Tunnel settlement monitoring device

Abstract

The utility model discloses a tunnel settlement monitoring device in the technical field of tunnel settlement monitoring, which comprises an arc-shaped arch plate arranged at the lower end of a tunnel arch-shaped surface, two ends of the arc-shaped arch plate are connected with a monitoring mechanism for monitoring after tunnel settlement, the monitoring mechanism comprises stand columns arranged on two sides, and transverse sliding assemblies are arranged at the upper ends and the lower ends of the stand columns. An infrared distance measuring probe is installed on the transverse sliding assembly. The transverse sliding assembly comprises connecting shafts arranged at the two ends of the arc-shaped arch plate, and upper sliding bases are arranged on the connecting shafts. Through connection arrangement of the monitoring mechanisms at the two ends of the arc-shaped arch plate, the arc-shaped arch plate is attached to the top face of the tunnel, when the top face of the tunnel sinks, the arc-shaped arch plate is stressed to apply pressure to the transverse sliding assemblies on the two sides, and the arc-shaped arch plate integrally pushes the upper sliding bases, the stand columns and the lower sliding bases on the two sides to the two sides; the infrared distance measuring probe feeds back the increased data of the distance monitored between the two sides, tunnel settlement is visually observed, the overall structure is simple, and the use convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel settlement monitoring, in particular to a tunnel settlement monitoring device. Background Art

[0002] Tunnels are engineering structures buried in the ground, and are a form of human use of underground space. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, mining tunnels, and military tunnels.

[0003] The structure of the tunnel consists of two parts: the main building and the ancillary equipment. The main building consists of the tunnel body and the tunnel portal, and the ancillary equipment includes the car shelter, fire-fighting facilities, emergency communications and drainage facilities. Long tunnels also have special ventilation and lighting equipment.

[0004] Tunnels are commonly used building structures in construction projects. Tunnels and urban subways are relatively concealed, and the geological conditions during the construction process are complex. Potential accident hazards need to be monitored at all times. Sudden accidents in tunnels and subways mainly manifest as arch collapse and water and mud bursts from the side walls.

[0005] There are many ways to control the settlement of tunnel vaults. For example, a tunnel settlement monitoring device with announcement number CN220084001U is used. Multiple bases are fixed on the tunnel. After the bases are fixed, the movable plate is adjusted in angle through the reset assembly. After the movable plate is tilted, it is easy to contact the cone cover with the tunnel. When the tunnel settlement causes the cone cover to separate from the tunnel, the movable plate quickly returns to its position under the elastic force of the torsion spring, and the arc block on the rotating sleeve squeezes the pressure sensor. After squeezing, the data is transmitted to the external monitoring device for display and alarm. However, the above device has a complex overall structure and a cumbersome use process, which causes inconvenience to use.

[0006] Most of the current tunnel settlement monitoring devices use multiple sensors to be installed at different points on the same section inside the tunnel to monitor multiple arch segments inside the tunnel. The tunnel can only be effectively monitored if settlement occurs at the monitoring point. When settlement occurs on the same arch surface where no monitoring device is installed, effective monitoring cannot be performed. If precise monitoring is required, more monitoring devices can only be installed. This results in a need for enough monitoring points to monitor a section of the tunnel. Settlement monitoring of multiple sections is required in a tunnel, which results in tunnel settlement monitoring at multiple points on each section. This results in a huge number of detection points and low detection efficiency. In addition, as long as the same section is not completely covered with detection devices, there will still be points that are missing from monitoring, resulting in incomplete monitoring data and insufficient accuracy.

[0007] Based on this, the utility model designs a tunnel settlement monitoring device to solve the above problems. Utility Model Content

[0008] The purpose of the utility model is to provide a tunnel settlement monitoring device, which can fit and match a complete top cross-section of the tunnel through a complete arc-shaped arch plate, so as to monitor the complete cross-section of the tunnel in real time. When settlement occurs at any point of the tunnel cross-section, it can be reflected as deformation on the arc-shaped arch plate, and the deformation of the arc-shaped arch plate can be directly reflected as a change in the distance between the two ends, and feedback is given through the change in the distance between the two ends, so that the entire tunnel cross-section can be completely monitored through a set of corresponding infrared ranging probes, without missing any missing points, the structure is simple, does not require a large number of monitoring points, and does not require a large number of sensors, is easy to install, and monitors accurately.

[0009] The utility model is implemented as follows: a tunnel settlement monitoring device, comprising:

[0010] Curved arch plates, columns, monitoring slides and bottom beams;

[0011] The arc-shaped arch plate is an arc-shaped structure with a top convex upward, and the top of the arc-shaped arch plate is in close contact with the top of the inner wall of the tunnel;

[0012] The monitoring slider is a flat block structure, and a connecting shaft is arranged at the end of the monitoring slider, and the connecting shaft is arranged horizontally along the front-back direction;

[0013] A monitoring slider is provided at each of the left and right ends of the arc-shaped arch plate, and the two monitoring sliders are rotatably connected to the arc-shaped arch plate through a connecting shaft;

[0014] Infrared ranging probes are provided at the inner ends of the bottoms of the two monitoring slide blocks;

[0015] The bottom beam is a horizontally arranged long strip structure, and a slide groove is respectively arranged at the left and right ends of the top of the bottom beam;

[0016] The upright posts are straight rods, and a upright post is vertically arranged in each of the slide slots; the lower end of the upright post is horizontally slidably arranged in the slide slot along the left-right direction;

[0017] The top of each column is docked with a monitoring slider, and each monitoring slider can be lifted and locked on the upper end of a column.

[0018] Furthermore, a guide sleeve is sleeved on the outer end of each monitoring slider, the inner end of the guide sleeve is open, the monitoring slider is horizontally slidable inside the guide sleeve, and the guide sleeve is anchored on the inner wall of the tunnel;

[0019] The monitoring sliding block and the guide sliding sleeve are clearance-matched.

[0020] Furthermore, the upper end of the column is a threaded rod, the upper end of the column is locked with a limit ring through a thread, a limit ring is clamped on the upper and lower sides of the monitoring slider, and the monitoring slider can be locked on the column through the limit ring to adjust the height;

[0021] A lower sliding seat is fixedly arranged at the lower end of the column. The lower sliding seat is a block structure and is horizontally slidably arranged in the sliding groove.

[0022] Furthermore, a plurality of top plates are detachably installed on the top of the arc-shaped arch plate, the top plates are sheet-shaped structures, and the lower end of the top plates is an adjusting screw, and the top plates can be lifted and locked on the top of the arc-shaped arch plate by adjusting the screw;

[0023] The top plate is stably pressed against the top of the inner wall of the tunnel, and the arc-shaped arch plate is a stainless steel plate.

[0024] Furthermore, the two infrared ranging probes are at the same height, and the inspection directions of the two infrared ranging probes are arranged oppositely, there is no obstruction between the infrared ranging probes on both sides, and each of the infrared ranging probes is connected to an external alarm device.

[0025] The beneficial effects of the utility model are as follows: 1. The utility model fits the arc-shaped arch plate with the top surface of the tunnel. When the top surface of the tunnel settles, the arc-shaped arch plate itself will be deformed and pressed downward by force, and the deformation force will be transmitted to the monitoring sliders at the left and right ends of the arc-shaped arch plate. The monitoring sliders are forced to slide horizontally to both sides, so that the infrared ranging probe can feedback the change of the spacing data monitored between the two sides, and can intuitively observe the settlement of the tunnel; the device responds to the deformation of the arc-shaped arch plate through the monitoring sliders arranged at both ends of the arc-shaped arch plate, and can fully monitor the tunnel section, instead of only installing sensors at a specific point of the section for inspection, so that the monitoring is more comprehensive and complete, and the accuracy is higher;

[0026] 2. This device does not need to install multiple sensors, which not only avoids the tedious process of installing sensors, but also requires very high precision when installing sensors to ensure accurate detection data. This device does not require the tedious installation steps of so many sensors, and there are no monitoring leaks. The structure is supported only by columns and limited by the bottom beam. The overall structure is simple, which improves the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

[0028] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0029] Figure 2 This is a schematic diagram of the overall structure of the utility model from another angle;

[0030] Figure 3 This is a schematic diagram of the front structure of the utility model;

[0031] Figure 4 It is a schematic diagram of the structure of the utility model in the split state.

[0032] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0033] 1-arc arch plate, 11-top plate, 12-adjusting screw, 2-column, 21-limiting ring, 22-lower slide seat, 3-monitoring slider, 31-infrared ranging probe, 32-connecting shaft, 33-guide sleeve, 4-bottom beam, 41-slide groove. DETAILED DESCRIPTION

[0034] See also Figures 1 to 4 As shown, the utility model provides a tunnel settlement monitoring device. In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings in the specification and specific implementation methods.

[0035] In a specific embodiment of the technical solution of the utility model:

[0036] It includes an arc-shaped arch plate 1, a column 2, a monitoring slider 3 and a bottom beam 4;

[0037] The arc-shaped arch plate 1 is an arc-shaped structure with a top convex upward, and the top of the arc-shaped arch plate 1 is in contact with the top of the inner wall of the tunnel; a plurality of top plates 11 are detachably installed on the top of the arc-shaped arch plate 1, and the top plates 11 are sheet-shaped structures, and the lower end of the top plates 11 is an adjusting screw 12, and the top plates 11 can be lifted and locked on the top of the arc-shaped arch plate 1 by adjusting the screw 12;

[0038] The top plate 11 is stably against the top of the inner wall of the tunnel, and the arc-shaped arch plate 1 is a stainless steel plate. The top plate 11 is used to fill the gap between the arc-shaped arch plate 1 and the top of the tunnel. When there is no gap, it is not needed. It is installed and used at the point with a gap. Therefore, the adjusting screw 12 of the device can penetrate the arc-shaped arch plate 1, so that the top plate 11 is lifted up on the gap, and supported by the nut at the lower end of the adjusting screw 12. The adjusting screw 12 is at the bottom of the arc-shaped arch plate 1, and the adjusting screw is positioned and locked by the nut. The adjusting screw 12 and the arc-shaped arch plate 1 themselves are also threadedly locked, thereby ensuring that the arc-shaped arch plate 1 can effectively transmit force with the top of the inner wall of the tunnel.

[0039] The monitoring slider 3 is a flat block structure, and a connecting shaft 32 is provided at the end of the monitoring slider 3, and the connecting shaft 32 is horizontally arranged along the front-back direction;

[0040] A monitoring slider 3 is provided at each of the left and right ends of the arc-shaped arch plate 1, and the two monitoring sliders 3 are rotatably connected to the arc-shaped arch plate 1 through a connecting shaft 32;

[0041] The inner ends of the bottoms of the two monitoring sliders 3 are both provided with infrared ranging probes 31;

[0042] The bottom beam 4 is a horizontally arranged long strip structure, and a slide groove 41 is respectively arranged at the left and right ends of the top of the bottom beam 4;

[0043] The column 2 is a straight rod, and a column 2 is vertically arranged in each slide groove 41; the lower end of the column 2 is horizontally slid in the slide groove 41 along the left and right directions; when the column 2 is installed, it is necessary to reserve left and right sliding space to ensure that the column 2 does not conflict with the left and right walls of the tunnel.

[0044] The top of each column 2 is docked with a monitoring slider 3, and each monitoring slider 3 can be lifted and locked on the upper end of a column 2. A guide sleeve 33 is sleeved on the outer end of each monitoring slider 3, and the inner end of the guide sleeve 33 is open. The monitoring slider 3 is horizontally slid inside the guide sleeve 33, and the monitoring slider 3 and the guide sleeve 33 are clearance-matched.

[0045] The guide sleeve 33 is anchored on the inner wall of the tunnel; thus, the sliding direction of the monitoring slider 3 is limited by the guide sleeve 33, ensuring that the detection slider 3 slides in the horizontal direction, and also ensuring that the infrared ranging probe 31 at the bottom can always maintain the height correspondence for effective detection. The two infrared ranging probes 31 are at the same height position, and the inspection directions of the two infrared ranging probes 31 are relatively set, there is no barrier between the infrared ranging probes 31 on both sides, and each infrared ranging probe 31 is connected to an external alarm device; the infrared ranging probes 31 of the two monitoring sliders 3 are the transmitting end and the receiving end respectively, and the infrared ranging probes 31 on both sides are relatively matched for monitoring.

[0046] The upper end of the column 2 is a threaded rod, and a limit ring 21 is locked on the upper end of the column 2 through a thread. A limit ring 21 is clamped on the upper and lower sides of the monitoring slider 3. The monitoring slider 3 can be locked on the column 2 through the limit ring 21 to adjust the height;

[0047] A lower slide seat 22 is fixedly provided at the lower end of the column 2. The lower slide seat 22 is a block-shaped structure. The lower slide seat 22 is horizontally slidable in the slide groove 41. A cover plate is installed on the top of the slide groove 41 to limit the lower slide seat 22 from escaping from the slide groove 41. A waist-shaped hole can be opened on the cover plate to reserve a sliding space in the left and right directions of the column 2 to ensure that the cover plate and the slide groove 41 will not block the sliding space of the column 2, and can prevent the lower slide seat 22 from escaping from the slide groove 41, and play a positioning and limiting role on the lower slide seat 22, so that the lower slide seat 22 can only slide horizontally left and right in the slide groove 41, but cannot escaping. The slide groove 41 is closed on the left and right, front and back, and is just a long strip-shaped groove opened along the left and right directions, which is only for the sliding of the lower slide seat 22.

[0048] Compared with the existing technology, the structure of the embodiment of the utility model has the following differences:

[0049] 1. Existing monitoring devices all monitor the same tunnel section, but multiple sensors need to be installed on the same section to monitor at multiple points, which will lead to missing points during detection, resulting in the settlement of the same section not being detected unless it occurs at the detection point, resulting in inaccurate detection data and missing data. This device uses an arc-shaped arch plate 1 to fit and cover the entire arched surface of the top of the tunnel, monitors the entire top of the tunnel, and has no missing points. Only one infrared ranging probe 31 can be used for complete detection, and the detection data is accurate and the data is fed back in time. In addition, the settlement amount is effectively fed back through the distance change at both ends of the arc-shaped arch plate 1. Any monitoring device with omissions can only detect the probability of settlement, rather than complete monitoring. , therefore, the existing multi-point detection device can only monitor the settlement of the tunnel top of the same cross-section with a certain probability, and the detection effect is not good; 2. The installation of the detection sensor needs to be very accurate, so the installation of the infrared ranging probe 31 has relatively high requirements and is difficult to install. In order to improve the detection accuracy, some tunnel settlement detection devices install a large number of sensors, which makes the installation difficult. Although the detection accuracy is improved, it is only for the points where the sensors are installed. Therefore, the overall monitoring accuracy is not improved, and the installation difficulty is increased. The device has a simple structure during installation. The installation of the column 2, the bottom beam 4 and the arc arch plate 1 only requires complete assembly by docking. Only the infrared sensor 31 needs to be accurately matched for ranging, and the installation is simple.

[0050] When the utility model is in use, the settlement of the tunnel is converted into the deformation of the arc-shaped arch plate 1, so that the arc-shaped arch plate 1 is pressed downward when it is stressed, causing its two ends to be pushed outward, so that the monitoring sliders 3 at the two ends of the arc-shaped arch plate 1 are displaced, and the column 2 will also slide on the bottom beam 4, and move with the monitoring slider 3, and at the same time, the infrared ranging probes 31 on both sides monitor the change of the spacing, and feedback is given to the external data receiving device, and the alarm device is controlled to start the alarm through the infrared ranging probe 31 at the same time, so as to effectively monitor the settlement of the tunnel in a timely and effective manner, and as long as the device is installed, all points on the top of the entire tunnel section can be completely monitored, the monitoring effect is good, and there is no omission in the monitoring, and the change of the settlement amount is directly reflected as the deformation amount of the arc-shaped arch plate 1, which is also reflected on the monitoring sliders 3 at both ends, so that it can be read through the infrared ranging probe 31, the detection data is accurate, and the deformation of the arc-shaped arch plate 1 caused by the tunnel settlement can be intuitively observed, as long as the arc-shaped arch plate 1 is no longer in the arch shape when drilling, that is, deformation has occurred, which is an intuitive reflection of the tunnel settlement.

[0051] For ease of description, the left and right sides of the device refer to the left and right sides of the tunnel, and the front and back refer to the front and back opening directions of the tunnel, that is, Figure 3 The left and right sides shown are left and right directions, while the inner end refers to the center of the tunnel and the outer end refers to the left and right outer sides of the tunnel.

[0052] In addition, in the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply 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.

[0053] Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A tunnel settlement monitoring device, characterized in that: include: Arc-shaped arch plate (1), column (2), monitoring slide block (3) and bottom beam (4); The arc-shaped arch plate (1) is an arc-shaped structure with a top convex upward, and the top of the arc-shaped arch plate (1) is in close contact with the top of the inner wall of the tunnel; The monitoring slider (3) is a flat block structure, and a connecting shaft (32) is arranged at the end of the monitoring slider (3), and the connecting shaft (32) is arranged horizontally along the front-back direction; A monitoring slider (3) is provided at each of the left and right ends of the arc-shaped arch plate (1), and the two monitoring sliders (3) are rotatably connected to the arc-shaped arch plate (1) via a connecting shaft (32); Infrared distance measuring probes (31) are provided at the inner ends of the bottoms of the two monitoring slide blocks (3); The bottom beam (4) is a horizontally arranged long strip structure, and a slide groove (41) is respectively arranged at the left and right ends of the top of the bottom beam (4); The upright post (2) is a straight rod, and a upright post (2) is vertically arranged in each of the slide grooves (41); the lower end of the upright post (2) is horizontally slidably arranged in the slide groove (41) along the left-right direction; The top of each column (2) is butt-jointed with a monitoring slider (3), and each monitoring slider (3) can be lifted and locked on the upper end of a column (2).

2. A tunnel settlement monitoring device according to claim 1, characterized in that: A guide sleeve (33) is sleeved on the outer end of each monitoring slider (3), the inner end of the guide sleeve (33) is open, the monitoring slider (3) is horizontally slidable inside the guide sleeve (33), and the guide sleeve (33) is anchored on the inner wall of the tunnel; The monitoring slide block (3) and the guide sleeve (33) are clearance-fitted.

3. A tunnel settlement monitoring device according to claim 1, characterized in that: The upper end of the column (2) is a threaded rod, and a limit ring (21) is locked on the upper end of the column (2) through a thread. A limit ring (21) is clamped on the upper and lower sides of the monitoring slider (3), and the monitoring slider (3) is locked on the column (2) in an adjustable height through the limit ring (21); A lower slide seat (22) is fixedly provided at the lower end of the upright column (2). The lower slide seat (22) is a block-shaped structure. The lower slide seat (22) is horizontally slidable in the slide groove (41).

4. A tunnel settlement monitoring device according to claim 1, characterized in that: A plurality of top plates (11) are detachably mounted on the top of the arc-shaped arch plate (1); the top plates (11) are sheet-shaped structures; an adjusting screw (12) is disposed at the lower end of the top plates (11); and the top plates (11) can be lifted and lowered and locked on the top of the arc-shaped arch plate (1) by means of the adjusting screw (12); The top plate (11) is stably pressed against the top of the inner wall of the tunnel, and the arc-shaped arch plate (1) is a stainless steel plate.

5. A tunnel settlement monitoring device according to claim 1, characterized in that: The two infrared distance measuring probes (31) are located at the same height, and the inspection directions of the two infrared distance measuring probes (31) are arranged opposite to each other, there is no barrier between the infrared distance measuring probes (31) on both sides, and each of the infrared distance measuring probes (31) is connected to an external alarm device.

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