A concrete structure for deep foundation pit support

Abstract

The application discloses a concrete structure for deep foundation pit support, which comprises a support body and coating plates arranged on both outer side walls of the support body respectively and clamping and fixing the support body at the side wall of the deep foundation pit, and the coating plate close to one side of the side wall of the deep foundation pit abuts against the side wall of the deep foundation pit; the support body comprises a first vertical column, a second vertical column and a third vertical column placed vertically on the bottom of the deep foundation pit in sequence and located on the same vertical plane, a first horizontal rod connecting the first vertical column and the second vertical column and a second horizontal rod connecting the second vertical column and the third vertical column, and the first horizontal rod and the second horizontal rod are located on the same horizontal plane. The support body is clamped and fixed at the side wall of the deep foundation pit through the coating plates, the arrangement of the coating plates not only enhances the supporting effect of the support body on the deep foundation pit, but also improves the protection performance of the support body, and in addition, the protection of the support body by the coating plates makes the support body reusable for many times, thereby increasing the environmental protection performance of the device.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of deep foundation pit support, and particularly relates to a concrete structure for deep foundation pit support. BACKGROUND

[0002] Deep foundation pit support refers to the measures of supporting, reinforcing and protecting the side wall of a deep foundation pit and the surrounding environment to ensure the safety of underground structure construction and the surrounding environment. In deep foundation pit engineering, in order to reduce the cost of supporting structure, shorten the construction period of foundation pit engineering, improve the quality of engineering structure and control the deformation of supporting retaining wall, a support system needs to be arranged on the inner side of the supporting retaining wall. At present, with the development and utilization of underground space, the excavation depth of underground engineering can reach more than 10m. The deep foundation pit support structure generally adopts concrete bored piles, and multiple cable-stayed anchor piles or multiple concrete structure inner supports are added to support the triaxial mixing cement soil water stop curtain, prevent the slope instability of the pit top, and prevent the damage of surrounding buildings, pipelines or roads.

[0003] The existing deep foundation pit supporting retaining wall inner support system mostly adopts a reinforced concrete support system or a profile steel support system. Although the reinforced concrete support system has large rigidity, it has the disadvantages of poor time effect, long construction period and waste caused by non-reusable, and the existing concrete structure is inconvenient to operate in construction, which prolongs the construction period of the building and makes the construction quality of the building be damaged due to the instability of the existing concrete structure in use. SUMMARY

[0004] In order to solve the problems of non-reusable, inconvenient construction operation and instability in use of the deep foundation pit support system in the background art, the present application provides a concrete structure for deep foundation pit support.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] A concrete structure for deep foundation pit support structure, comprising a support body and a coating plate arranged on both outer side walls of the support body and clamping and fixing the support body at the side wall of the deep foundation pit, the coating plate on the side close to the side wall of the deep foundation pit abuts against the side wall of the deep foundation pit;The support body comprises a first vertical column, a second vertical column and a third vertical column which are vertically placed in the deep foundation pit in sequence and located on the same vertical plane, a first horizontal bar connecting the first vertical column and the second vertical column, and a second horizontal bar connecting the second vertical column and the third vertical column, the first horizontal bar and the second horizontal bar being located on the same horizontal plane;A first V-shaped support frame and a second V-shaped support frame are arranged on the upper and lower sides of the first horizontal bar and between the first vertical column and the second vertical column, respectively, and a third V-shaped support frame and a fourth V-shaped support frame are arranged on the upper and lower sides of the second horizontal bar and between the second vertical column and the third vertical column, respectively, so as to support and fix the positions of the first vertical column, the second vertical column and the third vertical column.

[0007] The lower corner surfaces of the first V-shaped support frame and the third V-shaped support frame are respectively in abutment with the outer walls of the first horizontal rod and the second horizontal rod, a first bolt is vertically inserted into the first horizontal rod through the corner of the first V-shaped support frame, a second bolt is vertically inserted into the second horizontal rod through the corner of the third V-shaped support frame, and the first V-shaped support frame and the third V-shaped support frame are correspondingly fixed above the first horizontal rod and the second horizontal rod; the lower corner surfaces of the second V-shaped support frame and the fourth V-shaped support frame are in abutment with the ground of the deep foundation pit, two pins are respectively vertically inserted into the ground of the deep foundation pit through the corners of the second V-shaped support frame and the fourth V-shaped support frame, and the second V-shaped support frame and the fourth V-shaped support frame are fixed to the ground of the deep foundation pit, thereby increasing the stability of the support body.

[0008] The left and right inclined support surfaces of the first V-shaped support frame and the left and right inclined support surfaces of the third V-shaped support frame are respectively provided with vertical support connecting rods between the first horizontal rod and the second horizontal rod, the bottom of each support connecting rod is connected with a limiting metal block, the first horizontal rod and the second horizontal rod are respectively provided with limiting grooves matched with the limiting metal blocks, a magnet block is arranged in the limiting groove, the limiting metal block is inserted into the limiting groove and magnetically adsorbed and connected with the magnet block in the limiting groove, thereby supporting and fixing the first V-shaped support frame and the third V-shaped support frame.

[0009] The first end of the first horizontal rod towards the first stand is connected with a first clamping block, the first stand is provided with a first clamping groove matched with the first clamping block, and a third bolt is transversely inserted into the first stand and the first clamping groove from the side away from the first clamping groove and inserted into the inside of the first clamping block, thereby fixing the first horizontal rod on the first stand.

[0010] The first end of the first horizontal rod towards the first stand is connected with a first clamping block, the first stand is provided with a first clamping groove matched with the first clamping block, and a third bolt is transversely inserted into the first stand and the first clamping groove from the side away from the first clamping groove and inserted into the inside of the first clamping block, thereby fixing the first horizontal rod on the first stand.

[0011] The second cross bar is sequentially connected with a second clamping block and a third clamping block at one end of the second upright column, the center lines of the second clamping block and the third clamping block are consistent, and the length and width of the third clamping block are smaller than those of the second clamping block; the second upright column is inwardly recessed to form a second clamping groove matched with the second clamping block; the first cross bar is connected with a fourth clamping block at one end of the second upright column, the second upright column is provided with a fourth clamping groove matched with the fourth clamping block, the fourth clamping block is inwardly recessed to form a third clamping groove matched with the third clamping block, and the second clamping groove and the third clamping groove are in communication.

[0012] The coating plate comprises a support plate in a grid structure, and first pouring layers, protective layers and second pouring layers are sequentially arranged from the inside to the outside of the two outer side walls of the support plate.

[0013] The two ends of the first V-shaped support frame and the second V-shaped support frame are respectively connected with the first upright column and the second upright column and are fixed by bolts, and the two ends of the third V-shaped support frame and the fourth V-shaped support frame are respectively connected with the second upright column and the third upright column and are fixed by bolts.

[0014] The beneficial effects of the present application are as follows:

[0015] 1、In the present application, the support body is provided with a coating plate on the two outer side walls, and the support body is clamped and fixed on the side wall of the design pit by the coating plate. The coating plate on the side of the deep foundation pit abuts against the side wall of the deep foundation pit. The coating plate not only enhances the supporting effect of the support body on the deep foundation pit, but also improves the protection performance of the support body. In addition, the protection of the coating plate on the support body makes it reusable, thereby increasing the environmental protection performance of the device.

[0016] 2、In the present application, the first bolt and the second bolt are arranged to facilitate the disassembly and installation of the first V-shaped support frame and the third V-shaped support frame. The pin facilitates the disassembly and installation of the second V-shaped support frame and the fourth V-shaped support frame. The first clamping block to the fifth clamping block, the first clamping groove to the fifth clamping groove, the third bolt and the fourth bolt facilitate the disassembly and installation of the first cross bar and the second cross bar, thereby facilitating the assembly and disassembly of the device by the staff, and improving the construction efficiency.

[0017] 3、The first cross bar, the second cross bar, the first V-shaped support frame, the second V-shaped support frame, the third V-shaped support frame and the fourth V-shaped support frame are arranged, so that the connection between the first stand and the second stand and the connection between the third stand and the fourth stand are more stable, and the setting of the coating plate increases the stability of the whole support body; the setting of the protective layer and the support plate in the coating plate makes the first pouring layer and the second pouring layer more stable after pouring concrete, and improves the safety protection performance of the device. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the application;

[0019] Figure 2 It is a sectional view structural schematic diagram of the application;

[0020] Figure 3 It is a sectional view structural schematic diagram of the application in which the coating plate clamps and fixes the support body at the side wall of the deep foundation pit;

[0021] Figure 4 It is Figure 1 The local structure enlarged view of A in the application;

[0022] Figure 5 It is Figure 2 The local structure enlarged view of B in the application;

[0023] Figure 6 It is Figure 2 The local structure enlarged view of C in the application;

[0024] Figure 7 It is Figure 2 The local structure enlarged view of D in the application.

[0025] In the figure:

[0026] 1, support body; 2, deep foundation pit; 3, coating plate; 4, first stand; 5, second stand; 6, third stand; 7, first cross bar; 8, second cross bar; 9, first V-shaped support frame; 10, second V-shaped support frame; 11, third V-shaped support frame; 12, fourth V-shaped support frame; 13, first bolt; 14, second bolt; 15, pin; 18, third bolt; 19, second clamping block; 20, third clamping block; 21, second clamping groove; 22, fourth clamping block; 23, third clamping groove; 24, fourth clamping groove; 25, fifth clamping block; 26, fifth clamping groove; 27, fourth bolt; 28, support connecting rod; 29, limiting metal block; 30, limiting groove; 31, magnet block; 32, support plate; 33, first pouring layer; 34, protective layer; 35, second pouring layer. DETAILED DESCRIPTION

[0027] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of the present application.

[0028] Please refer to Figures 1-7 A concrete structure for deep foundation pit supporting structure, including support body 1 and respectively arranged in the support body 1 both outer side wall and the clamping and fixed support body 1 in deep foundation pit 2 side wall at the coating plate 3, the coating plate 3 is close to deep foundation pit 2 side wall one side and deep foundation pit 2 side wall abuts, the setting of coating plate 3 makes the support body 1 can be reused, improve the protection performance to support body 1, increase the practicability of the whole device;The support body 1 includes first vertical column 4, second vertical column 5, third vertical column 6 that are placed in deep foundation pit 2 bottom and are located in the same vertical plane in proper order, first cross bar 7 that connects first vertical column 4 and second vertical column 5 and second cross bar 8 that connects second vertical column 5 and third vertical column 6, first cross bar 7 and second cross bar 8 are located in the same horizontal plane;The upper and lower sides of first cross bar 7 and between first vertical column 4 and second vertical column 5 are respectively provided with first V-shaped support frame 9 and second V-shaped support frame 10, and the upper and lower sides of second cross bar 8 and between second vertical column 5 and third vertical column 6 are respectively provided with third V-shaped support frame 11 and fourth V-shaped support frame 12, the setting of four groups of support frames increases the support stability between first vertical column 4 and second vertical column 5 and between second vertical column 5 and third vertical column 6.

[0029] The two ends of first V-shaped support frame 9 and second V-shaped support frame 10 are respectively connected with first vertical column 4 and second vertical column 5 and fixed by bolts, and the two ends of third V-shaped support frame 11 and fourth V-shaped support frame 12 are respectively connected with second vertical column 5 and third vertical column 6 and fixed by bolts;The lower surfaces of the corners of first V-shaped support frame 9 and third V-shaped support frame 11 abut with the outer walls of first cross bar 7 and second cross bar 8 respectively, first bolt 13 vertically penetrates the corner of first V-shaped support frame 9 and inserts into the inside of first cross bar 7, and second bolt 14 vertically penetrates the corner of third V-shaped support frame 11 and inserts into the inside of second cross bar 8, so as to fix first V-shaped support frame 9 and third V-shaped support frame 11 above first cross bar 7 and second cross bar 8 respectively and fix first V-shaped support frame 9 and third V-shaped support frame 11;The lower surfaces of the corners of second V-shaped support frame 10 and fourth V-shaped support frame 12 abut with the ground of deep foundation pit 2, and two pins 15 vertically penetrate the corners of second V-shaped support frame 10 and fourth V-shaped support frame 12 and insert into the inside of the ground of deep foundation pit 2, so as to fix second V-shaped support frame 10 and fourth V-shaped support frame 12 on the ground of deep foundation pit 2, and further increase the stability of support body 1.

[0030] Further, the left and right two inclined support surfaces of the first V-shaped support frame 9 and the first horizontal rod 7 and the left and right two inclined support surfaces of the third V-shaped support frame 11 and the second horizontal rod 8 are respectively provided with vertical support connecting rods 28, the bottom of each support connecting rod 28 is connected with a limiting metal block 29, the first horizontal rod 7 and the second horizontal rod 8 are respectively provided with limiting grooves 30 matched with the limiting metal block 29, a magnet block 31 is arranged in the limiting groove 30, the limiting metal block 29 is inserted into the limiting groove 30 and magnetically adsorbed and connected with the magnet block 31 in the limiting groove 30, thereby supporting and fixing the first V-shaped support rod and the third V-shaped support frame 11.

[0031] Further, one end of the first horizontal rod 7 towards the first stand 4 is connected with a first clamping block, the first stand 4 is provided with a first clamping groove matched with the first clamping block, a third bolt 18 is transversely inserted into the first stand 4, the first clamping groove and inserted into the inside of the first clamping block from the side away from the first clamping groove, thereby fixing the first horizontal rod 7 on the first stand 4; one end of the second horizontal rod 8 towards the third stand 6 is connected with a fifth clamping block 25, the third stand 6 is provided with a fifth clamping groove 26 matched with the fifth clamping block 25, a fourth bolt 27 is transversely inserted into the third stand 6, the fifth clamping groove 26 and inserted into the inside of the fifth clamping block 25 from the side away from the fifth clamping groove 26, thereby fixing the second horizontal rod 8 on the third stand 6; one end of the second horizontal rod 8 towards the second stand 5 is connected with a second clamping block 19 and a third clamping block 20 in sequence, the center lines of the second clamping block 19 and the third clamping block 20 are consistent and the length and width of the third clamping block 20 are smaller than those of the second clamping block 19; the second stand 5 is inwardly recessed to be provided with a second clamping groove 21 matched with the second clamping block 19; one end of the first horizontal rod 7 towards the second stand 5 is connected with a fourth clamping block 22, the second stand 5 is provided with a fourth clamping groove 24 matched with the fourth clamping block 22, the fourth clamping block 22 is inwardly recessed to be formed with a third clamping groove 23 matched with the third clamping block 20, the second clamping groove 21 and the third clamping groove 23 are communicated. The fourth clamping block 22 on the first horizontal rod 7 is inserted into the fourth clamping groove 24 of the second stand 5, the second clamping block 19 on the second horizontal rod 8 is inserted into the second clamping groove 21 of the second stand 5, and at the same time, the third clamping block 20 in front of the second clamping block 19 is inserted into the third clamping groove 23 on the fourth clamping block 22, thereby fixing the first horizontal rod 7 and the second horizontal rod 8 on both sides of the second stand 5.

[0032] Further, the coating plate 3 comprises a support plate 32, and outer walls of the support plate 32 are sequentially provided with a first pouring layer 33, a protective layer 34 and a second pouring layer 35 from inside to outside; the first pouring layer 33 and the second pouring layer 35 are poured with concrete, the support plate 32 is a grid plate structure made of a metal material, so that the first pouring layer 33 is stably fixed on the support plate 32, the first protective layer 34 is made of rubber material, can absorb part of stress when the first pouring layer 33 and the second pouring layer 35 expand and contract with heat, enhance the stability of the coating plate 3, and prolong the service life of the coating plate 3.

[0033] The working principle of the present application is as follows:

[0034] In use, first, the first column 4, the second column 5 and the third column 6 are vertically placed on the ground of the deep foundation pit 2 in sequence, the first column 4, the second column 5 and the third column 6 are kept on the same vertical plane, the first clamping block and the fourth clamping block 22 at both ends of the first cross rod 7 are respectively inserted into the first clamping groove of the first column 4 and the fourth clamping groove 24 of the second column 5, the second clamping block 19 and the fifth clamping block 25 at both ends of the second cross rod 8 are respectively inserted into the second clamping groove 21 of the second column 5 and the fifth clamping groove 26 of the third column 6, the third bolt 18 is inserted into the first column 4 from the back side of the first clamping groove and penetrates into the inside of the first clamping block through the first clamping groove, so as to fix the first cross rod 7 on the first column 4; the fourth bolt 27 is inserted into the third column 6 from the back side of the fifth clamping groove 26 and penetrates into the inside of the fifth clamping block 25 through the fifth clamping groove 26, so as to fix the second cross rod 8 on the third column 6; then, the third clamping block 20 in front of the second clamping block 19 is inserted into the third clamping groove 23 on the fourth clamping block 22, and then the first cross rod 7 and the second cross rod 8 are respectively fixed on both sides of the second column 5.

[0035] Then, the first V-shaped support frame 9 and the second V-shaped support frame 10 are placed on the upper and lower sides of the first cross rod 7, the third V-shaped support frame 11 and the fourth V-shaped support frame 12 are placed on the upper and lower sides of the second cross rod 8, the first bolt 13 penetrates through the corner of the first V-shaped support frame 9 and is inserted into the inside of the first cross rod 7, the second bolt 14 penetrates through the corner of the third V-shaped support frame 11 and is inserted into the inside of the second cross rod 8, so as to respectively fix the two support frames above the first cross rod 7 and the second cross rod 8; the two pins 15 are respectively vertically inserted into the inside of the ground of the deep foundation pit 2 through the corners of the second V-shaped support frame 10 and the fourth V-shaped support frame 12, so as to respectively fix the second V-shaped support frame 10 and the fourth V-shaped support frame 12 on the bottom surface of the deep foundation pit 2, and then increase the stability of the support frame body 1. Then, the limiting metal blocks 29 at the lower ends of the support connecting rods 28 on both sides of the first V-shaped support frame 9 and the third V-shaped support frame 11 are inserted into the limiting grooves 30 on the first cross rod 7 and the second cross rod 8 in correspondence, so as to support and fix the first V-shaped support frame 9 and the third V-shaped support frame 11.

[0036] Finally, the coating plates 3 are arranged at the two outer side walls of the support body 1, the two coating plates 3 clamp and fix the support body 1 at the side wall of the deep foundation pit 2, the coating plate 3 close to one side of the deep foundation pit 2 abuts against the side wall of the deep foundation pit 2, thereby supporting the side wall of the deep foundation pit 2, the arrangement of the coating plate 3 not only enhances the supporting effect of the support body 1 on the deep foundation pit 2, but also improves the protection performance of the support body 1, in addition, the arrangement of the coating plate 3 makes the support body can be repeatedly used, increases the environmental protection performance of the device.

[0037] The above is only a specific embodiment of the present application, and does not limit the patent scope of the present application, any equivalent structural transformation using the content of the specification and drawings in the present application, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A concrete structure for deep excavation support, characterized by: The utility model relates to a kind of deep foundation pit support, including support body (1) and respectively being arranged in the coating plate (3) of support body (1) two outer side wall and the coating plate (3) of support body (1) clamping and fixed at deep foundation pit (2) side wall, the coating plate (3) of deep foundation pit (2) side wall abutment side near deep foundation pit (2) side wall;The support body (1) includes first vertical column (4), second vertical column (5), third vertical column (6) that are placed in deep foundation pit (2) bottom and located in same vertical plane in sequence, first cross bar (7) and second cross bar (8) connecting first vertical column (4) and second vertical column (5), and the second cross bar (8) of connecting second vertical column (5) and third vertical column (6), first cross bar (7) and second cross bar (8) are located in same horizontal plane;The upper and lower sides of first cross bar (7) and between first vertical column (4) and second vertical column (5) are respectively provided with first V-shaped support frame (9) and second V-shaped support frame (10), the upper and lower sides of second cross bar (8) and between second vertical column (5) and third vertical column (6) are respectively provided with third V-shaped support frame (11) and fourth V-shaped support frame (12), to support and fix the position of first vertical column (4), second vertical column (5) and third vertical column (6) further; The lower surface of the corner of first V-shaped support frame (9) and third V-shaped support frame (11) is respectively abutted with the outer wall of first cross bar (7) and second cross bar (8), first bolt (13) is vertically inserted into first cross bar (7) inside by passing the corner of first V-shaped support frame (9), second bolt (14) is vertically inserted into second cross bar (8) inside by passing the corner of third V-shaped support frame (11), first V-shaped support frame (9) and third V-shaped support frame (11) are respectively fixed above first cross bar (7) and second cross bar (8) correspondingly;The lower surface of the corner of second V-shaped support frame (10) and fourth V-shaped support frame (12) is all abutted with the ground of deep foundation pit (2), two pins (15) are respectively vertically inserted into the ground of deep foundation pit (2) inside by passing the corner of second V-shaped support frame (10) and fourth V-shaped support frame (12), second V-shaped support frame (10) and fourth V-shaped support frame (12) are respectively fixed on the ground of deep foundation pit (2); The left and right two inclined support surfaces of first V-shaped support frame (9) and between third V-shaped support frame (11) and second cross bar (8) are respectively provided with vertical support connecting rod (28), the bottom of each support connecting rod (28) is connected with limiting metal block (29), first cross bar (7) and second cross bar (8) are respectively provided with limiting slot (30) matched with limiting metal block (29), magnet block (31) is arranged in limiting slot (30), limiting metal block (29) is inserted into limiting slot (30) and is magnetically adsorbed with magnet block (31) in it, to support and fix first V-shaped support frame (9) and third V-shaped support frame (11) further. The two ends of the first V-shaped support frame (9) and the second V-shaped support frame (10) are connected with the first stand (4) and the second stand (5) respectively and fixed by bolts, and the two ends of the third V-shaped support frame (11) and the fourth V-shaped support frame (12) are connected with the second stand (5) and the third stand (6) respectively and fixed by bolts.

2. A concrete structure for deep excavation support as claimed in claim 1, wherein: The first cross bar (7) is connected with a first clamping block at one end facing the first stand (4), the first stand (4) is provided with a first clamping groove matched with the first clamping block, and a third bolt (18) penetrates into the first stand (4), the first clamping groove and the first clamping block from the side opposite to the first clamping groove to fix the first cross bar (7) on the first stand (4).

3. A concrete structure for deep excavation support as claimed in claim 2, wherein: The second cross bar (8) is connected with a fifth clamping block (25) at one end facing the third stand (6), the third stand (6) is provided with a fifth clamping groove (26) matched with the fifth clamping block (25), and a fourth bolt (27) penetrates into the third stand (6), the fifth clamping groove (26) and the fifth clamping block (25) from the side opposite to the fifth clamping groove (26) to fix the second cross bar (8) on the third stand (6).

4. A concrete structure for deep excavation support as claimed in claim 3 wherein: The second cross bar (8) is connected with a second clamping block (19) and a third clamping block (20) at one end facing the second stand (5) in sequence, the second clamping block (19) and the third clamping block (20) have the same center line and the length and width of the third clamping block (20) are smaller than those of the second clamping block (19); the second stand (5) is recessed inward to form a second clamping groove (21) matched with the second clamping block (19); the first cross bar (7) is connected with a fourth clamping block (22) at one end facing the second stand (5), the second stand (5) is provided with a fourth clamping groove (24) matched with the fourth clamping block (22), and the fourth clamping block (22) is recessed inward to form a third clamping groove (23) matched with the third clamping block (20), the third clamping groove (23) and the second clamping groove (21) are communicated.

5. A concrete structure for deep excavation support as claimed in claim 4 wherein: The coating plate (3) comprises a support plate (32) in a grid structure, and the two outer walls of the support plate (32) are sequentially provided with a first pouring layer (33), a protective layer (34) and a second pouring layer (35) from inside to outside; the support plate (32) is made of metal material, and the protective layer (34) is made of rubber material; the first pouring layer (33) and the second pouring layer (35) are poured with concrete.

Images