CN204551464U - Enlarged footing bellows anchor pole - Google Patents
Enlarged footing bellows anchor pole Download PDFInfo
- Publication number
- CN204551464U CN204551464U CN201520057302.2U CN201520057302U CN204551464U CN 204551464 U CN204551464 U CN 204551464U CN 201520057302 U CN201520057302 U CN 201520057302U CN 204551464 U CN204551464 U CN 204551464U
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- finish rolling
- deformed bar
- rolling deformed
- bellows
- anchor pole
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Abstract
The utility model discloses a kind of enlarged footing bellows anchor pole, comprise finish rolling deformed bar, bellows expansion extruding expanding body, sleeve pipe, finish rolling deformed bar stretches into bellows expansion extruding expanding body, and its bottom in bellows expansion extruding expanding body is provided with grouting material back cover, it is provided with stop grouting plug in the entrance of bellows expansion extruding expanding body, finish rolling deformed bar top suit is fixed with backing plate, finish rolling deformed bar is set with prestressing nut, and backing plate end face is fixed with the taper chapeau de fer with preformed hole and taper chapeau de fer covers the finish rolling deformed bar being set with prestressing nut.The beneficial effects of the utility model be can in comparatively wide region and object of construction production the great conventional anchor of the current use amount of Some substitute.
Description
Technical field
The utility model relates to a kind of enlarged footing bellows anchor pole.
Background technology
Along with the constantly soaring of land price and the surge of automobile quantity, city is in the extensive development underground space.Underground building reaches multilayer, and the safety problem of underground construction is just more and more important.Conventional anchor has been widely used in the engineerings such as water conservancy and hydropower, work China Democratic National Construction Association, traffic and municipal administration; because it is tension type anchor pole; when especially applying in soil layer, there is the stressed rear reinforcing bar easy to crack of cement topping and suffer the problems such as burn into anchored force is little, quality is wayward.
Present Domestic adopts mostly to building foundation anti-floating: 1) Anti-floating reinforcing steel bar cast-in-place concrete pile; 2) anti-float anchor rod (tension type).Wherein anti-floating pile belongs to Normal practice, technical maturity, has experience to follow, but due to material employing reinforcing cage+concrete, investment is comparatively large, and concrete tension poor performance.And the uplift resistance that anti-float anchor rod (tension type) provides usually is less, for the engineering that Anti-floating design bearing capacity is higher, traditional anchor pole can not meet engineering construction needs effectively, and the grouting body of fixed end easily occurs tensile crack, and antiseptic property is poor.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of enlarged footing bellows anchor pole.
The utility model is achieved through the following technical solutions.
A kind of enlarged footing bellows anchor pole, comprise finish rolling deformed bar, bellows expansion extruding expanding body, sleeve pipe, above-mentioned finish rolling deformed bar stretches into above-mentioned bellows expansion extruding expanding body, and its bottom in above-mentioned bellows expansion extruding expanding body is provided with grouting material back cover, it is provided with stop grouting plug in the entrance of above-mentioned bellows expansion extruding expanding body, above-mentioned finish rolling deformed bar top suit is fixed with backing plate, above-mentioned finish rolling deformed bar is set with prestressing nut and above-mentioned prestressing nut compresses above-mentioned backing plate end face, above-mentioned backing plate end face is fixed with the taper chapeau de fer with preformed hole and above-mentioned taper chapeau de fer covers the finish rolling deformed bar being set with prestressing nut, above-mentioned casing pipe sleeve is contained in above-mentioned finish rolling deformed bar and from above-mentioned backing plate one segment distance.
Further, sealing adhesive tape is respectively provided with at above-mentioned finish rolling deformed bar being positioned at below above-mentioned backing plate and being positioned at above above-mentioned cannula tip.
Further, above-mentioned finish rolling deformed bar is provided with spiral reinforcement a section of not being set with above-mentioned sleeve pipe.
Further, above-mentioned sleeve pipe is provided with medium-height trestle.
Further, above-mentioned finish rolling deformed bar is provided with multiple body of rod locator, and is provided with a body of rod locator at spacing intervals.
The beneficial effects of the utility model:
Traditional anchor pole relies on the frictional force of anchoring body and surrounding soil to obtain anchorage force, and the end that the primary load of enlarged footing bellows anchor pole comes from the anchoring of expansion body holds effect, the advance of its technology is mainly reflected in the closed high-pressure slip-casting technique of unique utricule, after first forming expansion body with high-pressure rotary-spray, again by the predeterminated position in assembling enlarging anchor rod implant bore, by the separate type Grouting Pipe preset, the cement paste of certain proportioning is injected in assembling pouch, along with the injection of slurry, bellows expansion extruding expanding body in boring expands to the shape preset gradually, utricule surrounding soil and slurries are gradually by densification simultaneously, with the raising of the bulbs of pressure, the soil body compacted district scope constantly expands, the final influence basin presetting compacted district can reach the double-wide of diameter after balloon inflation.After compacted, according to the principle of correspondence of the density-effective stress-shear strength of the soil body, the intensity of utricule surrounding soil improves, thus under the end of expansive cement mortar extruding expanding body holds effect, greatly improve the ultimate load of single anchor, the length demand fulfillment of expansion extruding expanding body can to the effectively compacted requirement of the soil body.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model enlarged footing bellows anchor pole;
Fig. 2 is the close-up schematic view of Figure 1A part;
Fig. 3 is that finish rolling deformed bar establishes the schematic diagram with body of rod locator;
Fig. 4 is the schematic diagram after the utility model enlarged footing bellows rockbolt installation.
Detailed description of the invention
According to drawings and embodiments the utility model is described in further detail below.
The utility model, a kind of enlarged footing bellows anchor pole, comprise finish rolling deformed bar 1, bellows expansion extruding expanding body 2, sleeve pipe 12, finish rolling deformed bar 1 stretches into bellows expansion extruding expanding body 2, and its bottom in bellows expansion extruding expanding body 2 is provided with grouting material back cover 3, it is provided with stop grouting plug 4 in the entrance of bellows expansion extruding expanding body 2, finish rolling deformed bar 1 top suit is fixed with backing plate 5, finish rolling deformed bar 1 is set with prestressing nut 6 and prestressing nut 6 compresses backing plate 5 end face, backing plate 5 end face is fixed with the taper chapeau de fer 7 with preformed hole and taper chapeau de fer 7 covers the finish rolling deformed bar 1 being set with prestressing nut 6, sleeve pipe 12 is sleeved on finish rolling deformed bar 1 and from backing plate 5 one segment distance.
In the implementation case, be respectively provided with sealing adhesive tape 8 at finish rolling deformed bar 1 being positioned at below backing plate 5 and being positioned at above sleeve pipe 12 top, finish rolling deformed bar 1 is provided with spiral reinforcement 9 a section of not overlapping tubing 12.
Sleeve pipe 12 is provided with medium-height trestle 10.Finish rolling deformed bar 1 is provided with multiple body of rod locator 11, and is provided with a body of rod locator 11 at spacing intervals.
Present Domestic adopts mostly to building foundation anti-floating: 1) Anti-floating reinforcing steel bar cast-in-place concrete pile; 2) anti-float anchor rod (tension type).Wherein anti-floating pile belongs to Normal practice, technical maturity, has experience to follow, but due to material employing reinforcing cage+concrete, investment is comparatively large, and concrete tension poor performance.And the uplift resistance that anti-float anchor rod (tension type) provides usually is less, for the engineering that Anti-floating design bearing capacity is higher, traditional anchor pole can not meet engineering construction needs effectively, and the grouting body of fixed end easily occurs tensile crack, and antiseptic property is poor.
Experiment and the production practices of enlarged footing bellows anchor pole prove, this technology creates good Social benefit and economic benefit.
Social benefit: promote construction environmental protection, reduces waste pulp and the discharge of waste residue soil; Save constructional materials, promote resources conservation; The building line eliminating deep foundation ditch and underground space engineering takes up an area outward, and reduce obstacle and the hidden danger of future urban development, promote social harmony development.
Economic benefit: can in comparatively wide region and object of construction production the great conventional anchor of the current use amount of Some substitute; Higher single anchor bearing capacity, better corrosion resistance can be obtained based on technical advantage; Due to its material province, the duration is short, bearing capacity is high, can reduce engineering cost, and its direct cost can reduce 10-15% than conventional anchor.
The utility model, traditional anchor pole relies on the frictional force of anchoring body and surrounding soil to obtain anchorage force, and the end that the primary load of enlarged footing bellows anchor pole comes from the anchoring of expansion body holds effect, the advance of its technology is mainly reflected in the closed high-pressure slip-casting technique of unique utricule, after first forming expansion body with high-pressure rotary-spray, again by the predeterminated position in assembling enlarging anchor rod implant bore, by the separate type Grouting Pipe preset, the cement paste of certain proportioning is injected in assembling pouch, along with the injection of slurry, bellows expansion extruding expanding body in boring expands to the shape preset gradually, utricule surrounding soil and slurries are gradually by densification simultaneously, with the raising of the bulbs of pressure, the soil body compacted district scope constantly expands, the final influence basin presetting compacted district can reach the double-wide of diameter after balloon inflation.After compacted, according to the principle of correspondence of the density-effective stress-shear strength of the soil body, the intensity of utricule surrounding soil improves, thus under the end of expansive cement mortar extruding expanding body holds effect, greatly improve the ultimate load of single anchor, the length demand fulfillment of expansion extruding expanding body can to the effectively compacted requirement of the soil body.
Embodiment, only for technical conceive of the present utility model and feature are described, its object is to allow the personage being familiar with this art can understand the utility model content and be implemented, can not limit protection domain of the present utility model with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed in protection domain of the present utility model.
Claims (5)
1. an enlarged footing bellows anchor pole, it is characterized in that, comprise finish rolling deformed bar, bellows expansion extruding expanding body, sleeve pipe, described finish rolling deformed bar stretches into described bellows expansion extruding expanding body, and its bottom in described bellows expansion extruding expanding body is provided with grouting material back cover, it is provided with stop grouting plug in the entrance of described bellows expansion extruding expanding body, described finish rolling deformed bar top suit is fixed with backing plate, described finish rolling deformed bar is set with prestressing nut and described prestressing nut compresses described backing plate end face, described backing plate end face is fixed with the taper chapeau de fer with preformed hole and described taper chapeau de fer covers the finish rolling deformed bar being set with prestressing nut, described casing pipe sleeve is contained in described finish rolling deformed bar and from described backing plate one segment distance.
2. enlarged footing bellows anchor pole according to claim 1, is characterized in that, is respectively provided with sealing adhesive tape at described finish rolling deformed bar being positioned at below described backing plate and being positioned at above described cannula tip.
3. enlarged footing bellows anchor pole according to claim 1, is characterized in that, described finish rolling deformed bar is provided with spiral reinforcement a section of not being set with described sleeve pipe.
4. enlarged footing bellows anchor pole according to claim 1, it is characterized in that, described sleeve pipe is provided with medium-height trestle.
5. enlarged footing bellows anchor pole according to claim 1, is characterized in that, described finish rolling deformed bar is provided with multiple body of rod locator, and is provided with a body of rod locator at spacing intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520057302.2U CN204551464U (en) | 2015-01-27 | 2015-01-27 | Enlarged footing bellows anchor pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520057302.2U CN204551464U (en) | 2015-01-27 | 2015-01-27 | Enlarged footing bellows anchor pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204551464U true CN204551464U (en) | 2015-08-12 |
Family
ID=53826597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520057302.2U Expired - Fee Related CN204551464U (en) | 2015-01-27 | 2015-01-27 | Enlarged footing bellows anchor pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204551464U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594348A (en) * | 2015-01-27 | 2015-05-06 | 安徽同济建设集团有限责任公司 | Expanded head capsule type anchor rod and construction method thereof |
| CN110359853A (en) * | 2019-07-13 | 2019-10-22 | 江龙 | Adaptive half soil compaction is bored and its foundation pile bore forming method |
-
2015
- 2015-01-27 CN CN201520057302.2U patent/CN204551464U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594348A (en) * | 2015-01-27 | 2015-05-06 | 安徽同济建设集团有限责任公司 | Expanded head capsule type anchor rod and construction method thereof |
| CN110359853A (en) * | 2019-07-13 | 2019-10-22 | 江龙 | Adaptive half soil compaction is bored and its foundation pile bore forming method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20190127 |