Landslide physical model test device capable of adjusting softening of sliding zone

Abstract

The utility model discloses a landslide physical model test device capable of adjusting the softening of a slip band, which comprises a water seepage system and a water supply system, and the water supply system supplies water to the water seepage system; the water seepage system comprises a transparent model box, an experiment simulation slope body is arranged in the model box, the experiment simulation slope body comprises a sliding bed foundation built by bricks and concrete and a front edge sliding surface platform, a drainage hole is formed in the front edge sliding surface platform and penetrates through the bottom of the model box, and a plurality of water seepage modules are arranged on the sliding bed foundation side by side along the slope surface; each water seepage module comprises a water seepage groove support parallel to the slope surface, a plurality of mounting openings are formed in the top of each water seepage groove support at equal intervals along the slope surface, a corresponding transparent water seepage groove is embedded in each mounting opening, and each water seepage groove is filled with a plurality of permeable stones. The change of underground water in a natural environment can be simulated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of soil test equipment, in particular to a landslide physical model test device with adjustable sliding zone softening. BACKGROUND

[0002] Traditional reservoir landslide physical model test research mainly concentrates on the slope body infiltration, but this test method amplifies the scouring and erosion effect of reservoir water on the slope surface, and water often cannot fully and uniformly infiltrate into the sliding zone. The prior art weakens the main control effect of the sliding zone soil on the landslide, and lacks systematic research on the mechanical properties of the sliding zone soil under complex periodic conditions of underground water. UTILITY MODEL CONTENT

[0003] The utility model provides a kind of landslide physical model test device with adjustable sliding zone softening, to solve the problem that the test device of existing amplifies the scouring and erosion effect of reservoir water on the slope surface, and water often cannot fully and uniformly infiltrate into the sliding zone, weakens the main control effect of the sliding zone soil on the landslide, and lacks systematic research on the mechanical properties of the sliding zone soil under complex periodic conditions of underground water.

[0004] To solve the above technical problems, the technical scheme adopted by the utility model is as follows:

[0005] A kind of landslide physical model test device with adjustable sliding zone softening, including water infiltration system and water supply system, and water supply system supplies water to water infiltration system;

[0006] The water infiltration system includes a transparent model box, and an experimental simulation slope body is arranged in the model box, the experimental simulation slope body includes a sliding bed foundation and a front edge sliding surface platform formed by bricks and concrete, a drainage hole is arranged on the front edge sliding surface platform and penetrates the bottom of the model box, and a plurality of water infiltration modules are arranged side by side along the slope surface on the sliding bed foundation;

[0007] Each water infiltration module includes a water infiltration groove support parallel to the slope surface, a plurality of mounting holes are arranged on the top of the water infiltration groove support at equal intervals along the slope surface, a corresponding transparent water infiltration groove is embedded in each mounting hole, and a plurality of water permeable stones are filled in each water infiltration groove;

[0008] The water supply system includes a transparent water storage tank, the water storage tank is higher than the model box, and a plurality of water outlets are uniformly arranged on the water storage tank close to the water infiltration modules, each water outlet is connected to a corresponding flow rate regulator through a ball valve, each flow rate regulator is connected to a flow divider, the other water outlet ends of the flow divider are connected to corresponding PVC water pipes in parallel, and the PVC water pipes pass through all the water infiltration modules in sequence and are connected to each water infiltration groove.

[0009] As a preferred, the model box is an open-top box, the corners of the box are provided with an aluminum alloy frame, and the frame is closed by an acrylic plate to form the box.

[0010] Preferably, the water storage tank is supported on a support platform.

[0011] More preferably, the support platform is a cubic steel frame welded by aluminum alloy frames.

[0012] Preferably, the water infiltration modules are four, arranged in sequence from bottom to top along the slope surface, the upper water infiltration module of adjacent water infiltration modules is supported on the lower water infiltration module, and the lowermost water infiltration module is clamped in a groove formed by the front edge sliding surface platform and the sliding bed foundation.

[0013] More preferably, the top of the water infiltration groove support of each water infiltration module is provided with four installation openings at equal intervals along the slope surface, and each installation opening is embedded with a water infiltration groove, and the top of the water infiltration groove is flush with the top of the water infiltration groove support.

[0014] Further, each water infiltration groove is formed by acrylic plates cemented together, and the bottom of the water infiltration groove is provided with three water inlet holes distributed at equal intervals, the water inlet holes are arranged at the middle position of the bottom of the water infiltration groove along the extension direction of the water infiltration groove, and the water inlet holes are connected with corresponding PVC water pipes through corresponding small holes of the water infiltration groove support.

[0015] Further, the PVC water pipes and the small holes are one-to-one corresponding, and each PVC water pipe extends downward along the slope surface.

[0016] Specifically, the flow divider is a four-way flow divider, three water outlets of the four-way flow divider are one-to-one corresponding to the PVC water pipes, and the water outlets of the four-way flow divider are communicated with corresponding water inlet holes through corresponding PVC water pipes.

[0017] More specifically, the water storage tank is provided with 16 water outlets.

[0018] The beneficial effects of the utility model are as follows:

[0019] The device can infiltrate underground water from the bottom of the landslide, control the infiltration rate, simulate the change of underground water in the natural environment, and reveal the evolution law of landslide softening and sliding. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 is a three-dimensional schematic view of the utility model;

[0021] Fig. 2 is a side view of the utility model;

[0022] Fig. 3 is a top view of the utility model;

[0023] Fig. 4The utility model discloses a water seepage groove support three-dimensional view and three view of the utility model;

[0024] Fig. 5 The utility model discloses a water seepage groove and PVC water pipe connected schematic view of the utility model;

[0025] Fig. 6 The utility model discloses a water seepage groove, PVC water pipe and support splicing schematic view of the utility model;

[0026] In the drawing: 1, model box;2, frame;3, drainage hole;4, experimental simulation slope body;5, water seepage groove;6, water permeable stone;7, water seepage module;8, support platform;9, water storage tank;10, ball valve;11, flow rate regulator;12, flow divider;13, PVC water pipe;14, small hole. DETAILED DESCRIPTION

[0027] As follows, the embodiment is further described with reference to the drawings.

[0028] As Figs. 1-3 Indicated, as a preferred embodiment 1, a kind of adjustable sliding band softening's landslide physical model test device, including water seepage system and water supply system, water supply system supplies water to water seepage system;

[0029] The water seepage system includes transparent model box 1, model box 1 is equipped with experimental simulation slope body 4, the experimental simulation slope body 4 includes the sliding bed foundation and front edge sliding surface platform built with brick and concrete, and is pasted with concrete, to support water seepage system and landslide body, the front edge sliding surface platform is equipped with drainage hole 3 and penetrates model box 1 bottom, to drain excess moisture, the sliding bed foundation is equipped with several water seepage modules 7 along the slope and side by side, facilitate construction and disassembly maintenance;

[0030] Each water seepage module 7 includes water seepage groove support parallel to slope, and water seepage groove support top is equipped with several installation ports along slope equidistantly, and each installation port is embedded with corresponding transparent water seepage groove 5, and water seepage groove 5 is filled with several water permeable stones 6, and water permeable stone 6 can make water even and stably pass, form even and stable seepage flow, and water seepage groove support is composed of plank and batten, to support water seepage groove 5;

[0031] The water supply system comprises a transparent water storage tank 9, which is higher than the model box 1, and is uniformly provided with a plurality of water outlets near the water infiltration module 7, which is convenient for the water storage tank 9 to supply water to the water infiltration system. Each water outlet is connected with a corresponding flow rate regulator 11 through a ball valve 10, and the flow rate regulator 11 is used to adjust the water supply rate. Each flow rate regulator 11 is connected with a flow divider 12, and the other water outlet end of the flow divider 12 is connected with a corresponding PVC water pipe 13 in parallel. The PVC water pipe 13 sequentially passes through all the water infiltration modules 7 and is connected with each water infiltration tank 5, thereby realizing the water supply function of the water infiltration system.

[0032] As a preferred embodiment 2, the model box 1 is an open-top box, and the corners of the box body are provided with an aluminum alloy frame 2. The four sides and the bottom of the frame 2 are closed by an acrylic plate to form a box body, which ensures the strength of the box body and ensures the observability.

[0033] As a preferred embodiment 3, the water storage tank 9 is supported on the support platform 8.

[0034] The support platform 8 is a cubic steel frame welded by an aluminum alloy frame. The stability of the water storage tank 9 is ensured.

[0035] As shown in Figs. 4-6 As a preferred embodiment 4, the water infiltration module 7 is four, which are arranged from bottom to top along the slope surface. The upper water infiltration module 7 is supported on the lower water infiltration module 7 between adjacent water infiltration modules 7. The lowermost water infiltration module 7 is clamped in the groove formed by the front edge sliding surface platform and the sliding bed foundation, which is convenient for installation and disassembly, and ensures the distribution along the slope surface.

[0036] The top of the water infiltration tank support of each water infiltration module 7 is provided with four installation openings at equal intervals along the slope surface. Each installation opening is embedded with a water infiltration tank 5. The top of the water infiltration tank 5 is flush with the top of the water infiltration tank support, which is convenient for experimental observation and operation.

[0037] Each water infiltration tank 5 is formed by cementing an acrylic plate. The bottom of the water infiltration tank 5 is provided with three water inlet holes at equal intervals. The water inlet holes are arranged at the middle position of the bottom of the water infiltration tank 5 along the extension direction of the water infiltration tank 5. The water inlet holes are connected with corresponding PVC water pipes 13 after penetrating through corresponding small holes 14 of the water infiltration tank support, which is convenient for controlling the water flow of the water inlet holes of each water infiltration tank 5.

[0038] The PVC water pipe 13 corresponds to the small hole 14 one by one. Each PVC water pipe 13 extends downward along the slope surface.

[0039] The shunt 12 is a four-way shunt, three water outlets of the four-way shunt correspond to the PVC water pipes 13 one by one, the water outlet of the four-way shunt is communicated with the corresponding water inlet through the corresponding PVC water pipe 13, and the four-way shunt can divide the water flow into three parts and supply water to the three water inlets of the same water seepage groove 5.

[0040] The water storage tank 9 is provided with 16 water outlets corresponding to 16 water seepage grooves 5, and the same water outlet supplies water to the three water inlets of the same water seepage groove 5 after passing through the corresponding four-way shunt.

[0041] The working principle of the utility model is:

[0042] Before the test, the water storage tank 9 is filled with water, and the water level of the water storage tank 9 is kept consistent during the test;

[0043] The start and end of water supply to the corresponding water seepage groove 5 can be controlled by controlling the opening and closing of the ball valve 10 of the water outlet of the water storage tank 9;

[0044] The water supply rate to the corresponding water seepage groove 5 can be controlled by controlling the flow rate regulator 11;

[0045] The shunt 12 makes the corresponding flow rate regulator 11 supply water to the corresponding water seepage groove 5 uniformly;

[0046] The water seepage groove 5 supplies water from bottom to top, the water passes through the water-permeable stone 6 uniformly and stably, forms uniform and stable seepage flow, and seeps into the sliding zone and sliding body of the landslide model from bottom to top;

[0047] The excess water overflowing from the sliding body is discharged from the test device through the drainage hole 3, so as to prevent the landslide slope surface from being eroded by accumulated water.

[0048] Through the above steps, the change of underground water in the natural environment can be simulated, the seepage process of landslide rock-soil mass under the action of periodic change of reservoir water level can be studied, and the influence of dynamic water boundary condition on the stable state of landslide can be simulated.

Claims

1. A landslide physical model test device with adjustable slip zone softening, characterized in that, It includes a seepage system and a water supply system, with the water supply system supplying water to the seepage system; The seepage system includes a transparent model box (1), and an experimental simulated slope (4) is provided inside the model box (1). The experimental simulated slope (4) includes a slide bed foundation made of bricks and concrete and a front sliding surface platform. A drainage hole (3) is provided on the front sliding surface platform, penetrating the bottom of the model box (1). Several seepage modules (7) are arranged side by side along the slope on the slide bed foundation. Each of the aforementioned seepage modules (7) includes a seepage trough support parallel to the slope. Several installation openings are provided at equal intervals along the slope on the top of the seepage trough support. Each installation opening is fitted with a corresponding transparent seepage trough (5). The seepage trough (5) is filled with several permeable stones (6). The water supply system includes a transparent water storage tank (9), which is higher than the model box (1). The water storage tank (9) is evenly provided with several water outlets near the seepage module (7). Each water outlet is connected to the corresponding flow rate regulator (11) through a ball valve (10). Each flow rate regulator (11) is connected to a diverter (12). The other water outlets of the diverter (12) are connected in parallel with the corresponding PVC water pipes (13). The PVC water pipes (13) pass through all the seepage modules (7) in sequence and are connected to each seepage tank (5).

2. The landslide physical model test device with adjustable slip zone softening according to claim 1, characterized in that, The model box (1) is a box with an open top. The corners of the box are made of an aluminum alloy frame (2). The frame (2) is closed around the sides and bottom with acrylic sheets to form the box.

3. The landslide physical model test device with adjustable slip zone softening according to claim 1, characterized in that, The water storage tank (9) is supported on the support platform (8).

4. The landslide physical model test device with adjustable slip zone softening according to claim 3, characterized in that, The support platform (8) is a cubic steel frame welded from aluminum alloy steel frames.

5. The landslide physical model test device with adjustable slip zone softening according to claim 1, characterized in that, There are four seepage modules (7), which are arranged from bottom to top along the slope. The seepage module (7) located on the upper side of the adjacent seepage modules (7) is supported by the seepage module (7) located on the lower side. The seepage module (7) at the bottom is engaged in the groove formed by the front edge sliding platform and the sliding bed foundation.

6. The landslide physical model test device with adjustable slip zone softening according to claim 5, characterized in that, Each of the seepage modules (7) has four installation ports at equal intervals along the slope at the top of the seepage tank support. Each installation port is fitted with a seepage tank (5), and the top of the seepage tank (5) is flush with the top of the seepage tank support.

7. The landslide physical model test device with adjustable slip zone softening according to claim 6, characterized in that, Each of the aforementioned seepage troughs (5) is formed by bonding acrylic sheets. The bottom of each seepage trough (5) is provided with three equally spaced water inlets. The water inlets are arranged in the middle position at the bottom of the seepage trough (5) along the extension direction of the seepage trough (5). The water inlets pass through the corresponding small holes (14) on the seepage trough support and are connected to the corresponding PVC water pipes (13).

8. The landslide physical model test device with adjustable slip zone softening according to claim 7, characterized in that, The PVC water pipes (13) correspond one-to-one with the small holes (14), and each PVC water pipe (13) extends downward along the slope.

9. The landslide physical model test device with adjustable slip zone softening according to claim 8, characterized in that, The diverter (12) is a four-way diverter. The three outlets of the four-way diverter correspond one-to-one with the PVC water pipes (13). The outlets of the four-way diverter are connected to the corresponding inlet holes through the corresponding PVC water pipes (13).

10. The landslide physical model test device with adjustable slip zone softening according to claim 9, characterized in that, The water storage tank (9) has 16 water outlets.

Images