CN113931174B - Pulling-resistant grabbing and locking device suitable for foundation rock full-rotation sleeve pile-forming reinforcement cage - Google Patents
Pulling-resistant grabbing and locking device suitable for foundation rock full-rotation sleeve pile-forming reinforcement cage Download PDFInfo
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- CN113931174B CN113931174B CN202111234080.3A CN202111234080A CN113931174B CN 113931174 B CN113931174 B CN 113931174B CN 202111234080 A CN202111234080 A CN 202111234080A CN 113931174 B CN113931174 B CN 113931174B
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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
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
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- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses a pulling-resistant grabbing lock device suitable for a foundation rock full-rotation sleeve pile forming reinforcement cage, which belongs to the technical field of buildings and comprises a cylindrical reinforcement cage, wherein one end of the cylindrical reinforcement cage is welded with a reinforcing support base, a triggering structure and a hinging structure are arranged on the reinforcing support base, the triggering structure comprises a steel wire rope fixing claw, a connecting rod, a stress starting disc and a steel wire rope, a movable hole is formed in the reinforcing support base, the connecting rod penetrates through the movable hole, one end, close to the cylindrical reinforcement cage, of the connecting rod is welded with the steel wire rope fixing claw, the other end of the connecting rod is welded with the stress starting disc, the hinging structure comprises a cylindrical compression spring and a pulling-resistant grabbing lock, the cylindrical compression spring is arranged between the pulling-resistant grabbing lock and the cylindrical reinforcement cage, and the steel wire rope is arranged between the pulling-resistant grabbing lock and the steel wire rope fixing claw, so that the cylindrical reinforcement cage is prevented from floating.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to an anti-pulling grabbing and locking device suitable for a foundation rock full-rotation sleeve pile forming reinforcement cage.
Background
Rock weathering is the change and destruction of rock by long-term physical, chemical, biological effects. The most visual characteristic of the strong weathered rock stratum is the soil-like characteristic, the strong weathered rock stratum can be twisted by hands, most of the characteristics of the rock are disappeared, and great engineering geological problems are brought to underground engineering construction. The strong wind effect enables the rocks of different categories to have more engineering geological characteristics. The color of the strong weathering rock stratum is generally lighter, the color of the original rock is not reserved, only the center of the port is reserved with primary colors, the cracks are densely distributed, the strong weathering rock stratum can be broken into pieces when being pressed by fingers, the strong weathering rock stratum is insoluble in water, the appearance of the strong weathering rock stratum is reserved with the original rock tissue structure, and the rock mass is dispersed.
The construction process of the full-sleeve full-rotary drilling machine can realize the construction of cast-in-place piles, replacement piles and underground continuous walls (secant piles) by constructors under the condition that barriers such as various pile foundations, reinforced concrete structures and the like are not cleared. The construction steps mainly comprise the steps of preparing a drilling machine, taking soil, forming holes, removing barriers through a grab bucket, and pouring concrete to form piles. In addition, the construction process has no vibration and no disturbance to the foundation; in addition, the full sleeve is adopted for supporting, so that the risk of hole collapse is avoided, the vertical precision of pile forming is high, and the quality is good; the construction process does not need slurry wall protection, has little pollution to the environment, and is a novel, efficient and environment-friendly bored pile construction method which can be widely applied in cities.
The reinforcement cage is one of basic tools in pile foundation engineering, and the reinforcement cage is prefabricated and installed in sections. Before the reinforcement cage is manufactured, the reinforcement bars are straightened, and the blanking length is controlled. The manufacturing process adopts a ring-shaped die, the distance deviation of the main reinforcements is not more than +/-10 mm, and the distance of the stirrups is not more than +/-20 mm. After the reinforcement cage is formed, the diameter of the reinforcement cage cannot exceed the diameter of + -10 mm of the designed size. The length of the integrally assembled reinforcement cage is not more than +/-100 mm of the design length.
With respect to the related art in the above, the inventors consider that there are the following drawbacks: when a full-rotation sleeve drilling machine is used for constructing a cast-in-place pile in a strong-weathered bedrock, the problem of floating of a reinforcement cage often occurs, so that pile forming failure is caused, construction material waste is caused, construction cost is increased, and even construction period is influenced. The reason is that after the lowering guide pipe is filled with concrete, the upward resultant force of the concrete on the reinforcement cage (comprising the buoyancy force, side adhesive force, friction force, end resistance and the like of the concrete) is larger than the gravity of the reinforcement cage, so that the construction problem needs to be solved.
Disclosure of Invention
The invention aims to provide an anti-pulling grabbing and locking device suitable for a foundation rock full-rotation sleeve pile-forming reinforcement cage, which solves the problem that the reinforcement cage floats after concrete is poured when the bottom of a pile foundation is a strongly weathered foundation rock. In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a be applicable to all-round sleeve pipe pile reinforcement cage anti-pulling and grab lock device of bedrock, includes cylindrical reinforcement cage, cylindrical reinforcement cage's one end welding has the reinforcement to hold in the palm the end, be equipped with trigger structure and hinge structure on the reinforcement holds in the palm the end, trigger structure includes wire rope fixed jaw, connecting rod, atress starting disc and wire rope, set up the movable hole on the reinforcement holds in the palm the end, just the connecting rod runs through this movable hole, just the connecting rod is close to cylindrical reinforcement cage's one end welding wire rope fixed jaw, the other end of connecting rod with the atress starting disc welding, hinge structure includes cylindrical compression spring and anti-pulling grab lock, cylindrical compression spring sets up anti-pulling grab lock with between the cylindrical reinforcement cage, wire rope sets up anti-pulling grab lock and wire rope fixed jaw between.
Preferably, the hinge structure further comprises a fixed baffle, a double-head threaded rod and a nut, wherein the fixed baffle is connected with the reinforcing support bottom, and one end of the anti-pulling grabbing lock is movably connected with the double-head threaded rod.
Preferably, the anti-pulling grab lock is obliquely arranged at one end far away from the double-head threaded rod, and forms an obtuse angle with the anti-pulling grab lock.
Preferably, the steel wire rope fixing claw is at least provided with two fixing claws and a fixing column, one end of each fixing claw is welded on each fixing column, and the fixing columns are symmetrically arranged in pairs.
Preferably, the steel wire rope is a single-ring steel wire rope connected end to end.
Preferably, the cylindrical compression spring is disposed adjacent to the reinforcement shoe.
Preferably, the connecting rod is made of smooth round steel bars, and the fixed disc is welded on the connecting rod.
Preferably, the fixed disc divides the connecting rod into an upper connecting rod and a lower connecting rod, and the length of the upper connecting rod is matched with the length of the anti-pulling grabbing lock.
Preferably, the cylindrical reinforcement cage comprises a plurality of stressed main reinforcements arranged in a surrounding manner and a plurality of circumferential stirrups welded with the stressed main reinforcements, wherein one ends of the stressed main reinforcements are inwards folded and welded on the reinforcing support.
Preferably, the diameters of the anti-pulling grab lock and the steel wire rope fixing claw are larger than the diameter of the stressed main rib.
In summary, the invention has the following beneficial effects:
the invention relates to a pulling-resistant grabbing lock device for a foundation rock full-rotation sleeve pile-forming steel reinforcement cage, which is composed of a cylindrical steel reinforcement cage, a reinforcing support bottom, a pulling-resistant grabbing lock, a hinge structure, a triggering structure, a cylindrical compression spring and a steel wire rope. In addition, the preparation materials of the device are easy to obtain, and the device is economical, so that the construction cost is saved.
2. The invention relates to a pulling-resistant grabbing and locking device for a foundation rock full-rotation sleeve pile forming reinforcement cage, which comprises a steel wire rope fixing claw, a connecting rod, a fixing disc and a stress starting disc, wherein the connecting rod penetrates through a cylindrical movable hole of a reinforcing support bottom, the steel wire rope fixing claw is welded at the upper part, the fixing disc is welded at the middle part, and the stress starting disc is welded at the lower part. When the trigger structure does not touch the strong-wind bedrock at the bottom layer, the reinforcing steel ropes and the springs are in a tensioning state, so that the anti-pulling grab lock can be effectively in a tightening state, and the anti-pulling grab lock is prevented from being opened in advance when the reinforcement cage is lowered. When the forced starting disc is pressed by the strong-weathered bedrock at the bottom, the connecting rod moves upwards, the steel wire rope is changed into a loose state from a tensioned state, and at the moment, the anti-pulling grabbing lock can be outwards opened due to extrusion of the lower spring, so that after the triggering structure is started, the anti-pulling grabbing lock can be in an open state, and the success rate of the device is ensured.
3. The invention relates to a pulling-resistant grabbing lock device for a foundation rock full-rotation sleeve pile-forming reinforcement cage, which consists of a cylindrical reinforcement cage, a reinforcing support, a pulling-resistant grabbing lock, a hinge structure, a trigger structure, a cylindrical compression spring and a steel wire rope, wherein when the bottom pulling-resistant grabbing lock device is not started, the folding diameter of the lower part of the reinforcement cage is as follows
The diameter of the reinforcing support bottom is +.>
Diameter of the reinforcing support>
Is larger than the furling diameter of the lower part of the reinforcement cage>
The extension of the anti-pulling grab lock is ensured to have a sufficient distance; the connecting rod is made of smooth steel bars, and penetrates through the small holes, the middle part of the rod body is welded with a fixed disc, the bottom end of the connecting rod is welded with a stress starting disc, the top end of the connecting rod is welded with a steel wire rope fixing claw, and the upper connecting rod is +.>
The lower connecting rod is->
The upper connecting rod is->
Is approximately equal to the length of the anti-pulling grab lock>
The same; distance of lower connecting rod->
Not less than 100mm to ensure that the connecting rod has enough distance upwards to ensure the opening of the anti-floating pile lock.
4. Through the cooperation of anti-pulling grab lock and wire rope fixed jaw, make anti-pulling grab lock contact the inner wall of strong weathering bedrock, will firmly block cylindrical steel reinforcement cage this moment, provide a reliable anti-pulling force, reach the purpose that prevents cylindrical steel reinforcement cage come-up.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of the trigger structure of the present invention;
FIG. 3 is a front view of the structure of the present invention;
FIG. 4 is a top view of the structure of the present invention;
FIG. 5 is a top view of the structure of the present invention;
FIG. 6 is a schematic perspective view of a hinge structure according to the present invention;
FIG. 7 is a schematic view of the bottom structure of the present invention in its operational state;
fig. 8 is a cross-sectional view of fig. 7 in accordance with the present invention.
In the figure 1, a cylindrical reinforcement cage; 2. a stressed main rib; 3. a hoop stirrup; 4. reinforcing ribs; 5. reinforcing the support bottom; 6. a hinge structure; 7. anti-pulling grab lock; 8. a cylindrical compression spring; 9. a wire rope; 10. a trigger structure; 11. a wire rope fixing claw; 12. a connecting rod; 13. a fixed disc; 14. a force-activated disc; 15. a fixed baffle; 16. a double-ended threaded rod; 17. nut, 18, sleeve.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-8, an anti-pulling grabbing lock device for a foundation rock full-rotation sleeve pile forming reinforcement cage comprises a cylindrical reinforcement cage 1, wherein a reinforcing support bottom 5 is welded at one end of the cylindrical reinforcement cage 1, a triggering structure 10 and a hinging structure 6 are arranged on the reinforcing support bottom 5, the triggering structure 10 comprises a steel wire rope fixing claw 11, a connecting rod 12, a stress starting disc 14 and a steel wire rope 9, a movable hole is formed in the reinforcing support bottom 5, the connecting rod 12 penetrates through the movable hole, one end, close to the cylindrical reinforcement cage 1, of the connecting rod 12 is welded with the steel wire rope fixing claw 11, the other end of the connecting rod 12 is welded with the stress starting disc 14, the hinging structure 6 comprises a cylindrical compression spring 8 and an anti-pulling grabbing lock 7, the cylindrical compression spring 8 is arranged between the anti-pulling grabbing lock 7 and the cylindrical reinforcement cage 1, one end of the cylindrical compression spring 8 is fixedly connected to one side of the anti-pulling grabbing lock 7, the other end of the cylindrical compression spring 8 is fixedly connected to a stress main bar 2, and the steel wire rope 9 is arranged between the anti-pulling grabbing lock 7 and the steel wire rope fixing claw 11.
The hinge structure 6 also comprises a fixed baffle 15, a double-head threaded rod 16 and a nut 17, wherein the fixed baffle 15 is connected with the reinforcing support bottom 5, and one end of the anti-pulling grabbing lock 7 is movably connected with the double-head threaded rod 16. The anti-pulling grab lock 7 is obliquely arranged at one end far away from the double-head threaded rod 16 and forms an obtuse angle with the anti-pulling grab lock 7, and when the anti-pulling grab lock 7 is obliquely opened, the anti-pulling grab lock is inserted into a strong weathered bedrock through the oblique arrangement, so that the anti-pulling capacity of the device is improved. The wire rope fixed jaw 11 is equipped with two at least fixed and grabs and a fixed column, and the one end welding of fixed grabbing is on the fixed column, and the quantity of wire rope fixed jaw 11 is four, and fixed grab two-to-two symmetry sets up, and wire rope 9 is that the head and the tail are connected single circle wire rope, and when wire rope 9 set up, the approximate route is: along one side of the anti-pulling grab lock 7, the anti-pulling grab lock is moved to the inwards folded stressed main rib 2 and then to the fixed claw, and finally returns to the anti-pulling grab lock 7 from the other side of the stressed main rib 2 to form a closed circular ring, and the steel wire rope 9 is required to be in a horizontal state when being arranged, and the height of the fixed claw of the steel wire rope 9 cannot be lower than that of the anti-pulling grab lock 7; meanwhile, in order to avoid the adverse effect on the triggering of the device, caused by the contact of the steel wire rope 9 and the stressed main rib 2, the diameters of the anti-pulling grab lock 7 and the fixed claw are slightly larger than the diameter of the stressed main rib 2. A cylindrical compression spring 8 is arranged close to the reinforcement shoe 5. Whether the device is triggered or not, the length of the spring is smaller than the original length (always in a compressed state), the connecting rod 12 is made of plain round steel bars, the fixed disc 13 is welded on the connecting rod 12, the connecting rod 12 is prevented from being separated from the reinforcing support base 5 through the arrangement of the fixed disc 13, the fixed disc 13 divides the connecting rod 12 into an upper connecting rod and a lower connecting rod, the length of the upper connecting rod is approximately equal to that of the anti-pulling grab lock 7, the steel wire rope 9 is ensured to be in a horizontal state, and the lower connecting rod is also required to be provided with enough length, so that the successful triggering of the device is ensured. The cylindrical reinforcement cage 1 comprises a plurality of stressed main reinforcements 2 arranged in a surrounding manner and a plurality of circumferential stirrups 3 welded with the stressed main reinforcements; one end of the main stress rib 2 is folded inwards and welded on the reinforcing support bottom 5.
As shown in fig. 1 and 3, the cylindrical reinforcement cage 1 is formed by welding 12 circular hoop reinforcements with a 22mm diameter stressed main reinforcement 2, wherein the outer circumferential hoop reinforcements 3 are 10mm, and the inner reinforcement reinforcements 4 are 20mm. The diameter of the cylindrical reinforcement cage 1 is 860mm, the diameter of the lower part of the reinforcement cage after being folded is 608mm, the length of the folded part of the stressed main rib 2 is 1000mm, the folded stressed main rib 2 is welded on the reinforcing support bottom 5, the diameter of the reinforcing support bottom 5 is 950mm, and the center of the reinforcing support bottom is provided with a cylindrical small hole.
As shown in fig. 2, the connecting rod 12 is made of smooth round steel bars, and passes through the small holes, and the middle part of the rod body is welded with a fixed disc, so that the upper connecting rod is 800mm, the lower connecting rod is 120mm, the bottom end of the connecting rod 12 is welded with a stress starting disc 14, and the top end is welded with a steel wire rope fixing claw 11. The wire rope fixing claw 11 is formed by welding a quadrangular prism and fixing claws, 4 fixing claws are respectively welded on the side surfaces of the prism, the prism is a cube with the side length of 40mm, the fixing claw is made of 24mm plain round steel bars and is in a right angle shape of 40 x 40mm, and the angle of the fixing claw is controlled to be 80-90 degrees in order to ensure the device to work.
As shown in fig. 6, in order to ensure that the anti-pulling grab lock 7, the stressed main rib 2 and the steel wire rope fixing claw 11 are on the same straight line, the hinge structure 6 should be uniformly welded on the reinforcing support base 5 along the radial direction of the stressed main rib 2. The distance between the hinge structure 6 and the stressed main rib 2 is 75mm, and the hinge structure 6 consists of a fixed baffle 15, a double-head threaded rod 16 and a nut 17. The fixed baffle 15 is a steel plate with the diameter of 40 multiplied by 10mm, and a cylindrical small hole with the diameter of 24mm is arranged in the middle of the plate body; the double-ended threaded rod 16 is 80mm long and has a diameter of 22mm and two threaded sections of 30mm each. A hinge structure 6 has two fixed baffles 15, the fixed baffles 15 are welded side by side on the reinforcing backing 5, and the distance between the two is 30mm.
As shown in fig. 5 and 6, the anti-pulling grab lock 7 is made of 24mm ribbed steel bars, the main body part of the anti-pulling grab lock 7 is 840mm long, the bending part is 50mm long, and the bending angle is about 160 degrees. One end of the main body part is welded with a cylindrical sleeve 18, the height of the cylindrical sleeve 18 is 30mm, the outer diameter of the bottom circular ring is 30mm, and the inner diameter is 24mm. When the anti-pulling grab lock 7 is connected with the hinge structure 6, the cylindrical sleeve 18 is placed between the two fixed baffles 15, the cylindrical small holes of the two fixed baffles 15 are aligned with the central line of the cylindrical sleeve 18, and then the double-head threaded rod 16 is inserted and screwed and fixed by the nut 17.
As shown in fig. 1, 2 and 4, the specifications of the cylindrical compression spring 8 are as follows: the original length is 150mm, the maximum pre-pressing length is 75mm, the outer diameter is 26mm, and the inner diameter is 16.5mm. The two ends of the cylindrical compression spring 8 are welded on the stressed main rib 2 and the anti-pulling grab lock 7 respectively, and as the original length of the cylindrical compression spring 8 is only 150mm, in order to ensure that the anti-pulling grab lock 7 still maintains a compressed state after being opened, the cylindrical compression spring 8 should be welded as close to the reinforced support bottom 5 as possible, and the welded position of the cylindrical compression spring 8 in the embodiment is about 120mm away from the reinforced support bottom 5. The steel wire rope 9 is made of a plurality of twisted thin steel wires, the diameter of the steel wire rope is 8mm, the steel wire rope 9 is a single-loop rope for fixing the anti-pulling grab lock, and the path of the steel wire rope is the anti-pulling grab lock 7, the stressed main rib 2, the steel wire rope fixing claw 11, the stressed main rib 2 and the anti-pulling grab lock 7. In this embodiment, one end of the steel wire rope 9 is fixed on the fixed claw, and the other end is fixed between the ribs of the anti-pulling grab lock 7, and the anti-pulling grab lock 7 is made to be nearly parallel to the stressed main rib 2 of the folding section. The length of the cylindrical compression spring is about 75mm.
As shown in fig. 7 and 8, when the reinforcement cage is not lowered to the bottom of the hole, the trigger structure 10 will not drop down due to gravity due to the action of the fixed disc 13, and at this time, the whole device is in a stress balance state under the action of the cylindrical compression spring 8 and the steel wire rope 9. Before the cylindrical reinforcement cage 1 is lowered to the designed elevation, the sleeve is lifted by about one meter, the cylindrical reinforcement cage 1 is continuously lowered to the hole bottom, the stress starting disc 14 is firstly contacted with soil, and under the action of the gravity of the cylindrical reinforcement cage 1 and the anti-pulling grabbing and locking device, the stress starting disc 14 is lifted by the upward supporting force and can drive the connecting rod 12 and the steel wire rope fixing claw 11 to move upwards together. Since the wire rope 9 is initially in a parallel state at this time, that is, the connection of the wire rope 9 on the pull-out resistant grab lock 7 is closest to the connection of the wire rope 9 on the wire rope fixing jaw 11, once the wire rope fixing jaw 11 moves upward, the wire rope 9 will slide off the fixing jaw. Under the action of the cylindrical compression spring 8, the anti-pulling grab lock 7 is outwards unfolded and finally contacts the strong weathered bedrock wall. At this time, the length of the cylindrical compression spring 8 is about 140mm, and the cylindrical compression spring is still smaller than the original length in a compressed state, and the side force is continuously applied to the anti-pulling grab lock 7, so that the anti-pulling grab lock 7 is tightly attached to the rock wall. The included angle between the anti-pulling grab lock 7 and the rock wall is about 45 degrees, when the cylindrical reinforcement cage 1 generates a floating trend due to concrete injection, the anti-pulling grab lock 7 can clamp the reinforcement cage, and a stress balance state can be generated among the cylindrical reinforcement cage 1, the anti-pulling grab lock 7 and the rock wall.
The invention relates to a use method and a working principle of a lifting-resistant grabbing lock device for a foundation rock full-rotation sleeve pile forming reinforcement cage, which are characterized in that before a cylindrical reinforcement cage 1 is arranged, a sleeve is lifted upwards by one meter, then the cylindrical reinforcement cage is arranged at the bottom of a pile foundation, a force-bearing starting disc 14 is firstly contacted with a bottom soil body, then the cylindrical reinforcement cage 1 is arranged continuously downwards, at the moment, the bottom soil body has an upward supporting force on the force-bearing starting disc 14, the force-bearing starting disc 14 moves upwards relative to a fixed disc 13, the fixed disc 13 and the force-bearing starting disc 14 move towards each other, at the moment, the force-bearing starting disc 14 drives a connecting rod 12 and a steel wire rope fixing claw 11 to rise along with the rising of the force-bearing starting disc 14, when the force-bearing starting disc rises to a certain extent, a steel wire rope 9 slides off from the steel wire rope fixing claw 11, then the elastic force recovered by a cylindrical compression spring 8 can prop up a lifting-resistant grabbing lock 7, the force-bearing grabbing lock 7 is tightly clings to the rock wall of a strong foundation rock, then concrete is poured, the cylindrical reinforcement cage 1 can generate a trend, the lifting-resistant grabbing lock 7 can reliably lift the cylindrical reinforcement cage, and the lifting-resistant steel reinforcement cage can be reliably prevented from lifting up.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.
Claims (5)
1. The utility model provides a lock device is grabbed in resistance to plucking of foundation rock full-rotation sleeve pipe pile forming steel reinforcement cage, includes cylindrical steel reinforcement cage (1), its characterized in that: one end of the cylindrical reinforcement cage (1) is welded with a reinforcement support base (5), and a triggering structure (10) and a hinging structure (6) are arranged on the reinforcement support base (5);
the triggering structure (10) comprises a steel wire rope fixing claw (11), a connecting rod (12), a stress starting disc (14) and a steel wire rope (9), wherein a movable hole is formed in the reinforcing support base (5), the connecting rod (12) penetrates through the movable hole, one end, close to the cylindrical reinforcement cage (1), of the connecting rod (12) is welded with the steel wire rope fixing claw (11), and the other end of the connecting rod (12) is welded with the stress starting disc (14);
the hinge structure (6) comprises a cylindrical compression spring (8) and a pulling-resistant grabbing lock (7), the cylindrical compression spring (8) is arranged between the pulling-resistant grabbing lock (7) and the cylindrical reinforcement cage (1), the steel wire rope (9) is arranged between the pulling-resistant grabbing lock (7) and the steel wire rope fixing claw (11), the connecting rod (12) is made of a smooth round reinforcement, a fixing disc (13) is welded on the connecting rod (12), the connecting rod (12) is divided into an upper connecting rod and a lower connecting rod by the fixing disc (13), and the length of the upper connecting rod is matched with the length of the pulling-resistant grabbing lock (7);
when the anti-pulling grabbing and locking device of the reinforcement cage is not started, the folding diameter of the lower part of the cylindrical reinforcement cage (1) is
The diameter of the reinforcement sole (5) is +.>
The diameter of the reinforcement sole (5)>
Is larger than the furling diameter of the lower part of the cylindrical reinforcement cage (1)>
The cylindrical reinforcement cage (1) comprises a plurality of stressed main ribs (2) which are arranged in a surrounding manner and a plurality of circumferential stirrups (3) which are welded with the stressed main ribs, wherein one ends of the stressed main ribs (2) are inwards folded and welded on the reinforcing support base (5);
the hinge structure (6) further comprises a fixed baffle (15), a double-end threaded rod (16) and a nut (17), the fixed baffle (15) is connected with the reinforcing support base (5), one end of the anti-pulling grabbing lock (7) is connected with the double-end threaded rod (16), the steel wire rope fixed claw (11) is at least provided with two fixed grabs and one fixed column, one end of the fixed grabs is welded on the fixed column, and the fixed grabs are symmetrically arranged in pairs.
2. The invention relates to a pull-out resistant grabbing and locking device for a foundation rock full-rotation sleeve pile forming reinforcement cage, which is characterized in that: the anti-pulling grabbing lock (7) is obliquely arranged at one end far away from the double-head threaded rod (16), and the anti-pulling grabbing lock (7) form an obtuse angle.
3. The invention relates to a pull-out resistant grabbing and locking device for a foundation rock full-rotation sleeve pile forming reinforcement cage, which is characterized in that: the steel wire rope (9) is a single-ring steel wire rope which is connected end to end.
4. The invention relates to a pull-out resistant grabbing and locking device for a foundation rock full-rotation sleeve pile forming reinforcement cage, which is characterized in that: the cylindrical compression spring (8) is arranged close to the reinforcing support base (5).
5. The invention relates to a pull-out resistant grabbing and locking device for a foundation rock full-rotation sleeve pile forming reinforcement cage, which is characterized in that: the diameters of the anti-pulling grab lock (7) and the steel wire rope fixing claw (11) are larger than the diameter of the stressed main rib (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111234080.3A CN113931174B (en) | 2021-10-22 | 2021-10-22 | Pulling-resistant grabbing and locking device suitable for foundation rock full-rotation sleeve pile-forming reinforcement cage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111234080.3A CN113931174B (en) | 2021-10-22 | 2021-10-22 | Pulling-resistant grabbing and locking device suitable for foundation rock full-rotation sleeve pile-forming reinforcement cage |
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| CN113931174A CN113931174A (en) | 2022-01-14 |
| CN113931174B true CN113931174B (en) | 2023-04-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101649613B (en) * | 2009-09-03 | 2011-11-30 | 广州市建筑科学研究院新技术开发中心有限公司 | Enlarged head prestress tubular pile and construction method thereof |
| JP2017166278A (en) * | 2016-03-18 | 2017-09-21 | 株式会社熊谷組 | Bar arrangement method in enlarged-bottom part of cast-in-place enlarged-bottom pile and creation method of pile using the bar arrangement method |
| CN106567384B (en) * | 2016-11-14 | 2018-08-24 | 合肥工业大学 | A kind of herring-bone form anchor pole |
| CN106638574B (en) * | 2016-11-21 | 2018-10-30 | 浙江科技学院 | A kind of anchoring ball preventing cast-in-place concrete pile rising of steel cage |
| CN106760219A (en) * | 2017-02-23 | 2017-05-31 | 江苏景源万河环境科技有限公司 | A kind of reducing steel reinforcement cage and its enlarging anchor rod or pile foundation |
| CN108442361B (en) * | 2018-04-28 | 2024-05-10 | 山西建筑工程集团有限公司 | Reinforced cage barb type anti-floating device for bored concrete pile and use method |
| CN111364458B (en) * | 2020-03-26 | 2021-04-09 | 中国十七冶集团有限公司 | Anti-floating anchor rod with telescopic head and construction method |
| CN213233555U (en) * | 2020-07-31 | 2021-05-18 | 中国一冶集团有限公司 | Uplift pile with sleeve and steel bar anchoring device |
| CN112982396A (en) * | 2021-03-10 | 2021-06-18 | 江苏富路建设有限公司 | Tensile fiber anchor rod body and anchor rod |
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