CN103696770A - Cutting raise cutting method used in underground mining - Google Patents
Cutting raise cutting method used in underground mining Download PDFInfo
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- CN103696770A CN103696770A CN201310692187.1A CN201310692187A CN103696770A CN 103696770 A CN103696770 A CN 103696770A CN 201310692187 A CN201310692187 A CN 201310692187A CN 103696770 A CN103696770 A CN 103696770A
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- kerve
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- upward incise
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Abstract
The invention discloses a new cutting raise cutting technology used in underground mining. The technology is characterized by combining step cutting with parallel and oblique composite cutting, charging by steps and delaying primary blasting, wherein a parallel cut hole runs through the whole cutting raise length and is charged by two steps and an oblique cut hole inclines relative to a blasting plane and extends towards a center hole. The technology has the beneficial effects that the cutting raise once cutting length can be greatly increased, the cutting times can be reduced, the mine stoping process can be optimized and hazardous operation of workers under the condition that roofs are quite unstable during repeated cutting can be simultaneously avoided, thus reducing consumption of human and financial resources in the underground mine stope stoping process and improving the mine safety and production benefits.
Description
Technical field
The invention belongs to mining engineering field, relate to a kind of underground mining upward incise kerve new technology.
Background technology
At present, the main explosion driving technology that adopts in underground non-coal mine development heading digging process, for gentle dip and inclined orebody, owing to being subject to the impact at the slanting angle of ore body, the ore deposit rock of avalanche is difficult for gliding, and causes kerve effective length one time, and then affects the High-efficient Production in mine.With regard to domestic mine at present with regard to, one time kerve effective length is many between 6～10m, on complicated geological environment once kerve effective length than less.When upward incise length is excessive, need to carry out secondary kerve even during three kerves, kerve operation has repeatedly reduced back production efficiency, and brings very large potential safety hazard to mine staff.
Summary of the invention
The object of the present invention is to provide and a kind ofly can effectively improve underground non-coal mine upward incise kerve method, can not only improve mine and adopt accurate efficiency, and can improve field personnel's safety.
For achieving the above object, adopt technical scheme as follows:
Underground mining upward incise kerve method, adopts classification slotting and straight eye, the compound slotting of strabismus to combine, classification powder charge time delay onepull; Wherein, length and minute two-stage powder charge of whole upward incise run through in burn cut hole, and angled cut hole favours blast plane and extends to centre bore direction.
Press such scheme, described burn cut is straight eye emptying aperture cutting method.
Press such scheme, described angled cut is double wedge type angled cut mode.
Press such scheme, described double wedge type angled cut hole and the inclination angle of blast plane are 80 °-85 °.
Press such scheme, described angled cut is with the explosion that takes the lead in of first order burn cut, and second level burn cut postpones 200 milliseconds.
Press such scheme, described centre bore bottom is laid explosive and is participated in upward incise onepull, and detonates after easer.
Press such scheme, during slotting, be provided with via hole.
Press such scheme, during slotting, be provided with perimeter hole.
The invention has the beneficial effects as follows:
Can greatly improve the length of a kerve of upward incise, reduce kerve number of times, optimize mine process for stoping, the dangerous operation of staff in the extremely unsettled situation of top board (unsettled) while simultaneously avoiding repeatedly kerve, thereby reduce the consumption of the manpower and financial resources in mine underground stope mining process, improved mine safety and productivity effect.
Accompanying drawing explanation
Fig. 1: classification slotting sectional view of the present invention;
Fig. 2: first order A-A face blast plane cloth hole pattern of the present invention;
Fig. 3: the second level of the present invention B-B face blast plane cloth hole pattern;
Fig. 4: double-wedge angled cut schematic diagram of the present invention;
1-centre bore; 2-emptying aperture; 3-angled cut hole; 4-burn cut hole; 5-via hole; 6-perimeter hole.
The specific embodiment
Following examples are explaination technical scheme of the present invention further, not as limiting the scope of the invention.
Shown in Fig. 1,2,3,4, underground mining upward incise kerve method, adopts classification slotting and straight eye, the compound slotting of strabismus to combine, classification powder charge onepull; Wherein, length and minute two-stage powder charge of whole upward incise run through in burn cut hole 4, and angled cut hole 3 favours blast plane and extends to centre bore 1 direction.Angled cut can improve fragmentation and the sling movement effect of ore deposit rock in vallecular cavity, the compensation space of creating for second level burn cut.
Shown in Fig. 1,2,3,4, such scheme, described burn cut is straight eye emptying aperture cutting method.Around be symmetrically arranged with emptying aperture 2 runs through the first order and the second level to the centre bore 1 of blast plane, emptying aperture the effect that has increased burn cut is set.
Shown in Fig. 1,2,3,4, such scheme, described angled cut is double wedge type angled cut mode.
The inclination angle of double wedge type angled cut hole and blast plane is 80 °-85 °.Guarantee the length of the explosion first order.
Shown in Fig. 1,2,3,4, explosive is laid in centre bore 1 bottom.Centre bore 1 bottom packs the blasting charge into, and detonates after easer, increases the throwing effect of rubble in vallecular cavity, and then greatly improves the effective length of whole kerf blasting, even whole upward incise is once run through.
Angled cut is with the explosion that takes the lead in of first order burn cut, and second level burn cut postpones 200 milliseconds.
Shown in accompanying drawing 2,3, easer circle arranges via hole 5 outward.Guarantee the efficiency of a kerve of upward incise.
Shown in accompanying drawing 2,3, easer circle arranges perimeter hole 6 outward.Guarantee the efficiency of a kerve of upward incise.
Claims (8)
1. underground mining upward incise kerve method, is characterized in that adopting classification slotting and straight eye, the compound slotting of strabismus to combine, classification powder charge time delay onepull; Wherein, length and minute two-stage powder charge of whole upward incise run through in burn cut hole, and angled cut hole favours blast plane and extends to centre bore direction.
2. underground mining upward incise kerve method as claimed in claim 1, is characterized in that described burn cut is for straight eye emptying aperture cutting method.
3. underground mining upward incise kerve method as claimed in claim 1, is characterized in that described angled cut is double wedge type angled cut mode.
4. underground mining upward incise kerve method as claimed in claim 3, is characterized in that described double wedge type angled cut hole and the inclination angle of blast plane are 80 °-85 °.
5. underground mining upward incise kerve method as claimed in claim 1, is characterized in that described angled cut is with the explosion that takes the lead in of first order burn cut, and second level burn cut postpones 200 milliseconds.
6. underground mining upward incise kerve method as claimed in claim 1, is characterized in that laying the onepull of explosive participation upward incise bottom described centre bore, and detonates after easer.
7. the underground mining upward incise kerve method as described in claim 1-6 any one, is provided with via hole while it is characterized in that slotting.
8. the underground mining upward incise kerve method as described in claim 1-6 any one, is provided with perimeter hole while it is characterized in that slotting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310692187.1A CN103696770B (en) | 2013-12-17 | 2013-12-17 | Underground mining upward incise kerve method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310692187.1A CN103696770B (en) | 2013-12-17 | 2013-12-17 | Underground mining upward incise kerve method |
Publications (2)
| Publication Number | Publication Date |
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| CN103696770A true CN103696770A (en) | 2014-04-02 |
| CN103696770B CN103696770B (en) | 2016-01-06 |
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| CN201310692187.1A Expired - Fee Related CN103696770B (en) | 2013-12-17 | 2013-12-17 | Underground mining upward incise kerve method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157491A (en) * | 2015-08-07 | 2015-12-16 | 杨龙龙 | Blasting method for forming dome through tunnel large section |
| CN105333778A (en) * | 2015-12-03 | 2016-02-17 | 北车建设工程有限责任公司 | Medium-deep hole large-section composite cut blasting structure and 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 |
| CN106288991A (en) * | 2016-09-20 | 2017-01-04 | 中国地质大学（武汉） | A kind of underground mining cuts kerve method of going up a hill |
| CN106895754A (en) * | 2017-02-24 | 2017-06-27 | 贵州开磷集团股份有限公司 | A kind of inclined orebody cuts kerf blasting method of going up a hill |
| CN107560512A (en) * | 2017-10-23 | 2018-01-09 | 洛阳坤宇矿业有限公司 | It is a kind of using compound slotting and be layered elementary errors sinking and blasting method |
| CN109900174A (en) * | 2017-12-11 | 2019-06-18 | 南京梅山冶金发展有限公司 | Quick bursting kerve method suitable for different heights of lift |
| CN113153302A (en) * | 2021-02-04 | 2021-07-23 | 江西理工大学 | Upper and lower plate surrounding rock crushing control method suitable for thin-vein deposit stoping |
| CN114033373A (en) * | 2021-10-22 | 2022-02-11 | 武汉工程大学 | Raise boring machine-medium-length hole differential blasting cooperative one-time grooving method |
| CN115468464A (en) * | 2022-09-08 | 2022-12-13 | 北京科技大学 | Deep metal mine full-section deep hole blasting method based on accurate time delay of electronic detonator |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157491A (en) * | 2015-08-07 | 2015-12-16 | 杨龙龙 | Blasting method for forming dome through tunnel large section |
| CN105333778A (en) * | 2015-12-03 | 2016-02-17 | 北车建设工程有限责任公司 | Medium-deep hole large-section composite cut blasting structure and method |
| CN106247877B (en) * | 2016-08-03 | 2019-03-22 | 安徽马钢罗河矿业有限责任公司 | A kind of hypervelocity symmetrically forces kerve method without cutting hole deviation line |
| 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 |
| CN106288991A (en) * | 2016-09-20 | 2017-01-04 | 中国地质大学（武汉） | A kind of underground mining cuts kerve method of going up a hill |
| CN106895754A (en) * | 2017-02-24 | 2017-06-27 | 贵州开磷集团股份有限公司 | A kind of inclined orebody cuts kerf blasting method of going up a hill |
| CN107560512A (en) * | 2017-10-23 | 2018-01-09 | 洛阳坤宇矿业有限公司 | It is a kind of using compound slotting and be layered elementary errors sinking and blasting method |
| CN109900174A (en) * | 2017-12-11 | 2019-06-18 | 南京梅山冶金发展有限公司 | Quick bursting kerve method suitable for different heights of lift |
| CN109900174B (en) * | 2017-12-11 | 2021-08-17 | 南京梅山冶金发展有限公司 | Quick blasting groove-drawing method suitable for different sectional heights |
| CN113153302A (en) * | 2021-02-04 | 2021-07-23 | 江西理工大学 | Upper and lower plate surrounding rock crushing control method suitable for thin-vein deposit stoping |
| CN113153302B (en) * | 2021-02-04 | 2022-02-08 | 江西理工大学 | Upper and lower plate surrounding rock crushing control method suitable for thin-vein deposit stoping |
| CN114033373A (en) * | 2021-10-22 | 2022-02-11 | 武汉工程大学 | Raise boring machine-medium-length hole differential blasting cooperative one-time grooving method |
| CN114033373B (en) * | 2021-10-22 | 2024-02-06 | 武汉工程大学 | Reverse well drilling machine-medium deep hole differential blasting collaborative primary grooving method |
| CN115468464A (en) * | 2022-09-08 | 2022-12-13 | 北京科技大学 | Deep metal mine full-section deep hole blasting method based on accurate time delay of electronic detonator |
| CN115468464B (en) * | 2022-09-08 | 2023-11-03 | 北京科技大学 | Deep metal mine full-section deep hole blasting method based on accurate time delay of electronic detonator |
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