A substation foundation cave volume detection device based on infrared detection and its use method

Abstract

The present invention provides a substation foundation cave volume detection device based on infrared detection and a method of using the same, belonging to the technical field of cave volume measurement equipment. Five groups of detection modules are sequentially installed on the upper part of the vehicle body, and the detection module in the middle is fixed. The upper part of the hidden storage detection frame is installed on the positioner, and the bottom of the hidden storage detection frame is provided with an infrared detector. The present invention detects the position information and cave volume information of the hidden storage detection frame by the positioner and infrared detector in the hidden storage detection frame, thereby analyzing the infrared radiation emitted by the objects inside the cave, generating accurate three-dimensional models of caves of different depths, calculating the cave volume, and forming a cave capacity distribution map, providing information guarantee for later engineering construction; by combining the hidden storage detection frame with the first detection drill bit, the storage and deployment of the detection frame are convenient, the link of loading the withdrawn detection drill rod into the detection device is reduced, the detection process is optimized, and the efficiency of cave detection is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of karst cave volume measurement equipment, and specifically to a substation foundation karst cave volume detection device based on infrared detection and a use method thereof. Background Art

[0002] In recent years, substation construction and subway construction are in full swing, and some engineering problems have also emerged one after another, such as the need to construct substation foundations in areas with caves. Caves are underground spaces formed by karst action in soluble rocks. The formation of caves is the result of long-term dissolution of groundwater in limestone areas. The insoluble calcium carbonate in limestone can be converted into soluble calcium bicarbonate by the action of water and carbon dioxide. When the substation foundation is built on such caves, it often causes foundation deformation problems such as insufficient bearing capacity, uneven settlement, foundation sliding and collapse. Because of this geological situation, engineering generally uses concrete for filling and treatment. Only by accurately knowing the volume of the cave can we formulate corresponding engineering treatment measures, pass through the karst development area more smoothly, and escort the construction of the project. In the actual construction process, the construction unit does not know the exact volume of the cave, and cannot clearly formulate the corresponding implementation plan. This uncertainty causes the consumption of manpower and material resources, increases costs, and even causes confusion in the process and delays in the construction period. This further shows that data related to the volume of caves is extremely critical to engineering construction and provides important reference for the project. Therefore, the stability of karst foundations containing hidden caves has become a prominent issue in substation construction.

[0003] The patent application with the announcement number CN213422305U provides a volume measurement system for a non-connected cave, including: an air pipeline, an air filling device, a gas storage container, a first pressure and temperature detection module, and a second pressure and temperature detection module; the air pipeline is arranged in a borehole, and one end of the air pipeline extends into the cave, and the other end extends out of the ground; the gas outlet end of the air filling device and the gas outlet end of the gas storage container are both connected to the other end of the air pipeline, the first pressure and temperature detection module is arranged in the cave, and is used to detect the pressure and temperature of the gas in the cave, and the second pressure and temperature detection module is arranged in the gas storage container, and is used to detect the pressure and temperature of the gas in the gas storage container. The gas injected into the cave by the air filling device is air, and the gas storage container also stores air. Compared with the previous method of injecting volatile substances into the cave and measuring the volume of the cave by the change of air density in the cave, it not only simplifies the measurement steps, the measurement results are accurate, but also saves the measurement cost.

[0004] The patent application with announcement number CN113433599B provides a method and device for cave morphology exploration, including an infrared detector for infrared temperature detection, a jet assembly mounted on a down-the-hole hammer for spraying hot steam, and a water level sensor arranged on the down-the-hole hammer. The water level sensor cooperates with the jet assembly and the infrared detector. When the water level sensor detects that the water level in the borehole is lower than a threshold value, a start signal is sent to the jet assembly and the infrared detector. The jet assembly sprays hot steam, and the infrared detector starts infrared temperature detection and records data.

[0005] The patent application with announcement number CN217303940U provides an underground cave insertion detection mechanism, including a main rod and a main detection rod fixedly connected to the bottom end of the main rod, at least four side detection rods are distributed in a ring on the top of the main rod, the side detection rods include an adjusting rod rotating with the main rod and an extension rod slidably connected to the adjusting rod, the top of the main rod is rotatably connected with an adjusting mechanism for adjusting and driving the side detection rods to reel in; the adjusting rod can be extended to the surroundings, thereby forming a main detection probe on the main detection rod to detect the situation of the entire cave, and according to the detection situation of the main detection probe, the adjusting rod is driven to rotate through the adjustment mechanism at different positions, and after the extension rod slides on the adjusting rod to adjust the length, the side detection probe on the side detection rod can detect the edge area of ​​the cave, and have a better understanding of the internal gaps and inner wall conditions, thereby improving the filling quality.

[0006] Although the above technical solutions can improve the convenience of cave detection to a certain extent, there are still some problems: First, in the previous gas cave volume measurement method, the connectivity of some caves caused gas overflow, and the cave volume could not be accurately measured; second, the operation process was cumbersome, and other equipment was required to perform drilling, drilling back and other operations before the detection was realized; third, the detection function was single and could not provide a strong and feasible reference basis for subsequent engineering construction.

[0007] In summary, it is necessary to improve the existing cave detection equipment. Summary of the invention

[0008] In order to comprehensively solve the above problems, especially to address the deficiencies in the prior art, the present invention provides a substation foundation cave volume detection device based on infrared detection and a method of using the same, which can comprehensively solve the above problems.

[0009] To achieve the above purpose, the present invention adopts the following technical means:

[0010] In the first aspect, the present invention provides a substation foundation cave volume detection device based on infrared detection, comprising a mobile vehicle head, a vehicle body is provided at the rear of the mobile vehicle head, a moving wheel is installed at the bottom of the vehicle body, a controller is installed at the upper rear side of the vehicle body, five groups of detection modules are installed in sequence on the upper part of the vehicle body, and the detection module in the middle is fixed, and the four groups of detection modules on the left and right sides are movable, a detection drill rod is provided in the middle of the detection module, a first detection drill bit is installed at the bottom of the detection drill rod, a hidden storage detection frame is provided inside the first detection drill bit, a locator for real-time monitoring of its position information is installed on the upper part of the hidden storage detection frame, an infrared detector is provided at the bottom of the hidden storage detection frame, and the infrared detector is used to detect cave capacity information at different drilling depths based on infrared radiation;

[0011] A slurry delivery pipe is provided inside the detection drill rod, a slurry inlet is provided at the upper part of the slurry delivery pipe, a first pressure sensor is provided inside the slurry inlet, a telescopic corrugated tube is provided at the bottom of the slurry delivery pipe, an interface pipe interface is connected to the bottom end of the telescopic corrugated tube, a second pressure sensor is provided inside the interface pipe interface, a detection drive motor is connected to the left side of the interface pipe interface, a second detection drill bit is provided at the front end of the detection drive motor, a pipeline passing through the detection drive motor and the second detection drill bit is provided, a third pressure sensor and a flow rate sensor are installed in the pipeline, the first pressure sensor, the second pressure sensor and the third pressure sensor are respectively used to detect the slurry pressure information of the slurry inlet, the interface pipe interface and the pipeline outlet of the slurry delivery pipe, and the flow rate sensor is used to detect the slurry flow rate information in the pipeline;

[0012] The controller is wirelessly connected to the locator, infrared detector, first pressure sensor, second pressure sensor, third pressure sensor and flow rate sensor respectively. The controller is used to form a cave capacity distribution map through cave capacity information at different drilling depths, and to form a permeability distribution map through slurry pressure information and slurry flow rate information.

[0013] Furthermore, the detection module includes a detection frame, a first drive motor is provided on the top of the detection frame, an output end of the first drive motor is connected to a first screw rod, a first slide is sleeved on the first screw rod, and a second drive motor is connected to the upper part of the first slide.

[0014] Furthermore, the output end of the second driving motor is connected to a rotating rod frame, four groups of rotating frames are arranged at the bottom of the rotating rod frame, and the detection drill rod is installed at the bottom of the rotating frame.

[0015] Furthermore, a third drive motor is fixedly installed on the side wall of the bottom end of the detection drill rod, the output end of the third drive motor is connected to a second screw rod, a second slide is sleeved on the second screw rod, a supporting slide is connected to the bottom of the second slide, and the detection drive motor is provided at the front end of the second slide.

[0016] Furthermore, a bottom shaft frame is provided at the bottom of the first detection drill bit, a protruding opening is provided in the middle of the bottom shaft frame, a first micro drive motor is symmetrically embedded on both sides of the protruding opening, an output end of the first micro drive motor is connected to a first micro screw, a first micro slide is sleeved on the upper part of the first micro screw, a U-shaped closed baffle is provided at the front end of the first micro slide, a card slot is provided at the front end of the U-shaped closed baffle on the left side of the bottom shaft frame, a card block is provided at the front end of the U-shaped closed baffle on the right side of the bottom shaft frame, and the protruding opening is closed when two groups of the U-shaped closed baffles are unfolded, and the protruding opening is in a through state when the two groups of the U-shaped closed baffles are stored.

[0017] Furthermore, a receiving groove is provided inside the first detection drill bit, and a second type driving motor is installed at the top end of the receiving groove.

[0018] The output end of the second type driving motor is connected to a second micro screw, the upper part of the second micro screw is sleeved with a second micro slide, a fixing frame is installed at the bottom of the second micro slide, and the bottom of the fixing frame is provided with the hidden storage detection frame.

[0019] A movable frame is provided at the bottom of the four groups of movable detection modules, a storage hydraulic pump is installed inside the movable frame, a storage shaft is provided at the front end of the storage hydraulic pump, and the front end of the storage shaft is connected to another movable frame.

[0020] A supporting hydraulic pump is provided at the bottom of the movable frame, a supporting shaft is provided at the front end of the supporting hydraulic pump, and a supporting movable wheel is installed on the side of the supporting shaft. The first detection drill bit operates on the foundation of the substation, and the infrared detector in the first detection drill bit detects the caves existing in the foundation of the substation.

[0021] In a second aspect, the present invention provides a method for using the substation foundation cave volume detection device based on infrared detection according to the first aspect, comprising the following steps:

[0022] S1. Move the equipment to a convenient location on the substation foundation, and use a set of detection modules fixed on the upper part of the vehicle body as the origin for subsequent detection and analysis;

[0023] S2, unfold the other four sets of movable detection modules through the storage hydraulic pump in the mobile frame, and then support the mobile wheels to contact the ground, and use the five sets of detection modules to measure the location and capacity information of caves at different depths and the permeability information of each rock layer;

[0024] S3, drilling into the substation foundation by using the first driving motor and the detection drill rod, and stopping at different depths for measurement;

[0025] S4, control the detection drill rod to move upward, start the first micro drive motor to change the extension port into a through state, then start the second drive motor to unfold the hidden storage detection frame, and the positioner and infrared detector begin to detect the position information and cave volume information of the hidden storage detection frame, so as to analyze the infrared radiation emitted by the objects inside the cave, generate accurate three-dimensional models of caves at different depths of the foundation, calculate the volume of each cave, form a cave capacity distribution map, and realize the accurate positioning of the cave and the accuracy of the volume measurement of each cave;

[0026] S5, start the third drive motor and the detection drive motor, drill the second detection drill bit into the rock formation, connect the external grouting equipment, perform grouting operation under constant pressure, detect the change of the inlet and outlet slurry pressure and the flow rate of the slurry based on the first pressure sensor, the second pressure sensor, the third pressure sensor and the flow rate sensor to analyze and detect the permeability of the slurry in different rock formations, obtain the permeability of the slurry in the rock formation at different drilling depths to form a permeability distribution map, then separate the grouting equipment and continue the operation;

[0027] S6, reversely start the third drive motor, the detection drive motor and the second drive motor to restore the second detection drill bit and the hidden storage detection frame to their original positions, repeat steps S3 to S5, and perform measurement and detection at different depths;

[0028] S7. Repeat steps S1 to S2, move the device forward a certain distance, and then continue with steps S3 to S6 to detect each row and achieve the effect of overall measurement of the substation foundation.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. Improve the accuracy of cave volume measurement. The present invention sets a locator and an infrared detector in the hidden storage detection frame to detect the position information of the hidden storage detection frame and the cave volume information, and generates an accurate three-dimensional model of caves at different depths of the foundation by analyzing the infrared radiation emitted by objects inside the cave, calculates the cave volume, and forms a cave capacity distribution map, thereby achieving accurate positioning of the cave and accurate measurement of the volume of each cave, providing information guarantee for later engineering construction.

[0031] 2. Improve detection efficiency. The present invention combines the hidden storage detection frame with the first detection drill bit to facilitate the storage and deployment of the detection frame, reduce the steps of loading the detection drill rod into the detection device, optimize the detection process, and improve the efficiency of cave detection.

[0032] 3. Multifunctional detection. Based on the cave volume detection, the present invention sets three sets of pressure sensors and flow rate sensors on the side of the detection drill pipe. Through the changes in the inlet and outlet slurry pressure and the slurry flow rate, the permeability of slurry in different rock formations is analyzed and detected based on Darcy's law, providing an operating basis for the subsequent cave filling and grouting operations, and realizing multiple detections of cave location and permeability. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the structure of the present invention when it is unfolded;

[0034] Figure 2 It is the front view of the present invention when it is unfolded;

[0035] Figure 3 It is a right side view of the present invention when it is unfolded;

[0036] Figure 4 It is a distribution diagram of cave capacity at different depths obtained by analyzing the data of each detection module of the present invention;

[0037] Figure 5 It is a distribution diagram of rock layer permeability at different depths obtained by analyzing the data of each detection module of the present invention;

[0038] Figure 6 It is a schematic diagram of the detection range of the present invention;

[0039] Figure 7 It is a schematic diagram of the structure of the present invention during detection;

[0040] Figure 8 It is a schematic diagram of the structure of the present invention when it is stored;

[0041] Fig. 9 It is a right side view of the present invention when it is stored;

[0042] Fig.10 It is a schematic diagram of the structure of the detection module of the present invention;

[0043] Fig.11 This is a front view of the detection module of the present invention;

[0044] Fig.12 The present invention Fig.11 A partial enlarged view of the middle part;

[0045] Fig.13 It is a schematic diagram of the structure of the first detection drill bit of the present invention;

[0046] Fig.14 This is a schematic diagram of the structure of the hidden storage and detection rack of the present invention when it is stored;

[0047] Fig.15 It is a structural schematic diagram of the hidden storage and detection rack of the present invention when it is unfolded.

[0048] In the figure: 1, mobile vehicle head; 2, vehicle body; 3, mobile wheel; 4, controller; 5, detection module; 6, substation foundation; 7, cave; 51, detection frame; 52, first drive motor; 53, first screw rod; 54, first slide seat; 55, second drive motor; 56, rotating rod frame; 57, rotating frame; 58, detection drill rod; 59, slurry delivery pipe; 60, third drive motor; 61, first detection drill bit; 62, mobile frame; 63, support hydraulic pump; 591, slurry inlet; 592, first pressure sensor; 593, telescopic corrugated tube; 594, interface pipe interface; 601, second screw rod; 602, second slide seat; 603, support slide seat; 604, detection drive motor; 605, second detection drill bit; 61 1. Bottom shaft frame; 612. Extension port; 613. Storage slot; 614. Second type drive motor; 615. Hidden storage detection frame; 621. Storage hydraulic pump; 622. Storage shaft; 631. Support shaft; 632. Support moving wheel; 5941. Second pressure sensor; 6051. Pipeline; 6052. Third pressure sensor; 6053. Flow rate sensor; 6111. First micro drive motor; 6112. First micro lead screw; 6113. First micro slide; 6114. U-shaped closed baffle; 6115. Card slot; 6116. Card block; 6141. Second micro lead screw; 6142. Second micro slide; 6143. Fixing frame; 6151. Positioner; 6152. Infrared detector. DETAILED DESCRIPTION

[0049] The present invention is further described below in conjunction with the accompanying drawings: Embodiment 1:

[0050] like Figures 1 to 3 and Figure 7 As shown, in one embodiment of the present invention, a substation foundation cave volume detection device based on infrared detection includes a mobile front 1, a body 2 is provided at the rear of the mobile front 1, a moving wheel 3 is installed at the bottom of the body 2, a controller 4 is installed at the upper rear side of the body 2, five groups of detection modules 5 are installed in sequence on the upper part of the body 2, and the middle detection module 5 is fixed, and the four groups of detection modules 5 on the left and right sides are movable. After the five groups of detection modules 5 are unfolded, the distance between two adjacent detection modules is 2m, and a detection drill rod 58 is provided in the middle of the detection module 5, and a first detection drill bit 61 is installed at the bottom of the detection drill rod 58, and a hidden storage detection frame 615 is provided inside the first detection drill bit 61.

[0051] like Figure 3 , Figure 4 , Figures 13 to 15As shown, a locator 6151 for real-time monitoring of its position information is installed on the upper part of the hidden storage detection frame 615, and an infrared detector 6152 is provided at the bottom of the hidden storage detection frame 615. The infrared detector 6152 is used to detect the karst cave capacity information at different drilling depths based on infrared radiation. The controller 4 is respectively connected to the locator 6151 and the infrared detector 6152 through wireless communication to achieve data transmission and remote monitoring. The CPU processing unit inside the controller 4 is used to form a karst cave capacity distribution map through the karst cave capacity information at different drilling depths.

[0052] like Figures 1 to 4 and Fig.11 , Fig.12 As shown, the detection module 5 includes a detection frame 51, a first driving motor 52 is provided on the top of the detection frame 51, the output end of the first driving motor 52 is connected to a first screw rod 53, a first slide 54 is sleeved on the first screw rod 53, and a second driving motor 55 is connected to the upper part of the first slide 54; the output end of the second driving motor 55 is connected to a rotating rod frame 56, four groups of rotating frames 57 are provided at the bottom of the rotating rod frame 56, and the detection drill rod 58 is installed at the bottom of the rotating frame 57.

[0053] like Figures 13 to 15 As shown, a bottom shaft frame 61 is provided at the bottom of the first detection drill bit 61, and a protruding opening 612 is provided in the middle of the bottom shaft frame 611, and first micro-drive motors 6111 are symmetrically embedded on both sides of the protruding opening 612, and a first micro-screw 6112 is provided at the output end of the first micro-drive motor 6111, and a first micro-slide 6113 is sleeved on the upper part of the first micro-screw 6112, and a U-shaped closed baffle 6114 is provided at the front end of the first micro-slide 6113, and a card slot 6115 is provided at the front end of the U-shaped closed baffle 6114 on the left side of the bottom shaft frame 611, and a card block 6116 is provided at the front end of the U-shaped closed baffle 6114 on the right side of the bottom shaft frame 611, and when two groups of the U-shaped closed baffles 6114 are unfolded, the protruding opening 612 is closed, and when the two groups of the U-shaped closed baffles 6114 are stored, the protruding opening 612 is in a through state.

[0054] like Figures 12 to 15 As shown, a storage groove 613 is provided inside the first detection drill bit 61, and a second type driving motor 614 is installed at the top of the storage groove 613; a second micro screw 6141 is provided at the output end of the second type driving motor 614, and a second micro slide 6142 is sleeved on the upper part of the second micro screw 6141, and a fixing frame 6143 is installed at the bottom of the second micro slide 6142, and a hidden storage detection frame 615 is provided at the bottom of the fixing frame 6143.

[0055] Further, the first drive motor 52 is started, the first drive motor 52 drives the first screw rod 53 to rotate, the first screw rod 53 drives the first slide 54 to move downward, the first slide 54 drives the second drive motor 55 to move downward, and at the same time the second drive motor 55 is started, the second drive motor 55 drives the detection drill rod 58 to start rotating, the first detection drill bit 61 drills a hole in the substation foundation 6, the drilling depth stops after 1m, and the first drive motor 52 rotates in the opposite direction for a period of time, the first detection drill bit 61 is lifted up by 5cm, the volume of the cave is detected, the first micro drive motor 6111 is started, the first micro drive motor 6111 drives the two sets of U-shaped closed baffles 6114 to move inward for storage, at this time the protruding port 612 is in a through state, and then the second type The drive motor 614 is started, and the second drive motor 614 drives the second micro slide 6142 to move downward. The second micro slide 6142 moves the hidden storage detection frame 615 out of the first detection drill bit 61, and the positioner 6151 and the infrared detector 6152 on the upper part of the hidden storage detection frame 615 start to work to detect the position information and cave volume information of the hidden storage detection frame 615. The controller analyzes the infrared radiation emitted by the objects inside the cave, generates an accurate three-dimensional model of the caves at different depths of the foundation, calculates the volume of each cave 7, and forms a cave capacity distribution map, thereby realizing the precise positioning of the cave and the accuracy of the volume measurement of each cave, and obtaining the volume of each cave at different drilling depths to form a cave volume distribution map, thereby providing information guarantee for the later engineering construction.

[0056] like Figures 5 to 12 As shown, a slurry delivery pipe 59 is provided inside the detection drill rod 58, a slurry inlet 591 is provided on the upper part of the slurry delivery pipe 59, a first pressure sensor 592 is provided inside the slurry inlet 591, a telescopic corrugated tube 593 is provided at the bottom of the slurry delivery pipe 59, an interface pipe interface 594 is connected to the bottom end of the telescopic corrugated tube 593, a second pressure sensor 5941 is provided inside the interface pipe interface 594, a detection drive motor 604 is connected to the left side of the interface pipe interface 594, a second detection drill bit 605 is provided at the front end of the detection drive motor 604, a pipe 6051 passing through the detection drive motor 604 and the second detection drill bit 605 is provided, and a third pressure sensor 6052 and a flow rate sensor 6053 are installed in the pipe 6051.

[0057] like Figures 5 to 12As shown, the first pressure sensor 592, the second pressure sensor 5941 and the third pressure sensor 6052 are respectively used to detect the slurry pressure information at the slurry inlet 591, the interface pipe interface 594 and the outlet of the pipeline 6051 of the slurry delivery pipe 59, and the flow rate sensor 6053 is used to detect the slurry flow rate information in the pipeline 6051. The controller 4 is respectively connected to the first pressure sensor 592, the second pressure sensor 5941, the third pressure sensor 6052 and the flow rate sensor 6053 through wireless communication to realize data transmission and remote monitoring. The CPU processing unit inside the controller 4 is used to form a permeability distribution map through the slurry pressure information and the slurry flow rate information.

[0058] like Figures 5 to 12 As shown, a third drive motor 60 is fixedly installed on the side of the bottom end of the detection drill rod 58, and a second screw rod 601 is provided at the output end of the third drive motor 60. A second slide 602 is sleeved on the second screw rod 601, a supporting slide 603 is connected to the bottom of the second slide 602, and a detection drive motor 604 is provided at the front end of the second slide 602.

[0059] Further, the third drive motor 60 is started, and the third drive motor 60 drives the second screw rod 601 to rotate, and the second screw rod 601 drives the detection drive motor 604 at the front end of the second slide 602 to move forward. At the same time, the detection drive motor 604 is started, and the detection drive motor 604 drives the second detection drill bit 605 to rotate. At this time, the second detection drill bit 605 moves out of the detection drill rod 58 and enters the rock formation. The third drive motor 60 and the detection drive motor 604 stop, and the external grouting equipment is connected through the slurry inlet 591. Constant pressure grouting is performed, and the controller 4 detects the changes in the inlet and outlet slurry pressures and the slurry flow rate analysis based on the first pressure sensor 592, the second pressure sensor 5941, the third pressure sensor 6052 and the flow rate sensor 6053 to detect the permeability of slurry in different rock formations. Embodiment 2:

[0060] like Figures 10 to 13 As shown, in one embodiment of the present invention, a substation foundation cave volume detection device based on infrared detection, on the basis of Example 1, a mobile frame 62 is provided at the bottom of the four groups of movable detection modules 5, a storage hydraulic pump 621 is installed inside the mobile frame 62, a storage shaft 622 is provided at the front end of the storage hydraulic pump 621, and the front end of the storage shaft 622 is connected to another mobile frame 62.

[0061] like Figures 6 to 10As shown, a supporting hydraulic pump 63 is provided at the bottom of the movable frame 62, a supporting shaft 631 is provided at the front end of the supporting hydraulic pump 63, and a supporting movable wheel 632 is installed on the side of the supporting shaft 631; the first detection drill bit 61 operates on the substation foundation 6, and the infrared detector 6152 in the first detection drill bit 61 detects the cave 7 existing in the substation foundation 6.

[0062] Furthermore, the equipment is started at the boundary position of the substation foundation 6, and a set of detection modules 5 fixed on the upper part of the vehicle body 2 is used as the origin position, and the other four sets of detection modules 5 are deployed through the storage hydraulic pump 621 and the storage shaft 622 in the mobile seat frame 62, and the five sets of detection modules 5 measure the position, capacity information and permeability information of caves of different depths and each rock layer, and form the attached Figure 4 and attached Figure 5 The cave capacity distribution map and permeability distribution map provide information support for later construction.

[0063] Working principle:

[0064] During the substation foundation construction, the equipment is transported to the location of the substation foundation 6 at the substation construction site.

[0065] The equipment is started at the boundary position of the substation foundation 6, and a set of detection modules 5 fixed on the upper part of the vehicle body 2 is used as the origin position. The other four sets of detection modules 5 are unfolded through the storage hydraulic pump 621 and the storage shaft 622 in the mobile seat frame 62, and then the support moving wheel 632 is unfolded through the support hydraulic pump 63 to contact the ground. The five sets of detection modules 5 measure the position, capacity information and permeability information of caves of different depths and each rock layer, and form the attached Figure 4 and attached Figure 5 The cave capacity distribution map and permeability distribution map provide information support for later construction.

[0066] During use, the first drive motor 52 is started, the first drive motor 52 drives the first screw rod 53 to rotate, the first screw rod 53 drives the first slide 54 to move downward, the first slide 54 drives the second drive motor 55 to move downward, and at the same time the second drive motor 55 is started, the second drive motor 55 drives the detection drill rod 58 to start rotating, the first detection drill bit 61 drills a hole in the substation foundation 6, and stops rotating after the drilling depth reaches 1m, and the first drive motor 52 rotates in the opposite direction for a period of time to lift the first detection drill bit 61 up by 5cm.

[0067] Next, the rock formation permeability is detected, the third drive motor 60 is started, the third drive motor 60 drives the second screw rod 601 to rotate, the second screw rod 601 drives the detection drive motor 604 at the front end of the second slide 602 to move forward, and at the same time the detection drive motor 604 is started, the detection drive motor 604 drives the second detection drill bit 605 to rotate, at this time the second detection drill bit 605 moves out of the detection drill rod 58 into the rock formation, the third drive motor 60 and the detection drive motor 604 stop, and the external grouting equipment is connected through the slurry inlet 591, and constant pressure grouting is performed. Based on the first pressure sensor 592, the second pressure sensor 5941, the third pressure sensor 6052 and the flow rate sensor 6053, the changes in the inlet and outlet slurry pressures and the slurry flow rate analysis are used to detect the permeability of slurry in different rock formations, and the permeability of the rock formation slurry at different drilling depths is obtained to form a permeability distribution diagram, and finally the grouting equipment is separated to continue other operations.

[0068] At the same time, the volume of the cave begins to be detected, the first micro-drive motor 6111 is started, and the first micro-drive motor 6111 drives the two groups of U-shaped closed baffles 6114 to move inward for storage. At this time, the protruding port 612 is in a through state, and then the second type drive motor 614 is started, and the second type drive motor 614 drives the second micro-slide 6142 to move downward, and the second micro-slide 6142 moves the hidden storage detection frame 615 out of the first detection drill bit 61, and the positioner 6151 and the infrared detector 6152 on the upper part of the hidden storage detection frame 615 start to work, and detect the position information of the hidden storage detection frame 615 and the volume information of the cave, so as to analyze the infrared radiation emitted by the objects inside the cave, generate an accurate three-dimensional model of the caves at different depths of the foundation, calculate the volume of each cave 7, and form a cave capacity distribution map, so as to achieve accurate positioning of the cave and the accuracy of measuring the volume of each cave, and obtain the volume of each cave at different drilling depths to form a cave volume distribution map, so as to provide information guarantee for later engineering construction.

[0069] Finally, start the third drive motor 60, the detection drive motor 604 and the second drive motor 614 in reverse to restore the second detection drill bit 605 and the hidden storage detection frame 615 to their original positions, and repeat the above operations to perform measurement and detection at different depths.

[0070] After one row of inspection is completed, the equipment moves forward a certain distance and repeats the above operation until the entire substation foundation 6 is inspected. In subsequent construction operations, the cave measurement and analysis diagram obtained in the above manner is used for construction. Embodiment 3:

[0071] This embodiment provides a method for using the substation foundation cave volume detection device based on infrared detection described in Embodiment 1 or Embodiment 2, and the steps are as follows:

[0072] S1. Move the equipment to a convenient location on the substation foundation 6, and perform subsequent detection and analysis with a group of detection modules 5 fixed on the upper part of the vehicle body 2 as the origin.

[0073] S2. The other four groups of movable detection modules 5 are unfolded by the storage hydraulic pump 621 in the mobile frame 62, and then the supporting moving wheels 632 are in contact with the ground, and the five groups of detection modules 5 are used to measure the location, capacity information and permeability information of caves of different depths and each rock layer.

[0074] S3. Drilling is performed into the substation foundation 6 by using the first driving motor 52 and the detection drill rod 58, and the drill stops at different depths (such as 1m, 2m, 3m, 4m, and 5m) for measurement.

[0075] S4, control the detection drill rod 58 to move upward by 0.5 cm, start the first micro drive motor 6111 to change the extension port 612 into a through state, then start the second drive motor 614 to unfold the hidden storage detection frame 615, and the positioner 6151 and the infrared detector 6152 begin to detect the position information and the volume information of the hidden storage detection frame 615, so as to analyze the infrared radiation emitted by the objects inside the cave, generate an accurate three-dimensional model of the caves at different depths of the foundation, and calculate the volume of each cave 7, such as Figure 4 A cave capacity distribution map is formed to achieve precise positioning of caves and accurate measurement of the volume of each cave.

[0076] S5, start the third drive motor 60 and the detection drive motor 604, drill the second detection drill bit 605 into the rock formation, connect the external grouting equipment, and perform grouting operation under constant pressure. Based on the first pressure sensor 592, the second pressure sensor 5941, the third pressure sensor 6052 and the flow rate sensor 6053, the changes in the inlet and outlet slurry pressure and the slurry flow rate analysis are used to detect the permeability of the slurry in different rock formations, such as Figure 5 The permeability of the rock slurry is obtained at different drilling depths to form a permeability distribution map, and then the grouting equipment is separated and the operation continues.

[0077] S6. Reversely start the third drive motor 60, the detection drive motor 604 and the second drive motor 614 to restore the second detection drill bit 605 and the hidden storage detection frame 615 to their original positions, and repeat steps S3 to S5 to perform measurement and detection at different depths.

[0078] S7, repeat steps S1 to S2, move the device forward a certain distance, and then continue with steps S3 to S6 to detect each row and achieve the effect of measuring the entire substation foundation 6.

[0079] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0080] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A substation foundation cave volume detection device based on infrared detection, comprising a mobile vehicle head (1), a vehicle body (2) is provided at the rear of the mobile vehicle head (1), a moving wheel (3) is installed at the bottom of the vehicle body (2), and a controller (4) is installed at the upper rear side of the vehicle body (2), characterized in that: Five groups of detection modules (5) are sequentially installed on the upper part of the vehicle body (2), and the detection module (5) in the middle is fixed, while the four groups of detection modules (5) on the left and right sides are movable. A detection drill rod (58) is provided in the middle of the detection module (5), and a first detection drill bit (61) is installed at the bottom of the detection drill rod (58). A hidden storage detection frame (615) is provided inside the first detection drill bit (61), and a locator (6151) for real-time monitoring of its position information is installed on the upper part of the hidden storage detection frame (615). An infrared detector (6152) is provided at the bottom of the hidden storage detection frame (615), and the infrared detector (6152) is used to detect cave capacity information at different drilling depths based on infrared radiation; A slurry delivery pipe (59) is provided inside the detection drill rod (58), a slurry inlet (591) is provided at the top of the slurry delivery pipe (59), a first pressure sensor (592) is provided inside the slurry inlet (591), a telescopic corrugated tube (593) is provided at the bottom of the slurry delivery pipe (59), a port pipe interface (594) is connected to the bottom end of the telescopic corrugated tube (593), a second pressure sensor (5941) is provided inside the port pipe interface (594), a detection drive motor (604) is connected to the left side of the port pipe interface (594), and a second detection drill bit (604) is provided at the front end of the detection drive motor (604). 05), a pipeline (6051) is provided through the detection drive motor (604) and the second detection drill bit (605), and a third pressure sensor (6052) and a flow rate sensor (6053) are installed in the pipeline (6051), the first pressure sensor (592), the second pressure sensor (5941) and the third pressure sensor (6052) are used to detect the slurry pressure information at the slurry inlet (591), the interface pipe interface (594) and the outlet of the pipeline (6051), respectively, and the flow rate sensor (6053) is used to detect the slurry flow rate information in the pipeline (6051); The controller (4) is respectively connected to the locator (6151), the infrared detector (6152), the first pressure sensor (592), the second pressure sensor (5941), the third pressure sensor (6052) and the flow rate sensor (6053) via wireless communication. The controller (4) is used to form a karst cave capacity distribution map based on karst cave capacity information at different drilling depths, and to form a permeability distribution map based on slurry pressure information and slurry flow rate information. A bottom shaft frame (611) is provided at the bottom of the first detection drill bit (61), a projection opening (612) is provided in the middle of the bottom shaft frame (611), first micro drive motors (6111) are symmetrically embedded on both sides of the projection opening (612), the output end of the first micro drive motor (6111) is connected to a first micro lead screw (6112), the upper part of the first micro lead screw (6112) is sleeved with a first micro slide seat (6113), and the front end of the first micro slide seat (6113) is A U-shaped closed baffle (6114) is provided, the front end of the U-shaped closed baffle (6114) on the left side of the bottom shaft frame (611) is provided with a clamping groove (6115), the front end of the U-shaped closed baffle (6114) on the right side of the bottom shaft frame (611) is provided with a clamping block (6116), and when the two sets of the U-shaped closed baffles (6114) are unfolded, the protruding opening (612) is closed, and when the two sets of the U-shaped closed baffles (6114) are stored, the protruding opening (612) is in a through state; A receiving groove (613) is provided inside the first detection drill bit (61), and a second type driving motor (614) is installed at the top end of the receiving groove (613); The output end of the second type driving motor (614) is connected to a second micro screw (6141); the upper portion of the second micro screw (6141) is sleeved with a second micro slide (6142); a fixing frame (6143) is installed at the bottom of the second micro slide (6142); and the bottom of the fixing frame (6143) is provided with the hidden storage detection frame (615); A movable seat frame (62) is provided at the bottom of the four groups of movable detection modules (5), a storage hydraulic pump (621) is installed inside the movable seat frame (62), a storage shaft (622) is provided at the front end of the storage hydraulic pump (621), and the front end of the storage shaft (622) is connected to another movable seat frame (62); A supporting hydraulic pump (63) is provided at the bottom of the movable seat frame (62), a supporting shaft (631) is provided at the front end of the supporting hydraulic pump (63), and a supporting movable wheel (632) is installed on the side of the supporting shaft (631). The first detection drill bit (61) operates on the substation foundation (6), and the infrared detector (6152) in the first detection drill bit (61) detects the karst cave (7) existing in the substation foundation (6).

2. According to claim 1, a substation foundation cave volume detection device based on infrared detection is characterized in that: The detection module (5) comprises a detection frame (51), a first drive motor (52) is provided on the top of the detection frame (51), a first screw rod (53) is connected to the output end of the first drive motor (52), a first slide seat (54) is sleeved on the first screw rod (53), and a second drive motor (55) is connected to the upper part of the first slide seat (54).

3. The device for detecting the volume of a substation foundation cave based on infrared detection according to claim 2 is characterized in that: The output end of the second driving motor (55) is connected to a rotating rod frame (56), four sets of rotating frames (57) are provided at the bottom of the rotating rod frame (56), and the detection drill rod (58) is installed at the bottom of the rotating frame (57).

4. The device for detecting the volume of a substation foundation cave based on infrared detection according to claim 3 is characterized in that: A third drive motor (60) is fixedly mounted on the side wall of the bottom end of the detection drill rod (58); the output end of the third drive motor (60) is connected to a second screw rod (601); a second slide seat (602) is sleeved on the second screw rod (601); a support slide seat (603) is connected to the bottom of the second slide seat (602); and the detection drive motor (604) is provided at the front end of the second slide seat (602).

5. A method for using the substation foundation cave volume detection device based on infrared detection according to claim 4, characterized in that: The steps include: S1, moving the equipment to a convenient location on the substation foundation (6), and taking a set of detection modules (5) fixed on the upper part of the vehicle body (2) as the origin position for subsequent detection and analysis; S2, unfolding the other four groups of movable detection modules (5) by means of the storage hydraulic pump (621) in the movable frame (62), and then supporting the movable wheels (632) to contact the ground, and using the five groups of detection modules (5) to measure the location and capacity information of caves at different depths and the permeability information of each rock layer; S3, drilling into the substation foundation (6) using a first drive motor (52) and a detection drill rod (58), stopping at different depths for measurement; S4, controlling the detection drill rod (58) to move upward, starting the first micro drive motor (6111) to change the extension opening (612) into a through state, then starting the second drive motor (614) to unfold the hidden storage detection frame (615), and the positioner (6151) and the infrared detector (6152) begin to detect the position information and the volume information of the hidden storage detection frame (615), thereby analyzing the infrared radiation emitted by the objects inside the cave, generating an accurate three-dimensional model of the caves at different depths of the foundation, calculating the volume of each cave (7), forming a cave capacity distribution map, and realizing the accurate positioning of the cave and the accuracy of the volume measurement of each cave; S5, starting the third drive motor (60) and the detection drive motor (604), drilling the second detection drill bit (605) into the rock formation, connecting the external grouting equipment, performing grouting operation under constant pressure, detecting the change of the inlet and outlet slurry pressure and the slurry flow rate analysis based on the first pressure sensor (592), the second pressure sensor (5941), the third pressure sensor (6052) and the flow rate sensor (6053), detecting the permeability of the slurry in different rock formations, obtaining the permeability of the slurry in the rock formation at different drilling depths to form a permeability distribution map, and then separating the grouting equipment and continuing the operation; S6, reversely starting the third drive motor (60), the detection drive motor (604) and the second type drive motor (614) to restore the second detection drill bit (605) and the hidden storage detection rack (615) to their original positions, and repeating steps S3 to S5 to perform measurement and detection at different depths; S7, repeating steps S1 to S2, moving the device forward a certain distance, and then continuing steps S3 to S6, so as to realize the detection of each row and achieve the effect of overall measurement of the substation foundation (6).

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