CN204282348U - A kind of reinforced concrete cast-in-situ pile tube - Google Patents
A kind of reinforced concrete cast-in-situ pile tube Download PDFInfo
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- CN204282348U CN204282348U CN201420687245.1U CN201420687245U CN204282348U CN 204282348 U CN204282348 U CN 204282348U CN 201420687245 U CN201420687245 U CN 201420687245U CN 204282348 U CN204282348 U CN 204282348U
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Abstract
The utility model relates to a kind of reinforced concrete cast-in-situ pile tube, primarily of bellend, stake closedtop closure, cover plate composition at the bottom of slightly expanded concrete pile body, stake; Be respectively arranged with interior side form bag and outer side mold bag inside and outside slightly expanded concrete pile body, interior side form bag is connected with stirrup by reinforcing bar protection cushion block with outer side mold bag; End plate is provided with bottom slightly expanded concrete pile body; In a bellend at the bottom of slightly expanded concrete pile body bottom extends to; Cast-in-situ concrete thin-wall top stake core hollow position is provided with a closedtop closure, is previously provided with and builds supporting plate bottom stake closedtop closure; Cover plate has been built on stake closedtop closure top, and the main muscle top of slightly expanded concrete pile body extends in cover plate.The utility model arranges reinforcing cage in cast-in-situ concrete thin-wall pipe pile, increases pile bearing capacity, and reduce foundation soil to the impact of pile quality, speed of application is fast, and quality is convenient to ensure, has good economic benefit and social benefit.
Description
Technical field
The utility model relates to a kind of reinforced concrete cast-in-situ pile tube, particularly a kind of reinforced concrete cast-in-situ pile tube inserting reinforcing cage.
Background technology
Pile tube has that bearing capacity ofconcreting is high, side friction is large and the advantage such as anti-bending strength is good, selected by increasing Soft Ground engineering.From construction technology, pile tube can be divided into prefabricated tubular pile and pouring pipe pile two kinds.Prefabricated tubular pile has that bearing capacity of single pile is high, pile quality is reliable, the resistance to hammering of pile body and the advantage such as crack resistance is good; But consider the factors such as transport and construction, need suitably to strengthen amount of reinforcement to gain in strength, resist the destructiveness of constructing and may bring, thus add cost; Pouring pipe pile has that speed of application is fast, stake long can free adjustment, there is not the advantage such as weak section at pile extension place, its engineering adaptability is better, but adopts prior art difficulty of construction comparatively large because of it, is not widely used in Practical Project.
The beginning of new century, Hohai University's exploitation poured in place concrete thin-wall pipe pile reinforced soft soil ground patented technology " sleeve pipe for weak sub-grade treatment becomes mould pouring pipe pile with large diameter machine " (ZL 01273182.X) and construction technology " soft foundation composite ground base construction method for field pouring pipe pile with large diameter " (CN 1367296A), the objects such as cast-in-situ concrete thin-wall construction reaches that cost is low, bearing capacity is high, the increase of the stability of ground and foundation settlement reduction that adopt relevant art to carry out.But common cast-in-situ concrete thin-wall pipe pile is plain concrete pile, and bearing capacity of pile is lower, there is obvious spinous process benefit in immersed tube process and easily produce the quality problems such as necking down.
In order to solve the problem, need a kind of easy construction of invention badly, pile affects little by geological conditions, and verticality is convenient to control, and is applicable to the cast in place concrete thin tunnel pile that cannot adopt immersed tube equipment.
Utility model content
The purpose of this utility model overcomes deficiency of the prior art, provides a kind of reliable in quality, speed of application fast, affect little, the reinforced concrete cast-in-situ pile tube that pipe pile's lateral friction is large by geological conditions.
This reinforced concrete cast-in-situ pile tube, forms primarily of bellend 6, stake closedtop closure 8 and cover plate 9 at the bottom of slightly expanded concrete pile body 1, stake; Be respectively arranged with interior side form bag 3 and outer side mold bag 2 inside and outside slightly expanded concrete pile body 1, interior side form bag 3 is connected with stirrup 5 by reinforcing bar protection cushion block 16 with outer side mold bag 2; End plate 10 is provided with bottom slightly expanded concrete pile body 1; In a bellend 6 at the bottom of slightly expanded concrete pile body 1 bottom extends to; Cast-in-situ concrete thin-wall top stake core hollow position is provided with a closedtop closure 8, is previously provided with and builds supporting plate 13 bottom stake closedtop closure 8; Cover plate 9 has been built on stake closedtop closure 8 top, and slightly expanded concrete pile body main muscle 4 top extends in cover plate 9.
As preferably: end plate 10 is annular, and width is slightly larger than the thickness of slightly expanded concrete pile body 1, and end plate 10 upper surface is respectively arranged with mould bag mounting groove 20 and reinforcement installation groove 21.
As preferably: be welded to connect in the reinforcement installation groove 21 that cast-in-situ concrete thin-wall pile body main muscle 4 bottom is inserted in end plate 10.
As preferably: stirrup 5 interval is laid with reinforcing bar protection cushion block 16, reinforcing bar protection cushion block 16 is in cuboid, and the reserved 2 row's bolts hole of horizontal direction, are fixed by fixture block 17, screw rod 18 and nut 19 and outer side mold bag 2 and interior side form bag 3.
As preferably: described interior side form bag 3 adopts both water tight and air tight material to make, outer side mold bag 2 adopts the material of slurry to make, and interior side form bag 3 and outer side mold bag 2 and reinforcing bar are protected cushion block 16 to adopt fixture block 17 to fold to be connected or to paste connection.
As preferably: build supporting plate 13 and adopt circular wooden form or steel form, build supporting plate 13 and fix by hanging muscle 12, hang muscle 12 lower end and build supporting plate 13 and be welded to connect or be connected with screw rod, upper end and main muscle 4 are welded to connect.
The utility model has following feature and beneficial effect:
(1) the utility model arranges reinforcing cage in cast-in-situ concrete thin-wall pipe pile, effectively strengthens the supporting capacity of pile body, and reinforcing cage is used as a part for locating support simultaneously, facilitates the construction of sinking mould bag.
(2) the utility model outer side mold bag adopts the material that can thoroughly starch to make, and after building pile concrete, fraction slurries infiltration depanning bag, mixes with soil around pile, form slurry infiltration district, increase the survey frictional resistance of cast-in-situ concrete thin-wall.
(3) bottom the utility model thin-wall pipe pile, bellend at the bottom of concrete pile is set, improves pile-end soil body intensity, increase the end bearing capacity of thin-wall pipe pile.
(4) be pressed in ground by mould bag again after the utility model boring, thin-wall pipe pile verticality is convenient to control, and the impact of geological conditions on pile quality is less.
(5) the utility model discarded slurry stays the cavity place of thin-wall pipe pile stake core, decreases the process of mud, and speed of application is fast, and can reduce the pollution of mud to soil.
Accompanying drawing explanation
Fig. 1 is the structural representation after bellend at the bottom of stake of the present invention has been constructed;
Fig. 2 is the connection layout of reinforcing cage and interior external mold bag;
Fig. 3 is the A-A sectional view of the connection layout of reinforcing cage and interior external mold bag;
Fig. 4 is external mold bag and locating support connected node detail drawing in the present invention;
Fig. 5 is end plate sectional view of the present invention;
Fig. 6 is the structural representation after mould bag of the present invention press-in pore-forming;
Fig. 7 to Fig. 8 is structural representation after a kind of reinforced concrete cast-in-situ tube pile construction of the present invention completes and B-B sectional view;
Description of reference numerals: slightly expanded concrete pile body 1, outer side mold bag 2, interior side form bag 3, main muscle 4; stirrup 5, bellend 6 at the bottom of stake, slurry infiltration district 7, stake closedtop closure 8; cover plate 9, end plate 10, mud 11, hangs muscle 12; build supporting plate 13, a disc shaping machine 14, fill mud 15; reinforcing bar protection cushion block 16, fixture block 17, screw rod 18; nut 19, mould bag mounting groove 20, reinforcement installation groove 21.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described further.Although the utility model will be described in conjunction with preferred embodiment, should know, not represent the utility model restriction in the described embodiment.On the contrary, the utility model will contain can be included in attached claims limit scope of the present utility model in alternative, modified and equivalent.
With reference to shown in Fig. 1, adopt rig and disc shaping machine 14 pore-forming.First drill hole of drilling machine is adopted, bore diameter is 1250mm, boring hangs in a disc shaping machine 14 and carries out reaming to degree of depth 20m ~ 25m, counter bore diameter 1300mm ~ 1500mm, counterbore depth 2m ~ 3m, pore forming process adopts and the mud 11 of water, clay (swell soil) and additive configuration carries out retaining wall.Then the concrete to reaming place perfusion C30 strength grade forms bellend 6 at the bottom of stake.
With reference to shown in Fig. 2 and Fig. 3, adopt nominal diameter be the HRB335 indented bars of 20mm as main muscle 4, select diameter to be that the HPB300 reinforcing bar of 10mm makes reinforcing cage as stirrup 5, reinforcing cage diameter 1000mm, length 22m ~ 26m.After fabrication of reinforcing cage completes; on stirrup 5, interval is laid reinforcing bar protection cushion block 16 and is formed locating support; reinforcing bar protection cushion block 16 is prefabricated into cuboid; length is 400mm; be highly 200mm ~ 250mm; width is 100mm ~ 150mm, and it is the bolt hole of 20mm that reinforcing bar protection cushion block 16 is horizontally disposed with 2 row's diameters.
With reference to shown in Fig. 4, after locating support completes, on locating support, paste thickness be side form bag 3 and outer side mold bag 2 in 8mm ~ 10mm, the on-woven geotechnique cloth that wherein, side form bag 3 is made up of polypropylene artificial fiber, this material both water tight and air tight; Outer side mold bag 2 adopts the permeable material of cement paste.Sticking with glue agent when pasting is fixed on reinforcing bar protection cushion block 16 by interior side form bag 3 and outer side mold bag 2, with diameter be 18mm screw rod 19 through the bolt hole on reinforcing bar protection cushion block 16, and with fixture block 17 and nut 19 fixing interior side form bag 3 and outer side mold bag 2 further.
With reference to shown in Fig. 5, after interior side form bag 3 and outer side mold bag 2 are pasted and are fixedly completed, install by the prefabricated annular endplate 10 of Q345 steel bottom locating support, end plate 10 upper surface reserves mould bag mounting groove 20 and reinforcement installation groove 21, wherein mould bag mounting groove 20 width 10mm ~ 12mm, reinforcement installation groove 21 width 20mm ~ 21mm.When end plate 10 is installed, main muscle 4 bottom is inserted the interior also firm welding of reinforcement installation groove 21, interior side form bag 3 and outer side mold bag 2 are filled in mould bag mounting groove 20, sticks with glue agent filling fixing.So far, interior side form bag 3, form a closed space between outer side mold bag 2 and end plate 10.
With reference to shown in Fig. 6, with loop wheel machine, locating support is sling, and in interior side form bag 3, enclosure space between outer side mold bag 2 and end plate 10, mud 15 is filled in perfusion, then sinks in pore-forming by locating support, inserts bellend 6 upper surface 1m ~ 1.5m place once at the bottom of stake bottom locating support.
With reference to shown in Fig. 7, after locating support sinks to projected depth, in mould bag, pour into slightly expanded concrete, and cemented out by filling mud 15, form slightly expanded concrete pile body 1, part mud, through outer side mold bag 2, is mixed to form slurry infiltration district 7 with soil around pile.After slightly expanded concrete pile body 1 intensity reaches requirement, the mud 11 in boring can be extracted out and cause next stake position place, also can be retained in thin-wall pipe pile stake core place.Then place circular wooden form or steel form as building supporting plate 13 at stake end, building supporting plate 13 by diameter is that 10mm hangs muscle 12 and is fixed on assigned address, hangs muscle 12 top and welds with the main muscle 4 stretching out slightly expanded concrete pile body 1.The concrete of then building C30 strength grade forms stake closedtop closure 8 and cover plate 9.
Claims (6)
1. a reinforced concrete cast-in-situ pile tube, is characterized in that: primarily of bellend (6), stake closedtop closure (8) and cover plate (9) composition at the bottom of slightly expanded concrete pile body (1), stake; Be respectively arranged with interior side form bag (3) and outer side mold bag (2) inside and outside slightly expanded concrete pile body (1), interior side form bag (3) protects cushion block (16) to be connected with stirrup (5) with outer side mold bag (2) by reinforcing bar; Slightly expanded concrete pile body (1) bottom is provided with end plate (10); In a bellend (6) at the bottom of slightly expanded concrete pile body (1) bottom extends to; Cast-in-situ concrete thin-wall top stake core hollow position is provided with a closedtop closure (8), and stake closedtop closure (8) bottom is previously provided with builds supporting plate (13); Cover plate (9) has been built on stake closedtop closure (8) top, and the main muscle of slightly expanded concrete pile body (4) top extends in cover plate (9).
2. reinforced concrete cast-in-situ pile tube according to claim 1, it is characterized in that: end plate (10) is annular, width is slightly larger than the thickness of slightly expanded concrete pile body (1), and end plate (10) upper surface is respectively arranged with mould bag mounting groove (20) and reinforcement installation groove (21).
3. reinforced concrete cast-in-situ pile tube according to claim 1, is characterized in that: be welded to connect in the reinforcement installation groove (21) that the main muscle of cast-in-situ concrete thin-wall pile body (4) bottom is inserted in end plate (10).
4. reinforced concrete cast-in-situ pile tube according to claim 1; it is characterized in that: stirrup (5) interval is laid with reinforcing bar protection cushion block (16); reinforcing bar protection cushion block (16) is in cuboid; the reserved 2 row's bolts hole of horizontal direction, are fixed by fixture block (17), screw rod (18) and nut (19) and outer side mold bag (2) and interior side form bag (3).
5. reinforced concrete cast-in-situ pile tube according to claim 1; it is characterized in that: described interior side form bag (3) adopts both water tight and air tight material to make; outer side mold bag (2) adopts the material of thoroughly slurry to make, and interior side form bag (3) and outer side mold bag (2) and reinforcing bar are protected cushion block 16 to adopt fixture block (17) to fold to be connected or to paste connection.
6. reinforced concrete cast-in-situ pile tube according to claim 1, it is characterized in that: build supporting plate (13) and adopt circular wooden form or steel form, build supporting plate (13) to fix by hanging muscle (12), hang muscle (12) lower end and build supporting plate (13) and be welded to connect or be connected with screw rod, upper end and main muscle (4) are welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420687245.1U CN204282348U (en) | 2014-11-17 | 2014-11-17 | A kind of reinforced concrete cast-in-situ pile tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420687245.1U CN204282348U (en) | 2014-11-17 | 2014-11-17 | A kind of reinforced concrete cast-in-situ pile tube |
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| CN204282348U true CN204282348U (en) | 2015-04-22 |
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| CN201420687245.1U Active CN204282348U (en) | 2014-11-17 | 2014-11-17 | A kind of reinforced concrete cast-in-situ pile tube |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165294A (en) * | 2017-07-24 | 2017-09-15 | 湖南新能匠材料厂 | A kind of heat-preservation shear wall truss building system and its construction method |
| CN109972610A (en) * | 2019-03-02 | 2019-07-05 | 华北水利水电大学 | A kind of inflation pore-creating filling pile method |
-
2014
- 2014-11-17 CN CN201420687245.1U patent/CN204282348U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165294A (en) * | 2017-07-24 | 2017-09-15 | 湖南新能匠材料厂 | A kind of heat-preservation shear wall truss building system and its construction method |
| CN109972610A (en) * | 2019-03-02 | 2019-07-05 | 华北水利水电大学 | A kind of inflation pore-creating filling pile method |
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Address after: 330095 No. 92 Lake Road, Shangrao, Jiangxi Patentee after: ZHONGDA CONSTRUCTION Co.,Ltd. Address before: 330095 No. 92 Lake Road, Shangrao, Jiangxi Patentee before: Zhongda Construction Group Co.,Ltd. Address after: 330095 No. 92 Lake Road, Shangrao, Jiangxi Patentee after: Zhongda Construction Group Co.,Ltd. Address before: 330095 No. 92 Lake Road, Shangrao, Jiangxi Patentee before: ZHONGDA CONSTRUCTION Co.,Ltd. |