CN115198812A - Precise positioning device for cage core bag anti-floating anchor rod of deep foundation pit and construction method - Google Patents
Precise positioning device for cage core bag anti-floating anchor rod of deep foundation pit and construction method Download PDFInfo
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- CN115198812A CN115198812A CN202210942400.9A CN202210942400A CN115198812A CN 115198812 A CN115198812 A CN 115198812A CN 202210942400 A CN202210942400 A CN 202210942400A CN 115198812 A CN115198812 A CN 115198812A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/10—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure
- E02D31/12—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure against upward hydraulic pressure
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
Abstract
The invention relates to the technical field of anti-floating anchor rod construction, and discloses a precise positioning device for a deep foundation pit cage core bag anti-floating anchor rod, which comprises a bearing plate detachably arranged on a moving vehicle, wherein three groups of positioning mechanisms are uniformly arranged on the bearing plate along the vertical direction, each positioning mechanism comprises a first connecting plate and a second connecting plate which can move in opposite directions and move in opposite directions, and one ends of the first connecting plate and the second connecting plate, which are back to the bearing plate, are fixedly connected with an intermediate plate; when first connecting plate and second connecting plate are close to each other, can clip the slip casting pipe through two first jackets, when two intermediate lamella are close to each other, can clip the reinforcing bar through two position sleeves, when two tailboards are close to each other, press from both sides the cover through two seconds and can clip the blast pipe, thereby, through the centre gripping location to slip casting pipe, reinforcing bar and blast pipe, can restrict the removal of stock, make the stock more stable when subsiding downwards toward the anchor eye, can not take place the horizontal tilt.
Description
Technical Field
The invention relates to the technical field of anti-floating anchor rod construction, in particular to a precise positioning device for a deep foundation pit cage core bag anti-floating anchor rod and a construction method.
Background
With the rapid development of society and economy, urban land tends to be tense gradually, and in order to meet the requirements of larger residences, offices and the like, floors of buildings are continuously increased, and underground buildings are continuously deepened. Along with the continuous deepening of underground buildings, the anti-floating problem of the basement is brought.
The cage core bag anti-floating anchor rod is a novel anchor rod and has a good anti-floating effect. However, in the actual construction of the anti-floating anchor rod, we find that there still exist certain disadvantages, such as:
in the prior art, when an anti-floating anchor rod is inserted into an anchor hole, the rod body of the anchor rod often deflects and is not centered, and the bearing capacity of a building is directly influenced if the verticality deviation of the anchor rod is overlarge;
therefore, how to keep the position accuracy of the anti-floating anchor rod in the construction process is a technical problem which needs to be solved urgently.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the precise positioning device and the construction method for the anti-floating anchor rod of the cage core bag of the deep foundation pit, and the precise positioning device has the advantage of being capable of precisely positioning the anti-floating anchor rod.
(II) technical scheme
In order to achieve the purpose of accurately positioning the anti-floating anchor rod, the invention provides the following technical scheme: the accurate positioning device for the anti-floating anchor rod of the cage core bag of the deep foundation pit comprises a bearing plate which is detachably mounted on a moving vehicle, wherein three groups of positioning mechanisms are uniformly arranged on the bearing plate along the vertical direction, each positioning mechanism comprises a first connecting plate and a second connecting plate which can move in opposite directions and move in opposite directions, and one ends of the first connecting plate and the second connecting plate, which are opposite to the bearing plate, are fixedly connected with an intermediate plate;
two one side that the intermediate lamella is relative all is provided with the position sleeve, one side fixed mounting of position sleeve towards the intermediate lamella has four inserted bars, four the inserted bar is all movable to be inserted and is established on the intermediate lamella, and still overlaps on the inserted bar and be equipped with the spring, the spring is fixed to be set up between position sleeve and intermediate lamella.
As a preferred technical scheme of the invention, a screw is rotatably arranged in the bearing plate, the left side and the right side of the outer wall of the screw are respectively provided with a first thread and a second thread with opposite rotation directions, the outer walls of the first thread and the second thread are respectively in threaded connection with a first sliding plate and a second sliding plate, and a first connecting plate and a second connecting plate are respectively and fixedly arranged on the first sliding plate and the second sliding plate;
and plate grooves corresponding to the first connecting plate and the second connecting plate are also formed in the outer wall of the bearing plate.
As a preferable technical scheme of the invention, one end of the screw rod is rotatably arranged on the inner wall of the bearing plate, the other end of the screw rod extends to the outside of the bearing plate and is fixedly connected with an output shaft of a driving motor, and the driving motor is fixedly arranged on the bearing plate.
As a preferable technical scheme, positioning grooves are formed in the opposite sides of the two positioning sleeves, and arc-shaped surfaces are formed at the edges of the tops and the bottoms of the positioning grooves.
As a preferred technical scheme of the invention, one ends of the front and back adjacent inserted rods far away from the positioning sleeve are connected through a bent rod;
the bottom of one side of the middle plate back to the positioning sleeve is fixedly provided with a fixing plate, the bottom of the fixing plate is fixedly provided with an adjusting motor, the top of an output shaft of the adjusting motor is fixedly provided with an eccentric wheel, and the eccentric wheel is rotatably arranged in the bent rod.
As a preferred technical scheme of the present invention, a distance measuring sensor is fixedly disposed at the top of the positioning sleeve, an output end of the distance measuring sensor is electrically connected to a controller, and an output end of the controller is electrically connected to an input end of the adjusting motor.
As a preferable technical solution of the present invention, first moving blocks are slidably disposed inside the first connecting plate and the second connecting plate, and a first jacket is fixedly connected to opposite sides of the two first moving blocks through a first moving plate.
As a preferred technical scheme of the invention, the inner walls of the two first moving blocks are both in threaded connection with first lead screws, and the two first lead screws are respectively and rotatably arranged in a first connecting plate and a second connecting plate;
the first lead screw is fixedly provided with a driven wheel, the outer wall of the driven wheel is meshed with a driving wheel, the center of the driving wheel is fixedly provided with a rotating shaft, and the tail end of the rotating shaft is fixedly provided with a knob.
As a preferred technical scheme of the invention, one end of each of the two middle plates, which faces away from the bearing plate, is fixedly provided with a tail plate, a second moving block is slidably arranged in each of the two tail plates, and one side, opposite to the two second moving blocks, of each of the two second moving blocks is fixedly connected with a second jacket through a second moving plate;
the inner wall of the second moving block is in threaded connection with a second lead screw, one end of the second lead screw is rotatably arranged on the inner wall of the tail plate, and the other end of the second lead screw extends to the outside of the tail plate and is fixedly connected with a rotating column.
A construction method of a deep foundation pit cage core bag anti-floating anchor rod accurate positioning device comprises the following steps:
s1, after the anchor hole is drilled, hoisting and moving the anchor rod to the position above the anchor hole through a tower crane;
s2, moving the bearing plate to the anchor hole position through the moving vehicle, and controlling the driving motor to operate to enable the positioning sleeves, the first clamping sleeve and the second clamping sleeve of the three groups of positioning mechanisms to be opened;
s3, respectively clamping the reinforcing steel bars, the grouting pipes and the exhaust pipes of the anchor rods into the positioning sleeves, the first clamping sleeves and the second clamping sleeves, and then controlling the driving motor to reversely operate to position the reinforcing steel bars, the grouting pipes and the exhaust pipes;
s4, slowly moving the anchor rod downwards through the tower crane and gradually penetrating into the anchor hole;
and S5, after the anchor rod is settled to the preset position, controlling the driving motor to operate to open the positioning sleeves, the first clamping sleeves and the second clamping sleeves of the three groups of positioning mechanisms, releasing the positioning of the reinforcing steel bars, the grouting pipes and the exhaust pipes, and moving the movable vehicle away to complete the whole construction.
(III) advantageous effects
Compared with the prior art, the invention provides the precise positioning device for the anti-floating anchor rod of the cage core bag of the deep foundation pit, which has the following beneficial effects:
1. according to the precise positioning device for the cage core bag anti-floating anchor rod of the deep foundation pit, the driving motor operates to drive the screw rod at the top of the output shaft of the driving motor to rotate, the screw rod rotates to drive the first sliding plate and the second sliding plate to move in opposite directions through the first screw thread and the second screw thread which are opposite in rotation direction of the outer wall of the screw rod, the first sliding plate and the second sliding plate are close to or far away from each other to drive the first connecting plate and the second connecting plate to be close to or far away from each other, and the first connecting plate and the second connecting plate are close to or far away from each other to drive the two middle plates and the two tail plates to be close to or far away from each other;
when first connecting plate and second connecting plate are close to each other, can clip the slip casting pipe through two first jackets, when two intermediate lamella are close to each other, can clip the reinforcing bar through two position sleeves, when two tailboards are close to each other, press from both sides the cover through two seconds and can clip the blast pipe, thereby, through the centre gripping location to slip casting pipe, reinforcing bar and blast pipe, can restrict the removal of stock, make the stock subside more stable down in the anchor eye, can not take place the horizontal tilt.
2. This anti-anchor rod accurate positioning device that floats of deep basal pit cage core bag, two first clamp covers, two position sleeves and two second clamp covers and all is provided with three groups, can carry out accurate guide to the stock, prevents that the stock body of rod incline not placed in the middle, has guaranteed stock male precision.
3. According to the precise positioning device for the cage core bag anti-floating anchor rod of the deep foundation pit, when the reinforcing steel bars of the anchor rod are connected through the connecting frame, the two positioning sleeves can be directly pushed open through the inclination of the bottom of the connecting frame when the reinforcing steel bars descend, so that the positioning sleeves can be adaptive to the deformation of the connecting part of the reinforcing steel bars, and the locking is prevented;
when the reinforcing bars of the anchor rod are connected through the connecting piece, the distance measuring sensor detects that the connecting piece is close to the adjusting motor and controls the adjusting motor to operate, the adjusting motor drives the eccentric wheel at the top of the output shaft of the adjusting motor to rotate, the eccentric wheel rotates to push the bent rod, the bent rod moves to enable the two positioning sleeves to be separated from each other through the inserted rod, therefore, the deformation of the connecting part of the reinforcing bars can be self-adapted, and the reinforcing bars are effectively prevented from being blocked in the descending process.
Drawings
FIG. 1 is a perspective view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the overall structure of the present invention;
FIG. 3 is an enlarged schematic view of a portion of the intermediate plate of the present invention;
FIG. 4 is an enlarged schematic view of a portion of the position sleeve of the present invention;
FIG. 5 is an enlarged schematic view of the portions of the first web and the second web of the present invention;
FIG. 6 is an enlarged schematic view of the tailgate portion of the present invention;
FIG. 7 is a schematic view of a reinforcement bar according to the present invention;
fig. 8 is a schematic view of another reinforcement state of the present invention.
In the figure: 1. a carrier plate; 2. a screw; 3. a drive motor; 4. a first thread; 5. a second thread; 6. a first slide plate; 7. a second slide plate; 8. a first connecting plate; 9. a second connecting plate; 10. a plate groove; 11. a middle plate; 12. a tail plate; 13. inserting a rod; 14. a limiting plate; 15. a spring; 16. a positioning sleeve; 17. an arc-shaped surface; 18. bending a rod; 19. a fixing plate; 20. adjusting the motor; 21. an eccentric wheel; 22. a ranging sensor; 23. a first moving block; 24. a first moving plate; 25. a first jacket; 26. a first lead screw; 27. a driven wheel; 28. a driving wheel; 29. a rotating shaft; 30. a knob; 31. a second moving block; 32. a second moving plate; 33. a second jacket; 34. a second lead screw; 35. rotating the column; 36. reinforcing steel bars; 37. a pouch; 38. a grouting pipe; 39. an exhaust pipe; 40. a connecting frame; 41. a connecting member.
Detailed Description
Example (b):
referring to fig. 1 to 8, an apparatus for accurately positioning an anti-floating anchor of a cage core of a deep foundation pit includes a carrier plate 1 detachably mounted on a moving vehicle, the moving vehicle may use any vehicle in the prior art, and the connection between the carrier plate 1 and the moving vehicle may be any conventional way such as bolt connection;
three groups of positioning mechanisms are uniformly arranged on the bearing plate 1 along the vertical direction, each group of positioning mechanisms comprises a first connecting plate 8 and a second connecting plate 9 which can move in opposite directions and move in opposite directions, one ends of the first connecting plate 8 and the second connecting plate 9, which are back to the bearing plate 1, are fixedly connected with intermediate plates 11, and one ends of the two intermediate plates 11, which are back to the bearing plate 1, are fixedly provided with tail plates 12;
as shown in fig. 2, a screw 2 is rotatably arranged inside a bearing plate 1, one end of the screw 2 is rotatably arranged on the inner wall of the bearing plate 1, the other end of the screw 2 extends to the outside of the bearing plate 1 and is fixedly connected with an output shaft of a driving motor 3, the driving motor 3 is fixedly arranged on the bearing plate 1, and the driving motor 3 can directly drive the screw 2 to rotate when operating;
the left side and the right side of the outer wall of the screw rod 2 are respectively provided with a first thread 4 and a second thread 5 with opposite rotation directions, the outer walls of the first thread 4 and the second thread 5 are respectively in threaded connection with a first sliding plate 6 and a second sliding plate 7, a first connecting plate 8 and a second connecting plate 9 are respectively fixedly arranged on the first sliding plate 6 and the second sliding plate 7, and the outer wall of the bearing plate 1 is also provided with a plate groove 10 corresponding to the first connecting plate 8 and the second connecting plate 9;
the driving motor 3 operates to drive the screw rod 2 at the top of the output shaft to rotate, the screw rod 2 rotates to drive the first sliding plate 6 and the second sliding plate 7 to move in opposite directions through the first thread 4 and the second thread 5 with opposite rotating directions on the outer wall of the screw rod 2, the first sliding plate 6 and the second sliding plate 7 are close to or away from each other to drive the first connecting plate 8 and the second connecting plate 9 to be close to or away from each other, the first connecting plate 8 and the second connecting plate 9 are close to or away from each other to drive the two middle plates 11 and the two tail plates 12 to be close to or away from each other, and the 'opposite movement and opposite movement' are realized;
as shown in fig. 3, positioning sleeves 16 are disposed on opposite sides of the two middle plates 11, four insertion rods 13 are fixedly mounted on one side of the positioning sleeves 16 facing the middle plates 11, the four insertion rods 13 are movably inserted into the middle plates 11, springs 15 are further sleeved on the insertion rods 13, and the springs 15 are fixedly disposed between the positioning sleeves 16 and the middle plates 11, so that the positioning sleeves 16 can move toward the middle plates 11, and compress the springs 15 while moving, and in order to prevent the insertion rods 13 from separating from the middle plates 11, limit plates 14 can be further disposed on the insertion rods 13, as shown in fig. 4;
as shown in fig. 7 and 8, it is an anti-floating anchor rod in the prior art, which generally comprises a steel bar 36, a bladder 37, a detachable grouting pipe 38 and an exhaust pipe 39, and the connection mode between the steel bars 36 is generally welded and then connected through a connection mechanism, as shown in fig. 7, it is an anti-floating anchor rod in the prior art, which is only roughly shown in the present embodiment and not described too much, as shown in fig. 8, it is an anti-floating anchor rod in the prior art, and as shown in fig. 8, it is an anti-floating anchor rod in the prior art, and it is a detachable grouting pipe 38;
in this embodiment, the two positioning sleeves 16 (three groups in total) can clamp and position the reinforcing steel bars 36 (without clamping), so that the downward movement of the reinforcing steel bars 36 is more stable and does not skew;
when the reinforcing steel bar 36 moves downwards relative to the two positioning sleeves 16, if the connecting frame 40 is encountered, the reinforcing steel bar is clamped, so in the embodiment, positioning grooves are formed on the opposite sides of the two positioning sleeves 16, and arc-shaped surfaces 17 are formed at the edges of the tops and the bottoms of the positioning grooves, so that when the connecting frame 40 passes through the two positioning sleeves 16, the two positioning sleeves 16 can be directly pushed away through the inclined matching arc-shaped surfaces 17 at the bottom of the connecting frame 40 (at the moment, the inserted rod 13 moves relative to the middle plate 11, and the spring 15 is compressed), so that the positioning sleeves 16 can be adaptive to the deformation of the joint of the reinforcing steel bar 36 to prevent clamping;
when the reinforcing steel bars 36 of the anchor rod are connected through the connecting piece 41, the connecting piece 41 itself cannot be well utilized to push the two positioning sleeves 16 open, so in the embodiment, as shown in fig. 5, one ends of the two adjacent front and rear insertion rods 13 far away from the positioning sleeves 16 are connected through the bent rod 18, the bottom of one side of the middle plate 11, which faces away from the positioning sleeves 16, is fixedly provided with the fixing plate 19, the bottom of the fixing plate 19 is fixedly provided with the adjusting motor 20, the top of the output shaft of the adjusting motor 20 is fixedly provided with the eccentric wheel 21, and the eccentric wheel 21 is rotatably arranged in the bent rod 18;
a distance measuring sensor 22 is fixedly arranged at the top of the positioning sleeve 16, the output end of the distance measuring sensor 22 is electrically connected with a controller, and the output end of the controller is electrically connected with the input end of the adjusting motor 20;
when the reinforcing steel bars 36 of the anchor rod are connected through the connecting piece 41, the distance measuring sensor 22 detects that the connecting piece 41 is close to control the operation of the adjusting motor 20, the adjusting motor 20 operates to drive the eccentric wheel 21 at the top of the output shaft of the adjusting motor to rotate, the eccentric wheel 21 rotates to push the bent rod 18, the bent rod 18 moves to enable the two positioning sleeves 16 to be separated from each other through the inserted link 13 (at the moment, the spring 15 is compressed), so that the deformation of the connecting position of the reinforcing steel bars 36 can be self-adapted, and the reinforcing steel bars 36 are effectively prevented from being stuck in the descending process;
the three groups of positioning sleeves 16 adopt the principle, when the connecting piece 41 passes through, the two positioning sleeves 16 are automatically separated by using the eccentric wheel 21, so that the connecting piece 41 can pass through conveniently;
first moving blocks 23 are arranged inside the first connecting plate 8 and the second connecting plate 9 in a sliding mode, one sides, opposite to the two first moving blocks 23, are fixedly connected with first clamping sleeves 25 through first moving plates 24, and the grouting pipes 38 can be clamped and positioned through the two first clamping sleeves 25;
as shown in fig. 5, the inner walls of the two first moving blocks 23 are both connected with first lead screws 26 in a threaded manner, the two first lead screws 26 are respectively and rotatably arranged in the first connecting plate 8 and the second connecting plate 9, driven wheels 27 are fixedly arranged on the first lead screws 26, driving wheels 28 are meshed with the outer walls of the driven wheels 27, rotating shafts 29 are fixedly arranged at the centers of the driving wheels 28, and knobs 30 are fixedly arranged at the tail ends of the rotating shafts 29;
the knob 30 is screwed to enable the driving wheel 28 to rotate through the rotating shaft 29, the driving wheel 28 rotates to drive the driven wheel 27 meshed with the outer wall of the driving wheel to rotate, the driven wheel 27 rotates to drive the first lead screw 26 to rotate, the first lead screw 26 rotates to drive the first moving block 23 in threaded connection with the outer wall of the first lead screw to move, the first moving block 23 moves to drive the first jacket 25 to move through the first moving plate 24, the distance between the first jacket 25 and the positioning sleeve 16 is adjusted, and therefore the distance between the reinforcing steel bars 36 and the grouting pipe 38 can be self-adapted;
the two tail plates 12 are internally provided with second moving blocks 31 in a sliding manner, one sides of the two second moving blocks 31 opposite to each other are fixedly connected with second jackets 33 through second moving plates 32, and the exhaust pipe 39 can be clamped and positioned through the two second jackets 33;
as shown in fig. 6, a second lead screw 34 is connected to the inner wall of the second moving block 31 through a screw thread, one end of the second lead screw 34 is rotatably disposed on the inner wall of the tail plate 12, the other end of the second lead screw 34 extends to the outside of the tail plate 12 and is fixedly connected with a rotating column 35, the second lead screw 34 can be rotated by screwing the rotating column 35, the second lead screw 34 rotates to drive the second moving block 31 with the outer wall thereof connected through the screw thread to move, the second moving block 31 moves to drive the second jacket 33 through the second moving plate 32, and the distance between the second jacket 33 and the positioning sleeve 16 is adjusted, so that the distance between the reinforcing steel bar 36 and the exhaust pipe 39 can be self-adapted;
in this way, when the anti-floating anchor rod sinks into the anchor hole, the reinforcing steel bar 36, the grouting pipe 38 and the exhaust pipe 39 can be guided at the same time, and the accuracy of the sinking position of the anti-floating anchor rod is further ensured.
A construction method of a deep foundation pit cage core bag anti-floating anchor rod accurate positioning device comprises the following steps:
step one, after the anchor hole is drilled, moving an anchor rod above the anchor hole by a tower crane in a hanging manner;
moving the bearing plate 1 to the anchor hole position through the moving vehicle, and controlling the driving motor 3 to operate to open the positioning sleeves 16, the first clamping sleeve 25 and the second clamping sleeve 33 of the three groups of positioning mechanisms;
thirdly, the reinforcing steel bars 36, the grouting pipes 38 and the exhaust pipes 39 of the anchor rods are respectively clamped into the positioning sleeve 16, the first jacket 25 and the second jacket 33, then the driving motor 3 is controlled to run reversely, and the reinforcing steel bars 36, the grouting pipes 38 and the exhaust pipes 39 are positioned;
step four, the anchor rod is slowly moved downwards through the tower crane and gradually goes deep into the anchor hole;
and step five, after the anchor rod is settled to the preset position, controlling the driving motor 3 to operate to open the positioning sleeves 16, the first clamping sleeve 25 and the second clamping sleeve 33 of the three groups of positioning mechanisms, releasing the positioning of the reinforcing steel bars 36, the grouting pipe 38 and the exhaust pipe 39, and moving the moving vehicle away to complete the whole construction.
The working principle and the using process of the invention are as follows:
the driving motor 3 operates to drive the screw rod 2 at the top of the output shaft of the screw rod to rotate, the screw rod 2 rotates to drive the first sliding plate 6 and the second sliding plate 7 to move in opposite directions through the first thread 4 and the second thread 5 with opposite rotation directions on the outer wall of the screw rod 2, the first sliding plate 6 and the second sliding plate 7 are close to or far away from each other to drive the first connecting plate 8 and the second connecting plate 9 to be close to or far away from each other, and the first connecting plate 8 and the second connecting plate 9 are close to or far away from each other to drive the two middle plates 11 and the two tail plates 12 to be close to or far away from each other;
when the first connecting plate 8 and the second connecting plate 9 are close to each other, the grouting pipe 38 can be clamped through the two first clamping sleeves 25, when the two middle plates 11 are close to each other, the reinforcing steel bar 36 can be clamped through the two positioning sleeves 16, when the two tail plates 12 are close to each other, the exhaust pipe 39 can be clamped through the two second clamping sleeves 33, therefore, through clamping and positioning the grouting pipe 38, the reinforcing steel bar 36 and the exhaust pipe 39, the movement of the anchor rod can be limited, the anchor rod is more stable when sinking downwards into the anchor hole, and left and right inclination is avoided;
three groups of the two first clamping sleeves 25, the two positioning sleeves 16 and the two second clamping sleeves 33 are arranged, so that the anchor rod can be accurately guided, the rod body of the anchor rod is prevented from deviating and not centering, and the inserting accuracy of the anchor rod is ensured;
when the reinforcing steel bars 36 of the anchor rod are connected through the connecting frame 40, when the reinforcing steel bars 36 descend, the two positioning sleeves 16 can be directly pushed away through the inclination of the bottom of the connecting frame 40, so that the positioning sleeves 16 can be adaptive to the deformation of the connecting part of the reinforcing steel bars 36, and the locking is prevented;
when the reinforcing steel bars 36 of the anchor rod are connected through the connecting piece 41, the distance measuring sensor 22 detects that the connecting piece 41 is close to control the operation of the adjusting motor 20, the adjusting motor 20 drives the eccentric wheel 21 at the top of the output shaft of the adjusting motor to rotate, the eccentric wheel 21 rotates to push the bent rod 18, the bent rod 18 moves to enable the two positioning sleeves 16 to be separated from each other through the inserted rod 13, so that the deformation of the connection position of the reinforcing steel bars 36 can be self-adapted, and the reinforcing steel bars 36 are effectively prevented from being blocked in the descending process.
Claims (10)
1. The utility model provides a deep basal pit cage core bag anti-floating anchor rod accurate positioning device, includes bearing board (1) of demountable installation on the locomotive, its characterized in that: three groups of positioning mechanisms are uniformly arranged on the bearing plate (1) along the vertical direction, each positioning mechanism comprises a first connecting plate (8) and a second connecting plate (9) which can move in opposite directions and move in opposite directions, and one ends of the first connecting plates (8) and the second connecting plates (9) back to the bearing plate (1) are fixedly connected with an intermediate plate (11);
two one side that intermediate lamella (11) is relative all is provided with position sleeve (16), position sleeve (16) have four inserted bars (13), four towards one side fixed mounting of intermediate lamella (11) inserted bar (13) is all movable to be inserted and is established on intermediate lamella (11), and still overlaps on inserted bar (13) to be equipped with spring (15), spring (15) are fixed to be set up between position sleeve (16) and intermediate lamella (11).
2. The device for accurately positioning the anti-floating anchor rod of the cage core capsule of the deep foundation pit according to claim 1, is characterized in that: a screw rod (2) is rotatably arranged in the bearing plate (1), the left side and the right side of the outer wall of the screw rod (2) are respectively provided with a first thread (4) and a second thread (5) with opposite rotation directions, the outer walls of the first thread (4) and the second thread (5) are respectively in threaded connection with a first sliding plate (6) and a second sliding plate (7), and a first connecting plate (8) and a second connecting plate (9) are respectively fixedly arranged on the first sliding plate (6) and the second sliding plate (7);
the outer wall of the bearing plate (1) is further provided with plate grooves (10) corresponding to the first connecting plate (8) and the second connecting plate (9).
3. The device for accurately positioning the anti-floating anchor rod of the cage core capsule of the deep foundation pit according to claim 2, is characterized in that: the one end of screw rod (2) is rotated and is set up on the inner wall of loading board (1), the other end of screw rod (2) extends to the outside of loading board (1) and the output shaft of fixedly connected with driving motor (3), driving motor (3) fixed mounting is on loading board (1).
4. The device for accurately positioning the anti-floating anchor rod of the cage core capsule of the deep foundation pit according to claim 1, is characterized in that: two one side that position sleeve (16) is relative all is formed with the constant head tank, the edge of constant head tank top and bottom all is formed with arcwall face (17).
5. The device for accurately positioning the anti-floating anchor rod of the cage core capsule of the deep foundation pit according to claim 1, is characterized in that: one ends of the front and the back adjacent inserted rods (13) far away from the positioning sleeve (16) are connected through a bent rod (18);
the bottom fixed mounting of one side of intermediate plate (11) back to position sleeve (16) has fixed plate (19), the bottom fixed mounting of fixed plate (19) has adjusting motor (20), the output shaft top fixed mounting of adjusting motor (20) has eccentric wheel (21), and eccentric wheel (21) rotate and set up in knee lever (18).
6. The device for accurately positioning the anti-floating anchor rod of the cage core capsule of the deep foundation pit according to claim 5, is characterized in that: the top of position sleeve (16) is fixed and is provided with range finding sensor (22), the output electric connection of range finding sensor (22) has the controller, the output of controller and the input electric connection of accommodate motor (20).
7. The device for accurately positioning the anti-floating anchor rod of the cage core capsule of the deep foundation pit according to claim 1, is characterized in that: first moving blocks (23) are arranged inside the first connecting plate (8) and the second connecting plate (9) in a sliding mode, and one sides, opposite to the first moving blocks (23), of the two first moving blocks are fixedly connected with first clamping sleeves (25) through first moving plates (24).
8. The device for accurately positioning the anti-floating anchor rod of the cage core capsule of the deep foundation pit according to claim 7, is characterized in that: the inner walls of the two first moving blocks (23) are in threaded connection with first screw rods (26), and the two first screw rods (26) are respectively and rotatably arranged in the first connecting plate (8) and the second connecting plate (9);
fixed mounting has from driving wheel (27) on first lead screw (26), the outer wall meshing of following driving wheel (27) has drive wheel (28), the center department fixed mounting of drive wheel (28) has axis of rotation (29), the terminal fixed mounting of axis of rotation (29) has knob (30).
9. The device for accurately positioning the anti-floating anchor rod of the cage core capsule of the deep foundation pit according to claim 1, is characterized in that: one end of each of the two middle plates (11), which faces away from the bearing plate (1), is fixedly provided with a tail plate (12), a second moving block (31) is arranged in each of the two tail plates (12) in a sliding manner, and one side, opposite to each of the two second moving blocks (31), is fixedly connected with a second jacket (33) through a second moving plate (32);
the inner wall of the second moving block (31) is in threaded connection with a second lead screw (34), one end of the second lead screw (34) is rotatably arranged on the inner wall of the tail plate (12), and the other end of the second lead screw (34) extends to the outside of the tail plate (12) and is fixedly connected with a rotating column (35).
10. A construction method of a deep foundation pit cage core bag anti-floating anchor rod accurate positioning device is characterized by comprising the following steps:
s1, after the anchor hole is drilled, hoisting and moving the anchor rod to the position above the anchor hole through a tower crane;
s2, moving the bearing plate (1) to an anchor hole position through the moving vehicle, and controlling the driving motor (3) to operate to enable the positioning sleeves (16), the first clamping sleeve (25) and the second clamping sleeve (33) of the three groups of positioning mechanisms to be opened;
s3, respectively clamping the reinforcing steel bars (36), the grouting pipes (38) and the exhaust pipes (39) of the anchor rods into the positioning sleeve (16), the first clamping sleeve (25) and the second clamping sleeve (33), and then controlling the driving motor (3) to reversely operate to position the reinforcing steel bars (36), the grouting pipes (38) and the exhaust pipes (39);
s4, slowly moving the anchor rod downwards through the tower crane and gradually penetrating into the anchor hole;
and S5, after the anchor rod is settled to the preset position, controlling the driving motor (3) to operate to open the positioning sleeves (16), the first clamping sleeve (25) and the second clamping sleeve (33) of the three groups of positioning mechanisms, releasing the positioning of the reinforcing steel bar (36), the grouting pipe (38) and the exhaust pipe (39), and moving the mobile vehicle away to complete the whole construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210942400.9A CN115198812A (en) | 2022-08-08 | 2022-08-08 | Precise positioning device for cage core bag anti-floating anchor rod of deep foundation pit and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210942400.9A CN115198812A (en) | 2022-08-08 | 2022-08-08 | Precise positioning device for cage core bag anti-floating anchor rod of deep foundation pit and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115198812A true CN115198812A (en) | 2022-10-18 |
Family
ID=83585975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210942400.9A Withdrawn CN115198812A (en) | 2022-08-08 | 2022-08-08 | Precise positioning device for cage core bag anti-floating anchor rod of deep foundation pit and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115198812A (en) |
-
2022
- 2022-08-08 CN CN202210942400.9A patent/CN115198812A/en not_active Withdrawn
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Application publication date: 20221018 |