Bidirectional layered shear box device with anti-torsion function

Abstract

The utility model relates to a bidirectional layered shear box device with an anti-torsion function, a main body of the bidirectional layered shear box device is a layered shear box formed by stacking 26 layers of regular octagonal aluminum alloy frames with H-shaped sections, and the layers are connected with one another through adjustable universal supporting pieces mounted on web plates of the frames. Over-limit horizontal displacement between the adjacent layered frames is restrained by adjustable limiting assemblies installed on the inner sides of the frames, and torsion displacement is limited by anti-torsion connecting pieces installed on the outer sides of the adjacent frames. A waterproof fabric lining is installed in the shearing box, and a bottom layer frame is provided with a multi-layer percolation system. Compared with the prior art, the device has the advantages of large vertical depth, small interlayer sliding resistance, no torsion in the bidirectional shearing process, adjustable interlayer gap and floor height and the like, and is particularly suitable for 1-G vibration table experiments of large-scale saturated / unsaturated sites under the action of multidirectional earthquake actions.

Description

Technical Field

[0001] The utility model relates to the technical field of rock and soil testing in civil engineering, in particular to a bidirectional layered shear box device with an anti-torsion function. Background Art

[0002] In the 1-G shaking table experiment of geotechnical engineering, due to the limited scale of the stratum model, it is necessary to use a model box to restore the semi-infinite boundary conditions of the actual site that extend infinitely in all directions. At present, the existing shaking table model boxes at home and abroad can be divided into four categories according to their working principles: rigid model box, equivalent shear beam model box, hinged plate model box and layered shear box. Among them, the layered shear box is widely used due to its simple structure, wide applicability and small boundary effect. In the layered shear box, the box body is stacked by multiple layers of frames with a certain thickness. By reducing the sliding resistance between layers, the reflected waves generated at the box wall-stratum interface during the earthquake are dissipated as much as possible, minimizing the influence of artificial boundary effects on the experimental results.

[0003] The existing layered shear boxes have the following problems: (1) Most of the shear boxes can only consider unidirectional shear action and cannot be applied to the situation where bidirectional earthquake motion acts together; (2) In the few bidirectional shear box designs in China, there is a lack of effective measures to constrain the torsional freedom between frames. Under the bidirectional shear action, the center of mass of each layer of the site will deviate from the same vertical axis, and the interlayer torque generated by the eccentricity will cause torsional deformation between the layers of the shear box, which is inconsistent with the deformation characteristics of the actual site; (3) The existing shear boxes in China are generally shallow in depth, and the site confining pressure is at a low level, which makes it difficult to truly reflect the stress-strain relationship of the in-situ soil under higher confining pressure conditions; (4) The existing shear boxes used for 1-G shaking table experiments generally lack a bottom drainage system, making it difficult to control the saturation, consolidation, and drainage processes of the soil samples.

[0004] In summary, the design and proposal of a large-depth bidirectional layered shear box with anti-torsion function is of great significance for improving the 1-G shaking table test technology in geotechnical engineering. Utility Model Content

[0005] The purpose of the utility model is to provide a bidirectional layered shear box device with anti-torsion function in order to overcome the deficiencies in the prior art. The utility model has the advantages of large vertical depth, small interlayer sliding resistance, no torsion during bidirectional shearing, adjustable interlayer gap and layer height, etc. It is particularly suitable for 1-G shaking table experiments in large-scale saturated / unsaturated sites under multi-directional seismic motion.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A bidirectional layered shear box device with anti-torsion function, the bidirectional layered shear box device comprises a bottom frame, a standard frame and a top frame, the standard frame is provided with multiple layers, the multiple layers of the standard frame are arranged between the bottom frame and the top frame, the bottom frame, the standard frame and the top frame are stacked on each other to form a bidirectional layered shear box body;

[0008] The bottom frame, standard frame and top frame are all composed of a web, an outer wing plate and an inner wing plate, one end of the web is vertically connected to the outer wing plate, and the other end of the web is vertically connected to the inner wing plate;

[0009] An adjustable universal support and an adjustable limit assembly are fixedly provided at the web positions of the standard frame and the bottom frame. The bottoms of the adjustable universal support and the adjustable limit assembly are fixedly provided on the upper surface of the web of the bottom frame, and the top of the adjustable universal support is connected to the lower surface of the web of the lowest standard frame.

[0010] The adjustable universal support and the bottom of the adjustable limit assembly are fixedly arranged on the upper surface of the standard frame web, and the top of the adjustable universal support is connected to the lower surface of the adjacent standard frame web.

[0011] The adjustable universal support and the bottom of the adjustable limit assembly are fixedly arranged on the upper surface of the web of the topmost standard frame, the top of the adjustable universal support is connected to the lower surface of the web of the top frame, and the adjustable limit assembly is used to control the maximum relative displacement between adjacent frames within the allowable range;

[0012] The anti-torsion connector is fixed at the outer wing plate position between the top frame and the uppermost standard frame, between adjacent standard frames, and between the lowest standard frame and the bottom frame. The anti-torsion connector is used to constrain the torsional displacement between adjacent bottom frames, standard frames or top frames.

[0013] Furthermore, an inner lining fixing ring is provided on the inner wall of the bottom frame, and a plurality of fixing members are provided at intervals on the top frame.

[0014] A waterproof fabric lining is provided on the inner side of the bidirectional layered shear box, the waterproof fabric lining is in contact with the inner wall of the bidirectional layered shear box, the bottom end of the waterproof fabric lining is anchored to the lining fixing ring, and the top end of the waterproof fabric lining is fixed to the top frame by a fixing piece.

[0015] Furthermore, the standard frame is provided with 24 layers.

[0016] Furthermore, a rigid bottom plate is provided at the bottom end of the bottom frame, the rigid bottom plate is fixed on the vibration table, and screw holes are provided on the rigid bottom plate.

[0017] Furthermore, the bottom frame, the standard frame and the top frame are made of aluminum alloy.

[0018] Furthermore, the cross-sectional shape formed by the web, the outer wing plate and the inner wing plate is H-shaped, and the web is parallel to the horizontal plane.

[0019] Furthermore, the plane shapes of the bottom frame, the standard frame and the top frame are all regular octagons.

[0020] Each bottom layer frame or standard frame is provided with eight adjustable universal support members and eight adjustable limit assemblies.

[0021] Furthermore, the bottom of the adjustable universal support is fixedly mounted on the upper surface of each web of the bottom frame, and the top of the adjustable universal support is connected to the lower surface of each web of the bottom standard frame.

[0022] The bottom of the adjustable universal support is fixedly arranged on the upper surface of each web of the standard frame, and the top of the adjustable universal support is connected to the lower surface of each web of the adjacent standard frame.

[0023] The bottom of the adjustable universal support is fixedly arranged on the upper surface of each web of the uppermost standard frame, and the top of the adjustable universal support is connected to the lower surface of each web of the top frame;

[0024] The bottom of the adjustable limit assembly is fixedly arranged at intervals on the upper surface of the four webs of the bottom frame or the standard frame;

[0025] And every two of the adjustable limit assemblies are arranged on the left and right sides of the adjustable universal support;

[0026] The anti-torsion connectors are arranged at intervals at four outer wing plate positions between the top frame and the uppermost standard frame, between adjacent standard frames, and between the lowermost standard frame and the bottom frame.

[0027] Furthermore, the anti-torsion connector includes an upper rigid wing plate, a lower rigid wing plate, an upper linear guide rail module, a lower linear guide rail module and a back locking plate.

[0028] The rear ends of the upper rigid wing plate and the lower rigid wing plate are fixedly arranged on the outer sides of the top frame and the uppermost standard frame respectively.

[0029] The rear ends of the upper rigid wing plate and the lower rigid wing plate are respectively fixed on the outer sides of the adjacent standard frames.

[0030] The rear ends of the upper rigid wing plate and the lower rigid wing plate are fixedly arranged on the outer sides of the lowest standard frame and the bottom frame respectively.

[0031] An upper linear guide module is fixedly disposed at the bottom end of the upper rigid wing plate, and a lower linear guide module is fixedly disposed at the top end of the lower rigid wing plate.

[0032] The movement directions of the upper linear guide module and the lower linear guide module are perpendicular to each other, and the upper linear guide module and the lower linear guide module are connected via a back locking plate.

[0033] Furthermore, the track of the upper linear guide module is fixedly connected to the upper rigid wing plate, and the track of the lower linear guide module is fixedly connected to the lower rigid wing plate.

[0034] Furthermore, the adjustable universal support comprises a universal wheel base, an adjustment gasket and a universal wheel, the bottom of the universal wheel base is fixed to the upper surface of the web of the lower standard frame or the bottom frame, the universal wheel base is provided with a universal wheel, and the top of the universal wheel is supported on the lower surface of the web of the upper standard frame or the top frame.

[0035] A plurality of adjustment gaskets are arranged between the universal wheel base and the universal wheel. By replacing the adjustment gaskets with different thicknesses, the overall height of the adjustable universal support can be changed, thereby adjusting the spacing between adjacent layered frames.

[0036] Furthermore, the adjustable limit assembly includes a limit base and a rubber pad, the bottom of the limit base is fixed to the upper surface of the web of the lower standard frame or the bottom frame,

[0037] A rubber pad is provided at the upper end of the limit base, and the over-limit displacement between adjacent frames is limited by the contact between the rubber pad and the upper standard frame or the outer wing plate of the top frame.

[0038] Furthermore, the rubber pad is a rubber pad with replaceable thickness, and the allowable displacement between adjacent frames is adjusted by changing the thickness of the rubber pad.

[0039] Furthermore, the multi-layer infiltration component includes a dendritic pipeline layer, a gas / liquid inlet and outlet, a gravel layer and a geotextile covering layer. The bottom frame is provided with a multi-layer infiltration component, the dendritic pipeline layer is provided in the gravel layer, and the upper and lower sides of the gravel layer are provided with geotextile covering layers.

[0040] The branch-shaped pipeline layer is connected to the outside through a gas / liquid inlet and outlet, and the side of the branch-shaped pipeline layer is provided with an opening.

[0041] In addition, the utility model also provides a method for using a bidirectional layered shear box device with an anti-torsion function, and the specific steps are as follows:

[0042] (1) adjusting the spacing between adjacent layered frames by adjusting the thickness of the adjustment pad in the adjustable universal support;

[0043] (2) Adjust the allowable displacement between adjacent frames by changing the thickness of the rubber pad in the adjustable limit assembly;

[0044] (3) Placing the soil in a bidirectional layered shear box;

[0045] (4) Introduce gas or liquid evenly into the soil through the gas / liquid inlet and outlet.

[0046] In addition, the utility model also provides an application of a bidirectional layered shear box device with an anti-torsion function, wherein the bidirectional layered shear box device is used for a 1-G shaking table test of saturated soil.

[0047] Compared with the prior art, the utility model has the following beneficial effects:

[0048] 1. Compared with the existing shear boxes, the shear box involved in the utility model has a larger vertical depth, which is conducive to carrying out low similarity ratio or prototype field experiments and exploring the nonlinear dynamic response mechanism of soil under high confining pressure;

[0049] 2. The layered frame involved in the utility model adopts an H-shaped cross-section, has a large lateral stiffness, and can provide sufficient lateral constraint conditions for the soil in the layer; in addition, the adjustable universal support member involved in the utility model significantly reduces the friction resistance of the layered frame during movement through rolling friction, and effectively reduces the artificial boundary effect of the shear box;

[0050] 3. The adjustable universal support adopted by the utility model allows the frame to slide freely in multiple directions in the horizontal plane; in addition, the relative rotation between the frame layers is strictly limited by the anti-torsion connector; the above mechanism ensures that the overall deformation mode of the shear box during bidirectional loading is consistent with the equivalent shear beam assumption, providing reasonable artificial boundary conditions for the model site;

[0051] 4. The adjustable universal support and adjustable limit assembly adopted by the utility model can flexibly adjust the interlayer spacing of the shear box and the maximum horizontal displacement allowed according to the experimental needs by changing the thickness of the adjustment gasket and the rubber pad;

[0052] 5. The bottom of the shear box involved in the utility model has a multi-layer infiltration system, which can evenly introduce gas or liquid into the soil, which is conducive to carrying out 1-G vibration table experiments on saturated soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 This is the overall schematic diagram of the layered shear box device;

[0054] Figure 2 This is a top view of the bottom frame of the layered shear box device;

[0055] Figure 3 It is a structural schematic diagram of the bottom frame of the layered shear box device;

[0056] Figure 4 It is a schematic diagram of the structure of the standard frame of the layered shear box device;

[0057] Figure 5 It is a schematic diagram of the structure of the top frame of the layered shear box device;

[0058] Figure 6 It is a structural schematic diagram of an adjustable universal support between adjacent frames of the layered shear box device;

[0059] Figure 7 It is a structural schematic diagram of the adjustable limit assembly between the frames of the layered shear box device;

[0060] Figure 8 It is a schematic diagram of the structure of the anti-torsion connecting member between the frames of the layered shear box device;

[0061] Explanation of the accompanying figures: 1. Bottom frame, 2. Standard frame, 3. Top frame, 4. Waterproof fabric lining, 5. Anti-torsion connector, 6. Lining fixing ring, 7. Adjustable universal support, 8. Adjustable limit assembly, 9. Dendritic pipeline layer, 10. Gas / liquid inlet and outlet, 11. Gravel layer, 12. Geotextile covering layer, 13. Universal wheel base, 14. Adjustment gasket, 15. Universal wheel, 16. Limit base, 17. Rubber pad, 18. Upper rigid wing plate, 19. Lower rigid wing plate, 20. Upper linear guide module, 21. Lower linear guide module, 22. Back locking plate. DETAILED DESCRIPTION

[0062] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and a specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0063] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0064] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0065] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0066] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0067] Example 1

[0068] See also Figures 1 to 8 The present embodiment provides a bidirectional layered shear box device with anti-torsion function, the bidirectional layered shear box device comprises a bottom frame 1, a standard frame 2 and a top frame 3, the standard frame 2 is provided with multiple layers, the multiple layers of the standard frame 2 are arranged between the bottom frame 1 and the top frame 3, the bottom frame 1, the standard frame 2 and the top frame 3 are stacked on each other to form a bidirectional layered shear box body;

[0069] The bottom frame 1, the standard frame 2 and the top frame 3 are all composed of a web, an outer wing plate and an inner wing plate, one end of the web is vertically connected to the outer wing plate, and the other end of the web is vertically connected to the inner wing plate;

[0070] An adjustable universal support 7 and an adjustable limit assembly 8 are fixedly provided at the web positions of the standard frame 2 and the bottom frame 1. The bottoms of the adjustable universal support 7 and the adjustable limit assembly 8 are fixedly provided on the upper surface of the web of the bottom frame 1, and the top of the adjustable universal support 7 is connected to the lower surface of the web of the lowest standard frame 2.

[0071] The bottom of the adjustable universal support member 7 and the adjustable limit assembly 8 are fixedly arranged on the upper surface of the web of the standard frame 2, and the top of the adjustable universal support member 7 is connected to the lower surface of the web of the adjacent standard frame 2.

[0072] The bottom of the adjustable universal support 7 and the adjustable limit assembly 8 are fixedly arranged on the upper surface of the web of the top standard frame 2, the top of the adjustable universal support 7 is connected to the lower surface of the web of the top frame 3, and the adjustable limit assembly 8 is used to control the maximum relative displacement between adjacent frames within the allowable range;

[0073] The anti-torsion connector 5 is fixed at the outer wing plate position between the top frame 3 and the uppermost standard frame 2, between adjacent standard frames 2, and between the lowest standard frame 2 and the bottom frame 1. The anti-torsion connector 5 is used to constrain the torsional displacement between adjacent bottom frames 1, standard frames 2 or top frames 3.

[0074] In this embodiment, the inner wall of the bottom frame 1 is provided with an inner lining fixing ring 6, and the top frame 3 is provided with a plurality of fixing members at intervals.

[0075] A waterproof fabric lining 4 is provided on the inner side of the bidirectional layered shear box body, and the waterproof fabric lining 4 is in contact with the inner wall of the bidirectional layered shear box body. The bottom end of the waterproof fabric lining 4 is anchored to the lining fixing ring 6, and the top end of the waterproof fabric lining 4 is fixed to the top frame 3 through a fixing part.

[0076] In this embodiment, the standard frame 2 is provided with 24 layers.

[0077] In this embodiment, a rigid bottom plate is provided at the bottom end of the bottom frame 1, and the rigid bottom plate is fixed on the vibration table. Screw holes are provided on the rigid bottom plate.

[0078] In this embodiment, the bottom frame 1, the standard frame 2 and the top frame 3 are made of aluminum alloy.

[0079] In this embodiment, the cross-sectional shape formed by the web, the outer wing plate and the inner wing plate is H-shaped, and the web is parallel to the horizontal plane.

[0080] In this embodiment, the plane shapes of the bottom frame 1, the standard frame 2 and the top frame 3 are all regular octagons.

[0081] Each bottom frame 1 or standard frame 2 is provided with eight adjustable universal support members 7 and eight adjustable limit assemblies 8 .

[0082] In this embodiment, the bottom of the adjustable universal support member 7 is fixedly arranged on the upper surface of each web of the bottom frame 1, and the top of the adjustable universal support member 7 is connected to the lower surface of each web of the bottom standard frame 2.

[0083] The bottom of the adjustable universal support member 7 is fixedly arranged on the upper surface of each web of the standard frame 2, and the top of the adjustable universal support member 7 is connected to the lower surface of each web of the adjacent standard frame 2.

[0084] The bottom of the adjustable universal support member 7 is fixedly arranged on the upper surface of each web of the uppermost standard frame 2, and the top of the adjustable universal support member 7 is connected to the lower surface of each web of the top frame 3;

[0085] The bottom of the adjustable limit assembly 8 is fixedly arranged at intervals on the upper surface of four webs of the bottom frame 1 or the standard frame 2;

[0086] And every two of the adjustable limit assemblies 8 are arranged on the left and right sides of the adjustable universal support 7;

[0087] The anti-torsion connectors 5 are arranged at intervals at four outer wing positions between the top frame 3 and the uppermost standard frame 2, between adjacent standard frames 2, and between the lowermost standard frame 2 and the bottom frame 1.

[0088] In this embodiment, the anti-torsion connector 5 includes an upper rigid wing plate 18, a lower rigid wing plate 19, an upper linear guide rail module 20, a lower linear guide rail module 21 and a back locking plate 22.

[0089] The rear ends of the upper rigid wing plate 18 and the lower rigid wing plate 19 are fixedly arranged on the outer sides of the top frame 3 and the uppermost standard frame 2, respectively.

[0090] The rear ends of the upper rigid wing plate 18 and the lower rigid wing plate 19 are fixedly arranged on the outer sides of the adjacent standard frames 2.

[0091] The rear ends of the upper rigid wing plate 18 and the lower rigid wing plate 19 are fixedly arranged on the outer sides of the lowest standard frame 2 and the bottom frame 1, respectively.

[0092] An upper linear guide module 20 is fixedly disposed at the bottom end of the upper rigid wing plate 18, and a lower linear guide module 21 is fixedly disposed at the top end of the lower rigid wing plate 19.

[0093] The upper linear guide module 20 and the lower linear guide module 21 have movement directions perpendicular to each other, and the upper linear guide module 20 and the lower linear guide module 21 are connected via a back locking plate 22 .

[0094] In this embodiment, the track of the upper linear guide module 20 is fixed to the upper rigid wing plate 18 , and the track of the lower linear guide module 21 is fixed to the lower rigid wing plate 19 .

[0095] In this embodiment, the adjustable universal support member 7 includes a universal wheel base 13, an adjustment gasket 14 and a universal wheel 15. The bottom of the universal wheel base 13 is fixed to the upper surface of the web of the lower standard frame 2 or the bottom frame 1. The universal wheel base 13 is provided with a universal wheel 15. The top of the universal wheel 15 is supported on the lower surface of the web of the upper standard frame 2 or the top frame 3.

[0096] A plurality of adjustment gaskets 14 are provided between the universal wheel base 13 and the universal wheel 15. By replacing the adjustment gaskets 14 with different thicknesses, the overall height of the adjustable universal support 7 can be changed, thereby adjusting the spacing between adjacent layered frames.

[0097] In this embodiment, the adjustable limit assembly 8 includes a limit base 16 and a rubber pad 17. The bottom of the limit base 16 is fixed to the upper surface of the web of the lower standard frame 2 or the bottom frame 1.

[0098] A rubber pad 17 is provided at the upper end of the limiting base 16, and the over-limit displacement between adjacent frames is limited by the contact between the rubber pad 17 and the outer wing plate of the upper standard frame 2 or the top frame 3.

[0099] In this embodiment, the rubber pad 17 is a rubber pad 17 with replaceable thickness, and the allowable displacement between adjacent frames is adjusted by changing the thickness of the rubber pad 17.

[0100] In this embodiment, a multi-layer infiltration component is provided in the bottom frame 1, and the multi-layer infiltration component includes a dendritic pipeline layer 9, a gas / liquid inlet and outlet 10, a gravel layer 11 and a geotextile covering layer 12. The dendritic pipeline layer 9 is provided in the gravel layer 11, and the geotextile covering layer 12 is provided on both the upper and lower sides of the gravel layer 11.

[0101] The branch-shaped pipeline layer 9 is connected to the outside through the gas / liquid inlet and outlet 10, and the side of the branch-shaped pipeline layer 9 is provided with an opening.

[0102] like Figure 1 As shown, the bidirectional layered shear box device of the utility model is stacked in sequence by a bottom frame 1, a 24-layer standard frame 2 and a top frame 3. The inside of the shear box is provided with a waterproof fabric lining 4 that fits the box wall, and the outside is provided with four rows of anti-torsion connectors 5.

[0103] like Figure 2 As shown, the installation position of the anti-torsion connector 5 is on the outer wing plates of the opposite sides of each regular octagonal layered frame, and the waterproof fabric lining 4 is fixed to the lining fixing ring 6 by waterproof bolts.

[0104] The structure of the bottom frame 1 is as follows: Figure 3 As shown, a total of 8 sets of adjustable universal supports 7 are installed on the H-shaped web, and 8 sets of adjustable limit assemblies 8 are installed at the same time. In the frame, openings with stainless steel filters are distributed on the dendritic pipeline layer 9, and the main pipe passes through the side wall of the bottom frame 1 and is connected to the gas / liquid inlet and outlet 10. The gravel layer 11 buries the dendritic pipeline layer 9, and its upper and lower surfaces are covered with geotextile covering layers 12 respectively to prevent fine particles in the soil sample from entering the pipeline system. In addition, 8 hanging points are arranged around the bottom ring frame 1 for lifting the shear box device.

[0105] The structure of the standard frame 2 is as follows Figure 4 As shown, a total of 8 sets of adjustable universal support members 7 are installed on the H-shaped web, and 8 sets of adjustable limit assemblies 8 are also installed.

[0106] The structure of the top frame 3 is as follows: Figure 5 As shown, the difference from the standard frame 2 is that no components are installed on its H-shaped web.

[0107] The H-shaped webs of the bottom frame 1, the standard frame 2 and the top frame 3 are provided with ribbed plates in the area where the anti-torsion connector 5 is installed to improve the local rigidity.

[0108] The connections within the framework are as follows Figure 6 The deadweight of the frame is transmitted by the adjustable universal support 7, in which the universal wheel 15 passes through the adjustment gasket 14 and is anchored to the universal wheel base 13 by a nut. By changing the thickness of the adjustment gasket 14, the spacing between adjacent layered frames can be changed.

[0109] The limiting mechanism inside the frame is as follows Figure 7 As shown. The maximum horizontal displacement allowed by the frame is controlled by the adjustable limit assembly 8. The adjustable limit assembly 8 is composed of a limit base 16 and a rubber pad 17 adhered thereto. During loading, the maximum horizontal displacement of each frame will not exceed the original spacing between the rubber pad 17 and the outer wing plate of the upper frame. By changing the thickness of the rubber pad 17, the allowable displacement can be adjusted.

[0110] The structure of the anti-twist connector 5 is as follows: Figure 8 As shown, the guide rails of the upper linear guide module 20 are respectively fixed to the upper rigid wing plate 18 by bolts, and the lower linear guide module 21 is similarly fixed to the lower rigid wing plate 19, ensuring that the movement directions of the upper linear guide module 20 and the lower linear guide module 21 are perpendicular to each other. The upper linear guide module 20 and the lower linear guide module 21 are both connected to the back locking plate 22 by bolts, thereby fixing the two. When the anti-torsion connector 5 is installed between adjacent layered frames, the upper rigid wing plate 18 is fixed to the upper side frame by bolts, and the lower rigid wing plate 19 is fixed to the lower side frame.

[0111] The above description of the embodiments is to facilitate the understanding and use of the utility model by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.

Claims

1. A bidirectional layered shear box device with anti-torsion function, characterized in that: The bidirectional layered shear box device comprises a bottom frame (1), a standard frame (2), a top frame (3) and an anti-torsion connector (5); the standard frame (2) is provided with multiple layers, the multiple layers of the standard frame (2) are arranged between the bottom frame (1) and the top frame (3); the bottom frame (1), the standard frame (2) and the top frame (3) are stacked on each other to form a bidirectional layered shear box body; The bottom frame (1), the standard frame (2) and the top frame (3) are all composed of a web, an outer wing plate and an inner wing plate, one end of the web is vertically connected to the outer wing plate, and the other end of the web is vertically connected to the inner wing plate; An adjustable universal support member (7) and an adjustable limit assembly (8) are fixedly provided at the web positions of the standard frame (2) and the bottom frame (1); the bottoms of the adjustable universal support member (7) and the adjustable limit assembly (8) are fixedly provided on the upper surface of the web of the bottom frame (1); the top of the adjustable universal support member (7) is connected to the lower surface of the web of the lowest standard frame (2); The bottoms of the adjustable universal support member (7) and the adjustable limit assembly (8) are fixedly arranged on the upper surface of the web of the standard frame (2), and the top of the adjustable universal support member (7) is connected to the lower surface of the web of the adjacent standard frame (2). The bottoms of the adjustable universal support (7) and the adjustable limit assembly (8) are fixedly arranged on the upper surface of the web of the uppermost standard frame (2); the top of the adjustable universal support (7) is connected to the lower surface of the web of the top frame (3); and the adjustable limit assembly (8) is used to control the maximum relative displacement between adjacent frames within an allowable range; The anti-torsion connecting member (5) is fixedly arranged at the outer wing plate position between the top frame (3) and the uppermost standard frame (2), between adjacent standard frames (2), and between the lowermost standard frame (2) and the bottom frame (1), and the anti-torsion connecting member (5) is used to constrain the torsional displacement between adjacent bottom frames (1), standard frames (2) or top frames (3).

2. A bidirectional layered shear box device with anti-torsion function according to claim 1, characterized in that: The inner wall of the bottom frame (1) is provided with an inner lining fixing ring (6), and the top frame (3) is provided with a plurality of fixing members at intervals. The inner side of the bidirectional layered shear box is provided with a waterproof fabric lining (4), the waterproof fabric lining (4) is in contact with the inner side wall of the bidirectional layered shear box, the bottom end of the waterproof fabric lining (4) is anchored to the lining fixing ring (6), and the top end of the waterproof fabric lining (4) is fixed to the top frame (3) via a fixing piece.

3. A bidirectional layered shear box device with anti-torsion function according to claim 1, characterized in that: The bottom end of the bottom frame (1) is provided with a rigid bottom plate, and the rigid bottom plate is fixed on the vibration platform; The bottom frame (1), the standard frame (2) and the top frame (3) are made of aluminum alloy.

4. A bidirectional layered shear box device with anti-torsion function according to claim 1, characterized in that: The cross-section of the web, the outer wing and the inner wing is H-shaped, and the web is parallel to the horizontal plane.

5. A bidirectional layered shear box device with anti-torsion function according to claim 4, characterized in that: The plane shapes of the bottom frame (1), the standard frame (2) and the top frame (3) are all regular octagons. Each bottom layer frame (1) or standard frame (2) is provided with eight adjustable universal support members (7) and eight adjustable limiter components (8).

6. A bidirectional layered shear box device with anti-torsion function according to claim 5, characterized in that: The bottom of the adjustable universal support member (7) is fixedly arranged on the upper surface of each web of the bottom frame (1), and the top of the adjustable universal support member (7) is connected to the lower surface of each web of the bottom standard frame (2). The bottom of the adjustable universal support member (7) is fixedly arranged on the upper surface of each web of the standard frame (2), and the top of the adjustable universal support member (7) is connected to the lower surface of each web of the adjacent standard frame (2). The bottom of the adjustable universal support member (7) is fixedly arranged on the upper surface of each web of the uppermost standard frame (2), and the top of the adjustable universal support member (7) is connected to the lower surface of each web of the top frame (3); The bottom of the adjustable limit assembly (8) is fixedly arranged at intervals on the upper surface of four webs of the bottom frame (1) or the standard frame (2); Each two of the adjustable limit assemblies (8) are arranged on the left and right sides of the adjustable universal support member (7); The anti-torsion connectors (5) are arranged at intervals at four outer wing plate positions between the top frame (3) and the uppermost standard frame (2), between adjacent standard frames (2), and between the lowermost standard frame (2) and the bottom frame (1).

7. A bidirectional layered shear box device with anti-torsion function according to claim 1, characterized in that: The anti-torsion connecting member (5) comprises an upper rigid wing plate (18), a lower rigid wing plate (19), an upper linear guide rail module (20), a lower linear guide rail module (21) and a back locking plate (22). The rear ends of the upper rigid wing plate (18) and the lower rigid wing plate (19) are fixedly arranged on the outer sides of the top frame (3) and the uppermost standard frame (2), respectively. The rear ends of the upper rigid wing plate (18) and the lower rigid wing plate (19) are respectively fixed on the outside of the adjacent standard frame (2). The rear ends of the upper rigid wing plate (18) and the lower rigid wing plate (19) are fixedly arranged on the outer sides of the lowest standard frame (2) and the bottom frame (1), respectively. An upper linear guide rail module (20) is fixedly disposed at the bottom end of the upper rigid wing plate (18), and a lower linear guide rail module (21) is fixedly disposed at the top end of the lower rigid wing plate (19). The movement directions of the upper linear guide module (20) and the lower linear guide module (21) are perpendicular to each other, and the upper linear guide module (20) and the lower linear guide module (21) are connected via a back locking plate (22).

8. A bidirectional layered shear box device with anti-torsion function according to claim 1, characterized in that: The adjustable universal support member (7) comprises a universal wheel base (13), an adjustment gasket (14) and a universal wheel (15); the bottom of the universal wheel base (13) is fixed to the upper surface of the web of the lower standard frame (2) or the bottom frame (1); the universal wheel (15) is provided on the universal wheel base (13); the top of the universal wheel (15) is supported on the lower surface of the web of the upper standard frame (2) or the top frame (3); A plurality of adjustment gaskets (14) are arranged between the universal wheel base (13) and the universal wheel (15). By replacing the adjustment gaskets (14) of different thicknesses, the overall height of the adjustable universal support (7) can be changed, thereby adjusting the spacing between adjacent layered frames.

9. A bidirectional layered shear box device with anti-torsion function according to claim 1, characterized in that: The adjustable limiting assembly (8) comprises a limiting base (16) and a rubber pad (17). The bottom of the limiting base (16) is fixed to the upper surface of the web of the lower standard frame (2) or the bottom frame (1). A rubber pad (17) is provided at the upper end of the limiting base (16), and the over-limit displacement between adjacent frames is limited by the contact between the rubber pad (17) and the outer wing plate of the upper standard frame (2) or the top frame (3).

10. A bidirectional layered shear box device with anti-torsion function according to claim 1, characterized in that: A multi-layer infiltration component is arranged in the bottom frame (1), and the multi-layer infiltration component comprises a dendritic pipeline layer (9), a gas / liquid inlet and outlet (10), a gravel layer (11) and a geotextile covering layer (12). The dendritic pipeline layer (9) is arranged in the gravel layer (11), and the geotextile covering layers (12) are arranged on both the upper and lower sides of the gravel layer (11). The branch-shaped pipeline layer (9) is connected to the outside world via a gas / liquid inlet and outlet (10), and an opening is provided on the side of the branch-shaped pipeline layer (9).

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