CN101545257A - Novel anchor rod construction process and spare and accessory parts thereof - Google Patents
Novel anchor rod construction process and spare and accessory parts thereof Download PDFInfo
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- CN101545257A CN101545257A CN200810064163A CN200810064163A CN101545257A CN 101545257 A CN101545257 A CN 101545257A CN 200810064163 A CN200810064163 A CN 200810064163A CN 200810064163 A CN200810064163 A CN 200810064163A CN 101545257 A CN101545257 A CN 101545257A
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- drill bit
- anchor
- anchor rod
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Abstract
The invention relates to a novel anchor rod construction process, which comprises the following steps: a, drilling a hole by using an anchor rod machine, supplying water through individual high pressure of a drill rod during drilling, and making water flow reach high pressure at a drilling place to form cutting action; b, guiding the hole by adopting a serrated alloy drill bit; and then c, after the drill rod is taken out, covering an anchorage end of a prestressed twisted wire at the front end of a roof pressure drill bit, and directly conveying a stranded wire with an anchor plate to the design depth of the drill rod through a drilling machine, wherein the drill bit is serrated so that cut soil layers have strip shape and are easier to be discharged, the drill bit drills to the design depth, the anchorage end of the prestressed twisted wire is reserved at the bottom of the drilled hole, then slurry injection is carried out through the drill rod, and a prestressed anchor rod is formed after the injected slurry reaches the design requirement. The method for construction cancels a disposable drill bit in the conventional anchor rod construction process, effectively lowers engineering cost, can ensure construction quality more reliably, improves the efficiency, and is applicable to various rock soil layers. The construction process can be widely applied to soil blockage and support for underground continuous walls and foundation pits, resists pull and extraction in the soil layers, and forms the anchor rod.
Description
Technical field
The present invention relates to field of civil engineering, particularly relate to retaining soil, diaphragm wall, pattern foundation pit supporting structure is used, tension, resistance to plucking in soil layer and the construction technology of anchor pole of forming.
Background technology
The prior art the most approaching with the present invention is that a key name is called " construction technology of soil anchor and anchor rod member " number of patent application 200610010248.1, a kind of construction technology of soil anchor is disclosed, comprise the steps: A, utilize roof-bolter boring, by drilling rod self high-pressure feed water, current reach high pressure soil layer are formed cutting at the place of creeping in the boring procedure; B, drill bit are serration type, and the cutting-out soil layer is bar shaped, easily discharge, and drill bit adopts plain bearing or pressure bearing to be connected with prestressing force twisted wire anchored end, and subsidiary Grouting Pipe, creeps into projected depth with drill bit; After C, drilling rod took out, prestressing force twisted wire anchored end was stayed foot of hole with Grouting Pipe and drill bit, carried out slip casting by Grouting Pipe then and also can be cement paste or cement mortar, after slip casting reaches designing requirement, formed prestressed anchor.This job practices and accessory guarantee construction quality more reliably, raise the efficiency, thereby reduce cost; The deficiency that exists is to adopt disposable drill bit band steel strand to form prestressed anchor in work progress, waste is serious, time-consuming taking a lot of work, dowel and drilling rod winding often take place, anchor pole can't creep into and should reach the degree of depth after taking place, it is serious and can't remedy to produce consequence, causes in the design process safety factor excessive.Addressing this problem becomes urgent need.
The content of invention:
The object of the present invention is to provide a kind of job practices of soil anchor, the disposable drill bit in the cancellation anchor pole drilling process utilizes sawtooth pattern alloy bit and roof pressure alloy bit to cooperatively interact and can be widely used in various soil layers.The job practices of this soil anchor can guarantee construction quality more reliably, raises the efficiency, and reduces engineering cost.The job practices of above-mentioned purpose of the present invention by following soil anchor, the anchor rod construction method of this soil body comprises the steps: a, utilizes roof-bolter boring, by drilling rod self high-pressure feed water, make current reach high pressure at the place of creeping into soil layer is formed shear action in the boring procedure; B, earlier adopt the serration type alloy bit to draw the hole, drill bit is that serration type makes that to downcut soil layer be bar shaped, easier discharge, drill bit drilling to completion; After c, next drilling rod took out, prestressing force twisted wire anchored end was placed in the roof pressure chisel edge, directly will deliver to the anchor pole projected depth with the steel strand of anchor plate by rig.Prestressing force twisted wire anchored end is stayed foot of hole, carries out slip casting (can be cement paste or cement mortar) by drilling rod then, after slip casting reaches designing requirement, forms prestressed anchor.
In above-mentioned soil anchor job practices, in the step a boring procedure,, make current reach high pressure at the place of creeping into speed and efficient are advanced in soil layer formation shear action raising commentaries on classics by drilling rod self high-pressure feed water.Step b drill bit is that sawtooth makes that to downcut soil layer be bar shaped, and more easy-to-discharge slag improves rate of penetration.Step c drill bit can carry out slip casting in proposition drilling rod limit, limit with drilling rod, makes grouting amount obtain metering and affirmation.Realize that the anchor pole spare and accessory parts that technology of the present invention adopts comprise drill bit, bit drills leaf place is welded with wear-resisting alloy block, bores leaf front end place and is provided with water filling port, and drill bit is a sawtooth pattern, and the roof pressure drill bit is a circular ring type, and front end also is welded with alloy block.Prestressing force twisted wire anchored end adopts circular steel plate, and steel plate is provided with the reservation circular hole of band steel strand.Adopt method construction of the present invention, when drilling rod took out, prestressing force twisted wire anchored end was stayed foot of hole, carries out slip casting (can be cement paste or cement mortar) by drilling rod then, after grouting amount reaches designing requirement, formed prestressed anchor.This job practices and accessory have been cancelled the disposable drill bit in traditional anchor rod construction process, have effectively reduced engineering cost, can more reliable assurance construction quality, raise the efficiency, and be applicable to various rock soil layers.Adopt spare and accessory parts of the present invention can better guarantee construction quality, make technology more guaranteed.
Description of drawings:
Fig. 1 is a serration type alloy bit view;
Fig. 2 once draws hole work view for rig;
Fig. 3 is a roof pressure alloy bit view;
Fig. 4 is for taking aim at solid plate view;
Fig. 5 is the vertical view of Fig. 3;
Fig. 6 is that two roof pressures form the prestressed anchor view.
The specific embodiment:
As figure, the anchor rod construction method of the soil body comprises the steps: a, utilizes roof-bolter boring, by drilling rod self high-pressure feed water, makes current reach high pressure at the place of creeping into soil layer is formed shear action in the boring procedure; B, earlier adopt the serration type alloy bit to draw the hole, drill bit is that serration type makes that to downcut soil layer be bar shaped, easier discharge, drill bit drilling to completion; After c, next drilling rod took out, prestressing force twisted wire anchored end was placed in the roof pressure chisel edge, directly will deliver to the anchor pole projected depth with the steel strand of anchor plate by rig.Prestressing force twisted wire anchored end is stayed foot of hole, carries out slip casting (can be cement paste or cement mortar) by drilling rod then, after slip casting reaches designing requirement, forms prestressed anchor.
In above-mentioned soil anchor job practices, in the step a boring procedure,, make current reach high pressure at the place of creeping into speed and efficient are advanced in soil layer formation shear action raising commentaries on classics by drilling rod self high-pressure feed water.Step b drill bit is that sawtooth makes that to downcut soil layer be bar shaped, and more easy-to-discharge slag improves rate of penetration.Step c drill bit can carry out slip casting in proposition drilling rod limit, limit with drilling rod, makes grouting amount obtain metering and affirmation.
Realize that the anchor pole spare and accessory parts that technology of the present invention adopts comprise drill bit 1, bit drills leaf place is welded with wear-resisting alloy block 2, bores leaf front end place and is provided with water filling port 3, and drill bit is a sawtooth pattern, and the roof pressure drill bit is a circular ring type, and front end also is welded with alloy block.Prestressing force twisted wire anchored end adopts circular steel plate, and steel plate is provided with the reservation circular hole of band steel strand.
Claims (2)
1, a kind of novel anchor rod construction process is characterized in that: comprise the steps: a, utilize roof-bolter boring, by drilling rod self high-pressure feed water, make current reach high pressure at the place of creeping into soil layer is formed shear action in the boring procedure; B, earlier adopt the serration type alloy bit to draw the hole, drill bit is that serration type makes that to downcut soil layer be bar shaped, easier discharge, drill bit drilling to completion; After c, next drilling rod took out, prestressing force twisted wire anchored end was placed in the roof pressure chisel edge, directly will deliver to the anchor pole projected depth with the steel strand of anchor plate by rig.Prestressing force twisted wire anchored end is stayed foot of hole, carries out slip casting by drilling rod then, after slip casting reaches designing requirement, forms prestressed anchor.
2, realize the used spare and accessory parts of the described novel anchor rod construction process of claim 1, it is characterized in that: it comprises drill bit, bit drills leaf place is welded with wear-resisting alloy block, bore leaf front end place and be provided with water filling port, drill bit is a sawtooth pattern, the roof pressure drill bit is that circular ring type, front end are welded with alloy block, and prestressing force twisted wire anchored end adopts circular steel plate, and steel plate is provided with the reservation circular hole of band steel strand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810064163A CN101545257A (en) | 2008-03-24 | 2008-03-24 | Novel anchor rod construction process and spare and accessory parts thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810064163A CN101545257A (en) | 2008-03-24 | 2008-03-24 | Novel anchor rod construction process and spare and accessory parts thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101545257A true CN101545257A (en) | 2009-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810064163A Pending CN101545257A (en) | 2008-03-24 | 2008-03-24 | Novel anchor rod construction process and spare and accessory parts thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101545257A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195059A (en) * | 2013-03-27 | 2013-07-10 | 钟利刚 | Self-positioning type spring guiding plate ribbed cement soil anchor drill bit and construction method thereof |
| CN105275413A (en) * | 2015-11-09 | 2016-01-27 | 华侨大学 | Self-dredging type drilling device |
| CN113669090A (en) * | 2021-08-23 | 2021-11-19 | 中建八局发展建设有限公司 | Anchor rod construction process |
-
2008
- 2008-03-24 CN CN200810064163A patent/CN101545257A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195059A (en) * | 2013-03-27 | 2013-07-10 | 钟利刚 | Self-positioning type spring guiding plate ribbed cement soil anchor drill bit and construction method thereof |
| CN103195059B (en) * | 2013-03-27 | 2015-08-26 | 钟利刚 | A kind of construction method using self-localization-type spring water conservancy diversion strip muscle cement soil anchor drill bit |
| CN105275413A (en) * | 2015-11-09 | 2016-01-27 | 华侨大学 | Self-dredging type drilling device |
| CN113669090A (en) * | 2021-08-23 | 2021-11-19 | 中建八局发展建设有限公司 | Anchor rod construction process |
| CN113669090B (en) * | 2021-08-23 | 2023-05-02 | 中建八局发展建设有限公司 | Anchor rod construction process |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090930 |