CN101358451A - Construction method and apparatus with steel strand built-in - Google Patents
Construction method and apparatus with steel strand built-in Download PDFInfo
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- CN101358451A CN101358451A CNA2007100123641A CN200710012364A CN101358451A CN 101358451 A CN101358451 A CN 101358451A CN A2007100123641 A CNA2007100123641 A CN A2007100123641A CN 200710012364 A CN200710012364 A CN 200710012364A CN 101358451 A CN101358451 A CN 101358451A
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Abstract
The invention relates to a construction technology of pre-stress anchorage cable separation, in particular to a construction method of a built-in steel strand which is applicable to all geological conditions, and a device thereof. The method comprises the following steps: (a) the drill pipe of a drilling machine sends a cable drill bit into design depth; (b) a steel strand buncher is sent into the cable drill bit which is sent into the design depth. The invention is suitable to put in the steel strand under all geological conditions; because of the method, the invention can make sure one or more than one steel strand to be accurately put into the design depth, and effectively solves the problem that the prior art is easy to fall off, thereby producing secondary drilling. In addition, the invention also solves the difficulty that a plurality of steel strands can not be drilled in one by one, so that steel strands are easy to be wound together and damaged. Meanwhile, a plurality of steel strands are bunched on the same axis, so that the length of the free section and the anchoring section of the anchorage cable are precisely controlled. Therefore, the invention effectively improves the tensile resistance of the anchorage cable, reduces the labor intensity of the workers and improves the working efficiency.
Description
Technical field
The present invention relates to the construction technology that a kind of prestress anchorage cable send separation, relate in particular to a kind of job practices and device that is applicable to the steel strand built-in of various geological conditionss.
Background technology
Prestress anchorage cable has been widely applied to deep foundation pit support, the domatic reinforcing of massif, tunnel support etc. in recent years, because its anchorage depth is long, anchoring is reliable and stable, easy construction, accommodation are extensive, are one of best approaches in the present stage anchoring construction.But, along with the scope of application of prestress anchorage cable constantly enlarges and various complex geological conditions, a series of problem has appearred in construction, and the follow-up formula steel strand process of using for traditional secondary grouting technology and present stage all is insurmountable.Particularly can't effectively creep at closely knit boulder bed, pore-forming efficiency hangs down the operating expenses height, the follow-up formula creep into very easily cause steel strand twine, damaged and come off, cause secondary to creep into again, particularly many steel strand can't be constructed, many steel strand can't be concentrated bunchy on same axis, reduce operating efficiency.And free section and anchoring section are uncontrollable, do not have free section substantially.Bring very big difficulty and restriction to work progress for above-mentioned reasons.
Summary of the invention
The present invention puts forward at the problems referred to above, an object of the present invention is to provide the job practices that a kind of prestressed anchor cable drilling send separation, is applicable to that the various design lengths under the various geological conditionss are put the steel skein into.Reach effective control of free section of anchor cable and anchoring section, reduce construction cost.
Another object of the present invention provides the device of the steel strand built-in that a kind of above-mentioned job practices adopts, it is simple in structure, easy to use, reaching many steel strand, to be concentrated into beam quality on same axis higher, and with its send into projected depth accurately, put just, improve efficiency of construction.
The technical scheme of technical solution problem of the present invention for achieving the above object is: the job practices of steel strand built-in comprises the steps: that a) driving rigging drill bit device by the borer drill rod rotation is drilled into projected depth; B) the steel strand beaming device is sent in the adapting position of the rigging drill bit device that reaches projected depth.
Described step a) comprises that also rigging drill bit device pierces after the projected depth drilling rod and throws off in it and regain step.
Adopting the rigging drill bit device of the job practices of above-mentioned steel strand built-in, is custom-designed for realizing the object of the invention, and this device comprises hollow stem, and it is that described hollow stem is fixed at adapting position in the drill bit; Be fixed with snap ring in the described hollow stem.
Described drill bit front portion is provided with a brake pad at least.
Described snap ring one end week upwards is provided with company's piece that matches with drilling rod at least.
Described even piece is any one in boss or the groove.
Adopt the steel strand beaming device of the job practices of above-mentioned steel strand built-in, also be custom-designed for realizing the object of the invention, this device comprises steel strand, it is that boundling dish one end horizontal plane is provided with some described steel strand, also is provided with its horizontal plane on the described boundling dish one end horizontal plane to be skewed guiding reinforcing bar of fixedlying connected.
Described steel strand vertically are fixed on the boundling dish horizontal plane.
The present invention compared with prior art has following advantage and effect:
The present invention is fit to put into steel strand under the various geological conditionss, the present invention since adopted broadcast rigging drill bit device earlier and reach projected depth after, put into the steel strand boundling of sending in advance again, no matter be one or many and can both guarantee that steel strand accurately put into projected depth, effectively avoid prior art the problem that comes off and cause secondary to creep into very easily to occur.Also solved in the prior art many steel strand in addition and can not carry out the follow-up formula and creep into, steel strand easily twine a damaged difficult problem.Simultaneously, reached many steel strand and concentrate bunchy on same axis, made that the length of free section of anchor cable and anchoring section is precisely controlled, the work that has alleviated the workman is emphasized, improves anchor cable stretching resistance and efficiency of construction.The present invention is simple and reasonable for structure, safe and reliable, and cost is low, convenient construction person to a greater extent, and under rugged environment, also can normally finish construction working.
Description of drawings
With reference to accompanying drawing, concrete structure of the present invention is described in detail as follows:
Fig. 1 is a rigging drill bit apparatus structure schematic diagram of the present invention.
Fig. 2 is a steel strand beaming device structural representation of the present invention.
Fig. 3 is the work progress schematic diagram of the job practices of steel strand built-in of the present invention.
Fig. 4 is the construction schematic diagram of the job practices of steel strand built-in of the present invention.
Major part among the figure: drill bit 1, snap ring 2, hollow stem 3 connects piece 4, brake pad 5, steel strand 6, boundling dish 7, guiding reinforcing bar 8.
The specific embodiment
The job practices of steel strand built-in of the present invention shown in Fig. 3,4 comprises the steps: that a) driving rigging drill bit device by the borer drill rod rotation is drilled into projected depth; B) the steel strand beaming device is sent in the adapting position of the rigging drill bit device that reaches projected depth.
Being the rigging drill bit device of finishing the job practices of above-mentioned steel strand built-in as shown in Figure 1, is custom-designed for realizing the object of the invention, and this device comprises hollow stem 3, and it is that described hollow stem 3 is welded in the depth that drill bit 1 is fit to; This drill bit 1 front portion is provided with six brake pads 5 in order to reach better fixation, described hollow stem 3 Inner Front Ends are welded with snap ring 2, upwards being arranged with two even pieces 4 in 2 one end weeks of snap ring, is groove or boss on the borer drill rod, and then associated even piece 4 is boss or groove.
Be the steel strand beaming device of finishing the job practices of above-mentioned steel strand built-in as shown in Figure 2, also be custom-designed for realizing the object of the invention, this device comprises steel strand 6, it is five described steel strand 6 of the vertical welding of boundling dish 7 one end horizontal planes, described boundling dish 7 one end horizontal planes also are provided with its horizontal plane and are skewed, and between the two angle less than the guiding reinforcing bar 8 of 90 ° of welding.
Concrete use process of the present invention is as follows:
Elder generation is with boss on the snap ring 2 in the rigging drill bit device and the groove fit on the borer drill rod shown in Fig. 1,2,3,4; If on the borer drill rod be boss, company's piece 4 on the snap ring 2 that then is mated just is groove, drive whole rigging drill bit rotation and pierce in the rock-soil layer of projected depth by rig rotation, then the boss of the drilling rod of rig and snap ring 2 or groove are thrown off and regain, again the steel strand beaming device is manually sent in rigging drill bit hollow core bar 3, the angle adjustment of sending into the reinforcing bar 8 that will lead earlier before the steel strand beaming device is to guiding reinforcing bar 8 can be touched on hollow stem 3 inwalls all the time, after the boundling dish 7 of steel strand beaming device enters snap ring 2, under the ejection of guiding reinforcing bar 8, make boundling dish 7 one ends be stuck on snap ring 2 sides and be fixed.Promptly reach the purpose of smooth steel strand built-in in the rock-soil layer of projected depth.
Claims (8)
1, a kind of job practices of steel strand built-in comprises the steps:
A) drive rigging drill bit device by the borer drill rod rotation and be drilled into projected depth;
B) the steel strand beaming device is sent in the adapting position of the rigging drill bit device that reaches projected depth.
2, the job practices of steel strand built-in according to claim 1 is characterized in that described step a) comprises that also rigging drill bit device pierces after the projected depth drilling rod and throws off in it and regain step.
3, a kind of rigging drill bit device that adopts the job practices of above-mentioned steel strand built-in comprises hollow stem (3), it is characterized in that described hollow stem (3) is fixed at the interior adapting position of drill bit (1); Be fixed with snap ring (2) in the described hollow stem (3).
4, rigging drill bit device according to claim 3 is characterized in that described drill bit (1) front portion is provided with a brake pad (5) at least.
5, rigging drill bit device according to claim 3 is characterized in that described snap ring (2) one ends week upwards is provided with company's piece (4) that matches with drilling rod at least.
6, rigging drill bit device according to claim 5 is characterized in that described even piece (4) is any one in boss or the groove.
7, a kind of steel strand beaming device that adopts the job practices of above-mentioned steel strand built-in, comprise steel strand (6), it is characterized in that boundling dish (7) one end horizontal planes are provided with some described steel strand (6), also be provided with on described boundling dish (7) the one end horizontal planes with its horizontal plane and be skewed guiding reinforcing bar (8) of fixedlying connected.
8, steel strand beaming device according to claim 6 is characterized in that described steel strand (6) vertically are fixed on boundling dish (7) horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100123641A CN101358451A (en) | 2007-08-02 | 2007-08-02 | Construction method and apparatus with steel strand built-in |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100123641A CN101358451A (en) | 2007-08-02 | 2007-08-02 | Construction method and apparatus with steel strand built-in |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101358451A true CN101358451A (en) | 2009-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100123641A Pending CN101358451A (en) | 2007-08-02 | 2007-08-02 | Construction method and apparatus with steel strand built-in |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101358451A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182197A (en) * | 2011-03-28 | 2011-09-14 | 北京鑫实路桥建设有限公司 | Bundled grouting anchor rope reinforcing method for road rock slope |
| CN103410145A (en) * | 2013-08-16 | 2013-11-27 | 郭红标 | Disposable anchor cable bit and construction method thereof |
| CN113585071A (en) * | 2021-07-27 | 2021-11-02 | 内蒙古东蒙工贸有限责任公司 | Anchor cable with anti-seismic pressure dispersion mechanism |
-
2007
- 2007-08-02 CN CNA2007100123641A patent/CN101358451A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182197A (en) * | 2011-03-28 | 2011-09-14 | 北京鑫实路桥建设有限公司 | Bundled grouting anchor rope reinforcing method for road rock slope |
| CN102182197B (en) * | 2011-03-28 | 2014-10-29 | 北京鑫实路桥建设有限公司 | Bundled grouting anchor rope reinforcing method for road rock slope |
| CN103410145A (en) * | 2013-08-16 | 2013-11-27 | 郭红标 | Disposable anchor cable bit and construction method thereof |
| CN103410145B (en) * | 2013-08-16 | 2016-01-20 | 郭红标 | Disposable anchor cable bit and construction method thereof |
| CN113585071A (en) * | 2021-07-27 | 2021-11-02 | 内蒙古东蒙工贸有限责任公司 | Anchor cable with anti-seismic pressure dispersion mechanism |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090204 |