Foundation pit supporting device for subway section underground structure construction

Abstract

The utility model provides a foundation pit supporting device for metro section underground structure construction, which belongs to the field of foundation pit supporting and comprises two supporting plates, supporting top plates are arranged at the tops of the two supporting plates, a plurality of through holes are formed in the surfaces of the two supporting top plates, and the through holes are communicated with the supporting top plates. Longitudinal adjusting assemblies are arranged on the inner walls of the through holes. A plurality of supporting rods are inserted into a plurality of through holes and inserting holes, the supporting rods, two supporting top plates and two sets of strip-shaped blocks are installed, top blocks on the surfaces of the supporting rods are moved to the bottoms of the supporting top plates, and two connecting pins are inserted into two connecting holes and second hole grooves; the supporting rods and the supporting top plate are fixed through cooperation with locking nuts at the top ends of the supporting rods, the strip-shaped blocks are matched with the cleaning rings to move on the surfaces of the supporting rods, a plurality of mounting pins are inserted into a plurality of mounting holes and first hole grooves, the two strip-shaped blocks and the surfaces of the two supporting plates are limited and fixed, and the supporting heights of the two supporting plates are adjusted.

Description

Technical Field

[0001] The utility model relates to the field of foundation pit support, in particular to a foundation pit support device for underground structure construction in a subway section. Background Art

[0002] When excavating tunnels on the ground, in order to ensure the safety of underground structure construction and the safety of the surrounding environment of the foundation pit, support, reinforcement and protection measures are adopted for the side walls of the foundation pit or the surrounding environment. The foundation pit enclosure for subway construction generally uses support frames for slope support. However, for underground foundation pits of different widths and heights, it is difficult to use standard support rods and guard plates to support the support surfaces on both sides. The foundation pit support device for the construction of the basement of the subway protection zone disclosed in the application number CN202222320699.2 is recorded to include a main horizontal plate for abutting the support surface; a plurality of main vertical plates, which are arranged on the main horizontal plate and used to fix the main horizontal plate; a main support rod, which is arranged on the main vertical plate; a foundation pit for the construction of the basement of the subway protection zone The support device also includes: auxiliary vertical plates, auxiliary support rods, and auxiliary cross plates; the auxiliary vertical plates are arranged on both ends of the main vertical plates; the auxiliary support rods are fixed on the auxiliary vertical plates; the auxiliary cross plates are fixed on the auxiliary vertical plates. By adjusting the height and width of the foundation pit support device, it can adapt to foundation pits of different heights and widths, so that the supporting force provided by the foundation pit support device is more uniform. The foundation pit support device for the construction of basements of buildings in subway protection zones, but the above description still has the following defects in actual use: the foundation pit support device is not convenient for structural adjustment during use, and at the same time, the underground construction process of the subway section will continuously increase the depth of the foundation pit, so it is necessary to change the position of the cross bars connecting the surfaces of the guard plates on both sides, so it is necessary to design a foundation pit support device with strong practicality for the construction of underground structures in subway sections. Utility Model Content

[0003] The purpose of the utility model is to provide a foundation pit support device for underground structure construction in a subway section, so as to solve the problems raised by the above-mentioned background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a foundation pit support device for underground structure construction in a subway section, comprising two support plates, each of the two support plates being provided with a support top plate on its top, each of the two support top plates being provided with a plurality of through holes on its surface, and each of the inner walls of the plurality of through holes being provided with a longitudinal adjustment assembly;

[0005] A longitudinal adjustment assembly, wherein the longitudinal adjustment assembly includes a plurality of support rods installed on the inner walls of the plurality of through holes, the surfaces of the top ends of the plurality of support rods are provided with locking nuts, the surfaces of the plurality of support rods are slidably connected with two groups of bar blocks, mounting blocks are provided on both sides of the top and bottom of the two groups of bar blocks, mounting holes are opened on the surfaces of the mounting blocks, the inner walls of the mounting holes are engaged with a plurality of first hole grooves opened on the surfaces of the two support plates through mounting pins, the opposite sides of the two groups of bar blocks are provided with moving grooves, and the inner walls of the two groups of moving grooves are provided with lateral adjustment assemblies;

[0006] A lateral adjustment component, which includes several moving blocks installed on the inner walls of two groups of moving grooves, several of the moving blocks have through holes on their tops, and the inner walls of several of the through holes are respectively connected to the inner walls of the moving grooves through limiting screws, and several limiting holes and positioning holes are respectively opened on both sides of the inner walls of the moving grooves. The opposite side of the two moving blocks is connected to one end of the two adjusting rods, and the surface of the other end of the two adjusting rods is threadedly connected to the two ends of the cross bar.

[0007] As a preferred solution of the present invention: the surfaces of several support rods are provided with top blocks, both sides of the bottoms of several top blocks are provided with connecting holes, and the inner walls of several groups of the connecting holes are threadedly connected to several groups of second hole grooves provided on the bottoms of the two support top plates through connecting pins.

[0008] As a preferred solution of the present invention: a plurality of insertion holes are provided on one side of the top of the two strip-shaped blocks, and the inner walls of the plurality of insertion holes are interlaced and connected with the surfaces of the plurality of support rods.

[0009] As a preferred solution of the present invention: both ends of the two adjusting rods are provided with cross clamping blocks, and the surfaces of the two cross clamping blocks are engaged with the cross clamping grooves provided on the opposite sides of the two moving blocks.

[0010] As a preferred solution of the present invention: cleaning rings are provided on the edges of the bottoms of the inner walls of several of the jacks, and the inner walls of several of the cleaning rings are interlaced and connected with the surfaces of several support rods.

[0011] As a preferred solution of the present invention: a plurality of snap-in holes are provided on the tops of the two support plates, and the inner walls of the plurality of snap-in holes are snap-connected with the snap-in joints provided on one side of the bottoms of the two support top plates.

[0012] As a preferred solution of the present invention: a plurality of clamping grooves are provided on opposite sides of the two support top plates, and the inner walls of the plurality of clamping grooves are clamped and connected with a plurality of clamping blocks provided at both ends of the support frame.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] (1) by inserting a plurality of support rods into a plurality of through holes and jacks, the plurality of support rods and the two support top plates and the two groups of strip blocks are installed, the top block on the surface of the support rod is moved to the bottom of the support top plate, and the two connecting pins are inserted into the two connecting holes and the second hole groove, and the support rod and the support top plate are fixed in position with the locking nut at the top of the support rod, the two groups of strip blocks are moved on the surface of the plurality of support rods in conjunction with the plurality of cleaning rings, and are moved to the appropriate position to insert the plurality of mounting pins into the plurality of mounting holes and the first hole groove, thereby fixing the two groups of strip blocks to the surface of the two support plates, thereby realizing the adjustment of the support height of the two support plates;

[0015] (2) By moving a plurality of moving blocks in the moving grooves on the two groups of bar blocks until they are in the appropriate position, a plurality of limiting screws are inserted into the corresponding plurality of limiting holes, through holes and positioning holes, thereby limiting and fixing the plurality of moving blocks and the two groups of bar blocks, and rotating the adjustment rods at both ends of the cross bar so that the two cross blocks at both ends of the two adjustment rods are engaged with the cross grooves on the surfaces of the two moving blocks, thereby facilitating the lateral support of the two bar blocks and the support plate, and facilitating the installation and disassembly of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 It is a partial structural diagram of the utility model;

[0018] Figure 3 This is one of the partial structural diagrams of the utility model;

[0019] Figure 4 This is a schematic diagram of the longitudinal adjustment component structure of the present utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the lateral adjustment component of the present utility model.

[0021] In the figure: 1. Support plate; 11. Support top plate; 12. Through hole; 13. First hole slot; 14. Second hole slot; 15. Snap-in hole; 16. Snap joint; 17. Snap-in slot; 18. Support frame; 19. Snap-in block; 2. Longitudinal adjustment assembly; 21. Support rod; 22. Locking nut; 23. Bar block; 24. Mounting block; 25. Mounting hole; 26. Mounting pin; 27. Moving slot; 28. Limiting hole; 29. ​​Positioning hole; 210. Top block; 211. Connecting hole; 212. Connecting pin; 213. Socket; 214. Cleaning ring; 3. Horizontal adjustment assembly; 31. Moving block; 32. Through hole; 33. Limiting screw; 34. Adjusting rod; 35. Cross bar; 36. Cross clamping block; 37. Cross clamping slot. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 5 A foundation pit support device for underground structure construction in a subway section includes two support plates 1. The tops of the two support plates 1 are each provided with a support top plate 11. The surfaces of the two support top plates 11 are each provided with a plurality of through holes 12. The inner walls of the plurality of through holes 12 are each provided with a longitudinal adjustment component 2.

[0024] See also Figure 4 , longitudinal adjustment component 2, the longitudinal adjustment component 2 includes several support rods 21 installed on the inner walls of several through holes 12, the surfaces of the top ends of several support rods 21 are provided with locking nuts 22, and the surfaces of several support rods 21 are slidably connected with two groups of bar blocks 23, and mounting blocks 24 are provided on both sides of the top and bottom of the two groups of bar blocks 23. The surface of the mounting block 24 is provided with a mounting hole 25, and the inner wall of the mounting hole 25 is connected with several first hole grooves 13 on the surface of the two support plates 1 through a mounting pin 26. A moving groove 27 is provided on the opposite side of the two groups of bar blocks 23, and the inner wall of the two groups of moving grooves 27 is provided with a lateral adjustment component 3.

[0025] During specific use: insert several support rods 21 into several through holes 12 and insertion holes 213, thereby installing several support rods 21 and two support top plates 11 and two groups of strip blocks 23, move the top block 210 on the surface of the support rod 21 to the bottom of the support top plate 11, and insert the two connecting pins 212 into the two connecting holes 211 and the second hole groove 14, cooperate with the locking nut 22 at the top of the support rod 21 to limit and fix the support rod 21 and the support top plate 11, and the two groups of strip blocks 23 cooperate with several cleaning rings 214 to move on the surface of several support rods 21, move to the appropriate position and insert several mounting pins 26 into several mounting holes 25 and the first hole groove 13, thereby limiting and fixing the two groups of strip blocks 23 to the surface of the two support plates 1, thereby realizing the adjustment of the support height of the two support plates 1.

[0026] See also Figure 5, the lateral adjustment component 3, the lateral adjustment component 3 includes several moving blocks 31 installed on the inner walls of the two groups of moving grooves 27, the tops of the several moving blocks 31 are provided with through holes 32, the inner walls of the several through holes 32 are respectively connected with several limiting holes 28 and positioning holes 29 on both sides of the inner wall of the moving groove 27 through limiting screws 33, the opposite side of the two moving blocks 31 is connected with one end of the two adjusting rods 34, and the surface of the other end of the two adjusting rods 34 is threadedly connected with the two ends of the cross bar 35.

[0027] During specific use: move several moving blocks 31 in the moving grooves 27 on the two groups of bar blocks 23, and insert several limiting screws 33 into the corresponding limiting holes 28, through holes 32 and positioning holes 29 until they are in the appropriate position, so as to limit and fix the several moving blocks 31 and the two groups of bar blocks 23, and rotate the adjusting rods 34 at both ends of the cross bar 35 so that the two cross blocks 36 at both ends of the two adjusting rods 34 are engaged with the cross grooves 37 on the surfaces of the two moving blocks 31, thereby facilitating the horizontal support of the two bar blocks 23 and the support plate 1, and facilitating the installation and disassembly of its structure.

[0028] See also Figure 2 、 Figure 3 The surfaces of several support rods 21 are provided with top blocks 210, and connecting holes 211 are opened on both sides of the bottom of several top blocks 210. The inner walls of several groups of connecting holes 211 are threadedly connected with several groups of second hole grooves 14 opened at the bottom of the two support top plates 11 through connecting pins 212.

[0029] During specific use: insert several support rods 21 into several through holes 12 and insertion holes 213, thereby installing several support rods 21 and two support top plates 11 and two groups of strip blocks 23, move the top block 210 on the surface of the support rod 21 to the bottom of the support top plate 11, and insert the two connecting pins 212 into the two connecting holes 211 and the second hole groove 14, and cooperate with the locking nut 22 at the top of the support rod 21 to limit and fix the support rod 21 and the support top plate 11.

[0030] See also Figure 4 A plurality of insertion holes 213 are provided on one side of the top of the two bar blocks 23 , and the inner walls of the plurality of insertion holes 213 are interlaced and connected with the surfaces of the plurality of support rods 21 .

[0031] During specific use, the surfaces of the plurality of support rods 21 are connected through the inner walls of the plurality of insertion holes 213 , thereby facilitating the two groups of bar blocks 23 to move on the surfaces of the plurality of support rods 21 .

[0032] See also Figure 5Both ends of the two adjusting rods 34 are provided with a cross block 36 , and the surfaces of the two cross blocks 36 are engaged with the cross slots 37 provided on the opposite side of the two moving blocks 31 .

[0033] During specific use: rotate the adjusting rods 34 at both ends of the cross rod 35 so that the two cross blocks 36 at both ends of the two adjusting rods 34 are engaged with the cross slots 37 on the surfaces of the two moving blocks 31, thereby facilitating the horizontal support of the two strip blocks 23 and the support plate 1, and facilitating the installation and disassembly of the structure.

[0034] See also Figure 4 The edges of the bottom inner walls of the plurality of jacks 213 are provided with cleaning rings 214 , and the inner walls of the plurality of cleaning rings 214 are interlaced and connected with the surfaces of the plurality of support rods 21 .

[0035] During specific use, the two groups of bar blocks 23 cooperate with a plurality of cleaning rings 214 to move on the surfaces of the plurality of support rods 21 to clean impurities on the surfaces of the support rods 21 to avoid affecting the height adjustment thereof.

[0036] See also Figure 2 、 Figure 3 The tops of the two supporting plates 1 are each provided with a plurality of snap-in holes 15 , and the inner walls of the plurality of snap-in holes 15 are snap-connected with the snap-in joints 16 provided on one side of the bottom of the two supporting top plates 11 .

[0037] During specific use: the multiple clamping joints 16 at the bottom of the two supporting top plates 11 are engaged with the inner walls of the multiple clamping holes 15, so that the two supporting top plates 11 are clamped and fixed with the two supporting plates 1, so as to provide auxiliary support for the top of the foundation pit.

[0038] See also Figure 2 A plurality of snap-in grooves 17 are provided on opposite sides of the two support top plates 11 , and the inner walls of the plurality of snap-in grooves 17 are snap-connected with a plurality of snap-in blocks 19 provided at both ends of the support frame 18 .

[0039] During specific use: the several clamping blocks 19 at both ends of the support frame 18 are engaged with the several clamping grooves 17 on the two support top plates 11, so as to install and fix the support frame 18 and the two support top plates 11, so as to provide auxiliary support for the two support plates 1.

[0040] When in use, insert several support rods 21 into several through holes 12 and insertion holes 213, install several support rods 21 and two support top plates 11 and two groups of strip blocks 23, move the top block 210 on the surface of the support rod 21 to the bottom of the support top plate 11, and insert the two connecting pins 212 into the two connecting holes 211 and the second hole groove 14, cooperate with the locking nut 22 at the top of the support rod 21 to limit and fix the support rod 21 and the support top plate 11, the two groups of strip blocks 23 cooperate with several cleaning rings 214 to move on the surface of several support rods 21, move to the appropriate position, insert several mounting pins 26 into several mounting holes 25 and the first hole groove 13, and install the two groups of strip blocks 23. The plurality of movable blocks 31 are fixed to the surfaces of the two support plates 1 in a limited manner to achieve adjustment of the support height of the two support plates 1; the plurality of movable blocks 31 are moved in the movable grooves 27 on the two groups of bar blocks 23 until they are in the appropriate position, and the plurality of limiting screws 33 are inserted into the corresponding plurality of limiting holes 28, through holes 32 and positioning holes 29, thereby limiting and fixing the plurality of movable blocks 31 to the two groups of bar blocks 23; the adjusting rods 34 at both ends of the cross bar 35 are rotated so that the two cross blocks 36 at both ends of the two adjusting rods 34 are engaged with the cross grooves 37 on the surfaces of the two movable blocks 31, which is convenient for horizontal support of the two bar blocks 23 and the support plate 1, and at the same time convenient for installation and disassembly of the structure.

[0041] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A foundation pit support device for underground structure construction in a subway section, characterized in that: It comprises two supporting plates (1), the tops of the two supporting plates (1) are each provided with a supporting top plate (11), the surfaces of the two supporting top plates (11) are each provided with a plurality of through holes (12), and the inner walls of the plurality of through holes (12) are each provided with a longitudinal adjustment component (2); A longitudinal adjustment component (2), the longitudinal adjustment component (2) comprising a plurality of support rods (21) mounted on the inner walls of the plurality of through holes (12), the surfaces of the top ends of the plurality of support rods (21) being provided with locking nuts (22), the surfaces of the plurality of support rods (21) being slidably connected with two groups of bar blocks (23), the top and bottom sides of the two groups of bar blocks (23) being provided with mounting blocks (24), the surfaces of the mounting blocks (24) being provided with mounting holes (25), the inner walls of the mounting holes (25) being engaged with the surfaces of the two support plates (1) being provided with a plurality of first hole grooves (13) through mounting pins (26), the opposite sides of the two groups of bar blocks (23) being provided with moving grooves (27), the inner walls of the two groups of moving grooves (27) being provided with transverse adjustment components (3); A transverse adjustment component (3), the transverse adjustment component (3) includes a plurality of moving blocks (31) installed on the inner walls of two groups of moving grooves (27), the tops of the plurality of moving blocks (31) are provided with through holes (32), the inner walls of the plurality of through holes (32) are respectively connected to the inner walls of the moving grooves (27) by means of limiting screws (33), the opposite sides of the two moving blocks (31) are connected to one end of the two adjusting rods (34), and the surfaces of the other ends of the two adjusting rods (34) are threadedly connected to the two ends of the cross bar (35).

2. The foundation pit support device for underground structure construction in a subway section according to claim 1, characterized in that: The surfaces of the plurality of support rods (21) are provided with top blocks (210), both sides of the bottoms of the plurality of top blocks (210) are provided with connection holes (211), and the inner walls of the plurality of groups of connection holes (211) are threadedly connected to the plurality of groups of second hole grooves (14) provided at the bottoms of the two support top plates (11) through connection pins (212).

3. The foundation pit support device for underground structure construction in a subway section according to claim 1, characterized in that: A plurality of insertion holes (213) are provided on one side of the top of the two strip-shaped blocks (23), and the inner walls of the plurality of insertion holes (213) are connected to the surfaces of the plurality of support rods (21) through insertion.

4. The foundation pit support device for underground structure construction in a subway section according to claim 1, characterized in that: Both ends of the two adjusting rods (34) are provided with cross clamping blocks (36), and the surfaces of the two cross clamping blocks (36) are engaged with cross clamping grooves (37) provided on opposite sides of the two moving blocks (31).

5. The foundation pit support device for underground structure construction in a subway section according to claim 3, characterized in that: The edges of the bottoms of the inner walls of the plurality of the insertion holes (213) are each provided with a cleaning ring (214), and the inner walls of the plurality of the cleaning rings (214) are interlaced and connected with the surfaces of the plurality of support rods (21).

6. The foundation pit support device for underground structure construction in a subway section according to claim 1, characterized in that: The tops of the two support plates (1) are each provided with a plurality of snap-fit ​​holes (15), and the inner walls of the plurality of snap-fit ​​holes (15) are snap-connected with snap-fit ​​joints (16) provided on one side of the bottom of the two support top plates (11).

7. The foundation pit support device for underground structure construction in a subway section according to claim 1, characterized in that: A plurality of clamping grooves (17) are provided on opposite sides of the two support top plates (11), and the inner walls of the plurality of clamping grooves (17) are clamped and connected with a plurality of clamping blocks (19) provided at both ends of the support guard frame (18).

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