CN107883822A - One kind strengthens slotting correction structure and cut shot method - Google Patents
One kind strengthens slotting correction structure and cut shot method Download PDFInfo
- Publication number
- CN107883822A CN107883822A CN201711055885.5A CN201711055885A CN107883822A CN 107883822 A CN107883822 A CN 107883822A CN 201711055885 A CN201711055885 A CN 201711055885A CN 107883822 A CN107883822 A CN 107883822A
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- snubber
- correction
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- depth
- reinforcement
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Classifications
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- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The present invention relates to rock mass in tunnel sinking and blasting field of engineering technology, discloses a kind of reinforcement slotting correction structure and cut shot method, including：Tunnel center line vallecular cavity midpoint is arranged vertically two apart from bottom plate specified distance and strengthens snubber (1), three pairs of main snubbers (2) and two pairs of correction snubbers (3) are arranged symmetrically in described reinforcement snubber (1) both sides, form compound reinforcement vertical wedge cut, the main snubber (2) is that aperture spacing is big, the closely spaced wedge shape of bottom hole, the longitudinal section of the correction snubber (3) is rectangle, and the cross section of the main snubber (2) is isosceles trapezoid；The depth for strengthening snubber (1) is less than the depth of the correction snubber (3), and the depth of the correction snubber (3) is less than the depth of main snubber (2).The present invention can reduce caused by tunnel width is larger or formation hardness is larger that explosion is undesirable, reach preferable demolition effect, work for the Tunnel Blasting tunneling construction of same type and provide reference.
Description
Technical field
The present invention relates to rock mass in tunnel sinking and blasting field of engineering technology, more particularly to it is a kind of strengthen slotting correction structure and
Cut shot method.
Background technology
In Tunnel Blasting tunneling construction, V-cut mode is used more, be the operation letter because this cutting method is easy
It is single, but when tunnel width is larger or formation hardness is larger, blasting efficiency is often undesirable.The main reason for this problem is to draw
Groove is difficult, and the quality of slotting decides blasting efficiency, and good cutting method can improve demolition effect, improves explosion effect
Rate.
The content of the invention
The present invention provides a kind of reinforcement slotting correction structure and cut shot method, solves V-cut mode in the prior art and works as
Tunnel width is larger or when formation hardness is larger, blasting efficiency often undesirable technical problem.
The purpose of the present invention is achieved through the following technical solutions：
One kind strengthens slotting correction structure, including：Tunnel center line vallecular cavity midpoint is apart from the vertical cloth of bottom plate specified distance
Two reinforcement snubbers 1 are put, three pairs of main snubbers 2 and two pairs of correction snubbers are arranged symmetrically in reinforcement snubber 1 both sides
3, compound reinforcement vertical wedge cut is formed, the main snubber 2 is that aperture spacing is big, and the closely spaced wedge shape of bottom hole is described to change
The longitudinal section of positive snubber 3 is rectangle, and the cross section of the main snubber 2 is isosceles trapezoid；The reinforcement snubber 1
Depth is less than the depth of the correction snubber 3, and the depth of the correction snubber 3 is less than the depth of main snubber 2.
A kind of cut shot method for strengthening slotting correction structure, including：
Draw center line, strengthen snubber, main snubber and the location and shape for correcting snubber；
Same millisecond blasting strengthens snubber and main snubber；
After strengthening snubber and main snubber explosion, explosion correction snubber.
The present invention provides a kind of reinforcement slotting correction structure and cut shot method, according to.
The present invention can be reduced because tunnel width is larger or rock using the cutting method for strengthening snubber and correction snubber
Explosion caused by hardness is larger is undesirable, reaches preferable demolition effect, is carried for the Tunnel Blasting tunneling construction work of same type
For 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 that the structural representation of structure is corrected in a kind of reinforcement slotting 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.
As shown in figure 1, structure is corrected for a kind of reinforcement slotting provided in an embodiment of the present invention, including：Tunnel center wire casing
Chamber midpoint is arranged vertically two reinforcement snubbers 1 apart from bottom plate specified distance, is arranged symmetrically in reinforcement snubber 1 both sides
Three pairs of main snubbers 2 and two pairs of correction snubbers 3, form compound reinforcement vertical wedge cut, the main snubber 2 is between aperture
Away from big, the closely spaced wedge shape of bottom hole, the longitudinal section of the correction snubber 3 is rectangle, and the cross section of the main snubber 2 is equal
For isosceles trapezoid；The depth for strengthening snubber 1 is less than the depth of the correction snubber 3, the depth of the correction snubber 3
Depth of the degree less than main snubber 2.
Wherein, the reinforcement snubber 1 overlaps with tunnel center line, and depth is 2.0~3.5m.
Aperture spacing between the main snubber 2 is 2.4~4.0m, and bottom hole spacing is 0.2m, the main snubber 2
Depth is 3.0~5.0m.
The aperture spacing of the correction snubber 3 and main snubber 2 is 0.1m.
The depth for strengthening snubber 1 is 2.0~3.0m, and the depth of the main snubber 2 is 3.0~5.0m, described
The depth for correcting snubber 3 is 2.5~4.0m.
The aperture base angle strengthened snubber 1 and correct snubber 3 is 90 °, the aperture base angle of the main snubber 2
For 65 °~70 °.
The present invention can be reduced because tunnel width is larger or rock using the cutting method for strengthening snubber and correction snubber
Explosion caused by hardness is larger is undesirable, reaches preferable demolition effect, is carried for the Tunnel Blasting tunneling construction work of same type
For reference.
The embodiment of the present invention additionally provides a kind of cut shot method for strengthening slotting correction structure, including：
Draw center line, strengthen snubber 1, main snubber 2 and the location and shape for correcting snubber 3；
Same millisecond blasting strengthens snubber 1 and main snubber 2；
After strengthening snubber 1 and the explosion of main snubber 2, explosion correction snubber 3.
Wherein, the reinforcement snubber 1 and main snubber 2 select two sections of blasting cap initiations, and correction snubber 3 is risen using four sections
It is quick-fried.
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 (8)
1. one kind strengthens slotting correction structure, it is characterised in that including：Tunnel center line vallecular cavity midpoint is apart from bottom plate specific range
Place be arranged vertically two strengthen snubbers (1), it is described reinforcement snubber (1) both sides be arranged symmetrically three pairs of main snubbers (2) and
Two pairs of correction snubbers (3), compound reinforcement vertical wedge cut is formed, the main snubber (2) is that aperture spacing is big, between bottom hole
Away from small wedge shape, the longitudinal section of the correction snubber (3) is rectangle, and the cross section of the main snubber (2) is isosceles
It is trapezoidal；The depth for strengthening snubber (1) is less than the depth of the correction snubber (3), the depth of the correction snubber (3)
Depth of the degree less than main snubber (2).
2. reinforcement slotting correction structure according to claim 1, it is characterised in that the reinforcement snubber (1) and tunnel
Center line overlaps, and depth is 2.0~3.5m.
3. reinforcement slotting correction structure according to claim 1, it is characterised in that the hole between the main snubber (2)
Mouth spacing is 2.4~4.0m, and bottom hole spacing is 0.2m, and the depth of the main snubber (2) is 3.0~5.0m.
4. reinforcement slotting correction structure according to claim 1, it is characterised in that the correction snubber (3) is drawn with master
The aperture spacing of slotted eyes (2) is 0.1m.
5. reinforcement slotting correction structure according to claim 1, it is characterised in that the depth for strengthening snubber (1)
For 2.0~3.0m, the depth of the main snubber (2) is 3.0~5.0m, the depth of the correction snubber (3) for 2.5~
4.0m。
6. reinforcement slotting correction structure according to claim 1, it is characterised in that the reinforcement snubber (1) and correction
The aperture base angle of snubber (3) is 90 °, and the aperture base angle of the main snubber (2) is 65 °~70 °.
A kind of 7. cut shot method for strengthening slotting correction structure, it is characterised in that including：
Draw center line, strengthen the location and shape of snubber (1), main snubber (2) and correction snubber (3)；
Same millisecond blasting strengthens snubber (1) and main snubber (2)；
After strengthening snubber (1) and main snubber (2) explosion, explosion correction snubber (3).
8. the cut shot method according to claim 8 for strengthening slotting correction structure, it is characterised in that the reinforcement snubber
(1) and main snubber (2) selects two sections of blasting cap initiations, and correction snubber (3) is using four sections of detonations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711055885.5A CN107883822B (en) | 2017-10-27 | 2017-10-27 | A kind of reinforcement slotting correction structure and cut shot method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711055885.5A CN107883822B (en) | 2017-10-27 | 2017-10-27 | A kind of reinforcement slotting correction structure and cut shot method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107883822A true CN107883822A (en) | 2018-04-06 |
| CN107883822B CN107883822B (en) | 2019-12-03 |
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| CN201711055885.5A Active CN107883822B (en) | 2017-10-27 | 2017-10-27 | A kind of reinforcement slotting correction structure and cut shot method |
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Citations (12)
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|---|---|---|---|---|
| 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 |
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| 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 CN201711055885.5A patent/CN107883822B/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 |
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| Publication number | Publication date |
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| CN107883822B (en) | 2019-12-03 |
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