Free-sliding device and method for landslide body with accumulation form

Abstract

The present invention discloses a landslide free-sliding device and method with a stacking form. The device includes a sliding surface main body, a magnetic conduction component, a cover plate, a steel strand, a winch and a control system; the magnetic conduction component includes an electromagnet component and an iron strip; the electromagnet component is embedded in the sliding surface main body, and the iron strip is located above the electromagnet component; when the magnetic conduction component is powered off, the control system controls the winch to lift the steel strand to pull up the cover plate so as to release the landslide. When the landslide with a stacking form in the present invention freely slides, the electromagnet component is used in combination with the cover plate and the steel strand to fix the landslide on the sliding surface. The landslide is stacked into a required shape according to needs. By disconnecting the power supply of the electromagnet and starting the winch to pull up the cover plate, the landslide loses the supporting effect of the cover plate and slides down. The present invention realizes the stacking of the landslide according to a specified shape and the free release, and truly reflects the characteristics of landslide surge waves.

Description

Technical Field

[0001] The present invention relates to a landslide surge model test device and method in the field of geotechnical engineering, and particularly to a free-sliding device and method for a landslide body with a stacking shape. Background Art

[0002] In the partial submergence landslide surge model test, part of the landslide body is submerged in water before starting. Compared with the landslide on water, the stacking and starting of the landslide body are more complex. Since the landslide body is far from the water surface in the landslide on water, the influence on the water body when the landslide body starts does not need to be considered. However, due to its position characteristics in the partial submergence landslide, the interaction with the water body when the landslide body starts needs to be considered, and the test control is more complex, resulting in fewer practices of the partial submergence landslide surge test.

[0003] In the partial submergence landslide surge model test, the stacking shape of the landslide body is one of the main factors affecting the test results of the landslide surge. At present, the actual stacking shape of the landslide body is rarely considered in the physical model test of the landslide surge, and mostly only the volume of the landslide body is considered. The main reason is that in the landslide surge experiment where the landslide body is a granular material, since the sliding surface is usually steep, the granular material is easy to slide freely during the stacking process and thus cannot be stacked into the expected shape, resulting in fewer landslide surge experiments considering the actual stacking shape of the landslide body. How to stack the landslide body into the expected shape and freely release it to generate a surge is still an urgent problem to be solved. Summary of the Invention

[0004] Object of the Invention: Aiming at the deficiencies existing in the prior art, the present invention provides a free-sliding device and method for a landslide body with a stacking shape, which truly reflects the characteristics of the landslide surge through the free sliding of the landslide body.

[0005] Technical Solution: The free-sliding device for a landslide body with a stacking shape of the present invention includes a sliding surface main body, a magnetic guiding component, a cover plate, a steel wire rope, a winch and a control system;

[0006] The magnetic guiding component includes an electromagnet component and an iron strip; the electromagnet component is embedded in the sliding surface main body, and the iron strip is located above the electromagnet component;

[0007] When the magnetic guiding component is powered off, the control system controls the winch to lift the steel wire rope to pull up the cover plate and then release the landslide body.

[0008] The cover plate includes iron bars and a wire mesh, and the iron bars are wrapped around the edge of the wire mesh. The shape of the iron bars is the same as that of the iron strip, and the iron bars are placed on the iron strip.

[0009] One end of the steel wire rope is connected to the lower end of the iron bar.

[0010] A groove for accommodating the iron strip is formed on the sliding surface main body, and the iron strip is placed in the groove for magnetic guiding adsorption and fixing the cover plate.

[0011] The sliding surface body is provided with a counterbore for fixing the electromagnet assembly, and the electromagnet assembly is embedded in the counterbore for applying the gravitational force required to fix the landslide mass.

[0012] The shape of the iron strip is the same as the contour shape of the landslide mass.

[0013] The electromagnet assembly includes electromagnets at the lower part, upper part, and both sides of the sliding surface.

[0014] The method for the free sliding of the landslide mass with a piled-up shape in the present invention includes the following steps:

[0015] (1) Reserve a groove for placing the iron strip and a counterbore for the electromagnet assembly on the sliding surface body, place the electromagnet in the counterbore, and place the iron strip in the groove;

[0016] (2) Place the cover plate on the iron strip, connect one end of the steel strand to the lower end of the iron strip, and the other end to the winch;

[0017] (3) Energize the electromagnets at the lower part and the left and right parts of the sliding surface body, so that the lower part and the left and right parts of the cover plate are fixed, and place the landslide mass into the sliding surface body from above the cover plate;

[0018] (4) Energize the electromagnet assembly, and the landslide mass is pressed against the sliding surface by the wire mesh and the steel strand to form a set contour;

[0019] (5) Cut off the power supply of the electromagnets at the lower part and both sides of the sliding surface, start the winch to pull up the cover plate, and the landslide mass loses the restraint of the cover plate and slides down into the water.

[0020] Working principle: The present invention uses the electromagnet assembly in combination with the cover plate and the steel strand to fix the landslide mass on the sliding surface. The landslide mass is piled up into the required shape as needed. By disconnecting the power supply of the electromagnet and starting the winch to pull up the cover plate, the landslide mass loses the support of the cover plate and realizes free sliding.

[0021] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0022] In the present invention, the landslide mass is piled up into the required shape as needed. By disconnecting the power supply of the electromagnet and starting the winch to pull up the cover plate, the landslide mass loses the support of the cover plate and freely slides down. The present invention realizes the piling up of the landslide mass in a specified shape and the free release, truly reflecting the piled-up shape of the landslide. Brief description of the drawings

[0023] Figure 1 It is a schematic structural diagram of the device for the free sliding of the landslide mass with a piled-up shape in the present invention;

[0024] Figure 2This is the process diagram of the free sliding method of the landslide body with a stacking form in the present invention;

[0025] Among them, Figure 2 (a) is a schematic diagram of arranging the electromagnet assembly in the present invention; Figure 2 (b) is a schematic diagram of arranging the iron strip in the present invention; Figure 2 (c) is a schematic diagram of arranging the cover plate in the present invention;

[0026] Figure 3 This is the schematic diagram of the stacking state of the landslide body in the present invention;

[0027] Figure 4 This is the schematic diagram of the release state of the landslide body in the present invention. Specific implementation method

[0028] As Figure 1 shown, in the device for the free sliding of the landslide body with a stacking form under electromagnetic control in the present invention, the main body 1 of the sliding surface is built with reinforced concrete and plastered with cement mortar on the surface. This part is used to carry the magnetic conduction component, the landslide body cover plate 4, the steel strand 5, the winch 6 and the control system 7, and provides a sliding surface for the landslide body. The magnetic conduction component includes the electromagnet assembly 2 and the iron strip 3. A circular sunk hole for placing the electromagnet assembly 2 and a groove for placing the iron strip 3 are reserved in the main body 1 of the sliding surface.

[0029] The electromagnet assembly 2 includes an electromagnet at the lower part of the sliding surface, an electromagnet at the upper part and electromagnets on both sides. The electromagnet assembly 2 is placed at the contour of the landslide body and embedded in the main body 1 of the sliding surface, and is used to apply the gravitational force required for fixing the landslide body. The iron strip 3 is placed above the electromagnet assembly 2, in the groove of the sliding surface, and is used for magnetic conduction, adsorbing and fixing the cover plate 4. The shape of the iron strip 3 is the shape of the landslide body contour. The cover plate 4 is used to fix the landslide body.

[0030] The steel strand 5 remains in a tensioned state when stacking the landslide, applies a certain downward pressure to the landslide body, and increases the stacking height of the landslide body. When releasing the landslide body, the cover plate 4 is pulled up through the steel strand 5, so that the landslide body slides freely.

[0031] The winch 6 is placed at the upper end of the landslide surge model. When the landslide body is released, the steel strand 5 is retracted, so as to pull up the cover plate 4 and make the landslide body slide freely. The control system 7 is used to control the switches of the electromagnet assembly 2 and the winch 6, and realizes turning on the winch 6 while turning off the electromagnet assembly 2, and releasing the landslide body under the cover plate 4.

[0032] The cover plate 4 is composed of iron bars 41 and wire meshes 42. The shape of the iron bars 41 is the same as that of the iron belt 3, and the iron bars 41 are placed on the iron belt 3. After the electromagnet assembly 2 is powered on, the iron bars 41 are attracted and fixed on the sliding surface. The wire meshes 42 are fixed on the iron bars 41. After the iron bars 41 are adsorbed and fixed by the electromagnet assembly 2, the wire meshes 42 are also laid on the sliding surface, applying a downward pressure perpendicular to the sliding surface direction to the landslide body, so that the landslide body accumulates into the designed contour.

[0033] The steel strand 5 is fixed on the iron bars 41 at the lower end of the landslide body, pulled along the wire meshes 42 to the winch 6 at the upper part of the sliding surface and tightened and fixed. When piling up the landslide, the steel strand 5 is lifted to apply a downward pressure to the landslide body, so that the landslide body accumulates into the designed contour. When the electromagnet assembly 2 is powered on, the winch 6 is started immediately, and the cover plate 4 is pulled up, so that the cover plate 4 is separated from the landslide body, reducing the influence on the movement of the landslide body and enabling the landslide body to slide freely.

[0034] The control system 7 is used to control the switches of the electromagnet assembly 2 and the winch 6, and realizes starting the winch while closing the electromagnet assembly 2 to release the landslide body.

[0035] The process of the method for the free sliding of the landslide body with a stacked shape under electromagnetic control of the present invention is as follows:

[0036] (1) As shown in Figure 2 , first, a groove for placing the iron belt 3 and a circular counterbore for the electromagnet assembly 2 are reserved on the main body 1 of the sliding surface. Then, the electromagnet assembly 2 is placed in the circular counterbore to ensure that the surface of the electromagnet in the electromagnet assembly 2 is flush with the opening of the counterbore. Next, the iron belt 3 is arranged in the groove. Finally, the cover plate 4, the steel strand 5 are placed and the winch 6 is set up.

[0037] (2) As shown in Figure 3 , the electromagnets on the upper part of the main body 1 of the sliding surface are not powered on, only the electromagnets on the lower part and both sides of the sliding surface are powered on, so that the lower part and the left and right sides of the cover plate 4 are fixed, and the upper part is open. The block stones forming the landslide body are placed on the main body 1 of the sliding surface from the upper part of the cover plate 4. After the landslide body is filled, the electromagnets on the upper part of the sliding surface are powered on, and the whole landslide body is pressed on the sliding surface by the wire meshes 42 and the steel strand 5 and forms the desired contour.

[0038] (3) As shown in Figure 4 , the electromagnets on the lower part and both left and right sides of the sliding surface are powered off, and the electromagnet at the upper end of the sliding surface is still powered on; at the same time, the winch 6 starts to lift the cover plate 4. At this time, the lower end and the left and right sides of the cover plate 4 lose the attraction of the electromagnet, but the upper part of the cover plate 4 is still fixed. Under the lifting action of the winch 6, the cover plate 4 is turned up, and the landslide body loses the restraint of the cover plate 4 and slides freely into the water.

Claims

1. A landslide body free-sliding device with a stacking form, characterized in that: It includes a sliding surface main body (1), a magnetic conduction component, a cover plate (4), a steel strand (5), a winch (6) and a control system (7); The magnetic conduction component includes an electromagnet component (2) and an iron strip (3); the electromagnet component (2) is embedded in the sliding surface main body (1), and the iron strip (3) is located above the electromagnet component (2); When the magnetic conduction component is powered off, the control system (7) controls the winch (6) to lift the steel strand (5) to pull up the cover plate (4) so as to release the landslide body; The cover plate (4) includes an iron bar (41) and a wire mesh (42), and the iron bar (41) is coated on the edge of the wire mesh (42); One end of the steel strand (5) is connected to the lower end of the iron bar (41); The electromagnet component (2) includes an electromagnet at the lower part of the sliding surface, an electromagnet at the upper part and electromagnets at both sides.

2. The landslide body free-sliding device with a stacking form according to claim 1, wherein: A groove for accommodating the iron strip (3) is formed on the sliding surface main body (1).

3. The landslide body free-sliding device with a stacking form according to claim 1, characterized in that: A counterbore for fixing the electromagnet component (2) is formed on the sliding surface main body (1).

4. The landslide body free-sliding device with a stacking form according to claim 1, characterized in that: The shape of the iron strip (3) is the same as the contour shape of the landslide body.

5. A method for the free sliding of a landslide body with a stacked shape, characterized in that: It is implemented by using the landslide body free-sliding device with a stacking form as described in claim 1. The method includes the following steps: (1) Reserve a groove for placing the iron strip (3) and a counterbore for the electromagnet component (2) on the sliding surface main body (1), place the electromagnet component in the counterbore, and place the iron strip (3) in the groove; (2) Place the cover plate (4) on the iron strip (3), connect one end of the steel strand (5) to the lower end of the iron bar (41), and connect the other end to the winch (6); (3) Power on the electromagnets at the lower part, left and right parts of the sliding surface main body, so that the lower part, left and right parts of the cover plate (4) are fixed, and place the landslide body into the sliding surface main body from above the cover plate; (4) Power on the electromagnet component (2), and the landslide body is pressed on the sliding surface by the wire mesh (42) and the steel strand (5) to form a set contour; (5) Power off the electromagnets of the sliding surface main body, start the winch (6) to pull up the cover plate (4) upward, and the landslide body slides into the water without the restraint of the cover plate (4).

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