BIM-based deep foundation pit excavation and support structure

Abstract

The utility model provides a kind of based on BIM technique deep foundation pit excavation and supporting structure, it is related to building construction technology field, including first supporting plate, second supporting plate and third supporting plate, the first supporting plate and second supporting plate are symmetrically set on the sidewall of foundation pit, top pressure fixing component for the setting position of first supporting plate and second supporting plate is provided between the first supporting plate and second supporting plate, top pressure fixing component is provided with the drive assembly of driving top pressure fixing component and moving bidirectionally. The utility model cooperates with the use of first supporting plate, second supporting plate, third supporting plate, and protects the sidewall of foundation pit, prevents the situation that soil body on the sidewall of foundation pit falls or collapses, the setting position of first supporting plate and second supporting plate is fixed by top pressure fixing component, and it will not produce larger vibration to the sidewall of foundation pit, effectively prevent the situation that the sidewall of foundation pit falls due to excessive vibration force.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a deep foundation pit excavation and support structure based on BIM technology. Background Technology

[0002] During deep foundation pit construction, BIM models can achieve three-dimensional visualization and collision detection, integrating information such as the support structure, dewatering system, and surrounding pipelines of the deep foundation pit into a three-dimensional model, intuitively presenting spatial relationships, and identifying collisions and conflicts between the support and pipelines and support structures in advance, thus avoiding construction rework.

[0003] BIM models enable full-process visualization, collaborative and refined management of deep foundation pits, significantly reducing construction risks, improving efficiency and controlling costs.

[0004] When installing support structures on the sidewalls of a foundation pit, it is usually necessary to drive several fixing blocks on the support plate into the sidewalls of the foundation pit. The vibration generated by this impact can easily cause the soil on the sidewalls of the foundation pit to fall off, thus creating a safety hazard. Utility Model Content

[0005] To address the technical problem in existing technologies where multiple fixing blocks on the support plate are driven into the sidewall of the foundation pit, the vibration generated by this impact can easily cause the soil on the sidewall of the foundation pit to fall off, this utility model provides a deep foundation pit excavation and support structure based on BIM technology.

[0006] This utility model provides a deep foundation pit excavation and support structure based on BIM technology, which adopts the following technical solution: The deep foundation pit excavation and support structure based on BIM technology includes a first support plate, a second support plate, and a third support plate for protecting the sidewalls of the foundation pit. The first and second support plates are symmetrically arranged on the sidewalls of the foundation pit. There are two third support plates, which are symmetrically arranged on two other sidewalls of the foundation pit. The ends of the first and second support plates are connected by the third support plates. A top-pressure fixing component is provided between the first and second support plates to fix their positions. The top-pressure fixing component is equipped with a drive component to drive the top-pressure fixing component to move in both directions.

[0007] By adopting the above technical solution, the sidewalls of the foundation pit are protected by the combined use of the first, second, and third support plates, preventing the soil on the sidewalls from falling or collapsing, thus ensuring the safety of construction personnel inside the foundation pit and the safe use of equipment. The first and second support plates are fixed in place by the top-pressure fixing components, which will not cause significant vibration to the sidewalls of the foundation pit, effectively preventing the sidewalls of the foundation pit from falling off due to excessive vibration.

[0008] Furthermore, the top pressure fixing assembly includes a drive sleeve, a first push rod and a second push rod screwed to both ends of the drive sleeve. The drive sleeve has threaded holes with opposite helical directions at both ends. One end of the first push rod is threadedly connected to one end of the drive sleeve, and the other end of the first push rod is fixedly mounted on the plate by bolts. One end of the second push rod is threadedly connected to the other end of the drive sleeve, and the other end of the second push rod is fixedly mounted on the second support plate by bolts.

[0009] By adopting the above technical solution, the first push rod and the second push rod can be driven to move synchronously by rotating the drive sleeve, thereby pressing and fixing the setting positions of the first support plate and the second support plate.

[0010] Furthermore, the first support plate and the second support plate have the same structure but are set in opposite directions. The first support plate includes a plate body for protecting the side wall of the foundation pit, and a bottom plate is provided at the bottom of the plate body. The bottom plate is fixed to the bottom wall of the foundation pit by a first fixing nail.

[0011] By adopting the above technical solution, the bottom of the first support plate can be fixedly installed on the bottom wall of the foundation pit.

[0012] Furthermore, the bottom of the top-pressure fixing component is provided with a support beam that provides upward support for the top-pressure fixing component; the bottom of the support beam is fixedly installed at the bottom of the foundation pit by a pin, and a connecting sleeve is welded to the top of the support beam. The connecting sleeve is sleeved on the outside of the drive sleeve and forms a rotatable connection with it. A first sprocket is fixedly sleeved on the outer wall of the drive sleeve.

[0013] By adopting the above technical solution, the support beam can provide upward support to the center position of the top pressure fixing component, preventing the center position of the top pressure fixing component from bending due to excessive stress, and forming a rotational connection between the connecting sleeve and the drive sleeve, thus preventing the connecting sleeve from generating frictional resistance against the outer wall of the drive sleeve when the drive sleeve rotates.

[0014] Furthermore, a connecting seat is provided on the side wall of the support beam. The connecting seat has a mounting groove at its center. A connecting shaft is rotatably connected to the connecting seat. A turntable is fixedly sleeved on the connecting shaft. The turntable is located in the mounting groove. A second sprocket is fixedly connected to the end of the connecting shaft after passing through the connecting seat. A chain is connected between the second sprocket and the first sprocket.

[0015] By adopting the above technical solution: by rotating the connecting seat, the connecting shaft drives the second sprocket to rotate, and finally the chain drives the first sprocket to rotate, so that the drive sleeve rotates, and the extension length of the first push rod and the second push rod is adjusted.

[0016] Furthermore, the third support plate includes a first main board body and a second main board body that are slidably connected. Multiple insert plates are evenly distributed on one end of the first main board body near the second main board body. Multiple sliding grooves that cooperate with the insert plates are opened on one side of the second main board body near the first main board body. A baffle is welded on the insert plate. The insert plate is slidably disposed in the sliding groove. The baffle covers the outer wall of the second main board body.

[0017] By adopting the above technical solution, the length of the third support plate can be adjusted by sliding the insert plate in the groove during use.

[0018] Furthermore, connecting blocks are welded to the ends of the first support plate and the second support plate. The connecting blocks on the first support plate are bolted to the edge of the first main body, and the connecting blocks in the second support plate are bolted to the edge of the second main body.

[0019] By adopting the above technical solution: when moving the first and second support plates, the first main body slides on the second main body, so that the length of the third support plate can be adjusted according to the distance between the first and second support plates.

[0020] Furthermore, the baffle and the insert plate are fixedly installed on the side wall of the pit by the second fixing nail, and the first main body is fixedly installed on the side wall of the pit under the pushing force of the baffle.

[0021] By adopting the above technical solution, the position of the third support plate is fixed by the above structure.

[0022] In summary, the beneficial effects of this utility model are as follows: This utility model, by setting up a top pressure fixing component and a driving component, uses a BIM model to simulate the construction of deep foundation pits and support structures during use, and optimizes and handles potential problems that may occur during construction. After the deep foundation pit is excavated, two third support plates are installed on two opposite side walls of the foundation pit, and the first and second support plates are installed on the other two opposite side walls of the foundation pit. The support beam is installed at the center of the bottom of the foundation pit. The two ends of the top-pressing fixing assembly are locked to the first and second support plates respectively with bolts. The turntable in the drive assembly is rotated so that the first and second push rods in the top-pressing fixing assembly press the first and second support plates against the side walls of the foundation pit. This structural design can protect the foundation pit, preventing soil from falling or collapsing on the pit sidewalls, thus ensuring the safety of construction personnel inside the pit and the safe use of equipment within the pit. It also prevents excessive vibration of the pit sidewalls, effectively preventing them from falling off due to excessive vibration. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is an exploded view of the top-pressure fixing component of this utility model; Figure 4 This utility model Figure 1 Enlarged view of part A in the middle; Figure 5 This is an exploded view of the third support plate of this utility model.

[0024] In the diagram: 1. First support plate; 2. Second support plate; 3. Third support plate; 4. Top pressure fixing assembly; 5. Drive assembly; 6. Support beam; 11. Plate body; 12. Base plate; 13. First fixing nail; 14. Connecting block; 31. First main plate body; 32. Second main plate body; 35. Second fixing nail; 41. First push rod; 42. Second push rod; 43. Drive sleeve; 51. First sprocket; 52. Chain; 53. Second sprocket; 54. Connecting shaft; 55. Turntable; 61. Connecting sleeve; 62. Connecting seat; 312. Insert plate; 313. Baffle; 321. Slide groove. Detailed Implementation

[0025] The present invention will be further described below with reference to specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0026] Reference Figure 1As shown, this utility model discloses a deep foundation pit excavation and support structure based on BIM technology, including a first support plate 1, a second support plate 2, and a third support plate 3 for protecting the sidewalls of the foundation pit. The first support plate 1 and the second support plate 2 are symmetrically arranged on the sidewalls of the foundation pit. There are two third support plates 3, which are symmetrically arranged on the other two sidewalls of the foundation pit. The ends of the first support plate 1 and the second support plate 2 are connected by the third support plates 3. Through the coordinated use of the first support plate 1, the second support plate 2, and the third support plate 3, the sidewalls of the foundation pit are protected to prevent the soil on the sidewalls of the foundation pit from falling or collapsing, thereby ensuring the safety of construction personnel in the foundation pit and the safe use of equipment in the foundation pit. Specifically, refer to Figure 1 and Figure 2 As shown, the first support plate 1 and the second support plate 2 have the same structure but are installed in opposite directions. The structure of the first support plate 1 will now be described in detail. The first support plate 1 includes a plate body 11 that protects the sidewall of the foundation pit. A bottom plate 12 is provided at the bottom of the plate body 11, and the bottom plate 12 is fixed to the bottom wall of the foundation pit by a first fixing nail 13. A top-pressing fixing assembly 4 is provided between the first support plate 1 and the second support plate 2. A driving assembly 5 is provided on the top-pressing fixing assembly 4 to drive the top-pressing fixing assembly 4 to move bidirectionally. In use, the driving assembly 5 drives both ends of the top-pressing fixing assembly 4 to move simultaneously, so that both ends of the top-pressing fixing assembly 4 exert bidirectional pressure on the first support plate 1 and the second support plate 2, allowing the first support plate 1 and the second support plate 2 to adhere tightly to the sidewall of the foundation pit, thereby achieving a protective effect.

[0027] Reference Figure 2 and Figure 3 As shown, the top-pressure fixing assembly 4 includes a drive sleeve 43, a first push rod 41 and a second push rod 42 screwed to both ends of the drive sleeve 43. The drive sleeve 43 has threaded holes with opposite helical directions at both ends. One end of the first push rod 41 is threadedly connected to one end of the drive sleeve 43, and the other end of the first push rod 41 is fixedly mounted on the plate 11 by bolts. One end of the second push rod 42 is threadedly connected to the other end of the drive sleeve 43, and the other end of the second push rod 42 is fixedly mounted on the second support plate 2 by bolts. By rotating the drive sleeve 43, the first push rod 41 and the second push rod 42 can be driven to move synchronously.

[0028] Moreover, referencing Figure 4 As shown, a first sprocket 51 is fixedly sleeved on the outer wall of the drive sleeve 43. Preferably, there are two first sprockets 51, which are symmetrically welded to both sides of the drive sleeve 43 so that the two first sprockets 51 rotate simultaneously, thereby facilitating the simultaneous rotation of both ends of the drive sleeve 43.

[0029] The bottom of the top-pressure fixing component 4 is provided with a support beam 6 to support the center position of the top-pressure fixing component 4 upwards, preventing the center position of the top-pressure fixing component 4 from bending due to excessive stress. The bottom of the support beam 6 is fixed to the bottom of the foundation pit by a pin, and the top of the support beam 6 is welded with a connecting sleeve 61. The connecting sleeve 61 is sleeved on the outside of the drive sleeve 43 and forms a rotatable connection with it. By forming a rotatable connection between the connecting sleeve 61 and the drive sleeve 43, frictional resistance between the connecting sleeve 61 and the outer wall of the drive sleeve 43 is prevented when the drive sleeve 43 rotates.

[0030] A connecting seat 62 is also provided on the side wall of the support beam 6. The connecting seat 62 has a mounting groove at its center. A connecting shaft 54 ​​is rotatably connected to the connecting seat 62. A turntable 55 is fixedly sleeved on the connecting shaft 54. The turntable 55 is located in the mounting groove. The end of the connecting shaft 54 ​​passes through the connecting seat 62 and is fixedly connected to a second sprocket 53. A chain 52 connects the second sprocket 53 and the first sprocket 51. By rotating the connecting seat 62, the connecting shaft 54 ​​drives the second sprocket 53 to rotate. Finally, the chain 52 drives the first sprocket 51 to rotate, thereby rotating the drive sleeve 43 and adjusting the extension length of the first push rod 41 and the second push rod 42.

[0031] Reference Figure 1 and Figure 5 As shown, the third support plate 3 includes a first main plate 31 and a second main plate 32 that are slidably connected. Multiple insert plates 312 are evenly distributed on one end of the first main plate 31 near the second main plate 32. Multiple sliding grooves 321 that mate with the insert plates 312 are formed on one side of the second main plate 32 near the first main plate 31. A baffle 313 is welded onto the insert plate 312. The insert plate 312 is slidably disposed within the sliding groove 321, and the baffle 313 covers the outer wall of the second main plate 32. In use, the length of the third support plate 3 is adjusted by sliding the insert plate 312 within the sliding groove 321.

[0032] Furthermore, connecting blocks 14 are welded to the ends of the first support plate 1 and the second support plate 2. The connecting blocks 14 on the first support plate 1 are bolted to the edge of the first main body 31, and the connecting blocks 14 in the second support plate 2 are bolted to the edge of the second main body 32. When the first support plate 1 and the second support plate 2 are moved, the first main body 31 slides on the second main body 32, thereby allowing the length of the third support plate 3 to be adjusted according to the distance between the first support plate 1 and the second support plate 2. The baffle 313 and the insert plate 312 are fixedly installed on the side wall of the pit by the second fixing nail 35, and the first main body 31 is also fixedly installed on the side wall of the pit under the pushing force of the baffle 313.

[0033] In using this invention, the construction of the deep foundation pit and support structure is simulated using a BIM model, and potential problems during construction are optimized and addressed. After the deep foundation pit is excavated, two third support plates 3 are installed on two opposite side walls of the foundation pit, and the first support plate 1 and the second support plate 2 are installed on the other two opposite side walls of the foundation pit. The connecting block 14 is pressed against the outer wall of the third support plate 3 and locked with bolts. The support beam 6 is installed at the center of the bottom of the foundation pit. The two ends of the top-pressing fixing component 4 are locked to the first support plate 1 and the second support plate 2 with bolts. The turntable 55 in the drive component 5 is rotated, causing the first push rod 41 and the second push rod 42 in the top-pressing fixing component 4 to press the first support plate 1 and the second support plate 2 against the side walls of the foundation pit. Then, the support beam 6 and the bottom plate 12 are fixed to the bottom of the foundation pit with pins, and the third support plate 3 is fixed to the side walls of the foundation pit with pins. This structural design can protect the foundation pit, preventing soil from falling or collapsing on the pit sidewalls, thus ensuring the safety of construction personnel inside the pit and the safe use of equipment within the pit. It also prevents excessive vibration of the pit sidewalls, effectively preventing them from falling off due to excessive vibration. The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A deep foundation pit excavation and support structure based on BIM technology, comprising a first support plate (1), a second support plate (2), and a third support plate (3) for protecting the sidewalls of the foundation pit, characterized in that, The first support plate (1) and the second support plate (2) are symmetrically arranged on the side wall of the foundation pit. There are two third support plates (3). The two third support plates (3) are symmetrically arranged on the other two side walls of the foundation pit. The ends of the first support plate (1) and the second support plate (2) are connected by the third support plate (3). A top-pressing fixing component (4) is provided between the first support plate (1) and the second support plate (2) to fix the setting position of the first support plate (1) and the second support plate (2). A driving component (5) is provided on the top-pressing fixing component (4) to drive the top-pressing fixing component (4) to move in both directions.

2. The deep foundation pit excavation and support structure based on BIM technology according to claim 1, characterized in that, The top pressure fixing assembly (4) includes a drive sleeve (43), a first push rod (41) and a second push rod (42) screwed to both ends of the drive sleeve (43). The drive sleeve (43) has threaded holes with opposite spiral directions at both ends. One end of the first push rod (41) is threaded to one end of the drive sleeve (43), and the other end of the first push rod (41) is fixedly installed on the plate (11) by bolts. One end of the second push rod (42) is threaded to the other end of the drive sleeve (43), and the other end of the second push rod (42) is fixedly installed on the second support plate (2) by bolts.

3. The deep foundation pit excavation and support structure based on BIM technology according to claim 1, characterized in that, The first support plate (1) and the second support plate (2) have the same structure but are set in opposite directions. The first support plate (1) includes a plate body (11) for protecting the side wall of the foundation pit. A bottom plate (12) is provided at the bottom of the plate body (11). The bottom plate (12) is fixed to the bottom wall of the foundation pit by a first fixing nail (13).

4. The deep foundation pit excavation and support structure based on BIM technology according to claim 2, characterized in that, The bottom of the top pressure fixing component (4) is provided with a support beam (6) for supporting the top pressure fixing component (4) upward; the bottom of the support beam (6) is fixedly installed at the bottom of the foundation pit by a pin, and a connecting sleeve (61) is welded to the top of the support beam (6). The connecting sleeve (61) is sleeved on the outside of the drive sleeve (43) and forms a rotatable connection with it. A first sprocket (51) is fixedly sleeved on the outer wall of the drive sleeve (43).

5. The deep foundation pit excavation and support structure based on BIM technology according to claim 4, characterized in that, A connecting seat (62) is also provided on the side wall of the support beam (6). The connecting seat (62) has a mounting groove at its center. A connecting shaft (54) is rotatably connected to the connecting seat (62). A turntable (55) is fixedly sleeved on the connecting shaft (54). The turntable (55) is located in the mounting groove. The end of the connecting shaft (54) passes through the connecting seat (62) and is fixedly connected to a second sprocket (53). A chain (52) is connected between the second sprocket (53) and the first sprocket (51).

6. The deep foundation pit excavation and support structure based on BIM technology according to claim 1, characterized in that, The third support plate (3) includes a first main plate (31) and a second main plate (32) that are slidably connected. A plurality of insert plates (312) are evenly distributed on one end of the first main plate (31) near the second main plate (32). A plurality of sliding grooves (321) that cooperate with the insert plates (312) are opened on one side of the second main plate (32) near the first main plate (31). A baffle (313) is welded on the insert plate (312). The insert plate (312) is slidably disposed in the sliding groove (321). The baffle (313) covers the outer wall of the second main plate (32).

7. The deep foundation pit excavation and support structure based on BIM technology according to claim 6, characterized in that, The ends of the first support plate (1) and the second support plate (2) are welded with connecting blocks (14). The connecting blocks (14) on the first support plate (1) are locked to the edge of the first main body (31) by bolts, and the connecting blocks (14) in the second support plate (2) are locked to the edge of the second main body (32) by bolts.

8. The deep foundation pit excavation and support structure based on BIM technology according to claim 7, characterized in that, The baffle (313) and the insert plate (312) are fixedly installed on the side wall of the pit by the second fixing nail (35), and the first main body (31) is fixedly installed on the side wall of the pit under the pushing action of the baffle (313).

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