Soil body compactness and relative compactness controller in transparent soil test model box and using method thereof
By using a controller in the transparent soil test model box, including the upper top plate, the lower bottom plate, the limit screw and the level bubble, the problem of inaccurate control of compaction and relative compaction in the manual flattening method is solved, and the highly controllable and precise control of the compaction and relative compaction of the soil in the transparent soil model test is achieved.
Patent Information
- Application Number
- CN202411658166.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-02-28
AI Technical Summary
In the transparent soil model test in the prior art, manual flattening method leads to inaccurate control of compaction and relative compactness, the surface of the soil is not horizontal, and impurities may be introduced and pollution may be caused.
A controller for compaction and relative compactness in the transparent soil test model box is provided, including the upper top plate, the lower bottom plate, the limit screw and the level bubble. The overall lifting and lowering are controlled by screwing the limit screw, and the load reaction force and the level bubble are finely adjusted to ensure the horizontal state of the controller and achieve a highly controllable soil compaction and relative compactness.
The transparent soil compaction and relative compactness are highly controllable, and errors and pollution problems in manual flattening methods are avoided, and accurate test data is provided for transparent soil model testing.
Smart Images
Figure CN119534803A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of controlling the compaction degree and relative density of particles in a model box of a model test, and in particular to a controller for the compaction degree and relative density of soil in a transparent soil test model box and a method for using the controller. Background Art
[0002] Transparent soil model tests are widely used. Through transparent soil model tests, researchers can intuitively simulate and observe the behavior of soil under different stress and deformation conditions. This experimental method provides a unique experimental means for fields such as underground engineering, earthquake engineering, and foundation design, allowing researchers to gain an in-depth understanding of the deformation characteristics, stress distribution, and interactions of soil. During transparent soil model tests, it is often necessary to manually control the compaction or relative density of the transparent soil, but manual tamping is usually used directly, which results in inaccurate compaction control, an uneven soil surface, and possible impurities and contamination of the transparent soil and mixed liquid. Using reaction force to achieve highly controllable compaction and relative density of transparent soil is an important technology to ensure the accuracy of test data, but no reasonable solution has yet been proposed. Summary of the invention
[0003] The present application provides a soil compaction and relative density controller in a transparent soil test model box and a method for using the same, so as to achieve highly controllable compaction and relative density of the transparent soil, solve the problems of large compaction and relative density control errors, soil surface tilt, introduction of impurities and pollution caused by the commonly used manual tamping method, and provide a guarantee for obtaining accurate test data for transparent soil model tests.
[0004] In the first aspect, the present application provides a soil compaction and relative density controller in a transparent soil test model box, comprising an upper top plate and a lower bottom plate, the top plate having a plan view coverage area larger than the top view coverage area of the lower bottom plate, the upper top plate being connected to a loading box, a level bubble being arranged on the upper top plate, a plurality of limit screws being arranged on the upper top plate, a scale being arranged on the limit screws, the limit screws being arranged to control the lifting and lowering of the overall controller by turning, at least two rectangular columns being connected to the lower surface of the upper top plate, the bottom of the rectangular columns being connected to the lower bottom plate, a plurality of filter holes being arranged on the lower bottom plate, the four sides of the lower bottom plate being able to stick to the inner wall of the transparent soil test model box and extend into the model box, and a composite filter being connected to the lower surface of the lower bottom plate.
[0005] Preferably, the lower bottom circular plate of the limit screw is passively restricted and placed on the edge of the top of the side plate of the transparent soil test model box. The limit screws are provided in four numbers, and the four limit screws are respectively located at the four corners of the upper top plate, so that the overall controller can be raised and lowered by screwing the upper top circular plate of the limit screw, and the screw rods of the limit screws are printed with scales.
[0006] Preferably, the stacking box is located in the middle of the upper surface of the upper top plate, and is used to increase the magnitude of the reaction force by adding heavy objects.
[0007] Preferably, the upper top plate, rectangular column and lower bottom plate form an integral skeleton, and during operation, the upper top plate does not sink below the liquid surface.
[0008] In a second aspect, the present application provides a method for using a soil compaction degree or relative density controller in a transparent soil test model box as described in the first aspect, comprising the following steps:
[0009] Step 1: During the transparent soil test design phase, the target compaction degree or target relative density of the transparent soil is determined according to the expected purpose of the test;
[0010] Step 2: During the transparent soil test, determine and weigh the mass of transparent soil added to the transparent soil test model box;
[0011] Step 3: According to the determined transparent soil target compaction degree or target relative density, the overall pressing depth of the controller is deduced from the geometric dimensions of the model box and a one-to-one calibration relationship is established;
[0012] Step 4: Place the transparent soil test model box horizontally, and place the bottom circular plates of the plurality of limit screws on the edge of the top of the side plates of the transparent soil test model box; perform initial 0 scale leveling;
[0013] Step 5: Load heavy objects into the controller's loading box; use the reaction force of the load to roughly adjust the controller's pressing depth by screwing the limit screw with scale;
[0014] Step 6. Observe the level bubble on the top plate and fine-tune the controller to the target downward pressure depth. Keep the controller in a horizontal state for a period of time to stabilize the compaction value.
[0015] Preferably, in step three, the overall pressing depth of the controller is deduced from the geometric dimensions of the model box according to the determined target compaction degree or target relative density of the transparent soil, and a one-to-one calibrated relationship is established as the relationship between the overall pressing depth of the controller and the target compaction degree or the relationship between the overall pressing depth of the controller and the target relative density.
[0016] Preferably, the relationship between the overall pressing depth of the controller and the target compaction degree is:
[0017]
[0018] Wherein, h represents the overall pressing depth of the controller, h0 represents the height of the bottom surface of the lower base plate after the known initial 0 scale is leveled, M represents the mass of transparent soil added to the transparent soil test model box during the transparent soil test, ρ represents the target compaction degree, γ1 represents the known maximum dry density of transparent soil, L1 represents the length of the transparent soil test model box, and L2 represents the width of the transparent soil test model box.
[0019] Preferably, the relationship between the overall pressing depth of the controller and the target relative density is:
[0020]
[0021] Wherein, h represents the overall pressing depth of the controller, h0 represents the height of the bottom surface of the lower base plate after the known initial 0 scale is leveled, M represents the mass of transparent soil added to the transparent soil test model box during the transparent soil test, D represents the target relative density, γ1 represents the known maximum dry density of transparent soil, γ2 represents the known minimum dry density of transparent soil, L1 represents the length of the transparent soil test model box, and L2 represents the width of the transparent soil test model box.
[0022] Preferably, in step 4, performing initial 0-scale leveling includes:
[0023] Place the transparent soil test model box on a horizontal table;
[0024] Place multiple limit screws of the controller at the edge of the top of the side plate of the transparent soil test model;
[0025] Screw the upper circular plate of the multiple limit screws to the 0 scale position;
[0026] Observe the position of the spirit level and adjust the tabletop to a horizontal state.
[0027] Preferably, in step five, the depression depth of the controller is roughly adjusted by screwing a limit screw with a scale, including: lowering the upper dome plate of the plurality of limit screws to the determined overall depression depth of the controller.
[0028] The present application provides a controller for soil compaction and relative density in a transparent soil test model box and a method for using the controller, which involves a core algorithm and a conversion relationship between the overall downward pressure depth of the controller and the target compaction and target relative density, and provides an initial 0 scale leveling method, which utilizes the reaction force of the pile load to achieve highly controllable compaction of the soil in the transparent soil model test model. The controller is equipped with a level bubble and 4 limit screws with scales, which can be operated to keep the table top on which the model box is placed horizontal and the controller horizontal; the part of the controller submerged below the liquid surface is made of stainless steel, which avoids the introduction of impurities and pollution in the process of adjusting the compaction of the transparent soil. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.
[0030] Figure 1 A schematic diagram of the structure of a soil compaction and relative density controller in a transparent soil test model box provided in an embodiment of the present application;
[0031] Figure 2 A schematic diagram of a limit screw in a soil compaction and relative density controller in a transparent soil test model box provided in an embodiment of the present application;
[0032] Figure 3 A partial structural schematic diagram of a soil compaction and relative density controller in a transparent soil test model box provided in an embodiment of the present application;
[0033] Figure 4 A schematic diagram of a rectangular column in a soil compaction and relative density controller in a transparent soil test model box provided in an embodiment of the present application;
[0034] Figure 5 A schematic diagram of a rectangular column in a soil compaction and relative density controller in a transparent soil test model box provided in an embodiment of the present application;
[0035] Figure 6 A schematic diagram of a composite filter in a soil compaction and relative density controller in a transparent soil test model box provided in an embodiment of the present application.
[0036] Description of reference numerals:
[0037] 1. Stacking box; 2. Limit screws; 3. Level bubble; 4. Upper plate; 5. Rectangular column; 6. Filter hole; 7. Lower plate; 8. Composite filter; 9. Upper circular plate; 10. Lower circular plate; 11. Screw; 12. Scale; 13. Composite structure.
[0038] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION
[0039] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.
[0040] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.
[0041] The present application embodiment provides a soil compaction degree and relative density controller in a transparent soil test model box, such as Figures 1 to 6 As shown, the controller includes an upper top plate 4 and a lower bottom plate 7, the top view coverage area of the upper top plate 4 is larger than the top view coverage area of the lower bottom plate 7, the upper top plate 4 is connected to a stacking box 1, a level bubble 3 is provided on the upper top plate 4, four limit screws 2 are provided on the upper top plate 4, a scale 12 is provided on the limit screws 2, four rectangular columns 5 are connected around the lower surface of the upper top plate 4, the bottom plates of the four rectangular columns 5 are connected to the lower bottom plate 7, a plurality of filter holes 6 are provided on the lower bottom plate 7, a composite filter screen 8 is connected to the lower surface of the lower bottom plate, and the lower bottom plate 7 can be attached to the inner wall of the transparent soil test model box and extend into the model box.
[0042] It should be noted that the upper plate 4, the lower plate 5 and the rectangular column 6 mentioned in this embodiment can all be made of stainless steel. It is understandable that the material selection of the upper plate 4, the lower plate 5 and the rectangular column 6 is only an example and is not a limitation of the present application. At the same time, the number of rectangular columns and limit screws is only an example. The number of rectangular columns and limit screws in specific implementation includes but is not limited to the following: Figure 1 Four shown.
[0043] In some embodiments, see Figure 2 The stacking box 1 is composed of four plates, and the stacking box 1 is vertically connected to the upper surface of the upper top plate 4. Heavy objects can be loaded into the stacking box 1.
[0044] In some embodiments, see Figure 2 A level bubble 3 is provided on the upper surface of the upper top plate 4, and the level bubble 3 can determine the horizontal state of the entire controller.
[0045] In some embodiments, see Figure 2 and Figure 3There are four limit screws 2 in total, and the four limit screws 2 are symmetrically and vertically distributed at the four corners of the upper top plate 4. The screw holes corresponding to the four limit screws are equidistant from the two right-angled sides of the corners. The four limit screws 2 have the same size. The limit screws 2 include an upper circular plate 9, a screw rod 11 and a lower circular plate 10, wherein the screw rod 11 is engraved with a scale to form a scale 12.
[0046] In some embodiments, see Figure 4 There are four rectangular columns 5 in total, and the four rectangular columns 5 have the same size. The four rectangular columns are vertically connected to the upper top plate 4 and the lower bottom plate 7, and the vertical connection positions are symmetrically distributed at the four corners.
[0047] In some embodiments, see Figure 5 and Figure 6 The lower bottom plate 4 is provided with filter holes 6, the lower bottom surface of the lower bottom plate 7 is connected to the composite filter screen 8, and the composite structure 13 composed of the lower bottom plate 7 and the composite filter screen 8 can isolate the solid and filter the liquid.
[0048] The present application also provides a method for using a soil compaction and relative density controller in a transparent soil test model box. The structure of the soil compaction and relative density controller in the transparent soil test model box can be found in Figures 1 to 6 The method of use includes steps S1 to S6, which are described in detail as follows.
[0049] Step S1: During the transparent soil test design phase, the target compaction degree or target relative density of the transparent soil is determined in advance according to the expected purpose of the test.
[0050] Step S2: during the transparent soil test, determining and weighing the mass of the transparent soil added to the transparent soil test model box;
[0051] Step S3, according to the determined transparent soil target compaction degree or target relative density, the depth that the controller needs to press down as a whole is deduced from the geometric dimensions of the model box and a one-to-one calibration relationship is established;
[0052] Step S4, place the transparent soil test model box on a horizontal table, place the bottom circular plate 10 of the four limit screws 2 on the edge of the top of the side plate of the transparent soil test model box, and perform initial 0 scale leveling.
[0053] Step S5, stacking heavy objects into the stacking box 1 of the controller; using the reaction force of the stacking, roughly adjust the pressing depth of the controller by screwing the limit screw 2 with scale;
[0054] Step S6, observe the level bubble 3 on the upper top plate 4 and fine-tune the controller to the target pressing depth, while keeping the controller in a horizontal state, and keep the state for a period of time to stabilize the compaction value.
[0055] In some embodiments, the relationship between the target compaction degree and the overall pressing depth of the controller is established based on the transparent soil model box size parameters, the soil mass in the model box, and the maximum dry density parameters:
[0056]
[0057] Wherein, h represents the overall pressing depth of the controller, h0 represents the height of the bottom surface of the bottom plate of the controller after the known initial 0 scale is leveled, M represents the mass of transparent soil added to the transparent soil test model box during the transparent soil test, ρ represents the target compaction degree, γ1 represents the known maximum dry density of transparent soil, L1 represents the length of the transparent soil test model box, and L2 represents the width of the transparent soil test model box.
[0058] In some embodiments, the target suggested by the transparent soil model box size parameters and the soil mass in the model box, the maximum dry density, and the minimum dry density parameters is the relationship between the relative density and the overall pressing depth of the controller:
[0059]
[0060] Where D represents the target relative density, and γ2 represents the known minimum dry density of transparent soil.
[0061] In some embodiments, in step S4, an initial zero-scale leveling is required before operating the controller, including the following steps:
[0062] Step S41, placing the transparent soil test model box on a horizontal table;
[0063] Step S42, placing the four limit screws 2 of the controller at the edge position of the top of the side plate of the transparent soil test model;
[0064] Step S43, screwing the upper circular plates of the four limit screws 2 to the 0 scale position;
[0065] Step S44, observe the position of the level bubble 3 and adjust the desktop to a horizontal state.
[0066] The various embodiments or implementation methods in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced to each other.
[0067] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.
[0068] In general, terms should be understood, at least in part, by the context in which they are used. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending, at least in part, on the context. Similarly, terms such as "a," "an," or "the" may also be understood to convey singular usage or to convey plural usage, depending, at least in part, on the context.
[0069] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).
[0070] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.
[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A soil compaction and relative density controller in a transparent soil test model box, characterized in that: It includes an upper top plate and a lower bottom plate, the top view coverage area of the upper top plate is larger than the top view coverage area of the lower bottom plate, the upper top plate is connected to a loading box, a level bubble is arranged on the upper top plate, a plurality of limit screws are arranged on the upper top plate, a scale is arranged on the limit screws, the limit screws control the lifting and lowering of the overall controller by screwing, at least two rectangular columns are connected to the lower surface of the upper top plate, the bottom of the rectangular columns is connected to the lower bottom plate, a plurality of filter holes are arranged on the lower bottom plate, the four sides of the lower bottom plate can be attached to the inner wall of the transparent soil test model box and extend into the model box, and a composite filter is connected to the lower surface of the lower bottom plate.
2. The soil compaction and relative density controller in the transparent soil test model box according to claim 1, characterized in that: The lower bottom circular plate of the limit screw is passively restricted and placed on the edge of the top of the side plate of the transparent soil test model box. There are four limit screws, which are respectively located at the four corners of the upper top plate, so that the overall controller can be raised and lowered by screwing the upper top circular plate of the limit screw. The screws of the limit screws are all printed with scales.
3. The soil compaction and relative density controller in the transparent soil test model box according to claim 1, characterized in that: The stacking box is located in the middle of the upper surface of the upper top plate and is used to increase the magnitude of the reaction force by adding heavy objects.
4. The soil compaction and relative density controller in the transparent soil test model box according to claim 3, characterized in that: The upper top plate is connected to the lower bottom plate through four rectangular columns. The upper top plate, the four rectangular columns and the lower bottom plate constitute an overall skeleton. During operation, the upper top plate does not sink below the liquid surface.
5. A method for using a soil compaction degree or relative density controller in a transparent soil test model box according to any one of claims 1 to 4, characterized in that: The following steps are involved: Step 1: During the transparent soil test design phase, the target compaction degree or target relative density of the transparent soil is determined according to the expected purpose of the test; Step 2: During the transparent soil test, determine and weigh the mass of transparent soil added to the transparent soil test model box; Step 3: According to the determined transparent soil target compaction degree or target relative density, the overall pressing depth of the controller is deduced from the geometric dimensions of the model box and a one-to-one calibration relationship is established; Step 4: Place the transparent soil test model box horizontally, and place the bottom circular plates of the plurality of limit screws on the edge of the top of the side plates of the transparent soil test model box; perform initial 0 scale leveling; Step 5: Load heavy objects into the controller's loading box; use the reaction force of the load to roughly adjust the controller's pressing depth by screwing the limit screw with scale; Step 6. Observe the level bubble on the top plate and fine-tune the controller to the target downward pressure depth. Keep the controller in a horizontal state for a period of time to stabilize the compaction value.
6. The method of use according to claim 5, characterized in that: In the step three, according to the determined transparent soil target compaction or target relative density, the overall pressing depth of the controller is deduced from the geometric dimensions of the model box and a one-to-one calibration relationship is established as the relationship between the overall pressing depth of the controller and the target compaction or the relationship between the overall pressing depth of the controller and the target relative density.
7. The method of use according to claim 6, characterized in that: The relationship between the overall pressing depth of the controller and the target compaction degree is: Wherein, h represents the overall pressing depth of the controller, h0 represents the height of the bottom surface of the lower base plate after the known initial 0 scale is leveled, M represents the mass of transparent soil added to the transparent soil test model box during the transparent soil test, ρ represents the target compaction degree, γ1 represents the known maximum dry density of transparent soil, L1 represents the length of the transparent soil test model box, and L2 represents the width of the transparent soil test model box.
8. The method of use according to claim 6, characterized in that: The relationship between the overall pressing depth of the controller and the target relative density is: Wherein, h represents the overall pressing depth of the controller, h0 represents the height of the bottom surface of the lower base plate after the known initial 0 scale is leveled, M represents the mass of transparent soil added to the transparent soil test model box during the transparent soil test, D represents the target relative density, γ1 represents the known maximum dry density of transparent soil, γ2 represents the known minimum dry density of transparent soil, L1 represents the length of the transparent soil test model box, and L2 represents the width of the transparent soil test model box.
9. The method of use according to claim 5, characterized in that: In step 4, performing initial 0-scale leveling includes: Place the transparent soil test model box on a horizontal table; Place multiple limit screws of the controller at the edge of the top of the side plate of the transparent soil test model; Screw the upper circular plate of the multiple limit screws to the 0 scale position; Observe the position of the spirit level and adjust the tabletop to a horizontal state.
10. The method of use according to claim 5, characterized in that: In the step five, the pressing depth of the controller is roughly adjusted by screwing a limit screw with a scale, including: lowering the upper dome plate of the plurality of limit screws to the determined overall pressing depth of the controller.