CN100370111C - Composite rockbolt - Google Patents
Composite rockbolt Download PDFInfo
- Publication number
- CN100370111C CN100370111C CNB01143077XA CN01143077A CN100370111C CN 100370111 C CN100370111 C CN 100370111C CN B01143077X A CNB01143077X A CN B01143077XA CN 01143077 A CN01143077 A CN 01143077A CN 100370111 C CN100370111 C CN 100370111C
- Authority
- CN
- China
- Prior art keywords
- anchor
- rod
- hollow bolt
- hole
- bolt body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002131 composite material Substances 0.000 title abstract 2
- 239000007787 solid Substances 0.000 claims abstract description 24
- 238000007569 slipcasting Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 abstract description 10
- 239000002002 slurry Substances 0.000 abstract 4
- 238000007599 discharging Methods 0.000 abstract 2
- 239000004570 mortar (masonry) Substances 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000004873 anchoring Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Joining Of Building Structures In Genera (AREA)
Abstract
The present invention relates to a composite rockbolt which is mainly composed of a screw nut, a shim plate, a slurry stopping plug, a hollow rockbolt body, a slurry injecting channel, a slurry discharging channel, an exhaust channel, a connecting section, a solid rockbolt body, a rockbolt head and a rockbolt hole. The hollow rockbolt body is connected and combined with the solid rockbolt body through the special connecting section to form the integral rockbolt body, and the slurry discharging channel is arranged on the connecting section; therefore, the functions of materials are fully exerted. The present invention has relatively large implementing value, social benefit and economic benefit.
Description
Technical field
The present invention relates to a kind of anchor pole, especially anchor rod body is made up and is applicable to the combined anchor of anchoring support system by different anchor rod body segmentations.
Background technology
Existing combined anchor, as Chinese utility model patent, the patent No. of: inventor application is a kind of combined first-anchoring-after-grouting anchor rod that discloses in 01202834.7, and anchor rod body is combined by the hollow bolt body of rod and solid anchor rod body segmentation exactly.Its method of attachment is generally with the one end straight reaming of the hollow bolt body of rod, then, solid anchor rod body inserted from the extruding of reaming position appearance ecto-entad the hollow bolt body of rod and solid anchor rod body is connected with Special Equipment mutually in this reaming to constitute integral body.Owing to be that extruding connects, the material of the hollow bolt body of rod generally must be selected the low material of grade of steel for use, and grade of steel is low more, the intensity of material is also low more, promptly under the same intensity requirement condition, the anchor pole that adopts this mode to connect, it is big that the sectional dimension of the hollow bolt body of rod often needs to become, so not only cause new waste of material, and its anchor hole diameter also needs to increase accordingly, and the anchor hole diameter is big more, and the pore-forming difficulty is also big more, as the more expensive pore-forming equipment of needs etc., bring a series of negative consequences for the use of combined first-anchoring-after-grouting anchor rod; In addition, existing extruding connects because the sectional area of reaming section is identical with the original sectional area of the hollow bolt body of rod, and connecting portion is extruded the place because of the extruding attenuate after extruding, and connecting portion can become the intensity weakest link of the anchor rod body after the combination.Equally, because directly on the original hollow bolt body of rod, form the pulp through hole, also weakened the intensity of this place's anchor rod body.Though this combined first-anchoring-after-grouting anchor rod can have been realized reduction anchor rod body cost purpose sometimes, the connecting portion of anchor rod body and pulp through hole are easy to become the weakest link of intensity, and the usefulness of material can not be given full play to, and cause waste.
Summary of the invention
The invention provides a kind of with low cost, easy to connect during use, can not make connecting portion or pulp through hole become the combined anchor of anchor rod body intensity weakest link again.
The present invention is by providing a kind of combined anchor with following structure to realize: a kind of combined anchor, comprise the hollow bolt body of rod, the hollow bolt body of rod connects and composes integral body through linkage section and solid anchor rod body, the endoporus of the hollow bolt body of rod is the slip casting passage, the intensity of linkage section is in 5 times of the original intensity of the hollow bolt body of rod, the pulp through hole is on linkage section, the pulp through hole communicates with slip casting passage and anchor hole respectively, and exhaust passage one end communicates with atmosphere, the other end communicates with anchor hole and in the anchor hole inboard.
Described linkage section can be an one with the hollow bolt body of rod altogether.
The internal thread that the described hollow bolt body of rod can be external screw thread and nut matches.
Described exhaust passage is therefrom passed in the slip casting passage in the spare anchor club shaft.
Described its effective length of solid anchor rod body can be 1～20 times of hollow bolt body of rod effective length.
Adopt combined anchor of the present invention, compare with original structure, because it is special and increased the intensity of linkage section, the pulp through hole is just on linkage section, make it no longer become the weak link of the anchor rod body intensity after influence is made up, like this, just can give full play to the material usefulness of the higher hollow bolt body of rod of price, have bigger implementary value and economic results in society.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Accompanying drawing 1 is the sectional view of first specific embodiment of combined anchor of the present invention.
Wherein, 1-nut, 2-backing plate, 3-stop grouting plug, the 4-hollow bolt body of rod, 5-slip casting passage, 6-pulp through hole, 7-linkage section, the solid anchor rod body of 8-, 9-exhaust passage, 10-anchor hole, 11-anchor head.
Fig. 2 is the sectional view of second embodiment of combined anchor of the present invention.
Wherein, 1-nut, 2-backing plate, 3-stop grouting plug, the 4-hollow bolt body of rod, 5-slip casting passage, 6-pulp through hole, 7-linkage section, the solid anchor rod body of 8-, 9-exhaust passage, 10-anchor hole, 11-anchor head.
The specific embodiment
Fig. 1 shows first embodiment of combined anchor of the present invention.In order to obtain the intensity linkage section 7 high than the hollow bolt body of rod 4, directly with the 4 one end reamings of the hollow bolt body of rod, the jumping-up section of connecting 7, make with the hollow bolt body of rod 4 be 1.5 times of the hollow bolt body of rod 4 original cross-sectional areas for the cross-sectional area of the linkage section 7 of one altogether, and on linkage section 7, process and connect with in internal thread and the pulp through hole 6, guarantee that the intensity of its weakness is more than 1.15 times of the hollow bolt body of rod 4 original intensity.In order to improve the intensity of linkage section 7, also can adopt linkage section 7 is heat-treated way, for economical with materials, the cross-sectional profiles at pulp through hole 6 places can be concaveconvex shape, pulp through hole 6 is at recess, just the wall thickness thinnest part.The part or all of external screw thread on the hollow bolt body of rod 4 external surfaces and the internal thread of nut 1 are matched, get 1 meter of the effective length of the hollow bolt body of rod 4.Will as the steel concrete of solid anchor rod body 8 with the hot rolled ribbed steel bar blanking after an end jumping-up with compensation because of processing the influence of external screw thread at this end to this Ribbed Bar intensity, linkage section 7 internal threads on this end external screw thread and the hollow bolt body of rod 4 match, and get 2 meters of these solid anchor rod body 8 effective lengths.Just can connect and compose the anchor rod body integral body that is about 3 meters through the be threaded hollow bolt body of rod 4 of linkage section 7 with solid anchor rod body 8, the hollow bolt body of rod 4 interior slip casting passages 5 communicate with pulp through hole 6.In order to give full play to material usefulness, the intensity basically identical of the intensity of the hollow bolt body of rod 4 and solid anchor rod body 8, or the intensity of generally getting solid anchor rod body 8 is than the intensity height of the hollow bolt body of rod 4, and can select solid anchor rod body 8 effective lengths is 120 times of the hollow bolt body of rod 4 effective lengths.The hollow bolt body of rod 4 also can adopt other strong link technique such as grade through linkage section 7 and being connected of solid anchor rod body 8, as: extruding connection, welding etc.During use, usually earlier install anchor head 11 on the top of solid anchor rod body 8, with anchor rod body after the combination and the precalculated position that all places the anchor hole of having accomplished fluently 10, exhaust passage 9, general exhaust passage 9 one ends are in the anchor hole bottom, the other end communicates with atmosphere, and the external port that stop grouting plug 3 shutoff anchor holes 10 are installed again prevents that mortar is excessive.For the ease of stop grouting plug 3 is installed, can therefrom pass exhaust passage 9 in the slip casting passage 5 in the spare anchor club shaft 4, exhaust passage 9 is not directly contacted with stop grouting plug 3 or pass from stop grouting plug 3.Guarantee during for the ease of installation that anchor rod body is suspended on the anchor head 11 of anchor hole 10 centers easily, the internal thread that the top of solid anchor rod body 8 can process a bit of screw thread and anchor head 11 matches, and anchor head 11 can also directly adopt binding materials.For prevent that anchor rod body from skidding off from anchor hole 10, can also anchor head 11 be installed at the hollow bolt body of rod 4 or at other position of solid anchor rod body 8.During slip casting, mortar enters anchor hole 10 by slip casting passage 5 through pulp through hole 6.Especially under anchor hole 10 top rade conditions, near the external port of mortar in anchor hole 10 from pulp through hole 6 enter anchor hole 10 and under mortar deadweight effect the whole anchor hole 10 of sequential filling, and the air in the anchor hole 10 9 is discharged from the exhaust passage.After treating that slip casting is finished, can adopt backing plate 2 and nut 1, and be installed in the tail end of the hollow bolt body of rod 4 according to instructions for use.If adopt the anchoring anchor head, as: the end anchorage formula anchor heads such as shell-type anchor head or bonding anchor head that expand promptly can apply prestressing force at the hollow bolt body of rod 4 tail ends installation backing plate 2 and 1 pair of anchor rod body of nut before slip casting.If anchor rod body 4 tail ends do not need to install backing plate 2 and nut 1, the external screw thread that the external surface of the hollow bolt body of rod 4 can be not match with nut 1, its external surface can be optical surface or other textured surface.If anchor head 11 is drill bits, just can makes automatic anchor pole and use.
Fig. 2 shows second embodiment of combined anchor of the present invention.Adopting through linkage section 7 independently with Ribbed Bar as the steel concrete of 2 meters of the length of solid anchor rod body 8 of long 1 meter the hollow bolt body of rod 4 and intensity basically identical pushed link techniques and connected and composed the anchor rod body integral body that is about 3 meters, wherein, 1.25 times of the intensity that the weakness cross sectional strength that has the linkage section 7 of pulp through hole 6 is the hollow bolt body of rod 4, and, slip casting passage 5 in pulp through hole 6 on the adapter sleeve 7 and the hollow bolt body of rod 4 communicates, and the internal thread of the hollow bolt body of rod 4 all or part of external screw threads and nut 1 is matched.During use, after anchor head 11 is installed on the top of solid anchor rod body 8, anchor rod body and exhaust passage 9 are all placed anchor hole 10 precalculated positions of having accomplished fluently, stop grouting plug 3 is installed anchor hole 10 external port and is prevented that mortar is excessive.During slip casting, mortar enters anchor hole 10 by slip casting passage 5 through pulp through hole 6, especially under anchor hole 10 top rade conditions, near the external port of mortar in anchor hole 10 from pulp through hole 6 enter anchor hole 10 and under mortar deadweight effect the whole anchor hole 10 of sequential filling, and the air in the anchor hole 10 are discharged from the top by exhaust passage 9.After treating that slip casting is finished,, backing plate 2 and nut 1 are installed at the hollow bolt body of rod 4 tail ends again according to instructions for use.The hollow bolt body of rod 4 and solid anchor rod body 8 also can through linkage section 7 be threaded constitute whole, if the anchor rod body tail end does not need to install backing plate 2 and nut 1, the external screw thread that the external surface of the hollow bolt body of rod 4 can be not match with nut 1.If anchor head 11 is drill bits, can makes automatic anchor pole and use.
Claims (5)
1. combined anchor, it is characterized in that the hollow bolt body of rod (4) connects and composes integral body through linkage section (7) and solid anchor rod body (8), the hollow endoporus of the hollow bolt body of rod (4) is slip casting passage (5), the intensity of linkage section (7) is in 5 times of the original intensity of the hollow bolt body of rod (4), pulp through hole (6) is on linkage section (7), pulp through hole (6) communicates with slip casting passage (5) and anchor hole (10) respectively, and exhaust passage (9) one ends communicate with atmosphere, the other end communicates with anchor hole (10) and in anchor hole (10) inboard.
2. combined anchor according to claim 1 is characterized in that the linkage section (7) and the hollow bolt body of rod (4) are one altogether.
3. combined anchor according to claim 1 is characterized in that the internal thread of the hollow bolt body of rod (4) external screw thread and nut (1) matches.
4. combined anchor according to claim 1 is characterized in that exhaust passage (9) therefrom passes in the slip casting passage (5) in the spare anchor club shaft (4).
5. combined anchor according to claim 1 is characterized in that solid anchor rod body (8) effective length is 1～20 times of the hollow bolt body of rod (4) effective length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01143077XA CN100370111C (en) | 2001-12-15 | 2001-12-15 | Composite rockbolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01143077XA CN100370111C (en) | 2001-12-15 | 2001-12-15 | Composite rockbolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1427139A CN1427139A (en) | 2003-07-02 |
| CN100370111C true CN100370111C (en) | 2008-02-20 |
Family
ID=4677059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB01143077XA Expired - Lifetime CN100370111C (en) | 2001-12-15 | 2001-12-15 | Composite rockbolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100370111C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518460A (en) * | 2011-12-21 | 2012-06-27 | 湖南科技大学 | Preserved anchorage method for prevention and control of rockburst |
| CN103266608B (en) * | 2013-06-04 | 2016-01-06 | 山东科技大学 | Truss combined antiskid anchor pole |
| CN103615272A (en) * | 2013-11-07 | 2014-03-05 | 山东交通学院 | Hollow anchor rod with rebar framework and construction method of hollow anchor rod |
| CN112483157A (en) * | 2021-01-06 | 2021-03-12 | 福建路桥建设有限公司 | Foldable anchor rod for narrow space of tunnel face and application method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85200498U (en) * | 1986-04-01 | 1986-05-28 | 长沙矿山研究院 | Tubular prestressed grouting anchor rod |
| US4802317A (en) * | 1987-10-29 | 1989-02-07 | Foresight Industries, Inc. | Ground anchor |
| CN2213849Y (en) * | 1995-04-19 | 1995-11-29 | 俞建 | Drilling type injecting anchor-bolt |
| CN2533267Y (en) * | 2001-12-15 | 2003-01-29 | 汪德洪 | Combined anchor bolt |
| CN2541605Y (en) * | 2002-04-10 | 2003-03-26 | 王永伯 | Wedge anchor arm |
-
2001
- 2001-12-15 CN CNB01143077XA patent/CN100370111C/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85200498U (en) * | 1986-04-01 | 1986-05-28 | 长沙矿山研究院 | Tubular prestressed grouting anchor rod |
| US4802317A (en) * | 1987-10-29 | 1989-02-07 | Foresight Industries, Inc. | Ground anchor |
| CN2213849Y (en) * | 1995-04-19 | 1995-11-29 | 俞建 | Drilling type injecting anchor-bolt |
| CN2533267Y (en) * | 2001-12-15 | 2003-01-29 | 汪德洪 | Combined anchor bolt |
| CN2541605Y (en) * | 2002-04-10 | 2003-03-26 | 王永伯 | Wedge anchor arm |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1427139A (en) | 2003-07-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hangzhou Dahua Engineering Material Co., Ltd. Assignor: Wang Dehong Contract record no.: 2011330000667 Denomination of invention: Porthole connection section of combined anchor bar and its manufacturing process Granted publication date: 20080220 License type: Common License Open date: 20030702 Record date: 20110602 |
|
| ASS | Succession or assignment of patent right |
Owner name: HANGZHOU DODRIVE ENGINEERING MATERIALS LTD. Free format text: FORMER OWNER: WANG DEHONG Effective date: 20120703 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xiang Xiaozhen Inventor after: Lv Zhiping Inventor before: Wang Dehong |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 310013 HANGZHOU, ZHEJIANG PROVINCE TO: 310008 HANGZHOU, ZHEJIANG PROVINCE Free format text: CORRECT: INVENTOR; FROM: WANG DEHONG TO: XIANG XIAOZHEN LV ZHIPING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120703 Address after: Six, 0615 floor, 310008 knitting City, Shangcheng District, Zhejiang, Hangzhou, China Patentee after: Hangzhou Dodrive Engineering Materials Ltd. Address before: 310013 room 1, unit 26, Shuguang village, Hangzhou, Zhejiang, 301 Patentee before: Wang Dehong |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180305 Address after: Shangcheng District Wu Jiang Road Hangzhou City, Zhejiang province 310008 No. 217 Building No. 1 room 605 No. 47 Patentee after: Zhejiang thousand song building materials Co., Ltd. Address before: Six, 0615 floor, 310008 knitting City, Shangcheng District, Zhejiang, Hangzhou, China Patentee before: Hangzhou Dodrive Engineering Materials Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080220 |
|
| CX01 | Expiry of patent term |