Pile foundation sediment control device

Abstract

The invention discloses a pile foundation sediment control device, and belongs to the technical field of pile foundation construction devices of buildings. The device comprises an annular sheath, one end of the annular sheath sleeves the peripheral side of the bottom of a reinforcement cage inserted into the hole pile; a cantilever-shaped limiting plate is mounted on the end surface of the inner side of the annular sheath; a hollow functional support table is detachably mounted on the limiting plate; a plurality of water outlet nozzles are arranged on the side end face, facing the axis of the annular sheath, of the functional supporting table, and a movable water pipe made of rigid materials is further arranged on the functional supporting table. The lower end of the movable water pipe is communicated with the water outlet nozzle through an inner cavity of the functional support table and extends upwards along the axis of the annular sheath; the length of the movable water pipe is greater than the depth of the hole pile; the top of the movable water pipe is connected with a water pump through an adapter; the problems that the cleaning effect is poor and the hole wall is prone to being damaged due to the fact that a conventional cleaning means is adopted for the sediment in the hole pile at present are effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of pile foundation construction devices for buildings, and in particular to a pile foundation sediment control device. Background Art

[0002] In construction projects, when setting pile foundations, most of the construction methods are to install steel cages after bored piles are used and then pour the concrete. In this construction method, mud walls are generally set for bored piles. However, due to the effect of the mud in the hole, it is easy to settle at the bottom of the hole. If these deposited mud sediments are not effectively cleaned, it is easy to cause sediments at the bottom of the piles after pouring the bored pile concrete, affecting the supporting stability of the entire pile foundation. Therefore, it is necessary to clean the sediments of the bored piles. At present, when cleaning the sediments, most of them are sucked by a negative pressure pump and a mud suction pipe before placing the steel cage. However, this operation mode has poor effect and it is difficult to fully and effectively control the sediment problem at the bottom of the piles. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a pile foundation sediment control device to solve the problem that the conventional cleaning means currently used for sediment in pile holes have low working efficiency and are easy to damage the hole wall.

[0004] To solve the above problems, the present invention provides the following technical solutions: A pile foundation sediment control device; it comprises an annular sleeve; one end of the annular sleeve is sleeved on the outer peripheral side of the bottom of a steel cage for inserting into a bored pile; a cantilevered limit plate is installed on the inner end surface of the annular sleeve; a hollow functional support is detachably installed on the limit plate; a plurality of water outlet nozzles are arranged on the side end surface of the functional support facing the axis of the annular sleeve, and a movable water pipe made of rigid material is also arranged on the functional support; the lower end of the movable water pipe is communicated with the water outlet nozzle through the inner cavity of the functional support, and extends upward along the axis of the annular sleeve; the length of the movable water pipe is greater than the depth of the bored pile; and the top of the movable water pipe is connected to a water pump through a switching pipe.

[0005] Preferably, the limit plates are arranged in groups, and each group of limit plates includes an upper limit plate and a lower limit plate; the tail ends of the upper limit plate and the lower limit plate are fixedly connected to the inner wall of the annular sleeve, and the two are arranged parallel to each other; a positioning hole is opened at the protruding end of the limit plate; a limit pin is detachably installed at the positioning hole; and a rope is also provided on the limit pin, which can pull the limit pin out of the limit plate.

[0006] Preferably, the functional support platform is formed by splicing a number of unit platforms, each unit platform is independent of each other, and each unit platform is provided with a water outlet nozzle and a movable water pipe; the unit platform is an arc-shaped block structure, and the inner cavity of the block structure is hollow.

[0007] Two adjacent unit platforms on the functional support platform are mutually clamped by tenons and tenons respectively arranged at the end positions; through holes are also opened on the tenons and tenons at positions corresponding to the limit plates, and the limit pins are arranged through the through holes.

[0008] Furthermore, the number of groups of the limiting plates does not exceed the number of the functional supports.

[0009] Preferably, one end of the water outlet nozzle is connected to the inner cavity of the functional support through a corrugated hose; and an adjustment bracket for adjusting the angle of the water outlet nozzle relative to the horizontal plane is provided at the position corresponding to each movable water pipe on the functional support.

[0010] Preferably, the adjustment bracket includes a vertical plate; the rear side of the vertical plate is connected to the inner end surface of the functional support, and the vertical plate is arranged near a water outlet nozzle; a positioning block and a slider are arranged on the vertical plate; a threaded hole is opened on the positioning block; a screw is movably installed at the threaded hole; one end of the screw is rotatably connected to the slider, and the screw can drive the slider to move on the vertical plate; a rope rack is also arranged on the slider; a pull rope is arranged on the rope rack; the other end of the pull rope is connected to a movable rod; one end side of the movable rod is connected to the water outlet nozzle.

[0011] Furthermore, the positioning block and the slider are both arranged on the end surface of the vertical plate facing away from the water outlet nozzle; the positioning block is arranged at the upper position of the front side of the vertical plate, and the slider is arranged on the rear side of the vertical plate; the height of the positioning block is smaller than the height of the slider; the rope rack is arranged at the lower part of the slider; the middle part of the movable rod can be rotatably passed through the vertical plate.

[0012] Preferably, the movable water pipe is an integrated water and electricity pipe; the water outlet nozzle is a nozzle structure with an electric control valve, and the electric control valve in the water outlet nozzle is powered by an external power supply through wires arranged in the movable water pipe.

[0013] The present invention also provides a method for using the pile foundation sediment control device, which comprises the following steps: S1. Fix the annular sheath to the lower end of the steel cage, and avoid interference between the limit plate and the axial steel bars during installation; S2. Place each unit platform on the functional support platform between the upper limit plate and the lower limit plate. After placement, assemble and splice the unit platforms, and clamp the functional support platform and the limit plate through the limit pin; at this time, the movable water pipe is located on the inner side of the steel cage; S3. By rotating the screw on the adjustment bracket, the screw drives the slider to move, so that the slider can be moved closer to or away from the positioning block; so that the pull rope provides tangential traction to the movable rod, thereby adjusting the angle of the water outlet nozzle relative to the horizontal plane; S4, putting the entire steel cage and the structure connected to the steel cage into the pile hole until the bottom of the steel cage is close to the bottom of the pile hole. At this time, the other end of the rope on the limit pin should be kept outside the pile hole; S5. Connect the movable water pipe to the water pump through the transfer pipe, and turn on the power of the electric control valve in the water outlet nozzle. Then turn on the water pump, and water can pass through the movable water pipe and the functional support, and then stir the sediment in the inner cavity of the pile through the water outlet nozzle. After the sediment is churned, it can be discharged through the conventional mud suction pipe and negative pressure pump; S6. After cleaning the sediment, remove the movable water pipe and the transfer pipe, and then pull the rope on the limit pin so that the limit plate no longer limits the functional support; thereafter, move the movable water pipes on each unit platform of the functional support to separate the unit platforms; and then lift the unit platforms one by one.

[0014] Beneficial effects of the present invention: The present invention fixes an annular sleeve at the bottom end of the steel bar, uses the limiting plate on the annular sleeve to place the hollow functional support, and provides water flow to the sediment in the hole pile by arranging a movable water pipe and a water outlet nozzle on the functional support, so that the sediment can be driven to churn up from the bottom of the hole pile by the water sprayed from the water outlet nozzle, so that it is convenient to use a mud suction pipe and a negative pressure pump to extract it together with the water, thereby realizing the cleaning of the sediment. In addition, the present application also utilizes the characteristics that the functional support can be detachable relative to the limiting plate and is spliced ​​by multiple unit platforms, so that the functional supports can be quickly taken out one by one after the cleaning is completed; and in order to improve the effect of the water flow, the present application also provides an adjustment bracket to adjust the angle of each water outlet nozzle relative to the horizontal plane; thereby effectively improving the quality and efficiency of cleaning, and reducing the damage to the hole wall by conventional means. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the three-dimensional structure of the inventive device in this embodiment; Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of the device in another viewing angle; Figure 3 yes Figure 1 Only the annular sleeve and the limiting plate are left as a schematic diagram of the three-dimensional structure; Figure 4 yes Figure 1 Only the functional support, water outlet nozzle, movable water pipe, limit pin and three-dimensional structural diagram when the bracket position is adjusted remain; Figure 5 It is a schematic diagram of the three-dimensional structure of a unit platform on the functional support platform in this embodiment; Figure 6 is a schematic diagram of the three-dimensional structure of the connection position of two adjacent unit platforms on the functional support platform in this embodiment; Figure 7 is a schematic diagram of the three-dimensional structure of the adjustment support frame and the corresponding water outlet nozzle position in this embodiment; Figure 8 yes Figure 5 Left side view of the device in the middle; Fig. 9 It is a structural schematic diagram of the device of the present embodiment and the corresponding steel cage structure when placed in a pile hole; Explanation of the reference numerals: 1. annular sleeve, 2. steel cage, 3. limit plate, 31. upper limit plate, 32. lower limit plate, 4. functional support, 5. water nozzle, 6. movable water pipe, 7. limit pin, 8. corrugated hose, 9. adjustment bracket, 10. water pump, 91. vertical plate, 2. positioning block, 93. slider, 94. screw, 95. rope rack, 96. pull rope, 97. movable rod. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments: Example: Reference Figure 1 The present embodiment provides a pile foundation sediment control device; it comprises an annular sleeve 1; one end of the annular sleeve 1 is sleeved on the outer peripheral side of the bottom of the steel cage 2 for inserting into the pile hole; a cantilevered limit plate 3 is installed on the inner end surface of the annular sleeve 1; a hollow functional support 4 is detachably installed on the limit plate 3; a plurality of water outlet nozzles 5 are arranged on the side end surface of the functional support 4 facing the axis of the annular sleeve 1, and an active water pipe 6 made of rigid material is also arranged on the functional support 4; the lower end of the active water pipe 6 is communicated with the water outlet nozzle 5 through the inner cavity of the functional support 4, and extends upward along the axis of the annular sleeve 1; the length of the active water pipe 6 is greater than the depth of the pile hole; the top of the active water pipe 6 is connected to the water pump 10 through a transfer pipe; the water pump used in this embodiment is a high-pressure water pump.

[0017] The limit plates 3 are arranged in groups, and each group of limit plates 3 includes an upper limit plate 31 and a lower limit plate 32; the tail ends of the upper limit plate 31 and the lower limit plate 32 are fixedly connected to the inner wall of the annular sleeve 1, and the two are arranged parallel to each other; a positioning hole is opened at the protruding end of the limit plate 3; a limit pin 7 is detachably installed at the positioning hole; a rope is also arranged on the limit pin 7, which can pull the limit pin 7 out of the limit plate 3.

[0018] The functional support platform 4 is composed of a plurality of unit platforms, each of which is independent of each other, and each unit platform is provided with a water outlet nozzle 5 and a movable water pipe 6; the unit platform is an arc-shaped block structure, and the inner cavity of the block structure is hollow. In this embodiment, the outer diameter of each unit platform is smaller than the inner diameter of the annular sheath, so as to realize the assembly between the unit platform and the annular sheath.

[0019] Two adjacent unit platforms on the functional support platform 4 are mutually clamped by tenons and tenons respectively arranged at the end positions; through holes are also opened on the tenons and tenons at positions corresponding to the limit plates, and the limit pins 7 are arranged through the through holes.

[0020] The number of groups of the limiting plates 3 does not exceed the number of the functional supports 4. In this embodiment, the limiting plates and the functional supports are both provided with 4 groups; and the number of water outlet nozzles provided on a single unit support is 6.

[0021] One end of the water outlet nozzle 5 is connected to the inner cavity of the functional support 4 through a corrugated hose 8; an adjustment bracket 9 for adjusting the angle of the water outlet nozzle 5 relative to the horizontal plane is provided at the position corresponding to each movable water pipe 6 on the functional support 4.

[0022] The adjustment bracket 9 includes a vertical plate 91; the rear side of the vertical plate 91 is connected to the inner end surface of the functional support 4, and the vertical plate 91 is arranged near a water outlet nozzle 5; a positioning block 92 and a slider 93 are arranged on the vertical plate 91; a threaded hole is opened on the positioning block 92; a screw rod 94 is movably installed at the threaded hole; one end of the screw rod 94 is rotatably connected to the slider 93, and the screw rod 94 can drive the slider 93 to move on the vertical plate 91; a rope rack 95 is also arranged on the slider 93; a pull rope 96 is arranged on the rope rack 95; the other end of the pull rope 96 is connected to a movable rod 97; one end side of the movable rod 97 is connected to the water outlet nozzle 5. The rope rack in this embodiment is a U-shaped buckle-shaped structure, and its two end sides are connected to the vertical plate.

[0023] The positioning block 92 and the slider 93 are both arranged on the end surface of the vertical plate 91 facing away from the water outlet nozzle 5; the positioning block 92 is arranged at the upper position of the front side of the vertical plate 91, and the slider 93 is arranged on the rear side of the vertical plate 91; the height of the positioning block 92 is smaller than the height of the slider 93; the rope rack 95 is arranged at the lower part of the slider 93; the middle part of the movable rod 97 is rotatably arranged to pass through the vertical plate 91.

[0024] The movable water pipe 6 is a water-electricity integrated pipe; the water outlet nozzle 5 is a nozzle structure with an electric control valve, and the electric control valve in the water outlet nozzle 5 is powered by an external power supply through the wires arranged in the movable water pipe 6.

[0025] When using the device of the present embodiment, the following steps may be referred to for processing.

[0026] S1. Fix the annular sheath 1 to the lower end of the steel cage 2, and avoid interference between the limit plate 3 and the axial steel bars during installation; S2, each unit platform on the functional support platform 4 is placed between the upper limit plate 31 and the lower limit plate 32, and after the placement is completed, the unit platforms are assembled and spliced, and the functional support platform 4 and the limit plate are clamped together by the limit pin; at this time, the movable water pipe 6 is located on the inner side of the steel cage 2; S3. By rotating the screw 94 on the adjustment bracket 9, the screw 94 drives the slider 93 to move, so that the slider 93 can be moved closer to or away from the positioning block 94; so that the pull rope 96 provides a tangential traction force to the movable rod 97, thereby adjusting the angle of the water outlet nozzle 5 relative to the horizontal plane; at this time, it is necessary to ensure that at least two water outlet nozzles 5 on each unit platform are oriented obliquely downward, and the obliquely downward water outlet nozzles can assist the device and the steel cage in sinking and installation; S4, putting the entire steel cage 2 and the structure connected to the steel cage 2 into the pile hole until the bottom of the steel cage is close to the bottom of the pile hole, at this time, the other end of the rope on the limit pin needs to be kept outside the pile hole; S5, connect the movable water pipe 6 to the water pump through the adapter pipe, and turn on the power of the electric control valve in the water outlet nozzle 5, then turn on the water pump, water can pass through the movable water pipe 6 and the functional support 4, and then through the water outlet nozzle 5 to stir the sediment in the inner cavity of the pile hole, so that the sediment can be discharged through the conventional mud suction pipe and the negative pressure pump after churning; S6. After cleaning the sediment, remove the movable water pipe 6 and the transfer pipe, and then pull the rope on the limit pin 7 so that the limit plate no longer limits the functional support; thereafter, the movable water pipes on each unit platform of the functional support are moved to separate the unit platforms; and then the unit platforms can be lifted one by one.

Claims

1. A pile foundation sediment control device, characterized in that: The utility model comprises an annular sleeve (1); the annular sleeve (1) is sleeved on the outer peripheral side of the bottom of a steel cage (2) for inserting into a bored pile; a cantilevered limiting plate (3) is installed on the inner end surface of the annular sleeve (1); a hollow functional support (4) is detachably installed on the limiting plate (3); a plurality of water outlet nozzles (5) are arranged on the side end surface of the functional support (4) facing the axis of the annular sleeve (1), and a movable water pipe (6) made of a rigid material is also arranged on the functional support (4); the lower end of the movable water pipe (6) is connected to the water outlet nozzle (5) through the inner cavity of the functional support (4) and extends upward along the axis of the annular sleeve (1); the length of the movable water pipe (6) is greater than the depth of the bored pile; and the top of the movable water pipe (6) is connected to a water pump through a transfer pipe.

2. A pile foundation sediment control device according to claim 1, characterized in that: The limit plates (3) are arranged in groups, and each group of limit plates (3) comprises an upper limit plate (31) and a lower limit plate (32); the tail ends of the upper limit plate (31) and the lower limit plate (32) are fixedly connected to the inner wall of the annular sleeve (1), and the two are arranged parallel to each other; a positioning hole is opened at the protruding end of the limit plate (3); a limit pin (7) is detachably installed at the positioning hole; and a steel wire rope is also arranged on the limit pin (7) to be able to pull the limit pin (7) out of the limit plate (3).

3. A pile foundation sediment control device according to claim 1, characterized in that: The functional support platform (4) is formed by splicing a plurality of unit platforms, each of which is independent of one another, and each unit platform is provided with a water outlet nozzle (5) and a movable water pipe (6); the unit platform is an arc-shaped block structure, and the inner cavity of the block structure is hollow.

4. A pile foundation sediment control device according to claim 3, characterized in that: Two adjacent unit platforms on the functional support platform (4) are mutually clamped by tenons and tenons respectively arranged at the end positions; through holes are also opened on the tenons and tenons at positions corresponding to the limit plate, and the limit pin (7) is arranged through the through holes.

5. A pile foundation sediment control device according to claim 1, characterized in that: The number of groups of the limiting plates (3) does not exceed the number of the functional supports (4).

6. A pile foundation sediment control device according to claim 1, characterized in that: One end of the water outlet nozzle (5) is connected to the inner cavity of the functional support platform (4) through a corrugated hose (8); and an adjustment bracket (9) for adjusting the angle of the water outlet nozzle (5) relative to the horizontal plane is provided at a position corresponding to each movable water pipe (6) on the functional support platform (4).

7. A pile foundation sediment control device according to claim 1, characterized in that: The adjustment bracket (9) comprises a vertical plate (91); the rear side of the vertical plate (91) is connected to the inner end surface of the functional support (4), and the vertical plate (91) is arranged near a water outlet nozzle (5); a positioning block (92) and a sliding block (93) are arranged on the vertical plate (91); a threaded hole is formed on the positioning block (92); a screw rod (94) is movably mounted at the threaded hole; one end of the screw rod (94) is rotatably connected to the sliding block (93), and the screw rod (94) can drive the sliding block (93) to move on the vertical plate (91); a rope rack (95) is also arranged on the sliding block (93); a pull rope (96) is arranged on the rope rack (95); the other end of the pull rope (96) is connected to a movable rod (97); one end side of the movable rod (97) is connected to the water outlet nozzle (5).

8. A pile foundation sediment control device according to claim 7, characterized in that: The positioning block (92) and the sliding block (93) are both arranged on the end surface of the vertical plate (91) facing away from the water outlet nozzle (5); the positioning block (92) is arranged at the upper position of the front side of the vertical plate (91), and the sliding block (93) is arranged at the rear side of the vertical plate (91); the height of the positioning block (92) is smaller than the height of the sliding block (93); the rope holder (95) is arranged at the lower part of the sliding block (93); and the middle part of the movable rod (97) is rotatably arranged to pass through the vertical plate (91).

9. A pile foundation sediment control device according to claim 1, characterized in that: The movable water pipe (6) is a water-electricity integrated pipe; the water outlet nozzle (5) is a nozzle structure with an electric control valve, and the electric control valve in the water outlet nozzle (5) is powered by an external power supply through an electric wire arranged in the movable water pipe (6).

10. A method for using a pile foundation sediment control device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Fix the annular sleeve (1) to the lower end of the steel cage (2), and avoid interference between the limit plate (3) and the axial steel bars during installation; S2, placing each unit platform on the functional support platform (4) between the upper limit plate (31) and the lower limit plate (32), assembling and splicing the unit platforms after the placement, and clamping the functional support platform (4) and the limit plate through the limit pin; at this time, the movable water pipe (6) is located on the inner side of the steel cage (2); S3. By rotating the screw rod (94) on the adjustment bracket (9), the screw rod (94) drives the slider (93) to move, so that the slider (93) can be moved closer to or farther from the positioning block (94); thereby, the pull rope (96) provides a tangential traction force to the movable rod (97), thereby adjusting the angle of the water outlet nozzle (5) relative to the horizontal plane; S4, placing the entire steel cage (2) and the structure connected to the steel cage (2) into the pile hole until the bottom of the steel cage is close to the bottom of the pile hole, at which time the other end of the rope on the limit pin needs to be left outside the pile hole; S5, connect the movable water pipe (6) to the water pump through the adapter pipe, and connect the power supply of the electric control valve in the water outlet nozzle (5), then turn on the water pump, and water can pass through the movable water pipe (6) and the functional support (4), and then through the water outlet nozzle (5) to stir the sediment in the inner cavity of the pile hole, so that the sediment can be discharged through the conventional mud suction pipe and the negative pressure pump after churning; S6. After cleaning the sediment, remove the movable water pipe (6) and the transfer pipe, and then pull the rope on the limit pin (7) so that the limit plate no longer limits the functional support; thereafter, the movable water pipes on each unit platform of the functional support are moved to separate the unit platforms; and then the unit platforms are lifted one by one.

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