CN111708091A - Geological radar real-time detection alarm system and method - Google Patents
Geological radar real-time detection alarm system and method Download PDFInfo
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- CN111708091A CN111708091A CN202010642923.2A CN202010642923A CN111708091A CN 111708091 A CN111708091 A CN 111708091A CN 202010642923 A CN202010642923 A CN 202010642923A CN 111708091 A CN111708091 A CN 111708091A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/12—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/38—Processing data, e.g. for analysis, for interpretation, for correction
Abstract
The invention aims to provide a geological radar real-time detection alarm system and a geological radar real-time detection alarm method, wherein the system comprises the following steps: the transmitting unit is used for transmitting electromagnetic waves to a geological zone to be detected through a transmitting antenna; the receiving unit is used for receiving an echo signal through a receiving antenna, wherein the echo signal is a reflected signal of the electromagnetic wave reflected by the geological zone; the signal analysis unit is used for processing and analyzing the echo signals and judging the risk level of the geological zone; and the alarm unit is used for carrying out corresponding risk prompt according to the risk grade of the geological zone. By the geological radar real-time detection alarm system and the geological radar real-time detection alarm method, the risk level of a geological zone can be detected in real time in the tunnel field construction process, corresponding alarm prompt is carried out, and major safety accidents in field construction are avoided.
Description
Technical Field
The invention relates to the technical field of geological exploration, in particular to a geological radar detection alarm system and a geological radar detection alarm method.
Background
In the prior art, before tunnel construction, advanced geological forecast of tunnels is required, geological conditions in front of rock-soil body excavation faces of underground engineering such as tunnels and tunnels are detected in advance, geological information such as structures, properties and states of the rock-soil body in front, occurrence conditions of underground water, gas and the like and ground stress conditions is mastered before construction, guidance is provided for further construction, geological disasters such as water burst, gas outburst, rock burst and large deformation are avoided in the construction process, and construction safety and smoothness are guaranteed. However, the advance geological forecast of the tunnel only knows the geological conditions before the tunnel excavation, and can only judge the possibility of occurrence of geological disasters such as water burst, gas outburst, rock burst and the like, and if sudden abnormal conditions occur in the real-time tunnel excavation process, the disastrous accidents can still be caused.
Disclosure of Invention
The invention aims to provide a real-time detection alarm system and a real-time detection alarm method for a geological radar, so as to solve the problems in the prior art.
In order to achieve the above object, the present invention provides a real-time detection and alarm device for geological radar, comprising: the transmitting unit is used for transmitting electromagnetic waves to a geological zone to be detected at a preset distance through a transmitting antenna; the receiving unit is used for receiving an echo signal through a receiving antenna, wherein the echo signal is a reflected signal of the electromagnetic wave reflected by the geological zone; the signal analysis unit is used for processing and analyzing the echo signals and judging the risk level of the geological zone; and the alarm unit is used for carrying out corresponding risk prompt according to the risk grade of the geological zone.
Specifically, the processing and analyzing the echo signal to determine the risk level of the geological zone includes: judging the geological category of the geological zone according to the echo signal; if the geological category of the geological zone is a water-bearing zone or a gas zone, judging that the geological zone is in a high risk level; otherwise, judging the geological zone to be in a low risk level.
Preferably, the system further comprises: the risk simulation unit is used for carrying out geological activity dynamic simulation on the geological zone with high risk level; and the display unit is used for visually presenting the dynamically simulated content.
Preferably, the alarm unit comprises an alarm lamp and a buzzer, and is used for performing sound and light prompts with different frequencies according to the risk level of the geological zone.
Preferably, the signal analysis unit is further configured to adjust a transmission frequency of the electromagnetic wave.
On the other hand, the invention also provides a geological radar real-time detection alarm method, which is used for tunnel site construction and comprises the following steps: transmitting electromagnetic waves to a geological zone to be detected and receiving echo signals, wherein the echo signals are reflected signals of the electromagnetic waves reflected by the geological zone; processing and analyzing the echo signals, and judging the risk level of the geological zone; and carrying out corresponding risk prompt according to the risk grade of the geological zone.
Preferably, the processing and analyzing the echo signals to determine the risk level of the geological zone includes: judging the geological category of the geological zone according to the echo signal; if the geological category of the geological zone is a water-bearing zone or a gas zone, judging that the geological zone is in a high risk level; otherwise, judging the geological zone to be in a low risk level.
Preferably, the method further comprises: carrying out geological activity dynamic simulation on the geological zone with high risk level; and visually presenting the dynamically simulated content.
Preferably, the performing corresponding risk prompt according to the risk level of the geological zone includes:
and performing acousto-optic prompt with different frequencies according to the risk level of the geological zone.
Preferably, the method further comprises: adjusting the emission frequency of the electromagnetic wave.
According to the geological radar real-time detection alarm method, in the tunnel excavation construction process, the risk level of a geological zone to be detected is judged by transmitting electromagnetic waves to the geological zone and receiving echo signals, and then corresponding risk prompt is carried out according to the risk level, so that the rock mass property of the geological zone in front can be quickly judged in the construction process, for example, whether the rock mass property belongs to a high-risk water-bearing zone easy to cause water inrush or a high-risk gas zone prone to cause explosion, and whether field operators stop operating or continue excavation immediately or not is correspondingly prompted, so that disastrous accidents caused by sudden abnormal conditions in the real-time excavation process are avoided, and the safety of real-time construction is ensured.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a flowchart of a method for real-time detection and alarm of a geological radar according to an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the present invention, unless specified to the contrary, use of the terms of orientation such as "upper, lower, top, bottom" or the like are generally described with respect to the orientation shown in the drawings or the positional relationship of the components with respect to each other in the vertical, or gravitational direction.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, according to the technical solution of the present invention, the geological radar real-time detection alarm system mainly comprises the following units:
the transmitting unit is used for transmitting electromagnetic waves to a geological zone to be detected through a transmitting antenna; and the receiving unit is used for receiving an echo signal through a receiving antenna, wherein the echo signal is a reflected signal of the electromagnetic wave reflected by the geological zone.
The transmitting unit comprises a geological radar transmitter for transmitting high-frequency electromagnetic waves, and the receiving unit comprises a geological radar receiver for receiving echo signals from a geological zone; the geological zone detection principle of the geological radar is that a transmitting antenna transmits broadband short-pulse electromagnetic waves with high frequency, and the distribution of different media is determined by utilizing the broad-spectrum electromagnetic waves. For receiving a certain electromagnetic wave frequency, the receiving unit comprises a low-pass filter.
The signal analysis unit is used for processing and analyzing the echo signals and judging the risk level of the geological zone; and the alarm unit is used for carrying out corresponding risk prompt according to the risk grade of the geological zone.
Specifically, when electromagnetic waves are transmitted in a geological zone, the structure and the buried object of the geological zone are detected according to received data such as double travel time, amplitude, waveform and the like by utilizing an electromagnetic wave transmission rule; the intensity of the reflected signal is related to the wave reflection coefficient of the interface of the penetrated geological zone, and different geological zone types can be judged due to the fact that the wave reflection coefficients of different geological zones are different; the lithology detection principle of geological radar is well known to those skilled in the art and will not be described in detail herein.
And the signal analysis unit is used for processing (for example, filtering and denoising) the echo signal, analyzing lithology characteristics in a predetermined distance range according to the echo signal under the existing emission frequency, and judging the geological category of the geological zone, for example, judging occurrence conditions of rock and soil mass structures, underground water, gas and the like in the predetermined distance range according to the echo signal. Since in the field construction, if the front geological zone is a water-bearing zone or a gas zone, which easily causes major safety accidents such as water burst collapse or gas explosion on the field and threatens the safety of field construction personnel, according to the technical scheme of the invention, the signal analysis unit corresponds different lithologic geological zones to the safety level, preferably, the water-bearing zone or the gas zone to the high risk level, and other lithologic geological zones (such as a sand-flowing zone and a bedrock zone) to the low risk level, or the geotechnical characteristics capable of being safely constructed to the zero risk level, and after judging the geological category of the geological zone, the risk level of the geological zone is divided and judged, and corresponding risk prompt is performed, for example, for the high risk level, different early warning effects and manners are adopted for prompting, so that the major safety accidents can be avoided in the field construction, and the detection is rapid, the alarm is timely, and the safety of site construction is ensured.
In order to obtain more accurate detection accuracy, it is preferable that the signal analysis unit is further configured to adjust a transmission frequency of the electromagnetic wave. For example, when the emission frequency of the electromagnetic waves is less than 80MHZ, the geological zone with the depth of more than 15 meters can be accurately detected, when the emission frequency of the electromagnetic waves is 120MHZ, the geological zone with the depth of 10 meters can be accurately detected, the emission frequency of the electromagnetic waves is adjusted, and the measurement precision of the geological zone can be improved.
For example, the signal analysis unit may set the emission frequency of the electromagnetic wave to be capable of adapting to echo detection within a predetermined detection range before starting construction of a certain construction segment, and may continue to advance construction and adjust the emission frequency of the electromagnetic wave to improve detection accuracy within the predetermined detection range and avoid a risk that the detection may be unexpected due to inaccurate detection in advancing construction, where the self-adjustment of the emission frequency may be automatically completed by the signal analysis unit according to a preset program or may be adjusted according to an actual situation.
The alarm unit is used for carrying out corresponding risk prompt according to the risk level of the geological zone, giving different sound and light alarms in the face of different risk levels and reminding operators of the risk level of the geological zone in front.
According to one embodiment of the invention, the alarm unit comprises an alarm lamp and a buzzer, and is used for performing sound and light prompts with different frequencies according to the risk level of the geological zone; when a geological zone with a low risk level is detected, the alarm lamp emits green light constantly, and the buzzer does not emit sound; when a high risk level geological zone is detected, the alarm lamp emits red light and starts to flicker, the buzzer starts to sound, and when the alarm lamp is detected to be closer to the high risk level geological zone, the alarm lamp flickers more frequently, and the buzzer sounds more rapidly; therefore, the operation personnel is reminded of carrying out high-risk operation, and the occurrence of major accidents is avoided.
According to one embodiment of the invention, the real-time detection and alarm system for geological radar further comprises a risk simulation unit, which is used for dynamically simulating geological activities of geological zones with different risk levels and visually presenting the content of the dynamic simulation.
In order to ensure that in the process of excavating the tunnel, when an operator encounters a high-risk-level geological zone, the structure of the high-risk-level geological zone is better judged and whether excavation is continued according to experience, geological activity dynamic simulation can be performed on the geological zones with different risk levels through the risk simulation unit, and the content of the dynamic simulation is visually presented. The risk simulation unit is preset with different lithologic geological activity dynamic models, the judgment result of the signal analysis unit on the geological category of the geological zone is input into the dynamic model, and accordingly geological activity dynamic simulation corresponding to the geological category is output, such as water content and depth corresponding to the water-bearing zone and the range thereof, output water inflow and range dynamic simulation, and dynamic simulation of explosion depth and intensity corresponding to the gas zone and the gas content within the range thereof are output, and can be visually displayed on the display unit, so that an operator can visually know the dynamic simulation. The operator can see the possible consequences of continuous excavation through the dynamic simulation content, and the real-time dynamic simulation can accurately and quickly make judgment by the operator, so that the operation safety is greatly improved, which is different from the problem that the advance forecast is possibly untimely.
On the other hand, the invention also provides a geological radar real-time detection alarm method, which is used for tunnel site construction and comprises the following steps: transmitting electromagnetic waves to a geological zone to be detected and receiving echo signals, wherein the echo signals are reflected signals of the electromagnetic waves reflected by the geological zone; processing and analyzing the echo signals, and judging the risk level of the geological zone; and carrying out corresponding risk prompt according to the risk grade of the geological zone.
Preferably, the processing and analyzing the echo signals to determine the risk level of the geological zone includes: judging the geological category of the geological zone according to the echo signal; if the geological category of the geological zone is a water-bearing zone or a gas zone, judging that the geological zone is in a high risk level; otherwise, judging the geological zone to be in a low risk level.
Preferably, the method further comprises: carrying out geological activity dynamic simulation on the geological zone with high risk level; and visually presenting the dynamically simulated content.
Preferably, the performing corresponding risk prompt according to the risk level of the geological zone includes: and performing acousto-optic prompt with different frequencies according to the risk level of the geological zone.
Preferably, the method further comprises: adjusting the emission frequency of the electromagnetic wave.
According to the geological radar real-time detection alarm method, in the tunnel excavation construction process, the risk level of a geological zone to be detected is judged by transmitting electromagnetic waves to the geological zone and receiving echo signals, and then corresponding risk prompt is carried out according to the risk level, so that the rock mass property of the geological zone in front can be quickly judged in the construction process, for example, whether the rock mass property belongs to a high-risk water-bearing zone easy to cause water inrush or a high-risk gas zone prone to cause explosion, and whether field operators stop operating or continue excavation immediately or not is correspondingly prompted, so that disastrous accidents caused by sudden abnormal conditions in the real-time excavation process are avoided, and the safety of real-time construction is ensured.
On the other hand, the invention also provides a geological radar real-time detection alarm method, which is used for tunnel site construction and comprises the following steps: transmitting electromagnetic waves to a geological zone to be detected and receiving echo signals, wherein the echo signals are reflected signals of the electromagnetic waves reflected by the geological zone; processing and analyzing the echo signals, and judging the risk level of the geological zone; and carrying out corresponding risk prompt according to the risk grade of the geological zone.
Preferably, the processing and analyzing the echo signals to determine the risk level of the geological zone includes: judging the geological category of the geological zone according to the echo signal; if the geological category of the geological zone is a water-bearing zone or a gas zone, judging that the geological zone is in a high risk level; otherwise, judging the geological zone to be in a low risk level.
Preferably, the method further comprises: carrying out geological activity dynamic simulation on the geological zone with high risk level; and visually presenting the dynamically simulated content.
Preferably, the performing corresponding risk prompt according to the risk level of the geological zone includes: and performing acousto-optic prompt with different frequencies according to the risk level of the geological zone.
Preferably, the method further comprises: adjusting the emission frequency of the electromagnetic wave.
According to the geological radar real-time detection alarm method, in the tunnel excavation construction process, the risk level of a geological zone to be detected is judged by transmitting electromagnetic waves to the geological zone and receiving echo signals, and then corresponding risk prompt is carried out according to the risk level, so that the rock mass property of the geological zone in front can be quickly judged in the construction process, for example, whether the rock mass property belongs to a high-risk water-bearing zone easy to cause water inrush or a high-risk gas zone prone to cause explosion, and whether field operators stop operating or continue excavation immediately or not is correspondingly prompted, so that disastrous accidents caused by sudden abnormal conditions in the real-time excavation process are avoided, and the safety of real-time construction is ensured.
In the prior art, the advance geological forecast of the tunnel only knows the geological conditions before the tunnel is excavated, and only can judge the possibility of occurrence of geological disasters such as water burst, gas outburst and rock burst. The geological radar real-time detection alarm system and the method are used for tunnel field construction, echo signals are processed and analyzed, risk levels of geological zones are transmitted and detected in real time, real-time conditions of the geological zones can be detected and alarms in real time under complex construction conditions, operators can judge whether construction can be continued more accurately and rapidly, construction progress is not delayed, and meanwhile safety of the operators in the field construction process is guaranteed.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications all belong to the protection scope of the embodiments of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not describe every possible combination.
In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.
Claims (10)
1. A geological radar real-time detection alarm system is used for tunnel site construction, and is characterized by comprising:
the transmitting unit is used for transmitting electromagnetic waves to a geological zone to be detected at a preset distance through a transmitting antenna;
the receiving unit is used for receiving an echo signal through a receiving antenna, wherein the echo signal is a reflected signal of the electromagnetic wave reflected by the geological zone;
the signal analysis unit is used for processing and analyzing the echo signals and judging the risk level of the geological zone;
and the alarm unit is used for carrying out corresponding risk prompt according to the risk grade of the geological zone.
2. The system according to claim 1, wherein the processing and analyzing the echo signals to determine the risk level of the geological zone comprises:
judging the geological category of the geological zone according to the echo signal;
if the geological category of the geological zone is a water-bearing zone or a gas zone, judging that the geological zone is in a high risk level; otherwise, judging the geological zone to be in a low risk level.
3. The geological radar real-time detection alarm system as claimed in claim 2, wherein said system further comprises:
the risk simulation unit is used for carrying out geological activity dynamic simulation on the geological zone with high risk level;
and the display unit is used for visually presenting the dynamically simulated content.
4. The real-time geological radar detection alarm system as claimed in claim 1, wherein said alarm unit comprises an alarm lamp and a buzzer for audible and visual indication of different frequencies according to the risk level of the geological zone.
5. The geological radar real-time detection alarm system of claim 1,
the signal analysis unit is also used for adjusting the emission frequency of the electromagnetic wave.
6. A geological radar real-time detection alarm method is used for tunnel site construction, and comprises the following steps:
transmitting electromagnetic waves to a geological zone to be detected and receiving echo signals, wherein the echo signals are reflected signals of the electromagnetic waves reflected by the geological zone;
processing and analyzing the echo signals, and judging the risk level of the geological zone;
and carrying out corresponding risk prompt according to the risk grade of the geological zone.
7. The geological radar real-time detection alarm method as claimed in claim 6, wherein the processing and analyzing the echo signals to determine the risk level of the geological zone comprises:
judging the geological category of the geological zone according to the echo signal;
if the geological category of the geological zone is a water-bearing zone or a gas zone, judging that the geological zone is in a high risk level; otherwise, judging the geological zone to be in a low risk level.
8. The geological radar real-time detection alarm method according to claim 6, characterized in that the method further comprises:
carrying out geological activity dynamic simulation on the geological zone with high risk level; and
and visually presenting the dynamically simulated content.
9. The geological radar real-time detection alarm method as claimed in claim 6, wherein the corresponding risk prompt according to the risk level of the geological zone comprises:
and performing acousto-optic prompt with different frequencies according to the risk level of the geological zone.
10. The geological radar real-time detection alarm method according to claim 6,
the method further comprises the following steps: adjusting the emission frequency of the electromagnetic wave.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1715615A (en) * | 2005-08-05 | 2006-01-04 | 郑州煤炭工业(集团)有限责任公司 | Gas preventing and control navigation system for coal mine production mine |
| CN202883018U (en) * | 2012-11-13 | 2013-04-17 | 中铁二十一局集团有限公司 | Remote and on-site three-dimensional digital intelligent pre-warning system for water outburst and mud outburst of underground engineering construction |
| CN103399358A (en) * | 2013-08-01 | 2013-11-20 | 中国建筑第四工程局有限公司 | Forecasting method and system for tunnel geology |
| CN103700054A (en) * | 2013-12-10 | 2014-04-02 | 中国地质大学武汉 | Sudden-onset geological disaster emergency plan digitization system |
| CN104267441A (en) * | 2014-10-10 | 2015-01-07 | 中国矿业大学(北京) | Real-time forecasting method and warning system for water disaster in front of excavation roadway |
| CN105930626A (en) * | 2016-06-17 | 2016-09-07 | 钟世航 | Method of using virtual reality technology to show tunnel geological forecast result |
| CN107503797A (en) * | 2017-08-25 | 2017-12-22 | 合肥明信软件技术有限公司 | Mine Methane tendency early warning system based on 3D emulation platforms |
| CN110264672A (en) * | 2019-06-25 | 2019-09-20 | 广州市城市规划勘测设计研究院 | A kind of early warning system of geological disaster |
-
2020
- 2020-07-06 CN CN202010642923.2A patent/CN111708091A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1715615A (en) * | 2005-08-05 | 2006-01-04 | 郑州煤炭工业(集团)有限责任公司 | Gas preventing and control navigation system for coal mine production mine |
| CN202883018U (en) * | 2012-11-13 | 2013-04-17 | 中铁二十一局集团有限公司 | Remote and on-site three-dimensional digital intelligent pre-warning system for water outburst and mud outburst of underground engineering construction |
| CN103399358A (en) * | 2013-08-01 | 2013-11-20 | 中国建筑第四工程局有限公司 | Forecasting method and system for tunnel geology |
| CN103700054A (en) * | 2013-12-10 | 2014-04-02 | 中国地质大学武汉 | Sudden-onset geological disaster emergency plan digitization system |
| CN104267441A (en) * | 2014-10-10 | 2015-01-07 | 中国矿业大学(北京) | Real-time forecasting method and warning system for water disaster in front of excavation roadway |
| CN105930626A (en) * | 2016-06-17 | 2016-09-07 | 钟世航 | Method of using virtual reality technology to show tunnel geological forecast result |
| CN107503797A (en) * | 2017-08-25 | 2017-12-22 | 合肥明信软件技术有限公司 | Mine Methane tendency early warning system based on 3D emulation platforms |
| CN110264672A (en) * | 2019-06-25 | 2019-09-20 | 广州市城市规划勘测设计研究院 | A kind of early warning system of geological disaster |
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