CN107059861A - It is a kind of into disc tool and with the native anchor of the polydisc prepared into disc tool - Google Patents
It is a kind of into disc tool and with the native anchor of the polydisc prepared into disc tool Download PDFInfo
- Publication number
- CN107059861A CN107059861A CN201710407904.XA CN201710407904A CN107059861A CN 107059861 A CN107059861 A CN 107059861A CN 201710407904 A CN201710407904 A CN 201710407904A CN 107059861 A CN107059861 A CN 107059861A
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- China
- Prior art keywords
- pressing plate
- disc tool
- internal lining
- lining pipe
- air bag
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention provides a kind of into disc tool and with the native anchor of the polydisc prepared into disc tool, is played a supporting role into disc tool including internal lining pipe located at the innermost layer into disc tool to described into disc tool；Air sac cover is located at the outer layer of the internal lining pipe, flexible, along the internal lining pipe radial expansion；Pressing plate is on the outer surface of the air bag, and the pressing plate is provided with projection, and the pressing plate is moved radially with the air bag along the internal lining pipe radial expansion.Polydisc soil anchor includes the polydisc of the outer surface for being located on the cylinder at cylinder and interval.What the present invention was provided is radially expanded into disc tool using airbag aeration promotion pressing plate, by in the soil of the projection press-in drilling of clamp surface, and multiple disk chambers are formed by operations such as multiple inflation/deflation, rotation and stretchings, the grout injection into the drilling expanded again, treat grout cures into disk body, each disk body is met native face and acted on by the pressure broken ground, and finally results in higher anchor force.
Description
Technical field
The present invention relates to soil layer anchorage cable anchoring field, and in particular to a kind of into disc tool and with the polydisc prepared into disc tool
Native anchor.
Background technology
Native anchor is widely used in the engineering such as foundation pit enclosure and slope treatment.In the prior art, soil layer anchor cable construction one
As first drilling place into steel strand wires or screw-thread steel, then grout injection, treats grout cures post-tensioning steel strand or screw-thread steel.
To obtain larger anchor force, increasing anchoring diameter or increase anchorage length are generally selected, but increase anchoring diameter causes cement mortar
Consumption dramaticallys increase to cause cost increase, while the length increase of anchoring section is then restricted.
During existing cement injection puddled soil anchor work, outer surface is acted on by frictional resistance and cohesive force, and withdrawal resistance is smaller, is this
The native anchor of enlarged footing is generated, the native face of meeting of enlarged footing soil anchor is acted on by passive earth pressure, meets the bigger anchor force of native area also more
Greatly；But because enlarged footing cavity forming technology is complicated, and a large amount of cement mortars can be consumed in practical application, therefore its is less economical,
It is unsuitable for extensive use.
Accordingly, it is desirable to provide a kind of improved technology scheme not enough for above-mentioned prior art.
The content of the invention
The present invention using it is simple in construction be easily achieved on native anchor surface form multiple disk bodies into disc tool, it is therefore intended that profit
Native face is met with polydisc and is acted on this feature by passive earth pressure, in addition polydisc it is accumulative to meet native face area bigger, so as to obtain higher
Anchor force, and the increase cement mortar increment of disk is less, it is economic and practical.
To achieve these goals, the present invention provides following technical scheme：One kind into disc tool, including：Internal lining pipe, is located at
The innermost layer into disc tool is played a supporting role to described into disc tool；Air bag, is sheathed on the outer layer of the internal lining pipe, tool
It is flexible, along the internal lining pipe radial expansion；Pressing plate, on the outer surface of the air bag, the pressing plate is provided with projection, institute
Pressing plate is stated to move radially along the internal lining pipe radial expansion with the air bag.
As described above a kind of into disc tool, it is preferable that the internal lining pipe is that both ends are sealed, and surface is provided with air inlet
The hollow cylinder in hole；It is fixed with a sealed end of the internal lining pipe on the push-and-pull part of load, a sealed end
Air inlet pipe nipple is additionally provided with, the air inlet pipe nipple is located at one end and the two direction outwards extended one with the push-and-pull part
Cause, described air inlet pipe nipple one end is fixed and connected with the internal lining pipe, and external air source is entered by the other end of the air inlet pipe nipple
Enter the inside of the internal lining pipe.
As described above a kind of into disc tool, it is preferable that the air bag is wrapped in the periphery of the internal lining pipe, and passes through
Mechanical seal fixture is by the air bag and the both ends fixing seal of the internal lining pipe.
As described above a kind of into disc tool, it is preferable that the air admission hole is multiple, in uniformly or non-uniformly form
It is distributed in the surface of the internal lining pipe.
As described above a kind of into disc tool, it is preferable that the pressing plate is curved thin plate, the inner surface of the pressing plate with
The air bag fits, and the outer surface of the pressing plate is provided with projection；The quantity of the projection is multiple, and multiple projections exist
Relative on the pressing plate, interval or staggered；The number of the pressing plate is 2-6, is located on the outer surface of the air bag.
As described above a kind of into disc tool, it is preferable that the periphery of the pressing plate is provided with annular resilient part, the ring-type
The number of elastic component is multiple and is axially distributed between multiple projections along the pressing plate.
As described above a kind of into disc tool, it is preferable that two ends fixed in the mechanical seal fixture are set
Spacing ring is put, the spacing ring is the cylinder of end face of the one end provided with central aperture, one end of the end face and the spacing ring
Step is formed, the air bag is straight when the diameter of the perforate of the end face is equal to the outside and the unaerated that are enclosed on the internal lining pipe
Footpath；The diameter of the spacing ring is fitted on the pressing plate of the gasbag outer surface when being more than or equal to the air bag unaerated
The projection overall diameter.
As described above a kind of into disc tool, it is preferable that the length for being shorter in length than the internal lining pipe of the pressing plate；Institute
The two ends for stating pressing plate are arranged in the step that one end of the spacing ring is formed with the end face；It is described during the airbag aeration
Pressing plate outer surface and the inner surface of the step fit.
As described above a kind of into disc tool, it is preferable that the overall diameter of the spacing ring is less than bore diameter, the limit
There are filling curing materials in space, the space between the position inner surface of ring and the outer surface of the air bag.
A kind of to use the native anchor of polydisc prepared into disc tool, the native anchor of the polydisc includes：Cylinder, the cylinder
Internal portion is provided with steel strand wires or screw-thread steel, and the steel strand wires or screw-thread steel extend one end of the cylinder, extend out
Part be connected with outside force application object；Disk body, the outer surface for being located on the cylinder at multiple disk body intervals；It is described
Cylinder is obtained by cement mortar or cement mortar solidification, and the length of the cylinder is not more than the depth of drilling, the cylinder
Diameter be equal to drilling diameter；The disk body is integrally formed with the cylinder by the cement mortar or cement mortar solidification,
The disk body is overall or non-overall.
Analysis understands that compared with prior art, the advantages of the present invention are：
1st, the native anchor of polydisc of the invention, anchor force is improved using polydisc, under conditions of required anchor force is equal, this hair
It is bright accordingly to shorten anchorage length, so as to reduce the consumption of drillable length, steel strand wires length and cement mortar, therefore significantly drop
Low anchoring expense, it is economic and practical.
2nd, the native anchor of the polydisc that the present invention is provided using airbag aeration so that into disc tool as mould, pressing plate footpath is promoted into disc tool
To expansion, the projection of clamp surface is pressed into the soil of drilling, and forms many by operations such as multiple inflation/deflation, rotation and stretchings
Individual disk chamber, then grout injection or cement mortar into the drilling expanded, treat cement mortar or cement mortar solidification into disk body, respectively
Disk body is met native face and acted on by passive earth pressure, finally results in higher anchor force.
3rd, the native anchor of the polydisc that the present invention is provided is using into disc tool as mould, and lightweight into disc tool, air bag inflation pressure is small,
Intake and exhaust speed is fast, and safety is easy to operate and speed of application is fast.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not constitute inappropriate limitation of the present invention.Wherein：
Fig. 1 is the internal lining pipe structural representation into disc tool of the invention.
Fig. 2 is the airbag structure schematic diagram into disc tool of the invention.
Fig. 3 is the pressure plate structure schematic diagram into disc tool of the invention.
The spacing ring structural representation into disc tool of Fig. 4 present invention.
The assembling figure into disc tool of Fig. 5 present invention.
The profile into one end during disc tool inflation of Fig. 6 present invention.
Fig. 7 is the structural representation of the native anchor of polydisc of one embodiment of the invention.
Description of reference numerals：1- disk bodies, 2- cylinders, 3- steel strand wires, 4- pull bars, 5- air inlet pipe nipples,
6- air admission holes, 7- internal lining pipes, 8- air bags, 9- clips, 10- projections, 11- pressing plates, 12- spacing rings, 13- elastic telescopics
Bar, 14- curing materials.
Embodiment
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.The explanation that each example passes through the present invention
Mode, which is provided, to be not intended to limit the present invention.In fact, those skilled in the art will be clear that, the scope of the present invention or essence are not being departed from
In the case of god, it can modify in the present invention and modification.For example, being illustrated or described as the spy of the part of one embodiment
Levy available for another embodiment, to produce another embodiment.Thus, it may be desirable to which the present invention, which is included, is included into appended power
Such modifications and variations in the range of profit requirement and its equivalent.
In the description of the invention, term " longitudinal direction ", " transverse direction ", " on ", " under ", "front", "rear", "left", "right", " perpendicular
Directly ", the orientation or position relationship of the instruction such as " level ", " top ", " bottom " are, based on orientation shown in the drawings or position relationship, to be only
For the ease of the description present invention rather than require that the present invention must be therefore it is not intended that right with specific azimuth configuration and operation
The limitation of the present invention.The term " connected " that is used in the present invention, " connection " should be interpreted broadly, for example, it may be connection, also may be used
To be to be detachably connected；Can be joined directly together, can also be indirectly connected to by intermediate member, for the ordinary skill of this area
For personnel, the concrete meaning of above-mentioned term can be understood as the case may be.
As shown in Figures 1 to 7, the present invention provides a kind of into disc tool and with the native anchor of the polydisc manufactured into disc tool, polydisc
Native anchor includes multiple disk chambers and cylinder 2 is formed after grout injection or cement mortar solidification with drilling, and multiple disk bodies are located at
The outer surface of cylinder 2, with one entirety of formation of cylinder 2,1 point of disk body is overall, half disk, a quarter disk etc., disk section shape
Shape is the geometry such as trapezoidal, semicircle.Include internal lining pipe 7 into disc tool, it is air bag 8, pressing plate 11, elastic telescoping strip 13, convex
Block 10 and spacing ring 12, air bag 8 are enclosed on the outer surface of internal lining pipe 7, and by mechanical seal fixture by air bag 8 and internal lining pipe 7
Both ends fixing seal.Internal lining pipe 7 is closed at both ends and surface is provided with multiple air admission holes 6, and one of blind end, which is set, to be had
The pull bar 4 of push-and-pull action and air inlet pipe nipple 5.Mechanical seal fixture is preferably clip 9 in the present embodiment.Clip 9 by air bag 8 with
The banding of internal lining pipe 7 is simultaneously sealed, the outer surface of air bag 8 installing polylith strip pressing plate 11, and the surface of pressing plate 11 is relative, is spaced or is interspersed
Projection 10, the outer surface of pressing plate 11 winding annular resilient part, the preferred annular resilient part of the present embodiment is elastic telescoping strip 13, pull bar 4
It is welded on the termination facade of internal lining pipe 7, the two ends of pressing plate 11 respectively set spacing ring 12, spacing ring 12 is enclosed on the outer surface of air bag 8, spacing ring
Cavity filling curing materials 14 between 12 and air bag 8, curing materials 14 can have some strength for cement mortar, polyurethane etc.
Material.The preferred low-grade cement mortar of the present embodiment is as curing materials 14, after low-grade cement mortar solidification to be filled,
The relative position of spacing ring 12 and air bag 8 can be fixed.Pressing plate 11 being radially expanded or shrink, spacing ring 11 along internal lining pipe 7
Diameter is slightly less than bore diameter.
As shown in figures 1 to 6, embodiments of the invention are placed in foundation ditch or side slope drilling there is provided one kind and for safeguarding base
Hole or stability of slope into disc tool, mainly include into disc tool：Internal lining pipe 7, internal lining pipe 7 is located at into the centre bit of disc tool
Put, internal lining pipe 7 is that surface is provided with multiple air admission holes 6, and hollow cylinder closed at both ends, one of closing of internal lining pipe 7
End, which is fixed with, can bear the pulling element of drawing active force.Pulling element is preferably pull bar 4, and pull bar 4 is solid pull bar, is drawn
Bar 4 is used to be pushed into or extracting drilling into disc tool.
The one of blind end and the homonymy of pull bar 4 of internal lining pipe 7 are provided with air inlet pipe nipple 5, and the two outwards extends
Direction it is consistent.Air inlet pipe nipple 5 is hollow pipe, and its one end is connected with the one end of internal lining pipe 7, and the other end passes through external air inlet pipe and gas
Source is connected, and when source of the gas works, gas is passed through inside internal lining pipe 7 by external air inlet pipe and air inlet pipe nipple 5, the surface of internal lining pipe 7
Provided with multiple air admission holes 6, gas is filled with by air admission hole 6 to be sheathed on inside the air bag 8 of the outer surface of internal lining pipe 7, and air bag 8 is sheathed on interior
The outer surface of bushing pipe 7, two ends are with clip 9 by air bag 8 and the strictly sealing fixation of internal lining pipe 7, and air bag 8 can be along the footpath of internal lining pipe 7 after inflating
To expansion.
Pressing plate 11 as shown in Figure 3 is provided with outside the air bag 8 into disc tool, pressing plate 11 is the arc that top carries projection 10
Shape thin plate, the outer surface of the curved thin plate inner surface and air bag 8 of pressing plate 11 fits, pressing plate 11 can with the filling of air bag 8, deflate it is dynamic
Make moving radially along internal lining pipe 7.The outer surface of pressing plate 11 set projection 10 with pressing plate 11 along internal lining pipe 7 be radially expanded when
Wait, be pressed into the side of drilling, formed and the same cavity of projection 10, deflated afterwards on the side of drilling, air bag 8 and pressing plate 11
Along the radial contraction of internal lining pipe 7 in the presence of the annular elastic member outside pressing plate 11, i.e. elastic telescoping strip 13, until gas
Capsule 8 fits in the outer surface of internal lining pipe 7 completely, be then rotated into disc tool to certain angle (rotation angle range 30 ° -90 ° it
Between, depending on the specific anglec of rotation is according to selected strip pressing plate number, when from two pressing plates, the anglec of rotation is 90 °；From three
During individual pressing plate, the anglec of rotation is 60 °；During from four pressing plates, the anglec of rotation is 45 °；During from 5 pressing plates, the anglec of rotation is
36°；During from six pressing plates, the anglec of rotation is 30 °；General pressing plate number is 2-6), then outwards pull into disc tool extremely
At a certain distance from (it is that Far Left projection and rightmost projection centre-to-centre spacing are added in adjacent two projection in Fig. 3 and Fig. 5 to pull distance
The heart away from), above-mentioned inflation/deflation step is repeated, until completing whole support plate coelosis operations.
Shape, the number of projection 10, the factor such as the arrangement mode of the number and projection 10 of pressing plate 11 outside pressing plate 11
Directly affect the species and the cross sectional shape of disk body 1 of the disk of the disk body 1 of the native anchor of polydisc, thus the selection of projection 10 can refer to it is following
The selection of disk body 1 carries out correspondence setting.
It is as follows to the selection concrete example of above-mentioned projection 10 and pressing plate 11：When the disk body 1 of the native anchor of polydisc selects overall, most
It is preferred that select pressing plate quantity for 4, first inflation into petal sample chamber, then rotate 45 ° obtain full chamber, actual support plate during,
Formation petal sample chamber can be also met under the premise of anchor force requirement, the step for can saving rotation, so as to shorten the engineering time, improved
Efficiency of construction, saves construction cost., can be according to the species and shape of the disk body 1 needed in practical application with reference to above-mentioned example
Adaptation Sexual behavior mode is carried out to pressing plate 11 and projection 10, so as to obtain optimal construction plan.
As shown in figure 4, into the spacing ring 12 of disc tool, to be inflated in an embodiment of the present invention to ensure into disc tool
When, pressing plate 11 expands along the radial direction of internal lining pipe 7 in prescribed limit, and the outside of clip 9 at the two ends of internal lining pipe 7 sets spacing ring
12, spacing ring 12 is the cylinder of end face of the one end provided with central aperture, and one end of end face and spacing ring 12 forms step, end face
The diameter of air bag 8 when the diameter of perforate is equal to the outside and the unaerated that are enclosed on internal lining pipe 7；The diameter of spacing ring 12 be more than or
The overall diameter of the projection 10 fitted in during equal to air bag unaerated on the pressing plate 11 of the outer surface of air bag 8.Pressing plate 11 is shorter than internal lining pipe
7, end face of the length of pressing plate 11 just enough with spacing ring 12 fits, and the two ends of such pressing plate 11 are arranged in the end of spacing ring 12
In the step that portion is formed with end face, when air bag 8 is inflated, pressing plate 11 is radially expanded along internal lining pipe 7 until pressing plate 11 and spacing ring 12
The inner surface of step fit, i.e., the gap of the step of spacing ring 12 is the maximum displacement of pressing plate 11.
The drum diameter of spacing ring 12 is more than the diameter of air bag 8, therefore there is space between spacing ring 12 and air bag 8, in order to limit
This section of air bag expansion is made, curing materials 14 are filled inside space, curing materials 14 can have for cement mortar, polyurethane etc.
The material of some strength.Preferred cement mortar can realize two as curing materials 14 after cement mortar solidification in the present embodiment
Individual function, first can fix the position of spacing ring 12, and second, which can limit this section of air bag 8, expands.Spacing ring 12 is straight simultaneously
Footpath is slightly less than bore diameter, so entirely easily can be pushed into or drag by pull bar 4 in the case of unaerated into disc tool
Go out drilling, the soil layer state without destroying drilling medial surface.
Using above-mentioned into disc tool as mould, casting cement slurry or the native anchor of cement mortar formation polydisc, as shown in fig. 7, being this
A kind of native anchor of polydisc of embodiment embodiment formation, the native anchor of polydisc of the present embodiment mainly by cylinder 2 and is located on
The disk body 1 of the outer surface of cylinder 2 is constituted, and cylinder 2 and disk body 1 are after the cement mortar or cement mortar solidification being poured into drilling
It is integrally formed, the present embodiment preferred consolidation material is cement mortar, can be also added to accelerate grout cures shaping in cement mortar
Accelerator etc..Cylinder 2 be internally provided with can load pulling element, pulling element can be steel strand wires or screw-thread steel herein
Deng the pulling element of, preferred steel strand wires 3 of the present embodiment as the native anchor load of polydisc, steel strand wires 3 are located at the center of cylinder 2 and by interior
One end of cylinder 2 is extended outward, the length of steel strand wires 3 for extending the one end of cylinder 2 is adjusted according to practical application, herein not
Limit.
The native anchor of the polydisc of the present embodiment uses the grout injection curing molding into drilling, first twists steel during grout injection
Line 3 is enclosed on to being placed in bore inner, then the grout injection into drilling on medium-height trestle, and after after grout cures, steel strand wires 3 are just solid
Inside cylinder 2.
In addition, preferably to ensure the bond stress between steel strand wires 3 and cylinder 2, extend the durability of steel strand wires 3, it is excellent
Select the choosing plating of the outside of steel strand wires 3 or choosing to apply other metals, it is nonmetallic, such as zinc-plated or applying epoxy resin, aforesaid operations can basis
Actual conditions be not specifically limited in adaptation Sexual behavior mode, the present embodiment.
The disk body 1 of the native anchor of the polydisc of the present embodiment is located on the surface of cylinder 2, disk body 1 can for it is overall or it is non-totally,
Disk body 1 for it is non-overall when, be divided into that two valves, three valves and pintongs etc. are a variety of, the selection of the species of disk can be according to the base of required anchoring
The depth in hole or the gradient of side slope and speed of application are selected.Preferred disk body 1 is overall in this example, in required anchor force
One timing, disk body 1, while saving construction cost, improves efficiency of construction from that can shorten anchorage length totally.When disk body 1 is
When non-overall, the mode that disk body 1 is set on the surface of cylinder 2 can be interval, be oppositely arranged or the angled setting of interleaved,
The cross sectional shape of disk body 1 can be to be not specifically limited in the geometry for being suitable to stress such as circular, trapezoidal, the present embodiment.
The native anchor of the polydisc of the present embodiment uses the grout injection into drilling and coelosis, after one after grout cures into
Type.Therefore the support plate in drilling is needed, support plate operation uses into disc tool completion.It is logical into disc tool to be selected in the present embodiment
Cross multiple rotary, stretching and into air bag inflation/deflation mode, multiple disk chambers are formed in drilling, finally form many in drilling
The model of disk soil anchor.
One embodiment of the present embodiment is as follows：A kind of native anchor of polydisc includes polydisc anchoring body and into disc tool,
Polydisc anchoring body by grout cures Lai disk body 1 constituted with cylinder 2, cylinder 2 that cement solidification is obtained parcel steel is twisted
Line 3,1 point of disk body is overall, two valves, pintongs etc., and the cross sectional shape of disk body 1 is the shape such as trapezoidal, semicircle；Include into disc tool
Internal lining pipe 7, air bag 8, clip 9, pressing plate 11, elastic telescoping strip 12, projection 10 and spacing ring 12, air bag 8 are enclosed on the outer of internal lining pipe 7
Surface, internal lining pipe 7 is closed at both ends and surface is provided with multiple air admission holes 6, and one of blind end is provided with pull bar 4 and air inlet pipe nipple 5,
Clip 9 is by air bag 8 and the banding of internal lining pipe 7 and seals, the outer surface of air bag 8 installing polylith strip pressing plate 11, the surface interval of pressing plate 11
Projection 10 is distributed, the outer surface of pressing plate 11 winding elastic telescoping strip 13, pull bar 4 is welded on the termination facade of internal lining pipe 7,11 liang of pressing plate
End respectively sets spacing ring 12, and spacing ring 12 is enclosed on the outer surface of air bag 8, the cavity filling curing materials 14 between spacing ring 12 and air bag 8.
Pressing plate 11 is radially expanded or shunk, and the diameter of spacing ring 12 is slightly less than the diameter of drilling.
The native anchor of polydisc in the present embodiment is gone along with sb. to guard him applied to foundation pit enclosure with soil level sideslope.During construction, first drill, will be into disk
Instrument delivers to foot of hole by pull bar 4, now requires that the external diameter of spacing ring 12 is slightly smaller than the diameter of drilling, it is ensured that into disc tool
Can be freely be advanced to foot of hole, the external air inlet pipe of air inlet pipe nipple 5 is simultaneously connected with source of the gas, passes through air inlet pipe and air inlet pipe nipple
5 inflate to air bag 8, the inflation of air bag 8, promote pressure plare 11 and projection 10 positioned at the surface of air bag 8 to move radially so that
Projection 10 is squeezed into inside soil body, after projection 10 is completely forced into the soil body, and pressing plate 11 clings to drilling inner surface, and pressing plate 11 is radially
Amount of movement reduces immediately, and the swell increment of air bag 8 is strongly reduced, and the blowing pressure is raised in air bag 8, and source of the gas stops inflation, then passes through
Air inlet pipe nipple 5 and the drain tap in external air inlet pipe are deflated, and air bag 8 shrinks, and pressing plate 11 is positioned at its surface
Bounced back in the presence of elastic telescoping strip 13 so that air bag 8, pressing plate 11, projection 10 and the homing of elastic telescoping strip 13, in drilling
The wall formation depression consistent with the shape of projection 10, original position rotates the certain angle of pull bar 4 so that the alignment of projection 10 the wall of a borehole is not yet
The position of depression is formed, again inflation compression soil body formation depression, the depression UNICOM formed twice is into a plate-like cavity, outwards
The certain distance of pull bar 4 is pulled, continues to inflate the compression soil body in new position into disk chamber, until the complete coelosis of whole anchoring section is
Only.
The steel strand wires 3 and Grouting Pipe being fixed on to medium-height trestle are put into drilling, grout injection, slurry solidify to form many
Disk anchor, after grout cures reach some strength, tension steel strand 3 applies pretightning force, anchors the soil body.
In specific implementation process, for long 15m diameters 200mm native anchor, anchoring depth takes 12m, and every meter sets 3 road disks,
The road disks of Gong She 36, take 290mm, disc thickness to take 60mm into dish external diameter.Into in disc tool internal lining pipe 7 choose length be 1500mm,
External diameter is the steel pipe that 89mm, wall thickness are 3mm, and the two ends closure riser thickness of steel pipe is taken as 3mm, the drilled in middle diameter of internal lining pipe 7
For 6mm gas inlet hole 6, the steel pipe and external diameter that riser one end welding external diameter is 25mm are 15mm, and internal diameter is 10mm air inlet pipe nipple
5, the external air inlet pipe of air inlet pipe nipple 5 is to source of the gas, and in installing drain tap in air inlet pipe, and its length of internal lining pipe 7 is 1500mm,
External diameter is 98mm, and internal diameter is 90mm rubber pneumatic bag 8, and is sealed air bag 8 by clip 9, spacing ring 12 take external diameter for 198mm,
Internal diameter is the steel pipe that 100mm, length are 150mm, and ring set is outside air bag 8, and four pieces of arc strip pressing plates 11 are layered on the outside of air bag 8,
The length of pressing plate 11 is 1200mm, and thickness is 3mm；Arc length per block pressur plate 11 is 80mm, is spaced apart along every surface of block pressur plate 11
Four projections 10, the spacing of projection 10 is 300mm, be highly 45mm, thickness is 60mm, the outside of pressing plate 11 winding 2mm thickness
Rubber strip be elastic telescoping strip 13, between spacing ring 12 and air bag 8 backfilling cement starch, mortar solidification after cause spacing ring 12 with card
Bind round 9 cementing integral, the control amounts of moving radially of pressing plate 11 of spacing ring 12, air bag 8 is limited in what spacing ring 12 was surrounded with pressing plate 11
In space.The blowing pressure of air bag 8 is controlled in 0.5 MPa, and four projections 10 in each section firming under gas pressure is formed
The depression of four separations, original position rotates 45 ° of pull bar, continues to inflate firming formation depression, the depression composition that original position is formed twice
Plate-like cavity, pulls out pull bar to new position, continues to inflate in firming coelosis, whole anchoring section 12m length, is formed altogether
36, disk chamber.The steel strand wires and Grouting Pipe being fixed on to medium-height trestle are put into drilling, steel strand wires soil is bonded with existing cement mortar
Anchor construction method is consistent, then grout injection, and slurry solidify to form polydisc anchor, after grout cures reach some strength,
Tension steel strand, applies pretightning force, anchors the soil body.
Next, explanation beneficial effects of the present invention.
1st, the native anchor of polydisc of the invention, anchor force is improved using polydisc, under conditions of required anchor force is equal, the present invention
Anchorage length can accordingly be shortened, so as to reduce the consumption of drillable length, steel strand wires length and cement mortar, therefore be greatly lowered
Anchoring expense, it is economic and practical.
2nd, the native anchor of the polydisc that the present invention is provided using airbag aeration so that into disc tool as mould, pressing plate footpath is promoted into disc tool
To expansion, the projection of clamp surface is pressed into the soil of drilling, and forms many by operations such as multiple inflation/deflation, rotation and stretchings
Individual disk chamber, then the grout injection into the drilling expanded, treat grout cures into disk body, and each disk body meets native face by being broken ground
Pressure effect, finally result in higher anchor force.
3rd, the native anchor of the polydisc that the present invention is provided is using into disc tool as mould, and lightweight into disc tool, air bag inflation pressure is small,
Intake and exhaust speed is fast, and safety is easy to operate and speed of application is fast.
As known by the technical knowledge, the present invention can be by the embodiment party of other essence or essential feature without departing from its spirit
Case is realized.Therefore, embodiment disclosed above, for each side, is all merely illustrative, and is not only.Institute
Have within the scope of the present invention or be included in the invention in the change being equal in the scope of the present invention.
Claims (10)
1. it is a kind of into disc tool, it is characterised in that including：
Internal lining pipe, plays a supporting role located at the innermost layer into disc tool to described into disc tool；
Air bag, is sheathed on the outer layer of the internal lining pipe, flexible, along the internal lining pipe radial expansion；
Pressing plate, on the outer surface of the air bag, the pressing plate is provided with projection, and the pressing plate is with the air bag along described interior
Bushing pipe radial expansion and move radially.
2. it is according to claim 1 into disc tool, it is characterised in that
The internal lining pipe is that both ends are sealed, and surface is provided with the hollow cylinder of air admission hole；In a sealing of the internal lining pipe
The push-and-pull part of load is fixed with end；
Air inlet pipe nipple is additionally provided with one sealed end；
The air inlet pipe nipple and the push-and-pull part are located at one end and the two direction outwards extended is consistent, it is described enter shortness of breath
Section one end is fixed and connected with the internal lining pipe, and external air source enters the internal lining pipe by the other end of the air inlet pipe nipple
It is internal.
3. it is according to claim 1 into disc tool, it is characterised in that
The air bag is wrapped in the periphery of the internal lining pipe, and by mechanical seal fixture by the air bag and the internal lining pipe
Both ends fixing seal.
4. it is according to claim 2 into disc tool, it is characterised in that
The air admission hole is multiple, with uniformly or non-uniformly formal distribution on the surface of the internal lining pipe.
5. it is according to claim 1 into disc tool, it is characterised in that
The pressing plate is curved thin plate, and the inner surface of the pressing plate fits with the air bag, set on the outer surface of the pressing plate
There is projection；The quantity of the projection is multiple, and multiple projections are relative on the pressing plate, interval or staggered；
The number of the pressing plate is 2-6, is located on the outer surface of the air bag.
6. it is according to claim 5 into disc tool, it is characterised in that
The periphery of the pressing plate is provided with annular resilient part, and the number of the annular resilient part is multiple and axially divided along the pressing plate
It is distributed between multiple projections.
7. it is according to claim 3 into disc tool, it is characterised in that
Two ends fixed in the mechanical seal fixture set spacing ring, and the spacing ring is that one end is provided with central aperture
End face cylinder, one end of the end face and the spacing ring forms step, and the diameter of the perforate of the end face, which is equal to, to be enclosed on
The diameter of the air bag when outside of the internal lining pipe and unaerated；
The diameter of the spacing ring fits in the pressing plate of the gasbag outer surface when being more than or equal to the air bag unaerated
On the projection overall diameter.
8. it is according to claim 7 into disc tool, it is characterised in that
The length for being shorter in length than the internal lining pipe of the pressing plate；The two ends of the pressing plate be arranged in one end of the spacing ring with
In the step of the end face formation；During the airbag aeration, the pressing plate outer surface and the inner surface of the step fit.
9. it is according to claim 8 into disc tool, it is characterised in that
The overall diameter of the spacing ring is less than the diameter of drilling, between the inner surface of the spacing ring and the outer surface of the air bag
There are filling curing materials in space, the space.
10. the native anchor of polydisc prepared into disc tool described in a kind of use claim any one of 1-9, it is characterised in that
The native anchor of the polydisc includes：
The pulling element for load is provided with inside cylinder, the cylinder, and the pulling element extends the cylinder
One end of body, the part extended out is connected with outside force application object；
Disk body, the outer surface for being located on the cylinder at multiple disk body intervals；
The cylinder is obtained by cement mortar or cement mortar solidification, and the length of the cylinder is not more than the depth of drilling, institute
The diameter for stating cylinder is equal to the diameter of drilling；
The disk body is integrally formed with the cylinder by cement mortar or cement mortar solidification, and the disk body is overall or non-complete
Disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710407904.XA CN107059861B (en) | 2017-06-02 | 2017-06-02 | Disk forming tool and multi-disk soil anchor prepared by using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710407904.XA CN107059861B (en) | 2017-06-02 | 2017-06-02 | Disk forming tool and multi-disk soil anchor prepared by using same |
Publications (2)
| Publication Number | Publication Date |
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| CN107059861A true CN107059861A (en) | 2017-08-18 |
| CN107059861B CN107059861B (en) | 2023-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710407904.XA Active CN107059861B (en) | 2017-06-02 | 2017-06-02 | Disk forming tool and multi-disk soil anchor prepared by using same |
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| CN (1) | CN107059861B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111172994A (en) * | 2019-12-31 | 2020-05-19 | 甘肃建投建设有限公司 | Foundation pit supporting structure based on high-pressure jet grouting pile |
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| JP2000129671A (en) * | 1998-10-23 | 2000-05-09 | Nippon Steel Corp | Steel-pipe pile with knot, manufacture thereof, and bored-pile construction method for steel-pipe pile with knot |
| JP2002339352A (en) * | 2001-05-21 | 2002-11-27 | Michiaki Sugawara | Steel pipe pile with enlarged base |
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| KR100944460B1 (en) * | 2008-12-27 | 2010-03-05 | 박이근 | The spike expansion pack multistage with anchor using pack and the constructing method thereof |
| CN105369804A (en) * | 2015-10-12 | 2016-03-02 | 安徽理工大学 | Aerated soil anchor |
| CN206784377U (en) * | 2017-06-02 | 2017-12-22 | 安徽理工大学 | It is a kind of into disc tool and with the polydisc soil anchor prepared into disc tool |
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2017
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| JP2000129671A (en) * | 1998-10-23 | 2000-05-09 | Nippon Steel Corp | Steel-pipe pile with knot, manufacture thereof, and bored-pile construction method for steel-pipe pile with knot |
| JP2002339352A (en) * | 2001-05-21 | 2002-11-27 | Michiaki Sugawara | Steel pipe pile with enlarged base |
| US20040247397A1 (en) * | 2002-12-06 | 2004-12-09 | Fox Nathaniel S. | Method for construction of piers in soil and a pier construction |
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| KR100944460B1 (en) * | 2008-12-27 | 2010-03-05 | 박이근 | The spike expansion pack multistage with anchor using pack and the constructing method thereof |
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| CN206784377U (en) * | 2017-06-02 | 2017-12-22 | 安徽理工大学 | It is a kind of into disc tool and with the polydisc soil anchor prepared into disc tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111172994A (en) * | 2019-12-31 | 2020-05-19 | 甘肃建投建设有限公司 | Foundation pit supporting structure based on high-pressure jet grouting pile |
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|---|---|
| CN107059861B (en) | 2023-09-29 |
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