CN111238328B - Compound peripheral eye and tunnel efficient vibration reduction and smooth surface smooth bottom blasting method - Google Patents

Compound peripheral eye and tunnel efficient vibration reduction and smooth surface smooth bottom blasting method Download PDF

Info

Publication number
CN111238328B
CN111238328B CN202010133437.8A CN202010133437A CN111238328B CN 111238328 B CN111238328 B CN 111238328B CN 202010133437 A CN202010133437 A CN 202010133437A CN 111238328 B CN111238328 B CN 111238328B
Authority
CN
China
Prior art keywords
holes
hole
tunnel
peripheral
smooth
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.)
Active
Application number
CN202010133437.8A
Other languages
Chinese (zh)
Other versions
CN111238328A (en
Inventor
张馨
刘飞香
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway 18th Bureau Group Co Ltd
Original Assignee
China Railway 18th Bureau Group Co Ltd
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 China Railway 18th Bureau Group Co Ltd filed Critical China Railway 18th Bureau Group Co Ltd
Priority to CN202010133437.8A priority Critical patent/CN111238328B/en
Publication of CN111238328A publication Critical patent/CN111238328A/en
Priority to JP2020133546A priority patent/JP7102669B2/en
Application granted granted Critical
Publication of CN111238328B publication Critical patent/CN111238328B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42DBLASTING
    • F42D1/00Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/08Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42DBLASTING
    • F42D3/00Particular applications of blasting techniques
    • F42D3/04Particular applications of blasting techniques for rock blasting

Abstract

The invention discloses a compound peripheral eye, which comprises a plurality of peripheral deep eyes and a plurality of peripheral short eyes, wherein the depth direction of the peripheral deep eyes is inclined relative to the contour line of a tunnel, and the peripheral short eyes are arranged on the contour line of the tunnel; the peripheral deep hole adopts an uncoupled spaced charge structure. The invention also discloses a tunnel efficient vibration reduction and smooth surface smooth bottom blasting method, which comprises the following steps: the method comprises the following steps that a wedge-shaped compound cut is adopted for cutting in a tunnel, a plurality of middle cut holes, inner ring holes, auxiliary holes, bottom plate holes and compound peripheral holes are arranged, and the number of the middle cut holes, the inner ring holes, the compound peripheral holes, the auxiliary holes and the bottom plate holes is determined according to the size of the tunnel; the middle cut hole, the inner ring hole and the bottom plate hole are all of continuous charging structures. The efficient vibration reduction and smooth surface smooth bottom blasting method for the tunnel provided by the invention has the advantages that the blasting circulation footage is increased to 5.0m on the premise that the drilling depth and the loading amount are basically unchanged, and meanwhile, the construction safety risk is reduced.

Description

Compound peripheral eye and tunnel efficient vibration reduction and smooth surface smooth bottom blasting method
Technical Field
The invention relates to the technical field of tunnel blasting, in particular to a high-efficiency vibration reduction and smooth surface smooth bottom blasting method for compound peripheral holes and tunnels.
Background
With the rapid development of urban rail transit, tunnel construction is more and more. The existing tunnel blasting is mostly a full-section drilling and blasting method, and has the following defects: (1) the smooth blasting effect is not well controlled, the local over-excavation is more, and the secondary supplementary blasting is needed when the other places are underexcavated; (2) the blasting footage is limited to 3.8-4.2 m, and is difficult to break through 4.5 m; (3) although the cutting hole is deep, the utilization rate of blast holes is low, and is about 80%; (4) the blasting vibration is large, the loose circle of surrounding rock is large, the number of local falling blocks is large, and the safety risk is high.
Disclosure of Invention
The invention aims to provide a compound peripheral hole and tunnel efficient vibration reduction and smooth surface bare-bottom blasting method, which aims to solve the problems in the prior art, and under the premise that the drilling depth and the charge amount are basically unchanged, the blasting circulation footage is increased to 5.0m, meanwhile, the overbreak is controlled, the blasting vibration is reduced, the loose circle of surrounding rock is reduced, the self-stabilization time of the surrounding rock is increased, and the construction safety risks such as vault chipping and the like are reduced.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a compound peripheral eye which comprises a plurality of peripheral deep eyes and a plurality of peripheral short eyes, wherein the depth direction of the peripheral deep eyes is inclined relative to the contour line of a tunnel, and the peripheral short eyes are arranged on the contour line of the tunnel.
Preferably, the number of the peripheral deep eyes is two, the number of the peripheral short eyes is one, and the two peripheral deep eyes are respectively positioned at two sides of the peripheral short eyes.
Preferably, the peripheral deep hole adopts a non-coupling spaced loading structure, the peripheral deep hole is sequentially provided with a detonator, a first explosive roll, a first stemming, a detonating cord, a second explosive roll and a second stemming from the hole bottom to the hole opening, a gap is reserved between the second explosive roll and the second stemming, the detonator is connected with the detonating tube, and the detonator is connected with the second explosive roll through the detonating cord.
The invention also provides a tunnel efficient vibration reduction and smooth surface and smooth bottom blasting method, which comprises the following steps:
(1) the method comprises the following steps that a wedge-shaped compound cut is adopted for cutting in a tunnel, a plurality of middle cut holes, inner ring holes, bottom plate holes, auxiliary holes and compound peripheral holes are arranged, and the number of the middle cut holes, the inner ring holes, the compound peripheral holes, the auxiliary holes and the bottom plate holes is determined according to the size of the tunnel;
(2) the middle cut hole, the inner ring hole and the bottom plate hole are all of continuous charging structures;
(3) two explosive rolls are arranged at the bottom of the auxiliary hole, and the opening of the auxiliary hole is plugged by stemming;
(4) one end of each of the middle cut hole, the inner ring hole, the compound peripheral holes, the auxiliary holes and the bottom plate holes is tightly attached to a tunnel face, and the tunnel face is a plane perpendicular to the length direction of the tunnel;
(5) the explosives in the middle cut hole, the inner ring hole, the compound peripheral hole, the auxiliary hole and the bottom plate hole are all positioned at one end close to the tunnel face;
(6) stemming clinging to the explosive is arranged in the middle cut hole, the inner ring hole, the compound peripheral holes, the auxiliary holes and the bottom plate holes, and the stemming is located between the face and the explosive.
Preferably, a full-computerized three-arm drill jumbo is adopted for drilling, the adopted explosive is a No. 2 rock emulsion explosive, and the adopted detonator is a non-electric millisecond detonator.
Preferably, the cut hole is filled with explosive at the bottom of the hole, and the space in the cut hole except the explosive is completely filled with stemming.
Preferably, the baseplate eye is elongated and has an inclination.
Preferably, the length of each of the first stemming and the second stemming is 0.8m, and the length of each of the stemming in the auxiliary hole is 0.8 m.
Preferably, the number of the middle cutting holes is 4, the depth of the middle cutting holes is 3.0m, the number of the cutting holes is 78, the depth of the cutting holes is 5.5m, the number of the inner ring holes is 96, the depth of the inner ring holes is 5.2m, the number of the auxiliary holes is 48, the depth of the auxiliary holes is 5.0m, and the number of the bottom plate holes is 36, and the depth of the auxiliary holes is 5.5 m.
Compared with the prior art, the compound peripheral eye and tunnel high-efficiency vibration reduction and smooth surface light bottom blasting method has the following technical effects:
the compound peripheral hole and tunnel efficient vibration reduction and smooth surface bare-bottom blasting method provided by the invention has the advantages that on the premise that the drilling depth and the loading amount are basically unchanged, the blasting circulation footage is increased to 5.0m, meanwhile, the overbreak is controlled, the blasting vibration is reduced, the loose circle of the surrounding rock is reduced, the self-stabilization time of the surrounding rock is increased, and the construction safety risks such as vault chipping and the like are reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of a compound peripheral eye of the present invention;
FIG. 2 is a schematic view of a perimeter deep-hole charge configuration in a compound peripheral hole of the present invention;
FIG. 3 is a schematic diagram of arrangement of blastholes in the tunnel high-efficiency vibration reduction and smooth-surface bare-bottom blasting method of the invention;
fig. 4 is a schematic view of a slotted hole in the tunnel efficient vibration reduction and smooth-surface bare-bottom blasting method according to the embodiment of the present invention;
wherein: 1-peripheral deep hole, 2-contour line, 3-peripheral short hole, 4-detonator, 5-first explosive cartridge, 6-first stemming, 7-detonating cord, 8-second explosive cartridge, 9-second stemming and 10-detonating tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The invention aims to provide a compound peripheral hole and tunnel efficient vibration reduction and smooth surface bare-bottom blasting method, which aims to solve the problems in the prior art, and under the premise that the drilling depth and the charge amount are basically unchanged, the blasting circulation footage is increased to 5.0m, meanwhile, the overbreak is controlled, the blasting vibration is reduced, the loose circle of surrounding rock is reduced, the self-stabilization time of the surrounding rock is increased, and the construction safety risks such as vault chipping and the like are reduced.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1 to 4: the compound peripheral eye of this embodiment includes two peripheral deep eyes 1 and a peripheral short eye 3, two peripheral deep eyes 1 are located the both sides of peripheral short eye 3 respectively, the relative outline 2 slope of the relative tunnel of the depth direction of peripheral deep eye 1, peripheral short eye 3 sets up on the outline 2 in tunnel, the effect of peripheral short eye 3, lie in remedying peripheral deep eye 1 because of the restriction of platform truck operation arm, there is certain distance in the position of boring the eye and outline 2, therefore the deep eye has a small angle to outline 2, the short eye is beaten on outline 2 as far as possible, reduce the blasting blind area, make peripheral eye light explosion effect better.
The peripheral deep hole 1 adopts a non-coupling spaced loading structure, a detonator 4, a first explosive roll 5, a first stemming 6, a detonating cord 7, a second explosive roll 8 and a second stemming 9 are sequentially arranged in the peripheral deep hole 1 from the hole bottom to the hole opening, a gap is formed between the second explosive roll 8 and the second stemming 9, the detonator 4 is connected with a detonating tube 10, the detonator 4 is connected with the second explosive roll 8 through the detonating cord 7, the lengths of the first stemming 6 and the second stemming 9 are both 0.8m and are divided into 2 sections of stemming, so that the explosives are not detonated simultaneously, a short detonation propagation delay is realized, the detonation impact force is reduced, the vibration damping effect is good, the damage to surrounding rocks is small, and the smooth surface forming effect is improved; the air column between the second explosive roll 8 and the second stemming 9 relieves the impact of the instantaneous increase of the explosive stress wave on the surrounding rock, so that the self-stability of the surrounding rock is improved; the second stemming 9 in the hole prolongs the blasting action time, fully plays the tangential stretching action of the explosive stress wave and ensures the smooth blasting effect. The two aspects are combined, and the high-efficiency vibration reduction smooth blasting is realized.
The embodiment also provides a tunnel efficient vibration reduction and smooth surface smooth bottom blasting method:
(1) the method comprises the following steps that a wedge-shaped compound cut is adopted for cutting in a tunnel, a plurality of middle cut holes, inner ring holes, auxiliary holes, bottom plate holes and compound peripheral holes are arranged, and the number of the middle cut holes, the inner ring holes, the compound peripheral holes, the auxiliary holes and the bottom plate holes is determined according to the size of the tunnel;
(2) the middle cut hole, the inner ring hole and the bottom plate hole are all in a continuous charging structure;
(3) two explosive rolls are arranged at the bottom of the auxiliary hole, the hole opening of the auxiliary hole is plugged by stemming, and the length of the stemming in the auxiliary hole is 0.8 m;
(4) one end of each of the middle cut hole, the inner ring hole, the compound peripheral holes, the auxiliary holes and the bottom plate holes is tightly attached to a tunnel face, and the tunnel face is a plane perpendicular to the length direction of the tunnel;
(5) the explosives in the middle cut hole, the inner ring hole, the compound peripheral holes, the auxiliary holes and the bottom plate holes are all positioned at one end close to the tunnel face;
(6) the middle cut hole, the inner ring hole, the compound peripheral holes, the auxiliary holes and the bottom plate holes are all provided with stemming tightly attached to the explosive, and the stemming is positioned between the face and the explosive.
In the tunnel efficient vibration reduction and smooth-surface smooth-bottom blasting method, a fully-computerized three-arm drill jumbo is adopted for drilling, the adopted explosive is a No. 2 rock emulsion explosive, and the adopted detonator 4 is a non-electric millisecond detonator.
In the tunnel efficient vibration reduction and smooth-surface smooth-bottom blasting method, the smooth-surface blasting effect is ensured by the compound peripheral holes and the charging structure thereof; the smooth bottom blasting effect is ensured by the measures that the bottoms of all blastholes basically fall on the same vertical plane, and the powder is charged to the bottom and the stemming is blocked; the efficient blasting footage mainly comprises the cutting holes, the auxiliary holes and the bottom holes, wherein the cutting holes, the auxiliary holes and the bottom holes are made of blocking materials of two umbrella-shaped middle stemming, friction force is increased, the movement speed of the stemming in blasting is reduced, particularly, explosives are filled in the cutting holes at the bottoms of the holes, and the spaces except the explosives in the cutting holes are completely filled with the stemming, so that hole bottom blasting force is increased, the acting time of blasting stress at the bottoms of the holes is obviously prolonged, the blasting footage is improved to 5.0m from 4.2m, the depth of residual holes is reduced, and efficient blasting of ultra-deep holes is realized.
According to the tunnel efficient vibration reduction and smooth-surface bare-bottom blasting method, the bottom plate hole is lengthened and inclined, and finally, blasting is carried out, so that on one hand, secondary collision is carried out on full-section blasted rocks, secondary rock crushing is facilitated under the condition of explosive reduction, on the other hand, slag can be properly thrown outwards, the blasted rocks are not concentrated on the tunnel face, the slag can be directly loaded into a transport vehicle by a side-dumping type slag loader without an excavator, the slag discharging speed is accelerated, and the mechanical use cost is reduced; the number of the middle cutting holes is 4, the depth of the middle cutting holes is 3.0m, the number of the middle cutting holes is 78, the depth of the middle cutting holes is 5.5m, the number of the inner ring holes is 96, the depth of the inner ring holes is 5.2m, the number of the auxiliary holes is 48, the depth of the auxiliary holes is 5.0m, and the number of the bottom plate holes is 36, the depth of the bottom plate holes is 5.5 m.
In the tunnel efficient vibration reduction and smooth-surface smooth-bottom blasting method, the bottoms of the middle cut hole, the inner ring hole, the compound peripheral holes, the auxiliary holes and the bottom plate holes are tightly attached to and perpendicular to the tunnel face, the explosive is arranged on the eye ground, and stemming tightly attached to the explosive is arranged to achieve the effect of smooth-bottom blasting, so that the blasted tunnel face is kept basically flat, the measurement and setting-out of a new tunnel face after blasting, the marking-out of the position of the hole of the blast hole and the accurate determination of the drill rod (drill bit) before the blast are facilitated, the quality of the blast hole is ensured to meet the requirements, and the rest is done in the same way, and a virtuous cycle is formed.
Referring to a table 1 and a table 2, the method for efficient vibration-damping and smooth-surface smooth-bottom blasting of the tunnel in the embodiment realizes full-section ultra-deep-hole vibration-damping smooth-surface smooth-bottom blasting by innovating a charging structure and a blocking stemming structure, the blasting footage is improved to 4.8-5.0 m from the original 3.8-4.2 m under the condition that the depth and the charging amount of the blast hole are basically unchanged, and the utilization rate of the blast hole is improved to (96-100)% from the original (76-84)%. The construction speed is increased from 60-90 meters per month to 100-130 meters per month. By binding the compound peripheral holes and the air columns for filling powder at intervals and filling stemming at intervals by the air columns, the ultra-short excavation is effectively controlled, the vibration of the surrounding rock is reduced, the muck is reduced, the amount of sprayed concrete is reduced, the self-stabilization time of the surrounding rock is especially prolonged, and the safety risks of falling blocks, even collapse and the like are reduced. Practice proves that the explosive consumption per meter of tunnel is reduced from 132.4-146.3 Kg to 115-119.8 Kg, the 4 consumption per meter of tunnel detonator is reduced from 80.7-89.2 to 75-78.1, the explosive is saved, the cost is reduced obviously, the slag and the sprayed concrete are reduced, and the economic benefit is obvious.
Figure GDA0003693431990000061
Figure GDA0003693431990000071
TABLE 1 Duplex peripheral eye high-efficiency vibration-damping blasting parameter table
Figure GDA0003693431990000072
Figure GDA0003693431990000081
TABLE 2 Duplex peripheral eye high-efficiency vibration-damping blasting result watch
In the description of the present invention, it should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.

Claims (7)

1. A compound peripheral eye, characterized by: the tunnel contour line comprises a plurality of peripheral deep eyes and a plurality of peripheral short eyes, wherein the depth direction of the peripheral deep eyes is inclined relative to the contour line of the tunnel, and the peripheral short eyes are arranged on the contour line of the tunnel; the number of the peripheral deep eyes is two, the number of the peripheral short eyes is one, and the two peripheral deep eyes are respectively positioned at two sides of the peripheral short eyes; the peripheral deep hole adopts the non-coupling interval charge structure, peripheral deep hole has set gradually detonator, first explosive roll, first stemming, detonating cord, second explosive roll and second stemming from the hole bottom to the drill way, the second explosive roll with the interval has between the second stemming, the detonator is connected with the detonating tube, the detonator passes through the detonating cord with the second explosive roll is connected.
2. A tunnel efficient vibration reduction and smooth surface and smooth bottom blasting method is characterized in that:
(1) adopting a wedge-shaped compound cut for cutting in the tunnel, and arranging a plurality of middle cut holes, inner ring holes, bottom plate holes, auxiliary holes and the compound peripheral holes of claim 1, wherein the number of the middle cut holes, the inner ring holes, the compound peripheral holes, the auxiliary holes and the bottom plate holes is determined according to the size of the tunnel;
(2) the middle cut hole, the inner ring hole and the bottom plate hole are of continuous charging structures;
(3) two explosive rolls are arranged at the bottom of the auxiliary hole, and the opening of the auxiliary hole is plugged by stemming;
(4) one end of each of the middle cut hole, the inner ring hole, the compound peripheral holes, the auxiliary holes and the bottom plate holes is tightly attached to a tunnel face, and the tunnel face is a plane perpendicular to the length direction of the tunnel;
(5) the explosives in the middle cut hole, the inner ring hole, the compound peripheral hole, the auxiliary hole and the bottom plate hole are all positioned at one end close to the tunnel face;
(6) stemming clinging to the explosive is arranged in the middle cut hole, the inner ring hole, the compound peripheral holes, the auxiliary holes and the bottom plate holes, and the stemming is located between the face and the explosive.
3. The efficient vibration reduction and smooth-surface smooth-bottom blasting method for the tunnel according to claim 2, characterized in that: and drilling by adopting a full-computerized three-arm drill jumbo, wherein the adopted explosive is a No. 2 rock emulsion explosive, and the adopted detonator is a non-electric millisecond detonator.
4. The efficient vibration reduction and smooth-surface smooth-bottom blasting method for the tunnel according to claim 2, characterized in that: the explosive is filled at the bottom of the cut hole, and the blast hole is filled with stemming except the explosive.
5. The efficient vibration reduction and smooth-surface smooth-bottom blasting method for the tunnel according to claim 2, characterized in that: the bottom plate hole is lengthened and has inclination.
6. The efficient vibration reduction and smooth-surface smooth-bottom blasting method for the tunnel according to claim 2, characterized in that: the length of the first stemming and the length of the second stemming are both 0.8m, and the length of the stemming in the auxiliary hole is 0.8 m.
7. The efficient vibration reduction and smooth-surface smooth-bottom blasting method for the tunnel according to claim 2, characterized in that: the quantity of middle undercut eye is 4, the degree of depth is 3.0m, the quantity of undercut eye is 78, the degree of depth is 5.5m, the quantity of inner circle eye is 96, the degree of depth is 5.2m, the quantity of supplementary eye is 48, dark 5.0m, the quantity of bottom plate eye is 36, dark 5.5 m.
CN202010133437.8A 2020-03-02 2020-03-02 Compound peripheral eye and tunnel efficient vibration reduction and smooth surface smooth bottom blasting method Active CN111238328B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202010133437.8A CN111238328B (en) 2020-03-02 2020-03-02 Compound peripheral eye and tunnel efficient vibration reduction and smooth surface smooth bottom blasting method
JP2020133546A JP7102669B2 (en) 2020-03-02 2020-08-06 High-efficiency vibration reduction of double peripheral holes and tunnels and smooth surface and bottom blasting methods

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010133437.8A CN111238328B (en) 2020-03-02 2020-03-02 Compound peripheral eye and tunnel efficient vibration reduction and smooth surface smooth bottom blasting method

Publications (2)

Publication Number Publication Date
CN111238328A CN111238328A (en) 2020-06-05
CN111238328B true CN111238328B (en) 2022-08-02

Family

ID=70862181

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010133437.8A Active CN111238328B (en) 2020-03-02 2020-03-02 Compound peripheral eye and tunnel efficient vibration reduction and smooth surface smooth bottom blasting method

Country Status (2)

Country Link
JP (1) JP7102669B2 (en)
CN (1) CN111238328B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112161534B (en) * 2020-10-16 2022-06-03 重庆大学 One-step mining control blasting method for mine underground upward access
CN112880500B (en) * 2021-01-29 2022-03-11 中交路桥北方工程有限公司 Wall protection smooth blasting method for tunnel weak surrounding rock based on double-layer peripheral hole arrangement
CN112902775B (en) * 2021-02-05 2022-09-23 中铁十八局集团有限公司 Tunnel excavation profile surface blasting forming method for reducing drilling external insertion angle
CN112880497A (en) * 2021-03-12 2021-06-01 中铁二十局集团有限公司 Tunnel smooth blasting method
CN113834394A (en) * 2021-09-29 2021-12-24 中电建路桥集团有限公司 Method for controlling over-excavation in tunnel drilling and blasting construction
CN114320309A (en) * 2021-11-02 2022-04-12 台州市市政公用工程质量安全事务中心 Protection mechanism for tunnel construction
CN114109396B (en) * 2021-11-27 2023-09-15 四川省交通建设集团股份有限公司 Super-long deep-buried tunnel excavation method applying three-arm rock drilling trolley and smooth blasting
CN114427813A (en) * 2021-12-21 2022-05-03 中南大学 Hard rock tunnel presplitting smooth surface combined blasting structure and method for reducing blasting vibration
CN115468463B (en) * 2022-06-20 2023-06-20 西南交通大学 Blasting construction method for controlling super-undermining

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102506622A (en) * 2011-11-02 2012-06-20 中铁隧道集团有限公司 Full-face blasting vibration control construction method for tunnel electronic millisecond electric detonator
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
CN104613831A (en) * 2015-01-19 2015-05-13 中铁十八局集团有限公司 Construction method for additionally forming periphery auxiliary holes in periphery of vertical shaft periphery hole
CN204827462U (en) * 2015-08-03 2015-12-02 中交第一公路工程局有限公司 Water pressure blasting snubber construction auxiliary platform
CN107957222A (en) * 2017-11-28 2018-04-24 武汉大学 Reduce blasthole spaced loading and the method for ignition of methods of blasting toes in open generation rate
CN108007285A (en) * 2017-12-05 2018-05-08 中国矿业大学(北京) A kind of stone head deep hole sublevel is segmented efficient Cut Blasting method
KR20190105446A (en) * 2018-03-05 2019-09-17 강대우 Lock blasting method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11324559A (en) * 1998-05-19 1999-11-26 Shimizu Corp Peripheral control blasting construction method
KR100554944B1 (en) * 2003-09-19 2006-03-03 정동호 A method for reducing over-break to the minimum
FI123573B (en) 2006-12-22 2013-07-15 Sandvik Mining & Constr Oy Procedure and software product for the preparation of a drilling plan and a rock drilling rig
JP2009228977A (en) 2008-03-24 2009-10-08 Toda Constr Co Ltd Blasting construction method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102506622A (en) * 2011-11-02 2012-06-20 中铁隧道集团有限公司 Full-face blasting vibration control construction method for tunnel electronic millisecond electric detonator
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
CN104613831A (en) * 2015-01-19 2015-05-13 中铁十八局集团有限公司 Construction method for additionally forming periphery auxiliary holes in periphery of vertical shaft periphery hole
CN204827462U (en) * 2015-08-03 2015-12-02 中交第一公路工程局有限公司 Water pressure blasting snubber construction auxiliary platform
CN107957222A (en) * 2017-11-28 2018-04-24 武汉大学 Reduce blasthole spaced loading and the method for ignition of methods of blasting toes in open generation rate
CN108007285A (en) * 2017-12-05 2018-05-08 中国矿业大学(北京) A kind of stone head deep hole sublevel is segmented efficient Cut Blasting method
KR20190105446A (en) * 2018-03-05 2019-09-17 강대우 Lock blasting method

Also Published As

Publication number Publication date
JP7102669B2 (en) 2022-07-20
CN111238328A (en) 2020-06-05
JP2021139613A (en) 2021-09-16

Similar Documents

Publication Publication Date Title
CN111238328B (en) Compound peripheral eye and tunnel efficient vibration reduction and smooth surface smooth bottom blasting method
CN205262309U (en) Compound undercutting blasting structure of big section of medium -length hole
CN107843156A (en) Gallery(Tunnel)The method of driving enhancing Cut Blasting efficiency
CN106014421B (en) A kind of limited rock tunnel excavation method of concussion of blasting
CN112161534B (en) One-step mining control blasting method for mine underground upward access
CN104990471B (en) Extremely short-range blasting construction vibration absorbing method and vibration absorbing and energy gathering lancing cartridge
CN106767205A (en) The micro- Comprehensive Control blasting method of shaking of bustling urban district subway running tunnel
CN106440981B (en) Improve the deep hole blasting method of bulk yield in developmental joint fissure granite mine
CN111102892B (en) Wedge-shaped cut blast hole arrangement method suitable for blasting excavation of deep-buried tunnel
CN112880501B (en) Flight-limited hole drilling and blasting method for controlling tunnel blasting flyrock
CN109539915B (en) Cutting raise blasting construction method
Pomasoncco-Najarro et al. Pre-split blasting design to reduce costs and improve safety in underground mining
CN108915694B (en) Construction method for tunnel lower-layer step full-section protective-layer-free extrusion blasting and road repairing and access protection
CN110940241B (en) Tunnel extremely soft rock deep hole cut peripheral hole isolation air column charging buffering blasting method
CN112432566A (en) Full-section rapid excavation method for large-section tunnel
CN110440648B (en) Excavation method based on local section blasting and heading machine excavation
CN114018112B (en) Nuclear island and corridor foundation pit negative excavation blasting structure and blasting method
CN112964143B (en) Three-time blasting method for hollow hole straight-hole cut
CN210570271U (en) Cut hole structure for tunnel blasting tunneling engineering
CN109900175A (en) The low damage blasting method of underground mine tunnelling
CN114754644B (en) Cut blasting method for optimizing number of blast holes in rock roadway tunneling
LU500152B1 (en) Blasting Method for Reducing Surrounding Rock Damage and Blasting Vibration
CN115143852B (en) Urban tunnel damping blasting structure and construction method
CN219387888U (en) Tunnel blasting shock-absorbing hole
RU2059070C1 (en) Method for making kerf cavity

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