CN204475326U - The construction equipment of anti-slub type anti-float anchor rod - Google Patents
The construction equipment of anti-slub type anti-float anchor rod Download PDFInfo
- Publication number
- CN204475326U CN204475326U CN201520119891.2U CN201520119891U CN204475326U CN 204475326 U CN204475326 U CN 204475326U CN 201520119891 U CN201520119891 U CN 201520119891U CN 204475326 U CN204475326 U CN 204475326U
- Authority
- CN
- China
- Prior art keywords
- slurry
- grouting pipe
- anchor pole
- pouch
- muscle
- 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.)
- Withdrawn - After Issue
Links
Abstract
The utility model discloses a kind of construction equipment of anti-slub type anti-float anchor rod, it comprises the first Grouting Pipe (1), second Grouting Pipe (2), anchor pole muscle (3) and slurry pouch (4), first Grouting Pipe (1), second Grouting Pipe (2) and anchor pole muscle (3) all insert slurry pouch (4), slurry pouch (4) two ends are banded on anchor pole muscle (3) by rope respectively, slurry pouch (4) is provided with many and will starches pouch (4) and be banded in waistband (5) on anchor pole muscle (3), logical slurry short tube (6) is provided with in every bar waistband (5).This device can be avoided slurries to be diffused into causing waste outside hole in the soil body and can increase substantially anti-floating bearing capacity.
Description
Technical field
The utility model relates to the construction technology of the anti-float anchor rod in field of civil engineering, is specifically a kind of construction equipment of anti-slub type anti-float anchor rod.
Background technology
Continually develop utilization along with urban underground space, the scale of the underground structure such as underground garage, subterranean commercial area is increasing.At the underground structure in groundwater table district higher, when the anti-floating Lack of support that the comprehensive function of the factors such as its deadweight, top earthing and pile foundation produces, or when original underground structure produces because of heavy rain and floats destruction, the method for construction anti-float anchor rod generally can be adopted to improve anti-floating bearing capacity.
The method of traditional construction anti-float anchor rod is, mechanical hole building is adopted in soil layer, anchor pole muscle and Grouting Pipe is inserted again in formed bolthole, pressure injects cement mortar i.e. slip casing by pressure first, and then pressure injects cement paste, reach some strength post-stress at injecting cement paste and lock, thus forming anti-float anchor rod.
There is following defect in traditional anti-float anchor rod: one is that the slurries injected can penetrate into the soil body along the hole of the soil body, is difficult to effectively control indiffusion in bolthole, thus causes the waste of cement paste; Two is the anchor bar bodies formed after slip casting is structures straight up and down that diameter is identical with bolthole, not enough with the frictional resistance of the soil body, and then limits the further raising of anti-floating bearing capacity of whole anchor pole.
Utility model content
The technical problems to be solved in the utility model is, provides a kind of and slurries can be avoided to be diffused into cause waste outside hole in the soil body and can increase substantially the construction equipment of the anti-slub type anti-float anchor rod of anti-floating bearing capacity.
Technical solution of the present utility model is, a kind of construction equipment of anti-slub type anti-float anchor rod is provided, it comprises the first Grouting Pipe, second Grouting Pipe and anchor pole muscle, the grout outlet of the first Grouting Pipe is positioned at its bottom, the tube wall of the second Grouting Pipe is provided with a grout outlet every certain altitude, it also comprises the slurry pouch of a top end opening, first Grouting Pipe, second Grouting Pipe and anchor pole muscle all insert in slurry pouch through slurry pouch top end opening, first Grouting Pipe, slurry pouch top opening is stretched out on second Grouting Pipe and anchor pole muscle top and the bottom of three is positioned at bottom slurry pouch, slurry pouch top and bottom are banded on anchor pole muscle by rope respectively, slurry pouch is provided with one every certain altitude slurry pouch is banded in waistband on anchor pole muscle, the external diameter of waistband equals the aperture of bolthole, many whole slurry pouch be divide into the segmentation of multiple slurry capsule by waistband, be provided with in connection in every bar waistband, the logical slurry short tube of lower two slurry capsules segmentation.
Utilize the construction method of the construction equipment of anti-slub type anti-float anchor rod of the present utility model, its step comprises:
A, with rope, waistband by slurry pouch and the first Grouting Pipe, the second Grouting Pipe, logically starch short tube and anchor pole muscle is bundled into assembly;
B, measure position, hole on beat bolthole;
C, assembly is put into bolthole;
D, through the first Grouting Pipe first pressure inject cement mortar, cement mortar fills whole slurry pouch from the bottom up through each section of logical slurry short tube bottom slurry pouch;
E, through the second Grouting Pipe again pressure inject cement paste, after twice slip casting, each slurry capsule segmentation can be expanded and be clamp-oned the soil body and each waistband keeps original external diameter, thus forms the injecting cement paste of anti-slub type;
F, carry out stretch-draw with jack pair anchor pole muscle top, stretch-draw terminates rear locking anchor pole muscle.
The construction equipment of the anti-slub type anti-float anchor rod of the utility model compared with prior art, has the following advantages and effect:
Because slurry pouch can by the cement paste of twice injection parcel wherein, therefore can effectively avoid slurries along the soil body outside the infiltration hole, gap of the soil body, stop slurries and be diffused into the waste that the soil body causes; And, more crucially, after twice slip casing by pressure, the waistband position dimension of slurry pouch is constant and starch the aperture of external diameter much larger than bolthole of capsule segmentation, its volume significantly expands, and then gets into the soil body of hole sidewall, defines the structure of anti-slub type, significantly strengthen with the frictional resistance of the soil body, and then the anti-floating bearing capacity of whole anchor pole is greatly improved.General slub type refers to that ring is large and bamboo bar section is little, and described anti-slub type is just in time contrary with slub type, and the external diameter that namely little and common section of the external diameter of section header and waistband starches capsule segmentation is large.
As improvement, each locating rack is made up of four orthogonal and isometric support bars and an annulus muscle, and every root support bar the inner is all fixed with anchor pole muscle, and every root support bar outer end is all fixed with annulus muscle; The external diameter of annulus muscle equals the aperture of bolthole, like this, can ensure that anchor pole muscle keeps vertically and anchor pole muscle is positioned on the axis of bolthole.
Accompanying drawing explanation
Fig. 1 be the construction equipment of the utility model anti-slub type anti-float anchor rod anti-float anchor rod of constructing out face sectional structure schematic diagram.
Fig. 2 is the sectional structure schematic diagram along A-A direction in Fig. 1.
Fig. 3 is the sectional structure schematic diagram along B-B direction in Fig. 1.
Fig. 4 is the plan structure schematic diagram of the anti-float anchor rod that the construction equipment of the anti-slub type anti-float anchor rod of the utility model is constructed out.
1, first Grouting Pipe shown in figure, the 2, second Grouting Pipe, 3, anchor pole muscle, 4, pouch is starched, 4.1, slurry capsule segmentation, 5, waistband, 6, logical slurry short tube, 7, locating rack, 7.1, support bar, 7.2, annulus muscle, 8, bunchy top band, 9, bundle tail band, 10, wedge shape pit, 11, bearing plate, 12, nut.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the construction equipment of the anti-slub type anti-float anchor rod of the utility model, it comprises the slurry pouch 4 made by geotextiles of first Grouting Pipe 1, the second Grouting Pipe 2, anchor pole muscle 3 and a top end opening.A first Grouting Pipe 1 only grout outlet and this grout outlet is positioned at the bottom of the first Grouting Pipe 1.Second Grouting Pipe 2 is provided with multiple grout outlet and multiple grout outlet is uniformly distributed from the bottom up along the tube wall of the second Grouting Pipe 2, and the difference in height of each grouting port is 500mm.First Grouting Pipe 1, second Grouting Pipe 2 and anchor pole muscle 3 all insert in slurry pouch 4 through slurry pouch 4 top end opening.Slurry pouch 4 top opening is all stretched out on first Grouting Pipe 1, second Grouting Pipe 2 and anchor pole muscle 3 top and the bottom of the first Grouting Pipe 1, second Grouting Pipe 2 and anchor pole muscle 3 is all positioned at bottom slurry pouch 4.Slurry pouch 4 top and bottom are banded on anchor pole muscle 3 by rope respectively, tight formation bunchy top band 8 is tied up in the upper shed of slurry pouch 4 by the rope being banded in slurry pouch 4 top, first Grouting Pipe 1, second Grouting Pipe 2 and anchor pole muscle 3 top all exceed bunchy top band 8, and the rope being banded in slurry pouch 4 bottom forms bundle tail band 9.Slurry pouch 4 is provided with one every certain altitude slurry pouch 4 is banded in waistband 5 on anchor pole muscle 3, waistband 5 is also that rope is entwined.The external diameter of waistband 5, bunchy top band 8 and bundle tail band 9 is equal to the aperture of bolthole.Many whole slurry pouch 4 be divide into multiple slurry capsule segmentation 4.1 by waistband 5, the logical slurry short tube 6 being communicated with upper and lower two slurry capsules segmentation 4.1 is provided with in every bar waistband 5, namely logical slurry short tube 6 is also wound around by waistband 5 and leads to slurry short tube 6 and is positioned at slurry pouch 4, logical slurry short tube 6 upper end starch capsule segmentation 4.1 be communicated with upper one, and logical short tube 6 lower end of starching is starched capsule segmentation 4.1 be communicated with next.
Anchor pole muscle 3 is provided with a locating rack 7 every certain altitude, locating rack 7 is positioned at slurry pouch 4, each locating rack 7 is made up of four orthogonal and isometric support bars 7.1 and an annulus muscle 7.2, every root support bar 7.1 the inner is all welded and fixed with anchor pole muscle 3, and every root support bar 7.1 outer end is all welded and fixed with annulus muscle 7.2.
Utilize the construction method of the construction equipment of the anti-slub type anti-float anchor rod of the utility model, its step is as follows.
A, with rope, waistband 5 by slurry pouch 4 and the first Grouting Pipe 1, second Grouting Pipe 2, logically starch short tube 6 and anchor pole muscle 3 is bundled into assembly.
B, measure position, hole on beat bolthole.This step is concrete in two kinds of situation, and the first, when also not constructing underground structure bottom plate, is directly holed to soil layer, the second is when carrying out anti-floating reinforcing to original underground structure, the base plate of underground structure exists, then need with instrument as underplate concrete worn by pneumatic pick cutter, then hole to soil layer.During boring, if the silt easily caved in, sand then adopt mud off, if the soil body not easily caved in then clear water retaining wall.
C, assembly is put into bolthole; Now, the external diameter of the slurry pouch of the folding contracting formula of non-slip casting is less than or equals bolthole, and slurry pouch is made up of geotextiles, and possess elasticity, the external diameter after its slip casting swells equals 2 ~ 3 times of bolthole aperture, and can prevent cement paste seepage.And the locating rack 7 that anchor pole muscle 3 is equipped with every certain altitude can ensure that anchor pole muscle 3 vertically and be positioned at the center of bolthole.
D, through the first Grouting Pipe 1 first pressure inject cement mortar, cement mortar fills whole slurry pouch 4 from the bottom up through each section of logical slurry short tube 6 bottom slurry pouch 4; The cement of cement mortar adopts P42.5 Portland cement, and cement-sand ratio is 1:0.5 ~ 1:0.8, and water/binder ratio is 0.4 ~ 0.5, and grouting pressure is 0.5 ~ 0.8MPa.
E, to reach after 5MPa until the intensity of the injecting cement paste of slip casting first and carry out slip casting again, namely through the second Grouting Pipe 2 again pressure inject cement paste, this cement paste is neat slurry, and water/binder ratio is 0.45 ~ 0.5, and grouting pressure is 1.0 ~ 1.5MPa.After twice slip casting, each slurry capsule segmentation 4.1 can be expanded several times clamp-on the soil body and each waistband 5 keeps original external diameter, thus forms the injecting cement paste of anti-slub type.
Injecting cement paste after f, secondary grouting to be done intensity reach 15MPa after, carry out prestressed stretch-draw with jack pair anchor pole muscle 3 top, stretch-draw terminates rear locking anchor pole muscle 3.
This step is be divided into two kinds of situations to carry out equally, if the base plate of the anti-float anchor rod of directly constructing in the soil body and underground structure is not also built, then and the underplate concrete of first monobloc cast underground structure before stretch-draw, and at the reserved wedge shape pit 10 of plate top surface.Base plate as underground structure exists, then first filled in the hole of being dug out by pneumatic pick in step b with concrete, and equally at the reserved wedge shape pit 10 of plate top surface.
At the bottom of the hole higher than wedge shape pit 10, the top of anchor pole muscle 3, one piece of bearing plate 11 is fixed on the centre bore of at the bottom of the hole of wedge shape pit 10 and anchor pole muscle 3 top through bearing plate 11, on an external screw thread nut 12 being spun on anchor pole muscle 3 top but nut 12 first do not screw, with jack with 1 times of axial tension design load stretching anchor rod muscle 3 and continuing load 10 ~ 15 minutes, nut 12 also screws by last off-load to 0.3 times axial tension design load, and nut 12 is welded on bearing plate 11, finally to dismantle jack, anchor pole muscle 3 top redundance is cut or is folded in wedge shape pit 10, finally with concrete, wedge shape pit 10 is filled and led up.
Certainly, inner thread sleeve also can be utilized to connect one section of reinforcing bar of plugging on anchor pole muscle 3 top, jack pair reinforcing bar of plugging into carries out stretch-draw, and stretch-draw terminates directly to unscrew plug into reinforcing bar and inner thread sleeve afterwards, is convenient to recycle, avoids the long waste in anchor pole muscle 3 top.
Claims (2)
1. the construction equipment of an anti-slub type anti-float anchor rod, it comprises the first Grouting Pipe (1), second Grouting Pipe (2) and anchor pole muscle (3), the grout outlet of the first Grouting Pipe (1) is positioned at its bottom, the tube wall of the second Grouting Pipe (2) is provided with a grout outlet every certain altitude, it is characterized in that: it also comprises the slurry pouch (4) of a top end opening, first Grouting Pipe (1), second Grouting Pipe (2) and anchor pole muscle (3) all insert in slurry pouch (4) through slurry pouch (4) top end opening, first Grouting Pipe (1), slurry pouch (4) top opening is stretched out on second Grouting Pipe (2) and anchor pole muscle (3) top and the bottom of three is positioned at slurry pouch (4) bottom, slurry pouch (4) top and bottom are banded on anchor pole muscle (3) by rope respectively, slurry pouch (4) is provided with one every certain altitude will starch pouch (4) and be banded in waistband (5) on anchor pole muscle (3), the external diameter of waistband (5) equals the aperture of bolthole, many whole slurry pouch (4) be divide into multiple slurry capsule segmentation (4.1) by waistband (5), be provided with in connection in every bar waistband (5), the logical slurry short tube (6) of lower two slurries capsule segmentation (4.1).
2. the construction equipment of anti-slub type anti-float anchor rod according to claim 1, it is characterized in that: anchor pole muscle (3) is provided with a locating rack (7) every certain altitude, locating rack (7) is positioned at slurry pouch (4), each locating rack (7) is made up of four orthogonal and isometric support bars (7.1) and an annulus muscle (7.2), every root support bar (7.1) is inner all fixes with anchor pole muscle (3), and every root support bar (7.1) outer end is all fixed with annulus muscle (7.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520119891.2U CN204475326U (en) | 2015-03-01 | 2015-03-01 | The construction equipment of anti-slub type anti-float anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520119891.2U CN204475326U (en) | 2015-03-01 | 2015-03-01 | The construction equipment of anti-slub type anti-float anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204475326U true CN204475326U (en) | 2015-07-15 |
Family
ID=53631129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520119891.2U Withdrawn - After Issue CN204475326U (en) | 2015-03-01 | 2015-03-01 | The construction equipment of anti-slub type anti-float anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204475326U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104790392A (en) * | 2015-03-01 | 2015-07-22 | 宁波鸿晨建设有限公司 | Construction device and method for reverse bamboo joint type anti-floating anchor rod |
| CN107747498A (en) * | 2017-09-06 | 2018-03-02 | 中国科学院力学研究所 | A kind of mould bag filled type anchor bolt grouting apparatus and method |
| CN108104856A (en) * | 2017-12-12 | 2018-06-01 | 华北科技学院 | A kind of slurry pouch grouted anchor bar and application method with control system |
| CN110608062A (en) * | 2019-10-09 | 2019-12-24 | 中国矿业大学 | Multi-section hollow grouting anchor cable and supporting method |
| CN113137273A (en) * | 2021-04-08 | 2021-07-20 | 苏州中车建设工程有限公司 | Large-diameter shield tunnel deformation control structure and construction method thereof |
-
2015
- 2015-03-01 CN CN201520119891.2U patent/CN204475326U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104790392A (en) * | 2015-03-01 | 2015-07-22 | 宁波鸿晨建设有限公司 | Construction device and method for reverse bamboo joint type anti-floating anchor rod |
| CN107747498A (en) * | 2017-09-06 | 2018-03-02 | 中国科学院力学研究所 | A kind of mould bag filled type anchor bolt grouting apparatus and method |
| CN107747498B (en) * | 2017-09-06 | 2019-03-22 | 中国科学院力学研究所 | A kind of mould bag filled type anchor bolt grouting device and method |
| CN108104856A (en) * | 2017-12-12 | 2018-06-01 | 华北科技学院 | A kind of slurry pouch grouted anchor bar and application method with control system |
| CN108104856B (en) * | 2017-12-12 | 2023-12-12 | 华北科技学院 | Grouting anchor rod with control system and grouting bag and use method |
| CN110608062A (en) * | 2019-10-09 | 2019-12-24 | 中国矿业大学 | Multi-section hollow grouting anchor cable and supporting method |
| CN113137273A (en) * | 2021-04-08 | 2021-07-20 | 苏州中车建设工程有限公司 | Large-diameter shield tunnel deformation control structure and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104790392B (en) | The constructing device of anti-slub type anti-float anchor rod and construction method | |
| CN204475326U (en) | The construction equipment of anti-slub type anti-float anchor rod | |
| CN102587358B (en) | Construction technology of high polymer material post-grouting squeezed cast-in-place pile | |
| CN102493437B (en) | Grouting-type micro steel pipe pile and grouting reinforcement method | |
| CN203475429U (en) | Combined type anchor rod suitable for loess side slope | |
| CN102561271B (en) | Polymer grout injected earth-rock dam and construction method thereof | |
| CN102051879B (en) | Process for constructing soil anchor | |
| CN103114578B (en) | Grouting molding pedestal pile and construction method thereof and pedestal expanding device | |
| CN201033872Y (en) | Slip casting type anchor bar | |
| CN207436069U (en) | A kind of deep foundation pit supporting structure | |
| CN203613568U (en) | Anti-floating cement soil pile and anti-floating anchor rod combined anti-floating system | |
| CN203361150U (en) | Composite anti-floating anchor pile | |
| CN206337556U (en) | A kind of grouting behind shaft or drift lining Prefabricated hollow pile | |
| CN101793027A (en) | Core-grouted static pressure anchor rod pile | |
| CN104196021A (en) | Uplift pile structure and construction method thereof | |
| CN202247947U (en) | Soil retaining structure with anti-sliding cement soil piles | |
| CN204125941U (en) | Uplift pile structure | |
| CN204080796U (en) | Injection forming Variable Section Steel pile tube expands crowded device | |
| CN201635072U (en) | Centrally grouted static-pressured anchor pile former | |
| CN202247910U (en) | Soil retaining structure with different inclination angles of anti-skid cement soil pile | |
| CN212801508U (en) | Grouting spiral steel pile for foundation stabilization | |
| CN206667239U (en) | One kind expansion uplift pile | |
| CN205100992U (en) | Self -adaptation lining cutting structure for can bear high interior extra income does simultaneously | |
| CN204940272U (en) | The spiral expansion anchor rod of a kind of special non-grouting of earthen ruins | |
| CN207739247U (en) | A kind of bored concrete pile grouting behind shaft or drift lining structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150715 Effective date of abandoning: 20171114 |