CN204783119U - Underground water seal oil cave depot microseism monitoring system - Google Patents
Underground water seal oil cave depot microseism monitoring system Download PDFInfo
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- CN204783119U CN204783119U CN201520513708.7U CN201520513708U CN204783119U CN 204783119 U CN204783119 U CN 204783119U CN 201520513708 U CN201520513708 U CN 201520513708U CN 204783119 U CN204783119 U CN 204783119U
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- cave depot
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Abstract
The utility model provides an underground water seal oil cave depot microseism monitoring system, be in including array distribution a plurality of acceleration sensor of group on the water curtain tunnel of cave depot connect in acceleration sensor's signal acquisition element, signal acquisition element is connected with signal processing unit, signal processing unit remote connection is in the control unit, signal acquisition element gathers acceleration sensor's signal and carries and give signal processing unit, signal processing unit analysis processes the signal conveys the result to the control unit. Through measurings of slight shocking of the danger area to secret water seal oil cave depot excavation " face ", be favorable to progressively accumulating and improve under the complicated geological conditions stability during the operation of water seal oil cave depot and monitor and the analytic technique, the timely monitoring of the circumstances of breaking that declines to cave depot country rock rock mass probably appears has sustainable economic benefits and social, for the construction condition of providing convenience of the large -scale secret oil cave depot of china.
Description
Technical field
The utility model relates to microseismic detection technology, particularly relates to a kind of underground water seal oil cave depot Microseismic monitoring system.
Background technology
The application that current China rock microseism technology is applied in underground water seal oil cave depot monitoring aspect there is no precedent.Along with the increase gradually of underground cavern project scale, Stability of Excavation Surrounding problem more and more becomes one of key factor affecting the success or failure of water seal oil cave depot engineering.And because of its special engineering type---high side wall, not lining cutting, large span and uncertain structure face etc., cause the cave depot rock mass state research work in excavation construction and operation process to be had difficulty in walking.So far also unified understanding is not formed for the surrounding rock stability mechanism under this complex geological condition of water seal cave depot and operating mode.The micro rupture situation that during how effectively utilizing On Microseismic Monitoring Technique to carry out excavating strong unloading process and later stage operation, underground water seal oil cave depot Rock Mass may occur effectively is monitored, thus the correct judgement improved cave depot country rock security and stability, still lack relevant research so far both at home and abroad.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of underground water seal oil cave depot Microseismic monitoring system, can the Real-Time Monitoring micro rupture situation that underground water seal oil cave depot Rock Mass may occur during the strong unloading process of excavation and later stage operation.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of underground water seal oil cave depot Microseismic monitoring system, comprise the some group acceleration transducers of array distribution on the water curtain tunnel of described cave depot, be connected to the signal gathering unit of acceleration transducer, described signal gathering unit is connected with signal processing unit, described signal processing unit is long-range is connected to control unit, described signal gathering unit gathers the signal of acceleration transducer and flows to signal processing unit, result is also sent to control unit by signal described in described signal processing unit analyzing and processing.
Further, often organizing described acceleration transducer is six, and is single-axis acceleration sensors and/or 3-axis acceleration sensor.
Further, described signal gathering unit comprises the line concentration interface box be connected with acceleration transducer, and the digital to analog converter be connected with line concentration interface box, and described digital to analog converter is connected with storage device, and described storage device is connected to described signal processing unit.
Further, described signal processing unit comprises the data collection station be connected with storage device, and is connected to the APU of data collection station, and described APU is connected to described control unit.
Further, the stainless steel that described acceleration transducer is 32mm by diameter is made, and its frequency acquisition scope is 50 ~ 10kHz, and sensitivity is 30v/g.
Further, described digital to analog converter is 24 figure place weighted-voltage D/A converters.
Further, often organize described acceleration transducer to be distributed on the water curtain tunnel in the face region of described cave depot.
The advantage that the utility model has and good effect are: by carrying out microseismic detection to the deathtrap of underground water seal oil cave depot excavation " face ", be conducive to progressively accumulating and improve the STABILITY MONITORING under complex geological condition during the operation of water seal oil cave depot and analytical technology, the micro rupture situation that cave depot Rock Mass may occur is monitored timely, have continuable economic benefit and social benefit, the construction for Chinese large-sized underground petroleum cave depot is provided convenience condition.
Accompanying drawing explanation
Fig. 1 is structural principle schematic diagram of the present utility model
Fig. 2 is the structural representation in the face region of the utility model underground water seal oil cave depot;
In figure:
1, water curtain tunnel; 2, acceleration transducer; 3, signal gathering unit; 4, signal processing unit; 5, control unit; 31, line concentration interface box; 32, digital to analog converter; 33, storage device; 41, data collection station; 42, APU.
Detailed description of the invention
Below in conjunction with accompanying drawing, specific embodiment of the utility model is illustrated:
In order to realize timely monitoring to the face region of underground water seal oil cave depot or the microseism rupture event in other regions to be measured and analysis, the utility model provides a kind of underground water seal oil cave depot Microseismic monitoring system, as shown in Figure 1-2, comprise the some group acceleration transducers 2 of array distribution on the water curtain tunnel 1 of described cave depot, acceleration transducer 2 is for responding to the microseism in region to be measured, it has been connected to signal gathering unit 3, signal gathering unit 3 is connected with signal processing unit 4, signal processing unit 4 is long-range is connected to control unit 5, the concrete above-mentioned course of work is: first, acceleration transducer 2 is had to monitor the microseism situation in region to be measured, produce microseismic signals and pass to signal gathering unit 3, signal gathering unit 3 collects the signal of acceleration transducer 2 transmission and flows to signal processing unit 4, signal processing unit 4 carries out analyzing and processing to this signal, be analyzed with the P ripple in the threshold range of setting, when monitor signal is in this threshold range, result is sent to control unit 5 by signal processing unit 4, and have control unit 5 that result is shown to monitoring personnel.By the way, effectively can carry out to the deathtrap of face the monitoring that microseism breaks, prevent the situation of follow-up danger to occur on the one hand, another aspect can improve the correct judgement to cave depot country rock security and stability.
It should be noted that: above-mentioned face region is the excavation tunnel work plane of constantly pushing ahead, and this region is relatively dangerous, therefore need to carry out the monitoring of breaking for microseism to this region.Concrete, this face region is the regional extent taking advantage of 200m to take advantage of 100m to be formed with 300m by multiple water curtain tunnel 1.
In the present embodiment, often organizing acceleration transducer 2 is six, all be arranged on (with reference to shown in Fig. 2) on the water curtain tunnel 1 in above-mentioned face region, and each acceleration transducer 2 adopts single-axis acceleration sensors and/or 3-axis acceleration sensor, wherein single-axis acceleration sensors advantage of lower cost, and reusable, can locate accurately microseismic event; 3-axis acceleration sensor can obtain three-dimensional localization data, except positioning microseismic event, also can calculate earthquake magnitude size and other a large amount of source parameters of microseismic event according to this.Thus above-mentioned single shaft or 3-axis acceleration sensor can be adopted to monitor, also can in conjunction with both monitor.
As preferred technical scheme, acceleration transducer 2 is that the stainless steel being 32mm by diameter is made, and its frequency acquisition scope is 50 ~ 10kHz, and sensitivity is 30v/g.24h can be carried out to the micro rupture event in face region to monitor continuously, the multinomial focal shock parameter information such as the dynamic space-time data of Real-time Obtaining microseismic event.
In the present embodiment, signal gathering unit 3 comprises and the above-mentioned line concentration interface box 31 organized acceleration transducer 2 and be connected more, and collection connects the line of all acceleration transducers 2; Line concentration interface box 31 is connected with digital to analog converter 32, the data signal of monitoring for degree of will speed up sensor 2 is converted to analog signal, this digital to analog converter 32 is connected with storage device 33, storage device 33 is connected to signal processing unit 4, the analog signal storage that digital to analog converter 32 is changed by storage device 33, and by signal processing unit 4 collection analysis and process.The present embodiment preferably adopts 24 figure place weighted-voltage D/A converters.
Further, signal processing unit 4 comprises the data collection station 41 be connected with storage device 33, for the analog signal that receiving/storing device 33 stores, data collection station 41 is connected with APU 42, APU 42 is connected to control unit 5, analog signal for being stored by data collection station 41 carries out analyzing and processing, and result is passed to control unit 5, presents to monitoring personnel.
In the present embodiment, APU 42, before operation, needs the setting carrying out threshold range, and concrete by adopting Knock test of manually fixing a point, can measure monitored area rock mass velocity model.Concrete, fixed point Knock test is carried out to the multiple water curtain tunnels 1 in region to be measured, waveform recording is chosen preferably as effectively knocking event from repeatedly knock, such as, according to water seal cave depot areal geology prospecting data, certain place rock mass elastic wave propagation speed is 4400m/s ~ 6100m/s, by carrying out waveform analysis to artificial fixed point Knock test, and done to optimize and revise to the P wave-wave speed of APU 42, initialization system P wave-wave speed threshold range is 18 kinds of different velocities of wave between 4400m/s ~ 6100m/s respectively.The analog signal change digital to analog converter 32 and above-mentioned threshold range contrast, and for the analog signal fallen in this threshold range, result is passed to control unit 5 by APU 42, presents to monitoring personnel.
By above-mentioned Microseismic monitoring system, the microseism rupture event in monitoring underground water seal oil cave depot face region that can be real-time or region to be measured, is conducive to improving the correct judgement to cave depot country rock security and stability.
Above embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model scope change and improve, and all should still belong within this patent covering scope.
Claims (7)
1. underground water seal oil cave depot Microseismic monitoring system, it is characterized in that: comprise the some group acceleration transducers (2) of array distribution on the water curtain tunnel (1) of described cave depot, be connected to the signal gathering unit (3) of acceleration transducer (2), described signal gathering unit (3) is connected with signal processing unit (4), described signal processing unit (4) is long-range is connected to control unit (5), described signal gathering unit (3) gathers the signal of acceleration transducer (2) and flows to signal processing unit (4), result is also sent to control unit (5) by signal described in described signal processing unit (4) analyzing and processing.
2. underground water seal oil cave depot Microseismic monitoring system according to claim 1, is characterized in that: often organizing described acceleration transducer (2) is six, and is single-axis acceleration sensors and/or 3-axis acceleration sensor.
3. underground water seal oil cave depot Microseismic monitoring system according to claim 2, it is characterized in that: described signal gathering unit (3) comprises the line concentration interface box (31) be connected with acceleration transducer (2), and the digital to analog converter (32) to be connected with line concentration interface box (31), described digital to analog converter (32) is connected with storage device (33), and described storage device (33) is connected to described signal processing unit (4).
4. underground water seal oil cave depot Microseismic monitoring system according to claim 3, it is characterized in that: described signal processing unit (4) comprises the data collection station (41) be connected with storage device (33), and being connected to the APU (42) of data collection station (41), described APU (42) is connected to described control unit (5).
5. underground water seal oil cave depot Microseismic monitoring system according to claim 2, it is characterized in that: the stainless steel that described acceleration transducer (2) is 32mm by diameter is made, its frequency acquisition scope is 50 ~ 10kHz, and sensitivity is 30v/g.
6. underground water seal oil cave depot Microseismic monitoring system according to claim 3, is characterized in that: described digital to analog converter (32) is 24 figure place weighted-voltage D/A converters.
7. underground water seal oil cave depot Microseismic monitoring system according to claim 1, is characterized in that: often organize described acceleration transducer (2) and be distributed on the water curtain tunnel (1) in the face region of described cave depot.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520513708.7U CN204783119U (en) | 2015-07-15 | 2015-07-15 | Underground water seal oil cave depot microseism monitoring system |
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| CN201520513708.7U CN204783119U (en) | 2015-07-15 | 2015-07-15 | Underground water seal oil cave depot microseism monitoring system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107861157A (en) * | 2017-10-27 | 2018-03-30 | 福州大学 | A kind of underground water seal cave depot runs phase micro seismic monitoring method |
| CN109297883A (en) * | 2018-11-27 | 2019-02-01 | 浙江海洋大学 | Measure the circulation re-injection experimental provision of water seal petroleum cave depot reinjected water water quality indicator |
| CN109374506A (en) * | 2018-11-29 | 2019-02-22 | 浙江海洋大学 | A kind of device of dynamic monitoring Large Underground water seal pit hole library water curtain moisturizing effect |
-
2015
- 2015-07-15 CN CN201520513708.7U patent/CN204783119U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107861157A (en) * | 2017-10-27 | 2018-03-30 | 福州大学 | A kind of underground water seal cave depot runs phase micro seismic monitoring method |
| CN107861157B (en) * | 2017-10-27 | 2019-07-09 | 福州大学 | A kind of underground water seal cave depot operation phase micro seismic monitoring method |
| CN109297883A (en) * | 2018-11-27 | 2019-02-01 | 浙江海洋大学 | Measure the circulation re-injection experimental provision of water seal petroleum cave depot reinjected water water quality indicator |
| CN109374506A (en) * | 2018-11-29 | 2019-02-22 | 浙江海洋大学 | A kind of device of dynamic monitoring Large Underground water seal pit hole library water curtain moisturizing effect |
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