CN203742639U - Radial grouting anchor rod with advancing support function - Google Patents
Radial grouting anchor rod with advancing support function Download PDFInfo
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- CN203742639U CN203742639U CN201420119151.4U CN201420119151U CN203742639U CN 203742639 U CN203742639 U CN 203742639U CN 201420119151 U CN201420119151 U CN 201420119151U CN 203742639 U CN203742639 U CN 203742639U
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- pipe
- tube
- rubber
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- rubber tube
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Abstract
The utility model relates to a radial grouting anchor rod with the advancing support function. The radial grouting anchor rod comprises a grouting connecting pipe. The grouting connecting pipe comprises a core connecting pipe, a grout outlet casing pipe and a grout inlet casing pipe, wherein the grout outlet casing pipe and the grout inlet casing pipe are connected with the front end and the rear end of the core connecting pipe respectively. The front end of a grouting channel of the core connecting piece is connected with an end seal pipe A sleeved with the grout outlet casing pipe and the rear end of the grouting channel is connected with a grout inlet pipe sleeved with the grout inlet casing pipe. The side wall at the front end of the grout outlet casing pipe is provided with a discharging guide pipe and a rubber exhaust pipe extending to the rear end of the grout inlet casing pipe. The front end of the grout outlet casing pipe is connected with a steel bar anchor rod body and provided with a dual-purpose plastic pipe, wherein the front end of the dual-purpose plastic pipe extends to an anchor head and the rear end of the dual-purpose plastic pipe is connected with the discharging guide pipe or the rubber exhaust pipe. The rear end of the grout inlet casing pipe is connected with the hollow anchor rod body and the side wall of the rear portion of the grout inlet casing pipe is provided with a grout outlet C. The rear end of the grout inlet pipe is connected with an anchor rod grouting pipe. A double-helix multi-ring structure grout stop plug allowing the rubber exhaust pipe to penetrate through is arranged on the periphery of the grouting connecting pipe. The advancing support function of the radial grouting anchor rod is achieved, advancing support engineering measures can be omitted, investment is saved, and the work period is shortened.
Description
Technical field
The utility model relates to a kind of supporting leading radial grouting anchor pole, construction of tunnel or geotechnical engineering field.
Background technology
Radial grouting anchor pole can improve the mechanical property of tunnel surrounding, the distortion of constraint country rock, the stability of raising country rock.In engineering, radial grouting anchor pole generally just starts construction after permanent excavation basal plane forms, when radial grouting anchor pole forms effect of contraction to the distortion of country rock, in fact there is a certain amount of distortion in country rock, to country rock effect of contraction, there is situation about relatively lagging behind in time in radial grouting anchor pole, be difficult to bring into play the effect of advance support, this situation is very disadvantageous in weak surrounding rock or engineering that surrouding rock deformation is had relatively high expectations, existing solution is first country rock to be implemented to pre-reinforcement or pre-timbering construction, afterwards, excavate again the construction with radial grouting anchor pole, thereby pre-reinforcement or pre-timbering construction have been set up, its construction investment has strengthened, also extended the duration.
In weak surrounding rock or engineering that surrouding rock deformation is had relatively high expectations, tunnel excavation generally adopts the construction of step excavation method or the construction of pilot heading method, in work progress, there is leading working space, for the Project of Widening of existing tunnel, in the hole of existing tunnel, space can be used as the leading working space of tunnel Widening Construction.
Utility model content
In view of this, the purpose of this utility model is to provide the leading radial grouting anchor pole of a kind of supporting, realizes the advance support function of radial grouting anchor pole, can save pre-support engineering measure, saves investment, the reduction of erection time.
The utility model adopts following scheme to realize: the radial grouting anchor pole that a kind of supporting is leading, comprise slip casting tube connector and stop grouting plug, described slip casting tube connector comprises that inside is provided with the pulp sleeve pipe of the connection core pipe of slip casting passage, front end sealing and enters to starch sleeve pipe, described pulp sleeve pipe is connected with connection core pipe front end, described enter to starch sleeve pipe with connection core pipe rear end be connected, described stop grouting plug is looped around the periphery of slip casting tube connector, described pulp sleeve pipe leading section sidewall is provided with material outlet canal, and pulp sleeve pipe front end is fixed with reinforced anchor bolt body.
Further, described pulp sleeve pipe leading section side is provided with the rubber exhaust pipe extending to into slurry sleeve pipe rearward end, the front end of described reinforced anchor bolt body is provided with anchor head, reinforced anchor bolt body is provided with front end and extends near the dual-purpose pipe of plastics of anchor head, the dual-purpose pipe of described plastics rear end is selected one with material outlet canal and rubber exhaust pipe and is connected, in described pulp sleeve pipe, be arranged with the end tube sealing A being connected with the slip casting passage front end that joins core pipe, front end sealing and its leading section sidewall of described end tube sealing A are provided with the slurry outlet A that is communicated with pulp cannula cavity, end tube sealing A leading section is arranged with the gum sleeve A that is wrapped in slurry outlet A periphery.
Further, describedly enter to starch sleeve pipe rearward end sidewall and be provided with the slurry outlet C being communicated with into slurry cannula cavity, enter to starch sleeve pipe rearward end and be arranged with the gum sleeve C that is wrapped in slurry outlet C periphery, enter to starch sleeve pipe rear end and be connected with detachable hollow bolt body, enter to starch and in sleeve pipe, be arranged with the inlet pipe being connected with the slip casting passage rear end that joins core pipe, described inlet pipe rear end is connected with detachable and is placed on the bolt grouting pipe of described hollow bolt body inside.
Further, described stop grouting plug comprises rubber tube A, rubber tube B and the rubber tube C being sealed connected together by tee piece, wherein rubber tube B and rubber tube C are wrapped in the peripheral formation of slip casting tube connector double helix multiring structure side by side, and by the securing member of being located at respectively the end, front and back of rubber tube B, rubber tube C, are fixed on the periphery of slip casting tube connector.
Further, described rubber tube A is connected with the front end of straight tube on tee piece, described rubber tube C is connected with described straight tube rear end, described rubber tube A, straight tube and rubber tube C are set in periphery and the forward and backward two ends of rubber exhaust pipe of described rubber exhaust pipe and stretch out respectively rubber tube A front end and rubber tube C rear end, and described rubber tube A front end and rubber tube C rear end and rubber exhaust pipe lateral wall are tightly connected so that form cavity between the inwall of rubber exhaust pipe outer wall and rubber tube A, straight tube and rubber tube C.
Further, the rear end of described rubber tube B is arranged with the end tube sealing B of front end sealing, described rubber tube B is tightly connected with end tube sealing B lateral wall, end tube sealing B leading section stretches in rubber tube B, the leading section of described end tube sealing B is provided with slurry outlet B and is arranged with the gum sleeve B that is wrapped in slurry outlet B periphery, and end tube sealing B rear end is connected with pre-Grouting Pipe.
Further, the rear end of described rubber exhaust pipe is connected with plastic row tracheae C.
Further, described hollow bolt body, through a backing plate, spins on hollow bolt body and is positioned at the clamp nut of backing plate rear end, and described hollow bolt body side is provided with plastic row tracheae D.
Compared with prior art, the utlity model has following beneficial effect:
(1) utilize leading working space, implement in advance radial grouting anchor pole, realized the advance support function of radial grouting anchor pole, can save pre-support engineering measure, save investment, the reduction of erection time.
(2) by elastomeric rubber tube and flexible and can bear pipe external pressure rubber exhaust pipe be assembled into sleeve pipe, and form thus the stop grouting plug of the double helix multiring structure of inflatable distortion, on the one hand, the multiring structure of inflatable distortion is stronger to the compliance of the scrambling of ground hole wall and out-of-flatness, closely connected performance between stop grouting plug and anchor pole hole wall is good, and grouting is effective; On the other hand, utilize the feature of helicoidal structure, in the situation that not affecting grouting effect, rubber exhaust pipe through stop grouting plug, has been realized the effective exhaust in mortar depositing construction in the shape of a spiral.
(3) by adjusting simply the connected mode between the dual-purpose pipe of plastics and material outlet canal and rubber exhaust pipe, realized the grouting serous fluid in bolthole from low level gradually to the full requirement of a high position, construction is convenient, workable.
Accompanying drawing explanation
Fig. 1 is slip casting tube connector organigram in the utility model embodiment;
Fig. 2 is slip casting tube connector cross section view in the utility model embodiment;
Fig. 3 is the stretching rear organigram of stop grouting plug in the utility model embodiment;
Fig. 4 is the stretching rear cross section view of stop grouting plug in the utility model embodiment;
Fig. 5 is the zoomed-in view of A in Fig. 4;
Fig. 6 is the zoomed-in view of B in Fig. 4;
Fig. 7 is stop grouting plug organigram in the utility model embodiment;
Fig. 8 is stop grouting plug cross section view in the utility model embodiment;
Fig. 9 is the utility model embodiment Construction State schematic diagram;
Figure 10 is the utility model embodiment Construction State cross section view;
Figure 11 is that the utility model embodiment is used view;
Figure 12 is that the utility model embodiment is used state cross section view;
Number in the figure explanation: 1-excavates basal plane temporarily, 2-forever excavates basal plane, 3-hollow bolt body, 4-backing plate, 5-nut, 600-slip casting tube connector, 601-connection core pipe, 602-enters to starch sleeve pipe, 603-pulp sleeve pipe, 604-inlet pipe, 605-end tube sealing A, 606 slurry outlet A, 607-gum sleeve A, 608-slurry outlet C, 609-gum sleeve C, 610-material outlet canal, 700-stop grouting plug, 701-rubber tube B, 702-rubber tube C, 703-rubber exhaust pipe, 704-end tube sealing B, 705-anchor ear, 706-slurry outlet B, 707-gum sleeve B, 708-rubber tube A, 8-reinforced anchor bolt body, 9-adapter sleeve, 10-anchor head, the dual-purpose pipe of 11-plastics, 12-bolt grouting pipe, the pre-Grouting Pipe of 13-, 14-plastic row tracheae C, 15-securing member, 16-push pipe, 17-bolthole, 18-plastic row tracheae D 19-tee piece.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below will, by specific embodiment and relevant drawings, the utility model be described in further detail.
As shown in Fig. 1 ~ 12, the radial grouting anchor pole that a kind of supporting is leading, described radial grouting anchor pole one end at the bottom of bolthole 17 holes is front end, towards one end, aperture, it is rear end, described radial grouting anchor pole comprises the slip casting tube connector 600 of front end sealing, described slip casting tube connector 600 comprises that inside is provided with the connection core pipe 601 of slip casting passage, the pulp sleeve pipe 603 of front end sealing and enter to starch sleeve pipe 602, described pulp sleeve pipe 603 is connected with connection core pipe 601 front ends, described enter to starch sleeve pipe 602 with connection core pipe 601 rear ends be connected, described pulp sleeve pipe 603 leading section sidewalls are provided with material outlet canal 610, pulp sleeve pipe 603 leading section sides are provided with the rubber exhaust pipe 703 extending to into slurry sleeve pipe 602 rearward end, described rubber exhaust pipe 703 is wire spring rubber exhaust pipe, the minimum bendable radius of described rubber exhaust pipe 703 is less than slip casting tube connector 600 exterior radius, and can bear the grouting pressure outside its pipe and keep caliber constant.
Described pulp sleeve pipe 603 front ends are fixed with reinforced anchor bolt body 8, described reinforced anchor bolt body 8 connects lengthening by adapter sleeve 9, the front end of described reinforced anchor bolt body 8 is provided with anchor head 10, reinforced anchor bolt body 8 is provided with the dual-purpose pipe 11 of plastics that front end extends to anchor head 10, the dual-purpose pipe 11 of described plastics is adopting interval to fix along reinforced anchor bolt body 8 length directions, and the dual-purpose pipe of described plastics 11 rear ends are selected one with material outlet canal 610 with rubber exhaust pipe 703 and are connected.
Full to a high position gradually from low level in order to guarantee the grouting serous fluid in bolthole 17, the connection of the dual-purpose pipe 11 of described plastics need be selected different connected modes according to the angle of inclination of bolthole 17, when bolthole 17 is inclined upwardly, low level in bolthole 17 is positioned near the material outlet canal 610 of slip casting tube connector 600, slurries are the low level place in material outlet canal 610 enters bolthole 17 directly, now, the dual-purpose pipe 11 of plastics is connected with rubber exhaust pipe 703, as stack, uses; When bolthole 17 is downward-sloping, the low level in bolthole 17 is positioned near anchor head 10, and slurries need be through near the dual-purpose pipe 11 arrival anchor heads 10 of plastics, to enter the low level place in bolthole 17, now, the dual-purpose pipe 11 of plastics is connected with material outlet canal 610, as Grouting Pipe, uses.
In described pulp sleeve pipe 603, be arranged with the end tube sealing A(605 being connected with the slip casting passage front end that joins core pipe 601), described end tube sealing A(605) sealing of front end and its leading section sidewall are provided with the slurry outlet A(606 that is communicated with pulp sleeve pipe 603 inner chambers), end tube sealing A(605) leading section is arranged with and is wrapped in slurry outlet A(605) peripheral gum sleeve A(607).
In the present embodiment, describedly enter to starch sleeve pipe 602 rearward end sidewalls and be provided with the slurry outlet C(608 being communicated with into slurry sleeve pipe 602 inner chambers), enter to starch sleeve pipe 602 rearward end be arranged be wrapped in slurry outlet C(608) peripheral gum sleeve C(609), enter to starch sleeve pipe 602 rear ends and be threaded connection detachable hollow bolt body 3, described enter to starch in sleeve pipe 602, be arranged with the inlet pipe 604 being connected with the slip casting passage rear end that joins core pipe 601, inlet pipe 604 rear ends are connected with detachably and are placed on the bolt grouting pipe 12 of described hollow bolt body 3 inside, the rear end of the bolt grouting pipe 12 extended mesopore anchor bar bodies 3 in rear end wherein.
In the present embodiment, the outer stop grouting plug 700 that is arranged with of described slip casting tube connector 600, described stop grouting plug 700 comprises the rubber tube A(708 being sealed connected together by tee piece 19), rubber tube B(701) and rubber tube C(702), rubber tube B(701 wherein) with rubber tube C(702) be wrapped in side by side the peripheral double-spiral structures that form of slip casting tube connector 600, described rubber tube A(708) be connected with the front end of straight tube on tee piece 19, described rubber tube C(702) be connected with described straight tube rear end, rubber tube B(701) be connected with the union elbow on tee piece 19, described rubber tube A(708), straight tube and rubber tube C(702) be jointly set in before the periphery and rubber exhaust pipe 703 of described rubber exhaust pipe 703, rubber tube A(708 is stretched out respectively at rear two ends) front end and rubber tube C(702) rear end, described rubber tube A(708) front end and rubber tube C(702) rear end and rubber exhaust pipe 703 lateral walls are tightly connected so that rubber exhaust pipe 703 outer walls and rubber tube A(708), straight tube and rubber tube C(702) inwall between form cavity, the rear end of described rubber exhaust pipe 703 is connected with plastic row tracheae C14.
In the present embodiment, described rubber tube B(701) rear end is arranged with the end tube sealing B(704 of front end sealing), described rubber tube B(701) with end tube sealing B(704) lateral wall is tightly connected, end tube sealing B(704) leading section stretches into rubber tube B(701) in, end tube sealing B(704) leading section is provided with slurry outlet B(706) and be arranged be wrapped in slurry outlet B(706) peripheral gum sleeve B(707), end tube sealing B(704) rear end is connected with pre-Grouting Pipe 13.
In the present embodiment, described stop grouting plug 700 is by being located at respectively rubber tube B(701), the end, front and back of rubber tube (702) tightens the periphery that part 15 is fixed on slip casting tube connector 600.
In the present embodiment, described hollow bolt body 3, through a backing plate 4, spins on hollow bolt body 3 and is positioned at the clamp nut 5 of backing plate 4 rear ends, and described hollow bolt body 3 sides are provided with plastic row tracheae D(18).
In the present embodiment, described rubber tube A(708), rubber tube B(701) and rubber tube C(702) respectively with rubber exhaust pipe 703, end tube sealing B(704) and tee piece 19 between the end that is connected be provided with anchor ear 705 to guarantee the tightness of connecting portion.
In the present embodiment, described gum sleeve A(607), gum sleeve B(707) and gum sleeve C(609) all play the effect of one way valve, utilize the contraction elasticity of rubber to stop slurries to reflux from slurry outlet.
The construction sequence of the radial grouting anchor pole that this supporting is leading:
(1) all assembling parts except hollow bolt body, backing plate, nut and plastic row tracheae D of the leading radial grouting anchor pole of this supporting are become to assembled bolt, and according to the angle of inclination of bolthole 17, determine the exact connect ion of the dual-purpose pipe 11 of plastics, when bolthole 17 is inclined upwardly, the dual-purpose pipe 11 of plastics is connected with rubber exhaust pipe 703, as stack, uses; When bolthole 17 is downward-sloping, the dual-purpose pipe 11 of plastics is connected with material outlet canal 610, as Grouting Pipe, uses; Assembled bolt is inserted and to be opened in the bolthole 17 on interim excavation basal plane 1, after utilizing push pipe 16 that assembled bolt top to permanent excavation basal plane 2 is formed by country rock one side, guarantee that the body of rod is well placed in the middle, anchor head 10 is positioned near bolthole 17 bottoms;
(2) to injected water cement mortar in pre-Grouting Pipe 13, rubber tube B(701) and rubber tube C(702) constantly expanding and being full of space between bolthole 17 hole walls and slip casting tube connector 600 forms stop grouting plug 700, rubber tube B(701 simultaneously) and rubber tube C(702) in air collect in rubber tube C(702) in the orifice part of close bolthole 17, grouting pressure there will be remarkable rising, after the voltage stabilizing scheduled time, stop to Grouting Pipe 13 slip castings and remove push pipe 16;
(3) to injected water cement mortar in bolt grouting pipe 12, cement mortar is in material outlet canal 610 enters bolthole 17, and to a high position, fill gradually from the low level of bolthole 17, simultaneously the gas in bolthole 17 is through rubber exhaust pipe 703 and plastic row tracheae C(14) outside tap, as plastic row tracheae C(14) while there is overfall in the rear end mouth of pipe, illustrate that slurries are full of, voltage stabilizing stops slip casting after the scheduled time, and shutoff plastic row tracheae C(14);
(4) cement grout in bolthole reaches after predetermined strength, and interim excavation basal plane 1 is excavated and forms permanent excavation basal plane;
(5) remove bolt grouting pipe 12, pre-Grouting Pipe 13 and plastic row tracheae C(14), and the tip that adopts reinforcement bar punctures rubber tube C(702) tube wall that is positioned at bolthole 17 apertures places to be to discharge the air collecting in wherein, then hollow bolt body 3 is installed, and in the aperture of bolthole 17, buckle backing plate 4 and with nut 5 lockings plastic row tracheae D(18 inside and outside connecting hole being installed at aperture place);
(6) to injected water cement mortar in hollow bolt body 3, mud is through slurry outlet C(608) enter bolthole 17, so that the space between stop grouting plug 700 and aperture in bolthole 17 is supplemented to slip casting, and by the air in this space through plastic row tracheae D(18) outside tap, as plastic row tracheae D(18) while there is overfall in the mouth of pipe, illustrate that slurries are full of, after the voltage stabilizing scheduled time, stop slip casting shutoff plastic row tracheae D(18), complete the construction and installation to the leading radial grouting anchor pole of this supporting.
The radial grouting anchor pole that this supporting is leading, interim excavation basal plane place in leading working space, the radial grouting anchor pole of constructing in advance, and the side by country rock after radial grouting anchor pole is arranged on to permanent excavation basal plane and forms, after radial grouting anchor pole forms effect of contraction to the distortion of country rock, carry out excavation in hole, to form permanent excavation basal plane, realized the advance support function of radial grouting anchor pole, can save pre-support engineering measure, save investment, the reduction of erection time.
Above-listed preferred embodiment; the purpose of this utility model, technical scheme and advantage are further described; institute is understood that; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. the radial grouting anchor pole that supporting is leading, it is characterized in that: comprise slip casting tube connector and stop grouting plug, described slip casting tube connector comprises that inside is provided with the pulp sleeve pipe of the connection core pipe of slip casting passage, front end sealing and enters to starch sleeve pipe, described pulp sleeve pipe is connected with connection core pipe front end, described enter to starch sleeve pipe with connection core pipe rear end be connected, described stop grouting plug is looped around the periphery of slip casting tube connector, and described pulp sleeve pipe leading section sidewall is provided with material outlet canal, and pulp sleeve pipe front end is fixed with reinforced anchor bolt body.
2. the leading radial grouting anchor pole of supporting according to claim 1, it is characterized in that: described pulp sleeve pipe leading section side is provided with the rubber exhaust pipe extending to into slurry sleeve pipe rearward end, the front end of described reinforced anchor bolt body is provided with anchor head, reinforced anchor bolt body is provided with the dual-purpose pipe of plastics that front end extends to anchor head, the dual-purpose pipe of described plastics rear end is selected one with material outlet canal and rubber exhaust pipe and is connected, in described pulp sleeve pipe, be arranged with the end tube sealing A being connected with the slip casting passage front end that joins core pipe, front end sealing and its leading section sidewall of described end tube sealing A are provided with the slurry outlet A that is communicated with pulp cannula cavity, end tube sealing A leading section is arranged with the gum sleeve A that is wrapped in slurry outlet A periphery.
3. the leading radial grouting anchor pole of supporting according to claim 1, it is characterized in that: described in enter to starch sleeve pipe rearward end sidewall and be provided with the slurry outlet C being communicated with into slurry cannula cavity, enter to starch sleeve pipe rearward end and be arranged with the gum sleeve C that is wrapped in slurry outlet C periphery, enter to starch sleeve pipe rear end and be connected with detachable hollow bolt body, enter to starch and in sleeve pipe, be arranged with the inlet pipe being connected with the slip casting passage rear end that joins core pipe, described inlet pipe rear end is connected with detachable and is placed on the bolt grouting pipe of described hollow bolt body inside.
4. the leading radial grouting anchor pole of supporting according to claim 1, it is characterized in that: described stop grouting plug comprises rubber tube A, rubber tube B and the rubber tube C being sealed connected together by tee piece, wherein rubber tube B and rubber tube C are wrapped in the peripheral formation of slip casting tube connector double helix multiring structure side by side, and by the securing member of being located at respectively the end, front and back of rubber tube B, rubber tube C, are fixed on the periphery of slip casting tube connector.
5. the leading radial grouting anchor pole of supporting according to claim 4, it is characterized in that: described rubber tube A is connected with the front end of straight tube on tee piece, described rubber tube C is connected with described straight tube rear end, described rubber tube A, straight tube and rubber tube C are set in before the periphery and rubber exhaust pipe of described rubber exhaust pipe, rubber tube A front end and rubber tube C rear end are stretched out respectively in rear two ends, described rubber tube A front end and rubber tube C rear end and rubber exhaust pipe lateral wall are tightly connected so that rubber exhaust pipe outer wall and rubber tube A, between the inwall of straight tube and rubber tube C, form cavity.
6. the leading radial grouting anchor pole of supporting according to claim 4, it is characterized in that: the rear end of described rubber tube B is arranged with the end tube sealing B of front end sealing, described rubber tube B is tightly connected with end tube sealing B lateral wall, end tube sealing B leading section stretches in rubber tube B, the leading section of described end tube sealing B is provided with slurry outlet B and is arranged with the gum sleeve B that is wrapped in slurry outlet B periphery, and end tube sealing B rear end is connected with pre-Grouting Pipe.
7. the radial grouting anchor pole leading according to the supporting described in claim 2 or 5, is characterized in that: the rear end of described rubber exhaust pipe is connected with plastic row tracheae C.
8. the leading radial grouting anchor pole of supporting according to claim 3, is characterized in that: described hollow bolt body, through a backing plate, spins on hollow bolt body and is positioned at the clamp nut of backing plate rear end, and described hollow bolt body side is provided with plastic row tracheae D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420119151.4U CN203742639U (en) | 2014-03-18 | 2014-03-18 | Radial grouting anchor rod with advancing support function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420119151.4U CN203742639U (en) | 2014-03-18 | 2014-03-18 | Radial grouting anchor rod with advancing support function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203742639U true CN203742639U (en) | 2014-07-30 |
Family
ID=51342455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420119151.4U Withdrawn - After Issue CN203742639U (en) | 2014-03-18 | 2014-03-18 | Radial grouting anchor rod with advancing support function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203742639U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867221A (en) * | 2014-03-18 | 2014-06-18 | 福州市规划设计研究院 | Advanced supporting and protecting radial grouting anchoring rod and construction method of advanced supporting and protecting radial grouting anchoring rod |
| CN112177647A (en) * | 2020-09-23 | 2021-01-05 | 中铁第四勘察设计院集团有限公司 | Grouting, exhausting and pressure stabilizing device for anchor rod hole of tunnel arch part and construction method |
-
2014
- 2014-03-18 CN CN201420119151.4U patent/CN203742639U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867221A (en) * | 2014-03-18 | 2014-06-18 | 福州市规划设计研究院 | Advanced supporting and protecting radial grouting anchoring rod and construction method of advanced supporting and protecting radial grouting anchoring rod |
| CN103867221B (en) * | 2014-03-18 | 2016-03-23 | 福州市规划设计研究院 | The radial grouting anchor pole that supporting is advanced and construction method thereof |
| CN112177647A (en) * | 2020-09-23 | 2021-01-05 | 中铁第四勘察设计院集团有限公司 | Grouting, exhausting and pressure stabilizing device for anchor rod hole of tunnel arch part and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140730 Effective date of abandoning: 20160323 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |