CN101349533A - Dip laneway digging hole layout mode - Google Patents

Dip laneway digging hole layout mode Download PDF

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Publication number
CN101349533A
CN101349533A CNA2008101387783A CN200810138778A CN101349533A CN 101349533 A CN101349533 A CN 101349533A CN A2008101387783 A CNA2008101387783 A CN A2008101387783A CN 200810138778 A CN200810138778 A CN 200810138778A CN 101349533 A CN101349533 A CN 101349533A
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China
Prior art keywords
holes
eye
auxiliary
wedge
cut holes
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CNA2008101387783A
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Chinese (zh)
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CN101349533B (en
Inventor
王洪立
张宪堂
陈士海
周红敏
鲍伟
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SCIENCE TECHNOLOGY INDUSTRY CO SHANDONG SCIENCE AND TECHNOLOGY UNIV
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SCIENCE TECHNOLOGY INDUSTRY CO SHANDONG SCIENCE AND TECHNOLOGY UNIV
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Priority to CN2008101387783A priority Critical patent/CN101349533B/en
Publication of CN101349533A publication Critical patent/CN101349533A/en
Application granted granted Critical
Publication of CN101349533B publication Critical patent/CN101349533B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention discloses a mine downhill roadway tunnelling shot hole arrangement way, which comprises cut holes, auxiliary holes, a peripheral hole and a bottom hole, wherein the cut holes are in a wedge arrangement way, and are arranged on the middle upper portion of a roadway cross section, wherein the pitch of two rows of wedge cut holes is larger 30% than the pitch of current wedge cut holes, a row of auxiliary straight holes are arranged between two rows of wedge cut holes, and the width of the auxiliary straight hole is 0.5 time than that of the cut holes, and a row of auxiliary throwing holes are further arranged under the two rows of the cut holes, and the drilling direction of the auxiliary throwing holes is drilled to the oblique upper portion in smaller than 90 degrees with the roadway cross section, and the auxiliary throwing holes are finally detonated with the bottom hole in the same section. The invention fully utilizes the least resistance line principle, reasonably distributes the wedge cut holes, and increases the blasting efficiency and tunnelling velocity.

Description

A kind of dip laneway digging hole layout mode
Technical field
The invention belongs to the mining excavation technology, especially the drill eye blasting method.
Background technology
In coal mining, open up a large amount of underground passages, generally all adopt drilling and blasting method.Borehole generally is divided into snubber, reliever, periphery hole, end eye; Arrangement is, the drift section middle and lower part is a snubber, be reliever (or claiming avalanche eye) around the snubber, and it is periphery hole that section top and two is helped on the outline line, and the base outline line is an end eye.Because the tunnel belongs to the explosion of single scope of freedom, snubber is the key of demolition effect.The type of arrangement of snubber is a lot, comprises V-cut eye (being the V-arrangement slotting), cone cut eye and fan cut eye.Wherein the V-cut eye is made up of two row's inclined holes, and two row's spacings are decided according to the section size, are generally 0.5-1.0 rice, though these cutting methods application are many, blasting efficiency promptly bores 2 meters borehole all below 85%, about 1.7 meters of length of shot.Especially the working face blast hole utilization factor of go-downhill roadway is lower, and quick-fried heap can not be dished out on request after the explosion, be deposited on the working face, had a strong impact on raking loader work, thereby increased the engineering time of concerned process steps, break the normal construction circulation, cause existing tunneling construction speed can not satisfy construction period.Therefore reasonable Arrangement borehole mode is the key that addresses the above problem.
Summary of the invention
The present invention can not effectively cast the working face problem aside for solving the low and quick-fried back of go-downhill roadway driving blasting efficiency sillar, proposes a kind of new borehole arrangement.
A kind of dip laneway digging hole layout mode, it comprises snubber, reliever, periphery hole and end eye, snubber is the wedge-shaped arrangement mode, it is characterized in that, snubber is arranged in the drift section middle and upper part, and wherein the existing V-cut eye spacing of gap ratio of two row's V-cut eyes is big by 30%, arranges the auxiliary straight eye of a row between two rows, the degree of depth of auxiliary straight eye is 0.5 times of snubber, is used for broken large rock mass; Two rows arrange that delegation assist the throwing eye below the snubbers again, and auxiliary throwing eye jewel hole direction is with drift section<90 ° of angles creep into obliquely upward, throw the slag distance to strengthen the throwing effect to rock, to increase, and section detonate at last together with end eye.
Good effect of the present invention is: make full use of the minimum burden principle, increase two row's wedge shapes and draw a spacing, with the broken scope of freedom of increase to rock, thereby form bigger vallecular cavity, improve blasting efficiency.The V-cut eye is arranged in the middle and upper part, arrange to go up the auxiliary throwing eye that creeps on tiltedly below, and detonate at last with section with end eye, thereby the thrown direction of sillar after the change explosion, quick-fried heap is beneficial to raking loader work away from operating surface after making explosion, for follow-up explosion provides the better scope of freedom, thereby accelerate cyclic advance, improve driving speed.
Description of drawings
Fig. 1 is a borehole cross sectional plane layout drawing of the present invention;
Fig. 2 is the sectional drawing of 20-13-11-1-4-18-19 gunfire eye among Fig. 1;
Fig. 3 is the sectional drawing of 26-8-2-15-13 gunfire eye among Fig. 1.
The specific embodiment
Embodiment is an inclination angle W=23 ° a go-downhill roadway.Driving borehole arrangement as shown in Figure 1-Figure 3.As can be seen from Figure 1 it is furnished with 49 boreholes altogether, wherein is the auxiliary straight eye of slotting, the dark h=0.8-1.0 rice of eye 1-3 number; Two rows are arranged in the drift section middle and upper part for the V-cut eye about being divided into for 4-7 number and 8-11 number, two row's spacing a=1.0-1.2 rice; Be auxiliary throwing eye 12-19 number, jewel hole direction and section are the angle of γ=85 ° and creep into obliquely upward; 20-32 number is periphery hole, be evenly arranged in that section two is helped and the overhead pulley profile on; 33-39 number is end eye, is evenly distributed on the section bottom wheel profile; All the other unnumbered boreholes are reliever, are evenly arranged on the space between snubber and the periphery.

Claims (1)

1, a kind of dip laneway digging hole layout mode, it comprises snubber, reliever, periphery hole and end eye, snubber is the wedge-shaped arrangement mode, it is characterized in that, snubber is arranged in the drift section middle and upper part, wherein the existing V-cut eye spacing of gap ratio of two row's V-cut eyes is big by 30%, arranges the auxiliary straight eye of a row between two rows, and the degree of depth of auxiliary straight eye is 0.5 times of snubber; Two rows arrange that delegation assist the throwing eye below the snubbers again, and auxiliary throwing eye jewel hole direction is with drift section<and 90 ° of angles creep into obliquely upward, and detonate at last for same section with end eye.
CN2008101387783A 2008-08-05 2008-08-05 Dip laneway digging hole layout mode Expired - Fee Related CN101349533B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2008101387783A CN101349533B (en) 2008-08-05 2008-08-05 Dip laneway digging hole layout mode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2008101387783A CN101349533B (en) 2008-08-05 2008-08-05 Dip laneway digging hole layout mode

Publications (2)

Publication Number Publication Date
CN101349533A true CN101349533A (en) 2009-01-21
CN101349533B CN101349533B (en) 2011-07-27

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CN2008101387783A Expired - Fee Related CN101349533B (en) 2008-08-05 2008-08-05 Dip laneway digging hole layout mode

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101936690A (en) * 2010-08-30 2011-01-05 中铁十九局集团有限公司 Duplex-type wedge-shaped cut and graded construction technology thereof
CN101936689A (en) * 2010-08-30 2011-01-05 中铁十九局集团第五工程有限公司 Vibration isolation loading embrasure and loading method
CN102230768A (en) * 2011-06-08 2011-11-02 中煤第七十一工程处 High-efficiency inclined shaft tunneling blasting method for red clay
CN102338601A (en) * 2011-11-02 2012-02-01 中铁隧道集团有限公司 Shot hole single-shot shock-absorbing blast construction method applied to tunnel wedge cut
CN102538601A (en) * 2012-01-11 2012-07-04 云南文山斗南锰业股份有限公司 Method for blasting marine sedimentary deposit
CN102607342A (en) * 2012-02-27 2012-07-25 薛世忠 Blasting method controlling damage of damage rings of tunnel
CN102607343A (en) * 2012-02-27 2012-07-25 薛世忠 Tunnel blasting excavation method
CN103063094A (en) * 2013-02-04 2013-04-24 山东科技大学 Channeling method in rapid roadway explosion
CN103075933A (en) * 2012-06-06 2013-05-01 中铁十一局集团有限公司 Large-wedge-shaped multi-repeated cutting groove construction process
CN103123247A (en) * 2013-01-07 2013-05-29 重庆建工集团股份有限公司 Damping blasting method for steep dip small crossing angle layered surrounding rock small-distance tunnel excavation
CN104101270A (en) * 2014-07-08 2014-10-15 华侨大学 Medium-length hole blasting and cutting method in underground construction
CN104180729A (en) * 2014-08-20 2014-12-03 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 Method for arrangement of blast holes of driving working face of driving trolley and detonator grading
CN106225613A (en) * 2016-08-25 2016-12-14 中铁十局集团第三工程有限公司 A kind of efficient segmentation method of ignition in tunnel excavating process
CN107655369A (en) * 2017-10-27 2018-02-02 成都大学 A kind of I-shaped reinforcement slotting structure and cut shot method
CN107726933A (en) * 2017-10-27 2018-02-23 成都大学 A kind of middle font strengthens slotting structure and cut shot method
CN107883822A (en) * 2017-10-27 2018-04-06 成都大学 One kind strengthens slotting correction structure and cut shot method
CN110331981A (en) * 2019-06-19 2019-10-15 贵州开磷有限责任公司 A kind of roadway segmentation system of attack
CN110879027A (en) * 2019-12-04 2020-03-13 四川达竹煤电(集团)有限责任公司柏林煤矿 Efficient energy-gathered blasting rapid tunneling method for half coal rock roadway
CN112161534A (en) * 2020-10-16 2021-01-01 重庆大学 One-step mining control blasting method for mine underground upward access

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR970007384B1 (en) * 1994-07-13 1997-05-08 Sunkyong Const Co Method for excavating a working face
KR100358780B1 (en) * 1999-10-30 2002-10-30 강대우 Tunnel Blasting Method for using Air Tube
CN100390495C (en) * 2004-03-10 2008-05-28 马芹永 Technology method of artificial frozen soil control blasting by deep surface forzen method

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101936690A (en) * 2010-08-30 2011-01-05 中铁十九局集团有限公司 Duplex-type wedge-shaped cut and graded construction technology thereof
CN101936689A (en) * 2010-08-30 2011-01-05 中铁十九局集团第五工程有限公司 Vibration isolation loading embrasure and loading method
CN102230768A (en) * 2011-06-08 2011-11-02 中煤第七十一工程处 High-efficiency inclined shaft tunneling blasting method for red clay
CN102338601A (en) * 2011-11-02 2012-02-01 中铁隧道集团有限公司 Shot hole single-shot shock-absorbing blast construction method applied to tunnel wedge cut
CN102538601A (en) * 2012-01-11 2012-07-04 云南文山斗南锰业股份有限公司 Method for blasting marine sedimentary deposit
CN102538601B (en) * 2012-01-11 2015-05-06 云南文山斗南锰业股份有限公司 Method for blasting marine sedimentary deposit
CN102607342A (en) * 2012-02-27 2012-07-25 薛世忠 Blasting method controlling damage of damage rings of tunnel
CN102607343A (en) * 2012-02-27 2012-07-25 薛世忠 Tunnel blasting excavation method
CN102607342B (en) * 2012-02-27 2016-06-22 薛世忠 A kind of tunnel damage circle destroys controlled blasting method
CN102607343B (en) * 2012-02-27 2015-12-16 薛世忠 A kind of tunnel blasting excavation method
CN103075933B (en) * 2012-06-06 2015-03-11 中铁十一局集团有限公司 Large-wedge-shaped multi-repeated cutting groove construction process
CN103075933A (en) * 2012-06-06 2013-05-01 中铁十一局集团有限公司 Large-wedge-shaped multi-repeated cutting groove construction process
CN103123247A (en) * 2013-01-07 2013-05-29 重庆建工集团股份有限公司 Damping blasting method for steep dip small crossing angle layered surrounding rock small-distance tunnel excavation
CN103063094A (en) * 2013-02-04 2013-04-24 山东科技大学 Channeling method in rapid roadway explosion
CN104101270A (en) * 2014-07-08 2014-10-15 华侨大学 Medium-length hole blasting and cutting method in underground construction
CN104180729A (en) * 2014-08-20 2014-12-03 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 Method for arrangement of blast holes of driving working face of driving trolley and detonator grading
CN106225613A (en) * 2016-08-25 2016-12-14 中铁十局集团第三工程有限公司 A kind of efficient segmentation method of ignition in tunnel excavating process
CN106225613B (en) * 2016-08-25 2018-05-22 中铁十一局集团第三工程有限公司 A kind of efficient segmentation method of ignition in tunnel excavating process
CN107883822A (en) * 2017-10-27 2018-04-06 成都大学 One kind strengthens slotting correction structure and cut shot method
CN107726933A (en) * 2017-10-27 2018-02-23 成都大学 A kind of middle font strengthens slotting structure and cut shot method
CN107655369A (en) * 2017-10-27 2018-02-02 成都大学 A kind of I-shaped reinforcement slotting structure and cut shot method
CN107883822B (en) * 2017-10-27 2019-12-03 成都大学 A kind of reinforcement slotting correction structure and cut shot method
CN107655369B (en) * 2017-10-27 2020-01-07 成都大学 I-shaped reinforced cut structure and cut method
CN110331981A (en) * 2019-06-19 2019-10-15 贵州开磷有限责任公司 A kind of roadway segmentation system of attack
CN110879027A (en) * 2019-12-04 2020-03-13 四川达竹煤电(集团)有限责任公司柏林煤矿 Efficient energy-gathered blasting rapid tunneling method for half coal rock roadway
CN112161534A (en) * 2020-10-16 2021-01-01 重庆大学 One-step mining control blasting method for mine underground upward access
CN112161534B (en) * 2020-10-16 2022-06-03 重庆大学 One-step mining control blasting method for mine underground upward access

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Granted publication date: 20110727

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