CN202577292U - Anchor pulling structure of foundation pit supporting of recyclable anchor bars - Google Patents
Anchor pulling structure of foundation pit supporting of recyclable anchor bars Download PDFInfo
- Publication number
- CN202577292U CN202577292U CN 201220214550 CN201220214550U CN202577292U CN 202577292 U CN202577292 U CN 202577292U CN 201220214550 CN201220214550 CN 201220214550 CN 201220214550 U CN201220214550 U CN 201220214550U CN 202577292 U CN202577292 U CN 202577292U
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- China
- Prior art keywords
- dowel
- foundation pit
- anchor
- recyclable
- pit supporting
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Abstract
The utility model provides an anchor pulling structure of foundation pit supporting of recyclable anchor bars. The most inner end portions of anchoring parts form arc-shaped end portions, wherein the most inner end portions of the anchoring parts enter into soil mass. The anchor bars bypass the arc-shaped end portions of the anchoring parts, so that when the anchor bars move or slide through the arc-shaped end portions, resistance is greatly reduced. Meanwhile, a part of one end of each anchor bar is exposed outside foundation pit vertical enclosing bodies and stretched outwards, the exposure parts enable traction equipment to pull out the anchor bars conveniently, so that recycling efficiency of anchor bar recycling is high, and recycling cost is lowered. Besides, the purposes of construction period shortening and construction cost reduction are achieved.
Description
Technical field
The utility model relates to technical field of civil engineering, particularly the anchor structure of pattern foundation pit supporting structure.
Background technology
In foundation pit supporting construction; Adopt anchor structure to have many advantages, but the muscle body of these outer anchors all is arranged in the soil body in the foundation ditch outside, after base pit engineering is accomplished; Their existence; To form underground obstacle, this brings difficulty for foundation ditch newly-built underground structure, the outside or structure, therefore can be in time after base pit engineering is accomplished with outside the dowel body that draws to reclaim or remove be very necessary.
The technology and the method that relate to the dowel recovery at present are many, mainly are the recovery methods that is used for the tunnel support anchor pole in mine, but less to the dowel recovery technology and the method for soft soil foundation pit.Existing pattern foundation pit supporting structure dowel recovery technology is still immature, shows that the rate of recovery is not high, and the supporting distortion is bigger, and anchored force is concentrated and be less, and organic efficiency is low, and cost recovery is high.For 20 meters long dowels, reclaim by present recovery method, need the time more than 5 hours, and the recovery operation face is had higher requirements, these have all limited the popularization and the application of dowel recovery technology.Many anchoring support structures that need recovery to use have to use instead other interior support supporting and protection structure, thereby the application of anchoring support structure is restricted.We can say create a kind of can reclaim fully and efficiently, the low-cost method that reclaims dowel will have very high using value, also have important social benefit and economic benefit.
The utility model content
The utility model technical problem to be solved is to provide anchor structure and the method for the underground dowel of high efficiente callback of the pattern foundation pit supporting structure of recyclable dowel.Shortcoming such as overcome that existing pattern foundation pit supporting structure draws the dowel rate of recovery of dowel supporting low, cost is high at home and abroad, the supporting distortion is big, anchored force is low, provide a kind of can the underground dowel of high efficiente callback method.
In order to solve the problems of the technologies described above; The anchor structure of the pattern foundation pit supporting structure of the recyclable dowel that provides of the utility model; Wherein, Anchoring body comprises an anchoring piece and some dowels, and curved end is arranged in the end of the inner end of the entering soil body of said anchoring piece, and said dowel is on the surface of said anchoring piece and walk around the said curved end of said anchoring piece; The part of the arbitrary end of said dowel is outer to be exposed at the vertical fender body of foundation ditch and protruding, and said exposed parts can be used for being connected on the pulling equipment so that pull it.
There are not bonding or part bonding between said dowel and the said anchoring body.
Adopt slider to separate between said dowel and the said anchoring body.
Said dowel is any in steel strand, wire rope, the reinforcing bar.
Said curved end and side form rounding off.
Said curved end is semicircle.
Said curved end is one section arc.
A hook-type is arranged in the end of said exposed parts, so that the suspension hook of said pulling equipment can hook said hook-type easily.
The method of the underground dowel of the above-mentioned anchor structure of a kind of high efficiente callback, it may further comprise the steps:
Curved end is arranged in the end of the inner end of the entering soil body of the anchoring body of the pattern foundation pit supporting structure of recyclable dowel;
Said dowel is on the surface of said anchoring piece and walk around the said curved end of said anchoring piece;
Be exposed at the vertical fender body of foundation ditch and protruding with the part of an end of said dowel is outer;
Pulling equipment is installed near foundation ditch;
Be fixedly linked with said exposed parts said dowel said pulling equipment;
Starting said pulling equipment will pull out with its fixing said dowel;
Repeat to be fixedly linked with said exposed parts said dowel and to start said pulling equipment all said dowels are pulled out with said pulling equipment.
Further, installation and guide device on foundation pit walls, and the said exposed parts of said dowel is walked around guiding device be connected on the pulling equipment.
Concrete, said guiding device is omnibearing directive wheel, the said exposed parts of said dowel is walked around said directive wheel and is connected on the pulling equipment.
The anchor structure of the pattern foundation pit supporting structure of the recyclable dowel that provides of the utility model and the method for the underground dowel of high efficiente callback are arranged to curved end because said anchoring piece gets into the end of managing end most of the soil body; Said dowel is walked around the said curved end of said anchoring piece; Like this; Said dowel from this curved end move or slip over the time resistance reduce greatly; Resistance is little certainly for the revolution form, and the part of an end of said dowel is outer simultaneously is exposed at foundation ditch vertical side walls fender body and protruding, and this exposed parts is convenient to pulling equipment and dowel is pulled out; The organic efficiency that make to reclaim dowel is high, cost recovery also just reduces, and has reached the reduction of erection time, has reduced the purpose of construction costs.
Description of drawings
Specify the utility model below in conjunction with the accompanying drawing and the specific embodiment;
Fig. 1 is that the underground dowel of the rotary pulling equipment of the described employing of the utility model reclaims sketch map.
Fig. 2 is that the underground dowel of the telescopic pulling equipment of the described employing of the utility model reclaims sketch map.
Fig. 3 reclaims the partial enlarged drawing at connected node place for dowel.
Fig. 4 is the amplification of the anchor structure of the utility model and the sketch map that dowel is drawn out.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding that the embodiment to the utility model describes in detail below in conjunction with accompanying drawing with effect.
Referring to Fig. 1 and Fig. 4, the anchoring body of pattern foundation pit supporting structure adopts following method to form:
The first step: adopt the rotary jet stirring method to form a rotary jet stirring pile body 200;
Second step: with installing dowel 1 on the anchoring piece 2;
The 3rd step: wear with the churning drilling rod and to hang up anchoring piece 2, anchoring piece 2 and dowel 1 are brought in the rotary jet stirring pile body, while gunite or add reinforcing agent again.
The 4th step: dowel 2 and hat beam 3 or waist rail 4 are linked together after through the ground tackle tensioning fixation.
Referring to Fig. 4, the anchoring body of the pattern foundation pit supporting structure of the recyclable dowel that the utility model provides comprises an anchoring piece 2 and some dowels 1.Dowel 1 is installed in and is combined into the anchoring body that an anchored force is disperseed on the anchoring piece 2, is controlled in order to make the adhesion stress between dowel 1 and the anchoring piece 2, and dowel 1 can scribble anti-lubricating oil or the surface puts a sheath.Dowel 1 is installed in the end 21 of an end (being right-hand member among Fig. 4) of the soil body 100 of anchoring piece 2 and is arranged to arc; Dowel 1 is the surperficial of anchoring piece 2 and walk around anchoring piece 2 curved ends 21; The part 11 of one end A of dowel 1 is outer to be exposed at the vertical side walls fender body 400 of foundation ditch 500 and protruding, and exposed parts 11 can be used for being connected on the pulling equipment so that it is pulled out (following will the description) by the direction of arrow among the figure.The length L of above-mentioned exposed parts 11 is at least 10cm, can be 100CM length usually.In the present embodiment, being arranged to nothing between dowel 1 and the anchoring body bonds or only partly bonds.What is called does not have bonding, is exactly whole oilings or similar coatings on dowel 1, just bonds fully between dowel 1 and the anchoring body like this.So-called part bonding is exactly in dowel 1 upper part oiling or similar coatings, just has the part bonding like this between dowel 1 and the anchoring body, so that when pulling dowel 1, be prone to unclamp or break off.Simultaneously, can adopt slider to separate between dowel 1 and the anchoring body.This slider adopts for example skid resistant course or sheath, so that dowel 1 can be controlled.This separating can reduce the bonding between dowel 1 and the anchoring body 2 greatly, also reduced the frictional force that dowel 1 slides from anchoring body 2 when extracting out simultaneously, improved the extraction benefit.
Dowel 1 can adopt steel strand, wire rope or reinforcing bar.Curved end 21 can be semicircle or one section arc or other crooked smooth segmental arc.
In addition, the junction E of curved end 21 and side is on anchoring piece 2, and curved end 21 has formed rounding off with the junction E of side; Like this; When dowel 1 needed to extract out, dowel 1 was easy to slip over from this junction, can not produce too big frictional resistance; Also further improve the speed that dowel 1 is extracted out, practiced thrift the time.
Simultaneously, the end A of exposed parts 11 is arranged to a hook-type,, has improved operating efficiency greatly so that the suspension hook of pulling equipment can hook this hook-type easily.
Certainly, to one skilled in the art, the part of arbitrary end of dowel 1 ends A, B can be exposed at the vertical fender body of foundation ditch outward and be protruding.
Fig. 1 and Fig. 3 have shown the method and the process thereof of underground dowel of the described anchor structure of a kind of high efficiente callback figure of the utility model.In anchor structure, the exposed parts 11 of dowel 1 links to each other with hat beam 3 or waist rail 4, through the ground tackle tensioning fixation, to reach the requirement of pattern foundation pit supporting structure.After base pit engineering is accomplished, when needing to reclaim dowel 1, through removing ground tackle, exposed parts 11 and the hat beam 3 or waist rail 4 of dowel 1 unclamped.Rotary pulling equipment 7 is installed near the ground foundation ditch 500, a guiding device is installed on foundation ditch 500 sidewall fender bodies 400, in this embodiment, this guiding device adopts comprehensive directive wheel 6.The wire rope 9 of rotary pulling equipment 7 is passed comprehensive directive wheel 6 to be fixed on the exposed parts 11 of dowel 1 on the anchor clamps 8 of wire rope 9; If there is not special fixture to have only simple hook, can this hook directly be hooked the special hook portion that is provided with of end A of exposed parts 11, start rotary pulling equipment 7 then; Drive haulage cable 9; Pulling dowel 1 lets dowel 1 from the soil body 100 of supporting, pull out, thereby realizes the recovery fully of dowel 1.Reach the purpose of the low-carbon environment-friendly of foundation ditch 500 supportings.Repeat above-mentioned steps, the dowel of being driven underground 1 is reclaimed fully.
Above-mentioned comprehensive directive wheel 6 is the fixed pulleys that can 360 degree rotate around institute's dowel that will reclaim 1; It is installed on the sidewall fender body 400 of foundation ditch 500; Can certainly adopt other comprehensive guiding device so that directly fixed easily at the dowel of diverse location 1 and need not adjust pulling equipment 7 or its wire rope 9, further improve organic efficiency with dowel 1.
In Fig. 1 and Fig. 3, comprehensive directive wheel 6 is anchor clamps 8 extensions at wire rope 9, certainly, also can be along with the variation of the installation site of comprehensive directive wheel 6, wire rope 9 passes wire rope 9 stationary fixture 8 more earlier.Like this, the height that can regulate comprehensive directive wheel 6 makes the installation site of comprehensive directive wheel 6 can more change adjustment.
Referring to Fig. 2, Fig. 2 is that pulling equipment 7 is different with the difference of Fig. 1, and pulling equipment can be telescopic pulling equipment 71 among Fig. 2; Like similar equipment such as hydraulic haulage equipment, when carrying out the recovery of dowel, telescopic pulling equipment 71 substep tractives; Behind flexible stroke of tractive; Discharge dowel, drop to flexible bottom of travel, carry out tractive next time.Dowel 1 can be connected on the telescopic pulling equipment 71 through wire rope, also can be directly connected on the pulling equipment 71 without wire rope.
More than show and described the advantage of basic principle, principal character and the utility model of the utility model.The technician of the industry should understand; The utility model does not receive the restriction of above-mentioned instance; The principle of describing in above-mentioned instance and the manual that the utility model just is described; The utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (9)
1. the anchor structure of the pattern foundation pit supporting structure of a recyclable dowel; Wherein, anchoring body comprises an anchoring piece and some dowels, it is characterized in that; Curved end is arranged in the end of the inner end of the entering foundation ditch of said anchoring piece; Said dowel is on the surface of said anchoring piece and walk around the said curved end of said anchoring piece, and the part of the arbitrary end of said dowel is outer to be exposed at the vertical fender body of foundation ditch and protruding, and said exposed parts can be used for being connected on the pulling equipment so that pull it.
2. the anchor structure of the pattern foundation pit supporting structure of recyclable dowel as claimed in claim 1 is characterized in that, does not have bonding between said dowel and the said anchoring body.
3. the anchor structure of the pattern foundation pit supporting structure of recyclable dowel as claimed in claim 1 is characterized in that, part bonding between said dowel and the said anchoring body.
4. the anchor structure of the pattern foundation pit supporting structure of recyclable dowel as claimed in claim 1 is characterized in that, adopts slider to separate between said dowel and the said anchoring body.
5. the anchor structure of the pattern foundation pit supporting structure of recyclable dowel as claimed in claim 1 is characterized in that, said dowel is any in steel strand, wire rope, the reinforcing bar.
6. the anchor structure of the pattern foundation pit supporting structure of recyclable dowel as claimed in claim 1 is characterized in that, the curved end of said dowel and side form rounding off.
7. like the anchor structure of the pattern foundation pit supporting structure of claim 1 or 6 arbitrary described recyclable dowels, it is characterized in that said curved end is semicircle.
8. like the anchor structure of the pattern foundation pit supporting structure of claim 1 or 6 arbitrary described recyclable dowels, it is characterized in that said curved end is one section arc.
9. like the anchor structure of the pattern foundation pit supporting structure of claim 1 or 6 arbitrary described recyclable dowels, it is characterized in that a hook-type is arranged in the end of said exposed parts, so that the suspension hook of said pulling equipment can hook said hook-type easily.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220214550 CN202577292U (en) | 2012-05-11 | 2012-05-11 | Anchor pulling structure of foundation pit supporting of recyclable anchor bars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220214550 CN202577292U (en) | 2012-05-11 | 2012-05-11 | Anchor pulling structure of foundation pit supporting of recyclable anchor bars |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202577292U true CN202577292U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220214550 Expired - Lifetime CN202577292U (en) | 2012-05-11 | 2012-05-11 | Anchor pulling structure of foundation pit supporting of recyclable anchor bars |
Country Status (1)
| Country | Link |
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| CN (1) | CN202577292U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635115A (en) * | 2012-05-11 | 2012-08-15 | 上海强劲地基工程股份有限公司 | Anchoring structure of foundation pit support capable of recycling anchor bars, and method for efficiently recycling anchor bars |
-
2012
- 2012-05-11 CN CN 201220214550 patent/CN202577292U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635115A (en) * | 2012-05-11 | 2012-08-15 | 上海强劲地基工程股份有限公司 | Anchoring structure of foundation pit support capable of recycling anchor bars, and method for efficiently recycling anchor bars |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |