CN103644788B - A kind of coal mine roadway burn cut eye increases prestige loading method - Google Patents

A kind of coal mine roadway burn cut eye increases prestige loading method Download PDF

Info

Publication number
CN103644788B
CN103644788B CN201310594090.7A CN201310594090A CN103644788B CN 103644788 B CN103644788 B CN 103644788B CN 201310594090 A CN201310594090 A CN 201310594090A CN 103644788 B CN103644788 B CN 103644788B
Authority
CN
China
Prior art keywords
blast hole
snubber
clay stemming
clay
stemming
Prior art date
Application number
CN201310594090.7A
Other languages
Chinese (zh)
Other versions
CN103644788A (en
Inventor
高明仕
赵一超
陈曦
卢全体
刘昂
Original Assignee
中国矿业大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中国矿业大学 filed Critical 中国矿业大学
Priority to CN201310594090.7A priority Critical patent/CN103644788B/en
Publication of CN103644788A publication Critical patent/CN103644788A/en
Application granted granted Critical
Publication of CN103644788B publication Critical patent/CN103644788B/en

Links

Abstract

A kind of coal mine roadway burn cut eye disclosed by the invention increases prestige charge constitution, is applicable to improve coal mine roadway burn cut quality, reduces boulder yield.Detonator and explosive are loaded the bottom of blast hole snubber, and payment to a porter is drawn outside blast hole, carry out blast hole shutoff with clay stemming; Described blast hole shutoff is divided into two sections of shutoff, and explosive in blast hole seals by the clay stemming one being first no less than 100mm with a section; Then load bubble bag in the blast hole after clay stemming one, then close blast hole snubber with clay stemming two after bubble bag, by real for snubber envelope.The clay stemming increased reduces confined space during explosive incipient detonation to the utmost, thus add the explosion first pressing of explosion gas, and then enhance the crushing effect of explosion gas to rock, increasing prestige is carried out in slotting effect in tunnel blasting, thus reduce the boulder yield of tunnel blasting, improve the blast hole utilization factor of tunnel blasting, improve slotting effect.

Description

A kind of coal mine roadway burn cut eye increases prestige loading method
Technical field
The present invention relates to a kind of coal mine roadway burn cut eye and increase prestige charge constitution, especially a kind of being applicable to strengthens the charge constitution that coal mine roadway burn cut eye breaks rock power, and this technology can reduce boulder yield effectively, and quick-fried heap is concentrated.
Background technology
The snubber charging means of current employing, snubber charge constitution adopts one section of clay stemming to close snubber, the stress wave that can not well utilize explosive charge to produce and detonation gas, make the useless dissipation in rock of a large amount of explosion energies, cause explosive service efficiency low, plasting damage effect is little, thus makes rock boulder yield high, casting distance is far away, and quick-fried heap is not concentrated.Therefore the charge constitution mode how designing snubber is particularly crucial.
Summary of the invention
The object of the invention is for Problems existing in prior art, the coal mine roadway burn cut eye providing a kind of method simple, easy to operate increases prestige charge constitution.
Coal mine roadway burn cut eye powder charge of the present invention increases prestige method, comprises bottom detonator and explosive being loaded blast hole snubber, payment to a porter is drawn outside blast hole, carry out blast hole shutoff with clay stemming; Described blast hole shutoff is divided into two sections of shutoff, and explosive in blast hole seals by the clay stemming one being first no less than 100mm with a section; Then load bubble bag in the blast hole after clay stemming one, then close blast hole snubber with clay stemming two after bubble bag, by real for snubber envelope, clay stemming two length setting closing snubber is as follows:
A, when the blast hole snubber degree of depth is 0.6 ~ 1.0m, closes clay stemming two length of blast hole snubber and must not be less than 1/2 of the blast hole snubber degree of depth;
B, when the blast hole snubber degree of depth is more than 1m, closing clay stemming two length of blast hole snubber must not be less than 0.5m;
C, when the blast hole snubber degree of depth is more than 2.5m, closing clay stemming two length of blast hole snubber must not be less than 1m.
Beneficial effect: the present invention is applicable to improve coal mine roadway burn cut quality, reduces boulder yield.Snubber is a circle borehole of innermost circle, and object first produces a vallecular cavity as second scope of freedom, the surface that rock contacts with air at working face, for other hole firing creates favorable conditions.In order to the energy making full use of snubber explosive carries out brokenly rock, throws rock, snubber charge constitution is in the past improved, adopts two envelope method snubbers to increase prestige charge constitution, make the charge constitution of snubber more reasonable, technique reduces the boulder yield of tunnel blasting, and quick-fried heap is concentrated.During powder charge, put to the bottom of snubber at explosive, adding one section of clay stemming is enclosed in bottom snubber by explosive, the clay stemming increased reduces confined space during explosive incipient detonation to the utmost, thus adds the explosion first pressing of explosion gas, and then enhances the crushing effect of explosion gas to rock, increasing prestige is carried out in slotting effect in tunnel blasting, thus reduce the boulder yield of tunnel blasting, improve the blast hole utilization factor of tunnel blasting, improve slotting effect.Solve the problem that explosive service efficiency is low, plasting damage effect is little existed in prior art well, reduce the boulder yield of coal mine roadway explosion, decrease throwing effect, and quick-fried heap can be made to concentrate, break by loading bubble bag when explosive charge and produce water curtain, effectively can play the effect of depositing dust.Its method is easy, easy to operate, has practicality widely.
Accompanying drawing explanation
Fig. 1 is that snubber of the present invention increases prestige charge constitution schematic diagram.
In figure: 1-detonator, 2-explosive, 3-clay stemming, 4-bubble bag, 5-clay stemming, 6-payment to a porter.
Detailed description of the invention
Below in conjunction with accompanying drawing, one embodiment of the present of invention are further described:
Coal mine roadway burn cut eye of the present invention increases prestige charge constitution, routinely to blast hole snubber, afterwards detonator 1 and explosive 2 is loaded the bottom of blast hole snubber, draws outside blast hole by payment to a porter 6, carry out blast hole shutoff with clay stemming; Described blast hole shutoff is divided into two sections of shutoff, first with one section of clay stemming 1 being no less than 100mm, explosive in blast hole 2 is enclosed in the bottom of snubber; Then in the blast hole after the clay stemming 1 being no less than 100mm, load bubble bag 4, bubble bag 4 breaks when explosive charge and produces water curtain, effectively can play the effect of depositing dust; After bubble bag 4, close blast hole snubber with clay stemming 25 again, by real for snubber envelope, clay stemming 25 length setting closing snubber is as follows:
A, when the blast hole snubber degree of depth is 0.6 ~ 1.0m, closes clay stemming 25 length of blast hole snubber and must not be less than 1/2 of the blast hole snubber degree of depth;
B, when the blast hole snubber degree of depth is more than 1m, closing clay stemming 25 length of blast hole snubber must not be less than 0.5m; Such as: when the degree of depth of blast hole snubber is 1.8m, then clay stemming 25 sealing clay length must not be less than 0.5m.
C, when the blast hole snubber degree of depth is more than 2.5m, closing clay stemming 25 length of blast hole snubber must not be less than 1m.

Claims (1)

1. coal mine roadway burn cut eye increases a prestige loading method, comprises bottom detonator (1) and explosive (2) being loaded blast hole snubber, payment to a porter (6) is drawn outside blast hole, carry out blast hole shutoff with clay stemming; It is characterized in that: described blast hole shutoff is divided into two sections of shutoff, first with one section of clay stemming one (3) being no less than 100mm, explosive in blast hole (2) is enclosed in the bottom of snubber; Then load bubble bag (4) in the blast hole after clay stemming one (3), bubble bag 4 breaks when explosive charge and produces water curtain, plays the effect of depositing dust; After bubble bag (4), close blast hole snubber with clay stemming two (5) again, by real for snubber envelope, clay stemming two (5) length setting closing snubber is as follows:
A, when the blast hole snubber degree of depth is 0.6 ~ 1.0m, closes clay stemming two (5) length of blast hole snubber and must not be less than 1/2 of the blast hole snubber degree of depth;
B, when the blast hole snubber degree of depth is more than 1m, closing clay stemming two (5) length of blast hole snubber must not be less than 0.5m;
C, when the blast hole snubber degree of depth is more than 2.5m, closing clay stemming two (5) length of blast hole snubber must not be less than 1m.
CN201310594090.7A 2013-11-21 2013-11-21 A kind of coal mine roadway burn cut eye increases prestige loading method CN103644788B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310594090.7A CN103644788B (en) 2013-11-21 2013-11-21 A kind of coal mine roadway burn cut eye increases prestige loading method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310594090.7A CN103644788B (en) 2013-11-21 2013-11-21 A kind of coal mine roadway burn cut eye increases prestige loading method

Publications (2)

Publication Number Publication Date
CN103644788A CN103644788A (en) 2014-03-19
CN103644788B true CN103644788B (en) 2016-02-10

Family

ID=50250041

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310594090.7A CN103644788B (en) 2013-11-21 2013-11-21 A kind of coal mine roadway burn cut eye increases prestige loading method

Country Status (1)

Country Link
CN (1) CN103644788B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103983146B (en) * 2014-05-16 2017-01-04 河南理工大学 A kind of hard hard-rock tunnel medium-length hole mixing wedge shape segment algorithm directional fracture Cut Blasting method
CN104374239B (en) * 2014-09-19 2016-03-02 葛洲坝易普力股份有限公司 A kind of shot hole blasting obstruction method
CN105674819B (en) * 2016-03-03 2017-10-10 秦健飞 A kind of aqueous medium transducing blasting method and its powder charge chamber

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102155890A (en) * 2011-01-24 2011-08-17 平顶山天安煤业股份有限公司十矿 Filling method used in deep hole loosening blasting pressure release
CN203216394U (en) * 2013-03-31 2013-09-25 永城煤电控股集团有限公司 Novel air column charging structure for deading periphery holes
CN203249554U (en) * 2013-05-21 2013-10-23 济宁矿业集团有限公司安居煤矿 Smooth blasting device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102155890A (en) * 2011-01-24 2011-08-17 平顶山天安煤业股份有限公司十矿 Filling method used in deep hole loosening blasting pressure release
CN203216394U (en) * 2013-03-31 2013-09-25 永城煤电控股集团有限公司 Novel air column charging structure for deading periphery holes
CN203249554U (en) * 2013-05-21 2013-10-23 济宁矿业集团有限公司安居煤矿 Smooth blasting device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
水不耦合装药结构在煤矿井巷掘进光面爆破中的应用;孙磊等;《爆破》;20100930;第27卷(第3期);第25页-第28页 *

Also Published As

Publication number Publication date
CN103644788A (en) 2014-03-19

Similar Documents

Publication Publication Date Title
US5106164A (en) Plasma blasting method
CN100390495C (en) Technology method of artificial frozen soil control blasting by deep surface forzen method
CN102678117B (en) Directional hydraulic fracturing method based on energizing blasting
CN103924956B (en) A kind of lump coal exploitation Advance presplitting method
CN105275443B (en) A kind of underground coal mine high power electric detonation shake auxiliary hydraulic fracturing anti-reflection method
CN101614135B (en) Drilling-explosion-pumping triadic gas extraction method
CN101813002B (en) Coal seam pre-splitting method based on gas extraction
MX346420B (en) Explosive pellet.
CN101644156B (en) Method for weakening coal-rock mass by hydraulic blasting and fracturing
CN102914226A (en) Hollow-hole rhombic parallel cut blasting damping method
CN102937399B (en) Stress relief blasting method based on ground stress transient release
CN103821516B (en) The method of secondary release preventing and treating bump
CN105370257B (en) A kind of coal bed gas well high power electric detonation shake auxiliary hydraulic fracturing method for increasing
CN103939144B (en) A kind of consecutive intervals cushion wall for closed large scale mined area
CN104088638B (en) Large-inclination-angle coal bed longwell large-mining-height working surface coal wall caving and roof fall control technology
CN102927867A (en) Vibration absorbing method for cut presplitting blasting
CN107478113B (en) A kind of UHV transmission line stake well one-pass molding blasting method
CN102080525A (en) High-pressure gas injection hole-drilling pressure-releasing outburst prevention method
CN104863628B (en) One kind utilizes the anti-reflection shielding coal roadway tunneling method of pulse detonation wave fracturing
CN104453904B (en) Kerve-free sublevel filling mining method
CN106197178B (en) A kind of new deep hole water pressure blasting demolition set and blasting method
WO2016165396A1 (en) Downhole coal seam pulse detonation wave directional fracturing permeability-increasing method
CN103267455A (en) Dam foundation one-step forming drilling blasting method by combining energy dissipation and energy collection of blast hole bottom
CN103334790A (en) High-pressure gas blasting-based coal seam roof advance presplitting method
CN101419041B (en) Deep hole blasting process in frost weathering bedrock segment

Legal Events

Date Code Title Description
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160210

Termination date: 20161121

CF01 Termination of patent right due to non-payment of annual fee