CN112668904B - Accurate detection method and system for electric power underground construction channel - Google Patents
Accurate detection method and system for electric power underground construction channel Download PDFInfo
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Abstract
The application relates to the field of electric power underground construction channels, in particular to an accurate detection system for an electric power underground construction channel, which comprises the steps of setting risk occurrence influence parameters, wherein the influence parameters comprise the diameter of an arc-shaped top wall of a tunnel, the loading force of surrounding rock of the arc-shaped top wall of the tunnel and the convergence force of the side wall of the tunnel, establishing a BIM three-dimensional model of the tunnel based on the risk occurrence influence parameters, carrying out risk prediction through the BIM three-dimensional model, generating a risk assessment grade, and outputting a risk early warning signal; generating a detection period through the BIM three-dimensional model, and eliminating the possibility of risk occurrence according to the detection period; and analyzing the relationship among the diameter of the arc-shaped top wall of the tunnel, the load force of surrounding rock of the arc-shaped top wall of the tunnel and the convergence force of the side wall of the tunnel through the BIM model so as to push out a conclusion, wherein when the diameter of the arc-shaped top wall is fixed, the load force of the surrounding rock of the arc-shaped top wall of the tunnel and the convergence force of the side wall of the tunnel are in a linear relationship. The application has the effect of saving cost.
Description
Technical Field
The application relates to the field of electric power underground construction channels, in particular to an accurate detection method and an accurate detection system for an electric power underground construction channel.
Background
In order to solve the problems of line planning and power supply safety in the construction and transformation of a power grid, the city is beautified and coordinated with the surrounding environment, and a large amount of cables are adopted in the medium-low voltage distribution network in China for power supply. A cable tunnel refers to a corridor or tunnel structure for accommodating a large number of cables laid on cable supports, the cross section of which is arranged in an arch. The tunnel is internally provided with a plurality of groups of brackets, and various transverse supporting arms are arranged on the brackets for bearing various power or control cables. The cable tunnel not only can enable the tunnel to better protect the cable, but also is convenient for an maintainer to check and maintain the cable.
In the underground tunnel construction process, the underground cable tunnel is required to be excavated firstly, then the underground cable tunnel is supported in the excavated tunnel so as to strengthen the structure of the tunnel, in the underground cable tunnel excavation process, the cable tunnel and the cable laying are usually excavated by adopting a method of combining the vertical cable shaft with the horizontal cable tunnel, and the collapse accident is easy to occur when the horizontal cable tunnel is arranged, so that the sensor is required to be arranged in the tunnel in the whole construction process so as to detect the change of parameters in the tunnel, and the possibility of the tunnel collapse accident is reduced.
In view of the above-described related art, the inventors consider that there are drawbacks in that the cable tunnel is generally long in length, large in width and height, and requires more sensor cable tunnels to be provided, which is costly.
Disclosure of Invention
In order to save construction cost, the application provides an accurate detection method for an electric power underground construction channel.
In a first aspect, the present application provides a method for accurately detecting an underground electric power construction channel, which adopts the following technical scheme:
a precise detection method for an electric underground construction channel comprises the following steps of
Setting risk occurrence influence parameters, wherein the influence parameters comprise the diameter of the arc-shaped top wall of the tunnel, the loading force of surrounding rock of the arc-shaped top wall of the tunnel and the convergence force of the side wall of the tunnel, establishing a BIM three-dimensional model of the tunnel based on the risk occurrence influence parameters, performing risk assessment based on the BIM three-dimensional model, generating a risk assessment grade, outputting a risk early warning signal based on the risk assessment grade;
setting a detection period parameter, carrying out periodic supervision along with a tunnel based on a BIM three-dimensional model, obtaining a supervision result, and judging and excluding the possibility of risk occurrence based on the supervision result;
Based on BIM three-dimensional model to the diameter of tunnel arc roof, tunnel arc roof country rock's loading force and tunnel lateral wall convergence force memory analysis to obtain the relevance between the three, the relevance includes: if the diameter of the arc-shaped top wall is kept unchanged, the load force of surrounding rock of the arc-shaped top wall of the tunnel and the convergence force of the side wall of the tunnel are in a linear relationship.
Through adopting above-mentioned technical scheme, carry out the aassessment of risk to whole work progress through BIM three-dimensional model, in tunnel construction process to reach the effect of guaranteeing constructor and supervision personnel's life and property safety, carry out periodic risk judgement and get rid of the operation to the construction tunnel through the BIM model, reduce the sampling detection frequency to having met safety standard position, in order to reach the purpose that reduces monitoring cost. If the diameter of tunnel arc roof keeps unchanged, then the load power of tunnel arc roof country rock and the convergence power of tunnel lateral wall each other be linear relation, when the convergence power of explanation tunnel lateral wall changes, the load power of tunnel arc roof country rock can change the conclusion, through above-mentioned conclusion, through setting up measuring device at tunnel arc roof, measure the variation and the rate of change of arc roof power, can push out the rate of change of arc roof load power, measure one in the two, can carry out the risk assessment to the tunnel to reduce measuring device's setting kind and setting quantity, in order to reach the purpose of reduce cost. The magnitude between the load force born by the arc-shaped top wall and the convergence force of the tunnel side wall can be calculated through the BIM three-dimensional model, so that the supporting force of the supporting structure required by the arc-shaped top wall and the tunnel side wall in the tunnel can be determined, and the effect of reducing the cost of the supporting structure can be achieved.
Preferably, the tunnel is divided into a plurality of construction sections along the length direction of the tunnel, the construction sections are coded in a remembering mode based on the BIM three-dimensional model, and the coded construction sections are monitored in real time based on the BIM three-dimensional model.
By adopting the technical scheme, the tunnel is monitored in sections, so that the supervision, the management and the control of the tunnel are facilitated, and the region with risk is conveniently located.
Preferably, the detection cycle parameters include a pre-period, a mid-period, and a post-period, and the pre-period supervision frequency > the mid-period supervision frequency > the post-period supervision frequency.
By adopting the technical scheme, the supervision frequency of construction pile is reduced along with the lengthening of time, so that the frequency of collecting and processing data is reduced, and the memory consumed by data operation is reduced.
In a second aspect, the present application further provides a system for accurately detecting an underground electric power construction channel, which adopts the following technical scheme:
The utility model provides an accurate detecting system for electric power underground construction passageway, includes detection module, signal acquisition module, signal transmission module, central processing module and user terminal, detection module is used for taking a sample to the pressure of supporting construction to surrounding rock in the tunnel to with sampling result transmission to signal acquisition module, signal acquisition module handles the sample signal, and transmits the sample signal to central processing module through signal transmission module, central processing module is used for generating risk early warning signal and passes through signal transmission module with risk early warning signal and transmits user terminal.
Through adopting above-mentioned technical scheme, detection module is used for taking a sample to the pressure of surrounding rock and supporting construction in the tunnel, and signal acquisition module is used for handling the sample signal, exports central processing module again, and central processing module calculates the sample signal, generates risk early warning signal, and risk early warning signal passes through transmission module transmission to user terminal.
Preferably, the signal acquisition module comprises an amplifying unit, a filtering unit, a storage unit and an encrypting unit, wherein the amplifying unit is used for improving the signal strength of a sampling signal, the filtering unit is used for improving the stability of the sampling signal, the storage unit is used for storing the sampling signal, and the encrypting unit is used for encrypting the transmitted sampling signal.
Through adopting above-mentioned technical scheme, because the signal is output to central processing unit from the tunnel in, most needs wear out to the shaft from horizontal tunnel, wear out from the shaft, amplifying unit is used for improving the signal strength of sampling signal in transmission process, with the attenuation that reduces the signal because passing through the object and cause, filtering unit is used for separating the signal of taking a sample with the noise, with interference killing feature and the signal to noise ratio of improving the signal, make the signal that exports to central processing module comparatively stable, storage unit is used for storing the data of sampling signal, so that central processing module's the retrieval, make things convenient for the looking over of later data simultaneously, encrypting unit is used for reducing the condition emergence that appears data leakage, in order to improve interference killing feature when signal transmission.
Preferably, the user terminal comprises a field terminal and a remote terminal, wherein the field terminal is communicated with the central processing module through the signal transmission module so as to receive the early warning signal sent by the central processing module, and the remote terminal is communicated with the central processing module through the signal transmission module so as to remotely receive the data transmitted by the central processing module.
Through adopting above-mentioned technical scheme, on-the-spot terminal can implement at the job site and look over data, and receive risk early warning signal, make constructor and prison personnel can in time discover problem and the position that support structure appears in the construction to in time add the protection to support the structure, remote terminal can be outside the job site receive the tunnel condition in the job site.
Preferably, refuges are arranged in the tunnels, a plurality of refuges are arranged and uniformly distributed in each section of tunnel, the number of the refuges in each section of tunnel is at least one, and a positioning device is arranged in each refuge.
Through adopting above-mentioned technical scheme, the interval is provided with a plurality of in the tunnel of refuge place, reduces constructor's the journey of fleing when taking place the incident, the life and the property safety of protection user to a greater extent.
Preferably, the shelter is arranged as a pit body arranged on the water level in the tunnel, a top cover is arranged on the pit mouth of the pit body, the top cover is arranged at the pit mouth, an escape opening is arranged on the top cover, and a sealing door is arranged on the escape opening.
Through adopting above-mentioned technical scheme, constructor in the tunnel is when fleing, through opening airtight door, in entering the matrix through the escape opening, after this section tunnel safety passes through the detection cycle, gets rid of the top cap, and the pit body fills up with soil to reach the effect of interim refuge.
Drawings
FIG. 1 is a rectangular coordinate system establishment chart for analyzing influence factors in an accurate detection method of an electric power underground construction channel.
Fig. 2 is a block diagram of a connection for an accurate detection system for an electrical underground construction passageway of the present application.
Fig. 3 is a connection frame of the amplifying unit, the filtering unit, the storing unit, and the encrypting unit.
Fig. 4 is a schematic cross-sectional view showing a tunnel cross-section.
Fig. 5 is a schematic view of the overall structure of the support structure.
FIG. 6 is a schematic cross-sectional view of the shelter.
Reference numerals: 1. a detection module; 2. a signal acquisition module; 20. an amplifying unit; 21. a filtering unit; 22. a storage unit; 23. an encryption unit; 3. a signal transmission module; 4. a central processing module; 5. a user terminal; 50. a field terminal; 500. a field PC end; 501. a field mobile terminal; 51. a remote terminal; 510. a remote PC end; 511. a remote mobile terminal; 6. supporting an arch; 60. a support rib; 600. supporting arch ribs; 601. supporting the longitudinal ribs; 61. a connecting rib; 7. a pit body; 8. a top cover; 80. an escape opening; 81. and (5) closing the door.
Detailed Description
The application is described in further detail below with reference to fig. 1-6.
The embodiment of the application discloses a precise detection method for an electric power underground construction channel.
Referring to fig. 1, the method for precisely detecting an electric power underground construction passageway includes.
And building a BIM three-dimensional model of the tunnel.
The tunnel structure is an elongated structure with an arched section, and a supporting structure is arranged in the tunnel and used for supporting the arc-shaped top wall of the tunnel and the inner side wall of the tunnel. Simultaneously, the tunnel is excavated, and the side wall of the excavated tunnel is provided with a supporting structure which is used for supporting the inner wall of the tunnel. And acquiring structural parameters of the excavated tunnel by utilizing equipment in the process of excavating each section of tunnel, and monitoring the change of the surrounding rock and the supporting structure of the constructed section.
Setting influence parameters of risk occurrence in a BIM three-dimensional model, wherein the influence parameters comprise factors such as surrounding rock loading force of a tunnel arc top wall, convergence force of a tunnel side wall, diameter of the tunnel arc top wall and the like, taking a time period as an independent variable, evaluating the risk through the BIM three-dimensional model by measuring the change amount of influence factor data in the period, generating a risk evaluation grade, and sending a risk early warning signal according to the risk evaluation grade.
Specifically, the risk assessment level comprises a first-level risk, a second-level risk and a third-level risk, and under the third-level risk, the structure of the tunnel is in a stable state; under the secondary risk, at the moment, a position with an unstable structure exists in the tunnel, so that the possibility of collapse is further described, and the support structure needs to be secondarily reinforced; the first-level risk is an evacuation signal, and the possibility of collapse of the tunnel is high at the moment, so that constructors in the tunnel should evacuate immediately.
The method comprises the steps of dividing a tunnel into a plurality of construction sections along the length direction of the tunnel in a BIM three-dimensional model, coding each construction section by utilizing the BIM three-dimensional model, wherein in the embodiment, the codes are displacement identification codes of each construction section, and further, the corresponding construction section can be rapidly determined through the displacement identification codes.
Setting a detection period parameter, performing periodic supervision on the tunnel according to segmentation of the tunnel based on the BIM three-dimensional model to obtain a supervision structure, and judging and eliminating the possibility of risk occurrence based on the supervision structure.
The detection period parameters are set to be early, medium and later, the period is early within 7 days after the tunnel excavation is completed, the period is medium from 7 days to 14 days, and the period is later from 14 days to 21 days.
In the early detection, the data sampling frequency is three times per day, namely 0 point, 8 point and 16 point respectively, data are collected and recorded once every half hour, and the average number of the data is taken as the detection results of the 0 point, the 8 point and the 16 point and is input into the BIM three-dimensional model;
in mid-term detection, the data sampling frequency is once daily, 12 points of each day are collected and recorded once every other hour, and the average number of the data is used as the detection result of the day and is input into the BIM three-dimensional model.
In the later detection, the data sampling frequency is once every two days, which is 0 point of the next day, data are collected and recorded every two hours, and the average number of the data is used as the detection result of the day and is input into the BIM three-dimensional model.
Based on the transmitted data, taking time as an abscissa and sampling data as an ordinate, drawing a graph of the data change rate in the BIM three-dimensional model, when the data change condition of the construction section in a detection period is stable, the construction section is regarded as safe after the detection period, and marking the coded construction section as unsafe based on the BIM three-dimensional model. When detecting that the data change is abnormal, a supporting structure is additionally arranged on an abnormal construction section by a user, and the monitoring is carried out again according to the detection period after the supporting structure is additionally arranged until the data is recovered to be normal.
Analysis of influencing factors
The supporting structure mainly supports the side wall of the tunnel and the arc top wall of the tunnel, the side wall of the tunnel received by the supporting structure is pressed towards the inside of the tunnel, and the supporting structure is further subjected to the convergence force of the side wall of the tunnel to the horizontal direction.
And the point of the supporting structure, which is abutted with the arc-shaped arm of the tunnel, is A point, the connection point of the arc-shaped arm and the side wall is B point and C point, and the heights of the B point and the C point are equal. As shown in fig. 1, a rectangular coordinate system is established by taking point B as the origin of coordinates, the loading force received by point a is F a, the force received by point B from the tunnel is F b, the transverse component force received by point B is F bx, the longitudinal component force is F by, the force received by point C from the tunnel is F c, the transverse component force received by point C is F cx, the longitudinal component force is F cy, the radius of the tunnel is r,
Fby+Fcy＝Fa
Because of
M C＝0,MC is the moment of the point C;
So that
F a|X-r|+Fcxr+Fbyr＝Fbxr+Fcy r, X is the abscissa of the actual F a;
So that
The resultant force of F bx and F by is wired on the AC,
So that
The uniformly distributed load of the arc-shaped top wall of the tunnel is q
Conclusion of the conclusion
From the above analysis, it can be deduced that conclusion one: if the radius of the tunnel is kept to be constant, the lateral force F cx born by the supporting structure and the uniform load q of the arc-shaped top wall are in a positive correlation relationship, so that the larger the convergence force of the lateral surfaces of the two sides is, the larger the uniform load at the arc-shaped surface of the tunnel is.
When laying detection device, only need set up detection device at lateral supporting construction, can detect the pressure of the tunnel arc roof that department top supporting construction received to and the convergence force of the tunnel lateral wall that supporting construction received, saved and laid a plurality of detection device and spent cost on tunnel arc roof.
It can also be deduced that conclusion two
If the diameter of the arc-shaped wall of the tunnel is larger than 4 meters, the lateral force F born by the supporting structure is larger than the uniform load q of the arc-shaped top wall, and when the supporting structure is arranged, the strength of the supporting structure on the side wall is larger than that of the supporting structure on the arc-shaped wall;
If the diameter of the arc-shaped wall of the tunnel is smaller than 4 meters, the lateral force F born by the supporting structure is smaller than the uniform load q of the arc-shaped top wall, so that the strength of the supporting structure of the arc-shaped wall is larger than that of the supporting structure of the opposite side wall;
if the lateral force F applied to the supporting structure is equal to the uniform load q of the arc-shaped top wall when the diameter of the arc-shaped wall of the tunnel is equal to 4 meters, the strength of the supporting structure for the side wall is equal to the strength of the supporting structure for the arc-shaped wall.
The numerical value of the radius r of the arc wall of the tunnel input into the BIM three-dimensional model by a user is used for generating the ratio that the lateral force F born by the supporting structure is larger than the uniformly distributed load q of the arc top wall, so that the material consumption of the supporting structure is determined.
The embodiment of the application also discloses a system for accurately detecting the electric power underground construction channel.
Referring to fig. 2, the accurate detection system for the electric power underground construction channel comprises a detection module 1, a signal acquisition module 2, a signal transmission module 3, a central processing module 4 and a user terminal 5, wherein the signal acquisition module 2 is communicated with the detection module 1 and the signal transmission module 3, the signal transmission module 3 is communicated with the signal acquisition module 2 and the central processing module 4, and the signal transmission module 3 is also communicated with the central processing module 4 and the user terminal 5. The detection module 1 is used for detecting environmental parameters in a tunnel, the signal acquisition module 2 is used for collecting the environmental parameters and processing signals, the central processing module 4 is used for calculating the collected environmental parameters and generating risk early warning signals, and the user terminal 5 obtains the risk early warning signals through the signal transmission module 3.
Referring to fig. 3, the signal acquisition module 2 includes an amplifying unit 20, a filtering unit 21, a storage unit 22, and an encrypting unit 23, where the amplifying unit 20 communicates with the detecting module 1, the filtering unit 21 communicates with the amplifying unit 20 and the storage unit 22, the encrypting unit 23 communicates with the storage unit 22, the amplifying unit 20 is used to increase the signal strength of the sampled signal in the transmission process, so as to reduce the attenuation of the signal caused by passing through an object, and the filtering unit 21 is used to separate the sampled signal from noise, and improve the anti-interference performance and the signal-to-noise ratio of the signal. The storage unit 22 is used for storing the sampling signal so as to facilitate the retrieval of the sampling signal, and the encryption unit 23 is used for improving the security of data transmission, improving the anti-interference capability during signal transmission and reducing the occurrence of data leakage.
Referring to fig. 4 and 5, the supporting structure includes a supporting arch frame 6, the supporting arch frame 6 includes a plurality of supporting ribs 60 and connecting ribs 61 transversely disposed, the supporting ribs 60 are arranged in an arch shape, and are uniformly spaced along the length direction of the tunnel, and the connecting ribs 61 are used for connecting adjacent supporting ribs 60. The supporting ribs 60 comprise supporting arch ribs 600 and supporting longitudinal ribs 601, the supporting longitudinal ribs 601 are arranged in pairs, two ends of the supporting arch ribs 600 are welded with the tops of the supporting longitudinal ribs 601, and connecting ribs 61 are arranged between the supporting rib supplying and supporting longitudinal ribs 601 at parallel intervals. The support arch ribs 600 are additionally arranged between the support ribs 60, so that support can be added to the top of the support structure, the support longitudinal ribs 601 are additionally arranged between the support ribs 60, and support can be added to the side walls of the support structure.
The detection module 1 comprises a plurality of pressure sensors and a level gauge, wherein the pressure sensors are arranged on the supporting longitudinal ribs 601, the pressure sensors are arranged between the supporting longitudinal ribs 601 and the side wall of the tunnel, and the pressure sensors are used for detecting lateral supporting force of the supporting structure. The leveling instrument is arranged on the ground and is used for detecting the subsidence condition of the earth surface so as to detect the subsidence condition of the earth surface above the tunnel and avoid engineering accidents caused by overlarge subsidence of the earth surface.
The signal transmission module 3 includes a WIFI unit and a GPRS unit, where the WIFI unit is configured to provide short-distance data connection for the on-site user terminal 5, and the GPRS unit provides long-distance mobile data communication for the user terminal 5. The WIFI unit is arranged to be convenient for the reception of staff data in the tunnel.
Referring to fig. 2, the user terminal 5 includes a field terminal 50 and a remote terminal 51, a constructor on site can enable a constructor and a manager to receive collected environmental parameters in real time through the field terminal 50, the remote terminal 51 is used for remotely monitoring a construction site, the field terminal 50 includes a field PC terminal 500 and a field mobile terminal 501, the field PC terminal 500 enables the constructor and the manager in a tunnel to view data in real time, and the field mobile terminal 501 enables the constructor and the manager in the tunnel to view data and receive risk early warning signals through a mobile phone. When the risk early warning signal received by the field user terminal 5 is a secondary risk, the field user timely carries out the operation of reinforcing and supporting the corresponding coded tunnel, and when the early warning signal received by the field user terminal 5 is a primary risk, the field staff immediately evacuates the construction site of the dangerous construction section so as to protect the life and property safety of the field staff. The remote terminal 51 includes a remote PC terminal 510 and a remote mobile terminal 511, and the remote PC terminal 510 and the remote mobile terminal 511 are used to enable an overground operator to grasp environmental parameters of an underground tunnel in real time.
Referring to fig. 6, a shelter is disposed in each section of tunnel, the shelter is disposed at a middle position of each section of tunnel, the temporary shelter is disposed on a horizontal plane in the tunnel, the shelter is disposed as a pit body 7, a top cover 8 is disposed on the pit body 7, the top cover 8 is erected at a pit mouth of the pit body 7, the top cover 8 is made of steel plates, an escape opening 80 is disposed on the top cover 8, the escape opening 80 is provided with a sealing door 81, the sealing door 81 is hinged with the top cover 8, the sealing door 81 can be covered at the escape opening 80, and an upper surface of the sealing door 81 is flush with an upper surface of the top cover 8.
The pit body 7 is internally provided with a GPRS positioning device for positioning the position of the refuge place in the corresponding coding tunnel, when the accident occurs, the corresponding accident tunnel coding can be positioned through the BIM three-dimensional model, so that rescue workers can conveniently inquire the position of the refuge place in the accident tunnel, and the pit body 7 is internally provided with various life-saving materials, wherein the life-saving materials comprise water, food, oxygen cylinders, heating quilt and the like, so as to supply air, temperature, food and the like for survival of the users.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (8)
1. The accurate detection method for the electric power underground construction channel is characterized by comprising the following steps of: comprising
Setting risk occurrence influence parameters, wherein the influence parameters comprise the diameter of the arc-shaped top wall of the tunnel, the loading force of surrounding rock of the arc-shaped top wall of the tunnel and the convergence force of the side wall of the tunnel, establishing a BIM three-dimensional model of the tunnel based on the risk occurrence influence parameters, performing risk assessment based on the BIM three-dimensional model, generating a risk assessment grade, outputting a risk early warning signal based on the risk assessment grade;
Setting a detection period parameter, performing periodic supervision along with the tunnel based on the BIM three-dimensional model to obtain a supervision result, and judging and eliminating the possibility of risk occurrence based on the supervision result;
the diameter of the arc-shaped top wall of the tunnel, the loading force of surrounding rock of the arc-shaped top wall of the tunnel and the convergence force of the side wall of the tunnel are analyzed based on the BIM three-dimensional model so as to obtain the relevance among the three, wherein the relevance comprises: if the diameter of the arc-shaped top wall is kept unchanged, the load force of surrounding rock of the arc-shaped top wall of the tunnel and the convergence force of the side wall of the tunnel are in a linear relationship.
2. The precise detection method for the electric power underground construction passage according to claim 1, characterized in that: the method comprises the steps of dividing a tunnel into a plurality of construction sections along the length direction of the tunnel, coding the construction sections based on a BIM three-dimensional model, and monitoring the coding construction sections in real time based on the BIM three-dimensional model.
3. The precise detection method for the electric power underground construction passage according to claim 2, characterized in that: the detection cycle parameters comprise a front stage, a middle stage and a rear stage, and the front stage supervision frequency > the middle stage supervision frequency > the rear stage supervision frequency.
4. An accurate detecting system for electric power underground construction passageway, its characterized in that: the accurate detection method for the electric power underground construction channel according to any one of the claims 1-3 is adopted, and comprises a detection module (1), a signal acquisition module (2), a signal transmission module (3), a central processing module (4) and a user terminal (5), wherein the detection module (1) is used for sampling the pressure of surrounding rocks in a tunnel to a supporting structure and transmitting a sampling signal to the signal acquisition module (2), the signal acquisition module (2) processes the sampling signal and transmits the sampling signal to the central processing module (4) through the signal transmission module (3), and the central processing module (4) is used for generating a risk early warning signal and transmitting the risk early warning signal to the user terminal (5) through the signal transmission module (3).
5. The accurate detection system for an electrical underground construction passageway of claim 4, wherein: the signal acquisition module (2) comprises an amplifying unit (20), a filtering unit (21), a storage unit (22) and an encryption unit (23), wherein the amplifying unit (20) is used for improving the signal strength of a sampling signal, the filtering unit (21) is used for improving the stability of the sampling signal, the storage unit (22) is used for storing the sampling signal, and the encryption unit (23) is used for encrypting the transmitted sampling signal.
6. The accurate detection system for an electrical underground construction passageway of claim 5, wherein: the user terminal (5) comprises a field terminal (50) and a remote terminal (51), the field terminal (50) is communicated with the central processing module (4) through the signal transmission module (3) so as to receive an early warning signal sent by the central processing module (4) at a construction site, and the remote terminal (51) is communicated with the central processing module (4) through the signal transmission module (3) so as to remotely receive data transmitted by the central processing module (4).
7. The accurate detection system for an electrical underground construction passageway of claim 4, wherein: the refuge system comprises a plurality of refuges and is characterized in that the refuges are arranged in the tunnel, the refuges are uniformly distributed in each section of tunnel, the number of the refuges in each section of tunnel is at least one, and a positioning device is arranged in the refuges.
8. The accurate detection system for an electrical underground construction passageway of claim 7, wherein: the refuge station is arranged to be provided with a pit body (7) on a horizontal plane in a tunnel, a top cover (8) is arranged on a pit mouth of the pit body (7), the top cover (8) is covered on the pit mouth, an escape opening (80) is arranged on the top cover (8), and a sealing door (81) is arranged on the escape opening (80).
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| CN109242724A (en) * | 2018-07-21 | 2019-01-18 | 中铁十八局集团有限公司 | A kind of New Austrian Tunneling Method constructing tunnel management method based on BIM |
| CN110147635A (en) * | 2019-05-31 | 2019-08-20 | 大连海事大学 | A kind of advanced dynamic prediction method of tunnel surrounding rank based on BIM |
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| CN101458069B (en) * | 2008-12-30 | 2011-02-23 | 中铁二十四局集团有限公司 | Tunnel wall rock deformation monitoring method and monitoring system thereof |
| CN106644206B (en) * | 2016-11-03 | 2019-07-26 | 西南石油大学 | A kind of pressure from surrounding rock calculation method for shallow tunnel |
| US10671767B2 (en) * | 2017-02-22 | 2020-06-02 | Middle Chart, LLC | Smart construction with automated detection of adverse structure conditions and remediation |
| FR3074214B1 (en) * | 2017-11-24 | 2021-12-17 | Dodin Campenon Bernard | CONSTRUCTION PROCESS OF A DIGITAL MODEL RELATING TO A CONSTRUCTION SITE OF AN UNDERGROUND WORK |
| CN109543283B (en) * | 2018-11-20 | 2023-08-25 | 成都天佑智隧科技有限公司 | Internal force and confining pressure calculation method based on structural convergence deformation |
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| CN112985304B (en) * | 2019-07-26 | 2022-11-18 | 北京住总集团有限责任公司 | Tunnel construction auxiliary monitoring system |
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| CN109242724A (en) * | 2018-07-21 | 2019-01-18 | 中铁十八局集团有限公司 | A kind of New Austrian Tunneling Method constructing tunnel management method based on BIM |
| CN110147635A (en) * | 2019-05-31 | 2019-08-20 | 大连海事大学 | A kind of advanced dynamic prediction method of tunnel surrounding rank based on BIM |
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