CN104727322B - One is utilized steel-pipe pile fixing anchor bar and callable device and construction method - Google Patents
One is utilized steel-pipe pile fixing anchor bar and callable device and construction method Download PDFInfo
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- CN104727322B CN104727322B CN201510124158.4A CN201510124158A CN104727322B CN 104727322 B CN104727322 B CN 104727322B CN 201510124158 A CN201510124158 A CN 201510124158A CN 104727322 B CN104727322 B CN 104727322B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/28—Prefabricated piles made of steel or other metals
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses one and utilize steel-pipe pile fixing anchor bar and callable device and construction method, comprise the rectangle hollow steel-pipe pile that a head is tip, on the sidewall of steel-pipe pile one side, be provided with circular hole opening draw-in groove, the top of opening draw-in groove is provided with the top snap close of a locking anchor pole, opening draw-in groove below hangs an ox horn snap close, and in the both sides of steel-pipe pile every two the angle steel ears that are welded with of a segment distance symmetry. Utilize the device of steel-pipe pile fixing anchor bar also to comprise i shaped steel, in use, one side pressure enters the inner side of angle steel ear to i shaped steel. By adopting steel-pipe pile locking anchor pole, replace anchor pole to adopt the method for slip casting anchoring rod, steel-pipe pile is to be pressed in excavation of foundation pit, merge the duration, save total duration, and saved the slurry firm time while adopting slip casting, reduced rock-bolt length.
Description
Technical field
The present invention relates to a kind of device and construction method of utilizing the fixing anchor cable of steel-pipe pile, be particularly useful for soil layer Extra-Deep Foundation Pit knotThe fixing prestressed anchor of non-slip casting in structure.
Background technology
Follow country and greatly develop the rhythm of the underground space, urban architecture deep-foundation pit engineering is more and more, and anchor pole is not because taking foundation ditchInterior construction space, becomes existing more effective pattern foundation pit supporting structure mode. But the fixing employing cement grout knot of anchor rod anchored sectionClosing secondary grouting, there are two problems in this quasi-tradition anchoring process: the one, if anchoring section is arranged in weak loose soil layer,Needs anchoring section long especially, cause steel wastes, and construction waits for that slurries firm time is longer, cause after excavation of foundation pit be not andTime stretching force is provided. The 2nd, slip casting anchoring body and anchor pole, as gib system, all cannot be regained, to week in the time of pit backfillIt is many that the pollution range of the limit soil body exceedes foundation ditch twice, seriously exceeded beyond Systems of Red Line in Planning Based, affected the underground sky of foundation ditch adjacent peripheryBetween exploitation.
Therefore the anchoring system of recyclable recycling is developed to research, China has developed some recoverables at presentAnchor pole technology;
Announce a kind of full recovery prestressed anchor and preparation method thereof at Chinese patent CN103821143A, utilized thermoplastic cold solidMaterial is built anchoring section, extracts steel strand wires out after steel strand wires are reached to anchoring material plasticity with electric-heating-wire-heating, and this method on the one handDue to adopt to build material uncommon, and the bearing capacity providing is limited, on the other hand because to anchor pole, energising causes construction dangerousCoefficient increases;
Announce and a kind ofly can entirely reclaim enlarging anchor rod and ground be carried out to anchoring with this anchor pole at Chinese patent CN102733385BConstruction method, adopt the assemblies such as the coated capsule of sealing to realize anchor recovering function, but structure is more complicated, difficult quality guarantee;
The installation and recovery side of callable nylon separate assembling anchor pole and anchor pole have been announced at Chinese patent CN103643976AMethod, adopts nylon combination anchor pole, but still needs slip casting, and anchoring section still cannot reclaim, and causes soil pollution.
By this, be optimized by the anchorage style to traditional anchor pole, a kind of simple and reliable, non-mud of design fixes, can be wholeThe anchor rod anchored mode of recycling is necessary.
Summary of the invention
The present invention is exactly for the problems referred to above, proposes a kind of non-mud fixing anchor bar and callable equipment and construction method.
For achieving the above object, the present invention adopts following technical scheme:
One is utilized steel-pipe pile fixing anchor bar and callable device, comprises the rectangle hollow steel pipe that a head is tip or round endStake is provided with circular hole opening draw-in groove on the sidewall of steel-pipe pile one side, and the top of opening draw-in groove is provided with the top lock of a locking anchor poleButton, opening draw-in groove below hangs an ox horn snap close, and in the both sides of steel-pipe pile every two angles that are welded with of a segment distance symmetrySteel ear.
The described device that utilizes steel-pipe pile fixing anchor bar also comprises i shaped steel, described i shaped steel in use, its one endBe pressed into the inner side of angle steel ear.
Be positioned at that the snap close of opening draw-in groove top forms by the thickening of opening draw-in groove top.
Described opening draw-in groove interpolation enters to have to expand an anchor pole.
A described expansion anchor pole, its one end overstriking, and add the end of butt end enters steel-pipe pile draw-in groove taper for ease of anchor pole.
Described opening draw-in groove is the cavernous structure that a lower end diameter is greater than upper end diameter.
The method of utilizing described device to construct is as follows:
Step 1: in excavation of foundation pit, be pressed into rectangle steel pile tube at design attitude;
Step 2: insert in steel-pipe pile by the big opening end of opening draw-in groove expanding an anchor pole, fixing anchor bar expands head end in steel-pipe pile,Then stretching anchor rod, locking;
Step 3: along with foundation ditch continues excavation downwards, utilize the method for step 2, continue an expansion anchor pole of locking below, until baseHas excavated in hole;
Step 4: with the construction of underground agent structure, successively unclamp an expansion anchor pole of locking in foundation ditch, ox horn latches in gravity and doesWith under move down, expand the butt end that adds of an anchor pole and pull out by opening draw-in groove, anchor pole is pulled out to recycling, simultaneously by steel pipeRecycling is extracted in stake.
The detailed process of described step 1 is as follows:
A) extraterrestrial pre-manufactured steel pile tube on the scene;
B) calculate the position of foundation ditch potential slide surface according to designing requirement, determine the position of steel-pipe pile outside foundation ditch;
C) in excavation of foundation pit, being pressed into steel-pipe pile, is to increase steel-pipe pile opposing axis force of anchor, in the both sides of steel-pipe pile every oneTwo angle steel ears of rice welding, are pressed into i shaped steel in angle steel ear inner side.
The detailed process of described step 2 is as follows:
A) set an expansion anchor pole by design attitude and draw hole, aim at the opening draw-in groove on steel-pipe pile;
B) will expand an anchor pole inserts in steel-pipe pile by opening draw-in groove diameter larger part;
C) utilize rope to hold the crotch on ox horn snap close both sides, draw-in groove below, drive an expansion anchor pole to move up;
D) diameter that an expansion anchor pole is brought into opening draw-in groove is compared with small end, and what ensure an expansion anchor pole adds butt end at ox horn snap close and steel pipeThe inner side of the top snap close of locking anchor pole in stake;
E) other end that an anchor pole is expanded in stretch-draw in foundation ditch is to design stretch-draw value, and an anchor pole is expanded in locking, then unclamps on ox horn snap closeRope.
Beneficial effect of the present invention:
By adopting steel-pipe pile locking anchor pole, replace anchor pole to adopt the method for slip casting anchoring rod, steel-pipe pile is at excavation of foundation pitIn time, is pressed into, and has merged the duration, has saved total duration, and has saved the slurry firm time while adopting slip casting, simultaneously largeShorten greatly rock-bolt length.
Adopt anchor pole locking means of the present invention, all recyclable recyclings of steel-pipe pile that anchor pole and locking anchor pole are used, have avoided employingThe surrounding soil causing when suspension roof support foundation ditch pollutes, and has saved construction material, facilitates the underground space development of foundation ditch periphery,Be conducive to promote the greenization development of underground engineering.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or prior artIn description, the accompanying drawing of required use is briefly described, and apparently, the accompanying drawing in the following describes is realities more of the present inventionExecute example, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also be according to these accompanying drawingsObtain other accompanying drawing.
The leading flank of Fig. 1 steel-pipe pile;
The left surface of Fig. 2 steel-pipe pile;
The sectional view of Fig. 3 steel-pipe pile;
Fig. 4 is the sectional view that i shaped steel is inserted in steel-pipe pile both sides;
Fig. 5 is for expanding an anchor pole profile;
Fig. 6 is that draw-in groove and ox horn latch in the layout drawing in steel-pipe pile;
Fig. 7 is the schematic diagram that steel-pipe pile inner lock buckle pins anchor pole;
In figure, 1 steel-pipe pile; 2 angle steel ears; 3 opening draw-in grooves; 4 i shaped steels; 5 expand an anchor pole; 6 add butt end; 7 ox hornsSnap close; On 8 steel-pipe piles, lock the top snap close of anchor pole.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
Just as described in the background section, there are two problems in traditional anchoring process: the one, and weak loose if anchoring section is positioned atIn soil layer, need anchoring section long especially, cause steel waste, and construction wait slurries firm time is longer, causes foundation ditch to be openedAfter digging, not that stretching force is provided in time. The 2nd, slip casting anchoring body and anchor pole, as gib system, all cannot in the time of pit backfillRegain, the pollution range of the periphery soil body is exceeded to foundation ditch twice many, seriously exceeded beyond Systems of Red Line in Planning Based, affected foundation ditch and closed onThe exploitation of the periphery underground space;
Based on the problems referred to above, the present invention proposes one and utilize steel-pipe pile fixing anchor bar and callable device, comprise that a head isThe rectangle hollow steel-pipe pile of tip is provided with circular hole opening draw-in groove on the sidewall of steel-pipe pile one side, and the top of opening draw-in groove is provided with oneThe top snap close of individual locking anchor pole, opening draw-in groove below hangs an ox horn snap close, and in the both sides of steel-pipe pile every a segment distanceSymmetrical be welded with two angle steel ears.
The present invention, by adopting steel-pipe pile locking anchor pole, has replaced anchor pole to adopt the method for slip casting anchoring rod, and steel-pipe pile is at baseHole is pressed into when excavation, has merged the duration, has saved total duration, and has saved the slurry firm time while adopting slip casting,Greatly shorten rock-bolt length simultaneously.
Set forth detail in the following description so that fully understand the present invention. But the present invention can be different from multipleThe alternate manner of this description is implemented, and those skilled in the art can do similar popularization without prejudice to intension of the present invention in the situation that.Therefore the present invention is not subject to the restriction of following public detailed description of the invention.
Embodiments of the invention provide a kind of device that utilizes steel-pipe pile fixing anchor bar as shown in Fig. 1-7, comprise that a head is for pointThe rectangle hollow steel-pipe pile 1 of head is provided with circular hole opening draw-in groove 3 on the sidewall of steel-pipe pile 1 one sides, and the top of opening draw-in groove 3 is provided withThe top snap close 8 of a locking anchor pole, opening draw-in groove 3 belows hang an ox horn snap close 7, and in the both sides of steel-pipe pile every one sectionThe distance symmetry of setting be welded with two angle steel ears 2, the snap close that is positioned at opening draw-in groove top is formed by the thickening of opening draw-in groove top.
On the basis of above-described embodiment, what one embodiment of the invention provided utilizes the device of steel-pipe pile fixing anchor bar also to compriseI shaped steel 4, in use, one side pressure enters the inner side of angle steel ear to described i shaped steel 4.
In the above-described embodiments, in opening draw-in groove 3, be inserted with and expand an anchor pole 5, expand an anchor pole 5, its one end overstriking, and add butt end6 end enters the taper of steel-pipe pile draw-in groove for ease of anchor pole.
In the above-described embodiments, opening draw-in groove 3 is the cavernous structure that a lower end diameter is greater than upper end diameter.
Detailed description of the invention is as follows:
Step 1: in excavation of foundation pit, be pressed into rectangle steel pile tube 1 apart from a distance, foundation ditch limit;
A) extraterrestrial pre-manufactured steel pile tube 1 on the scene;
B), according to the position of the potential slide surface of designing and calculating foundation ditch, determine the position of steel-pipe pile outside foundation ditch;
C) in excavation of foundation pit, being pressed into steel-pipe pile, is to increase steel-pipe pile opposing axis force of anchor, in the both sides of steel-pipe pile every oneTwo angle steel ears 2 of rice welding, are pressed into i shaped steel 4 in angle steel ear inner side;
Step 2: insert and expand an anchor pole, fixing anchor bar expands head end in steel-pipe pile, then stretching anchor rod, locking;
A) set anchor pole by design attitude and draw hole, aim at the opening draw-in groove 3 on steel-pipe pile;
B) will expand an anchor pole 5 inserts in steel-pipe pile by opening draw-in groove 3 larger parts;
C) utilize rope to hold the crotch on ox horn snap close 7 both sides, draw-in groove below, drive an expansion anchor pole 5 to move up;
D) be brought into the thin portion in top of draw-in groove by expanding an anchor pole, what ensure to expand an anchor pole adds butt end 6 at ox horn snap close 7 and steel-pipe pileThe inner side of the top snap close 8 of upper locking anchor pole;
E) other end that an anchor pole is expanded in stretch-draw in foundation ditch is to design stretch-draw value, and locking anchor pole, then unclamps the rope on ox horn snap closeRope;
Step 3: continue an expansion anchor pole of step 2 locking below, until excavation of foundation pit completes.
Step 4: successively unclamp an expansion anchor pole of locking in foundation ditch with the construction of underground agent structure, ox horn snap close 7 is done at gravityWith under move down, expand adding butt end 6 and can pulling out by opening draw-in groove 3 of an anchor pole, anchor pole can be pulled out to recycling, withTime steel-pipe pile is extracted to recycling.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned, not the limit to protection domain of the present inventionSystem, one of ordinary skill in the art should be understood that on the basis of technical scheme of the present invention, those skilled in the art do not need to payGo out various amendments that creative work can make or distortion still in protection scope of the present invention.
Claims (9)
1. utilize steel-pipe pile fixing anchor bar and a callable device, it is characterized in that: comprise that a head is tip or round endRectangle hollow steel-pipe pile, on the sidewall of steel-pipe pile one side, be provided with circular hole opening draw-in groove, the top of opening draw-in groove is provided with a lockDetermine the top snap close of anchor pole, opening draw-in groove below hangs an ox horn snap close, and in the both sides of steel-pipe pile every one section of setpoint distance,Symmetrical be welded with two angle steel ears.
2. steel-pipe pile fixing anchor bar and the callable device of utilizing as claimed in claim 1, is characterized in that: the described steel that utilizesThe device of pile tube fixing anchor bar also comprises i shaped steel, described i shaped steel in use, one side pressure enter angle steel ear inSide.
3. steel-pipe pile fixing anchor bar and the callable device of utilizing as claimed in claim 1, is characterized in that: be positioned at open cardThe snap close of groove top is formed by the thickening of opening draw-in groove top.
4. steel-pipe pile fixing anchor bar and the callable device of utilizing as claimed in claim 1, is characterized in that: described openingIn draw-in groove, be inserted with and expand an anchor pole.
5. steel-pipe pile fixing anchor bar and the callable device of utilizing as claimed in claim 4, is characterized in that: described expansion headAnchor pole, its one end overstriking, and add the end of butt end enters steel-pipe pile draw-in groove taper for ease of anchor pole.
6. steel-pipe pile fixing anchor bar and the callable device of utilizing as claimed in claim 1, is characterized in that: described openingDraw-in groove is the cavernous structure that a lower end diameter is greater than upper end diameter.
7. the method for utilizing device as claimed in claim 1 to construct, is characterized in that, as follows:
Step 1: in excavation of foundation pit, be pressed into rectangle steel pile tube at design attitude;
Step 2: insert in steel-pipe pile by the big opening end of opening draw-in groove expanding an anchor pole, fixing anchor bar expands head end in steel-pipe pile,Then stretching anchor rod, locking;
Step 3: along with foundation ditch continues excavation downwards, utilize the method for step 2, continue an expansion anchor pole of locking below, until baseHas excavated in hole;
Step 4: with the construction of underground agent structure, unclamp an expansion anchor pole of locking in foundation ditch, ox horn latches under Action of Gravity FieldMove down, or shift the butt end that adds that expands an anchor pole onto opening draw-in groove place downwards by stock, then pull-out.
8. method as claimed in claim 7, is characterized in that, the detailed process of described step 1 is as follows:
A) extraterrestrial pre-manufactured steel pile tube on the scene;
B) calculate the position of foundation ditch potential slide surface according to designing requirement, determine the position of steel-pipe pile outside foundation ditch;
C) in excavation of foundation pit, be pressed into steel-pipe pile, in the both sides of steel-pipe pile every two angle steel ears of one meter of welding, at angle steelEar inner side is pressed into i shaped steel.
9. method as claimed in claim 7, is characterized in that, the detailed process of described step 2 is as follows:
A) set an expansion anchor pole by design attitude and draw hole, aim at the opening draw-in groove on steel-pipe pile;
B) will expand an anchor pole inserts in steel-pipe pile by opening draw-in groove diameter larger part;
C) utilize rope to hold the crotch on ox horn snap close both sides, draw-in groove below, drive an expansion anchor pole to move up;
D) diameter that an expansion anchor pole is brought into opening draw-in groove is compared with small end, and what ensure an expansion anchor pole adds butt end at ox horn snap close and steel pipeThe inner side of the top snap close of locking anchor pole in stake;
E) other end that an anchor pole is expanded in stretch-draw in foundation ditch is to design stretch-draw value, and an anchor pole is expanded in locking, then unclamps on ox horn snap closeRope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510124158.4A CN104727322B (en) | 2015-03-20 | 2015-03-20 | One is utilized steel-pipe pile fixing anchor bar and callable device and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510124158.4A CN104727322B (en) | 2015-03-20 | 2015-03-20 | One is utilized steel-pipe pile fixing anchor bar and callable device and construction method |
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| CN104727322A CN104727322A (en) | 2015-06-24 |
| CN104727322B true CN104727322B (en) | 2016-05-04 |
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| CN105113522A (en) * | 2015-09-22 | 2015-12-02 | 河南万泰建安开发有限公司 | Space composite supporting structure |
| CN109490015A (en) * | 2018-11-02 | 2019-03-19 | 河海大学 | It is a kind of for preventing the bed-sit sampler of turbulent water in high-velocity flow environment |
| CN114382075A (en) * | 2020-10-20 | 2022-04-22 | 宝山钢铁股份有限公司 | Rhombic concrete-filled steel tube tubular pile and preparation die and preparation and installation method thereof |
| CN114892673A (en) * | 2022-05-25 | 2022-08-12 | 山东曼凯机械化工程有限公司 | Foundation pit supporting construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100792130B1 (en) * | 2007-03-16 | 2008-01-04 | 이창남 | Construction method of pressure penetrating pipe pile |
| CN101851925A (en) * | 2010-06-03 | 2010-10-06 | 中冶集团武汉勘察研究院有限公司 | Deep mixing pile-micro pre-stressed steel pipe concrete pile-vertical anchor rod composite foundation pit support method |
| CN102605780B (en) * | 2012-04-17 | 2015-01-28 | 周治国 | Recyclable anchor rod for foundation pit support and construction method thereof |
| KR101490555B1 (en) * | 2012-07-23 | 2015-02-06 | 유호산업개발(주) | Steel pipe pile cap for supporting temporary bent |
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