CN220868234U - A deep foundation pit retaining structure in water-rich stratum - Google Patents

Abstract

The utility model relates to the field of deep foundation pit support, in particular to a deep foundation pit support structure of a water-rich stratum. Including the steel reinforcement cage, horizontal steel reinforcement is installed to the arc surface of steel reinforcement cage, vertical steel reinforcement is installed to the arc surface of steel reinforcement cage, the drag hook muscle is installed to one side of steel reinforcement cage, the arc surface of drag hook muscle is equipped with adjusting structure, adjusting structure includes the joint board, the both sides of joint board all rotate and be connected with the lead screw, the one end fixedly connected with carousel of lead screw, the arc surface threaded connection of lead screw has the arc board, two the inner wall and the drag hook muscle looks butt of arc board, the inner wall and the arc surface looks butt of steel reinforcement cage of arc surface. The deep foundation pit support structure of the water-rich stratum has the advantages that the drag hook ribs can be conveniently and firmly fixed with the deep foundation pit support structure, the drag hook can be fixed by the drag hook ribs without using steel wires, and therefore the strength of the deep foundation pit support structure is improved.

Description

A deep foundation pit retaining structure in water-rich stratum

Technical Field

The utility model relates to the field of deep foundation pit enclosure, in particular to a deep foundation pit enclosure structure in a water-rich stratum.

Background technique

Foundation pit support is a measure of support, reinforcement and protection for the side walls of the foundation pit and the surrounding environment to ensure the safety of underground structure construction and the surrounding environment of the foundation pit.

The invention with publication number CN113322973B discloses a deep foundation pit retaining structure and a construction method thereof, and the technical scheme thereof is as follows: it comprises a plurality of concrete piles distributed along the periphery of the foundation pit, a steel cage is embedded in the concrete pile, the steel cage comprises transverse bars and vertical bars, the vertical bars pass through the concrete pile, a crown beam is arranged on the concrete pile, the crown beam comprises a plurality of blocks, each block is provided with a through hole for inserting the vertical bars, the vertical bars are fixed to the blocks through a first connecting piece, and two adjacent blocks are fixed through a second connecting piece. The application has the effect of saving resource waste and green energy saving.

With regard to the relevant contents mentioned above, the inventors believe that the following technical defects exist: in the prior art, during the installation process of the deep foundation pit retaining structure, hook bars are required to be used to reinforce and enhance the strength of the deep foundation pit retaining structure. The traditional method is to use steel wire ropes to fix the hook bars in the steel cage of the deep foundation pit retaining structure. However, the steel wire ropes need to be wrapped several times during use, which is inconvenient for personnel to use, and the steps for installing the hook bars are too cumbersome and inconvenient.

Therefore, it is necessary to provide a new deep foundation pit retaining structure in water-rich strata to solve the above-mentioned technical problems.

Utility Model Content

In order to solve the above technical problems, the utility model provides a deep foundation pit retaining structure in a water-rich stratum, comprising: a steel cage, wherein the arc surface of the steel cage is installed with transverse steel bars, the arc surface of the steel cage is installed with vertical steel bars, a hook bar is installed on one side of the steel cage, and the arc surface of the hook bar is provided with an adjustment structure, the adjustment structure comprises a connecting plate, both sides of the connecting plate are rotatably connected with a screw rod, one end of the screw rod is fixedly connected with a turntable, the arc surface of the screw rod is threadedly connected with an arc plate, the inner walls of the two arc plates are in contact with the hook bar, the inner wall of the arc surface is in contact with the arc surface of the steel cage, and a positioning rod is slidably penetrated through the side of the arc plate.

The effect achieved by the above-mentioned components is: when in use, the deep foundation pit retaining structure can increase the bending, shear and overturning resistance of the ground-connected wall, effectively reduce the thickness of the connecting wall, thereby achieving the purpose of reducing the total construction cost, and increase the anti-seepage and anti-seepage capabilities of the ground-connected wall, reducing the risk of water seepage, water gushing and sand gushing in the ground-connected wall during the excavation of the deep foundation pit. By setting the adjustment structure, the hook reinforcement can be conveniently and firmly fixed to the deep foundation pit retaining structure, and there is no need to use only steel wire to fix the hook reinforcement, thereby improving the strength of the deep foundation pit retaining structure.

Preferably, a positioning groove is formed on the arc surface of the positioning rod, and two positioning blocks are slidably connected to the inner wall of the positioning groove, and one side of the positioning block is fixedly connected to the arc plate.

The effect achieved by the above components is that when the arc plate moves along the arc plate of the positioning rod, the positioning block fixed on the arc plate will move along the inner wall of the positioning groove on the arc surface of the positioning rod, achieving the effect of making the movement process of the arc plate more stable.

Preferably, a plurality of protrusions are fixedly connected to the inner wall of the arc plate, and the protrusions are evenly distributed on the inner wall of the arc plate.

The effect achieved by the above components is that the convex column can increase the friction force of the inner wall of the arc plate, thereby achieving the effect of further fixing the hook bar.

Preferably, both ends of the positioning rod are fixedly connected with guide blocks, and the guide blocks are in a conical structure.

The effect achieved by the above components is that since the guide block fixed on the positioning rod has a small volume, it is convenient for the positioning rod to be inserted into the arc plate.

Preferably, the arc surface of the transverse steel bar is provided with an auxiliary structure, and the auxiliary structure includes a connecting frame, and the four corners of the inner wall of the connecting frame are fixedly connected with connecting columns, one end of the connecting column is slidably connected with a connecting rod, and the arc surface of the connecting column is threadedly connected with a pressure rod, one end of the pressure rod is abutted with the connecting rod, and the end of the connecting rod away from the connecting column is fixedly connected with a protective plate, and one side of the protective plate is abutted with the transverse steel bar.

The effect achieved by the above components is: by setting up auxiliary structures, personnel can easily adjust the protective plates to protect the corners of transverse steel bars of different sizes, thereby increasing the service life of the transverse steel bars and the service life of the deep foundation pit retaining structure.

Preferably, the arc surface of the connecting rod is sleeved with a spring, and two ends of the spring are fixedly connected to the connecting column and the protective plate respectively.

The effect achieved by the above components is that the spring can drive the protective plate to move in the direction of the transverse steel bars, thereby achieving the effect of quickly driving the protective plate.

Preferably, a rubber pad is fixedly connected to a side of the protective plate away from the connecting rod, and the rubber pad is adapted to the size of the inner wall of the protective plate.

The effect achieved by the above components is that the rubber pad can increase the friction between the protective plate and the transverse steel bars, thereby achieving the effect of making the protective plate and the transverse steel bars abut firmly.

Compared with the related art, the deep foundation pit retaining structure in water-rich strata provided by the utility model has the following beneficial effects:

The utility model provides a deep foundation pit retaining structure in a water-rich stratum. By arranging an adjustment structure, the hook reinforcement and the deep foundation pit retaining structure can be conveniently and firmly fixed, and the hook reinforcement can be fixed with only steel wire, thereby improving the strength of the deep foundation pit retaining structure.

By setting up auxiliary structures, personnel can easily adjust the protective plates to protect the corners of transverse steel bars of different sizes, thereby increasing the service life of the transverse steel bars and the service life of the deep foundation pit retaining structure.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a deep foundation pit retaining structure in a water-rich stratum provided by the utility model;

FIG2 is an enlarged view of point A shown in FIG1 ;

FIG3 is a schematic structural diagram of the adjustment structure shown in FIG1 ;

FIG4 is a schematic structural diagram of the auxiliary structure shown in FIG1 ;

FIG. 5 is an enlarged view of point B shown in FIG. 4 .

Numbers in the figure: 1. Steel cage; 2. Horizontal steel bars; 3. Adjustment structure; 31. Connecting plate; 32. Screw rod; 33. Turntable; 34. Arc plate; 35. Positioning rod; 36. Positioning groove; 37. Positioning block; 38. Guide block; 39. Bump; 4. Auxiliary structure; 41. Connecting frame; 42. Connecting column; 43. Connecting rod; 44. Pressure rod; 45. Protective plate; 46. Rubber pad; 47. Spring; 5. Vertical steel bars; 6. Hook bars.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

Please refer to Figures 1 to 5. An embodiment of the utility model provides a deep foundation pit retaining structure in a water-rich stratum, including: a steel cage 1, a transverse steel bar 2 is installed on the arc surface of the steel cage 1, a vertical steel bar 5 is installed on the arc surface of the steel cage 1, a hook bar 6 is installed on one side of the steel cage 1, an adjustment structure 3 is provided on the arc surface of the hook bar 6, and an auxiliary structure 4 is provided on the arc surface of the transverse steel bar 2.

The cam 33 is a substantially parallel plate 34 which is provided with a plurality of cams 36 which are provided on the upper and lower surfaces of the cam 34. The cam 33 is a substantially parallel plate 34 which is provided with a plurality of cams 36 which are provided on the lower surfaces of the cam 34. The strength of the deep foundation pit retaining structure is improved. The arc surface of the positioning rod 35 is provided with a positioning groove 36, and the inner wall of the positioning groove 36 is slidably connected with two positioning blocks 37. One side of the positioning block 37 is fixedly connected to the arc plate 34. When the arc plate 34 moves along the positioning rod 35 and the arc plate 34, the positioning block 37 fixed on the arc plate 34 will move along the inner wall of the positioning groove 36 on the arc surface of the positioning rod 35, achieving the effect of making the movement process of the arc plate 34 more stable. The inner wall of the arc plate 34 is fixedly connected with a plurality of protrusions 39, and the protrusions 39 are evenly distributed on the inner wall of the arc plate 34. The protrusions can increase the friction force of the inner wall of the arc plate 34, achieving the effect of further fixing the hook reinforcement 6. Both ends of the positioning rod 35 are fixedly connected with guide blocks 38. The guide blocks 38 have a conical structure. Since the guide blocks 38 fixed on the positioning rod 35 are small in size, it is convenient for the positioning rod 35 to be inserted into the arc plate 34.

In the embodiment of the present utility model, please refer to Figures 4 and 5. The auxiliary structure 4 includes a connection frame 41. The four corners of the inner wall of the connection frame 41 are fixedly connected with connection columns 42. One end of the connection column 42 is slidably connected with a connection rod 43. The arc surface of the connection column 42 is threadedly connected with a pressure rod 44. One end of the pressure rod 44 abuts against the connection rod 43. The end of the connection rod 43 away from the connection column 42 is fixedly connected with a protective plate 45. One side of the protective plate 45 abuts against the transverse steel bar 2. By setting the auxiliary structure 4, personnel can easily adjust the protective plate 45 to protect the corners of the transverse steel bars 2 of different sizes, thereby improving The service life of the transverse reinforcement 2 is prolonged, and the service life of the deep foundation pit retaining structure is improved. The arc surface of the connecting rod 43 is sleeved with a spring 47, and the two ends of the spring 47 are respectively fixedly connected to the connecting column 42 and the protective plate 45. The spring 47 can drive the protective plate 45 to move in the direction of the transverse reinforcement 2, so as to achieve the effect of quickly driving the protective plate 45. The side of the protective plate 45 away from the connecting rod 43 is fixedly connected with a rubber pad 46, and the rubber pad 46 is adapted to the size of the inner wall of the protective plate 45. The rubber pad 46 can increase the friction between the protective plate 45 and the transverse reinforcement 2, so as to achieve the effect of making the protective plate 45 abut against the transverse reinforcement 2 firmly.

The working principle of a deep foundation pit retaining structure in a water-rich stratum provided by the utility model is as follows: when in use, the deep foundation pit retaining structure can increase the bending, shear and overturning resistance of the ground-connected wall, effectively reduce the thickness of the connecting wall, thereby achieving the purpose of reducing the total construction cost, and can also increase the anti-seepage and anti-seepage capabilities of the ground-connected wall, and reduce the risk of water seepage, water gushing and sand gushing in the ground-connected wall during the excavation of the deep foundation pit. When it is necessary to install the hook bar 6 on the steel cage 1, first move the hook bar 6 to hang it on the steel cage 1 and the vertical steel bars 5, and then move the two arc plates 34, move the two arc plates 34 to the position of the hook bar 6, and then insert the positioning rod 35 into the two arc plates 34. Since the guide block 38 fixed on the positioning rod 35 is small in size, it is convenient to insert the positioning rod 35 into the arc plate 34, and then rotate the turntable 33 to drive the screw rod 32 The screw rod 32 drives the arc plate 34 threadedly connected thereto, so that the two arc plates 34 move in a direction approaching each other until the inner wall of the arc plate 34 abuts against the steel cage 1, the hook bar 6 and the vertical steel bar 5, which can make the hook bar 6 firmly fixed on the steel cage 1. When the arc plate 34 moves along the positioning rod 35, the positioning block 37 fixed on the arc plate 34 will move along the inner wall of the positioning groove 36 of the arc surface of the positioning rod 35, thereby achieving the effect of making the movement process of the arc plate 34 more stable. Among them, the convex column can increase the friction force of the inner wall of the arc plate 34, thereby achieving the effect of further fixing the hook bar 6 firmly. By setting the adjustment structure 3, the hook bar 6 can be conveniently fixed to the deep foundation pit retaining structure firmly, and there is no need to use only steel wire to fix the hook bar 6, thereby improving the strength of the deep foundation pit retaining structure.

When it is necessary to protect the corners of the transverse reinforcement 2, first move the connecting frame 41 to the outside of the transverse reinforcement 2, and then rotate the pressure rod 44 to separate the connecting rod 43. At this time, the spring 47 can drive the protective plate 45 to move in the direction of the transverse reinforcement 2, thereby achieving the effect of quickly driving the protective plate 45. When the protective plate 45 abuts against the transverse reinforcement 2, the pressure rod 44 is rotated to abut against the connecting rod 43, so as to fix the protective plate 45. The rubber pad 46 on the inner wall of the protective plate 45 can increase the friction between the protective plate 45 and the transverse reinforcement 2, thereby achieving the effect of making the protective plate 45 abut against the transverse reinforcement 2 firmly. By setting the auxiliary structure 4, personnel can easily adjust the protective plate 45 to protect the corners of transverse reinforcements 2 of different sizes, thereby improving the service life of the transverse reinforcement 2 and the service life of the deep foundation pit retaining structure.

The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims (7)

1. A deep foundation pit retaining structure in a water-rich stratum, comprising a steel cage (1), characterized in that: a transverse steel bar (2) is installed on the circular arc surface of the steel cage (1), a vertical steel bar (5) is installed on the circular arc surface of the steel cage (1), a hook bar (6) is installed on one side of the steel cage (1), and an adjustment structure (3) is provided on the circular arc surface of the hook bar (6), and the adjustment structure (3) comprises a connecting plate (31), both sides of the connecting plate (31) are rotatably connected with a screw rod (32), one end of the screw rod (32) is fixedly connected with a rotating disk (33), the circular arc surface of the screw rod (32) is threadedly connected with an arc plate (34), the inner walls of the two arc plates (34) are in contact with the hook bar (6), the inner wall of the arc surface is in contact with the arc surface of the steel cage (1), and a positioning rod (35) is slidably penetrated through the side of the arc plate (34). 2. A deep foundation pit retaining structure in a water-rich stratum according to claim 1, characterized in that a positioning groove (36) is provided on the arc surface of the positioning rod (35), and two positioning blocks (37) are slidably connected to the inner wall of the positioning groove (36), and one side of the positioning block (37) is fixedly connected to the arc plate (34). 3. A deep foundation pit retaining structure in a water-rich stratum according to claim 1, characterized in that a plurality of protrusions (39) are fixedly connected to the inner wall of the arc plate (34), and the protrusions (39) are evenly distributed on the inner wall of the arc plate (34). 4. A water-rich stratum deep foundation pit retaining structure according to claim 1, characterized in that both ends of the positioning rod (35) are fixedly connected with guide blocks (38), and the guide blocks (38) are of conical structure. 5. A deep foundation pit retaining structure in a water-rich stratum according to claim 1, characterized in that an auxiliary structure (4) is provided on the arc surface of the transverse steel bar (2), and the auxiliary structure (4) includes a connecting frame (41), and the four corners of the inner wall of the connecting frame (41) are fixedly connected with connecting columns (42), one end of the connecting column (42) is slidably connected with a connecting rod (43), and the arc surface of the connecting column (42) is threadedly connected with a pressure rod (44), one end of the pressure rod (44) is abutted with the connecting rod (43), and the end of the connecting rod (43) away from the connecting column (42) is fixedly connected with a protective plate (45), and one side of the protective plate (45) is abutted with the transverse steel bar (2). 6. A deep foundation pit retaining structure in a water-rich stratum according to claim 5, characterized in that the arc surface of the connecting rod (43) is sleeved with a spring (47), and the two ends of the spring (47) are respectively fixedly connected to the connecting column (42) and the protective plate (45). 7. A deep foundation pit retaining structure in a water-rich stratum according to claim 5, characterized in that a rubber pad (46) is fixedly connected to the side of the protective plate (45) away from the connecting rod (43), and the rubber pad (46) is adapted to the size of the inner wall of the protective plate (45).