfo
- Publication number
- CN108592719A CN108592719A CN201810440995.1A CN201810440995A CN108592719A CN 108592719 A CN108592719 A CN 108592719A CN 201810440995 A CN201810440995 A CN 201810440995A CN 108592719 A CN108592719 A CN 108592719A
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- ramp
- explosion
- region
- rock
- drilling
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to a kind of opencut ends to help the permanent ramp forming method in arterial highway, it is therefore an objective to solve that existing ramp construction process is time-consuming and laborious, it is of high cost to build and the technical problem of ramp that is being repaiied stability difference.Technical solution is 1) drilling：It needs to drill on the original hard rock for building ramp in the opencut end side downward deepening region in arterial highway, drilling parameter is rationally set, and is stepped up drilling depth by top of the slope to bottom of slope according to the gradient in required ramp；2) region explosion：According to drilling depth, explosive payload, the rock in blasting boreholes regional extent are accurately determined；3) material adopts dress：After the explosion of region, bulk material in the top surface areas of ramp is pushed into ramp bottom using bull-dozer, installing is standby to be carried out adopting dress by adopting；4) ramp is modified：It is modified after bulk material to be blasted adopts dress, on the rock ramp top surface after explosion and forms ramp.Blasting cost of the present invention is low, time saving and energy saving, and the ramp hardness formed is higher, is easy to safeguard, truck transport is efficient.
Description
Technical field
The invention belongs to opencast mining technical fields, are related to a kind of opencut end side permanent ramp forming method in arterial highway.
Background technology
In the opencut using shovel-truck techmologv, it is generally dry through working face shiftable ramp, end side by truck to adopt stripping material
It transports to appointed place in road.Therefore, the quality of truck transport road is the important factor in order of truck efficiency.Close horizontal outdoor
In mine, side arterial highway in end is directly formed on pristine formation top, and road quality is higher, and truck efficiency is higher.
When meeting with complex geological condition, such as downward deepening section of anticlinal part, coal seam drastically declines, and end side arterial highway need to be according to coal
Layer inclination conditions, continuous deepening ensure that transportation system is unimpeded.It is certain by explosion when side arterial highway in end forms downward deepening ramp
Arterial highway is helped at the end of length, and after digging partial material, it is ramp that surplus material is repaiied pad according to design standard, as shown in Figure 1.The party
Method there are the problem of be：1, former ramp is drilled, then comprehensive explosion, time-consuming and laborious, and quick-fried in drilling using region-wide overall height
It is broken of high cost；2, ramp is directly formed on explosion heap, causes side road quality in end to decline, truck transport efficiency is affected；
3, material loosening after explosion influences the stability of integral end side；4, bulk material natural repose angle is larger, causes end side pressure coal amount
Increase.
Invention content
Present invention aim to address existing opencut end side ramp construction process present in it is time-consuming and laborious, build into
The technical problem of this height and the ramp stability difference repaiied provides a kind of opencut end side permanent ramp forming method in arterial highway.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of opencut end side permanent ramp forming method in arterial highway, includes the following steps：
1) it drills：It needs to drill on the original hard rock for building ramp in the opencut end side downward deepening region in arterial highway, root
According to rock stratum attribute and burst region parameter, drilling parameter is rationally set, and according to the gradient in required ramp, by top of the slope to bottom of slope,
Gradually uniformly increase drilling depth；
2) region explosion：According to drilling depth, explosive payload, the rock in blasting boreholes regional extent are accurately determined；
3) material adopts dress：After the explosion of region, bulk material in the top surface areas of ramp is pushed into ramp bottom using bull-dozer,
By adopting, installing is standby to be carried out adopting dress；
4) ramp is modified：It modifies and is formed after bulk material to be blasted adopts dress, on the rock ramp top surface after explosion
Ramp.
Further, the aperture to drill in the step 1) is 160-250mm, and the pitch-row and array pitch of drilling are 7-8m.
The beneficial effects of the invention are as follows：
1, when present invention drilling, by top of the slope to bottom of slope, drilling depth is sequentially increased, in explosion, the original hard rock of explosion
The half of volume saves blasting cost；
2, the main part that the present invention builds ramp is remaining original hard rock after explosion, and the later stage is only needed slightly to rest and reorganize i.e.
Can, it is time saving and energy saving, and road surface hardness is higher, is easy to safeguard, truck transport is efficient；
3, ramp main part is original hard rock, and natural repose angle is smaller, and smaller, end side pressure coal amount is influenced on lower part square position
It is few.
Description of the drawings
Fig. 1 is that ramp forming process schematic diagram is helped at original opencut end；
Fig. 2 is ramp forming process schematic diagram in the present invention.
Specific implementation mode
Invention is further explained with reference to the accompanying drawings and examples.
Embodiment 1
As shown in Fig. 2, the permanent ramp forming method in arterial highway, including following step are helped in a kind of opencut end in the present embodiment
Suddenly：
1) it drills：It needs to drill on the original hard rock for building ramp in the opencut end side downward deepening region in arterial highway, root
According to rock stratum attribute and burst region parameter, drilling parameter is rationally set, the aperture of the drilling is 250mm, the pitch-row of drilling and
Array pitch is 8m, according to the gradient in required ramp, by top of the slope to bottom of slope, gradually uniformly increases drilling depth；
2) region explosion：According to drilling depth, explosive payload, the rock in blasting boreholes regional extent are accurately determined；
3) material adopts dress：After the explosion of region, bulk material in the top surface areas of ramp is pushed into ramp bottom using bull-dozer,
By adopting, installing is standby to be carried out adopting dress；
4) ramp is modified：It modifies and is formed after bulk material to be blasted adopts dress, on the rock ramp top surface after explosion
Ramp.
Embodiment 2
The permanent ramp forming method in arterial highway is helped at a kind of opencut end in the present embodiment, is included the following steps：
1) it drills：It needs to drill on the original hard rock for building ramp in the opencut end side downward deepening region in arterial highway, root
According to rock stratum attribute and burst region parameter, drilling parameter is rationally set, the aperture of the drilling is 160mm, the pitch-row of drilling and
Array pitch is 7m, according to the gradient in required ramp, by top of the slope to bottom of slope, gradually uniformly increases drilling depth；
2) region explosion：According to drilling depth, explosive payload, the rock in blasting boreholes regional extent are accurately determined；
3) material adopts dress：After the explosion of region, bulk material in the top surface areas of ramp is pushed into ramp bottom using bull-dozer,
By adopting, installing is standby to be carried out adopting dress；
4) ramp is modified：It modifies and is formed after bulk material to be blasted adopts dress, on the rock ramp top surface after explosion
Ramp.
Embodiment 3
The permanent ramp forming method in arterial highway is helped at a kind of opencut end in the present embodiment, is included the following steps：
1) it drills：It needs to drill on the original hard rock for building ramp in the opencut end side downward deepening region in arterial highway, root
According to rock stratum attribute and burst region parameter, drilling parameter is rationally set, the aperture of the drilling is 200mm, the pitch-row of drilling and
Array pitch is 7.5m, according to the gradient in required ramp, by top of the slope to bottom of slope, gradually uniformly increases drilling depth；
2) region explosion：According to drilling depth, explosive payload, the rock in blasting boreholes regional extent are accurately determined；
3) material adopts dress：After the explosion of region, bulk material in the top surface areas of ramp is pushed into ramp bottom using bull-dozer,
By adopting, installing is standby to be carried out adopting dress；
4) ramp is modified：It modifies and is formed after bulk material to be blasted adopts dress, on the rock ramp top surface after explosion
Ramp.
Claims (2)
1. the permanent ramp forming method in arterial highway is helped at a kind of opencut end, which is characterized in that include the following steps：
1) it drills：It needs to drill on the original hard rock for building ramp in the opencut end side downward deepening region in arterial highway, according to rock
Layer attribute and burst region parameter, are rationally arranged drilling parameter, and according to the gradient in required ramp, by top of the slope to bottom of slope, gradually
Uniformly increase drilling depth；
2) region explosion：According to drilling depth, explosive payload, the rock in blasting boreholes regional extent are accurately determined；
3) material adopts dress：After the explosion of region, bulk material in the top surface areas of ramp is pushed into ramp bottom using bull-dozer, by adopting
Installing is standby to be carried out adopting dress；
4) ramp is modified：It is modified after bulk material to be blasted adopts dress, on the rock ramp top surface after explosion and forms ramp.
2. the permanent ramp forming method in arterial highway is helped at a kind of opencut end according to claim 1, it is characterised in that：The step
Rapid 1) the middle aperture to drill is 160-250mm, and the pitch-row and array pitch of drilling are 7-8m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810440995.1A CN108592719A (en) | 2018-05-10 | 2018-05-10 | Help the permanent ramp forming method in arterial highway in opencut end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810440995.1A CN108592719A (en) | 2018-05-10 | 2018-05-10 | Help the permanent ramp forming method in arterial highway in opencut end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108592719A true CN108592719A (en) | 2018-09-28 |
Family
ID=63636282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810440995.1A Withdrawn CN108592719A (en) | 2018-05-10 | 2018-05-10 | Help the permanent ramp forming method in arterial highway in opencut end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108592719A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482621A (en) * | 2021-07-01 | 2021-10-08 | 中国神华能源股份有限公司哈尔乌素露天煤矿 | Method for building slope ramp at end slope of strip mine |
| CN113654424A (en) * | 2021-09-02 | 2021-11-16 | 攀钢集团矿业有限公司 | New horizontal ditching method for deep open pit mine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1178284A (en) * | 1997-10-23 | 1998-04-08 | 北京矿冶研究总院 | Open-air high-step mining method |
-
2018
- 2018-05-10 CN CN201810440995.1A patent/CN108592719A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1178284A (en) * | 1997-10-23 | 1998-04-08 | 北京矿冶研究总院 | Open-air high-step mining method |
Non-Patent Citations (2)
| Title |
|---|
| 张猛: "固定坡道控制爆破技术研究", 《世界有色金属》 * |
| 谷君旺 等: "哈尔乌素露天矿斜坡道形成方法对比分析", 《露天采矿技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482621A (en) * | 2021-07-01 | 2021-10-08 | 中国神华能源股份有限公司哈尔乌素露天煤矿 | Method for building slope ramp at end slope of strip mine |
| CN113654424A (en) * | 2021-09-02 | 2021-11-16 | 攀钢集团矿业有限公司 | New horizontal ditching method for deep open pit mine |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20180928 |