CN204899955U - Semi -closed anchor section anchor that extends greatly - Google Patents
Semi -closed anchor section anchor that extends greatly Download PDFInfo
- Publication number
- CN204899955U CN204899955U CN201520595540.9U CN201520595540U CN204899955U CN 204899955 U CN204899955 U CN 204899955U CN 201520595540 U CN201520595540 U CN 201520595540U CN 204899955 U CN204899955 U CN 204899955U
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- CN
- China
- Prior art keywords
- anchor
- expansion sleeve
- semiclosed
- anchoring section
- cover
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- 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.)
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Abstract
The utility model discloses a semi -closed anchor section anchor that extends greatly, personally experience sth. Part of the body and establish the extension mechanism in anchor body anchor section including the anchor, the seal cover that extension mechanism includes isolating barrel, expands and overlaps, draws bloated piece and be used for preventing the anchor agent outflow, the isolating barrel cover is outside the inflation cover, the anchor body passes the seal cover in proper order and expands and overlaps the back and draw bloated and be connected, the rock mass warp the anchor body and draws and expands that it expands to draw forms the extrusion to the inflation cover when producing axial tension for the inflation cover radial warp and the inflation, when the large deformation appeared in the rock mass, the anchor body drove to draw and expands along the axial motion of inflation cover and the inner wall of extrusion inflation cover, and the inflation cover radial warp and the inflation for the further motion of inflation cover can be followed to the anchor body, and the deflection of increase is big, can tolerate the country rock large deformation, and the mechanism of extending in addition locates the anchor section, can not reduce underground works's use section, the seal cover can guarantee that adhesion quality reduces anchor agent's waste simultaneously.
Description
Technical field
The utility model relates to a kind of anchor device, particularly the large extension anchor device of the semiclosed anchoring section of one.
Background technology
Because of the impact of ground pressure, underground construction, side slope inevitably produce distortion in various degree in construction; Anchor device (comprising anchor pole and anchor cable) is used to control rock mass deformation, but cannot stop this distortion completely; The deflection that different geotechnical engineering produces is different, underground soft rock engineering, has the rock stratum of bump and coal and gas prominent tendency, can produce very large deflection; The distortion of these rock mass can be made to obtain controlling and can not allow anchor device be pulled off, just need resistance large and allow the anchor device of large deformation.The deflection that common anchor fixing apparatus can allow is very little, and the elongation primarily of anchor body (anchor bar body or anchor cable body) material itself determines, the elongation of glass fibre reinforced plastics rockbolts and anchor cable is 3%, and the elongation of anchor metal is maximum is no more than 18%; Be only very limited from the deflection improving anchor body material (as selected the large high-quality steel of elongation) and improve anchor device, must consider from innovation anchor device overall structure.In prior art, the general mode adopted between pallet and nut (or lockset), increases by one allow pressure component, by the deflection allowing the damaged deformation of pressure component improve anchor device entirety; But the deflection that can increase of this structure is little, and allow pressure component be in underground construction useful area, decrease the use section of underground construction.
Therefore, just need the large extension anchor device of a kind of semiclosed anchoring section, its deflection increased is large, can allow country rock large deformation, and can not reduce the use section of underground construction.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of semiclosed anchoring section large extension anchor device, and its deflection increased is large, can allow country rock large deformation, and can not reduce the use section of underground construction.
The large extension anchor device of semiclosed anchoring section of the present utility model, comprises anchor body and is located at the spreader mechanism of anchor body anchoring section; Described spreader mechanism comprising isolating cylinder, expansion sleeve, drawing swollen and sealing shroud for preventing Anchor Agent from flowing out, and described isolating cylinder is enclosed within outside expansion sleeve, described anchor body successively through after sealing shroud and expansion sleeve with draw swollen and be connected; Rock mass deformation is drawn swollen to anchor body and when drawing swollen generation axial tension and is formed extruding to expansion sleeve, makes expansion sleeve produce radial deformation and expand.
Further, top and the bottom of described expansion sleeve are equipped with opening, and the wall of described expansion sleeve is provided with the deformation joint extended from its top open part.
Further, the wall of described expansion sleeve is provided with at least two along its axially extended deformation joint.
Further, the wall of described expansion sleeve is provided with four deformation joints, and each described deformation joint is uniformly distributed along the circumference of expansion sleeve.
Further, the length of described deformation joint is the 1/4-3/4 of expansion sleeve length.
Further, described in draw swollen big up and small down frustum, and described in draw the internal diameter that large portion diameter is greater than the internal diameter of expansion sleeve, little portion diameter is less than expansion sleeve of swollen.
Further, top seal, the bottom of described isolating cylinder are provided with opening, and described isolating cylinder is enclosed within outside deformation joint.
Further, described isolating cylinder adopts elastoplast to make.
Further, described anchor body is set with for the closely connected pallet in rock mass scar and for regulating the regulating part of pretightning force, described regulating part forms axial compression to pallet.
Further, described anchor body is the anchor rod body or the anchor cable that are provided with injected hole at free segment.
The beneficial effects of the utility model: the large extension anchor device of semiclosed anchoring section of the present utility model, when there is large deformation in rock mass, anchor body drives and draws swollen the axially-movable along expansion sleeve and the inwall of extrusion expansion cover, expansion sleeve produces radial deformation and expands, anchor body can be moved further along expansion sleeve, and the deflection of increase is large, can allow country rock large deformation, and spreader mechanism is located at anchoring section, the use section of underground construction can not be reduced; Sealing shroud can ensure that bonding quality reduces the waste of Anchor Agent simultaneously.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the front view of expansion sleeve of the present utility model;
Fig. 3 is the left view of expansion sleeve of the present utility model.
Detailed description of the invention
Fig. 1 is structural representation of the present utility model, Fig. 2 is the front view of expansion sleeve of the present utility model, Fig. 3 is the left view of expansion sleeve of the present utility model, as shown in the figure: the large extension anchor device of semiclosed anchoring section of the present embodiment, comprises anchor body 1 and is located at the spreader mechanism of anchor body 1 anchoring section; Described spreader mechanism comprising isolating cylinder 2, expansion sleeve 3, drawing swollen 4 and sealing shroud 5 for preventing Anchor Agent 9 from flowing out, and described isolating cylinder 2 is enclosed within outside expansion sleeve 3, described anchor body 1 successively through after sealing shroud 5 and expansion sleeve 3 with draw swollen 4 and be connected; Rock mass deformation is drawn swollen 4 pairs of expansion sleeve 3 to anchor body 1 and when drawing and produce axial tension for swollen 4 and is formed extruding, makes expansion sleeve 3 produce radial deformation and expand; This anchor device both can be anchor structure, also can be anchor cable structure, and corresponding anchor body 1 can be anchor rod body or anchor cable; The inwall of expansion sleeve 3 can be held by " support " when being subject to radial compression, thus makes expansion sleeve 3 produce expansion effect; When there is large deformation in rock mass, anchor body 1 drives and draws swollen 4 axially-movable along expansion sleeve 3 and the inwall of extrusion expansion cover 3, expansion sleeve 3 produces radial deformation and expands, anchor body 1 can be moved further along expansion sleeve 3, the deflection increased is large, can allow country rock large deformation (extending for large), and spreader mechanism is located at anchoring section, can not reduce the use section of underground construction; Sealing shroud 5 can ensure that bonding quality reduces the waste of Anchor Agent 9 simultaneously; Expansion sleeve 3 part is positioned at isolating cylinder 2, is semi-closed structure.
In the present embodiment, top and the bottom of described expansion sleeve 3 are equipped with opening, and the wall of described expansion sleeve 3 is provided with the deformation joint 3a extended from its top open part; The top of expansion sleeve 3 is near anchor hole blind end; The wall of expansion sleeve 3 is separated by deformation joint 3a, such that the inwall of expansion sleeve 3 can be out of shape after being subject to drawing the extruding of swollen 4 and " support " opens, and this structure simply, easily realizes; The wall of described expansion sleeve 3 is provided with at least two along its axially extended deformation joint 3a, and preferably, the wall of described expansion sleeve 3 is provided with four deformation joint 3a, and each described deformation joint 3a is uniformly distributed along the circumference of expansion sleeve 3; The length of deformation joint 3a determines extended length, and the length of described deformation joint 3a can be the 1/4-3/4 of expansion sleeve 3 length, determines according to concrete user demand.
In the present embodiment, described in draw swollen 4 big up and small down frustums, and described in the internal diameter that large portion diameter is greater than the internal diameter of expansion sleeve 3, little portion diameter is less than expansion sleeve 3 that draws swollen 4; Expansion sleeve 3 draws swollen 4 and can be circular cone, also the side's of can be cone, as long as can be caused to be out of shape; Draw swollen 4 to be connected with anchor body 1 by modes such as being spirally connected, welding or be one-body molded; Up big and down smallly refer to its cross section; Draw the diameter that the large portion diameter of swollen 4 is corresponding when namely its cross section is maximum, the diameter that little portion diameter is corresponding when namely its cross section is minimum; Drawing swollen 4 and can be an individual member, can be formed by multiple component installaiton; When original state, the outer wall drawn swollen 4 is against the top open part of expansion set.
In the present embodiment, top seal, the bottom of described isolating cylinder 2 are provided with opening, and described isolating cylinder 2 is enclosed within outside deformation joint 3a; The top of isolating cylinder 2 is near anchor hole blind end; In the present embodiment, described isolating cylinder 2 adopts elastoplast to make, thus has certain deformation, can Allowable expansion cover 3 distortion.
In the present embodiment, described anchor body 1 is set with for the closely connected pallet 6 in rock mass scar and for regulating the regulating part 7 of pretightning force, described regulating part 7 pairs of pallets 6 form axial compression; Pallet 6, regulating part 7 all adopt existing mechanism, and wherein regulating part 7 can be the nut with anchor body 1 threaded engagement, or other existing lockset, do not repeat them here.
In the present embodiment, described anchor body 1 is the anchor rod body (or anchor cable) being provided with injected hole (not shown) at free segment; Anchor rod body adopts hollow structure, utilizes injected hole to carry out grouting support.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (10)
1. the large extension anchor device of semiclosed anchoring section, is characterized in that: comprise anchor body and be located at the spreader mechanism of anchor body anchoring section; Described spreader mechanism comprising isolating cylinder, expansion sleeve, drawing swollen and sealing shroud for preventing Anchor Agent from flowing out, and described isolating cylinder is enclosed within outside expansion sleeve, described anchor body successively through after sealing shroud and expansion sleeve with draw swollen and be connected; Rock mass deformation is drawn swollen to anchor body and when drawing swollen generation axial tension and is formed extruding to expansion sleeve, makes expansion sleeve produce radial deformation and expand.
2. the large extension anchor device of semiclosed anchoring section according to claim 1, is characterized in that: top and the bottom of described expansion sleeve are equipped with opening, and the wall of described expansion sleeve is provided with the deformation joint extended from its top open part.
3. the large extension anchor device of semiclosed anchoring section according to claim 2, is characterized in that: the wall of described expansion sleeve is provided with at least two along its axially extended deformation joint.
4. the large extension anchor device of semiclosed anchoring section according to claim 3, is characterized in that: the wall of described expansion sleeve is provided with four deformation joints, and each described deformation joint is uniformly distributed along the circumference of expansion sleeve.
5. the large extension anchor device of semiclosed anchoring section according to claim 2, is characterized in that: the length of described deformation joint is the 1/4-3/4 of expansion sleeve length.
6. the large extension anchor device of semiclosed anchoring section according to claim 1, is characterized in that: described in draw swollen big up and small down frustum, and described in draw the internal diameter that large portion diameter is greater than the internal diameter of expansion sleeve, little portion diameter is less than expansion sleeve of swollen.
7. the large extension anchor device of semiclosed anchoring section according to claim 2, is characterized in that: top seal, the bottom of described isolating cylinder are provided with opening, and described isolating cylinder is enclosed within outside deformation joint.
8. the large extension anchor device of semiclosed anchoring section according to claim 1, is characterized in that: described isolating cylinder adopts elastoplast to make.
9. the large extension anchor device of semiclosed anchoring section according to claim 1, is characterized in that: described anchor body is set with for the closely connected pallet in rock mass scar and for regulating the regulating part of pretightning force, described regulating part forms axial compression to pallet.
10. the large extension anchor device of semiclosed anchoring section according to claim 1, is characterized in that: described anchor body is the anchor rod body or the anchor cable that are provided with injected hole at free segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520595540.9U CN204899955U (en) | 2015-08-07 | 2015-08-07 | Semi -closed anchor section anchor that extends greatly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520595540.9U CN204899955U (en) | 2015-08-07 | 2015-08-07 | Semi -closed anchor section anchor that extends greatly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204899955U true CN204899955U (en) | 2015-12-23 |
Family
ID=54922141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520595540.9U Expired - Fee Related CN204899955U (en) | 2015-08-07 | 2015-08-07 | Semi -closed anchor section anchor that extends greatly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204899955U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678788A (en) * | 2018-04-18 | 2018-10-19 | 山东大学 | A kind of body of rod piston increases resistance pressure-relieving achor bar and construction method |
| CN109072697A (en) * | 2016-04-12 | 2018-12-21 | 安百拓凿岩有限公司 | Method and apparatus for rock reinforcement |
| CN112554926A (en) * | 2020-12-11 | 2021-03-26 | 重庆大学 | Hollow charge anchor rod device |
-
2015
- 2015-08-07 CN CN201520595540.9U patent/CN204899955U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109072697A (en) * | 2016-04-12 | 2018-12-21 | 安百拓凿岩有限公司 | Method and apparatus for rock reinforcement |
| CN108678788A (en) * | 2018-04-18 | 2018-10-19 | 山东大学 | A kind of body of rod piston increases resistance pressure-relieving achor bar and construction method |
| CN112554926A (en) * | 2020-12-11 | 2021-03-26 | 重庆大学 | Hollow charge anchor rod device |
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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: 20151223 Termination date: 20190807 |