CN1106096A - Pipe anchor rod technology and its anchor rod - Google Patents
Pipe anchor rod technology and its anchor rod Download PDFInfo
- Publication number
- CN1106096A CN1106096A CN 94110039 CN94110039A CN1106096A CN 1106096 A CN1106096 A CN 1106096A CN 94110039 CN94110039 CN 94110039 CN 94110039 A CN94110039 A CN 94110039A CN 1106096 A CN1106096 A CN 1106096A
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- anchor
- rod
- slip casting
- pipe
- anchor pole
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Abstract
The tubular anchor rod technology for slope protection wall in foundation pit excavation during construction features use of anchor rod composed of spriral drilling bit, drill rod, connecting hoop and anchoring screw bolt, and simultaneous implementations of inserting rod, grouting and installing grout retaining plug in the process of drilling, so increasing working efficiency by 5-10 times.
Description
The present invention relates to the anchoring of excavation of foundation pit retaining wall in a kind of infrastructure construction.
Foundation ditch in the at present domestic and international highrise building is opened control dado engineering anchor pole technology commonly used, all is to use reinforcing bar formula anchor pole, creeps into pore-forming during construction earlier, insert anchor pole and Grouting Pipe then, stifled slurry plug is installed, is implemented slip casing by pressure by Grouting Pipe again, give the stress drawing at last and just can finish.Not only efficiency of construction is low, and at complex formation, particularly sand-pebble layer can't carry out anchoring construction because pore-forming is difficult.
The purpose of this invention is to provide a kind of novel anchor rod of in pore-forming creeps into, finishing the pipe anchor rod technology of each procedure simultaneously and implementing this technology.
The object of the present invention is achieved like this:
1, design novel anchor rod, it comprises that augers, drilling rod, box cupling, anchor draw bolt, and main points are that the augers skeleton is a tubulose, and cylindrical is shaped on spiral vane; Have on the tube wall by regularly arranged injected hole; Chisel edge has apex point, and the rear end is welded with awl button nut.Drilling rod also is a tubing, is shaped on regularly arranged injected hole on the tube wall, and pier thick also car in two ends has taper spiral shell button, and the drilling rod that is used in non-anchoring section does not have injected hole.
2, the pipe anchor rod construction technology is: use roof-bolter to drive pipe anchor rod and give pressure boring, after drill bit and slip casting drilling rod enter anchoring section fully, adjunction transmission water tap between roof-bolter unit head and anchor pole, and connect with filling system, by the injected hole on the pipe anchor rod, the marginal not slurry is crept on the limit, after waiting to get into projected depth and reaching the slip casting requirement, anchor pole is stayed in the hole, and the anchor of burn-oning then draws bolt to carry out stretch-draw anchor.Slip casting can treat that also boring reaches projected depth, and after stopping to creep into, inserts filling system again and carry out slip casting.
Advantage of the present invention is: owing to use pipe anchor rod, can finish pore-forming and inserted link operation in boring procedure, and carry out slip casting by anchor pole itself, owing to soil densification backward, compacting, formed " stifled slurry plug " naturally during augers creeps into, thereby needn't the stifled slurry plug of other dress.The result is that operation is simplified greatly, improves work efficiency, ensures the quality of products, and is applicable to the anchoring processing on the various stratum except that batholith.
Details of the present invention elaborates by following examples and accompanying drawing thereof.
Fig. 1 is an anchor structure schematic diagram of the present invention.
Fig. 2 is an anchoring situation schematic diagram of the present invention.
With reference to the accompanying drawings 1, anchor pole comprises that augers, drilling rod, box cupling and anchor draw four parts such as bolt to form.Drill bit 1 is with diameter 57-89(mm) the geology core barrel is skeleton, being welded with pitch on the external diameter is 120(mm) helical blade 3, the external diameter of blade 3 is 100-200(mm), vane thickness 5-8(mm), with processing of 40# steel plate or 45# round steel car system, on the excircle of drill bit 1 skeleton, be drilled with the injected hole 4 of φ=6-10mm between each pitch along the 90 ° of positions that circumferentially interlace.The front end of skeleton is welded with fishtail apex point 2, and the rear end is welded with awl button nut 5.
Drilling rod 6 is selected diameter 50-63.5(mm for use) the geologic drilling rod material makes every cut lengths 3000-4000(mm), the thick and car of two ends pier have 6 buttons/cun, 1: 5 interlocking hand of tapering pin thread is so that be connected with box cupling 8 with augers 1.On the cylindrical of drilling rod 6 at a distance of 200(mm) be drilled with the injected hole 7 of φ=4-6mm along circumferentially interlacing 90 °, the drilling rod 6 that is used for non-anchoring section is not with injected hole.
Anchor draws bolt 10 to adopt 45# round steel car system, and screw thread M40 * 3 are after slip casting is finished, and are welded on drill rod end before the drilling rod drawing.
With reference to the accompanying drawings, anchoring activities is:
(1), boring: behind the roof-bolter installation in position,, lay augers, and connect first slip casting drilling rod with box cupling by design elevation, position, hole and angle debugging.Drilling rod is docked with the roof-bolter unit head, when position, drill bit hole, after roof-bolter works well, pressurization is crept into, make augers enter the stratum fully after, stop the pressurization, realize feeding automatically by screw action, meet obstructions in creeping into or drilling depth when slow, can suitably pressurize.After first drilling rod bored, block the single deck tape-recorder groove of box cupling, make the unit head counter-rotating, take off, continue to creep into, enter anchoring section fully up to drill bit and slip casting drilling rod at second drilling rod of box cupling place adjunction thereby unload with fork.
(2), slip casting: but between unit head and drilling rod the water tap of adjunction transmission, water tap is linked to each other with filling system, carrying out the limit creeps into, bolt grouting is passed through on the limit, reach projected depth, and satisfy the slip casting requirement, and anchor pole is stayed in the hole, just finished four procedures such as original boring, slotting anchor pole and Grouting Pipe, slip casting, the stifled slurry of installation plug.Grouting with plunger also can stop to creep into after boring reaches the expectation degree of depth, inserts filling system again, the slip casting of pressurizeing.
Grouting pressure is generally at 0.4-1.4MPa, and maximum reaches 2-4MPa, and injecting paste material is the 325-425# Portland cement.Water/binder ratio (0.8-1.2): 1, can mix an amount of early strength admixture as required.Grouting amount determine to depend on strata condition, general effective grouting amount is about the 0.15-0.4 cubic meter.
(3), voltage stabilizing: valve-off voltage stabilizing after the slip casting, treat to finish after the cement initial set.
(4), stretch-draw anchor: treat that cement strength reaches 70% and carries out when above, concrete operations are same as the prior art.
Present technique is on probation through on the spot, and efficiency of construction improves 5-10 doubly than traditional handicraft, remarkable in economical benefits.
Claims (6)
1, a kind of pipe anchor rod construction technology, it is characterized in that: use roof-bolter to drive pipe anchor rod and give pressure boring, after drill bit and slip casting drilling rod enter anchoring section fully, adjunction transmission water tap, and connect with filling system, creep into the marginal not slurry by the pipe anchor rod limit, after waiting to get into projected depth and reaching the slip casting requirement, anchor pole is stayed in the hole, and the anchor of burn-oning then draws bolt that anchor pole is carried out stretch-draw.
2, technology according to claim 1, it is characterized in that: said pipe anchor rod, when its drill bit and slip casting rod boring after projected depth, stop to creep into, insert filling system again, carry out slip casting by anchor pole, after reaching the slip casting requirement, anchor pole is stayed in the hole, and the anchor of burn-oning then draws bolt, carries out stretch-draw.
3, a kind of pipe anchor rod, it comprises that augers, drilling rod, box cupling, anchor draw bolt, is characterized in that: the augers skeleton is pipe, and cylindrical is shaped on spiral vane, the injected hole of regular arrangement on the tube wall; Chisel edge has apex point, and the rear end is welded with awl button nut; Drilling rod is a tubing also, is shaped on regularly arranged injected hole on the tube wall, and the two ends car has taper spiral shell button.
4, anchor pole according to claim 3 is characterized in that: the injected hole on the drill bit is by the 90 ° of arrangements of circumferentially staggering between each pitch.
5, anchor pole according to claim 3 is characterized in that: the injected hole on the said drilling rod, and circumferentially stagger 90 ° every 200mm and to arrange, be used for not having injected hole on the drilling rod of non-anchoring section.
6, anchor pole according to claim 3 is characterized in that: said box cupling, endoporus have taper spiral shell button, and cylindrical has the single deck tape-recorder groove that mills out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94110039 CN1106096A (en) | 1994-01-28 | 1994-01-28 | Pipe anchor rod technology and its anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94110039 CN1106096A (en) | 1994-01-28 | 1994-01-28 | Pipe anchor rod technology and its anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1106096A true CN1106096A (en) | 1995-08-02 |
Family
ID=5034032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94110039 Pending CN1106096A (en) | 1994-01-28 | 1994-01-28 | Pipe anchor rod technology and its anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1106096A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1081265C (en) * | 1997-11-10 | 2002-03-20 | 国土防灾技术株式会社 | Removal-type anchor |
| CN102587366A (en) * | 2012-03-13 | 2012-07-18 | 胜利油田胜利工程建设（集团）有限责任公司 | Self-drilling type spiral anchor rod and construction process using self-drilling type spiral anchor rod for grouting along with drilling, stirring and curing |
| CN103031842A (en) * | 2011-10-08 | 2013-04-10 | 长江大学 | Soil-squeezing type soil anchor |
| CN103352464A (en) * | 2013-08-02 | 2013-10-16 | 山东电力工程咨询院有限公司 | Reinforced type anchor rod for transmission tower foundation and calculation method of reinforced type anchor rod |
| CN103698215A (en) * | 2013-12-31 | 2014-04-02 | 中国地质大学（北京） | Pull-out test device for anchor cable |
| CN106351447A (en) * | 2016-08-31 | 2017-01-25 | 浙江南湖建设有限公司 | Grouting pipe assembly and construction method carried out with the same |
| CN114319342A (en) * | 2022-01-06 | 2022-04-12 | 中冶成都勘察研究总院有限公司 | Novel construction method of anti-floating anchor rod |
-
1994
- 1994-01-28 CN CN 94110039 patent/CN1106096A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1081265C (en) * | 1997-11-10 | 2002-03-20 | 国土防灾技术株式会社 | Removal-type anchor |
| CN103031842A (en) * | 2011-10-08 | 2013-04-10 | 长江大学 | Soil-squeezing type soil anchor |
| CN102587366A (en) * | 2012-03-13 | 2012-07-18 | 胜利油田胜利工程建设（集团）有限责任公司 | Self-drilling type spiral anchor rod and construction process using self-drilling type spiral anchor rod for grouting along with drilling, stirring and curing |
| CN103352464A (en) * | 2013-08-02 | 2013-10-16 | 山东电力工程咨询院有限公司 | Reinforced type anchor rod for transmission tower foundation and calculation method of reinforced type anchor rod |
| CN103352464B (en) * | 2013-08-02 | 2015-04-22 | 山东电力工程咨询院有限公司 | Reinforced type anchor rod for transmission tower foundation and calculation method of reinforced type anchor rod |
| CN103698215A (en) * | 2013-12-31 | 2014-04-02 | 中国地质大学（北京） | Pull-out test device for anchor cable |
| CN103698215B (en) * | 2013-12-31 | 2016-03-02 | 中国地质大学（北京） | Pull-out test device for anchor cable |
| CN106351447A (en) * | 2016-08-31 | 2017-01-25 | 浙江南湖建设有限公司 | Grouting pipe assembly and construction method carried out with the same |
| CN114319342A (en) * | 2022-01-06 | 2022-04-12 | 中冶成都勘察研究总院有限公司 | Novel construction method of anti-floating anchor rod |
| CN114319342B (en) * | 2022-01-06 | 2023-08-11 | 中冶成都勘察研究总院有限公司 | Construction method of anti-floating anchor rod |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |