CN114894052B - Accurate point setting method for open-air step blasting - Google Patents
Accurate point setting method for open-air step blasting Download PDFInfo
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- CN114894052B CN114894052B CN202111511207.1A CN202111511207A CN114894052B CN 114894052 B CN114894052 B CN 114894052B CN 202111511207 A CN202111511207 A CN 202111511207A CN 114894052 B CN114894052 B CN 114894052B
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- 238000005422 blasting Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000011435 rock Substances 0.000 claims abstract description 10
- 238000004880 explosion Methods 0.000 claims abstract description 5
- 239000002893 slag Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 3
- 239000000243 solution Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a precise point setting method for open-air step blasting, relates to the technical field of open-air step blasting, and particularly relates to a field precise point setting method in open-air step blasting. The field setting point is an accurate setting point, and the following method is to be followed: 11. setting a point 1-1.5 meters away from the edge of the step; 12. the edge area of the hillside is to form a hillside top line and a broken bottom line respectively after the double-layer points are connected into a line according to the hillside double-layer set points; 13. setting points on various ore-rock boundaries and distinguishing various ore-rock names; 14. setting points on the boundary line, wherein the connecting city line is a pre-splitting line; 15. at least one point is arranged on the operation flat disc along the trend of the explosion area and within 20 meters of trend, and a point is arranged near the flat disc at the lower part of the step; 16. setting points at corners of the terrain and ground objects; 17. points are arranged at the center and the root edge of the blind gun. The technical scheme of the invention solves the problems that in the prior art, because no accurate point setting method exists, the field actual situation can not be accurately provided for blasting engineering technicians, and safe and high-quality blasting can not be achieved.
Description
Technical Field
The invention discloses a precise point setting method for open-air step blasting, relates to the technical field of open-air step blasting, and particularly relates to a field precise point setting method in open-air step blasting.
Background
The method for setting the points in the open-air step blasting in the same industry at home at present comprises the following steps: points are set at equal intervals along the edge of the step on site, and the points are set at random inside. Thus, the conditions such as a resistance line, geology, a waste roadway, a blind gun and the like of the blasting area are difficult to determine by technicians, the blasting quality is reduced, the number of blocks is increased, and even the blind gun is carelessly detonated during blasting, the case of blasting accidents also occurs.
Aiming at the problems in the prior art, a novel accurate point setting method for open-air step blasting is researched and designed, so that the problems in the prior art are overcome.
Disclosure of Invention
According to the technical problems that the field actual situation cannot be accurately provided for blasting engineering technicians and safe high-quality blasting cannot be achieved due to the fact that the accurate point setting method is not provided in the prior art, the accurate point setting method for open-air step blasting is provided. The invention accurately reflects the technical conditions and technical parameters required by the open-sky bench blasting mainly by a site accurate point setting method, thereby providing basic conditions for achieving the purpose of safe and high-quality blasting.
The invention adopts the following technical means:
the accurate point setting method for the open-air step blasting comprises the following steps of: setting points on site, measuring a drawing, simulating hole distribution according to the drawing, perforating on site, measuring a blasting drawing, blasting design and blasting; the method is characterized in that:
the field setting point is an accurate setting point, and the following method is to be followed:
11. setting a point 1-1.5 meters away from the edge of the step;
12. the edge area of the hillside is to form a hillside top line and a broken bottom line respectively after the double-layer points are connected into a line according to the hillside double-layer set points;
13. setting points on various ore-rock boundaries and distinguishing various ore-rock names;
14. setting points on the boundary line, wherein the connecting city line is a pre-splitting line;
15. at least one point is arranged on the operation flat disc along the trend of the explosion area and within 20 meters of trend, and a point is arranged near the flat disc at the lower part of the step;
16. setting points at corners of the terrain and ground objects;
17. points are arranged at the center and the root edge of the blind gun.
Further, the method 11 requires that the corner must be located.
Further, the corner is provided with points no matter slag removal or slag pressing.
The on-site accurate point setting of the invention also needs to be carried out by hole distribution according to the following principle:
1. conditions of close relation to blasting safety and quality such as geology, hydrology, cracks, waste roadways and the like of the blasting area can be accurately reflected;
2. the method can provide references for blasting engineering technicians to perform blasting design;
3. the operation process is simple, convenient, safe and reliable.
Compared with the prior art, the invention has the following advantages:
1. according to the accurate point setting method for the open-air step blasting, provided by the invention, by setting the point at the position 1-1.5 m away from the edge of the step, the measurement error is reduced, the error of the resistance line of the head row hole is controlled within 0.3 m, and no root is generated because the resistance line is reasonable after blasting;
2. according to the accurate point setting method for open-air step blasting, the key point control and the reasonable hole distribution are realized by setting the points at the corners of the steps;
3. according to the accurate point setting method for open-air step blasting, a reasonable hole arrangement mode is selected according to the size of a resistance line through the mountain-shaped double-layer point setting according to the edge area of a mountain slope;
4. according to the accurate point setting method for open-air step blasting, points are set on various ore-rock demarcation lines, so that the ore-rock penetration and explosion separation are facilitated, and the ore loss dilution is reduced;
5. according to the accurate point setting method for the open-air step blasting, the effects of clear ground elevation and accurate design hole depth are achieved by arranging at least one point on the operation flat disc along the trend of the blasting area and within 20 meters of inclination;
6. according to the accurate point setting method for the open-air step blasting, provided by the invention, the effect of controlling blasting vibration and protecting the edge of the ground object is achieved by setting points at corners of the ground object on the ground;
7. according to the accurate point setting method for open bench blasting, provided by the invention, the points are set at the center and the root edge of the blind blasting, so that the reasonable pull-bottom blasting resistance line is realized, and the blasting safety purpose is realized.
In conclusion, the technical scheme of the invention solves the problems that in the prior art, because no accurate point setting method exists, the field actual situation can not be accurately provided for blasting engineering technicians, and safe and high-quality blasting can not be achieved.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The present invention will be described in detail with reference to examples.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values.
In the description of the present invention, it should be understood that the azimuth terms such as "front, rear, upper, lower, left, right", "horizontal, vertical, horizontal", and "top, bottom", etc. are only used for convenience in describing the present invention and simplifying the description, and these azimuth terms do not indicate or imply that the apparatus or elements to be referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of the present invention: the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above" and the like, may be used herein for ease of description to describe a spatial positional relationship of one device or feature to another device or feature. It will be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation. For example, if the device is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.
The invention provides a precise point setting method for blasting open-air steps, which comprises the following steps: setting points on site, measuring a drawing, simulating hole distribution according to the drawing, perforating on site, measuring a blasting drawing, blasting design and blasting; the method is characterized in that:
the field setting point is an accurate setting point, and the following method is to be followed:
11. setting a point 1-1.5 meters away from the edge of the step; points must be arranged at the corners; whether slag removal or slag pressing is required.
12. The edge area of the hillside is to form a hillside top line and a broken bottom line respectively after the double-layer points are connected into a line according to the hillside double-layer set points;
13. setting points on various ore-rock boundaries and distinguishing various ore-rock names;
14. setting points on the boundary line, wherein the connecting city line is a pre-splitting line;
15. at least one point is arranged on the operation flat disc along the trend of the explosion area and within 20 meters of trend, and a point is arranged near the flat disc at the lower part of the step;
16. setting points at corners of the terrain and ground objects;
17. points are arranged at the center and the root edge of the blind gun.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (3)
1. The accurate point setting method for the open-air step blasting comprises the following steps of: setting points on site, measuring a drawing, simulating hole distribution according to the drawing, perforating on site, measuring a blasting drawing, blasting design and blasting; the method is characterized in that:
the field setting point is an accurate setting point, and the following method is to be followed:
11. setting a point 1-1.5 meters away from the edge of the step;
12. the edge area of the hillside is to form a hillside top line and a broken bottom line respectively after the double-layer points are connected into a line according to the hillside double-layer set points;
13. setting points on various ore-rock boundaries and distinguishing various ore-rock names;
14. setting points on the boundary line, wherein the connecting city line is a pre-splitting line;
15. at least one point is arranged on the operation flat disc along the trend of the explosion area and within 20 meters of trend, and a point is arranged near the flat disc at the lower part of the step;
16. setting points at corners of the terrain and ground objects;
17. points are arranged at the center and the root edge of the blind gun.
2. The accurate setting point method for open bench blasting according to claim 1, wherein:
the method 11 requires that points must be located at the corners.
3. The accurate setting point method for open bench blasting according to claim 2, wherein:
the corner is provided with points no matter slag removal or slag pressing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111511207.1A CN114894052B (en) | 2021-12-03 | 2021-12-03 | Accurate point setting method for open-air step blasting |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111511207.1A CN114894052B (en) | 2021-12-03 | 2021-12-03 | Accurate point setting method for open-air step blasting |
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| Publication Number | Publication Date |
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| CN114894052A CN114894052A (en) | 2022-08-12 |
| CN114894052B true CN114894052B (en) | 2023-11-07 |
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| CN117952823B (en) * | 2024-03-26 | 2024-06-14 | 青岛慧拓智能机器有限公司 | Automatic extraction, classification and updating method for slope top and bottom lines of open-pit mining area |
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| CN107388909A (en) * | 2017-08-11 | 2017-11-24 | 中国葛洲坝集团易普力股份有限公司 | A kind of quick-fried area's bore distribution method precisely, quick, intelligent |
| CN110530219A (en) * | 2019-09-06 | 2019-12-03 | 中钢集团马鞍山矿山研究院有限公司 | A kind of control blasting method reducing loss and dilution |
| CN110779403A (en) * | 2019-09-25 | 2020-02-11 | 昆明理工大学 | Hole-by-hole initiation presplitting blasting crack forming method for open-air deep hole step presplitting hole under complex environment |
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| CN111259517A (en) * | 2020-01-08 | 2020-06-09 | 京工博创（北京）科技有限公司 | Tunnel blasting design method, device and equipment |
| CN111307003A (en) * | 2020-03-26 | 2020-06-19 | 包头钢铁（集团）有限责任公司 | Strip mine 24m high step slope expanding blasting method |
| CN111811348A (en) * | 2020-08-14 | 2020-10-23 | 中交路桥建设有限公司 | Excavation and tunneling construction method for damping control blasting of tunnel |
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2021
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|---|---|---|---|---|
| US6772105B1 (en) * | 1999-09-08 | 2004-08-03 | Live Oak Ministries | Blasting method |
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| CN106895755A (en) * | 2017-02-27 | 2017-06-27 | 贵州新联爆破工程集团有限公司 | A kind of air bench blasting intellectualized design method |
| CN107144192A (en) * | 2017-06-16 | 2017-09-08 | 西安科技大学 | A kind of intelligent construction method of pinpoint blasting |
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| CN111811348A (en) * | 2020-08-14 | 2020-10-23 | 中交路桥建设有限公司 | Excavation and tunneling construction method for damping control blasting of tunnel |
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