Support changing system of existing building structure outside foundation pit in foundation pit construction

Abstract

The utility model relates to a support changing system of an existing building structure outside a foundation pit in foundation pit construction, which belongs to the technical field of foundation pit support in building construction and comprises a foundation pit main body, a building floor and a floor slab are arranged on one side of the foundation pit main body, the building floor is horizontally arranged, the floor slab is vertically arranged, and upper support plates are arrayed at the bottom end of the building floor. The bottom ends of the upper supporting plates are fixedly connected with fixing columns. The fixing device has the advantages that the two ends of the iron fixing buckle are fixed through the connecting bolts, the iron fixing buckle can be installed on the basis that the fixing column is not damaged, damage to the middle section of the fixing column can be reduced, and the supporting force of the fixing column to the body is ensured; the connecting strength between the two fixing columns is further enhanced, the supporting strength of the building structure outside the foundation pit is enhanced, damage to the building structure in the construction process is avoided, and the connecting bolts are located on the outer side, so that the connecting bolts are more convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit support in building construction, in particular to a replacement support system of an existing building structure outside a foundation pit in foundation pit construction. Background Art

[0002] In foundation pit engineering, the foundation pit ensures its stability during construction by setting up a retaining system and a horizontal support system. The retaining system includes retaining piles set in the soil around the foundation pit and purlins set on the retaining piles, which play a role in reinforcing the soil and ensuring the stability of the foundation pit. The purlins are set on the inner side of the retaining piles on the side wall of the foundation pit and also on the top of the retaining piles. The horizontal support system is supported on the purlins and is laterally supported inside the foundation pit through the horizontal support system, playing a supporting role.

[0003] After searching, a Chinese patent discloses a support replacement system for an existing building structure outside a foundation pit during foundation pit construction (authorization announcement number CN208219668U), including a foundation pit and a building structure constructed outside the foundation pit, the building structure including a horizontal floor slab and a vertical floor slab, a protection mechanism is installed on the side wall of the foundation pit, the protection mechanism includes a first protection frame and a second protection frame installed on the side wall of the foundation pit, the first protection frame and the second protection frame are connected by a plurality of vertical first support rods, a third protection frame and a fourth protection frame corresponding to the positions of the first protection frame and the second protection frame are installed on the side wall of the foundation pit close to the floor slab, and the third protection frame and the fourth protection frame are connected by a plurality of vertical second support rods, and fastening bolts are connected between the first protection frame and the third protection frame. Although this patented technology can strengthen the supporting strength of the building structure outside the foundation pit, avoid damage to the building structure during construction, and protect the foundation pit.

[0004] However, the above device still has some shortcomings in actual use. The most obvious one is that in the above foundation pit construction, the overall strength of the support mechanism is enhanced in the support replacement system of the existing building structure outside the foundation pit by using a connecting frame, a first bolt, a fixing block and a second bolt, while the support replacement mechanism needs to chisel an installation groove on the support column, causing more or less damage to the support column, making its supporting force in the middle section during the supporting process relatively fragile, and the space between the support columns is relatively narrow, and it is even more difficult to install the first bolt and the second bolt in the installation groove on the support column. Utility Model Content

[0005] In view of the existing technology, the following problems exist: in the support replacement system of the existing building structure outside the foundation pit during the above-mentioned foundation pit construction, the overall strength of the support mechanism is enhanced by the connecting frame, the first bolt, the fixing block and the second bolt, and the support replacement mechanism needs to chisel an installation groove on the support column, causing more or less damage to the support column, making its middle supporting force during the supporting process relatively fragile, and the space between the support columns is relatively narrow, and it is even more difficult to install the first bolt and the second bolt in the installation groove on the support column. The main purpose of the utility model is to provide a support replacement system for the existing building structure outside the foundation pit during the foundation pit construction.

[0006] The technical solution of the utility model is as follows: a support replacement system for an existing building structure outside a foundation pit during foundation pit construction comprises a foundation pit main body, a floor plate and a floor slab are arranged on one side of the foundation pit main body, the floor plate is placed horizontally, the floor slab is placed vertically, an upper support plate is arrayed at the bottom end of the floor plate, the bottom ends of the upper support plates are fixedly connected with fixed columns, two iron fixing buckles are arranged on the outer sides of the fixed columns, connecting rods are rotatably connected between the two crossed iron fixing buckles, connecting bolts are arranged on the outer sides of the iron fixing buckles, the two ends of the iron fixing buckles are connected by connecting bolts, and a protective mechanism is arranged on the outer side of the foundation pit main body.

[0007] By adopting the above technical scheme, the two ends of the iron fixing buckle are fixed by connecting bolts, so that the iron fixing buckle can be installed without damaging the fixing column, thereby reducing the damage to the middle section of the fixing column, ensuring the supporting force of the fixing column on the main body, and further strengthening the connection strength between the two fixing columns through the setting of the connecting rod, and strengthening the supporting strength of the building structure outside the foundation pit, avoiding damage to the building structure during construction, and the direction of the connecting bolt is on the outside, making the installation of the connecting bolt more convenient.

[0008] As a preferred embodiment, the protection mechanism includes a first protection frame arranged on the inner wall of the foundation pit body, a second protection frame is arranged on the side of the foundation pit body close to the floor, a first installation groove is opened inside the first protection frame, a second installation groove is opened inside the second protection frame, and a fixing frame is arranged at the top of the foundation pit body, and both ends of the fixing frame are clamped with the inner walls of the first installation groove and the second installation groove.

[0009] By adopting the above technical solution and setting a fixed frame, the connection strength between the first protective frame, the second protective frame and the foundation pit body can be enhanced.

[0010] As a preferred embodiment, an iron protrusion is fixedly connected to the inner wall of one of the connecting rods, and a slot is provided on the inner wall of the other connecting rod, and a magnetic sheet is fixedly connected to the inner wall of the slot.

[0011] By adopting the above technical solution, the stability of the iron fixing buckle is further enhanced through the coordinated use of the iron protrusion and the magnetic sheet, so that the connection relationship between the two fixing columns is better.

[0012] As a preferred embodiment, the sides of the fixing columns away from the upper supporting plates are fixedly connected to the lower supporting plates, and connecting pieces are fixedly connected between the two upper supporting plates and the two lower supporting plates.

[0013] By adopting the above technical solution and setting the connecting piece, the connection strength between the two upper support plates or the two lower support plates can be improved.

[0014] As a preferred implementation, long bolts are equidistantly arranged inside the fixing frame, and the first protection frame, the foundation pit body and the second protection frame are connected by the long bolts.

[0015] By adopting the above technical solution and using long bolts, the connection strength between the first protective frame, the second protective frame and the foundation pit body can be further enhanced, thereby improving the protective effect on the foundation pit body.

[0016] As a preferred embodiment, an anti-skid layer is fixedly connected to the inner wall of the iron fixing buckle, and the anti-skid layer is made of silicone.

[0017] By adopting the above technical solution and setting the silicone material, the friction coefficient between the iron fixing buckle and the fixing column can be increased.

[0018] Compared with the prior art, the advantages and positive effects of the utility model are:

[0019] 1. In the utility model, when it is necessary to replace the support operation of the fixed column, it is necessary to put the iron fixing buckle on the corresponding fixing column, and fix the two ends of the iron fixing buckle by connecting bolts, so that the installation of the iron fixing buckle can be achieved without damaging the fixing column, thereby reducing the damage to the middle section of the fixing column, ensuring the supporting force of the fixing column on the main body, and further strengthening the connection strength between the two fixing columns through the setting of the connecting rod, and strengthening the supporting strength of the building structure outside the foundation pit, avoiding damage to the building structure during construction, and the direction of the connecting bolt is on the outside, making the installation of the connecting bolt more convenient.

[0020] 2. In the utility model, by setting up a fixed frame, the connection strength between the first protective frame, the second protective frame and the foundation pit main body can be enhanced, and by the coordinated use of the first protective frame and the second protective frame, the stabilizing effect on the displacement of the foundation pit can be further improved, and by the use of long bolts, the connection strength between the first protective frame, the second protective frame and the foundation pit main body can be further enhanced, thereby improving the protective effect on the foundation pit main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall three-dimensional diagram of the utility model;

[0022] Figure 2 It is an exploded view of the utility model;

[0023] Figure 3 For the utility model Figure 2 The enlarged view of point A in the middle;

[0024] Figure 4 For the utility model Figure 2 Enlarged view of point B in the middle.

[0025] Legend: 1. Foundation pit body; 2. Floor; 3. Floor; 4. Fixed frame; 5. First protective frame; 6. Second protective frame; 7. Long bolts; 8. First mounting slot; 9. Second mounting slot; 10. Upper support plate; 11. Connecting piece; 12. Lower support plate; 13. Iron fixing buckle; 14. Connecting bolt; 15. Connecting rod; 16. Iron bump; 17. Slot; 18. Fixed column. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0027] Reference Figure 1-4 During the foundation pit construction, a replacement support system of an existing building structure outside the foundation pit is provided, including a foundation pit main body 1, a floor 2 and a floor 3 are arranged on one side of the foundation pit main body 1, the floor 2 is placed horizontally, and the floor 3 is placed vertically, and an upper support plate 10 is arranged at the bottom end of the floor 2, and a fixing column 18 is fixedly connected to the bottom end of the upper support plate 10, and two iron fixing buckles 13 are arranged on the outer side of the fixing column 18, and a connecting rod 15 is rotatably connected between the two crossed iron fixing buckles 13, and connecting bolts 14 are arranged on the outer side of the iron fixing buckles 13, and the two ends of the iron fixing buckles 13 are connected by the connecting bolts 14, and a protective mechanism is arranged on the outer side of the foundation pit main body 1.

[0028] When it is necessary to replace the support of the fixing column 18, it is necessary to put the iron fixing buckle 13 on the corresponding fixing column 18, and fix the two ends of the iron fixing buckle 13 by connecting bolts 14, so that the installation of the iron fixing buckle 13 can be achieved without damaging the fixing column 18, thereby reducing the damage to the middle section of the fixing column 18, ensuring the supporting force of the fixing column 18 on the main body, and further strengthening the connection strength between the two fixing columns 18 through the setting of the connecting rod 15, and strengthening the supporting strength of the building structure outside the foundation pit, avoiding damage to the building structure during construction, and the direction of the connecting bolt 14 is on the outside, making the installation of the connecting bolt 14 more convenient.

[0029] Reference Figure 4 The protection mechanism includes a first protection frame 5 arranged on the inner wall of the foundation pit body 1, a second protection frame 6 is arranged on the side of the foundation pit body 1 close to the floor 3, a first installation groove 8 is opened inside the first protection frame 5, and a second installation groove 9 is opened inside the second protection frame 6. A fixing frame 4 is arranged on the top of the foundation pit body 1, and both ends of the fixing frame 4 are clamped with the inner walls of the first installation groove 8 and the second installation groove 9.

[0030] When in use, the setting of the fixed frame 4 can enhance the connection strength between the first protective frame 5, the second protective frame 6 and the foundation pit main body 1, and the coordinated use of the first protective frame 5 and the second protective frame 6 can further improve the stabilizing effect on the displacement of the foundation pit.

[0031] Reference Figure 3 An iron protrusion 16 is fixedly connected to the inner wall of one connecting rod 15 , and a slot 17 is provided on the inner wall of the other connecting rod 15 , and a magnetic sheet is fixedly connected to the inner wall of the slot 17 .

[0032] By using the iron protrusion 16 in conjunction with the magnetic sheet, the stability of the iron fixing buckle 13 is further enhanced, so that the connection relationship between the two fixing columns 18 is better.

[0033] Reference Figure 3 The side of the fixing column 18 away from the upper support plate 10 is fixedly connected to the lower support plate 12, and the two upper support plates 10 and the two lower support plates 12 are fixedly connected with connecting members 11. Through the setting of the connecting members 11, the connection strength between the two upper support plates 10 or the two lower support plates 12 can be improved.

[0034] Reference Figure 1 Long bolts 7 are equidistantly arranged inside the fixed frame 4, and the first protective frame 5, the foundation pit main body 1 and the second protective frame 6 are connected by the long bolts 7. By using the long bolts 7, the connection strength between the first protective frame 5, the second protective frame 6 and the foundation pit main body 1 can be further enhanced, thereby improving the protection effect on the foundation pit main body 1.

[0035] Reference Figure 3 The inner wall of the iron fixing buckle 13 is fixedly connected with an anti-skid layer, and the anti-skid layer is made of silicone material. Through the setting of the silicone material, the friction coefficient between the iron fixing buckle 13 and the fixing column 18 can be increased, making the iron fixing buckle 13 more stable during installation.

[0036] Working principle: When it is necessary to replace the support of the fixed column 18, it is necessary to put the iron fixing buckle 13 on the corresponding fixed column 18, and fix the two ends of the iron fixing buckle 13 by the connecting bolt 14, so that the installation of the iron fixing buckle 13 can be achieved without damaging the fixed column 18, thereby reducing the damage to the middle section of the fixed column 18, ensuring the supporting force of the fixed column 18 on the main body, and through the setting of the connecting rod 15, the connection strength between the two fixed columns 18 is further strengthened, and the supporting strength of the building structure outside the foundation pit is strengthened to avoid damage to the building structure during construction. The direction of the connecting bolt 14 is on the outside, making it more convenient to install the connecting bolt 14, and through the setting of the fixing frame 4, the connection strength between the first protective frame 5, the second protective frame 6 and the foundation pit main body 1 can be enhanced, and through the coordinated use of the first protective frame 5 and the second protective frame 6, the stabilizing effect of the displacement of the foundation pit is further improved, and through the use of the long bolt 7, the connection strength between the first protective frame 5, the second protective frame 6 and the foundation pit main body 1 can be further enhanced to improve the protective effect of the foundation pit main body 1.

[0037] The above are only preferred embodiments of the present application and are not intended to limit the present application. Although the present application 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 make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A support replacement system for an existing building structure outside a foundation pit during foundation pit construction, comprising a foundation pit main body (1), characterized in that: A floor plate (2) and a floor slab (3) are arranged on one side of the foundation pit body (1), the floor plate (2) is placed horizontally, the floor slab (3) is placed vertically, an upper support plate (10) is arranged at the bottom end of the floor plate (2), the bottom ends of the upper support plates (10) are fixedly connected to fixing columns (18), two iron fixing buckles (13) are arranged on the outside of the fixing columns (18), a connecting rod (15) is rotatably connected between the two intersecting iron fixing buckles (13), connecting bolts (14) are arranged on the outside of the iron fixing buckles (13), and the two ends of the iron fixing buckles (13) are connected by the connecting bolts (14), and a protective mechanism is arranged on the outside of the foundation pit body (1).

2. The support replacement system for existing building structures outside the foundation pit during foundation pit construction according to claim 1, characterized in that: The protection mechanism comprises a first protection frame (5) arranged on the inner wall of a foundation pit body (1); a second protection frame (6) is arranged on a side of the foundation pit body (1) close to the floor slab (3); a first mounting groove (8) is provided inside the first protection frame (5); a second mounting groove (9) is provided inside the second protection frame (6); a fixing frame (4) is arranged at the top of the foundation pit body (1); both ends of the fixing frame (4) are clamped with the inner walls of the first mounting groove (8) and the second mounting groove (9).

3. The support replacement system for existing building structures outside the foundation pit during foundation pit construction according to claim 1, characterized in that: An iron protrusion (16) is fixedly connected to the inner wall of one of the connecting rods (15), and a clamping groove (17) is provided on the inner wall of the other connecting rod (15), and a magnetic sheet is fixedly connected to the inner wall of the clamping groove (17).

4. The support replacement system for existing building structures outside the foundation pit during foundation pit construction according to claim 1, characterized in that: The sides of the fixing columns (18) away from the upper supporting plates (10) are fixedly connected to the lower supporting plates (12), and connecting pieces (11) are fixedly connected between the two upper supporting plates (10) and the two lower supporting plates (12).

5. The support replacement system for existing building structures outside the foundation pit during foundation pit construction according to claim 2, characterized in that: Long bolts (7) are arranged at equal intervals inside the fixing frame (4), and the first protection frame (5), the foundation pit body (1) and the second protection frame (6) are connected via the long bolts (7).

6. The support replacement system for existing building structures outside the foundation pit during foundation pit construction according to claim 1, characterized in that: The inner wall of the iron fixing buckle (13) is fixedly connected with an anti-slip layer, and the anti-slip layer is made of silicone material.

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