CN107726933A - A kind of middle font strengthens slotting structure and cut shot method - Google Patents
A kind of middle font strengthens slotting structure and cut shot method Download PDFInfo
- Publication number
- CN107726933A CN107726933A CN201711055941.5A CN201711055941A CN107726933A CN 107726933 A CN107726933 A CN 107726933A CN 201711055941 A CN201711055941 A CN 201711055941A CN 107726933 A CN107726933 A CN 107726933A
- Authority
- CN
- China
- Prior art keywords
- snubber
- center line
- strengthens
- side snubber
- tunnel
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The present invention relates to rock mass in tunnel sinking and blasting field of engineering technology, including the borehole being distributed on blasting network, the borehole includes center cut eye (1), left side snubber (2) and right side snubber (3), the center cut eye (1) is uniformly distributed in tunnel face Middle face in middle font, and symmetrical center line overlaps with the center line (4) of tunnel tunnel face, the left side snubber (2) is on the left of the center line (4), and the right side snubber (3) is on the right side of the center line (4).The present invention strengthens snubber by font in increase and is used for solving that snubber orifice distance is excessive to cause the halfway shortcoming of explosion, improves Tunnel Blasting pick to a certain extent.
Description
Technical field
The present invention relates to rock mass in tunnel sinking and blasting field of engineering technology, more particularly to a kind of middle font to strengthen slotting structure
And cut shot method.
Background technology
In tunnel big gun pick driving, the structure of common reinforcement snubber is simple, and execute-in-place is easy, but this slotting structure exists
In the case that distance is little between snubber, demolition effect is good, and brisance is enough to blow the rock between snubber, and works as and draw
When in larger distance between slotted eyes, strengthen snubber using common, brisance is not enough to blow the rock between snubber, caused
Explosion resistance increases.
The content of the invention
The present invention provides a kind of middle font and strengthens slotting structure and cut shot method, solves using common to strengthen in the prior art
Snubber, brisance are not enough to blow the rock between snubber, the technical problem for causing explosion resistance to increase.
The purpose of the present invention is achieved through the following technical solutions：
A kind of middle font strengthens slotting structure, including the borehole being distributed on blasting network, the borehole are drawn including middle part
Slotted eyes 1, left side snubber 2 and right side snubber 3, the center cut eye 1 are uniformly distributed in tunnel tunnel face in middle font
Portion, and symmetrical center line overlaps with the center line 4 of tunnel tunnel face, the left side snubber 2 is located at the left side of center line 4, institute
Right side snubber 3 is stated located at the right side of center line 4.
A kind of middle font strengthens cut shot method, including：
The reinforcement snubber that font is distributed in being laid along tunnel piercing face center line；
Vertical equally distributed left side snubber and right side snubber are laid in center line arranged on left and right sides；
It is sequentially loaded into a water-saving bag, some section light bursting charges and thunder from the inside to surface in left side snubber and right side snubber
Pipe, a water-saving bag, and blocked with stemming；
Strengthening being sequentially loaded into a water-saving bag, some section emulsions and detonator, two water-saving bags in snubber from the inside to surface,
And blocked with stemming；
Line, confirm errorless rear detonation.
The embodiment of the present invention provides a kind of middle font and strengthens slotting structure, including the borehole being distributed on blasting network, institute
Stating borehole includes center cut eye 1, left side snubber 2 and right side snubber 3, and the center cut eye 1 is uniformly distributed in tunnel
Face center line 4, the left side snubber 2 are located at the center located at the left side of center line 4, the right side snubber 3
The right side of line 4, the center cut eye 1 are that middle font strengthens snubber.The present invention tunnels to Tunnel Blasting, can be between snubber
When spacing is excessive, obtain preferable demolition effect, can reduce snubber spacing it is excessive caused by influence, be same type lithology
Tunnel speedy drivage provides engineering reference.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the drilling schematic diagram of the tunnel tunnel face of the embodiment of the present invention.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is further detailed explanation.
The embodiments of the invention provide a kind of middle font to strengthen slotting structure, as shown in figure 1, including being distributed in blasting network
On borehole, the borehole includes center cut eye 1, left side snubber 2 and right side snubber 3, during the center cut eye 1 is in
Font is uniformly distributed in tunnel face Middle face, and symmetrical center line overlaps with the center line 4 of tunnel tunnel face, the left side slotting
Eye 2 is located at the left side of center line 4, and the right side snubber 3 is located at the right side of center line 4.
Wherein, the quantity of the center cut eye 1 is 8, is uniformly distributed four along center line 4, the both sides of center line 4 are symmetrical
Two pairs of distribution；The quantity of left side snubber 2 is 5, is uniformly distributed in the left side of center line 4 vertically；The right side slotting
3 quantity of eye are 5, are uniformly distributed in the right side of center line 4 vertically.
Spacing between the center cut eye 1 is 25-40cm.
Spacing between the left side snubber 2 is 25-40cm.
Spacing between the right side snubber 3 is 25-40cm.Using appropriate snubber pitch of holes, enable to draw
Groove large area avalanche, free space and the scope of freedom are provided for the rock of follow-up avalanche, middle font strengthens snubber and plays enhancing slotting
Effect, initial free is provided for snubber explosion.
Light bursting charge is filled with the left side snubber 2 and the right side snubber 3.
Emulsion is filled with the center cut eye 1.
The embodiment of the present invention provides a kind of middle font and strengthens slotting structure, including the borehole being distributed on blasting network, institute
Stating borehole includes center cut eye 1, left side snubber 2 and right side snubber 3, and the center cut eye 1 uniformly divides in middle font
Tunnel face Middle face is distributed in, and symmetrical center line overlaps with the center line 4 of tunnel tunnel face, the left side snubber 2 is located at institute
The left side of center line 4 is stated, the right side snubber 3 is located at the right side of center line 4.The present invention strengthens slotting by font in increase
Ophthalmically acceptable snubber orifice distance is excessive to cause the halfway shortcoming of explosion solving, and improves Tunnel Blasting pick to a certain extent.
The embodiment of the present invention additionally provides a kind of middle font and strengthens cut shot method, including：
Step 101, the reinforcement snubber that font is distributed along the laying of tunnel piercing face center line；
Step 102, in center line arranged on left and right sides lay vertical equally distributed left side snubber and right side snubber；
Step 103, to be sequentially loaded into left side snubber and right side snubber a water-saving bag, some section light from the inside to surface quick-fried
Explosive and detonator, a water-saving bag, and blocked with stemming；
Step 104, strengthen snubber in be sequentially loaded into from the inside to surface a water-saving bag, it is some section emulsion and detonator,
Two water-saving bags, and blocked with stemming；
Step 105, line, confirm errorless rear detonation.
The step 105 includes：
From segment blast, i.e., font is distributed in first explosion reinforcement snubber, then snubber and right side on the left of explosion
Snubber.Font strengthens snubber first in explosion, and rock loosens after strengthening snubber explosion, and stretching force reduces, then explosion
Snubber.
The present invention is described in detail above, principle and embodiment party of the specific case used herein to the present invention
Formula is set forth, and the explanation of above example is only intended to help the method and its core concept for understanding the present invention；It is meanwhile right
In those of ordinary skill in the art, according to the thought of the present invention, change is had in specific embodiments and applications
Part, in summary, this specification content should not be construed as limiting the invention.
Claims (9)
1. a kind of middle font strengthens slotting structure, it is characterised in that including the borehole being distributed on blasting network, the borehole bag
Center cut eye (1), left side snubber (2) and right side snubber (3) are included, the center cut eye (1) is uniformly divided in middle font
Tunnel face Middle face is distributed in, and symmetrical center line overlaps with the center line (4) of tunnel tunnel face, the left side snubber (2) sets
On the left of the center line (4), the right side snubber (3) is on the right side of the center line (4).
2. middle font according to claim 1 strengthens slotting structure, it is characterised in that the number of the center cut eye (1)
Measure as 8, be uniformly distributed four along center line (4), symmetrical two pairs of center line (4) both sides；Left side snubber (2) number
Measure as 5, be uniformly distributed in vertically on the left of the center line (4)；Right side snubber (3) quantity is 5, vertical uniformly to divide
It is distributed on the right side of the center line (4).
3. middle font according to claim 2 strengthens slotting structure, it is characterised in that between the center cut eye (1)
Spacing be 25-40cm.
4. middle font according to claim 2 strengthens slotting structure, it is characterised in that between the left side snubber (2)
Spacing be 25-40cm.
5. middle font according to claim 2 strengthens slotting structure, it is characterised in that between the right side snubber (3)
Spacing be 25-40cm.
6. middle font according to claim 2 strengthens slotting structure, it is characterised in that the left side snubber (2) and institute
State in right side snubber (3) and be filled with light bursting charge.
7. middle font according to claim 2 strengthens slotting structure, it is characterised in that is filled out in the center cut eye (1)
Equipped with emulsion.
8. a kind of middle font strengthens cut shot method, it is characterised in that including：
The reinforcement snubber that font is distributed in being laid along tunnel piercing face center line；
Vertical equally distributed left side snubber and right side snubber are laid in center line arranged on left and right sides；
Be sequentially loaded into from the inside to surface in left side snubber and right side snubber a water-saving bag, it is some section light bursting charge and detonator,
One water-saving bag, and blocked with stemming；
Strengthening being sequentially loaded into a water-saving bag, some section emulsions and detonator, two water-saving bags in snubber from the inside to surface, be used in combination
Stemming blocks；
Line, confirm errorless rear detonation.
9. middle font according to claim 8 strengthens cut shot method, it is characterised in that the line, confirms errorless rear
It is quick-fried, including：
From segment blast, i.e., the reinforcement snubber of font distribution in first explosion, then snubber and right side slotting on the left of explosion
Eye.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711055941.5A CN107726933B (en) | 2017-10-27 | 2017-10-27 | A kind of middle font reinforces slotting structure and cut shot method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711055941.5A CN107726933B (en) | 2017-10-27 | 2017-10-27 | A kind of middle font reinforces slotting structure and cut shot method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107726933A true CN107726933A (en) | 2018-02-23 |
| CN107726933B CN107726933B (en) | 2019-12-03 |
Family
ID=61221169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711055941.5A Active CN107726933B (en) | 2017-10-27 | 2017-10-27 | A kind of middle font reinforces slotting structure and cut shot method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107726933B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747643A (en) * | 2020-12-29 | 2021-05-04 | 中铁十四局集团建筑工程有限公司 | IV-level surrounding rock blasting method suitable for drilling of three-arm rock drilling jumbo |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5634691A (en) * | 1994-07-13 | 1997-06-03 | Sungkyong Engineering & Construction Limited | Method for excavating a working face by blasting |
| CN101349533A (en) * | 2008-08-05 | 2009-01-21 | 山东科技大学科技产业总公司 | Dip laneway digging hole layout mode |
| KR20120034328A (en) * | 2010-10-01 | 2012-04-12 | 흥도이엔지 주식회사 | Blast method for center hole of tunnel |
| CN102914226A (en) * | 2012-11-08 | 2013-02-06 | 中国矿业大学(北京) | Hollow-hole rhombic parallel cut blasting damping method |
| CN103557758A (en) * | 2013-11-01 | 2014-02-05 | 中铁四局集团有限公司 | Expanded excavation region hole inside and outside combined delayed regional differential blasting network in tunnel blasting |
| CN103615941A (en) * | 2013-12-11 | 2014-03-05 | 中铁二十三局集团有限公司 | Method for blasting shallow section of modernization railway tunnel |
| CN103983146A (en) * | 2014-05-16 | 2014-08-13 | 河南理工大学 | Medium-length hole mixed wedge cut blasting method capable of realizing directed fracture using cutting cartridge bag for solid rock roadway |
| 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 |
| CN204177294U (en) * | 2014-03-31 | 2015-02-25 | 江西稀有金属钨业控股集团有限公司 | A kind of road driving undercut blast hole structure |
| CN104613830A (en) * | 2014-12-18 | 2015-05-13 | 招金矿业股份有限公司夏甸金矿 | One-time-formed smooth blasting method for laneway |
| CN104864782A (en) * | 2015-05-16 | 2015-08-26 | 周忠国 | Hard stone drift composite reinforcing vertical wedge cutting method |
| 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 |
-
2017
- 2017-10-27 CN CN201711055941.5A patent/CN107726933B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5634691A (en) * | 1994-07-13 | 1997-06-03 | Sungkyong Engineering & Construction Limited | Method for excavating a working face by blasting |
| CN101349533A (en) * | 2008-08-05 | 2009-01-21 | 山东科技大学科技产业总公司 | Dip laneway digging hole layout mode |
| KR20120034328A (en) * | 2010-10-01 | 2012-04-12 | 흥도이엔지 주식회사 | Blast method for center hole of tunnel |
| CN102914226A (en) * | 2012-11-08 | 2013-02-06 | 中国矿业大学(北京) | Hollow-hole rhombic parallel cut blasting damping method |
| CN103557758A (en) * | 2013-11-01 | 2014-02-05 | 中铁四局集团有限公司 | Expanded excavation region hole inside and outside combined delayed regional differential blasting network in tunnel blasting |
| CN103615941A (en) * | 2013-12-11 | 2014-03-05 | 中铁二十三局集团有限公司 | Method for blasting shallow section of modernization railway tunnel |
| CN204177294U (en) * | 2014-03-31 | 2015-02-25 | 江西稀有金属钨业控股集团有限公司 | A kind of road driving undercut blast hole structure |
| CN103983146A (en) * | 2014-05-16 | 2014-08-13 | 河南理工大学 | Medium-length hole mixed wedge cut blasting method capable of realizing directed fracture using cutting cartridge bag for solid rock roadway |
| 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 |
| CN104613830A (en) * | 2014-12-18 | 2015-05-13 | 招金矿业股份有限公司夏甸金矿 | One-time-formed smooth blasting method for laneway |
| CN104864782A (en) * | 2015-05-16 | 2015-08-26 | 周忠国 | Hard stone drift composite reinforcing vertical wedge cutting method |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747643A (en) * | 2020-12-29 | 2021-05-04 | 中铁十四局集团建筑工程有限公司 | IV-level surrounding rock blasting method suitable for drilling of three-arm rock drilling jumbo |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107726933B (en) | 2019-12-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105333778B (en) | Medium-deep hole large-section composite cut blasting structure and method | |
| CN108007285B (en) | A kind of efficient Cut Blasting method of stone head deep hole sublevel segmentation | |
| CN102808622B (en) | Method for recovering ore pillar by medium-length hole and deep hole combined blasting technology | |
| CN109029168B (en) | Blasting treatment method for underground suspended roof | |
| CN106091848B (en) | It is a kind of to realize overlength, the method for high inclination-angle tunnel anchorage top bar explosion | |
| CN102494571A (en) | Construction method for damped blasting of tunnels | |
| CN105823386B (en) | The blasting demolishing method of reinforced concrete brace in a kind of foundation ditch | |
| CN114166082B (en) | Tunnel advanced drilling hole combination accurate control blasting structure and construction process | |
| CN104482816B (en) | A kind of vertical periphery segment algorithm gradient presplit blasting method and device | |
| CN112013733B (en) | Blast hole arrangement blasting method for dealing with complex surrounding rock conditions | |
| CN106895751A (en) | A kind of medium-length hole blasting calculating method | |
| CN111397451B (en) | Strip mine high-step large-aperture buffer blasting method | |
| CN105466290A (en) | Cutting excavation blasting method | |
| CN105606000A (en) | Partition control blasting method for tunnel rock drilling project | |
| CN109870081A (en) | A kind of narrow-bore tunnel cut shot method for adding guiding shock relieve vent | |
| CN107560510A (en) | A kind of tunnel big cross section section constructing method and its face blast arrangement | |
| CN107726933B (en) | A kind of middle font reinforces slotting structure and cut shot method | |
| CN105043176B (en) | A kind of small wedge shot shock-dampening method of multistage | |
| CN106895752A (en) | A kind of stratiform phosphorite ore body tunnel deep hole sinking and blasting method | |
| CN109974545B (en) | Medium-length hole blasting suspended roof processing method in sublevel caving method | |
| CN110455137B (en) | Extrahole differential networking construction method for vibration reduction blasting of underground excavation tunnel | |
| CN104790950B (en) | Optimized mining middle-deep blasthole millisecond blasting slot cutting method | |
| CN107655369A (en) | A kind of I-shaped reinforcement slotting structure and cut shot method | |
| CN107843160B (en) | Detonating network for blasting demolition of reinforced concrete support beam of deep foundation pit | |
| CN210570271U (en) | Cut hole structure for tunnel blasting tunneling engineering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |