Deep foundation pit excavation and supporting structure based on BIM technology

Abstract

The utility model relates to the field of building construction, in particular to a deep foundation pit excavation and supporting structure based on the BIM technology, which comprises a plurality of supporting plates, and two groups of fixing devices fixedly connected with a foundation pit are arranged on the supporting plates; the fixing device comprises a first fixing set, a second fixing set, a first bidirectional lead screw, a second bidirectional lead screw and a synchronous rotating mechanism used for driving the first bidirectional lead screw and the second bidirectional lead screw to rotate synchronously. The first fixing set comprises two first fixing blocks, the second fixing set comprises two second fixing blocks, the two first fixing blocks are in threaded connection with the two ends of the first bidirectional lead screw respectively, the two second fixing blocks are in threaded connection with the two ends of the second bidirectional lead screw respectively, and fixing holes allowing the first fixing blocks and the second fixing blocks to be matched in an inserted mode are formed in the foundation pit. The device has the effects that a first fixing block and a second fixing block are directly driven into the inner wall of the foundation pit, disturbance to the inner wall of the foundation pit is reduced, and then damage to the inner wall of the foundation pit is reduced.

Description

Technical Field

[0001] The present application relates to the field of building construction, and in particular to deep foundation pit excavation and support structures based on BIM technology. Background Art

[0002] During the excavation of deep foundation pits, BIM models are needed to simulate the excavation of foundation pits and the construction of supporting structures, so as to assess the problems that may arise during the construction process and take corresponding measures in advance for optimization. After the excavation of deep foundation pits is completed, supporting structures need to be set up to support the foundation pits, so as to protect the soil around the deep foundation pits from collapse and slippage, and ensure the safety of construction personnel and equipment.

[0003] The relevant centralized support structure includes a support plate and a plurality of fixed blocks arranged on one side of the support plate. The deep foundation pit is protected by driving the plurality of fixed blocks into the inner wall of the deep foundation pit and building a component for supporting the support plate on the side of the support plate away from the deep foundation pit.

[0004] With respect to the above-mentioned related technologies, the inventors believe that when the fixing blocks are driven into the inner wall of the deep foundation pit, the deep foundation pit is easily disturbed, thereby causing damage to the deep foundation pit, thereby affecting the stability of the deep foundation pit. Utility Model Content

[0005] In order to solve the problem that the deep foundation pit is easily disturbed when the fixing blocks are driven into the inner wall of the deep foundation pit, thereby causing damage to the deep foundation pit and further affecting the stability of the deep foundation pit, the present application provides a deep foundation pit excavation and support structure based on BIM technology.

[0006] The deep foundation pit excavation and support structure based on BIM technology provided in this application adopts the following technical solutions:

[0007] A deep foundation pit excavation and support structure based on BIM technology includes a plurality of support plates, on which two groups of fixing devices for fixed connection with the foundation pit are arranged; the fixing devices include a first fixing group and a second fixing group arranged on one side of the support plate, a first bidirectional lead screw and a second bidirectional lead screw rotatably arranged on one side of the support plate, and a synchronous rotation mechanism for driving the first bidirectional lead screw and the second bidirectional lead screw to rotate synchronously; the first fixing group includes two first fixing blocks, the second fixing group includes two second fixing blocks, the two first fixing blocks are respectively threadedly connected to the two ends of the first bidirectional lead screw, the two second fixing blocks are respectively threadedly connected to the two ends of the second bidirectional lead screw, and the foundation pit is provided with fixing holes for the first fixing blocks and the second fixing blocks to be plugged in and matched.

[0008] By adopting the above technical solution, the first fixed block is plugged and matched with its corresponding fixed hole; the second fixed block is plugged and matched with its corresponding fixed hole. The first bidirectional screw and the second bidirectional screw are driven to rotate synchronously by the synchronous rotation mechanism. While the first bidirectional screw rotates, it cooperates with the two first fixed blocks to slide and cooperate with the supporting plate, so that the two first fixed blocks are moved away from each other until the two first fixed blocks are pressed against the inner wall of the corresponding fixed hole; while the second bidirectional screw rotates, it cooperates with the two second fixed blocks to slide and cooperate with the supporting plate, so that the two second fixed blocks are moved away from each other until the two second fixed blocks are pressed against the inner wall of the corresponding fixed hole, thereby realizing the fixed connection between the first fixed block and the foundation pit and the fixed connection between the second fixed block and the foundation pit, and then realizing the fixed connection between the supporting plate and the foundation pit. By moving the two first fixed blocks away from each other and the two second fixed blocks away from each other, the problem of directly driving the first fixed block and the second fixed block into the inner wall of the foundation pit is solved, which reduces the disturbance to the inner wall of the foundation pit and then reduces the damage to the inner wall of the foundation pit.

[0009] Optionally, two adjacent support plates are fixedly connected by a splicing assembly;

[0010] The splicing assembly includes a splicing block arranged on one side of the support plate, a splicing groove arranged on the support plate away from the splicing block, a through hole opened on the splicing block, a latch hole opened on the support plate, and a fixed latch slidably passed through the latch hole, the splicing block is plugged into the splicing groove, the splicing groove is communicated with the latch hole, the fixed latch slidably passes through the through hole and the splicing groove, and when the splicing block is plugged into the splicing groove, the through hole is opposite to the latch hole.

[0011] By adopting the above technical solution, when two adjacent support plates need to be spliced, the splicing block is plugged into the splicing groove, and the fixed pin is slidably passed through the pin hole and the through hole in turn, thereby achieving a fixed connection between the two adjacent support plates.

[0012] Optionally, the synchronous rotation mechanism includes a first rotating rod and a second rotating rod rotatably arranged on the support plate, a first driving gear mounted on the first rotating rod, a first driven gear mounted on the first bidirectional lead screw, a second driving gear mounted on the second rotating rod, a second driven gear mounted on the second bidirectional lead screw, and a synchronous rotation assembly for driving the first rotating rod and the second rotating rod to rotate synchronously, the first driving gear meshing with the first driven gear, and the second driving gear meshing with the second driven gear.

[0013] By adopting the above technical solution, the first rotating rod and the second rotating rod are driven to rotate synchronously through synchronous rotation. When the first rotating rod rotates, the first driving gear is driven to rotate. When the first driving gear rotates, the first driven gear is driven to rotate. When the first driven gear rotates, the first bidirectional lead screw is driven to rotate. When the second rotating rod rotates, the second driving gear is driven to rotate. When the second driving gear rotates, the second driven gear is driven to rotate. When the second driven gear rotates, the second bidirectional lead screw is driven to rotate, thereby achieving the purpose of synchronous rotation of the first bidirectional lead screw and the second bidirectional lead screw.

[0014] Optionally, the synchronous rotation assembly includes a first hub mounted on the first rotating rod, a second hub mounted on the second rotating rod, and a transmission belt mounted on the first hub and the second hub.

[0015] By adopting the above technical solution, by rotating the first rotating rod, the first rotating rod drives the first hub to rotate while the first hub drives the transmission belt to rotate while the transmission belt drives the second hub to rotate while the second hub drives the second rotating rod to rotate while the second hub rotates, thereby achieving the purpose of synchronous rotation of the first rotating rod and the second rotating rod.

[0016] Optionally, a rotation limiting component for limiting the rotation of the first rotating rod is provided on the supporting plate.

[0017] By adopting the above technical solution, the rotation of the first rotating rod is limited by limiting the rotation assembly, and the rotation of the second rotating rod is limited at the same time, thereby limiting the slippage of the two first fixed blocks and limiting the slippage of the two second fixed blocks, thereby improving the stability of the two first fixed blocks and the two second fixed blocks.

[0018] Optionally, the rotation limiting assembly includes a locking ring block arranged on the support plate, a plurality of locking holes opened on the locking ring block, a through hole opened on the first rotating rod, and a locking rod slidingly passed through the through hole, and the locking rod is plugged into and fitted with the locking hole.

[0019] By adopting the above technical solution, the first rotating rod is rotated to make the two first fixing blocks press against the inner walls of the corresponding fixing holes and the two second fixing blocks press against the inner walls of the corresponding fixing holes. At this time, the locking rod is slidably passed through the through hole and plugged into the locking hole, thereby limiting the rotation of the rotating handle and further limiting the rotation of the first rotating rod.

[0020] Optionally, a supporting component for supporting the supporting plate is provided on the supporting plate.

[0021] By adopting the above technical solution, the support plate is supported by the support assembly, thereby improving the supporting effect of the support plate on the foundation pit.

[0022] Optionally, the support assembly includes a diagonal support rod arranged on the support plate, an adjustment block arranged at one end of the diagonal support rod, an adjustment screw threadedly connected to the adjustment block, an adjustment block arranged at one end of the adjustment screw, a plurality of adjustment slots opened on the adjustment block, and an expansion bolt slidably passed through the adjustment slots.

[0023] By adopting the above technical solution, the support plate is supported by the diagonal brace, and the height of the adjustment block is adjusted by rotating the adjustment block and cooperating with the threaded connection between the adjustment screw and the support block. The expansion bolt is slidably inserted into the adjustment block and then driven into the ground, thereby fixing the adjustment block to the ground.

[0024] In summary, this application includes the following beneficial technical effects:

[0025] 1. By moving the two first fixing blocks away from each other and the two second fixing blocks away from each other, the problem of directly driving the first fixing blocks and the second fixing blocks into the inner wall of the foundation pit is solved, thereby reducing the disturbance to the inner wall of the foundation pit and further reducing the damage to the inner wall of the foundation pit;

[0026] 2. The rotation of the first rotating rod is limited by the rotation limiting assembly, and the rotation of the second rotating rod is limited at the same time, thereby limiting the sliding of the two first fixed blocks and limiting the sliding of the two second fixed blocks, thereby improving the stability of the two first fixed blocks and the two second fixed blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of this embodiment;

[0028] Figure 2 It is a structural schematic diagram for showing one side of the support plate;

[0029] Figure 3 It is a partial cross-sectional view for showing the assembly relationship between the first driving gear and the first driven gear;

[0030] Figure 4 yes Figure 1 Magnified image of .

[0031] Description of reference numerals:

[0032] 1. Support plate; 2. Splicing block; 3. Splicing groove; 4. Perforation; 5. Pin hole; 6. Fixed pin; 7. First movable cavity; 8. Second movable cavity; 9. First fixed group; 91. First fixed block; 10. Second fixed group; 101. Second fixed block; 102. First bidirectional lead screw; 11. Second bidirectional lead screw; 12. First rotating cavity; 13. Second rotating cavity; 14. First rotating rod; 15. First driving gear; 16. First driven gear; 17. Second rotating rod; 18. Second driving gear; 19. Second driven gear; 20. Drive housing; 21. First wheel hub; 22. Second wheel hub; 23. Drive belt; 24. Rotating handle; 25. Locking ring block; 26. Locking hole; 27. Through hole; 28. Locking rod; 29. ​​Diagonal support rod; 30. Support block; 31. Adjusting screw; 32. Adjusting block; 33. Adjusting groove; 34. Expansion bolt. DETAILED DESCRIPTION

[0033] The present application is described in further detail below.

[0034] The present application embodiment discloses deep foundation pit excavation and support structure based on BIM technology, referring to Figure 1 , including a plurality of support plates 1 for installation on the inner wall of the foundation pit. Figure 2 and Figure 3 The support plate 1 is arranged in a rectangular shape, and a plurality of splicing blocks 2 are installed on one side of the support plate 1, and a splicing groove 3 for the splicing block 2 to be plugged in is provided on the side of the support plate 1 away from the splicing block 2. A through hole 4 is provided on the splicing block 2, and the through hole 4 runs through two opposite sides of the splicing block 2. A latch hole 5 is provided on the support plate 1, and the latch hole 5 is penetrated through the top of the support plate 1, and the latch hole 5 is communicated with the splicing groove 3. When the splicing block 2 is plugged in with the splicing groove, the through hole 4 is opposite to the latch hole 5. A fixed latch 6 is slidably penetrated through the latch hole 5, and the fixed latch 6 is slidably penetrated through the through hole 4, and the fixed latch 6 is slidably penetrated through the latch hole 5. When two adjacent support plates 1 need to be spliced, the splicing block 2 is plugged into the splicing groove 3, and the fixed pin 6 is slidably penetrated into the pin hole 5 and the through hole 4 in turn, thereby achieving a fixed connection between the two adjacent support plates 1.

[0035] Reference Figure 1 The inner wall side of the support plate 1 close to the foundation pit is provided with a first movable cavity 7 and a second movable cavity 8. Two sets of fixing devices for fixing to the foundation pit are installed on the support plate 1. Specifically, the fixing devices include a first fixing group 9 and a second fixing group 10 installed on the side of the support plate 1 close to the foundation pit, a first bidirectional lead screw 102 and a second bidirectional lead screw 11 rotatably installed on the support plate 1, and a synchronous rotation component driving the first bidirectional lead screw 102 and the second bidirectional lead screw 11 to rotate synchronously.

[0036] Among them, refer to Figure 1 The first fixing group 9 includes two first fixing blocks 91 installed on the side of the supporting plate 1 close to the foundation pit; the second fixing group 10 includes two second fixing blocks 101 installed on the side of the supporting plate 1 close to the foundation pit, the two first fixing blocks 91 are respectively threadedly connected to the two ends of the first bidirectional lead screw 102, and the two second fixing blocks 101 are respectively threadedly connected to the two ends of the second bidirectional lead screw 11. The two first fixing blocks 91 are slidably matched with the first movable cavity 7, and the two second fixing blocks 101 are slidably matched with the second movable cavity 8.

[0037] Reference Figure 1 The inner wall of the foundation pit is provided with a plurality of fixing holes, and the fixing holes are used for the first fixing block 91 and the second fixing block 101 to be plugged in and matched. First, the two first fixing blocks 91 and the two second fixing blocks 101 are plugged into the corresponding fixing holes. The first bidirectional screw 102 and the second bidirectional screw 11 are driven to rotate synchronously by the synchronous rotation mechanism. While the first bidirectional screw 102 rotates, it cooperates with the two first fixing blocks 91 to slide with the first movable cavity 7, so that the two first fixing blocks 91 are moved away from each other until the two first fixing blocks 91 are pressed against the inner wall of the corresponding fixing hole; while the second bidirectional screw 11 rotates, it cooperates with the two second fixing blocks 101 to slide with the second movable cavity 8, so that the two second fixing blocks 101 are moved away from each other until the two second fixing blocks 101 are pressed against the inner wall of the corresponding fixing hole, so as to realize the fixed connection between the first fixing block 91 and the foundation pit and the fixed connection between the second fixing block 101 and the foundation pit, and then realize the fixed connection between the support plate 1 and the inner wall of the foundation pit.

[0038] Reference Figure 1 and Figure 3 The support plate 1 is provided with a first rotating chamber 12 and a second rotating chamber 13, and the first rotating chamber 12 and the second rotating chamber 13 are communicated with the first movable chamber 7 and the second movable chamber 8 respectively. The synchronous rotation mechanism comprises a first rotating rod 14 rotatably mounted in the first rotating chamber 12, a first driving gear 15 fixedly sleeved on the first rotating rod 14, a first driven gear 16 fixedly sleeved on the first bidirectional lead screw 102, a second rotating rod 17 rotatably mounted in the second rotating chamber 13, a second driving gear 18 fixedly sleeved on the second rotating rod 17, a second driven gear 19 fixedly sleeved on the second bidirectional lead screw 11, and a synchronous rotation assembly driving the first rotating rod 14 and the second rotating rod 17 to rotate synchronously, wherein the first driving gear 15 is meshed with the first driven gear 16, and the second driving gear 18 is meshed with the second driven gear 19.

[0039] Reference Figure 3When the synchronous rotation assembly drives the first rotating rod 14 and the second rotating rod 17 to rotate synchronously, the first rotating rod 14 and the second rotating rod 17 rotate synchronously, and the first rotating rod 14 drives the first driving gear 15 to rotate while rotating, and the first driving gear 15 drives the first driven gear 16 to rotate while rotating, and the first driven gear 16 drives the first bidirectional lead screw 102 to rotate while rotating; the second rotating rod 17 drives the second driving gear 18 to rotate while rotating, and the second driving gear 18 drives the second driven gear 19 to rotate while rotating.

[0040] Reference Figure 3 A driving shell 20 is installed on the top of the supporting plate 1, and the first rotating rod 14 is passed through the side of the driving shell 20 away from the supporting plate 1. The synchronous rotation assembly includes a first hub 21 fixedly sleeved on the first rotating rod 14, a second hub 22 fixedly sleeved on the second rotating rod 17, and a transmission belt 23 wound around the first hub 21 and the second hub 22. When the first rotating rod 14 rotates, the first hub 21 rotates and drives the transmission belt 23 to transmit, the transmission belt 23 drives the second hub 22 to rotate, and the second hub 22 rotates and drives the second rotating rod 17 to rotate. In addition, a rotating handle 24 is installed at one end of the first rotating rod 14, and the smoothness of rotating the first rotating rod 14 is improved by rotating the handle 24. The size of the first hub 21 is consistent with the size of the second hub 22.

[0041] Reference Figure 4 The support plate 1 is provided with a rotation limiting assembly for limiting the rotation of the first rotation rod 14. Specifically, the rotation limiting assembly includes a locking ring block 25 installed on the top of the support plate 1, a plurality of locking holes 26 provided on the locking ring block 25, a through hole 27 provided on the rotation handle 24, and a locking rod 28 slidably penetrated through the through hole 27. The through hole 27 is provided on two opposite sides of the rotation handle 24. The locking rod 28 is plugged into and matched with the locking hole 26.

[0042] Reference Figure 4 By rotating the first rotating rod 14, the two first fixing blocks 91 are pressed against the inner walls of the corresponding fixing holes and the two second fixing blocks 101 are pressed against the inner walls of the corresponding fixing holes. At this time, the locking rod 28 slides through the through hole 27 and is plugged into the locking hole 26, thereby limiting the rotation of the rotating handle 24 and further limiting the rotation of the first rotating rod 14.

[0043] Reference Figure 2The side of the support plate 1 away from the foundation pit is rotatably mounted with an inclined support rod 29, and the end of the inclined support rod 29 away from the support plate 1 is mounted with a support block 30. The support block 30 is threadedly connected with an adjusting screw 31, and the end of the adjusting screw 31 away from the support block 30 is mounted with an adjusting block 32, and the adjusting screw 31 is rotatably mounted on one side of the adjusting block 32. The adjusting block 32 is provided with a plurality of adjusting slots 33, which penetrate two opposite sides of the adjusting block 32, and the adjusting slots 33 are slidably penetrated with expansion bolts 34.

[0044] Reference Figure 2 The support plate 1 is supported by the diagonal brace 29, and the height of the adjustment block 32 is adjusted by rotating the adjustment block 32 and cooperating with the threaded connection between the adjustment screw 31 and the support block 30. The expansion bolt 34 is slidably penetrated through the adjustment block 32 and then driven into the ground, thereby fixing the adjustment block 32 to the ground.

[0045] The implementation principle of the deep foundation pit excavation and support structure based on BIM technology in the embodiment of the present application is: the first fixed block 91 is plugged and matched with the corresponding fixed hole; the second fixed block 101 is plugged and matched with the corresponding fixed hole. The first bidirectional screw 102 and the second bidirectional screw 11 are driven to rotate synchronously by the synchronous rotation mechanism. While the first bidirectional screw 102 rotates, it cooperates with the two first fixed blocks 91 to slide with the support plate 1, so that the two first fixed blocks 91 are moved away from each other until the two first fixed blocks 91 are pressed against the inner wall of the corresponding fixed hole; while the second bidirectional screw 11 rotates, it cooperates with the two second fixed blocks 101 to slide with the support plate 1, so that the two second fixed blocks 101 are moved away from each other until the two second fixed blocks 101 are pressed against the inner wall of the corresponding fixed hole, so as to realize the fixed connection between the first fixed block 91 and the foundation pit and the second fixed block 101 and the foundation pit, and then realize the fixed connection between the support plate 1 and the foundation pit.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A deep foundation pit excavation and support structure based on BIM technology, comprising a plurality of support plates (1), characterized in that: The support plate (1) is provided with two sets of fixing devices for fixing the support plate to the foundation pit; The fixing device comprises a first fixing group (9) and a second fixing group (10) arranged on one side of the supporting plate (1), a first bidirectional lead screw (102) and a second bidirectional lead screw (11) rotatably arranged on one side of the supporting plate (1), and a synchronous rotation mechanism for driving the first bidirectional lead screw (102) and the second bidirectional lead screw (11) to rotate synchronously; The first fixing group (9) includes two first fixing blocks (91), and the second fixing group (10) includes two second fixing blocks (101). The two first fixing blocks (91) are respectively threadedly connected to the two ends of the first bidirectional lead screw (102), and the two second fixing blocks (101) are respectively threadedly connected to the two ends of the second bidirectional lead screw (11). The foundation pit is provided with fixing holes for the first fixing blocks (91) and the second fixing blocks (101) to be plugged in and matched.

2. The deep foundation pit excavation and support structure based on BIM technology according to claim 1 is characterized in that: Two adjacent support plates (1) are fixedly connected via a splicing assembly; The splicing assembly comprises a splicing block (2) arranged on one side of the supporting plate (1), a splicing groove (3) arranged on the supporting plate (1) away from the splicing block (2), a through hole (4) provided on the splicing block (2), a latch hole (5) provided on the supporting plate (1), and a fixed latch (6) slidably inserted into the latch hole (5); the splicing block (2) is plugged into the splicing groove (3), the splicing groove (3) is communicated with the latch hole (5), the fixed latch (6) is slidably inserted into the through hole (4) and the splicing groove (3), and when the splicing block (2) is plugged into the splicing groove (3), the through hole (4) and the latch hole (5) are opposite to each other.

3. The deep foundation pit excavation and support structure based on BIM technology according to claim 2 is characterized by: The synchronous rotation mechanism comprises a first rotating rod (14) and a second rotating rod (17) rotatably arranged on the supporting plate (1), a first driving gear (15) sleeved on the first rotating rod (14), a first driven gear (16) sleeved on the first bidirectional lead screw (102), a second driving gear (18) sleeved on the second rotating rod (17), a second driven gear (19) sleeved on the second bidirectional lead screw (11), and a synchronous rotation assembly for driving the first rotating rod (14) and the second rotating rod (17) to rotate synchronously, wherein the first driving gear (15) is meshed with the first driven gear (16), and the second driving gear (18) is meshed with the second driven gear (19).

4. The deep foundation pit excavation and support structure based on BIM technology according to claim 3 is characterized by: The synchronous rotation assembly comprises a first hub (21) sleeved on the first rotating rod (14), a second hub (22) sleeved on the second rotating rod (17), and a transmission belt (23) sleeved on the first hub (21) and the second hub (22).

5. The deep foundation pit excavation and support structure based on BIM technology according to claim 3 is characterized by: The support plate (1) is provided with a rotation limiting component for limiting the rotation of the first rotation rod (14).

6. The deep foundation pit excavation and support structure based on BIM technology according to claim 5 is characterized by: The rotation limiting assembly comprises a locking ring block (25) arranged on the supporting plate (1), a plurality of locking holes (26) provided on the locking ring block (25), a through hole (27) provided on the first rotating rod (14), and a locking rod (28) slidably penetrated through the through hole (27), wherein the locking rod (28) is plugged into and matched with the locking hole (26).

7. The deep foundation pit excavation and support structure based on BIM technology according to claim 1 is characterized in that: The support plate (1) is provided with a support component for supporting the support plate (1).

8. The deep foundation pit excavation and support structure based on BIM technology according to claim 7 is characterized in that: The support assembly comprises an oblique support rod (29) arranged on the support plate (1), an adjustment block (32) arranged at one end of the oblique support rod (29), an adjustment screw (31) threadedly connected to the adjustment block (32), an adjustment block (32) arranged at one end of the adjustment screw (31), a plurality of adjustment slots (33) provided on the adjustment block (32), and an expansion bolt (34) slidably inserted into the adjustment slot (33).

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