CN102562164A - Flood prevention dam system safety monitoring method for blasting of opencast coal mining area and monitoring system - Google Patents
- ️Wed Jul 11 2012
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Publication number
- CN102562164A CN102562164A CN2011104363941A CN201110436394A CN102562164A CN 102562164 A CN102562164 A CN 102562164A CN 2011104363941 A CN2011104363941 A CN 2011104363941A CN 201110436394 A CN201110436394 A CN 201110436394A CN 102562164 A CN102562164 A CN 102562164A Authority
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- China Prior art keywords
- dam
- dam body
- sensing unit
- explosion
- blasting Prior art date
- 2011-12-22 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.)
- Granted
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000003245 coal Substances 0.000 title claims description 14
- 238000005065 mining Methods 0.000 title claims description 9
- 238000005422 blasting Methods 0.000 title abstract description 14
- 230000002265 prevention Effects 0.000 title abstract 3
- 238000004880 explosion Methods 0.000 claims description 15
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 230000001133 acceleration Effects 0.000 claims description 6
- 230000003321 amplification Effects 0.000 claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Testing Or Calibration Of Command Recording Devices (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a flood prevention dam system safety monitoring method which comprises the steps as follows: measuring points are arranged in preset positions of dam bodies of a flood prevention dam system; sensing units are installed at the measuring points and used for monitoring correlation data of the dam bodies; correlation data of the dam bodies sensed by the sensing units are transmitted to an amplifying converting unit so as to amplify and convert the data; and vibration wave signals are transmitted to a recording device through the amplifying converting unit. The invention further discloses a system for monitoring the dam system dynamically, wherein the system comprises the sensing units, the amplifying converting unit and the recording device. Through the adoption of the method and the system, the vibration that is generated in each blasting can be detected accurately, and the characteristics, the propagation rule, the influence on a dam, the damage mechanism and the like of blasting earthquake waves can be analyzed and mastered through the monitoring of blasting vibration, so that the safety operation for earthwork stripping loosening blasting of a whole strip mine can be guided.
Description
Technical field
The present invention relates to the safety monitoring method and the monitoring system of flood dam system, relating in particular to a kind of flood dam that is used for the strip coal mining district is safety monitoring method and monitoring system.
Background technology
Along with the Chinese society rapid development of economy, to the increase day by day of energy demand, safe coal, high-efficiency mining become the important topic of coal industry.Strip mining transformation has safety, efficient, resource recovery advantages of higher, and the colliery that is located in zone, dark steep gully realizes that opencast prerequisite is exactly must system to resolve the problem of waterproof, flood control.Therefore, often need build flood dam system in the bank.
Be located in the open coal mine in dark steep gully district, catchment area is big, in case the meteorological condition that rainfall is concentrated occurs, flood dam system builds and the safety guarantee condition that just necessitates.
And; The colliery adopts pinpoint blasting to carry out coal mining more at present; The scale of usually each pinpoint blasting is 1200-1500 tons of explosives, and quick-fried offset is very near from opencut, and its explosion influence can directly involve Ba Qu; Security and stability and reliability that the blasting vibration that ultra-large explosion produces impacts flood dam can produce significant impact, and then make the safe and efficient production of open coal mine have bigger potential risk.
Summary of the invention
To the defective of prior art, the purpose of this invention is to provide a kind of can the dynamic monitoring dam be the method and system of safety under strong open coal mine concussion of blasting condition.
Flood dam provided by the invention is that safety monitoring method comprises: on the precalculated position of each dam body that flood dam is, measuring point is set, on each measuring point, sensing unit is installed, be used to monitor the relevant parameter of dam body; With sensing unit senses to vibration wave be sent to the amplification converter unit so that the signal that receives is amplified and changes; The vibration wave signal is sent to tape deck through amplifying converter unit.
The present invention also provides the system of a kind of dynamic monitoring dam system, and said system comprises sensing unit, amplifies converter unit and tape deck, and wherein, an end of sensing unit is connected with dam body, is used to detect the relevant parameter of dam body; The other end with amplify converter unit and be connected so that the signal that receives is amplified and changes.Amplify converter unit and be connected, carry out record so that the signal after will amplifying and change is delivered to tape deck with tape deck.
With respect to prior art; Adopting flood dam of the present invention is safety monitoring method and system; The dam body vibration that produces in the time of can be to each explosion detects accurately; Through the monitoring of blasting vibration, can analyze and grasp the characteristic, propagation law of attenuation of seismic waves and to dam body influence and failure mechanism etc., thereby instruct the whole opencut earthwork to peel off the loosening blasting safety work.
Description of drawings
Fig. 1 is that the flood dam of a kind of specific embodiment of the present invention is the flow chart of safety monitoring method;
Fig. 2 is that the flood dam of a kind of specific embodiment of the present invention is the structured flowchart of safety monitoring system;
Fig. 3 is the position view of the measuring point that on dam body, is provided with in a kind of specific embodiment of the present invention.
The specific embodiment
As shown in the figure, be in the safety monitoring method at the flood dam of a kind of specific embodiment of the present invention, comprise the steps:
Monitoring for dam body mainly is the vibration of monitoring dam body, and the physical quantity that characterizes the vibration of dam body comprises: speed, acceleration, displacement or the like.Consider to monitor the vibration of dam structure with monitoring variables such as speed, acceleration in the technical scheme of blasting vibration in the present invention.
At first,, on the precalculated position of each dam body that flood dam is, measuring point is set, on each measuring point, sensing unit is installed in step 101.That is, on the position of needs (for example the side slope position of dam body is the Other Dangers positions), measuring point is set.Sensing unit can comprise the sensor element that one or more are fit to, and preferably can comprise in water level detecting element, seepage flow detecting element, velocity sensor, acceleration transducer, the displacement detector one or more.Said sensor is used to monitor the water level of dam body and the vibration velocity of seepage flow and measuring point.
In a kind of preferred implementation of the present invention, as shown in Figure 3, be provided with ten measuring points, select five measuring points wherein to monitor: the center line along dam crest is arranged three measuring points, two measuring points is set, i.e. first measuring point 1 among Fig. 3 and the 3rd measuring point 3 at the dam body two ends; A measuring point is set, i.e. second measuring point 2 among Fig. 3 at the dam body center.In addition; Base fabric is put two measuring points on the dam; Promptly be positioned at the middle point vertical line of dam body center line and two positions on the dam foundation outer rim intersection point; Be the 4th measuring point 4 and the 5th measuring point 5 among Fig. 3, represented the arrival bearing in quick-fried district of first open coal mine or the quick-fried district of second open coal mine respectively and removed the substrate measuring point of ripple direction for these 2.On each measuring point, corresponding sensor has been installed all.
Preferably, on selected representative measuring point, bury sensor underground, set the maximum sensor of vibration velocity for triggering sensor, preferably, the sensor of on the measuring point nearest apart from the blast area, installing is set to trigger sensor.After the triggering sensor detects shock wave, trigger the residue all the sensors through radio transmitting device, the vibration parameters at different structure positions such as research dam body base, middle part, top.In this preferred version,, therefore practiced thrift the memory space of tape deck greatly owing to set the threshold value of record.
Under the blasting vibration, the bearing capacity of dam body will inevitably reduce, and can adopt the method for in situ test to carry out the bearingtest of dam body, and bearingtest is used for the peak load of confirming that dam body can be born, mainly measures the dam body shear-carrying capacity.SEA LEVEL VARIATION exist under the seepage flow situation with frequent vibration under, the bearing capacity of dam body can reduce.In a kind of specific embodiment, can adopt vane shear test to measure the dam body shear-carrying capacity.Vane shear test is a kind of in situ test of measuring soft clay soil shear strength with four-bladed vane; The process of this test is: be pressed into four-bladed vane in the weak soil of foot of hole by boring; Rotate with even velocity; Record moment required when rotating four-bladed vane, destroy, thereby calculate the shear strength of being unearthed until the soil body.Shear strength by vane-shear test records is represented native natural intensity.
After explosion was implemented in the colliery, the vibration wave that explosion produces can reach sensing unit.After sensing unit receives vibration wave, convert vibration signal into the signal of telecommunication, and arrive follow-up components and parts through corresponding cable transmission.Sensing unit with amplify converter unit and be connected so that the signal that receives is amplified and changes.
In step 102, the vibration wave that sensing unit is received is sent to and amplifies converter unit and amplify and change.It is for the ease of the subsequent treatment parts signal to be handled that vibration signal is amplified with conversion.Processing and amplifying for example comprises the increase to signal amplitude, and conversion process comprises carries out processing such as analog-to-digital conversion to the signal of telecommunication.
In step 103, the signal after amplification and the conversion is sent to tape deck, signal is stored, so that carry out subsequent analysis and processing.Said subsequent analysis can comprise vibration wave is transported to and carries out waveform analysis on the computer with handling, and calculates vibration velocity or accekeration, analyzes whether overshoot value.
It is safety monitoring system that Fig. 2 shows the disclosed flood dam of a kind of specific embodiment of the present invention, comprises
sensing unit201, amplifies
converter unit202 and tape deck 203.Wherein, an end of
sensing unit201 is connected with dam body, is used to detect the relevant parameter of dam body, and being connected of
sensing unit201 and dam body can realize through mode such as burying underground; The other end with
amplify converter unit202 and be connected so that the signal that receives is amplified and changes.Amplify
converter unit202 and be connected, carry out record so that the signal after will amplifying and change is delivered to tape deck with tape deck 203.
201 is used to monitor the parameter of each dam body of dam system; Sensing unit comprises various suitable sensor elements, for example can comprise in water level detecting element, seepage flow detecting element, velocity sensor, acceleration transducer, the displacement detector one or more.Said sensor is mainly used in the water level of monitoring dam body and the vibration velocity of seepage flow and measuring point.
The water level detecting element can be a gauge, monitors the water body height in the dam body through gauge.Gauge fixedly is built on the corresponding measuring point in the dam body, through reading the waterlevel data that water level on the scale obtains corresponding measuring point.
The seepage flow testing element is used to monitor seepage pressure, and the seepage flow detecting element can be a pressure sensor, and the water in the dam body not only can produce lateral pressure to dam body, and because the seepage pressure that water seepage flow can produce.
Displacement detector is used to detect the displacement that dam body takes place under the explosion situation.Displacement detector can be realized through the GPS device, detects dam body through the GPS device and changes in the explosion front-back direction, thus the displacement of calculating dam body.
Amplify
converter unit202 and can comprise amplifying circuit and signal conversion circuit, for example amplifier, analog to digital conversion circuit or the like.An end that amplifies
converter unit202 is connected with
sensing unit201, and the other end that amplifies
converter unit202 is connected with tape deck 203.
Tape deck 203 can be any suitable signal record memory device, and preferably, said tape deck can be equipment such as EXP3850 type blasting vibration recorder, TOPBOX type explosion automatic recorder.Tape deck 203 has data-in port, said data-in port with amplify
converter unit202 and be connected, be used to receive the signal after amplification, the conversion and said signal write down, store.
Although the present invention describes through above-mentioned preferred embodiment, its way of realization is not limited to above-mentioned embodiment.Should be realized that under the situation that does not break away from purport of the present invention those skilled in the art can make different variations and modification to the present invention.
Claims (6)
1. a flood dam that is used for the explosion of strip coal mining district is a safety monitoring method, it is characterized in that, said method comprising the steps of:
A. on the precalculated position of each dam body of flood dam system, a plurality of measuring points are set, the arrival bearing that said measuring point is arranged on explosion wave with go on each measuring point, sensing unit to be installed on the ripple direction, be used for dam body related data after the explosion of sensing bank;
B. after the explosion of bank, the dam body related data that senses is sent to the amplification converter unit, so that said data are amplified and changed, to generate the vibration wave signal;
C. the vibration wave signal is sent to tape deck, and said vibration wave signal is carried out record at predetermined instant.
2. method according to claim 1; It is characterized in that; Said step c comprises: when reaching predetermined value with the vibration wave signal that related data produced of the nearest sensing unit of the blow-up point in strip coal mining district on the arrival bearing in explosion, and the vibration wave data of beginning all sensing units of record in tape deck.
3. method according to claim 1 and 2 is characterized in that said sensing unit comprises one or more in velocity sensor, acceleration transducer, the displacement detector.
4. a flood dam that is used for the strip coal mining district is a safety monitoring system, it is characterized in that, comprising: sensing unit, amplification converter unit and tape deck, and wherein, an end of sensing unit is connected with dam body, is used to detect the related data of dam body; The other end with amplify converter unit and be connected amplify and change so that said data are sent to the amplification converter unit; Amplify converter unit and be connected, carry out record so that the signal after will amplifying and change is delivered to tape deck with tape deck.
5. system according to claim 1 is characterized in that said sensing unit comprises one or more in velocity sensor, acceleration transducer, the displacement detector.
6. system according to claim 5 is characterized in that, the arrival bearing of explosion with go on the ripple direction sensing unit to be set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110436394 CN102562164B (en) | 2011-12-22 | 2011-12-22 | Flood prevention dam system safety monitoring method for blasting of opencast coal mining area and monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110436394 CN102562164B (en) | 2011-12-22 | 2011-12-22 | Flood prevention dam system safety monitoring method for blasting of opencast coal mining area and monitoring system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102562164A true CN102562164A (en) | 2012-07-11 |
| CN102562164B CN102562164B (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110436394 Active CN102562164B (en) | 2011-12-22 | 2011-12-22 | Flood prevention dam system safety monitoring method for blasting of opencast coal mining area and monitoring system |
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| CN104165688A (en) * | 2014-08-06 | 2014-11-26 | 中钢集团马鞍山矿山研究院有限公司 | Method for fixedly installing mine blasting vibration testing sensors |
| CN107165678A (en) * | 2017-07-11 | 2017-09-15 | 北京市政建设集团有限责任公司 | Blasting vibration monitoring method for deeply-buried underground water supply pipeline |
| CN110114644A (en) * | 2017-02-03 | 2019-08-09 | 松下知识产权经营株式会社 | Survey shake device and the safety device using survey shake device |
| CN110736537A (en) * | 2019-10-25 | 2020-01-31 | 长沙矿山研究院有限责任公司 | A method for measuring the vibration of open-pit stope blasting |
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| CN107165678A (en) * | 2017-07-11 | 2017-09-15 | 北京市政建设集团有限责任公司 | Blasting vibration monitoring method for deeply-buried underground water supply pipeline |
| CN110736537A (en) * | 2019-10-25 | 2020-01-31 | 长沙矿山研究院有限责任公司 | A method for measuring the vibration of open-pit stope blasting |
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| 2013-06-05 | C14 | Grant of patent or utility model | |
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