Multi-stage assembly type bearing plate for detecting bearing capacity of foundation

Abstract

The utility model discloses a multi-stage assembly type bearing plate for detecting the bearing capacity of a foundation, belongs to the technical field of detection of the bearing capacity of the foundation, and aims to solve the problem that the existing bearing plate is low in detection efficiency in the testing process. The multi-stage assembly type pressure bearing plate comprises a pressure bearing seat (1), a first-stage horizontal pressure bearing plate (2) and a second-stage horizontal pressure bearing plate (3) which are sequentially stacked from top to bottom, the pressure bearing seat (1) is detachably connected with the first-stage horizontal pressure bearing plate (2), and the first-stage horizontal pressure bearing plate (2) is detachably connected with the second-stage horizontal pressure bearing plate (3). And the projection area of the second-stage horizontal bearing plate (3) on the horizontal plane is larger than that of the first-stage horizontal bearing plate (2) on the horizontal plane. The bearing seat and the multi-stage horizontal bearing plate are detachably connected, the bearing seat and the multi-stage horizontal bearing plate are detachably connected, the bearing seat and the multi-stage horizontal bearing plate can be moved and assembled according to needs, rapid and convenient mounting and dismounting are achieved, the foundation bearing capacity detection time is shortened, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation bearing capacity detection, in particular to a multi-stage assembled bearing plate for foundation bearing capacity detection. Background Technique

[0002] In engineering design, in order to more deeply understand the deformation performance and bearing capacity of foundation soil, it is necessary to conduct bearing capacity detection on the foundation to determine the foundation bearing capacity. The plate load test is the most commonly used detection method. It gradually and slowly applies pressure to the foundation through a bearing plate with a fixed area, simulating the pressure of an actual building on the foundation. By recording the load value and the settlement value under each level of load, the test method for measuring the pressure and settlement characteristics of foundation soil is obtained. This method can be used for the bearing capacity detection of natural foundations and various composite foundations. However, due to the limitations of the shape and size of the load plate and the maximum loading value, the depth that can be detected by the plate load test is relatively shallow, the detection range is small, and conventional steel or concrete-reinforced bearing plates are relatively heavy, with a single size, and the processing and on-site layout processes are slow, affecting the efficiency of foundation bearing capacity detection. Content of the Utility Model

[0003] In order to solve the problem of low detection efficiency of the existing bearing plate in the testing process, the utility model provides a multi-stage assembled bearing plate for foundation bearing capacity detection. The multi-stage assembled bearing plate for foundation bearing capacity detection includes a bearing seat and multi-stage horizontal bearing plates. The bearing seat and the multi-stage horizontal bearing plates are detachably connected, and can be moved and assembled according to needs. It can not only meet the different requirements for the size of the bearing plate in foundation bearing capacity detection, but also be reused, which is convenient for hoisting and transportation, and is also convenient for on-site layout and recycling of the bearing plate. At the same time, it expands the foundation bearing capacity detection range and detection depth.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A multi-stage assembled bearing plate for foundation bearing capacity detection includes a bearing seat, a first-stage horizontal bearing plate, and a second-stage horizontal bearing plate that are stacked in sequence from top to bottom. The bearing seat and the first-stage horizontal bearing plate are detachably connected, the first-stage horizontal bearing plate and the second-stage horizontal bearing plate are detachably connected, and the projected area of the second-stage horizontal bearing plate on the horizontal plane is larger than the projected area of the first-stage horizontal bearing plate on the horizontal plane.

[0006] The bearing seat includes a top plate, an intermediate column, and a bottom plate in sequence from top to bottom. The axes of the top plate, the intermediate column, and the bottom plate coincide, and the bottom plate is detachably connected to the first-stage horizontal bearing plate.

[0007] The outer diameter of the top plate is larger than that of the middle column, and the outer diameter of the top plate is smaller than that of the bottom plate. The projected area of the bottom plate on the horizontal plane is smaller than the projected area of the first-stage horizontal bearing plate on the horizontal plane. The pressure-bearing seat further includes a plurality of reinforcing rib plates, and the plurality of reinforcing rib plates are evenly spaced along the circumferential direction of the middle column.

[0008] The middle column is of a cylindrical structure, and the reinforcing rib plate is a right trapezoid. The top side of the reinforcing rib plate is fixedly connected and matched with the lower surface of the top plate, the bottom side of the reinforcing rib plate is fixedly connected and matched with the upper surface of the bottom plate, and the straight side of the reinforcing rib plate is fixedly connected and matched with the outer peripheral surface of the middle column.

[0009] In the middle of the upper surface of the first-stage horizontal bearing plate, a first embedded internal thread sleeve is provided. The bottom plate of the pressure-bearing seat and the first-stage horizontal bearing plate are connected by a first internal bolt and a first internal nut. The first internal bolt passes through the bottom plate, and the first internal bolt is threadedly connected with the first embedded internal thread sleeve.

[0010] On the upper surface of the second-stage horizontal bearing plate, a second embedded internal thread sleeve is provided. The first-stage horizontal bearing plate and the second-stage horizontal bearing plate are connected by a first external bolt and a first external nut. The first external bolt passes through the first-stage horizontal bearing plate, and the first external bolt is threadedly connected with the second embedded internal thread sleeve. The first external bolt is located at the edge of the first-stage horizontal bearing plate.

[0011] Both the first-stage horizontal bearing plate and the second-stage horizontal bearing plate are of reinforced concrete structures. The projections of the first-stage horizontal bearing plate and the second-stage horizontal bearing plate on the horizontal plane are both rectangles. The four sides of the first-stage horizontal bearing plate and the four sides of the second-stage horizontal bearing plate are correspondingly parallel. The centers of the projections of the first-stage horizontal bearing plate and the second-stage horizontal bearing plate on the horizontal plane are both located on the axis of the pressure-bearing seat. On the upper surface of the first-stage horizontal bearing plate, a first internal horizontal embedded lifting hook is provided, and on the upper surface of the second-stage horizontal bearing plate, a second internal horizontal embedded lifting hook is provided.

[0012] The multi-stage assembled bearing plate for foundation bearing capacity detection further includes a third-stage horizontal bearing plate. The projected area of the third-stage horizontal bearing plate on the horizontal plane is larger than the projected area of the second-stage horizontal bearing plate on the horizontal plane. The second-stage horizontal bearing plate and the third-stage horizontal bearing plate are stacked downward, and the first-stage horizontal bearing plate and the third-stage horizontal bearing plate are detachably connected.

[0013] On the upper surface of the third-stage horizontal bearing plate, a third embedded internal thread sleeve is provided. The second-stage horizontal bearing plate and the third-stage horizontal bearing plate are connected by a second bolt and a second nut. The second bolt passes through the second-stage horizontal bearing plate, and the second bolt is threadedly connected with the third embedded internal thread sleeve. The second bolt is located at the edge of the second-stage horizontal bearing plate.

[0014] The third-level horizontal bearing plate is made of reinforced concrete. The projection of the third-level horizontal bearing plate on the horizontal plane is rectangular. The four sides of the second-level horizontal bearing plate are correspondingly parallel to the four sides of the third-level horizontal bearing plate. The center of the projection of the third-level horizontal bearing plate on the horizontal plane is located on the axis of the bearing seat. The upper surface of the third-level horizontal bearing plate is provided with third internal horizontal embedded lifting hooks.

[0015] The beneficial effects of the present utility model are as follows:

[0016] 1. It realizes quick and convenient installation and disassembly, reduces the detection time of the foundation bearing capacity, improves the recycling rate of engineering components, and reduces material loss.

[0017] 2. Since the multi-level horizontal bearing plates are all prefabricated components, the size and even shape of each level of horizontal bearing plate can be appropriately adjusted according to the actual situation on site, meeting the different requirements of each detection point for the area replacement rate.

[0018] 3. By the assembly method of vertically stacking the multi-level horizontal bearing plates, the problem of large deformation caused by insufficient stiffness of the traditional bearing plate in large areas is solved. When the stiffness does not meet the deformation requirements of the bearing plate, the number of precast reinforced concrete bearing plate levels can be increased according to the method of the horizontal bearing plate to realize the supplement of the stiffness of the assembled bearing plate and improve the overall safety and applicability of the bearing plate.

[0019] 4. It can be widely applied to the detection of foundation bearing capacity. Each component can be standardized and scaled up, with high assembly efficiency and obvious economic benefits. Description of the Drawings

[0020] The specification drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0021] Figure 1 It is the front view schematic diagram of the multi-level assembled bearing plate for foundation bearing capacity detection according to the present utility model in Embodiment 1.

[0022] Figure 2 It is the top view schematic diagram of the multi-level assembled bearing plate for foundation bearing capacity detection according to the present utility model in Embodiment 1.

[0023] Figure 3 It is the three-dimensional schematic diagram of the multi-level assembled bearing plate for foundation bearing capacity detection according to the present utility model in Embodiment 1.

[0024] Figure 4 It is the schematic diagram of the reinforcing rib plate.

[0025] Figure 5It is the front view schematic diagram of the multi-stage assembled load-bearing plate for foundation bearing capacity detection described in Embodiment 2 of the present utility model.

[0026] 1. Bearing seat; 2. First-stage horizontal load-bearing plate; 3. Second-stage horizontal load-bearing plate; 4. Third-stage horizontal load-bearing plate;

[0027] 11. Top plate; 12. Intermediate column; 13. Bottom plate; 14. Reinforcing rib plate;

[0028] 21. First embedded internal thread sleeve; 22. First internal bolt; 23. First internal nut; 24. First external bolt; 25. First external nut; 26. First internal horizontal embedded lifting hook;

[0029] 31. Second embedded internal thread sleeve; 32. Second bolt; 33. Second nut; 34. Second internal horizontal embedded lifting hook;

[0030] 41. Third embedded internal thread sleeve; 42. Third internal horizontal embedded lifting hook;

[0031] 141. Top edge; 142. Bottom edge; 143. Straight edge. Detailed implementation manners

[0032] It should be noted that, without conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0033] For the convenience of understanding and description, the following description of the present utility model adopts an absolute positional relationship. Without special explanation, the orientation word "up" represents Figure 1 the upper side direction in Figure 1 the lower side direction in Figure 1 the left side direction in Figure 1 the right side direction in Figure 1 the front represents the direction perpendicular to Figure 1 the paper surface and pointing to the inside of the paper surface, and the orientation word "rear" represents the direction perpendicular to

[0034] Embodiment 1

[0035] As Figures 1 to 3As shown in the figure, the multi-stage assembled bearing plate for foundation bearing capacity detection according to the embodiment of the present utility model includes a bearing seat 1, a first-stage horizontal bearing plate 2, and a second-stage horizontal bearing plate 3 that are stacked in sequence from top to bottom. The bearing seat 1 and the first-stage horizontal bearing plate 2 are detachably connected, the first-stage horizontal bearing plate 2 and the second-stage horizontal bearing plate 3 are detachably connected, and the projected area of the second-stage horizontal bearing plate 3 on the horizontal plane is larger than the projected area of the first-stage horizontal bearing plate 2 on the horizontal plane.

[0036] The multi-stage assembled bearing plate for foundation bearing capacity detection includes a bearing seat and multiple-stage horizontal bearing plates. The number of the multiple-stage horizontal bearing plates can be one or more. In this embodiment, there are two multiple-stage horizontal bearing plates, specifically, the first-stage horizontal bearing plate 2 and the second-stage horizontal bearing plate 3. The bearing seat and the multiple-stage horizontal bearing plates are detachably connected to each other, and can be moved and assembled into the multi-stage assembled bearing plate for foundation bearing capacity detection as needed. It can not only meet the different requirements for the size of the bearing plate in foundation bearing capacity detection, but also be reused, which is convenient for hoisting and transportation, and is also convenient for on-site layout and recycling of the bearing plate. At the same time, it expands the detection range and depth of foundation bearing capacity.

[0037] As Figures 1 to 3 shown in the figure, the bearing seat 1 is a steel structure member. The bearing seat 1 includes a top plate 11, an intermediate column 12, and a bottom plate 13 in sequence from top to bottom. Both the top plate 11 and the bottom plate 13 are horizontal circular (or rectangular) plate-like structures, and the intermediate column 12 is a vertical circular (or rectangular) columnar structure. Preferably, both the top plate 11 and the bottom plate 13 are circular plate-like structures, and the intermediate column 12 is a cylindrical structure. The axis of the bearing seat 1, the axis of the top plate 11, the axis of the intermediate column 12, and the axis of the bottom plate 13 coincide. The bottom plate 13 and the first-stage horizontal bearing plate 2 are stacked up and down, and the bottom plate 13 and the first-stage horizontal bearing plate 2 are detachably connected.

[0038] The outer diameter of the top plate 11 is larger than the outer diameter of the intermediate column 12, the outer diameter of the top plate 11 is smaller than the outer diameter of the bottom plate 13, the projected area of the bottom plate 13 on the horizontal plane is smaller than the projected area of the first-stage horizontal bearing plate 2 on the horizontal plane. The bearing seat 1 further includes a plurality of reinforcing rib plates 14, and the plurality of reinforcing rib plates 14 are evenly spaced along the circumferential direction of the intermediate column 12. The top plate 11, the bottom plate 13, and the reinforcing rib plates 14 are all steel plates, and the intermediate column 12 is a hollow steel cylinder structure. The number of the reinforcing rib plates 14 can be flexibly adjusted according to the applied load situation. The bearing seat 1 has the characteristics of stable structure and strong bearing capacity. The pressure of the upper jack can be transmitted to the underlying foundation through the bearing seat 1, the first-stage horizontal bearing plate 2, and the second-stage horizontal bearing plate 3 in sequence.

[0039] As Figures 1 to 4As shown in the figure, the reinforcing rib plate 14 is a vertical steel plate. The structure of each reinforcing rib plate 14 is basically the same. The reinforcing rib plate 14 is a right trapezoid. A weight-reducing through hole can be provided inside the reinforcing rib plate 14. The reinforcing rib plate 14 extends along the diameter direction of the middle column 12. The top edge 141 of the reinforcing rib plate 14 is fixedly connected (welded) to the lower surface of the top plate 11 in a matching manner. The bottom edge 142 of the reinforcing rib plate 14 is fixedly connected (welded) to the upper surface of the bottom plate 13 in a matching manner. The straight edge 143 of the reinforcing rib plate 14 is fixedly connected (welded) to the outer peripheral surface of the middle column 12 in a matching manner.

[0040] In the middle of the upper surface of the first-stage horizontal bearing plate 2, a first pre-embedded internal thread sleeve 21 is provided. The first pre-embedded internal thread sleeve 21 is pre-embedded in the first-stage horizontal bearing plate 2. The bottom plate 13 of the bearing seat 1 and the first-stage horizontal bearing plate 2 are connected by a plurality of first internal bolts 22 and a plurality of first internal nuts 23. The use of bolt and nut connection has the advantages of convenient connection and disassembly.

[0041] The first internal bolt 22 passes through the bottom plate 13. A through hole for the first internal bolt 22 to pass through is provided in the bottom plate 13. The first internal bolt 22 is located at the edge of the bottom plate 13. A plurality of first internal bolts 22 are evenly spaced along the circumferential direction of the bottom plate 13. The first internal bolt 22 is located outside the middle column 12. The first internal bolt 22 is threadedly connected to the first pre-embedded internal thread sleeve 21.

[0042] On the upper surface of the second-stage horizontal bearing plate 3, a second pre-embedded internal thread sleeve 31 is provided. The first-stage horizontal bearing plate 2 and the second-stage horizontal bearing plate 3 are connected by a plurality of first external bolts 24 and a plurality of first external nuts 25. The use of bolt and nut connection has the advantages of convenient connection and disassembly.

[0043] The first external bolt 24 passes through the first-stage horizontal bearing plate 2. A through hole for the first external bolt 24 to pass through is provided in the first-stage horizontal bearing plate 2. The first external bolt 24 is threadedly connected to the second pre-embedded internal thread sleeve 31. The first external bolt 24 is located at the edge of the first-stage horizontal bearing plate 2. A plurality of first external bolts 24 are evenly spaced along the circumferential direction of the first-stage horizontal bearing plate 2. The first external bolt 24 is located outside the first internal bolt 22.

[0044] As Figures 1 to 3 shown, both the first-stage horizontal bearing plate 2 and the second-stage horizontal bearing plate 3 are of reinforced concrete structure. The projections of the first-stage horizontal bearing plate 2 and the second-stage horizontal bearing plate 3 on the horizontal plane are both rectangles. The four sides of the projection of the first-stage horizontal bearing plate 2 on the horizontal plane and the four sides of the projection of the second-stage horizontal bearing plate 3 on the horizontal plane are correspondingly parallel. The centers of the projections of the first-stage horizontal bearing plate 2 and the second-stage horizontal bearing plate 3 on the horizontal plane are both located on the axis of the bearing seat 1. Alternatively, the projections of the first-stage horizontal bearing plate 2 and the second-stage horizontal bearing plate 3 on the horizontal plane can also be circular.

[0045] On the upper surface of the first-level horizontal bearing plate 2, there are multiple first inner horizontal embedded lifting hooks 26 and multiple first hook grooves. The setting of the first inner horizontal embedded lifting hooks 26 can facilitate the movement of the first-level horizontal bearing plate 2, and the setting of the first hook grooves can protect the first inner horizontal embedded lifting hooks 26. The first inner horizontal embedded lifting hooks 26 are located in the first hook grooves one by one, and the first hook grooves are of hemispherical structure. The upper ends of the first inner horizontal embedded lifting hooks 26 are flush with the upper surface of the first-level horizontal bearing plate 2.

[0046] On the upper surface of the second-level horizontal bearing plate 3, there are multiple second inner horizontal embedded lifting hooks 34 and multiple second hook grooves. The setting of the second inner horizontal embedded lifting hooks 34 can facilitate the movement of the second-level horizontal bearing plate 3, and the setting of the second hook grooves can protect the second inner horizontal embedded lifting hooks 34. The second inner horizontal embedded lifting hooks 34 are located in the second hook grooves one by one, and the second hook grooves are of hemispherical structure. The second inner horizontal embedded lifting hooks 34 are flush with the upper surface of the second-level horizontal bearing plate 3.

[0047] The working process of the multi-stage assembled bearing plate for foundation bearing capacity detection is introduced below.

[0048] Select the first-level horizontal bearing plate 2 and the second-level horizontal bearing plate 3 with appropriate sizes according to needs. First, lift and place the second-level horizontal bearing plate 3 to the required position, and then lift and place the first-level horizontal bearing plate 2 on the second-level horizontal bearing plate 3. The centroid of the first-level horizontal bearing plate 2 coincides with the centroid of the second-level horizontal bearing plate 3 in the vertical direction. Then, lift and place the bearing seat 1 on the first-level horizontal bearing plate 2. The centroid of the bearing seat 1 coincides with the centroid of the first-level horizontal bearing plate 2 in the vertical direction.

[0049] The bottom plate 13 of the bearing seat 1 is connected to the first-level horizontal bearing plate 2 through multiple first inner bolts 22 and multiple first inner nuts 23. The first-level horizontal bearing plate 2 and the second-level horizontal bearing plate 3 are connected through multiple first outer bolts 24 and multiple first outer nuts 25.

[0050] After the multi-stage assembled bearing plate for foundation bearing capacity detection is assembled, the foundation bearing capacity detection can be carried out. The specific content of the foundation bearing capacity detection is the same as that in the prior art. For the sake of saving space, the present invention will not introduce it in detail. After the test, disassemble the bearing seat 1, the first-level horizontal bearing plate 2 and the second-level horizontal bearing plate 3, and repeat the assembly steps at the subsequent detection positions.

[0051] The design calculation of the multi-stage assembled bearing plate for foundation bearing capacity detection should meet the following requirements:

[0052] The area of the lowermost load-bearing plate shall be calculated and determined according to the maximum loading value and the characteristic value of the foundation bearing capacity. The area of the non-lowermost load-bearing plate shall be determined according to the punching range of the column. The thickness and reinforcement of the precast reinforced concrete load-bearing plate shall be calculated and determined according to the bending resistance, shear resistance and punching shear resistance. The thickness of the top plate 11, the height and thickness of the stiffening rib plate 14 shall be calculated and determined according to the bending resistance and shear resistance. The diameter and quantity of the bolts shall be calculated and determined according to the shear resistance calculation of the interface between the two-stage load-bearing plates. The diameter of the lifting hook shall be calculated and determined according to the weight of the load-bearing plate.

[0053] Embodiment 2

[0054] This embodiment is an improvement on Embodiment 1. The main difference between this embodiment and Embodiment 1 is that, as Figure 5 shown, the multi-stage assembled load-bearing plate for foundation bearing capacity detection further includes a third-stage horizontal load-bearing plate 4. The projected area of the third-stage horizontal load-bearing plate 4 on the horizontal plane is larger than the projected area of the second-stage horizontal load-bearing plate 3 on the horizontal plane. The second-stage horizontal load-bearing plate 3 and the third-stage horizontal load-bearing plate 4 are stacked downward. The first-stage horizontal load-bearing plate 2 and the third-stage horizontal load-bearing plate 4 are detachably connected.

[0055] The upper surface of the third-stage horizontal load-bearing plate 4 is provided with a third embedded internal thread sleeve 41. The second-stage horizontal load-bearing plate 3 and the third-stage horizontal load-bearing plate 4 are connected by a plurality of second bolts 32 and a plurality of second nuts 33. The use of bolt and nut connection has the advantages of convenient connection and disassembly.

[0056] The second bolt 32 passes through the second-stage horizontal load-bearing plate 3. A through hole for the second bolt 32 to pass through is provided in the second-stage horizontal load-bearing plate 3. The second bolt 32 is threadedly connected with the third embedded internal thread sleeve 41. The second bolt 32 is located at the edge of the second-stage horizontal load-bearing plate 3. The plurality of second bolts 32 are evenly spaced along the circumferential direction of the second-stage horizontal load-bearing plate 3.

[0057] The third-stage horizontal load-bearing plate 4 is of reinforced concrete structure. The projection of the third-stage horizontal load-bearing plate 4 on the horizontal plane is rectangular. The four sides of the second-stage horizontal load-bearing plate 3 and the four sides of the third-stage horizontal load-bearing plate 4 are correspondingly parallel. The center of the projection of the third-stage horizontal load-bearing plate 4 on the horizontal plane is located on the axis of the bearing seat 1. The upper surface of the third-stage horizontal load-bearing plate 4 is provided with a plurality of third internal horizontal embedded lifting hooks 42 and a plurality of third hook grooves. The third internal horizontal embedded lifting hooks 42 are correspondingly located in the third hook grooves. The third hook grooves are of hemispherical structure. The provision of the third internal horizontal embedded lifting hooks 42 can facilitate the movement of the third-stage horizontal load-bearing plate 4, and the provision of the third hook grooves can protect the third internal horizontal embedded lifting hooks 42.

[0058] The projection of the third-level horizontal bearing plate 4 on the horizontal plane can also be circular, and the upper end of the third inner horizontal embedded hook 42 is flush with the upper surface of the third-level horizontal bearing plate 4. In addition, the multi-level assembled bearing plate for foundation bearing capacity detection further includes more horizontal bearing plates, for example, a fourth-level horizontal bearing plate, a fifth-level horizontal bearing plate, a sixth-level horizontal bearing plate, etc. When in use, the bearing seat 1, the first-level horizontal bearing plate 2 to the Nth-level horizontal bearing plate can be movably arranged from top to bottom as required, and two adjacent horizontal bearing plates are detachably connected.

[0059] Other technical features in this embodiment are the same as those in Embodiment 1. For the sake of saving space, this embodiment will not be introduced in detail.

[0060] As described above, the above are only specific embodiments of the present invention, and the scope of implementation of the invention cannot be limited by them. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the scope of protection of the present invention patent, should still fall within the scope covered by this patent. In addition, the technical features in the present invention, between technical features, between technical features and technical solutions, and between technical solutions can be freely combined and used.

Claims

1. A multi-stage assembled bearing plate for foundation bearing capacity detection, characterized in that, The multi-stage assembled bearing plate for foundation bearing capacity detection includes a bearing seat (1), a first-stage horizontal bearing plate (2), and a second-stage horizontal bearing plate (3) that are stacked in sequence from top to bottom. The bearing seat (1) and the first-stage horizontal bearing plate (2) are detachably connected, the first-stage horizontal bearing plate (2) and the second-stage horizontal bearing plate (3) are detachably connected, and the projected area of the second-stage horizontal bearing plate (3) on the horizontal plane is larger than the projected area of the first-stage horizontal bearing plate (2) on the horizontal plane.

2. The multi-stage assembled bearing plate for foundation bearing capacity detection according to claim 1, wherein, The bearing seat (1) includes a top plate (11), an intermediate column (12), and a bottom plate (13) in sequence from top to bottom. The axes of the top plate (11), the intermediate column (12), and the bottom plate (13) coincide, and the bottom plate (13) is detachably connected to the first-stage horizontal bearing plate (2).

3. The multi-stage assembled bearing plate for foundation bearing capacity detection according to claim 2, wherein The outer diameter of the top plate (11) is larger than the outer diameter of the intermediate column (12), the outer diameter of the top plate (11) is smaller than the outer diameter of the bottom plate (13), the projected area of the bottom plate (13) on the horizontal plane is smaller than the projected area of the first-stage horizontal bearing plate (2) on the horizontal plane, and the bearing seat (1) further includes a plurality of reinforcing rib plates (14). The plurality of reinforcing rib plates (14) are evenly spaced along the circumferential direction of the intermediate column (12).

4. The multi-stage assembled bearing plate for foundation bearing capacity detection according to claim 3, characterized in that, The intermediate column (12) is of a cylindrical structure, the reinforcing rib plate (14) is a right trapezoid, the top side (141) of the reinforcing rib plate (14) is fixedly connected and matched with the lower surface of the top plate (11), the bottom side (142) of the reinforcing rib plate (14) is fixedly connected and matched with the upper surface of the bottom plate (13), and the straight side (143) of the reinforcing rib plate (14) is fixedly connected and matched with the outer peripheral surface of the intermediate column (12).

5. The multi-stage assembled bearing plate for foundation bearing capacity detection according to claim 2, wherein, A first embedded internal thread sleeve (21) is provided in the middle of the upper surface of the first-stage horizontal bearing plate (2). The bottom plate (13) of the bearing seat (1) and the first-stage horizontal bearing plate (2) are connected by a first internal bolt (22) and a first internal nut (23). The first internal bolt (22) passes through the bottom plate (13), and the first internal bolt (22) is threadedly connected to the first embedded internal thread sleeve (21).

6. The multi-stage assembled bearing plate for foundation bearing capacity detection according to claim 5, characterized in that, A second embedded internal thread sleeve (31) is provided on the upper surface of the second-stage horizontal bearing plate (3). The first-stage horizontal bearing plate (2) and the second-stage horizontal bearing plate (3) are connected by a first external bolt (24) and a first external nut (25). The first external bolt (24) passes through the first-stage horizontal bearing plate (2), the first external bolt (24) is threadedly connected to the second embedded internal thread sleeve (31), and the first external bolt (24) is located at the edge of the first-stage horizontal bearing plate (2).

7. The multi-stage assembled bearing plate for foundation bearing capacity detection according to claim 6, characterized in that, The first-level horizontal bearing plate (2) and the second-level horizontal bearing plate (3) are both of reinforced concrete structure. The projections of the first-level horizontal bearing plate (2) and the second-level horizontal bearing plate (3) on the horizontal plane are both rectangles. The four sides of the first-level horizontal bearing plate (2) and the four sides of the second-level horizontal bearing plate (3) are correspondingly parallel. The centers of the projections of the first-level horizontal bearing plate (2) and the second-level horizontal bearing plate (3) on the horizontal plane are both located on the axis of the bearing seat (1). The upper surface of the first-level horizontal bearing plate (2) is provided with a first internal horizontal embedded lifting hook (26), and the upper surface of the second-level horizontal bearing plate (3) is provided with a second internal horizontal embedded lifting hook (34).

8. The multi - stage assembled bearing plate for foundation bearing capacity detection according to claim 1, characterized in that, The multi-level assembled bearing plate for foundation bearing capacity detection further includes a third-level horizontal bearing plate (4). The projected area of the third-level horizontal bearing plate (4) on the horizontal plane is larger than the projected area of the second-level horizontal bearing plate (3) on the horizontal plane. The second-level horizontal bearing plate (3) and the third-level horizontal bearing plate (4) are stacked downward, and the first-level horizontal bearing plate (2) and the third-level horizontal bearing plate (4) are detachably connected.

9. The multi-stage assembled bearing plate for detecting the bearing capacity of foundation soil according to claim 8, wherein, The upper surface of the third-level horizontal bearing plate (4) is provided with a third embedded internal thread sleeve (41). The second-level horizontal bearing plate (3) and the third-level horizontal bearing plate (4) are connected by a second bolt (32) and a second nut (33). The second bolt (32) passes through the second-level horizontal bearing plate (3), and the second bolt (32) is threadedly connected with the third embedded internal thread sleeve (41). The second bolt (32) is located at the edge of the second-level horizontal bearing plate (3).

10. The multi - stage assembled bearing plate for foundation bearing capacity detection according to claim 9, characterized in that, The third-level horizontal bearing plate (4) is of reinforced concrete structure. The projection of the third-level horizontal bearing plate (4) on the horizontal plane is a rectangle. The four sides of the second-level horizontal bearing plate (3) and the four sides of the third-level horizontal bearing plate (4) are correspondingly parallel. The center of the projection of the third-level horizontal bearing plate (4) on the horizontal plane is located on the axis of the bearing seat (1). The upper surface of the third-level horizontal bearing plate (4) is provided with a third internal horizontal embedded lifting hook (42).

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