Device for placing supporting structure in low-strength soft clay model test

Abstract

The utility model relates to a device for placing a supporting structure in a low-strength soft clay model test, which comprises a model box, a pile placing groove is embedded in the model box, a supporting structure is placed in the pile placing groove, and an auxiliary positioning mechanism for limiting and fixing the pile placing groove is further arranged in the model box. The auxiliary positioning mechanism comprises a side plate, two limiting plates, a driving assembly used for pushing the two limiting plates to move and two fixing assemblies used for fixing the pile placing groove, the side plate is fixedly arranged on one side of the top of the model box, and sliding grooves are formed in the two sides of the inner wall of the side plate. According to the utility model, a method of arranging the piles in a plane is adopted in the arrangement of the model box, the supporting structure is allowed to be placed and installed in a horizontal state, the installation process of the supporting structure is simplified, and the risks of deviation and deformation of the supporting structure caused by gravity and misoperation are reduced. And the positioning precision of the supporting structure in the soil sample can be improved by using the pile placing groove, and the common problem of position deviation in a traditional method is avoided.

Description

Technical Field

[0001] The utility model relates to the field of foundation pit engineering model tests, in particular to a device for placing a supporting structure in a low-strength soft clay model test. Background Art

[0002] In urban construction, the extensive development of underground space has led to the deepening and enlargement of foundation pit projects. However, especially in soft clay areas, foundation pit instability accidents are more frequent. Currently, due to the difficulty of on-site restoration and the limitations of numerical simulation, small-scale models are often used in foundation pit projects to simulate the actual situation in order to better understand the problem and solve practical engineering problems.

[0003] When conducting model tests, the traditional approach is usually to use upright pile placement to penetrate the support structure. However, due to the complexity of soil samples and the physical properties of the support structure, this method has some difficulties and limitations in actual operation, especially in low-strength soft clay model tests. The static pressure penetration process of upright pile placement is difficult and requires high precision control during the penetration process. This method can easily cause the support structure to shift during the penetration process, thereby affecting its final installation position and stability. In addition, especially for flexible support structures, the use of upright pile placement is also difficult to maintain its structural integrity and predetermined shape. These problems will not only affect the stability and effectiveness of the support structure itself, but may also lead to inaccurate test data, thereby affecting the reliability of the entire test results.

[0004] In view of these problems, it is more accurate and convenient to install the support structure by horizontal pile placement. This method allows the support structure to be placed and installed in a horizontal state, simplifies the installation process of the support structure, and reduces the risk of support structure displacement and deformation due to gravity and improper operation.

[0005] In order to facilitate the operation of laying piles horizontally, the present invention provides a novel device that can achieve accurate placement of support structures in model tests, providing better control and accuracy, so that the position and direction of the support structure can be more easily adjusted and confirmed before installation. Utility Model Content

[0006] The purpose of the utility model is to provide a device for placing a support structure in a low-strength soft clay model test, so as to solve the problem that when placing a support structure in a soft clay model test in the prior art, the support structure is penetrated by vertical piles, and the static pressure penetration process of the vertical piles is difficult, which can easily cause the support structure to deviate during the penetration process, thereby affecting its final installation position and stability.

[0007] In order to solve the above technical problems, the utility model specifically provides the following technical solutions:

[0008] A device for placing a support structure in a low-strength soft clay model test comprises a model box, a pile groove is embedded in the model box, a support structure is placed in the pile groove, and an auxiliary positioning mechanism for limiting and fixing the opposite pile groove is also provided in the model box. The auxiliary positioning mechanism comprises a side plate, two limit plates, a driving component for pushing the two limit plates to move, and two fixing components for fixing the opposite pile groove. The side plate is fixedly arranged on one side of the top of the model box, and sliding grooves are provided on both sides of the inner wall of the side plate. The two limit plates are symmetrically arranged on both sides of the side plate, and the two limit plates are respectively slidably connected to the two slide grooves. The driving component is arranged on the back of the side plate and is transmission-connected to the two limit plates, and the two fixing components are respectively arranged on the two limit plates.

[0009] As a preferred solution of the utility model, the inner contour of the pile groove is consistent with the outer dimension of the supporting structure.

[0010] As a preferred solution of the utility model, the first section of the pile-setting groove is located on the side of the frame of the model box, and the second section of the pile-setting groove is tightly fitted with the side wall of the supporting structure.

[0011] As a preferred solution of the utility model, an edge plate is arranged on the top of the pile-setting groove, the edge plate is arranged in a U shape, and a plurality of hook holes are evenly opened on the edge plate.

[0012] As a preferred solution of the utility model, the driving assembly includes a fixed plate and an adjusting screw, the adjusting screw is rotatably arranged on the back of the side plate, the fixed plate is threadedly connected to the adjusting screw, and the two sides of the fixed plate are respectively fixedly connected to two limit plates.

[0013] As a preferred solution of the utility model, springs are fixedly connected to both sides of the fixing plate, and one end of the spring away from the fixing plate is fixedly connected to the side plate.

[0014] As a preferred solution of the utility model, the fixing assembly includes a rotating plate and a positioning bolt, the rotating plate is rotatably arranged on the top of the limiting plate, the positioning bolt is threadedly connected to the rotating plate, and the positioning bolt matches the hook hole.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. Compared with the prior art, the installation process of the traditional underground support structure is cumbersome, especially when the pile body is penetrated into the soil sample. The layout of the model box adopts the planar pile method, allowing the support structure to be placed and installed in a horizontal state, simplifying the installation process of the support structure and reducing the risk of displacement and deformation of the support structure due to gravity and improper operation. In addition, the use of pile grooves can also improve the positioning accuracy of the support structure in the soil sample, avoiding the common position offset problem in traditional methods.

[0017] 2. The utility model adopts an auxiliary positioning mechanism to assist in positioning the placement of the pile groove, which can ensure that the pile groove is in a state of being vertically inserted into the soil when placed, avoiding displacement of the pile groove, thereby ensuring the stability of the placement of the pile groove and the accuracy of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of a device for placing a support structure in a low-strength soft clay model test of the utility model.

[0020] Figure 2 This is a schematic diagram of the connection structure between the model box and the pile groove of the utility model;

[0021] Figure 3 It is a schematic diagram of the explosion structure of the model box and the supporting structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the connection structure between the pile groove and the auxiliary positioning mechanism of the utility model;

[0023] Figure 5 For this utility model Figure 4 A magnified view of the structure at A;

[0024] Figure 6 It is a schematic diagram of the top-sectional structure of the auxiliary fixing mechanism of the utility model;

[0025] Figure 7 It is a schematic diagram of the side section structure of the auxiliary fixing mechanism of the utility model.

[0026] The reference numerals in the figure represent the following: 1, model box; 2, pile groove; 2-1, first section; 2-2, second section; 3, support structure; 4, auxiliary positioning mechanism; 5, side plate; 6, limit plate; 7, drive assembly; 8, fixing assembly; 9, edge plate; 10, hook hole;

[0027] 71. Fixed plate; 72. Adjusting screw; 73. Spring; 81. Rotating plate; 82. Positioning bolt. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] The following first describes the concepts involved in the present application in conjunction with the accompanying drawings. It should be noted that the following description of each concept is only to make the content of the present application easier to understand, and does not limit the scope of protection of the present application; at the same time, the embodiments and features in the embodiments of the present application can be combined with each other in the absence of conflict. The present application will be described in detail with reference to the accompanying drawings and in conjunction with the embodiments.

[0030] like Figure 1 - Figure 7 As shown, the utility model provides a device for placing a support structure in a low-strength soft clay model test, including a model box 1, a pile groove 2 is embedded in the model box 1, a support structure 3 is placed in the pile groove 2, and an auxiliary positioning mechanism 4 for limiting and fixing the opposite pile groove 2 is also provided in the model box 1. The auxiliary positioning mechanism 4 includes a side plate 5, two limit plates 6, a driving component 77 for pushing the two limit plates 6 to move, and two fixing components 8 for fixing the opposite pile groove 2. The side plate 5 is fixedly arranged on one side of the top of the model box 1, and slide grooves are provided on both sides of the inner wall of the side plate 5. The two limit plates 6 are symmetrically arranged on both sides of the side plate 5, and the two limit plates 6 are respectively slidably connected to the two slide grooves. The driving component 7 is arranged on the back of the side plate 5 and is transmission-connected to the two limit plates 6. The two fixing components 8 are respectively arranged on the two limit plates 6.

[0031] When the utility model is used, the pile slot 2 and the supporting structure 3 need to be placed first. After the soft clay is consolidated and the soft clay surface is leveled in the model box 1, the position of the supporting structure 3 is determined on the leveled soft clay plane, and then the pile slot 2 is carefully placed at the designated position in the soil sample. In order to ensure that the placement position of the pile slot 2 is vertical and stable, when placing the pile slot 2, the two limit plates 6 are driven out by the driving component 7, and then the pile slot 2 is placed in the soil sample after passing through the space between the two limit plates 6, and the pile slot 2 is fixed by two fixing components 8. In addition, the design of the pile slot 2 takes into account the size and shape of the supporting structure 3 to ensure that it can properly accommodate the supporting structure 3. Then, use a suitable tool to remove the soil in the pile slot 2, and place the supporting structure 3 in the empty pile slot 2 to ensure that it fits tightly with the wall of the pile slot 2.

[0032] After the support structure 3 is placed, the pile groove 2 needs to be removed and taken out by hooks and slings. This process requires precise operation to prevent disturbance of the consolidated soil, thereby avoiding affecting the stability of the support structure 3 and the accuracy of the test. After the pile groove 2 is taken out, the support structure 3 is accurately installed in the predetermined position in the model box 1. After the installation of the support structure 3 and the capping of the model box 1 are completed, the model box 1 can be erected to carry out subsequent operations of the test.

[0033] Compared with the prior art, the installation process of the traditional underground support structure 3 is cumbersome, especially when the pile body is penetrated into the soil sample, the arrangement of the model box 1 adopts the planar pile method, allowing the support structure 3 to be placed and installed in a horizontal state, simplifying the installation process of the support structure 3, and reducing the risk of displacement and deformation of the support structure 3 due to gravity and improper operation. In addition, the use of the pile groove 2 can also improve the positioning accuracy of the support structure 3 in the soil sample, avoiding the common position offset problem in the traditional method. The support structure 3 is a conventional technical means for conducting soft clay model tests in the prior art, which is the prior art, and the support structure 3 will not be described in detail here.

[0034] The inner contour of the pile groove 2 is consistent with the outer dimensions of the supporting structure 3. This ensures the height alignment during the placement process, effectively prevents the supporting structure 3 from being offset, and enables the supporting structure 3 to be accurately positioned in the model box 1 and penetrated into the soft clay.

[0035] The first section 2-1 of the pile groove 2 is located on the side of the frame of the model box 1, and the second section 2-2 of the pile groove 2 is closely fitted with the side wall of the supporting structure 3. The first section 2-1 of the pile groove 2 ensures that the supporting structure 3 can be closely combined with the pile groove 2, thereby enhancing the stability of the overall structure and improving the accuracy and efficiency of the installation process. The second section 2-2 of the pile groove 2 is the part where the pile groove 2 contacts the model box 1, and the use of this section can ensure that the pile groove 2 is closely combined with the frame of the model box 1 and is correctly aligned.

[0036] An edge plate 9 is arranged on the top of the pile groove 2, and the edge plate 9 is arranged in a U shape, and a plurality of hook holes 10 are evenly opened on the edge plate 9. The edge plate 9 is arranged to widen the side edge of the pile groove 2, thereby improving the convenience of carrying the pile groove 2 and simplifying the positioning and placement process of the pile groove 2; in addition, the hook hole 10 is arranged on the edge plate 9, and after the support structure 3 is placed, the hook hole 10 allows a tool such as a hook to be inserted, so as to smoothly remove the pile groove 2 without causing unnecessary interference or displacement to the consolidated soil or the support structure 3.

[0037] Furthermore, the driving assembly 7 includes a fixed plate 71 and an adjusting screw 72. The adjusting screw 72 is rotatably arranged on the back of the side plate 5. The fixed plate 71 is threadedly connected to the adjusting screw 72, and both sides of the fixed plate 71 are fixedly connected to the two limit plates 6 respectively.

[0038] Springs 73 are fixedly connected to both sides of the fixing plate 71 , and one end of the spring 73 away from the fixing plate 71 is fixedly connected to the side plate 5 .

[0039] The fixing assembly 8 includes a rotating plate 81 and a positioning bolt 82 . The rotating plate 81 is rotatably arranged on the top of the limiting plate 6 . The positioning bolt 82 is threadedly connected to the rotating plate 81 . The positioning bolt 82 matches the hook hole 10 .

[0040] In order to ensure that the pile slot 2 can be inserted into the soil sample in a vertical state when placed, and to avoid the position deviation of the pile slot 2, when placing the pile slot 2, the staff rotates the adjusting screw 72 to drive the fixing plate 71 to move, thereby driving the two limiting plates 6 to move out along the inner direction of the model box 1, and then the pile slot 2 is passed through the space between the two limiting plates 6 and placed in the soil sample. Through the limiting of the two limiting plates 6, the pile slot 2 can be vertically inserted into the soil sample when placed, and the two edge plates 9 can be stuck in the two limiting plates 6, so that when the pile groove 2 is taken out, the hook can be quickly hooked in, and it is also convenient for the pile groove 2 to be moved out along the inner side walls of the two limiting plates 6 when it is taken out, so as to avoid the displacement of the pile groove 1. By turning the rotating plate 81 to the hook hole 10 at the top of the edge plate 9, and after the positioning bolt 82 is aligned with the hook hole 10, the positioning bolt 82 is rotated to be screwed into the hook hole 10 to fix the pile groove 2, so as to avoid the displacement of the pile groove 2 when the subsequent supporting structure 3 is put in, and when the pile groove 2 needs to be taken out, the auxiliary positioning mechanism 4 can be reset.

[0041] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the invention to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A device for placing a support structure in a low-strength soft clay model test, comprising a model box (1), characterized in that: The model box (1) is embedded with a pile groove (2), and a supporting structure (3) is placed inside the pile groove (2). The model box (1) is also provided with an auxiliary positioning mechanism (4) for limiting and fixing the pile groove (2). The auxiliary positioning mechanism (4) comprises a side plate (5), two limiting plates (6), a driving component (7) for pushing the two limiting plates (6) to move, and two fixing components (8) for fixing the pile groove (2). The side plate (5) is fixedly arranged on one side of the top of the model box (1), and both sides of the inner wall of the side plate (5) are provided with sliding grooves. The two limiting plates (6) are symmetrically arranged on both sides of the side plate (5), and the two limiting plates (6) are respectively slidably connected to the two sliding grooves. The driving component (7) is arranged on the back of the side plate (5) and is transmission-connected to the two limiting plates (6). The two fixing components (8) are respectively arranged on the two limiting plates (6).

2. The device for placing a support structure in a low-strength soft clay model test according to claim 1, characterized in that: The inner contour of the pile groove (2) is consistent with the outer dimensions of the supporting structure (3).

3. The device for placing a support structure in a low-strength soft clay model test according to claim 1, characterized in that: The first section (2-1) of the pile placement groove (2) is located on the frame side of the model box (1), and the second section (2-2) of the pile placement groove (2) is tightly fitted with the side wall of the supporting structure (3).

4. The device for placing a support structure in a low-strength soft clay model test according to claim 1, characterized in that: An edge plate (9) is arranged at the top of the pile placement groove (2); the edge plate (9) is arranged in a U shape; and a plurality of hook holes (10) are evenly arranged on the edge plate (9).

5. The device for placing a support structure in a low-strength soft clay model test according to claim 4, characterized in that: The driving assembly (7) comprises a fixed plate (71) and an adjusting screw (72), wherein the adjusting screw (72) is rotatably arranged on the back of the side plate (5), the fixed plate (71) is threadedly connected to the adjusting screw (72), and two sides of the fixed plate (71) are respectively fixedly connected to two limit plates (6).

6. The device for placing a support structure in a low-strength soft clay model test according to claim 5, characterized in that: Springs (73) are fixedly connected to both sides of the fixing plate (71), and one end of the spring (73) away from the fixing plate (71) is fixedly connected to the side plate (5).

7. The device for placing a support structure in a low-strength soft clay model test according to claim 4, characterized in that: The fixing assembly (8) comprises a rotating plate (81) and a positioning bolt (82); the rotating plate (81) is rotatably arranged on the top of the limiting plate (6); the positioning bolt (82) is threadedly connected to the rotating plate (81); and the positioning bolt (82) matches the hook hole (10).

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