CN204098014U - A kind of Y shape three-dimensional band drain strength core discrete material composite pile - Google Patents
A kind of Y shape three-dimensional band drain strength core discrete material composite pile Download PDFInfo
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- CN204098014U CN204098014U CN201420499505.2U CN201420499505U CN204098014U CN 204098014 U CN204098014 U CN 204098014U CN 201420499505 U CN201420499505 U CN 201420499505U CN 204098014 U CN204098014 U CN 204098014U
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Abstract
The utility model discloses a kind of Y shape three-dimensional band drain strength core discrete material composite pile, it is characterized in that the center of discrete material pile arranges Y shape solid panel, three-dimensional band drain core body is Y-shaped, namely band drain sidewall is between two in 120 ° of angles, outside it, band drain outsourcing filter membrane is set, in each Y shape three-dimensional band drain sidewall midpoint, flexible reinforcement bar is set symmetrically, during construction, three-dimensional for Y shape band drain is connected with steel plate pile top with immersed tube, then by steel immersed tube press-in ground, after immersed tube reaches projected depth, the three-dimensional band drain of tension Y shape, discrete material is injected in steel immersed tube, vibration pipe-drawing, form pile body.The utility model effectively expands the draining scope of band drain, overcome normal discharge plate construction time rewind problem, effectively prevent and treat the silting of band drain by outsourcing discrete material simultaneously, with traditional discrete material pile ratio, there is better drainage effect, there is good technical economic benefit.
Description
Technical field
The utility model relates to a kind of composite pile, particularly a kind of Y shape three-dimensional band drain strength core discrete material composite pile.Belong to field of foundation treatment, be applicable to Soft Ground engineering.
Background technology
China is vast in territory, and complex geologic conditions and various places difference are comparatively large, and soft foundation classification is many, distribution is wide, and in Dalian, Tianjin, Jiangsu, Zhejiang, the ground such as Guangdong is dispersed with the weak soil of a large amount of high-moisture percentages, high-compressibility, low bearing capacity.How effectively to improve the supporting capacity of deep soft soil foundation, control soil deformation, be one of difficult problem needing in geotechnical engineering to solve emphatically always.At present, mainly contain two classes to the treatment measures of soft foundation, a class is consolidation, and another kind of is compound foundation method.
Discrete material pile and plastic draining board are methods conventional in Soft Ground.In soft foundation, arrange vertical plastic draining board, horizontal direction arranges drainage channel, then at ground classification piling prepressing, pore water in the soil body is discharged, thus making ground generation sedimentation, foundation soil is consolidation gradually, reaches the object improving bearing capacity of foundation soil and stability.The inside of plastic draining board is the multi-pore channel strip that polyethylene or polypropylene process, outsourcing geotextile filter ruffle, and have isolation soil particle and infiltration function, plastic draining board section is little, and little to ground disturbance, efficiency of construction is high.But traditional band drain to there is draining scope too little, need intensively to set band drain otherwise drainage effect is difficult to meet the demands, cause construction period and construction cost to increase, easily produce band drain simultaneously in work progress and rewind, the problems such as band drain what is stifled, have impact on drainage effect greatly.
Rewinding of band drain is the most common construction problem also in band drain construction, causes the reason following points rewinded: (1) mud is clamp-oned in pipe.Plastic draining board is plugging in process, because pressure-bearing mud has extremely strong mobility, seal degree by shoe and intubate affects, mud is very easily clamp-oned in pipe, band drain is caused to stick at intubate inwall, when causing intubate is carried, the frictional resistance to band drain when band drain deadweight and soil body frictional force are carried in intubate, thus cause rewinding phenomenon generation; (2) clamped by the soil body.After intubate is carried, stake position pore-forming, band drain cannot be clamped by the soil body, when pile tube is mentioned comparatively soft mould soil layer time, surrounding soil may clamp band drain bottom; (3) frictional force.Plastic draining board is plugging to projected depth, due to band drain deadweight, the gravity of shoe and soil body frictional force be less than intubate is carried time frictional force to band drain, cause shoe bullet not opened, thus cause the whole phenomenon rewinded.
And adopt the mode of discrete material pile to process soft foundation, rely on rubble displacement weak soil, and form weak soil intensity is higher pile body comparatively around and improve bearing capacity and reduce sedimentation, and discrete material pile main material is rubble, material is easily purchased, and can gather materials on the spot, and therefore the cost of material is lower, and the stabilization time on basis is short, settlement amount after construction is few.Simultaneously owing to there is larger hole between discrete material pile pile body, can in the consolidation draining stage as drainage channel.
But the drainage effect of discrete material pile does not have band drain good, and easily produce what and block up phenomenon, simultaneously due to the intensification along with discrete material pile reinforcement depth, pile quality is just along with decline, and the effect of draining is subject to larger impact, Gu being limited in scope of its draining.
To there is draining scope little for the structure of existing band drain in sum, need the intensive problem setting band drain and cause cost higher of large area, traditional band drain construction technology easily causes rewinding of band drain to block up problem with what simultaneously, has had a strong impact on the drainage effect of band drain structure.And discrete material pile also also exists the poor shortcoming of drainage effect; Given this, be the object realizing expanding foundation drainage scope, prevent the what of drainage path stifled, need that a kind of drainage effect of utility model is good at present badly, easy construction, effectively can overcome three-dimensional band drain and rewind problem and the stifled discharge structure of band drain what.
Utility model content
The purpose of this utility model overcomes deficiency of the prior art, a kind of draining scope of effective expansion band drain is provided, overcome normal discharge plate construction time rewind problem, effectively prevented and treated the silting of band drain simultaneously by outsourcing discrete material, with traditional discrete material pile ratio, there is better Y shape three-dimensional band drain strength core discrete material composite pile.
This Y shape three-dimensional band drain strength core discrete material composite pile, comprises Y shape three-dimensional band drain, pile body and cross pile top, the three-dimensional band drain of Y shape is set in described discrete material pile body, the three-dimensional band drain core cross-sectional of the three-dimensional band drain of Y shape is Y-shaped, namely band drain side plate is between two in 120 ° of angles, outside it, band drain outsourcing filter membrane is set, the three-dimensional band drain sidewall of Y shape is provided with flexible reinforcement bar, during construction, the three-dimensional band drain of Y shape inserts in steel immersed tube along the gathering sill that steel immersed tube inwall is arranged, described cross pile top is provided with pile top steel plate, described pile top steel plate is arranged the with holes vertical junction steel plate that band drain three-dimensional with Y shape is connected, by pin, three-dimensional for Y shape band drain is connected with pile top steel plate, after during construction, the three-dimensional band drain of Y shape and steel immersed tube are pressed into ground to design elevation, the three-dimensional band drain of tension Y shape, discrete material is injected in steel immersed tube, vibration pipe-drawing, form pile body.
As preferably: each sidewall both sides midpoint of the three-dimensional band drain of described Y shape arranges flexible reinforcement bar symmetrically.
As preferably: described pile top steel plate diameter is slightly larger than Y shape three-dimensional band drain outsourcing circular diameter.
As preferably: according to the appearance and size with holes vertical junction steel plate that relative set group is connected with Y shape solid band drain on pile top steel plate of the three-dimensional draining of Y shape, side-wall hole bottom the three-dimensional band drain of Y shape simultaneously, arranges pin and is connected with pile top steel plate by three-dimensional for Y shape band drain.
As preferably: inside described steel immersed tube, every 120 ° arrange a gathering sill, three roads altogether, its width is slightly larger than the sidewall wall thickness of the three-dimensional band drain of Y shape.
The beneficial effects of the utility model are:
(1) adopt the three-dimensional band drain structure of Y shape, effectively expand the draining scope of band drain, obtain better drainage effect.
(2) 6 flexible reinforcement bars are evenly set at the three-dimensional band drain sidewall of Y shape, increase the intensity of band drain.
(3) is connected with steel plate pile top by three-dimensional for Y shape band drain and passes through steel immersed tube afterwards and be pressed in ground, what efficiently solve that conventional discharge plate sets rewinds problem.
(4) adopt the structure of the three-dimensional band drain of Y shape and discrete material compound, effectively prevent and treat the silting of band drain.
Accompanying drawing explanation
Fig. 1 is the stereogram of a kind of Y shape of the utility model three-dimensional band drain strength core discrete material composite pile;
Fig. 2 is the three-dimensional band drain of the utility model Y shape and steel immersed tube, pile top steel plate connecting overall schematic diagram;
Fig. 3 is that the three-dimensional band drain of the utility model Y shape is connected partial schematic diagram with pile top steel plate;
Fig. 4 is the three-dimensional band drain top view of the utility model Y shape;
Fig. 5 is the construction process figure of the utility model Y shape three-dimensional band drain strength core discrete material composite pile.
Description of reference numerals: the three-dimensional band drain 1 of Y shape, three-dimensional band drain central layer 2, band drain outsourcing filter membrane 3, flexible reinforcement bar 4,
Gathering sill 5, steel immersed tube 6, pile top steel plate 7, cross pile top 8, vertical junction steel plate 9, pin 10, pile body 11.
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.
Enforcement of the present utility model referring to figs. 1 through shown in Fig. 5, the three-dimensional band drain strength core discrete material composite pile of Y shape and construction method, three-dimensional band drain core body is Y-shaped, and namely band drain side plate is between two in 120 ° of angles, and it is outer arranges band drain outsourcing filter membrane, simultaneously; Adopt gluing mode that 6 flexible reinforcement bars are set symmetrically at the three-dimensional band drain sidewall of Y shape.
The steel immersed tube used within it wall arranges a gathering sill every 120 °, and width is slightly wider than the three-dimensional band drain sidewall thickness of Y shape, has certain depth simultaneously, is convenient to the three-dimensional band drain of Y shape and arranges gathering sill insertion along steel immersed tube inwall.
Pile top steel plate is provided with vertical junction steel plate with holes, utilizes pin to be fixed in steel plate pile top by three-dimensional for Y shape band drain.
During construction, the three-dimensional band drain of Y shape arranges gathering sill insertion along steel immersed tube inwall, pile top steel plate is arranged the with holes vertical junction steel plate that band drain three-dimensional with Y shape is connected, by pin, three-dimensional for Y shape band drain is connected with the pile top steel plate of lower bands cross pile top, after three-dimensional for Y shape band drain and steel immersed tube are pressed into ground to design elevation, discrete material is injected in steel immersed tube, because steel immersed tube is separated into three cavitys by the three-dimensional band drain of Y shape, Gu want equivalent constant speed to pour into discrete material to three cavitys when injecting discrete material in steel immersed tube, also to strain Y shape band drain simultaneously, vibration pipe-drawing afterwards, form pile body.
The three-dimensional band drain of Y shape and discrete material composite, water-drain structure comprise the three-dimensional band drain 1 of Y shape, three-dimensional band drain central layer 2, band drain outsourcing filter membrane 3, flexible reinforcement bar 4, gathering sill 5, steel immersed tube 6, pile top steel plate 7, cross pile top 8, vertical junction steel plate 9, pin 10, pile body 11.
The thickness of the three-dimensional band drain 3 of Y shape is 30mm, comprises three-dimensional band drain core body 2 from inside to outside and wraps in the band drain outsourcing filter membrane 3 outside draining central layer outward; Draining central layer is mixed by polypropylene and polyethylene mixing and is mixed with, and Y shape is made in cross section, and the external diameter of a circle of Y shape is 400mm.
Band drain outsourcing filter membrane 3 is pure polyster fibre hot rolling filter membranes, thickness 4.5mm, filter membrane dry state endwise tensile strength>=40N/cm, filter membrane hygrometric state endwise tensile strength>=45N/cm, filter membrane transmission coefficient>=4 × 10
-3cm/s, filter membrane effective aperture < 90 μm.
The flexible reinforcement bar evenly arranged at the sidewall symmetry of the three-dimensional band drain 1 of Y shape for long be 300mm, wide be the strip of 20mm, and high molecular polymer such as employing polypropylene, polyvinyl chloride etc. forms through thermoplastic or mold pressing.Breaking strength >=30KN/m, elongation at break≤3%.
The hot rolled seamless steel tube that steel immersed tube 6 adopts, internal diameter is 450mm, and firm immersed tube inner homogeneous arranges 3 road gathering sills 5, and width is the 50mm degree of depth is 30mm, and the strength grade of steel plate is Q235, and thickness of slab is 12mm.
Pile top steel plate 7 adopts hot rolled steel plate, and the strength grade of steel plate is Q235, and diameter is 500mm, and pile top steel plate 7 bottom is divided into cross pile point 8, both is linked together by welding.
According to Fig. 5, the main construction course of the three-dimensional band drain of Y shape and discrete material composite, water-drain structure is as follows:
Step one: adopt gluing mode evenly to arrange 6 flexible reinforcement bars 4 at three-dimensional band drain 1 sidewall of Y shape, flexible reinforcement bar is long is 300mm, and wide is 20mm; The thickness of three-dimensional band drain 1 sidewall of Y shape is 30mm, and width is 400mm, and the thickness of band drain outsourcing filter membrane 2 is 4mm; The external diameter of a circle of the three-dimensional band drain 1 of Y shape is 400mm;
Step 2: the three-dimensional band drain 1 of Y shape arranges gathering sill 5 along steel immersed tube 6 inwall and inserts steel immersed tube, be that three-dimensional for Y shape band drain 1 is connected with vertical junction steel plate 9 with holes by the pin 10 of 20mm by diameter, thus be that 500mm pile top steel plate 7 is connected with diameter, pile top steel plate 7 bottom is divided into cross pile point 8, both is linked together by welding;
Step 3: after construction plant cleaning is smooth, surveying setting-out, by steel immersed tube 6 and pile top steel plate 7 in place at assigned address, ensure that steady, the leading truck drift angle perpendicular to the ground of crane gear is not more than 1.5%, center is not more than 50mm with design pile position deviation;
Step 4: adopt vibratory drilling method by three-dimensional for related for firm immersed tube 6 Y shape band drain 1 vertically, evenly beat to design attitude, pressing down speed is 0.5 ~ 1.4m/min, and often sink 1m, vibration staying 1min;
Step 5: to design elevation, the three-dimensional band drain 1 of tension Y shape, pours into discrete material to steel immersed tube 6 inside, pipe is promoted in vibration, and above pulling out speed is 0.5 ~ 1.4m/min, and often pulls out 1m, vibration staying 1min, adds discrete material as required, final formation pile body 11.
Claims (5)
1. a Y shape three-dimensional band drain strength core discrete material composite pile, is characterized in that: comprise the three-dimensional band drain (1) of Y shape, pile body (11) and cross pile top (8), the three-dimensional band drain (1) of Y shape is set in described discrete material pile body (11), three-dimensional band drain core body (2) cross section of the three-dimensional band drain (1) of Y shape is Y-shaped, namely band drain side plate is between two in 120 ° of angles, outside it, band drain outsourcing filter membrane (3) is set, three-dimensional band drain (1) sidewall of Y shape is provided with flexible reinforcement bar (4), during construction, the three-dimensional band drain (1) of Y shape is inserted in steel immersed tube (6) along the gathering sill (5) that steel immersed tube (6) inwall is arranged, described cross pile top (8) is provided with pile top steel plate (7), the upper with holes vertical junction steel plate (9) band drain (1) three-dimensional with Y shape being set and being connected of described pile top steel plate (7), by pin (10), three-dimensional for Y shape band drain (1) is connected with pile top steel plate (7), after during construction, the three-dimensional band drain (1) of Y shape is pressed into ground to design elevation with steel immersed tube (6), the three-dimensional band drain (1) of tension Y shape, discrete material is injected in steel immersed tube (6), vibration pipe-drawing, form pile body (11).
2. Y shape according to claim 1 three-dimensional band drain strength core discrete material composite pile, is characterized in that: each sidewall both sides midpoint of the three-dimensional band drain (3) of described Y shape arranges flexible reinforcement bar (4) symmetrically.
3. Y shape according to claim 1 three-dimensional band drain strength core discrete material composite pile, is characterized in that: described pile top steel plate (7) diameter is slightly larger than three-dimensional band drain (3) the outsourcing circular diameter of Y shape.
4. Y shape according to claim 1 three-dimensional band drain strength core discrete material composite pile, it is characterized in that: the with holes vertical junction steel plate (9) be connected with the three-dimensional band drain (1) of Y shape in pile top steel plate (7) upper relative set (3) group according to the appearance and size of the three-dimensional draining of Y shape, simultaneously at Y shape three-dimensional band drain (1) bottom side-wall hole, pin (10) is set three-dimensional for Y shape band drain (1) is connected with pile top steel plate (7).
5. Y shape according to claim 1 three-dimensional band drain strength core discrete material composite pile, it is characterized in that: described every 120 ° of steel immersed tube (6) inner side arranges a gathering sill (5), three roads altogether, its width is slightly larger than the sidewall wall thickness of the three-dimensional band drain (1) of Y shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420499505.2U CN204098014U (en) | 2014-09-01 | 2014-09-01 | A kind of Y shape three-dimensional band drain strength core discrete material composite pile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420499505.2U CN204098014U (en) | 2014-09-01 | 2014-09-01 | A kind of Y shape three-dimensional band drain strength core discrete material composite pile |
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| CN201420499505.2U Expired - Fee Related CN204098014U (en) | 2014-09-01 | 2014-09-01 | A kind of Y shape three-dimensional band drain strength core discrete material composite pile |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234032A (en) * | 2014-09-01 | 2014-12-24 | 德州市公路工程总公司 | Y-shaped stereoscopic drain board and stiffness core discrete material composite pile and construction method |
| CN108193664A (en) * | 2017-11-28 | 2018-06-22 | 安徽万安塑料制品有限公司 | A kind of high intensity drain bar |
| CN112663592A (en) * | 2020-12-14 | 2021-04-16 | 湖北工业大学 | Multiple reinforced granular pile and its construction method |
-
2014
- 2014-09-01 CN CN201420499505.2U patent/CN204098014U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234032A (en) * | 2014-09-01 | 2014-12-24 | 德州市公路工程总公司 | Y-shaped stereoscopic drain board and stiffness core discrete material composite pile and construction method |
| CN104234032B (en) * | 2014-09-01 | 2015-11-18 | 德州市公路工程总公司 | The construction method of a kind of Y shape three-dimensional band drain strength core discrete material composite pile |
| CN108193664A (en) * | 2017-11-28 | 2018-06-22 | 安徽万安塑料制品有限公司 | A kind of high intensity drain bar |
| CN112663592A (en) * | 2020-12-14 | 2021-04-16 | 湖北工业大学 | Multiple reinforced granular pile and its construction method |
| CN112663592B (en) * | 2020-12-14 | 2022-04-15 | 湖北工业大学 | Multiple reinforced granular pile and its construction method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20200901 |