Landslide experiment system

Abstract

This invention discloses a landslide testing system, comprising: a cylinder with a cavity formed therein suitable for accommodating a landslide body, on which a first landslide surface is formed; a positioning device disposed within the cavity, the positioning device being movable along a second landslide surface and used to determine the difference zone between the first and second landslide surfaces; and a compaction device movably disposed within the cavity and compacting the landslide body according to the difference zone. The landslide testing system according to this invention determines the difference zone through the positioning device, and the compaction device compacts the landslide body according to the difference zone, thus achieving automated landslide filling and solving the problem of low automation in landslide simulation test bench model construction.

Description

Technical Field

[0001] This invention relates to the field of geological disaster modeling and experimental technology, and in particular to a landslide experimental system. Background Technology

[0002] my country is a country prone to geological disasters, with diverse types and wide distribution, among which landslides cause particularly significant damage. For many years, researchers and engineers in related fields have devoted considerable effort to studying the mechanisms of landslide formation and mitigation measures, achieving fruitful results. Landslide simulation experiments have gained widespread popularity due to their advantages, including reliable results, high research value, lower cost compared to in-situ experiments, ease of operation, and diverse monitoring scope. Furthermore, the data obtained is easily analyzed and integrated for application in engineering practice. Existing landslide simulation platforms typically involve artificially constructing a landslide platform and filling it with soil to form a landslide mass. The soil moisture content is often adjusted by regulating the soil-to-water ratio. During the layered filling process, the loose soil needs to be manually compacted using tools such as rubber mallets and wooden boards.

[0003] In related technologies, the landslide simulation test bench has a low degree of automation in model building, uneven internal physical properties of the landslide body, inaccurate variable control, low precision in mechanical parameter control, and poor controllability and uniformity of internal parameters of the landslide body. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, one object of this invention is to provide a landslide testing system. The landslide testing system according to this invention uses a positioning device to determine the difference zone, and a compaction device compacts the landslide body according to the difference zone, realizing automated filling of the landslide body and solving the problem of low automation in the model construction of landslide simulation test benches.

[0005] The landslide testing system according to the present invention includes: a cylinder having a cavity formed therein suitable for accommodating a landslide body, wherein a first landslide surface is formed on the landslide body; a positioning device disposed within the cavity, the positioning device being movable along a second landslide surface and used to determine a difference zone between the first landslide surface and the second landslide surface; and a compaction device movably disposed within the cavity and compacting the landslide body according to the difference zone.

[0006] This invention moves a positioning device along the second landslide surface to identify the difference zone and feed back the internal parameters of the landslide body. Then, a compaction device compacts the difference zone between the first and second landslide surfaces, allowing the landslide body to be formed into the preset shape for the landslide experiment. This reduces manual operation in the landslide experiment, improves the automation of landslide body construction, and increases the accuracy and controllability of the internal parameters of the landslide body, making the landslide experiment results more reliable.

[0007] According to one embodiment of the present invention, the positioning device includes: a first positioning part and a second positioning part, both of which are movably disposed in the cavity; wherein the first positioning part and the second positioning part are facing each other in a first direction and move in a second direction respectively, and the first direction and the second direction define at least a portion of the second landslide surface.

[0008] According to one embodiment of the present invention, a transmitter is provided on the first positioning part, and a receiver is provided on the second positioning part. The transmitter and the receiver are in a first direction. The receiver is adapted to receive a positioning signal emitted by the transmitter. When the receiver cannot receive the positioning signal, it determines the difference area.

[0009] According to one embodiment of the present invention, the transmitting end is adapted to emit light to the receiving end, the light being configured as the positioning signal.

[0010] According to one embodiment of the present invention, the positioning device further includes: a sensor disposed within the landslide body, the sensor detecting parameters at a preset location within the landslide body and determining the difference zone based on the parameters and the preset parameters.

[0011] According to one embodiment of the present invention, the sensor includes: a stress sensor, wherein the stress sensors are configured as a plurality and arranged at intervals within the landslide body.

[0012] According to one embodiment of the present invention, the sensor further includes: a calibration sensor, at least a portion of which extends to the outside of the landslide body and is adapted to detect atmospheric pressure within the cavity.

[0013] According to one embodiment of the present invention, the compaction device includes: a first drive rod, one end of which is movably disposed in the cylinder body, and the other end of which is retractably disposed in the cavity; and a roller disposed at the other end of the first drive rod and adapted to roll on the first landslide surface.

[0014] According to one embodiment of the present invention, the compaction device further includes: a second drive rod, one end of which is movably disposed in the cylinder body, and the other end of which is retractably disposed in the cavity along the height direction; and a pressure plate disposed at the other end of the second drive rod, wherein a pressure surface extending in the horizontal direction is formed on the pressure plate.

[0015] According to one embodiment of the present invention, the landslide experimental system further includes: a spraying device having a plurality of spray nozzles, the plurality of spray nozzles being directly opposite the first landslide surface in the height direction, and each of the spray nozzles being selectively openable to spray onto the first landslide surface.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a partial structural diagram of a landslide experimental system according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of a bracket according to an embodiment of the present invention;

[0020] Figure 3 This is a top view of the spray nozzle structure according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of landslide filling according to an embodiment of the present invention;

[0022] Figure 5 This is another schematic diagram of landslide filling according to an embodiment of the present invention.

[0023] Figure label:

[0024] Landslide Experimental System 1;

[0025] Cylinder block 11, landslide body 16, bedrock 161

[0026] Positioning bar 121, positioning ball 122, stress sensor 123, calibration sensor 124.

[0027] First drive rod 131, roller 132, second drive rod 133, pressure plate 134.

[0028] Spray device 14, large-diameter spray nozzle 141, small-diameter spray nozzle 142,

[0029] Support 15, top support 151, left support 152, right support 153. Detailed Implementation

[0030] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] my country is a country prone to geological disasters, with diverse types and wide distribution, among which landslides cause particularly significant damage. For many years, researchers and engineers in related fields have devoted considerable effort to studying the mechanisms of landslide formation and mitigation measures, achieving fruitful results. Landslide simulation experiments have gained widespread popularity due to their advantages, including reliable results, high research value, lower cost compared to in-situ experiments, ease of operation, and diverse monitoring scope. Furthermore, the data obtained is easily analyzed and integrated for application in engineering practice. Existing landslide simulation platforms typically involve artificially constructing a landslide platform and filling it with soil to form a landslide mass. The soil moisture content is often adjusted by regulating the soil-to-water ratio. During the layered filling process, the loose soil needs to be manually compacted using tools such as rubber mallets and wooden boards.

[0032] In related technologies, the landslide simulation test bench has a low degree of automation in model building, uneven internal physical properties of the landslide body, inaccurate variable control, low precision in mechanical parameter control, and poor controllability and uniformity of internal parameters of the landslide body.

[0033] The following is for reference. Figures 1-5 A landslide experimental system 1 according to an embodiment of the present invention is described.

[0034] like Figure 5As shown, a landslide testing system 1 according to the present invention includes a cylinder 11, a positioning device, and a compaction device. In the present invention, a cavity is formed within the cylinder 11, which is suitable for accommodating a landslide body 16. A first landslide surface is formed on the landslide body 16, which is the actual landslide surface formed on the landslide body 16 during the filling process. The positioning device is disposed within the cavity and can move along a second landslide surface, which is a pre-defined landslide surface during the filling process. The positioning device is used to determine the difference area between the first and second landslide surfaces. Specifically, the difference area between the first and second landslide surfaces is characterized by at least a portion of the first landslide surface being lower than or higher than the corresponding portion of the second landslide surface. The compaction device is disposed within the cavity and can move within the cavity. The compaction device can compact the landslide body 16 according to the difference area. The compaction device can move multiple times to gradually compact the landslide body 16.

[0035] This invention moves a positioning device along the second landslide surface to identify the difference zone and feed back the internal parameters of the landslide body 16. The compaction device then compacts the landslide body 16 according to the difference zone between the first and second landslide surfaces, forming the landslide body 16 into the preset shape required for the landslide experiment. This reduces manual operation in the landslide experiment, improves the automation of landslide body 16 filling, and enhances the accuracy and controllability of the internal parameters of the landslide body 16, thereby improving the reliability of the landslide experiment results.

[0036] According to one embodiment of the present invention, the positioning device includes a first positioning part and a second positioning part. Both the first and second positioning parts are movably disposed within a cavity, wherein the first and second positioning parts face each other in a first direction, and the first and second positioning parts move respectively in a second direction, the first and second directions defining at least a portion of a second landslide surface. It is understood that, since both the first and second positioning parts are movably disposed within the cavity, and face each other in the first direction and move respectively in the second direction, the at least portion of the second landslide surface defined by the first and second positioning parts can be a plane or a curved surface. By setting up a first positioning unit and a second positioning unit, on the one hand, the first positioning unit and the second positioning unit can provide real-time feedback on the difference zone between the first landslide surface and the second landslide surface, and the compaction device can adjust its movement path accordingly to compact the landslide body 16 according to the difference zone, thereby realizing automated filling of the landslide body 16; on the other hand, by setting up the first positioning unit and the second positioning unit, the second landslide surface can be constructed as an irregular surface, thereby making the shape of the landslide body 16 more diverse, and the landslide body 16 can simulate more and more accurate actual geological shapes, thus expanding the application range of landslide experiments and improving the accuracy of the experiments.

[0037] In a specific embodiment of the present invention, both the first positioning part and the second positioning part may include a positioning bar 121 and a positioning ball 122. The positioning bar 121 can move horizontally within the cavity, and the positioning ball 122 is disposed on the positioning bar 121. The positioning ball 122 can slide freely or hover on the positioning bar 121 along the extension direction of the positioning bar 121. It is understood that the positioning ball 122 can also move horizontally within the cavity along with the positioning bar 121.

[0038] According to one embodiment of the present invention, a transmitter is provided on the first positioning part, and a receiver is provided on the second positioning part. The transmitter and receiver are connected in a first direction. The receiver is adapted to receive a positioning signal emitted by the transmitter. When the receiver cannot receive the positioning signal, it determines the difference zone. Specifically, the first and second positioning parts move in a second direction respectively. The receiver on the second positioning part receives the positioning signal emitted by the transmitter on the first positioning part. When the positioning signal is blocked by the landslide body 16 in the first direction, the receiver cannot receive the positioning signal. Thus, the difference zone between the first and second landslide surfaces can be determined by the receiver's reception of the positioning signal. By using the method of transmitting the positioning signal and receiving the positioning signal, the first and second positioning parts can quickly and accurately determine the difference zone and feed the difference zone data back to the external control program. This allows the compaction device to move according to the difference zone to compact the landslide body 16, thereby realizing the filling of the landslide body 16 and improving the automation level of the overall landslide test system 1.

[0039] According to one embodiment of the present invention, the transmitting end on the first positioning unit is adapted to emit light to the receiving end, wherein the light is configured as a positioning signal. By employing the method of configuring light as a positioning signal, the present invention enables the first positioning unit and the second positioning unit to quickly locate the difference area. Simultaneously, since the light emitted by the transmitting end does not contaminate the landslide body 16, interference of the positioning signal with the internal parameters of the landslide body 16 is avoided, ensuring the reliability of the experimental results.

[0040] According to one embodiment of the present invention, the positioning device further includes a sensor. In this invention, the sensor is disposed within the landslide body 16. The sensor is suitable for detecting parameters at a preset location within the landslide body 16 and determining the difference zone based on the detected parameters and the preset parameters. By disposing the sensor within the landslide body 16, the parameters at the preset location within the landslide body 16 can be quickly detected by the sensor. Furthermore, due to the advantages of high stability and reliability of sensor detection, the parameters detected by the sensor are reliable, the location of the difference zone is accurate, and the experimental results are more accurate. In addition, because the sensor has good moisture resistance and corrosion resistance, it has high durability and a long service life, reducing the economic cost of the experiment.

[0041] According to one embodiment of the present invention, the sensor in the present invention includes a stress sensor 123. The stress sensor 123 is configured to be multiple and is arranged at intervals within the landslide body 16. Furthermore, the multiple stress sensors 123 can provide feedback on multiple mechanical quantities within the landslide body 16, thereby avoiding the randomness of the measurement results of a single stress sensor 123, and thus making the location of the difference zone more accurate. At the same time, the compaction degree of the soil in the experiment can be precisely controlled. Furthermore, the compaction degree can precisely control the internal friction angle, cohesion and other mechanical parameters of the soil, thereby improving the controllability and uniformity of the internal parameters of the landslide body 16.

[0042] Furthermore, in a specific embodiment of the present invention, before the construction of the landslide body 16 begins, the bottom of the cylinder body 11 is already laid with rock or soil that meets certain requirements as bedrock 161. The landslide body 16 can be constructed in multiple layers, and each layer of the landslide body 16 is equipped with multiple stress sensors 123 to improve the control accuracy of the internal parameters of the landslide body 16.

[0043] According to one embodiment of the present invention, the sensor further includes a calibration sensor 124, at least a portion of which extends to the outside of the landslide body 16 and is adapted to detect atmospheric pressure within the cavity. By cooperating the calibration sensor 124 with the stress sensor 123, the present invention further improves the accuracy of parameter measurements within the landslide body 16 during experiments. Specifically, during the entire landslide body 16 filling process, the calibration sensor 124 can measure the atmospheric pressure outside the landslide body 16, thereby correcting the measurement results of the stress sensor 123 located inside the landslide body 16, further improving the accuracy of the measurement results.

[0044] like Figure 1 , Figure 4 and Figure 5 As shown, in a specific embodiment of the present invention, a plurality of stress sensors 123 may be arranged at intervals in the landslide body 16 along the horizontal direction. Correspondingly, at least a portion of the calibration sensor 124 extends to the outside of the landslide body 16 and is set at the corresponding horizontal position of each layer of sensors.

[0045] According to one embodiment of the present invention, the compaction device includes a first drive rod 131 and a roller 132. One end of the first drive rod 131 is disposed on the cylinder 11 and is movable relative to the cylinder 11, while the other end of the first drive rod 131 is retractably disposed within the cavity. The roller 132 is disposed on the other end of the first drive rod 131 and is adapted to roll on the first landslide surface to compact the landslide body 16. Furthermore, it should be noted that the roller 132 can be changed in size according to actual location requirements to better compact the landslide body 16 according to the differential areas.

[0046] The first drive rod 131 and roller 132 of this invention are driven by an external motor. The first drive rod 131 can extend and retract within a certain length range to adjust the distance between the roller 132 and the landslide body 16, allowing the roller 132 to roll along the first landslide surface. Simultaneously, with the downward pressure of the first drive rod 131, the roller 132 and the first drive rod 131 work together to compact the soil of the landslide body 16. By employing the first drive rod 131 and roller 132 to compact the landslide body 16, this invention avoids manual soil compaction and improves the automation level of the overall landslide experimental system 1.

[0047] According to one embodiment of the present invention, the compaction device further includes a second drive rod 133 and a pressure plate 134. One end of the second drive rod 133 is disposed on the cylinder body 11 and is movable relative to the cylinder body 11, while the other end of the second drive rod 133 is telescopically disposed within the cavity along the height direction. The pressure plate 134 is disposed on the other end of the second drive rod 133, and a pressure surface extending in the horizontal direction is formed on the pressure plate 134. The pressure surface on the pressure plate 134 is suitable for further compacting the landslide body 16 compacted by the roller 132 and the first drive rod 131.

[0048] like Figure 5 As shown, when the landslide body 16 reaches a certain scale, the distance between the pressure plate 134 and the landslide body 16 can be adjusted by controlling the extension and retraction of the second drive rod 133, allowing the pressure plate 134 to contact the first landslide surface. Furthermore, with the downward pressure of the second drive rod 133, the second drive rod 133 and the pressure plate 134 further compact the landslide body 16, thereby further enabling the landslide body 16 to achieve the preset characteristics of the experiment. This improves the automation level of the landslide experimental system 1 and increases the accuracy and value of the experimental results. In addition, in subsequent landslide model tests, the second drive rod 133 and the pressure plate 134 can also provide external loads to induce landslides through simulated loading, further increasing the automation level of the experiment.

[0049] According to one embodiment of the present invention, the landslide experimental system 1 further includes a spraying device 14. In this invention, the spraying device 14 has multiple spray nozzles, each of which is directly opposite the first landslide surface in the height direction. Each spray nozzle can be selectively opened to spray onto the first landslide surface. By providing multiple spray nozzles that can selectively spray onto the first landslide surface, the spraying device 14 can not only simulate rainfall conditions but also rainfall conditions under complex environments, such as localized heavy rainfall, thereby increasing the experimental value.

[0050] like Figure 1 and Figure 3 As shown, in a specific embodiment of the present invention, the spray nozzles of the spray device 14 may include large-diameter spray nozzles 141 and small-diameter spray nozzles 142 of different sizes. The large-diameter spray nozzles 141 and small-diameter spray nozzles 142 can provide spray volumes of different intensities. The large-diameter spray nozzles 141 and small-diameter spray nozzles 142 are supplied with water by an external spray control system and are arranged in a cross pattern to achieve experimental conditions of uneven rainfall intensity distribution.

[0051] Furthermore, according to a specific embodiment of the present invention, the landslide experimental system 1 of the present invention further includes a support 15, which provides support, fixation, and installation for the overall landslide experimental system 1. The cylinder 11 of the present invention can be fixed on the support 15. The support 15 includes a top support 151, a left support 152, and a right support 153, wherein the top support 151 is provided with multiple mounting positions, and the first drive rod 131, the second drive rod 133, and the spraying device 14 can be mounted on the top support 151 through the corresponding mounting positions.

[0052] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0053] In the description of this invention, "first feature" and "second feature" may include one or more of the features.

[0054] In the description of this invention, "a plurality of" means two or more.

[0055] In the description of this invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0056] In the description of this invention, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature.

[0057] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0058] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A landslide experimental system, characterized in that, include: The cylinder body has a cavity formed inside the cylinder body that is suitable for accommodating the landslide body. A first landslide surface is formed on the landslide body. The first landslide surface is the landslide surface that is actually formed on the landslide body during the landslide body filling process. A positioning device is disposed in the cavity. The positioning device moves along the second landslide surface and is used to determine the difference area between the first landslide surface and the second landslide surface. The second landslide surface is a landslide surface preset during the landslide filling process. A compaction device, which is movably disposed within the cavity and compacts the landslide body according to the differential zone; The positioning device includes: A first positioning part and a second positioning part are movably disposed within the cavity; the first positioning part and the second positioning part face each other in a first direction and move in a second direction respectively, the first direction and the second direction defining at least a portion of the second landslide surface; wherein The first positioning unit is provided with a transmitter, and the second positioning unit is provided with a receiver. The transmitter and the receiver are in a first direction. The receiver is adapted to receive the positioning signal emitted by the transmitter. When the receiver cannot receive the positioning signal, it determines the difference area.

2. The landslide experimental system according to claim 1, characterized in that, The transmitting end is adapted to emit light to the receiving end, and the light is configured as the positioning signal.

3. The landslide experimental system according to claim 1, characterized in that, The positioning device further includes a sensor disposed within the landslide body, the sensor detecting parameters at a preset location within the landslide body and determining the difference zone based on the parameters and the preset parameters.

4. The landslide experimental system according to claim 3, characterized in that, The sensor includes a stress sensor, wherein multiple stress sensors are arranged at intervals within the landslide body.

5. The landslide experimental system according to claim 4, characterized in that, The sensor further includes a calibration sensor, at least a portion of which extends outside the landslide body and is adapted to detect atmospheric pressure within the cavity.

6. The landslide experimental system according to claim 1, characterized in that, The compaction device includes: A first drive rod, one end of which is movably disposed in the cylinder body, and the other end of which is retractably disposed in the cavity; A roller is disposed at the other end of the first drive rod and is adapted to roll on the first landslide surface.

7. The landslide experimental system according to claim 5, characterized in that, The compaction device further includes: The second drive rod has one end movably disposed in the cylinder body and the other end retractably disposed in the cavity along the height direction; A pressure plate is disposed at the other end of the second drive rod, and a pressure surface extending in the horizontal direction is formed on the pressure plate.

8. The landslide experimental system according to claim 1, characterized in that, Also includes: A spraying device having multiple spray nozzles, each of which is directly opposite the first landslide surface in the height direction, and each spray nozzle can be selectively opened to spray onto the first landslide surface.

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