CN117703415A - Method, system, terminal and storage medium for controlling front bulge in shield tunnel construction - Google Patents
Method, system, terminal and storage medium for controlling front bulge in shield tunnel construction Download PDFInfo
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- CN117703415A CN117703415A CN202311544999.1A CN202311544999A CN117703415A CN 117703415 A CN117703415 A CN 117703415A CN 202311544999 A CN202311544999 A CN 202311544999A CN 117703415 A CN117703415 A CN 117703415A
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- 238000010276 construction Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000005641 tunneling Effects 0.000 claims abstract description 109
- 239000002893 slag Substances 0.000 claims abstract description 85
- 230000007246 mechanism Effects 0.000 claims abstract description 77
- 230000000630 rising effect Effects 0.000 claims abstract description 15
- 230000001276 controlling effect Effects 0.000 claims description 17
- 238000004458 analytical method Methods 0.000 claims description 16
- 238000012502 risk assessment Methods 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000012163 sequencing technique Methods 0.000 claims description 3
- 238000004590 computer program Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000003416 augmentation Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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Abstract
The invention discloses a method, a system, a terminal and a storage medium for controlling a front bulge in shield tunnel construction, wherein the method comprises the following steps: acquiring earth surface deformation data based on a preset image acquisition device during tunneling of a shield mechanism, wherein the earth surface deformation data are used for reflecting the earth surface deformation position and the deformation corresponding to the earth surface deformation position; acquiring shield slag discharge amount, and comprehensively analyzing the shield slag discharge amount and the ground surface deformation data to determine ground surface subsidence risk, wherein the ground surface subsidence risk is used for reflecting the possibility risk of rising or sinking of the ground surface; and adjusting the tunneling parameters of the shield mechanism according to the earth surface subsidence risk. The invention can accurately analyze the earth surface subsidence risk in front of the shield mechanism, and timely adjust the tunneling parameters according to the earth surface subsidence risk, thereby timely processing the risk and ensuring the construction safety.
Description
Technical Field
The invention relates to the technical field of tunneling, in particular to a method, a system, a terminal and a storage medium for controlling a front bulge in shield tunnel construction.
Background
Tunneling is industrial operation for realizing long and large tunnel construction. However, in the excavation of weak surrounding rock areas, collapse disasters are the most common disaster type with the highest occurrence frequency due to the non-uniformity of lithology. In the prior art, a manual detection mode is basically adopted to detect the surrounding rock of the tunnel, and a worker judges whether the surface bulge or collapse risk exists based on experience. However, the manual detection method wastes manpower and the detection result is inaccurate.
Accordingly, there is a need for improvement and advancement in the art.
Disclosure of Invention
The invention aims to solve the technical problems that the prior art adopts a mode of manually detecting the risk of earth surface elevation or subsidence, wastes manpower and has inaccurate detection results.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
in a first aspect, the present invention provides a method for controlling a front bulge in shield tunnel construction, where the method includes:
acquiring earth surface deformation data based on a preset image acquisition device during tunneling of a shield mechanism, wherein the earth surface deformation data are used for reflecting the earth surface deformation position and the deformation corresponding to the earth surface deformation position;
acquiring shield slag discharge amount, and comprehensively analyzing the shield slag discharge amount and the ground surface deformation data to determine ground surface subsidence risk, wherein the ground surface subsidence risk is used for reflecting the possibility risk of rising or sinking of the ground surface;
and adjusting the tunneling parameters of the shield mechanism according to the earth surface subsidence risk.
In one implementation manner, the obtaining the surface deformation data based on the preset image acquisition device during the tunneling of the shield mechanism includes:
acquiring a tunneling direction of the shield mechanism and a tunneling route corresponding to the tunneling direction;
setting the image acquisition device according to the tunneling route, and acquiring a surface image in a preset time period based on the image acquisition device;
and determining the surface deformation position and the deformation corresponding to the surface deformation position based on the surface image, and taking the surface deformation position and the deformation as the surface deformation data.
In one implementation manner, the determining, based on the surface image, the surface deformation location and the deformation amount corresponding to the surface deformation location includes:
sequencing all the surface images according to a time sequence, and analyzing each surface image to obtain image characteristics corresponding to each surface image;
determining surface flatness data corresponding to each surface image based on image features corresponding to each surface image;
and determining the surface deformation position and the deformation corresponding to the surface deformation position according to the surface flatness data corresponding to each surface image.
In one implementation manner, the determining the surface deformation position and the deformation corresponding to the surface deformation position according to the surface flatness data corresponding to each surface image includes:
according to the time sequence, sequentially comparing the surface flatness data corresponding to the two adjacent surface images, and determining difference data between the two adjacent surface flatness data;
comparing each difference data with a preset deformation threshold value, and determining target difference data larger than the deformation threshold value from all the difference data;
acquiring a surface image corresponding to the target difference data, and determining the surface deformation position based on the surface image corresponding to the target difference data;
and determining the deformation corresponding to the surface deformation position based on the target difference data.
In one implementation manner, the determining the earth surface subsidence risk based on the comprehensive analysis of the shield slag discharge amount and the earth surface deformation data includes:
determining a ground surface deformation direction based on the ground surface deformation data, wherein the ground surface deformation direction is used for reflecting whether the ground surface is upward bulge deformation or downward recess deformation;
comparing the shield slag discharge amount with a preset standard slag discharge amount to obtain a comparison result, wherein the standard slag discharge amount is estimated according to model parameters of the shield mechanism;
and determining the earth surface subsidence risk according to the comparison result and the earth surface deformation direction.
In one implementation, the determining the surface subsidence risk according to the comparison result and the surface deformation direction includes:
if the comparison result shows that the shield slag discharge amount is larger than the standard slag discharge amount and the surface deformation direction is downward concave deformation, determining that the earth surface subsidence risk is a subsidence risk;
and if the comparison result shows that the shield slag discharge amount is smaller than or equal to the standard slag discharge amount and the surface deformation direction is upward bulge deformation, determining that the earth surface bulge risk is a bulge risk.
In one implementation manner, the adjusting the tunneling parameters of the shield mechanism according to the earth surface subsidence risk includes:
if the earth surface subsidence risk is a subsidence risk, reducing the tunneling speed and the tunneling depth in the tunneling parameters of the shield mechanism, and adjusting the tunneling direction in the tunneling parameters from the declination to the horizontal;
and if the earth surface subsidence risk is a subsidence risk, regulating the tunneling speed and the tunneling depth in the tunneling parameters of the shield mechanism to be large, and regulating the tunneling direction in the tunneling parameters from the upper direction to the horizontal direction.
In a second aspect, an embodiment of the present invention further provides a device for controlling a front bulge in shield tunnel construction, where the device includes:
the deformation analysis module is used for acquiring earth surface deformation data based on a preset image acquisition device when the shield mechanism is tunneled, wherein the earth surface deformation data are used for reflecting the earth surface deformation position and the deformation corresponding to the earth surface deformation position;
the risk analysis module is used for acquiring the shield slag amount, comprehensively analyzing the shield slag amount and the ground surface deformation data based on the shield slag amount, and determining the ground surface subsidence risk, wherein the ground surface subsidence risk is used for reflecting the possibility risk of rising or sinking of the ground surface;
and the parameter adjustment module is used for adjusting the tunneling parameters of the shield mechanism according to the earth surface subsidence risk.
In a third aspect, an embodiment of the present invention further provides a terminal, where the terminal includes a memory, a processor, and a shield tunnel construction front elevation control program stored in the memory and capable of running on the processor, where the processor implements the steps of the shield tunnel construction front elevation control method of any one of the above schemes when executing the shield tunnel construction front elevation control program.
In a fourth aspect, an embodiment of the present invention further provides a computer readable storage medium, where the computer readable storage medium stores a shield tunnel construction front augmentation-trap control program, where when the shield tunnel construction front augmentation-trap control program is executed by a processor, the steps of the shield tunnel construction front augmentation-trap control method according to any one of the above schemes are implemented.
The beneficial effects are that: compared with the prior art, the invention provides a method for controlling the frontal augmentation of shield tunnel construction, which comprises the steps of firstly acquiring surface deformation data based on a preset image acquisition device when a shield mechanism is tunneled, wherein the surface deformation data are used for reflecting the surface deformation position and the deformation corresponding to the surface deformation position. And then, obtaining the shield slag amount, and comprehensively analyzing the shield slag amount and the ground surface deformation data to determine the ground surface subsidence risk, wherein the ground surface subsidence risk is used for reflecting the possibility risk of rising or sinking of the ground surface. Finally, according to the earth surface subsidence risk, the tunneling parameters of the shield mechanism are adjusted. The invention can accurately analyze the earth surface subsidence risk in front of the shield mechanism, and timely adjust the tunneling parameters according to the earth surface subsidence risk, thereby timely processing the risk and ensuring the construction safety.
Drawings
Fig. 1 is a flowchart of a specific implementation of a method for controlling a front bulge in shield tunnel construction according to an embodiment of the present invention.
Fig. 2 is a functional schematic diagram of a shield tunnel construction front bulge-and-recess control system provided by an embodiment of the invention.
Fig. 3 is a schematic block diagram of a terminal according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and more specific, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The embodiment provides a shield tunnel construction front bulge-and-recess control method, and in specific application, the method is characterized in that when a shield mechanism is tunneled, surface deformation data are acquired based on a preset image acquisition device, wherein the surface deformation data are used for reflecting the surface deformation position and deformation quantity corresponding to the surface deformation position. And then, obtaining the shield slag amount, and comprehensively analyzing the shield slag amount and the ground surface deformation data to determine the ground surface subsidence risk, wherein the ground surface subsidence risk is used for reflecting the possibility risk of rising or sinking of the ground surface. Finally, according to the earth surface subsidence risk, the tunneling parameters of the shield mechanism are adjusted. According to the method and the device for analyzing the earth surface subsidence risk, earth surface subsidence risk in front of the shield mechanism can be accurately analyzed, and tunneling parameters can be timely adjusted according to the earth surface subsidence risk, so that the risk can be timely processed, and construction safety is guaranteed.
The shield tunnel construction front bulge control method of the embodiment can be applied to terminals, wherein the terminals comprise intelligent product terminals such as computers, intelligent televisions and mobile phones. When the method is specifically applied, the method for controlling the frontal subsidence of the shield tunnel construction can also be applied to a control computer of a shield mechanism, so that the assessment and control of the earth surface subsidence risk are realized based on the shield mechanism. Specifically, as shown in fig. 1, the method for controlling the front bulge of the shield tunnel construction of the present embodiment includes the following steps:
and step 100, acquiring surface deformation data based on a preset image acquisition device during tunneling of the shield mechanism, wherein the surface deformation data are used for reflecting the surface deformation position and the deformation corresponding to the surface deformation position.
The shield mechanism is used for tunnel construction, and in order to analyze the earth surface subsidence risk in the embodiment, the embodiment obtains earth surface deformation data based on a preset image acquisition device when the shield mechanism is tunneled, wherein the earth surface deformation data are used for reflecting the earth surface deformation position and the deformation corresponding to the earth surface deformation position. That is, in this embodiment, the surface deformation analysis is performed by acquiring an image, so that the surface deformation position and the deformation amount corresponding to the surface deformation position are determined.
In one implementation manner, when obtaining the surface deformation data in this embodiment, the method includes the following steps:
step S101, acquiring a tunneling direction of the shield mechanism and a tunneling route corresponding to the tunneling direction;
step S102, setting the image acquisition device according to the tunneling route, and acquiring a surface image in a preset time period based on the image acquisition device;
and step 103, determining the surface deformation position and the deformation corresponding to the surface deformation position based on the surface image, and taking the surface deformation position and the deformation as the surface deformation data.
Specifically, the terminal firstly acquires the tunneling direction of the shield mechanism and the tunneling route corresponding to the tunneling direction. The tunneling direction can be directly read from the working parameters of the shield mechanism, the shield direction can be recorded in the working parameters, and the tunneling direction is reflected by the shield direction. The terminal may then further determine a tunneling route for the shield mechanism based on the route already constructed in combination with the tunneling direction, the tunneling route reflecting the construction route for the shield mechanism. Next, the image acquisition device may be configured according to the tunneling route, and the image acquisition device is configured to acquire an image of the earth surface on the tunneling route. In order to accurately acquire the surface images so as to accurately analyze the surface deformation data, the embodiment can set image acquisition devices at intervals of preset distances, each image acquisition device acquires the surface images in a fixed range, and therefore a plurality of surface images are acquired, and the surface images form an image of a complete tunnel surrounding rock. In addition, the image device of the embodiment starts working as long as the shield mechanism starts working, and performs the acquisition of the earth surface image at each moment to obtain the earth surface image in a preset time period, so as to accurately analyze the earth surface deformation data according to the earth surface image in the subsequent steps. Finally, the terminal of the embodiment analyzes the surface images, so as to determine a surface deformation position and a deformation corresponding to the surface deformation position, and takes the surface deformation position and the deformation as the surface deformation data.
In one implementation manner, since the earth surface images in the preset time period are collected in the embodiment, the earth surface images can be sequenced according to the time sequence for the earth surface images collected by the image collecting device at the same position, and then each earth surface image is analyzed respectively, so that the image characteristics corresponding to each earth surface image are obtained, and the image characteristics can reflect the shape, the size and other data at the earth surface position collected by the image collecting device. And then, the terminal analyzes the size data and the shape data according to the image characteristics corresponding to each surface image, and determines the surface flatness data corresponding to each surface image. The surface flatness data in this embodiment may reflect whether the surface position acquired by the ground image acquisition device is flat, that is, whether a bump or a depression occurs. After determining the surface flatness data corresponding to each surface image, the embodiment can analyze the change of the surface shape and the size based on the surface flatness data, and further can determine the surface deformation position and the deformation corresponding to the surface deformation position.
Specifically, in this embodiment, according to the time sequence, the surface flatness data corresponding to two adjacent surface images may be compared in turn, and difference data between the two adjacent surface flatness data may be determined, where the difference data may reflect a change in surface flatness data between adjacent moments. Then, the terminal compares each difference data with a preset deformation threshold value, and determines target difference data larger than the deformation threshold value from all the difference data, so that the situation that the change of the ground surface flatness data is large at the moment can be determined, and the ground surface at the position is possibly raised or depressed. Therefore, the terminal acquires the surface image corresponding to the target difference data, and determines a specific surface deformation position based on the surface image corresponding to the target difference data. And then determining the deformation corresponding to the surface deformation position based on the target difference data. Similarly, for the images acquired by other image acquisition devices, the present embodiment may analyze other surface deformation positions and corresponding deformation amounts based on the above manner.
And step 200, obtaining shield slag amount, and comprehensively analyzing the shield slag amount and the ground surface deformation data to determine the ground surface subsidence risk, wherein the ground surface subsidence risk is used for reflecting the possibility risk of rising or sinking of the ground surface.
After the terminal analyzes the earth surface deformation data, the terminal of the embodiment can acquire the shield slag discharge amount, wherein the shield slag discharge amount is the slag discharge amount of the shield mechanism when the shield mechanism digs, and the slag discharge amount discharged by the shield mechanism can be weighed by using a self-contained weighing device, so that the slag discharge amount can be reflected by the weight of the discharged slag. In addition, in another implementation, the amount of slag discharged by the shield mechanism of the present embodiment may be measured using a self-contained volume measurement device, and thus the amount of slag may be represented by the volume of the discharged slag. Then, the embodiment can carry out comprehensive analysis based on the shield slag discharge amount and the ground surface deformation data to determine the ground surface subsidence risk, wherein the ground surface subsidence risk is used for reflecting the possibility risk of rising or sinking of the ground surface.
In a first aspect, the present embodiment, when determining a risk of surface subsidence, includes the steps of:
step S201, determining the earth surface deformation direction based on the earth surface deformation data, wherein the earth surface deformation direction is used for reflecting that the earth surface is deformed in an upward bulge or downward depression;
step S202, comparing the shield slag discharge amount with a preset standard slag discharge amount to obtain a comparison result, wherein the standard slag discharge amount is estimated according to model parameters of the shield mechanism;
and step 203, determining the earth surface subsidence risk according to the comparison result and the earth surface deformation direction.
Specifically, the surface deformation data reflects the surface deformation position and the deformation amount corresponding to the surface deformation position. Thus, the terminal may determine the direction of the surface deformation based on the surface deformation position and the deformation amount, the surface deformation direction being used to reflect whether the surface is an upward bulging deformation or a downward sagging deformation. The ground surface deformation direction determined by the embodiment can more accurately determine whether the ground surface deformation position is upward raised or downward recessed. And then, the terminal compares the obtained shield slag discharge amount with a preset standard slag discharge amount to obtain a comparison result, wherein the standard slag discharge amount is estimated according to model parameters of the shield mechanism. The slag quantity of the shield mechanism is closely related to the model parameters of the shield mechanism, the model parameters determine the data of the shield diameter, the depth and the like of the shield mechanism, and the tunneling speed of the shield mechanism is generally uniform in specific construction, so that the standard slag quantity can be accurately estimated based on the model parameters and/or the working data and the like, and can be used as a reference for judging whether the slag quantity of the shield is normal or not. Therefore, the comparison result obtained by comparing the shield slag amount with the standard slag amount at the terminal reflects whether the shield slag amount at the moment is abnormal or not. If the shield slag amount is abnormal, the determined earth surface can be correspondingly deformed. Therefore, the terminal can determine the earth surface subsidence risk according to the comparison result and the determined earth surface deformation direction.
In one implementation manner, if the terminal determines that the comparison result is that the shield slag discharge amount is larger than the standard slag discharge amount, the terminal indicates that the shield mechanism digs a part of slag soil at the moment, and further if the terminal determines that the surface deformation direction is downward concave deformation, the terminal determines that the surface is truly concave at the moment, so that the terminal can determine that the surface subsidence risk at the moment is concave risk. And if the comparison result shows that the shield slag amount is smaller than or equal to the standard slag amount, the shield mechanism is likely to dig a part of slag soil at the moment, and the earth surface is likely to bulge along with the work of the shield mechanism. Then, if the determined surface deformation direction is upward bulge deformation, the fact that the bulge occurs on the surface at the moment is determined, and the surface bulge risk can be determined to be bulge risk. Therefore, the earth surface subsidence risk can be accurately analyzed by comprehensively analyzing the shield slag amount and the earth surface deformation direction.
And step 300, adjusting tunneling parameters of the shield mechanism according to the earth surface subsidence risk.
After the earth surface subsidence risk is determined, the terminal can adjust the tunneling parameters of the shield mechanism in order to ensure construction safety. The tunneling parameters of the embodiment comprise tunneling depth, tunneling speed, thrust, slag discharging speed and the like.
In one implementation, the method includes the following steps when adjusting the tunneling parameters:
step S301, if the earth surface subsidence risk is a subsidence risk, reducing the tunneling speed and the tunneling depth in the tunneling parameters of the shield mechanism, and adjusting the tunneling direction in the tunneling parameters from the declination to the horizontal;
and step S302, if the earth surface subsidence risk is a rising risk, regulating the tunneling speed and the tunneling depth in the tunneling parameters of the shield mechanism to be large, and regulating the tunneling direction in the tunneling parameters from top to bottom to be horizontal.
Specifically, if the determined earth surface subsidence risk is a subsidence risk, the situation that the amount of the slag excavated by the shield mechanism is too large at the moment, namely, the amount of the slag is too large at a certain position, namely, the shield slag is too large, and the earth surface subsidence is easily caused when the propulsive force of the shield mechanism to the earth is continuously constructed is indicated. Therefore, in order to avoid continuous recession, the embodiment can reduce the tunneling speed and the tunneling depth in the tunneling parameters of the shield mechanism, thereby reducing the slag discharge amount of the shield. Further, the embodiment also adjusts the tunneling direction in the tunneling parameters from the downward direction to the horizontal direction. Therefore, the shield mechanism can shield the earth along the tunneling direction without deviation, and further, excessive residue soil is prevented from being continuously dug at a certain position. In addition, the terminal of the embodiment can reduce the propelling force of the shield mechanism, so that the risk of surface subsidence is further reduced.
If the determined earth surface subsidence risk is a rising risk, the situation that the amount of the slag dug by the shield mechanism is small at this time is indicated, namely the amount of the slag dug by the shield mechanism is small, and the earth surface rising is easy to be caused when the propelling force of the shield mechanism to the soil is continuously constructed is indicated, so that in order to avoid continuous rising, the tunneling speed and the tunneling depth in the tunneling parameters of the shield mechanism can be both increased, the amount of the slag dug by the shield mechanism is increased, and further, the tunneling direction in the tunneling parameters is adjusted from the upper side to the horizontal, so that the condition that too little slag is dug continuously at a certain position is avoided. In addition, the terminal of the embodiment can properly increase the propelling force of the shield mechanism, so that the risk of surface elevation is further reduced.
In summary, in this embodiment, first, when the shield mechanism is tunneled, surface deformation data is acquired based on a preset image acquisition device, where the surface deformation data is used to reflect the surface deformation position and a deformation amount corresponding to the surface deformation position. And then, obtaining the shield slag amount, and comprehensively analyzing the shield slag amount and the ground surface deformation data to determine the ground surface subsidence risk, wherein the ground surface subsidence risk is used for reflecting the possibility risk of rising or sinking of the ground surface. Finally, according to the earth surface subsidence risk, the tunneling parameters of the shield mechanism are adjusted. According to the method and the device for analyzing the earth surface subsidence risk, earth surface subsidence risk in front of the shield mechanism can be accurately analyzed, and tunneling parameters can be timely adjusted according to the earth surface subsidence risk, so that the risk can be timely processed, and construction safety is guaranteed.
Based on the above embodiment, the present invention further provides a device for controlling a front bulge in shield tunnel construction, as shown in fig. 2, the device includes: deformation analysis module 10, risk analysis module 20, and parameter adjustment module 30. Specifically, the deformation analysis module 10 is configured to obtain surface deformation data based on a preset image acquisition device during tunneling of the shield mechanism, where the surface deformation data is used to reflect the surface deformation position and a deformation amount corresponding to the surface deformation position. The risk analysis module 20 is configured to obtain a shield slag amount, and perform comprehensive analysis based on the shield slag amount and the ground surface deformation data to determine a ground surface subsidence risk, where the ground surface subsidence risk is used to reflect a possible risk of a ground surface rising or sinking. The parameter adjustment module 30 is configured to adjust a tunneling parameter of the shield mechanism according to the earth surface subsidence risk.
In one implementation, the deformation analysis module 10 includes:
the tunneling analysis unit is used for acquiring the tunneling direction of the shield mechanism and a tunneling route corresponding to the tunneling direction;
the image acquisition unit is used for setting the image acquisition device according to the tunneling route and acquiring a surface image in a preset time period based on the image acquisition device;
and the deformation analysis unit is used for determining the surface deformation position and the deformation corresponding to the surface deformation position based on the surface image, and taking the surface deformation position and the deformation as the surface deformation data.
In one implementation, the deformation analysis unit includes:
the image analysis unit is used for sequencing all the surface images according to a time sequence, and analyzing each surface image to obtain image characteristics corresponding to each surface image;
the flatness analysis unit is used for determining surface flatness data corresponding to each surface image based on the image characteristics corresponding to each surface image;
and the deformation determining unit is used for determining the surface deformation position and the deformation corresponding to the surface deformation position according to the surface flatness data corresponding to each surface image.
In one implementation, the deformation determination unit includes:
the difference analysis unit is used for sequentially comparing the surface flatness data corresponding to the two adjacent surface images according to the time sequence and determining difference data between the two adjacent surface flatness data;
the data comparison unit is used for comparing each difference data with a preset deformation threshold value and determining target difference data larger than the deformation threshold value from all the difference data;
the position determining unit is used for acquiring a surface image corresponding to the target difference data and determining the surface deformation position based on the surface image corresponding to the target difference data;
and the deformation determining unit is used for determining the deformation corresponding to the surface deformation position based on the target difference data.
In one implementation, the risk analysis module 20 includes:
the direction analysis unit is used for determining the surface deformation direction based on the surface deformation data, and the surface deformation direction is used for reflecting whether the surface is upward bulge deformation or downward recess deformation;
the slag quantity comparison unit is used for comparing the shield slag quantity with a preset standard slag quantity to obtain a comparison result, wherein the standard slag quantity is estimated according to model parameters of the shield mechanism;
and the risk analysis unit is used for determining the earth surface subsidence risk according to the comparison result and the earth surface deformation direction.
In one implementation, the risk analysis unit includes:
the concave determining subunit is used for determining that the earth surface subsidence risk is a subsidence risk if the comparison result shows that the shield slag discharge amount is larger than the standard slag discharge amount and the surface deformation direction is downward concave deformation;
and the bulge determining subunit is used for determining that the earth surface bulge risk is bulge risk if the comparison result shows that the shield slag discharge amount is smaller than or equal to the standard slag discharge amount and the surface deformation direction is upward bulge deformation.
In one implementation, the parameter adjustment module 30 includes:
the subsidence risk adjusting unit is used for adjusting the tunneling speed and the tunneling depth in the tunneling parameters of the shield mechanism to be small if the earth surface subsidence risk is a subsidence risk, and adjusting the tunneling direction in the tunneling parameters from the declination to be horizontal;
and the bulge risk adjustment unit is used for adjusting the tunneling speed and the tunneling depth in the tunneling parameters of the shield mechanism to be large and adjusting the tunneling direction in the tunneling parameters from top to bottom to be horizontal if the earth surface bulge risk is the bulge risk.
The working principle of each module in the shield tunnel construction front bulge control system of the embodiment is the same as that of each step in the method embodiment, and is not repeated here.
Based on the above embodiment, the present invention also provides a terminal, and a schematic block diagram of the terminal may be shown in fig. 3. The terminal may include one or more processors 100 (only one shown in fig. 3), a memory 101, and a computer program 102 stored in the memory 101 and executable on the one or more processors 100, such as a shield tunnel construction front elevation control program. The execution of computer program 102 by one or more processors 100 may implement the various steps of an embodiment of a method for controlling a frontal augmentation system for shield tunnel construction. Alternatively, the functions of the modules/units in the embodiment of the shield tunnel construction front elevation control apparatus may be implemented by the one or more processors 100 when executing the computer program 102, which is not limited herein.
In one embodiment, the processor 100 may be a central processing unit (Central Processing Unit, CPU), but may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
In one embodiment, the memory 101 may be an internal storage unit of the electronic device, such as a hard disk or a memory of the electronic device. The memory 101 may also be an external storage device of the electronic device, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) card, a flash card (flash card) or the like, which are provided on the electronic device. Further, the memory 101 may also include both an internal storage unit and an external storage device of the electronic device. The memory 101 is used to store computer programs and other programs and data required by the terminal. The memory 101 may also be used to temporarily store data that has been output or is to be output.
It will be appreciated by those skilled in the art that the functional block diagram shown in fig. 3 is merely a block diagram of some of the structures associated with the present inventive arrangements and is not limiting of the terminal to which the present inventive arrangements may be applied, as a specific terminal may include more or less components than those shown, or may be combined with some components, or may have a different arrangement of components.
Those skilled in the art will appreciate that implementing all or part of the above-described methods may be accomplished by way of a computer program, which may be stored on a non-transitory computer readable storage medium, that when executed may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, operational database, or other medium used in embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual operation data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The method for controlling the front bulge of the shield tunnel construction is characterized by comprising the following steps of:
acquiring earth surface deformation data based on a preset image acquisition device during tunneling of a shield mechanism, wherein the earth surface deformation data are used for reflecting the earth surface deformation position and the deformation corresponding to the earth surface deformation position;
acquiring shield slag discharge amount, and comprehensively analyzing the shield slag discharge amount and the ground surface deformation data to determine ground surface subsidence risk, wherein the ground surface subsidence risk is used for reflecting the possibility risk of rising or sinking of the ground surface;
and adjusting the tunneling parameters of the shield mechanism according to the earth surface subsidence risk.
2. The method for controlling the subsidence of a front part in shield tunnel construction according to claim 1, wherein the obtaining of the surface deformation data based on the preset image acquisition device during the tunneling of the shield mechanism comprises:
acquiring a tunneling direction of the shield mechanism and a tunneling route corresponding to the tunneling direction;
setting the image acquisition device according to the tunneling route, and acquiring a surface image in a preset time period based on the image acquisition device;
and determining the surface deformation position and the deformation corresponding to the surface deformation position based on the surface image, and taking the surface deformation position and the deformation as the surface deformation data.
3. The method for controlling the subsidence of a front part in shield tunnel construction according to claim 2, wherein the determining the surface deformation position and the deformation amount corresponding to the surface deformation position based on the surface image comprises:
sequencing all the surface images according to a time sequence, and analyzing each surface image to obtain image characteristics corresponding to each surface image;
determining surface flatness data corresponding to each surface image based on image features corresponding to each surface image;
and determining the surface deformation position and the deformation corresponding to the surface deformation position according to the surface flatness data corresponding to each surface image.
4. The method for controlling the subsidence of a front part in shield tunnel construction according to claim 3, wherein the determining the deformation position of the earth surface and the deformation amount corresponding to the deformation position of the earth surface according to the earth surface flatness data corresponding to each earth surface image comprises:
according to the time sequence, sequentially comparing the surface flatness data corresponding to the two adjacent surface images, and determining difference data between the two adjacent surface flatness data;
comparing each difference data with a preset deformation threshold value, and determining target difference data larger than the deformation threshold value from all the difference data;
acquiring a surface image corresponding to the target difference data, and determining the surface deformation position based on the surface image corresponding to the target difference data;
and determining the deformation corresponding to the surface deformation position based on the target difference data.
5. The method for controlling the subsidence of a shield tunnel ahead of construction according to claim 1, wherein the determining the risk of subsidence of the earth surface based on the comprehensive analysis of the shield slag amount and the earth surface deformation data comprises:
determining a ground surface deformation direction based on the ground surface deformation data, wherein the ground surface deformation direction is used for reflecting whether the ground surface is upward bulge deformation or downward recess deformation;
comparing the shield slag discharge amount with a preset standard slag discharge amount to obtain a comparison result, wherein the standard slag discharge amount is estimated according to model parameters of the shield mechanism;
and determining the earth surface subsidence risk according to the comparison result and the earth surface deformation direction.
6. The method for controlling the subsidence in front of shield tunnel construction according to claim 5, wherein determining the subsidence risk according to the comparison result and the direction of the surface deformation comprises:
if the comparison result shows that the shield slag discharge amount is larger than the standard slag discharge amount and the surface deformation direction is downward concave deformation, determining that the earth surface subsidence risk is a subsidence risk;
and if the comparison result shows that the shield slag discharge amount is smaller than or equal to the standard slag discharge amount and the surface deformation direction is upward bulge deformation, determining that the earth surface bulge risk is a bulge risk.
7. The method for controlling the subsidence in front of the shield tunnel construction according to claim 6, wherein the adjusting the tunneling parameters of the shield mechanism according to the earth surface subsidence risk comprises:
if the earth surface subsidence risk is a subsidence risk, reducing the tunneling speed and the tunneling depth in the tunneling parameters of the shield mechanism, and adjusting the tunneling direction in the tunneling parameters from the declination to the horizontal;
and if the earth surface subsidence risk is a subsidence risk, regulating the tunneling speed and the tunneling depth in the tunneling parameters of the shield mechanism to be large, and regulating the tunneling direction in the tunneling parameters from the upper direction to the horizontal direction.
8. A shield tunnel construction front hump-trap control device, characterized in that the device comprises:
the deformation analysis module is used for acquiring earth surface deformation data based on a preset image acquisition device when the shield mechanism is tunneled, wherein the earth surface deformation data are used for reflecting the earth surface deformation position and the deformation corresponding to the earth surface deformation position;
the risk analysis module is used for acquiring the shield slag amount, comprehensively analyzing the shield slag amount and the ground surface deformation data based on the shield slag amount, and determining the ground surface subsidence risk, wherein the ground surface subsidence risk is used for reflecting the possibility risk of rising or sinking of the ground surface;
and the parameter adjustment module is used for adjusting the tunneling parameters of the shield mechanism according to the earth surface subsidence risk.
9. A terminal comprising a memory, a processor and a shield tunnel construction front elevation control program stored in the memory and operable on the processor, wherein the processor, when executing the shield tunnel construction front elevation control program, implements the steps of the shield tunnel construction front elevation control method according to any one of claims 1-7.
10. A computer-readable storage medium, wherein a shield tunnel construction front elevation control program is stored on the computer-readable storage medium, and when executed by a processor, the shield tunnel construction front elevation control program realizes the steps of the shield tunnel construction front elevation control method according to any one of claims 1 to 7.
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| CN202311544999.1A CN117703415A (en) | 2023-11-17 | 2023-11-17 | Method, system, terminal and storage medium for controlling front bulge in shield tunnel construction |
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| CN202311544999.1A CN117703415A (en) | 2023-11-17 | 2023-11-17 | Method, system, terminal and storage medium for controlling front bulge in shield tunnel construction |
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