CN110206483A - Soil suction formula full-sleeve hole-forming device and its application method - Google Patents
Soil suction formula full-sleeve hole-forming device and its application method Download PDFInfo
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- CN110206483A CN110206483A CN201910585615.8A CN201910585615A CN110206483A CN 110206483 A CN110206483 A CN 110206483A CN 201910585615 A CN201910585615 A CN 201910585615A CN 110206483 A CN110206483 A CN 110206483A
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- sleeve pipe
- described sleeve
- hole
- forming device
- casing
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- 239000002689 soil Substances 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 34
- 239000011435 rock Substances 0.000 claims abstract description 65
- 239000004575 stone Substances 0.000 claims abstract description 44
- 238000010276 construction Methods 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000000314 lubricant Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 239000003643 water by type Substances 0.000 claims description 5
- 206010044565 Tremor Diseases 0.000 claims description 4
- 239000000284 extract Substances 0.000 claims description 4
- 238000007569 slipcasting Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000010412 perfusion Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 2
- 230000007423 decrease Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000012407 engineering method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000003818 cinder Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
- E02D5/385—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with removal of the outer mould-pipes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/003—Drilling with mechanical conveying means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/24—Drilling using vibrating or oscillating means, e.g. out-of-balance masses
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Structural Engineering (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a kind of soil suction formula full-sleeve hole-forming device and its application method, soil suction formula full-sleeve hole-forming devices, comprising: casing moves, to form accommodating hole with being driven towards native rock layers；Attracting mechanism generates negative pressure in described sleeve pipe inner cavity, and the native stone silt in described sleeve pipe is discharged, to reduce the native stone silt to the frictional resistance of described sleeve pipe inner wall.To avoid the problem that its construction cost of full-sleeve hole-forming device height in the prior art and long construction period.
Description
Technical field
The present invention relates to full-sleeve hole creating technology fields, and in particular to a kind of soil suction formula full-sleeve hole-forming device and its use
Method.
Background technique
At present in pile foundation construction use all casing drill engineering method pore-forming, all casing drill engineering method pore-forming mainly in
The construction of the scalls such as cohesive soil and sandy soil.In the prior art, as shown in figure 5, all casing drill engineering method needs to pass through a full set
The borehole in a manner of rotary drilling of pipe hole-forming device drive sleeve 101, then grab bucket 102, rotary digging mode or use are rushed to scarfing cinder
Threaded bore etc. takes cubic metre of earth formula to take the soil in full-sleeve away.The engineering method utilizes rotational hydraulic device, is rotated into steel sleeve and buries
Layer, so that the frictional resistance between steel sleeve and soil layer is overcome, to realize steel bushing tube edge rotation side indentation.But aforesaid operations side
Method needs to take indigenous equipment to take soil using punching grab bucket etc. during borehole, and punching grab bucket, which needs to enter and leave casing repeatedly, takes soil, takes native mistake
Journey poor continuity causes casing drilling and stratum driving speed slow, the problem that construction cost is high and the pore-forming time is long.
Summary of the invention
Therefore, the present invention is intended to provide a kind of soil suction formula full-sleeve hole-forming device and its application method, to solve existing skill
The problem of full-sleeve hole-forming device construction cost in art is high and long construction period.For this purpose, to provide a kind of soil suction formula complete by the present invention
Casing pipe hole forming device, comprising:
Casing moves, to form accommodating hole with being driven towards native rock layers；
Attracting mechanism generates negative pressure in described sleeve pipe inner cavity, the native stone silt in described sleeve pipe is discharged, to reduce
Native stone silt is stated to the frictional resistance of described sleeve pipe inner wall.
The attracting mechanism includes extending in described sleeve pipe inner cavity, for the suction tube of the native stone silt to be discharged, at
During hole, its depth location of material sucking port on the suction tube enters the depth position of the native rock layers not less than described sleeve pipe
It sets.
In pore forming process, the material sucking port extends described sleeve pipe lower end.
The material sucking port is located at the lower end surface of the suction tube and/or the material sucking port is located at the suction tube lower end
On side wall.
The attracting mechanism includes the driving portion for driving the suction tube raising and lowering, and makes the suction tube
The interior soil suction device for forming negative pressure absorbing soil stone silt.
The suction tube is connected with attracting mechanism, and lower end surface is dentalation.
Soil suction formula full-sleeve hole-forming device, including casing driving mechanism, described sleeve pipe driving mechanism drive described sleeve pipe court
High-frequency vibration above and below to the native rock layers direction, so that described sleeve pipe sinks to the native rock layers and forms accommodating hole.
Described sleeve pipe driving mechanism includes vibration hammer, and the vibration frequency of the vibration hammer is 25Hz-60Hz.
Soil suction formula full-sleeve hole-forming device, further includes pipe extractor, and the pipe extractor is connected with described sleeve pipe, is beaten for assisting
Pile-drawing machine tube drawing.
Soil suction formula full-sleeve hole-forming device, further includes the giant extended in described sleeve pipe, the giant
Lower end is located at described sleeve pipe inner cavity, and the lower end surface of the giant is higher than the lower end surface of described sleeve pipe.
The application method of soil suction formula full-sleeve hole-forming device, comprising the following steps:
Casing is mounted on pile-driving and-pulling machine by S1；
S2 carries out vacuum suction in advance to the native rock layers by the driving attracting mechanism to be formed in the native rock layers
Pit, while driving described sleeve pipe to sink to entering the native rock layers and forming accommodating hole, the attracting mechanism is by described sleeve pipe inner cavity
In native stone silt discharge；
Steel reinforcement cage is sunk down into the accommodating hole bottom hole by S3；
Concrete perfusion in S4, Xiang Suoshu accommodating hole, while promoting described sleeve pipe to cast-in-place concrete pile and completing, the set
Pipe is pulled out.
The application method of soil suction formula full-sleeve hole-forming device, step S2, the driving described sleeve pipe sink to entering the soil
Rock layers form accommodating hole further include: continue that lubricant is added to described sleeve pipe surface in described sleeve pipe sinking watching.
The application method step S4 of soil suction formula full-sleeve hole-forming device, the promotion described sleeve pipe includes: to pass through pipe extractor
Drive described sleeve pipe to assist pile-driving and-pulling machine tube drawing.
A kind of application method of soil suction formula full-sleeve hole-forming device is applied to waters construction environment comprising following steps:
Casing is mounted on pile-driving and-pulling machine by S1；
S2 sprays high pressure water towards the native rock layers by giant to cut native rock layers, and passes through the attractor
Native stone silt in described sleeve pipe inner cavity is discharged structure, while driving described sleeve pipe to sink to entering the native rock layers and forming accommodating
Hole；
S3 removes attracting mechanism；
Prefabricated pile is implanted into the accommodating hole by S4；
S5 extracts described sleeve pipe and the slip casting into the accommodating hole.
The attracting mechanism is slush pump.
Technical solution of the present invention has the advantages that
1. soil suction formula full-sleeve hole-forming device provided by the invention, comprising: casing moves with being driven towards native rock layers,
To form accommodating hole；Attracting mechanism generates negative pressure in described sleeve pipe inner cavity, and the native stone silt in described sleeve pipe is discharged, with
The native stone silt is reduced to the frictional resistance of described sleeve pipe inner wall.In casing sinking watching, while with attracting mechanism described
Negative pressure is generated in cannula cavity, and the native stone silt in described sleeve pipe is discharged, it through the above way can effectively will be in casing
Soil sandstone etc. ground is sucked out in time, make internal surface of sleeve pipe without soil, can thus eliminate the frictional force of internal surface of sleeve pipe soil, make
There is only the stratum frictional force of sleeve outer wall in casing sinking watching is made under casing by reducing the frictional resistance of internal surface of sleeve pipe
Total drag reduction during heavy, accelerates casing subsidence velocity, reduces pore-forming cost, improves pore-forming efficiency.
2. soil suction formula full-sleeve hole-forming device provided by the invention, attracting mechanism includes extending in described sleeve pipe inner cavity,
For being discharged the suction tube of the native stone silt, in pore forming process, material sucking port its depth location on the suction tube is not less than
Described sleeve pipe enters the depth location of the native rock layers.Above-mentioned suction tube sinks down into lower end portion, to make suction tube can be with
Prior to the native stone silt that casing draws native rock layers surface, to form a pit in native rock layers, covered during casing decline
Pipe impulses to form a slight slope collapsed near above-mentioned pit, so that making to form the above-mentioned native stone silt for collapsing slight slope can
Effectively to be attracted to be discharged by suction tube, the soil rock for avoiding casing decline from generating bulk in the process is difficult to be arranged by suction tube
Out the problem of, occurs.
3. soil suction formula full-sleeve hole-forming device provided by the invention, in pore forming process, the material sucking port extends the set
Pipe lower end.Above-mentioned material sucking port, which extends to outside lower end, can make the material sucking port of suction tube closer to native rock layers to siphon away soil
More ground is sucked out in native stone silt, the native stone silt of guarantee in time on rock layers surface, is kept native rock layers soft and is formed one relatively deeply
Pit, make by smaller resistance in casing sinking watching, casing can quickly smash pit edge, accelerate settling velocity under casing
Degree reduces pore-forming cost, improves pore-forming efficiency.
4. soil suction formula full-sleeve hole-forming device provided by the invention, the material sucking port is located at the lower end surface of the suction tube,
The material sucking port of the above-mentioned lower end surface positioned at suction tube can form pit in native rock layers effective and rapidly prior to casing, to subtract
The resistance that small casing sinking is subject to；The material sucking port is located on the side wall of the suction tube lower end, above-mentioned to be located at suction tube side wall
On material sucking port can be effectively reduced in casing sinking watching effectively by the native stone silt drain sleeve in cannula cavity
The frictional resistance of internal surface of sleeve pipe, makes drag reduction total in casing sinking watching, accelerates casing subsidence velocity, reduce pore-forming at
This, improves pore-forming efficiency.
5. soil suction formula full-sleeve hole-forming device provided by the invention, the attracting mechanism include for driving the suction tube
The driving portion of raising and lowering, above-mentioned driving portion are the telescopic hydraulic pushing mechanism for driving suction tube lifting, pass through said mechanism
The position of its material sucking port of suction tube can be effectively realized, so that user be allow to adjust material sucking port according to different service conditions
Depth location improves the using flexible of soil suction formula full-sleeve hole-forming device.
6. soil suction formula full-sleeve hole-forming device provided by the invention, suction tube are connected with attracting mechanism, the lower end of suction tube
Face is dentalation.The suction tube of above-mentioned dentalation can help the broken native rock layers of suction tube to a certain extent, mention
The pore-forming efficiency of high device.
7. soil suction formula full-sleeve hole-forming device provided by the invention, including casing driving mechanism, described sleeve pipe driving mechanism
Drive described sleeve pipe towards native rock layers direction vertical tremor, so that described sleeve pipe sinks to the native rock layers and forms accommodating hole.
Casing is driven ground high-frequency vertical tremor to carry out boring work, and attracting mechanism and casing synchronous matching, attracting mechanism
It can effectively cooperate casing that the native stone silt in native rock layers is discharged and then form a pit, and above-mentioned pit is in casing
Impulse act on down its marginal position can be chipping, the decline difficulty of casing can be effectively reduced by above-mentioned pit, reduce
Even be eliminated the frictional force of internal surface of sleeve pipe soil stone silt, make in casing sinking watching there is only sleeve outer wall and ground interfacial friction
Power makes drag reduction total in casing sinking watching, accelerates casing subsidence velocity, reduces pore-forming cost, improves pore-forming efficiency.
8. soil suction formula full-sleeve hole-forming device provided by the invention, further includes pipe extractor, the pipe extractor and described sleeve pipe
It is connected, for assisting pile-driving and-pulling machine tube drawing.Above-mentioned pipe extractor matches with sleeve outer, mentions in casing withdrawal process for casing
For power-assisted, especially when casing is from stationary state to propradation, since the resistance that casing is subject to is bigger, in matching for pipe extractor
Pile-driving and-pulling machine tube drawing can be effectively assisted under closing.
9. the application method of soil suction formula full-sleeve hole-forming device provided by the invention, wherein passes through the driving in step S2
Attracting mechanism carries out vacuum suction in advance to the native rock layers to form pit in the native rock layers, while driving under described sleeve pipe
Heavy to enter the native rock layers formation accommodating hole, the native stone silt in described sleeve pipe inner cavity is discharged the attracting mechanism.Above-mentioned step
Because attracting mechanism can carry out vacuum suction to native rock layers prior to casing in rapid, so as to form pit, set in native rock layers
It only needs to smash in the native stone of pit edge during pipe decline, efficiently reduces the decline resistance of casing.Moreover, under casing
The native stone silt being crashed to pieces during drop can form the small slight slope of fragmentation at cannula cavity edge, and above-mentioned loose small slight slope also can
It is soon attracted mechanism and ground is sucked out in time, contact immersed tube inner wall without native stone silt.Make in casing sinking watching only
There are the stratum frictional force of sleeve outer wall, accelerate casing subsidence velocity, reduce pore-forming cost, improve pore-forming efficiency.
10. the application method of soil suction formula full-sleeve hole-forming device provided by the invention, wherein under the driving described sleeve pipe
It is heavy to enter the native rock layers formation accommodating hole further include: to continue to be added to described sleeve pipe surface in described sleeve pipe sinking watching and moisten
Lubrication prescription.Above-mentioned lubricant is the chemical lubriation material such as water or lubricating oil.Above-mentioned lubricant is reduced between sleeve outer wall and soil layer
Frictional resistance, also, the high-frequency excitation of vibration hammer can also make liquable stratum around outside of sleeve liquefy, water
The liquefaction with stratum, which is added, can efficiently reduce the frictional resistance of outside of sleeve wall, accelerate casing subsidence velocity.
11. the application method of soil suction formula full-sleeve hole-forming device provided by the invention is applied to waters construction environment, packet
Including following steps, casing is mounted on pile-driving and-pulling machine by: S1；S2 sprays high pressure water towards the native rock layers by giant,
And the native stone silt in described sleeve pipe inner cavity is discharged by the attracting mechanism, while described sleeve pipe being driven to sink described in entrance
Native rock layers form accommodating hole；S3 removes attracting mechanism；Prefabricated pile is implanted into the accommodating hole by S4；S5 extracts described sleeve pipe
And the slip casting into the accommodating hole.Above-mentioned attracting mechanism is slush pump.Under the construction environment of waters, slush pump can effectively match
It closes giant and cuts native rock layers, accommodating hole is formed with environment under water.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is that suction tube provided by the invention stretches out soil suction formula full-sleeve hole-forming device its structure outside full-sleeve lower end
Schematic diagram；
Fig. 2 is that suction tube provided by the invention soil suction formula full-sleeve hole-forming device its structure concordant with full-sleeve lower end is shown
It is intended to；
Fig. 3 is its pore-forming schematic diagram of soil suction formula full-sleeve hole-forming device provided by the invention；
Fig. 4 is soil suction formula full-sleeve hole-forming device its structural schematic diagram provided by the invention with giant；
Fig. 5 is full-sleeve hole-forming device structural schematic diagram in the prior art.
Description of symbols:
1- casing；2- soil rock layers；3- accommodating hole；4- suction tube；5- material sucking port；6- pipe extractor；7- giant；101- set
Pipe；102- punching grab bucket.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
Embodiment 1
Soil suction formula full-sleeve hole-forming device provided in this embodiment, as shown in figures 1 and 3 comprising
Casing 1 sinks under the driving of pile-driving and-pulling machine towards the native vibration of rock layers 2, to form accommodating hole 3, the vibration of casing 1
Frequency is 28Hz；
Attracting mechanism generates negative pressure in 1 inner cavity of described sleeve pipe, and the native stone silt in described sleeve pipe 1 is discharged, to reduce
The soil stone silt, can be effectively by the mud in casing 1 by above-mentioned attracting mechanism to the frictional resistance of 1 inner wall of described sleeve pipe
Ground is sucked out in soil sand stone etc. in time, makes 1 inner wall of casing without soil or few soil, makes in 1 sinking watching of casing that there is only casings 1
The stratum frictional force of outer wall makes drag reduction total in 1 sinking watching of casing, adds by reducing the frictional resistance of 1 inner wall of casing
1 subsidence velocity of fast casing, reduces pore-forming cost, improves pore-forming efficiency；Attracting mechanism includes extending in 1 inner cavity of described sleeve pipe,
For suction tube 4, the driving portion for driving 4 raising and lowering of suction tube of the native stone silt to be discharged, and make institute
The soil suction device that negative pressure absorbing soil stone silt is formed in suction tube 4 is stated, above-mentioned soil suction device is vacuum compressor.The suction tube
Material sucking port 5 is provided on 4, and material sucking port 5 is located at the side of 4 lower end of lower end surface and the suction tube of the suction tube 4
On wall, the material sucking port 5 of the above-mentioned lower end surface positioned at suction tube 4 can form in native rock layers 2 recessed effective and rapidly prior to casing 1
Hole, so that reducing casing 1 is driven the resistance that ground high-frequency vertical tremor sinking is subject to, pit is under the effect that impulses of casing 1
Its marginal position can be chipping；The above-mentioned material sucking port 5 on 4 side wall of suction tube can be in 1 sinking watching of casing effectively
Native stone silt drain sleeve 1 in 1 inner cavity of casing is effectively reduced the frictional resistance of 1 inner wall of casing by ground, and casing 1 is made to sink
Total drag reduction in the process accelerates 1 subsidence velocity of casing, reduces pore-forming cost, improves pore-forming efficiency.Moreover, material sucking port 5 prolongs
Extending to can make the material sucking port 5 of suction tube 4 more to siphon away native 2 surface of rock layers closer to native rock layers 2 outside 1 lower end of casing
Native stone silt forms one in native rock layers 2 so that suction tube 4 be allow to draw the native stone silt on native 2 surface of rock layers prior to casing 1
A pit, casing 1 can quickly smash pit edge, to form a slight slope collapsed near above-mentioned pit, to make
Form the above-mentioned native stone silt for collapsing slight slope effectively can be attracted to be discharged by suction tube 4, during avoiding casing 1 from declining
The soil rock for leading to the problem of bulk is difficult to that generation is discharged by suction tube 4, accelerates 1 subsidence velocity of casing, reduces pore-forming cost, mentions
High pore-forming efficiency；In the present embodiment, the lower end surface of suction tube 4 and the lower end surface of casing 1 are dentalation, dentalation
Suction tube 4 and casing 1 broken native rock layers 2 when the two can be helped to sink to a certain extent, improve the pore-forming effect of device
Rate.Above-mentioned driving portion is the telescopic hydraulic pushing mechanism for driving suction tube 4 to go up and down, and can effectively realize suction by said mechanism
It is improved so that user be allow to adjust the depth location of material sucking port 5 according to different service conditions the position of its material sucking port 5 of expects pipe 4
The using flexible of soil suction formula full-sleeve hole-forming device；
Pipe extractor 6, the pipe extractor 6 are connected with described sleeve pipe 1, for assisting pile-driving and-pulling machine tube drawing, above-mentioned pipe extractor 6 with
1 outer diameter of casing matches, and provides power-assisted in 1 withdrawal process of casing for casing 1, especially in casing 1 from stationary state to upper
When the state of liter, since the resistance that casing 1 is subject to is bigger, pile-driving and-pulling machine tube drawing can be effectively assisted under the cooperation of pipe extractor 6.
The application method of soil suction formula full-sleeve hole-forming device, comprising the following steps:
Casing 1 is mounted on pile-driving and-pulling machine by S1；
S2 carries out vacuum suction in 2 shape of the native rock layers to the native rock layers 2 by the driving attracting mechanism in advance
It at pit, while driving described sleeve pipe 1 to sink to entering the native rock layers 2 and forming accommodating hole 3, held in 1 sinking watching of described sleeve pipe
Continue to 1 surface spray water of described sleeve pipe, meanwhile, the native stone silt in 1 inner cavity of described sleeve pipe is discharged the attracting mechanism；
S3 removes attracting mechanism；
Steel reinforcement cage is sunk down into 3 bottom hole of accommodating hole by S4；Concrete perfusion in S5, Xiang Suoshu accommodating hole 3 leads to simultaneously
It crosses pipe extractor 6 and drives described sleeve pipe 1 to assist pile-driving and-pulling machine tube drawing, promote described sleeve pipe 1 to cast-in-place concrete pile and complete, it is described
Casing 1 is pulled out.
In above-mentioned steps S2, water can reduce the frictional resistance between 1 outer wall of casing and soil layer, also, the height of vibration hammer
Frequency exciting can also make the liquable stratum of 1 outer periphery of casing liquefy, and the addition of water and the liquefaction on stratum can have
Effect ground reduces the frictional resistance of 1 lateral wall of casing, accelerates 1 subsidence velocity of casing.Because attracting mechanism can be in above-mentioned steps S2
Prior to 1 pair of casing native rock layers 2 carry out vacuum suction, so as to form pit in native rock layers 2, only need during the decline of casing 1
The native stone of pit edge is smashed, the decline resistance of casing 1 is efficiently reduced.Moreover, being crashed to pieces during the decline of casing 1
Native stone silt can form the small slight slope of fragmentation in 1 luminal border of casing, above-mentioned loose small slight slope also can be soon attracted
Ground is sucked out in mechanism in time, contacts immersed tube inner wall without native stone silt.Make in 1 sinking watching of casing that there is only outside casing 1
The stratum frictional force of wall accelerates 1 subsidence velocity of casing, reduces pore-forming cost, improves pore-forming efficiency.
Certainly, the lubricant medium of 1 surface of the present patent application opposite direction described sleeve pipe sprinkling is not particularly limited, in other implementations
In example, the chemical lubriation material such as lubricating oil can also be sprayed to 1 surface of described sleeve pipe.
Certainly, the present patent application is not particularly limited its setting position the material sucking port 5 being arranged on suction tube 4, other
In embodiment, material sucking port 5 is only located at the lower end surface of the suction tube 4, and the material sucking port 5 of the above-mentioned lower end surface positioned at suction tube 4 can
To form pit in native rock layers 2 effective and rapidly prior to casing 1, to reduce the resistance that the sinking of casing 1 is subject to.
Embodiment 2
The present embodiment the difference from embodiment 1 is that, as shown in Figures 2 and 3, in pore forming process, on the suction tube 4
The lower end surface flush of its depth location of material sucking port 5 and casing 1, the material sucking port 5 be located at the suction tube 4 lower end surface and
On the side wall of 4 lower end of suction tube.Above-mentioned suction tube 4 sinks down into 1 lower end surface of casing, to allow suction tube 4 prior to set
Pipe 1 draws the native stone silt on native 2 surface of rock layers, to form a pit in native rock layers 2, declines process middle sleeve 1 in casing 1
It impulses to form a slight slope collapsed near above-mentioned pit, to allow the above-mentioned slight slope collapsed effectively by suction
Pipe 4 attracts to be discharged, and avoids the problem that the soil rock of generation bulk is difficult to that hair is discharged by suction tube 4 decline of casing 1 in the process
It is raw.
Embodiment 3
The present embodiment the difference from embodiment 1 is that, as shown in figure 4, soil suction formula full-sleeve hole-forming device is in water environment
Construction, the application method of soil suction formula full-sleeve hole-forming device comprising following steps: casing 1 is mounted on pile-driving and-pulling machine by S1
On；S2 sprays high pressure water towards the native rock layers 2 by giant 7, and will be in described sleeve pipe 1 by the attracting mechanism
Native stone silt discharge in chamber, while driving described sleeve pipe 1 to sink to entering the native rock layers 2 and forming accommodating hole 3；S3 will attract
Mechanism removes；Prefabricated pile is implanted into the accommodating hole 3 by S4；S5 extracts described sleeve pipe 1 and the slip casting into the accommodating hole 3.Institute
Stating attracting mechanism is slush pump.Above-mentioned attracting mechanism is slush pump.Under the construction environment of waters, slush pump can effectively cooperate
Giant 7 cuts native rock layers 2, forms accommodating hole 3 with environment under water.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (15)
1. a kind of soil suction formula full-sleeve hole-forming device, which is characterized in that including
Casing (1) moves, to form accommodating hole (3) with being driven towards native rock layers (2)；
Attracting mechanism generates negative pressure in described sleeve pipe (1) inner cavity, and the native stone silt in described sleeve pipe (1) is discharged, to reduce
Frictional resistance of the soil stone silt to described sleeve pipe (1) inner wall.
2. soil suction formula full-sleeve hole-forming device according to claim 1, which is characterized in that the attracting mechanism includes extending
Into described sleeve pipe (1) inner cavity, for being discharged the suction tube (4) of the native stone silt, in pore forming process, the suction tube (4)
On material sucking port (5) its depth location enter the depth locations of the native rock layers (2) not less than described sleeve pipe (1).
3. soil suction formula full-sleeve hole-forming device according to claim 2, which is characterized in that in pore forming process, the suction
Mouth (5) extends described sleeve pipe (1) lower end.
4. soil suction formula full-sleeve hole-forming device according to claim 2 or 3, which is characterized in that the material sucking port (5) is located at
The lower end surface of the suction tube (4) and/or the material sucking port (5) are located on the side wall of the suction tube (4) lower end.
5. soil suction formula full-sleeve hole-forming device according to any one of claim 2 to 4, which is characterized in that the attraction
Mechanism includes the driving portion for driving the suction tube (4) raising and lowering.
6. the soil suction formula full-sleeve hole-forming device according to any one of claim 2 to 5, which is characterized in that the suction
The lower end surface for managing (4) is dentalation.
7. soil suction formula full-sleeve hole-forming device according to any one of claim 1 to 6, which is characterized in that including casing
Driving mechanism, described sleeve pipe driving mechanism drives described sleeve pipe (1) towards native rock layers (2) direction vertical tremor, so that institute
It states casing (1) and sinks to native rock layers (2) formation accommodating hole (3).
8. soil suction formula full-sleeve hole-forming device according to claim 7, which is characterized in that described sleeve pipe driving mechanism includes
Vibration hammer, the vibration hammer are high-frequency vibratory hammer.
9. soil suction formula full-sleeve hole-forming device according to any one of claim 1 to 6, which is characterized in that further include pulling out
Pipe device (6), the pipe extractor (6) is connected with described sleeve pipe (1), for assisting pile-driving and-pulling machine tube drawing.
10. soil suction formula full-sleeve hole-forming device according to any one of claim 1 to 9, which is characterized in that further include prolonging
The giant (7) in described sleeve pipe (1) is extended to, the lower end of the giant (7) is located at described sleeve pipe (1) inner cavity.
11. a kind of application method of soil suction formula full-sleeve hole-forming device of any of claims 1-10, feature exist
In, comprising the following steps:
Casing (1) is mounted on pile-driving and-pulling machine by S1；
It is recessed to be formed in the native rock layers (2) to carry out vacuum suction to the native rock layers (2) by driving attracting mechanism in advance by S2
Hole, while driving described sleeve pipe (1) to sink to entering the native rock layers (2) and forming accommodating hole (3), the attracting mechanism is by the set
Manage the native stone silt discharge in (1) inner cavity；
S3 removes attracting mechanism；
Steel reinforcement cage is sunk down into the accommodating hole (3) bottom hole by S4；
S5, Xiang Suoshu accommodating hole (3) interior concrete perfusion, while promoting described sleeve pipe (1) to cast-in-place concrete pile and completing, it is described
Casing (1) is pulled out.
12. the application method of soil suction formula full-sleeve hole-forming device according to claim 11, which is characterized in that step S2,
The driving described sleeve pipe (1) sinks to entering the native rock layers (2) and forms accommodating hole (3) further include: sinks in described sleeve pipe (1)
Continue that lubricant is added to described sleeve pipe (1) surface in the process.
13. the application method of soil suction formula full-sleeve hole-forming device according to claim 11, which is characterized in that step S5,
The promotion described sleeve pipe (1) includes: by pipe extractor (6) driving described sleeve pipe (1) to assist pile-driving and-pulling machine tube drawing.
14. a kind of application method of soil suction formula full-sleeve hole-forming device of any of claims 1-10, feature exist
In applied to waters construction environment comprising following steps:
Casing (1) is mounted on pile-driving and-pulling machine by S1；
S2 sprays high pressure water towards the native rock layers (2) by giant (7), and by the attracting mechanism by the set
The native stone silt discharge in (1) inner cavity is managed, while driving described sleeve pipe (1) to sink to entering the native rock layers (2) and forming accommodating hole
(3)；
S3 removes attracting mechanism；
Prefabricated pile is implanted into the accommodating hole (3) by S4；
S5 extracts described sleeve pipe (1) and to the accommodating hole (3) interior slip casting.
15. the application method of soil suction formula full-sleeve hole-forming device according to claim 14, which is characterized in that the attraction
Mechanism is slush pump.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811500158X | 2018-12-10 | ||
| CN201811500158 | 2018-12-10 |
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| CN110206483A true CN110206483A (en) | 2019-09-06 |
| CN110206483B CN110206483B (en) | 2021-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910585615.8A Active CN110206483B (en) | 2018-12-10 | 2019-07-01 | Soil-absorbing type full-casing pore-forming device and using method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847824A (en) * | 2019-11-27 | 2020-02-28 | 吉林大学 | Sand stratum pressure-vaccum immersed tube becomes well construction equipment |
| CN111101865A (en) * | 2019-12-30 | 2020-05-05 | 深圳市盛业地下工程有限公司 | High efficiency drilling equipment |
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| GB2165283A (en) * | 1984-10-04 | 1986-04-09 | Petro Drive Inc | Apparatus and method for driving casing or conductor pipe |
| CN101153489A (en) * | 2006-09-21 | 2008-04-02 | 王国奋 | Bottom expanding and piling method by demolishing of pipe sank prefabricated steel concrete bottom expansion pile |
| CN102493468A (en) * | 2011-12-13 | 2012-06-13 | 中交第二公路工程局有限公司 | Design method for construction cofferdam of bridge deepwater soft soil foundation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110847824A (en) * | 2019-11-27 | 2020-02-28 | 吉林大学 | Sand stratum pressure-vaccum immersed tube becomes well construction equipment |
| CN110847824B (en) * | 2019-11-27 | 2024-06-11 | 吉林大学 | Sand ground stratum blowing-sucking immersed tube well-forming construction device |
| CN111101865A (en) * | 2019-12-30 | 2020-05-05 | 深圳市盛业地下工程有限公司 | High efficiency drilling equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110206483B (en) | 2021-03-02 |
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