CN204780945U - Enlarged footing anchor bolt support structure - Google Patents
Enlarged footing anchor bolt support structure Download PDFInfo
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- CN204780945U CN204780945U CN201520525385.3U CN201520525385U CN204780945U CN 204780945 U CN204780945 U CN 204780945U CN 201520525385 U CN201520525385 U CN 201520525385U CN 204780945 U CN204780945 U CN 204780945U
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- anchor
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- bellend
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Abstract
The utility model discloses an enlarged footing anchor bolt support structure, including anchor eye, stock and grouting segment, the stock still includes body of rod bellend, this body of rod bellend and intermediate lever fixed connection, and the transverse dimension of body of rod bellend is greater than the transverse dimension of intermediate lever, the upper portion of anchor eye is expansion anchor section for the constant diameter section that the diameter is equal, lower part, and the transverse dimension that should enlarge the anchor section is greater than the transverse dimension of constant diameter section, body of rod bellend is located and enlarges the anchor section, adopts grouting segment to fill between body of rod bellend and expansion anchor sector hole wall, the utility model discloses the anchor bolt support structure between stock and the grouting segment, still applyed the bearing capacity except frictional force between grouting segment and the anchor eye, has strengthened between stock and the grouting segment, the anchor power between grouting segment and the anchor eye pore wall greatly, has improved the withdrawal resistance of stock, under equal designing requirement, can be with the contraction in length of anchor section, the increase of stock interval, greatly reduced engineering cost.
Description
Technical field
The utility model belongs to geotechnical engineering, construction engineering technical field, is specifically related to a kind of enlarged footing bolt support structure.
Background technology
Anchor pole by a large amount of in pattern foundation pit supporting structure, slope retaining, landslide control and building anti-floating engineering.Bolt support structure traditional is at present made up of anchor hole, anchor pole and injecting cement paste.Anchor hole is equal diameter hole; Anchor pole is stock always, anchor pole comprises anchoring section, free segment and outer anchor section, anchoring section stretches into anchor hole bosom and is fixed by injecting cement paste and bond with hole wall, the outer anchor section of anchor pole is exposed at outside anchor hole, be anchored in baffle plate, anchor section adopts backing plate and nut to fix outside, and free segment is connected between anchoring section and outer anchor section, makes rock mass effect pass to anchoring section to the pressure of the outer anchor section of anchor pole.The bolt support structure of this structure, what it utilized is the frictional force between anchor bar body and injecting cement paste, the frictional force between injecting cement paste and hole wall, and mechanical efficiency is lower, and the uplift resistance provided is not enough.In order to significantly improve the uplift resistance of anchor pole, need the anchoring section of anchor pole to lengthen, by the spacing density of anchor pole, this extends the construction period undoubtedly, improves construction costs.
Utility model content
For above-mentioned deficiency of the prior art, the utility model main purpose is to provide a kind of enlarged footing bolt support structure that greatly can strengthen anchored force between anchor pole and injecting cement paste.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of enlarged footing bolt support structure, comprise anchor hole, anchor pole and injecting cement paste, anchor pole comprises intermediate bar and outer anchor section, intermediate bar stretches in anchor hole, injecting cement paste is filled in anchor hole, and the outer anchor section of anchor pole is exposed at outside anchor hole, and described anchor pole also comprises body of rod bellend, this body of rod bellend is fixedly connected with intermediate bar, and the lateral dimension of body of rod bellend is greater than the lateral dimension of intermediate bar; The top of described anchor hole is isometrical section of equal diameters, bottom for expanding anchoring section, the lateral dimension that the lateral dimension of this expansion anchoring section is greater than isometrical section; Described body of rod bellend is positioned at and expands anchoring section, between body of rod bellend and expansion anchoring section hole wall, adopt injecting cement paste to fill.
Further, the lateral dimension of described body of rod bellend is not less than 1.1 times of the lateral dimension of intermediate bar; The lateral dimension of described expansion anchoring section is not less than 1.1 times of isometrical section of lateral dimension.
Further, described intermediate bar adopts reinforcing bar, steel pipe or shaped steel to make.
Further, described body of rod bellend adopts high-strength material to make, adopt between body of rod bellend and intermediate bar be mechanically connected, clamping or be welded and fixed.
Further, the cross sectional shape of described body of rod bellend is circular, oval, square or polygon.
Further, the outer anchor section of described anchor pole is arranged with backing plate, the outside of backing plate adopts nut locking to fix.
Further, the body of rod of the outer anchor section of described anchor pole is to a lateral buckling.
Relative to prior art, the utility model has following beneficial effect:
The utility model bolt support structure by setting up body of rod bellend on anchor pole, the lateral dimension of this body of rod bellend is greater than the lateral dimension of intermediate bar, at the bottom of the hole that anchor hole is corresponding, expansion anchoring section is set, and inject injecting cement paste filling within it, make between anchor pole and injecting cement paste, except frictional force is also applied with bearing capacity between injecting cement paste and anchor hole, greatly strengthen between anchor pole and injecting cement paste, anchored force between injecting cement paste and anchor hole hole wall, improve the uplift resistance of anchor pole, under equal design requires, can by the contraction in length of anchoring section, anchor spacing increases, greatly reduce construction costs, remarkable in economical benefits.
Accompanying drawing explanation
Fig. 1 is this enlarged footing bolt support structural representation;
Fig. 2 is anchor structure schematic diagram.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
See Fig. 1 and Fig. 2: a kind of enlarged footing bolt support structure, comprises anchor hole 2, anchor pole 1 and injecting cement paste 3.One end of anchor pole 1 is stretched in anchor hole 2, and injecting cement paste 3 is filled in anchor hole 2, and anchor pole 1 and anchor hole 2 hole wall are bondd.
Anchor pole 1 comprises intermediate bar 11, body of rod bellend 12 and outer anchor section 13, and intermediate bar 11 is stock always, and body of rod bellend 12 is fixedly connected with intermediate bar 11, and the lateral dimension of body of rod bellend 12 is greater than the lateral dimension of intermediate bar 11; In the present embodiment, the lateral dimension of body of rod bellend 12 is not less than 1.1 times of the lateral dimension of intermediate bar.Intermediate bar 11 and body of rod bellend 12 stretch in anchor hole 2, and body of rod bellend 12 is positioned at the bosom of anchor hole 2.The outer anchor section 13 of anchor pole 1 is exposed at outside anchor hole, and outer anchor section 13 is structure as a whole with intermediate bar 11, outside anchor section 13 is arranged with backing plate 41, and the outside of backing plate 41 adopts nut 42 locking to fix.Or the body of rod of outer anchor section 13 is to a lateral buckling.
Anchor hole 2 comprises free segment, anchoring section and expansion anchoring section 21 from top to bottom successively.Free segment and anchoring section are isometrical section of equal diameters, and its diameter is more than or equal to the maximum transverse size of body of rod bellend 12.The lateral dimension that the lateral dimension expanding anchoring section 21 is greater than isometrical section, in the present embodiment, the lateral dimension expanding anchoring section 21 is not less than 1.1 times of isometrical section of lateral dimension.Expand anchoring section 21 shape can with the mating shapes of body of rod bellend 12, also can not match.Intermediate bar 11 and the body of rod bellend 12 of anchor pole stretch in anchor hole 2, and body of rod bellend 12 is positioned at expansion anchoring section 21.
Injecting cement paste 3 is filled in anchor hole 2, and anchor pole 1 is positioned at the centre position of anchor hole 2.Injecting cement paste 3 is solidified by the high-intensity cement paste be poured in anchor hole 2, high strength cement mortar or other high strength slurry etc. and forms, its effect is that anchor pole 1 and anchor hole 2 hole wall are bondd, frictional resistance, bearing capacity is formed between anchor pole 1 and injecting cement paste 3, between injecting cement paste 3 and hole wall, form anchor-holding force of anchor bolt, realize bolt support function.
Anchor pole 1 intermediate bar 11 and outer anchor section 13 adopt reinforcing bar, steel pipe or shaped steel to make, and body of rod bellend 12 adopts high-strength material to make.The cross sectional shape of body of rod bellend 12 is circle, oval square or polygon, the cross sectional shape of the expansion anchoring section 21 of anchor hole 2 can be the circle, oval square or the polygon that match with body of rod bellend 12, also can be other shape do not matched with body of rod bellend 12.
Anchor pole 1 intermediate bar and body of rod bellend 12 adopt and are mechanically connected, clamping or be welded and fixed.As arranged tapped installing hole in body of rod bellend 12, external screw thread being set at the outer wall of intermediate bar 11 corresponding end, being threaded connection in the installing hole that the corresponding end of intermediate bar 11 inserts body of rod bellend 12.Or arrange in body of rod bellend 12 and the corresponding end of intermediate bar 11 buckle cooperatively interacted respectively, both are by being buckled to fix.Or the corresponding end of intermediate bar 11 is fixed by welding in body of rod bellend 12.No matter adopt which kind of connected mode, as long as intermediate bar 11 and body of rod bellend 12 are fixed.
The utility model bolt support structure by setting up body of rod bellend on anchor pole, the lateral dimension of this body of rod bellend is greater than the lateral dimension of intermediate bar, the expansion anchoring section matched with body of rod bellend is set at the bottom of the hole that anchor hole is corresponding, and inject injecting cement paste filling within it, make between anchor pole and injecting cement paste, except frictional force is also applied with bearing capacity between injecting cement paste and anchor hole, greatly strengthen between anchor pole and injecting cement paste, anchored force between injecting cement paste and anchor hole hole wall, improve the uplift resistance of anchor pole, under equal design requires, can by the contraction in length of anchoring section, anchor spacing increases, greatly reduce construction costs.
Finally it should be noted that, above embodiment is only in order to illustrate the technical solution of the utility model but not restriction technologies scheme, although applicant has been described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, those are modified to the technical solution of the utility model or equivalent replacement, and do not depart from aim and the scope of the technical program, all should be encompassed in the middle of right of the present utility model.
Claims (7)
1. an enlarged footing bolt support structure, comprise anchor hole, anchor pole and injecting cement paste, anchor pole comprises intermediate bar and outer anchor section, intermediate bar stretches in anchor hole, and injecting cement paste is filled in anchor hole, and the outer anchor section of anchor pole is exposed at outside anchor hole, it is characterized in that, described anchor pole also comprises body of rod bellend, and this body of rod bellend is fixedly connected with intermediate bar, and the lateral dimension of body of rod bellend is greater than the lateral dimension of intermediate bar; The top of described anchor hole is isometrical section of equal diameters, bottom for expanding anchoring section, the lateral dimension that the lateral dimension of this expansion anchoring section is greater than isometrical section; Described body of rod bellend is positioned at and expands anchoring section, between body of rod bellend and expansion anchoring section hole wall, adopt injecting cement paste to fill.
2. enlarged footing bolt support structure according to claim 1, is characterized in that, the lateral dimension of described body of rod bellend is not less than 1.1 times of the lateral dimension of intermediate bar; The lateral dimension of described expansion anchoring section is not less than 1.1 times of isometrical section of lateral dimension.
3. enlarged footing bolt support structure according to claim 1 and 2, is characterized in that, described intermediate bar adopts reinforcing bar, steel pipe or shaped steel to make.
4. enlarged footing bolt support structure according to claim 1 and 2, is characterized in that, adopt between described body of rod bellend and intermediate bar be mechanically connected, clamping or be welded and fixed.
5. enlarged footing bolt support structure according to claim 4, is characterized in that, the cross sectional shape of described body of rod bellend is circular, oval, square or polygon.
6. enlarged footing bolt support structure according to claim 1 and 2, is characterized in that, the outer anchor section of described anchor pole is arranged with backing plate, and the outside of backing plate adopts nut locking to fix.
7. enlarged footing bolt support structure according to claim 1 and 2, is characterized in that, the body of rod of the outer anchor section of described anchor pole is to a lateral buckling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520525385.3U CN204780945U (en) | 2015-07-20 | 2015-07-20 | Enlarged footing anchor bolt support structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520525385.3U CN204780945U (en) | 2015-07-20 | 2015-07-20 | Enlarged footing anchor bolt support structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204780945U true CN204780945U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520525385.3U Active CN204780945U (en) | 2015-07-20 | 2015-07-20 | Enlarged footing anchor bolt support structure |
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| Country | Link |
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| CN (1) | CN204780945U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109518689A (en) * | 2019-01-09 | 2019-03-26 | 甘肃第六建设集团股份有限公司 | Sandstone layer is long to expand the high-strength single reinforcement anti-float anchor rod construction method of body |
| CN111733809A (en) * | 2020-07-01 | 2020-10-02 | 深圳钜联锚杆技术有限公司 | A toper supporting body and stock for stock |
| CN111733810A (en) * | 2020-07-01 | 2020-10-02 | 深圳钜联锚杆技术有限公司 | A awl section of thick bamboo supporting body and stock for stock |
-
2015
- 2015-07-20 CN CN201520525385.3U patent/CN204780945U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109518689A (en) * | 2019-01-09 | 2019-03-26 | 甘肃第六建设集团股份有限公司 | Sandstone layer is long to expand the high-strength single reinforcement anti-float anchor rod construction method of body |
| CN111733809A (en) * | 2020-07-01 | 2020-10-02 | 深圳钜联锚杆技术有限公司 | A toper supporting body and stock for stock |
| CN111733810A (en) * | 2020-07-01 | 2020-10-02 | 深圳钜联锚杆技术有限公司 | A awl section of thick bamboo supporting body and stock for stock |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161230 Address after: 408500 Chongqing city Wulong county government under the youfanggou market No. 45 Patentee after: Chongqing Zhong Gao Building Technology Co. Ltd. Address before: 401331 Chongqing city Shapingba District hogye University City Garden Patentee before: CHONGQING GEGOU CONSTRUCTION TECHNOLOGY DEVELOPMENT CO., LTD. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190613 Address after: 401120 No. 12, Qingfengbei Road, Yubei District, Chongqing City (No. 1, 21/F, Building A1A24, Development Zone) Patentee after: CHONGQING GEGOU CONSTRUCTION TECHNOLOGY DEVELOPMENT CO., LTD. Address before: 408500 Xiaofanggou Market No. 45, Xiangkou Town, Wulong County, Chongqing Patentee before: Chongqing Zhong Gao Building Technology Co. Ltd. |