CN106087984A - A kind of deformed bar cage and the construction method of a kind of abnormity uplift pile - Google Patents

A kind of deformed bar cage and the construction method of a kind of abnormity uplift pile Download PDF

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Publication number
CN106087984A
CN106087984A CN201610602889.XA CN201610602889A CN106087984A CN 106087984 A CN106087984 A CN 106087984A CN 201610602889 A CN201610602889 A CN 201610602889A CN 106087984 A CN106087984 A CN 106087984A
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CN
China
Prior art keywords
muscle
umbrella
umbrella muscle
cage
steel reinforcement
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CN201610602889.XA
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CN106087984B (en
Inventor
王建兰
王涛
黄浩
金宝林
李仁民
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JIANGSU SOUTH & EAST GEOTECHNICAL ENGINEERING Co Ltd
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JIANGSU SOUTH & EAST GEOTECHNICAL ENGINEERING Co Ltd
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Priority to CN201610602889.XA priority Critical patent/CN106087984B/en
Publication of CN106087984A publication Critical patent/CN106087984A/en
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/34Concrete or concrete-like piles cast in position ; Apparatus for making same
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/10Protective 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
    • E02D31/12Protective 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

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 arranged around tubular steel reinforcement cage, and umbrella muscle can rotate between the first setting position and the second setting position;When umbrella muscle is positioned at the first setting position, this deformed bar cage is free to be placed in the stake holes using this deformed bar cage;When umbrella muscle is positioned at the second setting position, 1.5 3.5 times of the radius that distance is tubular steel reinforcement cage of the end of the free end of umbrella muscle to the central axis of tubular steel reinforcement cage.Disclosed herein as well is the construction method of a kind of special-shaped uplift pile using above-mentioned deformed bar cage, above-mentioned deformed bar cage is positioned at described expansion section.The simple in construction of this deformed bar cage, when as the bar construction of uplift pile, can with the concrete of pile body fully and uniformly in contact with, enable made uplift pile to bear bigger anti-floating power.

Description

A kind of deformed bar cage and the construction method of a kind of abnormity uplift pile
Technical field
The invention belongs to the underground construction field of building field, be specifically related to a kind of deformed bar cage and a kind of abnormity is anti- The construction method of pile pulling.
Background technology
In recent years, along with the fast development of China's economic construction, the application of underground engineering is the most increasingly extensive, Large Underground car The development and utilization of storehouse, basement, civil air defense constructions and installations, square, underground and underground traffic is increasingly common, to embedded depth of foundation requirement More and more higher.Yet with the existence of subsoil water, underground structure is produced buoyancy upwards, if buoyancy is excessive, Building base plate can be caused upwards to swell or building entirety floats, affect the normal use of building.The most conventional anti-floating Measure mainly uses uplift pile or Pulling-Resistant Anchor Rod, and uplift pile is typically cast-in-place concrete pile, and inside adds steel reinforcement cage, this law technology Maturation, reliable in quality, but this method relies primarily on pile side friction and provides anti-floating power, and general pile body is longer, required reinforcing bar and coagulation Soil material is many, and cost is high.Pulling-Resistant Anchor Rod relies on the frictional resistance between injecting cement paste and the soil body to provide anti-floating power, it is possible to provide anti-floating power is general All little, if building is suffered big to buoyancy, then required anchor pole is large number of, there may be Multi anchorage effect between anchor pole, fall The low withdrawal resistance of single anchor rod, actual building cost is even above uplift pile.
The patent application of application number 201510041358.3, discloses a kind of enlarged footing bellows anchor pole, including finish rolling screw thread Reinforcing bar, bellows expand extruding expanding body, sleeve pipe, and finish rolling deformed bar stretches into bellows and expands extruding expanding body, and it expands squeezed in bellows Internal bottom is provided with grouting material back cover, and its porch expanding extruding expanding body in bellows is provided with stop grouting plug, fining twisted steel Muscle top suit is fixed with backing plate, and finish rolling deformed bar is set with prestressing nut, and backing plate end face is fixed with has preformed hole Taper chapeau de fer and taper chapeau de fer cover the finish rolling deformed bar being set with prestressing nut.This application also discloses enlarged footing capsule The construction method of formula anchor pole, step includes: boring and pore-forming, high pressure jet grouting reaming construction, enlarged footing bellows anchor pole lay, Grout injection, benefit slurry, stretch-draw and locking in pouch.This invention increases injecting cement paste and soil by arranging bellows enlarged body in bottom Frictional resistance between body, body portion is expanded on top simultaneously still can provide certain end resistance, but the anchor pole of enlarged footing bellows shown in this application Offer pulling force can not be too high, otherwise anchor pole may be caused to extract from injecting cement paste because of bond stress deficiency between anchor pole and injecting cement paste, make Resistance to plucking system is become to lose efficacy.
The patent application of application number 98124854.3, discloses the construction method of a kind of cast-in-place concrete anchor pile, its step For: trocar sheath is squeezed in ground;Make weight along trocar sheath, repeatedly ram, form stake stomidium in the bottom of trocar sheath;By above-mentioned Hammer proposes;The steel reinforcement cage of band expandable diameter part is inserted in trocar sheath;Inner sleeve is inserted in above-mentioned steel reinforcement cage;Along inner sleeve repeatedly Carry out filler and ram action, being horn-like expansion by the expandable diameter part in above-mentioned steel reinforcement cage, forming enlarged footing in stake end;? While gradually proposing above-mentioned inner sleeve and trocar sheath, in this inner sleeve, insert concrete material, form the concrete-pile of rigidity Body.This pile body base expanding and base expanding part compacting material uses the material such as building waste or dry concrete, utilizes tamping unit by steel reinforcement cage Expand, thus higher withdrawal resistance is provided.But this pile body has the disadvantage that: 1, enlarged body is for using discrete material squeezed through hammering Forming, the noise and the vibration that produce in work progress are relatively big on surrounding enviroment impact, are not suitable in city and neighboring buildings intensive Region construction;2, steel reinforcement cage extends out shape and is difficult to be precisely controlled.Owing to the operability of this method is not strong, the use of current the method Hexyl originally stays cool.
Summary of the invention
The purpose of the application first consists in a kind of deformed bar cage of offer, and the easy construction of this deformed bar cage, technology can Leaning on, can be used for making the bar construction of uplift pile, concrete technical scheme is:
A kind of deformed bar cage, including the tubular steel reinforcement cage being made up of interconnective vertical muscle and stirrup, described abnormity Steel reinforcement cage also includes that at least one enlarged portion, each enlarged portion include at least three umbrella muscle arranged around tubular steel reinforcement cage, umbrella Muscle is 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 described hinge axes vertical cylindrical steel reinforcement cage, the rotation of umbrella muscle is entered in the plane at the axis place of tubular steel reinforcement cage OK, two extreme positions that umbrella myospasm is dynamic, between 60-140 °, are called the first setting position and set with second by slewing area Location is put;
When axis and the horizontal plane of tubular steel reinforcement cage, when umbrella muscle is positioned at the first setting position, the free end position of umbrella muscle Top in the hinge axes place horizontal plane of this umbrella muscle;When umbrella muscle is positioned at the second setting position, the free end of umbrella muscle is positioned at this The lower section of the hinge axes place horizontal plane of umbrella muscle;
When the axis of tubular steel reinforcement cage is with horizontal plane, under external force, umbrella muscle is rotated up, and arrives first and sets After location is put and cancelled external force, umbrella influential point of tendons freely rotates down under gravity, arrives the second setting position;When umbrella muscle position When the second setting position, umbrella muscle is arranged in the surrounding of tubular steel reinforcement cage radially, and the free end of umbrella muscle is to away from tubular steel The direction of muscle cage extends;
When umbrella muscle is positioned at the first setting position, this deformed bar cage is free to be placed into this deformed bar cage of use Stake holes in;When umbrella muscle is positioned at the second setting position, the central axis of the end of the free end of umbrella muscle to tubular steel reinforcement cage 1.5-3.5 times of the radius that distance is tubular steel reinforcement cage.
Further, described tubular steel reinforcement cage also includes hinged axial rib, hinged axial rib and enlarged portion one_to_one corresponding, hinged axial rib Ringwise, and being connected with vertical muscle or stirrup, hinged axial rib is arranged along the plane with the axis perpendicular of tubular steel reinforcement cage;Umbrella muscle One end be provided with connection ring, connect ring set on hinged axial rib.Tubular steel reinforcement cage arranges hinged axial rib, and at umbrella muscle One end connection ring is set, and connection ring set is located on hinged axial rib, this structure can provide and stably connect and umbrella muscle The motility rotated, it is ensured that umbrella muscle is effectively connected with tubular steel reinforcement cage.
Further, corresponding each enlarged portion respectively arranges 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 the most in the form of a ring, and are arranged at the lateral surface of tubular steel reinforcement cage, and be arranged in corresponding with The both sides of the hinged axial rib of one enlarged portion;When the axis of tubular steel reinforcement cage is with horizontal plane, it is right that upper limit reinforced steel bar ring is positioned at Answering the top of the hinged axial rib of same enlarged portion, lower limit reinforced steel bar ring is positioned at the lower section of the hinged axial rib of corresponding same enlarged portion;
First setting position has angle with the axis of tubular steel reinforcement cage, and the number of degrees of this angle are 5-10 °, and umbrella muscle is positioned at During one setting position, the upper limit reinforced steel bar ring corresponding with it leans;
Second setting position has angle with the plane of the axis being perpendicular to tubular steel reinforcement cage, and the number of degrees of this angle are 5- 45 °, when umbrella muscle is positioned at the second setting position, the lower limit reinforced steel bar ring corresponding with it leans.
When deformed bar cage is used for making uplift pile, upper limit reinforced steel bar ring can limit when umbrella muscle is rotated up more than the One setting position, to ensure that umbrella muscle can successfully rotate down under the effect of self gravitation;Lower limit reinforced steel bar ring can be by umbrella Muscle is limited in the second setting position, it is ensured that umbrella muscle and the connection effect of concrete.
Further, this deformed bar cage, there is the umbrella muscle guider of skew when also including preventing umbrella myospasm from moving, umbrella muscle is led It is fixed on tubular steel reinforcement cage to device.Umbrella muscle guider may insure that umbrella muscle can revolve according to track set in advance Turn, it is to avoid umbrella muscle, when being rotated down, produces Caton phenomenon, makes umbrella muscle can not successfully arrive the second setting position.
Further, described umbrella muscle is provided with claw hook.Claw hook can further enhance the company between umbrella muscle and concrete Connect, thus improve the intensity of the uplift pile at its place further.
The simple in construction of this deformed bar cage, its agent structure is tubular steel reinforcement cage, and tubular steel reinforcement cage uses existing one-tenth Cooking technique makes, it is not necessary to increase new process equipment, can effectively utilize existing technological facilities and be processed.Therein The main body of enlarged portion is umbrella muscle, and umbrella muscle is looped around around tubular steel reinforcement cage, when as the bar construction of uplift pile, and can be with stake The concrete of body fully and uniformly in contact with, enable made uplift pile to bear bigger anti-floating power.
After this deformed bar cage is poured and forms uplift pile in concrete, umbrella muscle place part can form one accordingly Individual expansion section, after by the buoyancy of body of groundwater, the pile body of uplift pile can by buoyancy upwards, 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 entirety is forced downwards.When umbrella muscle is positioned at the second setting position, the free end of umbrella muscle oliquely downward tilts, and works as expansion When portion's entirety is forced downwards, the stress suffered by umbrella muscle is tension, thus can make up concrete tensile strength relatively low Defect, enables expansion section to bear bigger tension.
If after deformed bar cage is poured in concrete, the free end of umbrella muscle is towards oblique upper, then suffered by umbrella muscle Stress be compressive stress, umbrella muscle can not for expansion section provide drawing-resistant function, owing to the tensile strength of concrete is relatively low, at subsoil water Under the buoyancy of body and the drag effect of the top soil body, the outwardly part of expansion section is likely cut away, and makes expansion section lose Remove uplift effect.
The application also provides for the construction method of a kind of abnormity uplift pile, and this abnormity uplift pile includes the main body in column, different The lower end of shape uplift pile is an expansion section, and for strengthening the intensity of this abnormity uplift pile, the connection of main body and expansion section can be adopted Excessive with circular arc, and the center of circle of circular arc is positioned at expansion section;
The construction method of this abnormity uplift pile comprises the steps:
(1), bar construction is made: prepare deformed bar cage, steel anchor pole, connector and nut;
This deformed bar cage includes the tubular steel reinforcement cage being made up of interconnective vertical muscle and stirrup, described deformed bar Cage also include at least one enlarged portion, each enlarged portion include at least three around tubular steel reinforcement cages arrange umbrella muscle, umbrella muscle in Direct rod shape, 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, described The axis of hinge axes vertical cylindrical steel reinforcement cage, the rotation of umbrella muscle is carried out in the plane at the axis place of tubular steel reinforcement cage, turns Two extreme positions that umbrella myospasm is dynamic, between 60-140 °, are called the first setting position and set position with second by dynamic scope Put;
When axis and the horizontal plane of tubular steel reinforcement cage, when umbrella muscle is positioned at the first setting position, the free end position of umbrella muscle Top in the hinge axes place horizontal plane of this umbrella muscle;When umbrella muscle is positioned at the second setting position, the free end of umbrella muscle is positioned at this The lower section of the hinge axes place horizontal plane of umbrella muscle;
When the axis of tubular steel reinforcement cage is with horizontal plane, under external force, umbrella muscle is rotated up, and arrives first and sets After location is put and cancelled external force, umbrella influential point of tendons freely rotates down under gravity, arrives the second setting position;When umbrella muscle position When the second setting position, umbrella muscle is arranged in the surrounding of tubular steel reinforcement cage radially, and the free end of umbrella muscle is to away from tubular steel The direction of muscle cage extends;
When umbrella muscle is positioned at the first setting position, this deformed bar cage is free to be placed into this deformed bar cage of use Stake holes in;When umbrella muscle is positioned at the second setting position, the central axis of the end of the free end of umbrella muscle to tubular steel reinforcement cage 1.5-3.5 times of the radius that distance is tubular steel reinforcement cage.
The screw thread that the screw thread with above-mentioned nut matches it is provided with in one end of steel anchor pole;Steel anchor pole can use this Body arranges threaded fining twisted steel, or uses other type of reinforcing bar secondary operations screw thread.
Connector is fixed on deformed bar cage, then makes steel anchor pole through connector, finally nut driving is existed On the screw thread of steel anchor pole, deformed bar cage is fixed on steel anchor pole, forms bar construction;
(2), with boring machine to earth drilling, forming stake holes, stake holes includes the main aperture being positioned at connection ground and is connected to main The bulb of lower end, hole, bulb is used for accommodating deformed bar cage made in step (1);
(3), the bar construction made by step (1) is transferred in stake holes, make the enlarged portion of deformed bar cage be received into In bulb, the umbrella muscle of enlarged portion rotates down arrival the second setting position;
Before being transferred in stake holes by bar construction, first all of umbrella muscle is turned to the first setting position;
(4), in stake holes casting concrete, formed abnormity uplift pile, the pile body of uplift pile forms expansion section at bulb.
Further, described tubular steel reinforcement cage also includes hinged axial rib, hinged axial rib and enlarged portion one_to_one corresponding, hinged axial rib Ringwise, and being connected with vertical muscle or stirrup, hinged axial rib is arranged along the plane with the axis perpendicular of tubular steel reinforcement cage;Umbrella muscle One end be provided with connection ring, connect ring set on hinged axial rib.Tubular steel reinforcement cage arranges hinged axial rib, and at umbrella muscle One end connection ring is set, and connection ring set is located on hinged axial rib, this structure can provide and stably connect and umbrella muscle The motility rotated, it is ensured that umbrella muscle is effectively connected with tubular steel reinforcement cage.
Further, corresponding each enlarged portion respectively arranges 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 the most in the form of a ring, and are arranged at the lateral surface of tubular steel reinforcement cage, and be arranged in corresponding with The both sides of the hinged axial rib of one enlarged portion;When the axis of tubular steel reinforcement cage is with horizontal plane, it is right that upper limit reinforced steel bar ring is positioned at Answering the top of the hinged axial rib of same enlarged portion, lower limit reinforced steel bar ring is positioned at the lower section of the hinged axial rib of corresponding same enlarged portion;
First setting position has angle with the axis of tubular steel reinforcement cage, and the number of degrees of this angle are 5-10 °, and umbrella muscle is positioned at During one setting position, the upper limit reinforced steel bar ring corresponding with it leans;
Second setting position has angle with the plane of the axis being perpendicular to tubular steel reinforcement cage, and the number of degrees of this angle are 5- 45 °, when umbrella muscle is positioned at the second setting position, the lower limit reinforced steel bar ring corresponding with it leans.
Upper limit reinforced steel bar ring can limit more than the first setting position when umbrella muscle is rotated up, to ensure that umbrella muscle is at self gravitation Effect under can successfully rotate down;Umbrella muscle can be limited in the second setting position by lower limit reinforced steel bar ring, it is ensured that umbrella muscle with The connection effect of concrete.
Further, the umbrella muscle guider of skew occurring when deformed bar cage also includes preventing umbrella myospasm from moving, umbrella muscle guides Device is fixed on tubular steel reinforcement cage.Umbrella muscle guider may insure that umbrella muscle can revolve according to track set in advance Turn, it is to avoid umbrella muscle, when being rotated down, produces Caton phenomenon, makes umbrella muscle can not successfully arrive the second setting position.
Further, described umbrella muscle is provided with claw hook.Claw hook can further enhance the connection between umbrella muscle and concrete, Thus improve the intensity of the uplift pile at its place further.
In the construction method of this abnormity uplift pile, the steel reinforcement cage used is deformed bar cage, the knot of this deformed bar cage Structure is simple, and its agent structure is tubular steel reinforcement cage, and tubular steel reinforcement cage uses current mature technology to make, it is not necessary to increase new 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, when as the bar construction of uplift pile, fully and can connect equably with the concrete of pile body Touch, enable made uplift pile to bear bigger anti-floating power.
Deformed bar cage and steel anchor pole be connected by connector and mode that nut combines is carried out, it is to avoid use weldering The mode that connects is to connect deformed bar cage and steel anchor pole, it is ensured that stablizing of steel anchor pole internal structure.Steel anchor pole uses 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 this deformed bar cage is poured and forms uplift pile in concrete, umbrella muscle place part can form one accordingly Individual expansion section, after by the buoyancy of body of groundwater, the pile body of uplift pile can by buoyancy upwards, 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 entirety is forced downwards.When umbrella muscle is positioned at the second setting position, the free end of umbrella muscle oliquely downward tilts, and works as expansion When portion's entirety is forced downwards, the stress suffered by umbrella muscle is tension, thus can make up concrete tensile strength relatively low Defect, enables expansion section to bear bigger tension.
If after deformed bar cage is poured in concrete, the free end of umbrella muscle is towards oblique upper, then suffered by umbrella muscle Stress be compressive stress, umbrella muscle can not for expansion section provide drawing-resistant function, owing to the tensile strength of concrete is relatively low, at subsoil water Under the buoyancy of body and the drag effect of the top soil body, the outwardly part of expansion section is likely cut away, and makes expansion section lose Remove uplift effect.
In the present invention, in the bar construction in abnormity uplift pile, only it is provided with deformed bar cage in expansion section, then will Steel anchor pole is connected on deformed bar cage, and steel anchor pole on the one hand can be as deformed bar cage is put into the work in stake holes With, on the other hand the tensile strength of abnormity uplift pile can be carried out a certain degree of enhancing, to make up concrete tensile strength Not enough.Part uses steel reinforcement cage, can be effectively reduced the construction cost of abnormity uplift pile, also can improve the construction of abnormity uplift pile Efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of deformed bar cage.
Fig. 2 is the partial enlarged drawing of H part 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 the top view of Fig. 1, exemplarily only shows stirrup, vertical muscle, hinged axial rib and umbrella muscle 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 abnormity uplift pile construction, form the schematic diagram after stake holes.
When Figure 11 is abnormity uplift pile construction, bar construction is put into the schematic diagram of stake holes.
When Figure 12 is abnormity uplift pile construction, after the deformed bar cage on bar construction drops into the bulb in stake holes Schematic diagram.
When Figure 13 is abnormity uplift pile construction, complete concrete cast, form the schematic diagram after abnormity uplift pile.
Detailed description of the invention
Hereinafter deformed bar cage and abnormity uplift pile are combined, the application is described in further detail.
Referring to Figure 13, abnormity uplift pile 100, this abnormity uplift pile 100 includes the main body 101 in column, in main body 101 Lower end connect and have an expansion section 102, main body 101 and expansion section 102 use circular arc excessive, and the center of circle of circular arc is positioned at expansion section In, this abnormity uplift pile 100 be internally provided with bar construction 200.The Specific construction step of this abnormity 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 uses spiral for prestressed concrete to make, and this is different Shape steel reinforcement cage includes the tubular steel reinforcement cage being made up of interconnective vertical muscle 11 and stirrup 12, and stirrup 12 in the shape of a spiral, indulges muscle 11 lateral surface being welded on stirrup 12.Use spiral for prestressed concrete to make deformed bar cage and can make full use of biography The processing equipment of system, and ensure that deformed bar cage and the combination of concrete and the intensity of special-shaped uplift pile.
Described deformed bar cage also includes that at least one enlarged portion, each enlarged portion include at least three around tubular reinforcing bar The umbrella muscle that cage is arranged, umbrella muscle is 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 rotates, the axis of described hinge axes vertical cylindrical steel reinforcement cage, and the rotation of umbrella muscle is at the axis of tubular steel reinforcement cage Carrying out in the plane at place, two extreme positions that umbrella myospasm is dynamic, between 60-140 °, are called first and set by slewing area Location is put and the second setting position.
When axis and the horizontal plane of tubular steel reinforcement cage, when umbrella muscle is positioned at the first setting position, the free end position of umbrella muscle Top in the hinge axes place horizontal plane of this umbrella muscle;When umbrella muscle is positioned at the second setting position, the free end of umbrella muscle is positioned at this The lower section of the hinge axes place horizontal plane of umbrella muscle.
When the axis of tubular steel reinforcement cage is with horizontal plane, under external force, umbrella muscle is rotated up, and arrives first and sets After location is put and cancelled external force, umbrella influential point of tendons freely rotates down under gravity, arrives the second setting position;When umbrella muscle position When the second setting position, umbrella muscle is arranged in the surrounding of tubular steel reinforcement cage radially, and the free end of umbrella muscle is to away from tubular steel The direction of muscle cage extends;When umbrella muscle is positioned at the first setting position, this deformed bar cage is free to be placed into use, and this is different In the stake holes of shape steel reinforcement cage;When umbrella muscle is positioned at the second setting position, in the end of the free end of umbrella muscle to 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 portion in the present embodiment, and each enlarged portion includes three umbrella muscle 13, at tubular Being welded with hinged axial rib 21 on the lateral surface of the vertical muscle 11 of steel reinforcement cage, hinged axial rib has five, and five enlarged portion one_to_one corresponding, Hinged axial rib 21 in the form of a ring, is arranged along the plane perpendicular with the axis 31 of tubular steel reinforcement cage;One end of umbrella muscle 13 is provided with even T-Ring 131, connects ring 131 and is enclosed within hinged axial rib 21, and the other end of umbrella muscle is free end 132.It is appreciated that hinged axial rib also The inner side of vertical muscle can be welded on, or be welded on stirrup.
In the present embodiment, umbrella muscle is enclosed within hinged axial rib 21 by connecting ring 131, the centrage place of hinged axial rib 21 Plane become when corresponding umbrella myospasm moves around hinge axes place plane.When the axis 31 of this deformed bar cage hangs down with horizontal plane Time straight, i.e. deformed bar cage is vertically arranged, and when umbrella muscle is positioned at the first setting position, the free end 132 of umbrella muscle is positioned at and is connected The top of the centrage place plane of hinged axial rib, when umbrella muscle is positioned at the second setting position, the free end 132 of umbrella muscle is positioned at and is connected The lower section of the centrage place plane of the hinged axial rib connect.
Refer to Fig. 1, only as a example by umbrella muscle 140, the hinged of the first setting position, the second setting position and umbrella muscle is described Relation between the horizontal plane three of axis place, in FIG, labelling 141 indication plane is the hinge axes place level of umbrella muscle Face, the plane at the centrage place of the hinged axial rib that this plane reality is also connected by umbrella muscle 140, labelling 142 pointed location is First setting position of umbrella muscle 140, labelling 143 pointed location is 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 positioned at the first setting position, this deformed bar cage is free to be placed on stake described below In hole.When umbrella muscle is positioned at the second setting position, in the present embodiment, in the end of the free end 132 of umbrella muscle to tubular steel reinforcement cage Distance L of mandrel line 31 is 2.5-3 times of the radius R of tubular steel reinforcement cage.Left part in FIG, 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 arrange an enlarged portion, or according to concrete requirement, at least provided with two Individual, three, four or five enlarged portion, the most multiple enlarged portion;Each enlarged portion according to practical situation can also arrange to Few four, five, the six roots of sensation or seven umbrella muscle, the most umbrella muscle.
Tubular steel reinforcement cage is additionally provided with the upper limit reinforced steel bar ring 22 for limiting umbrella muscle 13 slewing area and lower limit Reinforced steel bar ring 23, corresponding each enlarged portion respectively arranges a upper limit reinforced steel bar ring and a lower limit reinforced steel bar ring, and is arranged in The both sides of the hinged axial rib of corresponding same enlarged portion;When the axis of tubular steel reinforcement cage is with horizontal plane, upper limit reinforced steel bar ring Being positioned at the top of the hinged axial rib of corresponding same enlarged portion, lower limit reinforced steel bar ring is positioned at the hinged axial rib of corresponding same enlarged portion Lower section;Upper limit reinforced steel bar ring in the present embodiment and lower limit reinforced steel bar ring the most in the form of a ring, and are all welded on the lateral surface of vertical muscle.
The axis 31 of the first setting position and tubular steel reinforcement cage has angle α, and the number of degrees of this angle α are 5-10 °, umbrella muscle 13 When being positioned at the first setting position, the upper limit reinforced steel bar ring 22 corresponding with it leans;
The plane 33 of the second setting position and the axis 31 being perpendicular to tubular steel reinforcement cage has angle β, the number of degrees of this angle β For 5-45 °, when umbrella muscle is positioned at the second setting position, the lower limit reinforced steel bar ring corresponding with it leans.
In the present embodiment, upper limit reinforced steel bar ring 22 and lower limit reinforced steel bar ring 23 are all welded on vertical muscle 11, the degree of angle α Number is for 5-8 °, and the number of degrees of angle β are 40-45 °.
Being appreciated that above-mentioned angle α can be configured according to different requirements from angle β, the number of degrees of such as angle α are also Can be arranged between 8-10 °, the number of degrees of angle β can be arranged on 5-10 °, 10-20 °, 20-30 °, between 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 this hinged axial rib is positioned at the outside of tubular steel reinforcement cage, this hinged axial rib can play position-limiting action.
The umbrella muscle guider of skew occurs when deformed bar cage also includes preventing umbrella myospasm from moving, 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, both sides that left and right that two pieces of guide plates are separately positioned on umbrella muscle 13 is relative are also welded on hinged axial rib 21, every umbrella muscle Both sides one piece of guide plate 25 is respectively set, under the restriction of guide plate, umbrella muscle rotates according to default track.Can manage Solving, guide plate can be directly anchored on tubular steel reinforcement cage by being welded on hinged axial rib, it is also possible to is indirectly fixed to tubular On steel reinforcement cage, such as, can be indirectly fixed to tubular reinforcing bar by being welded on upper limit reinforced steel bar ring or lower limit reinforced steel bar ring On cage.
Guide plate can arrange one piece in the both sides of every umbrella muscle, when neighbouring umbrella muscle arranges in the vertical direction When becoming a straight line parallel with the axis of tubular steel reinforcement cage, neighbouring guide plate can connect integral, conveniently add Work and installation.
Referring to Fig. 4, guide plate can substitute with guide post 26, and the both sides of every umbrella muscle arrange a guide post 26, Guide post is circular arc, and the two ends of guide post are separately fixed on upper limit reinforced steel bar ring and lower limit reinforced steel bar ring.It is appreciated that and leads Rectangle or analogous shape can be bent into bar.Guide post can also be fixed on the hinged axial rib of tubular steel reinforcement cage, vertical muscle Or on stirrup.Guide post can also be designed to direct rod shape, and the one end being directed to bar is fixed on tubular steel reinforcement cage.
Umbrella muscle is provided with claw hook, 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 is arranged on the free end of umbrella muscle 13.It is appreciated that claw hook is all right Being designed to other shape, refer to Fig. 6, claw hook 272 is corynebacterium, and perpendicular with reinforcement;Refer 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 improving and the bonding strength of concrete, the shape of claw hook also can be according to concrete requirement design For other shape.
After deformed bar cage completes, start installation connecting element, steel anchor rod and nut, in an embodiment, steel Anchor pole uses fining twisted steel to make, and fining twisted steel can directly directly coordinate with the nut of respective model, it is not necessary to secondary adds Work screw thread.Connector includes upper connector 18 and lower connector 16, all uses steel plate to make.
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, then by steel anchor pole 14 through upper connector and lower connector, and exist nut driving 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 arranged on the upper and lower of 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 use other one end to arrange threaded screw-thread steel or hot calendering round bar comes Making, screw thread can make or later-stage secondary processing in advance.Connector can be fixed to use bolt or fix in the way of colligation On deformed bar cage.
(2), referring to Figure 10, with boring machine to earth drilling, form stake holes, stake holes includes main aperture 41 He connecting ground It is connected to the bulb 42 of main aperture 41 lower end, between main aperture 41 and bulb 42, uses arc section 43 transition, the circle of arc section 43 The heart is positioned at bulb 42.Bulb 42 is used for accommodating deformed bar cage made in step (1).
(3), refer to Figure 11 and Figure 12, transfer to, in stake holes, make deformed bar by the bar construction made by step (1) The enlarged portion of cage is received in bulb, and the umbrella muscle of enlarged portion is positioned at the second setting position.
Before bar construction is transferred in stake holes, first all of umbrella muscle is rotated up, make umbrella muscle and upper limit steel Muscle ring leans, and is then put in stake holes by bar construction, 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 arrive bulb, umbrella muscle under gravity to Lower rotation is also 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 tied due to reinforcing bar Rocking of structure, and make umbrella muscle be rotated up more than the first setting position, forms dead point, causes deformed bar cage to expand dropping to Behind portion, umbrella muscle cannot carry out rotating and leaning with lower limit reinforced steel bar ring under gravity.
(4), Figure 13 is referred to, casting concrete in stake holes, form abnormity uplift pile, the pile body of uplift pile is in stake holes Bulb forms expansion section.

Claims (10)

1. a deformed bar cage, including the tubular steel reinforcement cage being made up of interconnective vertical muscle and stirrup, it is characterised in that Described deformed bar cage also includes that at least one enlarged portion, each enlarged portion include at least three around tubular steel reinforcement cage layout Umbrella muscle, umbrella muscle is 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 described hinge axes vertical cylindrical steel reinforcement cage, rotation the putting down at the axis place of tubular steel reinforcement cage of umbrella muscle Carry out in face, slewing area between 60-140 °, two dynamic for umbrella myospasm extreme positions are called the first setting position with Second setting position;
When axis and the horizontal plane of tubular steel reinforcement cage, when umbrella muscle is positioned at the first setting position, the free end of umbrella muscle is positioned at this The top of the hinge axes place horizontal plane of umbrella muscle;When umbrella muscle is positioned at the second setting position, the free end of umbrella muscle is positioned at this umbrella muscle The lower section of hinge axes place horizontal plane;
When the axis of tubular steel reinforcement cage is with horizontal plane, under external force, umbrella muscle is rotated up, and arrives the first setting position After putting and cancelling external force, umbrella influential point of tendons freely rotates down under gravity, arrives the second setting position;When umbrella muscle is positioned at During two setting positions, umbrella muscle is arranged in the surrounding of tubular steel reinforcement cage radially, and the free end of umbrella muscle is to away from tubular steel reinforcement cage Direction extend;
When umbrella muscle is positioned at the first setting position, this deformed bar cage is free to be placed into the stake using this deformed bar cage In hole;When umbrella muscle is positioned at the second setting position, the end of the free end of umbrella muscle is to the distance of the central axis of tubular steel reinforcement cage For the radius of tubular steel reinforcement cage 1.5-3.5 times.
Deformed bar cage the most according to claim 1, it is characterised in that described tubular steel reinforcement cage also includes hinged axial rib, Hinged axial rib and enlarged portion one_to_one corresponding, hinged axial rib ringwise, and is connected with vertical muscle or stirrup, hinged axial rib edge and tubular The plane of the axis perpendicular of steel reinforcement cage is arranged;One end of umbrella muscle is provided with connection ring, connects ring set on hinged axial rib.
Deformed bar cage the most according to claim 2, it is characterised in that corresponding each enlarged portion respectively arranges 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 the most in the form of a ring, and are arranged at tubular steel The lateral surface of muscle cage, and it is arranged in the both sides of the 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 positioned at the top of the hinged axial rib of corresponding same enlarged portion, and lower limit reinforced steel bar ring is positioned at The lower section of the hinged axial rib of corresponding same enlarged portion;
First setting position has angle with the axis of tubular steel reinforcement cage, and the number of degrees of this angle are 5-10 °, and umbrella muscle is positioned at first and sets When location is put, the upper limit reinforced steel bar ring corresponding with it leans;
Second setting position has angle with the plane of the axis being perpendicular to tubular steel reinforcement cage, and the number of degrees of this angle are 5-45 °, umbrella When muscle is positioned at the second setting position, the lower limit reinforced steel bar ring corresponding with it leans.
4. according to the deformed bar cage described in claims 1 to 3 any claim, it is characterised in that also include preventing umbrella muscle The umbrella muscle guider of skew occurs during rotation, and umbrella muscle guider is fixed on tubular steel reinforcement cage.
Deformed bar cage the most according to claim 1, it is characterised in that be provided with claw hook on described umbrella muscle.
6. a construction method for special-shaped uplift pile, the uplift pile of described abnormity includes the main body in column, under abnormity uplift pile End is an expansion section, it is characterised in that
The construction method of described abnormity uplift pile comprises the steps:
(1), bar construction is made: prepare deformed bar cage, steel anchor pole, connector and nut;
This deformed bar cage includes the tubular steel reinforcement cage being made up of interconnective vertical muscle and stirrup, and described deformed bar cage is also Including at least one enlarged portion, each enlarged portion includes at least three umbrella muscle arranged around tubular steel reinforcement cage, and umbrella muscle is straight-bar Shape, 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, described hinged The axis of axis vertical cylindrical steel reinforcement cage, the rotation of umbrella muscle is carried out in the plane at the axis place of tubular steel reinforcement cage, rotates model It is trapped among between 60-140 °, two extreme positions that umbrella myospasm is dynamic are called the first setting position and the second setting position;
When axis and the horizontal plane of tubular steel reinforcement cage, when umbrella muscle is positioned at the first setting position, the free end of umbrella muscle is positioned at this The top of the hinge axes place horizontal plane of umbrella muscle;When umbrella muscle is positioned at the second setting position, the free end of umbrella muscle is positioned at this umbrella muscle The lower section of hinge axes place horizontal plane;
When the axis of tubular steel reinforcement cage is with horizontal plane, under external force, umbrella muscle is rotated up, and arrives the first setting position After putting and cancelling external force, umbrella influential point of tendons freely rotates down under gravity, arrives the second setting position;When umbrella muscle is positioned at During two setting positions, umbrella muscle is arranged in the surrounding of tubular steel reinforcement cage radially, and the free end of umbrella muscle is to away from tubular steel reinforcement cage Direction extend;
When umbrella muscle is positioned at the first setting position, this deformed bar cage is free to be placed into the stake using this deformed bar cage In hole;When umbrella muscle is positioned at the second setting position, the end of the free end of umbrella muscle is to the distance of the central axis of tubular steel reinforcement cage For the radius of tubular steel reinforcement cage 1.5-3.5 times;
The screw thread that the screw thread with above-mentioned nut matches it is provided with in one end of steel anchor pole;
Connector is fixed on deformed bar cage, then makes steel anchor pole pass connector, finally by nut driving at steel On the screw thread of anchor pole, deformed bar cage is fixed on steel anchor pole, forms bar construction;
(2), with boring machine to earth drilling, forming stake holes, stake holes includes being positioned at the main aperture on connection ground and being connected under main aperture The bulb of end, bulb is used for accommodating deformed bar cage made in step (1);
(3), the bar construction made by step (1) is transferred in stake holes, make the enlarged portion of deformed bar cage be received into and expand In portion, the umbrella muscle of enlarged portion is positioned at the second setting position;
Before being transferred in stake holes by bar construction, first all of umbrella muscle is turned to the first setting position;
(4), in stake holes casting concrete, formed abnormity uplift pile, the pile body of uplift pile forms expansion section at bulb.
Construction method the most according to claim 6, it is characterised in that described tubular steel reinforcement cage also includes hinged axial rib, hinge Spindle muscle and enlarged portion one_to_one corresponding, hinged axial rib ringwise, and is connected with vertical muscle or stirrup, hinged axial rib edge and tubular steel The plane of the axis perpendicular of muscle cage is arranged;One end of umbrella muscle is provided with connection ring, connects ring set on hinged axial rib.
Construction method the most according to claim 7, it is characterised in that corresponding each enlarged portion respectively arranges 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 the most in the form of a ring, and are arranged at tubular reinforcing bar The lateral surface of cage, and it is arranged in the both sides of the hinged axial rib of corresponding same enlarged portion;Axis and water when tubular steel reinforcement cage When plane is vertical, upper limit reinforced steel bar ring is positioned at the top of the hinged axial rib of corresponding same enlarged portion, and it is right that lower limit reinforced steel bar ring is positioned at Answer the lower section of the hinged axial rib of same enlarged portion;
First setting position has angle with the axis of tubular steel reinforcement cage, and the number of degrees of this angle are 5-10 °, and umbrella muscle is positioned at first and sets When location is put, the upper limit reinforced steel bar ring corresponding with it leans;
Second setting position has angle with the plane of the axis being perpendicular to tubular steel reinforcement cage, and the number of degrees of this angle are 5-45 °, umbrella When muscle is positioned at the second setting position, the lower limit reinforced steel bar ring corresponding with it leans.
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 of skew occurs when preventing umbrella myospasm from moving, and umbrella muscle guider is fixed on tubular steel reinforcement cage.
Construction method the most according to claim 6, it is characterised in that be provided with claw hook on described umbrella muscle.
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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
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
US11008724B2 (en) 2017-02-23 2021-05-18 Jiangsu Green River Environmental Technology Co., Ltd. Variable-diameter reinforcing cage for anchor rod or pile foundation
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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Publication number Priority date Publication date Assignee Title
US11008724B2 (en) 2017-02-23 2021-05-18 Jiangsu Green River Environmental Technology Co., Ltd. Variable-diameter reinforcing cage for anchor rod or pile foundation
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
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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
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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