CN104453717A - Long auger drilling and bottom expanding device and expanded anchor rod construction method - Google Patents
Long auger drilling and bottom expanding device and expanded anchor rod construction method Download PDFInfo
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- CN104453717A CN104453717A CN201410691456.7A CN201410691456A CN104453717A CN 104453717 A CN104453717 A CN 104453717A CN 201410691456 A CN201410691456 A CN 201410691456A CN 104453717 A CN104453717 A CN 104453717A
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- reaming
- bit body
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- wing plate
- oil cylinder
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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
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
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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
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0038—Production methods using an auger, i.e. continuous flight type
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Abstract
The invention relates to a long auger drilling and bottom expanding device and an expanded anchor rod construction method. The long auger drilling and bottom expanding device comprises an auger drilling rod with an auger blade and a front guide drill bit. The upper portion of the auger drilling rod is connected with a power box of a pile machine through a rotary connector, a slurry inlet is formed in the rotary connector, motors are arranged on the two sides of the upper portion of the power box, a broaching oil cylinder support and a broaching oil cylinder are arranged in the middle of the upper portion of the power box, a connecting lug is arranged in the middle of the upper portion of the oil cylinder support, the broaching oil cylinder is hinged to the broaching oil cylinder support through the connecting lug, the lower end of a piston rod of the broaching oil cylinder is connected with the top of a broaching connecting rod through a transfer connector, the lower portion of the broaching connecting rod is arranged in an axial central through hole of the auger drilling rod, a rotary broaching device is arranged between the front guide drill bit and the auger drilling rod, the lower end of the broaching connecting rod is connected with the rotary broaching device, and the lower portion of the rotary broaching device is connected with the front guide drill bit. According to the long auger drilling and bottom expanding device and the expanded anchor rod construction method, noise, vibration and slurry are avoided in the construction process, an anchoring body is high in strength, good in quality, low in cost, high in working efficiency and good in environmental friendliness, and the uplift bearing capability of an anchor rod is high.
Description
Technical field
The invention belongs to engineering construction technology field, relate to the construction that a kind of long auger expands end device and utilizes this device construction enlarging anchor rod.
Background technology
In geotechnical engineering field, many side slopes, Support of Foundation Pit Excavation engineering, and in the permanent structure of resisting buoyancy of foundation, all need to adopt anchoring.The isodiametric anchoring technique of total length that still a large amount of employing is traditional at present, in the stratum that engineering geological conditions is comparatively complicated, as being arranged at the anchor pole in weak scall, restrict by factors such as anchoring section frictional force are lower, cause anchor pole anti-pulling capacity on the low side, deflection is comparatively large, and traditional anchoring technique adopts the increase length of unit bolt or the method for pipe-following drilling to solve problems usually, thus cause the rising of construction cost and the waste of anchor pole material, be unfavorable for energy-saving and emission-reduction.At present, China has developed some and has expanded body anchoring construction technique, usual employing mud off mechanical hole reaming or high-pressure rotary-spray reaming, place the pile-formation process of anchor rod body slip casting in hole again, the former generally will design in more stable stratum, want secondary UR drilling tool after common section of anchor hole pore-forming, speed of application is slow, and construction cost is high; The geological conditions that the latter adapts to is comparatively extensive, but will complete churning reaming and need repeatedly landing drilling tool, and produces a large amount of discarded slurries in reaming procedure, contaminated environment and construction cost is high.A kind of technology long spire construction technology combined with reaming construction technology is not also had in prior art, and enlarging anchor rod construction can be applied to, shorten rock-bolt length to reach, improve single anchor anti-pulling capacity, solve the object of problem of speed of application, mud contamination and the construction benefit such as vibration, noise and environmental protection aspect simultaneously.
Summary of the invention
The present invention is exactly to solve the above-mentioned problems in the prior art, a kind of long auger is provided to expand the construction laying anchor rod body in end device and hole after perfusion mortar, when carrying out the reaming of reaming section to overcome in existing construction technology, need secondary UR drilling tool, speed of application is slow, construction cost is high, and pore-forming, mud circulation is used to produce the problem of a large amount of useless slurry contaminated environment in reaming procedure, enlarging anchor rod construction work progress noiselessness provided by the present invention, friction, without mud, anchoring body intensity is high, quality is good, cost is low, work efficiency is high, the feature such as environmental protection more, anchor pole anti-pulling capacity improves greatly.
The present invention also provides a kind of construction utilizing long auger to expand end device construction enlarging anchor rod.
For achieving the above object, the present invention can take following technical proposals:
A kind of long auger Counterboring apparatus, comprise the auger stem being provided with helical blade, leading drill bit, the top of described auger stem is connected by the headstock of swivel joint with stake machine, swivel joint is provided with stock inlet, both sides, headstock top are provided with motor, reaming cylinder bracket is provided with in the middle of headstock top, reaming oil cylinder, engaging lug is provided with in the middle of the top of described cylinder bracket, reaming oil cylinder by engaging lug and reaming cylinder bracket hinged, the piston-rod lower end of reaming oil cylinder is connected by a point movement connector with reaming connecting rod top, described reaming connecting rod bottom is arranged in the axial central through hole of auger stem, revolution Counterboring apparatus is provided with between described leading drill bit and auger stem, the lower end of reaming connecting rod is connected with revolution Counterboring apparatus, revolution Counterboring apparatus bottom is connected with leading drill bit.
Described revolution Counterboring apparatus comprises on reaming bit body manages, manage under reaming bit body, and manage respectively with on reaming bit body, the reaming wing that under reaming bit body, pipe connects, on described reaming bit body, pipe upper end is connected with auger stem, under reaming bit body, pipe lower end is connected with leading drill bit, the described reaming wing is provided with many groups, many groups reaming wing is uniform around auger stem axis, the described reaming wing comprises upper flange, lower wing plate, hinged outside pipe on the upper end of described upper flange and reaming bit body, the length of each group of upper flange is different, the pin joint of each group of upper flange is not on sustained height, wherein the pin joint of the upper flange that length is longer is positioned at below, hinged outside pipe under the lower end of lower wing plate and reaming bit body, pin joint is in same level, the lower end of upper flange and the upper end thereof of lower wing plate, under described reaming bit body on the external cylindrical surface of pipe and reaming bit body pipe inner hole and move axially along endoporus, under reaming bit body, the bottom of pipe is provided with grout outlet.
On described reaming bit body, pipe is provided with internal spline, and under reaming bit body, pipe is provided with external splines, and on reaming bit body, pipe is connected by internal spline, external splines matched in clearance with pipe under reaming bit body.
A kind of long auger enlarging anchor rod construction, comprises the following steps:
1. first hole with the auger stem of the leading drill bit of band and revolution Counterboring apparatus, make reaming oil cylinder piston be in the state of stretching out, the reaming wing plate of revolution Counterboring apparatus is all in rounding state, holes to prescribed depth;
2. after having holed, rig continues original place and rotates, start oil pump simultaneously and regain reaming oil cylinder piston gradually, under pull-up reaming connecting rod makes reaming bit body, pipe moves up in pipe on reaming bit body, upper flange, the lower wing plate of the drive reaming wing strut gradually to assigned position, while auger stem rotates, upper flange, lower wing plate are flared to counter bore diameter gradually;
3. then on revolve and carry brill, auger stem gradually on carried Counterboring apparatus and stirred and expansion to hole wall at the bottom of the expansion of foot of hole, the reaming wing plate of different group expands the boring of different-diameter size respectively in hole, the diameter cylinders that final formation and the longest reaming wing plate enlarged portion are graded, realize classification reaming, reduce reaming difficulty;
4. revolve and expand after pore-forming completes, start delivery pump to pump cement mortar in hole, when being full of cement mortar in the cylinder revolving expansion, start oil pump and stretch out reaming oil cylinder piston gradually, under push away reaming connecting rod upper flange, lower wing plate drawn in, continue pump cement mortar, rotation limit, auger stem limit promotes, keep auger stem rotary speed and hoisting velocity, ensure in lifting process that the grout outlet bottom reaming bit is embedded in below cement sand pulp all the time, until cement mortar pressure is filled with to regulation absolute altitude;
5. completing auger stem turns round in lifting and hole after cement injection mortar, proposes auger stem, inserts anchor rod body and fix between two parties in boring, completes enlarging anchor rod construction.
Advantageous Effects of the present invention:
1. this device has the advantage that structure is simple, reliable operation, available package unit once complete perfusion mortar in reaming in boring, hole, hole, expand end device by long auger can directly to hole and namely reaming forms local wide in the enterprising perform hole of anchor hole hole wall, speed of application is fast, construction cost is low, overcome in existing construction technology when carrying out the reaming of reaming section and need secondary UR drilling tool, speed of application is slow, construction cost is high, and pore-forming, mud circulation is used to produce the problem of a large amount of useless slurry contaminated environment in reaming procedure, enlarging anchor rod construction work progress noiselessness provided by the present invention, friction, without mud, anchoring body intensity is high, quality is good, cost is low, work efficiency is high, the feature such as environmental protection more, anchor pole anti-pulling capacity improves greatly.
2. the present invention is arranged on the top of swivel joint due to reaming oil cylinder, and do not enter in boring in construction, hydraulic jack has departed from severe condition of work, long service life, is not easy to occur accident in construction.
3. on reaming bit body of the present invention, pipe is connected by internal spline, external splines matched in clearance with pipe under reaming bit body, the axiality of the two, bonding strength are high, can bear large moment of torsion, and axial relative movement frictional resistance both keeping is little, mobile flexibly.
4. the pin joint of difference group reaming wing plate upper limb of the present invention is not on the height of same level, and one group that the upper flange of the reaming wing is longer is positioned at below; Due to the lower wing plate upper limb than bottom after the upper flange bend open on top open completely after the little one-level of diameter, and pin joint height height a bit, upper carry drilling tool rotate reaming time leading reaming, then the reaming wing of bottom expands one-level aperture again on the basis of previous stage counter bore diameter, so just realize classification reaming, effectively reduce reaming difficulty.
Accompanying drawing explanation
Fig. 1 is the structural representation that long auger of the present invention expands end device.
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1;
Fig. 4 is the sectional drawing of reaming cylinder bracket of the present invention;
Fig. 5 is classification counter bore diameter schematic diagram of the present invention;
Fig. 6 is the schematic diagram that long auger of the present invention expands when device does not strut at the end;
Fig. 7 is the schematic diagram that long auger of the present invention expands when device struts completely at the end;
Fig. 8 is the using state figure that the present invention is arranged on a machine;
Fig. 9 is the construction process figure of long auger enlarging anchor rod construction embodiment one of the present invention;
Figure 10 is the construction process figure of long auger enlarging anchor rod construction embodiment two of the present invention.
In figure: 1, reaming cylinder bracket; 2, reaming oil cylinder; 3, cylinder piston rod; 4, movement connector is divided; 5, reaming connecting rod; 6, stock inlet; 7, swivel joint; 8, motor; 9, headstock; 10, auger stem; 11, helical blade; 12, reaming bit body is managed; 13, one-level reaming wing plate upper limb; 14, one-level reaming wing plate bottom wing; 15, manage under reaming bit body; 16, leading drill bit; 17, grout outlet; 18, secondary reaming wing plate upper limb; 19, secondary reaming wing plate bottom wing; 20, engaging lug; 21, reaming cylinder bracket base; 22, bearing; 23, mortar mixer; 24, delivery pump; 25, grouting pipeline; 26, anchor rod body; 27, cement mortar.
Detailed description of the invention
Embodiment one: below in conjunction with Fig. 1 to Fig. 7, Fig. 9, illustrate present embodiment, a kind of long auger Counterboring apparatus, comprise the auger stem 10 being provided with helical blade 11, leading drill bit 16, the top of described auger stem 10 is connected with the headstock 9 of stake machine by swivel joint 7, swivel joint 7 is provided with stock inlet 6, both sides, headstock 9 top are provided with motor 8, reaming cylinder bracket 1 is provided with in the middle of headstock 9 top, reaming oil cylinder 2, engaging lug 20 is provided with in the middle of the top of described cylinder bracket 1, reaming oil cylinder 2 is hinged by engaging lug 20 and reaming cylinder bracket 1, piston rod 3 lower end of reaming oil cylinder is connected by a point movement connector 4 with reaming connecting rod 5 top, described reaming connecting rod 5 bottom is arranged in the axial central through hole of auger stem 10, revolution Counterboring apparatus is provided with between described leading drill bit 16 and auger stem 10, the lower end of reaming connecting rod 5 is connected with revolution Counterboring apparatus, revolution Counterboring apparatus bottom is connected with leading drill bit 16.
Described revolution Counterboring apparatus comprises pipe 12 on reaming bit body, pipe 15 under reaming bit body, respectively with pipe 12 on reaming bit body, the at least two group reaming wings that under reaming bit body, pipe 15 connects, the reaming wing is uniform around auger stem 10 axis, on described reaming bit body, pipe 12 upper end is connected with auger stem 10, under reaming bit body, pipe 15 lower end is connected with leading drill bit 16, the described reaming wing is provided with many groups, the present embodiment is 2 groups, 2 groups of reaming wings are uniform around auger stem axis, the described reaming wing comprises one-level reaming wing plate upper limb 13, secondary reaming wing plate upper limb 18, lower wing plate 14, 19, described one-level reaming wing plate upper limb 13, hinged outside pipe 12 on the upper end of secondary reaming wing plate upper limb 18 and reaming bit body, the length of each group of upper flange is different, the pin joint of each group of upper flange is not on sustained height, wherein the pin joint of the upper flange that length is longer is positioned at below, hinged outside pipe 15 under the lower end of one-level reaming wing plate bottom wing 14, secondary reaming wing plate bottom wing 19 and reaming bit body, pin joint in same level, the upper end thereof of the lower end of one-level reaming wing plate upper limb 13, secondary reaming wing plate upper limb 18 and one-level reaming wing plate bottom wing 14, secondary reaming wing plate bottom wing 19.Under described reaming bit body on the external cylindrical surface of pipe 15 and reaming bit body pipe 12 inner hole and move axially along endoporus, on described reaming bit body, pipe 12 is provided with internal spline, under reaming bit body, pipe 15 is provided with external splines, on reaming bit body, pipe 12 is connected by internal spline, external splines matched in clearance with pipe 15 under reaming bit body, and under reaming bit body, the bottom of pipe 15 is provided with grout outlet 17.
The reaming wing is driven by the reaming oil cylinder 2 of oil pump drive installation on stake machine swivel joint 7 top and struts or draw in.During work, first reaming cylinder piston rod 3 is in the state of stretching out, promote reaming connecting rod 5 and one-level reaming wing plate upper limb 13, secondary reaming wing plate upper limb 18, one-level reaming wing plate bottom wing 14, secondary reaming wing plate bottom wing 19 are all in rounding state, with the boring of long spire drilling tool to prescribed depth, forming the diameter shown in Fig. 3 is the boring of d2, and foot of hole is the diameter that leading drill bit is formed is the boring of d1.
After diameter d 2 has been holed, stake machine continues original place and turns clockwise, start oil pump simultaneously and regain reaming cylinder piston rod 3 gradually, under pull-up reaming connecting rod 5 makes reaming bit body, pipe 15 moves up in pipe 12 on reaming bit body, reaming wing plate is driven to strut gradually to assigned position, then brill is carried on revolution limit in limit, and the reaming wing plate of different group expands the boring that the diameter shown in Fig. 3 is d3, d4 respectively in hole, final formation and the longest reaming wing plate expansion equal diameter cylinder.The little one-level of diameter after upper flange due to the secondary reaming of the one-level reaming upper flange that upper length the is little bottom larger than length opens completely, but setting height(from bottom) is slightly higher, upper carry drilling tool rotate reaming time leading reaming, then the secondary reaming wing expands aperture again on the basis of previous stage counter bore diameter, so just realize classification reaming, effectively reduce reaming difficulty.
Expand after pore-forming completes revolving, start delivery pump to pump cement mortar in hole, when being full of cement mortar in the cylinder revolving expansion, start oil pump and stretch out reaming cylinder piston rod 3 gradually, under push away reaming connecting rod 5 reaming wing plate drawn in, continue pump cement mortar, long spire drilling tool keeps being rotated counterclockwise speed and hoisting velocity, need in lifting process to ensure that the grout outlet 17 bottom reaming bit is embedded in below cement sand pulp all the time, until cement mortar pressure is filled with to regulation absolute altitude.
Promote and in hole after cement injection mortar 27, propose long spire drilling tool completing the revolution of long spire drilling tool, in boring, inserting anchor rod body 26 and placed in the middle fixing, completing enlarging anchor rod and construct.
A kind of long auger enlarging anchor rod construction, comprises the following steps:
1. first hole with the auger stem 10 of the leading drill bit 16 of band and revolution Counterboring apparatus, reaming oil cylinder piston is made to be in the state of stretching out, reaming wing plate is all in rounding state, boring is to prescribed depth, forming the diameter shown in Fig. 3 is the boring of d2, and foot of hole is the diameter that leading drill bit is formed is the boring of d1.
2. after diameter d 2 has been holed, rig continues original place and turns clockwise, start oil pump simultaneously and regain reaming oil cylinder piston gradually, under pull-up reaming connecting rod makes reaming bit body, pipe moves up in pipe on reaming bit body, drive one-level reaming wing plate upper limb 13, secondary reaming wing plate upper limb 18, one-level reaming wing plate bottom wing 14, secondary reaming wing plate bottom wing 19 struts gradually to assigned position, while auger stem 10 rotates, by one-level reaming wing plate upper limb 13, secondary reaming wing plate upper limb 18, one-level reaming wing plate bottom wing 14, secondary reaming wing plate bottom wing 19 is flared to counter bore diameter gradually,
3. then on revolve and carry brill, auger stem 10 gradually on carried Counterboring apparatus and stirred and expansion to hole wall at the bottom of the expansion of foot of hole, the reaming wing plate of different group expands the boring that the diameter shown in Fig. 3 is d3, d4 respectively in hole, final formation and the longest reaming wing plate expansion equal diameter cylinder, realize classification reaming, effectively reduce reaming difficulty;
4. revolve and expand after pore-forming completes, start delivery pump to pump cement mortar in hole, when being full of cement mortar in the cylinder revolving expansion, start oil pump and stretch out reaming oil cylinder piston gradually, under push away reaming connecting rod and make one-level reaming wing plate upper limb 13, secondary reaming wing plate upper limb 18, one-level reaming wing plate bottom wing 14, secondary reaming wing plate bottom wing 19 draws in, continue pump cement mortar, rotation limit, auger stem 10 limit promotes, keep being rotated counterclockwise speed and hoisting velocity, ensure in lifting process that the grout outlet bottom reaming bit is embedded in below cement sand pulp all the time, until cement mortar pressure is filled with to regulation absolute altitude,
5. completing long spire drilling tool turns round in lifting and hole after cement injection mortar, proposes auger stem 10, inserts anchor rod body and fix between two parties in boring, completes enlarging anchor rod construction.
Embodiment two: below in conjunction with Fig. 8, Figure 10, illustrate present embodiment, first reaming cylinder piston rod 3 is in the state of stretching out, promote pipe 15 under reaming connecting rod 5 and reaming bit body, make one-level reaming wing plate upper limb 13, secondary reaming wing plate upper limb 18, one-level reaming wing plate bottom wing 14, secondary reaming wing plate bottom wing 19 are all in rounding state, with the boring of long spire drilling tool to prescribed depth, forming the diameter shown in Fig. 3 is the boring of d2, and foot of hole is the diameter that leading drill bit is formed is the boring of d1.
After diameter d 2 has been holed, stake machine continues original place and turns clockwise, start oil pump simultaneously and regain reaming cylinder piston rod 3 gradually, under pull-up reaming connecting rod 5 makes reaming bit body, pipe 15 moves up in pipe 12 on reaming bit body, reaming wing plate is driven to strut gradually to assigned position, then brill is carried on revolution limit in limit, the reaming wing plate of different group expands the boring that the diameter shown in Fig. 3 is d3, d4 respectively in hole, final formation and the longest reaming wing plate expansion equal diameter cylinder, realize classification reaming, effectively reduce reaming difficulty.
After spiral drill is mentioned design expansion body segment mark high position, repeat to turn clockwise at the bottom of sinking reaming to hole, start delivery pump to pump cement mortar in hole, long spire drilling tool keeps dextrorotation rotary speed and hoisting velocity, need in lifting process to ensure that the grout outlet 17 bottom reaming bit is embedded in below cement sand pulp all the time, in time carrying to reaming section end face on reaming wing plate is fast, start oil pump and stretch out reaming cylinder piston rod 3 gradually, under push away reaming connecting rod 5 reaming wing plate drawn in, continue pump cement mortar, long spire drilling tool continues to promote, need in lifting process to ensure that the grout outlet 17 bottom reaming bit is embedded in below cement sand pulp all the time, until cement mortar pressure is filled with to regulation absolute altitude.
Promote and in hole after cement injection mortar 27, propose long spire drilling tool completing the revolution of long spire drilling tool, in boring, inserting anchor rod body 26 and placed in the middle fixing, completing enlarging anchor rod and construct.
By reference to the accompanying drawings the detailed description of the invention of invention is described although above-mentioned; but not limiting the scope of the invention; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (4)
1. a long auger expands end device, it is characterized in that, comprise the auger stem being provided with helical blade, leading drill bit, the top of described auger stem is connected by the headstock of swivel joint with stake machine, swivel joint is provided with stock inlet, both sides, headstock top are provided with motor, reaming cylinder bracket is provided with in the middle of headstock top, reaming oil cylinder, engaging lug is provided with in the middle of the top of described cylinder bracket, reaming oil cylinder by engaging lug and reaming cylinder bracket hinged, the piston-rod lower end of reaming oil cylinder is connected by a point movement connector with reaming connecting rod top, described reaming connecting rod bottom is arranged in the axial central through hole of auger stem, revolution Counterboring apparatus is provided with between described leading drill bit and auger stem, the lower end of reaming connecting rod is connected with revolution Counterboring apparatus, revolution Counterboring apparatus bottom is connected with leading drill bit.
2. long auger as claimed in claim 1 expands end device, it is characterized in that, described revolution Counterboring apparatus comprises on reaming bit body manages, manage under reaming bit body, and manage respectively with on reaming bit body, the reaming wing that under reaming bit body, pipe connects, on described reaming bit body, pipe upper end is connected with auger stem, under reaming bit body, pipe lower end is connected with leading drill bit, the described reaming wing is provided with many groups, many groups reaming wing is uniform around auger stem axis, the described reaming wing comprises upper flange, lower wing plate, hinged outside pipe on the upper end of described upper flange and reaming bit body, the length of each group of upper flange is different, the pin joint of each group of upper flange is not on sustained height, wherein the pin joint of the upper flange that length is longer is positioned at below, hinged outside pipe under the lower end of lower wing plate and reaming bit body, pin joint is in same level, the lower end of upper flange and the upper end thereof of lower wing plate, under described reaming bit body on the external cylindrical surface of pipe and reaming bit body pipe inner hole and move axially along endoporus, under reaming bit body, the bottom of pipe is provided with grout outlet.
3. long auger as claimed in claim 1 expands end device, it is characterized in that, on described reaming bit body, pipe is provided with internal spline, and under reaming bit body, pipe is provided with external splines, and on reaming bit body, pipe is connected by internal spline, external splines matched in clearance with pipe under reaming bit body.
4. a long auger enlarging anchor rod construction, comprises the following steps:
1) first hole with the auger stem of the leading drill bit of band and revolution Counterboring apparatus, make reaming oil cylinder piston be in the state of stretching out, the reaming wing plate of revolution Counterboring apparatus is all in rounding state, holes to prescribed depth;
2) after having holed, rig continues original place and rotates, start oil pump simultaneously and regain reaming oil cylinder piston gradually, under pull-up reaming connecting rod makes reaming bit body, pipe moves up in pipe on reaming bit body, upper flange, the lower wing plate of the drive reaming wing strut gradually to assigned position, while auger stem rotates, upper flange, lower wing plate are flared to counter bore diameter gradually;
3) then on revolve and carry brill, auger stem gradually on carried Counterboring apparatus and stirred and expansion to hole wall at the bottom of the expansion of foot of hole, the reaming wing plate of different group expands the boring of different-diameter size respectively in hole, the diameter cylinders that final formation and the longest reaming wing plate enlarged portion are graded, realize classification reaming, effectively reduce reaming difficulty;
4) revolve and expand after pore-forming completes, start delivery pump to pump cement mortar in hole, when being full of cement mortar in the cylinder revolving expansion, start oil pump and stretch out reaming oil cylinder piston gradually, under push away reaming connecting rod upper flange, lower wing plate drawn in, continue pump cement mortar, rotation limit, auger stem limit promotes, keep auger stem rotary speed and hoisting velocity, ensure in lifting process that the grout outlet bottom reaming bit is embedded in below cement sand pulp all the time, until cement mortar pressure is filled with to regulation absolute altitude;
5) completing auger stem turns round in lifting and hole after cement injection mortar, proposes auger stem, inserts anchor rod body and fix between two parties in boring, completes enlarging anchor rod construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410691456.7A CN104453717B (en) | 2014-11-26 | 2014-11-26 | Long auger drilling and bottom expanding device and expanded anchor rod construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410691456.7A CN104453717B (en) | 2014-11-26 | 2014-11-26 | Long auger drilling and bottom expanding device and expanded anchor rod construction method |
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| Publication Number | Publication Date |
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| CN104453717A true CN104453717A (en) | 2015-03-25 |
| CN104453717B CN104453717B (en) | 2017-01-11 |
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| CN104832094A (en) * | 2015-05-08 | 2015-08-12 | 黑龙江中古建筑节能科技股份有限公司 | Long auger drilling and base-expanding complete device and reaming method |
| CN104947657A (en) * | 2015-05-18 | 2015-09-30 | 宋姝娴 | Multi-head stirring and pile arranging machine |
| CN105019453A (en) * | 2015-07-31 | 2015-11-04 | 新乡市嘉汇科技有限公司 | Anchor cable with framework expanding body |
| CN105089506A (en) * | 2015-09-18 | 2015-11-25 | 洛阳中岩工程材料有限公司 | Double-layer cross-shaped self-drilling anchor bolt drill bit |
| WO2016173255A1 (en) * | 2015-04-29 | 2016-11-03 | 王春龙 | Anchor rod multi-section reaming machine tool and application thereof |
| CN106401502A (en) * | 2016-08-31 | 2017-02-15 | 中国冶集团有限公司 | Rotating hole-forming device with hydraulic expanding head and construction method |
| CN107630703A (en) * | 2017-10-23 | 2018-01-26 | 中铁八局集团第二工程有限公司 | Band blade telescopic tube curtain jacking drill bit |
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| CN110904984A (en) * | 2019-11-27 | 2020-03-24 | 河南理工大学 | Sand gravel material filling device in reaming space and filling method using device |
| CN113073641A (en) * | 2021-04-25 | 2021-07-06 | 浙江工业职业技术学院 | Multi-section expanding and punching equipment |
| CN113073644A (en) * | 2021-03-22 | 2021-07-06 | 西南石油大学 | Automatic drilling type seabed piling device and method |
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| CN104832094A (en) * | 2015-05-08 | 2015-08-12 | 黑龙江中古建筑节能科技股份有限公司 | Long auger drilling and base-expanding complete device and reaming method |
| CN104947657A (en) * | 2015-05-18 | 2015-09-30 | 宋姝娴 | Multi-head stirring and pile arranging machine |
| CN105019453A (en) * | 2015-07-31 | 2015-11-04 | 新乡市嘉汇科技有限公司 | Anchor cable with framework expanding body |
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| CN105089506A (en) * | 2015-09-18 | 2015-11-25 | 洛阳中岩工程材料有限公司 | Double-layer cross-shaped self-drilling anchor bolt drill bit |
| CN106401502A (en) * | 2016-08-31 | 2017-02-15 | 中国冶集团有限公司 | Rotating hole-forming device with hydraulic expanding head and construction method |
| CN108049804B (en) * | 2017-10-23 | 2019-10-11 | 河北省地矿局国土资源勘查中心 | Non-excavation in-situ replacement spiral drilling method for unconsolidated formation |
| CN107630703A (en) * | 2017-10-23 | 2018-01-26 | 中铁八局集团第二工程有限公司 | Band blade telescopic tube curtain jacking drill bit |
| CN108049804A (en) * | 2017-10-23 | 2018-05-18 | 河北省地矿局国土资源勘查中心 | Non-excavation in-situ replacement spiral drilling method for unconsolidated formation |
| CN109267572A (en) * | 2018-11-13 | 2019-01-25 | 东北电力大学 | A kind of ground anchored structure that stability is good |
| CN110470507A (en) * | 2019-09-28 | 2019-11-19 | 缙云多图智能科技有限公司 | A kind of soil collection automatic counterboring device |
| CN110904984A (en) * | 2019-11-27 | 2020-03-24 | 河南理工大学 | Sand gravel material filling device in reaming space and filling method using device |
| CN110904984B (en) * | 2019-11-27 | 2024-02-06 | 河南理工大学 | Gravel filling device in reaming space and filling method using device |
| WO2021154982A1 (en) * | 2020-01-28 | 2021-08-05 | Ojjo, Inc. | Drill bits for drilling while driving foundation components |
| CN113073644A (en) * | 2021-03-22 | 2021-07-06 | 西南石油大学 | Automatic drilling type seabed piling device and method |
| CN113073644B (en) * | 2021-03-22 | 2022-03-29 | 西南石油大学 | Automatic drilling type seabed piling device and method |
| CN113073641A (en) * | 2021-04-25 | 2021-07-06 | 浙江工业职业技术学院 | Multi-section expanding and punching equipment |
| CN113073641B (en) * | 2021-04-25 | 2022-08-26 | 浙江工业职业技术学院 | Multi-section expanding and punching equipment |
| CN114151012A (en) * | 2021-12-07 | 2022-03-08 | 中建东设岩土工程有限公司 | Jet grouting pile expanding and jet grouting assisting construction and pile diameter detection method |
| CN114319342A (en) * | 2022-01-06 | 2022-04-12 | 中冶成都勘察研究总院有限公司 | Novel construction method of anti-floating anchor rod |
| CN114319342B (en) * | 2022-01-06 | 2023-08-11 | 中冶成都勘察研究总院有限公司 | Construction method of anti-floating anchor rod |
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