CN105971502B - The deep compound cutting method of basement rock - Google Patents
The deep compound cutting method of basement rock Download PDFInfo
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- CN105971502B CN105971502B CN201610283145.6A CN201610283145A CN105971502B CN 105971502 B CN105971502 B CN 105971502B CN 201610283145 A CN201610283145 A CN 201610283145A CN 105971502 B CN105971502 B CN 105971502B
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- Prior art keywords
- basement rock
- grinding
- drill bit
- drill
- grinding block
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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
- E21B7/00—Special methods or apparatus for drilling
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
-
- 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
- E21B1/00—Percussion drilling
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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
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
-
- 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
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
- E21B10/602—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a rotary drag type bit with blades
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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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
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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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
Abstract
The invention discloses a kind of deep compound cutting methods of basement rock comprising：It is bored using hand handle and Drilling processing is carried out to deep basement rock, to form the spaced multiple main apertures of tool；After waiting for that all main aperture Drillings are complete, the deep basement rock between multiple main apertures is carried out boring successively using impact drill to split processing, to form the multiple secondary orifices being connected with adjacent main aperture；After waiting for that multiple secondary orifices brills have been split, multiple main apertures of formation and multiple secondary orifices are carried out using plane set-hammer to repair hole processing, the vertical square groove of its cell wall is formed to repair after hole is handled.The method of the present invention, drilling efficiency are high, and the auxiliary used time is few when basement rock grooving, and construction speed is fast, and production efficiency is high.
Description
Technical field
The present invention relates to construction engineering technical field more particularly to a kind of compound cutting methods of deep basement rock.
Background technology
In the process of processing, various geological conditions can encountered to ground, such as complete hard deep rock, such
Rock strength is big and deep, such as deep light weathered granite, and rock strength maximum is up to 132MPa.In the prior art, right
When hard deep rock carries out drilling construction, all it is that the construction method pounded is rushed with cross bit using conventional impact drill, uses
This method is not only susceptible to the case where blocking drill bit in drilling, and the quadrangle that cross bores often fractures so that drilling work efficiency
Extremely low, the construction auxiliary used time is more, and construction cost is high.
Invention content
The purpose of the present invention is exactly to solve the above-mentioned problems, to provide a kind of compound cutting method of deep basement rock, drilling
Efficient, the auxiliary used time is few when basement rock grooving, and construction speed is fast, and production efficiency is high.
Above-mentioned purpose to realize the present invention, the deep compound cutting method of basement rock provided by the invention include：
It is bored using hand handle and Drilling processing is carried out to deep basement rock, to form the spaced multiple main apertures of tool；
After waiting for that all main aperture Drillings are complete, the deep basement rock between multiple main apertures is bored successively using impact drill
Processing is split, to form the multiple secondary orifices being connected with adjacent main aperture；
After waiting for that multiple secondary orifices brills have been split, multiple main apertures of formation and multiple secondary orifices are carried out using plane set-hammer to repair hole processing,
The vertical square groove of its cell wall is formed to repair after hole is handled.
Wherein, the drill bit for the drill bit and the impact drill that the hand handle is bored is frictional drill bit.
Preferably, the frictional drill bit includes that drillstock, its top connect the drill body of the drillstock bottom end, the drill body packet
It includes：Its top connects the ontology of the drillstock bottom end；Multiple grinding subassemblies in the ontology bottom end are set；It is arranged at described
Multiple discharge troughs for rock powder to be discharged on external wall, the thick liquid discharge mouth of each of which discharge trough in the multiple grinding subassembly
Two grinding subassemblies are adjacent；The multiple arcs body for closing off each grinding subassembly part in ontology bottom end is set.
Wherein, the grinding subassembly includes：It is set to the first grinding block of a pair of the ontology bottom end；It is set to described
Body bottom end and the second grinding block on the inside of a pair of first grinding block；Wherein, second grinding block and the pair of first
Grinding block is distributed in Y-shaped.
Wherein, there are the body bottom portion at least three claws, each grinding subassembly to be placed on a claw.
Wherein, each arc body is set to the edge of a claw of the ontology.
Preferably, the outside of the medial surface and the first grinding block of a pair on the claw of the arc body on each claw
Face is in contact respectively, so that arc body closes a pair of first grinding block.
Wherein, the length of the secondary orifices is the 1/2-4/5 of the main aperture length.
Wherein, between the lateral surface of second grinding block and the medial surface of the pair of first grinding block there are for
The reserved mouth of a river that the thick liquid discharge mouth is connected.
Wherein, further include being formed towards Drilling when being bored using hand handle or impact drill carries out Drilling processing to deep basement rock
Mud is conveyed in slot and makes the step of mud recycles in slot.
Compared with prior art, the compound cutting method of deep basement rock of the embodiment of the present invention has the following advantages that：
1), the method for the present embodiment drills through main aperture using hand handle, secondary orifices is drilled through using impact drill, combines hand handle brill
The characteristics of stroke is high, rate of penetration is fast and the impact drill impact frequency is high, easily controllable hole deviation, to improve drilling efficiency, accelerates
Construction speed improves production efficiency；
2), the frictional drill bit in the method for the present embodiment has multiple grinding subassemblies, is used by multiple grinding subassemblies
The mode of flat surface grinding increases the contact area between grinding subassembly and basement rock, makes drill bit pair to deep basement rock trenching construction
The impact force of basement rock is uniform, and bit freezing phenomenon is less prone to during being ground pore-creating, has the function of pore-creating correction.
3), the frictional drill bit of the present embodiment, can form honeycombed between multiple grinding subassemblies and multiple arcs body
Free face, pore-forming when to be crept into basement rock conducive to drill bit is broken, improves drilling work efficiency, accelerates construction progress；
4), the frictional drill bit of the present embodiment, there are the reserved mouths of a river between the first grinding block and the second grinding block, and pre-
The mouth of a river is stayed to be connected with thick liquid discharge mouth, the disintegrating slag of the rock powder even grinding block to be formed when drill bit being made to be ground basement rock can be arranged in time
Go out without accumulating in bottom hole, therefore thicker sediment will not be formed in bottom hole, avoids the impact force of sediment cushioned drill bit
Sediment is carried out with drill bit to repeat drilling, the drilling work efficiency of drill bit is improved, improves construction speed；
5), the frictional drill bit of the present embodiment, arc body is by the outside face closure of corresponding a pair of first grinding block, and arc
The outer diameter of body is identical as the corresponding radius of claw, therefore, it can be ensured that when drill bit creeps into basement rock pore-creating, the edge in hole is round and smooth and nothing
Teeth resistance improves construction efficiency when drilling, reduces the unproductive time for repairing hole, it is ensured that construction quality；
6), the frictional drill bit of the present embodiment, each grinding block are made of the high-strength alloy of wear and shock-resistant, in grinding base
Will not be scaling-off or broken easily when rock, the unproductive time for being repaired to drill bit, deslagging being carried out to drilling, repaiies hole is reduced, is improved
Creep into work efficiency；
7), the frictional drill bit of the present embodiment is provided with lifting lug, by lifting lug in other components of drill body or drill bit
The steel wire rope for drawing drill bit is worn, prevents drill bit when carrying out high speed impact to basement rock, occurs brill situation, improves construction
Safety and work efficiency.
The embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
Description of the drawings
Fig. 1 is the front view of the frictional drill bit of the embodiment of the present invention；
Fig. 2 is the upward view of frictional drill bit shown in Fig. 1；
Fig. 3 is the flow chart of the compound cutting method of deep basement rock provided by the invention；
Fig. 4 is that hand handle bores construction hole position schematic diagram in the method for the present invention；
Fig. 5 is that the air hose leading truck of the embodiment of the present invention is fixed on the structural schematic diagram on steel wire rope；
Fig. 6 is part A enlarged drawing in Fig. 5；
Fig. 7 is the air hose guide body structure schematic diagram (connecting rod is not shown) of the embodiment of the present invention.
Specific implementation mode
The problem of inventor when common deep basement rock trenching construction to encountering constantly is studied, and discovery is bored in the prior art
The main reason for low into efficiency includes following aspects：
1) completely fine and close intensity is high for the rock mass of deep basement rock, and crack is few in rock mass, and drill bit rushes chisel power by basement rock entirety
It uniformly transfers, drilling efficiency is low；
2) single kind such as cross is used to creep into row pore-creating, bit wear chip off-falling, scaling-off serious, bushel iron block, scum weight
Greatly, bottom hole is accumulated in, it is difficult to which dross and deslagging form thicker precipitation, buffered the impact force of drill bit；
3) weld drill bit, paving assistant engineer's effect such as repair hole, deslagging when it is more, influence work efficiency.
For above-mentioned reason, inventor improves the drill bit applied in the prior art, is changed by the cross drill bit of the prior art
Change the frictional drill bit of welding method formation for the rubbing surface formula of the present invention and the mouth of a river, also, to using a kind of drilling in the prior art
The construction method of row drilling pore-creating is improved, and the construction method with the compound grooving of impact drill is bored using hand handle, to deep basement rock
Carry out trenching construction.
As shown in figure 3, for the flow chart of the deep compound cutting method of basement rock provided by the invention, from the figure 3, it may be seen that of the invention
Method include the following steps：
It is bored using hand handle and Drilling processing is carried out to deep basement rock, to form the spaced multiple main apertures of tool；
After waiting for that all main aperture Drillings are complete, the deep basement rock between multiple main apertures is bored successively using impact drill
Processing is split, to form the multiple secondary orifices being connected with adjacent main aperture；
After waiting for that multiple secondary orifices brills have been split, multiple main apertures of formation and multiple secondary orifices are carried out using plane set-hammer to repair hole processing,
The vertical square groove of its cell wall is formed to repair after hole is handled.
Specifically, the method for the present invention includes following steps：
Step 1 before carrying out trenching construction to the rock stratum of deep basement rock, carries out classifying rationally, and rationally draw to slot segment length
The length and its length between main aperture for dividing secondary orifices, to improve construction speed.
Wherein, when dividing, according to slot segment length, the length for choosing secondary orifices is the 1/2-4/5 of main hole length, for example, such as
Shown in Fig. 4, when slot segment length is 600 meters, arranges that 4 main aperture M and three secondary orifices N, each main aperture M length are 1 meter, be located at two
Secondary orifices N length between two main aperture M on side is 0.65 meter, that is, secondary orifices length is the 13/20 of main hole length, and positioned at centre
Two main aperture M between secondary orifices N length be 0.7 meter, that is, the secondary orifices length be main hole length 7/10.It is of course also possible to
Using slot segment length in the prior art and the division methods of secondary orifices length.
Step 2, after the completion of being divided to slot section, (such as CK-1800 types hand handle bore) is bored to the rock of deep basement rock using hand handle
Body carries out round Drilling successively and handles, to form multiple main apertures with certain intervals.
Wherein, main aperture is drilled through using hand handle, hand handle can be utilized to bore the advantage that stroke is high, rate of penetration is fast, than impact
Brill drills through multiple main apertures on rock stratum faster.
Using hand handle bore to deep basement rock carry out Drilling processing when, can towards Drilling formed slot in convey mud, and
So that mud in slot is constantly recycled, forms sediment so that the objects such as the boring mud that is formed when Drilling will not be deposited in bottom hole, avoid boring
Head carries out the sediment of bottom hole to repeat drilling, to improve construction efficiency.
Step 3 is bored in hand handle after construction completes multiple main apertures, is arranged impact drill (such as CZ-50 types impact drill) in place, is used
Rock mass of the impact drill between adjacent main aperture, which bore, splits processing to form secondary orifices.
Similar I-shaped rock mass structure is formed since rock mass is after the complete main aperture of Drilling, between adjacent main aperture, therefore, if
It is further continued for processing secondary orifices using hand handle brill, then hand handle bores easily deflection so that the hole position deflection drilled out, follow-up needs are more auxiliary
It carries out repairing hole when assistant engineer, therefore, the present invention is after main aperture completion, using the impact drill of high, the easily controllable hole deviation of the impact frequency
Rendrock body is bored to form the multiple secondary orifices being connected with adjacent main aperture.
When use impact drill to rock mass bore and splits processing, need to continue to convey mud towards in slot, and according to punching
Actual conditions adjust mud index in time, prevent collapse hole situation occur.When impact drill enters rock mass pore-forming, using diligent pine
Rope, the diligent method drawn slag, strictly control slack rope length, and drill bit promotes the connection between haulage cable check at any time.It applies
Per a drilling depth borehole perpendicularity of 1.0~2.0 meters of measurements during work, and rectify a deviation at any time.It encounters and uses low hammer at formation variation
Tap, the method for interruption impact carefully pass through.
Wherein, the method that the prior art may be used in mud is conveyed into slot, and the mud being delivered in slot is made to carry out
The method of cycle includes the following steps：
Before being excavated to deep basement rock, one end of ajutage is fixed on for drawing the brill for creeping into grooving to basement rock
On the steel wire rope of head (such as hand handle is bored or impact drill), the other end of ajutage is connected with air compressor machine, is generated so as to air compressor machine
Compressed air can be sent by ajutage in slot；
After one end of ajutage is fixed on a steel cord, using drill bit to basement rock from top to bottom percussion drilling, so as to
Ground-connecting-wall grooving after pore-creating；
When drill bit creeps into grooving to basement rock so that basement rock is ground into the boring mud of a large amount of rock powder class, therefore, with brill
Head to basement rock creep into grooving, by the method for the prior art into the slot of formation continual supply mud, meanwhile, pass through sky
Press and ajutage are blown into slot, blow mud and boring mud in slot will pass through compressed air so that mud follows in slot
Ring, boring mud are suspended in mud, that is, mud and boring mud will not be deposited in bottom hole；
While air-supply into slot by air compressor machine and ajutage, drill bit continues to creep into the rock mass below boring mud,
It is not deposited in since the boring mud formed when drill bit early period creeps into basement rock is suspended in mud and bottom hole, when drill bit continues pair
When the rock mass of lower section is crept into, the bottom end of drill bit can directly contact rock mass across boring mud, thus not when continuing drilling
The boring mud formed early period can be crept into, effectively prevent drill bit and the repetition of the sediments such as boring mud is crept into；
Wherein, it one end of ajutage is fixed on a steel cord, is oriented to by the way that one end of ajutage is fed through air hose
Frame, the again method by the fixation of air hose leading truck on a steel cord, make ajutage with rope traction by air hose leading truck
Drill bit moves up and down, and in bit, ajutage will not effectively prevent ajutage to be wrapped in steel wire with bit
On rope, in addition, during drill bit creeps into basement rock, under the action of air hose leading truck, ajutage bottom end is with respect to drill end
Position remain unchanged so that the air-supply effect of ajutage is always maintained at constant, also ajutage is avoided to be wrapped on drill bit.
Wherein, as shown in figure 5, being placed in for air hose leading truck 14 provided in an embodiment of the present invention for drawing drill bit of drilling machine
Structural schematic diagram on 12 steel wire rope 11, Fig. 6 is part A enlarged drawing shown in fig. 5, by Fig. 5, Fig. 6 it is found that 11 bottom of steel wire rope
End is fed through after the lifting lug for lifting drill bit and turns back to form back-turning section upwards, and back-turning section and steel wire rope are not fed through lifting lug
Vertical section it is parallel, the back-turning section of steel wire rope and vertical section are locked using multiple buckles 13 disposed up and down, and air hose is oriented to
Frame 14 is sleeved on except back-turning section and vertical section.
Specifically, as shown in Figure 6, Figure 7, air hose leading truck 14 provided in an embodiment of the present invention includes：For being sleeved on use
Frame body on the steel wire rope 11 of traction drill bit；It is arranged outside frame body and is connected thereto arc frame 18 together；Wherein, it blows
Pipe 19 is set between arc frame 18 and frame body.
Wherein, frame body includes：The U-tube 15 except back-turning section and vertical section for being sleeved on steel wire rope 11；It is set to U
The open end of type pipe 15 and the connecting rod 17 being detachably connected with U-tube 15, for the U-tube 15 to be fixedly mounted on steel wire
Except the back-turning section and vertical section of rope.Preferably, set is respectively set in the end of two projected in parallel out the cantilever arm of U-tube 15
Ring, and the both ends of connecting rod 17 are fed through corresponding lantern ring respectively, then distinguished the both ends of connecting rod 17 by a pair of of nut 16
It is fixed on lantern ring.It is of course also possible to it is respectively set through-hole in the end of two cantilever arms of U-tube 15, and connecting rod 17
Both ends are fed through a pair of of through-hole respectively, and then the both ends of connecting rod 17 are separately fixed on cantilever arm by a pair of of nut again.
And arc frame 18 is the fixed frame arc-shaped with the part of the curved portion of U-tube 15 closing connection, 19 sets of ajutage
Between curved portion loaded on arc frame 18 and U-tube 15, that is, ajutage 19 is arranged in parallel with steel wire rope 11.When design, arc should be made
The radius of shape frame 18 be slightly larger than ajutage 19 radius, so as to ajutage 19 after being fed through arc frame 18 between arc frame 18
Slightly gap so that ajutage 19 can rotate in arc frame 18.And ajutage 19 deviates from arc frame 18 in order to prevent, air-supply
A pair of of the annular solid for protruding from 19 outer wall of ajutage can be arranged in the bottom end of pipe 19, and the radius of a pair of of annular solid is all higher than arc frame
18 radius, and arc frame 18 is located between a pair of of annular solid, to make ajutage 19 under the action of air hose leading truck 14 both
It can move up and down and can be rotated relative to air hose leading truck 14 with steel wire rope.That is, ajutage 19 can be led with steel wire rope
The drill bit drawn moves up and down, and in bit, and ajutage 19 will not effectively prevent ajutage 19 to wind with bit
On a steel cord, in addition, during drill bit creeps into basement rock, 19 bottom end of ajutage is kept not with respect to the position of drill end
Become so that the air-supply effect of ajutage 19 is always maintained at constant, also ajutage is avoided to be wrapped on drill bit.
Wherein, when one end of ajutage 19 to be fixed on steel wire rope 11, one end (i.e. ajutage of ajutage 11
11 bottom end) it is located at the top (as shown in Figure 5) of 11 junction of drill bit and steel wire rope, and the bottom of ajutage 19 is placed in air hose
In leading truck 14.It is obtained by many experiments, when 19 bottom end of ajutage is 1.2-1.8m with a distance from drill end, effect of blowing
Most preferably.
The present invention prevents ajutage to be wrapped in brill by installing the air hose leading truck for being set with ajutage above drill bit
On head, production safety and construction efficiency are improved, and by blowing while drill bit is crept into, boring mud etc. can be effectively prevent
It is deposited in bottom hole, drill bit is avoided to repeat to creep into boring mud, improves drilling efficiency.
Step 4 after waiting for that multiple secondary orifices brills have been split, carries out repairing hole using plane set-hammer to multiple main apertures of formation and multiple secondary orifices
Processing forms the vertical square groove of its cell wall to repair after hole is handled.
After multiple secondary orifices brill is split completion, the rock mass for having crept into main aperture and secondary orifices is carried out repairing slot for the first time using plane set-hammer
Processing, the wedge angle size cases between using ultrasound wall instrument detection hole wall vertical later and punching, according to measurement situation, then is adopted
Hole is repaiied repeatedly with plane set-hammer, until the stone wedge angle length on cell wall verticality and wall is within allowable range.
The present invention is combined hand handle and is bored punching using the method for first being drilled through main aperture with hand handle, being drilled through secondary orifices with impact drill again
The advantages of Cheng Gao, rate of penetration are fast and impact drill impacts frequency height, easily controllable hole deviation, and avoid hand handle and bore hole not easy to control
Tiltedly, the slow disadvantage of impact drill rate of penetration accelerates construction speed, carries so as to improve the drilling efficiency to deep basement rock
High production efficiency.
Wherein, frictional drill bit may be used in the drill bit for the drill bit and impact drill that hand handle of the invention is bored.
As shown in Figure 1, for the front view of the frictional drill bit provided in an embodiment of the present invention for deep basement rock grooving, figure
2 be the upward view of frictional drill bit shown in Fig. 1.As seen from Figure 1, Figure 2, frictional drill bit provided in an embodiment of the present invention includes using
In the drill body 2 of the drillstock 1, its top connection drillstock 1 bottom end that are connected with drilling machine, wherein drill body 2 includes：Its top connects drillstock 1
The ontology 3 of bottom end；Multiple grinding subassemblies in 3 bottom end of ontology are set；What is be arranged on 3 outer wall of ontology is used to that the more of rock powder to be discharged
A discharge trough 4, the thick liquid discharge mouth of each of which discharge trough 4 are adjacent with two grinding subassemblies in multiple grinding subassemblies；It is arranged in ontology 3
The multiple arcs body 6 for closing off each grinding subassembly part of bottom end.
It should be noted that deep basement rock herein refers to hardness be up to 132MPa, coating for several meters rock stratum
Thickness reaches 20-40 meters of geology.
Specifically, as shown in Figure 1 and Figure 2, the ontology 3 of the frictional drill bit of the present embodiment is in up-narrow and down-wide taper, in ontology
3 bottom end is uniformly arranged multiple grinding subassemblies, and (grinding subassembly can be 2,3,4 or more, and 4 mills are only shown in figure
Cut component), multiple grinding subassemblies using to deep basement rock trenching construction, increase by way of flat surface grinding grinding subassembly with
Contact area between basement rock keeps drill bit uniform to the impact force of basement rock, and it is existing that bit freezing is less prone to during being ground pore-creating
As having the function of pore-creating correction.It is opened up along its axially extending multiple discharge trough 4 in the outer wall of ontology 3, passes through discharge trough 4
The rock powder discharge formed when grinding subassembly is ground basement rock reduces the abrasion to grinding subassembly to improve drilling work efficiency.At this
Multiple arcs body 6 (quantity of arc body 6 is identical as the quantity of grinding subassembly) is arranged in 3 bottom end of body, is closed by each arc body 6
One grinding subassembly part, so that honeycomb free face can be formed between multiple grinding subassemblies and corresponding multiple arcs body,
It is broken conducive to pore-forming when being crept into basement rock.
Wherein, 3 bottom of ontology has multiple claws, and the quantity of claw can be 2,3,4 or more, design
When, the quantity of claw is identical with the quantity of grinding subassembly, arc body, and mutual position relationship is also identical, and according to construction
Concrete condition determine the quantity of claw.Multiple discharge troughs 4 are respectively arranged between each two adjacent claw.In the following, only with
For the structure of frictional drill bit with 4 claws as shown in Figure 2, the structure of the frictional drill bit of the present invention is carried out detailed
It describes in detail bright.
As shown in Fig. 2, the frictional drill bit of the present embodiment has 4 claws, a grinding subassembly is disposed on each claw
With an arc body 6, arc body is set to the edge of corresponding claw.Wherein, the grinding subassembly on each claw includes：It is set to
The first grinding block of a pair 5 of 3 bottom end of ontology (i.e. claw bottom end) is set to 3 bottom end of ontology (i.e. claw bottom end) and positioned at a pair
Second grinding block 7 of 5 inside of the first grinding block, the second grinding block 7 are distributed with a pair of first grinding block 5 in Y-shaped so that second
It is formed between grinding block 7 and a pair of first grinding block 5 and faces empty slot conducive to what pore-forming was crushed.Preferably, the outside of the second grinding block 7
There are the reserved mouth of a river 8 between face and the medial surface of a pair of first grinding block 5, the rock powder formed when being ground basement rock so as to grinding block from
The reserved mouth of a river 8 flows to the thick liquid discharge mouth of discharge trough 4, and is discharged via discharge trough 4, avoids the disintegrating slag product of rock powder even grinding block
Gather in bottom hole, it is difficult to float in hole and be discharged so that bottom hole forms thicker sediment, and sediment has buffered rushing for drill bit
Power is hit, so that drill bit is carried out repetition drilling to sediment influences construction speed to reduce the drilling work efficiency of drill bit.
Preferably, the lateral surface of each claw of ontology 3 is arc-shaped, and the outer diameter of the arc body 6 on claw is equal to claw
Radius, that is, arc body 6 is axially placed in claw bottom and extends downward along ontology 3.Wherein, the arc on each claw
The medial surface of body 6 is in contact respectively with the lateral surface of the first grinding block of a pair 5 on the claw, so that arc body 6 closes a pair
First grinding block 5.When design, the height of arc body 6 can be less than the height of grinding block, and (height herein refers to 6 He of arc body
The height that each grinding block extends along ontology axial direction from ontology bottom end downward).
Since the arc body 6 on claw is by the outside face closure of a pair of first grinding block 5, and the outer diameter of arc body 6 with it is right
Answer the radius of claw identical, therefore, it can be ensured that when drill bit creeps into basement rock pore-creating, the edge in hole it is round and smooth and without teeth resistance, to
Improve construction efficiency when drilling.
Due to forming empty slot between arc body 6, a pair of first grinding block 5 and the second grinding block 7 on each claw so that
The free face of honeycombed can be formed between multiple grinding subassemblies on multiple claws and multiple arcs body 6, to be conducive to pore-forming
It is broken.
Wherein, the discharge trough being arranged between adjacent claw extends above and below ontology axially direction, and discharge trough
Thick liquid discharge mouth (thick liquid discharge mouth refers to the opening positioned at ontology bottom end of discharge trough) is arc-shaped and towards the center position of ontology bottom end
It is recessed.When design, the radius of thick liquid discharge mouth is more than the radius of discharge trough other parts, that is, discharge trough is tilted upward by thick liquid discharge mouth to be prolonged
Extend straight up again after stretching a part.
Wherein, first grinding block 5 of the present embodiment and the second grinding block 7 are respectively one seamed edge triangular prism directed downwardly
(as shown in Figure 2), which becomes the grinding sword of grinding block, and faceted pebble corresponding with the seamed edge is fixedly mounted on ontology bottom end,
Bottom end as each grinding surface to be welded on to ontology by welding.
Preferably, the first grinding block 5 and the second grinding block 7 are made of high-strength alloy, make the high intensity of grinding block
Alloy may be used the prior art with wear-resisting, impact resistance at high strength cemented carbide steel be made, and preferably surrender is strong
Degree is not less than 800MPa, and YG3X tungsten steel alloys such as may be used and be made.And material system identical with grinding block can be used in arc body
At the other materials with high intensity can also be used and be made, e.g., be made of high-strength spring or semiaxis, and pass through welding
Mode is fixed on the edge of ontology, together with each grinding block, realizes that tunneling boring forms high strength friction face.
In addition, lifting lug 9 is arranged in the present embodiment on drill body 2 (as shown in Figure 1) or other components for connecting drill bit, lead to
The steel wire rope worn in lifting lug 9 for drawing drill bit is crossed, prevents the frictional drill bit of the present invention from carrying out high-speed punching to basement rock
When hitting, drill bit fall the occurrence of boring.
Certainly, the drill bit for the drill bit and impact drill that hand handle of the invention is bored can also use the cross bit of the prior art.
But compare through site operation, using the frictional drill bit of the present embodiment is up to 132MPa to hardness, depth of stratum reaches 20-40 meters
Rock mass carry out pore-creating grooving when, drilling efficiency is enhanced about more than once than the cross bit of the prior art, greatly ensure that and applies
Work safety, it is ensured that construction quality accelerates project progress.
In conclusion the compound cutting method of deep basement rock of the embodiment of the present invention has the following advantages that：
1), the method for the present embodiment drills through main aperture using hand handle, secondary orifices is drilled through using impact drill, combines hand handle brill
The characteristics of stroke is high, rate of penetration is fast and the impact drill impact frequency is high, easily controllable hole deviation, to improve drilling efficiency, accelerates
Construction speed improves production efficiency；
2), the frictional drill bit in the method for the present embodiment has multiple grinding subassemblies, is used by multiple grinding subassemblies
The mode of flat surface grinding increases the contact area between grinding subassembly and basement rock, makes drill bit pair to deep basement rock trenching construction
The impact force of basement rock is uniform, and bit freezing phenomenon is less prone to during being ground pore-creating, has the function of pore-creating correction.
3), the frictional drill bit of the present embodiment, can form honeycombed between multiple grinding subassemblies and multiple arcs body
Free face, pore-forming when to be crept into basement rock conducive to drill bit is broken, improves drilling work efficiency, accelerates construction progress；
4), the frictional drill bit of the present embodiment, there are the reserved mouths of a river between the first grinding block and the second grinding block, and pre-
The mouth of a river is stayed to be connected with thick liquid discharge mouth, the disintegrating slag of the rock powder even grinding block to be formed when drill bit being made to be ground basement rock can be arranged in time
Go out without accumulating in bottom hole, therefore thicker sediment will not be formed in bottom hole, avoids the impact force of sediment cushioned drill bit
Sediment is carried out with drill bit to repeat drilling, the drilling work efficiency of drill bit is improved, improves construction speed；
5), the frictional drill bit of the present embodiment, arc body is by the outside face closure of corresponding a pair of first grinding block, and arc
The outer diameter of body is identical as the corresponding radius of claw, therefore, it can be ensured that when drill bit creeps into basement rock pore-creating, the edge in hole is round and smooth and nothing
Teeth resistance improves construction efficiency when drilling, reduces the unproductive time for repairing hole, it is ensured that construction quality；
6), the frictional drill bit of the present embodiment, each grinding block are made of the high-strength alloy of wear and shock-resistant, in grinding base
Will not be scaling-off or broken easily when rock, the unproductive time for being repaired to drill bit, deslagging being carried out to drilling, repaiies hole is reduced, is improved
Creep into work efficiency；
7), the frictional drill bit of the present embodiment is provided with lifting lug, by lifting lug in other components of drill body or drill bit
The steel wire rope for drawing drill bit is worn, prevents drill bit when carrying out high speed impact to basement rock, occurs brill situation, improves construction
Safety and work efficiency.
Although being explained in detail above to the embodiment of the present invention, the embodiment of the present invention is without being limited thereto, the art
Technical staff can be modified with principle according to the ... of the embodiment of the present invention, therefore, all principles according to the embodiment of the present invention into
Capable various modifications all should be understood as falling into the protection domain of the embodiment of the present invention.
Claims (10)
1. a kind of compound cutting method of deep basement rock, which is characterized in that including：
One end of ajutage is fixed on for drawing the steel wire rope for creeping into the hand handle of grooving to basement rock and boring, by the another of ajutage
One end is connected with air compressor machine, is bored using hand handle and carries out main aperture Drilling processing to deep basement rock, spaced multiple to form tool
Main aperture；
After waiting for that all main aperture Drillings are complete, one end of ajutage is fixed on for drawing to the impact drill of basement rock drilling grooving
On steel wire rope, the other end of ajutage is connected with air compressor machine, using impact drill to the deep basement rock between multiple main apertures
Secondary orifices brill is carried out successively and splits processing, to form the multiple secondary orifices being connected with adjacent main aperture；
After waiting for that multiple secondary orifices brills have been split, multiple main apertures of formation and multiple secondary orifices are carried out using plane set-hammer to repair hole processing, so as to
The vertical square groove of its cell wall is formed after repairing hole processing；
It is wherein, continual that mud is supplied into slot during being bored using hand handle or impact drill creeps into grooving to basement rock,
And blown into slot by air compressor machine and ajutage, it is suspended in mud with the boring mud in toilet bowl；
Wherein, it while being blown into slot by air compressor machine and ajutage, is bored using hand handle or impact drill is to being located under boring mud
The basement rock of side continues to creep into, and prevents hand handle brill or impact drill from repeating to creep into boring mud.
2. according to the method described in claim 1, it is characterized in that, the drill bit of drill bit and the impact drill that the hand handle is bored is
Frictional drill bit.
3. according to the method described in claim 2, it is characterized in that, the frictional drill bit includes drillstock, its top connection institute
The drill body of drillstock bottom end is stated, the drill body includes：
Its top connects the ontology of the drillstock bottom end；
Multiple grinding subassemblies in the ontology bottom end are set；
Be arranged on the body outer wall for being discharged multiple discharge troughs of rock powder, the thick liquid discharge mouth of each of which discharge trough with it is described
Two grinding subassemblies in multiple grinding subassemblies are adjacent；
The multiple arcs body for closing off each grinding subassembly part in ontology bottom end is set.
4. according to the method described in claim 3, it is characterized in that, the grinding subassembly includes：
It is set to the first grinding block of a pair of the ontology bottom end；
It is set to the ontology bottom end and the second grinding block on the inside of a pair of first grinding block；
Wherein, second grinding block is distributed with the pair of first grinding block in Y-shaped.
5. method according to claim 3 or 4, which is characterized in that the body bottom portion has at least three claws, each
The grinding subassembly is placed on a claw.
6. method according to claim 3 or 4, which is characterized in that each arc body is set to the one of the ontology
The edge of a claw.
7. according to the method described in claim 6, it is characterized in that, the medial surface and the valve of the arc body on each claw
The lateral surface of the first grinding block of a pair on pawl is in contact respectively, so that arc body closes a pair of first grinding block.
8. according to the method described in claim 4, it is characterized in that, the lateral surface of second grinding block and the pair of first
There are the reserved mouths of a river for being connected with the thick liquid discharge mouth between the medial surface of grinding block.
9. according to the method described in claim 1, it is characterized in that, the length of the secondary orifices is the 1/2-4/ of the main aperture length
5。
10. according to the method described in claim 1, it is characterized in that, being carried out to deep basement rock using hand handle brill or impact drill
Further include the steps that conveying mud in the slot formed towards Drilling and mud in slot being made to recycle when Drilling processing.
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| CN201610283145.6A CN105971502B (en) | 2016-04-28 | 2016-04-28 | The deep compound cutting method of basement rock |
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| CN201610283145.6A CN105971502B (en) | 2016-04-28 | 2016-04-28 | The deep compound cutting method of basement rock |
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| CN106836189A (en) * | 2017-03-31 | 2017-06-13 | 中国水电基础局有限公司 | Stream plastic state Muddy Bottoms burning into sand stratum construction method for diaphragm walls |
| CN107143281B (en) * | 2017-05-18 | 2019-03-26 | 浙江省地矿建设有限公司 | The method of construction bored concrete pile |
| CN113445916A (en) * | 2021-08-11 | 2021-09-28 | 中冀建勘集团有限公司 | Construction method for correcting hole sweeping deviation of small-diameter deep well bedrock section |
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| CN101586340A (en) * | 2009-06-17 | 2009-11-25 | 广州市第二市政工程有限公司 | Preconditioning process of continuous wall for weak weathering terrane grooving construction |
| CN101892676A (en) * | 2010-07-23 | 2010-11-24 | 中铁四局集团第五工程有限公司 | Percussive drilling construction process for diaphragm wall passing through rock-filled layer in reclamation area |
| CN204024480U (en) * | 2014-07-01 | 2014-12-17 | 中国石油化工集团公司 | Be applicable to the plough cut type PDC drill bit of hard formation |
| CN104264689B (en) * | 2014-09-03 | 2016-03-16 | 广东省基础工程集团有限公司 | The construction method that grooving, pore-forming and large diameter pile are replaced by multiple Small Diameter Pile |
| CN104895130B (en) * | 2015-05-15 | 2017-12-22 | 中铁三局集团有限公司 | One kind is applied to tilt solid rock location construction method of underground continuous wall |
| CN105780783B (en) * | 2016-04-28 | 2018-03-27 | 中国水电基础局有限公司 | High inclination-angle abrupt slope rock forming construction method thereof |
| CN105804057B (en) * | 2016-04-28 | 2019-06-25 | 中国水电基础局有限公司 | Deep basement rock construction method for diaphragm walls |
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