CN102506623A - Deep-hole and shallow-hole combined bench blasting method capable of reducing blasting boulder rate - Google Patents
Deep-hole and shallow-hole combined bench blasting method capable of reducing blasting boulder rate Download PDFInfo
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- CN102506623A CN102506623A CN2011103792390A CN201110379239A CN102506623A CN 102506623 A CN102506623 A CN 102506623A CN 2011103792390 A CN2011103792390 A CN 2011103792390A CN 201110379239 A CN201110379239 A CN 201110379239A CN 102506623 A CN102506623 A CN 102506623A
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Abstract
The invention relates to a deep-hole and shallow-hole combined bench blasting method capable of reducing blasting boulder rate. The method comprises the following steps of: 1) drilling boreholes on the bench of a blasting area through a triangular or quincunx-shaped hole arrangement method according to open deep-hole bench blasting design and requirements to obtain deep holes; 2) drilling a shallow borehole with hole diameter being less than or equal to 50mm in the middle between every two deep holes in the same row to obtain shallow holes; 3) respectively charging the deep holes and the shallow holes, laying initiating explosive cartridges and blocking the mouths of the deep holes and the shallow holes; and 4) conducting row-to-row sequential short-delay initiation according to initiation sequence in design requirements and blasting in one step. The deep-hole and shallow-hole combined bench blasting method capable of reducing blasting boulder rate has the advantages that the problem of high boulder rate of blocked sections in a deep-hole bench blasting method is solved, the blasting effect is improved, the subsequent excavating and loading efficiency is improved, the engineering progress is accelerated and the engineering cost is reduced.
Description
Technical field
The present invention relates to a kind of engineering explosion method, relate in particular to the bench blasting method that depth hole combines to reduce the explosion boulder yield.
Background technology
Along with rig and carrier loader are updated; Blasting technique constantly improve growing with explosive, the superiority of deep hole step explosion is more obvious, and its application is constantly widened; Range of application constantly enlarges; Be widely used in the rock blasting construction of engineerings such as mining, Rail Highway construction, Hydraulic and Hydro-Power Engineering, the flat base of civil construction, but, especially received explosive mainly to place the bottom in big gun hole to cause along pockety influence of big gun axially bored line explosion energy because of receiving the influence of geological conditions, explosive kind, construction technology etc.; Make quick-fried quarrel lumpiness be difficult to control, particularly very easily produce bulk in big gun hole plug section.How to control quick-fried quarrel lumpiness, reduce boulder yield, the effective way of failing so far to find becomes one of problem demanding prompt solution in the engineering explosion.Bulk in the quick-fried quarrel not only influences shovel dress efficient, the wearing and tearing of acceleration equipment, and increased the workload of secondary blasting, and have a strong impact on project progress, improved blasting cost.
Summary of the invention
Technical problem to be solved by this invention provides the bench blasting method that a kind of depth hole that reduces the quick-fried quarrel boulder yield of big gun hole plug section combines to reduce the explosion boulder yield.
For addressing the above problem, the depth of the present invention hole combines to reduce the bench blasting method of explosion boulder yield, may further comprise the steps:
(1) on quick-fried district step, press triangle or quincunx pattern, according to open-air deep hole step blasting Design with require the Drilling deep blasting hole, promptly get deep hole;
(2) in the shallow big gun hole of boring an aperture Φ≤50mm, promptly get shallow bore hole with the center position between per two the said deep holes of row;
(3) said deep hole and said shallow bore hole are carried out powder charge respectively, and lay igniting primer, carry out the aperture of said deep hole and said shallow bore hole and stop up;
(4) arrange by the firing order in the designing requirement between the order millisecond detonating, onepull gets final product.
The degree of depth of said shallow bore hole is stopped up the length 0.2m～0.8m of section greater than said deep hole medium-length hole.
The present invention compared with prior art has the following advantages:
The present invention arranges shallow bore hole again through both having arranged deep hole same row, i.e. the alternate layout of deep hole and shallow bore hole; Many artillery salvos hole adopts triangle (quincunx) mode to arrange; The explosion of order millisecond detonating has realized mutually combining of deep hole blasting and shallow blasting effect, the synergistic combinations effect of artillery salvo hole, front and back between row; Avoided because deep hole stops up the middle bottom that blast charging that the segment length causes mainly is in deep hole, caused along deep hole axis explosion energy skewness, mainly concentrate on the problem of bottom in the quick-fried district; Through between same row's two deep holes, arranging shallow bore hole, the blast of shallow bore hole borehole blasting powder charge can remedy the deficiency of top, quick-fried district blast ability simultaneously, thereby forms the combination of deep hole blasting and shallow blasting effect; Many artillery salvos hole is arranged through triangle (quincunx) mode simultaneously; The front and rear row shot hole blasting obtains coordinated, and the distribution of blast ability is optimized, and has solved the deep hole step explosion and has stopped up the high problem of section boulder yield; Improved demolition effect; Improve the follow-up dress efficient of digging, quickened project progress, reduced engineering cost.
Description of drawings
Do further detailed explanation below in conjunction with the accompanying drawing specific embodiments of the invention.
Fig. 1 is a sketch map of the present invention.
Fig. 2 is an A-A cutaway view of the present invention.
Fig. 3 is millisecond detonating sequential schematic between explosion row of the present invention.
Among the figure: 1-deep hole 2-shallow bore hole 3-quick-fried district step 4-deep hole stops up section 5-firing order.
The specific embodiment
Shown in Fig. 1～3, depth hole combines to reduce the bench blasting method of explosion boulder yield, may further comprise the steps:
(1) on quick-fried district step 3, press triangle (or quincunx) pattern, according to open-air deep hole step blasting Design with require the Drilling deep blasting hole, promptly get deep hole 1.
(2) in the shallow big gun hole of boring an aperture Φ≤50mm, promptly get shallow bore hole 2 with the center position between per two deep holes 1 of row.
(3) deep hole 1 and shallow bore hole 2 are carried out powder charge respectively, and lay igniting primer, carry out the aperture of deep hole 1 and shallow bore hole 2 and stop up.
(4) arrange by the firing order in the designing requirement 5 between the order millisecond detonating, onepull gets final product.
Wherein the degree of depth of shallow bore hole 2 is stopped up the length 0.2m～0.8m of section 4 greater than deep hole 1 medium-length hole.
Claims (2)
1. depth hole combines to reduce the bench blasting method of explosion boulder yield, may further comprise the steps:
(1) step (3) is gone up and press triangle or quincunx pattern in quick-fried district, according to open-air deep hole step blasting Design with require the Drilling deep blasting hole, promptly gets deep hole (1);
(2) in the shallow big gun hole of boring an aperture Φ≤50mm, promptly get shallow bore hole (2) with the center position between per two the said deep holes of row (1);
(3) said deep hole (1) and said shallow bore hole (2) are carried out powder charge respectively, and lay igniting primer, carry out the aperture of said deep hole (1) and said shallow bore hole (2) and stop up;
(4) arrange by the firing order in the designing requirement (5) between the order millisecond detonating, onepull gets final product.
2. the depth as claimed in claim 1 hole combines to reduce the bench blasting method of explosion boulder yield, it is characterized in that: the degree of depth of said shallow bore hole (2) is stopped up the length 0.2m～0.8m of section (4) greater than said deep hole (1) medium-length hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103792390A CN102506623A (en) | 2011-11-24 | 2011-11-24 | Deep-hole and shallow-hole combined bench blasting method capable of reducing blasting boulder rate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103792390A CN102506623A (en) | 2011-11-24 | 2011-11-24 | Deep-hole and shallow-hole combined bench blasting method capable of reducing blasting boulder rate |
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| CN102506623A true CN102506623A (en) | 2012-06-20 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735122A (en) * | 2012-07-09 | 2012-10-17 | 薛世忠 | Strip mine drilling blasting method |
| CN104266557A (en) * | 2014-07-31 | 2015-01-07 | 山东华联矿业股份有限公司 | Precontrol roof sublevel ore breaking once shaft forming method |
| CN105290602A (en) * | 2015-11-19 | 2016-02-03 | 中钢集团马鞍山矿山研究院有限公司 | Method for preparing explosive cladding metal bar |
| CN105528951A (en) * | 2015-11-30 | 2016-04-27 | 华北理工大学 | Open-air step blasting physical model |
| CN105571419A (en) * | 2016-01-28 | 2016-05-11 | 中钢集团马鞍山矿山研究院有限公司 | Blasting method capable of effectively reducing blasting boulder yield of surface mine |
| CN106123713A (en) * | 2016-06-30 | 2016-11-16 | 本钢板材股份有限公司 | A kind of opencut medium-length hole blasting bore distribution method and blasting method |
| CN108661642A (en) * | 2018-04-23 | 2018-10-16 | 北京科技大学 | A kind of method of the nearly upright Bumping Pressure in Coal Layers of depth hole relieving shot prevention |
| CN108952726A (en) * | 2018-07-05 | 2018-12-07 | 鞍钢集团矿业有限公司 | Have an opencast mining of the neighbouring step dislocation perforation method of medium-length hole blasting |
| CN112683120A (en) * | 2020-12-23 | 2021-04-20 | 中铁十九局集团矿业投资有限公司 | Method for blasting frozen soil layer of surface mine |
| CN114111483A (en) * | 2021-11-30 | 2022-03-01 | 广州铁路投资建设集团有限公司 | Can reduce demolition unit of deep basal pit stone square blasting bold rate |
| 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 |
| CN115979085A (en) * | 2023-03-07 | 2023-04-18 | 北京科技大学 | Liquid carbon dioxide blasting method suitable for open-air high steps |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030019383A1 (en) * | 2001-03-20 | 2003-01-30 | Young-Jae Yoon | Method of blasting bench of rock with improved blasting efficiency and reduced blasting nuisance |
| CN101140154A (en) * | 2007-10-29 | 2008-03-12 | 中铁二院工程集团有限责任公司 | Shock-absorbing blasting method used for bedding rock cutting excavation |
| CN101319862A (en) * | 2007-06-08 | 2008-12-10 | 鞍钢集团矿业公司 | Novel horizontal trenching and vertical deep borehole initiation method for deep concave strip mine |
| CN101551218A (en) * | 2009-05-06 | 2009-10-07 | 中铁二局股份有限公司 | Deep-shallow hole combined blasting method |
-
2011
- 2011-11-24 CN CN2011103792390A patent/CN102506623A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030019383A1 (en) * | 2001-03-20 | 2003-01-30 | Young-Jae Yoon | Method of blasting bench of rock with improved blasting efficiency and reduced blasting nuisance |
| CN101319862A (en) * | 2007-06-08 | 2008-12-10 | 鞍钢集团矿业公司 | Novel horizontal trenching and vertical deep borehole initiation method for deep concave strip mine |
| CN101140154A (en) * | 2007-10-29 | 2008-03-12 | 中铁二院工程集团有限责任公司 | Shock-absorbing blasting method used for bedding rock cutting excavation |
| CN101551218A (en) * | 2009-05-06 | 2009-10-07 | 中铁二局股份有限公司 | Deep-shallow hole combined blasting method |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735122A (en) * | 2012-07-09 | 2012-10-17 | 薛世忠 | Strip mine drilling blasting method |
| CN102735122B (en) * | 2012-07-09 | 2016-05-18 | 卓利维(北京)科技有限公司 | A kind of opencut perforated blasting method |
| CN104266557A (en) * | 2014-07-31 | 2015-01-07 | 山东华联矿业股份有限公司 | Precontrol roof sublevel ore breaking once shaft forming method |
| CN105290602B (en) * | 2015-11-19 | 2017-06-06 | 中钢集团马鞍山矿山研究院有限公司 | A kind of preparation method of Explosion composite metal bar |
| CN105290602A (en) * | 2015-11-19 | 2016-02-03 | 中钢集团马鞍山矿山研究院有限公司 | Method for preparing explosive cladding metal bar |
| CN105528951A (en) * | 2015-11-30 | 2016-04-27 | 华北理工大学 | Open-air step blasting physical model |
| CN105528951B (en) * | 2015-11-30 | 2017-12-05 | 华北理工大学 | Air bench blasting physical model |
| CN105571419A (en) * | 2016-01-28 | 2016-05-11 | 中钢集团马鞍山矿山研究院有限公司 | Blasting method capable of effectively reducing blasting boulder yield of surface mine |
| CN105571419B (en) * | 2016-01-28 | 2017-04-12 | 中钢集团马鞍山矿山研究院有限公司 | Blasting method capable of effectively reducing blasting boulder yield of surface mine |
| CN106123713A (en) * | 2016-06-30 | 2016-11-16 | 本钢板材股份有限公司 | A kind of opencut medium-length hole blasting bore distribution method and blasting method |
| CN108661642A (en) * | 2018-04-23 | 2018-10-16 | 北京科技大学 | A kind of method of the nearly upright Bumping Pressure in Coal Layers of depth hole relieving shot prevention |
| CN108661642B (en) * | 2018-04-23 | 2019-08-06 | 北京科技大学 | A kind of method of the nearly upright Bumping Pressure in Coal Layers of depth hole relieving shot prevention and treatment |
| CN108952726A (en) * | 2018-07-05 | 2018-12-07 | 鞍钢集团矿业有限公司 | Have an opencast mining of the neighbouring step dislocation perforation method of medium-length hole blasting |
| CN112683120A (en) * | 2020-12-23 | 2021-04-20 | 中铁十九局集团矿业投资有限公司 | Method for blasting frozen soil layer of surface mine |
| CN112683120B (en) * | 2020-12-23 | 2021-09-03 | 中铁十九局集团矿业投资有限公司 | Method for blasting frozen soil layer of surface mine |
| CN114111483A (en) * | 2021-11-30 | 2022-03-01 | 广州铁路投资建设集团有限公司 | Can reduce demolition unit of deep basal pit stone square blasting bold rate |
| 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 |
| CN115979085A (en) * | 2023-03-07 | 2023-04-18 | 北京科技大学 | Liquid carbon dioxide blasting method suitable for open-air high steps |
| CN115979085B (en) * | 2023-03-07 | 2024-03-19 | 北京科技大学 | Liquid carbon dioxide blasting method suitable for open-air high steps |
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Application publication date: 20120620 |