CN107916668A - The method for dismantling pile crown - Google Patents
The method for dismantling pile crown Download PDFInfo
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- CN107916668A CN107916668A CN201711216451.9A CN201711216451A CN107916668A CN 107916668 A CN107916668 A CN 107916668A CN 201711216451 A CN201711216451 A CN 201711216451A CN 107916668 A CN107916668 A CN 107916668A
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- pile crown
- forcible entry
- hole
- expansion
- hydraulic pressure
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
- E02D9/005—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof removing the top of placed piles of sheet piles
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention belongs to brittle solid to dismantle technical field, specifically provides a kind of method for dismantling pile crown.Present invention seek to address that pile crown forcible entry efficiency is low, of high cost and heavy-polluted problem.The method of the forcible entry pile crown of the present invention, which is included on the axle center face to be dismantled of pile crown, forms several operation holes；Pillar hydraulic pressure in hole is provided and splits stone implement, pillar hydraulic pressure, which splits stone implement, in hole includes one group and several matched expansion gears in operation hole；One group of expansion gear is inserted into pillar hydraulic pressure in several corresponding operation hole Zhong Bingshi holes and splits stone implement action, so as to pile crown edge axle center face spalling to be dismantled.Therefore, the forcible entry efficiency of pile crown is improved by the method for the forcible entry pile crown of the present invention, while has saved forcible entry cost, reduced forcible entry pollution.
Description
Technical field
The invention belongs to brittle solid to dismantle technical field, specifically provides a kind of method for dismantling pile crown.
Background technology
Pile crown is made of concrete and internal steel reinforcement cage.At present, in the forcible entry construction of pile crown, generally use artificial process
Or broken pile machine construction method.Artificial process is first to be cut the cover concrete on the outside of pile crown reinforcing bar with pneumatic pick, by Exposed reinforcement,
Drill rod is wedged in same level then along the concrete circumference inside steel reinforcement cage, using concrete crushing strength much larger than anti-
The characteristic of tensile strength, the tension force by drill rod wedging depart from one section of pile crown on pile crown top and lower part spalling, then use crane
Or excavator clears out.But the construction method efficiency that drill rod is inserted into spalling pile crown is low, of high cost, and when constructing noise it is big,
Dust weight, work progress is dangerous, and the pile crown for being relatively large in diameter, and drill rod is inserted into difficulty, it is difficult to spalling pile crown.
Broken pile machine in another broken pile machine construction method is made of several modules, each module have single oil pressure pump and
Drill steel, some module distributions are on the same horizontal plane in pile crown periphery；For circle stake and square pile, different modules is selected；It is each
Module is connected in parallel by fluid pressure line, realizes synchronization action；Oil pressure pump driving drill steel realizes linear motion, more in same section
Point extrudes pile body at the same time, realizes that pile body is broken in the section.Drill steel is driven to realize linear motion by oil pressure pump, by drill steel from four
Week wedging pile crown, realizes the purpose of spalling, and not only energy consumption is big, but also the spalling power of drill steel wedging pile crown is relatively low, for straight
The big pile crown in footpath, in order to realize the purpose of spalling, it is necessary to which in the intensive installation broken pile machine module of pile crown surrounding, while pile crown diameter is got over
It is big, it is necessary to drill steel it is longer, drill steel wedging pile crown is more difficult to.And the assembling and allocation and transportation of module need to expend the time, for circle
And there is also the phenomenon of constructional difficulties for the irregular pile crown beyond barrette.Broken pile machine is applying the cooperation of man-hour requirement crane,
There is certain requirement to construction site.Therefore, current forcible entry scheme urgently needs to improve.
Correspondingly, this area needs a kind of method for dismantling pile crown to solve the above problems.
The content of the invention
In order to solve the above problem of the prior art, be solution pile crown forcible entry efficiency it is low, it is of high cost and pollution
The problem of big, the present invention provides a kind of method for dismantling pile crown, this method includes：Determine pile crown waits to dismantle axle center face,
And form several operation holes on the axle center face to be dismantled；Pillar hydraulic pressure in hole is provided and splits stone implement, pillar liquid in the hole
Pressure break stone implement includes and the matched one group of expansion gear in several described operation holes；One group of expansion gear is inserted into corresponding
In several described operation holes and pillar hydraulic pressure is set in the hole to split stone implement action, so that the pile crown is along the axis to be dismantled
The spalling of heart face.
In the optimal technical scheme of above-mentioned forcible entry method, the pile crown includes steel reinforcement cage, according to steel in the steel reinforcement cage
The arrangement of muscle determines the diameter in the operation hole.
In the optimal technical scheme of above-mentioned forcible entry method, the diameter in the operation hole is adjacent less than or equal to the steel reinforcement cage
Spacing between reinforcing bar, the diameter of the expansion gear are consistent with the diameter in the operation hole.
In the optimal technical scheme of above-mentioned forcible entry method, according to the structure determination of the pile crown and the steel reinforcement cage
The position in operation hole and number.
In the optimal technical scheme of above-mentioned forcible entry method, the depth in the operation hole allows to accommodate the expansion gear
Length.
In the optimal technical scheme of above-mentioned forcible entry method, the expansion gear includes expansion housing and is arranged at described
Expansion tube in expanding shell body, the expansion housing expand housing for two-flap type, and the two-flap type expansion housing includes phase each other
To the first expansion housing and the second expansion housing, and in the state of being assembled before forcible entry, the first expansion housing and
The second expansion housing is arranged symmetrically on the axle center face to be dismantled.
In the optimal technical scheme of above-mentioned forcible entry method, pillar hydraulic pressure splits stone implement and is configured with oil pressure pump in the hole, institute
State the oil pressure pump that oil pressure pump drives for hand-driven oil pressure pump or external connection power.
In the optimal technical scheme of above-mentioned forcible entry method, the operation hole is formed using drilling machine.
In the optimal technical scheme of above-mentioned forcible entry method, the drilling machine is the drilling machine for being configured with dust collecting.
It will be appreciated to those of skill in the art that in the preferred technical solution of the present invention, by providing pillar in hole
Hydraulic pressure splits stone implement and several operation holes associated with splitting stone implement is formed on the same axle center face of pile crown, realizes and adopts
With splitting forcible entry operation of the stone implement to pile crown.Pillar hydraulic pressure, which splits stone implement, in hole has portability, construction site is not required, one
Worker can complete to operate, and reduce the forcible entry cost of pile crown, improve forcible entry efficiency.Specifically, pillar hydraulic pressure is split in hole
Stone implement includes expansion gear, expansion gear is inserted into pillar hydraulic pressure in several corresponding operation hole Zhong Bingshi holes splits stone implement and move
Make, realize pile crown along the axle center face spalling where operation hole.It is by way of static(al) spalling that pillar hydraulic pressure, which splits stone implement, in hole
Pile crown is cut, any adverse effect is not produced to remaining pile crown intensity, is not injured and bending reinforcing steel bar；In construction, shockproof, nothing
Noise, without dust, without slungshot, on surrounding enviroment without influence, reduce the construction pollution of forcible entry pile crown, improve the safety of construction
Property；The present invention can also be implemented to abolish to the pile crown of any diameter and shape, and construction is flexible.
Brief description of the drawings
With reference to the accompanying drawings and pile crown is combined to describe the preferred embodiment of the present invention, in attached drawing：
Fig. 1 is the structure diagram that pillar hydraulic pressure splits stone implement in hole；
Fig. 2A is the first schematic diagram of the expansion housing for the expansion gear that pillar hydraulic pressure splits stone implement in hole；
Fig. 2 B are the second schematic diagrames of the expansion housing for the expansion gear that pillar hydraulic pressure splits stone implement in hole；
Fig. 2 C are the 3rd schematic diagrames of the expansion housing for the expansion gear that pillar hydraulic pressure splits stone implement in hole；
Fig. 3 is the flow diagram one of the method for the forcible entry pile crown of an embodiment of the present invention；
Fig. 4 is the first schematic layout pattern in the operation hole in the method for the forcible entry pile crown of an embodiment of the present invention；
Fig. 5 is second of schematic layout pattern in the operation hole in the method for the forcible entry pile crown of an embodiment of the present invention；
Reference numerals list：
1st, hydraulic power source；2nd, expansion gear；21st, two-flap type expansion housing；22nd, three-clove style expansion housing；23rd, fFour piece type expands
Housing；3rd, energy distributor；4th, hydraulic tube；5th, pile crown；6th, operation hole；7th, axle center face to be dismantled；8th, expansion gear.
Embodiment
It will be apparent to a skilled person that this section embodiment is used only for explaining the technical principle of the present invention,
It is not intended to limit protection scope of the present invention.Although for example, the present embodiment be with reference to pile crown come describe the present invention forcible entry side
Method, but the forcible entry method of the present invention can be also used for the broken of other occasions, rock system hard brittle material cylindrical objects
Tear open, those skilled in the art as needed can make adjustment it, to adapt to specific application scenario.Obviously, after adjustment
Technical solution will fall into protection scope of the present invention.
It should be noted that in the description of the present invention, term " " center ", " on ", " under ", "left", "right", " vertical ",
The term of the direction indication such as " level ", " interior ", " outer " or position relationship is to be based on direction shown in the drawings or position relationship, this is only
Description is for only for ease of, rather than instruction or hint described device or element there must be specific orientation, with specific side
Position construction and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second ", " the 3rd " are only used for
Purpose is described, and it is not intended that instruction or hint relative importance.
In addition it is also necessary to explanation, in the description of the present invention, unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can mechanically connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.To those skilled in the art, it can understand that above-mentioned term exists as the case may be
Concrete meaning in the present invention.
As shown in Figure 1, Fig. 1 is the structure diagram that pillar hydraulic pressure splits stone implement in hole.With reference to Fig. 1, pillar hydraulic pressure is split in hole
Stone implement mainly includes hydraulic power source 1, expansion gear 2, energy distributor 3 and hydraulic tube 4.Energy distributor 3 is connected by hydraulic tube 4
It is connected between hydraulic power source 1 and expansion gear 2.It should be pointed out that in order to clearly illustrate be arranged on it is swollen in rock to be cracked
Swollen device 2, is shown as rock in Fig. 1 and is broken away along its pre-manufactured hole 5, and for the ease of indicating attached drawing, does not draw rock
Hatching line, but expansion gear 2 is not splitted correspondingly along the hatching line.As shown in Figure 1, split when lapicide makees, it is necessary to first
The prefabricated pre-manufactured hole 5 equal with the quantity of expansion gear 2 on rock, correspondingly sets an expansion dress in each hole 5
Put 2.Being sized and shaped to for pre-manufactured hole 5 is similar to expansion gear 2, so that expansion gear 2 can be smooth before inflation
It is contained in hole 5, and with regard to the hole wall of pre-manufactured hole 5 can be extruded after somewhat expanding.A kind of example is such as used as, is shown in Fig. 1
Stone equipment of splitting there are 4 expansion gears 2, but it is understood that, those skilled in the art can be according to actual conditions to split
Stone equipment selects the expansion gear of different numbers.Hydraulic power source 1 is used to provide fluid under pressure for expansion gear 2；And preferably, liquid
Potential source 1 is the hydraulic power source of manual actuation or the hydraulic power source of external connection power driving, and hydraulic tube 4 is high-pressure oil pipe.When hydraulic power source 1 is hand
During the hydraulic power source of dynamic driving, energy distributor 3 is connected on hydraulic power source by hydraulic tube 4 first, is then again led to expansion gear 2
Hydraulic tube 4 is crossed to be connected on energy distributor 3.When hydraulic power source of the hydraulic power source 1 for external connection power driving, energy distributor 3 can
To be built in the hydraulic power source of external connection power driving, so as to save the link of connection oil pressure conduction, improve work efficiency.Tool
Body, fluid under pressure divides hydraulic fluid port respectively through liquid from hydraulic power source 1 through hydraulic tube 4 to energy distributor 3, then from energy distributor 3
The partial pressure pipe of pressure pipe 4 is to expansion gear 2.It should be pointed out that what all parts in Fig. 1 were not necessarily drawn to scale.In order to
It can preferably show details, the illustrated dimensions of expansion gear 2 are exaggerated.Therefore, in attached drawing between all parts
Illustrated dimensions, which are not intended as, to be implied or is limited to the size and relative size of component.
As shown in Fig. 2A, Fig. 2 B and Fig. 2 C, Fig. 2A is the expansion housing for the expansion gear that pillar hydraulic pressure splits stone implement in hole
First schematic diagram, Fig. 2 B are the second schematic diagrames of the expansion housing for the expansion gear that pillar hydraulic pressure splits stone implement in hole, and Fig. 2 C are holes
Interior pillar hydraulic pressure splits the 3rd schematic diagram of the expansion housing of the expansion gear of stone implement.With reference to Fig. 2A, Fig. 2 B and Fig. 2 C, pillar in hole
The expansion gear that hydraulic pressure splits stone implement includes expansion housing and the expansion tube being arranged in expanding shell body.Specifically, expanding housing can
Be two-flap type expansion housing 21 either three-clove style expansion housing 22 either fFour piece type expansion housing 23 or more multi-clove type it is swollen
Swollen shell structure.In the state of splitting stone implement and assembling, more valves expansion housing of expansion gear is symmetrically and evenly distributed, and at it
Between form cavity, expansion tube is set in the cavity and against more valves expansion housing.Specifically, hydraulic pressure causes expansion tube
Expand and extrude more valves expansion housings and faced out along axle center and move.Expansion housing is due to being limited be subject to operation hole inner wall and to making
Industry hole wall produces mechanical swelling pressure, and when the hydraulic pressure in expansion tube is sufficiently large, expansion housing is to the mechanical swollen of operation hole inner wall
Swelling pressure power is also sufficiently large, so as to reach the effect of spalling rock mass.
The method research and development of the forcible entry pile crown of the present invention need to be familiar with the spalling mechanism that pillar hydraulic pressure in hole splits stone implement, Yi Jiyu
Other hydraulic pressure split the contrast of stone implement；It is familiar with rock mechanics and rock engineering (explosion, well lane engineering)；It is familiar with specific engineering to appoint
Business, such as the defects of the structure of pile crown, the requirement of forcible entry, existing forcible entry technology etc..Therefore the method for the forcible entry pile crown of the present invention
It is to be developed in inventor after largely testing and overcoming larger technical difficulty.
For example, inventor establishes spalling model using FEM-software ANSYS, physical model is calculated, is drawn
The fractue spacing that rock material produces under function load action, during realizing that pillar hydraulic pressure splits stone implement static state spalling in simulation hole
Rock (concrete) crushes the process of drawing crack, it was demonstrated that pillar hydraulic pressure splits the validity of stone implement forcible entry pile crown in hole.Utilize finite element
Software ANSYS establishes the static spalling technology mechanism model of analysis, by static spalling rock (concrete) Stress displacement cloud atlas, takes off
Show drilling hole stress changing rule during static spalling, illustrate the application mechanism of spalling technology in pile crown forcible entry etc..
As shown in figure 3, Fig. 3 is the flow diagram one of the method for the forcible entry pile crown of an embodiment of the present invention.The present invention
The method for tearing pile crown open mainly include the following steps that：
Step S10, determine pile crown waits to dismantle axle center face, and forms several operations on the axle center face to be dismantled
Hole；
Step S20, pillar hydraulic pressure in hole is provided split stone implement, pillar hydraulic pressure splits stone implement and includes and several described operations in hole
The matched one group of expansion gear in hole；
Step S30, one group of expansion gear is inserted into several corresponding described operation holes and makes pillar liquid in the hole
Pressure break stone implement acts, so that the pile crown is along axle center face the to be dismantled spalling.
It should be noted that concrete, as a kind of rock system hard brittle material, it is much smaller than resistance to compression with tensile strength
The characteristics of intensity.In consideration of it, in the inventive solutions, the rock spalling skill of stone implement is split by using pillar hydraulic pressure in hole
Art completes the forcible entry operation of pile crown, it is clear that split that the expansion gear of stone implement overcomes during pile crown forcible entry is completed is mixed
The tensile strength of solidifying soil layer, therefore dismantle difficulty and substantially reduce, forcible entry efficiency greatly improves.
Specifically, under the action of hydraulic pressure, expansion tube produces turgor movement, in the close limitation of the first operation hole inner wall
Under, expansion housing produces the pressure perpendicular to the first operation hole inner wall, and acts on concrete.Continuous with the bulbs of pressure increases
Add, the tension in concrete constantly increases, and for the superposition of tangential stress on the first operation hole axle heart face, makes axle center face
Tension it is maximum, become principal stress plane.And the turgor movement for expanding housing further concentrates on tension perpendicular to swollen
The hole wall of the swollen housing direction of motion.Drawing on the first operation hole axle heart face at the hole wall of the expansion housing direction of motion should
Occurs the radial cracking of certain length when power reaches the tensile strength by forcible entry concrete at first, at this.With the bulbs of pressure
Constantly expand, crackle will be along the first operation hole axle heart face perpendicular to expansion tube shell direction of motion extension, finally in axle center face
Centre is met perforation, the smooth plane of fracture is formed, so as to achieve the purpose that cutting and crushing.Pillar hydraulic pressure splits stone implement in one hole
One group of expansion gear can be operated at the same time, and pillar hydraulic pressure splits stone implement with floor space is small, convenience is carried, operating process in hole
The advantages that simple, can implement to abolish to the pile crown of any diameter and shape, and a construction personnel can be operated completion and break
Tear open, it is whole to dismantle process simple and flexible, the forcible entry efficiency of pile crown is improved, while saved forcible entry cost.Pillar hydraulic pressure in hole
Stone implement is split during spalling concrete, without noise, slungshot and dust pollution.Therefore by the present invention forcible entry method,
The quick spalling of pile crown can be cut and reduce forcible entry pollution, reduce manpower and energy consumption, and make forcible entry process safer
Reliably.
It should be noted that the execution sequence between step S10 and step S20 is intended only as a kind of example, it is not spy
Fixed.Specifically, those skilled in the art can replace the execution sequence between the two steps according to actual conditions, or
It is to perform the two steps at the same time.
It should also be noted that, axle center face to be dismantled is located at the root of pile crown part to be dismantled.The lower edge in operation hole
The pile foundation part that must retain must not be touched, needs to reserve some distances among both, avoids the pile foundation portion to that must retain during drilling
Divide and produce infringement.
Specifically, pile crown includes steel reinforcement cage, as a preferred embodiment, determining operation according to the arrangement of reinforcing bar in steel reinforcement cage
The diameter in hole.
As a preferred embodiment, the diameter in operation hole is less than or equal to the spacing between the adjacent reinforcing bar of steel reinforcement cage, expansion gear
Diameter is consistent with the diameter in operation hole.The diameter in operation hole is less than or equal to the spacing between steel reinforcement cage reinforcing bar, primarily to really
Protecting drill bit can smoothly drill, and be unlikely to be stopped by reinforcing bar limiting.And on the premise of it can be put into expansion gear, expansion gear
Diameter of the diameter closer to operation hole it is better, setting in this way, the hole wall in expansion gear and operation hole being capable of non-angular
Come into full contact with, so as to when the bulbs of pressure of expansion tube increase, expansion gear act on the pressure of operation hole hole wall uniformly and
Fully.
It should be noted that between expansion gear and operation hole there are gap in the case of, can expansion gear with
Thin curved metal gasket is placed between operation hole, to improve spalling effect.
When the spacing of steel reinforcement cage reinforcing bar is larger, the diameter in operation hole is as big as possible.Due to the diameter and work of expansion gear
The diameter in industry hole is consistent, and the diameter of expansion gear is also as big as possible at this time.The expansion gear and the contact surface of pile crown being relatively large in diameter
Product is big, therefore acts on that the bulbs of pressure inside pile crown are also big, is conducive to the spalling forcible entry of major diameter pile crown.When steel reinforcement cage reinforcing bar
Spacing it is smaller when, diameter less operation hole is set, and the diameter of expansion gear is also smaller at this time.
As a preferred embodiment, position and number according to pile crown and the structure determination operation hole of the steel reinforcement cage.
Specifically, as shown in Figure 4 and Figure 5, Fig. 4 is the operation hole in the method for the forcible entry pile crown of an embodiment of the present invention
The first schematic layout pattern, Fig. 5 be an embodiment of the present invention forcible entry pile crown method in operation hole second of cloth
Office's schematic diagram.With reference to Fig. 4 and Fig. 5, when the diameter of pile crown is smaller, discrete point can be formed on the axle center face 7 to be dismantled of pile crown 5
Several operation holes 6 of cloth, on the one hand realize to pile crown spalling cutting, on the other hand save the energy, reduce forcible entry into
This.When being relatively large in diameter of pile crown, can form several operation holes 6 of dense distribution on the axle center face 7 to be dismantled of pile crown 5,
To be inserted into more expansion gears 8, the forcible entry efficiency of pile crown is improved.
Preferably, in the case where the structure of steel reinforcement cage allows, operation hole is on the same axle center face of pile crown in symmetrical
It is uniformly distributed.Setting in this way, can make the bulbs of pressure of the expansion gear in insertion operation hole be evenly applied to stake
On head, more smooth spalling face is formed.
It should be noted that the layout type in foregoing operation hole is intended only as a kind of example, operation hole is treated brokenly in pile crown
Other layout type can also be had by tearing open on the face of axle center.Those skilled in the art can according in pile crown and pile crown steel reinforcement cage it is specific
Actual conditions, to carry out the layout in operation hole.
As a preferred embodiment, the depth in operation hole allows the length for accommodating expansion gear.So that expansion gear is applied to stake
Pressure inside head is uniform, and avoids expansion gear and expanding the phenomenon damaged during work by unbalance stress.More preferably
Ground, the depth penetration pile crown in operation hole.Setting in this way can strengthen overall forcible entry effect.
Specifically, expansion gear includes expansion housing and the expansion tube being arranged in expanding shell body.As a preferred embodiment,
Expand housing and expand housing for two-flap type, two-flap type expansion housing includes the first expansion housing and the second expanding shell toward each other
Body, in the state of being assembled before forcible entry, the first expansion housing and the second expansion housing are arranged symmetrically on axle center face to be dismantled,
So that the interface of the first expansion housing and the second expansion housing is on axle center face to be dismantled.First expansion housing and the second expansion
The two-flap type expanding shell body that housing is formed can be such that the bulbs of pressure more concentrate, spalling degree bigger.First expansion housing and the at the same time
The interface of two expansion housings is on axle center face to be dismantled, i.e., the mode on axle center face arrangement symmetrical above and below to be dismantled, it is ensured that
Expansion gear perpendicular to pile crown axle center face, improves the efficiency of broken pile head to the directions of the bulbs of pressure of pile crown.
As a preferred embodiment, operation hole can be formed using drilling machine, such as hydraulic gate.Since drilling machine is in boring procedure
In can produce solid particle and dust, therefore, drilling machine preferably selection and deployment has the drilling machine of dust collecting, for example, dust
Collection device can be bag filter.
As a preferred embodiment, in hole pillar hydraulic pressure split stone implement hydraulic power source can be external connection power driving oil pressure pump or
Hand-driven oil pressure pump.Forcible entry operation it is smaller or without external connection power under conditions of, hand-driven oil can be used
Press pump.Dismantling, operation is larger or when the construction time is urgent, can use the oil pressure pump of external connection power driving.Obviously, it is external
Power-actuated oil pressure pump is more efficient than hand-driven oil pressure pump, therefore in order to improve the forcible entry efficiency of pile crown, one kind is more
Preferable scheme is that the hydraulic power source that pillar hydraulic pressure splits stone implement in hole is the oil pressure pump of external connection power driving.
By foregoing description as can be seen that the method for the forcible entry pile crown of the present invention mainly includes：By providing pillar in hole
Hydraulic pressure splits stone implement and several operation holes associated with splitting stone implement is formed on the axle center face to be dismantled of pile crown, realizes and adopts
With splitting forcible entry operation of the stone implement to pile crown.Pillar hydraulic pressure, which splits stone implement, in hole has portability, construction site is not required, one
Worker can complete to operate, and reduce the forcible entry cost of pile crown, improve forcible entry efficiency.Specifically, pillar hydraulic pressure is split in hole
Stone implement includes expansion gear, and expansion gear is inserted into several corresponding operation holes, expansion gear is adjusted, by expansion gear
The interface of two valve housings is maintained on same axle center face, and pillar hydraulic pressure is split stone implement action, realize pile crown along
Axle center face spalling where operation hole.It is that pile crown is cut by way of static(al) spalling that pillar hydraulic pressure, which splits stone implement, in hole, not to surplus
Remaining pile crown intensity produces any adverse effect, does not injure and bending reinforcing steel bar；It is shockproof, noiseless, without dust, nothing in construction
Slungshot, on surrounding enviroment without influence, reduces the construction pollution for dismantling pile crown, improves the security of construction；The present invention may be used also
To implement to abolish to the pile crown of any diameter and shape, construction is flexible.
So far, the preferred embodiment shown in the drawings technical solution that the invention has been described, still, this area are had been combined
Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these embodiments.Without departing from this
On the premise of the principle of invention, those skilled in the art can make correlation technique feature equivalent change or replacement, these
Technical solution after changing or replacing it is fallen within protection scope of the present invention.
Claims (9)
- A kind of 1. method for dismantling pile crown, it is characterised in that this method includes：Determine pile crown waits to dismantle axle center face, and forms several operation holes on the axle center face to be dismantled；Pillar hydraulic pressure in hole is provided and splits stone implement, pillar hydraulic pressure splits stone implement including matched with several described operation holes in the hole One group of expansion gear；One group of expansion gear is inserted into several corresponding described operation holes and pillar hydraulic pressure in the hole is split stone implement Action, so as to pile crown axle center face to be dismantled spalling described in.
- 2. the method for forcible entry pile crown according to claim 1, it is characterised in that the pile crown includes steel reinforcement cage,The diameter in the operation hole is determined according to the arrangement of reinforcing bar in the steel reinforcement cage.
- 3. the method for forcible entry pile crown according to claim 2, it is characterised in that the diameter in the operation hole is less than or equal to institute The spacing between the adjacent reinforcing bar of steel reinforcement cage is stated, the diameter of the expansion gear is consistent with the diameter in the operation hole.
- 4. the method for forcible entry pile crown according to claim 1, it is characterised in that according to the pile crown and the steel reinforcement cage The position in operation hole and number described in structure determination.
- 5. the method for forcible entry pile crown according to claim 1, it is characterised in that the depth in the operation hole allows to accommodate institute State the length of expansion gear.
- 6. the method for forcible entry pile crown according to any one of claim 1 to 5, it is characterised in that the expansion gear bag Expansion housing and the expansion tube being arranged in the expanding shell body are included, the expansion housing expands housing for two-flap type, described Two-flap type expansion housing includes the first expansion housing and the second expansion housing toward each other, andIn the state of being assembled before forcible entry, the first expansion housing and the second expansion housing are on the axis to be dismantled Heart face is arranged symmetrically.
- 7. the method for forcible entry pile crown according to claim 1, it is characterised in that pillar hydraulic pressure splits stone implement configuration in the hole There are oil pressure pump, the oil pressure pump that institute's oil pressure pump drives for hand-driven oil pressure pump or external connection power.
- 8. the method for forcible entry pile crown according to claim 1, it is characterised in that the operation hole is formed using drilling machine.
- 9. the method for the forcible entry pile crown according to right wants 8, it is characterised in that the drilling machine is to be configured with dust collecting Drilling machine.
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| CN201711216451.9A CN107916668A (en) | 2017-11-28 | 2017-11-28 | The method for dismantling pile crown |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108560539A (en) * | 2018-05-24 | 2018-09-21 | 北京良乡蓝鑫水利工程设计有限公司 | A kind of filling pile head device for excising and its construction method |
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| CN101519965B (en) * | 2009-03-09 | 2011-01-19 | 黄晓东 | Method and device for exploiting stone |
| CN103147708A (en) * | 2013-03-27 | 2013-06-12 | 中国水利水电第七工程局成都水电建设工程有限公司 | Through type down hole hammer reverse circulation drilling dust collection device |
| CN204716246U (en) * | 2015-06-19 | 2015-10-21 | 北京旭日汇安矿山工程技术有限公司 | For splitting the expansion gear of stone equipment |
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2017
- 2017-11-28 CN CN201711216451.9A patent/CN107916668A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101519965B (en) * | 2009-03-09 | 2011-01-19 | 黄晓东 | Method and device for exploiting stone |
| CN103147708A (en) * | 2013-03-27 | 2013-06-12 | 中国水利水电第七工程局成都水电建设工程有限公司 | Through type down hole hammer reverse circulation drilling dust collection device |
| CN204716246U (en) * | 2015-06-19 | 2015-10-21 | 北京旭日汇安矿山工程技术有限公司 | For splitting the expansion gear of stone equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108560539A (en) * | 2018-05-24 | 2018-09-21 | 北京良乡蓝鑫水利工程设计有限公司 | A kind of filling pile head device for excising and its construction method |
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Application publication date: 20180417 |