Supporting structure for deep foundation pit

Abstract

The utility model relates to the technical field of deep foundation pit construction, and discloses a supporting structure for a deep foundation pit, which comprises a steel plate, the front end of the steel plate is fixedly connected with a transverse plate, the front end of the transverse plate is provided with a vertical plate, the rear end of the vertical plate is provided with a groove, and the front end of the steel plate is provided with a fixed seat I and a fixed seat II. According to the supporting structure for the deep foundation pit, the width-adjustable supporting pipe assembly is arranged, when the jacking pipe has no appropriate size, the supporting pipe assembly is selected as a transverse supporting piece, the supporting pipe assembly is combined and fixed with the first vertical pipe according to the requirement during installation, the central pipe can be driven to rotate by pulling a handle, and a supporting pipe body extends towards the two ends under the limiting effect of a limiting telescopic pipe; a hand drill can also be selected to be inserted into the connecting groove to drive the second gear to rotate and drive the first gear in meshed connection to rotate, butt joint with the jacking pipe is facilitated, and manpower is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to deep foundation pit construction technical field, concretely is a kind of support structure for deep foundation pit. BACKGROUND

[0002] Foundation pit is the soil pit that is excavated according to the base elevation and the foundation plane size at the foundation design position;Foundation pit engineering is a underground space that is excavated from ground down, since new excavation end face is formed after excavation, the stability of original structure of rock mass is destroyed, landslide, collapse and other safety construction are prone to occur in construction process;To protect the stability of foundation pit engineering, the side wall in pit is usually provided with support structure;Foundation pit support structure is to protect the safety of underground structure construction and the environment around foundation pit, and support, reinforcement and protection measures are used to foundation pit side wall and surrounding environment.

[0003] The utility model discloses a kind of deep foundation pit support structures of Chinese utility model with patent announcement No.CN211312540U, the deep foundation pit support structure, by connecting rod stretching adjusting rod, to facilitate the position of base, it is convenient to support, when extruding, by pushing first movable rod while compressing first spring, by pushing second movable rod while compressing second spring, by first spring and second spring play buffering protection effect, to improve the toughness of support device, improve the service life of device, the novel is convenient to operate, more practical, it is suitable for extensive promotion and use.Deep foundation pit support structure with such structure can only support single side of deep foundation pit, and the support effect is limited. SUMMARY

[0004] In view of the insufficient support strength of the existing deep foundation pit support structure, which causes limited support effect, the purpose of the utility model is to provide a deep foundation pit support structure with high support strength, to effectively solve the problems in the prior art.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is:

[0006] A deep foundation pit support structure, comprising a steel plate, a horizontal plate is fixedly connected to the front end of the steel plate, a vertical plate is arranged at the front end of the horizontal plate, a groove is formed in the rear end of the vertical plate, a first fixing seat and a second fixing seat are arranged at the front end of the steel plate, a slot is formed in the rear end of the first fixing seat and the second fixing seat, an adjusting pipe is fixedly connected to the front end of the first fixing seat, a vertical pipe is arranged in front of the steel plate, a support pipe assembly is fixedly connected to the upper end of the vertical pipe, and a top pipe is fixedly connected to the two sides of the support pipe assembly.

[0007] The adjusting pipe comprises a first rotating seat, an elongated pipe one, an elongated pipe two and a second rotating seat, the elongated pipe one is rotatably connected to the upper end of the first rotating seat, the elongated pipe two is slidably connected to the upper end of the elongated pipe one, and the second rotating seat is fixedly connected to the upper end of the elongated pipe two.

[0008] Preferably, the horizontal plate is perpendicular to the vertical plate, and is fixed to the steel plate by bolts, and the groove is matched with the horizontal plate.

[0009] By the above technical scheme, the horizontal plate and the vertical plate are arranged, the steel plate is installed on the inner wall of the deep foundation pit, the horizontal plate is fixed at intervals, and the horizontal plate is fixed on the surface of the steel plate, the vertical plate is fixed at intervals, and the vertical plate is fixed on the surface of the steel plate, the groove is matched with the horizontal plate, and the horizontal plate and the vertical plate are reinforced by the steel plate.

[0010] Preferably, one end of the adjusting pipe is fixedly connected with the fixed seat one, and the other end of the adjusting pipe is fixedly connected with the fixed seat two.

[0011] By the above technical scheme, the fixed seat one and the fixed seat two are fixedly installed at the intersection of the horizontal plate and the vertical plate, one fixed seat two is arranged at the center of every four fixed seat ones, one end of the adjusting pipe is fixedly installed at the front end of the fixed seat one, the total length of the extension pipe one and the extension pipe two is adjusted, the other end of the adjusting pipe is fixedly connected with the outer side of the fixed seat two, and the extension pipe one and the extension pipe two are welded and locked after adjustment, at this time, the fixed seat one and the fixed seat two are fixed structures, and the structural strength of the lifting support structure is improved.

[0012] Preferably, the fixed seat two is fixedly connected with the top pipe, and the vertical pipe one is arranged on the center line of the two symmetrical steel plates.

[0013] By the above technical scheme, according to the inner diameter of the deep foundation pit, the top pipe is installed on the center line of the two symmetrical steel plates, and a top pipe with appropriate length is selected and installed on the surface of the fixed seat two until the vertical pipe one is clamped by the top pipe, the steel plate is expanded by the top pipe in the transverse direction, the structural stability of the deep foundation pit is maintained, and collapse is avoided.

[0014] Preferably, the support pipe assembly comprises a vertical pipe two, a pipe seat, a center pipe, a gear one, a handle, a support pipe body, a limiting telescopic pipe, a gear two and a connecting groove, the pipe seat is fixedly connected to the left and right sides of the vertical pipe two, the center pipe is rotatably connected to the center of the pipe seat, the gear one is fixedly connected to the outer side of the center pipe, the handle is fixedly connected to the outer side of the center pipe, the support pipe body is arranged in the center of the center pipe, the limiting telescopic pipe is arranged on the outer side of the support pipe body, the gear two is rotatably connected to the left side of the vertical pipe two, and the connecting groove is formed in the left side of the gear two.

[0015] By the above technical scheme, the width-adjustable support pipe assembly is arranged, and when the top pipe does not have appropriate size, the support pipe assembly is selected as the transverse support piece.

[0016] Preferably, the handle, the support pipe body and the limiting telescopic pipe are provided with the same two groups, and the limiting telescopic pipe has the same structure as the adjusting pipe.

[0017] Through the technical scheme, the support pipe assembly is combined and fixed with the stand pipe according to requirements during installation.

[0018] Preferably, the support pipe body is provided with threads on the outer wall, and the support pipe body is in threaded connection with the central pipe.

[0019] Through the technical scheme, the central pipe can be rotated by pulling the handle, the support pipe body is in threaded connection with the central pipe, and the support pipe body is elongated to two ends under the limiting action of the limiting telescopic pipe until the support pipe body is butted with the top pipe installed on the surface of the fixed seat two, thereby forming a transverse support structure.

[0020] Preferably, the gear one is in meshing connection with the gear two, and the connecting groove is in an internal hexagonal structure.

[0021] Through the technical scheme, a hand drill can also be selected to be inserted into the connecting groove to drive the gear two to rotate, thereby driving the meshing connected gear one to rotate, facilitating butt joint with the top pipe, saving manpower, and enabling the top pipe or the support pipe assembly to be selected to be used to reinforce the steel plate according to the actual inner diameter of the deep foundation pit, the adjusting pipe being matched with the horizontal plate and the vertical plate to increase the contact area with the steel plate and improve the reinforcement effect, thereby ensuring the construction safety of the deep foundation pit.

[0022] Compared with the prior art, the support structure for a deep foundation pit has the following beneficial effects:

[0023] 1、The support structure for a deep foundation pit is provided with a horizontal plate and a vertical plate, the steel plate is installed on the inner wall of the deep foundation pit during deep foundation pit construction, the horizontal plate is kept at an interval and fixed at a fixed interval, is horizontally fixed and installed on the surface of the steel plate, the vertical plate is kept at an interval and fixed at a fixed interval, is vertically fixed and installed on the surface of the steel plate, the groove is matched with the horizontal plate, the horizontal plate and the vertical plate reinforce the steel plate, the fixed seat one and the fixed seat two are both fixed and installed at the intersection of the horizontal plate and the vertical plate, one fixed seat two is arranged at the center of every four fixed seat ones, one end of the adjusting pipe is fixed and installed at the front end of the fixed seat one, the total length of the sliding adjusting elongated pipe one and the elongated pipe two is adjusted, the other end of the adjusting pipe is fixedly connected with the outer side of the fixed seat two, the elongated pipe one and the elongated pipe two are welded and locked after adjustment, at this time, the fixed seat one and the fixed seat two are fixed structures, the structural strength of the support structure is improved, the top pipe is installed on the center line of the two symmetrical steel plates according to the inner diameter of the deep foundation pit, the top pipe of an appropriate length is selected and installed on the surface of the fixed seat two until the top pipe clamps the stand pipe one, the top pipe horizontally supports the steel plate apart, the structure of the deep foundation pit is kept stable, and collapse is avoided.

[0024] 2, the support structure for deep foundation pit, set up the width adjustable support pipe assembly, when the top pipe does not have proper size, select the support pipe assembly as the transverse support, the support pipe assembly is installed according to demand and a combination of fixed pipe, can be driven by pulling handle center pipe rotation, under the limiting action of limiting telescopic pipe, the support pipe body elongates to both ends, until the support pipe body and the top pipe installed on the surface of fixed seat two butt joint, form transverse support structure, also can select to use hand drill inserted into connecting groove, drive gear two rotation, drive meshed gear one rotation, facilitate butt joint with top pipe, save manpower, can according to the actual inner diameter of the site deep foundation pit, select to use top pipe or support pipe assembly to reinforce the steel plate, can be flexibly set up multiple groups, adjusting pipe and cross plate, vertical plate cooperate, increase the contact area with the steel plate, improve the reinforcement effect, ensure the construction safety of deep foundation pit, the assembly of each component is convenient, the deep foundation pit construction is completed and can be disassembled and reused. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is deep foundation pit support structure first perspective three-dimensional structure schematic view in the utility model;

[0026] Figure 2 It is deep foundation pit support structure first perspective three-dimensional structure schematic view in the utility model;

[0027] Figure 3 It is steel plate and cross plate split structure schematic view in the utility model;

[0028] Figure 4 It is adjusting pipe and top pipe split structure schematic view in the utility model;

[0029] Figure 5 It is adjusting pipe amplification structure schematic view in the utility model.

[0030] Wherein: 1, steel plate; 2, cross plate; 3, vertical plate; 4, recess; 5, fixed seat one; 6, slot; 7, fixed seat two; 8, adjusting pipe; 801, rotating seat one; 802, extension pipe one; 803, extension pipe two; 804, rotating seat two; 9, fixed pipe one; 10, support pipe assembly; 1001, fixed pipe two; 1002, pipe seat; 1003, center pipe; 1004, gear one; 1005, handle; 1006, support pipe body; 1007, limiting telescopic pipe; 1008, gear two; 1009, connecting groove; 11, top pipe. DETAILED DESCRIPTION

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Example 1:

[0033] like Figures 1-2 As shown in the figure, this example provides a support structure for deep foundation pits, including a steel plate 1, a horizontal plate 2 fixedly connected to the front end of the steel plate 1, a vertical plate 3 set at the front end of the horizontal plate 2, a groove 4 opened at the rear end of the vertical plate 3, a fixing seat 5 and a fixing seat 7 set at the front end of the steel plate 1, slots 6 are opened at the rear ends of both fixing seat 5 and fixing seat 7, an adjusting pipe 8 is fixedly connected to the front end of fixing seat 5, a vertical pipe 9 is set in front of the steel plate 1, a support pipe assembly 10 is fixedly connected to the upper end of the vertical pipe 9, and jacking pipes 11 are fixedly connected to both sides of the support pipe assembly 10.

[0034] See Figure 3 The adjusting pipe 8 in the support structure for this deep foundation pit includes a pivot 801, an extension pipe 802, an extension pipe 803, and a pivot 804. The upper end of the pivot 801 is rotatably connected to the extension pipe 802, the upper end of the extension pipe 802 is slidably connected to the extension pipe 803, and the upper end of the extension pipe 803 is fixedly connected to the pivot 804.

[0035] See Figure 2 and Figure 3 In this deep foundation pit support structure, the horizontal plate 2 and the vertical plate 3 are perpendicular to each other and fixed to the steel plate 1 with bolts. The groove 4 is adapted to the horizontal plate 2. In this way, with the horizontal plate 2 and the vertical plate 3 set up, during the construction of the deep foundation pit, the steel plate 1 is installed on the inner wall of the deep foundation pit, the horizontal plate 2 is fixedly installed horizontally on the surface of the steel plate 1 at a fixed interval, and the vertical plate 3 is fixedly installed vertically on the surface of the steel plate 1 at a fixed interval. The groove 4 matches the horizontal plate 2, and the horizontal plate 2 and the vertical plate 3 reinforce the steel plate 1.

[0036] See Figures 1 to 3The one end of the adjusting pipe 8 in the support structure for deep foundation pit is fixedly connected with the first fixed seat 5, and the other end of the adjusting pipe 8 is fixedly connected with the second fixed seat 7. In this way, the first fixed seat 5 and the second fixed seat 7 are fixedly installed at the intersection of the horizontal plate 2 and the vertical plate 3, one second fixed seat 7 is arranged at the center of every four first fixed seats 5, the one end of the adjusting pipe 8 is fixedly installed at the front end of the first fixed seat 5, the total length of the first elongated pipe 802 and the second elongated pipe 803 is adjusted, the other end of the adjusting pipe 8 is fixedly connected with the outside of the second fixed seat 7, the first elongated pipe 802 and the second elongated pipe 803 are welded and locked after the adjustment is completed, at this time, the first fixed seat 5 and the second fixed seat 7 are fixed structures, and the structural strength of the support structure is improved.

[0037] Referring to Figures 1 to 3 The second fixed seat 7 in the support structure for deep foundation pit is fixedly connected with the top pipe 11, and the first vertical pipe 9 is arranged on the center line of the two symmetrical steel plates 1. In this way, according to the inner diameter of the deep foundation pit, the top pipe 11 is installed on the center line of the two symmetrical steel plates 1, the top pipe 11 with an appropriate length is selected and installed on the surface of the second fixed seat 7 until the first vertical pipe 9 is clamped by the top pipe 11, the steel plate 1 is supported open by the top pipe 11 in the transverse direction, the structural stability of the deep foundation pit is maintained, and collapse is avoided.

[0038] Embodiment two

[0039] The embodiment is further provided with a specific structural scheme for the scheme of embodiment one.

[0040] Referring to Figure 4 and Figure 5 The embodiment is further provided with a specific structural scheme for the scheme of embodiment one.

[0041] In combination with the drawings, the support pipe assembly 10 includes a second vertical pipe 1001, a pipe seat 1002, a center pipe 1003, a gear one 1004, a handle 1005, a support pipe body 1006, a limiting telescopic pipe 1007, a gear two 1008 and a connecting groove 1009.

[0042] The pipe seat 1002 is fixedly connected to the two sides of the second vertical pipe 1001, the center pipe 1003 is rotatably connected to the center of the pipe seat 1002, the gear one 1004 is fixedly connected to the outside of the center pipe 1003, the handle 1005 is fixedly connected to the outside of the center pipe 1003, the support pipe body 1006 is arranged at the center of the center pipe 1003, the limiting telescopic pipe 1007 is arranged at the outside of the support pipe body 1006, the gear two 1008 is rotatably connected to the left side of the second vertical pipe 1001, and the connecting groove 1009 is formed in the left side of the gear two 1008.

[0043] The support pipe assembly 10 with adjustable width is arranged here, and when the top pipe 11 does not have an appropriate size, the support pipe assembly 10 is selected as a transverse support piece.

[0044] Further, the handle 1005, the support pipe body 1006, and the limiting telescopic pipe 1007 are provided with the same two groups in the present example, and the limiting telescopic pipe 1007 has the same structure as the adjusting pipe 8. In this way, the support pipe assembly 10 is combined and fixed with the vertical pipe 1 9 according to the requirements during installation.

[0045] Further, the outer wall of the support pipe body 1006 is provided with threads in the present example, and the support pipe body 1006 is connected with the center pipe 1003 in a threaded manner. In this way, the center pipe 1003 can be rotated by pulling the handle 1005, and the support pipe body 1006 is connected with the center pipe 1003 in a threaded manner. Under the limiting action of the limiting telescopic pipe 1007, the support pipe body 1006 is elongated to both ends until the support pipe body 1006 is connected with the top pipe 1 1 installed on the surface of the fixed seat two 7, forming a horizontal support structure.

[0046] Further, the gear one 1004 and the gear two 1008 are connected in a meshing manner in the present example, and the connecting groove 1009 has an internal hexagonal structure. In this way, a hand drill can also be selected to be inserted into the connecting groove 1009 to drive the gear two 1008 to rotate, thereby driving the meshing gear one 1004 to rotate, facilitating the connection with the top pipe 1 1, saving manpower, and enabling the top pipe 1 1 or the support pipe assembly 10 to be selected and used to reinforce the steel plate 1 according to the actual inner diameter of the deep foundation pit. The adjusting pipe 8 cooperates with the horizontal plate 2 and the vertical plate 3 to increase the contact area with the steel plate 1, improve the reinforcement effect, and ensure the construction safety of the deep foundation pit.

[0047] The use process of the support structure for deep foundation pit will be specifically described below in combination with the accompanying drawings. Figures 1 to 5

[0048] In use, the steel plate 1 is installed on the inner wall of the deep foundation pit, the horizontal plate 2 is kept at an interval and fixed at a fixed interval, and is horizontally fixed and installed on the surface of the steel plate 1. The vertical plate 3 is kept at an interval and fixed at a fixed interval, and is vertically fixed and installed on the surface of the steel plate 1. The groove 4 matches the horizontal plate 2, the horizontal plate 2 and the vertical plate 3 reinforce the steel plate 1, the fixed seat one 5 and the fixed seat two 7 are both fixed and installed at the intersection of the horizontal plate 2 and the vertical plate 3, one fixed seat two 7 is arranged at the center of every four fixed seat ones 5, one end of the adjusting pipe 8 is fixed and installed in front of the fixed seat one 5, and the total length of the elongated pipe one 802 and the elongated pipe two 803 is adjusted.

[0049] The other end of the adjusting pipe 8 is fixedly connected with the outer side of the fixed seat two 7, the elongated pipe one 802 and the elongated pipe two 803 are welded and locked after adjustment, the fixed seat one 5 and the fixed seat two 7 are fixed structures at this time, and the structural strength of the support structure is improved.

[0050] ​According to the inner diameter of the deep foundation pit, the jacking pipe 11 is installed on the center line of the two symmetrical steel plates 1, the jacking pipe 11 with appropriate length is selected and installed on the surface of the fixed seat two 7 until the jacking pipe 11 clamps the vertical pipe one 9, the jacking pipe 11 laterally supports the steel plate 1 to keep the structure of the deep foundation pit stable and avoid collapse.

[0051] When the jacking pipe 11 is not of appropriate size, the support pipe assembly 10 is selected as the lateral support, the support pipe assembly 10 is installed and combined with the vertical pipe one 9 according to requirements, the center pipe 1003 can be rotated by pulling the handle 1005, the support pipe body 1006 is threadedly connected with the center pipe 1003, the support pipe body 1006 is elongated to both ends under the limiting action of the limiting telescopic pipe 1007 until the support pipe body 1006 is connected with the jacking pipe 11 installed on the surface of the fixed seat two 7 to form a lateral support structure, a hand drill can also be selected to be inserted into the connecting groove 1009 to drive the gear two 1008 to rotate to drive the meshed gear one 1004 to rotate, which is convenient for connecting with the jacking pipe 11 and saves manpower.

[0052] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A support structure for deep foundation pit comprising a steel plate (1), characterized in that: The front end of the steel plate (1) is fixedly connected with a horizontal plate (2), the front end of the horizontal plate (2) is provided with a vertical plate (3), the rear end of the vertical plate (3) is provided with a groove (4), the front end of the steel plate (1) is provided with a fixed seat one (5) and a fixed seat two (7), the rear end of the fixed seat one (5) and the fixed seat two (7) is provided with a slot (6), the front end of the fixed seat one (5) is fixedly connected with an adjusting pipe (8), the front of the steel plate (1) is provided with a vertical pipe one (9), the upper end of the vertical pipe one (9) is fixedly connected with a support pipe assembly (10), the both sides of the support pipe assembly (10) are fixedly connected with a top pipe (11). The adjusting pipe (8) comprises a rotating seat one (801), an elongated pipe one (802), an elongated pipe two (803) and a rotating seat two (804), the upper end of the rotating seat one (801) is rotatably connected with the elongated pipe one (802), the upper end of the elongated pipe one (802) is slidably connected with the elongated pipe two (803), and the upper end of the elongated pipe two (803) is fixedly connected with the rotating seat two (804).

2. The support structure for deep foundation pit according to claim 1, characterized in that: The horizontal plate (2) and the vertical plate (3) are perpendicular to each other and are fixed with the steel plate (1) by bolts, and the groove (4) is matched with the horizontal plate (2).

3. The support structure for deep foundation pit according to claim 1, characterized in that: One end of the adjusting pipe (8) is fixedly connected with the fixed seat one (5), and the other end of the adjusting pipe (8) is fixedly connected with the fixed seat two (7).

4. The support structure for deep foundation pit according to claim 1, characterized in that: The fixed seat two (7) is fixedly connected with the top pipe (11), and the vertical pipe one (9) is arranged on the center line of the two symmetrical steel plates (1).

5. The support structure for deep foundation pit according to claim 1, characterized in that: The support pipe assembly (10) comprises a vertical pipe two (1001), a pipe seat (1002), a center pipe (1003), a gear one (1004), a handle (1005), a support pipe body (1006), a limiting telescopic pipe (1007), a gear two (1008) and a connecting groove (1009), the both sides of the vertical pipe two (1001) are fixedly connected with the pipe seat (1002), the center pipe (1003) is rotatably connected with the pipe seat (1002), the outer side of the center pipe (1003) is fixedly connected with the gear one (1004), the outer side of the center pipe (1003) is fixedly connected with the handle (1005), the center pipe (1003) is provided with the support pipe body (1006), the outer side of the support pipe body (1006) is provided with the limiting telescopic pipe (1007), the left side of the vertical pipe two (1001) is rotatably connected with the gear two (1008), and the left side of the gear two (1008) is provided with the connecting groove (1009).

6. The support structure for deep foundation pit according to claim 5, characterized in that: The handle (1005), the support pipe body (1006) and the limiting telescopic pipe (1007) are provided with the same two groups, and the limiting telescopic pipe (1007) has the same structure as the adjusting pipe (8).

7. The support structure for deep foundation pit according to claim 6, characterized in that: The outer wall of the support pipe body (1006) is provided with threads, and the support pipe body (1006) is screw-connected with the center pipe (1003).

8. The support structure for deep foundation pit according to claim 7, characterized in that: The gear one (1004) and the gear two (1008) are meshingly connected, and the connecting groove (1009) is an internal hexagonal structure.

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