CN106087984B - A kind of deformed bar cage and a kind of construction method of special-shaped uplift pile - Google Patents
A kind of deformed bar cage and a kind of construction method of special-shaped uplift pile Download PDFInfo
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- CN106087984B CN106087984B CN201610602889.XA CN201610602889A CN106087984B CN 106087984 B CN106087984 B CN 106087984B CN 201610602889 A CN201610602889 A CN 201610602889A CN 106087984 B CN106087984 B CN 106087984B
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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
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/10—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure
- E02D31/12—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure against upward hydraulic pressure
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Abstract
This application discloses a kind of deformed bar cage, including tubular steel reinforcement cage, and at least one enlarged portion, each enlarged portion includes at least three umbrella muscle around tubular steel reinforcement cage arrangement, and umbrella muscle can rotate between the first setting position and the second setting position；When umbrella muscle is located at the first setting position, the deformed bar cage is free to be placed into the stake holes using the deformed bar cage；When umbrella muscle is located at the second setting position, the distance of the end of the free end of umbrella muscle to the central axis of tubular steel reinforcement cage is 1.5 3.5 times of the radius of tubular steel reinforcement cage.Disclosed herein as well is a kind of construction method of the special-shaped uplift pile using above-mentioned deformed bar cage, above-mentioned deformed bar cage is located in the expansion section.The structure of the deformed bar cage is simple, can be with the concrete of pile body fully and uniformly in contact with enabling made uplift pile to bear larger anti-floating power in the bar construction as uplift pile.
Description
Technical field
The invention belongs to the underground construction field of building field, and in particular to a kind of deformed bar cage and a kind of abnormity are anti-
The construction method of pile pulling.
Background technology
In recent years, with the fast development of economic construction of China, the application of underground engineering is also increasingly extensive, Large Underground car
Storehouse, basement, civil air defense constructions and installations, the development and utilization of underground square and underground traffic are increasingly common, to embedded depth of foundation requirement
Also more and more higher.Yet with the presence of underground water, upward buoyancy is produced to underground structure, if buoyancy is excessive,
Building bottom plate can be caused, and protuberance or building integrally float upwards, influence the normal use of building.Currently used anti-floating
Measure mainly uses uplift pile or Pulling-Resistant Anchor Rod, and uplift pile is typically cast-in-place concrete pile, inside plus steel reinforcement cage, the law technology
Maturation, reliable in quality, but the method rely primarily on pile side friction and provide anti-floating power, and general pile body is longer, required reinforcing bar and coagulation
Soil material is more, and cost is high.Pulling-Resistant Anchor Rod provides anti-floating power by the frictional resistance between injecting cement paste and the soil body, it is possible to provide anti-floating power is general
All less, if big to buoyancy suffered by building, required anchor pole is large number of, and Multi anchorage effect is there may be between anchor pole, drop
The low withdrawal resistance of single anchor rod, actual building cost are even above uplift pile.
The patent application of application number 201510041358.3, disclose a kind of enlarged footing bellows anchor pole, including finish rolling screw thread
Reinforcing bar, bellows expansion extruding expanding body, sleeve pipe, finish rolling deformed bar stretches into bellows expansion extruding expanding body, and it is squeezed in bellows expansion
Internal bottom is provided with grouting material back cover, and it is provided with stop grouting plug, fining twisted steel in the porch of bellows expansion extruding expanding body
Muscle top suit is fixed with backing plate, and finish rolling deformed bar is set with prestressing nut, and backing plate top surface is fixed with preformed hole
Taper chapeau de fer and taper chapeau de fer covers the finish rolling deformed bar for being set with prestressing nut.This application also discloses enlarged footing capsule
The construction method of formula anchor pole, step include：Drilling and pore-forming, high pressure jet grouting reaming construction, enlarged footing bellows anchor pole lay,
Grout injection, benefit slurry, tensioning and locking in pouch.The invention in bottom by setting bellows enlarged body to increase injecting cement paste and soil
Frictional resistance between body, while top expands body portion and still provides certain end resistance, but the anchor pole of enlarged footing bellows shown in this application
There is provided pulling force can not be too high, otherwise anchor pole may be caused to be extracted from injecting cement paste, made because of bond stress deficiency between anchor pole and injecting cement paste
Failed into resistance to plucking system.
The patent application of application number 98124854.3, disclose a kind of construction method of cast-in-place concrete anchor pile, its step
For：Outer tube is squeezed into ground；Weight is set to ram repeatedly along outer tube, stake stomidium is formed in the bottom of outer tube；Will be above-mentioned
Hammer proposes；By in the steel reinforcement cage insertion outer tube with expandable diameter part；Inner sleeve is inserted in above-mentioned steel reinforcement cage；Along inner sleeve repeatedly
Carry out filler and ram action, be in horn-like expansion by the expandable diameter part in above-mentioned steel reinforcement cage, enlarged footing is formed in stake end；
While gradually proposing above-mentioned inner sleeve and outer tube, concrete material is inserted into the inner sleeve, forms rigid concrete-pile
Body.Compacting material in the pile body base expanding and base expanding part is using the material such as building waste or dry concrete, using tamping unit by steel reinforcement cage
Expand, so as to provide higher withdrawal resistance.But the pile body has the disadvantage that：1st, enlarged body is squeezed through hammering using discrete material
Form, in work progress caused noise and vibration surrounding enviroment are had a great influence, be not suitable for intensive in city and neighboring buildings
Region construction；2nd, steel reinforcement cage extends out shape and is difficult to be precisely controlled.Due to operational not strong, the use of this method at present of the method
Hexyl originally stays cool.
The content of the invention
The purpose of the application, which first consists in, provides a kind of deformed bar cage, the deformed bar cage it is easy for construction, technology can
Lean on, available for the bar construction for making uplift pile, specific technical scheme is：
A kind of deformed bar cage, including the tubular steel reinforcement cage that vertical muscle and stirrup by being connected with each other are formed, the abnormity
Steel reinforcement cage also includes at least one enlarged portion, and each enlarged portion includes at least three umbrella muscle around tubular steel reinforcement cage arrangement, umbrella
Muscle is in direct rod shape, and umbrella muscle one end is hinged on tubular steel reinforcement cage, and the other end is free end, and umbrella muscle can rotate around a hinge axes,
The axis of the hinge axes vertical cylindrical steel reinforcement cage, the rotation of umbrella muscle are entered in the plane where the axis of tubular steel reinforcement cage
OK, two extreme positions that umbrella myospasm moves are referred to as the first setting position and set with second by slewing area between 60-140 °
Positioning is put；
When the axis and horizontal plane of tubular steel reinforcement cage, when umbrella muscle is located at the first setting position, the free end position of umbrella muscle
The top of horizontal plane where the hinge axes of the umbrella muscle；When umbrella muscle is located at the second setting position, the free end of umbrella muscle is located at should
The lower section of horizontal plane where the hinge axes of umbrella muscle；
When the axis and horizontal plane of tubular steel reinforcement cage, under external force, umbrella muscle is rotated up, and is reached first and is set
After positioning is put and cancels external force, umbrella influential point of tendons freely rotates down under gravity, reaches the second setting position；When umbrella muscle position
When the second setting position, umbrella muscle is radially arranged in the surrounding of tubular steel reinforcement cage, and the free end of umbrella muscle is to away from tubular steel
The direction extension of muscle cage；
When umbrella muscle is located at the first setting position, the deformed bar cage, which is free to be placed into, uses the deformed bar cage
Stake holes in；When umbrella muscle is located at the second setting position, the end of the free end of umbrella muscle to the central axis of tubular steel reinforcement cage
Distance is 1.5-3.5 times of the radius of tubular steel reinforcement cage.
Further, the tubular steel reinforcement cage also includes be hinged axial rib, is hinged axial rib and is corresponded with enlarged portion, is hinged axial rib
In a ring, and with vertical muscle or stirrup it is connected, is hinged axial rib and is set along with the plane of the axis perpendicular of tubular steel reinforcement cage；Umbrella muscle
One end be provided with connection ring, connection ring is enclosed on be hinged axial rib.Be hinged axial rib is set on tubular steel reinforcement cage, and in umbrella muscle
One end connection ring is set, and connection ring is set on be hinged axial rib, this structure can provide stably connection and umbrella muscle
The flexibility of rotation, it ensure that effective connection of umbrella muscle and tubular steel reinforcement cage.
Further, corresponding each enlarged portion respectively sets a upper limit reinforced steel bar ring and a lower limit reinforced steel bar ring；Upper limit
Reinforced steel bar ring and lower limit reinforced steel bar ring are annular in shape, and are arranged at the lateral surface of tubular steel reinforcement cage, and are arranged in corresponding same
The both sides of the be hinged axial rib of one enlarged portion；When the axis and horizontal plane of tubular steel reinforcement cage, upper limit reinforced steel bar ring positioned at pair
The top of the be hinged axial rib of same enlarged portion is answered, lower limit reinforced steel bar ring is positioned at the lower section of the be hinged axial rib of corresponding same enlarged portion；
First setting position and the axis of tubular steel reinforcement cage have angle, and the number of degrees of the angle are 5-10 °, and umbrella muscle is positioned at the
During one setting position, leant with the upper limit reinforced steel bar ring corresponding to it；
Second setting position and the plane of the axis perpendicular to tubular steel reinforcement cage have angle, and the number of degrees of the angle are 5-
45 °, when umbrella muscle is located at the second setting position, leant with the lower limit reinforced steel bar ring corresponding to it.
When deformed bar cage be used to make uplift pile, upper limit reinforced steel bar ring can be limited when umbrella muscle is rotated up more than the
One setting position, to ensure that umbrella muscle can be rotated down successfully in the presence of self gravitation；Lower limit reinforced steel bar ring can be by umbrella
Muscle is limited in the second setting position, ensures the connection effect of umbrella muscle and concrete.
Further, the deformed bar cage, in addition to the umbrella muscle guider to be shifted when umbrella myospasm is dynamic is prevented, umbrella muscle is led
It is fixed on to device on tubular steel reinforcement cage.Umbrella muscle guider may insure that umbrella muscle can be revolved according to track set in advance
Turn, avoid umbrella muscle when being rotated down, produce Caton phenomenon, prevent umbrella muscle from successfully reaching the second setting position.
Further, it is provided with claw hook on the umbrella muscle.Claw hook can further enhance the company between umbrella muscle and concrete
Connect, so as to further improve the intensity of the uplift pile where it.
The structure of the deformed bar cage is simple, and its agent structure is tubular steel reinforcement cage, tubular steel reinforcement cage using it is existing into
Cooking technique is made, and without increasing new process equipment, can be effectively utilized existing technological facilities and is processed.It is therein
The main body of enlarged portion is umbrella muscle, and umbrella muscle is looped around around tubular steel reinforcement cage, can be with stake in the bar construction as uplift pile
The concrete of body is fully and uniformly in contact with enabling made uplift pile to bear larger anti-floating power.
After the deformed bar cage, which is poured, forms uplift pile in concrete, part where umbrella muscle can form one accordingly
Individual expansion section, after the buoyancy by body of groundwater, the pile body of uplift pile can by upward buoyancy, due to expansion section compared to
The other parts of pile body are outwardly, and the upper surface of the outwardly part of expansion section can be made expansion by the downward resistance of the soil body
Big portion is integrally forced downwards.When umbrella muscle is located at the second setting position, the free end of umbrella muscle oliquely downward tilts, and works as expansion
When portion is integrally forced downwards, the stress suffered by umbrella muscle is tension, and it is relatively low thus can to make up concrete tensile strength
Defect, expansion section is set to bear bigger tension.
After if deformed bar cage is poured in concrete, the free end of umbrella muscle is towards oblique upper, then suffered by umbrella muscle
Stress be compression, umbrella muscle can not provide drawing-resistant function for expansion section, because the tensile strength of concrete is relatively low, in underground water
Under the buoyancy of body and the drag effect of the top soil body, the outwardly part of expansion section is possible to be cut away, and loses expansion section
Remove uplift effect.
The application also provides a kind of construction method of special-shaped uplift pile, and the special-shaped uplift pile includes the main body being in the form of a column, different
The lower end of shape uplift pile is an expansion section, and to strengthen the intensity of the special-shaped uplift pile, the connection of main body and expansion section can adopt
It is excessive with circular arc, and the center of circle of circular arc is located in expansion section；
The construction method of the special-shaped uplift pile comprises the following steps：
(1) bar construction, is made：Prepare deformed bar cage, steel anchor pole, connector and nut；
The deformed bar cage includes the tubular steel reinforcement cage being made up of the vertical muscle and stirrup being connected with each other, the deformed bar
Cage also includes at least one enlarged portion, and each enlarged portion includes at least three umbrella muscle around tubular steel reinforcement cage arrangement, and umbrella muscle is in
Direct rod shape, umbrella muscle one end are hinged on tubular steel reinforcement cage, and the other end is free end, and umbrella muscle can rotate around a hinge axes, described
The axis of hinge axes vertical cylindrical steel reinforcement cage, the rotation of umbrella muscle are carried out in the plane where the axis of tubular steel reinforcement cage, are turned
Dynamic scope is referred to as the first setting position and the second setting position between 60-140 °, by two extreme positions that umbrella myospasm moves
Put；
When the axis and horizontal plane of tubular steel reinforcement cage, when umbrella muscle is located at the first setting position, the free end position of umbrella muscle
The top of horizontal plane where the hinge axes of the umbrella muscle；When umbrella muscle is located at the second setting position, the free end of umbrella muscle is located at should
The lower section of horizontal plane where the hinge axes of umbrella muscle；
When the axis and horizontal plane of tubular steel reinforcement cage, under external force, umbrella muscle is rotated up, and is reached first and is set
After positioning is put and cancels external force, umbrella influential point of tendons freely rotates down under gravity, reaches the second setting position；When umbrella muscle position
When the second setting position, umbrella muscle is radially arranged in the surrounding of tubular steel reinforcement cage, and the free end of umbrella muscle is to away from tubular steel
The direction extension of muscle cage；
When umbrella muscle is located at the first setting position, the deformed bar cage, which is free to be placed into, uses the deformed bar cage
Stake holes in；When umbrella muscle is located at the second setting position, the end of the free end of umbrella muscle to the central axis of tubular steel reinforcement cage
Distance is 1.5-3.5 times of the radius of tubular steel reinforcement cage.
The screw thread being engaged with the screw thread of above-mentioned nut is provided with one end of steel anchor pole；Steel anchor pole can use this
Body sets threaded fining twisted steel, or using other types of reinforcing bar and secondary operation screw thread.
Connector is fixed on deformed bar cage, steel anchor pole is passed through connector, finally nut driving exists
On the screw thread of steel anchor pole, deformed bar cage is fixed on steel anchor pole, forms bar construction；
(2), stake holes is formed, stake holes includes positioned at the main aperture for connecting ground and is connected to master to earth drilling with drilling machine
The bulb of hole lower end, bulb are used to accommodate deformed bar cage made in step (1)；
(3), the bar construction made by step (1) is transferred in stake holes, is received into the enlarged portion of deformed bar cage
In bulb, the umbrella muscle of enlarged portion, which rotates down, reaches the second setting position；
Before bar construction is transferred in stake holes, all umbrella muscle are turned into the first setting position first；
(4), the casting concrete in stake holes, forms special-shaped uplift pile, and the pile body of uplift pile forms expansion section in bulb.
Further, the tubular steel reinforcement cage also includes be hinged axial rib, is hinged axial rib and is corresponded with enlarged portion, is hinged axial rib
In a ring, and with vertical muscle or stirrup it is connected, is hinged axial rib and is set along with the plane of the axis perpendicular of tubular steel reinforcement cage；Umbrella muscle
One end be provided with connection ring, connection ring is enclosed on be hinged axial rib.Be hinged axial rib is set on tubular steel reinforcement cage, and in umbrella muscle
One end connection ring is set, and connection ring is set on be hinged axial rib, this structure can provide stably connection and umbrella muscle
The flexibility of rotation, it ensure that effective connection of umbrella muscle and tubular steel reinforcement cage.
Further, corresponding each enlarged portion respectively sets a upper limit reinforced steel bar ring and a lower limit reinforced steel bar ring；Upper limit
Reinforced steel bar ring and lower limit reinforced steel bar ring are annular in shape, and are arranged at the lateral surface of tubular steel reinforcement cage, and are arranged in corresponding same
The both sides of the be hinged axial rib of one enlarged portion；When the axis and horizontal plane of tubular steel reinforcement cage, upper limit reinforced steel bar ring positioned at pair
The top of the be hinged axial rib of same enlarged portion is answered, lower limit reinforced steel bar ring is positioned at the lower section of the be hinged axial rib of corresponding same enlarged portion；
First setting position and the axis of tubular steel reinforcement cage have angle, and the number of degrees of the angle are 5-10 °, and umbrella muscle is positioned at the
During one setting position, leant with the upper limit reinforced steel bar ring corresponding to it；
Second setting position and the plane of the axis perpendicular to tubular steel reinforcement cage have angle, and the number of degrees of the angle are 5-
45 °, when umbrella muscle is located at the second setting position, leant with the lower limit reinforced steel bar ring corresponding to it.
Upper limit reinforced steel bar ring can be limited more than the first setting position when umbrella muscle is rotated up, to ensure umbrella muscle in self gravitation
In the presence of can successfully rotate down；Umbrella muscle can be limited in the second setting position by lower limit reinforced steel bar ring, ensure umbrella muscle with
The connection effect of concrete.
Further, deformed bar cage also includes preventing the umbrella muscle guider to shift when umbrella myospasm is dynamic, and umbrella muscle is oriented to
Device is fixed on tubular steel reinforcement cage.Umbrella muscle guider may insure that umbrella muscle can be revolved according to track set in advance
Turn, avoid umbrella muscle when being rotated down, produce Caton phenomenon, prevent umbrella muscle from successfully reaching the second setting position.
Further, it is provided with claw hook on the umbrella muscle.Claw hook can further enhance the connection between umbrella muscle and concrete,
So as to further improve the intensity of the uplift pile where it.
In the construction method of the special-shaped uplift pile, used steel reinforcement cage is deformed bar cage, the knot of the deformed bar cage
Structure is simple, and its agent structure is tubular steel reinforcement cage, and tubular steel reinforcement cage is made using current mature technology, new without increasing
Process equipment, existing technological facilities can be effectively utilized and be processed.The main body of enlarged portion therein is umbrella muscle, umbrella muscle ring
It is wound on around tubular steel reinforcement cage, in the bar construction as uplift pile, can be connect fully and equably with the concrete of pile body
Touch, made uplift pile is born larger anti-floating power.
Deformed bar cage is carried out with the connection of steel anchor pole by the way of connector and nut are combined, and is avoided using weldering
Mode is connect to connect deformed bar cage and steel anchor pole, it is ensured that the stabilization of steel anchor pole internal structure.Steel anchor pole is using weldering
When the mode of connecing connects, the internal structure of steel anchor pole can be made to be affected, and then have influence on the intensity of steel anchor pole, reduce abnormity
The intensity of uplift pile.
After the deformed bar cage, which is poured, forms uplift pile in concrete, part where umbrella muscle can form one accordingly
Individual expansion section, after the buoyancy by body of groundwater, the pile body of uplift pile can by upward buoyancy, due to expansion section compared to
The other parts of pile body are outwardly, and the upper surface of the outwardly part of expansion section can be made expansion by the downward resistance of the soil body
Big portion is integrally forced downwards.When umbrella muscle is located at the second setting position, the free end of umbrella muscle oliquely downward tilts, and works as expansion
When portion is integrally forced downwards, the stress suffered by umbrella muscle is tension, and it is relatively low thus can to make up concrete tensile strength
Defect, expansion section is set to bear bigger tension.
After if deformed bar cage is poured in concrete, the free end of umbrella muscle is towards oblique upper, then suffered by umbrella muscle
Stress be compression, umbrella muscle can not provide drawing-resistant function for expansion section, because the tensile strength of concrete is relatively low, in underground water
Under the buoyancy of body and the drag effect of the top soil body, the outwardly part of expansion section is possible to be cut away, and loses expansion section
Remove uplift effect.
In the present invention, in the bar construction in special-shaped uplift pile, deformed bar cage is only provided with expansion section, then will
Steel anchor pole is connected on deformed bar cage, and steel anchor pole on the one hand can be as the work that deformed bar cage is put into stake holes
With on the other hand a certain degree of enhancing can be carried out to the tensile strength of special-shaped uplift pile, to make up concrete tensile strength
Deficiency.Part uses steel reinforcement cage, can be effectively reduced the construction cost of special-shaped uplift pile, can also improve the construction of special-shaped uplift pile
Efficiency.
Brief description of the drawings
Fig. 1 is a kind of structural representation of embodiment of deformed bar cage.
Fig. 2 is the partial enlarged drawing of H parts in Fig. 1.
Fig. 3 be in Fig. 2 A-A to sectional view.
Fig. 4 is the another embodiment of umbrella muscle guider.
Fig. 5 is Fig. 1 top view, and stirrup, vertical muscle, be hinged axial rib and umbrella muscle are exemplarily only shown in figure.
Fig. 6, Fig. 7, Fig. 8 and Fig. 9 be respectively the umbrella muscle of deformed bar cage second, third, the 4th and the 5th kind of embodiment
Sketch.
When Figure 10 is special-shaped resistance to plucking pile driving construction, the schematic diagram after formation stake holes.
When Figure 11 is special-shaped resistance to plucking pile driving construction, the schematic diagram that bar construction is put into stake holes.
When Figure 12 is special-shaped resistance to plucking pile driving construction, after the deformed bar cage on bar construction drops into the bulb in stake holes
Schematic diagram.
When Figure 13 is special-shaped resistance to plucking pile driving construction, concrete cast, the schematic diagram formed after special-shaped uplift pile are completed.
Embodiment
Deformed bar cage and special-shaped uplift pile are combined below, to be described in further detail to the application.
Figure 13, special-shaped uplift pile 100 are referred to, the special-shaped uplift pile 100 includes the main body 101 being in the form of a column, in main body 101
Lower end be connected with an expansion section 102, main body 101 and expansion section 102 are excessive using circular arc, and the center of circle of circular arc is located at expansion section
Interior, the special-shaped uplift pile 100 is internally provided with bar construction 200.The Specific construction step of the special-shaped uplift pile 100 is as follows：
(1) bar construction 200, is made：Prepare deformed bar cage, steel anchor pole, connector and nut.
Referring to Fig. 1, in the present embodiment, deformed bar cage is made using spiral for prestressed concrete, and this is different
Shape steel reinforcement cage includes the tubular steel reinforcement cage being made up of the vertical muscle 11 and stirrup 12 being connected with each other, and stirrup 12 in the shape of a spiral, indulges muscle
11 are welded on the lateral surface of stirrup 12.Biography can be made full use of by making deformed bar cage using spiral for prestressed concrete
The processing equipment of system, and the intensity of combination and the special-shaped uplift pile of deformed bar cage and concrete can be ensured.
The deformed bar cage also includes at least one enlarged portion, and each enlarged portion includes at least three around tubular reinforcing bar
The umbrella muscle of cage arrangement, umbrella muscle is in direct rod shape, and umbrella muscle one end is hinged on tubular steel reinforcement cage, and the other end is free end；Umbrella muscle can be around
One hinge axes rotate, the axis of the hinge axes vertical cylindrical steel reinforcement cage, the axis of the rotation of umbrella muscle in tubular steel reinforcement cage
Carried out in the plane at place, slewing area is referred to as first between 60-140 °, by two extreme positions that umbrella myospasm moves and set
Positioning is put and the second setting position.
When the axis and horizontal plane of tubular steel reinforcement cage, when umbrella muscle is located at the first setting position, the free end position of umbrella muscle
The top of horizontal plane where the hinge axes of the umbrella muscle；When umbrella muscle is located at the second setting position, the free end of umbrella muscle is located at should
The lower section of horizontal plane where the hinge axes of umbrella muscle.
When the axis and horizontal plane of tubular steel reinforcement cage, under external force, umbrella muscle is rotated up, and is reached first and is set
After positioning is put and cancels external force, umbrella influential point of tendons freely rotates down under gravity, reaches the second setting position；When umbrella muscle position
When the second setting position, umbrella muscle is radially arranged in the surrounding of tubular steel reinforcement cage, and the free end of umbrella muscle is to away from tubular steel
The direction extension of muscle cage；When umbrella muscle is located at the first setting position, the deformed bar cage is free to be placed into different using this
In the stake holes of shape steel reinforcement cage；When umbrella muscle is located at the second setting position, the end of the free end of umbrella muscle is into tubular steel reinforcement cage
The distance of mandrel line is 1.5-3.5 times of the radius of tubular steel reinforcement cage.
Deformed bar cage includes five enlarged portions in the present embodiment, and each enlarged portion includes three umbrella muscle 13, in tubular
Be hinged axial rib 21 is welded with the lateral surface of the vertical muscle 11 of steel reinforcement cage, be hinged axial rib has five, is corresponded with five enlarged portions,
Be hinged axial rib 21 is annular in shape, is set along with the perpendicular plane of the axis 31 of tubular steel reinforcement cage；One end of umbrella muscle 13 is provided with company
Ring 131 is connect, connection ring 131 is enclosed on be hinged axial rib 21, and the other end of umbrella muscle is free end 132.It is appreciated that be hinged axial rib
The inner side of vertical muscle can be welded on, or is welded on stirrup.
In the present embodiment, umbrella muscle is enclosed on be hinged axial rib 21 by connection ring 131, is hinged where the center line of axial rib 21
Plane turn into corresponding umbrella myospasm it is dynamic when institute around hinge axes place plane.When the axis 31 of the deformed bar cage hangs down with horizontal plane
When straight, i.e. deformed bar cage is vertically arranged, and when umbrella muscle is located at the first setting position, the free end 132 of umbrella muscle is located at what is connected
The top of plane where the center line of be hinged axial rib, when umbrella muscle is located at the second setting position, the free end 132 of umbrella muscle, which is located at, to be connected
The lower section of plane where the center line of the be hinged axial rib connect.
Referring to Fig. 1, only by taking umbrella muscle 140 as an example, illustrate the be hinged of the first setting position, the second setting position and umbrella muscle
Relation between horizontal plane three where axis, in Fig. 1,141 signified plane of mark are horizontal where the hinge axes of umbrella muscle
Face, the plane where the center line for the be hinged axial rib that the plane is actually also connected by umbrella muscle 140, the pointed location of mark 142 are
First setting position of umbrella muscle 140, the pointed location of mark 143 are the second setting position of umbrella muscle 140, the first setting position and the
Angle theta between two setting positions is the slewing area of umbrella muscle 140.
When umbrella muscle is located at the first setting position, the deformed bar cage is free to place the stake being described below
In hole.When umbrella muscle is located at the second setting position, in the present embodiment, the end of the free end 132 of umbrella muscle is into tubular steel reinforcement cage
The distance L of mandrel line 31 is 2.5-3 times of the radius R of tubular steel reinforcement cage.Left part in Fig. 1, it is shown that part umbrella muscle
13 are pivotally lowered into state during the second setting position by the first setting position.
It is appreciated that deformed bar cage can only set an enlarged portion, or required according to specific, at least provided with two
Individual, three, four or five enlarged portions, even more enlarged portions；Each enlarged portion according to actual conditions can also set to
Four, five, the six roots of sensation or seven umbrella muscle less, even more more umbrella muscle.
The upper limit reinforced steel bar ring 22 and lower limit for limiting the slewing area of umbrella muscle 13 are additionally provided with tubular steel reinforcement cage
Reinforced steel bar ring 23, corresponding each enlarged portion respectively sets a upper limit reinforced steel bar ring and a lower limit reinforced steel bar ring, and is arranged in
The both sides of the be hinged axial rib of corresponding same enlarged portion；When the axis and horizontal plane of tubular steel reinforcement cage, upper limit reinforced steel bar ring
Positioned at the top of the be hinged axial rib of corresponding same enlarged portion, lower limit reinforced steel bar ring is positioned at the be hinged axial rib of corresponding same enlarged portion
Lower section；Upper limit reinforced steel bar ring and lower limit reinforced steel bar ring in the present embodiment is annular in shape, and is welded on the lateral surface of vertical muscle.
The axis 31 of first setting position and tubular steel reinforcement cage has angle α, and the number of degrees of the angle α are 5-10 °, umbrella muscle 13
During positioned at the first setting position, leant with the upper limit reinforced steel bar ring 22 corresponding to it；
Second setting position and the plane 33 of the axis 31 perpendicular to tubular steel reinforcement cage have angle β, the angle β number of degrees
For 5-45 °, when umbrella muscle is located at the second setting position, leant with the lower limit reinforced steel bar ring corresponding to it.
In the present embodiment, upper limit reinforced steel bar ring 22 and lower limit reinforced steel bar ring 23 are welded on vertical muscle 11, the degree of angle α
Number is 5-8 °, and the angle β number of degrees are 40-45 °.
It is appreciated that above-mentioned angle α can be configured from angle β according to different requirements, for example, angle α the number of degrees also
It can be arranged between 8-10 °, the angle β number of degrees can be arranged between 5-10 °, 10-20 °, 20-30 °, 30-45 °.
It is appreciated that upper limit reinforced steel bar ring and lower limit reinforced steel bar ring can be cancelled, when tubular steel reinforcement cage is provided with jointed shaft
Muscle, and when the be hinged axial rib be located at the outside of tubular steel reinforcement cage, this, which is hinged axial rib, can play position-limiting action.
Deformed bar cage also includes preventing the umbrella muscle guider to shift when umbrella myospasm is dynamic, and umbrella muscle guider is fixed
On tubular steel reinforcement cage.Please refer to Fig. 2 and Fig. 3, in the present embodiment, umbrella muscle guider includes two pieces of parallel guiding
Plate 25, the relative both sides in left and right that two pieces of guide plates are separately positioned on umbrella muscle 13 are simultaneously welded on be hinged axial rib 21, every umbrella muscle
Both sides respectively set one piece of guide plate 25, under the limitation of guide plate, umbrella muscle is rotated according to default track.It can manage
Solution, guide plate can be directly anchored on tubular steel reinforcement cage by being welded on be hinged axial rib, can also be indirectly fixed to tubular
On steel reinforcement cage, such as tubular reinforcing bar can be indirectly fixed to by being welded on upper limit reinforced steel bar ring or lower limit reinforced steel bar ring
On cage.
Guide plate can respectively set one piece in the both sides of every umbrella muscle, when neighbouring umbrella muscle arranges in the vertical direction
Into one with the straight line of the diameter parallel of tubular steel reinforcement cage when, neighbouring guide plate can connect it is integral, it is convenient plus
Work and installation.
Referring to Fig. 4, guide plate can be substituted with guide rod 26, the both sides of every umbrella muscle respectively set a guide rod 26,
Guide rod is in circular arc, and the both ends of guide rod are separately fixed on upper limit reinforced steel bar ring and lower limit reinforced steel bar ring.It is appreciated that lead
Rectangle or analogous shape can be bent into bar.Guide rod can also be fixed on the be hinged axial rib of tubular steel reinforcement cage, vertical muscle
Or on stirrup.Guide rod can also be designed to direct rod shape, and the one end for being directed to bar is fixed on tubular steel reinforcement cage.
Claw hook is provided with umbrella muscle, to further enhance the connection between umbrella muscle and concrete.Please refer to Fig. 5,
In the present embodiment, claw hook 271 is designed to reversed acanthoid, and installed in the free end of umbrella muscle 13.It is appreciated that claw hook can be with
Other shapes are designed to, referring to Fig. 6, claw hook 272 is corynebacterium, and it is perpendicular with reinforcement；Referring to Fig. 7, claw hook 273
For ring-type；Referring to Fig. 8, claw hook 274 is straight crotch；Referring to Fig. 9, claw hook 275 is circular arc crotch.As long as umbrella muscle can be strengthened
With the contact area of concrete, and improve and can also require to design according to specific with the bonding strength of concrete, the shape of claw hook
For other shapes.
After deformed bar cage completes, start installation connecting element, steel anchor rod and nut, in embodiment, steel
Anchor pole is made using fining twisted steel, and the nut that fining twisted steel can be directly with respective model directly coordinates, and is added without secondary
Work screw thread.Connector includes upper connector 18 and lower connector 16, is made of steel plate.
Please continue to refer to Fig. 1, after deformed bar cage completes, it is respectively welded on the top of deformed bar cage and bottom
Upper connector 18 and lower connector 16, steel anchor pole 14 is then passed through into upper connector and lower connector, and nut driving is existed
On steel anchor rod, wherein top nut 17 is arranged on the both sides up and down of upper connector, and lower nut 15 is above and below lower connector
Both sides；The axis of steel anchor pole 14 is overlapping with the axis 31 of tubular steel reinforcement cage.Bar construction 200 completes.
It is appreciated that steel anchor rod can also be set using other one end threaded screw-thread steel or hot rolling plain bar come
Make, screw thread can be processed with pre-production or later-stage secondary.Connector can also be fixed using bolt or colligation by the way of fix
On deformed bar cage.
(2), referring to Fig. 10, with drilling machine to earth drilling, stake holes is formed, stake holes includes the He of main aperture 41 on connection ground
The bulb 42 of the lower end of main aperture 41 is connected to, the transition of arc section 43, the circle of arc section 43 are used between main aperture 41 and bulb 42
The heart is located in bulb 42.Bulb 42 is used to accommodate deformed bar cage made in step (1).
(3) Figure 11 and Figure 12, are referred to, the bar construction made by step (1) is transferred in stake holes, makes deformed bar
The enlarged portion of cage is received into bulb, and the umbrella muscle of enlarged portion is located at the second setting position.
Before bar construction is transferred in stake holes, all umbrella muscle are rotated up first, make umbrella muscle and upper limit steel
Muscle ring is leant, and then bar construction is put into stake holes, and in the decentralization process of bar construction, the free end of umbrella muscle can be against
On the inwall of stake holes, and along stake holes inwall glide, until deformed bar cage reach bulb, umbrella muscle under gravity to
It is lower to rotate and be resisted against on lower limit reinforced steel bar ring.
During the decline of bar construction, due to the restriction effect of upper limit reinforced steel bar ring, umbrella muscle will not be due to reinforcing bar knot
Structure rocks, and umbrella muscle is rotated up more than the first setting position, forms dead point, causes deformed bar cage to expand dropping to
Behind portion, umbrella muscle can not under gravity be rotated and be leant with lower limit reinforced steel bar ring.
(4) Figure 13, is referred to, the casting concrete in stake holes, forms special-shaped uplift pile, the pile body of uplift pile is in stake holes
Bulb forms expansion section.
Claims (10)
1. a kind of deformed bar cage, including the tubular steel reinforcement cage that vertical muscle and stirrup by being connected with each other are formed, it is characterised in that
The deformed bar cage also includes at least one enlarged portion, and each enlarged portion includes at least three around tubular steel reinforcement cage arrangement
Umbrella muscle, umbrella muscle are in direct rod shape, and umbrella muscle one end is hinged on tubular steel reinforcement cage, and the other end is free end, and umbrella muscle can be around a jointed shaft
Line rotates, the axis of the hinge axes vertical cylindrical steel reinforcement cage, and the rotation of umbrella muscle is flat where the axis of tubular steel reinforcement cage
In face carry out, slewing area between 60-140 °, by umbrella myospasm move two extreme positions be referred to as the first setting position with
Second setting position；
When the axis and horizontal plane of tubular steel reinforcement cage, when umbrella muscle is located at the first setting position, the free end of umbrella muscle is located at should
The top of horizontal plane where the hinge axes of umbrella muscle；When umbrella muscle is located at the second setting position, the free end of umbrella muscle is located at the umbrella muscle
Hinge axes where horizontal plane lower section；
When the axis and horizontal plane of tubular steel reinforcement cage, under external force, umbrella muscle is rotated up, and reaches the first setting position
After putting and cancelling external force, umbrella influential point of tendons freely rotates down under gravity, reaches the second setting position；When umbrella muscle is positioned at the
During two setting positions, umbrella muscle is radially arranged in the surrounding of tubular steel reinforcement cage, and the free end of umbrella muscle is to away from tubular steel reinforcement cage
Direction extension；
When umbrella muscle is located at the first setting position, the deformed bar cage is free to be placed into the stake using the deformed bar cage
In hole；When umbrella muscle is located at the second setting position, the distance of the end of the free end of umbrella muscle to the central axis of tubular steel reinforcement cage
For 1.5-3.5 times of the radius of tubular steel reinforcement cage.
2. deformed bar cage according to claim 1, it is characterised in that the tubular steel reinforcement cage also includes be hinged axial rib,
It is hinged axial rib to correspond with enlarged portion, is hinged axial rib in a ring, and be connected with vertical muscle or stirrup, is hinged axial rib edge and tubular
The plane of the axis perpendicular of steel reinforcement cage is set；One end of umbrella muscle is provided with connection ring, and connection ring is enclosed on be hinged axial rib.
3. deformed bar cage according to claim 2, it is characterised in that corresponding each enlarged portion respectively sets a upper limit
Reinforced steel bar ring and a lower limit reinforced steel bar ring；Upper limit reinforced steel bar ring and lower limit reinforced steel bar ring are annular in shape, and are arranged at tubular steel
The lateral surface of muscle cage, and it is arranged in the both sides of the be hinged axial rib of corresponding same enlarged portion；When tubular steel reinforcement cage axis with
During horizontal plane, upper limit reinforced steel bar ring is located at positioned at the top of the be hinged axial rib of corresponding same enlarged portion, lower limit reinforced steel bar ring
The lower section of the be hinged axial rib of corresponding same enlarged portion；
First setting position and the axis of tubular steel reinforcement cage have angle, and the number of degrees of the angle are 5-10 °, and umbrella muscle is set positioned at first
When positioning is put, leant with the upper limit reinforced steel bar ring corresponding to it；
Second setting position and the plane of the axis perpendicular to tubular steel reinforcement cage have angle, and the number of degrees of the angle are 5-45 °, umbrella
When muscle is located at the second setting position, leant with the lower limit reinforced steel bar ring corresponding to it.
4. the deformed bar cage according to claims 1 to 3 any claim, it is characterised in that also include preventing umbrella muscle
The umbrella muscle guider to be shifted during rotation, umbrella muscle guider are fixed on tubular steel reinforcement cage.
5. deformed bar cage according to claim 1, it is characterised in that be provided with claw hook on the umbrella muscle.
6. a kind of construction method of special-shaped uplift pile, the special-shaped uplift pile includes the main body being in the form of a column, under special-shaped uplift pile
Hold as an expansion section, it is characterised in that
The construction method of the special-shaped uplift pile comprises the following steps：
(1) bar construction, is made：Prepare deformed bar cage, steel anchor pole, connector and nut；
The deformed bar cage includes the tubular steel reinforcement cage being made up of the vertical muscle and stirrup being connected with each other, and the deformed bar cage is also
Including at least one enlarged portion, each enlarged portion includes at least three umbrella muscle around tubular steel reinforcement cage arrangement, and umbrella muscle is in straight-bar
Shape, umbrella muscle one end are hinged on tubular steel reinforcement cage, and the other end is free end, and umbrella muscle can rotate around a hinge axes, described be hinged
The axis of axis vertical cylindrical steel reinforcement cage, the rotation of umbrella muscle are carried out in the plane where the axis of tubular steel reinforcement cage, rotate model
It is trapped among between 60-140 °, two extreme positions that umbrella myospasm moves is referred to as the first setting position and the second setting position；
When the axis and horizontal plane of tubular steel reinforcement cage, when umbrella muscle is located at the first setting position, the free end of umbrella muscle is located at should
The top of horizontal plane where the hinge axes of umbrella muscle；When umbrella muscle is located at the second setting position, the free end of umbrella muscle is located at the umbrella muscle
Hinge axes where horizontal plane lower section；
When the axis and horizontal plane of tubular steel reinforcement cage, under external force, umbrella muscle is rotated up, and reaches the first setting position
After putting and cancelling external force, umbrella influential point of tendons freely rotates down under gravity, reaches the second setting position；When umbrella muscle is positioned at the
During two setting positions, umbrella muscle is radially arranged in the surrounding of tubular steel reinforcement cage, and the free end of umbrella muscle is to away from tubular steel reinforcement cage
Direction extension；
When umbrella muscle is located at the first setting position, the deformed bar cage is free to be placed into the stake using the deformed bar cage
In hole；When umbrella muscle is located at the second setting position, the distance of the end of the free end of umbrella muscle to the central axis of tubular steel reinforcement cage
For 1.5-3.5 times of the radius of tubular steel reinforcement cage；
The screw thread being engaged with the screw thread of above-mentioned nut is provided with one end of steel anchor pole；
Connector is fixed on deformed bar cage, steel anchor pole is passed through connector, finally by nut driving in steel
On the screw thread of anchor pole, deformed bar cage is fixed on steel anchor pole, forms bar construction；
(2), stake holes is formed, stake holes includes positioned at the main aperture for connecting ground and is connected under main aperture to earth drilling with drilling machine
The bulb at end, bulb are used to accommodate deformed bar cage made in step (1)；
(3), the bar construction made by step (1) is transferred in stake holes, the enlarged portion of deformed bar cage is received into and expands
In portion, the umbrella muscle of enlarged portion is located at the second setting position；
Before bar construction is transferred in stake holes, all umbrella muscle are turned into the first setting position first；
(4), the casting concrete in stake holes, forms special-shaped uplift pile, and the pile body of uplift pile forms expansion section in bulb.
7. construction method according to claim 6, it is characterised in that the tubular steel reinforcement cage also includes be hinged axial rib, hinge
Spindle muscle corresponds with enlarged portion, is hinged axial rib in a ring, and is connected with vertical muscle or stirrup, is hinged axial rib edge and tubular steel
The plane of the axis perpendicular of muscle cage is set；One end of umbrella muscle is provided with connection ring, and connection ring is enclosed on be hinged axial rib.
8. construction method according to claim 7, it is characterised in that corresponding each enlarged portion respectively sets a upper limit steel
Muscle ring and a lower limit reinforced steel bar ring；Upper limit reinforced steel bar ring and lower limit reinforced steel bar ring are annular in shape, and are arranged at tubular reinforcing bar
The lateral surface of cage, and it is arranged in the both sides of the be hinged axial rib of corresponding same enlarged portion；When the axis and water of tubular steel reinforcement cage
When plane is vertical, upper limit reinforced steel bar ring positioned at the top of the be hinged axial rib of corresponding same enlarged portion, lower limit reinforced steel bar ring positioned at pair
Answer the lower section of the be hinged axial rib of same enlarged portion；
First setting position and the axis of tubular steel reinforcement cage have angle, and the number of degrees of the angle are 5-10 °, and umbrella muscle is set positioned at first
When positioning is put, leant with the upper limit reinforced steel bar ring corresponding to it；
Second setting position and the plane of the axis perpendicular to tubular steel reinforcement cage have angle, and the number of degrees of the angle are 5-45 °, umbrella
When muscle is located at the second setting position, leant with the lower limit reinforced steel bar ring corresponding to it.
9. according to the construction method described in claim 6 to 8 any claim, it is characterised in that deformed bar cage also includes
The umbrella muscle guider to be shifted when umbrella myospasm is dynamic is prevented, umbrella muscle guider is fixed on tubular steel reinforcement cage.
10. construction method according to claim 6, it is characterised in that be provided with claw hook on the umbrella muscle.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018205702A1 (en) * | 2017-05-08 | 2018-11-15 | 江苏景源万河环境科技有限公司 | Variable-diameter reinforcing cage for anchor rod or pile foundation |
| CN106760219A (en) | 2017-02-23 | 2017-05-31 | 江苏景源万河环境科技有限公司 | A kind of reducing steel reinforcement cage and its enlarging anchor rod or pile foundation |
| WO2019140883A1 (en) * | 2018-01-17 | 2019-07-25 | 中国电力科学研究院有限公司 | Bearing plate reinforcement device for squeeze and expansion cast-in-place pile |
| CN108677930A (en) * | 2018-08-07 | 2018-10-19 | 河南三建建设集团有限公司 | A kind of anti-corrosion centering structure of hole pile cages and its application |
| CN109403314B (en) * | 2018-11-26 | 2024-06-04 | 南京理工大学紫金学院 | Anti-pulling pile reinforcement cage and construction method of anti-pulling pile |
| CN112709485B (en) * | 2020-12-23 | 2022-04-05 | 包头市蒙鹿电力设备有限公司 | Telegraph pole structure for preventing uplift in high-latitude area |
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| JPH10121491A (en) * | 1996-10-23 | 1998-05-12 | Fujita Corp | Assembly engineering method for foundation beam reinforcement |
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