Simulation test device for dry-wet cycle of side slope

Abstract

The utility model discloses a side slope dry-wet cycle simulation test device, which comprises a test box, a drying fan, a plurality of spray pipes, a penetrometer, a vertical component, a water inlet pipe, a water outlet pipe, a water inlet pipe, a water outlet pipe, a water outlet pipe, a water outlet pipe, a water outlet pipe and a water outlet pipe, wherein the test box is internally provided with a metering component and a vertical component respectively; the metering assembly comprises a powerful suction cup, a supporting plate, a metering plate, scale values, an embedded strip, an attaching block and a pointer, the displacement distance of the penetrometer is worked out according to the pointing condition of the pointer and the scale values, the powerful suction cup is moved downwards, pressure is continuously applied, the internal pressure intensity of the powerful suction cup is increased, the powerful suction cup is adsorbed to the surface of the stacking table, and the firmness of the attaching frame is enhanced; the penetrometer is limited in the wrapping ring, so that the problems that contact and friction are generated between the probe rod and one side of the hole wall during inclined penetration, the penetration resistance of the penetrometer affects the soil body strength measurement result, and the measured data after the dry-wet cycle is not accurate enough are solved.

Description

Technical Field

[0001] This utility model relates to the field of slope wet-dry cycle simulation technology, and in particular to a slope wet-dry cycle simulation test device. Background Technology

[0002] The slope wet-dry cycle simulation test device is a special equipment used to study the performance degradation law of soil and rock masses (especially slope soil) under repeated drying and wetting conditions. Wet-dry cycles are a key factor leading to cracks, strength reduction, and eventually shallow landslides in slopes. The device is equipped with a box for reshaping slope soil samples and a rainfall and drying system to simulate the process of soil samples being subjected to wet-dry cycles.

[0003] After slope soil samples are subjected to rainfall and drying processes, a penetrometer is used to measure the penetration resistance of the soil, thereby quickly and easily assessing its strength, stiffness, and density. By manually inserting the penetrometer into the slope soil sample, the device is prone to tilting because there are no supporting components for the penetrometer. The penetrometer probe will come into contact with and rub against one side of the borehole wall. The penetrometer consumes energy to overcome this additional sidewall friction, resulting in a mixed and erroneous data of strength and additional friction loss. As a result, the slope soil sample strength test is not accurate enough, and the insertion depth of the penetrometer cannot be directly calculated, wasting time. Utility Model Content

[0004] The purpose of this invention is to provide a slope wet-dry cycle simulation test device to solve the problem mentioned in the background art that the position of the penetrometer is easily tilted, the penetrometer probe will contact and rub against one side of the hole wall, and the penetrometer will consume energy to overcome this additional side wall friction, resulting in mixed erroneous data of strength and additional friction loss.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a slope wet-dry cycle simulation test device, comprising:

[0006] The test chamber contains a metering component and a vertical component.

[0007] A drying fan, which is located inside the metering component;

[0008] Spray pipes are located at the top inside the metering assembly, and there are several of them;

[0009] The penetrator is housed inside the metering assembly;

[0010] The measuring component includes a powerful suction cup, a support plate, a measuring plate, a scale value, an embedding strip, a bonding block, and a pointer. The bonding block can move the pointer by moving up and down at one end of the embedding strip, and the displacement distance of the penetrator can be calculated by the pointing of the pointer and the scale value.

[0011] The vertical component includes an extension bar, a wrapping ring, a insertion slot, an abutment ring, and an insertion block. The abutment ring, through the engagement of the insertion block and the insertion slot, limits the movement of the wrapping ring and the penetrator.

[0012] As a preferred embodiment of this utility model, the test chamber is provided with a stacking platform inside, and a support bar is provided inside the test chamber. A fixing rod is provided at one end of the support bar, and a protruding strip is engaged at one end of the fixing rod.

[0013] As a preferred embodiment of this utility model, a vertical rod is sleeved on one end of the protrusion, the powerful suction cup is movably sleeved on one end of the vertical rod, and one side of the support plate is fixedly connected to the other end of the protrusion.

[0014] As a preferred embodiment of this utility model, one side of the measuring plate is fixedly connected to one side of the support plate, the scale value is opened on the surface of the measuring plate, and a bonding frame is fixedly installed on the other side of the measuring plate.

[0015] As a preferred embodiment of this utility model, the embedding strip is installed inside the bonding frame, the bonding block is movably sleeved with one end of the embedding strip, and the pointer is located on one side of the bonding block.

[0016] As a preferred embodiment of this utility model, one end of the extension strip is fixedly connected to the other side of the bonding block, one side of the wrapping ring is fixedly connected to the other end of the extension strip, the insertion groove is opened at the top of the wrapping ring, and the abutment ring is sleeved on the outside of the penetrator.

[0017] In a preferred embodiment of this invention, the plug block is disposed at the bottom of the abutment ring, and the plug slot and the plug block are engaged and connected.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This invention incorporates a fixed rod, a protruding strip, a powerful suction cup, an embedding strip, a bonding block, a scale, and a pointer. One end of the protruding strip is embedded into one end of the fixed rod, creating a locking mechanism that limits the bonding frame to that end. Moving the powerful suction cup downwards allows its bottom surface to adhere to the surface of the accumulation platform. Continued pressure increases the internal pressure of the suction cup, further enhancing its adhesion to the platform surface and strengthening the bonding frame. At this point, the penetrometer is contained within the enclosing ring and vertically inserted into the slope soil sample. As the penetrometer rises and falls, it causes the bonding block to move up and down at one end of the embedding strip. Simultaneously, the pointer moves to one side of the scale. By analyzing the pointer's movement, the distance the penetrometer has traveled can be calculated. This allows for the calculation of the depth to which the penetrometer is inserted into the soil. The vertical insertion of the penetrometer ensures that the surrounding soil is subjected to uniform compression and shearing, thus solving the problem of contact and friction between the probe and one side of the borehole wall during inclined penetration. This causes the penetrometer to experience penetration resistance, which in turn affects the results of soil strength measurement and makes the data measured after wet-dry cycles inaccurate.

[0020] This invention features a wrapping ring, a insertion slot, an abutment ring, and an insertion block. When the penetrator is aligned with the wrapping ring and inserted, the insertion block is positioned directly above the insertion slot. The abutment ring is then pushed downwards, causing the insertion block to gradually embed into the insertion slot. Subsequently, the two engage to limit and fix the wrapping ring and the penetrator. The engagement of the protrusion and the fixing rod facilitates the removal of the bonding frame from inside the test chamber. Attached Figure Description

[0021] Figure 1 is a front view of the structure of this utility model;

[0022] Figure 2 is a partial front view of the structure of this utility model;

[0023] Figure 3 shows the present invention. Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 is a partial bottom view of the structure of this utility model.

[0025] In the diagram: 100, Test chamber; 200, Drying fan; 300, Spray pipe; 400, Stacking platform; 500, Penetrator; 1, Measuring assembly; 2, Vertical assembly; 101, Support bar; 102, Fixing rod; 103, Protruding strip; 104, Vertical rod; 105, Strong suction cup; 106, Support plate; 107, Measuring plate; 108, Scale value; 109, Bonding frame; 110, Embedding strip; 111, Bonding block; 112, Pointer; 201, Extension strip;

[0026] 202. Enclosing ring; 203. Insertion groove; 204. Abutment ring; 205. Insertion block. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please refer to Figure 1- Figure 4 This utility model provides a technical solution for a slope wet-dry cycle simulation test device: Example 1:

[0029] As shown in Figures 1 and 2, and Figure 3 As shown, a slope wet-dry cycle simulation test device includes:

[0030] The test chamber 100 is equipped with a metering component 1 and a vertical component 2.

[0031] A drying fan 200 is disposed inside the metering component 1;

[0032] Spray pipes 300 are installed at the top inside the metering component 1, and there are several of them;

[0033] The penetrator 500 is housed inside the metering assembly 1;

[0034] The measuring component 1 includes a powerful suction cup 105, a support plate 106, a measuring plate 107, a scale value 108, an insert strip 110, an adhesive block 111, and a pointer 112. The adhesive block 111 can move the pointer 112 by moving up and down at one end of the insert strip 110, and the displacement distance of the penetrator 500 can be calculated by the pointing of the pointer 112 and the scale value 108.

[0035] The vertical component 2 includes an extension bar 201, a wrapping ring 202, a insertion groove 203, an abutment ring 204, and an insertion block 205. The abutment ring 204, through the engagement of the insertion block 205 and the insertion groove 203, limits the wrapping ring 202 and the penetrometer 500. A vertical rod 104 is sleeved on one end of the protrusion 103, and a powerful suction cup 105 is movably sleeved on one end of the vertical rod 104. One side of the support plate 106 is fixedly connected to the other end of the protrusion 103. The distance of the penetrometer 500's rise and fall is calculated by the data from the forward and backward movement of the pointer 112, which also allows for the calculation of the depth of the penetrometer 500 inserted into the soil. The vertical insertion of the penetrometer 500 ensures that the surrounding soil is subjected to uniform compression and shear, solving the problem of contact and friction between the probe and one side of the borehole wall during inclined penetration. Penetration resistance will affect the results of soil strength measurements, which in turn will make the data measured after wet-dry cycles inaccurate. Example 2:

[0036] Based on Example 1, as shown in Figure 1 and Figure 4 As shown, the embedding strip 110 is installed inside the bonding frame 109. The bonding block 111 is movably sleeved with one end of the embedding strip 110. The pointer 112 is set on one side of the bonding block 111. One end of the extension strip 201 is fixedly connected to the other side of the bonding block 111. One side of the wrapping ring 202 is fixedly connected to the other end of the extension strip 201. The insertion groove 203 is opened at the top of the wrapping ring 202. The abutment ring 204 is sleeved on the outside of the penetrator 500. The penetrator 500 is aligned with the wrapping ring 202 and inserted. At this time, the insertion block 205 is located directly above the insertion groove 203. The abutment ring 204 is pushed down to make the insertion block 205 gradually embedded into the insertion groove 203. Then the two are engaged and connected, which can limit and fix the wrapping ring 202 and the penetrator 500.

[0037] Working Principle: The slope wet-dry cycle simulation test device is a specialized device used to study the performance degradation of soil and rock masses, especially slope soil, under repeated drying and wetting conditions. Wet-dry cycles are a key factor leading to slope cracking, strength reduction, and ultimately shallow landslides. The device includes a housing for reshaping slope soil samples and a rainfall and drying system to simulate the wet-dry cycle process. After the slope soil samples undergo rainfall and drying, a penetrometer is used to measure the penetration resistance of the soil, thereby quickly and easily assessing its strength, stiffness, and density. The penetrometer is manually inserted into the slope soil sample. Because the device lacks supporting components for the penetrometer, its position is prone to tilting. The penetrometer probe will contact and rub against one side of the borehole wall. The penetrometer consumes energy overcoming this additional sidewall friction, resulting in mixed erroneous data of strength and additional friction loss. Therefore, the slope soil sample strength test is not accurate, and the insertion depth of the penetrometer cannot be directly calculated, wasting time. (The last sentence appears to be incomplete and possibly refers to a separate issue: "103 convex strip...") One end of the fitting is embedded into one end of the fixing rod 102, and the two engage, thus limiting the fitting frame 109 to one end of the fixing rod 102. The powerful suction cup 105 is moved downwards so that its bottom surface is in contact with the surface of the accumulation platform 400. With continued pressure, the internal pressure of the powerful suction cup 105 increases, adhering to the surface of the accumulation platform 400, enhancing the firmness of the fitting frame 109. At this time, the penetrator 500 is limited in the wrapping ring 202 and is vertically inserted into the slope soil sample. As the penetrator 500 rises and falls,

[0038] The insertion block 111 moves up and down at one end of the embedding strip 110. At this time, the pointer 112 moves to one side of the scale value 108. The distance the penetrometer 500 moves up and down is calculated based on the data from the forward and backward movement of the pointer 112, thus calculating the depth of the penetrometer 500 inserted into the soil. The vertical insertion of the penetrometer 500 ensures uniform compression and shearing of the surrounding soil, solving the problem of contact and friction between the probe and the borehole wall during inclined insertion. This prevents the penetrometer 500 from experiencing penetration resistance, which would affect the soil strength measurement results and consequently make the data measured after wet-dry cycles inaccurate. The penetrometer 500 is then aligned with the wrapping ring 202 and inserted. At this time, the insertion block 205 is directly above the insertion groove 203. The abutment ring 204 is pushed downwards, causing the insertion block 205 to gradually embed into the insertion groove 203. The two then engage, thus connecting the wrapping ring 202 and the penetrometer 500. The protrusion 103 engages with the fixing rod 102 to limit and fix the position, making it easy to remove the bonding frame 109 from inside the test chamber 100.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for simulating a wetting-drying cycle of a slope, characterized by, The utility model relates to a kind of test box and vertical assembly of metering assembly, it is characterized by: test box (100) is provided with metering assembly (1) and vertical assembly (2) respectively inside;Oven drying fan (200) is arranged in the inside of metering assembly (1);Spray pipe (300) is arranged at the top inside metering assembly (1), and the number is several;Penetrometer (500) is placed in the inside of metering assembly (1);The metering assembly (1) includes strong suction cup (105), support plate (106), metering plate (107), scale value (108), embedded strip (110), fitting block (111) and pointer (112), fitting block (111) can drive pointer (112) to move in the up-and-down activity on the end of embedded strip (110), and the displacement distance of penetrometer (500) is calculated by the pointing condition of pointer (112) and scale value (108);The vertical assembly (2) includes extension bar (201), wrapping ring (202), plug-in slot (203), abutment ring (204) and plug-in block (205), and the abutment ring (204) is clamped by plug-in block (205) and plug-in slot (203), to realize the limiting of wrapping ring (202) and penetrometer (500). The inside of the test box (100) is provided with accumulation table (400), the inside of the test box (100) is provided with support strip (101), one end of the support strip (101) is provided with fixed rod (102), one end of the fixed rod (102) is clamped and installed with convex strip (103). One end of the convex strip (103) is sleeved with vertical rod (104), the strong suction cup (105) is movably sleeved at one end of the vertical rod (104), one side of the support plate (106) is fixedly connected with the other end of the convex strip (103). One side of the metering plate (107) is fixedly connected with one side of the support plate (106), the scale value (108) is opened on the surface of the metering plate (107), and the other side of the metering plate (107) is fixedly installed with fitting frame (109). The embedded strip (110) is installed in the inside of the fitting frame (109), the fitting block (111) is movably sleeved with one end of the embedded strip (110), and the pointer (112) is arranged on one side of the fitting block (111). One end of the extension bar (201) is fixedly connected with the other side of the fitting block (111), one side of the wrapping ring (202) is fixedly connected with the other end of the extension bar (201), the plug-in slot (203) is opened at the top of the wrapping ring (202), and the abutment ring (204) is sleeved outside the penetrometer (500). The plug-in block (205) is arranged at the bottom of the abutment ring (204), and the plug-in slot (203) and the plug-in block (205) are clamped and connected. 2.The slope dry-wet cycle simulation test device according to claim 1, characterized in that: ​ 3.The slope dry-wet cycle simulation test device according to claim 2, characterized in that: ​ 4. The device for simulating the dry-wet cycle of a slope according to claim 3, characterized in that: ​ 5. The device for simulating the dry-wet cycle of a slope according to claim 4, characterized in that: ​ 6.The slope dry-wet cycle simulation test device according to claim 1, characterized in that: ​ 7. The device for simulating the dry-wet cycle of a slope according to claim 6, characterized in that: ​

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