CN109341450A - A kind of Tunnel Blasting structure and Tunnel Blasting construction method - Google Patents
A kind of Tunnel Blasting structure and Tunnel Blasting construction method Download PDFInfo
- Publication number
- CN109341450A CN109341450A CN201811274309.4A CN201811274309A CN109341450A CN 109341450 A CN109341450 A CN 109341450A CN 201811274309 A CN201811274309 A CN 201811274309A CN 109341450 A CN109341450 A CN 109341450A
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- bore region
- periphery
- hole
- region
- auxiliary
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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
-
- 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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- General Engineering & Computer Science (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
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Abstract
The present invention relates to a kind of Tunnel Blasting structure, which includes top bar and gets out of a predicament or an embarrassing situation for hard rock region and the tunnel of periphery Nearby Structure, structures, including the short drilling depth section of up/down steps, the short drilling depth section of up/down steps；Top bar includes slotting bore region, the first auxiliary bore region for being located on keyhole area periphery and the first periphery bore region set on the first via hole area periphery, slotting bore region includes nine keyholes, and nine keyholes include five explosive holes, four emptying apertures；It is described to get out of a predicament or an embarrassing situation including the second auxiliary bore region, third auxiliary bore region and the second periphery hole region.The present invention also provides a kind of Tunnel Blasting construction method, step S10, burn cut bore regions；Step S20, explosion first assist bore region；Step S30, the first periphery of explosion bore region；Step S40, explosion second assist bore region；Step S50, explosion third assist bore region；Step S60, the second periphery hole of explosion region.The influence of structures of the present invention is minimized.
Description
Technical field
The present invention relates to the technical fields of Tunnel Engineering explosion, more specifically, be related to a kind of Tunnel Blasting structure and
Tunnel Blasting construction method.
Background technique
Currently, tunnel excavation construction does not encounter excavation route periphery inevitably, there are structures, corrugations, when tunnel excavation rock stratum
Preferably and periphery is there are when structures, and to guarantee not affect to structure structure, excavation technology engineering method can select static quick-fried
The excavation that the costs such as broken, hydraulic pressure demolition, presplit blasting, electronic detonator blasting are big, construction is cumbersome, this be significantly greatly increased tunnel excavation at
Sheet and risk management and control responsibility, and there are still great risks for tunnel excavation.
The above deficiency, has much room for improvement.
Summary of the invention
In order to overcome the shortcomings of existing technology, the present invention provides a kind of Tunnel Blasting structure and Tunnel Blasting construction party
Method.
Technical solution of the present invention is as described below:
A kind of Tunnel Blasting structure, the blasting arrangement are used for the tunnel of hard rock region and periphery Nearby Structure, structures,
Including the short drilling depth section of up/down steps, the short drilling depth section of up/down steps includes top bar and gets out of a predicament or an embarrassing situation；
The top bar include slotting bore region, be located on the keyhole area periphery first auxiliary bore region, with
And the first periphery bore region set on the first via hole area periphery, the slotting bore region include nine keyholes, nine
A keyhole includes for being equipped with five explosive holes of explosive, being used to form four emptying apertures of free face；
Described get out of a predicament or an embarrassing situation assists porose area including the second auxiliary bore region, the third set on second auxiliary bore region two sides
Domain and the second periphery hole region set on the third via hole areas outside.
Further, nine keyholes constitute the square matrix of three rows three column, five slottings on square matrix diagonal line
Hole is the explosive hole, remaining four keyhole is the emptying aperture.
Further, the spacing of the adjacent keyhole is 0.09m~0.1m.
Further, the first auxiliary bore region includes multiple first via holes, and the spacing of adjacent first via hole is
0.5m。
Further, first periphery bore region includes multiple first periphery holes, and the spacing of adjacent first periphery hole is
0.45~0.55m.
Further, the second auxiliary multiple second via holes of bore region, the spacing of adjacent second via hole is 0.5~
0.55m。
Further, the third assists the multiple third via holes of bore region, and the spacing of adjacent third via hole is 0.5~
0.55m。
Further, multiple second periphery holes in second periphery hole region, the spacing of adjacent second periphery hole is 0.5~
0.55m。
Further, the keyhole, first auxiliary the first via hole of bore region, first week of the first periphery bore region
Lateral opening, the second auxiliary bore region the second via hole, the third via hole of third auxiliary bore region and the second periphery hole region
The hole depth of the second periphery hole be 0.8m~1.0m, aperture 0.04m.
It is another object of the present invention to provide a kind of Tunnel Blasting construction methods characterized by comprising
Step S10, burn cut bore region, specifically: slotting bore region includes nine keyholes, wherein four keyholes
For emptying aperture, free face is formed, in addition five keyholes are explosive hole, are provided with explosive, and block tightly, five explosive holes are simultaneously
Detonation；
Step S20, explosion first assist bore region, specifically: multiple first via holes that the first auxiliary bore region includes
It detonates simultaneously；
Step S30, the first periphery of explosion bore region, specifically: multiple first periphery holes that the first periphery bore region includes
It detonates simultaneously；
Step S40, explosion second assist bore region, specifically: multiple second via holes that the second auxiliary bore region includes
It detonates simultaneously, forms free face after the second auxiliary bore region explosion；
Step S50, explosion third assist bore region, specifically: multiple second via holes that third auxiliary bore region includes
It detonates simultaneously；
Step S60, the second periphery hole of explosion region, specifically: multiple second periphery holes that the second periphery hole region includes
It detonates simultaneously.
According to the present invention of above scheme, the beneficial effect is that: the present invention point multiple regions are detonated respectively, to neighbouring structure
The influence for building object is minimized, and can carry out tunnel excavation face Cut Blasting, vibration frequency control within 1.2, thus
Free face is formed, digs and lays the foundation for subsequent low frequency；And above-mentioned blasting arrangement is used, the use of explosive can be reduced, more
Add convenient for scene control；It is identical to recycle pattern, operating personnel's working efficiency can be gradually increased, shorten the construction period, to reduce
Cost；The present invention can be along the tunnel excavation section for any hard rock and structures periphery, and limitation is small, easy to operate；This hair
Bright easy to operate, difficulty of construction is small, few using equipment, low production cost, can reach expected excavation effect with minimum investment.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is structures position relationship structural diagram of the invention；
Fig. 2 is Tunnel Blasting structural schematic diagram of the invention；
Fig. 3 is the structural schematic diagram of slotting bore region of the invention；
Fig. 4 is the structural schematic diagram of the first auxiliary bore region explosion of the invention；
Fig. 5 is the structural schematic diagram of the first periphery bore region explosion of the invention；
Fig. 6 is the structural schematic diagram of the second auxiliary bore region of the invention, third auxiliary bore region explosion；
Fig. 7 is Tunnel Blasting construction method structural schematic diagram of the invention.
Wherein, each appended drawing reference in figure:
1- structures；The short drilling depth section of 2- up/down steps；
21- top bar；22- gets out of a predicament or an embarrassing situation；
211- slotting bore region；212- first assists bore region；The first periphery 213- bore region；
2111- keyhole；21111- explosive hole；21112- emptying aperture；
The first via hole of 2121-；
The first periphery hole of 2131-；
221- second assists bore region；222- third assists bore region；The second periphery hole of 223- region；
The second via hole of 2211-；2221- third via hole；The second periphery hole of 2231-.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
It should be noted that be referred to as " being fixed on " or " being set to " another component when component, it can directly or
It is located on another component indirectly.When a component referred to as " is connected to " another component, it can be directly or
It is connected on another component in succession.Term " on ", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top",
The orientation or position of the instructions such as "bottom", "inner", "outside" are orientation based on the figure or position, are merely for convenience of describing,
It should not be understood as the limitation to the technical program.Term " first ", " second " are used merely to facilitate description purpose, and should not be understood as
Indication or suggestion relative importance or the quantity for implicitly indicating technical characteristic.The meaning of " plurality " is two or more,
Unless otherwise specifically defined.
It please refers to Fig.1 to Fig.3, a kind of Tunnel Blasting structure, the blasting arrangement is for hard rock region and building is closed on periphery
The tunnel of object, structures 1, including the short drilling depth section 2 of up/down steps, the short drilling depth section 2 of up/down steps include top bar 21 and get out of a predicament or an embarrassing situation
22；
Top bar 21 include slotting bore region 211, the first auxiliary bore region 212 for being located on the periphery of slotting bore region 211,
And the first periphery bore region 213 set on the first via hole area periphery, slotting bore region 211 include nine keyholes
2111, nine keyholes 2111 include for being equipped with five explosive holes 21111 of explosive, being used to form four emptying apertures of free face
21112；
Get out of a predicament or an embarrassing situation 22 include second auxiliary bore region 221, set on second auxiliary 221 two sides of bore region third assist porose area
Domain 222 and the second periphery hole region 223 on the outside of third auxiliary bore region 222.
Please refer to Fig. 2, referring to Fig. 3, preferably, nine keyholes 2111 constitute the square matrix of three rows three column, positioned at square matrix
Five keyholes 2111 on diagonal line are explosive hole 21111, remaining four keyhole 2111 is emptying aperture 21112.
Preferably, the spacing of adjacent keyhole 2111 is 0.09m~0.1m.
Preferably, the hole depth of keyhole 2111 is 0.8m~1.0m, aperture 0.04m.
In one embodiment, five 2111 parameters of keyhole are as shown in table 1:
Table 1
Please refer to Fig. 2, Fig. 4, it is preferable that first auxiliary bore region 212 include multiple first via holes 2121, adjacent first
The spacing of via hole 2121 is 0.5m.
Preferably, the hole depth of the first via hole 2121 is 0.8m~1.0m, aperture 0.04m.
In one embodiment, the parameter of each first via hole 2121 is as shown in table 2:
Table 2
Please refer to Fig. 2, referring to Fig. 5, preferably, the first periphery bore region 213 includes multiple first periphery holes 2131, phase
The spacing of adjacent first periphery hole 2131 is 0.45~0.55m.
Preferably, the hole depth of the first periphery hole 2131 is 0.8m~1.0m, aperture 0.04m.
In one embodiment, the parameter of each first periphery hole 2131 is as shown in table 3:
Table 3
Please refer to Fig. 2, referring to Fig. 6, preferably, second more than 221 the second via holes 2211 of auxiliary bore region, adjacent the
The spacing of two via holes 2211 is 0.5~0.55m.
Preferably, third assists a third via hole 2221 of bore region more than 222, and the spacing of adjacent third via hole 2221 is
0.5~0.55m.
Preferably, the second periphery hole 2231 of more than 223, the second periphery hole region, the spacing of adjacent second periphery hole 2231 are
0.5~0.55m
Preferably, the second via hole 2211, third via hole 2221, the second periphery hole 2231 hole depth be 0.8m~
1.0m, aperture 0.04m.
In one embodiment, each second via hole 2211, third via hole 2221, the second periphery hole 2231 parameter such as
Shown in table 4:
Table 4
Fig. 1 to Fig. 7 is please referred to, it is another object of the present invention to provide a kind of tunnel using Tunnel Blasting structure is quick-fried
Broken construction method, comprising:
Step S10, burn cut bore region 211, specifically: slotting bore region 211 includes nine keyholes 2111, wherein
Four keyholes 2111 are emptying aperture 21112, form free face, and in addition five keyholes 2111 are explosive hole 21111, are provided with fried
Medicine, and block tightly, five explosive holes 21111 are detonated simultaneously；
Step S20, explosion first assist bore region 212, specifically: first assists multiple first that bore region 212 includes
Via hole 2121 detonates simultaneously；
Step S30, the first periphery of explosion bore region 213, specifically: the first periphery bore region 213 include multiple first
Periphery hole 2131 detonates simultaneously；
Step S40, explosion second assist bore region 221, specifically: second assists multiple second that bore region 221 includes
Via hole 2211 detonates simultaneously, forms free face after the second auxiliary 221 explosion of bore region；
Step S50, explosion third assist bore region 222, specifically: third assists multiple second that bore region 222 includes
Via hole 22221 detonates simultaneously；
Step S60, the second periphery hole of explosion region 223, specifically: the second periphery hole region 223 include multiple second
Periphery hole 2231 detonates simultaneously.
Tunnel Blasting structure and Tunnel Blasting construction method provided by the invention have the beneficial effect that the multiple areas of the present invention point
Domain is detonated respectively, and the influence to neighbouring structures is minimized, and can carry out tunnel excavation face Cut Blasting, vibration frequency
Control is within 1.2, to form free face, digs and lays the foundation for subsequent low frequency；And above-mentioned blasting arrangement is used, it can
The use for reducing explosive, easily facilitates live control；It is identical to recycle pattern, operating personnel's working efficiency can be gradually increased,
It shortens the construction period, to reduce cost；The present invention can limit to along the tunnel excavation section for any hard rock and structures periphery
Property is small, easy to operate；The present invention is easy to operate, and difficulty of construction is small, low production cost few using equipment, can be reached with minimum investment
To expected excavation effect.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of Tunnel Blasting structure, it is characterised in that: the blasting arrangement is for hard rock region and periphery Nearby Structure, constructs
The tunnel of object, including the short drilling depth section of up/down steps, the short drilling depth section of up/down steps include top bar and get out of a predicament or an embarrassing situation；
The top bar includes slotting bore region, the first the auxiliary bore region, Yi Jishe for being located on the keyhole area periphery
In the first periphery bore region of the first via hole area periphery, the slotting bore region includes nine keyholes, and nine are drawn
Slot includes for being equipped with five explosive holes of explosive, being used to form four emptying apertures of free face；
It is described get out of a predicament or an embarrassing situation including second auxiliary bore region, set on it is described second auxiliary bore region two sides third auxiliary bore region,
And set on the second periphery hole region of the third via hole areas outside.
2. Tunnel Blasting structure as described in claim 1, it is characterised in that: nine keyholes constitute the side of three rows three column
Battle array, five keyholes on square matrix diagonal line are the explosive hole, remaining four keyhole is the emptying aperture.
3. Tunnel Blasting structure as described in claim 1, it is characterised in that: the spacing of the adjacent keyhole be 0.09m~
0.1m。
4. Tunnel Blasting structure as described in claim 1, it is characterised in that: the first auxiliary bore region includes multiple first
Via hole, the spacing of adjacent first via hole are 0.5m.
5. Tunnel Blasting structure as described in claim 1, it is characterised in that: first periphery bore region includes multiple first
Periphery hole, the spacing of adjacent first periphery hole are 0.45~0.55m.
6. Tunnel Blasting structure as described in claim 1, it is characterised in that: multiple second auxiliary of the second auxiliary bore region
Hole, the spacing of adjacent second via hole are 0.5~0.55m.
7. Tunnel Blasting structure as described in claim 1, it is characterised in that: the multiple third auxiliary of third auxiliary bore region
Hole, the spacing of adjacent third via hole are 0.5~0.55m.
8. Tunnel Blasting structure as described in claim 1, it is characterised in that: multiple second peripheries in second periphery hole region
Hole, the spacing of adjacent second periphery hole are 0.5~0.55m.
9. Tunnel Blasting structure as described in claim 1, it is characterised in that: the of the keyhole, the first auxiliary bore region
One via hole, the first periphery hole of the first periphery bore region, the second via hole of the second auxiliary bore region, third assist bore region
Third via hole and the hole depth of the second periphery hole in the second periphery hole region be 0.8m~1.0m, aperture 0.04m.
10. a kind of Tunnel Blasting construction method using Tunnel Blasting structure according to any one of claims 1 to 9, feature
It is, comprising:
Step S10, burn cut bore region, specifically: slotting bore region includes nine keyholes, wherein four keyholes are sky
Hole forms free face, and in addition five keyholes are explosive hole, is provided with explosive, and block tightly, five explosive holes are risen simultaneously
It is quick-fried；
Step S20, explosion first assist bore region, specifically: multiple first via holes that the first auxiliary bore region includes are simultaneously
Detonation；
Step S30, the first periphery of explosion bore region, specifically: multiple first periphery holes that the first periphery bore region includes are simultaneously
Detonation；
Step S40, explosion second assist bore region, specifically: multiple second via holes that the second auxiliary bore region includes are simultaneously
Detonation forms free face after the second auxiliary bore region explosion；
Step S50, explosion third assist bore region, specifically: multiple second via holes that third auxiliary bore region includes are simultaneously
Detonation；
Step S60, the second periphery hole of explosion region, specifically: multiple second periphery holes that the second periphery hole region includes are simultaneously
Detonation.
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| CN201811274309.4A CN109341450B (en) | 2018-10-30 | 2018-10-30 | Tunnel blasting structure and tunnel blasting construction method |
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| CN201811274309.4A CN109341450B (en) | 2018-10-30 | 2018-10-30 | Tunnel blasting structure and tunnel blasting construction method |
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| CN109341450A true CN109341450A (en) | 2019-02-15 |
| CN109341450B CN109341450B (en) | 2022-06-21 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813189A (en) * | 2019-03-01 | 2019-05-28 | 中铁十八局集团有限公司 | A kind of hard rock tunnel blasting digging method |
| CN110454172A (en) * | 2019-09-02 | 2019-11-15 | 中铁二十一局集团第五工程有限公司 | A kind of horizontal hole in tunnel and main tunnel intersection section constructing method and bench blasting method |
| CN110879026A (en) * | 2019-12-04 | 2020-03-13 | 四川大学 | Excavation and cut blasting method suitable for high-plasticity low-strength rock tunnel |
| CN112302673A (en) * | 2020-10-30 | 2021-02-02 | 何满潮 | Method for tunneling roadway by using instantaneous bursting device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101520292A (en) * | 2009-03-12 | 2009-09-02 | 路桥集团国际建设股份有限公司 | Method for excavating and blasting tunnel-type anchorage cavern |
| CN102494571A (en) * | 2011-12-11 | 2012-06-13 | 中建八局大连建设工程有限公司 | Construction method for damped blasting of tunnels |
| 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 |
| CN103541734A (en) * | 2013-11-01 | 2014-01-29 | 中铁四局集团有限公司 | Comprehensive blasting damping method for tunnel of underpass civil security building |
| CN105737699A (en) * | 2016-02-25 | 2016-07-06 | 中铁十八局集团有限公司 | Secondary blasting rapid excavation method for deep holes of steps on IV-V-grade surrounding rock of double-track tunnel |
| CN107060771A (en) * | 2016-12-28 | 2017-08-18 | 广东省长大公路工程有限公司 | Middle short tunnel is unidirectionally appeared excavation method |
| CN107063017A (en) * | 2016-12-24 | 2017-08-18 | 中铁十八局集团有限公司 | It is a kind of to reduce the empty eye mud vibration damping controlled blasting method in the tunnel of vibrations and noise |
| CN207095427U (en) * | 2017-08-11 | 2018-03-13 | 中铁四局集团有限公司 | Bilateral wedge cut distribution structure of extra-large section tunnel |
| CN108286920A (en) * | 2018-01-31 | 2018-07-17 | 中铁二十二局集团第工程有限公司 | A kind of implementation of Tunnel Blasting and excavation |
-
2018
- 2018-10-30 CN CN201811274309.4A patent/CN109341450B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101520292A (en) * | 2009-03-12 | 2009-09-02 | 路桥集团国际建设股份有限公司 | Method for excavating and blasting tunnel-type anchorage cavern |
| CN102494571A (en) * | 2011-12-11 | 2012-06-13 | 中建八局大连建设工程有限公司 | Construction method for damped blasting of tunnels |
| 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 |
| CN103541734A (en) * | 2013-11-01 | 2014-01-29 | 中铁四局集团有限公司 | Comprehensive blasting damping method for tunnel of underpass civil security building |
| CN105737699A (en) * | 2016-02-25 | 2016-07-06 | 中铁十八局集团有限公司 | Secondary blasting rapid excavation method for deep holes of steps on IV-V-grade surrounding rock of double-track tunnel |
| CN107063017A (en) * | 2016-12-24 | 2017-08-18 | 中铁十八局集团有限公司 | It is a kind of to reduce the empty eye mud vibration damping controlled blasting method in the tunnel of vibrations and noise |
| CN107060771A (en) * | 2016-12-28 | 2017-08-18 | 广东省长大公路工程有限公司 | Middle short tunnel is unidirectionally appeared excavation method |
| CN207095427U (en) * | 2017-08-11 | 2018-03-13 | 中铁四局集团有限公司 | Bilateral wedge cut distribution structure of extra-large section tunnel |
| CN108286920A (en) * | 2018-01-31 | 2018-07-17 | 中铁二十二局集团第工程有限公司 | A kind of implementation of Tunnel Blasting and excavation |
Non-Patent Citations (1)
| Title |
|---|
| 水利电力部水利水电建设总局组织编写: "《水利水电工程施工组织设计手册 第2卷 施工技术》", 28 February 1990 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813189A (en) * | 2019-03-01 | 2019-05-28 | 中铁十八局集团有限公司 | A kind of hard rock tunnel blasting digging method |
| CN109813189B (en) * | 2019-03-01 | 2021-03-30 | 中铁十八局集团有限公司 | Hard rock tunnel blasting excavation method |
| CN110454172A (en) * | 2019-09-02 | 2019-11-15 | 中铁二十一局集团第五工程有限公司 | A kind of horizontal hole in tunnel and main tunnel intersection section constructing method and bench blasting method |
| CN110454172B (en) * | 2019-09-02 | 2020-10-09 | 中铁二十一局集团第五工程有限公司 | Tunnel cross tunnel and main tunnel intersection construction method and bench blasting method |
| CN110879026A (en) * | 2019-12-04 | 2020-03-13 | 四川大学 | Excavation and cut blasting method suitable for high-plasticity low-strength rock tunnel |
| CN112302673A (en) * | 2020-10-30 | 2021-02-02 | 何满潮 | Method for tunneling roadway by using instantaneous bursting device |
| CN112302673B (en) * | 2020-10-30 | 2021-10-26 | 何满潮 | Method for tunneling roadway by using instantaneous bursting device |
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| CN109341450B (en) | 2022-06-21 |
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