CN104949590A - Rock blasting method - Google Patents
Rock blasting method Download PDFInfo
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- CN104949590A CN104949590A CN201510333482.7A CN201510333482A CN104949590A CN 104949590 A CN104949590 A CN 104949590A CN 201510333482 A CN201510333482 A CN 201510333482A CN 104949590 A CN104949590 A CN 104949590A
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Abstract
The invention discloses a rock blasting method. Blasting is conducted in the manner that a combined bearing platform blasting method and an independent bearing platform blasting method are both used alternately, and different punching modes and explosive amount determining modes are adopted in the two methods; the firing order of the combined bearing platform blasting is from the front row to the back row, low-section detonators are arranged in the front row, detonators used in the back row are sequentially increased, and the detonators within 10 sections are adopted; the firing order of the independent bearing platform blasting is from the middle to the periphery, the middle is blasted to form grooves and a free face, holes A on the periphery are blasted, and a combined bearing platform is blasted. By means of the blasting method, a target exploder can be completely destroyed, operation is safe, and the blasting efficiency is high.
Description
Technical field
The present invention relates to a kind of engineering explosion method, particularly relate to a kind of method of rock blasting.
Background technology
Engineering explosion is the method for a system and complexity, the scheme of explosion should be decided according to the geology of the environment of periphery and explosion, much needing the occasion of explosion, such as exist at special solid rock and general solid rock simultaneously, occasion in distribution in bulk, there is drillability of rock extreme difference, jewel hole speed be slow, explosiveness is common, feature that blasting protection workload is large, the effect adopting common blasting method to play is just very little.
Summary of the invention
The present invention is exactly for the problems referred to above, proposes a kind ofly to exist for special solid rock and general solid rock, blasting method in the occasion of distribution in bulk simultaneously, and this blasting method safety, efficiency are high.
For reaching above-mentioned technical purpose, present invention employs a kind of method of rock blasting, adopt conjuncted cushion cap explosion and independent cushion cap explosion intersection and mode carry out explosion, specifically comprise following method step:
A, conjuncted cushion cap explosion
A, punching and dose are determined: must first punch the hole array that footpath is 40 centimetres, hole depth is 1.4 meters, pitch-row is 0.6 meter, array pitch is 0.6 meter, and unit powder consumption is 0.6 kilogram every cubic metre, and single hole explosive payload is 2.5 kilograms;
The layout in b, big gun hole: adopt arranged in squares, row of detonating is 2 drain into 5 rows, and every tier hole is no more than 10, and borehole angle is balanced hole;
C, firing order: the order of detonating is front-seat low section, and rear row strengthens successively, and detonator hop count uses the detonator within 10 sections.
B, independent cushion cap explosion
A, punching and dose are determined: the aperture of punching is 40 millimeters, and hole depth is according to cushion cap degree of depth ultra-deep 20 centimetres of jewel holes, and pitch-row and array pitch are arranged according to pile cap shape, and intermediate hole presses the pitch arrangement of 0.4 meter, and periphery is arranged by pitch-row 0.3-0.5 rice; Unit powder consumption q is 0.8 kilogram every cubic metre, and single hole explosive payload is that unit amount of consumption of drugs, array pitch, pitch-row and hole depth are multiplied the number of gained;
B, firing order: first detonate slotting in centre, form the scope of freedom, and then the periphery hole that detonates;
The cutting design of c, grade beam and pipeline trench: hole depth surpasses 20 centimetres by projected depth, pitch-row is pressed 0.4-0.6 rice and is arranged, row runs according to 0.35 meter of layout, and unit powder consumption is 0.8 kilogram every cubic metre, and single hole explosive payload is that unit amount of consumption of drugs, array pitch, pitch-row and hole depth are multiplied the number of gained;
D, firing order: by the section in groove order every 5 big gun holes, increase successively from low to high.
The present invention adopt conjuncted cushion cap explosion and independent cushion cap explosion intersection and mode explosion, can thoroughly destroy target explosive, and handling safety, blasting efficiency is high.
Accompanying drawing explanation
Shown in Fig. 1 is the layout schematic diagram in conjuncted cushion cap big gun hole in the present invention;
Shown in Fig. 2 is the layout schematic diagram in independent cushion cap big gun hole in the present invention;
The stain indicated in figure is big gun hole;
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in more detail.
A method for rock blasting, adopt conjuncted cushion cap explosion and independent cushion cap explosion intersection and mode carry out explosion, specifically comprise following method step:
A, conjuncted cushion cap explosion, see Fig. 1
A, punching and dose are determined: must first punch the hole array that footpath is 40 centimetres, hole depth is 1.4 meters, pitch-row is 0.6 meter, array pitch is 0.6 meter, and unit powder consumption is 0.6 kilogram every cubic metre, and single hole explosive payload is 2.5 kilograms;
The layout in b, big gun hole: adopt arranged in squares, for ease of carrying out security protection, blow-up point scope should not be too large, and row of detonating is 2 drain into 5 rows, and every tier hole is no more than 10, and borehole angle is balanced hole;
C, firing order: the order of detonating is front-seat low section, and rear row strengthens successively, and detonator hop count uses the detonator within 10 sections.
B, independent cushion cap explosion, see Fig. 2
E, punching and dose are determined: the aperture of punching is 40 millimeters, and hole depth is according to cushion cap degree of depth ultra-deep 20 centimetres of jewel holes, and pitch-row and array pitch are arranged according to pile cap shape, and intermediate hole presses the pitch arrangement of 0.4 meter, and periphery is arranged by pitch-row 0.3-0.5 rice; Unit powder consumption q is 0.8 kilogram every cubic metre, and single hole explosive payload is that unit amount of consumption of drugs, array pitch, pitch-row and hole depth are multiplied the number of gained;
F, firing order: first detonate slotting in centre, form the scope of freedom, and then the periphery hole that detonates;
The cutting design of g, grade beam and pipeline trench: hole depth surpasses 20 centimetres by projected depth, pitch-row is pressed 0.4-0.6 rice and is arranged, row runs according to 0.35 meter of layout, and unit powder consumption is 0.8 kilogram every cubic metre, and single hole explosive payload is that unit amount of consumption of drugs, array pitch, pitch-row and hole depth are multiplied the number of gained;
H, firing order: by the section in groove order every 5 big gun holes, increase successively from low to high.
In practical operation, in order to the individual fly-rock in strict controlled blasting, three layers of tight Mulching methods should be adopted, namely first at each scuttle hatch one sand hill, and then add a cover iron sheet on sand hill, on iron sheet, finally press the sand hill of sufficient amount.Meanwhile, in order to after preventing explosion toxic gas to the infringement of human body, after discharging big gun, just cannon fodder will be waited to dispel can enter job site afterwards at every turn.
During in order to prevent from blowing out, noise is excessive, and near impact, resident's work and life, should add a cover the good material of some sound-absorbing effects, as gunnysack etc. on blow-up point.
Claims (1)
1. a method for rock blasting, is characterized in that, adopt conjuncted cushion cap explosion and independent cushion cap explosion intersection and mode carry out explosion, specifically comprise following method step:
A, conjuncted cushion cap explosion
A, punching and dose are determined: must first punch the hole array that footpath is 40 centimetres, hole depth is 1.4 meters, pitch-row is 0.6 meter, array pitch is 0.6 meter, and unit powder consumption is 0.6 kilogram every cubic metre, and single hole explosive payload is 2.5 kilograms;
The layout in b, big gun hole: adopt arranged in squares, row of detonating is 2 drain into 5 rows, and every tier hole is no more than 10, and borehole angle is balanced hole;
C, firing order: the order of detonating is front-seat low section, and rear row strengthens successively, and detonator hop count uses the detonator within 10 sections;
B, independent cushion cap explosion
A, punching and dose are determined: the aperture of punching is 40 millimeters, and hole depth is according to cushion cap degree of depth ultra-deep 20 centimetres of jewel holes, and pitch-row and array pitch are arranged according to pile cap shape, and intermediate hole presses the pitch arrangement of 0.4 meter, and periphery is arranged by pitch-row 0.3-0.5 rice; Unit powder consumption q is 0.8 kilogram every cubic metre, and single hole explosive payload is that unit amount of consumption of drugs, array pitch, pitch-row and hole depth are multiplied the number of gained;
B, firing order: first detonate slotting in centre, form the scope of freedom, and then the periphery hole that detonates;
The cutting design of c, grade beam and pipeline trench: hole depth surpasses 20 centimetres by projected depth, pitch-row is pressed 0.4-0.6 rice and is arranged, row runs according to 0.35 meter of layout, and unit powder consumption is 0.8 kilogram every cubic metre, and single hole explosive payload is that unit amount of consumption of drugs, array pitch, pitch-row and hole depth are multiplied the number of gained;
D, firing order: by the section in groove order every 5 big gun holes, increase successively from low to high.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510333482.7A CN104949590A (en) | 2015-06-16 | 2015-06-16 | Rock blasting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510333482.7A CN104949590A (en) | 2015-06-16 | 2015-06-16 | Rock blasting method |
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| CN104949590A true CN104949590A (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510333482.7A Pending CN104949590A (en) | 2015-06-16 | 2015-06-16 | Rock blasting method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823385A (en) * | 2016-04-08 | 2016-08-03 | 中钢集团马鞍山矿山研究院有限公司 | Protection method for decreasing blasting flying stone distance |
| CN110006302A (en) * | 2019-03-27 | 2019-07-12 | 淮北矿业股份有限公司 | A kind of asymmetric blasting method for removing milling coal hole sleeve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102809330A (en) * | 2012-08-17 | 2012-12-05 | 重庆市爆破工程建设有限责任公司 | Large collapse rock blasting method under precise control of digital electronic detonators |
| CN102818485A (en) * | 2012-08-17 | 2012-12-12 | 重庆市爆破工程建设有限责任公司 | High slope sunken layered blasting relief method |
| CN202956051U (en) * | 2012-12-14 | 2013-05-29 | 山东科技大学 | Detonating device for simulating tunneling of vertical shaft with square cross section |
| EP2115384B1 (en) * | 2007-02-16 | 2015-03-25 | Orica Explosives Technology Pty Ltd | Detonator assembly, blasting apparatus and corresponding method |
-
2015
- 2015-06-16 CN CN201510333482.7A patent/CN104949590A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2115384B1 (en) * | 2007-02-16 | 2015-03-25 | Orica Explosives Technology Pty Ltd | Detonator assembly, blasting apparatus and corresponding method |
| CN102809330A (en) * | 2012-08-17 | 2012-12-05 | 重庆市爆破工程建设有限责任公司 | Large collapse rock blasting method under precise control of digital electronic detonators |
| CN102818485A (en) * | 2012-08-17 | 2012-12-12 | 重庆市爆破工程建设有限责任公司 | High slope sunken layered blasting relief method |
| CN202956051U (en) * | 2012-12-14 | 2013-05-29 | 山东科技大学 | Detonating device for simulating tunneling of vertical shaft with square cross section |
Non-Patent Citations (1)
| Title |
|---|
| GUIHENG830918: "动态爆破施工方案", 《百度文库HTTP://WENKU.BAIDU.COM/LINK?URL=IZN1F7SYKCHNE4FD4KYROTB6AE0PCS7SKE1YI34FEPOPSZK51UZRAQKPLJTUD1UVDZTJ8QQE1NTPYRV31ESM07OBNFRLG85CFHPQRYB5DQ_》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823385A (en) * | 2016-04-08 | 2016-08-03 | 中钢集团马鞍山矿山研究院有限公司 | Protection method for decreasing blasting flying stone distance |
| CN110006302A (en) * | 2019-03-27 | 2019-07-12 | 淮北矿业股份有限公司 | A kind of asymmetric blasting method for removing milling coal hole sleeve |
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Application publication date: 20150930 |