CN105954357A - Method for simultaneous measurement of sound velocity of multi-step horizontal rock body - Google Patents
Method for simultaneous measurement of sound velocity of multi-step horizontal rock body Download PDFInfo
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- CN105954357A CN105954357A CN201610266128.1A CN201610266128A CN105954357A CN 105954357 A CN105954357 A CN 105954357A CN 201610266128 A CN201610266128 A CN 201610266128A CN 105954357 A CN105954357 A CN 105954357A
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Abstract
The invention discloses a method for simultaneous measurement of sound velocity of a multi-step horizontal rock body. The method comprises the steps: taking explosion of an explosive at the bottom of a test blast hole as a vibration source, adopting vibration measurers arranged at the middle-lower parts of different horizontal stepped slopes, acquiring surrounding rock vibration signals of vibration measuring points corresponding to the vibration measurers, dividing the distance difference of two corresponding vibration measuring points from an initial vibration source position by the relative time difference of the vibration signals reaching the vibration measuring points, calculating to obtain the sound velocity of the corresponding region rock body, so as to realize simultaneous measurement of the sound velocity of the multi-step horizontal rock body. The method is applicable to on-site simultaneous measurement of the sound velocity of the multi-step horizontal rock body, calculates and detects the cracking degree of the rock body, provides a basis for side slope stability analysis, side slope reinforcement scheme design and side slope forming blasting design, can also be used in open-pit mine blasting engineering or trench excavation engineering, and obtains the wave impedance matching condition between the explosive and rock in the process of construction, so as to provide a basis for optimization of explosive types, design of explosive performance and adjustment of charging parameters.
Description
Technical field
The present invention relates to the measuring method of a kind of velocity of sound, a kind of side simultaneously measuring the multi-step horizontal rock mass velocity of sound
Method, lithology when belonging to the prediction of rock mass globality and ditch Excavation blasting, the surface mine exploitation explosion of slope project is pre-
The technical fields such as report.
Background technology
In the large-scale earth and rock works such as slope project and mine engineering, it is often necessary to measure the velocity of sound of rock, logical usual acoustic
The velocity of sound of ripple survey meter testing standard rock sample, or with the charge detonation being embedded in rock mass as focus test vibration ripple
Spread speed in rock mass around, i.e. the rock mass velocity of sound, although two kinds of methods are all conventional rock acoustic assay methods,
But its meaning has bigger difference.The velocity of sound of rock is relevant with its level of breakage, ruptures the most serious, and the velocity of sound is the lowest.The former
It is to be polished the rock sample transmission time difference relative to the scope of freedom by the reflection measurement of sound wave, then with rock sample of polishing relative to the scope of freedom
Distance divided by interval transit time, the surveyed velocity of sound is the velocity of sound of complete rock sample through polishing, the i.e. overall sillar velocity of sound；The latter
Measure is the velocity of sound of the rock mass having joint fissure under actual condition, less than the former.
The object of study of the engineerings such as the stability analysis of rock slope, slope rock mass reinforcing, mine bench blasting construction is equal
Being the rock mass having certain level of breakage, it has bigger difference with the complete sillar without crack.In slope project, pass through
The rock mass velocity of sound of forward probe difference step level, compares it with the velocity of sound of correspondence position sillar sample, with two
The ratio of person's difference and the sillar sample velocity of sound differentiates the level of breakage of rock mass, for slope stability analysis, reinforcement of a slope,
Side slope pre split explosion or design of smooth blasting provide foundation；In the open in mine engineering or ditch excavation project, it is possible to
With the rock mass velocity of sound by the different step level of test, it is thus achieved that explosive and the Impedance matching situation of rock in work progress,
Thus provide foundation for preferred explosive kind, design explosive property, adjustment data of explosive filled, it is achieved fine explosion and environmental protection
Explosion.As can be seen here, the velocity of sound measuring the horizontal rock mass of multi-step efficiently is the engineering such as slope project, mine engineering
Urgent needs.
Summary of the invention
It is an object of the invention to provide a kind of method simultaneously measuring the multi-step horizontal rock mass velocity of sound, the method can be passed through
The base charge in blast working big gun hole or independent test big gun hole explodes as focus, with being arranged on varying level bench face
The vibration measurement instrument of middle and lower part, obtains the vibration of base rock signal of corresponding vibration measuring point, initial according to two corresponding vibration measuring point distances
The range difference of hypocentral location calculates the velocity of sound of respective regions rock mass divided by the difference time of advent obtaining vibration signal, it is achieved
Measure while the multi-step horizontal rock mass velocity of sound.
The purpose of the present invention can reach by adopting the following technical scheme that:
A kind of method simultaneously measuring the multi-step horizontal rock mass velocity of sound, described method utilizes the explosive bottom test big gun hole quick-fried
Fried as focus, use the vibration measurement instrument being arranged on varying level bench face middle and lower part, acquisition vibration measurement instrument correspondence vibration measuring
The vibration of base rock signal of point, according to two corresponding vibration measuring points range difference apart from initial hypocentral location divided by acquired vibration
The relative time that signal arrives vibration measuring point is poor, calculates the velocity of sound of respective regions rock mass, thus realizes the horizontal rock of multi-step
Measure while the body velocity of sound.
As a kind of preferred version, said method comprising the steps of:
1) if utilizing the big gun hole of normal blast working, elder generation's quick-fried big gun hole in selected quick-fried district is as test big gun hole, otherwise, selects
A big gun hole is bored, as test big gun hole near the position of side slope；
2) measure the degree of depth in test big gun hole, determine the buried depth of fire point；
3) on the bench face of this step level, benchmark vibration measuring point, cloth on the bench face of next step level are arranged
Put benchmark vibration measuring point, the bench face of next step level is arranged benchmark vibration measuring point ... the like, each
Benchmark vibration measuring point be respectively positioned on through test big gun hole and being perpendicular on the vertical of bench face, i.e. each benchmark vibration measuring point with
Test big gun hole is coplanar；Wherein, each benchmark vibration measuring point is arranged on the exposed protolith of bench face middle and lower part；
4) other vibration measuring points are arranged in the one or both sides at each benchmark vibration measuring point of same step level, other vibration measuring points
With benchmark vibration measuring point at same elevation, and being arranged on the exposed protolith of bench face middle and lower part, each vibration measuring point has
One vibration measurement instrument；
5) fire point and the three-dimensional coordinate of each vibration measuring point are measured；
6) test big gun hole is carried out powder charge；
7) each vibration measurement instrument is connected with synchronous signal acquisition device, and starts synchronous signal acquisition device, enter shape to be measured
State；
8) according to shotfiring safety regulatory requirements, carry out blast warning, then assign order of detonating；
9), after detonating, according to fire point and the three-dimensional coordinate of each vibration measuring point, the propagation path of vibration of base rock signal is calculated；
From synchronous signal acquisition device, read vibration signal respectively arrive the time of each vibration measuring point；
10) according to being correlated with what two vibration measuring points range difference apart from initial hypocentral location arrived divided by acquired vibration signal
Time difference obtains the velocity of sound of respective regions rock mass.
As a kind of preferred version, described method also includes:
11) in slope project, by measuring the rock mass velocity of sound of different step level, by the velocity of sound measured and corresponding position
The velocity of sound putting sillar sample compares, and differentiates the level of breakage of rock mass with the ratio of both differences and the sillar sample velocity of sound,
Foundation is provided for slope stability analysis, reinforcement of a slope, side slope pre split explosion or design of smooth blasting.
As a kind of preferred version, described method also includes:
11) in the open in mine blasting engineering or ditch excavation project, by measuring the rock mass sound of different step level
Speed, it is thus achieved that explosive and the Impedance matching situation of rock in work progress, thus be preferred explosive kind, design explosive
Performance, adjustment data of explosive filled provide foundation.
As a kind of preferred version, step 2) in, the degree of depth in described test big gun hole is more than or equal to a shoulder height.
As a kind of preferred version, step 2) in, the described buried depth determining fire point, particularly as follows:
When using the big gun hole of normal blast working as when testing big gun hole, the buried depth of fire point is this test big gun hole
The degree of depth；When selecting to bore a big gun hole near the position of side slope as test big gun hole, the buried depth of fire point is test
The degree of depth in big gun hole deducts the 1/2 powder charge section degree of depth.
As a kind of preferred version, step 5) in, described measurement fire point and the three-dimensional coordinate of each vibration measuring point, specifically
For:
The azimuthal coordinates that the three-dimensional coordinate of fire point measures acquisition, i.e. fire point indirectly is identical with aperture, big gun hole azimuthal coordinates,
The elevation coordinate of fire point is the buried depth that aperture, big gun hole elevation deducts fire point；The three-dimensional coordinate of each vibration measuring point is straight
Connect measurement to obtain.
As a kind of preferred version, step 5) in, the three-dimensional coordinate of described fire point and each vibration measuring point utilizes total powerstation
Or GPS measures.
As a kind of preferred version, described vibration measurement instrument is vibrating sensor.
The present invention has a following beneficial effect relative to prior art:
1, the inventive method utilizes the vibration measurement instrument being arranged on varying level bench face middle and lower part, obtains vibration measurement instrument pair
Answer the vibration of base rock signal of vibration measuring point, according to two corresponding vibration measuring points range difference apart from initial hypocentral location divided by being obtained
The relative time taking vibration signal arrival vibration measuring point is poor, calculates the velocity of sound of respective regions rock mass, thus realizes multi-step
Measure while the horizontal rock mass velocity of sound.
2, the inventive method carries out the laying of multiple vibration measuring point to same hypocenter of the explosion simultaneously, and reasonable combination uses two
The data of vibration measuring point, i.e. with two vibration measuring points range difference apart from initial hypocentral location divided by the arrival obtaining vibration signal
Time difference, it is thus achieved that the velocity of sound of respective regions rock mass, as can by be arranged in test big gun hole same step level domatic on
Two vibration measuring points obtain the velocity of sound of this step rock mass, by be arranged in next step level of test big gun hole domatic on two
Individual vibration measuring point obtains the velocity of sound of next step rock mass, by same vertical plane be positioned at next step and under get out of a predicament or an embarrassing situation slope
Two benchmark vibration measuring points on face are got out of a predicament or an embarrassing situation under obtaining the velocity of sound of rock mass.
3, vibration measuring point is arranged on the exposed protolith of bench face middle and lower part by the inventive method, it is not necessary to carry out mine work
Make to arrange vibration measuring point again after protolith is exposed in platform cleaning, also there is no the interference to measuring signal of the mine work surface void slag blanket.
4, in the inventive method, vibration measuring point arrangement requirement each step domatic on benchmark vibration measuring point is set, each
At grade, this plane was the vertical of bench face in test big gun hole to benchmark vibration measuring point, other vibration measuring points with
The elevation of the benchmark vibration measuring point of same step level is basically identical, beneficially the process of experimental data and analysis, it is ensured that meter
Calculate the rock mass velocity of sound obtained to mate with the division of rock mass region.
5, the inventive method is necessary to ensure that each vibration measuring point is rock with the line of point initiation, must not have unsettled section,
So the degree of depth in test big gun hole is to be slightly larger than or to be advisable equal to a shoulder height, fire point is positioned at bottom big gun hole preferable.
6, the inventive method is applicable to the on-the-spot rock mass velocity of sound simultaneously measuring multi-step level, calculates rupturing of detecting rock
Degree, provides foundation for Analysis of Slope Stability, slope reinforcement scheme design and the design of side slope shaping blasting, it is also possible to use
The Impedance matching relation of explosive and rock and different performance in time studying ditch Excavation blasting, surface mine exploitation explosion
The total energy approach rate of the broken specific rock mass of acting after the explosive charge of parameter, thus optimum blast design, raising are quick-fried
Broken efficiency, reduction blasting cost.
Accompanying drawing explanation
Fig. 1 is the Method And Principle figure measuring the multi-step horizontal rock mass velocity of sound while the embodiment of the present invention 1.
Wherein, 1-big gun hole, 2-powder charge section, 3-blocks section, 4-priming device, the bench face of 5-this step level, 6-
The bench face of next step level, the bench face of level of getting out of a predicament or an embarrassing situation under 7-, 8-synchronous signal acquisition device.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention do not limit
In this.
Embodiment 1:
As shown in Figure 1, it is necessary first on upper step work surface bore big gun hole 1, the degree of depth in big gun hole 1 with slightly larger than or etc.
Being advisable in a shoulder height, load explosive as powder charge section 2 bottom big gun hole, top is blocking section 3；When design powder charge
When measuring more, priming device 4 is positioned at O point bottom big gun hole；When explosive payload is less, when can regard a some medicated bag as, detonate
Device 4 is positioned in the middle of medicated bag；After position, big gun hole 1 determines, benchmark vibration measuring is set on the several bench face in lower section
Point；The bench face 5 of this step level arranges benchmark vibration measuring point A, at the bench face 6 of next step level
On benchmark vibration measuring point B is set, under get out of a predicament or an embarrassing situation level bench face 7 on benchmark vibration measuring point C is set；Benchmark vibration measuring
Point A, B and C are respectively positioned on through big gun hole 1 and are perpendicular on the vertical of bench face, i.e. benchmark vibration measuring point A, B
Coplanar and vertical with bench face with vertical big gun hole with C, other vibration measuring points (vibration measuring point D and E) are arranged in same
The benchmark vibration measuring point basic one of the one or both sides of each benchmark vibration measuring point of step level, its elevation and this step level
Cause.
After vibration measuring point arranges, the degree of depth in repetition measurement big gun hole 1 and aperture coordinate, thus calculate and portal interior fire point O's
Position；The coordinate of each vibration measuring point of repetition measurement, calculates the distance of each vibration measuring point and fire point O respectively, fills in big gun hole 1
Before medicine, at set vibration measuring point location arrangements test instrunment, and synchronous signal acquisition device 8 is utilized to gather vibration signal；
After test instrunment is ready, first the bottom in big gun hole 1 fills priming device 4, then powder charge, block, network, alert
Guard against, then start synchronous signal acquisition device 8, start to record the vibration signal of each vibration measuring point simultaneously, finally assign and detonate
Order；After fire point O detonates, vibration wave is propagated and decayed to the stress wave direction peripheral rock that blast produces, and
Line along fire point O Yu each vibration measuring point travels to each vibration measuring point eventually, more early collects apart from the nearest vibration measuring point
Vibration signal.
After on-the-spot test, carry out data process and analysis, calculate according to the three-dimensional coordinate of fire point O and each vibration measuring point
The length of propagation path OA, OB, OC, OD, OE of vibration wave, reads vibration measurement instrument the most respectively and starts record
Data arrive benchmark vibration measuring point A, B, C and the time t of other vibration measurings point D, E to blasting vibration waveA、tB、tC、tD
And tE；According to relevant two the vibration measuring points range difference apart from initial hypocentral location divided by the time of advent obtaining vibration signal
Difference obtains the velocity of sound of relevant range rock mass, by be arranged in test big gun hole same step level domatic on A and D two
Vibration measuring point obtains the velocity of sound of this step rock mass, by be arranged in test big gun hole next step level domatic on B and E two
Individual vibration measuring point obtains the velocity of sound of next step rock mass, by same vertical plane be positioned at next step and under get out of a predicament or an embarrassing situation slope
Two benchmark vibration measuring point B and C on face get out of a predicament or an embarrassing situation under obtaining the velocity of sound of rock mass.Therefore, velocity of sound C of this step rock massOn=(OD OA)/(tD–tA), velocity of sound C of next step rock massIn=(OE OB)/(tE–tB), lower
Velocity of sound C of step rock massUnder=(OC OB)/(tC–tB)。
After recording adjacent three step rock mass velocities of sound, can contrast with the velocity of sound of each step sillar sample,
Judge the level of breakage of each step rock mass；When rock mass is completely without crack, the difference of two velocities of sound is 0, level of breakage system
Number is also 0；Along with the increase of rock masses fracturing degree, the level of breakage coefficient of surveyed rock mass will be gradually increased；So, this
Invention can as Analysis of Slope Stability, slope reinforcement scheme design and follow-up side slope molding control explosion design (as
Presplit blasting, photoface exploision) important evidence.
It is contemplated that the present invention may be use with during research ditch explosion, surface mine bench blasting explosive and rock matching relationship and
The total energy approach rate of the broken specific rock mass of acting after the explosive charge of different performance parameter, thus optimum blast design,
Improve blasting efficiency, reduce blasting cost；Because during rock blasting, it is generally recognized that the natural impedance of explosive and rock is mutually
Timing, the energy that explosive passes to rock is most, and the strain value caused in rock is maximum, can obtain preferable explosion
Effect；In order to obtain the match condition of explosive and wave impedance of rock, need to measure respectively explosive density, explosion velocity of explosive,
Rock density and four physical quantitys of rock acoustic；The present invention can measure the velocity of sound of the stope horizontal rock mass of difference step, from
And it is preferred explosive kind, design explosive property, adjustment data of explosive filled offer foundation during blast working, fully send out
When waving explosive charge, the energy of release carrys out fragmented rock body, it is achieved fine explosion and environmental protection explosion.
Embodiment 2:
The method measuring the multi-step horizontal rock mass velocity of sound while the present embodiment, explodes as focus using a test big gun hole,
Arranging that multiple vibration measuring point gathers vibration signal, reasonable combination uses the vibration signal time of advent of two vibration measuring points simultaneously,
I.e. obtain relevant with two vibration measuring points range difference apart from initial hypocentral location divided by the difference time of advent of obtained vibration signal
The velocity of sound of region rock mass, its main construction procedure is as follows:
1) test big gun hole prepares: if utilizing the big gun hole of normal blast working, and elder generation's quick-fried big gun hole in selected quick-fried district is as test big gun
Hole, in this test big gun hole, the blast of explosive is as focus, it is ensured that arrive the vibration signal of each vibration measuring point elder generation from quick-fried district
The fire point in quick-fried big gun hole (big gun hole of first detonating) sends, it is to avoid the follow-up big gun hole interference to test signal of detonating, even
Judge initial hypocentral location by accident；Otherwise, selecting to bore a big gun hole near the position of side slope, as test big gun hole, boring is deep
Degree requirement exceed shoulder height 1～2 meters be advisable；
2) blast hole depth is measured: measure the degree of depth in test big gun hole, determine the buried depth of fire point O；Normal when using
When the big gun hole of blast working is as test big gun hole, the mode detonated bottom big gun hole, the buried depth of fire point O need to be used
The degree of depth for this test big gun hole；When selecting to bore a big gun hole near the position of side slope as test big gun hole, i.e. use solely
When vertical test big gun hole is tested, its big gun hole base charge approximation point medicated bag, the buried depth of fire point O is test big gun
The degree of depth in hole deducts the 1/2 powder charge section degree of depth；
3) benchmark vibration measuring point is arranged: lay benchmark test point on this step and the most adjacent two bench faces, at this
Arrange benchmark vibration measuring point A on the bench face of step level, the bench face of next step level is arranged benchmark is surveyed
Shake a B, arranges benchmark vibration measuring point C, benchmark vibration measuring point A, B and C on the bench face of next step level
It is respectively positioned on through test big gun hole (this test big gun hole is the big gun hole being vertically arranged) and is perpendicular on the vertical of bench face,
I.e. benchmark vibration measuring point A, B and C is coplanar with test big gun hole；Wherein, benchmark vibration measuring point A, B and C are arranged in step
On the exposed protolith of domatic middle and lower part；
4) other vibration measuring points are arranged: arrange that other are surveyed in the one or both sides of each benchmark vibration measuring point of same step level
Shaking a little, other vibration measuring points and benchmark vibration measuring point are substantially at same elevation, and are arranged in the exposed former of bench face middle and lower part
On rock, each vibration measuring point has a vibration measurement instrument；
5) fire point and the three-dimensional coordinate of each vibration measuring point are measured: utilize total powerstation or GPS to measure fire point O and each
Individual vibration measuring point three-dimensional coordinate, the three-dimensional coordinate of fire point O measures acquisition, the i.e. azimuthal coordinates of fire point O indirectly
Identical with aperture, big gun hole azimuthal coordinates, the elevation coordinate of fire point O be aperture, big gun hole elevation deduct fire point embedding deeply
Degree；The three-dimensional coordinate of each vibration measuring point directly measures acquisition；
6) powder charge: according to test experiments scheme, carries out powder charge, blocks and network, it is specifically intended that instrument connection rise
Quick-fried some buried depth to determine according to testing scheme, reduces error as far as possible；
7) synchronous signal acquisition device connects: each vibration measurement instrument be connected with synchronous signal acquisition device, and starts synchronization letter
Number harvester, enters state to be measured；
8) according to shotfiring safety regulatory requirements, carry out blast warning, then assign order of detonating, after detonating, carry out safe inspection
Look into, confirm without warning can be released after potential safety hazard；
9) test data collection arranges: after detonating, and according to fire point and the three-dimensional coordinate of each vibration measuring point, calculates country rock
The length of propagation path OA, OB, OC, OD, OE of vibration signal；Read from synchronous signal acquisition device respectively
Vibration measurement instrument start to record data to vibration signal arrive benchmark vibration measuring point A, B, C and other vibration measurings point D, E time
Between, it is designated as tA、tB、tC、tDAnd tE；
10) different step rock acoustic calculate: according to being correlated with, two vibration measuring points range difference apart from initial hypocentral location removes
The time difference arrived with acquired vibration signal obtains the velocity of sound of respective regions rock mass, same by being arranged in test big gun hole
Two vibration measuring points of A and D on step level is domatic obtain the velocity of sound of this step rock mass, by being arranged under test big gun hole
Two vibration measuring points of B and E on one step level is domatic obtain the velocity of sound of next step rock mass, by same vertical plane
Be positioned at next step and under get out of a predicament or an embarrassing situation domatic on two benchmark vibration measuring point B and C obtain under get out of a predicament or an embarrassing situation the sound of rock mass
Speed.Therefore, velocity of sound C of this step rock massOn=(OD OA)/(tD–tA), velocity of sound C of next step rock massIn
=(OE OB)/(tE–tB), under get out of a predicament or an embarrassing situation velocity of sound C of rock massUnder=(OC OB)/(tC–tB)；
11) in slope project, by measuring the rock mass velocity of sound of different step level, by the velocity of sound measured and corresponding position
The velocity of sound putting sillar sample compares, and differentiates the level of breakage of rock mass with the ratio of both differences and the sillar sample velocity of sound,
Foundation is provided for slope stability analysis, reinforcement of a slope, side slope pre split explosion or design of smooth blasting；Ore deposit in the open
In mountain blasting engineering or ditch excavation project, can be by measuring the rock mass velocity of sound of different step level, it is thus achieved that construction
During the Impedance matching situation of explosive and rock, thus be preferred explosive kind, design explosive property, adjust and fill
Medicine parameter provides foundation, it is achieved fine explosion and environmental protection explosion.
The above, preferred embodiment the most of the present invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art in scope disclosed in this invention, according to technical scheme and send out
Bright design equivalent or change in addition, broadly falls into protection scope of the present invention.
Claims (9)
1. the method simultaneously measuring the multi-step horizontal rock mass velocity of sound, it is characterised in that: described method utilizes test big gun
Explosive charge bottom hole, as focus, uses the vibration measurement instrument being arranged on varying level bench face middle and lower part, obtains and surveys
The vibration of base rock signal of Vibration Meter device correspondence vibration measuring point, according to two corresponding vibration measuring points range difference apart from initial hypocentral location
The relative time arriving vibration measuring point divided by acquired vibration signal is poor, calculates the velocity of sound of respective regions rock mass, thus real
Measure while the existing multi-step horizontal rock mass velocity of sound.
A kind of method simultaneously measuring the multi-step horizontal rock mass velocity of sound the most according to claim 1, it is characterised in that:
Said method comprising the steps of:
1) if utilizing the big gun hole of normal blast working, elder generation's quick-fried big gun hole in selected quick-fried district is as test big gun hole, otherwise, selects
A big gun hole is bored, as test big gun hole near the position of side slope；
2) measure the degree of depth in test big gun hole, determine the buried depth of fire point；
3) on the bench face of this step level, benchmark vibration measuring point, cloth on the bench face of next step level are arranged
Put benchmark vibration measuring point, the bench face of next step level is arranged benchmark vibration measuring point ... the like, each
Benchmark vibration measuring point be respectively positioned on through test big gun hole and being perpendicular on the vertical of bench face, i.e. each benchmark vibration measuring point with
Test big gun hole is coplanar；Wherein, each benchmark vibration measuring point is arranged on the exposed protolith of bench face middle and lower part；
4) other vibration measuring points are arranged in the one or both sides at each benchmark vibration measuring point of same step level, other vibration measuring points
With benchmark vibration measuring point at same elevation, and being arranged on the exposed protolith of bench face middle and lower part, each vibration measuring point has
One vibration measurement instrument；
5) fire point and the three-dimensional coordinate of each vibration measuring point are measured；
6) test big gun hole is carried out powder charge；
7) each vibration measurement instrument is connected with synchronous signal acquisition device, and starts synchronous signal acquisition device, enter shape to be measured
State；
8) according to shotfiring safety regulatory requirements, carry out blast warning, then assign order of detonating；
9), after detonating, according to fire point and the three-dimensional coordinate of each vibration measuring point, the propagation path of vibration of base rock signal is calculated；
From synchronous signal acquisition device, read vibration signal respectively arrive the time of each vibration measuring point；
10) according to being correlated with what two vibration measuring points range difference apart from initial hypocentral location arrived divided by acquired vibration signal
Time difference obtains the velocity of sound of respective regions rock mass.
A kind of method simultaneously measuring the multi-step horizontal rock mass velocity of sound the most according to claim 2, it is characterised in that:
Described method also includes:
11) in slope project, by measuring the rock mass velocity of sound of different step level, by the velocity of sound measured and corresponding position
The velocity of sound putting sillar sample compares, and differentiates the level of breakage of rock mass with the ratio of both differences and the sillar sample velocity of sound,
Foundation is provided for slope stability analysis, reinforcement of a slope, side slope pre split explosion or design of smooth blasting.
A kind of method simultaneously measuring the multi-step horizontal rock mass velocity of sound the most according to claim 2, it is characterised in that:
Described method also includes:
11) in the open in mine blasting engineering or ditch excavation project, by measuring the rock mass sound of different step level
Speed, it is thus achieved that explosive and the Impedance matching situation of rock in work progress, thus be preferred explosive kind, design explosive
Performance, adjustment data of explosive filled provide foundation.
5. according to a kind of method measuring the multi-step horizontal rock mass velocity of sound described in any one of claim 2-4 simultaneously, its
It is characterised by: step 2) in, the degree of depth in described test big gun hole is more than or equal to a shoulder height.
6. according to a kind of method measuring the multi-step horizontal rock mass velocity of sound described in any one of claim 2-4 simultaneously, its
It is characterised by: step 2) in, the described buried depth determining fire point, particularly as follows:
When using the big gun hole of normal blast working as when testing big gun hole, the buried depth of fire point is this test big gun hole
The degree of depth；When selecting to bore a big gun hole near the position of side slope as test big gun hole, the buried depth of fire point is test
The degree of depth in big gun hole deducts the 1/2 powder charge section degree of depth.
A kind of method simultaneously measuring the multi-step horizontal rock mass velocity of sound the most according to claim 6, it is characterised in that:
Step 5) in, described measurement fire point and the three-dimensional coordinate of each vibration measuring point, particularly as follows:
The azimuthal coordinates that the three-dimensional coordinate of fire point measures acquisition, i.e. fire point indirectly is identical with aperture, big gun hole azimuthal coordinates,
The elevation coordinate of fire point is the buried depth that aperture, big gun hole elevation deducts fire point；The three-dimensional coordinate of each vibration measuring point is straight
Connect measurement to obtain.
A kind of method simultaneously measuring the multi-step horizontal rock mass velocity of sound the most according to claim 7, it is characterised in that:
Step 5) in, the three-dimensional coordinate of described fire point and each vibration measuring point utilizes total powerstation or GPS to measure.
9. according to a kind of method measuring the multi-step horizontal rock mass velocity of sound described in claim 1-4, any one of 7-8 simultaneously,
It is characterized in that: described vibration measurement instrument is vibrating sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610266128.1A CN105954357B (en) | 2016-04-25 | 2016-04-25 | Method that is a kind of while measuring the horizontal rock mass velocity of sound of multi-step |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610266128.1A CN105954357B (en) | 2016-04-25 | 2016-04-25 | Method that is a kind of while measuring the horizontal rock mass velocity of sound of multi-step |
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| CN105954357A true CN105954357A (en) | 2016-09-21 |
| CN105954357B CN105954357B (en) | 2019-10-11 |
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| CN201610266128.1A Active CN105954357B (en) | 2016-04-25 | 2016-04-25 | Method that is a kind of while measuring the horizontal rock mass velocity of sound of multi-step |
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Cited By (7)
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| CN107152964A (en) * | 2017-07-11 | 2017-09-12 | 北京市市政三建设工程有限责任公司 | Blasting vibration monitoring method for deeply-buried underground water supply pipeline in tunnel step method construction |
| CN108226286A (en) * | 2016-12-14 | 2018-06-29 | 波音公司 | The nano energy application of aircraft |
| CN109270243A (en) * | 2018-07-26 | 2019-01-25 | 重庆交通大学 | Frozen-soil Blasting model assay systems and its test method |
| CN109613607A (en) * | 2018-12-04 | 2019-04-12 | 保利新联***工程集团有限公司 | A kind of difference height difference attenuation of seismic waves propagation test method |
| CN110297039A (en) * | 2018-03-23 | 2019-10-01 | 中铁四局集团有限公司 | Sound wave detection method for tunnel surrounding rock blasting damage depth |
| CN110360907A (en) * | 2019-07-31 | 2019-10-22 | 中冶集团资源开发有限公司 | A kind of side slope step expansion side blasting method throughout broken jointed rock mass |
| CN111189534A (en) * | 2020-01-13 | 2020-05-22 | 长沙矿山研究院有限责任公司 | Method for improving accuracy of aligning blasting vibration meter sensor to blasting core |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108226286A (en) * | 2016-12-14 | 2018-06-29 | 波音公司 | The nano energy application of aircraft |
| CN107152964A (en) * | 2017-07-11 | 2017-09-12 | 北京市市政三建设工程有限责任公司 | Blasting vibration monitoring method for deeply-buried underground water supply pipeline in tunnel step method construction |
| CN110297039A (en) * | 2018-03-23 | 2019-10-01 | 中铁四局集团有限公司 | Sound wave detection method for tunnel surrounding rock blasting damage depth |
| CN109270243A (en) * | 2018-07-26 | 2019-01-25 | 重庆交通大学 | Frozen-soil Blasting model assay systems and its test method |
| CN109270243B (en) * | 2018-07-26 | 2021-11-30 | 重庆交通大学 | Frozen soil blasting model test system and test method thereof |
| CN109613607A (en) * | 2018-12-04 | 2019-04-12 | 保利新联***工程集团有限公司 | A kind of difference height difference attenuation of seismic waves propagation test method |
| CN110360907A (en) * | 2019-07-31 | 2019-10-22 | 中冶集团资源开发有限公司 | A kind of side slope step expansion side blasting method throughout broken jointed rock mass |
| CN111189534A (en) * | 2020-01-13 | 2020-05-22 | 长沙矿山研究院有限责任公司 | Method for improving accuracy of aligning blasting vibration meter sensor to blasting core |
| CN111189534B (en) * | 2020-01-13 | 2020-12-25 | 长沙矿山研究院有限责任公司 | Method for improving accuracy of aligning blasting vibration meter sensor to blasting core |
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