CN108104720B - The non-development blasting machine well drilling technology of hydroenergy storage station pressure pipeline inclined shaft - Google Patents
The non-development blasting machine well drilling technology of hydroenergy storage station pressure pipeline inclined shaft Download PDFInfo
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- CN108104720B CN108104720B CN201711376872.8A CN201711376872A CN108104720B CN 108104720 B CN108104720 B CN 108104720B CN 201711376872 A CN201711376872 A CN 201711376872A CN 108104720 B CN108104720 B CN 108104720B
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Classifications
-
- 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
-
- 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
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
- E21B10/28—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with non-expansible roller cutters
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1085—Wear protectors; Blast joints; Hard facing
-
- 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
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
Abstract
The present invention discloses a kind of non-development blasting machine well drilling technology of hydroenergy storage station pressure pipeline inclined shaft, includes the following steps: (1) advanced pilot hole drilling；(2) the advanced pilot hole being drilled in step (1) is carried out by reaming using mine shaft rising boring technique, forms pilot shaft；(3) pilot shaft excavated in step (2) is excavated into inclines using development machine.The present invention can be realized the construction that underground nobody or few people complete inclined shaft, it is possible to reduce inclined shaft crew numbers in hydroenergy storage station pressure pipeline inclines well drilling technology, while the labor intensity of construction personnel is reduced, working security can also be improved.
Description
Technical field
The present invention relates to shaft with large angle of inclination drilling applications, in particular to a kind of hydroenergy storage station pressure pipeline inclined shaft is non-quick-fried
Broken development machine well drilling technology.
Background technique
With annual 3~4 speed, Pumped Storage Power Station Construction solves the peak valley regulation problem of power grid in China.It takes out
Water storage station needs the lineament using massif, builds upper storage reservoir on massif top, builds lower storage reservoir in massif lower part,
Tunnel shaft and cave, the series engineering for generating electricity, drawing water are built inside massif.
The key points and difficulties of Construction of Pumped Storage Power Station are that the pressure pipeline for generating potential energy, especially high inclination-angle are oblique
Well.The construction of inclined shaft is first constructed pilot shaft using climbing tank method from bottom to top, then digs to form pressure pipe from top to bottom using drilling and blasting method
Road.It either climbs tank method construction pilot shaft or drilling and blasting method digs, require extensive work personnel operation in inclined shaft, working environment
Arduous, labor intensity of workers is high, and safety accident is frequent occurrence.
Summary of the invention
In view of this, the invention reside in provide a kind of storage that draws water that can be realized underground nobody or few people and complete slope construction
Can the non-development blasting machine well drilling technology of power station pressure pipes inclined shaft, it is possible to reduce hydroenergy storage station pressure pipeline inclines at
Inclined shaft crew numbers in well technique, while the labor intensity of construction personnel is reduced, working security can also be improved.
To solve the above problems, the present invention adopts the following technical scheme:
The non-development blasting machine well drilling technology of hydroenergy storage station pressure pipeline inclined shaft, includes the following steps:
(A) on pressure pipeline in horizontal segment, based on the intersection of inclined shaft axis and upper horizontal tunnel axis, to use
The single-piece maximum weight and volume of equipment are foundation, and Design assistant tunnel makes liaison tunnel reach required section；According to pick
Into the steel construction of the weight and volume installation lifting equipment of equipment；Construction meets orientation guide hole drilling machine, anti-well drilling machine and development machine
Concrete foundation required for installing；Installation orientation guide hole drilling machine, is crept into using orientation guide hole drilling machine, forms advanced pilot hole；
(B) anti-well drilling machine is installed, the advanced pilot hole being drilled in step (A) is subjected to reaming using anti-well drilling machine, is formed
Pilot shaft；
(C) construction development machine fore shaft, fore shaft length meet development machine mounting height；Development machine is installed, development machine includes pick
Into machine drill head, support propulsion system, operating console, security protection platform and gib platform；It will be on driving machine frame
Supporting boot plate is supported on fore shaft；The pilot shaft formed in step (B) is excavated into inclines using development machine.
The above-mentioned non-development blasting machine well drilling technology of hydroenergy storage station pressure pipeline inclined shaft utilizes orientation in step (A)
Guide hole drilling machine creeps into the advanced pilot hole that diameter is 200mm from top to bottom, is rectified a deviation using measurement while drilling and helicoid hydraulic motor, reaches and entangle
Deviation proportion is less than 0.3%, under advanced pilot hole and pressure pipeline after horizontal segment perforation, removes orientation guide hole drilling machine.
The above-mentioned non-development blasting machine well drilling technology of hydroenergy storage station pressure pipeline inclined shaft, step (B) include following specific
Step:
(B.1) from top to bottom the advanced pilot hole being drilled in step (A) is expanded using anti-well drilling machine and guide hole drill bit
Hole forms the advanced guide hole of counterboring until anti-well borer drill rod is transferred at the lower end aperture of advanced pilot hole；
(B.2) the guide hole drill bit on anti-well borer drill rod is removed, the reaming that diameter is greater than or equal to 1.4m is then installed
Drill bit carries out reaming to the advanced guide hole of the counterboring formed in step (B.1) from bottom to top, forms diameter more than or equal to 1.4m's
Pilot shaft removes anti-well drilling machine after the completion of reaming.
The above-mentioned non-development blasting machine well drilling technology of hydroenergy storage station pressure pipeline inclined shaft, in step (C), development machine
Power head driving development machine bit and propulsion are crept into from top to bottom using hobboing cutter fractured rock, and broken rock slag is by leading
Well slips under pressure pipeline in horizontal segment.
The above-mentioned non-development blasting machine well drilling technology of hydroenergy storage station pressure pipeline inclined shaft, the guide hole in step (B.1) bore
Head includes: including advanced stabilizer, is stably connected with device, rock bit, drill main body and postposition centralizer, the advanced stabilizer
Upper end be fixedly and coaxially connected with the lower end for being stably connected with device, the upper end for being stably connected with device and the drill main body
Lower end is fixedly and coaxially connected；The fixing end of the rock bit is fixedly connected with the drill main body bottom side of the wall；The postposition
Centralizer is set in the upper end of the drill main body；In the direction of vertical drill main body central axis, outside the postposition centralizer
Diameter is equal with the diameter of the rock bit turning circumference；Gear wheel quantity in the rock bit is 3~5, and along institute
The circumferencial direction for stating drill main body central axis is uniformly distributed；The drill main body is provided centrally with hydrophthalmia；.
The above-mentioned non-development blasting machine well drilling technology of hydroenergy storage station pressure pipeline inclined shaft is set inside the advanced stabilizer
It is equipped with bearing arrangement, the lower end for being stably connected with device is fixedly connected with the inner ring of the bearing arrangement, the bearing arrangement
Outer ring is fixedly connected with the advanced stabilizer；The resistance to roll flute being twist distributed is provided on the advanced stabilizer outer wall
Platform is provided on the platform of resistance to roll flute wear-resisting inserted；Helically type divides the platform of resistance to roll flute on the advanced stabilizer outer wall
Cloth is provided between two adjacent platforms of resistance to roll flute and slips slag through slot；Vertical advanced the described of stabilizer axial direction slips slag
The section of through slot be it is trapezoidal, the width of rebate for slipping slag through slot is greater than the slot bottom width for slipping slag through slot；Adjacent two
It is described it is wear-resisting it is inserted between be provided with slag agitator, it is described wear-resisting inserted on the whole at screw type point on all platforms of resistance to roll flute
Cloth；The spiral angle of the platform of resistance to roll flute 10-45 degree bigger than the wear-resisting inserted spiral angle.
The above-mentioned non-development blasting machine well drilling technology of hydroenergy storage station pressure pipeline inclined shaft, the postposition centralizer include circle
Pole tube type main body and four linear type blades, the linear type blade are evenly arranged on described along the direction of the drill main body central axis
On the outer wall of cylinder cannula-type body；The cylinder cannula-type body is sheathed on the drill main body and passes through in the drill main body
Screwed connection.
The above-mentioned non-development blasting machine well drilling technology of hydroenergy storage station pressure pipeline inclined shaft is installed in step (B.2)
Reaming bit has the anti-fall mechanism of reaming bit, and the anti-fall mechanism of reaming bit includes: anti-fall bolt and anti-fall nut, described
Screw thread is provided on the outer wall of anti-fall bolt upper end, the anti-fall bolt lower end end is fixedly connected with anti-fall component；Central tube with
The mesoporous of bit body junction is big opening end horn mouth directed downwardly, and the mesoporous above and below the horn mouth is cylinder
Shape through-hole；The upper end of the anti-fall bolt sequentially passes through the mesoporous of the central tube and the centre bore of the joint drill rod and in institute
The top for stating joint drill rod is connect with the anti-fall nut thread, and the outer diameter of the anti-fall nut is greater than the hole of the centre bore
Diameter, the anti-fall component is located at the horn mouth and the outer diameter of the anti-fall member lower is greater than horn mouth osculum end
Aperture；The lower end of the joint drill rod is fixedly connected with the upper end of the central tube, the lower end of the central tube and the drill bit
Body is fixedly connected.
The above-mentioned non-development blasting machine well drilling technology of hydroenergy storage station pressure pipeline inclined shaft, the upper end end of the joint drill rod
It is cased with gasket on head, the gasket is located at the lower section of the anti-fall nut and is in the top of the joint drill rod；Described anti-
It is cased with spring on pendant bolt, the spring is arranged between the gasket and the upper surface of the joint drill rod；It is neighbouring described anti-
It falls and offers pin hole on the upper end end of the anti-fall bolt of nut, the vertical anti-fall bolt axis of the axis of the pin hole
Split pin is provided in line and the pin hole.
The above-mentioned non-development blasting machine well drilling technology of hydroenergy storage station pressure pipeline inclined shaft, the anti-fall component includes cylinder
And stage body, the upper end of the cylinder are fixedly connected with the lower end of the stage body, the upper end of the stage body and the anti-fall bolt
Lower end is fixedly connected；On extreme direction, the radius of the stage body circumscribed circle gradually increases under the stage body upper end to the stage body
Greatly；The cylinder is cylindrical body, and the stage body is round estrade；The cylindrical body and round estrade coaxial arrangement；The cylinder
Along circumferential 3 the first grooves being equidistantly equipped with through the cylindrical body upper bottom surface and bottom surface of the cylindrical body on external wall；
Along circumferential 3 the second grooves being equidistantly equipped with through the round estrade bottom surface of the round estrade on the round estrade outer wall；
The upper end of first groove and the conducting of the lower end of second groove；In the slot bottom and the cylindrical body of first groove
Axis is parallel, the slot bottom of second groove and the axis parallel of the round estrade；First groove and described second recessed
Slot is U-lag；The upper bottom surface diameter of the round estrade is less than the bell-mouthed osculum end diameter, the bottom of the round estrade
Face diameter is less than the bell-mouthed big opening end diameter.
The beneficial effects of the present invention are:
1, the present invention proposes by the way of anti-well drilling machine+development machine, can be realized underground nobody or few people and completes inclined shaft
Construction, meet 50~90 ° of inclination angle, length is less than the inclined shaft and vertical shaft pressure pipeline of 200m, solve existing water-storage electricity
Staff is more in inclined shaft in pressure pipeline inclines well drilling technology of standing, labor intensity is high, operating environment is arduous, safety condition
The problems such as poor.
2, reaming bit is suitable for having shaft with large angle of inclination pilot shaft under the conditions of the advanced guide hole of orientation to creep into, inside advanced stabilizer
Bearing arrangement is set, the frictional resistance in drilling process is reduced；The outside arrangement wear-resisting inserted and resistance to roll flute that helically type is distributed
Platform falls convenient for washing away for kata-rocks slag；Drill main body is arranged postposition centralizer, and drill bit can be effectively improved in drilling process
Stability prevents drilling tool from tilting；It is small with drill bit frictional resistance, deslagging is fast for circulation, drilling process is stablized.
3,3 grooves are milled on the anti-fall component of anti-fall mechanism, by the radially uniform distribution of cylindrical body, meet intensity and by
While force request, not only bolt quality can reduce convenient for conveying well-flushing medium；Having for anti-fall bolt upper end setting is flexible
The buffer spring of characteristic can effectively slow down drill bit after drill rod breaking and fall the impact force of generation, and there is certain conveying well-flushing to be situated between
Matter effect；During reaming is crept into, drill rod breaking such as occurs, anti-fall mechanism can effectively hold reaming bit and central tube,
It avoids falling and causes safety accident.Meanwhile disconnected bar accident is found by the irregular change of bit pressure and torque in terrestrial operation platform,
It is handled in time using corresponding measure.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the anti-fall mechanism of reaming bit；
Fig. 2 is the structural schematic diagram of the anti-fall component of the anti-fall mechanism of reaming bit.
In figure: the anti-fall bolt of 1-1-；The anti-fall component of 1-2-；The anti-fall nut of 1-3-；1-4- gasket；1-5- pin hole；1-6- bullet
Spring；1-7- cylindrical body；1-8- round estrade；The first groove of 1-9-；The second groove of 1-10-；1-11- bit body；1-12- central tube；
1-13- joint drill rod；1-14- centre bore.
Fig. 3 is the structural schematic diagram of reaming bit；
Fig. 4 is the structural schematic diagram of another visual direction of reaming bit；
Fig. 5 is the structural schematic diagram of the advanced stabilizer of reaming bit.
In figure: 2-1- drill main body；2-2- rock bit；The advanced stabilizer of 2-3-；2-4- is stably connected with device；2-5- postposition
Centralizer；2-51- linear type blade；2-6- hydrophthalmia；2-7- bearing arrangement；2-8- is wear-resisting inserted；The 2-9- platform of resistance to roll flute；2-10-
Slip slag through slot；2-11- slag agitator；2-12- orients advanced guide hole；Guide hole is crept into 2-13- reaming.
Fig. 6 is hydroenergy storage station pressure pipeline structural schematic diagram.
Fig. 7 is that auxiliary construction Chamber Construction and advanced pilot hole creep into schematic diagram.
Fig. 8 is advanced pilot hole first time reaming schematic diagram.
Fig. 9 is second of reaming schematic diagram of advanced pilot hole.
Figure 10 is that development machine is drilled to inclines schematic diagram.
In figure: flat section on 3-1- pressure pipeline, 3-2- pressure pipeline lower curved section, flat section under 3-3- pressure pipeline, 3-4- cave
Room, 3-5- support lifting beam, and 3-6- orients guide hole drilling machine, and 3-7- orients guide hole, 3-8- inclined shaft axis, the upper horizontal tunnel of 3-9- in advance
Road axis, the anti-well drilling machine of 3-10-, the advanced guide hole of 3-11- counterboring, the anti-well borer drill rod of 3-12-, 3-13- reaming bit, 3-14-
Development machine, 3-15- operating console, 3-16- gib platform, 3-17- security protection platform, 3-18- fore shaft, 3-19- are led
Well, 3-20- development machine drill bit, 3-21- support propulsion system, 3-22- inclines.
Specific embodiment
Scheme in the present invention to clearly illustrate, is given below preferred embodiment and is described with reference to the accompanying drawings.
As shown in Fig. 6 to Figure 10, the non-development blasting machine well drilling technology of the present embodiment hydroenergy storage station pressure pipeline inclined shaft,
Include the following steps:
(A) on pressure pipeline in horizontal segment 3-1, using the intersection of inclined shaft axis 3-8 and upper horizontal tunnel axis 3-9 as base
Plinth, using the single-piece maximum weight and volume for using equipment as foundation, Design assistant tunnel is disconnected required for reaching liaison tunnel
Face；The steel construction of lifting equipment is installed according to the weight and volume of heading equipment；Construction meets orientation guide hole drilling machine 3-6, anti-well
Concrete foundation required for drilling machine 3-10 and development machine 3-14 is installed；Installation orientation guide hole drilling machine 3-6, is bored using orientation guide hole
Machine 3-6 creeps into the advanced pilot hole 3-7 that diameter is 200mm from top to bottom, is rectified a deviation using measurement while drilling and helicoid hydraulic motor, reaches and entangle
Deviation proportion is less than 0.3%, at advanced pilot hole 3-7 and pressure pipeline after horizontal segment 3-3 perforation, removes orientation guide hole drilling machine 3-
6。
(B) anti-well drilling machine 3-10 is installed, following two steps are specifically included:
(B.1) from top to bottom the advanced pilot hole 3-7 being drilled in step (A) is carried out using anti-well drilling machine and guide hole drill bit
Reaming forms the advanced guide hole 3- of counterboring until anti-well borer drill rod 3-12 is transferred at the lower end aperture of advanced pilot hole 3-7
11；
(B.2) the guide hole drill bit on anti-well borer drill rod 3-12 is removed, then installs diameter more than or equal to 1.4m's
Reaming bit 3-13, to step, (the advanced guide hole 3-11 of the counterboring formed in B.1 carries out reaming, forms diameter and is greater than from bottom to top
Or the pilot shaft 3-19 equal to 1.4m, anti-well drilling machine 3-10 is removed after the completion of reaming.
(C) construct development machine fore shaft 3-18, and fore shaft 3-18 length meets development machine 3-14 mounting height；Development machine 3- is installed
14, development machine 3-14 include development machine drill bit 3-20, support propulsion system 3-21, operating console 3-15, security protection platform
3-17 and gib platform 3-16；The supporting boot plate tunneled on machine frame is supported on fore shaft；Security protection platform 3-17
Positioned at the top of gib platform 3-16, operating console 3-15 is located at the lower section of gib platform 3-16, and support promotes
System 3-21 is located at the top of development machine drill bit 3-20 and is drivingly connected in development machine drill bit 3-20.
The power head driving development machine drill bit 3-20 rotation and propulsion of development machine 3-14, using hobboing cutter fractured rock, by upper
It is drilled down into, the pilot shaft 3-19 formed in step (B) is excavated into inclines 3-22；Broken rock slag is slipped by pilot shaft 3-19
Under to pressure pipeline in horizontal segment 3-3.After inclines 3-22 is scraped out, gib platform 3-16 and security protection are utilized
Platform 3-17 carries out supporting to the borehole wall of inclines 3-22, then pours to the inclines 3-22 borehole wall.
As shown in Figure 3 and Figure 4, the guide hole drill bit in step (B.1) include advanced stabilizer 2-3, be stably connected with device 2-4,
Rock bit 2-2, drill main body 2-1 and postposition centralizer 2-5, the upper end of the advanced stabilizer 2-3 are stably connected with described
The lower end of device 2-4 is fixedly and coaxially connected, and the lower end of the upper end for being stably connected with device 2-4 and the drill main body 2-1 are coaxially solid
Fixed connection；The fixing end of the rock bit 2-2 is fixedly connected with the drill main body 2-1 bottom side of the wall；The postposition righting
Device 2-5 is set in the upper end of the drill main body 2-1；In the direction of vertical drill main body 2-1 central axis, the postposition centralizer
The outer diameter of 2-5 is equal with the diameter of the rock bit 2-2 turning circumference.Gear wheel quantity on the rock bit 2-2 is 3~
It 5, and be uniformly distributed along the circumferencial direction of the drill main body 2-1 central axis, when rock bit 2-2 is three, presss from both sides each other
Angle is 60 °；When rock bit 2-2 is four, using cross distribution, mutual angle is 90 °；When rock bit 2-2 be five, that
This angle is 72 °；And the drill main body 2-1 is provided centrally with hydrophthalmia 2-6, can use and passes through by the hydrophthalmia 2-6
The water with pressure of drilling rod central tube cleans bottom hole, washes away deslagging.
The postposition centralizer 2-5 includes cylinder cannula-type body and four linear type blade 2-51, the linear type blade
2-51 is evenly arranged on the outer wall of the cylinder cannula-type body along the direction of 1 central axis of drill main body；The cylinder cast master
Body is sheathed on the drill main body 2-1 and in the drill main body 2-1 by screwed connection, effectively improves the steady of drill bit drilling
It is qualitative.
As shown in Figure 1 to Figure 3, the advanced stabilizer 2-3 is internally provided with bearing arrangement 2-7, described to be stably connected with device
The lower end of 2-4 is fixedly connected with the inner ring of the bearing arrangement 2-7, the outer ring of the bearing arrangement 2-7 and the advanced stabilization
Device 2-3 is fixedly connected.The platform of the resistance to roll flute 2-9 being twist distributed is provided on the advanced stabilizer 2-3 outer wall, it is described wear-resisting
Wear-resisting inserted 2-8 is provided on tooth platform 2-9.Helically type divides the platform of the resistance to roll flute 2-9 on the advanced stabilizer 2-3 outer wall
Cloth is provided between the platform of the resistance to roll flute 2-9 of adjacent two and slips slag through slot 2-10.The vertical advanced stabilizer 2-3 is axial
The section for slipping slag through slot 2-10 be it is trapezoidal, the width of rebate for slipping slag through slot 2-10, which is greater than, described slips slag through slot 2-10
Slot bottom width.Slag agitator 2-11 is provided between the wear-resisting inserted 2-8 of adjacent two, on all platform of resistance to roll flute 2-9
The wear-resisting inserted 2-8 is distributed at screw type on the whole.The spiral angle of the platform of the resistance to roll flute 2-9 is than the wear-resisting inserted 2-
The big 10-45 degree of 8 spiral angle.
It is described slip slag through slot 2-10 and slag agitator 2-11 be conducive to reaming drilling during, broken rock slag can pass through institute
It states slag agitator 2-11 and the slag through slot 2-10 that slips is discharged into the advanced guide hole of orientation, and the wear-resisting inserted 2-8 can be reduced
The advanced stabilizer 2-3 and the contact area for orienting advanced guide hole, and then reduce advanced stabilizer 2-3 and orient advanced guide hole
The abrasion of advanced stabilizer 2-3 is effectively reduced in frictional resistance between wall, hence it is evident that improves drilling efficiency.And the slag that slips leads to
The slot 2-10 and slag agitator 2-11 so that bulk rock slag and fritter rock slag in rock slag are separated slides to orienting in advanced guide hole,
And then rock slag is avoided to be stuck in described slip in the slag through slot 2-10 or slag agitator 2-11.It is described and during reaming drilling
Advanced stabilizer 2-3 can as hobboing cutter, the inner ring of the bearing arrangement 2-7 and it is described be stably connected with device 2-4 rotation and
The shell of the advanced stabilizer 2-3 and the wear-resisting inserted 2-8 do not turn, so can reduce the advanced stabilizer 2-3 with
The frictional resistance between advanced guide hole hole wall is oriented, the abrasion of the advanced stabilizer 2-3 is effectively reduced, hence it is evident that improves drilling effect
Rate.
In using the present invention, the widened drill bit structure of the advanced guide hole of shaft with large angle of inclination of the present invention is now mounted on drilling rod
Lower end, and the lower end of the advanced stabilizer 2-3 is put into the advanced pilot hole of orientation, then start drilling machine, it is of the invention at this time
The widened drill bit structure of the advanced guide hole of shaft with large angle of inclination rotates under the drive of drilling rod, starts to expand the advanced guide hole of orientation
Hole.The rock bit 2-2 is crushed the rock slag that gets off and slips slag through slot 2-10 and the slag agitator 2-11 falls into orientation via described
In advanced guide hole, and discharge is exported via the lower end for orienting advanced guide hole.And advanced guide hole is being oriented using the present invention
When expansion, the advanced stabilizer 2-3 will not be rotated with the rotation of the drill main body 2-1, thus will not be advanced to orienting
Guide hole hole wall generates biggish destruction, and then avoids orienting advanced guide hole hole wall and collapse.And it is described slip slag through slot 2-10 and
The slag agitator 2-11 is then conducive to rock slag and is carried out out of pilot shaft by water.
As depicted in figs. 1 and 2, the reaming bit installed in step (B.2) has the anti-fall mechanism of reaming bit, the expansion
The anti-fall mechanism of drill includes anti-fall bolt 1-1 and anti-fall nut 1-3, is provided with spiral shell on the outer wall of the upper end anti-fall bolt 1-1
Line, the lower end the anti-fall bolt 1-1 end are fixedly connected with anti-fall component 1-2；Central tube 1-12 and the junction bit body 1-11
Mesoporous be big opening end horn mouth directed downwardly, the mesoporous above and below the horn mouth is cylindrical hole；It is described
The upper end of anti-fall bolt 1-1 sequentially pass through the central tube 1-12 mesoporous and the joint drill rod 1-13 centre bore 1-14 simultaneously
It is threadedly coupled in the top of the joint drill rod 1-13 with the anti-fall nut 1-3, the outer diameter of the anti-fall nut 1-3 is greater than institute
The aperture of centre bore 1-14 is stated, the anti-fall component 1-2 is located at the horn mouth and the outer diameter of the lower part anti-fall component 1-2
Greater than the aperture at horn mouth osculum end；The fixed company in the lower end of the joint drill rod 1-13 and the upper end of the central tube 1-12
It connects, the lower end of the central tube 1-12 is fixedly connected with the bit body 1-11.
It is damaged in order to avoid the impact force that drill rod breaking generates generates the joint drill rod 1-13, in the present embodiment, institute
State and be cased with gasket 1-4 on the upper end end of joint drill rod 1-13, the gasket 1-4 be located at the lower section of the anti-fall nut 1-3 and
It is in the top of the joint drill rod 1-13.The gasket 1-4 can increase contact area, reduce pressure, prevent from loosening, and protect
Protect the joint drill rod 1-13 and the anti-fall mechanism 1-2.
Spring 1-6 is cased on the anti-fall bolt 1-1, the spring 1-6 is arranged in the gasket 1-4 and the connector
Between the upper surface of drilling rod 1-13.The setting of the spring 1-6 can slow down bit body after drill rod breaking and fall the impact of generation
Power, improves the service life of the anti-fall mechanism of drill bit of the present invention, and the spring 1-6 is the buffer spring with expansion performance.
The anti-fall nut 1-3 occurs to loosen in use even from the anti-fall bolt 1-1 in order to prevent simultaneously
Upper end falls off, and in the present embodiment, offers pin on the upper end end of the anti-fall bolt 1-1 of the neighbouring anti-fall nut 1-3
Split pin is provided in the vertical central axes anti-fall bolt 1-1 of the axis of hole 1-5, the pin hole 1-5 and the pin hole 1-5.
In order to generate effective buffering to the fall impact force of generation of drill bit after drill rod breaking, and reduce in described
The damage of heart pipe 1-12 and the anti-fall bolt 1-1 and anti-fall component 1-2.In the present embodiment, the anti-fall component 1-2 packet
Include cylinder and stage body, the upper end of the cylinder is fixedly connected with the lower end of the stage body, the upper end of the stage body with it is described anti-fall
The lower end of bolt 1-1 is fixedly connected；From under the stage body upper end to the stage body on extreme direction, the half of the stage body circumscribed circle
Diameter is gradually increased.The cylinder is cylindrical body 1-7, and the stage body is round estrade 1-8；The cylindrical body 1-7 and the round estrade
1-8 coaxial arrangement.Run through the cylindrical body 1-7 along circumferential be equidistantly equipped with of the cylindrical body 1-7 on the cylindrical body 1-7 outer wall
3 the first groove 1-9 of upper bottom surface and bottom surface；It is circumferentially equidistantly set on the round estrade 1-8 outer wall along the round estrade 1-8
There are 3 the second groove 1-10 through the round estrade 1-8 bottom surface；The upper end of the first groove 1-9 and described second recessed
The lower end of slot 1-10 is connected.The slot bottom of the first groove 1-9 and the axis parallel of the cylindrical body 1-7, described second is recessed
The axis parallel of the slot bottom of slot 1-10 and the round estrade 1-8.The first groove 1-9 and the second groove 1-10 are
U-lag.
In order to enable the horn mouth and the side of the round estrade 1-8 to be preferably bonded, in order to the center
Pipe 1-12 tube body and the anti-fall bolt and the anti-fall component 1-2 are protected, the upper bottom surface diameter of the round estrade 1-8
Less than the bell-mouthed osculum end diameter, it is straight that the bottom surface diameter of the round estrade 1-8 is less than the bell-mouthed big opening end
Diameter.
In order to improve the impact resistance being threadedly coupled between the anti-fall bolt 1-1 and the anti-fall nut 1-3, this implementation
In example, it can be set in the upper end of the anti-fall bolt 1-1 there are two the anti-fall nut 1-3.
Wherein, the setting of the first groove 1-9 and the second groove 1-10, so that the anti-fall component 1-2 is full
While sufficient intensity and force request, not only bolt 1-1 mass can reduce convenient for conveying well-flushing medium；The first groove 1-
The depth of 9 and the second groove 1-10 is less than the cylindrical body of position or the cross-sectional diameter of round estrade.
When carrying out raising boring using reaming bit, the central tube 1-12 stress is complex, in addition to by drilling rod
Pulling force, rotation torque, also by hole scattering, drill bit broken rock operating unevenly generate additional bending moment effect, so as to cause
The central tube 1-12 is easy to appear fatigue rupture, the especially described central tube 1-12 and joint drill rod 1-13, described connects
Head drilling rod 1-13 and the thread stablized between drilling rod are easier fatigue fracture occur.During reaming drilling, such as occur
Drill rod breaking, the present invention can effectively hold the bit body 1-11 and central tube 1-12, avoid falling and cause safety accident.Together
When, disconnected bar accident is found by the irregular change of bit pressure and torque in terrestrial operation platform, in time using at corresponding measure
Reason.
In the present embodiment, the anti-fall bolt 1-1 and the anti-fall component 1-2 select the bar of superior alloy steel integrally to add
Work forms.
Above-described embodiment is only intended to clearly illustrate the invention example, and not has to the invention
The restriction of body embodiment.For those of ordinary skill in the art, it can also make on the basis of the above description
Other various forms of variations or variation.There is no necessity and possibility to exhaust all the enbodiments.It is all of the invention
Guarantor of any obvious changes or variations extended out within spirit and principle still in the invention claim
It protects among range.
Claims (7)
1. the non-development blasting machine well drilling technology of hydroenergy storage station pressure pipeline inclined shaft, which comprises the steps of:
(A) on pressure pipeline in horizontal segment (3-1), the intersection with inclined shaft axis (3-8) and upper horizontal tunnel axis (3-9) is
Basis, using the single-piece maximum weight and volume for using equipment as foundation, Design assistant tunnel, required for reaching liaison tunnel
Section；The steel construction of lifting equipment is installed according to the weight and volume of heading equipment；Construction satisfaction orientation guide hole drilling machine (3-6),
Concrete foundation required for anti-well drilling machine (3-10) and development machine (3-14) are installed；Installation orientation guide hole drilling machine (3-6) utilizes
Guide hole drilling machine (3-6) drilling is oriented, advanced pilot hole (3-7) is formed；
(B) anti-well drilling machine (3-10), the advanced pilot hole (3-7) that will be drilled in step (A) using anti-well drilling machine (3-10) are installed
Reaming is carried out, is formed pilot shaft (3-19)；
(C) it constructs development machine fore shaft (3-18), fore shaft (3-18) length meets development machine (3-14) mounting height；Development machine is installed
(3-14), development machine (3-14) include development machine drill bit (3-20), support propulsion system (3-21), operating console (3-15),
Security protection platform (3-17) and gib platform (3-16)；The supporting boot plate tunneled on machine frame is supported on fore shaft；
The pilot shaft (3-19) formed in step (B) is excavated at inclines (3-22) using development machine；
In step (A), the advanced pilot hole (3- that diameter is 200mm is crept into from top to bottom using orientation guide hole drilling machine (3-6)
7) it, is rectified a deviation using measurement while drilling and helicoid hydraulic motor, reaches correction slope less than 0.3%, in advanced pilot hole (3-7) and pressure pipe
Under road after horizontal segment (3-3) perforation, orientation guide hole drilling machine (3-6) is removed；
Step (B) comprises the following specific steps that:
(B.1) from top to bottom the advanced pilot hole (3-7) being drilled in step (A) is expanded using anti-well drilling machine and guide hole drill bit
Hole forms the advanced guide hole of counterboring until anti-well borer drill rod (3-12) is transferred at the lower end aperture of advanced pilot hole (3-7)
(3-11)；
(B.2) the guide hole drill bit on anti-well borer drill rod (3-12) is removed, the expansion that diameter is greater than or equal to 1.4m is then installed
Drill (3-13) carries out reaming to the advanced guide hole of counterboring (3-11) formed in step (B.1) from bottom to top, and it is big to form diameter
In or equal to 1.4m pilot shaft (3-19), anti-well drilling machine (3-10) is removed after the completion of reaming；
The reaming bit installed in step (B.2) has the anti-fall mechanism of reaming bit, and the anti-fall mechanism of reaming bit includes:
Anti-fall bolt (1-1) and anti-fall nut (1-3) are provided with screw thread, the anti-fall spiral shell on anti-fall bolt (1-1) the upper end outer wall
The lower end end bolt (1-1) is fixedly connected with anti-fall component (1-2)；The mesoporous of central tube (1-12) and the junction bit body (1-11)
For big opening end horn mouth directed downwardly, the mesoporous above and below the horn mouth is cylindrical hole；The anti-fall spiral shell
The upper end of bolt (1-1) sequentially pass through the mesoporous of the central tube (1-12) and the centre bore (1-14) of joint drill rod (1-13) and
The top of the joint drill rod (1-13) is threadedly coupled with the anti-fall nut (1-3), and the outer diameter of the anti-fall nut (1-3) is big
In the aperture of the centre bore (1-14), the anti-fall component (1-2) is located at the horn mouth and the anti-fall component (1-2)
The outer diameter of lower part is greater than the aperture at horn mouth osculum end；The lower end of the joint drill rod (1-13) and the central tube (1-
12) upper end is fixedly connected, and the lower end of the central tube (1-12) is fixedly connected with the bit body (1-11).
2. the non-development blasting machine well drilling technology of hydroenergy storage station pressure pipeline inclined shaft according to claim 1, feature
It is, in step (C), power head driving development machine drill bit (3-20) rotation and propulsion of development machine (3-14), using hobboing cutter
Fractured rock is crept into from top to bottom, and broken rock slag is slipped in horizontal segment under pressure pipeline (3-3) by pilot shaft.
3. the non-development blasting machine well drilling technology of hydroenergy storage station pressure pipeline inclined shaft according to claim 1 to 2,
It is characterized in that, the guide hole drill bit in step (B.1) includes: advanced stabilizer (2-3), is stably connected with device (2-4), rock bit
The upper end of (2-2), drill main body (2-1) and postposition centralizer (2-5), the advanced stabilizer (2-3) is stably connected with described
The lower end of device (2-4) is fixedly and coaxially connected, the lower end of the upper end for being stably connected with device (2-4) and the drill main body (2-1)
It is fixedly and coaxially connected；The fixing end of the rock bit (2-2) is fixedly connected with the drill main body (2-1) bottom side of the wall；Institute
State the upper end that postposition centralizer (2-5) is set in the drill main body (2-1)；In the side of vertical drill main body (2-1) central axis
To the outer diameter of the postposition centralizer (2-5) is equal with the diameter of the rock bit (2-2) turning circumference；The rotary drill
Gear wheel quantity on head (2-2) is 3~5, and is uniformly distributed along the circumferencial direction of the drill main body (2-1) central axis；
The drill main body (2-1) is provided centrally with hydrophthalmia (2-6).
4. the non-development blasting machine well drilling technology of hydroenergy storage station pressure pipeline inclined shaft according to claim 3, feature
It is, the advanced stabilizer (2-3) is internally provided with bearing arrangement (2-7), the lower end for being stably connected with device (2-4) and institute
The inner ring for stating bearing arrangement (2-7) is fixedly connected, and the outer ring of the bearing arrangement (2-7) and the advanced stabilizer (2-3) are solid
Fixed connection；The platform of resistance to roll flute (2-9) being twist distributed, the resistance to roll flute are provided on advanced stabilizer (2-3) outer wall
Wear-resisting inserted (2-8) is provided on platform (2-9)；The platform of resistance to roll flute (2-9) is in spiral shell on advanced stabilizer (2-3) outer wall
Rotation type is distributed, and is provided between the platform of resistance to roll flute (2-9) of adjacent two and is slipped slag through slot (2-10)；The vertical advanced stabilization
The axial section for slipping slag through slot (2-10) of device (2-3) be it is trapezoidal, the width of rebate for slipping slag through slot (2-10) is greater than
The slot bottom width for slipping slag through slot (2-10)；Slag agitator (2- is provided between adjacent two wear-resisting inserted (2-8)
11), wear-resisting inserted (2-8) on all platforms of resistance to roll flute (2-9) is distributed at screw type on the whole；The platform of resistance to roll flute
The spiral angle of (2-9) 10-45 degree bigger than the spiral angle of wear-resisting inserted (2-8).
5. the non-development blasting machine well drilling technology of hydroenergy storage station pressure pipeline inclined shaft according to claim 4, feature
It is, the postposition centralizer (2-5) includes cylinder cannula-type body and four linear type blades (2-51), the linear type blade
(2-51) is evenly arranged on the outer wall of the cylinder cannula-type body along the direction of the drill main body (2-1) central axis；The cylinder
Cannula-type body is sheathed on the drill main body (2-1) and passes through screwed connection with the drill main body (2-1).
6. the non-development blasting machine well drilling technology of hydroenergy storage station pressure pipeline inclined shaft according to claim 1, feature
It is, is cased with gasket (1-4) on the upper end end of the joint drill rod (1-13), the gasket (1-4) is located at the anti-fall spiral shell
The lower section of female (1-3) and the top for being in the joint drill rod (1-13)；Spring (1- is cased on the anti-fall bolt (1-1)
6), the spring (1-6) is arranged between the gasket (1-4) and the upper surface of the joint drill rod (1-13)；It is neighbouring described
It is offered pin hole (1-5) on the upper end end of the anti-fall bolt (1-1) of anti-fall nut (1-3), the axis of the pin hole (1-5)
Split pin is provided in the vertical anti-fall bolt central axes (1-1) of line and the pin hole (1-5).
7. the non-development blasting machine well drilling technology of hydroenergy storage station pressure pipeline inclined shaft according to claim 6, feature
It is, the anti-fall component (1-2) includes cylinder and stage body, and the upper end of the cylinder is fixedly connected with the lower end of the stage body,
The upper end of the stage body is fixedly connected with the lower end of the anti-fall bolt (1-1)；From under the stage body upper end to the stage body
On extreme direction, the radius of the stage body circumscribed circle is gradually increased；The cylinder is cylindrical body (1-7), and the stage body is round estrade
(1-8)；The cylindrical body (1-7) and the round estrade (1-8) coaxial arrangement；Along the circle on cylindrical body (1-7) outer wall
Circumferential 3 the first grooves (1-9) being equidistantly equipped with through the cylindrical body (1-7) upper bottom surface and bottom surface of cylinder (1-7)；Institute
It states and runs through the round estrade (1-8) bottom surface along circumferential be equidistantly equipped with of the round estrade (1-8) on round estrade (1-8) outer wall
3 the second grooves (1-10)；The upper end of first groove (1-9) and the lower end conducting of second groove (1-10)；It is described
The slot bottom of first groove (1-9) and the axis parallel of the cylindrical body (1-7), the slot bottom of second groove (1-10) and institute
State the axis parallel of round estrade (1-8)；First groove (1-9) and second groove (1-10) are U-lag；It is described
The upper bottom surface diameter of round estrade (1-8) is less than the bell-mouthed osculum end diameter, the bottom surface diameter of the round estrade (1-8)
Less than the bell-mouthed big opening end diameter.
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| CN110195597B (en) * | 2019-06-14 | 2024-04-09 | 中国水利水电建设工程咨询西北有限公司 | Pumped storage chamber suitable for TBM construction and construction method |
| CN112012751B (en) * | 2020-08-24 | 2022-08-16 | 中国水利水电第七工程局有限公司 | Precise excavation method for gentle slope inclined shaft |
| CN112412467B (en) * | 2020-12-03 | 2022-08-30 | 中铁十二局集团有限公司 | Construction method of ventilation vertical shaft (200-600 m) with extra-long highway tunnel by' well reversing method |
| CN115095277B (en) * | 2022-06-30 | 2023-04-07 | 中国石油天然气集团有限公司 | Magnetic positioning system and method for tunnel of energy storage power station |
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