CN104018864B - The radial anchor structure of advance support and construction method thereof - Google Patents
The radial anchor structure of advance support and construction method thereof Download PDFInfo
- Publication number
- CN104018864B CN104018864B CN201410292625.XA CN201410292625A CN104018864B CN 104018864 B CN104018864 B CN 104018864B CN 201410292625 A CN201410292625 A CN 201410292625A CN 104018864 B CN104018864 B CN 104018864B
- Authority
- CN
- China
- Prior art keywords
- anchor
- bolthole
- radial
- basal plane
- rear end
- 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.)
- Active
Links
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to the radial anchor structure of a kind of advance support and construction method thereof, it is characterized in that: utilize the interim basal plane of advanced working space to construct in advance radial anchor pole, achieve the advance support function of radial anchor pole.According to interim basal plane and the permanent relativeness excavating basal plane, determine the interim orifice position of bolthole, angle of inclination and depth of pore forming, be positioned at permanent excavation basal plane at radial anchor pole and be provided with splicing sleeve by country rock side, splicing sleeve front end connects anchor bar body A, anchor bar body A front end outer race is provided with anchor head, anchor head outer race is provided with can the keeper of fixed radial anchor pole, splicing sleeve rear end connects anchor bar body B, splicing sleeve rear perpheral is arranged with anchor tail A, anchor tail A rear end is provided with blind end, after permanent excavation basal plane is formed, blind end described in mechanical removal is to form the anchor tail B of open rearward end, from anchor tail B rear end by splicing sleeve skyhook body B, anchor bar body B rear end can add backing plate and nut, at jury anchor rod aperture mouth, place is provided with Grouting Pipe, stop grouting plug and stack.
Description
technical field:
The present invention relates to construction of tunnel or geotechnical engineering field, be specifically related to the radial anchor structure of a kind of advance support and construction method thereof.
background technology:
Radial anchor pole can improve the stability of tunnel surrounding, and can form certain thickness surrounding rock consolidation circle at tunnel perimeter, be the extremely important supporting measure be also in daily use in construction of tunnel.But, radial anchor pole generally forever excavates in tunnel and just to come into effect after basal plane is formed and to play support action, be difficult to form support action to the tunnel surrouding rock deformation of forever excavating before basal plane is formed, obviously, existing radial mooring rod technique does not possess the function of advance support, and its support capacity is not fully used in engineering.In Practical Project, normal employing pre-reinforcement or pre support measure, to control the surrouding rock deformation before tunnel excavation, then the construction of the supporting measure such as excavation and radial anchor pole in hole is carried out, because adding pre-reinforcement or pre support measure, its construction investment is comparatively large, and the duration is also longer.How to realize radial anchor pole to tunnel forever excavate basal plane formed before surrouding rock deformation formed support action be the technical issues that need to address of the present invention.
summary of the invention:
The invention provides the radial anchor structure of a kind of advance support and construction method thereof, the radial anchor structure of this advance support and construction method thereof are conducive to the surrouding rock deformation realized tunnel forever excavates before basal plane is formed and form pre support effect.
The technical solution used in the present invention is:
The radial anchor structure of advance support of the present invention, it is characterized in that, comprise following structure: the rear end of described radial anchor pole is provided with splicing sleeve, described splicing sleeve front end connects anchor bar body A, described anchor bar body A front end outer race is provided with anchor head, described anchor head outer race is provided with keeper, described splicing sleeve rear end connects anchor bar body B, described splicing sleeve rear perpheral is arranged with anchor tail A, the rear end of described anchor tail A is provided with blind end, described blind end can adopt mechanical means to remove, to form the anchor tail B of open rearward end, from the rear end of described anchor tail B by described splicing sleeve skyhook body B, described anchor bar body B rear end can add backing plate and nut, described anchor head outer wall is provided with positive stop key A and positive stop key B, described anchor head rear end is provided with annular catching groove, described keeper comprises spiral reinforcement and spring leaf, described spring leaf has four limbs and is circularly and evenly distributed along described spiral reinforcement, described spring leaf and described spiral reinforcement are welded into entirety, and described spring leaf rear end is provided with button hook.
Further, above-mentioned keeper adopts by described spiral reinforcement and is enclosed between the positive stop key A of described anchor head and positive stop key B outside precession method, described keeper can in the scope between described positive stop key A and positive stop key B before and after be free to slide, but can not skid off this scope, the annular catching groove of the button hook that its sliding distance must meet described spring leaf and described anchor head can the requirement that is separated of interlocking or mutual disengagement.
Further, above-mentioned button hook and annular catching groove interlocking time, the insertion of described radial anchor pole in bolthole operation in place can be facilitated, after described radial anchor pole is in place in bolthole, by push rod to anchor bar body A applied thrust, the front end of keeper spring leaf is made to push against country rock at the bottom of bolthole hole, and anchor head is slided at the bottom of bolthole hole, to throw off mutually with annular catching groove to force described button hook and be separated, now, the rear end of described spring leaf outwards can be opened and be supported on bolthole hole wall under its own resilient effect, thus, described radial anchor pole is fixed on the desired location in bolthole, skid off from bolthole to prevent radial anchor pole.
Further, stack is laid with in above-mentioned bolthole, described stack interval is fixed on described anchor bar body A, described stack front end extends to described anchor head, rear end extend to be positioned at interim basal plane bolthole aperture beyond, described bolthole aperture place is provided with Grouting Pipe, stack and stop grouting plug.
Further, above-mentioned splicing sleeve all adopts with the connected mode between anchor head with the connected mode between described anchor bar body A, anchor bar body B and anchor tail A and described anchor bar body A respectively and is threaded.
The present invention adopts radial anchor structure to carry out the construction method of advance support, it is characterized in that, before permanent excavation basal plane excavation construction, carries out boring and the radial anchor pole of construction and installation of bolthole in the working space at interim basal plane place.
Further, its concrete construction sequence is as follows:
(1) according to interim basal plane and the permanent relativeness excavating basal plane, carry out the general arrangement design of radial anchor pole, it is vertical or quadrature arrangement that radial anchor pole is tried one's best with forever excavating basal plane, when operation limited space, adopts close to orthogonal wide-angle arrangement form;
(2) according to the general arrangement of radial anchor pole, the locus in interim aperture being positioned at interim basal plane place of the radial anchor pole of each root, the angle of inclination of bolthole and depth of pore forming is determined;
(3) anchor head of radial anchor pole, keeper, anchor bar body A, splicing sleeve and anchor tail A are assembled into entirety, by interlocking for the annular catching groove of the button hook of described keeper rear end and described anchor head rear end, and stack interval are fixed on anchor bar body A;
(4) carry out after the boring of bolthole and the operation of clear hole complete in the working space at interim basal plane place, the radial anchor pole assembled is inserted in bolthole, and utilize push rod that radial anchor pole is headed into precalculated position, the splicing sleeve of radial anchor pole is made to be positioned at permanent excavation basal plane by near country rock side, within the blind end of anchor tail A rear end is positioned at excavation scope, anchor head is positioned near at the bottom of bolthole hole, by push rod to anchor bar body A applied thrust, the front end of keeper is made to push against country rock at the bottom of bolthole hole, and anchor head is slided at the bottom of bolthole hole, to throw off mutually with annular catching groove to force described button hook and be separated, now, the spring leaf rear end of keeper outwards can be opened and be supported on bolthole hole wall under its own resilient effect, thus radial anchor pole is fixed in bolthole, afterwards, push rod is extracted out again from bolthole,
(5) at bolthole interim aperture place, Grouting Pipe, stack and stop grouting plug are installed, and by Grouting Pipe to pressure injection cement mortar in bolthole, after overfall appears in the stack mouth of pipe, stop slip casting; In order to ensure that the slurries in bolthole fill to a high position gradually from low level, when anchor head is positioned at the low level of anchor tail A, stack should be utilized to slip casting in bolthole, utilizing Grouting Pipe to be vented outside bolthole simultaneously;
(6) installation of the radial anchor pole of next root is carried out, until whole radial anchor bolt construction is complete and after forming support action, forever excavate the excavation construction of basal plane, after permanent excavation basal plane is formed, remove the blind end of anchor tail A rear end, skyhook body B again, at bolthole aperture seat slurry, installs backing plate and fastening nut.
Further, above-mentioned interim basal plane is the Internal periphery basal plane of existing tunnel structure, or the Internal periphery basal plane of advance heading.
Compared with prior art, the present invention improves existing anchor structure, is provided with anchor tail and keeper, so that anchor bar body is placed in the middle in bolthole, location is fixing and later stage spreading; It utilizes advanced temporary working space, before permanent excavation basal plane excavation construction, and radial anchor pole of constructing in advance, to form surrounding rock consolidation circle in permanent excavation basal plane periphery, achieve the advance support function of radial anchor pole, pre support measure and construction investment can be saved, the reduction of erection time.
accompanying drawing illustrates:
Fig. 1 is radial anchor pole advance support rough package drawing in the embodiment of the present invention
Fig. 2 is radial anchor bolt construction state generalized section in the embodiment of the present invention
Fig. 3 is radial anchor pole using state generalized section in the embodiment of the present invention
Fig. 4 is radial anchor pole anchor head schematic diagram in the embodiment of the present invention
Fig. 5 is the A-A sectional drawing in the embodiment of the present invention in radial anchor pole anchor head schematic diagram
Fig. 6 is radial anchor pole keeper schematic diagram in the embodiment of the present invention
Fig. 7 is the B view in the embodiment of the present invention in radial anchor pole keeper schematic diagram
Fig. 8 is radial anchor pole anchor head and keeper assembling generalized section in the embodiment of the present invention
Fig. 9 is radial anchor pole anchor tail A schematic diagram in the embodiment of the present invention
Figure 10 is radial anchor pole anchor tail B schematic diagram in the embodiment of the present invention
Number in the figure illustrates: the radial anchor pole of 1-, and 2-forever excavates basal plane, 3-existing tunnel structure, 4-newly built tunnels structure, the interim basal plane of 5-, 6-bolthole, 7-stack, 8-Grouting Pipe, 9-stop grouting plug, axis, 10-tunnel, 101-anchor head, 102-keeper, 103-anchor bar body A, 104-splicing sleeve, 105-anchor tail A, 106-anchor bar body B, 107-backing plate, 108-nut, 109-anchor tail B, 1011-positive stop key A, 1012-positive stop key B, 1013-annular catching groove, 1021-spiral reinforcement, 1022-spring leaf, 1023-button hook.
detailed description of the invention:
Below using existing tunnel original position widening project as specific embodiment and relevant drawings, the present invention is described in further detail.
The radial anchor structure of advance support of the present invention, described radial anchor pole 1 is front end towards one end at the bottom of bolthole 6 hole, be rear end towards one end, bolthole 6 aperture, be positioned at permanent excavation basal plane 2 at radial anchor pole 1 and be provided with splicing sleeve 104 by near country rock side, described splicing sleeve 104 front end connects anchor bar body A(103), described anchor bar body A(103) front end outer race is provided with anchor head 101, described anchor head 101 outer race is provided with keeper 102, described splicing sleeve 104 rear end connects anchor bar body B(106), described splicing sleeve 104 rear perpheral is arranged with anchor tail A(105), described anchor tail A(105) rear end be provided with blind end, the effect of described blind end prevents cement mortar from entering splicing sleeve 104 inside, described blind end can adopt mechanical means to remove, to form the anchor tail B(109 of open rearward end), from described anchor tail B(109) rear end by described splicing sleeve 104 skyhook body B(106), described anchor bar body B(106) rear end can add backing plate 107 and nut 108,
(1) anchor head 101 outer wall is provided with positive stop key A(1011) and positive stop key B(1012), described anchor head 101 rear end is provided with annular catching groove 1013, described keeper 102 comprises spiral reinforcement 1021 and spring leaf 1022, described spring leaf 1022 has four limbs and is circularly and evenly distributed along described spiral reinforcement 1021, described spring leaf 1022 is welded into entirety with described spiral reinforcement 1021, and described spring leaf 1022 rear end is provided with button hook 1023;
(2) described keeper 102 adopts the positive stop key A(1011 being enclosed within described anchor head 101 outside precession method by described spiral reinforcement 1021) and positive stop key B(1012) between, described keeper 102 can at described positive stop key A(1011) and positive stop key B(1012) between scope in before and after be free to slide, but can not skid off this scope, the annular catching groove 1013 of the button hook 1023 that its sliding distance must meet described spring leaf 1022 rear end and described anchor head 101 rear end can be interlocking or throw off the requirement be separated;
(3) when described button hook 1023 is interlocking with annular catching groove 1013, the insertion of described radial anchor pole 1 in bolthole 6 operation in place can be facilitated, after described radial anchor pole 1 is in place in bolthole 6, by push rod to anchor bar body A(103) applied thrust, the front end of keeper 102 spring leaf 1022 is made to push against country rock at the bottom of bolthole 6 hole, and anchor head 101 is slided at the bottom of bolthole 6 hole, throw off mutually to force described button hook 1023 and annular catching groove 1013 and be separated, now, the rear end of described spring leaf 1022 outwards can be opened and is supported on bolthole 6 hole wall under its own resilient effect, thus, described radial anchor pole 1 is fixed on the desired location in bolthole 6, skid off from bolthole 6 to prevent radial anchor pole 1,
(4) stack 7 is laid with in described bolthole 6, described stack 7 interval is fixed on described anchor bar body A(103) on, described stack 7 front end extends to described anchor head 101, rear end extend to be positioned at interim basal plane 5 bolthole 6 aperture beyond, described bolthole 6 aperture place is provided with stack 7, Grouting Pipe 8 and stop grouting plug 9.
(5) described splicing sleeve 104 respectively and described anchor bar body A(103), anchor bar body B(106) and anchor tail A(105) between connected mode, and described anchor bar body A(103) and anchor head 101 between connected mode, all adopt be threaded;
(6) described interim basal plane 5 can be the Internal periphery basal plane of existing tunnel structure 3, also can be the Internal periphery basal plane of advance heading, and is not limited only to described Internal periphery basal plane.
The present invention adopts radial anchor structure to carry out the construction method of advance support, comprises following construction sequence:
(1) according to interim basal plane 5 and the permanent relativeness excavating basal plane 2, carry out the general arrangement design of radial anchor pole 1, radial anchor pole 1 is tried one's best and is forever excavated basal plane 2 in vertical or quadrature arrangement, when operation limited space, adopts close to orthogonal wide-angle arrangement form;
(2) according to the general arrangement of radial anchor pole 1, determine the locus in interim aperture being positioned at interim basal plane 5 place of the radial anchor pole 1 of each root, the angle of inclination of bolthole 6 and depth of pore forming, and carry out orifice position setting-out on interim basal plane 5;
(3) by the anchor head 101 of radial anchor pole 1, keeper 102, anchor bar body A(103), splicing sleeve 104 and anchor tail A(105) be assembled into entirety, by interlocking with the annular catching groove 1013 of described anchor head 101 rear end for the button hook 1023 of described keeper 102 rear end, and stack 7 interval is fixed on anchor bar body A(103) on;
(4) carry out after the boring of bolthole 6 and the operation of clear hole complete in the working space at interim basal plane 5 place, the radial anchor pole 1 assembled is inserted in bolthole 6, and utilize push rod that radial anchor pole 1 is headed into precalculated position, the splicing sleeve 104 of radial anchor pole 1 is made to be positioned at permanent excavation basal plane 2 by near country rock side, anchor tail A(105) within the blind end of rear end is positioned at excavation scope, anchor head 101 is positioned near at the bottom of bolthole 6 hole, by push rod to anchor bar body A(103) applied thrust, the front end of keeper 102 is made to push against country rock at the bottom of bolthole 6 hole, and anchor head 101 is slided at the bottom of bolthole 6 hole, throw off mutually with the annular catching groove 1013 of the button hook 1023 with anchor head 101 rear end that force keeper 102 spring leaf 1022 rear end and be separated, now, spring leaf 1022 rear end of keeper 102 outwards can be opened and is supported on bolthole 6 hole wall under its own resilient effect, thus radial anchor pole 1 is fixed in bolthole 6, afterwards, push rod is extracted out again from bolthole 6,
(5) at the interim aperture place of bolthole 6, stack 7, Grouting Pipe 8 and stop grouting plug 9 are installed, and by Grouting Pipe 8 to pressure injection cement mortar in bolthole 6, after overfall appears in stack 7 mouth of pipe, stop slip casting; In order to ensure that slurries in bolthole 6 fill, when anchor head 101 is positioned at anchor tail A(105 to a high position gradually from low level) low level time, stack 7 should be utilized to slip casting in bolthole 6, utilize Grouting Pipe 8 to be vented outside bolthole 6 simultaneously;
(6) installation of the radial anchor pole 1 of next root is carried out, until whole radial anchor pole 1 is constructed complete and after forming support action, forever excavate the excavation construction of basal plane 2, after permanent excavation basal plane 2 is formed, remove anchor tail A(105) blind end of rear end, to form the anchor tail B(109 of open rearward end), then from anchor tail B(109) rear end by described splicing sleeve 104 skyhook body B(106), at bolthole 6 aperture seat slurry, backing plate 107 is installed and fastening nut 108.
Above-listed preferred embodiment; the object, technical solutions and advantages of the present invention are further described; be understood that; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention; within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. the radial anchor structure of advance support, it is characterized in that, comprise following structure: the rear end of described radial anchor pole is provided with splicing sleeve, described splicing sleeve front end connects anchor bar body A, described anchor bar body A front end outer race is provided with anchor head, described anchor head outer race is provided with keeper, described splicing sleeve rear end connects anchor bar body B, described splicing sleeve rear perpheral is arranged with anchor tail A, the rear end of described anchor tail A is provided with blind end, described blind end can adopt mechanical means to remove, to form the anchor tail B of open rearward end, from the rear end of described anchor tail B by described splicing sleeve skyhook body B, described anchor bar body B rear end adds backing plate and nut, described anchor head outer wall is provided with positive stop key A and positive stop key B, described anchor head rear end is provided with annular catching groove, described keeper comprises spiral reinforcement and spring leaf, described spring leaf has four limbs and is circularly and evenly distributed along described spiral reinforcement, described spring leaf and described spiral reinforcement are welded into entirety, and described spring leaf rear end is provided with button hook.
2. the radial anchor structure of advance support according to claim 1, it is characterized in that: described keeper adopts by described spiral reinforcement and is enclosed between the positive stop key A of described anchor head and positive stop key B outside precession method, described keeper can in the scope between described positive stop key A and positive stop key B before and after be free to slide, but can not skid off this scope, the annular catching groove of the button hook that its sliding distance must meet described spring leaf and described anchor head can the requirement that is separated of interlocking or mutual disengagement.
3. the radial anchor structure of advance support according to claim 1, it is characterized in that: described button hook and annular catching groove interlocking time, the insertion of described radial anchor pole in bolthole operation in place can be facilitated, after described radial anchor pole is in place in bolthole, by push rod to anchor bar body A applied thrust, the front end of keeper spring leaf is made to push against country rock at the bottom of bolthole hole, and anchor head is slided at the bottom of bolthole hole, to throw off mutually with annular catching groove to force described button hook and be separated, now, the rear end of described spring leaf outwards can be opened and be supported on bolthole hole wall under its own resilient effect, thus, described radial anchor pole is fixed on the desired location in bolthole, skid off from bolthole to prevent radial anchor pole.
4. the radial anchor structure of advance support according to claim 1, it is characterized in that: in bolthole, be laid with stack, described stack interval is fixed on described anchor bar body A, described stack front end extends to described anchor head, rear end extend to be positioned at interim basal plane bolthole aperture beyond, described bolthole aperture place is provided with Grouting Pipe, stack and stop grouting plug.
5. the radial anchor structure of advance support according to claim 1, is characterized in that: described splicing sleeve all adopts with the connected mode between anchor head with the connected mode between described anchor bar body A, anchor bar body B and anchor tail A and described anchor bar body A respectively and is threaded.
6. use radial anchor structure described in claim 1 to carry out a construction method for advance support, it is characterized in that, before permanent excavation basal plane excavation construction, in the working space at interim basal plane place, carry out boring and the radial anchor pole of construction and installation of bolthole.
7. construction method according to claim 6, is characterized in that:
According to interim basal plane and the permanent relativeness excavating basal plane, carry out the general arrangement design of radial anchor pole, it is vertical or quadrature arrangement that radial anchor pole is tried one's best with forever excavating basal plane, when operation limited space, adopts close to orthogonal wide-angle arrangement form;
According to the general arrangement of radial anchor pole, determine the locus in interim aperture being positioned at interim basal plane place of the radial anchor pole of each root, the angle of inclination of bolthole and depth of pore forming;
The anchor head of radial anchor pole, keeper, anchor bar body A, splicing sleeve and anchor tail A are assembled into entirety, by interlocking for the annular catching groove of the button hook of described keeper rear end and described anchor head rear end, and stack interval are fixed on anchor bar body A;
Carry out after the boring of bolthole and the operation of clear hole complete in the working space at interim basal plane place, the radial anchor pole assembled is inserted in bolthole, and utilize push rod that radial anchor pole is headed into precalculated position, the splicing sleeve of radial anchor pole is made to be positioned at permanent excavation basal plane by near country rock side, within the blind end of anchor tail A rear end is positioned at excavation scope, anchor head is positioned near at the bottom of bolthole hole, by push rod to anchor bar body A applied thrust, the front end of keeper is made to push against country rock at the bottom of bolthole hole, and anchor head is slided at the bottom of bolthole hole, to throw off mutually with annular catching groove to force described button hook and be separated, now, the spring leaf rear end of keeper outwards can be opened and be supported on bolthole hole wall under its own resilient effect, thus radial anchor pole is fixed in bolthole, afterwards, push rod is extracted out again from bolthole,
At bolthole interim aperture place, Grouting Pipe, stack and stop grouting plug are installed, and by Grouting Pipe to pressure injection cement mortar in bolthole, after overfall appears in the stack mouth of pipe, stop slip casting; In order to ensure that the slurries in bolthole fill to a high position gradually from low level, when anchor head is positioned at the low level of anchor tail A, stack should be utilized to slip casting in bolthole, utilizing Grouting Pipe to be vented outside bolthole simultaneously;
Carry out the installation of the radial anchor pole of next root, until whole radial anchor bolt construction is complete and after forming support action, forever excavate the excavation construction of basal plane, after permanent excavation basal plane is formed, remove the blind end of anchor tail A rear end, skyhook body B again, at bolthole aperture seat slurry, installs backing plate and fastening nut.
8. construction method according to claim 6, is characterized in that: described interim basal plane is the Internal periphery basal plane of existing tunnel structure, or the Internal periphery basal plane of advance heading.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410292625.XA CN104018864B (en) | 2014-06-27 | 2014-06-27 | The radial anchor structure of advance support and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410292625.XA CN104018864B (en) | 2014-06-27 | 2014-06-27 | The radial anchor structure of advance support and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104018864A CN104018864A (en) | 2014-09-03 |
| CN104018864B true CN104018864B (en) | 2016-03-23 |
Family
ID=51435823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410292625.XA Active CN104018864B (en) | 2014-06-27 | 2014-06-27 | The radial anchor structure of advance support and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104018864B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107762518B (en) * | 2016-08-18 | 2019-05-31 | 中交第三公路工程局有限公司 | Tunnel cantilevered advance anchor bolt drivage method |
| CN107218071A (en) * | 2017-07-31 | 2017-09-29 | 中铁十七局集团第工程有限公司 | The quick grouting device of hollow bolt in the range of applicable 360 ° |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3707036A1 (en) * | 1987-03-05 | 1988-09-15 | Hausherr & Soehne Rudolf | Fastening system consisting of a drillhole and of a rock tie fastenable in this |
| CN1415805A (en) * | 2002-12-12 | 2003-05-07 | 上海交通大学 | Ship anchor type grouting open type earth anchor anchor head |
| CN2804390Y (en) * | 2005-04-13 | 2006-08-09 | 李晓峰 | Harm gas preventing hollowed injecting paste anchor rod |
| CN201158820Y (en) * | 2008-02-18 | 2008-12-03 | 成都现代万通锚固技术有限公司 | Full threaded mortar anchor bar |
| CN101768966A (en) * | 2010-01-26 | 2010-07-07 | 成都现代万通锚固技术有限公司 | Pressure grouting device for overall length spiral anchor rod and construction process |
| EP2423432A3 (en) * | 2010-08-25 | 2013-05-15 | Amir Peled | Anchoring apparatus and method of use |
| CN204002881U (en) * | 2014-06-27 | 2014-12-10 | 福州市规划设计研究院 | Advance support is anchor structure radially |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1039986A (en) * | 1976-06-21 | 1978-10-10 | Donald B. Haslam | Rock bolt assembly |
-
2014
- 2014-06-27 CN CN201410292625.XA patent/CN104018864B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3707036A1 (en) * | 1987-03-05 | 1988-09-15 | Hausherr & Soehne Rudolf | Fastening system consisting of a drillhole and of a rock tie fastenable in this |
| CN1415805A (en) * | 2002-12-12 | 2003-05-07 | 上海交通大学 | Ship anchor type grouting open type earth anchor anchor head |
| CN2804390Y (en) * | 2005-04-13 | 2006-08-09 | 李晓峰 | Harm gas preventing hollowed injecting paste anchor rod |
| CN201158820Y (en) * | 2008-02-18 | 2008-12-03 | 成都现代万通锚固技术有限公司 | Full threaded mortar anchor bar |
| CN101768966A (en) * | 2010-01-26 | 2010-07-07 | 成都现代万通锚固技术有限公司 | Pressure grouting device for overall length spiral anchor rod and construction process |
| EP2423432A3 (en) * | 2010-08-25 | 2013-05-15 | Amir Peled | Anchoring apparatus and method of use |
| CN204002881U (en) * | 2014-06-27 | 2014-12-10 | 福州市规划设计研究院 | Advance support is anchor structure radially |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104018864A (en) | 2014-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103321653B (en) | Method of treating lining after collapse of underground cavern crown | |
| CN103669369B (en) | The supporting and protection structure of foundation ditch and supporting method | |
| CN101761084B (en) | Method for forming anchor in shielding manner in fluidized sand layer | |
| WO2010058933A3 (en) | Tunnel excavation method | |
| CN102660955B (en) | Quick construction method for foundation pit slope support | |
| CN109853399A (en) | Big section for arch bridge tilts tunnel type skewback structure and its construction method | |
| CN107237332A (en) | A kind of foundation pit stope support containing drifting sand layer method of use composite soil-nailed retaining wall | |
| CN105909262B (en) | A kind of bored tunnel driving method | |
| CN206034454U (en) | Supporting construction | |
| CN103939115B (en) | A kind of method of half shallow mining method hangar tunnel and structure | |
| CN104018864B (en) | The radial anchor structure of advance support and construction method thereof | |
| CN103422873A (en) | Strong-strength extendable anchor rod | |
| CN103061341A (en) | Middle-excavating pile-sinking construction method | |
| CN104533431A (en) | Construction method for multiple-arch tunnel without middle walls | |
| RU2485318C1 (en) | Method to construct station tunnels with low subsidence of earth surface | |
| JP5382432B2 (en) | Excavation method of adjacent twin tunnel | |
| CN204002881U (en) | Advance support is anchor structure radially | |
| CN203701112U (en) | Composite foundation grouting steel tube type reinforced slope | |
| CN103306248A (en) | High dam spillway foundation drainage system and excavation method | |
| CN104389609A (en) | No-blasting mechanical digging method | |
| CN209083288U (en) | The advanced leverage of IV class of tunnel, V class surrounding rock encircles damping reinforcement structure | |
| KR101951684B1 (en) | Expandable cast-in-place pile construction method | |
| CN109630174B (en) | Subway tunnel safety construction device and construction method | |
| CN203321523U (en) | Large-span high-side-wall underground space building | |
| CN203188220U (en) | Deep foundation pit supporting structure |
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 | ||
| CP03 | Change of name, title or address |
Address after: 350108 No.1, Gaoxin Avenue, high tech Zone, Minhou County, Fuzhou City, Fujian Province Patentee after: Fuzhou planning and Design Institute Group Co.,Ltd. Address before: No. 188, Hudong Road, Fuzhou, Fujian 350003 Patentee before: FUZHOU PLANNING DESIGN & Research Institute |
|
| CP03 | Change of name, title or address |