CN206829130U - A kind of tensioning umbrella anchored end - Google Patents
A kind of tensioning umbrella anchored end Download PDFInfo
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- CN206829130U CN206829130U CN201720679059.7U CN201720679059U CN206829130U CN 206829130 U CN206829130 U CN 206829130U CN 201720679059 U CN201720679059 U CN 201720679059U CN 206829130 U CN206829130 U CN 206829130U
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- steel pipe
- guide plate
- anchor
- ring flange
- plate
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Abstract
Building foundation pit and slope retaining technical field are the utility model is related to, especially a kind of tensioning umbrella anchored end, it is characterised in that：The anchored end comprises at least steel pipe, guide plate, removable ring flange, anchor plate and two pieces of limiting plates, wherein described guide plate and the removable ring flange are sleeved on the periphery of the steel pipe and can slided on the steel pipe, the inclined outwards shape arrangement of the anchor plate, its one end is hinged with the removable ring flange, its plate body is welded and fixed with the guide plate, and two pieces of limiting plates are respectively fixedly disposed at the periphery of the steel pipe and are respectively used to spacing to the guide plate and the removable ring flange progress；Anchor cable hole is offered respectively on the guide plate and the removable ring flange.The utility model has the advantages that：Entirety can be formed with the stable soil body in deep, provide larger withdrawal resistance by the effect between anchor plate and steady soil, be remarkably improved the stability of foundation ditch and side slope.
Description
Technical field
Building foundation pit and slope retaining technical field are the utility model is related to, especially a kind of tensioning umbrella anchored end.
Background technology
In subway open-cut foundation ditch, highway and Along Railway slope protection works and China Democratic National Construction Association's foundation ditch, it is often necessary to which free face is carried on the back
The unstable soil body carries out supporting afterwards, to prevent foundation ditch and slope deforming, unstability, landslide.Anchoring support system is foundation ditch and side
One of new technique not only economic but also practical, is made up of Retaining Structures and anchor cable system two parts in the engineering of slope.Anchoring support
System utilizes anchor cable（Bar）The soil pressure that soil-baffling structure at free face is born is delivered in the form of pulling force in the stable soil body in deep
Anchoring section, then the pulling force is delivered to by the stable soil body in anchor hole periphery by the interaction between anchoring section and the stable soil body.
Anchor cable（Bar）Pattern is various, is divided according to the mode of action between anchoring section pattern and anchoring section and the stable soil body main
Including three kinds of cylindrical type, continuous ball-shape and anchored end expansion type.Wherein anchored end expansion type anchor cable（Bar）Anchoring section with it is steady
Effect between soil layer is determined by the adhesion strength between anchoring body and the soil body and is expanded the end of soil layer at body and is held intensity two parts and form, because
The anchor cable of this type（Bar）Higher withdrawal resistance can be provided, the quality of anchoring support system is significantly improved, have preferably
Economic benefit.
Deeply, there is blasting procedure and water jet method in succession constantly in research to anchored end expansion type anchor pole both at home and abroad
Non-mechanical reaming method and pressure to represent open the mechanical reaming method of formula mechanical hole reaming method and PCBA reamings earth anchor as representative.
Above reaming engineering method is noteworthy characterized by：Reaming forms later anchoring section slurries and bonds the anchored end to form expansion with dowel, carries
For anchor force.But these methods need to apply special broaching equipment or material, and equipment price and operating expenses are expensive, construction technology
Complexity, large volume reaming is very difficult, and the raising of anchor force is limited.Therefore need badly and study new anchored end expansion type anchor pole,
Ensure that anchoring support system can provide larger withdrawal resistance, while should also take into account the convenience and operability of construction.
The content of the invention
The purpose of this utility model is according to above-mentioned the deficiencies in the prior art, there is provided a kind of tensioning umbrella anchored end,
During drilling can with drilling rod to soil layer deep move, in place after can be by pulling anchor cable to make the anchor plate in anchored end to week
The stable soil body in side expansion inlay bur hole depth portion, so as to improve the withdrawal resistance of support system and stability.
The utility model purpose is realized and completed by following technical scheme：
A kind of tensioning umbrella anchored end, it is characterised in that：The anchored end comprises at least steel pipe, guide plate, removable method
Blue disk, anchor plate and two pieces of limiting plates, wherein the guide plate and the removable ring flange are sleeved on the periphery of the steel pipe
And can be slided on the steel pipe, the anchor plate inclined outwards shape arrangement, its one end are hinged with the removable ring flange,
Its plate body is welded and fixed with the guide plate, and two pieces of limiting plates are respectively fixedly disposed at the periphery of the steel pipe and used respectively
It is spacing in being carried out to the guide plate and the removable ring flange；On the guide plate and the removable ring flange respectively
Offer anchor cable hole.
Aerofoil profile drilling piece is fixedly installed in the bottom periphery of the steel pipe, the aerofoil profile creeps into piece with the uniform cloth of symmetry shape
Put the bottom periphery in the steel pipe.
The anchor plate is evenly arranged in the periphery of the steel pipe with symmetry shape.
One end of the steel pipe is provided with drilling rod connection buckle.
The utility model has the advantages that：Using described anchored end and the anchoring system being made up of it（Main member has：Newly
Type tensioning umbrella anchored end, anchor cable, soil-baffling structure, waist rail, backing plate and anchor head）Carry out foundation ditch and slope retaining, the anchor of anchored end
Fixed board tension is opened and is embedded in steady soil, and entirety is formed with the stable soil body in deep, anchoring section except can utilize anchoring section with
Interfacial treatment between body layer is provided outside withdrawal resistance, also provides larger resist by the effect between anchor plate and steady soil
Pull out force, it is remarkably improved the stability of foundation ditch and side slope；The utility model drilling, slip casting and once completed into anchor, technique is simple,
Cheap, construct convenient, the risk and expense of reduction foundation ditch and slope project.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model original state；
Fig. 2 be in Fig. 1 A-A to sectional view；
Fig. 3 is B-B direction sectional view in Fig. 1；
Fig. 4 is the structural representation of the utility model expansion state；
Fig. 5 is the structural representation that aerofoil profile creeps into piece in the utility model；
Fig. 6 is the structural representation that the utility model connects anchor cable system；
Fig. 7 is the utility model use state diagram.
Embodiment
The utility model feature and other correlated characteristics are described in further detail by embodiment below in conjunction with accompanying drawing,
In order to the understanding of technical staff of the same trade：
As shown in figs. 1-7, label 1-22 is expressed as in figure：Drilling rod connection buckle 1, limiting plate 2, pad 3, guiding
Plate 4, anchor cable hole 5, anchor plate 6, limiting plate 7, thin-wall steel tube 8, fixing pin 9, removable ring flange 10, anchor cable hole 11, aerofoil profile
Creep into piece 12, anchor head 13, backing plate 14, anchor cable 15, tensioning umbrella anchored end 16, steady soil 17, unstable soil layer 18, earth-retaining knot
Structure 19, free section of anchor cable 20, anchorage cable anchoring section 21, waist rail 22.
Embodiment：As shown in figure 1, the tensioning umbrella anchored end thin-wall steel tube 8 in the present embodiment, on the top of thin-wall steel tube 8
Portion is provided with the drilling rod connection buckle 1 for being connected to a fixed with drilling rod so that tensioning umbrella anchored end can be with drilling rod together
Creep into and moved to soil body deep layer.With reference to shown in Fig. 1 and Fig. 3, the bottom periphery of thin-wall steel tube 8 is provided with three pieces of aerofoil profile drillings
Piece 12, three pieces of aerofoil profiles drilling pieces 12 are centrosymmetric arrangement centered on the center of circle of thin-wall steel tube 8, during ensureing drilling soil layer
Uniform force.As shown in figure 5, aerofoil profile drilling piece 12 is swallow-tail form deformed steel flats, one side surface is inclined-plane, and the inclined-plane causes three
Block aerofoil profile drilling piece 12 may make up cone tip shape, consequently facilitating thin-wall steel tube 8 creeps into underground layer.
As shown in figure 1, along the body of thin-wall steel tube 8 bottom of by direction is pushed up, its body periphery is provided with removable ring flange
10 and guide plate 4, guide plate 4 and removable ring flange 10 can be slided up and down respectively on the body of thin-wall steel tube 8.Leading
The periphery of plate 4 is provided with four pieces of anchor plates 6, as shown in Fig. 2 during four pieces of anchor plates 6 are in centered on the center of circle of thin-wall steel tube 8
The heart is arranged symmetrically.One end of four pieces of anchor plates 6 is hinged on removable ring flange 10 by fixing pin 9 respectively, four pieces of grapplings
The plate body of plate 6 is fixed with position temporary weld of the guide plate 4 in pad 3 respectively.Anchor cable hole 5 is offered on guide plate 4,
Anchor cable hole 11 is offered on removable ring flange 10, anchor cable hole 5 and anchor cable hole 11 are used to be connected with anchor cable.
As shown in figure 1, being provided with limiting plate 7 in the top of removable ring flange 10, set in the top of guide plate 4 limited
The upward sliding progress that position plate 2, wherein limiting plate 7 are used for removable ring flange 10 on thin-wall steel tube 8 is spacing, and limiting plate
On the one hand the upward sliding progress being used for guide plate 4 on thin-wall steel tube 8 is spacing, is on the other hand used to push up in drilling process
Pushing away guide plate 4 makes anchored end to be rotationally advancing in the soil body.
With reference to shown in Fig. 4, Fig. 5 and Fig. 6, anchor cable by anchor cable hole 5 and anchor cable hole 11 respectively with guide plate 4 and removable method
Blue disk 10 is connected.Thin-wall steel tube 8 is connected by drilling rod connection buckle 1 with drilling rod.In drilling process, due to limiting plate 2
Effect, drilling rod drive tensioning umbrella anchored end 16 and anchor cable 15 to be rotationally advancing together in the soil body, and the pressure slurries in drilling rod lead to
Cross in the lower end injection hole of thin-wall steel tube 8, wash away and replace the soil body residue formed in drilling process, and the shape around drilling
Collapse hole is prevented into protective layer.When tensioning umbrella anchored end 16 is crept into projected depth, before extracting drilling rod, tense anchor cable 15 and drive
Removable ring flange 10 moves to hole month（Tensioning）, anchor plate 6 can be along the outer rim of guide plate 4 to peripheral expansion（Umbrella）It is embedding
Enter to drill the stable soil body in deep, i.e., original state as shown in Figure 1 is transformed to expansion state as shown in Figure 4；When removable method
Blue disk 10 stops stretch-draw anchor 15 when being moved to limiting plate 7, extracts drilling rod.
Guide plate 4 forms individual components by pad 3, removable ring flange 10 by fixing pin 9 and anchor plate 6,
In drilling rod connection buckle 1, limiting plate 2, limiting plate 7, thin-wall steel tube 8 and aerofoil profile drilling piece 12 with revolution drilling rod rotary drilling soil layer
During, the part will not produce rotation, can only be moved together to soil layer deep with drilling rod under the thrusting action of limiting plate 2
It is dynamic, and drive anchor cable 15 to extend together.To ensure guide plate 4, removable ring flange 10, anchor plate 6 and anchor cable 15 not with thin
Wall steel pipe and aerofoil profile drilling piece 12 rotate, and the middle part opening diameter of guide plate 4 and removable ring flange 10 should be slightly bigger than Steel Thin-Wall
The external diameter of pipe 8, it is generally preferable to be 1-2cm.
With reference to shown in Fig. 6 and Fig. 7, the tensioning umbrella anchored end 16 in the present embodiment when in use, with reference to anchor cable 15, earth-retaining
The components such as structure 19, waist rail 22, backing plate 14 and anchor head 13 form anchoring system.As shown in fig. 7, tensioning umbrella anchored end 16 passes through
Unstable soil layer 18 with holding force in steady soil 17, to ensure the stabilization of anchor force.Soil-baffling structure 19 is arranged on detrimental soil
The periphery of layer 18 to it to carry out supporting.It is connected to a fixed between anchor cable 15 and soil-baffling structure 19 by waist rail 22.Anchor cable 15 exists
It is divided into free section of anchor cable 20, anchorage cable anchoring section 21 in soil layer, wherein free section of anchor cable 20 refers to non-slip casting section, anchorage cable anchoring section
21 refer to slip casting section.
The present embodiment has following construction procedure：
1）According to slope height, formation physical parameters and code requirement, supporting scheme is calculated, determines that single anchor cable system resists
Pull out force, the length of anchoring section 21, the spacing of anchor cable 15 etc..
2）According to design parameter, tensioning umbrella anchored end 16 is made, and be connected with anchor cable 15；
3）Rig is in place, creeps into tensioning umbrella anchored end 16 to projected depth according to the spacing and direction of design, extracts
Before drilling rod, anchor cable 15, the stress destruction of pad 3 between guide plate 4 and anchor plate 6 are tensed, removable ring flange 10 slides up
It is dynamic to cause pin joint of the anchor plate 6 at fixing pin 9 progressively to rotate and along the outer rim of guide plate 4 to peripheral expansion inlay bur
The stable soil body in hole depth portion, so as to improve the withdrawal resistance of support system and stability.The expansion action of anchor plate 6 is until removable method
Blue disk 10 stops when being moved to limiting plate 7.
4）Drilling rod and tensioning umbrella anchored end 16 are disengaged by back-drilling, and extract drilling rod.
5）To the slip casting of anchoring section 21, after middle grout cures hole to be drilled reach design strength, at anchor cable 15 and anchor head 13
Tensioning equipment is connected, and applies pretightning force, and after pretightning force reaches design load, the He of waist rail 22 is installed in the outside of soil-baffling structure 19
Cushion block 14, then anchor head 13 is locked into anchor cable 15 and forms reliable and stable anchoring system.
6）1 is repeated to each anchor cable system in anchoring system）-5）The step of complete the construction of whole anchoring system.
The present embodiment is in the specific implementation：Anchor cable 15 can be steel wire, the steel for connecting anchor head 13 and removable ring flange 10
Twisted wire or glass fiber-reinforced polymer.
In order to ensure being smoothed out for drilling, anchor plate 6 is avoided to have been inserted into the periphery soil body, anchor plate 6 in drilling process
Initial expanded diameter should be less than aerofoil profile drilling piece 12 expanded diameter.
The quantity of anchor plate 6 is chosen as 4-8 pieces, but its distribution should be in equally center centered on the center of circle of thin-wall circular tube 8
It is arranged symmetrically；Similarly, the quantity of anchor cable 15 is 2-4 beams, and the anchor cable hole 5 and anchor cable hole 11 for connecting anchor cable 15 also should be with thin-walleds
It is centrosymmetric and is opened on guide plate 4 and removable ring flange 10 centered on the center of circle of pipe 8.
Although the design to the utility model purpose and embodiment elaborate above example referring to the drawings,
But those skilled in the art will realize that in the case where limiting the precondition of scope without departing from claim, still may be used
To make various modifications and variations to the utility model, therefore do not repeat one by one herein.
Claims (4)
- A kind of 1. tensioning umbrella anchored end, it is characterised in that：The anchored end comprises at least steel pipe, guide plate, removable flange Disk, anchor plate and two pieces of limiting plates, wherein the guide plate and the removable ring flange are sleeved on the periphery of the steel pipe simultaneously It can be slided on the steel pipe, the anchor plate inclined outwards shape arrangement, its one end are hinged with the removable ring flange, its Plate body is welded and fixed with the guide plate, and two pieces of limiting plates are respectively fixedly disposed at the periphery of the steel pipe and are respectively used to The guide plate and the removable ring flange are carried out spacing；Opened respectively on the guide plate and the removable ring flange Provided with anchor cable hole.
- A kind of 2. tensioning umbrella anchored end according to claim 1, it is characterised in that：Consolidate in the bottom periphery of the steel pipe Surely aerofoil profile drilling piece is provided with, the aerofoil profile drilling piece is evenly arranged in the bottom periphery of the steel pipe with symmetry shape.
- A kind of 3. tensioning umbrella anchored end according to claim 1, it is characterised in that：The anchor plate is uniform with symmetry shape It is arranged in the periphery of the steel pipe.
- A kind of 4. tensioning umbrella anchored end according to claim 1, it is characterised in that：It is provided with one end of the steel pipe Drilling rod connection buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720679059.7U CN206829130U (en) | 2017-06-13 | 2017-06-13 | A kind of tensioning umbrella anchored end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720679059.7U CN206829130U (en) | 2017-06-13 | 2017-06-13 | A kind of tensioning umbrella anchored end |
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| Publication Number | Publication Date |
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| CN206829130U true CN206829130U (en) | 2018-01-02 |
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ID=60775667
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720679059.7U Active CN206829130U (en) | 2017-06-13 | 2017-06-13 | A kind of tensioning umbrella anchored end |
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| CN (1) | CN206829130U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047881A (en) * | 2021-05-07 | 2021-06-29 | 南京博联特光电科技有限公司 | GFRP intelligent combined anchor rod suitable for subway tunnel support and construction method |
-
2017
- 2017-06-13 CN CN201720679059.7U patent/CN206829130U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047881A (en) * | 2021-05-07 | 2021-06-29 | 南京博联特光电科技有限公司 | GFRP intelligent combined anchor rod suitable for subway tunnel support and construction method |
| CN113047881B (en) * | 2021-05-07 | 2023-09-26 | 南京博联特光电科技有限公司 | GFRP intelligent combined anchor rod suitable for subway roadway support and construction method |
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