CN114622822A - Long spiral air-entrapping device used in cohesive soil rock stratum and pouring pile-forming construction method - Google Patents
Long spiral air-entrapping device used in cohesive soil rock stratum and pouring pile-forming construction method Download PDFInfo
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- CN114622822A CN114622822A CN202210167076.8A CN202210167076A CN114622822A CN 114622822 A CN114622822 A CN 114622822A CN 202210167076 A CN202210167076 A CN 202210167076A CN 114622822 A CN114622822 A CN 114622822A
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- 239000002689 soil Substances 0.000 title claims abstract description 18
- 239000011435 rock Substances 0.000 title claims abstract description 17
- 238000010276 construction Methods 0.000 title claims abstract description 14
- 238000005553 drilling Methods 0.000 claims abstract description 31
- 230000007704 transition Effects 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims description 38
- 241001149930 Protura <class> Species 0.000 claims description 18
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 16
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 16
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 16
- 241001330002 Bambuseae Species 0.000 claims description 12
- 239000011425 bamboo Substances 0.000 claims description 12
- 230000003068 static effect Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 5
- 230000035515 penetration Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 6
- 238000005755 formation reaction Methods 0.000 claims 6
- 238000002347 injection Methods 0.000 claims 2
- 239000007924 injection Substances 0.000 claims 2
- 238000010030 laminating Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 2
- 241000209128 Bambusa Species 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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- 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
- E21B3/00—Rotary drilling
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/16—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using gaseous fluids
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- Earth Drilling (AREA)
Abstract
The utility model provides a long spiral air-entrapping device and a pouring pile-forming construction method in a cohesive soil rock stratum, which relate to the technical field of filling piles with the cohesive soil rock and comprise the following steps: the drilling machine comprises a drilling machine body, an air-entrapping transition piece, a spiral drill rod and a conical drill bit; the air compressor machine and the gas holder are installed in proper order to the one end of boring machine body, the other end of gas holder still is connected with gives vent to anger and violently manages to be linked together through the expansion hose with the air entrainment transition piece, the outside of air entrainment transition piece links to each other with boring machine body is fixed, the conical bit passes through threaded connection in the bottom of auger stem, and the welding of the top of auger stem has flange to flange bolted connection with the rig actuating lever bottom. Can blow off the muddy siltstone of adhesion on auger stem, breather pipe and bellows should not damage in addition, and the gas pocket on the cone bit should not block up yet, and still convenient clearance has solved the breather pipe and has cracked easily and block up, the problem that the cone bit should not clear up.
Description
Technical Field
The utility model relates to the technical field of filling a pile with cohesive soil rock, in particular to a long spiral air-filling device and a filling pile-forming construction method for a cohesive soil rock stratum.
Background
The long spiral drilling machine is used as a device for drilling in building construction, can drill a silt layer, soil, silt and a pebble layer generally due to the drilling construction of a softer stratum, and has the characteristics of high drilling speed, good drilling forming, high drilling efficiency, larger torque, stable operation, automatic locking of a spring pin, convenience and quickness in disassembly and assembly, good sealing property, high tensile strength, high pile forming quality and the like.
Long auger drilling machine is when drilling, because argillaceous siltstone viscidity is big, very easily leads to auger stem locking, and artifical clearance is very difficult simultaneously, through the air entrainment device who alternates from top to bottom in addition, is as application number: in the patent of CN202021250781.7, a long spiral hole-forming pouring construction corollary equipment is disclosed, in order to avoid the locking of argillaceous siltstone to the auger stem during the construction process, the auger stem is fixedly connected with the gas-filling rotary joint through a stem flange seat, a vent pipe is embedded and fixed at the outer side of the auger stem, and a cone bit is fixed at the bottom end of the auger stem. According to the utility model, the vent pipe is additionally arranged on the auger stem, and the high-pressure gas is introduced into the vent pipe through the gas-filling rotary joint, so that the viscous argillaceous siltstone can be blown down from the auger stem, and the condition that the argillaceous siltstone locks the auger stem and the footage is slow is further avoided.
However, above-mentioned a long auger stem air entrainment device for rig, air entrainment rotary joint and auger stem are fixed to be linked to each other, and at the drilling process, air entrainment rotary joint can follow long auger stem and enter into the stake hole, leads to telescopic hose's damage easily, and the breather pipe exposes in the long auger stem outside moreover, and breather pipe and stake hole contact lead to the breather pipe to break easily, and the bottom of breather pipe also blocks up very easily moreover, and cone bit and long auger stem structure as an organic whole also should not clear up.
Disclosure of Invention
In view of the above, the utility model provides a long spiral air-entrapping device and a pouring pile-forming construction method for a cohesive soil rock stratum, which can blow off the argillaceous siltstone adhered to a spiral drill rod, prevent the air pipe and the telescopic hose from being damaged, prevent the air hole on the conical drill bit from being blocked, and facilitate cleaning.
The utility model provides a long spiral air-entrapping device and a pouring pile-forming construction method in a cohesive soil rock stratum, which specifically comprise the following steps: the drilling machine comprises a drilling machine body, an air compressor, an air storage tank, an air-entrapping transition piece, a telescopic hose, a spiral drill rod and a conical drill bit;
air compressor machine and gas holder are installed in proper order to the one end of driller body, and the end of giving vent to anger of air compressor machine links to each other through the pipeline between the inlet end of gas holder, and installs the check valve on this pipeline, the other end of gas holder still is connected with gives vent to anger violently the pipe, and should give vent to anger and violently manage and install the solenoid valve to be linked together through the expansion hose with the air entrainment transition piece, the outside and the driller body of air entrainment transition piece are fixed continuous, montant on the auger stem is the tubular structure, and is equipped with the internal thread in the montant bottom side hole, the conical bit passes through threaded connection in the bottom of auger stem, and the top welding of auger stem has flange to with the flange bolted connection of rig actuating lever bottom on the driller body.
Optionally, the gas-filling transition piece comprises an outer fixed sleeve, an inner rotating sleeve, a mechanical seal movable ring and a mechanical seal static ring;
the inner part of the outer fixed sleeve is of a hollow structure, the upper end face and the lower end face of the inner side of the outer fixed sleeve are respectively and fixedly provided with a mechanical seal static ring, the upper end face and the lower end face of the inner rotating sleeve are respectively and fixedly provided with a mechanical seal movable ring, the inner rotating sleeve is arranged on the inner side of the outer fixed sleeve and is connected with the mechanical seal static ring in a sealing mode through the mechanical seal movable ring, a vent groove is formed between the inner ring wall of the outer fixed sleeve and the outer ring wall of the inner rotating sleeve, one end of the outer side of the outer fixed sleeve is further connected with an air inlet pipe, the inner side end of the air inlet pipe is inserted into the vent groove, and the outer side end of the air inlet pipe is connected with the air outlet transverse pipe through a telescopic hose.
Optionally, six groups of external connecting plates are respectively arranged at the upper end and the lower end of the outer side of the external fixing sleeve, and the external connecting plates are provided with bolt through holes and fixedly connected with the bottom end of the front side of the drill body through bolts in an inserting manner.
Optionally, four groups of key grooves are further arranged in the inner hole of the inner rotating sleeve and are slidably clamped with the drill driving rod through the key grooves, two groups of opposite L-shaped through holes are further formed in the inner rotating sleeve, the inner side ends of the L-shaped through holes are communicated with the vent grooves, six groups of threaded holes are formed in the outer side of the bottom end of the L-shaped through holes, and the air outlet pipe is connected with the outer side of the bottom end of the L-shaped through holes in a sealing mode through bolts.
Optionally, a sealing groove is formed in the outer side of the top end of the inner hole in the connecting flange, a threaded hole is formed in the sealing groove, a sealing cover is connected to the sealing groove through a hexagon socket head cap screw, a rubber sealing plate is pasted to the bottom of the sealing cover, and the top end of the sealing cover is lower than the top end face of the connecting flange by cm.
Optionally, the conical bit is formed by connecting two sets of half conical heads and two sets of semicircular thread section of thick bamboos, half conical head and semicircular thread section of thick bamboos formula structure as an organic whole, and semicircular thread section of thick bamboo establishes on half conical head top side, it has V type rubber strip to inlay respectively on the face of connection of half conical head, the bottom side outer end of semicircular thread section of thick bamboo is connected with two sets of connecting blocks respectively, and when two sets of half conical heads and two sets of semicircular thread section of thick bamboos laminate, the V type rubber strip on two sets of half conical heads is relative, and through alternate bolted connection on the connecting block, and two sets of semicircular thread section of thick bamboos constitute the thread section of thick bamboo and twist and connect in the hole of montant bottom side on auger stem.
Optionally, the outer side of the half cone heads is further provided with a spiral groove, after the two groups of half cone heads form the cone heads, the inner parts of the two groups of half cone heads are of a hollow structure and are provided with air outlets, the air outlets are of an obliquely upward structure from inside to outside, and the outer ends of the two groups of half cone heads are provided with the spiral grooves.
Optionally, still be equipped with breather pipe and deflector in the montant of auger stem, deflector fixed connection is in the bottom of montant, and the bottom of breather pipe alternates in the deflector and place in the screw thread section of thick bamboo that two sets of semicircle screw thread sections are constituteed, and the upper end of breather pipe is Z type structure to sealed the montant of wearing out upwards passes flange and the outlet duct links to each other through expansion hose.
Optionally, the construction steps are as follows:
1) an inner rotating sleeve on the gas-filling transition piece is slidably clamped on a drill driving rod through a key groove, is fixedly connected with the bottom end of the front side of the drill body through bolt penetration of a bolt through hole on an outer connecting plate, and is welded with a flange at the bottom of the drill driving rod;
2) communicating an upper air inlet pipe of the air-entrapping transition piece with an air outlet transverse pipe on the air storage tank through a telescopic hose;
3) the two groups of semi-conical heads are jointed with the two groups of semi-circular threaded cylinders in an abutting mode, the conical drill bit is assembled by inserting bolts on the connecting block in a fastening mode, and then the conical drill bit is screwed into an inner hole in the bottom side of the vertical rod on the spiral drill rod through the threaded cylinders;
4) connecting a sealing cover in a sealing groove at the top end of the spiral drill rod for sealing, connecting the spiral drill rod to a flange at the bottom of a driving rod of the drilling machine through a connecting flange at the top end, and communicating the top end of a vent pipe with the bottom end of an air outlet pipe through a flexible hose;
5) when drilling through the auger stem, the electromagnetic valve is installed on the horizontal pipe through opening to give vent to anger, makes compressed air in the gas holder enter into the cone bit through the breather pipe in, blows off the silty sand stone of adhesion on the auger stem.
Advantageous effects
According to the spiral gas filling device provided by the embodiments of the utility model, compared with the traditional spiral drill rod, the spiral gas filling device can blow away the muddy siltstone adhered to the spiral drill rod, the vent pipe and the telescopic hose are not easy to damage, the air hole in the conical drill bit is not easy to block, and the spiral gas filling device is convenient to clean.
In addition, set up air compressor machine and gas holder, be convenient for make the compressed air that the air compressor machine produced flow into the gas holder and save to connecting tube between air compressor machine and gas holder is to setting up the check valve, prevents the compressed air backward flow in the gas holder, causes the damage to the air compressor machine, and sets up the solenoid valve on violently managing in the giving vent to anger of gas holder, is convenient for open when the auger stem lifts up slightly, thereby blows off the argillaceous siltstone on the auger stem.
Furthermore, through setting up the air entrainment transition piece, be convenient for link to each other with the rig through outer even board, avoid the air entrainment transition piece to follow auger stem and enter into the stake hole, and then prevent the damage of bellows, and simultaneously, through arranging the breather pipe in the montant on the auger stem, can protect the breather pipe, prevent at the drilling in-process, the breather pipe rubs with stake hole inside and damages, simultaneously through sealing up the montant top, prevent that the compressed air that the breather pipe flows out from passing through the auger stem top and flowing out, can make to form the high-pressure gas chamber in the auger stem inner tube structure, and then can prevent the venthole jam, and can be convenient for inspect auger stem's montant, in case take place gas leakage, auger stem's montant wearing and tearing are serious, need to change.
In addition, through set up helicla flute and slant ascending venthole on conical drill, the helicla flute can improve the efficiency of drilling, and slant ascending venthole should not block up in decurrent drilling yet, and secondly conical drill is removable assecmbly structure, is convenient for unpack apart conical drill, clears up the venthole.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
The drawings in the following description relate to some embodiments of the utility model only and are not intended to limit the utility model.
In the drawings:
FIG. 1 shows a schematic diagram of the overall structure according to an embodiment of the utility model;
FIG. 2 shows an enlarged schematic view at A in FIG. 1 according to an embodiment of the present invention;
FIG. 3 illustrates a schematic side-up configuration of FIG. 1, in accordance with an embodiment of the present invention;
FIG. 4 is an enlarged schematic view of the structure at B in FIG. 3 according to an embodiment of the present invention;
FIG. 5 shows a schematic view of an integral connection structure of a gas-filled transition piece and a spiral drill rod with a cut-away lower end according to an embodiment of the utility model;
FIG. 6 is an enlarged schematic view of the structure of FIG. 5 at C according to an embodiment of the present invention;
FIG. 7 illustrates an enlarged structural view at D in FIG. 5 according to an embodiment of the present invention;
FIG. 8 shows a schematic structural view of an air entrainment transition piece in an embodiment in accordance with the utility model;
fig. 9 is a schematic structural view of the outer fixing sleeve of fig. 8 with one end cut away according to the embodiment of the present invention;
FIG. 10 is a schematic view of the auger tip seal cap removed in accordance with an embodiment of the present invention;
FIG. 11 illustrates a schematic disconnected cone drill bit according to an embodiment of the present invention.
List of reference numerals
1. A drill body; 101. a drill drive rod; 2. an air compressor; 3. a gas storage tank; 301. a transverse air outlet pipe; 4. an air entrainment transition piece; 401. an outer fixing sleeve; 4011. an outer connecting plate; 4012. an air inlet pipe; 402. an inner rotating sleeve; 4021. a keyway; 4022. an L-shaped through hole; 403. a mechanical seal movable ring; 404. a mechanical seal stationary ring; 405. an air outlet pipe; 5. a flexible hose; 6. a auger stem; 601. a connecting flange; 6011. sealing the groove; 602. a sealing cover; 603. a breather pipe; 604. a guide plate; 7. a conical drill bit; 701. a half cone head; 7011. a V-shaped rubber strip; 7012. a helical groove; 7013. an air outlet; 702. a semi-circular threaded cylinder; 7021. and (4) connecting the blocks.
Detailed Description
In order to make the objects, aspects and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. Unless otherwise indicated, terms used herein have the ordinary meaning in the art. Like reference numerals in the drawings denote like elements.
Example (b): please refer to fig. 1 to fig. 11:
the utility model provides a long spiral air-entrapping device and a pouring pile-forming construction method in a cohesive soil rock stratum, which comprise the following steps: the drilling machine comprises a drilling machine body 1, an air compressor 2, an air storage tank 3, an air-entrapping transition piece 4, a flexible hose 5, a spiral drill rod 6 and a conical drill bit 7;
an air compressor 2 and an air storage tank 3 are sequentially installed at one end of a drill body 1, an air outlet end of the air compressor 2 is connected with an air inlet end of the air storage tank 3 through a pipeline, a one-way valve is installed on the pipeline to prevent backflow of compressed air in the air storage tank and damage to the air compressor, an air outlet transverse pipe 301 is further connected to the other end of the air storage tank 3, an electromagnetic valve is installed on the air outlet transverse pipe 301 and communicated with an air-entrapping transition piece 4 through a telescopic hose 5 to control outflow of the compressed air in the air storage tank 3 through the electromagnetic valve, the outer side of the air-entrapping transition piece 4 is fixedly connected with the drill body 1, a vertical rod on the spiral drill rod 6 is of a tubular structure, an internal thread is arranged in an inner hole at the bottom side of the vertical rod, a conical drill bit 7 is connected to the bottom of the spiral drill rod 6 through a thread, a connecting flange 601 is welded at the top end of the spiral drill rod 6 and is connected with a flange bolt at the bottom end of a drill driving rod 101 on the drill body 1, wherein the working pressure of the air compressor 2 is 0.8 Mpa.
Further, according to an embodiment of the present invention, as shown in fig. 8 and 9, the air entrainment transition piece 4 includes an outer fixed sleeve 401, an inner rotating sleeve 402, a mechanical seal moving ring 403, and a mechanical seal stationary ring 404;
the inner part of the outer fixing sleeve 401 is of a hollow structure, the upper end face and the lower end face of the inner side of the outer fixing sleeve are respectively and fixedly provided with a mechanical seal static ring 404, the upper end face and the lower end face of the inner rotating sleeve 402 are respectively and fixedly provided with a mechanical seal rotating ring 403, the inner rotating sleeve 402 is arranged on the inner side of the outer fixing sleeve 401 and is connected with the mechanical seal static ring 404 in a sealing mode through the mechanical seal rotating ring 403, a vent groove is formed between the inner ring wall of the outer fixing sleeve 401 and the outer ring wall of the inner rotating sleeve 402, one end of the outer side of the outer fixing sleeve 401 is further connected with an air inlet pipe 4012, the inner end of the air inlet pipe 4012 is inserted into the vent groove, the outer end of the outer side of the outer fixing sleeve is connected with the air outlet transverse pipe 301 through a telescopic hose 5, when the inner rotating sleeve 402 rotates, the inner rotating sleeve can be sealed between the mechanical seal rotating ring 403 and the mechanical seal static ring 404 and the outer fixing sleeve 401, and compressed air flowing into the vent groove can not be leaked.
In addition, according to the embodiment of the utility model, as shown in fig. 4, six groups of external connecting plates 4011 are respectively arranged at the upper end and the lower end of the outer side of the external fixing sleeve 401, and the external connecting plates 4011 are provided with bolt through holes and fixedly connected with the bottom end of the front side of the drill body 1 through bolt insertion, so that the external connecting plates 4011 are conveniently connected with the drill 1, the gas-filling transition piece 4 is prevented from entering a pile hole along with the auger stem 6, and the telescopic hose 5 is prevented from being damaged.
In addition, according to the embodiment of the present invention, as shown in fig. 4 and 9, four sets of key slots 4021 are further disposed in the inner hole of the inner rotating sleeve 402, and are slidably clamped with the drill driving rod 101 through the key slots 4021, two sets of opposite L-shaped through holes 4022 are further disposed on the inner rotating sleeve 402, the inner side end of each L-shaped through hole 4022 is communicated with the ventilation slot, six sets of threaded holes are disposed on the outer side of the bottom end, and the air outlet pipe 405 is hermetically connected through a bolt, so that when the drill driving rod 101 drives the auger stem 6 to drill a hole, the drill driving rod 101 can drive the inner rotating sleeve 402 to rotate through the four sets of key slots 4021, and further, the air outlet pipe 405 can synchronously rotate with the ventilation pipe 603.
In addition, according to the embodiment of the present invention, as shown in fig. 10, a sealing groove 6011 is disposed on an outer side of a top end of an inner hole of the connecting flange 601, the sealing groove 6011 is internally provided with a threaded hole, and is connected with a sealing cover 602 through a hexagon socket head cap, a rubber sealing plate is adhered to a bottom of the sealing cover 602, and a top end of the sealing cover is 1cm lower than a top end surface of the connecting flange 601, so that a tubular top end inside a vertical rod on the auger stem 6 is sealed by the sealing cover 602, and compressed air flowing out from the vent pipe 603 is prevented from flowing out through the top end of the auger stem 6, so that a high-pressure gas cavity is formed in the tubular structure inside the auger stem 6, and further, the vent hole 7013 is prevented from being blocked, and the vertical rod of the auger stem 6 can be checked conveniently, and once gas leakage occurs, that the vertical rod of the auger stem 6 is worn seriously and needs to be replaced.
In addition, according to the embodiment of the present invention, as shown in fig. 2, 7 and 11, the tapered drill 7 is formed by connecting two sets of half cone heads 701 and two sets of half threaded cylinders 702, the half cone heads 701 and the half threaded cylinders 702 are of an integral structure, the half threaded cylinders 702 are disposed on the top sides of the half cone heads 701, V-shaped rubber strips 7011 are respectively embedded on the connecting surfaces of the half cone heads 701, two sets of connecting blocks 7021 are respectively connected to the outer ends of the bottom sides of the half threaded cylinders 702, when the two sets of half cone heads 701 are attached to the two sets of half threaded cylinders 702, the V-shaped rubber strips 7011 on the two sets of half cone heads 701 are opposite to each other and are connected by inserting bolts on the connecting blocks 7021, the two sets of half threaded cylinders 702 form threaded cylinders and are screwed into inner holes on the bottom sides of the vertical rods 6, the outer sides of the half cone heads 701 are further provided with spiral grooves 7012, after the two sets of half cone heads form cone heads, the inner portions thereof are of hollow structures and are provided with air outlet holes 7013, and the venthole 7013 is from inside to outside to be the structure that inclines upward, and in the outer end was equipped with the helicla flute 7012, in the drilling, the helicla flute 7012 can improve the efficiency of drilling, and ascending venthole 7013 in the slant should not block up in the drilling downwards in addition, and conical bit 7 is removable assecmbly structure in addition, is convenient for unpack apart conical bit 7, clears up venthole 7013.
In addition, according to the embodiment of the present invention, as shown in fig. 4, 6 and 7, a vent pipe 603 and a guide plate 604 are further disposed in the vertical rod of the auger stem 6, the guide plate 604 is fixedly connected to the bottom end of the vertical rod, the bottom end of the vent pipe 603 is inserted into the guide plate 604 and placed in a threaded cylinder formed by two sets of semicircular threaded cylinders 702, the upper end of the vent pipe 603 is Z-shaped, and penetrates through the vertical rod in a sealing manner and upwards penetrates through the connecting flange 601 to be connected with the vent pipe 405 through the flexible hose 5, so that the bottom end of the vent pipe 603 is conveniently clamped by the guide plate 604, the vent pipe 603 is prevented from being not positioned in the vertical rod of the auger stem 6, and secondly, when the auger stem 6 drills downwards, the flexible hose 5 can ensure that the vent pipe 405 is connected with the vent pipe 603.
The specific use mode and function of the embodiment are as follows: in the utility model, an inner rotating sleeve 402 on an air-entrapping transition piece 4 is slidably clamped on a drill driving rod 101 through a key groove 4021, is fixedly connected with the bottom end of the front side of a drill body 1 through bolt penetration through a bolt through hole on an outer connecting plate 4011, and is welded with a flange at the bottom of the drill driving rod 101; an upper air inlet pipe 4012 of the air-entrapping transition piece 4 is communicated with an air outlet transverse pipe 301 on the air storage tank 3 through an expansion hose 5, so that the air-entrapping transition piece 4 is prevented from entering a pile hole along with the auger stem 6, and further the expansion hose 5 is prevented from being damaged; attaching and butting the two groups of semi-conical heads 701 and the two groups of semi-circular threaded cylinders 702, fastening and assembling a conical drill bit 7 by inserting bolts on a connecting block 7021, and screwing the conical drill bit 7 in an inner hole at the bottom side of a vertical rod on the spiral drill rod 6 through the threaded cylinders; a sealing cover 602 is connected in a sealing groove 6011 at the top end of the auger stem 6 for sealing, the auger stem 6 is connected to a flange at the bottom of a driving rod 101 of the drilling machine through a connecting flange 601 at the top end, and the top end of a vent pipe 603 is communicated with the bottom end of an air outlet pipe 405 through a telescopic hose 5; when the auger stem 6 is used for drilling, after a certain time of drilling, the auger stem 6 is lifted up slightly, and the electromagnetic valve is installed on the transverse vent pipe 301 by opening, so that compressed air in the air storage tank enters the conical drill bit 7 through the vent pipe 603, and the argillaceous siltstone adhered to the auger stem 6 is blown off.
Finally, it should be noted that, when describing the positions of the components and the matching relationship therebetween, the present invention is usually illustrated by one/a pair of components, however, it should be understood by those skilled in the art that such positions, matching relationship, etc. are also applicable to other/other pairs of components.
The above description is intended to be illustrative of the present invention and is not intended to limit the scope of the utility model, which is defined by the appended claims.
Claims (9)
1. A long spiral air-entrapping device and a pouring pile-forming construction method in a cohesive soil rock stratum are characterized by comprising the following steps: the drilling machine comprises a drilling machine body (1), an air compressor (2), an air storage tank (3), an air-entrapping transition piece (4), a flexible hose (5), a spiral drill rod (6) and a conical drill bit (7);
one end of the drill body (1) is sequentially provided with an air compressor (2) and an air storage tank (3), the air outlet end of the air compressor (2) is connected with the air inlet end of the air storage tank (3) through a pipeline, a one-way valve is arranged on the pipeline, the other end of the gas storage tank (3) is also connected with a transverse gas outlet pipe (301), an electromagnetic valve is arranged on the transverse gas outlet pipe (301), and is communicated with an air-entrapping transition piece (4) through a flexible hose (5), the outer side of the air-entrapping transition piece (4) is fixedly connected with a drill body (1), a vertical rod on the spiral drill rod (6) is of a tubular structure, an inner thread is arranged in an inner hole at the bottom side of the vertical rod, the conical drill bit (7) is connected to the bottom of the spiral drill rod (6) through a thread, a connecting flange (601) is welded at the top end of the spiral drill rod (6), and is connected with a flange bolt at the bottom end of a drill driving rod (101) on the drill body (1).
2. The device for long spiral gas injection in a clayey soil rock formation of claim 1, wherein: the gas-filling transition piece (4) comprises an outer fixed sleeve (401), an inner rotating sleeve (402), a mechanical seal movable ring (403) and a mechanical seal static ring (404);
the inner part of the outer fixing sleeve (401) is of a hollow structure, the upper end face and the lower end face of the inner side of the outer fixing sleeve are respectively and fixedly provided with a mechanical seal static ring (404), the upper end face and the lower end face of the inner rotating sleeve (402) are respectively and fixedly provided with a mechanical seal rotating ring (403), the inner rotating sleeve (402) is installed on the inner side of the outer fixing sleeve (401) and is connected with the mechanical seal static ring (404) in a sealing mode through the mechanical seal rotating ring (403), a vent groove is formed between the inner ring wall of the outer fixing sleeve (401) and the outer ring wall of the inner rotating sleeve (402), one end of the outer side of the outer fixing sleeve (401) is further connected with an air inlet pipe (4012), the inner side end of the air inlet pipe (4012) is inserted into the vent groove, and the outer side end of the air outlet transverse pipe (301) is connected through a telescopic hose (5).
3. A long spiral gas-filling device for clayey soil rock formations as claimed in claim 2, wherein: six groups of external connecting plates (4011) are respectively arranged at the upper end and the lower end of the outer side of the external fixing sleeve (401), bolt through holes are formed in the external connecting plates (4011), and the external connecting plates are fixedly connected with the bottom end of the front side of the drilling machine body (1) through bolt insertion.
4. A long spiral gas-filling device for clayey soil rock formations as claimed in claim 2, wherein: four groups of key grooves (4021) are further arranged in an inner hole of the inner rotating sleeve (402) and are slidably clamped with the drill driving rod (101) through the key grooves (4021), two groups of opposite L-shaped through holes (4022) are further arranged on the inner rotating sleeve (402), the inner side ends of the L-shaped through holes (4022) are communicated with the vent grooves, and six groups of threaded holes are arranged on the outer side of the bottom end and are hermetically connected with an air outlet pipe (405) through bolts.
5. The long spiral gas-filling device for the cohesive soil rock formation of claim 1, wherein: a sealing groove (6011) is formed in the outer side of the top end of an inner hole in the connecting flange (601), a threaded hole is formed in the sealing groove (6011), a sealing cover (602) is connected through an inner hexagonal bolt, a rubber sealing plate is adhered to the bottom of the sealing cover (602), and the top end of the sealing cover is 1cm lower than the top end face of the connecting flange (601).
6. The device for long spiral gas injection in a clayey soil rock formation of claim 4, wherein: conical bit (7) are formed by connecting two sets of half conical heads (701) and two sets of semicircle screw thread section of thick bamboo (702), half conical head (701) and semicircle screw thread section of thick bamboo (702) formula structure as an organic whole, and semicircle screw thread section of thick bamboo (702) are established on half conical head (701) top side, it has V type rubber strip (7011) to inlay respectively on the connection face of half conical head (701), the bottom side outer end of semicircle screw thread section of thick bamboo (702) is connected with two sets of connecting blocks (7021) respectively, and when two sets of half conical heads (701) and two sets of semicircle screw thread section of thick bamboo (702) laminating, V type rubber strip (7011) on two sets of half conical heads (701) are relative, and through alternate bolted connection on connecting block (7021), and two sets of semicircle screw thread section of thick bamboo (702) constitute the screw thread section of thick bamboo and twist and connect in the hole of montant bottom side on auger stem (6).
7. The long spiral gas filling device and the pouring pile-forming construction method for the cohesive soil rock stratum as claimed in claim 6, wherein: the outer side of the half cone heads (701) is also provided with a spiral groove (7012), after the cone heads are formed by the two groups of half cone heads (701), the inner part of the cone heads is of a hollow structure and is provided with an air outlet hole (7013), the air outlet hole (7013) is of an obliquely upward structure from inside to outside, and the outer end of the cone head is provided with the spiral groove (7012).
8. The long spiral gas-filling device for the cohesive soil rock formation of claim 6, wherein: still be equipped with breather pipe (603) and deflector (604) in the montant of auger stem (6), deflector (604) fixed connection is in the bottom of montant, and the bottom of breather pipe (603) alternates in deflector (604) and places in the screw thread section of thick bamboo that two sets of semicircle screw thread sections (702) are constituteed, and the upper end of breather pipe (603) is Z type structure to it upwards passes flange (601) and outlet duct (405) and links to each other through expansion hose (5) to seal to wear out the montant.
9. The method of claim 1, wherein the method comprises the steps of: the construction steps are as follows:
1) an inner rotating sleeve (402) on the air-entrapping transition piece (4) is slidably clamped on the drill driving rod (101) through a key groove (4021), is fixedly connected with the bottom end of the front side of the drill body (1) through bolt penetration of a bolt through hole on an outer connecting plate (4011), and is welded with a flange at the bottom of the drill driving rod (101);
2) an upper air inlet pipe (4012) of the air-entrapping transition piece (4) is communicated with an air outlet transverse pipe (301) on the air storage tank (3) through a telescopic hose (5);
3) the two groups of semi-conical heads (701) are attached to and butted with the two groups of semi-circular threaded cylinders (702), the conical drill bit (7) is assembled by inserting bolts on the connecting block (7021) in a fastening mode, and then the conical drill bit (7) is screwed in an inner hole in the bottom side of the vertical rod on the spiral drill rod (6) through the threaded cylinders;
4) a sealing cover (602) is connected in a sealing groove (6011) at the top end of the auger stem (6) for sealing, the auger stem (6) is connected to a flange at the bottom of a driving rod (101) of the drilling machine through a connecting flange (601) at the top end, and the top end of a vent pipe (603) is communicated with the bottom end of an air outlet pipe (405) through a flexible hose (5);
5) when the spiral drill rod (6) is used for drilling, the electromagnetic valve is installed on the transverse air outlet pipe (301) by opening, so that compressed air in the air storage tank enters the conical drill bit (7) through the air vent pipe (603), and the argillaceous siltstone adhered to the spiral drill rod (6) is blown away.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210167076.8A CN114622822A (en) | 2022-02-23 | 2022-02-23 | Long spiral air-entrapping device used in cohesive soil rock stratum and pouring pile-forming construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210167076.8A CN114622822A (en) | 2022-02-23 | 2022-02-23 | Long spiral air-entrapping device used in cohesive soil rock stratum and pouring pile-forming construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114622822A true CN114622822A (en) | 2022-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210167076.8A Pending CN114622822A (en) | 2022-02-23 | 2022-02-23 | Long spiral air-entrapping device used in cohesive soil rock stratum and pouring pile-forming construction method |
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| Country | Link |
|---|---|
| CN (1) | CN114622822A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115788288A (en) * | 2022-11-28 | 2023-03-14 | 青岛地质工程勘察院(青岛地质勘查开发局) | Long spiral drilling machine assisting drilling through high-pressure gas |
-
2022
- 2022-02-23 CN CN202210167076.8A patent/CN114622822A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115788288A (en) * | 2022-11-28 | 2023-03-14 | 青岛地质工程勘察院(青岛地质勘查开发局) | Long spiral drilling machine assisting drilling through high-pressure gas |
| CN115788288B (en) * | 2022-11-28 | 2023-10-20 | 青岛地质工程勘察院(青岛地质勘查开发局) | Long spiral drilling machine through high-pressure gas auxiliary drilling |
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