CN206736901U - A kind of anchor pole or pile foundation variable diameters steel reinforcement cage - Google Patents

A kind of anchor pole or pile foundation variable diameters steel reinforcement cage Download PDF

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Publication number
CN206736901U
CN206736901U CN201720499445.8U CN201720499445U CN206736901U CN 206736901 U CN206736901 U CN 206736901U CN 201720499445 U CN201720499445 U CN 201720499445U CN 206736901 U CN206736901 U CN 206736901U
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vertical bars
ring
rib
stirrup
round
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王林
陶刚
王军
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Jiangsu Jingyuan Million River Environmental Science And Technology Co Ltd
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Jiangsu Jingyuan Million River Environmental Science And Technology Co Ltd
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Abstract

Anchor pole or pile foundation variable diameters steel reinforcement cage, including axial stem, some vertical bars, at least two round fixators and some group ribs corresponding with round fixator, the round fixator is enclosed on axial stem or pile foundation bar, each round fixator each active fixes one group and some vertical bars number identical ribs around enclosing, in every group of rib, the active mutually level position for connecing vertical bars in one end of rib, the other end of rib is active to be connected to round fixator, the every group of active connection of rib with least two round fixators respectively of the different height of i.e. every vertical bars, some vertical bars are around axial stem;Vertical bars periphery is provided with parallel of the ring-type stirrup as periphery, ring-type stirrup and is provided with fixing point with vertical bars, and ring-type stirrup is the garter spring stirrup or flexible steel wire of elastic material;It is unused state that ring-type stirrup, which is tightened up, and the end of helical spring ring-type stirrup is provided with ring-type stirrup release device;With during flexible steel wire provided with the release device for strutting vertical bars and rib.

Description

A kind of anchor pole or pile foundation variable diameters steel reinforcement cage
First, technical field
The utility model is related to a kind of anchor pole or pile foundation variable diameters (being also known as reducing below) steel reinforcement cage, especially anchor pole or Skeleton in pile foundation --- reducing steel reinforcement cage and its enlarging anchor rod or pile foundation, it is mainly used in building basement anti-floating pattern foundation pit supporting structure, Slope retaining, geological hazard control, and the technology category such as reinforcing, are also used for resistance to compression pile foundation.Provided by the utility model is anti- Pull out force/compressive resistance is larger, the reducing reinforcement cage skeleton in anchor pole stable and reliable for performance or pile foundation.
2nd, background technology
Anchor pole must possess several key elements:One tensile strength is higher than the body of rod of Rock And Soil, body of rod one end can and ground Body is in close contact to form friction (or bonding) resistance;The other end that anchor rod body is located at outside Rock And Soil can be formed to Rock And Soil Radial resistant force;Anchor pole is connected as the tensional element for going deep into stratum, its one end with engineering structure, and the other end gos deep into stratum In, whole anchor pole is divided into free segment and anchoring section, and free segment refers to the region that the pulling force at anchor pole head is reached to anchoring body, its work( Can be that prestressing force is applied to anchor pole;Anchoring section refers to the area that cement slurry or concrete anchor solid bond presstressed reinforcing steel and soil layer Domain, its function are that the bonding rubbing action increase of anchoring body and soil layer is increased to the pressure-bearing or drawing-resistant function of anchoring body, will freely The pulling force of section reaches soil body depths.
In general, anchor pole is the member system structure that Rock And Soil is reinforced.Acted on by the longitudinal pulling force of anchor rod body, gram Take the shortcomings that Rock And Soil tensile capacity is well below anti-pressure ability.It is the adhesive aggregation for mainly improving country rock body from mechanics viewpoint Power C and internalfrictionangleφ.Its substantive upper bolt is located in Rock And Soil forms a new complex with Rock And Soil.This complex In anchor pole be the low key of tensile capacity for solving country rock body.So that the bearing capacity of Rock And Soil itself greatly reinforces.
Anchor pole is the most basic part of roadway support among the mine of contemporary underground mining, by the country rock beam in tunnel It is tied together, makes country rock itself supporting itself;Present anchor pole is applied not only to mine, is also used in architectural engineering technology, to underground The carry out active reinforcing such as room, side slope, tunnel, dam body.
The basic model of anchor pole is:Reinforcing bar or arope creep bar.Anchor pole and the binding agent of country rock are used as using cement mortar. Also include reverse wedge formula anchor metal.Pipe-seam type anchor rod.Resin anchor.It is higher as the binding agent of anchor pole, cost by the use of resin.
A kind of new spiral anchoring-bolt → spin anchor pole of Xi'an Technology University Hui Xing fields utility model.Spin anchor pole bag Include following species:Self tapping extruding precession anchor pole → directly extrude precession installation anchor force 20KN/m without drilling in soil layer;From The rotation installation of grouted anchor bar → in the borehole using the bolt grouting that spins just turns into the spin grouted anchor bar with first anchor-hold after terminating; Resin explosive roll stirring is turned into the spin tree with first anchor-hold by the anchor pole that spinned while resin anchor → in the borehole is installed of spinning Fat anchor pole;From bore from anchoring rod → spin anchor pole it is hollow in be put into drilling rod make jewel hole installation once complete be that there is first anchor-hold Self drilling anchor;Spin whitewashing anchor pole → in soil layer creep into installation anchor note once completion anchor force 35KN/m in whitewashing;
Conventional enlarging anchor rod technology is always or usually as specified slurry, bellows enlarging anchor rod technology etc. in the market.In the construction of cost The counter-boring techniques of aspect, reducing concentric reducer anchor pole or pile foundation have had basis, and slip casting or the injection of concrete independently form size Head, but not and adaptable framework of steel reinforcement, it is impossible to the anchor pole or pile foundation of pulling force or drag transmission formed with enough frictional force, especially It is that the anchor force of anchor pole is restricted.For building basement anti-floating pattern foundation pit supporting structure, slope retaining, and the technology such as reinforcing Anchor force is insufficient during field.Because they need withdrawal resistance larger, and require reliable and stable.
Further, in the foundation of skyscraper frequently be non-changing diameter of fundamental piles, but meet same intensity and Under conditions of deformation requirements, for changing diameter of fundamental piles compared with non-changing diameter of fundamental piles, changing diameter of fundamental piles mainly has following characteristics:1) with long The changing diameter of fundamental piles of degree is compared with non-changing diameter of fundamental piles, and intensity can typically improve 1.1 times~1.5 times, deformation can reduce 0.7 times~ 0.9 times.
2) under the conditions of the first feature, the intensity and deformation requirements of building are met, it is long substantially to shorten stake.
3) in the case where ensureing stake intensity and deformation, it is long to shorten stake, reduces workload, improves execution conditions, reaches Labor and material saving is time saving.
In some argillic horizons, soft layer, boulder bed, sandy gravel stratum or weathered rock formation, due to these stratum intensity often Less than the intensity of concrete, the bearing capacity for being unfavorable for concrete foundation pile pile body plays.Therefore, in order to give full play to concrete Strength characteristics, there is the paper in terms of architectural engineering to propose to improve the bearing capacity of stake using changing diameter of fundamental piles, technically Clearly reasonable.
The strength and deformation of changing diameter of fundamental piles is calculated as the computational methods of non-changing diameter of fundamental piles.Foundation pile divide end-bearing pile and Friction pile, the strength and deformation of the two calculate difference, are calculated and compared by object of friction pile.The intensity of friction pile is typically by stake Side friction and bearing course at pile end intensity composition, for friction pile, pile perimeter resistance is main, but for big portion Point foundation pile particularly large diameter pile, stake end are supported on basement rock, and the supporting force at stake end is main, therefore the pole of bearing course at pile end Limit Strength co-mputation just seems extremely important, because the value that the different method of the Strength co-mputation of bearing course at pile end is drawn differs greatly. The intensity of foundation pile supporting course is not only relevant and relevant with the buried depth of pile foundation and size with the nature of rock, soil.It can be seen that change Footpath foundation pile is upper very promising in application, and still, how obtaining feasible changing diameter of fundamental piles and being one needs to solve the problems, such as.
3rd, utility model content
The purpose of the utility model is to propose a kind of reducing steel reinforcement cage and its enlarging anchor rod or pile foundation and preparation, applied to institute There are the anti-enlarging anchor rod dialled of tension and resistance to compression pile foundation, overcome anchoring or pile foundation bearing capacity and the globality poor of plain slurry enlarged footing Deficiency, applied to form with standard framework of steel reinforcement enlarging anchor rod or pile foundation, the anchor pole optimal for the ratio of performance to price or Pile foundation.
The technical solution of the utility model is:Anchor pole or pile foundation variable diameters steel reinforcement cage, its core feature are steel reinforcement cages Diameter is variable;Including axial stem, annulus or ring flat-plate and some vertical bars and some ribs, round fixator, annulus or ring flat-plate and axle Vertical to bar, one end of some vertical bars is uniformly fixed in annulus or ring flat-plate, and the other end of every vertical bars or middle part are all connected with one One end of rib, the another of rib terminate to round fixator, and round fixator is slided in axial stem or fixed, some vertical bars Around axial stem, vertical bars periphery is provided with parallel of the ring-type stirrup as periphery, ring-type stirrup and is provided with fixing point with vertical bars;Ring-type It is unused state that stirrup, which is tightened up, and ring-type stirrup is helical spring or flexible steel wire;The end of helical spring ring-type stirrup is provided with Release device, the release devices of rib vertical bars is strutted with being provided with during flexible steel wire in round fixator.
Second of anchor pole or pile foundation variable diameters steel reinforcement cage, including axial stem, some vertical bars, at least two round fixators Some group ribs corresponding with round fixator, the round fixator are enclosed on axial stem or pile foundation bar, described every Individual round fixator around enclose it is each it is active fix one group and some vertical bars number identical ribs, in every group of rib, the one of rib The active mutually level position for connecing vertical bars is held, the other end of rib is active to be connected to round fixator, i.e., the difference of every vertical bars Height every group of active connection of rib with least two round fixators respectively, some vertical bars are around axial stem;
Vertical bars periphery is provided with parallel of the ring-type stirrup as periphery, ring-type stirrup and is provided with fixing point, annular collar with vertical bars Muscle is the garter spring stirrup or flexible steel wire of elastic material;It is unused state that ring-type stirrup, which is tightened up, helical spring ring The end of shape stirrup is provided with ring-type stirrup release device;With during flexible steel wire provided with the release device for strutting rib and vertical bars.
Described anchor pole or pile foundation variable diameters steel reinforcement cage, at least one round fixator are sliding in axial stem or pile foundation bar It is dynamic, slide round fixator and positioner is provided with axial stem or pile foundation bar.
Described anchor pole or pile foundation variable diameters steel reinforcement cage, the release device for strutting vertical bars are external force release, gravity release Or the end release device of the helical spring ring-type stirrup;End release device is that ring-type stirrup end is prepared into pivot pin or axle The structure in hole, a fixing hole is inserted when helical spring stirrup end is pivot pin, when helical spring stirrup end is axis hole then The another end for thering is bearing pin to fix stirrup.
The typical structure of external force release:Similar Fig. 4-1 (is directly beaten or vibrated when variable diameters steel reinforcement cage has arrived position Rib, or this circle rib top have individual lasso to be hit, and lasso struts the rib of two similar Fig. 4-1 bottoms in motion), under The rib in portion strut after using the gravity of vertical bars in itself make steel reinforcement cage strut without withdraw.
Described anchor pole or pile foundation variable diameters steel reinforcement cage, when the parallel of periphery is flexible steel wire, struts rib vertical bars Release device is to strut the device of umbrella frame;Flexible steel wire includes steel hinge line, steel cable, and chain structure or the stronger wire rod of tension are (such as Carbon fiber, graphene and related carbon rope).
Described anchor pole or pile foundation variable diameters steel reinforcement cage, helical spring ring-type stirrup is will in the position of the inner ring of vertical bars Vertical bars strut;When helical spring ring-type stirrup and parallel are flexible steel wire, spring ring-type stirrup has with flexible steel wire with vertical bars Fixing point, fixing point are the snares for having certain space.
Described anchor pole or pile foundation variable diameters steel reinforcement cage, rib and the mode of the active connection of vertical bars:Round fixator point Rib is not connected to by vertical bars by bearing pin 3-1, bearing pin support (U-shaped fixed support) 3-2;The radical of vertical bars rib is more than 3. 6-8 roots are common.Can also more to 12 or more.
Vertical bars are straight line or bending, can form the pile foundation or anchor structure of various profiles.
Described anchor pole or pile foundation variable diameters steel reinforcement cage, in the longer steel reinforcement cage of length, there can be more than 2 rounds to consolidate Determine device to be uniformly distributed on axle, have at least one/but be not limited to one, round fixator slided in axial stem, and can be limited The stop of round fixator sliding distance processed.
Release device of the round fixator provided with the vertical bars for strutting rib is being slided when the parallel of periphery is flexible steel wire;Support The vertical bars release device for opening rib is to strut spring (spring-like) device for being enclosed on axial stem of round fixator by minimum one The round fixator only slided struts.
When the ring-type stirrup of periphery is helical spring or flexible steel wire parallel, the spring for being enclosed on axial stem, spring are equipped with Round fixator is locked in the state of having compression or elongation stress or has stop, and after locking or stop opening, spring should Power driving round fixator slides in axial stem drives rib to stretch out, and makes vertical bars abduction.
When round fixator is the structure for being fixed on axial stem, round fixator is integrated with axial stem, this When the round fixator of periphery perforate can be directly welded in axial stem and (round can also be processed in axial stem to fix Device).
Described anchor pole or pile foundation variable diameters steel reinforcement cage, according to the requirement of concrete engineering, according to the utility model Variable diameters principle, the variable-diameter steel reinforcement cages of a variety of three-dimensional shape features can also be formed, including/but be not limited to cylinder, Polygon (circle internal tangent) cylinder, round estrade, cone (containing cone and polygonal pyramid), trapezoid cylinder, spherical, laemodipodiform post Body etc.;The utility model can require according to the performance of concrete engineering, according to variable diameters principle of the present utility model, to super The pile foundation variable diameters steel reinforcement cage of major diameter, double-deck/or variable-diameter reinforcing bar for being characterized of multilayer (cage is covered in cage) can also be formed Cage.
Vertical bars periphery is provided with ring-type stirrup, ring-type stirrup and is provided with fixing point with vertical bars, and is the looping snail of elastic material Revolve spring stirrup or flexible steel wire;It is unused state that ring-type stirrup, which is tightened up, and the end of helical spring ring-type stirrup is provided with release Device;The release device for the vertical bars for strutting rib is provided with during flexible steel wire in round fixator.
When the ring-type stirrup of periphery is helical spring or flexible steel wire parallel, the release device for strutting rib vertical bars has support (similar) device of parachute-opening bone.
When helical spring ring-type stirrup and parallel are flexible steel wire, spring ring-type stirrup has solid with flexible steel wire with vertical bars Fixed point, simplest fixing point is the binder structure (wire-tiing) of steel wire.Fixing point can be the snare for having certain space, just Spring ring-type stirrup when release has certain displacement with flexible steel wire at vertical bars.
The first reducing steel reinforcement cage release of the present utility model opens an umbrella, and shape (but if annulus or ring flat-plate diameter are big, also may be used by Fig. 1 To be in the form of a column), axial stem, annulus or ring flat-plate and some vertical bars (umbrella cover bone), similar umbrella frame (support bone) shape structure of rib, but circle Ring or ring flat-plate substitution umbrella point, the stirrup elasticity of ring-spring wale the action to be closed one's umbrella with release structure with parachute-opening, and vertical bars can To be if the straight-bar of umbrella frame, rib is the support rods of umbrella frame, rib distinguishes active adapter ring shape fixator and vertical bars.Second of reducing Steel reinforcement cage is (circle) column, is that a pair of round fixator opening structure (can also be opened in axial stem provided with three or more Umbrella structure, i.e., some vertical bars, some ribs and one are slided or fixed round fixator is formed, for major diameter (100cm or so) Steel reinforcement cage can be double-deck basket structure, a pair of round fixator opening structures discharge the interior cage of double-deck cage, and second pair of round is fixed Device opening structure discharges the outer cage of double-deck cage, shows slightly redundancy, this scheme is without departing from the scope of the utility model), more rationally, But prepare slightly complicated.
Further, the first reducing steel reinforcement cage:The diameter of annulus or ring flat-plate is suitable with drilling or is slightly less than bore diameter; Rib can be straight line or bending.Annulus or ring flat-plate can be drilled the replacement of shape guider.
If provided, with thering is a round fixator to be slided in axial stem at least, and can restricted sliding distance stop, Another round fixator is fixed in axial stem.Two round fixators can be provided with two limitations when being slided in axial stem and slide The stop of dynamic distance.Also stop (being provided with the fastening mechanisms such as collision bead) can be not provided with, or is deployed using the stress release vertical bars of spring Distance.
When ring-type stirrup is elastic rib, ring-type stirrup wales inner circumferential rib in vertical bars.Vertical bars are synchronous in expansion body end with stirrup Deploy, be adjacent to, form steel reinforcement cage.Stirrup elasticity wale with release structure have it is a variety of, as stirrup end is prepared into pivot pin or axis hole Structure it is most commonly seen, insert certain fixing hole during pivot pin, then separately have the end that bearing pin fixes stirrup during axis hole.And it is easy to when needing Release, i.e. reducing steel reinforcement cage are opened in expansion body opening.
Pressure-bearing reducing steel reinforcement cage enlarging anchor rod of the present utility model or pile foundation, reducing steel reinforcement cage deploy when being placed in and expanding body section Release, slip casting or injection tremie mechanism are provided with reducing steel reinforcement cage, turn into anchor to reach slip casting or injection concrete Bar or pile foundation, reducing steel reinforcement cage turn into anchor pole or the skeleton of pile foundation.
Pressure-bearing reducing steel reinforcement cage of the present utility model, include but is not limited to tension member all size grade reinforcing bar, Steel strand wires, steel wire rope, combine to form enlarging anchor rod entirety;Further, the steel column with all size, shaped steel or not reducing steel reinforcement cage The bearing foundation of concrete structure (post/or stake), formed and expand body pile foundation entirety.
It is of the present utility model to apply engineering method:Rotary churning pile machine drill proceeds to projected depth → high-pressure rotary-spray construction or mechanical hole reaming is applied Expand mechanism in work → lower anchor head (or stake holes) → opening anchor head (or stake holes), steel reinforcement cage is opened to design size → high pressure injection Slurry or concrete perfusion.
Reducing steel reinforcement cage, parallel can be regular reinforcement after special working process, turn into elastic steel bar i.e. stirrup;Use Elastic steel bar after reason be processed into minor diameter stirrup (by tightly around or tighten up mode and wale whole vertical bars or rib);Pass through Tightly around or tighten up mode and wale whole vertical bars or rib, vertical bars periphery is provided with ring-type stirrup, ring-type stirrup and is provided with vertical bars solid Pinpoint (wire binding is the most commonly used).Tightly around or tighten up the end of elastic steel bar of mode and be released in the card or buckle of fixing point When, tightly around or tighten up the elastic steel bar of mode and unclamp, then steel reinforcement cage reducing (enlarged diameter), constitute the steel reinforcement cage of major diameter, Constitute anchor pole or the framework of steel reinforcement of pile foundation.
Second of reducing steel reinforcement cage, parallel can be steel strand wires or steel wire rope uniformly around or be uniformly distributed and be enclosed on outside vertical bars Week, constraint are entered with the device for spreading that relieving mechanism is double umbrella frames, vertical bars equivalent to the skeleton of umbrella frame or coaxial double umbrella rib structures Row release, parallel then turn into polygon ring-type stirrup, as vertical bars be eight when, parallel then turns into octagon.
In typical finished product:The diameter of parallel is general after steel reinforcement cage compression≤and 200mm is (relevant with the drilling being actually formed Parameter, difference drilling can have the diameter steel reinforcement cage (stirrup) of different size), after being placed in anchor pole expansion body section, open in steel reinforcement cage Constraint mechanism, weft wire diameters reach 400mm or so diameter (after can also binding round≤150mm, weft wire diameters reach 200- after expansion 350mm), general length is 1200-1600mm;According to demand, 500-2000mm or so can be reached by being also not excluded for weft wire diameters Or bigger diameter, steel reinforcement cage will first with the axial stem of big specification, vertical bars, after hoop the diameter of parallel (excircle) it is general≤300- 800mm, length increase and decrease according to demand.
Parallel can be helix or the equally distributed circumference in vertical bars.
Stirrup is close in the expansion under mechanism effect of vertical bars or rib can not extremely deploy to stop;Expanding the bottom that body section bottom is anchor pole Portion is mechanically connected the body of rod of anchor pole and enlarged footing with anchor plate (anchor plate is ring flat-plate).
Pressure-bearing type reducing steel reinforcement cage enlarged footing mooring rod technique reference《JGT/T282-2012 high-pressure injection enlarged footing anchor pole skills Art code》Design, construction, check and accept.The utility model is with the application for belonging to enlarged footing anchor pole or major part pile foundation technology.
The utility model, according to principle of the present utility model, be able to can also be formed more according to the requirement of concrete engineering The variable-diameter steel reinforcement cage of three-dimensional shape is planted, including/but be not limited to cylinder, polygon cylinder, cone, trapezoid cylinder, ring Shape cylinder etc. the utility model can require according to the performance of concrete engineering, according to variable diameters principle of the present utility model, To the pile foundation variable diameters steel reinforcement cage of super-large diameter, can also be formed it is double-deck/or multilayer vertical bars arrangement (cage is covered in cage) be characterized Variable-diameter steel reinforcement cage.
Beneficial effect:The pulling force or the anchor pole of drag transmission that the utility model can be formed with enough frictional force, anchoring Power significantly increases and the good integrity of whole anchor pole, is equally also used for the concrete reinforcing cage skeleton of enlarged footing pressure-bearing pile foundation.It is main It is used for building basement anti-floating, pattern foundation pit supporting structure, slope retaining, and the technology category such as reinforcing.The utility model technology can carry The resistance to plucking of confession is anti-or compressive resistance is bigger, stable and reliable for performance, and to reducing environmental pollution, aspect of speeding up the work has good Effect.The utility model disclosure satisfy that the larger stake for reducing higher cost using less material and the technique of low cost The construction requirement of base or anchor pole, there is good economy.The utility model is to traditional high-pressure injection enlarged footing anchor pole or stake Base technology improves lifting and innovation in a kind of of enlarged footing position, by after expanding head section and adding variable diameters steel reinforcement cage, being formed Steel reinforced concrete expanding head, make its overall stress, anchoring section stability and anti-pulling capacity performance etc. have compared with Big raising.
4th, illustrate
Fig. 1-1,1-2,1-3 are the structural representation of the utility model reducing steel reinforcement cage;Fig. 1-1 is extension spring expansion release Structure, Fig. 1-2 compressing springs expansion release structure, Fig. 1-3 are that the compressing spring that double-round shape fixator slides discharges deployed configuration.
Fig. 2 is enlarging anchor rod structural representation;
Fig. 3-1, Fig. 3-3 are the utility model tightening structure schematic diagram;Wherein Fig. 3-1 is the structure that loop bar is tightened up without spring Schematic diagram, Fig. 3-3 are that loop bar has the structural representation that spring is tightened up;Fig. 3-2 is that Fig. 3-1 bottoms guiding cap 14 replaces chassis 12 Partial schematic diagram, Fig. 3-4 be Fig. 3-3 bottoms guiding cap 14 replace chassis 12 partial schematic diagram.
Fig. 4-1 is that the utility model discharges structural representation schematic diagram;Fig. 4-2 is that another release structure of the utility model is shown Meaning schematic diagram (loop bar has spring);
Fig. 5 is B-B cross-sectional structure schematic diagrames in Fig. 4;
Fig. 6 is the attachment structure schematic diagram of rib 3 in Fig. 5;
Fig. 7 is the structural representation of outer ring-like stirrup 6 (helical form);
Fig. 8 is that the tightening structure of second support illustrates schematic diagram (enlarged drawing);
The release structural representation schematic diagram of Fig. 9 second supports;
Figure 10 is process flow diagram.In figure:Drill a → reaming b → lower anchor head c → opening anchor head in expand mechanism d, Steel reinforcement cage is opened to design size e, → high-pressure slip-casting or concrete perfusion f;
Figure 11 is structural representation when reducing steel reinforcement cage is tightened up;
Figure 12 is structural representation after reducing steel reinforcement cage product constraint mechanism is opened.
5th, embodiment
Shown in part in figure, axial stem 4, annulus or ring flat-plate 1, some vertical bars 2, rib 3, round fixator 5, annular collar Muscle 6, the steel collar 6-1 (fixed to be used with release) of stirrup end, ring-type stirrup and tie point 7, the relieving mechanism 8 of axial stem 4, ring Jack 8-1, steel tray and steel-pipe welding 9 that shape stirrup steel collar coordinates, counterweight 10, limiter 10-1, first support 11 and the Two support 11-1, chassis 12, steel tray (i.e. round fixator) 13, rib 3 can be flat bars;Bearing pin 3-1, bearing pin support are (U-shaped Fixed support) 3-2, breach 3-3.
The utility model basic structure is as shown in Figure 1, 2:Reducing steel reinforcement cage, including axial stem, annulus or ring flat-plate and some Vertical bars, rib, annulus or ring flat-plate are vertical with axial stem, and one end of some vertical bars is uniformly being fixed in annulus or ring flat-plate, and every perpendicular The other end of muscle or middle part are all connected with one end of a rib, and an end of rib is connected to a round fixator, and round fixator is consolidated It is scheduled on axial stem or pile foundation bar.Rib 3 is similar to the straight-bar of umbrella frame.
Fig. 3,4 be the utility model tightening structure and release structural representation, vertical bars are the six roots of sensation, in fact 3 and the above it is equal Can be with the ring-type of transverse polygonal when reducing steel reinforcement cage opens when then parallel is the structures such as steel strand wires, steel cable.
Vertical bars are the direct rod shape that parallel axial stem is distributed vertically in Fig. 3,4, and vertical bars can also be uniform oblique line distribution:
The vertical bars of the first steel reinforcement cage are usually uniform oblique line distribution in Fig. 1,2.One end of some vertical bars in annulus or Ring flat-plate is uniformly being fixed, and the other end of every vertical bars or middle part are all connected with one end of a rib, and the another of rib terminates to circle Shape fixator, the other end of every vertical bars or middle part are all connected with one end of a rib, and another round that terminates to of rib is fixed Device, round fixator slide in axial stem (pile foundation bar).When the annulus of one end fixation or the diameter ratio of ring flat-plate of some vertical bars Larger, the another of rib is terminated to after round fixator struts, and vertical bars can be distributed vertically with parallel axial stem.
Vertical bars can also be the shape with dentation or the shape with circular arc, then be more than 6 after reducing steel reinforcement cage struts Equally distributed vertical bars, which turn into, carries spherical or tooth column structure.
The vertical bars periphery of reducing steel reinforcement cage is provided with ring-type stirrup, and is the ring-type stirrup of elastic material.Ring-type stirrup can be with It is coil spring shape.It is unused state (being used to be put into drilling) that ring-type stirrup, which is tightened up, and the end of stirrup is provided with release device.Receive Tight and elastic restraint unused state, variable diameters after the release of ring-type stirrup, the enlarged-diameter circlewise original relaxed state of stirrup, After i.e. the smaller ring-type stirrup of diameter is discharged into the expansion body end of anchor pole or pile foundation, ring-type stirrup diameter is amplified to design requirement (such as allusion quotation The a of type is to be expanded to 400mm from diameter less than 200mm).
Strutting the release device of the vertical bars of rib has two kinds, first, the elastic locking of helical spring ring-type stirrup:Outside vertical bars Week is provided with garter spring stirrup (can also be provided with vertical bars inner circumferential, strut vertical bars in the position of the inner ring of vertical bars), spiral Ring spring ring-type stirrup and it is provided with fixing point with vertical bars, and is the garter spring stirrup of elastic material;Ring-type stirrup is tightened up It is unused state, the end of helical spring ring-type stirrup is provided with release device;The end of the helical spring ring-type stirrup is set There is release device;Stirrup end is prepared into the structure of pivot pin or axis hole, and it is solid that one is inserted when helical spring stirrup end is pivot pin Determine hole, then separately there is the end that bearing pin fixes stirrup when helical spring stirrup end is axis hole.
The second is the release device for the vertical bars for strutting rib is provided with during flexible steel wire in round fixator.Periphery parallel be During flexible steel wire, the release device that struts rib vertical bars is spring (similar) device for the loop bar for strutting umbrella frame by a minimum cunning Dynamic round fixator struts.
Fig. 1-1 to 1-3 the first reducing steel reinforcement cage include axial stem, annulus or ring flat-plate and some vertical bars, some ribs, Round fixator, annulus or ring flat-plate are vertical with axial stem, and one end of some vertical bars is uniformly being fixed in annulus or ring flat-plate, and every perpendicular The other end of muscle or middle part are all connected with one end of a rib, and the another of rib terminates to round fixator, and round fixator exists Slided in axial stem (pile foundation bar), for some vertical bars around axial stem, vertical bars periphery is provided with ring-type stirrup, ring-type stirrup and and vertical bars Provided with fixing point;Ring-type stirrup is flexible steel wire.In round fixator provided with the release dress for strutting rib vertical bars during flexible steel wire Putting is:Provided with the spring for being enclosed on axial stem, spring is locked or had in the state round fixator for having stress (compression or elongation) Stop, after locking or stop opening, spring stress drive round fixator slides in axial stem (pile foundation bar).Drive rib Stretch out, and make vertical bars abduction, be an action to open an umbrella, if Fig. 1-1 is extension spring expansion release structure, the expansion of Fig. 1-2 compressing springs Discharge structure, Fig. 1-3 for the compressing spring release deployed configuration that double-round shape fixator slides (consolidate by the double-round shape that can also be used for Fig. 2-3 Determine the steel reinforcement cage of device), or the opening structure for automatic umbrella (parachute-opening), i.e., applied to this.Fixator, which slides, has a stop device in axle It is fixed on to bar, and the elastic force of spring drives fixator to slide when stop discharges.The diameter of annulus or ring flat-plate is consolidated with round Determine device release after rib strut rear diameter it is identical when, vertical bars can also parallel to axial stem, form a cylindricality steel reinforcement cage;Annulus Or a round table-like steel reinforcement cage is then formed when rib struts rear diameter and differed after the release of the diameter of ring flat-plate and round fixator.
4-1 is the spring for being enclosed on axial stem, and 4-2 is the second rib, and 4-3 is the second round fixator, and the second rib connects Between the second round fixator and vertical bars, the second round fixator slides with round fixator in axial stem, the second circle Be provided with spring 4-1 between shape fixator and round fixator 5, when shrinking vertical bars, rib (to the right) of axial stem slide away from From the distance slided than the second rib, compressed between the second round fixator and round fixator 5 provided with spring 4-1, axle Stop the second round fixator or round fixator provided with stop to bar inside, then the second round fixator and circle when stop unclamps Shape fixator stretchs out the vertical bars of surrounding under spring force automatically to left movement.
Second of reducing steel reinforcement cage and the release structure of the first reducing steel reinforcement cage are identical or similar:Can only it use The spring for being enclosed on axial stem slides round fixator driving (another round fixator is fixed) including extension spring or compressing spring to one, Driving discharges two pairs of ribs (driving vertical bars again) simultaneously;Extension spring or compressing spring slide the action of round fixator to two and discharged simultaneously Two pairs of ribs.Extension spring or compressing spring can slide the action of round fixator to one and discharge two pairs of ribs simultaneously.One can also be used Round fixator is slided to extension spring or compressing spring to two to drive simultaneously, driving discharges two pairs of ribs simultaneously;Extension spring or compressing spring Size can be limited that card is fixed or round fixator in the elastic stress position of extension spring or compressing spring by stop or limiting card Limitation, when limiting card or stop disengage the release of then reducing steel reinforcement cage.
The spring and garter spring stirrup for being enclosed on axial stem can use simultaneously.
Another kind more specifically implements such as Fig. 3-9.The round being enclosed in Fig. 1-2 on main shaft or axial stem or hollow axis pole Fixator is steel tray 13;First support 11 and second support 11-1 are equipped with steel tray 13, then first support 11 and second Frame 11-1 two steel trays 13 are the first and second two round fixators, and similar two in axial stem 4) slip support Umbrella and the joint for closing one's umbrella and (corresponding to release and tighten up).In first support 11 and second support 11-1, each rib group is 6-10 Root flat steel bar, an end of rib are connected to steel tray, and the other end of rib is connected to vertical bars 2.The first and second two rounds are consolidated Determine device i.e. two steel tray and rib is connected to by vertical bars by bearing pin 3-1, bearing pin support (U-shaped fixed support) 3-2 respectively, carry out Active fixation.
Two round fixators stretch out respectively in upper and lower first support (i.e. component) 11 and second support (i.e. component) 11-1 Rib carries out active fixation in two positions of every vertical bars 2, and steel tray can slide axial stem 4, when steel tray slides Pack up vertical bars 2 when making rib to vertical direction, open vertical bars 2 when steel tray, which slides, makes rib to laterally flared direction (release).Chassis 12 is fixed on the end of axial stem 4 and is easy to the present apparatus inserting drilling, and axial stem 4 is cased with driving spring 4-1;Muscle Bar 3 can be flat bar;Bearing pin 3-1, bearing pin support (U-shaped fixed support) 3-2, steel tray 13 are installed on steel tray 13 and vertical bars 2 It is provided with the jack 8-1 that breach 3-3 and the annular collar concrete steel collar coordinate.
Ring-type stirrup 6 can be reused, and (helical form simultaneously has appropriate elasticity, can be with restrained and release, and diameter is during constraint The half of diameter during release, or diameter 10-35cm when can go out to tighten up constraint greatly during release) structure, stirrup end is provided with Steel collar 6-1, it is the part of the relieving mechanism of ring-type stirrup 6, annular collar concrete steel collar 6-1 and the upper annular stirrup steel of steel tray 13 The jack 8-1 that the collar coordinates is engaged, and a latch is stuck in into steel collar 6-1 and jack 8-1 is tightening up for constraining ring-type stirrup State, pull open the ring-type stirrup that latch has just discharged elasticity;Typical application parameter is, a diameter of 200mm during tightening structure state, A diameter of 400mm when discharging configuration state.The variable diameters steel reinforcement cage of other specifications matches with various boring apertures and application requirement .
Figure 10 construction process:Positioning → cement mortar preparation → rotary churning pile machine drill proceeds to projected depth (drilling a) → high pressure rotation Spraying construction or mechanical hole reaming construction (expand mechanism d, e, steel reinforcement cage are opened to setting in reaming b) → lower anchor head c → opening anchor head Count size (large-scale stake holes can reach more than 1 meter or nearly 2 meters) → high-pressure slip-casting or concrete perfusion f.
The construction application technique of reducing steel reinforcement cage:
A. regular reinforcement turns into elastic steel bar after special processing (quenching etc.) processing;Added with the elastic steel bar after processing Work is around next diameter stirrup that diminishes;Or the alone spring being enclosed in axial stem, the stress of spring are enough to drive round fixator to beat Open rib.
B. steel reinforcement cage finished product, reinforcing cage stirrup diameter≤200mm, after being placed in anchor pole expansion body section, the pact in steel reinforcement cage is opened Beam mechanism, stirrup diameter reach 400mm diameters;
C. stirrup is close in the expansion under mechanism effect of vertical muscle can not extremely deploy to stop;High-pressure slip-casting or concrete perfusion pile;
D. it is that anchor plate mechanically connects the body of rod and enlarged footing expanding body section bottom using chassis.Anchor plate is chassis 12 The replacement of the grade of cap 14 can be directed to, when being substituted with guiding cap, the active chassis anchor slab in bottom is pressure-bearing anchor plate.
Application of the present utility model include anti-floating pile, tension stake (anchor pole), slope protection pile (anchor pole), resistance to compression carrying engineering pile, It is also used for the pile foundation or anchor pole of geological hazard control.
The utility model energy-conserving and environment-protective, increase work efficiency, reduce cost and construction period, the engineering of application is wide, safely may be used Lean on, and easily carry out quality monitoring inspection and examine, shape and the position of metal are detected easily by modes such as X ray.
Embodiment of the present utility model is the foregoing is only, it is all in the utility model not to limit the utility model Spirit and principle within all any modification, equivalent and improvement made etc., with included in protection model of the present utility model Within enclosing.

Claims (11)

1. anchor pole or pile foundation variable diameters steel reinforcement cage, it is characterized in that including axial stem, annulus or ring flat-plate and some vertical bars with it is some Rib, round fixator, annulus or ring flat-plate are vertical with axial stem, and one end of some vertical bars is uniformly fixed in annulus or ring flat-plate, often The other end of root vertical bars or middle part are all connected with one end of a rib, and the another of rib terminates to round fixator, and round is fixed Device is slided or fixed in axial stem, and some vertical bars are provided with parallel of the ring-type stirrup as periphery around axial stem, vertical bars periphery, Ring-type stirrup and it is provided with fixing point with vertical bars;It is unused state that ring-type stirrup, which is tightened up, and ring-type stirrup is helical spring or flexibility Steel wire;The end of helical spring ring-type stirrup is provided with release device, is filled with during flexible steel wire provided with the release for strutting rib vertical bars Put.
2. anchor pole or pile foundation variable diameters steel reinforcement cage, it is characterized in that including axial stem, some vertical bars, at least two round fixators Some group ribs corresponding with round fixator, the round fixator are enclosed on axial stem or pile foundation bar, described every Individual round fixator around enclose it is each it is active fix one group and some vertical bars number identical ribs, in every group of rib, the one of rib The active mutually level position for connecing vertical bars is held, the other end of rib is active to be connected to round fixator, i.e., the difference of every vertical bars Height every group of active connection of rib with least two round fixators respectively, some vertical bars are around axial stem;
Vertical bars periphery is provided with parallel of the ring-type stirrup as periphery, ring-type stirrup and is provided with fixing point with vertical bars, and ring-type stirrup is The garter spring stirrup or flexible steel wire of elastic material;It is unused state that ring-type stirrup, which is tightened up, helical spring annular collar The end of muscle is provided with ring-type stirrup release device;With during flexible steel wire provided with the release device for strutting vertical bars and rib.
3. anchor pole according to claim 2 or pile foundation variable diameters steel reinforcement cage, it is characterized in that at least one round fixator Slided in axial stem or pile foundation bar, be provided with axial stem or pile foundation bar and slide round fixator positioner.
4. anchor pole or pile foundation the variable diameters steel reinforcement cage according to one of claim 1-3, it is characterized in that strutting releasing for vertical bars Put the end release device that device is external force release, gravity release or the helical spring ring-type stirrup;End release device is Ring-type stirrup end is prepared into the structure of pivot pin or axis hole, and a fixing hole is inserted when helical spring stirrup end is pivot pin, when Then separately there is the end that bearing pin fixes stirrup when helical spring stirrup end is axis hole.
5. anchor pole or pile foundation the variable diameters steel reinforcement cage according to claim 1 or 3, it is characterized in that the parallel of periphery is flexibility During steel wire, the release device for strutting rib vertical bars is to strut the device of umbrella frame;Flexible steel wire includes steel hinge line, steel cable or chain.
6. anchor pole or pile foundation the variable diameters steel reinforcement cage according to claim 1 or 3, it is characterized in that helical spring ring-type stirrup It is to strut vertical bars in the position of the inner ring of vertical bars;When helical spring ring-type stirrup and parallel are flexible steel wire, spring annular collar Muscle has fixing point with flexible steel wire with vertical bars, and fixing point is the snare for having certain space.
7. anchor pole or pile foundation the variable diameters steel reinforcement cage according to claim 1 or 3, it is characterized in that rib and the active company of vertical bars The mode connect:Rib is connected to vertical bars by round fixator by bearing pin, bearing pin support respectively;The radical of vertical bars rib is more than 3 Root.
8. anchor pole according to claim 7 or pile foundation variable diameters steel reinforcement cage, it is characterized in that vertical bars are straight lines or curved Bent.
9. anchor pole or pile foundation the variable diameters steel reinforcement cage according to Claims 2 or 3, it is characterized in that being fixed more than 2 rounds Device is uniformly distributed on axle, has a round fixator to be slided in axial stem at least, and is slided provided with limitation round fixator The stop of distance.
10. anchor pole or pile foundation variable diameters steel reinforcement cage according to one of claim 1 or 3, it is characterized in that the parallel of periphery To slide release device of the round fixator provided with the vertical bars for strutting rib during flexible steel wire;Strut the vertical bars release dress of rib It is set to and struts the spring assembly for being enclosed on axial stem of round fixator and strut the round fixator of minimum one slip.
11. anchor pole or pile foundation the variable diameters steel reinforcement cage according to one of claim 1-3, it is characterized in that working as round fixator During to be fixed on the structure of axial stem, round fixator is integrated with axial stem.
CN201720499445.8U 2017-05-08 2017-05-08 A kind of anchor pole or pile foundation variable diameters steel reinforcement cage Active CN206736901U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108677931A (en) * 2018-05-07 2018-10-19 安徽省公路桥梁工程有限公司 A kind of great diameter and long combined deposited pile construction method
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
CN110042827A (en) * 2018-01-17 2019-07-23 中国电力科学研究院有限公司 A kind of squeezed bored concrete pile force bearing disk arrangement of reinforcement device and application method
WO2020238501A1 (en) * 2019-05-28 2020-12-03 江苏景源万河环境科技有限公司 Full-assembly pressure-bearing type variable-diameter steel cage expansion head anchor rod pile system
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

Cited By (6)

* Cited by examiner, † Cited by third party
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
EA038513B1 (en) * 2017-05-08 2021-09-08 Цзянсу Грин Ривер Энвайронментал Текнолоджи Ко., Лтд. Variable-diameter reinforcing cage for anchor rod or pile foundation and use thereof
CN110042827A (en) * 2018-01-17 2019-07-23 中国电力科学研究院有限公司 A kind of squeezed bored concrete pile force bearing disk arrangement of reinforcement device and application method
CN108677931A (en) * 2018-05-07 2018-10-19 安徽省公路桥梁工程有限公司 A kind of great diameter and long combined deposited pile construction method
WO2020238501A1 (en) * 2019-05-28 2020-12-03 江苏景源万河环境科技有限公司 Full-assembly pressure-bearing type variable-diameter steel cage expansion head anchor rod pile system

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