CN107605491B - A kind of tunneling method - Google Patents
A kind of tunneling method Download PDFInfo
- Publication number
- CN107605491B CN107605491B CN201710826619.1A CN201710826619A CN107605491B CN 107605491 B CN107605491 B CN 107605491B CN 201710826619 A CN201710826619 A CN 201710826619A CN 107605491 B CN107605491 B CN 107605491B
- Authority
- CN
- China
- Prior art keywords
- target rock
- blasthole
- rock
- target
- excavating
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000005641 tunneling Effects 0.000 title claims abstract description 15
- 239000011435 rock Substances 0.000 claims abstract description 157
- 230000006378 damage Effects 0.000 claims abstract description 91
- 238000004880 explosion Methods 0.000 claims abstract description 34
- 238000005065 mining Methods 0.000 claims abstract description 27
- 238000009412 basement excavation Methods 0.000 claims description 27
- 208000027418 Wounds and injury Diseases 0.000 claims description 25
- 208000014674 injury Diseases 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 239000007787 solid Substances 0.000 abstract description 7
- 230000001771 impaired effect Effects 0.000 description 8
- 238000001514 detection method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 239000002360 explosive Substances 0.000 description 4
- 238000005422 blasting Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000003708 ampul Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The embodiment of the present invention discloses a kind of tunneling method, is related to building engineering field, and solid rock can be efficiently excavated under conditions of not influencing surrounding enviroment.The method, usage mining equipment and standing Combined Mining, comprising: the first blasthole is set on target rock and carries out Single Point Blow Up using first blasthole；It determines Single Point Blow Up damage caused by the target rock, and determines damage threshold corresponding to the mining ability of the excavating equipment；Multiple second blastholes are set on the target rock to carry out explosion to the target rock, the distance between each described second blasthole is related to the damage threshold；The target rock after explosion is excavated using the excavating equipment.The present invention can be used in tunnelling.
Description
Technical field
The present invention relates to construction engineering technical field more particularly to a kind of tunneling methods.
Background technique
In city underground, piping lane or other underground space Process of Engineering Construction, to keep construction continuous and reducing to week
The interference in collarette border, usually using mechanical excavation, especially cantilevered rock ripper.It is such as uniaxial but when encountering solid rock
Compression strength is greater than 80MPa, and when rock is relatively complete, rock ripper inefficiency, or even can not construct.According to tradition
Blasting Excavation mode, first is that being affected to surrounding enviroment, second is that needing to change construction technology, efficiency is unable to get guarantee.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of tunneling method, it can be in the condition for not influencing surrounding enviroment
It is lower efficiently to excavate solid rock.
In a first aspect, the embodiment of the present invention provides a kind of tunneling method, usage mining equipment and standing joint
It excavates, which comprises the first blasthole is set on target rock and carries out Single Point Blow Up using first blasthole；It determines
The Single Point Blow Up is damaged caused by the target rock, and determines damage corresponding to the mining ability of the excavating equipment
Threshold value；Multiple second blastholes are set on the target rock to carry out explosion, each second blasthole to the target rock
The distance between it is related to the damage threshold；The target rock after explosion is excavated using the excavating equipment.
With reference to first aspect, in the first embodiment of first aspect, the determination Single Point Blow Up is to described
It is damaged caused by target rock, and determines that damage threshold corresponding to the mining ability of the excavating equipment includes: with described
First blasthole be origin any ray at least two exploration holes are set；Determine the mesh between the two neighboring exploration hole
Mark the degree of injury of rock；It attempts to excavate the target rock, the damage threshold with predetermined power using the excavating equipment
Minimal damage degree for the part successfully excavated in the target rock.
The first embodiment with reference to first aspect, in second of embodiment of first aspect, the exploration hole
The equidistantly distributed on the ray.
The first embodiment with reference to first aspect, in the third embodiment of first aspect, the determining phase
The degree of injury of the target rock includes: measurement sound wave adjacent two in the target rock between adjacent two exploration holes
The first spread speed between a exploration hole；The sound wave measured according to first spread speed and in advance is undamaged
The target rock in the second spread speed, determine the degree of injury of the target rock between two neighboring exploration hole.
With reference to first aspect, in the 4th kind of embodiment of first aspect, the distance between each described second blasthole by
Following manner determines: determining that the Single Point Blow Up is described according to damage threshold corresponding to the mining ability of the excavating equipment
The excavating radius of excavating equipment manufacture；The distance between each described second blasthole is determined according to the excavating radius.
The 4th kind of embodiment with reference to first aspect, it is described described in the 5th kind of embodiment of first aspect
It includes: with the central point of the target rock that multiple second blastholes are arranged on target rock to carry out explosion to the target rock
Centered on, to multiple second blastholes are symmetrically positioned about, the distance between two neighboring second blasthole is equal to the excavation
2 times of radius.
The 4th kind of embodiment with reference to first aspect, it is described described in the 6th kind of embodiment of first aspect
Multiple second blastholes are set on target rock to carry out the excavation boundary that explosion comprises determining that tunnel to the target rock；From
The excavation boundary is sequentially arranged multiple second blastholes to center, and the distance between two neighboring described second blasthole is equal to
2 times of the excavating radius, any second blasthole are greater than default safe distance at a distance from the excavation boundary.
Any embodiment with reference to first aspect or in the first to the 6th of first aspect the, at the 7th kind of first aspect
In embodiment, it is described be arranged on target rock the first blasthole and using first blasthole carry out Single Point Blow Up include:
First blasthole described in Drilling on the face of the target rock, the diameter of first blasthole are 42 millimeters or 45 millimeters, institute
The depth for stating the first blasthole is greater than default 0.2 meter of excavating depth；Water coupling is carried out in first blasthole, and described
The aperture of first blasthole is filled blocking, and stemming length is greater than 20 times of the diameter of first blasthole；Ignition charge is with right
The target rock carries out Single Point Blow Up.
Any embodiment with reference to first aspect or in the first to the 6th of first aspect the, at the 8th kind of first aspect
It is described that multiple second blastholes are set on the target rock to include: to target rock progress explosion in embodiment
Multiple second blastholes are set on the face of the target rock；Water coupling is carried out in second blasthole；
By excavating equipment recession other than 20 meters of the target rock；Simultaneously ignite or from centre to periphery successively ignition charge with
Explosion is carried out to the target rock.
The tunneling method that the embodiment of the present invention provides can determine impaired target rock using Single Point Blow Up
In damage threshold corresponding with the mining ability of excavating equipment, that is, determine can be mined the damage of equipment excavation with can not
It is mined the critical value of the damage of equipment excavation, then arranges multiple second blastholes on target rock according to the damage threshold,
So that the damage for forming explosion to target rock is both greater than the damage threshold, such excavating equipment can be to the mesh after explosion
Mark rock goes on smoothly excavation, and solid rock has efficiently been excavated under conditions of not influencing surrounding enviroment, has substantially increased tunnel
Digging efficiency.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of flow chart for the tunneling method that the embodiment of the present invention provides；
Fig. 2 is a kind of structural schematic diagram of the first blasthole and exploration hole in the embodiment of the present invention；
Fig. 3 is a kind of detail flowchart for the tunneling method that the embodiment of the present invention provides.
Specific embodiment
The embodiment of the present invention is described in detail with reference to the accompanying drawing.
It will be appreciated that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
Its embodiment, shall fall within the protection scope of the present invention.
In the embodiment of the present invention, usage mining equipment and standing cooperation carry out tunnelling, in excavating equipment energy
Enough place usage mining equipment of successfully excavating is excavated, and overly hard in excavation target, the mining ability of excavating equipment is not enough into
Function excavates place, and first to target progress standing is excavated, explosion degree of injury, which is subject to, can be mined equipment excavation.Its
In, standing refers to that quick-fried rear rock is largely split without falling, and can efficiently be excavated with excavating equipments such as rock rippers.
Fig. 1 is a kind of flow chart for the tunneling method that the embodiment of the present invention provides, as shown in Figure 1, the present embodiment
Method, usage mining equipment and standing Combined Mining, this method may include:
The first blasthole is arranged on target rock and carries out Single Point Blow Up using first blasthole by S11；
Wherein, target rock refers to that hardness is higher, is difficult to tunnel using only excavating equipment, needs to carry out standing
Rock.First blasthole can be using a deep hole of the equipment Drillings such as electric drill on target rock, can be in the first blasthole
It loads rendrock and explosion is carried out to target rock.Due to the first blasthole quantity only one, utilize the first blasthole pair
The explosion that target rock carries out is also known as Single Point Blow Up.Since Single Point Blow Up borehole blasting point is single, explosive strength is weaker, it is typically only capable to
Certain damage is caused to target rock and cannot be by target rock fragmentation.Degree of injury and rock of the individual shot to target rock
The property of stone itself is related, and is gradually reduced with the increase at a distance from the first blasthole.
In order to guarantee that the excacation on the same day can be gone on smoothly, the first blasthole needs enough depth.Optionally, first
It is bigger such as 0.2 meter bigger than same day plan excavating depth that the depth of blasthole can plan the depth excavated than the same day.First blasthole
The diameter of drill bit that is generally used with Drilling of diameter it is equal, in one embodiment of the invention, the diameter of the first blasthole is
45 millimeters or 42 millimeters, certainly in other embodiments of the invention, the diameter of the first blasthole can also be other values, the present invention
Embodiment do not limit this.
S12 determines Single Point Blow Up damage caused by the target rock, and determines the excavation of the excavating equipment
Damage threshold corresponding to ability；
It should be understood that the damage that Single Point Blow Up forms target rock is related with the property of target rock itself.If
Rock itself is finer and close, hardness is higher, then damage caused by it may be smaller for Single Point Blow Up, if this body structure of rock
Loosely, hardness is lower, then the Single Point Blow Up under equal conditions damaged caused by it may just it is larger.
In addition, the different parts in same target rock, due to the first borehole distance from difference, Single Point Blow Up causes
Damage it is also different.It is bigger apart from the nearlyr damage of blasthole, it is smaller apart from the remoter damage of blasthole.
The size of target damage of rock can quantitatively be calculated by degree of injury.Specifically, degree of injury can pass through
Target rock determines that degree of injury D meets following relationship to the spread speed of sound wave:
Wherein, VP1For spread speed of the longitudinal wave in impaired target rock, VP0It is identical longitudinal wave in undamaged mesh
Mark the spread speed in rock.Crack is generated after being damaged due to rock, air entrance is had in crack, and sound wave is aerial
Spread speed is slower, therefore VP1Usually less than VP0, D is usually the real number between 0 to 1.
Degree of injury D indicates the extent of damage of target rock, and D is bigger, impaired more serious, easier to be mined equipment digging
Pick, D is smaller, impaired slighter, is less susceptible to be mined equipment excavation.It should be understood that since same excavating equipment is with pre-
If its mining ability is determining when power excavates, therefore there are the impaired journeys that the mining ability of one and excavating equipment match
What degree, i.e. excavating equipment can be excavated successfully damages the critical value with the damage for the excavation that can not succeed, and is greater than in target rock and is somebody's turn to do
The damage of critical value can be mined equipment and successfully excavate, and the damage for being less than the critical value can not all be mined equipment success
It excavates, which is the damage threshold that excavating equipment is excavated.
It is in one embodiment of the invention, single in order to determine damage threshold corresponding to the mining ability of excavating equipment
It can be proceeded as follows after point explosion:
At least two exploration holes are set on any ray using first blasthole as origin；
Determine the degree of injury of the target rock between the two neighboring exploration hole；
It attempts to excavate the target rock with predetermined power using the excavating equipment, the damage threshold is the target
The minimal damage degree for the part successfully excavated in rock.
It optionally, can be on the face of target rock using the first blasthole as origin by the ray of origin of the first blasthole
In the horizontal direction or the ray of vertical direction or 30 ° of elevation directions.It can according to need setting two or two on the ray
The above exploration hole.The specific structure of each exploration hole can be identical as the first blasthole, and difference is that exploration hole is not intended to explosion
, but be used to measure velocity of wave in target rock, explosive is not loaded in exploration hole.
Specifically, in one embodiment of the invention, determining the damage of target rock between two neighboring exploration hole
Degree can include:
Measure first spread speed of the sound wave between exploration hole two neighboring in target rock；
Second spread speed of the sound wave measured according to the first spread speed and in advance in undamaged target rock,
Determine the degree of injury of target rock between two neighboring exploration hole.
In order to preferably measure first spread speed of the longitudinal wave in impaired target rock, can be infused in exploration hole
Water inputs sound wave with the probe of water coincidence sonic test instrument from an exploration hole, then detects sound wave from adjacent exploration hole
Signal, to measure spread speed of the longitudinal wave between two adjacent exploration holes, i.e. the first spread speed.
Optionally, the quantity and spacing of exploration hole can according to the detection accuracy of damage is required and investigative range requires and
Adjustment, the detection more investigative ranges of hole number are bigger, and the smaller detection accuracy of spacing is higher, and the spacing between exploration hole can be equal
Or differ.For the ease of demarcating the relationship of degree of injury and distributing position, in one embodiment of the invention, exploration hole can be with
The equidistantly distributed on above-mentioned ray.
In order to obtain spread speed of the sound wave in undamaged target rock, i.e. the second spread speed, in the present invention
One embodiment in, identical with target rock quality sillar can be found in scene before Single Point Blow Up, it is desirable that the sillar
Without crack and structural plane, the longitudinal wave velocity of this rocks is measured by RSM-SY5N acoustic speedometer, i.e., rock is when not damaged
To the second spread speed of longitudinal wave.It can determine between two neighboring exploration hole according to the first spread speed and the second spread speed
The degree of injury D of target rock, referring to formula (1).
S13, is arranged multiple second blastholes on the target rock to carry out explosion to the target rock, and each described the
The distance between two blastholes are related to the damage threshold；
Specifically, the distance between each second blasthole can be determined by following manner:
Determine that Single Point Blow Up is the digging that excavating equipment manufactures according to damage threshold corresponding to the mining ability of excavating equipment
Dig radius；
The distance between each second blasthole is determined according to the excavating radius.
It should be understood that Single Point Blow Up to the degree of injury of target rock with the first blasthole of distance distance it is different without
Together, therefore, damage threshold is also substantially distributed in using the first blasthole as the center of circle, using a certain length as on the circle of radius.According to step
The corresponding relationship between degree of injury and distributing position determined in S12, that is, can determine that the excavating radius.
For example, as shown in Fig. 2, in one embodiment of the invention, individual shot is carried out at the first blasthole O1
Afterwards, occurs different degrees of damage around O1.It has been sequentially distributed in a horizontal rays using the first blasthole O1 as origin
Exploration hole A1, A2, A3, A4, A5, the distance between two neighboring exploration hole are 25 centimetres, and O1 is 30 centimetres at a distance from A1.Such as
It is 0.7 that fruit, which detects the degree of injury between exploration hole A1 and A2, and the degree of injury between exploration hole A2 and A3 is 0.6, detection
Degree of injury between hole A3 and A4 is 0.5, and the degree of injury between exploration hole A4 and A5 is 0.4, and excavating equipment is being attempted to dig
When pick, the rock between exploration hole A3 and A4 can be successfully excavated, but can not successfully excavate the rock between exploration hole A4 and A5,
It can then determine that degree of injury corresponding with the mining ability of excavating equipment is the i.e. excavation of the distance between 0.5, O1 and A4
Excavating radius of the equipment to the target rock.Using O1 as the center of circle, using the excavating radius as in the circle of radius, the institute of target rock
There is part that can be caused 0.5 or more degree of injury by individual shot, that is to say, that the target rock in this circle is all
Equipment excavation can be mined after individual shot.
Optionally, multiple second blastholes arranged on target rock both can be from center outside week layer-by-layer arrangement, can also
First to determine outer perimeter, arrange that the embodiment of the present invention does not limit this together by periphery and center.For example, at this
In one embodiment of invention, multiple second blastholes are arranged on the target rock can to carry out explosion to the target rock
Include: centered on the central point of the target rock, to being symmetrically positioned about multiple second blastholes, two neighboring second
The distance between blasthole is equal to 2 times of the excavating radius.In another embodiment of the present invention, on the target rock
Multiple second blastholes are set to carry out explosion to the target rock can include: determine the excavation boundary in tunnel；From the excavation
Boundary is sequentially arranged multiple second blastholes to center, and the distance between two neighboring described second blasthole is equal to the excavation
2 times of radius, any second blasthole are greater than default safe distance at a distance from the excavation boundary.Wherein, safety is preset
Distance is the circumference for protection path, reduces influence to peripheral facilities and the distance that is arranged, that is to say, that blasthole is answered
It is arranged to as far as possible far from profile, to reduce the damage to periphery.
S14 excavates the target rock after explosion using the excavating equipment.
After loading explosive progress explosion in the second blasthole, the explosion damage that target rock is formed can be dug
Pick equipment is efficiently excavated, therefore substantially increases tunnelling efficiency.
The tunneling method that the embodiment of the present invention provides can determine impaired target rock using Single Point Blow Up
In damage threshold corresponding with the mining ability of excavating equipment, that is, determine can be mined the damage of equipment excavation with can not
It is mined the critical value of the damage of equipment excavation, then arranges multiple second blastholes on target rock according to the damage threshold,
So that the damage for forming explosion to target rock is both greater than the damage threshold, such excavating equipment can be to the mesh after explosion
Mark rock goes on smoothly excavation, and solid rock has efficiently been excavated under conditions of not influencing surrounding enviroment, has substantially increased tunnel
Digging efficiency.
Tunneling method provided by the invention is described in detail below by specific embodiment.
As shown in figure 3, the tunneling method in the present embodiment includes the following steps:
Hard sillar to be excavated is found at S201, scene, it is desirable that without crack and structural plane.It is tested the speed by RSM-SY5N sound wave
Instrument measures the longitudinal wave velocity of this rocks, i.e. rock ideal longitudinal wave velocity (second spread speed) when not damaged；
S202, center Drilling diameter 42 or the first blasthole of 45mm one in a complete rock face, hole depth are preferably greater than applied
Work day arranges cutting depth 0.2m.
S203, low explosive, water coupling are selected；
Specifically, charge diameter 32mm, borehole bottom places water bag and utilizes watrer ampoule stemming mixing back-filling blinding, average line
Degree of packing can be more slightly lower than presplit blasting linear charging density；Aperture stemming length is not less than 20 times of blasthole diameter, avoids producing
Raw 20 meters or so of slungshot.
S204, ignition charge carry out Single Point Blow Up；
S205, multiple exploration holes are set on any ray using first blasthole as origin；
S206, measurement sound wave are in the first spread speed in the target rock between two neighboring exploration hole；
S207, the sound wave measured according to first spread speed and in advance are in the undamaged target rock
In the second spread speed, determine the degree of injury of target rock between two neighboring exploration hole；
S208, it determines that the damage threshold is, when the excavating equipment excavates target rock with predetermined power, successfully excavates
Damaged portion corresponding to minimal damage degree；
Before excavating such and crack using rock ripper and more developing solid rock, different developmental conditions are first selected
This rocks calculates damage of rock degree using the velocity of longitudinal wave in this rocks of acoustic detection.Using rock ripper to not
This rocks with developmental condition are excavated, and choosing development machine can not efficiently be excavated in normal operation just
Developmental condition rock, the damage of rock degree under this developmental condition is determined as the damage that rock ripper excavates this rocks
Hurt threshold value.
S209, the damage threshold according to corresponding to the mining ability of excavating equipment determine that Single Point Blow Up is the excavating equipment
The excavating radius of manufacture；
S210, determine that the distance between each second blasthole is equal to 2 times of the excavating radius；
S211, multiple second blastholes are set on the target rock, the distance between second blasthole is true by step S210
It is fixed；
S212, water coupling is carried out in second blasthole；
S213, excavating equipment is dropped back other than 20 meters of the target rock；
S214, simultaneously ignite or from centre to periphery successively ignition charge with to the target rock carry out explosion；
Damage of rock degree after explosion is all larger than the damage threshold in step S208.
S215, usage mining equipment continue to excavate to the target rock after explosion.
The embodiment of the present invention provide tunneling method, determined using Single Point Blow Up in impaired target rock with
The corresponding damage threshold of the mining ability of excavating equipment, then arranges multiple second according to the damage threshold on target rock
Blasthole, so that the damage for forming explosion to target rock is both greater than the damage threshold, such excavating equipment can be to explosion
Target rock afterwards goes on smoothly excavation, and solid rock has efficiently been excavated under conditions of not influencing surrounding enviroment, has been greatly improved
Tunnelling efficiency.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence " including one ... ", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.
Each embodiment in this specification is all made of relevant mode and describes, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, all answer by the variation or determination that can be readily occurred in
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (8)
1. a kind of tunneling method, which is characterized in that usage mining equipment and standing Combined Mining, the method packet
It includes:
First blasthole is set on target rock and carries out Single Point Blow Up using first blasthole；
It determines Single Point Blow Up damage caused by the target rock, and determines that the mining ability institute of the excavating equipment is right
The damage threshold answered；
Be arranged on the target rock multiple second blastholes with to the target rock carry out explosion, each second blasthole it
Between distance it is related to the damage threshold；
The target rock after explosion is excavated using the excavating equipment；
The determination Single Point Blow Up is damaged caused by the target rock, and determines the mining ability of the excavating equipment
Corresponding damage threshold includes:
At least two exploration holes are set on any ray using first blasthole as origin；
Determine the degree of injury of the target rock between the two neighboring exploration hole；
It attempts to excavate the target rock with predetermined power using the excavating equipment, the damage threshold is the target rock
The minimal damage degree of the middle part successfully excavated.
2. the method according to claim 1, wherein exploration hole equidistantly distributed on the ray.
3. the method according to claim 1, wherein the mesh between the two neighboring exploration hole of the determination
Mark rock degree of injury include:
Sound wave is measured in the first spread speed in the target rock between two neighboring exploration hole；
The sound wave measured according to first spread speed and in advance in the undamaged target rock second
Spread speed determines the degree of injury of the target rock between two neighboring exploration hole.
4. the method according to claim 1, wherein the distance between each described second blasthole is true by following manner
It is fixed:
Determine that the Single Point Blow Up is the excavating equipment according to damage threshold corresponding to the mining ability of the excavating equipment
The excavating radius of manufacture；
The distance between each described second blasthole is determined according to the excavating radius.
5. according to the method described in claim 4, it is characterized in that, described be arranged multiple second blastholes on the target rock
Include: to carry out explosion to the target rock
Centered on the central point of the target rock, to being symmetrically positioned about multiple second blastholes, two neighboring second
The distance between blasthole is equal to 2 times of the excavating radius.
6. according to the method described in claim 4, it is characterized in that, described be arranged multiple second blastholes on the target rock
Include: to carry out explosion to the target rock
Determine the excavation boundary in tunnel；
Be sequentially arranged multiple second blastholes from the excavation boundary to center, between two neighboring second blasthole away from
From 2 times equal to the excavating radius, any second blasthole is greater than default safe distance at a distance from the excavation boundary.
7. method according to any one of claim 1 to 6, which is characterized in that described to be arranged first on target rock
Blasthole and using first blasthole carry out Single Point Blow Up include:
The first blasthole described in Drilling on the face of the target rock, the diameter of first blasthole are 42 millimeters or 45 millis
Rice, the depth of first blasthole are greater than default 0.2 meter of excavating depth；
Water coupling is carried out in first blasthole, and is filled blocking, blocking length in the aperture of first blasthole
Degree is greater than 20 times of the diameter of first blasthole；
Ignition charge is to carry out Single Point Blow Up to the target rock.
8. method according to any one of claim 1 to 6, which is characterized in that described to be arranged on the target rock
Multiple second blastholes to include: to target rock progress explosion
Multiple second blastholes are set on the face of the target rock；
Water coupling is carried out in second blasthole；
By excavating equipment recession other than 20 meters of the target rock；
Simultaneously ignite or from centre to periphery successively ignition charge with to the target rock carry out explosion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710826619.1A CN107605491B (en) | 2017-09-13 | 2017-09-13 | A kind of tunneling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710826619.1A CN107605491B (en) | 2017-09-13 | 2017-09-13 | A kind of tunneling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107605491A CN107605491A (en) | 2018-01-19 |
| CN107605491B true CN107605491B (en) | 2019-07-09 |
Family
ID=61063061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710826619.1A Expired - Fee Related CN107605491B (en) | 2017-09-13 | 2017-09-13 | A kind of tunneling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107605491B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440647A (en) * | 2018-05-02 | 2019-11-12 | 核工业北京地质研究院 | A kind of method for digging excavated based on full-face blast and development machine |
| CN110618045B (en) * | 2018-06-20 | 2023-01-24 | 核工业北京地质研究院 | Test method for calculating rock excavation parameters |
| CN110618248A (en) * | 2018-06-20 | 2019-12-27 | 核工业北京地质研究院 | Test method for calculating rock blasting parameters |
| CN110617979A (en) * | 2018-06-20 | 2019-12-27 | 核工业北京地质研究院 | Test method for calculating rock mechanical excavation parameters |
| CN110618249B (en) * | 2018-06-20 | 2022-03-18 | 核工业北京地质研究院 | Test method for geotechnical engineering excavation construction |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581223A (en) * | 2009-06-23 | 2009-11-18 | 中南大学 | Method for detecting slip casting effect of tunnel |
| CN104101270A (en) * | 2014-07-08 | 2014-10-15 | 华侨大学 | Medium-length hole blasting and cutting method in underground construction |
| CN104655820A (en) * | 2014-09-11 | 2015-05-27 | 中铁十六局集团第五工程有限公司 | Judging, grading and processing method of rockburst of hard rocks for tunnel |
| CN105222660A (en) * | 2015-08-21 | 2016-01-06 | 成都理工大学 | A kind of High-geotemperature tunnel cooling presplit blasting method |
| CN106225618A (en) * | 2016-08-29 | 2016-12-14 | 华北科技学院 | The method split is expanded in a kind of semo-infinite rock mass borehole blasting |
| CN106370730A (en) * | 2016-08-25 | 2017-02-01 | 中国科学院武汉岩土力学研究所 | Method of precisely measuring damage threshold value of brittle materials on the basis of acoustic emission technology |
-
2017
- 2017-09-13 CN CN201710826619.1A patent/CN107605491B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581223A (en) * | 2009-06-23 | 2009-11-18 | 中南大学 | Method for detecting slip casting effect of tunnel |
| CN104101270A (en) * | 2014-07-08 | 2014-10-15 | 华侨大学 | Medium-length hole blasting and cutting method in underground construction |
| CN104655820A (en) * | 2014-09-11 | 2015-05-27 | 中铁十六局集团第五工程有限公司 | Judging, grading and processing method of rockburst of hard rocks for tunnel |
| CN105222660A (en) * | 2015-08-21 | 2016-01-06 | 成都理工大学 | A kind of High-geotemperature tunnel cooling presplit blasting method |
| CN106370730A (en) * | 2016-08-25 | 2017-02-01 | 中国科学院武汉岩土力学研究所 | Method of precisely measuring damage threshold value of brittle materials on the basis of acoustic emission technology |
| CN106225618A (en) * | 2016-08-29 | 2016-12-14 | 华北科技学院 | The method split is expanded in a kind of semo-infinite rock mass borehole blasting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107605491A (en) | 2018-01-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107605491B (en) | A kind of tunneling method | |
| Huo et al. | Rock damage control for large-diameter-hole lateral blasting excavation based on charge structure optimization | |
| CN103615941B (en) | The blasting method of modernized railway shallow-buried sector | |
| CN104634198B (en) | Close on controlled blasting construction method in the massif excavation of highway limit | |
| CN102607341B (en) | A kind of Stability of Open-pit Mine Slope controlled blasting method | |
| Singh et al. | Controlled blasting for long term stability of pit-walls | |
| CN106767205B (en) | The bustling micro- vibration comprehensively control blasting method of urban district subway running tunnel | |
| CN106288995B (en) | A kind of hole-by-hole initiation explosion treatment Abandoned golfs method | |
| CN108413821B (en) | Mintrop wave based on electronic digital detonator inhibits blasting construction method | |
| Nateghi et al. | Control negative effects of blasting waves on concrete of the structures by analyzing of parameters of ground vibration | |
| KR101555618B1 (en) | Excavation method for tunnel drilling vibration reduction and increased Chapter (long-hole blasting) | |
| CN109026037A (en) | Shield tunnel meets basement rock earth layer of solitary stone and pre-processes construction method | |
| CN112161538A (en) | Complex mining area environment control blasting method | |
| Fu et al. | Comparison of excavation damage zones resulting from blasting with nonel detonators and blasting with electronic detonators | |
| Hagan, TO*, Milev, AM*, Spottiswoode, SM*, Hildyard, MW*, Grodner, M.*, Rorke, AJ**, Finnie, GJ***, Reddy, N.*, Haile, AT*, Le Bron, KB*, & Grave | Simulated rockburst experiment-an overview | |
| CN111102892B (en) | Wedge-shaped cut blast hole arrangement method suitable for blasting excavation of deep-buried tunnel | |
| CN104457466B (en) | A kind of blasting method of tunnel open excavation section | |
| Singh et al. | Reducing environmental hazards of blasting using electronic detonators in a large opencast coal project-a case study | |
| CN109737846B (en) | Anti-explosion blasting method for gentle dip angle stratified rock mass | |
| CN104964618A (en) | Explosion system and method using electronic detonator and non-electronic detonator combination mode | |
| KR100438028B1 (en) | A tunnel blasting method favorable to the environment,which utilizes pre-splitting and an upper center cut | |
| US11982596B2 (en) | Method and system for blast-induced vibration monitoring of tunnels in high asymmetric in-situ stresses | |
| Adhikari et al. | On the application of rock mass quality for blasting in large underground chambers | |
| CN114993125A (en) | Deep high-stress rock roadway medium-deep hole efficient cut blasting method based on ground stress induction effect | |
| CN101799262A (en) | Smoothwall blasting method for digging tunnel |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190709 Termination date: 20200913 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |