CN112727350A - Using method of drill rod suspension type down-the-hole hammer drill and down-the-hole hammer drill - Google Patents
Using method of drill rod suspension type down-the-hole hammer drill and down-the-hole hammer drill Download PDFInfo
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- CN112727350A CN112727350A CN202011624669.XA CN202011624669A CN112727350A CN 112727350 A CN112727350 A CN 112727350A CN 202011624669 A CN202011624669 A CN 202011624669A CN 112727350 A CN112727350 A CN 112727350A
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- hole hammer
- drill
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- hole
- drill rod
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- 239000000725 suspension Substances 0.000 title claims abstract description 16
- 238000005553 drilling Methods 0.000 claims abstract description 119
- 239000002893 slag Substances 0.000 claims abstract description 63
- 239000002002 slurry Substances 0.000 claims abstract description 13
- 239000011435 rock Substances 0.000 claims abstract description 12
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000002965 rope Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000010276 construction Methods 0.000 description 18
- 230000005484 gravity Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 210000001513 Elbow Anatomy 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000001681 protective Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B4/06—Down-hole impacting means, e.g. hammers
- E21B4/14—Fluid operated hammers
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/02—Rod or cable suspensions
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Abstract
The invention discloses a using method of a drill rod suspension type down-the-hole hammer drill. The method comprises the following steps: assembling; step two: hoisting; step three: drilling; clamping the drill rod and a wellhead chuck to provide reaction torque for the rotary driving mechanism; starting the rotary driving mechanism to drive the cluster down-the-hole hammer to rotate; starting the cluster down-the-hole hammer to impact rock drilling, discharging drilling slag, and realizing the drilling of the down-the-hole hammer on the full section of the foundation; and the drill rod is lowered while drilling the drill head until drilling is completed. The invention overcomes the defects that the down-the-hole hammer drill in the prior art has high manufacturing cost, small drilling diameter, too large vibration force and easy hole collapse, a pile casing is required to follow, and a large-diameter ultra-deep covering layer rock-entering drilling pile cannot be constructed; the device is simple and light, the drilling machine has no main machine, the manufacturing cost is greatly reduced, the slurry retaining wall is adopted, the retaining cylinder is not required to follow, and the ultra-large diameter rock entering pile hole of the ultra-deep covering layer can be constructed. The invention also discloses a drill rod suspension type down-the-hole hammer drill.
Description
Technical Field
The invention relates to the technical field of a hidden cluster hole hammer drill, in particular to a using method of a drill rod suspension type hidden hole hammer drill. The invention also discloses the drill rod suspension type down-the-hole hammer drill.
Background
The existing down-the-hole hammer drilling machine is a large rotary drilling machine and a double-spiral drilling machine which are driven to rotate, and has the defects of high equipment manufacturing cost, small drilling diameter (generally not more than 1 meter in diameter), too large vibration force, follow-up of a protective cylinder and incapability of constructing deep covering rock-entering drilling piles.
Therefore, there is a need to develop a down-the-hole hammer drill which has the advantages of low manufacturing cost, large diameter, high construction speed and low cost and can construct a large-diameter ultra-deep overburden rock-entering drilling pile.
Disclosure of Invention
The invention aims to provide a using method of a drill rod suspension type down-the-hole hammer drill, which is high in construction speed and low in cost.
The second purpose of the invention is to provide a drill rod suspension type down-the-hole hammer drill which is a basement rock soil drilling machine, the device of the invention is simple, the manufacturing cost is low, and the drill rod suspension type down-the-hole hammer drill can be used for constructing large-diameter ultra-deep overburden rock-entering drill holes; the defects that the equipment in the prior art is high in manufacturing cost, small in drilling diameter and incapable of constructing ultra-deep overburden rock-entering drilled piles are overcome.
In order to achieve the first object of the present invention, the technical solution of the present invention is: the using method of the drill rod suspension type down-the-hole hammer drill is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
the method comprises the following steps: assembling;
communicating the deslagging tube with the drill pipe and a ground mud treatment system;
communicating the high pressure medium conduit or cable with the rotary faucet and a surface power plant;
step two: hoisting;
the crane suspends the drill rod and other drilling tools to a drilling station;
step three: drilling;
clamping the drill rod and a wellhead chuck to provide reaction torque for the rotary driving mechanism;
starting the rotary driving mechanism to drive the cluster down-the-hole hammer to rotate;
starting the cluster down-the-hole hammer to impact rock drilling, discharging drilling slag, and realizing the drilling of the down-the-hole hammer on the full section of the foundation;
and the drill rod is lowered while drilling the drill head until drilling is completed.
In the technical scheme, in the third step, when the drilled hole is a wet hole, the exhaust of the cluster down-the-hole hammer is communicated with the slag suction pipe to form mud gas lift reverse circulation slag discharge;
when the drilled hole is a dry hole without water, an air injection and suction device is arranged in the slag suction pipe, and high-pressure air is introduced to form air reverse circulation slag removal;
when a shallow hole with a hole on the ground is drilled, an air or slurry injection and suction device is arranged in the slag suction pipe to form reverse circulation slag removal.
In order to achieve the second object of the present invention, the technical solution of the present invention is: a drill rod suspension type down-the-hole hammer drill is characterized in that: the device comprises a cluster down-the-hole hammer, a wellhead chuck, a rotary driving mechanism, a drill rod, a high-pressure medium pipeline or cable, a slag discharge pipe, a crane, a rotary tap, a high-pressure medium pipeline or cable in a drilling tool and a slag suction pipe;
the crane wire rope suspends the drill rod and other drilling tools;
the rotary driving mechanism and the rotary tap are arranged between the drill rod and the cluster down-the-hole hammer;
the drill rod penetrates through the wellhead chuck to move up and down; can not rotate;
the high-pressure medium pipeline or the cable is connected with the rotary faucet and the rotary driving mechanism;
the high-pressure medium pipeline or cable in the drilling tool and the slag suction pipe connect the cluster down-the-hole hammer and the rotary tap;
in the technical scheme, each down-the-hole hammer on the cluster down-the-hole hammer is provided with a closed outer sleeve, the down-the-hole hammer is collected to exhaust and discharge the exhaust into the slag suction pipe, and no exhaust hole is arranged at the bottom of the down-the-hole hammer.
In the technical scheme, when the wellhead chuck is clamped with the drill rod, the drill rod penetrates through the wellhead chuck and cannot rotate, and the rotary driving mechanism provides reaction torque.
In the technical scheme, the bit pressure of the cluster down-the-hole hammer is provided by the self weight of a drilling tool, and a drill rod is not pressurized.
The invention has the following advantages:
(1) the equipment is simple, a main machine similar to a rotary drilling rig is not arranged, and the manufacturing cost is greatly lower than that of a down-the-hole hammer drilling machine in the prior art;
(2) according to the invention, the size of a single down-the-hole drill on the cluster down-the-hole hammer is smaller, the vibration force to a well wall is very small, the down-the-hole hammer is exhausted, wrapped, collected and completely discharged into the slag discharge pipe, mud is adopted for protecting the wall, a pile casing is not needed for follow-up, a foundation covering layer can be ensured not to collapse, and a large-diameter ultra-deep covering layer can be constructed to enter a rock well hole;
(3) the drill rod is not pressurized, the length is not limited, the drilling depth is very deep, and the drill rod can be used for ultra-deep pile hole drilling construction;
(4) the single down-the-hole hammer on the cluster down-the-hole hammer has smaller size and smaller required drilling pressure and torque, and a graded reaming cluster down-the-hole hammer drill bit or an annular cluster down-the-hole hammer drill bit can be adopted for coring drilling to construct an oversized-diameter rock-entering drill hole.
(5) The crane and the high-pressure medium power station which are used in a matched manner are all universal equipment, can be used in other engineering fields, and improve the utilization rate of the equipment.
The invention has simple and light equipment, no main machine of the drilling machine, greatly lower manufacturing cost than the prior drilling down-the-hole hammer drilling machine, high construction speed, low cost and small vibration force of the drilling tool, adopts the mud retaining wall to discharge slag in a reverse circulation way, and can construct rock-entering pile holes with ultra-deep covering layers without a retaining cylinder following.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of a preferred drill rod scheme of the present invention.
In fig. 2, a denotes an outer drill rod; and B represents an inner layer drill rod.
In the figure, 1-a cluster down-the-hole hammer, 2-a wellhead chuck, 3-a rotary driving mechanism, 4-a drill rod, 5-a slag discharge pipe, 6-a high-pressure medium pipeline or cable, 7-a crane, 8-a rotary tap, 9-a high-pressure medium pipeline or cable in a drilling tool and 10-a slag suction pipe.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are not intended to limit the present invention, but are merely exemplary. While the advantages of the invention will be clear and readily understood by the description.
The drilling machine comprises a crane, a cluster down-the-hole hammer, a drill rod, a rotary driving mechanism, a wellhead chuck, a high-pressure medium power station and the like; the drill bit is suspended by the drill rod of the crane, the drill rod does not rotate, the rotary driving mechanism is arranged on the upper part of the drill bit and drives the drill bit to rotate, and the down-the-hole hammer impacts and drills to realize full-section drilling. The invention overcomes the defects that the down-the-hole hammer drill in the prior art has high manufacturing cost, small drilling diameter, too large vibration force and easy hole collapse, a pile casing is required to follow, and a large-diameter ultra-deep covering layer rock-entering drilling pile cannot be constructed; the device is simple and light, the drilling machine has no main machine, the manufacturing cost is greatly reduced, the slurry retaining wall is adopted, the retaining cylinder is not required to follow, and the ultra-large diameter rock entering pile hole of the ultra-deep covering layer can be constructed.
With reference to the accompanying drawings: the using method of the drill rod suspended down-the-hole hammer drill comprises the following steps,
the method comprises the following steps: assembling;
communicating the deslagging pipe 5 with the drill pipe 4 and the ground slurry treatment system;
communicating a high-pressure medium pipeline or a cable 6 with a rotary tap 8, a rotary driving mechanism 3 and ground power equipment;
step two: hoisting;
suspending the drill pipe 4 and other drilling tools to the drilling station by a crane 7;
step three: drilling;
fixing the drill rod 4 and the wellhead chuck 2, so that the drill rod 4 can only move up and down and cannot rotate;
starting a rotary driving device 3 to drive the cluster down-the-hole hammer 1 to rotate;
driving the cluster down-the-hole hammer 1 to impact rock drilling, discharging drilling slag and realizing full-section drilling of the down-the-hole hammer;
the drill rod 4 is lowered along with the drill bit;
and repeating the drilling operation until the drilling is finished.
In the technical scheme, in the third step, each down-the-hole hammer on the cluster down-the-hole hammer is provided with a closed outer sleeve, the down-the-hole hammer is collected to exhaust and discharge into the slag suction pipe 10, the bottom of the down-the-hole hammer is not provided with an exhaust hole, and gas cannot be discharged into pile hole mud outside a drilling tool;
further, in the technical scheme, in the third step, when the drill hole is a wet hole, the cluster down-the-hole hammer 1 exhausts air and enters the slag suction pipe 10 to form mud gas lift reverse circulation slag discharge;
when the drilled hole is a dry hole without water, an air injection and suction device is arranged in the slag suction pipe 10, and high-pressure air is introduced to form air reverse circulation slag removal.
Furthermore, in the third step, the size of a single down-the-hole hammer on the cluster down-the-hole hammer 1 is smaller, the down-the-hole hammers impact each other randomly, the vibration force can be counteracted mutually, the vibration force to the foundation is smaller, the vibration is ensured not to cause the collapse of the engineering drilling hole, the drilling construction in the stratum with the deep covering layer does not need the casing follow-up, and the simple mud wall protection is adopted.
Furthermore, in the third step, the single down-the-hole hammer on the cluster down-the-hole hammer 1 is small in size, the required bit pressure and torque are small, and a graded reaming cluster down-the-hole hammer drill bit or an annular cluster down-the-hole hammer drill bit can be adopted for core drilling to construct the ultra-large diameter rock drilling hole.
Furthermore, in the third step, the drill rod of the drilling machine does not need to be pressurized, the length of the drill rod is not limited, and the drilling depth of the drilling machine can be very deep.
Preferably, the drill rod is a square-section multilayer telescopic drill rod, the crane penetrates through a slurry discharge elbow at the top of the outer layer of the drill rod and is suspended on the central drill rod, the inner layer of drill rod can downwards extend to the lowest end of the adjacent outer layer of drill rod under the action of gravity, sliding sealing is adopted between the inner layer of drill rod and the outer layer of drill rod, and a central channel of the drill rod is used as a slag discharge channel.
With reference to the accompanying drawings: a drill rod suspension type down-the-hole hammer drill comprises a cluster down-the-hole drill (namely a cluster down-the-hole hammer 1), a wellhead chuck 2, a rotary driving mechanism 3, a drill rod 4, a slag discharge pipe 5, a high-pressure medium pipeline or cable 6, a crane 7, a rotary tap 8, a high-pressure medium pipeline or cable 9 in a drill tool and a slag suction pipe 10;
the crane 7 is positioned above the wellhead chuck 2; the crane 7 suspends drill rods and other drilling tools (such as a cluster down-the-hole drill), and the bit weight is provided by the self weight of the drilling tools;
the upper end of the drill rod 4 is clamped with the wellhead chuck 2, so that the drill rod 4 can only move up and down and cannot rotate, and reaction torque is provided for the rotary driving mechanism 3; the lower end of the drill rod 4 is sequentially connected with a rotary tap 8, a rotary driving mechanism 3 and a bundling down-the-hole hammer 1;
the high-pressure medium pipeline or cable 6 is positioned outside the drill rod 4; a high-pressure medium pipeline or a cable 6 penetrates through the wellhead chuck 2 and is sequentially connected with the rotary faucet 8, a high-pressure medium pipeline or a cable 9 in the drilling tool and the cluster down-the-hole hammer 1; a high-pressure medium pipeline or a cable 9 in the drilling tool is connected with a rotary tap 8 and the cluster down-the-hole hammer 1; a rotary driving mechanism 3 is arranged between the rotary tap 8 and the cluster down-the-hole hammer 1;
a high-pressure medium pipeline or a cable 6 enters a high-pressure medium pipeline or a cable 9 and a rotary driving mechanism 3 in the drilling tool through a rotary tap 8 and then enters a gas-liquid electric distribution pipeline on the cluster down-the-hole hammer 1 to drive the rotary driving mechanism 3 to rotate and drive the cluster down-the-hole hammer 1 to impact and drill, so that full-section drilling is realized; namely, high-pressure air enters a gas-liquid electric distribution pipeline on the cluster down-the-hole hammer 1 through a rotary tap 8 and a high-pressure medium pipeline or a cable 9 in a drilling tool through an air inlet pipe 6 to drive the down-the-hole hammer to impact and drill, so that full-section drilling is realized.
Each down-the-hole hammer on the cluster down-the-hole hammer 1 is provided with a closed outer sleeve, exhaust of the collected down-the-hole hammer is discharged into a slag suction pipe 10, the bottom of the down-the-hole hammer is not provided with an exhaust hole, residual air of the down-the-hole hammer is not discharged into pile hole slurry outside a drilling tool, and the pile hole is prevented from collapsing due to the fact that air leaks into the slurry;
the slag discharge pipe 5 is connected with the drill rod 4; a hollow structure is arranged in the drill rod 4;
one end of the slag discharge pipe 5 is connected with the ground slurry treatment system, and the other end of the slag discharge pipe is communicated with the exhaust slag discharge pipe of the cluster down-the-hole hammer 1 downwards through the drill rod 4, the rotary tap 8 and the slag suction pipe 10, so that the drilling slag is discharged in a gas-lift reverse circulation manner.
Examples
The construction method applied to the rock-entering well hole project of the large-diameter ultra-deep covering layer is described in detail as an embodiment, and the construction method has a guiding function on the construction of the rock-entering well hole project of the large-diameter ultra-deep covering layer.
Example 1
The drill rod suspension type down-the-hole hammer drill in the embodiment comprises a cluster down-the-hole hammer 1, a wellhead chuck 2, a rotary driving mechanism 3, a drill rod 4, a slag discharge pipe 5, a high-pressure medium pipeline or cable 6, a crane 7, a rotary tap 8, a high-pressure medium pipeline or cable 9 in a drilling tool and a slag suction pipe 10;
the crane 7 is positioned above the wellhead chuck 2; the crane 7 suspends the drill rod and other drilling tools (such as a cluster down-the-hole hammer 1 and the like), and the bit pressure is provided by the self weight of the drilling tools;
the upper end of the drill rod 4 extends upwards out of the wellhead chuck 2, and the lower end of the drill rod is sequentially connected with a rotary tap 8, a rotary driving mechanism 3 and a bundling down-the-hole hammer 1;
the upper end of the drill rod 4 is clamped with the wellhead chuck 2, so that the drill rod 4 can only move up and down and cannot rotate, and reaction torque is provided for the rotary driving mechanism 3;
the high-pressure medium pipeline or cable 6 is positioned outside the drill rod 4; a high-pressure medium pipeline or a cable 6 penetrates through the wellhead chuck 2 and is sequentially connected with the rotary faucet 8, a high-pressure medium pipeline or a cable 9 in the drilling tool and the cluster down-the-hole hammer 1; a high-pressure medium pipeline or a cable 9 in the drilling tool is connected with a rotary tap 8 and the cluster down-the-hole hammer 1; a rotary driving mechanism 3 is arranged between the rotary tap 8 and the cluster down-the-hole hammer 1; high-pressure air enters a gas-liquid electric distribution pipeline on the cluster down-the-hole hammer 1 through a rotary tap 8 and a high-pressure medium pipeline or a cable 9 in the drilling tool through an air inlet pipe 6 to drive the down-the-hole hammer to impact and drill, so that full-section drilling is realized.
Each down-the-hole hammer on the cluster down-the-hole hammer 1 is provided with a closed outer sleeve and is used for collecting the exhaust of the down-the-hole hammer and discharging the exhaust into a slag suction pipe 10; the bottom of the cluster down-the-hole hammer 1 is not provided with an exhaust hole, and residual air of the cluster down-the-hole hammer 1 is not exhausted into pile hole mud outside a drilling tool, so that the pile hole is prevented from collapsing due to the fact that air leaks into the mud;
the slag discharge pipe 5 is connected with the drill rod 4; a hollow structure is arranged in the drill rod 4;
one end of the slag discharge pipe 5 is connected with the ground slurry treatment system, and the other end of the slag discharge pipe is communicated with the exhaust slag discharge pipe of the cluster down-the-hole hammer 1 downwards through the drill rod 4, the rotary tap 8 and the slag suction pipe 10, so that the drilling slag is discharged in a gas-lift reverse circulation manner.
The construction method of the drill rod suspension type down-the-hole hammer drill comprises the following steps:
the method comprises the following steps: assembling;
communicating the deslagging pipe 5 with the drill pipe 4 and the ground slurry treatment system;
communicating a high-pressure medium pipeline or a cable 6 with a rotary tap 8, a rotary driving mechanism 3 and ground power equipment;
step two: hoisting;
suspending the drill pipe 4 and other drilling tools to the drilling station by a crane 7;
step three: drilling;
fixing the drill rod 4 and the wellhead chuck 2, so that the drill rod 4 can only move up and down and cannot rotate;
starting a rotary driving device 3 to drive the cluster down-the-hole hammer 1 to rotate;
driving the cluster down-the-hole hammer 1 to impact rock drilling, discharging drilling slag and realizing full-section drilling of the down-the-hole hammer;
the drill rod 4 is lowered along with the drill bit;
repeating the drilling operation until the drilling is finished;
when the drill hole is a wet hole, the cluster down-the-hole hammer 1 exhausts air and enters the slag suction pipe 10 to form mud gas lift reverse circulation slag discharge;
when the drilled hole is a dry hole without water, an air injection and suction device is arranged in the slag suction pipe 10, and high-pressure air is introduced to form air reverse circulation slag removal.
The single down-the-hole hammer on the cluster down-the-hole hammer 1 is small in size, the down-the-hole hammers impact each other randomly to work, vibration force can be counteracted mutually, vibration force to a foundation is small, engineering drilling hole collapse caused by vibration is avoided, a pile casing is not required to follow in drilling construction in a stratum with a deep covering layer, a simple mud pile wall is adopted, and construction efficiency is high.
And (4) conclusion: the drilling machine has no main machine, the manufacturing cost is greatly lower than that of the existing drilling down-the-hole hammer drilling machine, the construction speed is high, the cost is low, the vibration force of the drilling tool is small, mud dado reverse circulation slag discharge is adopted, a casing is not needed to follow up a rock entering pile hole capable of constructing an ultra-deep covering layer, the foundation covering layer can be guaranteed not to collapse, the drilling rod is not pressurized, the length is not limited, the drilling depth is deep, the drilling machine can be used for drilling construction of the ultra-deep pile hole, and the construction efficiency is high.
Example 2
The drill rod suspension type down-the-hole hammer drill and the construction method thereof in the embodiment are the same as the embodiment 1, and the difference is that: the drill rod in the embodiment is a multi-side section multi-layer telescopic drill rod; the drill rod comprises an outer layer drill rod and an inner layer drill rod; the outer layer drill rod and the inner layer drill rod are both hollow structures; the inner layer drill rod is positioned in the outer layer drill rod and movably connected with the outer layer drill rod, and the inner layer drill rod can freely extend out from the lower end of the outer layer drill rod under the action of gravity;
the crane steel wire rope penetrates through the slurry discharge elbow at the top of the outer layer of the drill rod and is suspended at the top of a central drill rod (namely an inner layer drill rod) of the telescopic drill rod, and the inner layer drill rod can extend downwards to the lowest end of the adjacent outer layer drill rod under the action of gravity; an inner layer drill rod and an outer layer drill rod of the drill rod are sealed in a sliding mode through elastic sealing rings, and a central channel (namely a hollow structure of the outer layer drill rod and the inner layer drill rod) of the drill rod is used as a slag discharging channel;
a steel wire rope of the crane 4 penetrates through the wellhead chuck 2, enters the outer layer drill rod and is connected with the top of the inner layer drill rod; the lower end of the inner layer drill rod is sequentially connected with a rotary tap 8, a rotary driving mechanism 3 and a bundling down-the-hole hammer 1.
And (4) conclusion: the drilling machine has no main machine, the manufacturing cost is greatly lower than that of the existing drilling down-the-hole hammer drilling machine, the construction speed is high, the cost is low, the vibration force of the drilling tool is small, mud dado reverse circulation slag discharge is adopted, a casing is not needed to follow up a rock entering pile hole capable of constructing an ultra-deep covering layer, the foundation covering layer can be guaranteed not to collapse, the drilling rod is not pressurized, the length is not limited, the drilling depth is deep, the drilling machine can be used for drilling construction of the ultra-deep pile hole, and the construction efficiency is high.
Other parts not described belong to the prior art.
Claims (6)
1. A use method of a drill rod suspension type down-the-hole hammer drill is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
the method comprises the following steps: assembling;
communicating the slag discharge pipe (5) with the drill rod (4) and the ground slurry treatment system;
communicating a high-pressure medium pipeline or a cable (6) with a rotary faucet (8), a joint on a rotary driving mechanism (3) and ground equipment;
step two: hoisting;
a steel wire rope of the crane (7) suspends the drill rod and other drilling tools to a drilling station;
step three: drilling;
the wellhead chuck (2) and the drill rod (4) are clamped;
starting a rotary driving mechanism (3) to drive the cluster down-the-hole hammer (1) to rotate;
starting the cluster down-the-hole hammer (1) to impact rock drilling, discharging drilling slag, and realizing the down-the-hole hammer to drill the whole section of the foundation;
the drill rod (4) is put in and put down while drilling;
and repeating the drilling operation until the drilling is finished.
2. The method of using a drill pipe suspended down-the-hole hammer drill according to claim 1, wherein: in the third step, when the drill hole is a wet hole, the exhaust port of the cluster down-the-hole hammer (1) is communicated with the slag suction pipe (10) to form mud gas lift reverse circulation slag discharge;
when the drilled hole is a dry hole without water, an air injection and suction device is arranged in the slag suction pipe (10), and high-pressure air is introduced to form air reverse circulation slag removal;
when drilling a shallow hole with a hole on the ground, an air or slurry injection and suction device is arranged in the slag suction pipe (10) to form reverse circulation slag removal.
3. A drill pipe suspended down-the-hole hammer drill used in a method of using a drill pipe suspended down-the-hole hammer drill according to any one of claims 1-2, wherein: the device comprises a cluster down-the-hole hammer (1), a wellhead chuck (2), a rotary driving mechanism (3), a drill rod (4), a slag discharge pipe (5), a high-pressure medium pipeline or cable (6), a crane (7), a rotary tap (8), a high-pressure medium pipeline or cable (9) in a drilling tool and a slag suction pipe (10);
a crane (7) suspends the drill rod (4) and other drilling tools in the well by a steel wire rope;
the drill rod (4) penetrates through the wellhead chuck (2);
the rotary tap (8) and the rotary driving mechanism (3) are arranged between the drill rod (4) and the cluster down-the-hole hammer (1);
a high-pressure medium pipeline or a cable (6) is connected with the rotary tap (8) and the rotary driving mechanism (3);
the slag discharge pipe (5) is connected with the drill rod (4);
a high-pressure medium pipeline or a cable (9) in the drilling tool is connected between the cluster down-the-hole hammer (1) and the rotary tap (8);
the slag suction pipe (10) is connected between the cluster down-the-hole hammer (1) and the rotary tap (8);
each single down-the-hole hammer on the cluster down-the-hole hammer (1) is provided with a closed outer sleeve, the down-the-hole hammer is collected to exhaust and is discharged into a slag suction pipe (10), and no exhaust hole is arranged at the bottom of the down-the-hole hammer.
4. The drill pipe suspended down-the-hole hammer drill of claim 3, wherein: the bit pressure of the cluster down-the-hole hammer (1) is provided by the self weight of the drilling tool, and the drill rod is not pressurized.
5. The drill pipe suspended down-the-hole hammer drill of claim 4, wherein: when the wellhead chuck (2) and the drill rod (4) are clamped, reaction torque is provided for the rotation of the drill bit.
6. The drill pipe suspended down-the-hole hammer drill of claim 5, wherein: each down-the-hole hammer on the cluster down-the-hole hammer (1) is provided with a closed outer sleeve, all exhaust gas of the collected down-the-hole hammer is discharged into a slag suction pipe (10), and no exhaust hole is arranged at the bottom of the down-the-hole hammer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011624669.XA CN112727350A (en) | 2020-12-31 | 2020-12-31 | Using method of drill rod suspension type down-the-hole hammer drill and down-the-hole hammer drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011624669.XA CN112727350A (en) | 2020-12-31 | 2020-12-31 | Using method of drill rod suspension type down-the-hole hammer drill and down-the-hole hammer drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112727350A true CN112727350A (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011624669.XA Withdrawn CN112727350A (en) | 2020-12-31 | 2020-12-31 | Using method of drill rod suspension type down-the-hole hammer drill and down-the-hole hammer drill |
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| Country | Link |
|---|---|
| CN (1) | CN112727350A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530443A (en) * | 2021-08-03 | 2021-10-22 | 淮南矿业(集团)有限责任公司 | Vertical drilling method for large-diameter life-saving hole |
-
2020
- 2020-12-31 CN CN202011624669.XA patent/CN112727350A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530443A (en) * | 2021-08-03 | 2021-10-22 | 淮南矿业(集团)有限责任公司 | Vertical drilling method for large-diameter life-saving hole |
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Application publication date: 20210430 |