CN116696332B - Composite drill bit accurate positioning device for rotary pile digger on barge - Google Patents
Composite drill bit accurate positioning device for rotary pile digger on barge Download PDFInfo
- Publication number
- CN116696332B CN116696332B CN202310430483.8A CN202310430483A CN116696332B CN 116696332 B CN116696332 B CN 116696332B CN 202310430483 A CN202310430483 A CN 202310430483A CN 116696332 B CN116696332 B CN 116696332B
- Authority
- CN
- China
- Prior art keywords
- drill
- barrel
- drill bit
- fixedly connected
- outer barrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 55
- 238000006073 displacement reaction Methods 0.000 claims description 24
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims 2
- 241001330002 Bambuseae Species 0.000 claims 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 2
- 241001074085 Scophthalmus aquosus Species 0.000 claims 2
- 239000011425 bamboo Substances 0.000 claims 2
- 230000001681 protective effect Effects 0.000 claims 2
- 230000002787 reinforcement Effects 0.000 claims 1
- 239000011435 rock Substances 0.000 abstract description 18
- 238000005553 drilling Methods 0.000 abstract description 14
- 238000010276 construction Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 238000009434 installation Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000012634 fragment Substances 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 240000009087 Crescentia cujete Species 0.000 description 1
- 235000005983 Crescentia cujete Nutrition 0.000 description 1
- 235000009797 Lagenaria vulgaris Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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
- E21B47/00—Survey of boreholes or wells
- E21B47/09—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes
-
- 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
-
- 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
- E21B10/00—Drill bits
-
- 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
- E21B7/12—Underwater drilling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Structural Engineering (AREA)
- Geophysics (AREA)
- Mechanical Engineering (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to the technical field of composite drills, in particular to a composite drill accurate positioning device for a rotary pile drilling machine on a barge, which comprises an outer casing diameter barrel drill, a connecting mechanism arranged at the top of the outer casing diameter barrel drill and used for being connected with the output end of the rotary pile drilling machine, and a small diameter barrel drill arranged in the outer casing diameter barrel drill, wherein the outer casing diameter barrel drill comprises an outer barrel, the small diameter barrel drill comprises an inner barrel arranged in the outer barrel, and a plurality of circumferentially distributed outer barrel drills and inner barrel drills are respectively welded at the bottoms of the outer barrel and the inner barrel; the device also comprises a position adjusting mechanism arranged in the inner cylinder body and a position measuring mechanism arranged below the position adjusting mechanism; the composite drill bit is formed by combining the outer casing diameter barrel drill and the small diameter barrel drill, the small diameter barrel drill has smaller stress area and higher stability, and can drill into an inclined bare rock surface in a short time, so that the positioning accuracy of the outer casing diameter barrel drill is improved.
Description
Technical Field
The invention relates to the technical field of composite drill bits, in particular to a composite drill bit accurate positioning device for a rotary pile digger on a barge.
Background
At present, the bored pile is widely applied in the field of infrastructure in China, is often adopted in various project foundations of inland and inland rivers, and the main processes include bored piles, rotary-digging bored piles and the like. The bored pile has the advantages of large bearing capacity, quick construction and low cost, and is also basically suitable for the requirements of deep water foundation construction.
The coastline of China is long, a plurality of islands on the coast have development value, the construction of larger-scale wharfs and cross-sea bridges on the coast is imperative, and the corresponding sea conditions, geological conditions and the like to be faced are more complex; especially, the construction of the cross-sea bridge in China is just started, the practice of the offshore foundation construction is not mature, and the construction projects are few; thus, bored pile foundations are subject to new challenges, namely, construction of large diameter bored piles at sea.
The traditional construction process of the water filling pile basically builds a steel platform for construction, but is influenced by the high water level generated by ocean tides and high wind and high waves, and the high horizontal force brings a plurality of new problems to the construction, so that the construction difficulty is increased; typhoons in coastal areas cause short term and uncertainty in offshore construction and also cause difficulties in construction. The above factors determine the technical characteristics that the construction of the offshore cast-in-situ bored pile is more difficult than the construction of the cast-in-situ bored pile under other conditions.
In addition, when drilling the rock under the sea, the geological condition is that the bare rock surface is inclined, but the diameter of the outer casing of the rotary pile driving machine is larger, the rotary pile driving machine cannot drill under increased power in the construction process, the outer casing is not stressed uniformly, the rotary pile driving machine is easy to shake to cause deflection, and only the rotary pile driving machine can drill slowly to ensure the pile position accuracy, so the problems of difficult positioning of the outer casing, long time consumption and the like exist.
Disclosure of Invention
The invention provides a composite drill bit accurate positioning device for a rotary pile driver on a barge, which solves the technical problems of low drilling speed and low precision of the rotary pile driver and deviation caused by uneven stress of an outer casing.
The invention provides a composite drill bit accurate positioning device for a rotary pile drilling machine on a barge, which comprises an outer casing diameter barrel drill, a connecting mechanism arranged at the top of the outer casing diameter barrel drill and used for being connected with an output end of the rotary pile drilling machine, and a small diameter barrel drill arranged inside the outer casing diameter barrel drill, wherein the outer casing diameter barrel drill comprises an outer barrel, the small diameter barrel drill comprises an inner barrel arranged inside the outer barrel, and a plurality of circumferentially distributed outer barrel drill bits and inner barrel drill bits are respectively welded at the bottoms of the outer barrel and the inner barrel.
The device comprises a position adjusting mechanism arranged in an inner cylinder body and a position measuring mechanism arranged below the position adjusting mechanism, wherein the position adjusting mechanism comprises an installation circular plate rotatably connected in the inner cylinder body, and a first displacement unit and a second displacement unit are arranged on the installation circular plate and are respectively used for driving the position measuring mechanism to move in two mutually perpendicular directions.
The position measuring mechanism comprises a first pushing unit and a second pushing unit which are distributed up and down, wherein the second pushing unit comprises a shell and a sealing cover fixedly connected to the top of the shell, a gear is arranged in the shell in a rotating mode, four racks which are distributed circumferentially are meshed with the gear at the same time, and through holes which are convenient for the racks to penetrate are formed in four side walls of the shell.
The size of the first pushing unit is smaller than that of the second pushing unit, the structure of the first pushing unit is identical to that of the second pushing unit, a driving motor is mounted at the top of the first pushing unit, the output end of the driving motor is fixedly connected with a driving shaft, the driving shaft extends from top to bottom and penetrates through the bottom of the shell, and a positioning drill is fixedly connected with the driving shaft, and the driving shaft is fixedly connected with a gear in the first pushing unit and a gear in the second pushing unit.
The position measuring mechanism further comprises a measuring rod, the pushing seat is arranged at one end of the rack extending out of the shell, the measuring rod is located in the pushing seat, and the upper end of the measuring rod is hinged to the corresponding end part of the rack in the first pushing unit.
The positioning device further comprises four pressure sensors arranged at the bottom end of the inner wall of the inner cylinder body, the pressure sensors are matched with the measuring rod, and when the pressure sensors sense pressure, the control center controls the output shaft of the rotary pile digger to drive the small-diameter cylindrical drill to move so as to adjust the position of the small-diameter cylindrical drill.
According to the embodiment of the invention, the outer barrel drill bits and the inner barrel drill bits are identical in shape, the outer barrel drill bits are divided into a plurality of groups, each group of outer barrel drill bits comprises two outer barrel drill bits with different inclination angles and one vertically arranged outer barrel drill bit, the outer barrel drill bits in two adjacent groups are opposite in direction, one group is directed to the axis of the outer barrel, the other group is directed to the outside of the outer barrel, and the distribution condition of the inner barrel drill bits is identical with that of the outer barrel drill bits.
According to the embodiment of the invention, the first displacement unit comprises two guide grooves formed in the upper surface of the installation circular plate and two moving columns arranged in the corresponding guide grooves in a sliding manner, the two guide grooves are on the same straight line and point to the circle center of the installation circular plate, the tops of the two moving columns are connected with an upper connecting plate together, the bottoms of the two moving columns are connected with a lower connecting plate together, and a first spring is fixedly connected between the moving columns and the inner ends of the corresponding guide grooves.
The first displacement unit further comprises a first double-shaft motor arranged on the installation circular plate, the two output shafts of the first double-shaft motor are fixedly connected with winding wheels, first pull ropes are wound on the winding wheels, the tail ends of the two first pull ropes are fixedly connected with the two movable columns respectively, and the winding directions of the first pull ropes on the two winding wheels are opposite.
According to the embodiment of the invention, the second displacement unit comprises two yielding grooves formed in the upper surface of the mounting circular plate, the two yielding grooves are identical to the two guiding grooves in distribution mode, the two yielding grooves are mutually perpendicular to the two guiding grooves, two sides of the lower connecting plate are fixedly connected with the return guide plates, sliding columns are slidably arranged in the two return guide plates, a second spring is fixedly connected between the sliding columns and the inner ends of the return guide plates corresponding to the sliding columns, the bottom of each sliding column is fixedly connected with a connecting rod, and the position measuring mechanism is connected with the connecting rod.
The second displacement unit further comprises a second double-shaft motor arranged on the installation circular plate, the structure of the second double-shaft motor is identical to that of the first double-shaft motor, second pull ropes with opposite winding directions are fixed on two winding wheels of the second double-shaft motor, and the tail ends of the two second pull ropes penetrate through corresponding abdicating grooves and are respectively connected with the two sliding columns.
According to the embodiment of the invention, the connecting mechanism comprises a rectangular connecting frame fixedly arranged at the center of the top of the outer cylinder body and reinforcing rib plates welded at four corners of the rectangular connecting frame, and the bottom of each reinforcing rib plate is fixedly welded with the top of the outer cylinder body.
According to the embodiment of the invention, the top of the outer cylinder body is provided with a plurality of groups of flash holes which are circumferentially distributed, and the groups of flash holes and the reinforcing rib plates are alternately distributed, each group of flash holes comprises two through grooves which are radially distributed along the outer cylinder body, wherein the through grooves near the center of the outer cylinder body are communicated with the inner cylinder body, and the through grooves near the edge of the outer cylinder body correspond to an annular area formed by the outer cylinder body and the inner cylinder body.
According to the embodiment of the invention, a plurality of spiral rods distributed circumferentially are welded on the outer side wall of the outer cylinder body.
According to the embodiment of the invention, the sliding column comprises a column arranged in the circular guide plate in a sliding manner and a limiting plate fixedly connected to the top of the column for limiting the downward movement of the column, wherein thread grooves are formed in the bottom of the column and the top of the connecting rod, and the bottom of the column and the top of the connecting rod are fixedly connected through a thread pipe.
The technical scheme of the invention is as follows: the composite drill bit is formed by combining the outer casing diameter barrel drill and the small diameter barrel drill, the small diameter barrel drill has smaller stress area and higher stability, and can drill into an inclined bare rock surface in a short time, so that the positioning accuracy of the outer casing diameter barrel drill is improved.
Further, the position of the outer casing diameter barrel drill is adjusted by utilizing the matching of the position measuring mechanism and the pressure sensor, the positioning drill can drill into the rock before the small diameter barrel drill, the positioning of the point of the positioning drill is more accurate than the positioning of the surface of the small diameter barrel drill, the positioning drill is fixed in advance, and when the subsequent position adjusting mechanism moves along with the small diameter barrel drill, the position adjusting mechanism can give certain relative displacement compensation to the position measuring mechanism, and the positioning drill does not move so that the displacement datum point of the small diameter barrel drill cannot change.
Furthermore, the position measuring mechanism can be detached from the position adjusting mechanism, and the influence of the position measuring mechanism on drilling is avoided when secondary drilling is carried out.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a precise positioning device for a composite drill bit of a rotary pile driver of a barge.
Fig. 2 is a schematic view of a partially cut-away perspective structure of the accurate positioning device for the composite drill bit of the rotary pile digger of the barge.
FIG. 3 is a schematic view of a partially cut-away perspective view of a device for precisely positioning a composite drill bit of a rotary pile driver of a barge according to the present invention.
Fig. 4 is a partially cut-away perspective view of a position adjustment mechanism according to the present invention.
Fig. 5 is a partially cut-away perspective view of the position adjustment mechanism and position measurement mechanism of the present invention.
FIG. 6 is a schematic diagram showing a second perspective view of the precise positioning device of the composite drill bit of the rotary pile digger of the barge according to the present invention.
Reference numerals: 1. an outer casing diameter barrel drill; 11. an outer cylinder; 12. a screw rod; 13. an outer barrel drill bit; 14. a flash hole; 15. a fixed block;
2. a small diameter barrel drill; 21. an inner cylinder; 22. an inner barrel drill bit;
3. a connecting mechanism; 31. A rectangular connecting frame; 32. Reinforcing rib plates;
4. a position adjusting mechanism; 41. Mounting a circular plate;
42. a first displacement unit; 420. a guide groove; 421. a moving column; 422. an upper connecting plate; 423. a lower connecting plate; 424. a first spring; 425. a first biaxial motor; 426. a first pull rope;
43. a second displacement unit; 430. a relief groove; 431. a loop-shaped guide plate; 432. a sliding column; 433. a second spring; 434. a connecting rod; 435. a second double-shaft motor; 436. a second pull rope;
5. a position measuring mechanism; 51. a first pushing mechanism; 53. a weighing bar; 54. a driving motor; 55. a drive shaft; 56. positioning a drill;
52. a second pushing mechanism; 520. a housing, 521, a gear; 522. a rack; 523. pushing the base.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1, 2 and 3, the composite drill bit accurate positioning device for the rotary pile digger on the barge comprises an outer casing diameter cylindrical drill 1 and a small diameter cylindrical drill 2, wherein the small diameter cylindrical drill 2 is positioned in the outer casing diameter cylindrical drill 1 and forms a cylindrical structure in the cylindrical drill, the outer casing diameter cylindrical drill 1 comprises an outer cylindrical drill 11, the outer cylindrical drill 11 is of a cylindrical structure with a closed top and an open bottom, the small diameter cylindrical drill 2 comprises an inner cylindrical drill 21 arranged in the outer cylindrical drill 11, the inner cylindrical drill 21 is of a cylindrical structure with both upper ends and lower ends being open, the diameter of the inner cylindrical drill 21 is smaller than that of the outer cylindrical drill 11, and the inner cylindrical drill 21 and the outer cylindrical drill 11 are connected through circumferentially distributed fixing blocks 15; the top of the outer cylinder 11 is fixedly connected with a connecting mechanism 3, the connecting mechanism 3 comprises a rectangular connecting frame 31 fixedly arranged at the center of the top of the outer cylinder 11 and reinforcing rib plates 32 welded at four corners of the rectangular connecting frame 31, the bottom of the reinforcing rib plates 32 are fixedly welded with the top of the outer cylinder 11, and the arrangement of the reinforcing rib plates 32 increases the connection strength between the rectangular connecting frame 31 and the outer cylinder 11; the rectangular connecting frame 31 is fixedly connected with a driving shaft of the rotary pile digger and is used for driving the outer casing diameter cylindrical drill 1 and the small diameter cylindrical drill 2 to rotate.
With continued reference to fig. 1, fig. 2 and fig. 3, the bottoms of the outer cylinder 11 and the inner cylinder 21 are provided with a plurality of circumferentially distributed mounting grooves, wherein the mounting grooves at the bottom of the outer cylinder 11 are internally welded with outer cylinder drill bits 13, the mounting grooves at the bottom of the inner cylinder 21 are internally welded with inner cylinder drill bits 22, the outer cylinder drill bits 13 and the inner cylinder drill bits 22 have the same shape, the outer cylinder drill bits 13 are divided into a plurality of groups, each group of outer cylinder drill bits 13 comprises two outer cylinder drill bits 13 with different inclination angles and one vertically arranged outer cylinder drill bit 13, the outer cylinder drill bits 13 in two adjacent groups are opposite in direction, one group points to the axis of the outer cylinder 11, the other group points to the outside of the outer cylinder 11, and the distribution condition of the inner cylinder drill bits 22 is the same as that of the outer cylinder drill bits 13.
As shown in fig. 1, the outer side wall of the outer cylinder 11 is welded with a plurality of circumferentially distributed screw rods 12, the screw rods 12 increase friction between the outer side wall of the outer cylinder 11 and the drilled pilot hole, during the rotation of the outer cylinder 11, rock fragments in the pilot hole drilled by the outer cylinder drill 13 can move upwards along with the screw rods 12, and uneven places in the pilot hole can be scraped off secondarily by the screw rods 12, so that the drilling effect is better compared with the smooth surface of the outer cylinder 11.
As shown in fig. 1 and fig. 2, the top of the outer cylinder 11 is provided with a plurality of groups of circumferentially distributed flash holes 14, and the groups of flash holes 14 and the reinforcing rib plates 32 are alternately distributed, each group of flash holes 14 comprises two through grooves radially distributed along the outer cylinder 11, wherein the through groove near the center of the outer cylinder 11 is communicated with the inner cylinder 21, the through groove near the edge of the outer cylinder 11 corresponds to an annular area formed by the outer cylinder 11 and the inner cylinder 21, the two through grooves are arc-shaped, the through grooves are convenient for the rock fragments which are dug out by rotation to overflow from the through grooves, and meanwhile, when the rotary digging condition in the outer cylinder 11 or the inner cylinder 21 is observed by the through grooves when the rotary digging device is used for the ground on land.
As shown in fig. 3 and 4, the positioning device further includes a position adjusting mechanism 4 disposed inside the inner cylinder 21 and a position measuring mechanism 5 mounted below the position adjusting mechanism 4, the position adjusting mechanism 4 includes a mounting circular plate 41 rotatably connected inside the inner cylinder 21, a first displacement unit 42 and a second displacement unit 43 are disposed on the mounting circular plate 41, wherein the first displacement unit 42 includes two guide slots 420 disposed on an upper surface of the mounting circular plate 41 and two moving columns 421 slidably disposed in the corresponding guide slots 420, the two guide slots 420 are on the same straight line and all point to a center of the mounting circular plate 41, top portions of the two moving columns 421 are jointly connected with an upper connecting plate 422, bottom portions of the two moving columns 421 are jointly connected with a lower connecting plate 423, a first spring 424 is fixedly connected between the moving columns 421 and an inner end of the corresponding guide slot 420, the first displacement unit 42 further includes a first biaxial motor 425 mounted on the mounting circular plate 41, two output shafts of the first biaxial motor 425 are fixedly connected with the reels, the first reel and the first biaxial motor 426 is wound on the reels, and when the first reel 426 is wound with the first reel 426, the first reel 426 is gradually wound with the first reel 426, and the first reel 426 is gradually wound with the second reel 426, and the first reel 426 is gradually wound with the first reel is gradually wound on the opposite direction.
As shown in fig. 4 and fig. 5, the second displacement unit 43 includes two relief grooves 430 formed on the upper surface of the mounting circular plate 41, the two relief grooves 430 are identical to the two guide grooves 420 in distribution, the two relief grooves 430 are perpendicular to the two guide grooves 420, two sides of the lower connecting plate 423 are fixedly connected with a return guide plate 431, a space exists between the return guide plate 431 and the mounting circular plate 41, sliding columns 432 are slidably arranged in the two return guide plates 431, a second spring 433 is fixedly connected between the sliding columns 432 and the inner ends of the return guide plates 431 corresponding to the sliding columns 432, a connecting rod 434 is fixedly connected to the bottom of the sliding columns 432, and a position measuring mechanism 5 is commonly mounted at the bottom of the connecting rod 434; the second displacement unit 43 further includes a second dual-axis motor 435 mounted on the mounting disc 41, the second dual-axis motor 435 has the same structure as the first dual-axis motor 425, and second pull ropes 436 with opposite winding directions are fixed on two reels of the second dual-axis motor 435, and the ends of the two second pull ropes 436 pass through corresponding yielding grooves 430 and are respectively connected with the two sliding posts 432, so that the yielding grooves 430 play a role in avoiding the second pull ropes 436.
When the first biaxial motor 425 is started, a first pull rope 426 is unreeled, a first pull rope 426 is reeled, a moving column 421 connected with the reeled first pull rope 426 is pulled to move along the guide groove 420, the other moving column 421 is driven by the upper connecting plate 422 to synchronously move along with the first pull rope, the corresponding first spring 424 is subjected to stretching or compression deformation, and the moving column 421 drives the return guide plate 431, the sliding column 432 and the position measuring mechanism 5 connected through the connecting rod 434 to synchronously move along the direction of the guide groove 420 in the moving process; when the first pull rope 426 is started, a second pull rope 436 is also unreeled, the second pull rope 436 is reeled, and the reeled second pull rope 436 pulls the sliding column 432 connected with the second pull rope to move along the return guide plate 431, so that the position measuring mechanism 5 is driven by the connecting rod 434 to synchronously move along the direction of the abdication groove 430; the initial position of the position measuring mechanism 5 can be adjusted by the first double-shaft motor 425 and the first pull rope 426, and the position of the inner cylinder 21 can be reversely adjusted in the subsequent work.
The sliding column 432 comprises a cylinder arranged in the return guide plate 431 in a sliding manner and a limiting plate fixedly connected to the top of the cylinder for limiting the cylinder to move downwards, the limiting plate is contacted with the top of the return guide plate 431, the bottom of the cylinder and the top of the connecting rod 434 are both provided with threaded grooves, the two are fixedly connected through a threaded pipe, and the top of the threaded pipe is contacted with the bottom of the return guide plate 431 to limit the cylinder to move upwards.
As shown in fig. 5 and 6, the position measuring mechanism 5 includes a first pushing unit 51 and a second pushing unit 52 that are distributed up and down, where the second pushing unit 52 includes a housing 520 and a cover that is fixedly connected to the top of the housing, a gear 521 is disposed in the housing 520, and four racks 522 that are circumferentially distributed are meshed with the gear 521 at the same time, where two racks 522 that are parallel to each other are at the same height, two racks 522 that are perpendicular to each other are at different heights, and through holes that are convenient for the racks 522 to penetrate are formed on four side walls of the housing 520.
With continued reference to fig. 5 and 6, the size of the first pushing unit 51 is smaller than that of the second pushing unit 52, the structure of the first pushing unit 51 is the same as that of the second pushing unit 52, the top of the first pushing unit 51 is provided with a driving motor 54, the output end of the driving motor 54 is fixedly connected with a driving shaft 55, the driving shaft 55 extends from top to bottom and penetrates through the bottom of the casing 520, and then is fixedly connected with a positioning drill 56, the driving shaft 55 is fixedly connected with a gear in the first pushing unit 51 and a gear 521 in the second pushing unit 52, and the driving shaft 55 is rotatably connected with the casing in the first pushing unit 51 and the casing 520 in the second pushing unit 52.
The position measuring mechanism 5 further includes a measuring rod 53, a pushing seat 523 is installed at one end of the rack 522 extending out of the housing 520, the measuring rod 53 is located in the pushing seat 523, and the upper ends of the measuring rods 53 are hinged to the corresponding rack ends in the first pushing unit 51, wherein two opposite measuring rods 53 correspond to two guide grooves 420, the other two opposite measuring rods 53 correspond to two yielding grooves 430, when the driving motor 54 is started to drive the driving shaft 55 to rotate, the gear 521 rotates along with and engages with the rack 522 to move, the pushing seat 523 pushes the measuring rod 53 outwards, because the size of the first pushing unit 51 is smaller than the moving distance of the rack 522 in the second pushing unit 52, the rack 522 in the first pushing unit 51 also overturns around the top ends of the rack 53 in the process of outwards expanding, so as to form a prismatic frame, the cross section of the measuring rod 53 is in the shape of a calabash, the protruding part is located on the outer side of the pushing seat, the inner wall of the pushing seat is in a transverse U-shaped structure, and a magnet is arranged on the inner wall of the pushing seat for adsorbing the measuring rod 53 to absorb the inertia force of the rack 53 and the counter-rotating with the driving motor 53, and the driving rod 53 can absorb the inertia force of the rack 53 to move towards the inside the pushing seat 53 when the driving motor 53 rotates to the counter-rotating to the rack 53.
As shown in fig. 5, the bottom of the measuring rod 53 is hinged with a supporting foot, which increases the contact area between the measuring rod 53 and the inclined bare rock surface. Further, the above-mentioned driving motor 54, first biaxial motor 425 and second biaxial motor 435 all take waterproofing measures.
The working process comprises the following steps: firstly, four pressure sensors are installed at the bottom end of the inner wall of the inner cylinder 21 and are covered by flexible waterproof pads, so that the pressure sensors are prevented from contacting water, the pressure sensors are required to be installed on the moving path of the weighing rod 53, then ship moving positioning is performed through a three-dimensional visual system, and after positioning, a measurer uses an instrument to recheck the pile position, so that the process is the prior art and is not explained in detail.
Then, the rotary pile drilling machine drives the outer casing diameter cylindrical drill 1 to move downwards until the positioning drill 56 contacts the inclined bare rock surface, the positioning drill 56 is aligned with the pile position checked before, the supporting feet at the bottom of the measuring rod 53 are also abutted against the rock surface, the positioning stability of the positioning drill 56 is improved, the driving motor 54 is started to drive the driving shaft 55 to rotate, the outer casing diameter cylindrical drill 1 is kept to move downwards, the positioning drill 56 gradually drills into the rock, meanwhile, the measuring rod 53 synchronously overturns and expands in the process of drilling the rock, the supporting feet gradually leave the ground, when one measuring rod 53 contacts with the diaphragm of the pressure sensor on the inner wall of the inner cylinder 21, the pressure sensor senses the pressure, the pressure sensor converts the pressure into an electric signal to be transmitted to the control center, and the control center further controls the output shaft of the rotary pile drilling machine to drive the small diameter cylindrical drill 2 to move so as to adjust the position of the small diameter cylindrical drill 2, and the positioning of the small diameter cylindrical drill 2 is more accurate.
Taking the left front measuring rod 53 in fig. 5 as an example, when the measuring rod 53 touches the pressure sensor on the inner cylinder 21, it indicates that the inner cylinder 21 needs to move along the direction away from the measuring rod 53, then the control center controls the output shaft of the rotary pile digger to displace, so as to drive the inner cylinder 21 to move until the diaphragm of the pressure sensor is no longer under pressure, and when the inner cylinder 21 moves, the mounting circular plate 41 and the first dual-shaft motor 425 and the second dual-shaft motor 435 thereon are driven to synchronously move, and at this time, the second dual-shaft motor 435 needs to perform forward rotation or reverse rotation according to actual situations; when the second dual-axis motor 435 gradually approaches the tensioned sliding column 432, the second dual-axis motor 435 is required to rotate to continuously wind up the second pull rope 436 to tighten in order to avoid loosening of the tensioned second pull rope 436, and when the second dual-axis motor 435 gradually moves away from the tensioned sliding column 432, the second pull rope 436 is required to reversely rotate to unwind the second pull rope 436 for a distance in order to avoid that the tensioned second pull rope 436 is too much in tension to influence the position of the position measuring mechanism 5, and the first dual-axis motor 425 and the second dual-axis motor 435 can work simultaneously.
Since the positioning drill 56 is already drilled into the rock at this time, but the drilling depth is not deep, when the mounting circular plate 41 moves, the first pull rope 426 or the second pull rope 436 needs to be wound and unwound, so that the position of the position measuring mechanism 5 is ensured not to be influenced, and the accuracy of the positioning process of the small-diameter barrel drill 2 is improved.
When the position of the small-diameter barrel drill 2 is positioned accurately, the driving motor 54 continues to work, meanwhile, the output shaft of the rotary pile driver drives the outer-casing-diameter barrel drill 1 and the small-diameter barrel drill 2 to rotate through the connecting mechanism 3, the outer-casing-diameter barrel drill 1 is kept to move downwards continuously, so that the inner barrel drill bit 22 starts to drill rock, after the inner barrel drill bit 22 drills a certain distance, the positioning drill 56 cannot continue to drill downwards, at the moment, the output shaft of the rotary pile driver drives the outer-casing-diameter barrel drill 1 to move upwards vertically, the position measuring mechanism 5 is separated from the position adjusting mechanism 4 and then continues to drive the outer-casing-diameter barrel drill 1 to move downwards so as to ensure that the inner barrel drill bit 22 can be realigned with the previously drilled groove, and the rotary pile driver continues to drive the outer-casing-diameter barrel drill 1 and the small-diameter barrel drill 2 until the outer-casing-diameter barrel drill 1 and the small-diameter barrel drill 2 are completely embedded into the rock.
Finally, after the rock is taken out, the outer casing is replaced to perform rock embedding, and after the outer casing is embedded to 1.5-2 m of the rock stratum, the drill bit can be replaced to start drilling.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "first," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "first", "second", "first", "second" may include at least one such feature, either explicitly or implicitly. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (6)
1. The utility model provides a composite drill bit accurate positioning device for dig stake machine soon on barge, is used for dig stake machine output soon with being connected including outer protective casing diameter section of thick bamboo brill (1) and installing at outer protective casing diameter section of thick bamboo brill (1) top, its characterized in that:
the small-diameter barrel drill (2) is arranged in the outer casing diameter barrel drill (1), and the small-diameter barrel drill and the outer casing diameter barrel drill form a barrel-in-barrel structure, wherein the outer casing diameter barrel drill (1) comprises an outer barrel body (11), the small-diameter barrel drill (2) comprises an inner barrel body (21) arranged in the outer barrel body (11), and a plurality of circumferentially distributed outer barrel drill bits (13) and inner barrel drill bits (22) are respectively welded at the bottoms of the outer barrel body (11) and the inner barrel body (21);
the device comprises a position adjusting mechanism (4) arranged in an inner cylinder body (21) and a position measuring mechanism (5) arranged below the position adjusting mechanism (4), wherein the position adjusting mechanism (4) comprises a mounting circular plate (41) rotatably connected in the inner cylinder body (21), a first displacement unit (42) and a second displacement unit (43) are arranged on the mounting circular plate (41), and the first displacement unit (42) and the second displacement unit (43) are respectively used for driving the position measuring mechanism (5) to move in two mutually perpendicular directions;
the position measuring mechanism (5) comprises a first pushing unit (51) and a second pushing unit (52) which are distributed up and down, wherein the second pushing unit (52) comprises a shell (520) and a sealing cover fixedly connected to the top of the shell, a gear (521) is rotatably arranged in the shell (520), the gear (521) is simultaneously meshed with four racks (522) which are distributed in a circumferential manner, and through holes which are convenient for the racks (522) to penetrate are formed in four side walls of the shell (520);
the size of the first pushing unit (51) is smaller than that of the second pushing unit (52), the structure of the first pushing unit (51) is the same as that of the second pushing unit (52), a driving motor (54) is arranged at the top of the first pushing unit (51), the output end of the driving motor (54) is fixedly connected with a driving shaft (55), the driving shaft (55) extends from top to bottom and penetrates through the bottom of the shell (520) and is fixedly connected with a positioning drill (56), and the driving shaft (55) is fixedly connected with a gear in the first pushing unit (51) and a gear (521) in the second pushing unit (52);
the position measuring mechanism (5) further comprises a measuring rod (53), a pushing seat (523) is arranged at one end of the rack (522) extending out of the shell (520), the measuring rod (53) is positioned in the pushing seat (523), and the upper end of the measuring rod (53) is hinged with the corresponding end part of the rack in the first pushing unit (51);
the positioning device further comprises four pressure sensors arranged at the bottom end of the inner wall of the inner cylinder body (21), the pressure sensors are matched with the measuring rod (53), and when the pressure sensor senses the pressure applied by the Heng Lianggan (53), the control center controls the output shaft of the rotary pile digger to drive the small-diameter cylindrical drill (2) to move so as to adjust the position of the small-diameter cylindrical drill (2);
the first displacement unit (42) comprises two guide grooves (420) formed in the upper surface of the mounting circular plate (41) and two moving columns (421) which are slidably arranged in the corresponding guide grooves (420), the two guide grooves (420) are on the same straight line and are respectively pointed to the circle center of the mounting circular plate (41), the tops of the two moving columns (421) are jointly connected with an upper connecting plate (422), the bottoms of the two moving columns (421) are jointly connected with a lower connecting plate (423), and a first spring (424) is fixedly connected between the moving columns (421) and the inner ends of the corresponding guide grooves (420);
the first displacement unit (42) further comprises a first double-shaft motor (425) arranged on the mounting circular plate (41), the two output shafts of the first double-shaft motor (425) are fixedly connected with reels, first pull ropes (426) are wound on the reels, the tail ends of the two first pull ropes (426) are respectively and fixedly connected with the two movable columns (421), and the winding directions of the first pull ropes (426) on the two reels are opposite;
the second displacement unit (43) comprises two yielding grooves (430) formed in the upper surface of the mounting circular plate (41), the two yielding grooves (430) are identical to the two guide grooves (420) in distribution mode, the two yielding grooves (430) are perpendicular to the two guide grooves (420), two sides of the lower connecting plate (423) are fixedly connected with a return guide plate (431), sliding columns (432) are slidably arranged in the two return guide plates (431), a second spring (433) is fixedly connected between the sliding columns (432) and the inner ends of the return guide plates (431) corresponding to the sliding columns, connecting rods (434) are fixedly connected to the bottoms of the sliding columns (432), and a position measuring mechanism (5) is connected with the connecting rods (434);
the second displacement unit (43) further comprises a second double-shaft motor (435) arranged on the mounting circular plate (41), the structure of the second double-shaft motor (435) is the same as that of the first double-shaft motor (425), second pull ropes (436) with opposite winding directions are fixed on two reels of the second double-shaft motor (435), and the tail ends of the two second pull ropes (436) penetrate through corresponding yielding grooves (430) and are respectively connected with the two sliding columns (432).
2. The composite drill bit accurate positioning device for a rotary pile digger on a barge according to claim 1, wherein: the outer barrel drill bit (13) and the inner barrel drill bit (22) are the same in shape, the outer barrel drill bit (13) is divided into a plurality of groups, each group of outer barrel drill bit (13) comprises two outer barrel drill bits (13) with different inclination angles and one outer barrel drill bit (13) which is vertically arranged, the outer barrel drill bits (13) which are obliquely arranged in two adjacent groups are opposite in direction, one group points to the axis of the outer barrel body (11), the other group points to the outside of the outer barrel body (11), and the distribution condition of the inner barrel drill bit (22) is the same as that of the outer barrel drill bit (13).
3. A composite drill bit accurate positioning device for a rotary pile driver on a barge according to any one of claims 1 to 2, wherein: the connecting mechanism (3) comprises a rectangular connecting frame (31) fixedly installed at the center of the top of the outer cylinder body (11) and reinforcing rib plates (32) welded at four corners of the rectangular connecting frame (31), and the bottom of the reinforcing rib plates (32) is fixedly welded with the top of the outer cylinder body (11).
4. A composite drill bit accurate positioning device for a rotary pile driver on a barge according to claim 3, wherein: the top of outer barrel (11) has seted up multiunit flash hole (14) that are circumference and distribute, and multiunit flash hole (14) and reinforcement rib board (32) are alternate distribution, and every group flash hole (14) are including two along outer barrel (11) radial distribution's logical groove, and wherein be close to outer barrel (11) central logical groove and inner barrel (21) and be linked together, be close to the logical groove of outer barrel (11) edge then with the annular region that outer barrel (11) and inner barrel (21) formed corresponding.
5. A composite drill bit accurate positioning device for a rotary pile driver on a barge according to any one of claims 1, 2 and 4, wherein: the outer side wall of the outer cylinder body (11) is welded with a plurality of spiral rods (12) which are circumferentially distributed.
6. The composite drill bit accurate positioning device for a rotary pile digger on a barge according to claim 1, wherein: the sliding column (432) comprises a cylinder arranged in the return guide plate (431) in a sliding mode and a limiting plate fixedly connected to the top of the cylinder and used for limiting the cylinder to move downwards, thread grooves are formed in the bottom of the cylinder and the top of the connecting rod (434), and the bottom of the cylinder and the top of the connecting rod are fixedly connected through a thread pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310430483.8A CN116696332B (en) | 2023-04-20 | 2023-04-20 | Composite drill bit accurate positioning device for rotary pile digger on barge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310430483.8A CN116696332B (en) | 2023-04-20 | 2023-04-20 | Composite drill bit accurate positioning device for rotary pile digger on barge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116696332A CN116696332A (en) | 2023-09-05 |
| CN116696332B true CN116696332B (en) | 2024-03-01 |
Family
ID=87831843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310430483.8A Active CN116696332B (en) | 2023-04-20 | 2023-04-20 | Composite drill bit accurate positioning device for rotary pile digger on barge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116696332B (en) |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1464464A (en) * | 1974-04-25 | 1977-02-16 | Mindrill Ltd | Drill comprising a tubular drill string and apparatus releasably connectable to the bottom of said drill string |
| US6089335A (en) * | 1998-12-16 | 2000-07-18 | Boart Longyear International Holdings, Inc. | Positive latch core barrel apparatus |
| NL1016545C2 (en) * | 2000-11-03 | 2002-05-07 | Fugro Eng Bv | A rotatable core drilling device and a rotatable core drilling system equipped with such a rotatable core drilling device. |
| JP2006299591A (en) * | 2005-04-19 | 2006-11-02 | Mitsubishi Materials Natural Resources Development Corp | Casing excavation and construction equipment |
| CN203559781U (en) * | 2013-09-22 | 2014-04-23 | 北京信远华油科技有限公司 | Combined type well wall coring instrument drill bit |
| CN109797749A (en) * | 2019-01-21 | 2019-05-24 | 中铁四局集团第三建设有限公司 | Underwater foundation pit construction device and construction method |
| CN209855713U (en) * | 2019-03-29 | 2019-12-27 | 臧万祥 | Professional rock drilling and taking device for rotary drilling rig |
| WO2020023352A1 (en) * | 2018-07-24 | 2020-01-30 | Ojjo, Inc. | Threaded truss foundations and related systems, methods, and machines |
| WO2020133724A1 (en) * | 2018-12-26 | 2020-07-02 | 深圳大学 | Fidelity retaining type coring device for rock sample |
| CN211173943U (en) * | 2019-12-16 | 2020-08-04 | 浙江交工集团股份有限公司 | Novel primary and secondary drill bit of rotary drilling rig |
| AU2020101426A4 (en) * | 2020-06-17 | 2020-08-20 | Hebei Research Institute of Construction & Geotechnical Investigation Co., Ltd. | Anti-Deviation Rotary Drilling Tool for Karst Stratum and Drilling Method Thereof |
| CN211737051U (en) * | 2020-03-24 | 2020-10-23 | 中铁隧道局集团有限公司 | Deviation-preventing rotary drilling bit and rotary drilling rig |
| CN214997456U (en) * | 2021-04-16 | 2021-12-03 | 江西省地质工程(集团)公司 | Rotary excavating rock-socketed double-cylinder type drill bit |
| CN215565741U (en) * | 2021-08-30 | 2022-01-18 | 中交路桥建设有限公司 | Rotary drilling and reaming drill bit capable of realizing multi-stage reaming and reaming equipment |
| CN217080373U (en) * | 2022-04-27 | 2022-07-29 | 中交一公局集团有限公司 | Cylindrical drill guider of rotary drilling drill |
| CN218265793U (en) * | 2022-08-03 | 2023-01-10 | 河北达夫重工有限公司 | Double-layer barrel drill |
| CN115637973A (en) * | 2022-10-20 | 2023-01-24 | 中交第一航务工程局有限公司 | Long pile casing sleeve-free rotary excavating hard cutting secant pile hole forming construction process |
| CN115726692A (en) * | 2022-11-18 | 2023-03-03 | 中铁大桥局集团有限公司 | Method for forming hole in inclined rock surface by rotary drilling |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7798250B2 (en) * | 2007-08-27 | 2010-09-21 | Theresa J. Williams, legal representative | Bearing assembly inner barrel and well drilling equipment comprising same |
| US11125038B2 (en) * | 2014-08-27 | 2021-09-21 | Globaltech Corporation Pty Ltd | Downhole surveying and core sample orientation systems, devices and methods |
-
2023
- 2023-04-20 CN CN202310430483.8A patent/CN116696332B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1464464A (en) * | 1974-04-25 | 1977-02-16 | Mindrill Ltd | Drill comprising a tubular drill string and apparatus releasably connectable to the bottom of said drill string |
| US6089335A (en) * | 1998-12-16 | 2000-07-18 | Boart Longyear International Holdings, Inc. | Positive latch core barrel apparatus |
| NL1016545C2 (en) * | 2000-11-03 | 2002-05-07 | Fugro Eng Bv | A rotatable core drilling device and a rotatable core drilling system equipped with such a rotatable core drilling device. |
| JP2006299591A (en) * | 2005-04-19 | 2006-11-02 | Mitsubishi Materials Natural Resources Development Corp | Casing excavation and construction equipment |
| CN203559781U (en) * | 2013-09-22 | 2014-04-23 | 北京信远华油科技有限公司 | Combined type well wall coring instrument drill bit |
| WO2020023352A1 (en) * | 2018-07-24 | 2020-01-30 | Ojjo, Inc. | Threaded truss foundations and related systems, methods, and machines |
| WO2020133724A1 (en) * | 2018-12-26 | 2020-07-02 | 深圳大学 | Fidelity retaining type coring device for rock sample |
| CN109797749A (en) * | 2019-01-21 | 2019-05-24 | 中铁四局集团第三建设有限公司 | Underwater foundation pit construction device and construction method |
| CN209855713U (en) * | 2019-03-29 | 2019-12-27 | 臧万祥 | Professional rock drilling and taking device for rotary drilling rig |
| CN211173943U (en) * | 2019-12-16 | 2020-08-04 | 浙江交工集团股份有限公司 | Novel primary and secondary drill bit of rotary drilling rig |
| CN211737051U (en) * | 2020-03-24 | 2020-10-23 | 中铁隧道局集团有限公司 | Deviation-preventing rotary drilling bit and rotary drilling rig |
| AU2020101426A4 (en) * | 2020-06-17 | 2020-08-20 | Hebei Research Institute of Construction & Geotechnical Investigation Co., Ltd. | Anti-Deviation Rotary Drilling Tool for Karst Stratum and Drilling Method Thereof |
| CN214997456U (en) * | 2021-04-16 | 2021-12-03 | 江西省地质工程(集团)公司 | Rotary excavating rock-socketed double-cylinder type drill bit |
| CN215565741U (en) * | 2021-08-30 | 2022-01-18 | 中交路桥建设有限公司 | Rotary drilling and reaming drill bit capable of realizing multi-stage reaming and reaming equipment |
| CN217080373U (en) * | 2022-04-27 | 2022-07-29 | 中交一公局集团有限公司 | Cylindrical drill guider of rotary drilling drill |
| CN218265793U (en) * | 2022-08-03 | 2023-01-10 | 河北达夫重工有限公司 | Double-layer barrel drill |
| CN115637973A (en) * | 2022-10-20 | 2023-01-24 | 中交第一航务工程局有限公司 | Long pile casing sleeve-free rotary excavating hard cutting secant pile hole forming construction process |
| CN115726692A (en) * | 2022-11-18 | 2023-03-03 | 中铁大桥局集团有限公司 | Method for forming hole in inclined rock surface by rotary drilling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116696332A (en) | 2023-09-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109736702B (en) | Drilling platform for amphibious operation | |
| AU2012201012B2 (en) | Device for manufacturing a foundation for a mass located at height, associated method and assembly of the device and a jack-up platform | |
| US2939291A (en) | Anchoring system for floating drill structure | |
| US11719838B2 (en) | Array-type underwater apparatus and method for monitoring deformation of reservoir landslide | |
| CN111551309B (en) | Counterweight separable assembled type pore water pressure monitoring system and laying method thereof | |
| CN110630220B (en) | Vertical geological drilling hole wall tamping device and tamping method | |
| CN109577383A (en) | A kind of experimental rig and method of dynamic test suction anchor anti-pulling capacity | |
| US20230203944A1 (en) | Auto-collapsible pore pressure probe device and operating method thereof | |
| CN116696332B (en) | Composite drill bit accurate positioning device for rotary pile digger on barge | |
| CN100363561C (en) | Probe penetration implement for detecting and monitoring sea bed soil body | |
| CN117776016A (en) | Retraction device for towing type ocean profile measurement | |
| CN218973878U (en) | Rock soil sampling equipment convenient to collect | |
| CN111765943A (en) | Self-adaptive underground water level measuring equipment | |
| CN116559882A (en) | Auxiliary equipment and method for detecting sonar auxiliary pile foundation under karst geological condition | |
| CN116147568A (en) | Single-wire distributed multipoint displacement meter device and testing method | |
| JPH11100845A (en) | Floater type positioning device | |
| CN114440820B (en) | Landslide underwater deformation characteristic transfer monitoring device and method | |
| CN217786300U (en) | Device capable of realizing underwater and overwater precise positioning measurement | |
| KR102643486B1 (en) | Pre-piling underwater excavation device | |
| CN111364501A (en) | Offshore booster station jacket leveling construction process | |
| CN220953324U (en) | Device for detecting thickness and density of back-silted floating mud in tuning fork type seabed foundation trench | |
| CN112097734A (en) | Semi-submersible platform heave measuring device | |
| CN216049654U (en) | Split type buoy device for monitoring riverbed soil deformation | |
| CN215622578U (en) | Floating platform device applied to water geological static exploration | |
| CN221261769U (en) | Slope sliding early warning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |