Monitoring system for high and steep cutting slope

Abstract

The utility model discloses a monitoring system for a high and steep cutting slope, belongs to the technical field of monitoring systems, and solves the problems that the displacement change of the slope cannot be accurately sensed or the stability and the durability are poor due to the fact that tight contact between a strain gauge and the slope cannot be guaranteed in the prior art. The fixing structure is used for fixing the strain gauges, the data collector is connected with the strain gauges, the data processing system is used for receiving data collected by the data collector and processing and analyzing the data, and the fixing structure comprises an installation base, an elastic reset structure arranged on the installation base and a supporting plate arranged on the elastic reset structure. And the limiting structure is movably arranged on the mounting base and is used for carrying out shrinkage limiting on the elastic reset structure, and the strain gauge is arranged on the supporting plate. The high and steep cutting slope displacement monitoring device is used for high and steep cutting slope displacement monitoring.

Description

Technical Field

[0001] The invention discloses a monitoring system for high-steep cutting slopes, which is used for displacement monitoring of high-steep cutting slopes and belongs to the technical field of monitoring systems. Background Art

[0002] With the rapid development of highway construction, the slope problems caused by road construction have become one of the global geological disasters on par with earthquakes and volcanoes. The deformation and damage of high slopes are major disasters that endanger the safety of highway transportation, and are also one of the most complex research topics in the field of road engineering and geotechnical engineering today. my country is a mountainous country with complex geological conditions, and high slope deformation and landslide disasters are particularly serious. Different rock and soil bodies may cause different stability problems during the roadbed construction process and the excavation of the road cut slope. Therefore, it is necessary to monitor the displacement of high and steep road cut slopes.

[0003] Existing technologies often use strain gauges in conjunction with data acquisition devices and data processing systems to monitor the displacement of high and steep cutting slopes. Specifically:

[0004] 1. Select monitoring locations: Select monitoring points at key locations on high and steep cutting slopes, such as the top, bottom or surface of the slope.

[0005] 2. Install strain gauges: Drill holes at the selected monitoring points and embed the strain gauges into the holes. The strain gauges need to be in close contact with the rock or soil inside the slope to sense their strain changes.

[0006] 3. Connect the data collector: Connect the strain gauge to the data collector, which can convert the strain changes sensed by the strain gauge into electrical signals and transmit them to the data processing system; the data collector monitors the strain changes inside the slope in real time. If the slope moves, the strain gauge will sense the corresponding strain changes and transmit the signals to the data processing system.

[0007] 4. Data processing system: Process and analyze the received signals to determine whether the slope has shifted. If the displacement exceeds the preset safety threshold, the system will issue an early warning signal to notify the management personnel to take appropriate measures.

[0008] However, the existing technology cannot ensure that the strain gauge is in close contact with the slope surface, resulting in the inability to accurately sense its displacement changes or causing problems such as poor stability and durability. Utility Model Content

[0009] The utility model aims to provide a monitoring system for high and steep cutting slopes, so as to solve the problem that the prior art cannot ensure that the strain gauge is in close contact with the slope surface, thereby causing the inability to accurately sense its displacement change or causing poor stability and durability.

[0010] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0011] A monitoring system for high and steep road cutting slopes comprises a strain gauge, a fixing structure for fixing the strain gauge, a data collector connected to the strain gauge, and a data processing system for receiving data collected by the data collector for processing and analysis. The fixing structure comprises a mounting base, an elastic reset structure arranged on the mounting base, a support plate arranged on the elastic reset structure, and a limiting structure movably arranged on the mounting base for contraction limiting the elastic reset structure. The strain gauge is arranged on the support plate.

[0012] Furthermore, the elastic reset structure includes a support rod arranged on the mounting base, a sleeve sleeved on the support rod and slidably matched with the support rod, a reset spring is arranged in the sleeve and connected to the support rod, and a support plate is arranged on the sleeve.

[0013] Further, the support rod is a T-shaped rod;

[0014] The sleeve is provided with a T-shaped cavity matched with the support rod.

[0015] Further, the support plate is provided with a T-shaped groove with one end sealed; or

[0016] The mounting base is provided with a T-shaped slot with one end sealed;

[0017] The limiting structure includes a T-shaped threaded sleeve rod that slidably matches with the T-shaped slot, and a threaded rod that matches with the T-shaped threaded sleeve rod; or

[0018] The limiting structure comprises a T-shaped threaded rod slidably matched with the T-shaped groove, and a threaded sleeve rod matched with the T-shaped threaded rod.

[0019] Further, when a T-slot is provided on the support plate, a slide groove is provided on the mounting base for horizontally limiting the threaded rod or the threaded sleeve rod and opening on the same side as the T-slot; or

[0020] When a T-shaped slot is arranged on the mounting base, a sliding slot is arranged on the support plate for horizontally limiting the threaded rod or the threaded sleeve rod and opening on the same side as the T-shaped slot.

[0021] Further, the elastic reset structure is one or more;

[0022] The limiting structure cooperates with the supporting plate and an opposite side of the mounting base.

[0023] Compared with the prior art, the advantages of the utility model are:

[0024] 1. The utility model installs a strain gauge on a support plate in a fixed structure. After drilling holes at the top, bottom or slope surface of the slope, the elastic reset structure can be compressed to reduce the distance between the mounting base and the support plate. The fixed structure with the strain gauge is placed in the hole according to the installation orientation. After the pressure is released, the elastic reset structure is reset. The mounting base and the support plate are initially pressed against the hole wall by the reset force of the elastic reset structure to achieve close contact between the strain gauge and the rock or soil inside the slope. At the same time, the elastic reset structure is further compressed and limited by the limiting structure, which can effectively ensure that the strain gauge is in close contact with the rock or soil inside the slope, so as to accurately sense the displacement change of the slope and make it stable and durable.

[0025] Second, the elastic reset structure in the utility model includes a support rod, a reset spring and a sleeve, which has a simple structure and is convenient for realizing the contraction of the fixed structure and placing it in the drill hole, and at the same time plays a role of preliminary support through reset;

[0026] 3. The utility model defines that the support rod is a T-shaped rod and the sleeve has a T-shaped cavity that matches the T-shaped rod, in order to prevent the support rod from being separated from the sleeve;

[0027] Fourth, the purpose of setting the T-slot on the support plate or the mounting base in the utility model is to facilitate the positioning structure to be pushed between the support plate and the mounting base along the T-slot after the fixing structure is placed in the drill hole, and through the limiting effect of the T-slot, the threaded rod or threaded sleeve rod in the positioning structure is rotated to lengthen the positioning structure for secondary fixing, that is, to prevent the elastic reset structure from shrinking, so that the strain gauge is in close contact with the rock or soil inside the slope;

[0028] 5. The purpose of setting the slide groove in the utility model is to facilitate the limited rotation of the threaded rod or the threaded sleeve rod. At the same time, it is also convenient to fill the slide groove to fix the threaded rod or the threaded sleeve rod according to the needs later, so as to limit the expansion and contraction of the elastic reset structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a schematic diagram of the structure in which a strain gauge is arranged on a fixed structure in the utility model;

[0031] Figure 2 It is a partial cross-sectional view of the fixing structure in the utility model;

[0032] In the figure: 1-strain gauge, 2-fixing structure, 3-mounting base, 4-elastic reset structure, 5-support plate, 6-limiting structure, 7-support rod, 8-sleeve, 9-reset spring, 10-T-slot, 11-slide groove, 12-T-threaded sleeve rod, 13-threaded rod. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0035] In the description of the present utility model, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model 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 utility model.

[0036] In addition, the terms “first”, “second”, “third”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0037] In addition, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0038] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connection", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0040] Example 1

[0041] In order to solve the problem that the existing technology cannot ensure that the strain gauge is in close contact with the slope surface, resulting in the inability to accurately sense the displacement change of the slope surface or causing poor stability and durability. Figure 1 , 2 As shown, a monitoring system for high and steep cutting slopes is provided, including a strain gauge 1, a fixed structure 2 for fixing the strain gauge 1, a data collector connected to the strain gauge 1, and a data processing system for receiving data collected by the data collector for processing and analysis. The fixed structure 2 includes a mounting base 3, an elastic reset structure 4 arranged on the mounting base 3, a support plate 5 arranged on the elastic reset structure 4, and a limiting structure 6 movably arranged on the mounting base 3 for contraction and limiting the elastic reset structure 4. The strain gauge 1 is arranged on the support plate 5. The data collector and the data processing system are existing and will not be elaborated on here.

[0042] In practice, monitoring points are selected at key positions of high and steep road cutting slopes, such as the top, bottom or slope surface of the slope, and holes are drilled at the selected monitoring points. The strain gauge is pasted on the support plate of the fixed structure, and the elastic reset structure is compressed to reduce the spacing between the mounting base and the support plate. According to the installation orientation, the fixed structure with the strain gauge is placed in the hole. After the pressure is released, the elastic reset structure is reset. Through the reset force of the elastic reset structure, the mounting base and the support plate are initially pressed against the hole wall, that is, the strain gauge needs to be in close contact with the rock or soil inside the slope to sense its strain changes. Under the compression limit of the limit structure, the strain gauge is further effectively guaranteed to be in close contact with the rock or soil inside the slope to accurately sense the displacement changes of the slope, so that its stability and durability are good. The strain gauge is connected to the data acquisition device, which can convert the strain changes sensed by the strain gauge into electrical signals and transmit them to the data processing system; the strain changes inside the slope are monitored in real time through the data acquisition device. If the slope is displaced, the strain gauge will sense the corresponding strain changes and transmit the signals to the data processing system. The data processing system processes and analyzes the received signals to determine whether the slope has shifted. If the displacement exceeds the preset safety threshold, the system will issue an early warning signal to notify the management staff to take appropriate measures.

[0043] Example 2

[0044] On the basis of Example 1, the elastic reset structure 4 includes a support rod 7 arranged on the mounting base 3, a sleeve 8 sleeved on the support rod 7 and slidably matched with the support rod 7, a reset spring 9 is arranged in the sleeve 8 and connected to the support rod 7, and the support plate 5 is arranged on the sleeve 8. The elastic reset structure includes a support rod, a reset spring and a sleeve, which has a simple structure and is easy to realize the contraction of the fixed structure into the drill hole, and plays a role of preliminary support by resetting. In practice, it contracts when pressed, and resets when pressed. The support rod 7 is a T-shaped rod; the sleeve 8 is provided with a T-shaped cavity matched with the support rod 7. The purpose of limiting the support rod to be a T-shaped rod and the sleeve to have a T-shaped cavity matched with the T-shaped rod is to prevent the support rod from being separated from the sleeve.

[0045] Example 3

[0046] On the basis of Example 2, the support plate 5 is provided with a T-shaped slot 10 with one end sealed; or the mounting base 3 is provided with a T-shaped slot with one end sealed;

[0047] The limiting structure 6 includes a T-shaped threaded rod 12 that slides with the T-shaped slot 10 and a threaded rod 13 that cooperates with the T-shaped threaded rod 12; or the limiting structure 6 includes a T-shaped threaded rod that slides with the T-shaped slot 10 and a threaded rod that cooperates with the T-shaped threaded rod.

[0048] The strain gauge is pasted on the support plate of the fixed structure, and the elastic reset structure is compressed to reduce the distance between the mounting base and the support plate. According to the installation orientation, the fixed structure with the strain gauge is placed in the hole. After the pressure is released, the elastic reset structure is reset. The mounting base and the support plate are initially pressed against the hole wall by the reset force of the elastic reset structure. The limiting structure is pushed between the support plate and the mounting base along the T-slot, and the T-slot has a limiting effect on the T-threaded sleeve rod and the T-threaded rod. The threaded rod or threaded sleeve rod in the limiting structure is rotated to lengthen the limiting structure for secondary fixation, that is, to prevent the elastic reset structure from shrinking, so that the strain gauge is in close contact with the rock or soil inside the slope.

[0049] Example 4

[0050] On the basis of Example 3, when the T-slot 10 is provided on the support plate 5, a slide groove 11 is provided on the mounting base 3 to horizontally limit the threaded rod 13 or the threaded sleeve rod and is open on the same side as the T-slot 10; or when the T-slot is provided on the mounting base 3, a slide groove 11 is provided on the support plate to horizontally limit the threaded rod 13 or the threaded sleeve rod and is open on the same side as the T-slot 10. The purpose of providing the slide groove is to facilitate the limited rotation of the threaded rod or the threaded sleeve rod, and at the same time, it is also convenient to fill the slide groove according to the needs to fix the threaded rod or the threaded sleeve rod in the future, so as to limit the expansion and contraction of the elastic reset structure.

[0051] In practice, limit grooves can be set on the left and right sides of the bottom of the slide groove 11, and a T-block can be set on the threaded rod or the threaded sleeve rod at the end matching the slide groove. A limit block with a U-shaped groove matching the T-block, the slide groove and the limit groove can be set in the slide groove. Finally, the slide groove and / or the limit block are filled to achieve the fixation of the limit structure. Of course, it can be selected according to the practical situation. In practice, it is also possible not to set the limit groove, etc., and directly fill the slide groove to fix the threaded rod or the threaded sleeve rod in the slide groove.

[0052] In summary, the elastic reset structure 4 is one or more, and the limiting structure 6 is matched with the support plate 5 and an opposite side of the mounting base 3. The specific application can be selected according to practical needs.

Claims

1. A monitoring system for high and steep cutting slopes, comprising a strain gauge (1), a fixing structure (2) for fixing the strain gauge (1), a data collector connected to the strain gauge (1), and a data processing system for receiving data collected by the data collector for processing and analysis, characterized in that: The fixed structure (2) comprises a mounting base (3), an elastic reset structure (4) arranged on the mounting base (3), a support plate (5) arranged on the elastic reset structure (4), and a limiting structure (6) movably arranged on the mounting base (3) for performing contraction limiting on the elastic reset structure (4), and the strain gauge (1) is arranged on the support plate (5).

2. A monitoring system for high and steep cutting slopes according to claim 1, characterized in that: The elastic reset structure (4) comprises a support rod (7) arranged on the mounting base (3), a sleeve (8) sleeved on the support rod (7) and slidably matched with the support rod (7), a reset spring (9) is arranged in the sleeve (8) and connected to the support rod (7), and a support plate (5) is arranged on the sleeve (8).

3. A monitoring system for high and steep cutting slopes according to claim 2, characterized in that: The support rod (7) is a T-shaped rod; The sleeve (8) is provided with a T-shaped cavity which matches with the support rod (7).

4. A monitoring system for high and steep cutting slopes according to claim 3, characterized in that: The support plate (5) is provided with a T-shaped groove (10) with one end sealed; or The mounting base (3) is provided with a T-shaped groove with one end sealed; The limiting structure (6) comprises a T-shaped threaded sleeve rod (12) slidably matched with the T-shaped groove (10), and a threaded rod (13) matched with the T-shaped threaded sleeve rod (12); or The limiting structure (6) comprises a T-shaped threaded rod slidably matched with the T-shaped groove (10) and a threaded sleeve rod matched with the T-shaped threaded rod.

5. A monitoring system for high and steep cutting slopes according to claim 4, characterized in that: When the support plate (5) is provided with a T-shaped slot (10), the mounting base (3) is provided with a sliding slot (11) for horizontally limiting the threaded rod (13) or the threaded sleeve rod and opening on the same side as the T-shaped slot (10); or When a T-slot is provided on the mounting base (3), a slide groove (11) is provided on the support plate for horizontally limiting the threaded rod (13) or the threaded sleeve rod and opening on the same side as the T-slot (10).

6. A monitoring system for high and steep cutting slopes according to claim 5, characterized in that: The elastic reset structure (4) is one or more; The limiting structure (6) cooperates with the support plate (5) and an opposite side of the mounting base (3).

Images