Underground cavern ultra-large hole diameter over-break and under-break measurement device

Abstract

The invention discloses an underground cavern ultra-large hole diameter over-break and under-break measuring device, and relates to the technical field of over-break and under-break measuring equipment.The underground cavern ultra-large hole diameter over-break and under-break measuring device comprises a frame, and a first adjusting mechanism is arranged at the top of the frame; a second adjusting mechanism is arranged at the top of the first adjusting mechanism, the second adjusting mechanism comprises a multi-way hydraulic pump machine distributed at the top of the frame, a plurality of evenly-distributed telescopic rods are slidably installed at the end of the multi-way hydraulic pump machine, and first-class shaping suites are fixedly installed at the ends of the telescopic rods; the ends of the two telescopic rods located on the lower portion are fixedly provided with second-class shaping suites, and the end of the telescopic rod located on the lower portion is fixedly provided with third-class shaping suites. A measuring mechanism is arranged on the outer side of the second adjusting mechanism. The underground cavern ultra-large hole diameter over-break and under-break measurement device has the advantages that the over-break and under-break condition of a cavern can be rapidly and visually checked, the measurement result can be rechecked, and operability is high.

Description

Technical Field

[0001] The invention relates to the technical field of over-break and under-break measuring equipment, and in particular to a device for measuring over-break and under-break of an underground cavern with a super-large hole diameter. Background Art

[0002] Tunnel over-break and under-break is a common phenomenon in tunnel construction, which can be divided into over-break and under-break. Over-break refers to the situation that the actual excavation contour exceeds the design contour, while under-break refers to the situation that the actual excavation contour fails to meet the design requirements, that is, it is smaller than the design contour. Both of these situations will have different degrees of impact on the construction. Over-break and under-break will not only directly affect the construction progress and safety quality, but also increase the construction cost. In addition, due to over-break or under-break, the final shape of the tunnel may be quite different from the design, which not only increases the difficulty of construction, but may also affect the safety and stability of the tunnel.

[0003] During the tunnel construction process, it is necessary to measure the over-break and under-break of the tunnel. The existing measurement methods are to use a total station to measure at pre-set sections and points, but the above-mentioned cavern measurement has certain defects; the conventional measurement method cannot fully cover the surface of the cavern wall, and the position of the total station needs to be constantly adjusted. It is also impossible to intuitively detect the over-break and under-break of the cavern, which makes it difficult to guarantee the subsequent transportation of the steel lining and the thickness of the concrete filling. Summary of the invention

[0004] The present invention discloses a device for measuring over- and under-break of an underground cavern with a very large diameter, aiming to solve the technical problem that the existing method for measuring over- and under-break of a cavern is to use a total station to measure at pre-set sections and points, and in actual operation, it is impossible to fully cover the surface measurement of the cavern wall, and it is impossible to intuitively detect the over- and under-break of the cavern and the actual working condition of the steel lining installation, and there is a technical problem of functional shortcomings.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A device for measuring over-excavation and under-excavation of an underground cavern with a super-large diameter, comprising a frame, wherein a first adjustment mechanism for changing the height is arranged on the top of the frame;

[0007] A second adjustment mechanism for changing the size is arranged on the top of the first adjustment mechanism, the second adjustment mechanism comprises a multi-way hydraulic pump distributed on the top of the frame, a plurality of evenly distributed telescopic rods are slidably mounted on the end of the multi-way hydraulic pump, a first type of shaping kit is fixedly mounted on the end of the telescopic rod, a second type of shaping kit is fixedly mounted on the ends of the two telescopic rods located below, a third type of shaping kit is fixedly mounted on the end of one telescopic rod located below, and the third type of shaping kit is distributed between the two second type of shaping kits;

[0008] The outer side of the second adjustment mechanism is provided with a measuring mechanism for measuring the over-excavation and under-excavation values ​​of the diameter in the cavern;

[0009] The height and size of the measuring mechanism are adjusted by the first adjusting mechanism and the second adjusting mechanism, thereby assisting the measuring mechanism to adapt to the inner diameter of the underground cavern and perform over-break and under-break measurements.

[0010] A frame structure with two adjusting mechanisms is provided to move horizontally along the interior of the cavern. The height of the measuring mechanism is changed by the first adjusting mechanism, and the diameter of the measuring mechanism is changed by the second adjusting mechanism, so as to control the size of the measuring mechanism, so that the measuring mechanism fits the inner wall diameter of the cavern. The over- and under-excavation of the cavern is measured by cooperating with the frame to pull the measuring mechanism to move horizontally. Different from the traditional method of measuring the set sections and points using a total station, this equipment can quickly and intuitively check the over- and under-excavation of the cavern and review the measurement results.

[0011] In a preferred solution, the first adjustment mechanism includes a hydraulic connecting rod rotatably mounted on the top of the frame, the number of the hydraulic connecting rods is several and they are symmetrically distributed on both sides of the top of the frame in groups of two, and the tops of the several hydraulic connecting rods are rotatably mounted on a connecting plate together, a reinforcement frame is installed in the middle of the connecting plate, and the multi-channel hydraulic pump is installed inside the reinforcement frame.

[0012] By providing a connecting plate structure driven by two groups of hydraulic connecting rods, the connecting plate is utilized to move vertically to drive the reinforcement frame and the measuring mechanism arranged inside the reinforcement frame to move synchronously, so that the measuring mechanism can be adaptively adjusted according to the height of the cavern, thereby improving the application range of the measuring mechanism.

[0013] In a preferred embodiment, the second adjustment mechanism also includes a steel coil which is commonly penetrated and sleeved inside the first type of shaping kit, the second type of shaping kit and the third type of shaping kit, the steel coils are distributed in a ring shape and overlapped end to end, and the measuring mechanism is arranged on the outside of the first type of shaping kit, the second type of shaping kit and the steel coils.

[0014] By providing a plurality of telescopic rods synchronously driven by a multi-channel hydraulic pump, several additionally provided shaping kits are driven to expand and contract in the center of the circle, and at the same time, the outer diameter of the measuring mechanism is driven to change in coordination with the synchronously expanding and contracting steel coils, thereby adapting to the shape of the cavern to be measured and further improving the scope of application and functionality of the measuring mechanism.

[0015] In a preferred embodiment, the measuring mechanism includes several leather covers which are sleeved on the outside of the steel coil, and the ends of the leather covers are respectively connected between two adjacent first-class shaping kits and between adjacent first-class shaping kits and second-class shaping kits. A first sensor is fixed to the outer surface of each leather cover. The number of the first sensors is several and they are evenly distributed along the outer surface of the leather cover. A second sensor is fixed to the outer surface of each first-class shaping kit and second-class shaping kit, and a spray gun is fixed to the side of each first-class shaping kit and second-class shaping kit.

[0016] By providing a leather case structure with a built-in first sensor, the ends of the leather case are respectively connected between two adjacent first-class shaping kits and between adjacent first-class shaping kits and second-class shaping kits. As the telescopic rod moves, the synchronously moving first-class shaping kits and second-class shaping kits will synchronously drive the steel coil to pull the leather case, thereby causing the leather case to synchronously expand and contract to adapt to the shape of the cavern. At this time, as the frame moves, the first sensor and the second sensor will start to work synchronously. When the distance between the sensor and the inner wall of the cavern is over-excavated or over-dug, the sensor will promptly transmit data to the operator's display, and at the same time control the operation of the spray gun at the corresponding position, and spray paint marks on the over-excavated and under-excavated areas to facilitate subsequent processing by the operator. Different from the traditional method of using a total station to measure the set sections and points, this equipment can quickly and intuitively check the over-excavation and under-excavation of the cavern, and review the measurement results, with strong operability.

[0017] In a preferred solution, a first motor is fixedly mounted in the middle of the connecting plate, and an output end of the first motor is horizontally connected to a side surface of the multi-channel hydraulic pump.

[0018] By providing a first motor installed in the middle of the connecting plate to drive the multi-channel hydraulic pump to rotate slightly, the spray gun is driven to move synchronously, and the positions that can be marked by the equipment are filled in to fill in the blind spots and leaks, thereby ensuring the integrity of the operation of the equipment.

[0019] In a preferred solution, a tooth groove is provided on the side of the steel coil, a gear is rotatably installed inside the three-type shaping kit, the gear and the tooth groove are meshingly connected, a second motor is fixedly installed on the outside of the three-type shaping kit, and the output end of the second motor horizontally penetrates into the interior of the three-type shaping kit and is connected to the gear.

[0020] By providing a gear structure driven by the second motor, the expansion and contraction of the steel coil are synchronously controlled by utilizing the mutual cooperation of the gear and the tooth groove, thereby ensuring the integrity of the operation of the equipment and the structural stability.

[0021] In a preferred solution, electric push rods are installed on the outer sides of the plurality of telescopic rods located at the bottom, and the output ends of the plurality of electric push rods are respectively connected to the top of the second type of shaping kit and the top of the third type of shaping kit.

[0022] By providing a plurality of electric push rods connected to the second type of shaping kit and the third type of shaping kit respectively, the shaping kit is driven to move by the extension of the electric push rods, so that the shape of the steel coil and the measuring mechanism can be adaptively changed according to the shape of the cavern, such as Fig. 9 The state shown greatly improves the applicable space and functionality of the equipment.

[0023] As can be seen from the above, the device for measuring over-excavation and under-excavation of an underground cavern with a super-large diameter provided by the present invention has the following improvements and advantages compared with the prior art:

[0024] First, a connecting plate structure driven by two sets of hydraulic connecting rods is arranged on the top of the frame, and the connecting plate is used to move vertically to drive the reinforcement frame, so that the equipment can be adjusted according to the height of the cavern, and a plurality of telescopic rods driven synchronously by a multi-pass hydraulic pump are arranged in the middle of the reinforcement frame to drive several additional shaping kits (type I shaping kit, type II shaping kit and type III shaping kit) to expand and contract in the center of the circle, and at the same time, the outer diameter of the equipment can be changed in coordination with the synchronously expanding and contracting steel coils, and a plurality of electric push rods respectively connected to the type II shaping kit and the type III shaping kit are arranged to adjust the equipment according to the height of the cavern, and the equipment can be adjusted ... The extension of the push rod drives the shaping kit to move, so that the equipment can adjust the height, diameter and shape according to the shape of the cavern to simulate the size of the steel lining that needs to be installed later. Different from the traditional method of measuring sections and points using a total station, this equipment can quickly and intuitively check the over-excavation and under-excavation of the cavern, review the measurement results, and simulate the subsequent transportation and installation of the steel lining to find problems in time, ensure the thickness of the subsequent concrete backfill construction, ensure the construction quality, and ensure the rapid transportation and installation of the subsequent steel lining. It has strong functionality and operability.

[0025] Secondly, a leather case structure with a first sensor is provided on the basis of several shaping kits, and the ends of the leather case are respectively connected between two adjacent first-class shaping kits and between adjacent first-class shaping kits and second-class shaping kits. As the telescopic rod moves, the synchronously moving first-class shaping kits and second-class shaping kits will synchronously drive the steel coil to pull the leather case, thereby causing the leather case to synchronously extend and retract to adapt to the shape of the cavern. At this time, as the frame moves, the first sensor and the second sensor will start to work synchronously. When the distance between the sensor and the inner wall of the cavern is under-excavated or over-dug, the sensor will promptly transmit data to the operator's display, and at the same time control the operation of the spray gun at the corresponding position, and spray paint marks on the over-excavated and under-excavated areas to facilitate subsequent processing by the operator, thereby further improving the functionality of the equipment and convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of an underground cavern super-large diameter over- and under-excavation measuring device proposed by the present invention.

[0027] Figure 2 This is a schematic diagram of the structure of the first adjustment mechanism of an underground cavern super-large diameter over- and under-excavation measuring device proposed by the present invention.

[0028] Figure 3 The present invention provides an underground cavern super-large hole diameter over-excavation and under-excavation measuring device Figure 2 A magnified view of the structure at center.

[0029] Figure 4 This is a schematic diagram of the outer structure of a multi-pass hydraulic pump of an underground cavern super-large diameter over- and under-break measuring device proposed by the present invention.

[0030] Figure 5 This is a cross-sectional view of the structure of the measuring mechanism of an underground cavern super-large diameter over- and under-excavation measuring device proposed by the present invention.

[0031] Figure 6 This is a schematic diagram of the structure of the telescopic rod end of a device for measuring over- and under-excavation of an underground cavern with a super-large diameter proposed by the present invention.

[0032] Figure 7 This is a cross-sectional view of the structure of three types of standardized kits for an underground cavern super-large diameter over- and under-excavation measuring device proposed by the present invention.

[0033] Figure 8 This is a schematic diagram of the structure of a multi-pass hydraulic pump machine for an underground cavern super-large diameter over- and under-break measuring device proposed by the present invention.

[0034] Fig. 9 This is a schematic diagram of a second operating state of the device for measuring over- and under-excavation of an underground cavern with a super-large diameter proposed by the present invention.

[0035] In the figure: 1. frame; 2. first adjusting mechanism; 201. hydraulic connecting rod; 202. connecting plate; 203. reinforcing frame; 204. first motor; 205. sliding plate; 206. sliding groove; 3. second adjusting mechanism; 301. multi-way hydraulic pump; 302. telescopic rod; 303. first type of molding kit; 304. second type of molding kit; 305. third type of molding kit; 306. steel coil; 307. tooth groove; 308. gear; 309. second motor; 310. electric push rod; 311. rubber wheel; 4. measuring mechanism; 401. leather case; 402. first sensor; 403. second sensor; 404. spray gun. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] The invention discloses a device for measuring over- and under-excavation of an underground cavern with a super-large diameter, which is mainly used in the scenario of measuring over- and under-excavation of an underground cavern.

[0038] Reference Figures 1 to 9 , a device for measuring over-excavation and under-excavation of an underground cavern with a large diameter, comprising a frame 1, a first adjustment mechanism 2 for changing the height is arranged on the top of the frame 1;

[0039] A second adjustment mechanism 3 for changing the size is arranged on the top of the first adjustment mechanism 2. The second adjustment mechanism 3 comprises a multi-way hydraulic pump 301 distributed on the top of the frame 1. A plurality of evenly distributed telescopic rods 302 are slidably mounted on the end of the multi-way hydraulic pump 301. A first type of shaping kit 303 is fixedly mounted on the end of the telescopic rod 302. A second type of shaping kit 304 is fixedly mounted on the ends of the two telescopic rods 302 located below. A third type of shaping kit 305 is fixedly mounted on the end of one telescopic rod 302 located below. The third type of shaping kit 305 is distributed between the two second type of shaping kits 304.

[0040] The outer side of the second adjusting mechanism 3 is provided with a measuring mechanism 4 for measuring the over-excavation and under-excavation values ​​of the diameter in the cavern;

[0041] The height and size of the measuring mechanism 4 are adjusted by the first adjusting mechanism 2 and the second adjusting mechanism 3, so as to assist the measuring mechanism 4 in adapting to the inner diameter of the underground cavern and performing over-break and under-break measurements.

[0042] In this embodiment: when in use, the measuring mechanism 4 controls the moving trajectory of the center of the circle to coincide with the axis of the tunnel through the track arranged in advance in the tunnel, and at the same time, the frame 1 is pulled along the axis of the tunnel by a 5t winch. Before the frame 1 runs, the operator needs to adjust the height of the measuring mechanism 4 and the diameter of the measuring mechanism 4 by the first adjusting mechanism 2 and the second adjusting mechanism 3 according to the size of the cave to be measured (the outer diameter of the arc formed by the measuring mechanism 4 is 200mm smaller than the tunnel diameter). At this time, the operator controls the frame 1 to move horizontally along the caverns. While moving, the measuring mechanism 4 is started to measure the inner diameter of the cavern. When the actual excavation contour of the cavern exceeds the design contour and the actual excavation contour fails to reach the design contour, the measuring mechanism 4 will feed back the data to the operator in real time and spray marks on the over-excavation and under-excavation of the cavern for subsequent repairs to complete the measurement process of the cavern.

[0043] In the above scheme, in order to enable the device to be adaptively adjusted according to the height of the cavern, the specific operations are as follows.

[0044] Reference Figures 1 to 3 , Fig. 9 In a preferred embodiment, the first adjusting mechanism 2 includes a hydraulic connecting rod 201 rotatably mounted on the top of the frame 1. The number of the hydraulic connecting rods 201 is several and they are symmetrically distributed on both sides of the top of the frame 1 in groups of two. The tops of the several hydraulic connecting rods 201 are rotatably mounted on a connecting plate 202. A reinforcement frame 203 is installed in the middle of the connecting plate 202, and a multi-channel hydraulic pump 301 is installed inside the reinforcement frame 203.

[0045] In this embodiment: before the frame 1 is operated, the operator needs to set the height of the equipment in advance according to the size of the chamber to be measured. At this time, the two sets of hydraulic connecting rods 201 are started, and the telescopic action is performed synchronously, driving the connecting plate 202 and the reinforcement frame 203 to be lifted and lowered synchronously.

[0046] In the above scheme, in order to enable the device to be adaptively adjusted according to the diameter of the cavern, the specific operations are as follows.

[0047] Reference Figure 1 , Figures 4 to 9 In a preferred embodiment, the second adjustment mechanism 3 also includes a type I shaping kit 303, a type II shaping kit 304, and a type III shaping kit 305, each of which has a steel coil 306 inserted therein. The steel coil 306 is distributed in a ring shape and is stacked end to end. The measuring mechanism 4 is arranged on the outside of the type I shaping kit 303, the type II shaping kit 304, and the steel coil 306.

[0048] In this embodiment: before the vehicle frame 1 is operated, the operator needs to adjust the diameter of the equipment in advance according to the size of the cave to be measured. At this time, the operator starts the multi-way hydraulic pump 301, and the multi-way hydraulic pump 301 pushes several telescopic rods 302 to extend outward synchronously, and at the same time, drives the first type of shaping kit 303, the second type of shaping kit 304 and the third type of shaping kit 305 to move synchronously. At the same time, the steel coil 306 located inside the first type of shaping kit 303, the second type of shaping kit 304 and the third type of shaping kit 305 is unwound synchronously, thereby changing the outer diameter of the equipment, so that the outer diameter of the arc formed by the measuring mechanism 4 is 200mm smaller than the cave diameter, matching the inner diameter of the cave; wherein, the side of the steel coil 306 is provided with a tooth groove 307, and the three A gear 308 is rotatably installed inside the first type shaping kit 305, and the gear 308 is meshed with the tooth groove 307. A second motor 309 is fixedly installed on the outside of the third type shaping kit 305. The output end of the second motor 309 horizontally penetrates into the inside of the third type shaping kit 305 and is connected to the gear 308. When the telescopic rod 302 extends outward, the second motor 309 is started synchronously to drive the gear 308 to rotate. The rotating gear 308 will push the steel coil 306 through the tooth groove 307, thereby causing the steel coil 306 to unwind and change the outer diameter of the equipment; and two groups of symmetrically distributed rubber wheels 311 are rotatably installed inside the first type shaping kit 303, the second type shaping kit 304 and the third type shaping kit 305, and the rubber wheels 311 are squeezed and contacted with the outer side of the steel coil 306.

[0049] Further, it is supplemented that: electric push rods 310 are installed on the outer sides of the plurality of telescopic rods 302 located at the bottom, and the output ends of the plurality of electric push rods 310 are respectively connected to the top of the second type of shaping kit 304 and the top of the third type of shaping kit 305; when the device is adapted to a semicircular cavern, the electric push rods 310 are started, the output shafts are extended outwards and the second type of shaping kit 304 and the third type of shaping kit 305 are expanded outwards, thereby pushing the steel coil 306, causing the steel coil 306 to expand outwards in a semicircular shape, and the specific state is as follows: Fig. 9 shown.

[0050] In the above scheme, in order to carry out over-excavation and under-excavation measurements on multiple points in the cavern at the same time, the specific operations are as follows.

[0051] Reference Figure 1 , Figures 4 to 6In a preferred embodiment, the measuring mechanism 4 includes a plurality of leather covers 401 sleeved on the outside of the steel coil 306, and the ends of the leather covers 401 are respectively connected between two adjacent first-class molding kits 303 and between adjacent first-class molding kits 303 and second-class molding kits 304. A first sensor 402 is fixed to the outer surface of each leather cover 401. The number of first sensors 402 is several and they are evenly distributed along the outer surface of the leather cover 401. A second sensor 403 is fixed to the outer surface of each first-class molding kit 303 and second-class molding kit 304, and a spray gun 404 is fixed to the side of each first-class molding kit 303 and second-class molding kit 304.

[0052] In this embodiment: when the outer diameter of the device changes and the steel coil 306 expands outward, the leather cover 401 located outside the steel coil 306 will expand synchronously, and the spacing between the first sensors 402 located outside the leather cover 401 will expand synchronously. At this time, the first sensor 402 and the second sensor 403 will be started synchronously, and the over-excavation and under-excavation of the inner wall of the cavern will be measured along with the movement of the vehicle frame 1. When the first sensor 402 and the second sensor 403 detect the existence of over-excavation and under-excavation points inside the cavern, the first sensor 402 and the second sensor 403 will start synchronously. 3 will directly feed back the detected data to the operator, and at the same time control the operation of the adjacent spray gun 404, which will spray paint on the over-under and over-excavation points, thereby completing the marking of the points; wherein, a first motor 204 is fixedly installed in the middle of the connecting plate 202, and the output end of the first motor 204 is horizontally connected to the side of the multi-channel hydraulic pump 301. When the spray gun 404 is working, the first motor 204 will run synchronously, and the multi-channel hydraulic pump 301 will rotate synchronously by rotating, thereby indirectly driving the spray gun 404 to rotate, ensuring the spray range of the spray gun 404.

[0053] Among them, the first sensor 402 and the second sensor 403 are infrared distance sensors with model "GP2Y0A21YK0F". The initial emission points of the first sensor 402 and the second sensor 403 are located on the same circular line. Whether over-excavation or under-excavation occurs can be determined by detecting the distance to the inner wall of the cavern. When there is a large gap with the set value, it can be marked by manually controlling the spray gun 404, or automatically marked by the controller.

[0054] Furthermore, it is supplemented that: a number of sliding plates 205 are evenly distributed inside the reinforcement frame 203, and the sliding plates 205 are fixedly installed on the outside of the multi-channel hydraulic pump 301, and the inner wall of the reinforcement frame 203 is symmetrically provided with sliding grooves 206, and a number of sliding plates 205 are slidably installed inside the sliding grooves 206 to ensure the stability of the multi-channel hydraulic pump 301 during rotation.

[0055] Working principle: When in use, the measuring mechanism 4 controls the moving trajectory of the center of the circle to coincide with the axis of the tunnel through the track arranged in advance in the tunnel, and at the same time, the 5t winch is arranged to pull the frame 1 to move along the axis of the tunnel. Before the frame 1 is operated, the operator needs to adjust the height and diameter of the equipment in advance according to the size of the tunnel to be measured (the outer diameter of the arc formed by the measuring mechanism 4 is 200mm smaller than the tunnel diameter). At this time, the two sets of hydraulic connecting rods 201 are started, and the telescopic action occurs synchronously, driving the connecting plate 202 and the reinforcing frame 203 to start. The multi-pass hydraulic pump 301 is started synchronously to push a plurality of telescopic rods 302 to extend outward synchronously, and at the same time, the first type of shaping kit 303, the second type of shaping kit 304 and the third type of shaping kit 305 are driven to move synchronously. At the same time, the second motor 309 is started synchronously to drive the gear 308 to rotate. The rotating gear 308 pushes the steel coil 306 through the tooth groove 307, thereby causing the steel coil 306 to unwind and change the outer diameter of the equipment, thereby changing the height of the equipment. and size, so that the device and the cavern are matched, and the size of the steel lining to be installed later is simulated by the deformation of the device, so as to facilitate the subsequent transportation, installation and simulation of the steel lining; when the outer diameter of the device changes and the steel coil 306 expands outward, the leather cover 401 located on the outside of the steel coil 306 will expand synchronously, and the spacing between several first sensors 402 located on the outside of the leather cover 401 will expand synchronously. At this time, the first sensor 402 and the second sensor 403 will be started synchronously, and the over-excavation and under-excavation of the inner wall of the cavern will be measured along with the movement of the frame 1. When the first sensor 402 and the second sensor 403 detect that there are over-excavation and over-excavation points inside the cavern, the first sensor 402 and the second sensor 403 will directly feed back the detected data to the operator, and at the same time control the adjacent spray gun 404 to work, and the spray gun 404 will spray paint on the over-excavation and over-excavation points, thereby completing the marking of the points, so as to repair or polish them, and ensure the subsequent concrete filling thickness between the steel lining and the cavern.

[0056] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for measuring over-excavation and under-excavation of an underground cavern with a large diameter, comprising a frame (1), characterized in that: The top of the frame (1) is provided with a first adjustment mechanism (2) for changing the height; A second adjustment mechanism (3) for changing the size is arranged on the top of the first adjustment mechanism (2), the second adjustment mechanism (3) comprises a multi-way hydraulic pump (301) distributed on the top of the frame (1), a plurality of evenly distributed telescopic rods (302) are slidably mounted on the end of the multi-way hydraulic pump (301), a first type of shaping kit (303) is fixedly mounted on the end of the telescopic rod (302), a second type of shaping kit (304) is fixedly mounted on the ends of the two telescopic rods (302) located below, a third type of shaping kit (305) is fixedly mounted on the end of one telescopic rod (302) located below, and the third type of shaping kit (305) is distributed between the two second type of shaping kits (304); A measuring mechanism (4) for measuring the over-excavation and under-excavation values ​​of the inner diameter of the cavern is arranged outside the second adjusting mechanism (3); The height and size of the measuring mechanism (4) are adjusted by the first adjusting mechanism (2) and the second adjusting mechanism (3), thereby assisting the measuring mechanism (4) to adapt to the inner diameter of the underground cavern and perform overbreak and underbreak measurements.

2. The device for measuring over-excavation and under-excavation of an underground cavern with a large diameter according to claim 1, characterized in that: The first adjustment mechanism (2) comprises a hydraulic connecting rod (201) rotatably mounted on the top of the frame (1), the number of the hydraulic connecting rods (201) being multiple and symmetrically distributed on both sides of the top of the frame (1) in groups of two, and the tops of the multiple hydraulic connecting rods (201) are rotatably mounted on a connecting plate (202), a reinforcing frame (203) is mounted in the middle of the connecting plate (202), and the multi-channel hydraulic pump (301) is mounted inside the reinforcing frame (203).

3. The device for measuring over-excavation and under-excavation of an underground cavern with a large diameter according to claim 1, characterized in that: The second adjustment mechanism (3) also includes a steel coil (306) which is inserted through the interior of the first type of shaping kit (303), the second type of shaping kit (304) and the third type of shaping kit (305), and the steel coil (306) is distributed in a ring shape and overlapped end to end. The measuring mechanism (4) is arranged on the outside of the first type of shaping kit (303), the second type of shaping kit (304) and the steel coil (306).

4. The device for measuring over-excavation and under-excavation of an underground cavern with a super-large diameter according to claim 3, characterized in that: The measuring mechanism (4) comprises a plurality of leather covers (401) sleeved on the outside of the steel coil (306), the ends of the leather covers (401) being respectively connected between two adjacent first-type shaping kits (303) and between adjacent first-type shaping kits (303) and second-type shaping kits (304), a first sensor (402) being fixed on the outer surface of each leather cover (401), a plurality of first sensors (402) being uniformly distributed along the outer surface of the leather cover (401), a second sensor (403) being fixed on the outer surface of each first-type shaping kit (303) and second-type shaping kit (304), and a spray gun (404) being fixed on the side of each first-type shaping kit (303) and second-type shaping kit (304).

5. The device for measuring over-excavation and under-excavation of an underground cavern with a large diameter according to claim 2, characterized in that: A first motor (204) is fixedly mounted in the middle of the connection plate (202), and an output end of the first motor (204) is horizontally connected to a side surface of the multi-channel hydraulic pump (301).

6. The device for measuring over-excavation and under-excavation of an underground cavern with a super-large diameter according to claim 3, characterized in that: A tooth groove (307) is provided on the side of the steel coil (306), a gear (308) is rotatably installed inside the three-type shaping kit (305), the gear (308) and the tooth groove (307) are meshingly connected, and a second motor (309) is fixedly installed on the outside of the three-type shaping kit (305), and the output end of the second motor (309) horizontally penetrates into the interior of the three-type shaping kit (305) and is connected to the gear (308).

7. The device for measuring over-excavation and under-excavation of an underground cavern with a super-large diameter according to claim 3, characterized in that: Electric push rods (310) are installed on the outer sides of the plurality of telescopic rods (302) located at the bottom, and the output ends of the plurality of electric push rods (310) are respectively connected to the top of the second type of shaping kit (304) and the top of the third type of shaping kit (305).

8. The device for measuring over-excavation and under-excavation of an underground cavern with a super-large diameter according to claim 3, characterized in that: Two groups of symmetrically distributed rubber wheels (311) are rotatably mounted inside the first type shaping kit (303), the second type shaping kit (304) and the third type shaping kit (305), and the rubber wheels (311) are pressed and contacted with the outer side of the steel coil (306).

9. The device for measuring over-excavation and under-excavation of an underground cavern with a super-large diameter according to claim 2, characterized in that: A plurality of sliding plates (205) are evenly distributed inside the reinforcing frame (203), and the sliding plates (205) are fixedly installed on the outside of the multi-channel hydraulic pump (301).

10. The device for measuring over-excavation and under-excavation of an underground cavern with a super-large diameter according to claim 9, characterized in that: The inner wall of the reinforcing frame (203) is symmetrically provided with sliding grooves (206), and a plurality of sliding plates (205) are slidably installed inside the sliding grooves (206).

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