A pile foundation auxiliary positioning component for soft soil or marsh section bridge construction

Abstract

The utility model relates to the field of bridge pile foundation auxiliary positioning, disclose a kind of pile foundation auxiliary positioning component for soft soil or marsh section bridge construction, including casing and reinforcement cage;Casing top is equipped with leveling assembly, and leveling assembly is fixed with positioning mechanism on the flange, and the inside of reinforcement cage is equipped with guide piece;Leveling assembly includes floating box and multiple first water-collecting box and multiple second water-collecting box placed in floating box;Multiple first water-collecting box and multiple second water-collecting box are staggered distribution and the side opposite is cambered surface;Positioning mechanism includes the support base fixed with floating box, the cross partition rod fixed in support base inside, and the guide rod fixed in the center point of cross partition rod.The utility model makes guide rod slide down along the inner wall of sliding sleeve fixed on the top stiffening ring of reinforcement cage, can realize the automatic center alignment of reinforcement cage, to be able to accurately position the lowering position of reinforcement cage.

Description

Technical Field

[0001] This utility model relates to the field of bridge pile foundation auxiliary positioning technology, specifically to a pile foundation auxiliary positioning component for bridge construction in soft soil or swampy areas. Background Technology

[0002] The core function of pile foundations is to transfer the building load to a deep, stable soil layer, control settlement, and enhance structural stability. Pile foundations have been increasingly widely used in housing construction, bridges and wharves, tower structures, and offshore oil platforms. A pile foundation is a deep foundation consisting of piles and a pile cap connecting the top of the piles, or a single pile foundation consisting of a column and a pile foundation.

[0003] When constructing bridge pile foundations in swampy or soft soil areas, a series of technical challenges arise due to the low geological bearing capacity and high soil fluidity. For example, the deep installation of the reinforcing cage makes it prone to eccentricity or tilting during construction, severely impacting the bearing capacity of the pile foundation and the safety of the bridge structure. Furthermore, the lack of effective spatial orientation control during the lowering of the reinforcing cage makes it difficult to precisely control its position and orientation, hindering accurate placement. Additionally, existing construction techniques lack reliable components to achieve center alignment and limiting control of the reinforcing cage, resulting in significant deviations in its position within the borehole, failing to meet design and specification requirements.

[0004] Currently, conventional solutions to the above problems have limitations and cannot meet the high precision and high quality requirements of bridge pile foundation construction in swamp or soft soil areas. Based on this, an auxiliary positioning component for pile foundations in bridge construction in soft soil or swamp areas is proposed to solve the above problems. Utility Model Content

[0005] Based on the above description, this utility model provides a pile foundation auxiliary positioning component for bridge construction in soft soil or swampy areas, in order to solve the problem that the steel cage is installed at a large depth and is prone to eccentricity or tilting during construction.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: it includes a casing and a reinforcing cage;

[0007] The top of the casing is equipped with a leveling component, and a positioning mechanism is fixed to the leveling component via a flange. The inner side of the steel cage is equipped with a guide, and both the left and right sides of the steel cage are equipped with limiting mechanisms for limiting the posture of the steel cage.

[0008] The leveling assembly includes a floating tank and multiple first water collection boxes and multiple second water collection boxes placed inside the floating tank;

[0009] Multiple first water collection boxes and multiple second water collection boxes are staggered and their opposite sides are curved.

[0010] The positioning mechanism includes a support base fixed to the floating box, a cross-shaped dividing rod fixed inside the support base, and a guide rod fixed at the center point of the cross-shaped dividing rod;

[0011] The support base is a hollow frame;

[0012] The guide component includes a sliding sleeve fixed to the stiffening ring at the top of the reinforcing cage.

[0013] The above technical solution enables the guide rod to slide downwards and the sliding sleeve on the clamping ring at the top of the rebar cage to move downwards, thereby moving the sliding sleeve and the stiffening ring to ensure that the center of the rebar cage is aligned and to accurately position the rebar cage for lowering.

[0014] Based on the above technical solution, the present invention can be further improved as follows.

[0015] Furthermore, the outer side of the guide rod is provided with several evenly distributed rotating beads, and the guide rod and the sliding sleeve are in sliding fit.

[0016] Through the above technical solution, the rotating bead can reduce the sliding friction between the guide rod and the sleeve, improve the smoothness of movement, ensure that the guide rod moves linearly along the axis of the sliding sleeve, and avoid jamming or deflection.

[0017] Furthermore, the bottom of the guide rod is tilted towards the side closer to the axis.

[0018] The above technical solution guides the bottom of the guide rod to smoothly enter the sliding sleeve, avoiding collisions.

[0019] Furthermore, the upper surface of the floating box is provided with mounting holes, and multiple water guide pipes are connected to the upper surface of the floating box. A control valve is fixed at the other end of the water guide pipes, and the multiple water guide pipes are respectively connected to the inner cavity of the corresponding first water collection box and multiple second water collection boxes.

[0020] By introducing water into multiple first and second water collection boxes, pressure can be applied to the ground at the casing location to prevent soil movement and ensure the stability of the casing in swamps or soft soil areas.

[0021] Furthermore, the limiting mechanism includes limiting members that are disposed on the left and right sides of the reinforcing cage and can move up and down. The limiting member is provided with a telescopic member on the side near the casing, and the telescopic member is provided with a rolling member that abuts against the inner wall of the casing on the side near the casing.

[0022] The above technical solution can control the lowering posture of the reinforcing cage, avoid deviation in the center of the reinforcing cage, and ensure the accuracy of the pile foundation during construction.

[0023] Furthermore, the limiting component is a clamp, which is located on the outside of the vertical reinforcement bars of the steel cage.

[0024] Through the above technical solution, the clamp can be easily adjusted to adjust the position of the external screw to meet the requirements of the limiting force.

[0025] Furthermore, the telescopic component includes two external screws fixed on opposite sides of the left and right clamps, and two rotating sleeves threaded to the outer sides of the two external screws.

[0026] Through the above technical solution, the threaded engagement between the external screw and the rotating sleeve allows for adjustment of the horizontal position of the rotating sleeve, ensuring that the balls abut against the inner wall of the sleeve.

[0027] Furthermore, the rolling element includes a ball rotatably connected to the side of the rotating sleeve away from the outer screw, and the ball abuts against the inner wall of the sleeve.

[0028] Through the above technical solution, the ball bearings on the left and right sides roll on the inner wall of the casing, improving the verticality of the steel cage when it is lowered.

[0029] Furthermore, the floating tank includes multiple tank units, which are fixed together by bolts, and the side of each tank unit facing the flange is fixed to the flange.

[0030] The above technical solution involves splicing multiple box units together to form floating boxes of different areas, so as to adapt to different construction needs based on the soil around the casing.

[0031] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0032] 1. The guide rod slides down along the inner wall of the sliding sleeve fixed on the top stiffening ring of the rebar cage, which can realize the automatic center alignment of the rebar cage. This allows for accurate positioning of the rebar cage during lowering. The limiting mechanism can control the lowering posture of the rebar cage, avoid deviation of the center of the rebar cage, and ensure the accuracy of the pile foundation during construction.

[0033] 2. Multiple first and second water collection boxes are set up in the floating box, and an appropriate amount of water is added. This can be used to apply pressure to the swamp or soft soil surface around the casing. Alternatively, multiple box units can be spliced ​​together to increase or decrease the size of the floating box according to the needs of construction, so as to ensure the stability of the casing in swamp or soft soil areas. Attached Figure Description

[0034] Figure 1 A schematic diagram of the overall structure of a pile foundation auxiliary positioning component for bridge construction in soft soil or swampy areas, provided for an embodiment of this utility model;

[0035] Figure 2 This is a top view of the leveling component according to an embodiment of the present invention;

[0036] Figure 3 This is a top view schematic diagram of the positioning mechanism in an embodiment of the present utility model;

[0037] Figure 4 This is a schematic diagram of the guide rod structure according to an embodiment of the present utility model;

[0038] Figure 5 This is a top view of the sliding sleeve according to an embodiment of the present invention;

[0039] Figure 6 This is a top view of the limiting mechanism according to an embodiment of the present utility model;

[0040] Figure 7 This is a top view of the box unit in an embodiment of the present invention.

[0041] Attached reference numerals: 1. Casing; 2. Reinforcing cage;

[0042] 3. Positioning mechanism; 31. Support base; 32. Cross divider; 33. Guide rod;

[0043] 4. Limiting mechanism; 41. Clamp; 42. External screw; 43. Rotating sleeve; 44. Ball bearing;

[0044] 5. Sliding sleeve;

[0045] 6. Leveling assembly; 61. Floating tank; 62. First water collection box; 63. Second water collection box; 64. Box unit. Detailed Implementation

[0046] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0048] Example: Reference Figure 1A pile foundation auxiliary positioning component for bridge construction in soft soil or swamp areas includes a casing 1 and a reinforcing cage 2; the top of the casing 1 is provided with a leveling component 6, and a positioning mechanism 3 is fixed on the leveling component 6 by a flange; the inner side of the reinforcing cage 2 is provided with a guide, and the left and right sides of the reinforcing cage 2 are provided with a limiting mechanism 4 for limiting the posture of the reinforcing cage 2.

[0049] refer to Figure 2 The leveling component 6 includes a floating box 61 and a plurality of first water collection boxes 62 and a plurality of second water collection boxes 63 placed inside the floating box 61; the plurality of first water collection boxes 62 and the plurality of second water collection boxes 63 are staggered and their opposite sides are curved surfaces.

[0050] The upper surface of the floating box 61 is provided with mounting holes, and multiple water guide pipes are connected to the upper surface of the floating box 61. A control valve is fixed at the other end of the water guide pipes, and the multiple water guide pipes are respectively connected to the inner cavity of the corresponding first water collection box 62 and multiple second water collection boxes 63.

[0051] refer to Figure 7 The floating box 61 includes multiple box units 64, which are fixed together by bolts. The side of each box unit 64 facing the flange is fixed to the flange. Multiple box units 64 can be spliced ​​together to form floating boxes 61 of different sizes to adapt to the construction needs of the soil around the casing 1.

[0052] During use, depending on different construction needs, multiple first water collection boxes 62 and multiple second water collection boxes 63 are placed alternately or multiple box units 64 are spliced ​​together to improve the stability of the casing 1. Multiple first water collection boxes 62 and multiple second water collection boxes 63 are placed alternately or multiple box units 64 are placed in the inner cavity of the floating box 61, and water pipes are connected to the corresponding water guide pipes of multiple first water collection boxes 62 and multiple second water collection boxes 63 or multiple box units 64. The control valve is opened to allow external water to flow into multiple first water collection boxes 62 and multiple second water collection boxes 63 or multiple box units 64, thereby applying pressure to the ground at the casing 1, thus ensuring the stability of the casing 1 in swamp or soft soil areas.

[0053] refer to Figure 3 and Figure 4 The positioning mechanism 3 includes a support base 31 fixed to the floating box 61, a cross-shaped dividing rod 32 fixed inside the support base 31, and a guide rod 33 fixed at the center point of the cross-shaped dividing rod 32; the support base 31 is a hollow frame.

[0054] The guide rod 33 has several evenly distributed rotating beads on its outer side. The guide rod 33 and the sliding sleeve 5 are slidably engaged, which can convert the sliding friction between the guide rod 33 and the sliding sleeve 5 into rolling friction, thereby reducing wear. The bottom of the guide rod 33 is inclined to the side closer to the axis, so that the guide rod 33 can smoothly enter the sliding sleeve 5 and avoid impact.

[0055] In use, the steel cage 2 is slowly lowered into the casing 1 using a lifting device. The floating box 61 is placed on the upper side of the casing 1, and the positioning mechanism 3 is inserted into the inner side of the casing 1 and fixed to the floating box 61 by the flange. At this time, as the support base 31 moves downward, it drives the cross dividing rod 32 and the guide rod 33 to move downward, so that the guide rod 33 slides down along the inner wall of the sliding sleeve 5 fixed on the top stiffening ring of the steel cage 2, thereby realizing the automatic center alignment of the steel cage 2 and accurately positioning the lowering position of the steel cage 2.

[0056] refer to Figure 5 The guide component includes a sliding sleeve 5 fixed on the stiffening ring at the top of the reinforcing cage 2, which can be used to align the center of the reinforcing cage 2 through the cooperation between the guide rod 33 and the sliding sleeve 5.

[0057] refer to Figure 6 The limiting mechanism 4 includes limiting members that are set on the left and right sides of the steel cage 2 and can move up and down. The limiting member is provided with a telescopic member on the side near the casing 1, and the telescopic member is provided with a rolling member that abuts against the inner wall of the casing 1 on the side near the casing 1.

[0058] The limiting component is a clamp 41, which is located on the outside of the vertical bar of the steel cage 2; the telescopic component includes two external screws 42 fixed on opposite sides of the clamps 41 on the left and right sides, and two rotating sleeves 43 threaded to the outside of the two external screws 42; the rolling component includes a ball 44 rotatably connected to the side of the rotating sleeve 43 away from the external screws 42, and the ball 44 abuts against the inner wall of the sleeve 1.

[0059] During use, as the steel cage 2 moves downward, the limiting mechanism 4 set on its left and right vertical bars will move downward accordingly, which can limit the posture of the steel cage 2 and improve its verticality and positioning accuracy. The clamp 41 can adjust the position of the outer screw 42 up and down along the vertical bar of the steel cage 2. By rotating the sleeve 43 and moving it on the outer surface of the outer screw 42 towards the inner wall of the casing 1, the ball 44 is ensured to abut against the inner wall of the casing 1, thereby suppressing the swing and eccentricity of the steel cage 2 again and improving the verticality and positioning accuracy of the steel cage 2.

[0060] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pile foundation auxiliary positioning component for bridge construction in soft soil or swampy areas, comprising a casing (1) and a reinforcing cage (2); Its features are, The top of the casing (1) is provided with a leveling component (6), and a positioning mechanism (3) is fixed on the leveling component (6) by a flange. The inner side of the steel cage (2) is provided with a guide, and the left and right sides of the steel cage (2) are provided with a limiting mechanism (4) for limiting the posture of the steel cage (2). The leveling assembly (6) includes a floating box (61) and a plurality of first water collection boxes (62) and a plurality of second water collection boxes (63) placed inside the floating box (61); Multiple first water collection boxes (62) and multiple second water collection boxes (63) are staggered and their opposite sides are curved. The positioning mechanism (3) includes a support base (31) fixed to the floating box (61), a cross-shaped dividing rod (32) fixed inside the support base (31), and a guide rod (33) fixed at the center point of the cross-shaped dividing rod (32); The support base (31) is a hollow frame; The guide includes a sliding sleeve (5) fixed to the stiffening ring at the top of the reinforcing cage (2).

2. The auxiliary positioning component for bridge construction in soft soil or swampy areas according to claim 1, characterized in that, The outer side of the guide rod (33) is provided with several evenly distributed rotating beads, and the guide rod (33) and the sliding sleeve (5) are in sliding fit.

3. The auxiliary positioning component for bridge construction in soft soil or swampy areas according to claim 2, characterized in that, The bottom of the guide rod (33) is tilted towards the side closer to the axis.

4. The auxiliary positioning component for bridge construction in soft soil or swampy areas according to claim 1, characterized in that, The upper surface of the floating box (61) is provided with mounting holes, and multiple water guide pipes are connected to the upper surface of the floating box (61). A control valve is fixed at the other end of the water guide pipes, and the multiple water guide pipes are respectively connected to the inner cavity of the corresponding first water collection box (62) and multiple second water collection boxes (63).

5. The auxiliary positioning component for bridge construction in soft soil or swampy areas according to claim 1, characterized in that, The limiting mechanism (4) includes limiting members that are set on the left and right sides of the steel cage (2) and can move up and down. The limiting member is provided with a telescopic member on the side near the casing, and the telescopic member is provided with a rolling member that abuts against the inner wall of the casing on the side near the casing.

6. The auxiliary positioning component for bridge construction in soft soil or swampy areas according to claim 5, characterized in that, The limiting component is a clamp (41), which is located on the outside of the vertical bars of the steel cage (2).

7. The auxiliary positioning component for bridge construction in soft soil or swampy areas according to claim 6, characterized in that, The telescopic component includes two external screws (42) fixed on opposite sides of the left and right clamps (41), and two rotating sleeves (43) threaded to the outer sides of the two external screws (42).

8. The auxiliary positioning component for bridge construction in soft soil or swampy areas according to claim 7, characterized in that, The rolling element includes a ball (44) rotatably connected to the side of the rotating sleeve (43) away from the outer screw (42), and the ball (44) abuts against the inner wall of the sleeve (1).

9. The auxiliary positioning component for bridge construction in soft soil or swampy areas according to claim 1, characterized in that, The floating box (61) includes multiple box units (64), which are fixed together by bolts, and the side of each box unit (64) facing the flange is fixed to the flange.

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