CN106246099A - Spiral soil compaction down-the-hole embedding rock device and pile making method - Google Patents
Spiral soil compaction down-the-hole embedding rock device and pile making method Download PDFInfo
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- CN106246099A CN106246099A CN201610896649.5A CN201610896649A CN106246099A CN 106246099 A CN106246099 A CN 106246099A CN 201610896649 A CN201610896649 A CN 201610896649A CN 106246099 A CN106246099 A CN 106246099A
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- 239000002689 soil Substances 0.000 title claims abstract description 156
- 238000005056 compaction Methods 0.000 title claims abstract description 139
- 239000011435 rock Substances 0.000 title claims abstract description 95
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000005553 drilling Methods 0.000 claims abstract description 40
- 238000009527 percussion Methods 0.000 claims abstract description 20
- 239000003921 oil Substances 0.000 claims description 33
- 239000010720 hydraulic oil Substances 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 10
- 230000010412 perfusion Effects 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 5
- 238000005381 potential energy Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000002834 transmittance Methods 0.000 claims description 4
- 230000001737 promoting effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002002 slurry Substances 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
-
- 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
- E02D5/36—Concrete or concrete-like piles cast in position ; Apparatus for making same making without use of mouldpipes or other moulds
-
- 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
- E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
-
- 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
- E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
-
- 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
- E21B17/22—Rods or pipes with helical structure
-
- 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
- E21B7/003—Drilling with mechanical conveying means
- E21B7/005—Drilling with mechanical conveying means with helical conveying means
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Structural Engineering (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to spiral soil compaction down-the-hole embedding rock device and pile making method.Spiral soil compaction down-the-hole embedding rock device, is made up of gyroscope, standard soil compaction drilling tool, impacter and drill bit.Described gyroscope is arranged on the upper end of standard soil compaction drilling tool.Described standard soil compaction drilling tool and impacter are linked together by standard flange and upper connective plate.Described impacter and drill bit position by guiding spline between lower body and upper body, are connected into integrally in lower body, casing and upper body by bolt and flange.The percussion mechanism being arranged in impacter is flexibly connected with upper body；Inner tube II runs through impacter and drill bit.The pile making method of the invention, for the rock bearing capacity Pile more than 500Kpa, it is ensured that construction quality, improves efficiency of construction, meets energy-conserving and environment-protective requirement.
Description
Technical field
The invention relates to pile foundation construction field, particularly to one collection incompetent bed spiral soil compaction pore-forming, hard formation
Impact rotating pore-forming, pump guncreting pile spiral soil compaction down-the-hole embedding rock device and pile making method.
Background technology
In building pile foundation, embedded rock pile (rock bearing capacity is more than 500Kpa) occupies bigger share, existing pile foundation
In plinth construction equipment, how based on pneumatic down-hole hammer, manually digging hole also has certain market share.Stake footpath is not more than
Embedded rock pile many employings pneumatic down-hole hammer pore-forming of 800mm, recycles special equipment concrete perfusion pile.In construction pore-creating process
In, utilize the ballistic work of pneumatic down-hole hammer that hard rock volumetric fracture becomes landwaste shape, then by the high-pressure high-flow wind energy of air compressor machine
Broken landwaste is delivered to the outer earth's surface of stake holes, completes deslagging function.Pore forming process needs the wind energy of big flow, and air compressor machine consumes energy
Height, discharge simultaneously can produce substantial amounts of pollution, affect environment；Pore-forming is to complete by ballistic work, can produce vibration, particularly push up
Layer be broken ground and the rock-embedded pile hole containing gravel layer, undergauge, the phenomenon such as cave in easily occurs, causes constructing；In underground
The stratum that water is abundant, landwaste is deposited in water, causes deslagging difficulty, it is impossible to pore-forming.In construction filling process, the same stake of many employings
The long-spiral drilling machine in footpath completes.Utilize the device of long-spiral drilling machine pump pressure concrete perfusion, concrete is delivered in stake holes, after
Put steel reinforcement cage drilling pile.Stake holes more rich for subsoil water irrigates, many employing dedicated conduits facilities, and concrete is noted stake holes
The end, water in stake holes is discharged to ground surface simultaneously.No matter use which kind of method for filling, all can produce expense, add construction cost.
For the stake footpath embedded rock pile more than 800mm, because the aeratic hidden hole equipment purchasing expense of major diameter is high, construction Air Quantity Required is big, leads
Cause operating expenses is big, and pile cost is high, many employing manually digging hole pile-formation process.Artificial digging pile pore forming process, labor intensity is high,
Poor stability, the particularly geotechnical stability of hard rock top layer are poor, cannot construct in the area of rich groundwater, and perfusion uses conduit to set
Standby.Now build relevant system and limit use manually digging hole operation.
Summary of the invention
For the construction of embedded rock pile more than 500Kpa of the rock bearing capacity, common long-spiral drilling machine cannot complete independently, gas
There is again the problem of more deficiency in dynamic down-hole hammer and manually digging hole construction, the invention provides one to ensure construction quality, carries
High efficiency of construction, meets the spiral soil compaction down-the-hole embedding rock device of energy-conserving and environment-protective requirement.
The another object of the invention is to provide a kind of spiral soil compaction down-the-hole embedding rock pile making method.
The invention the technical scheme is that spiral soil compaction down-the-hole embedding rock device, gyroscope, standard soil compaction bore
Tool, impacter and drill bit composition.
Described standard soil compaction drilling tool: include standard flange, high-pressure oil pipe, soil compaction drilling tool blade, inner tube I and outer tube；Squeeze
Earth boring auger tool blade uniform pitch ground assembly welding is on outer tube, and inner tube I is installed within the outer tube and and outer coaxial tube.
Described impacter: include lower body, pin, percussion mechanism, casing, upper connective plate, inner tube II, soil compaction casing blade；Logical
Crossing pin lower body and casing to be fixed, install percussion mechanism in casing, inner tube II runs through percussion mechanism, under percussion mechanism one end is passed through
Closure plate is connected with lower body, and the other end is connected with the internal partition on casing；Soil compaction casing blade uniform pitch ground assembly welding on casing, under
Internal set guiding spline.High-pressure oil pipe is connected with percussion mechanism.
Described drill bit: include that apex point, fulcrum post, body, upper body, soil compaction drill bit bore sheet, otic placode and drill bit door-plate；Bolt
Being fixedly connected with body upper body, the upper end of upper body is provided with guiding external splines, guides spline pair with lower body composition, and drill bit is along guiding
Spline pair is made vertically movable；Outer surface of tube body installs soil compaction bit blades, and body lower end is provided with otic placode, and apex point is pacified by fulcrum post
Being contained on otic placode, apex point is provided with carbide button I and drill bit door-plate, and the bottom end of soil compaction bit blades is provided with carbide button II.
Described gyroscope is arranged on the upper end of standard soil compaction drilling tool.
Described standard soil compaction drilling tool and impacter are linked together by standard flange and upper connective plate.
Described impacter and drill bit position by guiding spline between lower body and upper body, by bolt and flange by lower body,
Casing and upper body are connected into one, and percussion mechanism is flexibly connected with upper body；Inner tube II runs through impacter and drill bit.
Above-mentioned spiral soil compaction down-the-hole embedding rock device, described percussion mechanism includes cylinder barrel, piston, guiding valve, spring, piston
Ante-chamber oil pipe, piston back cavity oil pipe and piston lumen oil pipe；Cylinder barrel, piston, lower plugging plate are sealed by bolt and sealing member composition
Body, spring one end acts on the upper end of piston, and the other end is bolted on the internal partition of casing, and bolt is by casing simultaneously
Be fixed together with cylinder barrel, guiding valve respectively be arranged on standard soil compaction drilling tool in and through standard flange and the hydraulic oil of upper connective plate
Pipe, piston ante-chamber oil pipe, piston lumen oil pipe and piston back cavity tubing seal UNICOM.
Above-mentioned spiral soil compaction down-the-hole embedding rock device, described standard soil compaction drilling tool is provided with gusset, gusset and outer tube and
Standard flange connects.
Above-mentioned spiral soil compaction down-the-hole embedding rock device, lower body is by bolt and lower plugging plate rigid attachment.
Above-mentioned spiral soil compaction down-the-hole embedding rock device, described body is provided with cylinder location.
Above-mentioned spiral soil compaction down-the-hole embedding rock device, is slidably matched between upper body and flange, slides and join between upper body and inner tube II
Close.
Above-mentioned spiral soil compaction down-the-hole embedding rock device, is provided with positioning key, by location between standard soil compaction drilling tool and impacter
Key positions, and standard flange, upper connective plate and positioning key are connected into one by bolt.
Above-mentioned spiral soil compaction down-the-hole embedding rock device, described soil compaction bit blades, soil compaction casing blade and soil compaction drilling tool
The cross section of blade is all trapezoidal；Wherein soil compaction brill is perfoliate is radially provided with breach and soil compaction skewback.
A kind of spiral soil compaction down-the-hole embedding rock pile making method, method is as follows:
1) by spiral soil compaction down-the-hole embedding rock device and screw pile machine unit head, hydraulic control system and impacter accumulator
Connect, after unloaded debugging is intact, be directed at embedded rock pile position；
2) spiral soil compaction down-the-hole embedding rock device is under the drive of screw pile machine unit head, and the soil compaction that turns clockwise is crept into into
Hole, until hard formation；During work, drill bit carries out soil compaction rotary-cut, and a part of soil body is extruded to stake holes wall, the remainder soil body with
Soil compaction bit blades, soil compaction casing blade and soil compaction and bore perfoliate upper spiral towards earth's surface transmission；
3) hard formation uses the broken rock pore-forming mode of impact rotating, and spiral soil compaction down-the-hole embedding rock device is along with clockwise rotation
Transferring to impact rotating break rock and creep into, until design socket length, stop impacter, device turns clockwise 2-3 minute in original place；
During work, utilize the weight of spiral soil compaction down-the-hole embedding rock device and the unit head being rotating to be compressed by impacter inner spring, start
Hydraulic control system, starts impacter, and piston ante-chamber oil pipe connected by guiding valve, and pressure oil, to piston ante-chamber fuel feeding, piston moves, pressure
Contracting spring, when piston stroking upward to certain position, hydraulic oil feeds back to guiding valve, makes guiding valve commutation connect with piston back cavity oil pipe,
Leading to hydraulic oil to piston back cavity, back cavity end area is more than ante-chamber end area, and piston moves down makees stroke movement, the gesture of spring release simultaneously
Can, strengthen impact energy, complete one-shot action；During work, piston is made under the effect of hydraulic oil and elastic potential energy of the spring
Bump campaign, hits upper body in drill bit, passes to each alloy cutting tooth by body, it is achieved broken rock pore-forming, broken
Landwaste is sent to ground surface by spiral soil compaction blade, it is achieved chip sends away immediately, in transmittance process, has part chip quilt
It is expressed to stake holes sidewall, enhances the density of hole wall；
4) perfusion of concrete uses pump pressure type, and turn clockwise spiral soil compaction down-the-hole embedding rock device slowly promoting, with
Time pump guncreting, promote speed less than 2.6m/min, until designed elevation；
5) utilize vibrator to set absolute altitude in produced steel reinforcement cage press-in embedded rock pile stake holes, complete once to construct.
Above-mentioned a kind of spiral soil compaction down-the-hole embedding rock pile making method, described embedded rock pile is that stake supporting course rock bearing capacity is big
In 500Kpa.
The invention provides the benefit that:
1, the invention, for different rock-soil layers, uses different one-tenth stake holes methods according to efficiency of construction.For embedding
The pile hole construction of rock stake soft rock soil layer takes spiral soil compaction mode, and the pile hole construction for embedded rock pile hard formation takes impact rotating
Mode, is so conducive to raising and the environmental protection and energy saving of efficiency of construction.A kind of device has two kinds of different forming hole methods, for reducing
Construction cost provides guarantee reliably.
2, the construction of spiral soil compaction down-the-hole embedded rock pile is collection incompetent bed spiral soil compaction pore-forming, hard formation impact rotating pore-forming,
Pump guncreting pile pile making method.For embedded rock pile, particularly stake supporting course rock bearing capacity is more than
The construction of the hard formation of 500Kpa, shows the strongest advantage.In the range of stake buried depth, soft rock soil layer uses big torque power headband
Dynamic spiral soil compaction down-the-hole embedding rock device carries out soil compaction drilling and forming hole, and one is increased pile laterally effective compressive stress, thus increases
The bearing capacity of stake；Two is soil compaction pore-forming, and loosened soil discharge capacity is few, decreases surflaes cost of transportation, protects environment simultaneously.Firmly
Rock stratum uses the broken rock pore-forming mode of impact rotating, and efficiency of breaking rock is high, broken landwaste can in time by helical blade by lower
Upper transmission, has part landwaste during transmitting and is expressed to stake holes sidewall, the density of further reinforced hole sidewall.Impact
Revolution fractured rock uses hydraulic impactor, makes full use of the hydraulic control system in screw pile machine, reduces equipment investment cost.
The perfusion of concrete uses pump pressure type, is pumped concrete perfusion, is not affected by subsoil water, execute while mentioning drilling rig
Work is simple, save time, expense is low, and quality of pile is reliable, and efficiency is high.Achieve embedded rock pile pore-forming and concrete perfusion complete by a set of facility
Become, greatly reduce construction cost.
3, spiral soil compaction down-the-hole embedded rock pile is the pile-type of energy-saving and emission-reduction, and pile bearing capacity is high, and surflaes discharge is few, it is not necessary to mud
Slurry retaining wall, impact shock noise is low, and efficiency of construction is high, and construction cost is low.Spiral soil compaction down-the-hole embedding rock device is that spiral soil compaction is dived
The construction of hole embedded rock pile provides guarantee reliably, makes full use of high pulling torque screw pile machine and carries out upgrading, and equipment investment is low.
Visible spiral soil compaction down-the-hole embedding rock device and pile making method thereof have extensive market prospect
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the invention.
Fig. 2 is the partial enlargement structural representation of the invention.
Fig. 3 is the invention soil compaction drilling tool blade front view.
Fig. 4 is the invention soil compaction attached view of drilling tool blade.
Fig. 5 is the invention soil compaction casing blade front view.
Fig. 6 is the invention soil compaction bit blades front view.
Fig. 7 is the invention hydraulic impactor control principle schematic diagram.
Fig. 8 is that the present invention creates spiral soil compaction hole Pile process schematic.
Detailed description of the invention
Embodiment 1
As shown in Fig. 1 Fig. 7, spiral soil compaction down-the-hole embedding rock device, by gyroscope (1), standard soil compaction drilling tool (2), impact
Device (3) and drill bit (4) composition.It is that bolt-connection becomes a rigid body by pin key torsion pass between each ingredient.During work, return
Turn and on device, connect big torque spiral power head device, complete the translation function of impacter hydraulic oil simultaneously.
Described standard soil compaction drilling tool (2): include standard flange (201), high-pressure oil pipe (202), soil compaction drilling tool blade
(203), inner tube I (204), outer tube (205) and gusset (206)；Soil compaction drilling tool blade (203) uniform pitch ground assembly welding is at outer tube
(205), on, it is interior and coaxial with outer tube (205) that inner tube I (204) is arranged on outer tube (205).Gusset (206) and outer tube (205) and mark
Quasi-flange (201) connects.
Described impacter (3): include lower body (301), pin (302), hexagon socket head cap screw I (303), percussion mechanism, casing
(305), hexagon socket head cap screw II (307), upper connective plate (309), inner tube II (310), soil compaction casing blade (313), lower body (301) lead to
Cross hexagon socket head cap screw I (303) and lower plugging plate (314) rigid attachment.Lower body (301) is by pin (302) and male-female engagement and casing
(305) fixing, lower body sets guiding spline in (301).Installing percussion mechanism in casing (305), inner tube II (310) runs through impact dress
Putting, percussion mechanism one end is connected with lower body (301) by lower plugging plate (314), the other end and the internal partition on casing (305)
(317) connect；Soil compaction casing blade (313) uniform pitch ground assembly welding is on casing (305).
Described percussion mechanism includes cylinder barrel (304), piston (306), guiding valve (308), spring (311), lower plugging plate
(314), hexagon socket head cap screw III (315), piston ante-chamber oil pipe (312), piston lumen oil pipe (318) and piston back cavity oil pipe
(316)；Cylinder barrel (304), piston (306), lower plugging plate (314) are by hexagon socket head cap screw III (315) and sealing member composition impacter
Seal, spring (311) one end acts on the upper end of piston, and the other end is fixed on casing by hexagon socket head cap screw II (307)
(305) on internal partition (317), providing the most downward thrust for piston (306), hexagon socket head cap screw II (307) will protect simultaneously
Cylinder (305) is fixed together with cylinder barrel (304), guiding valve (308) respectively be arranged in standard soil compaction drilling tool (2) and pass standard
The high-pressure oil pipe (202) of flange (201) and upper connective plate (309), piston ante-chamber oil pipe (312), piston lumen oil pipe (318) and work
Plug back cavity oil pipe (316) seals UNICOM.
Described drill bit (4): include apex point (401), fulcrum post (402), body (403), hexagon socket head cap screw IV (404),
Upper body (405), flange (406), soil compaction drill bit bore sheet (407), otic placode (408) and drill bit door-plate (410).Body sets on (403)
Cylinder is had to position (412).By hexagon socket head cap screw IV (404), upper body (405) are fixedly connected with body (403).Upper body (405) with
Flange is slidably matched between (406), uses dust-proof, sealed attachment.It is slidably matched between upper body (405) and inner tube II (310), uses anti-
Dirt, sealed attachment.The upper end of upper body (405) is provided with guiding external splines, guides spline pair, drill bit (4) edge with lower body (301) composition
Guide spline pair and make vertically movable；Body (403) outer surface installs soil compaction bit blades (407), and body (403) lower end is provided with four
Individual otic placode (408) rotates location for antitorque during apex point (401) boring.Wherein it is provided with fulcrum post (402) in two pieces of otic placode (408) holes
It is available for apex point (401) to rotate.Apex point (401) is arranged on otic placode (408) by fulcrum post (402), and apex point (401) is provided with conjunction
Gold tooth I and drill bit door-plate (410), the bottom end of soil compaction bit blades (407) is provided with carbide button II.
Described gyroscope (1) is arranged on the upper end of standard soil compaction drilling tool (2).
Being positioned by positioning key (6) between described standard soil compaction drilling tool (2) and impacter (3), outer-hexagonal bolt I (5) will
Standard flange (201), upper connective plate (309) and positioning key (6) are connected into one.
Described impacter (3) and drill bit (4) position, by outward by guiding spline between lower body (301) and upper body (405)
Lower body (301), casing (305) and upper body (405) are connected into one, inner tube II by hex bolts II (7) and flange (406)
(310) impacter (3) and drill bit (4) are run through.
The cross section of described soil compaction bit blades (407), soil compaction casing blade (313) and soil compaction drilling tool blade (203) is all
It is trapezoidal；Wherein soil compaction drilling tool blade (203) be radially provided with breach (207).
Embodiment 2
As shown in Figure 8, a kind of spiral soil compaction down-the-hole embedding rock pile making method, method is as follows:
1) levelling of the land, measures and puts a point sample, check.Utilize high pulling torque (output torque is at more than 150KN M) unit head
Screw pile machine, couples installation by related facilities such as concrete pump and spiral soil compaction down-the-hole embedding rock devices complete.Spiral is squeezed
Soil down-the-hole embedding rock device is connected with screw pile machine unit head and hydraulic control system, and the high pressure of percussion mechanism is into and out of oil pipe and liquid
The accumulator of pressure control system connects, and after unloaded debugging is intact, is directed at embedded rock pile position；Described embedded rock pile is stake supporting course rock
Bearing capacity is more than 500Kpa.Such as Fig. 8 (a).
2) spiral soil compaction down-the-hole embedding rock device is under the drive of screw pile machine unit head, and the soil compaction that turns clockwise is crept into into
Hole, until hard formation；During work, drill bit carries out soil compaction rotary-cut, and a part of soil body is extruded to stake holes wall, the remainder soil body with
Soil compaction bit blades, soil compaction casing blade and soil compaction and bore perfoliate upper spiral towards earth's surface transmission.Such as Fig. 8 (b).
3) hard formation uses the broken rock pore-forming mode of impact rotating, and spiral soil compaction down-the-hole embedding rock device is along with clockwise rotation
Transferring to impact rotating break rock and creep into, until design socket length, stop impacter, device turns clockwise 2-3 minute in original place；
During work, utilize the weight of spiral soil compaction down-the-hole embedding rock device and the unit head being rotating to be compressed by impacter inner spring, start
Hydraulic control system, starts impacter, and piston ante-chamber oil pipe connected by guiding valve, and pressure oil, to piston ante-chamber fuel feeding, piston moves, pressure
Contracting spring, when piston stroking upward to certain position, hydraulic oil feeds back to guiding valve, makes guiding valve commutation connect with piston back cavity oil pipe,
Piston back cavity leads to hydraulic oil, and back cavity end area is more than ante-chamber end area, and piston moves down makees stroke movement, the gesture of spring release simultaneously
Can, strengthen impact energy, complete one-shot action；During work, piston is made under the effect of hydraulic oil and elastic potential energy of the spring
Bump campaign, hits upper body in drill bit, passes to each alloy cutting tooth by body, it is achieved broken rock pore-forming, broken
Landwaste is sent to ground surface by spiral soil compaction blade, it is achieved chip sends away immediately, in transmittance process, has part chip quilt
It is expressed to stake holes sidewall, enhances the density of hole wall；Such as Fig. 8 (c).
4) perfusion of concrete uses pump pressure type, and turn clockwise spiral soil compaction down-the-hole embedding rock device slowly promoting, with
Time pump guncreting, promote speed less than 2.6m/min, until designed elevation；Such as Fig. 8 (d).
5) utilize vibrator to set absolute altitude in produced steel reinforcement cage press-in embedded rock pile stake holes, complete once to construct.As
Fig. 8 (e) (f).
The operation principle of the invention spiral soil compaction down-the-hole embedding rock device:
1, during device work, drill bit carries out soil compaction rotary-cut, and a part of soil body is extruded to stake holes wall, remainder soil body meeting
Along with the upper spiral of soil compaction bit blades transmits towards earth's surface, in transmitting procedure, owing to the cross section of various blades is trapezoidal
Structure, all has radial compression function to the soil body.The particularly blade on standard soil compaction drilling tool is provided with breach and soil compaction skewback, squeezes
Soil effect is the most notable.Along with uploading of loosened soil, becoming the most compacted compacting in stake holes side, after increasing pile, stake the most effectively extrudes
Stress, thus improve the side frictional resistance of stake, decrease loosened soil discharge capacity during pore-forming simultaneously.
2, impact rotating crumbling method is used effectively to break rock pore-forming.Hydraulic impactor control principle is as it is shown in fig. 7, slide
The right position of valve works, and pressure oil, to ante-chamber fuel feeding, piston retracts journey, compression spring, when piston stroking upward to certain position, and high pressure
Oil feeds back to guiding valve, makes the left position of guiding valve connect, and back cavity leads to hydraulic oil, owing to back cavity end area is more than ante-chamber end area, under piston
Stroke movement is made in shifting, the potential energy of spring release simultaneously, strengthens impact energy, completes one-shot action.During device busy, pass through
Impacter inner spring is compressed by the pressure of the drill, starts rotary power head and makes device be in rotation status, starts hydraulic oil pump and to impact
Device fuel feeding, piston starts to make bump campaign under the effect of hydraulic oil and elastic potential energy, hits upper body in drill bit, by pipe
Body passes to each alloy cutting tooth, it is achieved broken rock pore-forming.Broken landwaste is sent to ground surface by spiral soil compaction blade, real
Existing chip sends away immediately.In transmittance process, there is part chip to be extruded to stake holes sidewall, enhance the density of hole wall.
Claims (10)
1. spiral soil compaction down-the-hole embedding rock device, it is characterised in that: by gyroscope (1), standard soil compaction drilling tool (2), impacter (3) and
Drill bit (4) forms；
Described standard soil compaction drilling tool (2): include standard flange (201), high-pressure oil pipe (202), soil compaction drilling tool blade (203),
Inner tube I (204) and outer tube (205)；Soil compaction drilling tool blade (203) uniform pitch ground assembly welding is on outer tube (205), and inner tube I (204) is pacified
It is contained in outer tube (205) interior and coaxial with outer tube (205)；
Described impacter (3): include lower body (301), pin (302), percussion mechanism, casing (305), upper connective plate (309), inner tube
II (310), soil compaction casing blade (313)；By pin (302), lower body (301) and casing (305) are fixed, peace in casing (305)
Dress percussion mechanism, inner tube II (310) runs through percussion mechanism, and percussion mechanism one end is by lower plugging plate (314) with lower body (301) even
Connecing, the other end is connected with the internal partition (317) on casing (305)；Soil compaction casing blade (313) uniform pitch ground assembly welding is at casing
(305), on, lower body sets guiding spline in (301)；High-pressure oil pipe (202) is connected with percussion mechanism；
Described drill bit (4): include apex point (401), fulcrum post (402), body (403), upper body (405), soil compaction bit blades
(407), otic placode (408) and drill bit door-plate (410)；By bolt, upper body (405) are fixedly connected with body (403), upper body (405)
Upper end be provided with guiding external splines, with lower body (301) composition guide spline pair, drill bit (4) along guide spline pair make vertically movable；
Body (403) outer surface installs soil compaction bit blades (407), and body (403) lower end is provided with otic placode (408), and apex point (401) passes through
Fulcrum post (402) is arranged on otic placode (408), and apex point (401) is provided with carbide button I and drill bit door-plate (410), soil compaction drill bit leaf
The bottom end of sheet (407) is provided with carbide button II；
Described gyroscope (1) is arranged on the upper end of standard soil compaction drilling tool (2)；
Described standard soil compaction drilling tool (2) and impacter (3) are linked together by standard flange (201) and upper connective plate (309)；
Described impacter (3) and drill bit (4) position by guiding spline between lower body (301) and upper body (405), by bolt with
Lower body (301), casing (305) and upper body (405) are connected into one by flange (406), and percussion mechanism is movable with upper body (405) even
Connect；Inner tube II (310) runs through impacter (3) and drill bit (4).
Spiral soil compaction down-the-hole the most according to claim 1 embedding rock device, it is characterised in that: described percussion mechanism includes cylinder
Cylinder (304), piston (306), guiding valve (308), spring (311), lower plugging plate (314), piston ante-chamber oil pipe (312), piston back cavity
Oil pipe (316) and piston lumen oil pipe (318)；Cylinder barrel (304), piston (306), lower plugging plate (314) pass through bolt and sealing member
Composition seal, spring (311) one end acts on the upper end of piston, the other end be bolted on casing (305) interior every
On plate (317), casing (305) is fixed together by bolt with cylinder barrel (304) simultaneously, guiding valve (308) respectively be arranged on standard
In soil compaction drilling tool (2) and through standard flange (201) and the high-pressure oil pipe (202) of upper connective plate (309), piston ante-chamber oil pipe
(312), piston lumen oil pipe (318) and piston back cavity oil pipe (316) seal UNICOM.
Spiral soil compaction down-the-hole the most according to claim 1 embedding rock device, it is characterised in that: described standard soil compaction drilling tool
(2) being provided with gusset (206), gusset (206) is connected with outer tube (205) and standard flange (201).
Spiral soil compaction down-the-hole the most according to claim 1 embedding rock device, it is characterised in that: lower body (301) by bolt with
Lower plugging plate (314) rigid attachment.
Spiral soil compaction down-the-hole the most according to claim 1 embedding rock device, it is characterised in that: set on described body (403)
Cylinder is had to position (412).
Spiral soil compaction down-the-hole the most according to claim 1 embedding rock device, it is characterised in that: upper body (405) and flange (406)
Between be slidably matched, be slidably matched between upper body (405) and inner tube II (310).
Spiral soil compaction down-the-hole the most according to claim 1 embedding rock device, it is characterised in that: being provided with positioning key (6), standard is squeezed
Being positioned by positioning key (6) between earth boring auger tool (2) and impacter (3), bolt is by standard flange (201), upper connective plate (309) and location
Key (6) is connected into one.
Spiral soil compaction down-the-hole the most according to claim 1 embedding rock device, it is characterised in that: described soil compaction bit blades
(407), the cross section of soil compaction casing blade (313) and soil compaction drilling tool blade (203) is all trapezoidal；Wherein soil compaction drilling tool blade
(203) be radially provided with breach (208) and soil compaction skewback (209).
9. a spiral soil compaction down-the-hole embedding rock pile making method, it is characterised in that method is as follows:
1) by spiral soil compaction down-the-hole embedding rock device with screw pile machine unit head, hydraulic control system and impacter accumulator even
Connect, after unloaded debugging is intact, be directed at embedded rock pile position；
2) spiral soil compaction down-the-hole embedding rock device is under the drive of screw pile machine unit head, the soil compaction that turns clockwise drilling and forming hole,
Until hard formation；During work, drill bit carries out soil compaction rotary-cut, and a part of soil body is extruded to stake holes wall, the remainder soil body along with
Soil compaction bit blades, soil compaction casing blade and soil compaction are bored perfoliate upper spiral and are transmitted towards earth's surface；
3) hard formation uses the broken rock pore-forming mode of impact rotating, and spiral soil compaction down-the-hole embedding rock device is made along with clockwise rotation
Impact rotating breaks rock and creeps into, until design socket length, stops impacter, and device turns clockwise 2-3 minute in original place；Work
Time, utilize the weight of spiral soil compaction down-the-hole embedding rock device and the unit head rotated to be compressed by impacter inner spring, start impacter
Hydraulic control system, piston makees bump campaign under the effect of hydraulic oil and elastic potential energy of the spring, hits upper body in drill bit,
Passing to each alloy cutting tooth by body, it is achieved broken rock pore-forming, broken landwaste is sent to ground by spiral soil compaction blade
Surface, it is achieved chip sends away immediately, in transmittance process, has part chip to be extruded to stake holes sidewall, enhances hole wall
Density；
4) perfusion of concrete uses pump pressure type, and turn clockwise spiral soil compaction down-the-hole embedding rock device slowly promoting, pump simultaneously
Guncreting, promotes speed and is less than 2.6m/min, until designed elevation；
5) utilize vibrator to set absolute altitude in produced steel reinforcement cage press-in embedded rock pile stake holes, complete once to construct.
A kind of spiral soil compaction down-the-hole embedding rock pile making method the most according to claim 9, it is characterised in that described embedding rock
Stake is more than 500Kpa for stake supporting course rock bearing capacity.
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| CN108505957A (en) * | 2018-05-07 | 2018-09-07 | 上海广大基础工程有限公司 | A kind of reaming stirring drill tool combination |
| CN108612091A (en) * | 2017-03-06 | 2018-10-02 | 李海兰 | A kind of arc ground pile-forming apparatus of municipal administration |
| CN110306927A (en) * | 2019-07-09 | 2019-10-08 | 缙云松弛自动化科技有限公司 | A kind of recognizable stratum and the deep hole rig for preventing Drill Crack |
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| GB2611272A (en) * | 2020-07-15 | 2023-03-29 | Coretrax Americas Ltd | Hydraulic thruster |
| WO2022016023A3 (en) * | 2020-07-15 | 2022-02-17 | Mohawk Energy Ltd. | Hydraulic thruster |
| CN112377092A (en) * | 2020-11-17 | 2021-02-19 | 江西省水利科学研究院 | Hydraulic down-the-hole hammer |
| CN114541372A (en) * | 2022-03-25 | 2022-05-27 | 刘帅 | Soil-squeezing pore-forming and pile-forming method for screw pile |
| CN116241173A (en) * | 2023-05-09 | 2023-06-09 | 中铁第一勘察设计院集团有限公司 | Single power source impact rotary compaction drilling construction method and equipment |
| CN116241173B (en) * | 2023-05-09 | 2023-08-11 | 中铁第一勘察设计院集团有限公司 | Single power source impact rotary compaction drilling construction method and equipment |
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