CN201801865U - Combination anchor - Google Patents
Combination anchor Download PDFInfo
- Publication number
- CN201801865U CN201801865U CN2010205463346U CN201020546334U CN201801865U CN 201801865 U CN201801865 U CN 201801865U CN 2010205463346 U CN2010205463346 U CN 2010205463346U CN 201020546334 U CN201020546334 U CN 201020546334U CN 201801865 U CN201801865 U CN 201801865U
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- China
- Prior art keywords
- cement
- soil
- composite bolt
- load transfering
- transfering strip
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Abstract
The utility model relates to geotechnical engineering and in particular to a combination anchor and construction of same so disposed that the combination anchor herein is composed of a concrete anchor body (1), a force transmission belt (2), and a rod body (3), wherein the concrete anchor body (1) directly contacts with soil, the force transmission belt (2) being disposed inside the concrete anchor body (1), the rod body (3) traversing the force transmission belt (2). After the construction of concrete anchor body (1) is completed, injection grouting and perfusion, and other modes can be conducted on the force transmission belt (2) where construction intensity is comparatively high, and then the firm connection between the force transmission belt (2) and the rod body (3) can enable a transmission of the giant anchoring force generated by the concrete anchor body (1). The utility model has the advantages of simple structure, higher anchoring bearing capacity, wide application to soft soil, and less engineering cost.
Description
Technical field
The present invention relates to field of civil engineering, particularly relate to the geotechnical anchor engineering field.
Background technology
Along with engineering construction developing rapidly of underground space development particularly, demand to anchor pole in engineering constructions such as bracing of foundation pit, slope retaining increases day by day, but in soft clay area, because soil strength is low, the side friction of anchor pole is little, and the use of anchor pole is very restricted.The anchor pole that present most widely used anchor pole form is a drilling holes and late grouting, but at present because of reasons such as anchor pole are long, bearing capacity is low, anchor pole has been subjected to considerable restraint in engineering Application for Field such as bracing of foundation pit, slope retainings.The anchor pole form that has occurred inserting in the high-pressure rotary jet grouting pile, cement mixing method in level construction reinforcing bar or steel strand in recent years and formed, but often the reasons such as bond stress deficiency because of cement-soil and reinforcing bar, steel strand cause the anchor pole bearing capacity low, and the time have engineering accident to take place.
The content of invention
The object of the present invention is to provide a kind of Composite Bolt, this Composite Bolt can be given full play to the potentiality of geotechnical body, and huge anchored force is provided, and huge anchored force can be passed to reliably by the object of anchoring, enlarged the range of application of anchor pole, safe and reliable, cost is low.
This Composite Bolt comprises cement-soil anchoring body, load transfering strip, the body of rod three parts composition, and cement-soil anchoring body wherein directly contacts with the soil body, and load transfering strip is positioned at cement-soil anchoring body inside, and the body of rod passes through load transfering strip.
In above-mentioned Composite Bolt, above-mentioned cement-soil anchoring body can be the high-pressure rotary jet grouting pile of constructing in the soil body or wherein one section or multistage wherein.
In above-mentioned Composite Bolt, above-mentioned cement-soil anchoring body can be that the load transfering strip position diameter of constructing in the soil body is big, the little variable cross-section pile body of non-load transfering strip position diameter.
In above-mentioned Composite Bolt, above-mentioned load transfering strip can be to construct to solidify back intensity and all be higher than the structure of cement-soil with the bond stress of the body of rod in wherein cement lumps, mortar piece or pea gravel concreten etc. before the cement-soil anchoring body solidifies.
In above-mentioned Composite Bolt, above-mentioned load transfering strip can be approximate spherical or axiolitic structure and the combination thereof that places cement-soil anchoring body inside.
In above-mentioned Composite Bolt, the above-mentioned body of rod can be the combination of reinforcing bar, steel hinge line or itself and built-in fitting.
Composite Bolt easy construction of the present invention, cost is low, and the anchor pole bearing capacity is big, can be used for soft clay area, has successfully solved the restriction that weak soil uses anchor pole.Extensively model is applied to engineering fields such as bracing of foundation pit.
Description of drawings
Fig. 1 is the used Composite Bolt structure construction schematic diagrames of one embodiment of the present of invention.
Fig. 2 is the used load transfering strip construction control device organigrams of one embodiment of the present of invention.
The specific embodiment
As a Fig. 1 and an embodiment shown in Figure 2, main purpose is to introduce structure construction, operating principle and the job practices thereof of Composite Bolt as of the present invention.At first in conjunction with structure construction and the operating principle thereof of introducing the Composite Bolt in the present embodiment shown in Figure 1.As shown in Figure 1, Composite Bolt of the present invention comprises cement-soil anchoring body (1), load transfering strip (2) is formed with the body of rod (3) three parts, wherein cement-soil anchoring body (1) is the high-pressure rotary jet grouting pile or the cement mixing method of constructing near horizontal direction in the soil body, load transfering strip (2) is positioned at the inside of cement-soil anchoring body (1), can adopt cement mortar, cement paste or pea gravel concreten construction are finished, the intensity of load transfering strip (2) and be far longer than cement-soil anchoring body (1) with the bond stress of the body of rod (3), the body of rod (3) passes through load transfering strip (2), firmly be connected with load transfering strip (2), load transfering strip (2) is connected with cement-soil anchoring body (1), because contact surface is bigger, thereby the huge anchored force that cement-soil anchoring body (1) can be produced in the soil body passes to the body of rod (3), reaches the effect of Composite Bolt.Mainly introduce the job practices of Composite Bolt with the lower part at present embodiment.The first step in the job practices of Composite Bolt reaches the position that anchor pole is determined in designing requirement at first as required, enters second step of the job practices of Composite Bolt then.In this step, construct high-pressure rotary jet grouting pile or cement mixing method as cement-soil anchoring body (1) in the anchor pole position, when adopting high-pressure rotary jet grouting pile as cement-soil anchoring body (1), can regulate the size of pile body diameter by spray pressure, can load transfering strip (2) position construction major diameter high-pressure rotary jet grouting pile be set, do not establishing load transfering strip (2) position construction minor diameter high-pressure rotary jet grouting pile, forming the cement-soil anchoring body (1) of variable cross-section, to save building materials.Thereby finish second step of Composite Bolt job practices of the present invention, entered for the 3rd step.In this is rapid, utilize steel pipe conduct transfer passage (4) as shown in Figure 2, lying in transfer passage (4) after can folding with geotextiles goes up as pocket (5), make transfer passage (4) and pocket (5) UNICOM, just formed load transfering strip construction control device, in this step, also can utilize flexible bag to lie in that transfer passage (4) is gone up and with transfer passage (4) UNICOM as pocket (5), one or more pockets (5) can be set in this step.When constructing in this step, can utilize steel strand that the end is connected with built-in fitting, also can directly utilize reinforcing bar, can also utilize transfer passage (4) as the body of rod (3) or as the part of the body of rod (3) as the body of rod (3) as the body of rod (3).In the present embodiment, make the body of rod (3) pass through pocket (5), then the body of rod (3) and the load transfering strip construction control device that has transfer passage (4), a pocket (5) are inserted cement-soil anchoring body (1).Thereby finish the 3rd step of Composite Bolt job practices of the present invention, entered for the 4th step.In this step, in transfer passage (4), inject cement paste or not solidified material such as cement mortar or pea gravel concreten, and apply certain pressure, make above-mentioned not solidified material arrive pocket (5) and inflation pocket (5) by transfer passage (4), pocket (5) is expanded in cement-soil anchoring body (1), after treating that the interior material of pocket (5) solidifies, just can bond with the body of rod (3) and be connected, and be connected with cement-soil anchoring body (1) large tracts of land contact, promptly form load transfering strip (2) as shown in Figure 1, if be provided with a plurality of pockets (5), then can in same anchor pole, form a plurality of load transfering strips (2).Thereby finish the 4th step of Composite Bolt job practices of the present invention, entered for the 5th step.In this step, treat just to have formed Composite Bolt behind load transfering strip in the step d) (2) material solidification, thereby finish the construction of Composite Bolt of the present invention.The 3rd step in the present embodiment and the 4th step, can also directly adopt transfer passage (4) as load transfering strip construction control device, when construction load transfering strip (2), in transfer passage (4), pour into pea gravel concreten or cement mortar, by pushing or ram pea gravel concreten or the cement mortar in the transfer passage (4), just can form enlarged footing at the far-end of transfer passage (4), just can be used as load transfering strip (2) behind this enlarged footing parcel body of rod (3).
This patent includes but not limited to other job practicess of the alternative use of professional person in this area.
Claims (6)
1. Composite Bolt, it is characterized in that this Composite Bolt comprises cement-soil anchoring body (1), load transfering strip (2), the body of rod (3) three parts composition, cement-soil anchoring body (1) wherein directly contacts with the soil body, load transfering strip (2) is positioned at cement-soil anchoring body (1) inside, and the body of rod (3) passes through load transfering strip (2).
2. Composite Bolt according to claim 1 is characterized in that above-mentioned cement-soil anchoring body (1) can be the high-pressure rotary jet grouting pile of constructing or wherein one section or multistage wherein in the soil body.
3. Composite Bolt according to claim 1 is characterized in that above-mentioned cement-soil anchoring body (1) can be that load transfering strip (2) the position diameter of constructing is big, the little variable cross-section pile body of non-load transfering strip (2) position diameter in the soil body.
4. Composite Bolt according to claim 1 is characterized in that above-mentioned load transfering strip (2) can be to construct to solidify back intensity and all be higher than the structure of cement-soil with the bond stress of the body of rod (3) in wherein cement lumps, mortar piece or pea gravel concreten etc. before cement-soil anchoring body (1) solidifies.
5. Composite Bolt according to claim 1 is characterized in that above-mentioned load transfering strip (2) can be approximate spherical or axiolitic structure and the combination thereof that places cement-soil anchoring body (1) inner.
6. Composite Bolt according to claim 1 is characterized in that the above-mentioned body of rod (3) can be the combination of reinforcing bar, steel hinge line or itself and built-in fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205463346U CN201801865U (en) | 2010-09-28 | 2010-09-28 | Combination anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205463346U CN201801865U (en) | 2010-09-28 | 2010-09-28 | Combination anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201801865U true CN201801865U (en) | 2011-04-20 |
Family
ID=43871372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205463346U Expired - Lifetime CN201801865U (en) | 2010-09-28 | 2010-09-28 | Combination anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201801865U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949152A (en) * | 2010-09-28 | 2011-01-19 | 张继红 | Compound anchor rod and construction method thereof |
| CN102535455A (en) * | 2011-05-27 | 2012-07-04 | 李宪奎 | Formation method of jet-grouted anchor pile |
| CN109989778A (en) * | 2019-04-08 | 2019-07-09 | 山东科技大学 | A kind of multistage anchoring yielding automatically anchor pole and anchoring process |
-
2010
- 2010-09-28 CN CN2010205463346U patent/CN201801865U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949152A (en) * | 2010-09-28 | 2011-01-19 | 张继红 | Compound anchor rod and construction method thereof |
| CN101949152B (en) * | 2010-09-28 | 2012-09-05 | 张继红 | Compound anchor rod and construction method thereof |
| CN102535455A (en) * | 2011-05-27 | 2012-07-04 | 李宪奎 | Formation method of jet-grouted anchor pile |
| CN109989778A (en) * | 2019-04-08 | 2019-07-09 | 山东科技大学 | A kind of multistage anchoring yielding automatically anchor pole and anchoring process |
| CN109989778B (en) * | 2019-04-08 | 2020-08-28 | 山东科技大学 | Multi-section anchoring automatic yielding anchor rod and anchoring method |
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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 |
Granted publication date: 20110420 |
|
| CX01 | Expiry of patent term |