A landslide centrifugal box for monitoring model piles

Abstract

The present invention provides a landslide centrifugal box for monitoring model piles, comprising: a box body, a camera assembly and a light bulb assembly, wherein a landslide fixing plate is arranged in the box body, the landslide fixing plate is provided with a plurality of fixing holes, a model pile is fixed in each fixing hole, the model pile is made of a brittle and conductive material, the camera assembly is arranged on the inner wall of one side plate of the box body, the light bulb assembly is arranged in the middle of the other side plate opposite to the camera assembly, a plurality of light bulbs with power supply are arranged in the light bulb assembly, and each light bulb and a model pile form a circuit loop through a wire. The beneficial effects of the present invention are as follows: the landslide centrifugal box can monitor the failure of the model pile in real time, can timely find the time when the model pile breaks in the centrifugal model test, thereby accurately calculating the failure load of the model pile, and can reduce the experimental error; and the landslide centrifugal box is simple to operate, and can effectively reduce the difficulty of the centrifugal model test.

Description

Technical Field

[0001] The invention relates to the technical field of indoor simulation experiments, and in particular to a landslide centrifugal box for monitoring model piles. Background Art

[0002] In slope management, anti-slide piles are a common management measure in engineering because of their small disturbance to the rock and soil of the slope and good management effect. The failure load of the anti-slide pile is the key to the design of the size of the anti-slide pile. In order to determine the failure load of the anti-slide pile, it is usually necessary to conduct a centrifugal model test to test the failure load of the model pile, and then predict the failure load of the anti-slide pile through the test model pile. The centrifugal model test process is: establish a landslide model to be tested in a landslide centrifugal box to simulate the landslide structure in the natural environment, and simulate the landslide centrifugal box through the model pile, and then fix the landslide centrifugal box on a centrifuge to rotate, and simulate the gravity of the landslide in the natural environment through the centrifugal force on the landslide model. When the existing landslide centrifugal box is used to test the failure load of the anti-slide pile, because the landslide centrifugal box rotates with the centrifuge, it is difficult for the test personnel to observe the state of the landslide model in the landslide centrifugal box and whether the model pile is failed in time. Therefore, the error of the existing landslide centrifugal box in testing the failure load of the anti-slide pile is large, and the test process is complicated. In order to reduce the error of the centrifugal model test and simplify the test process, the present invention provides a landslide centrifugal box for monitoring the model pile. Summary of the invention

[0003] To solve the above problems, the present invention provides a box body, a camera assembly and a light bulb assembly. The box body is open at the top and hollow inside. A landslide fixing plate is arranged in the box body. The landslide fixing plate is inclined relative to the bottom of the box body. The landslide fixing plate is provided with a plurality of fixing holes. The fixing holes penetrate the landslide fixing plate. The upper surface of the landslide fixing plate is used to place a simulated landslide layer. A model pile for simulating an anti-slide pile is fixed in each fixing hole. The landslide fixing plate extends from the upper end of the model pile. The model pile is made of a brittle and conductive material. The camera assembly is arranged on the inner wall of one side plate of the box body. The light bulb assembly is arranged in the middle of the other side plate opposite to the camera assembly. A plurality of light bulbs with power supplies are arranged in the light bulb assembly. The number of the light bulbs is the same as the number of the model piles. The upper and lower ends of each model pile are connected with wires. The wires at the upper and lower ends of each model pile are connected to a light bulb, so that each model pile and a light bulb form a circuit loop.

[0004] Furthermore, the model pile is made of graphite.

[0005] Furthermore, a telescopic device is provided below each fixing hole, a telescopic sleeve is provided on the upper part of each telescopic device, a telescopic tube is provided in each telescopic sleeve, the telescopic sleeve of each telescopic device is limited in a fixing hole, the lower end of each model pile is fixed in a telescopic tube, and the telescopic device drives the telescopic tube to extend and retract, thereby driving the model pile to extend and retract in the fixing hole.

[0006] Furthermore, a wire hole is provided near each of the fixing holes, and the wire at the upper end of the fixing hole passes through the wire hole and extends to the bottom of the fixing plate, and is connected to the bulb of the bulb assembly along the bottom of the box.

[0007] Furthermore, a wire tube is provided at the bottom of the box body, and the wire tube is used to accommodate the wires connected to the model piles.

[0008] Furthermore, the bottom edge and the top of the box body are both provided with fixing screw holes, and the fixing screw holes are used to fix the box body to the centrifuge by fixing screws.

[0009] Furthermore, the number of the fixing holes is nine, and the nine fixing holes are arranged in the form of three horizontal and three vertical holes.

[0010] Furthermore, the cross-sections of all the fixing holes are circular, and all the model piles are cylindrical.

[0011] Furthermore, the landslide fixing plate comprises a landslide upper plate and a landslide lower plate, the landslide upper plate and the landslide lower plate are arranged in parallel, and a simulated landslide layer is arranged on the landslide upper plate.

[0012] Furthermore, the landslide centrifugal box also includes a remote terminal, which is connected to the telescopic device and the camera assembly by wireless connection. The remote terminal is used to control the remote terminal to drive the model pile to telescope and display image information captured by the camera assembly.

[0013] The landslide centrifugal box for monitoring model piles of the present invention has the following beneficial effects: the landslide centrifugal box can monitor the failure of the model pile in real time, can timely discover the time when the model pile breaks in the centrifugal model test, thereby accurately calculating the failure load of the model pile, and reducing the experimental error; at the same time, a telescopic device of the telescopic model pile is provided at the bottom of the model pile, and the telescopic device can adjust the length of the model pile extending out of the fixed hole, thereby testing the failure load when the model pile is extended to different lengths; the landslide centrifugal box is simple to install and disassemble, saves time, is easy to operate, and can effectively reduce the difficulty of the centrifugal model test. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a first overall structural schematic diagram of a landslide centrifugal box for monitoring model piles according to the present invention.

[0015] Figure 2 It is a second overall structural schematic diagram of a landslide centrifugal box for monitoring model piles of the present invention.

[0016] Figure 3 yes Figure 1 Schematic diagram of the structure of the middle landslide fixing plate 2.

[0017] Figure 4 It is a structural schematic diagram of the telescopic device 223.

[0018] Figure 5 The invention is a cross-sectional schematic diagram of a centrifugal box for monitoring a landslide of a model pile when in operation.

[0019] In the figure: 1-box, 11-fixing screw hole, 2-landslide fixing plate, 21-landslide upper plate, 22-landslide lower plate, 211-fixing hole, 212-wire hole, 213-model pile, 223-telescopic device, 224-telescopic sleeve, 225-telescopic tube, 3-camera assembly, 4-bulb assembly, 41-indicator bulb, 42-wire tube, 43-wire, 5-simulated landslide layer. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0021] Please refer to Figures 1 to 5A landslide centrifugal box for monitoring model piles comprises a box body 1, the box body 1 is open at the top and hollow inside, the box body 1 is provided with fixing screw holes 11 at the edge and the top, the fixing screw holes 11 are used to fix the box body 1 on the centrifuge, a landslide fixing plate 2 is arranged inside the box body 1, the landslide fixing plate 2 is arranged obliquely relative to the bottom of the box body 1, preferably, the landslide fixing plate 2 comprises a landslide upper plate 21 and a landslide lower plate 22 arranged in parallel, the upper side surface of the landslide upper plate 21 is provided with a simulated landslide layer 5, the simulated landslide layer 5 is composed of The landslide upper plate 21 is formed by mixing soil, sand, gravel, gypsum and other materials to simulate the slope in the natural environment. The landslide upper plate 21 is provided with a plurality of fixing holes 211, and the fixing holes 211 penetrate the landslide upper plate 21 and the landslide lower plate 22. Preferably, the number of the fixing holes 211 is nine, and the nine fixing holes 211 are arranged in the form of three horizontal and vertical. The cross-section of all the fixing holes 211 is circular, and a wire hole 212 is provided near each of the fixing holes 211, and each of the wire holes 212 penetrates the landslide upper plate 21 and the landslide lower plate 22. The lower end of each fixed hole 211 is provided with a telescopic device 223, and the upper part of each telescopic device 223 is provided with a cylindrical telescopic sleeve 224, and each telescopic sleeve 224 is provided with a telescopic tube 225. The nine telescopic devices 223 are respectively fixed to the lower ends of the nine fixed holes 211, and the telescopic sleeve 224 of each telescopic device 223 is limited in a fixed hole 211, and the telescopic tube 225 of each telescopic sleeve 224 is provided with a model pile 213, and the model pile 213 is made of a brittle and conductive material. Preferably, the model pile 213 is made of a brittle and conductive material. The pile 213 is a rod made of graphite. The lower end of each model pile 213 is fixed in a telescopic cylinder 225, and the upper end extends upward from the fixing hole 211. The function of the model pile 213 is to simulate an anti-slip pile. The telescopic device 223 is connected to a remote terminal through wireless communication. The remote terminal includes but is not limited to a computer. The experimenter can control the telescopic device through the remote terminal to make the telescopic cylinder 225 telescope in the telescopic sleeve 224, thereby driving the model pile 213 connected to the telescopic cylinder 225 to telescope in the fixing hole 211.

[0022] The box body 1 is also provided with a camera assembly 3 and a light bulb assembly 4. The camera assembly 3 is arranged at the upper end of one side panel of the box body 1 and fixed on the inner wall of the side panel of the box body 1. The light bulb assembly 4 is arranged in the middle of the other side panel opposite to the camera assembly 3. The light bulb assembly 4 includes a light bulb box and nine light bulbs 41 arranged in the light bulb box and equipped with a power supply. The upper and lower ends of each model pile 213 are connected with a wire 43. The wire 43 at the upper and lower ends of each model pile 213 is connected to a light bulb 41. The model pile 213 has good conductivity, that is, each model pile 213 forms a circuit loop with a light bulb 41 through the wire 43. The nine light bulbs 41 form nine independent circuit loops with the nine model piles 213. In the circuit loop, when the model pile 213 remains intact, the bulb 41 in the circuit loop is in a bright state; when the model pile 213 is disconnected, the bulb 41 in the circuit loop changes from a bright state to an off state due to the disconnection of the circuit loop (the model pile 213 is broken into two sections of the model pile 213. Even if the two sections of the model pile 213 are partially in contact, their resistance will increase, so that the power supply in the bulb 41 will not be able to light up the bulb 41 due to excessive resistance); the camera assembly 3 is used to monitor the brightness of the nine bulbs 41 of the bulb assembly 4, and transmit the image obtained by the camera assembly 3 to the remote terminal in real time. The test personnel can monitor in real time whether the model pile 213 used to simulate the anti-slip pile is broken and failed by observing the graphics of the bulb assembly 4 on the remote terminal.

[0023] Furthermore, a wire tube 42 is further provided in the box body 1 , one end of the wire tube 42 is connected to the bulb box, and the other end extends to below the landslide fixing plate 2 , and all the wires 43 are received in the wire tube 42 .

[0024] The function of a landslide centrifugal box for monitoring model piles of the present invention is to monitor the (fracture) failure of the model pile in the centrifugal model test, so as to determine the failure load of the model pile (that is, the maximum load that the model pile can withstand). The working principle and process are as follows: the landslide centrifugal box is fixed on the centrifuge through the fixing screw hole 11; the model pile 213 is driven to be extended and retracted by the telescopic device 223 controlled by the remote terminal, and the model pile 312 is extended and retracted to a specified height; the centrifuge is started to drive the landslide centrifugal box to rotate; the rotation speed of the centrifuge is gradually increased until it is accelerated to the specified rotation speed or the light bulb 41 in the light bulb assembly 4 is observed to be extinguished through the screen of the remote terminal; the rotation speed of the centrifuge when the light bulb 41 is extinguished is recorded, and the bearing load corresponding to the rotation speed is calculated, which is the failure load of the model pile.

[0025] At the same time, the failure load of the model pile is different when the model pile extends out of the surface of the landslide fixing plate 2. The extension height of the model pile is adjusted by the extension device 223. By repeating the above experimental process, the failure load of the model pile 213 when it extends out to different lengths can be tested.

[0026] The landslide centrifugal box for monitoring model piles of the present invention has the following beneficial effects: the landslide centrifugal box can monitor the failure of the model pile in real time, can timely discover the time when the model pile breaks in the centrifugal model test, thereby accurately calculating the failure load of the model pile, and reducing the experimental error; at the same time, a telescopic device of the telescopic model pile is provided at the bottom of the model pile, and the telescopic device can adjust the length of the model pile extending out of the fixed hole, thereby testing the failure load when the model pile is extended to different lengths; the landslide centrifugal box is simple to install and disassemble, saves time, and is simple to operate, thereby effectively reducing the difficulty of the centrifugal model test.

[0027] In this document, the directional words such as front, back, top, and bottom are defined by the positions of the components in the drawings and the positions of the components relative to each other, and are only for the sake of clarity and convenience in expressing the technical solution. It should be understood that the use of the directional words should not limit the scope of protection claimed in this application.

[0028] In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A landslide centrifugal box for monitoring model piles, characterized in that: It comprises a box body, a camera assembly and a light bulb assembly, the box body is open at the top and hollow inside, a landslide fixing plate is arranged in the box body, the landslide fixing plate is arranged obliquely relative to the bottom of the box body, the landslide fixing plate is provided with a plurality of fixing holes, the fixing holes penetrate the landslide fixing plate, the upper surface of the landslide fixing plate is used to place a simulated landslide layer, a model pile for simulating an anti-slide pile is fixed in each fixing hole, the landslide fixing plate extends from the upper end of the model pile, the model pile is made of a brittle and conductive material, the camera assembly is arranged on the inner wall of one side plate of the box body, the light bulb assembly is arranged in the middle of the other side plate opposite to the camera assembly, a plurality of light bulbs with power supplies are arranged in the light bulb assembly, the number of the light bulbs is the same as the number of the model piles, the upper and lower ends of each model pile are connected with wires, the wires at the upper and lower ends of each model pile are connected to a light bulb, so that each model pile and a light bulb form a circuit loop; A telescopic device is provided below each of the fixing holes, a telescopic sleeve is provided on the top of each of the telescopic devices, a telescopic tube is provided inside each of the telescopic sleeves, the telescopic sleeve of each of the telescopic devices is limited in a fixing hole, the lower end of each model pile is fixed in a telescopic tube, the telescopic device drives the telescopic tube to extend and retract, thereby driving the model pile to extend and retract in the fixing hole; A wire hole is arranged near each of the fixing holes. The wire at the upper end of the fixing hole passes through the wire hole and extends to the bottom of the fixing plate, and is connected to the bulb of the bulb assembly along the bottom of the box.

2. A centrifugal box for monitoring landslides of model piles according to claim 1, characterized in that: The model pile is made of graphite.

3. The centrifugal box for monitoring landslides of model piles according to claim 1, characterized in that: A wire tube is provided at the bottom of the box body, and the wire tube is used to accommodate the wires connected to the model pile.

4. A landslide centrifugal box for monitoring model piles according to claim 3, characterized in that: The bottom edge and the top of the box body are both provided with fixing screw holes, and the fixing screw holes are used to fix the box body on the centrifuge by fixing screws.

5. The centrifugal box for monitoring landslides of model piles according to claim 3, characterized in that: The number of the fixing holes is nine, and the nine fixing holes are arranged in a three-horizontal and three-vertical form.

6. The centrifugal box for monitoring landslides of model piles according to claim 1, characterized in that: All fixing holes are circular in cross-section and all model piles are cylindrical.

7. The centrifugal box for monitoring landslides of model piles according to claim 1, characterized in that: The landslide fixing plate comprises a landslide upper plate and a landslide lower plate, the landslide upper plate and the landslide lower plate are arranged in parallel, and a simulated landslide layer is arranged on the landslide upper plate.

8. The centrifugal box for monitoring landslides of model piles according to claim 1, characterized in that: The landslide centrifugal box also includes a remote terminal, which is connected to the telescopic device and the camera assembly through wireless communication. The remote terminal is used to control the remote terminal to drive the model pile to telescope and display image information captured by the camera assembly.

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