CN111595213A - Application of non-cutting raise grooving method in blasting stope - Google Patents
Application of non-cutting raise grooving method in blasting stope Download PDFInfo
- Publication number
- CN111595213A CN111595213A CN202010317084.7A CN202010317084A CN111595213A CN 111595213 A CN111595213 A CN 111595213A CN 202010317084 A CN202010317084 A CN 202010317084A CN 111595213 A CN111595213 A CN 111595213A
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- Prior art keywords
- detonating
- hole
- blasting
- holes
- stope
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- 238000005422 blasting Methods 0.000 title claims abstract description 35
- 238000005520 cutting process Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000002360 explosive Substances 0.000 claims abstract description 18
- 238000010276 construction Methods 0.000 claims abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 13
- 239000004576 sand Substances 0.000 claims description 11
- 239000011425 bamboo Substances 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 6
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 6
- 241001330002 Bambuseae Species 0.000 claims description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 6
- 239000000839 emulsion Substances 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 3
- 238000005065 mining Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000005474 detonation Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Images
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
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- 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
-
- 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
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
- F42D1/18—Plugs for boreholes
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Remote Sensing (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention discloses an application of a non-cutting raise grooving method in a blasting stope, wherein three-stroking deep holes are distributed in the stope before construction, large holes are connected in a large parallel mode to form a combined detonating network, the detonating network is laid from the innermost hole in sequence to the main trunk line direction of a detonating cord, and the detonating sequence is a detonator → 400 m non-electric detonating tubes → detonating main detonating cords → detonating non-electric industry detonators in all holes → detonating deep hole detonating cords → emulsified explosives in detonating holes, so that deep hole blasting is realized. By adopting the technical scheme, the novel blasting stoping process has the advantages of simple structure, reasonable design, convenience in use, simplified operation procedures and improved use safety.
Description
Technical Field
The invention relates to the technical field of mining engineering, in particular to application of a non-cutting raise grooving method in a blasting stope.
Background
In the mine production of China, stope cutting work is one of the most critical stoping process links of underground mining of ore deposit, and no matter which mining method is adopted, cutting engineering work is required before formal stoping. The cutting project is a tunneling project for providing a compensation space for the initial stope face and ore caving. The completion of the cutting work marks the end of the mining work and the beginning of the stoping work, and has the key functions of starting and stopping. Whether the cutting project can be constructed according to the design requirements and how the quality of the cutting groove is, whether the mining can be normally carried out and the effect of the recovery is good or bad. If the height of the cutting slot does not meet the design requirement, stoping blasting is not easy to be communicated with overlying rocks at the upper part to generate a suspended roof, a small empty field is formed, not only can the collapsed ores not be completely discharged, but also the later discharge stoping is influenced, and serious accidents can be caused when the suspended roof falls suddenly. Therefore, the quality of the cutting slot has a great influence on the blasting ore breaking effect.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention discloses an application of a non-cutting raise grooving method in a blasting stope, which is convenient to use, simplifies the operation procedure and improves the blasting recovery process with safe use.
The invention discloses an application of a non-cutting raise slotting method in a blasting stope, wherein three rows of deep holes are distributed in the stope before construction, each row of holes are respectively provided with three parallel large holes, two large holes are added between every two adjacent large holes at intervals, the charging structure of each large hole is that after the hole depth is confirmed at the bottom, a hole plugging plug made of iron wire and cement is used for hoisting the hole, in order to enable the shock wave of explosive to act on rock, lower filling sand is carried out above the hole plugging plug, emulsion explosive is filled on the lower filling sand, after the charging is finished, the lower filling sand is used for covering, coupled spaced charging is adopted in the large holes, the coupled spaced charging is sequentially connected with blasting cables, a bamboo tube is arranged at the top end of the large hole in a plugging manner, the joint end of the blasting cable arranged on the bamboo tube is connected with an external non-electric industry detonator through the iron wire, the large parallel connection is adopted between the large holes to form a combined blasting net, the laying sequence of the detonating network is from the innermost hole to the main trunk line of the detonating cord, and the detonating sequence is that the detonator → 400 m non-electric conductive blasting tube → detonating main detonating cord → detonating non-electric industry detonator of each hole → detonating deep hole detonating cord → emulsified explosive in the detonating hole, thus realizing deep hole blasting.
Furthermore, the diameter of the large holes is 165mm, the row spacing between three rows of deep holes is 3.0-1.0 m, and the spacing between adjacent large holes in each row is 3.0-1.0 m.
Further, the emulsion explosive in the coupled spaced charges is filled as a layer per 27 kg.
The beneficial effects are that: the novel blasting and recovery process has the advantages that the original manually constructed cutting raise is changed into the large-hole blasting and well forming, the cutting raise is not required to be constructed by people, a large-hole drilling machine is used for drilling rock, and blasting and well forming are carried out by explosive at the later stage, so that the construction time is shortened, the safety guarantee is increased, the structure is simple, the design is reasonable, the use is convenient, the operation procedure is simplified, and the use safety is improved.
Drawings
FIG. 1 is a schematic diagram of a large hole charge configuration for use in a blasting stope in accordance with a non-cutting raise channeling method of the present invention;
FIG. 2 is a schematic diagram of a blast-to-well for use in a blast stope in accordance with the present invention;
fig. 3 is a schematic diagram of the laying of a detonation network for the application of the non-cutting raise grooving method in a blasting stope.
Wherein: 1-non-electric industry detonators; 2-detonating cord; 3-iron wire; 4-bamboo tube; 5-emulsion explosive; 6-filling sand; 7-plugging the hole plug.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in figures 1-3, the invention discloses an application of a non-cutting raise slotting method in a blasting stope, wherein three rows of deep holes are distributed in the stope before construction, each row of holes is respectively provided with three parallel large holes, two large holes are added between adjacent large holes at intervals, the charging structure of each large hole is that after the hole depth is confirmed at the bottom, a hole plugging plug made of iron wire and cement is used for hoisting the hole, in order to enable the impact wave of explosive to act on rock, lower filling sand is carried out above the hole plugging plug, emulsion explosive is filled on the lower filling sand, after the charging is finished, the lower filling sand is used for covering, coupled spaced charging is adopted in the large holes, the coupled spaced charging is sequentially connected with detonating cords, a bamboo tube is arranged at the top end of the large holes, the connector end of the detonating cord arranged on the bamboo tube is connected with external non-electric industry detonators through iron wires, and the large parallel connection is adopted between the large holes to form a combined detonating net, the laying sequence of the detonating network is from the innermost hole to the main trunk line of the detonating cord, and the detonating sequence is that the detonator → 400 m non-electric conductive blasting tube → detonating main detonating cord → detonating non-electric industry detonator of each hole → detonating deep hole detonating cord → emulsified explosive in the detonating hole, thus realizing deep hole blasting.
Furthermore, the diameter of the large holes is 165mm, the row spacing between three rows of deep holes is 3.0-1.0 m, and the spacing between adjacent large holes in each row is 3.0-1.0 m.
Further, the emulsion explosive in the coupled spaced charges is filled as a layer per 27 kg.
When the cutting groove blasting. And (3) hoisting the hole again during each blasting, and then plugging the explosive by using sand after the explosive is loaded, so that the detonation of the explosive can act in the rock stratum to the maximum extent, and the blasting can achieve the best effect.
Finally, it should be noted that: the above embodiments are only used to illustrate the present invention and do not limit the technical solutions described in the present invention; thus, while the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted; all such modifications and variations are intended to be included herein within the scope of this disclosure and the present invention and protected by the following claims.
Claims (3)
1. The application of non-cutting raise slotting method in blasting stope is characterized by that before construction three rows of deep holes are distributed in the stope, every row of holes are respectively equipped with three parallel large holes, and between adjacent large holes two large holes are added, and the charging structure of every large hole is that after the hole depth is confirmed at bottom, the hole-plugging plug made of iron wire and cement is used for hanging hole, in order to make the impact wave of explosive act on rock, the upper portion of the hole-plugging plug is used for filling sand, and the emulsified explosive is started to be filled on the lower filling sand, and after the charging is finished, the lower filling sand is used for covering, and the interior of large hole is equipped with coupled spaced charging, and the coupled spaced charging is connected with blasting cables, and the top end of large hole is equipped with bamboo tube, and the blasting cable joint end set on the bamboo tube is connected with external non-electric detonator by iron wire, and the large holes are connected in parallel mode to form combined blasting net, the laying sequence of the detonating network is from the innermost hole to the main trunk line of the detonating cord, and the detonating sequence is that the detonator → 400 m non-electric conductive blasting tube → detonating main detonating cord → detonating non-electric industry detonator of each hole → detonating deep hole detonating cord → emulsified explosive in the detonating hole, thus realizing deep hole blasting.
2. The use of the non-cutting raise grooving method in a blasting stope according to claim 1, wherein the hole diameter of the large holes is 165mm, the row spacing between three rows of deep holes is 3.0-1.0 m, and the spacing between adjacent large holes in each row is 3.0-1.0 m.
3. Use of a non-cutting raise grooving method in a blasting stope according to claim 1, wherein the emulsion explosives in the coupled spaced charges are loaded as a layer per 27 kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010317084.7A CN111595213A (en) | 2020-04-21 | 2020-04-21 | Application of non-cutting raise grooving method in blasting stope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010317084.7A CN111595213A (en) | 2020-04-21 | 2020-04-21 | Application of non-cutting raise grooving method in blasting stope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111595213A true CN111595213A (en) | 2020-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010317084.7A Pending CN111595213A (en) | 2020-04-21 | 2020-04-21 | Application of non-cutting raise grooving method in blasting stope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111595213A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112796758A (en) * | 2021-01-15 | 2021-05-14 | 贵州化工建设有限责任公司 | High-segmentation non-cutting raise broaching and medium-length hole stage open stoping subsequent filling mining method |
| CN114086960A (en) * | 2022-01-21 | 2022-02-25 | 矿冶科技集团有限公司 | Forming method of cutting groove |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2285897C1 (en) * | 2005-04-28 | 2006-10-20 | Общество с ограниченной ответственностью Научно-техническая фирма "Взрывтехнология" | Explosive charge initiation system |
| CN101328809A (en) * | 2008-06-25 | 2008-12-24 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Non-bottom pillar deep hole falling-back type mining method |
| CN106247877A (en) * | 2016-08-03 | 2016-12-21 | 安徽马钢罗河矿业有限责任公司 | A kind of hypervelocity forces kerve method without cutting hole deviation line symmetry |
| CN108625855A (en) * | 2018-06-11 | 2018-10-09 | 安徽大昌矿业集团有限公司 | Safe and efficient mining methods under a kind of obturation |
| CN109373843A (en) * | 2018-12-18 | 2019-02-22 | 陕西冶金设计研究院有限公司 | A kind of no courtyard deep hole kerf blasting method |
-
2020
- 2020-04-21 CN CN202010317084.7A patent/CN111595213A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2285897C1 (en) * | 2005-04-28 | 2006-10-20 | Общество с ограниченной ответственностью Научно-техническая фирма "Взрывтехнология" | Explosive charge initiation system |
| CN101328809A (en) * | 2008-06-25 | 2008-12-24 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Non-bottom pillar deep hole falling-back type mining method |
| CN106247877A (en) * | 2016-08-03 | 2016-12-21 | 安徽马钢罗河矿业有限责任公司 | A kind of hypervelocity forces kerve method without cutting hole deviation line symmetry |
| CN108625855A (en) * | 2018-06-11 | 2018-10-09 | 安徽大昌矿业集团有限公司 | Safe and efficient mining methods under a kind of obturation |
| CN109373843A (en) * | 2018-12-18 | 2019-02-22 | 陕西冶金设计研究院有限公司 | A kind of no courtyard deep hole kerf blasting method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112796758A (en) * | 2021-01-15 | 2021-05-14 | 贵州化工建设有限责任公司 | High-segmentation non-cutting raise broaching and medium-length hole stage open stoping subsequent filling mining method |
| CN112796758B (en) * | 2021-01-15 | 2023-09-26 | 贵州化工建设有限责任公司 | Open stoping subsequent filling mining method at deep hole stage in high-section no-cutting raise pull groove |
| CN114086960A (en) * | 2022-01-21 | 2022-02-25 | 矿冶科技集团有限公司 | Forming method of cutting groove |
| CN114086960B (en) * | 2022-01-21 | 2022-04-19 | 矿冶科技集团有限公司 | Forming method of cutting groove |
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Application publication date: 20200828 |