CN107304565A - A kind of recoverable soil nail bar construction - Google Patents

A kind of recoverable soil nail bar construction Download PDF

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Publication number
CN107304565A
CN107304565A CN201610241035.3A CN201610241035A CN107304565A CN 107304565 A CN107304565 A CN 107304565A CN 201610241035 A CN201610241035 A CN 201610241035A CN 107304565 A CN107304565 A CN 107304565A
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CN
China
Prior art keywords
reinforcing bar
soil nailing
nailing reinforcing
soil
diameter
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.)
Pending
Application number
CN201610241035.3A
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Chinese (zh)
Inventor
徐平
孟芳芳
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Zhengzhou University
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Zhengzhou University
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Filing date
Publication date
Application filed by Zhengzhou University filed Critical Zhengzhou University
Priority to CN201610241035.3A priority Critical patent/CN107304565A/en
Publication of CN107304565A publication Critical patent/CN107304565A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74Means for anchoring structural elements or bulkheads
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74Means for anchoring structural elements or bulkheads
    • E02D5/76Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
    • E02D5/765Anchorings for bulkheads or sections thereof in as much as specially adapted therefor removable
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00Materials
    • E02D2300/0026Metals
    • E02D2300/0029Steel; Iron
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00Miscellaneous
    • E02D2600/20Miscellaneous comprising details of connection between elements

Abstract

The invention discloses a kind of recoverable soil nail bar construction, including soil nailing reinforcing bar, the upper surface connection square steel column of the soil nailing reinforcing bar, the lower end outside surface of the soil nailing reinforcing bar is provided with external screw thread, nut is movably installed with the external screw thread, the soil nailing reinforcing bar is movably arranged on the inside of PVC sleeve pipes, the lower section soil nailing reinforcing bar of the PVC sleeve pipes and is movably installed with disk.The recoverable soil nail bar construction, it is put into by the way that soil nailing reinforcing bar is movably arranged on into cylinder in PVC sleeve pipes, and the upper end of soil nailing reinforcing bar is provided with square steel column, lower end passes through nut fixed disc, so that soil nailing reinforcing bar is installed along with foundation ditch with PVC sleeve pipes, pass through the square steel column of rotate counterclockwise soil nailing reinforcing bar upper end, the lower end of soil nailing reinforcing bar can be screwed out out of nut, used so that soil nailing reinforcing bar completes it after function, conveniently soil nailing reinforcing bar can be recycled, reduce pollution and influence of the soil nailing reinforcing bar on periphery underground environment.

Description

A kind of recoverable soil nail bar construction
Technical field
The present invention relates to vibration isolation wall technology field, specially a kind of recoverable soil nail bar construction.
Background technology
In the reinforcing and support technology of foundation ditch, side slope and underground engineering, Concrete-Nail Bracing Technology Used application is extremely wide General, plate brad supporting is a kind of new earth-retaining technology for building foundation pit and stability of slope, due to the technique Economic, reliable and construction is quick, easy, has been widely used at present, plate brad supporting takes full advantage of The intensity of foundation soil in itself, by setting the method for soil nailing to reach the purpose of supporting when excavating the soil body, soil Follow closely Stress property and be different from anchor pole, anchor pole is typically provided with free segment and anchoring section, pass through the stable soil in distal end Anchoring section in body provides larger withdrawal resistance, and soil nailing for anchor pole with respect to not growing generally and suffered Pulling force is typically small, and Normal practice is that, using total length grouting in hole, centre sets a reinforcing bar, injecting cement paste It is bonded to a cylindric entirety to bear tension load, now, injecting cement paste and the equal tension of reinforcing bar with reinforcing bar, When side slope is excavated downwards, the soil body deforms, and soil nailing is born withdrawal resistance, so that the reinforcing side slope soil body.
Soil nailing has been widely used in the pattern foundation pit supporting structure and side slope consolidation projects of architectural engineering at present, still, Substantial amounts of soil nailing is set into the soil body in work progress, because reinforcing bar and injecting cement paste bonding are integral, its In reinforcing bar can not pull out, by Preserving time in soil turn into permanent barrier, to day rear perimeter edge engineering Foundation construction leaves larger hidden danger.So, how after soil nailing completes it using function, in time by soil nailing The body of rod, which is pulled out, has seemed more and more important, and can also turn into sometimes use the critical problem of soil nailing.
China Patent Publication No. CN202108052U discloses one kind in building foundation pit supporting engineering after use The soil nailing reclaimed can be completed, it is in rock, the soil body after pore-forming, in the cement injection body in hole, to utilize Anchorage node is tight by steel strand wires or reinforcing bar anchor, so as to complete in the function of carrying, anchorage node provided with insurance Device, is provided with after the completion of separation sleeve, branch protective function between steel strand wires or reinforcing bar and injecting cement paste, can open insurance Device, separates steel strand wires or reinforcing bar and anchorage, and steel strand wires or reinforcing bar are pulled out into the soil body, completes to reclaim, Multiple anchorage nodes can be set in one soil nailing, and the anchorage node positioned at diverse location passes through its internal strength Spring can adjust deformation and the stressing conditions of steel strand wires or reinforcing bar, be started from endpoint node to intermediate node Play anchorage effect successively, the technical pattern is more complicated, due to by multiple anchorage nodes mutually limit come Make in-situ test, power transmission is not very clear and definite, it is impossible to apply prestressing force to soil nailing cement slurry, and the body of rod is being returned Time receiving needs to break through the intermediate plate of multiple nodes, and recovery has larger difficulty.
Disclosure of the invention CN101608450A discloses a kind of removable soil nailing, but it merely illustrates soil nail wall Some parts, soil nailing do not have specific recyclable structure, and simply broadly explanation can be pulled out Soil nailing, practical value is little, therefore, we have proposed a kind of recoverable soil nail bar construction.
The content of the invention
It is an object of the invention to provide a kind of recoverable soil nail bar construction, to solve in above-mentioned background technology The problem of proposition.
To achieve the above object, the present invention provides following technical scheme:A kind of recoverable soil nail bar construction, Including soil nailing reinforcing bar, the upper surface of the soil nailing reinforcing bar is connected under square steel column, the soil nailing reinforcing bar End outer surface, which is provided with external screw thread, the external screw thread, is movably installed with nut, the soil nailing reinforcing bar activity Installed in the inside of PVC sleeve pipes, disk is movably installed with the lower section soil nailing reinforcing bar of the PVC sleeve pipes, The installation disk is movably arranged on soil nailing reinforcing bar by mounting hole, the nut activity below the disk On the external screw thread of soil nailing reinforcing bar lower end, the soil nailing reinforcing bar, PVC sleeve pipes pass through PVC outside of sleeve It is marked between the PVC sleeve pipes being arranged on to medium-height trestle on the outside of foundation ditch, the soil nailing reinforcing bar and foundation ditch in center Cement mortar.
It is preferred that, the soil nailing reinforcing bar, PVC sleeve pipes are length identical cylindrical structure, and soil nailing reinforcing bar External diameter it is identical with the internal diameter of PVC sleeve pipes.
It is preferred that, the long 50mm of square steel column.
It is preferred that, the long 100mm of external screw thread, and diameter is identical with soil nailing reinforcing bar.
It is preferred that, the disc thickness 10mm, and the processing external diameter of disk is identical with the size of foundation ditch external diameter, It is 100mm.
It is preferred that, the mounting hole is cylindrical structure, and the diameter phase of the diameter and soil nailing reinforcing bar of mounting hole Together.
It is preferred that, the diameter of the nut is more than the diameter of disk interior installing hole.
A kind of recoverable soil nail bar construction construction method of installation, it comprises the following steps:
The first step, by soil nailing steel bar meter, the interior processing external diameter of Basolateral surface 100mm length and soil nailing Bar diameter identical external screw thread, top processing growth 50mm square steel column.
Second step, externally threaded top is arranged on by internal diameter and soil nailing reinforcing bar identical disk, and disk is thick Spend 10mm, processing external diameter 100mm.
3rd step, the top soil nailing reinforcing bar of disk is inserted in PVC sleeve pipes, warp and soil nailing reinforcing bar in processing Diameter is identical, length and soil nailing reinforcing bar length identical PVC sleeve pipes.
4th step, assembles soil nailing reinforcing bar, disk first is enclosed on into soil nailing reinforcing bar bottom, then screwed in bottom Nut, then by PVC casing pipe sleeves on soil nailing reinforcing bar, then install to medium-height trestle, spacing 2m.
5th step, mounted soil nailing reinforcing bar is put into a diameter of 100mm foundation ditch.
6th step, the soil nailing reinforcing bar assembled, in the middle of PVC sleeve pipes and foundation ditch inject cement mortar or Cement mortar;
7th step, after base pit engineering terminates, rotate counterclockwise soil nailing reinforcing bar can be by soil nailing reinforcing bar from nut It is upper to turn to back-out, dismantle soil nailing reinforcing bar.
Compared with prior art, the beneficial effects of the invention are as follows:The recoverable soil nail bar construction, passes through Soil nailing reinforcing bar is movably arranged on into cylinder to be put into PVC sleeve pipes, and the upper end of soil nailing reinforcing bar is provided with pros Body steel column, lower end passes through nut fixed disc so that soil nailing reinforcing bar is installed along with foundation ditch with PVC sleeve pipes It is interior, can be by the lower end of soil nailing reinforcing bar from spiral shell by the square steel column of rotate counterclockwise soil nailing reinforcing bar upper end Screwed out in female so that soil nailing reinforcing bar completes it using after function, and conveniently soil nailing reinforcing bar can be carried out Recycle, reduce pollution and influence of the soil nailing reinforcing bar on periphery underground environment, and overall structure is simple, It is easy to operate, with good practical value.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention;
Fig. 2 is soil nailing bar construction schematic diagram of the present invention;
Fig. 3 is disc structure schematic diagram of the present invention;
Fig. 4 is soil nailing reinforcing bar of the present invention and PVC sleeve pipe mounting structure schematic diagrams;
In figure:1- soil nailings reinforcing bar, 101- squares steel column, 102- external screw threads, 1021- nuts, 2-PVC Sleeve pipe, 3- are to medium-height trestle, 4- cement mortars, 5- disks, 51- mounting holes, 6 foundation ditches.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the invention, and The embodiment being not all of.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing Go out the every other embodiment obtained under the premise of creative work, belong to the scope of protection of the invention.
Fig. 1-4 are referred to, the present invention provides a kind of technical scheme:A kind of recoverable soil nail bar construction, bag Include soil nailing reinforcing bar 1, the upper surface connection square steel column 101 of soil nailing reinforcing bar 1, the lower end of soil nailing reinforcing bar 1 Outer surface, which is provided with external screw thread 102, external screw thread 102, is movably installed with nut 1021, soil nailing reinforcing bar 1 It is movably arranged on the inside of PVC sleeve pipes 2, the lower section soil nailing reinforcing bar 1 of PVC sleeve pipes 2 and is movably installed with circle Disk 5, installs disk 5 and is movably arranged on by mounting hole 51 on soil nailing reinforcing bar 1, the spiral shell of the lower section of disk 5 Mother 1021 is movably arranged on the external screw thread 102 of the lower end of soil nailing reinforcing bar 1, soil nailing reinforcing bar 1, PVC sleeve pipes 2 Foundation ditch 6, the PVC in the outside of soil nailing reinforcing bar 1 are arranged on to medium-height trestle 3 by the outside of PVC sleeve pipes 2 center Cement mortar 4 is marked between sleeve pipe 2 and foundation ditch 6.
The soil nailing reinforcing bar 1, PVC sleeve pipes 2 are length identical cylindrical structure, and soil nailing reinforcing bar 1 External diameter is identical with the internal diameter of PVC sleeve pipes 2.
The long 50mm of the square steel column 101.
The long 100mm of the external screw thread 102, and diameter is identical with soil nailing reinforcing bar 1.
The thickness 10mm of disk 5, and the processing external diameter of disk 5 is identical with the size of the external diameter of foundation ditch 6, It is 100mm.
The mounting hole 51 is cylindrical structure, and the diameter phase of the diameter and soil nailing reinforcing bar 1 of mounting hole 51 Together.
The diameter of the nut 1021 is more than the diameter of the interior installing hole 51 of disk 5.
A kind of recoverable soil nail bar construction construction method of installation, it comprises the following steps:
The first step, soil nailing reinforcing bar 1 is processed, processing external diameter and soil in the 100mm length of Basolateral surface Follow closely the diameter identical external screw thread 102 of reinforcing bar 1, top processing growth 50mm square steel column 101.
Second step, internal diameter and the identical disk 5 of soil nailing reinforcing bar 1 is arranged on the top of external screw thread 102, And the thickness 10mm of disk 5, processing external diameter 100mm.
3rd step, the top soil nailing reinforcing bar 1 of disk 5 is inserted in PVC sleeve pipes 2, warp and soil in processing Follow closely the diameter of reinforcing bar 1 identical, length and the length identical PVC sleeve pipes 2 of soil nailing reinforcing bar 1.
4th step, assembling soil nailing reinforcing bar 1, is first enclosed on the bottom of soil nailing reinforcing bar 1, then in bottom by disk 5 Nut 1021 is screwed on, then PVC sleeve pipes 2 are enclosed on soil nailing reinforcing bar 1, then is installed to medium-height trestle 3, Away from 2m.
5th step, mounted soil nailing reinforcing bar 1 is put into a diameter of 100mm foundation ditch 6.
6th step, the soil nailing reinforcing bar 1 assembled, the injection cement in the middle of PVC sleeve pipes 2 and foundation ditch 6 Slurry or cement mortar;
7th step, after the engineering of foundation ditch 6 terminates, rotate counterclockwise soil nailing reinforcing bar 1, can by soil nailing reinforcing bar 1 from Turn to back-out on nut 1021, dismounting soil nailing reinforcing bar 1.
Although an embodiment of the present invention has been shown and described, for one of ordinary skill in the art Speech, it is possible to understand that these embodiments can be carried out without departing from the principles and spirit of the present invention A variety of change, modification, replacement and modification, the scope of the present invention is limited by appended claims and its equivalent It is fixed.

Claims (8)

1. a kind of recoverable soil nail bar construction, it is characterised in that:It mainly includes soil nailing reinforcing bar (1), The upper surface connection square steel column (101) of the soil nailing reinforcing bar (1), the soil nailing reinforcing bar (1) Lower end outside surface is provided with external screw thread (102), the external screw thread (102) and is movably installed with nut (1021), The soil nailing reinforcing bar (1) is movably arranged on the inside of PVC sleeve pipes (2), the PVC sleeve pipes (2) Disk (5) is movably installed with lower section soil nailing reinforcing bar (1), the installation disk (5) passes through mounting hole (51) it is movably arranged on soil nailing reinforcing bar (1), the nut (1021) below the disk (5) is living It is dynamic to be arranged on the external screw thread (102) of soil nailing reinforcing bar (1) lower end, the soil nailing reinforcing bar (1), PVC sets Manage (2) and foundation ditch (6) is arranged on to medium-height trestle (3) by center on the outside of PVC sleeve pipes (2), it is described Cement mortar (4) is marked between PVC sleeve pipes (2) and foundation ditch (6) on the outside of soil nailing reinforcing bar (1).
2. a kind of recoverable soil nail bar construction according to claim 1, it is characterised in that:It is described Soil nailing reinforcing bar (1), PVC sleeve pipes (2) are length identical cylindrical structure, and soil nailing reinforcing bar (1) External diameter is identical with the internal diameter of PVC sleeve pipes (2).
3. a kind of recoverable soil nail bar construction according to claim 1, it is characterised in that:It is described Square steel column (101) long 50mm.
4. a kind of recoverable soil nail bar construction according to claim 1, it is characterised in that:It is described External screw thread (102) long 100mm, and diameter is identical with soil nailing reinforcing bar (1).
5. a kind of recoverable soil nail bar construction according to claim 1, it is characterised in that:It is described Disk (5) thickness 10mm, and the processing external diameter of disk (5) is identical with the size of foundation ditch (6) external diameter, It is 100mm.
6. a kind of recoverable soil nail bar construction according to claim 1, it is characterised in that:It is described Mounting hole (51) is cylindrical structure, and the diameter phase of the diameter and soil nailing reinforcing bar (1) of mounting hole (51) Together.
7. a kind of recoverable soil nail bar construction according to claim 1, it is characterised in that:It is described The diameter of nut (1021) is more than the diameter of disk (5) interior installing hole (51).
8. a kind of recoverable soil nail bar construction construction method of installation, it is characterised in that:It includes following step Suddenly:
The first step, soil nailing reinforcing bar (1) is processed, in the 100mm length of Basolateral surface processing external diameter with Soil nailing reinforcing bar (1) diameter identical external screw thread (102), top processing growth 50mm square steel column (101);
Second step, external screw thread (102) is arranged on by internal diameter and soil nailing reinforcing bar (1) identical disk (5) Top, and disk (5) thickness 10mm, processing external diameter 100mm;
3rd step, the top soil nailing reinforcing bar (1) of disk (5) is inserted in PVC sleeve pipes (2), processing Interior warp is identical with soil nailing reinforcing bar (1) diameter, length and soil nailing reinforcing bar (1) length identical PVC sleeve pipes (2);
4th step, assembling soil nailing reinforcing bar (1), is first enclosed on soil nailing reinforcing bar (1) bottom by disk (5), Then nut (1021) is screwed in bottom, then PVC sleeve pipes (2) are enclosed on soil nailing reinforcing bar (1), then Install to medium-height trestle (3), spacing 2m;
In 5th step, the foundation ditch (6) that mounted soil nailing reinforcing bar (1) is put into a diameter of 100mm;
6th step, the soil nailing reinforcing bar (1) assembled, in PVC sleeve pipes (2) and foundation ditch (6) Between injection cement mortar or cement mortar;
7th step, after foundation ditch (6) engineering terminates, rotate counterclockwise soil nailing reinforcing bar (1) can be by soil nailing steel Muscle (1) turns to back-out from nut (1021), dismounting soil nailing reinforcing bar (1).
CN201610241035.3A 2016-04-19 2016-04-19 A kind of recoverable soil nail bar construction Pending CN107304565A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610241035.3A CN107304565A (en) 2016-04-19 2016-04-19 A kind of recoverable soil nail bar construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610241035.3A CN107304565A (en) 2016-04-19 2016-04-19 A kind of recoverable soil nail bar construction

Publications (1)

Publication Number Publication Date
CN107304565A true CN107304565A (en) 2017-10-31

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200308379Y1 (en) * 2002-10-24 2003-03-28 이광재 Dismemberment removal type nail composition
KR200366041Y1 (en) * 2004-07-26 2004-11-03 강영도 A removal nail device in nail construction
KR200368875Y1 (en) * 2004-09-01 2004-12-03 (주) 부성산업엔지니어링 A soil nailing for exclusion
KR200386863Y1 (en) * 2005-03-24 2005-06-16 최용환 A soil nailing for exclusion
WO2005064088A1 (en) * 2003-12-27 2005-07-14 Young-Geun Choi Round rod-type and bundle-type soil nails
CN104532860A (en) * 2015-01-14 2015-04-22 姚炳祥 Recoverable soil nail
CN204919546U (en) * 2015-08-28 2015-12-30 上海勘测设计研究院有限公司 But recovery type soil nail

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200308379Y1 (en) * 2002-10-24 2003-03-28 이광재 Dismemberment removal type nail composition
WO2005064088A1 (en) * 2003-12-27 2005-07-14 Young-Geun Choi Round rod-type and bundle-type soil nails
KR200366041Y1 (en) * 2004-07-26 2004-11-03 강영도 A removal nail device in nail construction
KR200368875Y1 (en) * 2004-09-01 2004-12-03 (주) 부성산업엔지니어링 A soil nailing for exclusion
KR200386863Y1 (en) * 2005-03-24 2005-06-16 최용환 A soil nailing for exclusion
CN104532860A (en) * 2015-01-14 2015-04-22 姚炳祥 Recoverable soil nail
CN204919546U (en) * 2015-08-28 2015-12-30 上海勘测设计研究院有限公司 But recovery type soil nail

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Application publication date: 20171031