CN101551218A - Deep-shallow hole combined blasting method - Google Patents
Deep-shallow hole combined blasting method Download PDFInfo
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- CN101551218A CN101551218A CNA2009100591975A CN200910059197A CN101551218A CN 101551218 A CN101551218 A CN 101551218A CN A2009100591975 A CNA2009100591975 A CN A2009100591975A CN 200910059197 A CN200910059197 A CN 200910059197A CN 101551218 A CN101551218 A CN 101551218A
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- hole
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- blasting method
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Abstract
The invention provides a deep-shallow hole combined blasting method, relating to an engineering blasting method. The invention aims to provide a deep-shallow hole combined blasting method for reducing the ratio of large blasting block at the plugging section of blasting hole, and following technical solution is used to realize the invention aim, comprising following steps: (1) drilling the deep blasting hole according to the parameters of the designed blasting hole mesh; (2) drilling a blasting hole of small diameter at the centre of every four adjacent deep blasting holes by a min-driller, the depth of the small blasting hole is a little less than the plugging length of the deep blasting hole; (3) plugging the blasting hole ports after finishing the hole drilling to prepare for filling drugs. The invention is primarily applied to engineering blast.
Description
Technical field
The present invention relates to a kind of engineering explosion method, particularly relate to a kind of deep-shallow hole combined blasting method.
Background technology
Continuous development along with blasting technique, medium-length hole blasting has been widely used in the rock blasting construction at present, but because of influenced by geological conditions, quick-fried quarrel lumpiness difficult quality control after the explosion, particularly very easily produce the quick-fried quarrel of bulk in big gun hole plug section, therefore, under the special geologic condition, how to control quick-fried quarrel lumpiness, still do not have good method so far.
Summary of the invention
The purpose of this invention is to provide a kind ofly under special geologic condition, reduce the deep-shallow hole combined blasting method of the quick-fried quarrel lumpiness of big gun hole plug section boulder yield.
The objective of the invention is to realize by following technical proposal: deep-shallow hole combined blasting method may further comprise the steps:
(1), bored deep hole big gun hole by design blast hole network parameters;
(2), bore a small diameter blasthole with small-sized drill in every four adjacent deep blasting hole centers again, little blast hole depth is slightly less than the deep blasting hole stemming length;
(3), aperture, big gun hole is stopped up the wait charge explosion behind the pore-forming.
From method feature of the present invention as can be seen, the invention has the advantages that: the blasting technique of utilizing depth hole to combine, solved and under special geologic condition, stopped up the section quick-fried quarrel problem of bulk easily, improve the follow-up dress efficient of digging, save the second-time breakage cost, helped reducing whole explosion blasting cost under the special geologic condition.
The specific embodiment
The present invention is described further below by embodiment:
Preferred embodiment
Deep-shallow hole combined blasting method may further comprise the steps:
(1), bored deep hole big gun hole by design blast hole network parameters;
(2), bore a small diameter blasthole with small-sized drill in every four adjacent deep blasting hole centers again,
Little blast hole depth is slightly less than the deep blasting hole stemming length;
(3), aperture, big gun hole is stopped up the wait charge explosion behind the pore-forming.
Claims (1)
1, deep-shallow hole combined blasting method is characterized in that may further comprise the steps:
(1), bored deep hole big gun hole by design blast hole network parameters;
(2), bore a small diameter blasthole with small-sized drill in every four adjacent deep blasting hole centers again, little blast hole depth is slightly less than the deep blasting hole stemming length;
(3), aperture, big gun hole is stopped up the wait charge explosion behind the pore-forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100591975A CN101551218A (en) | 2009-05-06 | 2009-05-06 | Deep-shallow hole combined blasting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100591975A CN101551218A (en) | 2009-05-06 | 2009-05-06 | Deep-shallow hole combined blasting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101551218A true CN101551218A (en) | 2009-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100591975A Pending CN101551218A (en) | 2009-05-06 | 2009-05-06 | Deep-shallow hole combined blasting method |
Country Status (1)
| Country | Link |
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| CN (1) | CN101551218A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230769A (en) * | 2011-06-16 | 2011-11-02 | 汇通路桥建设集团有限公司 | Multi-row micro-differential roadbed deep hole blasting construction method |
| CN102494569A (en) * | 2011-11-24 | 2012-06-13 | 兰州大学 | Comprehensive blasting method of explosive pot explosive packages and prolonging explosive packages and capable of reducing blasting chunk rate |
| CN102506623A (en) * | 2011-11-24 | 2012-06-20 | 兰州大学 | Deep-hole and shallow-hole combined bench blasting method capable of reducing blasting boulder rate |
| CN105202984A (en) * | 2015-08-21 | 2015-12-30 | 西北矿冶研究院 | Blasting method for improving step deep hole blasting quality by using auxiliary blast holes |
| CN115325895A (en) * | 2022-09-20 | 2022-11-11 | 鹤庆北衙矿业有限公司 | Strip mine slope presplitting blasting layout mode |
-
2009
- 2009-05-06 CN CNA2009100591975A patent/CN101551218A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230769A (en) * | 2011-06-16 | 2011-11-02 | 汇通路桥建设集团有限公司 | Multi-row micro-differential roadbed deep hole blasting construction method |
| CN102230769B (en) * | 2011-06-16 | 2013-06-05 | 汇通路桥建设集团有限公司 | Multi-row micro-differential roadbed deep hole blasting construction method |
| CN102494569A (en) * | 2011-11-24 | 2012-06-13 | 兰州大学 | Comprehensive blasting method of explosive pot explosive packages and prolonging explosive packages and capable of reducing blasting chunk rate |
| CN102506623A (en) * | 2011-11-24 | 2012-06-20 | 兰州大学 | Deep-hole and shallow-hole combined bench blasting method capable of reducing blasting boulder rate |
| CN105202984A (en) * | 2015-08-21 | 2015-12-30 | 西北矿冶研究院 | Blasting method for improving step deep hole blasting quality by using auxiliary blast holes |
| CN115325895A (en) * | 2022-09-20 | 2022-11-11 | 鹤庆北衙矿业有限公司 | Strip mine slope presplitting blasting layout mode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20091007 |