CN219710260U - Construction device for sampling rock and soil at pile end of ultra-deep bored concrete pile - Google Patents
Construction device for sampling rock and soil at pile end of ultra-deep bored concrete pile Download PDFInfo
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- CN219710260U CN219710260U CN202321043795.5U CN202321043795U CN219710260U CN 219710260 U CN219710260 U CN 219710260U CN 202321043795 U CN202321043795 U CN 202321043795U CN 219710260 U CN219710260 U CN 219710260U
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- 238000005070 sampling Methods 0.000 title claims abstract description 53
- 238000010276 construction Methods 0.000 title claims abstract description 28
- 239000011435 rock Substances 0.000 title claims abstract description 22
- 239000002689 soil Substances 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 61
- 239000010959 steel Substances 0.000 claims abstract description 61
- 230000002787 reinforcement Effects 0.000 claims abstract description 26
- 238000005553 drilling Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to the technical field of civil construction engineering, in particular to a construction device for sampling rock and soil at a pile end of an ultra-deep filling pile. Comprises a pre-buried steel pipe, a reinforcement cage, a triangular bracket, a hoisting tool and a bench drill; the embedded steel pipes are fixed in the reinforcement cage and are put down into the bored concrete pile hole together, the triangular bracket stretches over the bored concrete pile, the triangular bracket comprises three triangular bracket vertical rods, the top ends of the three triangular bracket vertical rods are fixed through bracket connecting pins, and triangular bracket cross bars are connected between the three vertical rods; a hoisting tool is arranged below the triangular bracket; the hoisting tool is detachably connected with the top end of the drill rod through a drill rod connecting pin; the bottom of the drill rod is connected with a sampling drill bit, the drill rod and the sampling drill bit are arranged in the embedded steel pipe through a hoisting tool, and the drill rod is connected with the bench drill to drill and sample. The device has the advantages of high sampling success rate of depth holes, easy operation, low cost and high construction efficiency, and solves the problems of long construction time, low speed and high cost of the existing device.
Description
Technical Field
The utility model relates to the technical field of civil construction engineering, in particular to a construction device for sampling rock and soil at a pile end of an ultra-deep filling pile.
Background
Pile end sediment (virtual soil) of a bored pile is one of key factors affecting the bearing capacity of a pile foundation. Pile tip geotechnical drilling sampling is one of methods for checking whether pile tip sediment (virtual soil) meets design requirements. The traditional bored concrete pile sampling mode is to drill downwards through the reconnaissance rig at the stake center trompil and take a sample, and this mode is comparatively ideal to the stake effect that pile body length is less (within 30 m), but when pile body length is great (exceeds 30 m), probably has the condition that can't creep into the pile tip, because along with the increase of drilling depth, the drilling can take place to deviate from out the pile body scope, and then can't detect the condition of rock soil below the pile tip. Meanwhile, the mode has long construction time, low speed and high cost. Therefore, in order to detect the performance of the rock soil at the pile end of the ultra-deep filling pile, it is necessary to research a construction device which is convenient to operate and has less damage to the pile body, and the drilling can not deviate from the range of the pile body when the rock soil of the ultra-deep filling pile is sampled.
In the prior art, the application number is CN202011241134.4, and the name is a bored concrete pile concrete sampling device and a bored concrete pile concrete sampling method, adopts the mode that balancing weight and tensile piece and fly leaf form confined toper space to take a sample, has the balancing weight position of falling difficult control, and when the harder condition of rock and soil is encountered, the fly leaf sample has the lower problem of success rate.
Disclosure of Invention
The utility model aims at: the construction device for sampling rock and soil at the pile end of the ultra-deep filling pile has the advantages of controllable depth hole direction, high sampling rate, simple structure, easy operation, low cost and high efficiency.
The technical scheme of the utility model is as follows:
a construction device for sampling rock and soil at the pile end of an ultra-deep cast-in-place pile comprises an embedded steel pipe, a reinforcement cage, a triangular bracket, a hoisting tool and a bench drill; the method is characterized in that: the embedded steel pipes are fixed in the reinforcement cage and are put down into the bored concrete pile hole together, the triangular bracket stretches over the bored concrete pile, the triangular bracket comprises three triangular bracket vertical rods, the top ends of the three triangular bracket vertical rods are fixed through bracket connecting pins, and a triangular bracket cross rod is connected between the three vertical rods;
the top end of the triangular bracket is connected with a hoisting tool through a hook, and the bottom of the hoisting tool can be movably connected with a drill rod;
the lower part of the drill rod is connected with a sampling drill bit, and the drill rod and the sampling drill bit are arranged in the embedded steel pipe through a hoisting tool; during drilling, the drill rod is detached from the hoisting tool and is mounted on the bench drill.
Further, the embedded steel pipes are fixed in the reinforcement cage in a binding and welding mode.
Furthermore, when the multi-section reinforcement cage is manufactured, the length of the embedded steel pipe is matched with the length of each section of reinforcement cage, and each section of embedded steel pipe is connected with the embedded steel pipe in a welding or hydraulic mode.
And further, the pre-buried steel pipe needs to leak out of the pile top of the cast-in-place pile by 10cm, the bottom of the steel pipe is sealed when the steel pipe is lowered, and the water is added into the pre-buried steel pipe to be sealed after a pile hole is placed.
Further, the hoisting tool comprises a small-sized loop chain electric hoist, the small-sized loop chain electric hoist is hoisted below the triangular bracket through a hook, and the hook is connected to the lower part of the small-sized loop chain electric hoist through an electric hoist guide chain; the U-shaped ring is hung on the hook, and the small-sized ring chain electric hoist is connected with a remote controller.
Further, the U-shaped ring is detachably connected with the top end of the drill rod through the drill rod connecting pin.
Furthermore, after the sampling drill bit and the drill rod are downwards arranged at the bottom of the prefabricated steel pipe, the bench drill is fixed at the pile end after being leveled, and the center of the bench drill and the center of the drill rod are ensured to be in a straight line.
Further, the tripod cross bars are provided with an upper group and a lower group which are fixedly connected between the three tripod upright posts along with the shape respectively, each group of tripod cross bars comprises three cross bars, and each cross bar is connected between the two tripod upright posts.
The utility model has the beneficial effects that:
1. the embedded steel pipe is fixed in the reinforcement cage, and the sampling drill bit and the drill rod are arranged at the bottom of the prefabricated steel pipe for sampling, so that the success rate of sampling rock and soil at the pile end of the ultra-deep filling pile is greatly improved, and the method has a positive effect on judging the geological condition of the rock and soil at the pile end;
2. the arrangement of the embedded steel pipe can prevent the drilled hole from deviating from the pile body, compared with the conventional pile body sampling, the sampling workload in the range from the pile top to the bottom of the steel pipe is reduced, the construction efficiency is improved, and the cost is saved;
3. meanwhile, the method can also be used for the treatment mode that the pipe blockage of the acoustic pipe is difficult to detect when the pile foundation is detected by ultrasonic waves, and has better economic benefit.
Description of the drawings:
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of a borehole sampling process according to the present utility model.
In the figure: 1. a tripod upright rod; 2. a tripod cross bar; 3. a bracket connecting pin; 4. a hook; 5. small-sized ring chain electric hoist; 6. chain guide for electric hoist; 7. a remote controller; 8. a U-shaped ring; 9. a drill pipe connecting pin; 10. a drill rod; 11. embedding a steel pipe; 12. a sampling drill bit; 13. a bench drill base; 14. a base fixing bolt; 15. bench drill rocking handle; 16. bench drill slide connectors; 17. bench drill handle; 18. a slideway upright rod; 19. a slideway; 20. a bench drill motor; 21. a bench drill driver; 22. and (5) a reinforcement cage.
The specific embodiment is as follows:
the following description of the embodiments of the present utility model 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 utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
1-2, a construction device for sampling rock and soil at the pile end of an ultra-deep cast-in-place pile comprises a pre-buried steel pipe 11, a reinforcement cage 22, a triangular bracket, a hoisting tool and a bench drill; the embedded steel pipe 11 is fixed in the reinforcement cage 22 and is put down into a bored concrete pile hole together, the triangular bracket stretches over the bored concrete pile, the triangular bracket comprises three triangular bracket vertical rods 1 and a triangular bracket cross rod 2 connected between the three vertical rods, and the top ends of the three triangular bracket vertical rods 1 are fixed through bracket connecting pins 3; the triangular bracket cross bars 2 are provided with an upper group and a lower group which are fixedly connected between the three triangular bracket upright bars 1 along with the shape respectively, each group of triangular bracket cross bars 2 comprises three cross bars, and each cross bar is connected between the two triangular bracket upright bars 1.
The embedded steel pipes 11 are fixed in the reinforcement cage 22 in a binding and welding mode. When the multi-section steel reinforcement cage 22 is manufactured, the length of the embedded steel pipe 11 and the length of each section of steel reinforcement cage 22 are manufactured in a matched mode, and each section of embedded steel pipe 11 are connected in a welded or hydraulic mode. The embedded steel pipe 11 needs to leak 10cm from the pile top of the cast-in-place pile, the bottom of the steel pipe is sealed when the pile is lowered, and the embedded steel pipe 11 is filled with water for sealing after a pile hole is placed.
A lifting tool is arranged below the triangular bracket, and the bottom of the lifting tool is connected with a bench drill; the hoisting tool comprises a small-sized loop chain electric hoist 5, and the small-sized loop chain electric hoist 5 is connected with a remote controller 7. The small-sized loop chain electric hoist 5 is hoisted below the triangular bracket through the hook 4, and the hook 4 is connected to the lower part of the small-sized loop chain electric hoist 5 through the electric hoist guide chain 6.
The U-shaped ring 8 is hung on the hook 4, the bench drill comprises a drill rod 10, and the U-shaped ring 8 is detachably connected with the top end of the drill rod 10 through a drill rod connecting pin 9; the drill rod 10 is arranged in the embedded steel pipe 11, and the bottom of the drill rod 10 is connected with the sampling drill bit 12. The sampling drill bit 12 and the drill rod 10 are arranged below the pipe bottom of the prefabricated steel pipe 11, then are detached from the hoisting tool, the bench drill is leveled and then fixed on the bench drill base 13, and the bench drill base 13 is locked with the workbench at the top of the cast-in-place pile through the base fixing bolt 14, so that the center of the bench drill and the center of the drill rod 10 are ensured to be in a straight line. The bench drill motor 20 is connected to the bench drill driver 21 and secured to the bench drill slide 19 connector 16, the bench drill driver 21 being slidable up and down along the slide 19 on the bench drill slide 19 upright 18, fine-tuned and secured by the bench drill cradle 15 and bench drill handle 17. During sampling, the drill rod 10 is connected to a bench drill driver 21, which drives the drill rod 10 down a slide 19 for drilling.
The working principle of the utility model is as follows: when the reinforcement cage 22 is placed under the construction of the cast-in-place pile, the embedded steel pipe 11 (with the diameter of 50 mm) and the reinforcement cage 22 are fixed together and are arranged in a through length way, two ends of the embedded steel pipe 11 are sealed, and water is added into the pipe to keep the pressure intensity in order to ensure that the embedded steel pipe 11 is not deformed in the casting process; after normal pouring is completed, a sampling drill bit 12 (with the diameter of 45 mm) and a drill rod 10 are arranged below the embedded steel pipe 11, and a bench drill is adopted to drill and sample the pile end.
The utility model is embodied in:
(1) The embedded steel pipe 11 is fixed: and the reinforcement cage 22 is fixed by binding and welding. The bottom of the reinforcement cage 22 is used for ensuring the fixation of the embedded steel pipe 11 to be firm, the bottom of the embedded steel pipe 11 is sealed in a welding mode, and the middle and the top of the embedded steel pipe are connected with the reinforcement cage 22 in a binding mode; when the multi-section reinforcement cage 22 is manufactured, the length of the embedded steel pipes 11 is matched with the length of each section of reinforcement cage 22, each section of embedded steel pipes 11 is connected in a welding or hydraulic mode, and finally the steel pipes need to leak 10cm from the pile top and are sealed after water is added;
(2) Bench drill parameters and selection of steel pipe, drill pipe 10, sampling drill bit 12: according to the pile length and the length of the embedded steel pipe 11, table drilling parameters, a drill rod 10 and a drill bit can be selected according to the table 1 and the table 2 respectively;
table 1 bench drill parameters:
table 2 selection parameters of drill pipe and drill bit:
(3) The sampling drill bit 12 and the drill rod 10 are arranged below: after pile forming and curing reach the age, the pile end of the cast-in-place pile is leveled, the top of an embedded steel pipe 11 is leaked out, after the sealing is uncovered, a selected drill rod 10 and a sampling drill bit 12 are connected, threads are machined on a drill rod connecting pin 9, a threaded hole matched with the drill rod connecting pin 9 is machined at the top end of the drill rod 10, the top end of the drill rod 10 is fixed below a U-shaped ring 8 through the drill rod connecting pin 9, the U-shaped ring 8 is hoisted below an electric hoist guide chain 6, then a triangular bracket is adopted, a small-sized ring chain electric hoist 5 is matched, the sampling drill bit 12 and the drill rod 10 are controlled by a remote controller 7, and the sampling drill bit 12 and the drill rod 10 are arranged below the pipe bottom through the embedded steel pipe 11;
(4) Drilling and sampling: after the drill bit and the drill rod 10 are arranged below the pipe bottom, the bench drill is fixed on the workbench after being leveled, the center of the bench drill and the center of the drill rod 10 are guaranteed to be in a straight line, after the power supply is connected, the drill is slowly drilled, and the drill rod 10 is thinner, so that the drilling process is pressurized as little as possible or is not pressurized, and the drill sticking is reduced; then sampling is carried out according to the length of the sampling drill bit 12, and drilling is stopped after the sampling length is reached;
(5) Pulling the drill pipe 10 and the sampling drill bit 12: the method is the same as that of arranging the sampling drill bit 12 and the drill rod 10 downwards, the triangular bracket is matched with the small-sized loop chain electric hoist 5 to carry out lifting, and static force is adopted as much as possible to disassemble the drill rod 10 so as to prevent the rock sample in the sampling drill bit 12 from falling off due to vibration; the sampling is completed.
The above description is merely a preferred embodiment of the present utility model, and the above illustration is not to be construed as limiting the spirit of the present utility model in any way, and any simple modification or variation of the above embodiments according to the technical spirit of the present utility model, and equivalent embodiments that may be changed or modified to equivalent variations using the above disclosed technical spirit of the present utility model, will fall within the scope of the technical solutions of the present utility model, without departing from the spirit and scope of the present utility model.
Claims (8)
1. The construction device for sampling rock and soil at the pile end of the ultra-deep cast-in-place pile comprises an embedded steel pipe (11), a reinforcement cage (22), a triangular bracket, a hoisting tool and a bench drill; the method is characterized in that: the embedded steel pipe (11) is fixed in the reinforcement cage (22) and is lowered into a bored concrete pile hole together, the triangular bracket stretches over the bored concrete pile, the triangular bracket comprises three triangular bracket vertical rods (1), the top ends of the three triangular bracket vertical rods (1) are fixed through bracket connecting pins (3), and a triangular bracket cross rod (2) is connected between the three vertical rods;
the top end of the triangular bracket is connected with a lifting tool through a hook (4), and the bottom of the lifting tool is movably connected with a drill rod (10);
the lower part of the drill rod (10) is connected with a sampling drill bit (12), and the drill rod (10) and the sampling drill bit (12) are arranged in the embedded steel pipe (11) through hoisting tools; during drilling, the drill rod (10) is detached from the hoisting tool and is mounted on the bench drill.
2. The construction device for sampling rock and soil at the pile end of the ultra-deep cast-in-place pile according to claim 1, wherein the construction device comprises: the embedded steel pipe (11) is fixed in the reinforcement cage (22) in a binding and welding mode.
3. The construction device for sampling rock and soil at the pile end of the ultra-deep cast-in-place pile according to claim 2, wherein the construction device comprises: when the multi-section steel reinforcement cage (22) is manufactured, the length of the embedded steel pipe (11) and the length of each section of steel reinforcement cage (22) are manufactured in a matched mode, and each section of embedded steel pipe (11) is connected with each section of embedded steel pipe (11) in a welding or hydraulic mode.
4. A construction device for sampling rock and soil at a pile end of an ultra-deep cast-in-place pile according to claim 3, wherein: the embedded steel pipe (11) needs to leak 10cm from the pile top of the bored concrete pile, the bottom of the steel pipe is sealed when the embedded steel pipe is put down, and water is added into the embedded steel pipe (11) for sealing after a pile hole is placed.
5. The construction device for sampling rock and soil at the pile end of the ultra-deep cast-in-place pile according to claim 1, wherein the construction device comprises: after the sampling drill bit (12) and the drill rod (10) are arranged below the prefabricated steel pipe bottom, the bench drill is fixed at the pile end after being leveled, and the center of the bench drill and the center of the drill rod (10) are ensured to be in a straight line.
6. The construction device for sampling rock and soil at the pile end of the ultra-deep cast-in-place pile according to claim 1, wherein the construction device comprises: the hoisting tool comprises a small-sized loop chain electric hoist (5), the small-sized loop chain electric hoist (5) is hoisted below the triangular bracket through a hook (4), and the hook (4) is connected below the small-sized loop chain electric hoist (5) through an electric hoist guide chain (6); the U-shaped ring (8) is hung on the hook (4), and the small-sized endless chain electric hoist (5) is connected with a remote controller (7).
7. The construction device for sampling rock and soil at the pile end of the ultra-deep cast-in-place pile according to claim 6, wherein: the U-shaped ring (8) is detachably connected with the top end of the drill rod (10) through the drill rod connecting pin (9).
8. The construction device for sampling rock and soil at the pile end of the ultra-deep cast-in-place pile according to claim 1, wherein the construction device comprises: the triangular bracket cross bars (2) are provided with an upper group and a lower group, are respectively fixedly connected between the three triangular bracket vertical bars (1) along with shape, each group of triangular bracket cross bars (2) comprises three cross bars, and each cross bar is connected between the two triangular bracket vertical bars (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321043795.5U CN219710260U (en) | 2023-05-05 | 2023-05-05 | Construction device for sampling rock and soil at pile end of ultra-deep bored concrete pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321043795.5U CN219710260U (en) | 2023-05-05 | 2023-05-05 | Construction device for sampling rock and soil at pile end of ultra-deep bored concrete pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219710260U true CN219710260U (en) | 2023-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321043795.5U Active CN219710260U (en) | 2023-05-05 | 2023-05-05 | Construction device for sampling rock and soil at pile end of ultra-deep bored concrete pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219710260U (en) |
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2023
- 2023-05-05 CN CN202321043795.5U patent/CN219710260U/en active Active
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