CN111663894A - Hole wall reinforcing and hole body straightening drilling auxiliary device - Google Patents
Hole wall reinforcing and hole body straightening drilling auxiliary device Download PDFInfo
- Publication number
- CN111663894A CN111663894A CN202010496558.9A CN202010496558A CN111663894A CN 111663894 A CN111663894 A CN 111663894A CN 202010496558 A CN202010496558 A CN 202010496558A CN 111663894 A CN111663894 A CN 111663894A
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- central shaft
- hole wall
- reinforcing
- reinforcing ring
- hole
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- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 71
- 238000005553 drilling Methods 0.000 title claims abstract description 34
- 239000002184 metal Substances 0.000 claims abstract description 38
- 238000011065 in-situ storage Methods 0.000 claims abstract description 19
- 230000002787 reinforcement Effects 0.000 claims description 12
- 238000005728 strengthening Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 7
- 239000002689 soil Substances 0.000 abstract description 4
- 210000001503 joint Anatomy 0.000 description 4
- 239000011148 porous material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention belongs to the technical field of cast-in-situ bored pile construction equipment, and particularly relates to a hole wall reinforcing and body straightening drilling auxiliary device, wherein two ends of a central shaft are respectively used for butting with a drill bit and a drill rod corresponding to a cast-in-situ bored pile; a plurality of reinforcing rings distributed along the axial direction of the central shaft; the reinforcing ring is fixedly connected with the central shaft through a plurality of connecting ribs and is coaxial with the central shaft; the metal pipes are uniformly arranged and fixed along the circumferential direction of the reinforcing ring; all the metal pipes are parallel to the central shaft, and the two times of the farthest distance between the outer wall of each metal pipe and the center of the reinforcing ring is equal to the designed diameter of the cast-in-situ bored pile. The invention adopts the contact and guide action of the metal pipe and the hole wall, and repeatedly rubs the hole wall in the rotation process of the reinforcing ring, so that the compactness of the soil body of the hole wall can be improved, the stability of the hole wall is enhanced, and the reduction of the hole diameter is prevented; the metal pipe combination fixed by the reinforcing ring plays a guiding role on the drill rod, and the inclination of the hole wall generated by the inclination of the drill rod is prevented.
Description
Technical Field
The invention belongs to the technical field of cast-in-situ bored pile construction equipment, and particularly relates to a drilling auxiliary device for hole wall reinforcement and hole body straightening.
Background
The cast-in-situ bored pile is a foundation structure widely used in civil engineering, and has the advantages of high construction speed, large bearing capacity, strong applicability and the like, but has inevitable construction difficulty. The quality control of the cast-in-situ bored pile is difficult under the influence of factors such as geological conditions, mechanical equipment, construction process and operating skills of workers.
Particularly, for weak strata such as backfill soil or silt clay and the like, the quality problem of pore diameter reduction of a pile foundation easily occurs in a drilling stage; at geological boundary layers with different hardness, the pile foundation is easy to have the quality problem of hole body inclination. The quality problem can be generally found only by the quality detection after the pile foundation drilling is finished. The problem is more serious for super-thick and weak strata or geology with frequently changed strata.
As a post remedy, the conventional method returns to the drilling stage, and adopts a method of repeatedly sweeping the hole to enlarge the aperture or straighten the hole body in the defect section according to the position provided by the quality detection report. The post-repair method wastes time and increases construction cost. Except for the conventional measures of changing a drilling machine with higher power, increasing a balancing weight, increasing the weight of the balancing weight and the like, which have higher investment cost, the pertinence for pre-prevention is simple, an auxiliary device is not researched and developed, and particularly, a special device for effectively reinforcing the hole wall and straightening the hole body is not available.
Disclosure of Invention
Based on the above-mentioned disadvantages and shortcomings of the prior art, it is an object of the present invention to at least solve one or more of the above-mentioned problems of the prior art, in other words, to provide a hole wall strengthening and bore straightening drill assisting device that satisfies one or more of the above-mentioned needs.
In order to achieve the purpose, the invention adopts the following technical scheme:
a hole wall reinforcement and hole body alignment drilling aid, comprising:
the two ends of the central shaft are respectively used for butting with a drill bit and a drill rod corresponding to the cast-in-situ bored pile;
a plurality of reinforcing rings distributed along the axial direction of the central shaft; the reinforcing ring is fixedly connected with the central shaft through a plurality of connecting ribs and is coaxial with the central shaft;
the metal pipes are uniformly arranged and fixed along the circumferential direction of the reinforcing ring; all the metal pipes are parallel to the central shaft, and the two times of the farthest distance between the outer wall of each metal pipe and the center of the reinforcing ring is equal to the designed diameter of the cast-in-situ bored pile.
Preferably, the connection structure between the reinforcing rings at the two ends of the central shaft and the end of the metal pipe is as follows:
the end part of the metal pipe is cut into the corresponding reinforcing ring and welded.
Preferably, the rest reinforcing rings are uniformly distributed among the reinforcing rings at the two ends of the central shaft and are welded with the metal pipe.
Preferably, the connecting ribs are uniformly distributed along the inner periphery of the reinforcing ring.
Preferably, the plane of the connecting ribs is perpendicular to the axial direction of the central shaft. The fixing capacity of the central shaft to the reinforcing ring is increased, so that the reinforcing ring can bear larger torque.
Preferably, two ends of the central shaft are respectively provided with a flange.
Preferably, a reinforcing rib is arranged between the flange plate and the central shaft.
Preferably, the length of the central shaft is not less than three times of the designed diameter of the cast-in-situ bored pile.
Preferably, the material and the radial dimension of the central shaft are the same as those of the drill rod. The stability of drilling is improved.
Preferably, the reinforcing ring is made of a metal plate by rolling.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention adopts the contact and guide action of the metal pipe and the hole wall, and repeatedly rubs the hole wall in the rotation process of the reinforcing ring, so that the compactness of the soil body of the hole wall can be improved, the stability of the hole wall is enhanced, and the reduction of the hole diameter is prevented; the metal pipe combination fixed by the reinforcing ring plays a guiding role on the drill rod, and the inclination of the hole wall generated by the inclination of the drill rod is prevented.
(2) The plane on which the connecting ribs are distributed is vertical to the axial direction of the central shaft, so that the fixing capacity of the central shaft to the reinforcing ring is improved, and the reinforcing ring can bear larger torque.
(3) The metal pipe is clamped into the reinforcing ring for welding, so that the connection strength of the metal pipe is improved.
Drawings
Fig. 1 is a schematic structural view of a hole wall reinforcing and body straightening drilling auxiliary device according to embodiment 1 of the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention, the following description will explain the embodiments of the present invention with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort. In addition, directional terms referred to in the following examples, for example: up, down, left, right, front or rear, etc., are simply directions with reference to the drawings. Accordingly, the directional terminology is used for purposes of illustration and is in no way limiting.
Example 1:
the hole wall reinforcing and hole body straightening drilling auxiliary device is applied to construction of a cast-in-situ bored pile.
Specifically, as shown in fig. 1, the drilling auxiliary device for hole wall reinforcement and hole body straightening of the present embodiment includes:
and the central shaft 5 is distributed along the vertical direction, and the upper end and the lower end of the central shaft are respectively used for butting a drill rod and a drill bit corresponding to the cast-in-situ bored pile. Wherein, the height of the central shaft 5 is not less than three times of the designed diameter of the cast-in-situ bored pile; moreover, the material, the radial dimension and other specifications of the central shaft 5 are the same as those of the drill rod, so that the stability of drilling can be improved conveniently after butt joint.
Three reinforcing rings distributed along the axial direction of the central shaft; the reinforcing ring and the central shaft are welded and fixed through a plurality of connecting ribs 4, and the reinforcing ring is coaxial with the central shaft. Specifically, three reinforcing ring all distributes along the horizontal plane, and top-down includes reinforcing ring 1, well reinforcing ring 3 and lower reinforcing ring 2 in proper order, and every reinforcing ring is rolled up by the metal sheet and is formed, the example: is made by rolling a steel plate. In addition, the connecting ribs 4 are uniformly distributed along the inner periphery of the reinforcing ring, and the planes of the connecting ribs are perpendicular to the axial direction of the central shaft, namely the connecting ribs are horizontally distributed, and the central shaft is vertically distributed, so that the fixing capacity of the central shaft to the reinforcing ring is increased, and the reinforcing ring can bear larger torque.
Six metal tubes 8 are uniformly installed and fixed along the circumferential direction of each reinforcing ring; specifically, the upper end opening of each metal pipe is clamped into the upper reinforcing ring 1 and welded; the lower end cutting opening of each metal pipe is clamped into the lower reinforcing ring 2 and welded; the middle reinforcing ring 3 is positioned in the middle of the upper reinforcing ring 1 and the lower reinforcing ring 2, and the outer edge of the middle reinforcing ring is welded with the middle of each metal pipe, so that the metal pipes are prevented from moving or bending. The metal pipe of the present embodiment is exemplified by a steel pipe, and may be other existing metal pipes commonly used.
All the metal pipes 3 of the embodiment are parallel to the central shaft 5, and twice of the farthest distance from the outer wall of each metal pipe to the center of the reinforcing ring is equal to the designed diameter of the cast-in-situ bored pile.
In order to facilitate the butt joint of the drill rod and the drill bit corresponding to the cast-in-situ bored pile, the flanges 6 are respectively installed at the upper end and the lower end of the central shaft of the embodiment.
In addition, a reinforcing rib 7 is arranged between the flange 6 and the central shaft 5, so that the connection strength of the structure is improved.
According to the auxiliary drilling device, in the rotation process of the reinforcing ring, the metal pipe on the outer edge repeatedly rubs the hole wall, so that the compactness of a soil body on the hole wall is improved, the stability of the hole wall is enhanced, and the reduction of the hole diameter is prevented;
the outer diameter of the overall structure of the drilling auxiliary device is the same as the designed diameter of the cast-in-situ bored pile, and the overall structure of the drilling auxiliary device has a certain height which is equal to a section of long cylinder; the hole body formed by the drill bit is similar to the outer cylinder wall, the annular moving direction of the long cylinder body in the hole body can be restricted, the drill rod can fall along the existing direction, annular deflection cannot be caused, and the hole body can be effectively prevented from inclining.
The use method of the auxiliary drilling device for hole wall reinforcement and hole body straightening in the embodiment is as follows:
after the drilling depth of the cast-in-situ bored pile reaches the sum of the height of the drill bit and the height of the central shaft, or when the depth is greater than the sum of the height of the drill bit and the height of the central shaft, the drill plate is moved away when the pore diameter is required to be prevented from being reduced and the pore body is required to be prevented from inclining, the drill bit is lifted up, a drill rod connected with the drill bit is removed, the drilling auxiliary device of the embodiment is lifted up, the drill bit is additionally arranged at the lower end of the central shaft and then is lowered down, the drill rod is continuously arranged at the upper end of the;
after drilling, the drill rod, the drilling auxiliary device and the drill bit of the embodiment are sequentially detached.
Due to different types of drilling machines, the drill rods are possibly connected by bolts, and the flange plate of the embodiment is correspondingly connected by bolts;
example 2:
the hole wall reinforcing and body straightening drilling auxiliary device of the embodiment is different from that of the embodiment 1 in that:
the number of the middle reinforcing rings is not limited to one of the embodiment 1, and is determined according to the design diameter of the cast-in-situ bored pile. When the reinforcing rings are multiple, the reinforcing rings are uniformly distributed between the reinforcing rings at the two ends of the central shaft and are welded with the metal pipe, so that the stability of hole wall reinforcement and hole body alignment is improved.
Other structures can refer to embodiment 1.
Example 3:
the hole wall reinforcing and body straightening drilling auxiliary device of the embodiment is different from that of the embodiment 1 in that:
the number of the metal pipes and the connecting ribs is not limited to the number limited in embodiment 1, and can be determined according to actual needs to ensure the integral hole wall reinforcement and hole body straightening effects.
Other structures can refer to embodiment 1.
Example 4:
the hole wall reinforcing and body straightening drilling auxiliary device of the embodiment is different from that of the embodiment 1 in that:
all the reinforcing rings are the same in size, the outer edges of the reinforcing rings and the metal pipe are directly fixed through welding, the metal pipe is not required to be clamped into the corresponding reinforcing rings through the split in the embodiment 1, and the machining efficiency is improved. However, the connection strength is slightly poor, and the requirements of different application occasions can be met.
Other structures can refer to embodiment 1.
Example 5:
the hole wall reinforcing and body straightening drilling auxiliary device of the embodiment is different from that of the embodiment 1 in that:
the structure of the butt joint of the two ends of the central shaft with the drill rod and the drill bit is not limited to the flange butt joint described in embodiment 1, and other conventional fixed connection modes such as the conventional adapter sleeve, bolt connection and the like can be adopted.
Other structures can refer to embodiment 1.
The foregoing has outlined rather broadly the preferred embodiments and principles of the present invention and it will be appreciated that those skilled in the art may devise variations of the present invention that are within the spirit and scope of the appended claims.
Claims (10)
1. The utility model provides a hole wall consolidates drilling auxiliary device with hole body alignment which characterized in that includes:
the two ends of the central shaft are respectively used for butting with a drill bit and a drill rod corresponding to the cast-in-situ bored pile;
a plurality of reinforcing rings distributed along the axial direction of the central shaft; the reinforcing ring is fixedly connected with the central shaft through a plurality of connecting ribs and is coaxial with the central shaft;
the metal pipes are uniformly arranged and fixed along the circumferential direction of the reinforcing ring; all the metal pipes are parallel to the central shaft, and the two times of the farthest distance between the outer wall of each metal pipe and the center of the reinforcing ring is equal to the designed diameter of the cast-in-situ bored pile.
2. The auxiliary drilling device for hole wall reinforcement and hole body alignment of claim 1, wherein the connection structure between the reinforcing rings at the two ends of the central shaft and the ends of the metal pipe is:
the end part of the metal pipe is cut into the corresponding reinforcing ring and welded.
3. The hole wall reinforcing and body aligning drilling aid of claim 2, wherein the remaining reinforcement rings are evenly distributed between the reinforcement rings at the two ends of the central shaft and are welded to the metal tube.
4. The hole wall reinforcing and body aligning drilling aid of claim 1, wherein said tie bars are uniformly distributed along the inner circumference of the reinforcement ring.
5. The hole wall reinforcing and body aligning drilling aid of claim 4, wherein the plane of the ribs is perpendicular to the axis of the central shaft.
6. The auxiliary device for hole wall reinforcement and hole body alignment as claimed in claim 1, wherein flanges are mounted at both ends of the central shaft.
7. A hole wall strengthening and body aligning drill aid as claimed in claim 6, wherein a strengthening rib is provided between said flange and the central shaft.
8. The hole wall strengthening and body aligning drilling aid of claim 1, wherein the length of the central shaft is no less than three times the diameter of the bored pile.
9. The hole wall strengthening and body aligning drilling aid of claim 1, wherein the central shaft is made of the same material and has the same radial dimensions as the drill rod.
10. The hole wall strengthening and shank aligning drill aid of claim 1, wherein the reinforcement ring is formed by rolling a metal plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010496558.9A CN111663894A (en) | 2020-06-03 | 2020-06-03 | Hole wall reinforcing and hole body straightening drilling auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010496558.9A CN111663894A (en) | 2020-06-03 | 2020-06-03 | Hole wall reinforcing and hole body straightening drilling auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111663894A true CN111663894A (en) | 2020-09-15 |
Family
ID=72385837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010496558.9A Pending CN111663894A (en) | 2020-06-03 | 2020-06-03 | Hole wall reinforcing and hole body straightening drilling auxiliary device |
Country Status (1)
| Country | Link |
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| CN (1) | CN111663894A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113882800A (en) * | 2021-08-27 | 2022-01-04 | 上海市基础工程集团有限公司 | Detachable submersible drilling machine gauge protection device |
| CN114293920A (en) * | 2022-03-08 | 2022-04-08 | 河北邱硕机械有限公司 | Pile machine eversion and drilling-down prevention auxiliary device and control method thereof |
| CN115402662A (en) * | 2022-09-22 | 2022-11-29 | 宁夏新开河储罐有限公司 | Large-size plastic lining anticorrosion storage equipment and preparation method thereof |
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2020
- 2020-06-03 CN CN202010496558.9A patent/CN111663894A/en active Pending
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113882800A (en) * | 2021-08-27 | 2022-01-04 | 上海市基础工程集团有限公司 | Detachable submersible drilling machine gauge protection device |
| CN114293920A (en) * | 2022-03-08 | 2022-04-08 | 河北邱硕机械有限公司 | Pile machine eversion and drilling-down prevention auxiliary device and control method thereof |
| CN114293920B (en) * | 2022-03-08 | 2022-05-10 | 河北邱硕机械有限公司 | Pile machine eversion and drilling-down prevention auxiliary device and control method thereof |
| CN115402662A (en) * | 2022-09-22 | 2022-11-29 | 宁夏新开河储罐有限公司 | Large-size plastic lining anticorrosion storage equipment and preparation method thereof |
| CN115402662B (en) * | 2022-09-22 | 2024-02-27 | 宁夏新开河储罐有限公司 | Large-size plastic-lined anti-corrosion storage device and preparation method thereof |
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