CN201411684Y - Triangular concrete thin-walled folded sheet pile - Google Patents
Triangular concrete thin-walled folded sheet pile Download PDFInfo
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- CN201411684Y CN201411684Y CN2009200405981U CN200920040598U CN201411684Y CN 201411684 Y CN201411684 Y CN 201411684Y CN 2009200405981 U CN2009200405981 U CN 2009200405981U CN 200920040598 U CN200920040598 U CN 200920040598U CN 201411684 Y CN201411684 Y CN 201411684Y
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Abstract
The utility model discloses a triangular concrete thin-walled folded sheet pile. In the technical scheme, a left concrete sheet, a middle concrete sheet and a right concrete sheet are connected in sequence and folded to form a triangular tube shape, and the three corners of the triangular tube are respectively a first bottom corner crack-filling concrete band, a second bottom corner crack-fillingconcrete band and a top corner crack-filling concrete band covering part of reinforced bars of a reinforced bar net. The utility model is applied in the pile foundation and the retaining support of the deep pit, and can substitute the prefabricated reinforced concrete square pile, the bore filling pile, the prestressed centrifugal concrete tube pile, the steel tube pile and the like. Moreover, theutility model has the advantages in flat components and spatial components, and also the advantages of convenient construction, low manufacturing cost, light weight, high bending resistance, and highcross-sectional stiffness, belongs to the spatial thin-walled component, and can be conveniently hoisted. Moreover, the utility model can be prefabricated on the construction site, thereby saving thetransportation costs, and the quality of the pile body can be easily guaranteed.
Description
Technical field
The utility model relates to a kind of pile foundation technology of civil engineering structure, is applied to build, the ground in engineering field such as bridge handles and pattern foundation pit supporting structure, is applied to the retaining support in boat engineering field, port, relates in particular to a kind of triangular concrete thin-wall folded plate pile.
Background technology
The ground in a lot of coastal cities of China belongs to soft foundation, so the basis and the retaining support structure of the building in these areas, bridge, port boat engineering much adopt pilework.Common stake has Prefabricated Reinforced Concrete Square Pile, bored pile, prestressed centrifugally concrete tubular pile and steel pipe pile or the like, wherein Prefabricated Reinforced Concrete Square Pile has that construction quality more easily guarantees, the bearing capacity advantages of higher, but construction noise and vibration are bigger, produce big soil compaction effect in the pile driving process, thereby should not be used for the dense district of urban population.Bored pile construction noise and vibration are little, and cost is low, but its construction quality deviation is big, and stake side frictional resistance and end resistance are little than preformed pile, and the earth that produces in the work progress, muddy water are handled difficult.The prestressed centrifugally concrete tubular pile has the bearing capacity height, anti-ly beats, from advantages such as heavy and light, material saving, but it needs professional plant produced.Steel pipe pile is in light weight, and required pile driver energy is little, and it is little to produce the soil compaction influence in the work progress, but it costs an arm and a leg.
The construction of traditional concrete pile foundation engineering is better, but expense is higher; Engineering costs such as deep-mixed pile, husky stake, broken stone pile are low, but construction quality is difficult for guaranteeing.The new stake type that a kind of expense is lower, construction quality more easily guarantees is needed in the engineering field badly.Concrete flap technology has obtained using widely in the construction work, the flap construction technology that utilization is ripe, the new stake type of utility model triangular concrete thin-wall folded plate pile.The triangle folded plate pile has the advantage of plane institution movement and space member two aspects, as flat board, can at the construction field (site) flat board be bent into the triangle pile tube before the pile sinking in making, stacking and transportation.The triangular concrete thin-wall folded plate pile cost is low, in light weight, bending resistance is strong, rigidity of section is big, belongs to the space thin-wall member, and lifting is convenient.
The utility model content
Technical problem: the utility model provides a kind of triangular concrete thin-wall folded plate pile of being convenient to stack and transport, have simultaneously plane institution movement and space member advantage.
Technical scheme:
A kind of triangular concrete thin-wall folded plate pile described in the utility model, comprise: steel mesh reinforcement, the joining end to end and form the triangle barrel shape of steel mesh reinforcement, on three faces of triangle tube, be respectively equipped with concrete left side plate, plate and concrete right panel in the concrete, place, two base angles at the triangle tube is provided with the first base angle crack pouring concrete band and the second base angle crack pouring concrete band respectively, and the reinforcing bar of two bottom corner portions of steel mesh reinforcement is respectively the first base angle crack pouring concrete band and the second base angle crack pouring concrete band coats, be provided with drift angle crack pouring concrete band at the drift angle place of triangle tube, and the reinforcing bar of the top corner portion of steel mesh reinforcement is coated by drift angle crack pouring concrete band.
The utility model uses the ripe construction technology of concrete flap in the construction work, has invented the new stake type of triangular concrete thin-wall folded plate pile.This type construction cost is low, has the advantage of plane institution movement and space member two aspects, as flat board, can at the construction field (site) flat board be bent into the triangle pile tube before the pile sinking in making, stacking and transportation, can be used for pile foundation and deep foundation ditch retaining support.The similar prestressed centrifugally concrete tubular pile of this type engineering property, its bearing capacity height, anti-ly beat, from heavy and light, material saving, the required pile driver energy of pile sinking is little, it is little to produce soil compaction effect in the pile driving process, construction quality guarantees that more easily a side frictional resistance and end resistance are higher.
Triangular concrete thin-wall folded plate pile has the advantage of plane institution movement and space member two aspects.On smooth place, adopt and to open flat crouching and make three block concrete flat boards, treat that it reaches certain intensity after, the lifting flat board is converted into the triangle tubulose, placing plate seam concrete can form flap pile tube of the present utility model.
Triangular concrete flap pile tube as flat board, can be bent into flat board the triangle pile tube before the pile sinking at the construction field (site) in making, stacking and transportation.The similar prestressed centrifugally concrete tubular pile of this type engineering property, its bearing capacity height, anti-ly beat, from heavy and light, material saving, the required pile driver energy of pile sinking is little, it is little to produce soil compaction effect in the pile driving process, construction quality guarantees that more easily a side frictional resistance and end resistance are higher.
Soil compaction effect when reducing pile sinking and improve pile sinking and pass through people's ability, triangle thin-wall folded plate pile tube stake end should be made opened type.In the time of bigger interstitial hydraulic pressure can being produced in some stratum pile driving process, can open a little apertures in the folded plate pile side, to make things convenient for pile sinking.When the long weak point of stake is big with the stake opening, stake end black-out effect may be good inadequately, problem hereto, can adopt in the grouting of stake bottom boring pressure and also can improve end resistance simultaneously, after treating slurry consolidation, can form end cap at the stake end, thereby inaccessible effect in raising stake end or employing and rotary churning pile or deep-mixed pile are used in combination, and form compound pile.
Triangular concrete thin-wall folded plate pile can adopt the laminated production of tiling usually, and construction technology process is: the cleaning terrace, and---setting-out,---the limit mould is installed---reinforcing bar configuration---concreting---maintenance---second layer flap to the shop separation layer ...---the demoulding and transporting and hoisting---triangle folded plate pile assembly unit---cementation of fissures is built---piling construction.In the prefabricated at the scene folded plate pile operation, must be noted that and promptly grab thin each link that concrete key point for process is as follows:
(1) place bed die
Bed die should be tried one's best and be utilized on-the-spot smooth concrete floor, also available original soil rammed, placing sand, shop one deck brick, on smear a cm thick cement mixing mortar.Place table top planeness must be strict with, and the height error is not more than one millimeter, so that the control sheet metal thickness.Layout convenient as far as possible lifting assembly unit in place reduces links such as transportation, stacking.
(2) lamination separation layer
The quality of separation layer is one of key that reduces thin-wall folded plate pile lifting loss, the separation layer ingredients can add the soap waste liquid with French chalk makes, and the brushing interleaving agent should guarantee uniformity, should carry out with big brush or spread pen, anti-leak-stopping brush also can overlay layer of plastic film as separation layer again.Spill French chalk between the flaggy and add plastic sheeting and do separation layer, phenomenon generally can not stick together in the lifting.
(3) template, reinforcement fabrication
The edges of boards template should adopt the special steel form of making band comb shape tooth, can repeatedly reuse.
Main reinforcement answers strictness to be positioned on the plate kernel of section line, requires the mortar pad thickness accurate, and suspension ring reinforcing bar and steel mesh reinforcement colligation are firm.
(4) concreting
Flap is a kind of thin wall construction, during concreting, pays special attention to the control of thickness of protection tier.Strict control water/binder ratio reduces water/binder ratio and can improve concrete label, and can improve concrete intensity in mid-term, and can reduce concrete contraction and creep favourable to the quality of raising thin wall construction.Suggestion steel concrete folded plate pile adopts C20, C25 to make, and water/binder ratio should strictly be controlled between 0.36～0.42.
Flap member is thin, the plate face is big, rebar spacing is little, and material loading successively during cast adopts flat board to shake repeatedly and smashes, until do not have voids and pits bright and clean closely knit till.After smashing, shake, advises that finish in the concrete initial set process in roll extrusion and smear 3 times with the plasterer's trowel pressure, it is smooth bright and clean finally to reach the plate face with cylinder roll extrusion 2～3 times in order further to improve concrete density.In order to improve the bonding of plate face crack pouring concrete, when smearing pressure the 3rd time, should be wide 10 centimetres with coarse wood float plucking at the edge of plate longitudinal direction.
(5) curing concrete
In order to make the concrete of newly building that good curing condition be arranged, promote that intensity constantly increases, so concrete maintenance is very important.Because the plate area is big, water evaporates is fast, has carelessness can cause whole plate to parch slightly, makes concrete produce shrinkage crack, concrete is under the wet condition just can makes the intensity normal growth.Usually, after the concreting of first floor flap was finished, fully maintenance three treated that intensity reaches 50% when above, can carry out second layer production round the clock.
To promptly need use repeatedly, on a small quantity the moistening plate face of watering can after the press polish about 2 hours.Press temperature condition, timely topped straw bag water seasoning.The operation in summer should be noted preventing to be exposed to the sun.Should have freeze proof measure winter, should note preventing strong wind especially, in time takes measures.
(6) demoulding and transporting and hoisting
When reaching 70～80% design strengths, concrete strength could allow the demoulding.If the flaggy adhesion phenomenon takes place, should adopt special tool to handle.General mobile crane or the special-purpose straddle truck of adopting of flap lifting, flap lifting transportation are that flat three flat boards that crouch become edge-on process when producing, and are again folding for the first time in the work progress, should construct in strict accordance with lifting lifting rules.
(7) triangle folded plate pile assembly unit
The assembly unit of triangle thin-wall folded plate pile should adopt special-purpose auxiliary triangle steelframe and interim cushion block accurately to locate, and the folded plate pile assembly unit is a ring main in the flap work progress, must take seriously.Flap stitch up and down require straight, stitch wide evenly, forbid seam " going into " word to occur and stitch.When nonconforming, in place the opening of should slinging slightly again, not handy crowbar is corrected, in order to avoid local pressure is excessive, the damage thin-wall folded plate.The triangle flap is in place, proofread and correct after, should in time weld the reinforcing bar at seam place, make its formation triangle integral body.
(8) cementation of fissures is built
The cementation of fissures is to make prefabricated flap form the integrally-built finishing operation in space, should give to give one's full attention to.When three blocks of flat plates for sleeping in are bent into flute profile, can water down the seam concrete,, seam concrete baffle plate facility is set down, in case stitch the concrete spillage down in the flap outside; When treating that flap is bent into triangle, on stitch transverse reinforcement and should make crotch or adopt short muscle to be welded to connect, the seam concrete is gone up in perfusion then.
Top cement film and dirt are removed with wire brush in flap cementation of fissures position, and water cleans up, brush straight cement mortar together, limit swabbing mud limit concrete placing then, crack pouring concrete and flap concrete will shake the puddling reality with the harsh concrete of label.Every seam should disposable finishing, and after following seam is finished two ends sealed temporarily, carries out water storing conservation, and last seam can cover the also frequent water seasoning of straw bag, and plate stitches curing time and generally is no less than five days.
(9) piling construction
Triangle thin-wall folded plate pile stake end can be made into opened type or adds the sharp formula of stake, and pile sinking can adopt hammer piling or silent piling pile sinking mode.When the length of stake is big, the soil compaction effect when reducing pile sinking and improve pile sinking and pass through people's ability, triangle thin-wall folded plate pile tube stake end should be made opened type.When the long short and stake opening of stake was big, a stake end black-out effect may be good inadequately, can adopt in the grouting of stake bottom boring pressure, treat slurry consolidation after, can form end cap at the stake end, thereby improve the inaccessible effect in stake end, also can improve end resistance simultaneously.If employing and rotary churning pile or deep-mixed pile are used in combination, form compound pile, can further improve the work stress performance of the utility model stake.
Beneficial effect: triangular concrete thin-wall folded plate pile of the present utility model is applied to can replace Prefabricated Reinforced Concrete Square Pile, bored pile, prestressed centrifugally concrete tubular pile and steel pipe pile or the like in pile foundation and the deep foundation ditch retaining support.The triangle folded plate pile has the advantage of plane institution movement and space member two aspects, and the folded plate pile easy construction, cost is low, in light weight, bending resistance is strong, rigidity of section is big, belongs to the space thin-wall member, and lifting is convenient.Triangle thin-wall folded plate pile structural stability is better, can preset making at the construction field (site), has saved freight, and pile quality more easily guarantees.The triangle folded plate pile is the hollow thin-wall pile tube, compares with solid pile, can reduce concrete and amount of reinforcement effectively, and material usage only is 30%～50% of a solid pile, thereby the utility model stake weight is lighter, and low price.Triangular concrete thin-wall folded plate pile is specially adapted to the Soft Ground of coastal cities building, bridge and port works, can be used for the soft soil roadbed reinforcing of speedway, the ground stabilization in container stacking place, the shore protection slope protection works of port and pier, the pattern foundation pit supporting structure of soft foundation building, the ground that roadbed bankets behind the large bridge abutment is handled, the large pool reinforced soft soil ground of rivers limit intake etc.During produce in factory, suggestion adopts prestressing force pre-tensioning system manufacture craft to produce in batches, and the configuration of presstressed reinforcing steel in the pile body can further improve the anti-horizontal loading ability of pile body.Triangle thin-wall folded plate pile and rotary churning pile or deep-mixed pile are used in combination, and form compound pile, can further improve the work stress performance of the utility model stake.
Description of drawings
Fig. 1 is the utility model triangular concrete thin-wall folded plate pile sectional drawing;
Fig. 2 is a flap arrangement of reinforcement sectional drawing;
Fig. 3 is that base angle crack pouring concrete band is built the process schematic diagram;
Fig. 4 is interim installing and locating support schematic diagram;
Fig. 5 is a base angle crack pouring concrete band schematic diagram;
Fig. 6 is a drift angle crack pouring concrete band schematic diagram.
Have among the figure: concrete left side plate 1; Plate 2 in the concrete; Concrete right panel 3; Steel mesh reinforcement 4; The first base angle crack pouring concrete band 5; The second base angle crack pouring concrete band 6; Drift angle crack pouring concrete band 7; The oblique wooden form 8 in base angle; The base angle is to gallows timber bar 9; Be welded to connect short muscle 10; Drift angle hangs mould plank 11; Bar dowel and hang spring 12; Concrete is installed cushion block 13; Plastics wedge locating block 14; The interim shaped steel locating support 15 of installing.
The specific embodiment
A kind of triangular concrete thin-wall folded plate pile, comprise: steel mesh reinforcement 4, the joining end to end and form the triangle barrel shape of steel mesh reinforcement 4, on three faces of triangle tube, be respectively equipped with concrete left side plate 1, plate 2 and concrete right panel 3 in the concrete, place, two base angles at the triangle tube is provided with the first base angle crack pouring concrete band 5 and the second base angle crack pouring concrete band 6 respectively, and the reinforcing bar of two bottom corner portions of steel mesh reinforcement 4 is respectively the first base angle crack pouring concrete band 5 and the second base angle crack pouring concrete band 6 coats, be provided with drift angle crack pouring concrete band 7 at the drift angle place of triangle tube, and the reinforcing bar of the top corner portion of steel mesh reinforcement 4 is coated by drift angle crack pouring concrete band 7.
The utility model can adopt following method to make:
Setting-out is measured at first smooth good place, and the brushing interleaving agent is provided with the topping cushion block, assembling reinforcement net 4.Installation side is built simultaneously and is opened plate 2, concrete right panel 3 in the flat concrete left side plate 1 that crouches, the concrete to template, forms the concrete flat slab (Fig. 2) that three blocks of reinforcing bars link to each other.After the concrete shake is smash, in order further to improve concrete density, use cylinder roll extrusion 2～3 times, finish in the concrete initial set process in roll extrusion and smear 3 times with the plasterer's trowel pressure, it is smooth bright and clean finally to reach the plate face.In order to improve the concrete bonding in plate face cementation of fissures place, edges of boards should be provided with the triangle teeth groove, spacing 400～600mm, and tooth depth 8～12mm, after smearing pressure the 3rd time, should be wide 10 centimetres with coarse wood float plucking at the edge of plate longitudinal direction.Because the plate area is big, water evaporates is fast, has carelessness can cause whole plate to parch slightly, will make concrete produce shrinkage crack, and concrete should be in maintenance under the wet condition.Wait for when concrete reaches 70～80% design strengths, could allow the demoulding, can carry out the flat board bending.
Under lifting appliance cooperates, with concrete left side plate 1 and the 3 symmetry bendings of concrete right panel, press Fig. 3, in concrete, on the plate 2, oblique wooden form 8 in base angle and base angle are installed to gallows timber bar 9, form the template of bottom crack pouring concrete.The base angle can adopt lumps of wood material material to make to gallows timber bar 9, and spacing is generally 1.5m～2.5m.Adopt lifting appliance, on-the-spot bending left and right sides steel concrete plate.When being bent into 90 °, adopt harsh concrete, promptly slump is built the first base angle crack pouring concrete band 5 and the second base angle crack pouring concrete band 6 less than the concrete of 30mm, continue the symmetry bending, make plate 2 and concrete right panel 3 formation triangle barrel shape in concrete left side plate 1, the concrete.
Press Fig. 4, place concrete in the folded plate pile bottom cushion block 13 and plastics wedge locating block 14 are installed, so that accurately locate the flap bottom position, the cushion block spacing is generally 1.5m～2m.At the flap two ends, place the interim shaped steel locating support 15 of installing, guarantee that flap is bent into equilateral triangle.It is straight that flap seam requires, stitch wide evenly, forbid seam appearance " going into " word to stitch.Use is welded to connect short muscle 10, and the flap top rebars is welded into integral body, inserts triangle top corner part longitudinal reinforcement, forms the upper reinforcement skeleton.
Press Fig. 6, place bar dowel and hang spring 12 at the flap top corner part, the bar dowel spacing is generally 1.5m～2m, will hang mould plank 11 smooth location with hang spring and place.Adopt harsh concrete, build folded plate pile drift angle crack pouring concrete band 7; Simultaneously the first base angle crack pouring concrete band 5, the second base angle crack pouring concrete band 6 are adjusted repairing.After following seam is finished two ends are sealed temporarily, carried out water storing conservation, last seam can cover straw bag and frequent water seasoning.Fully behind the moist curing, when treating that crack pouring concrete reaches design strength, promptly form triangular concrete thin-wall folded plate pile (Fig. 1).Triangle thin-wall folded plate pile stake end can be made into opened type or adds the sharp formula of stake, and pile sinking can adopt hammer piling or silent piling pile sinking mode.
Claims (1)
1. triangular concrete thin-wall folded plate pile, comprise: steel mesh reinforcement (4), it is characterized in that joining end to end and forming the triangle barrel shape of steel mesh reinforcement (4), on three faces of triangle tube, be respectively equipped with concrete left side plate (1), plate in the concrete (2) and concrete right panel (3), place, two base angles at the triangle tube is provided with the first base angle crack pouring concrete band (5) and the second base angle crack pouring concrete band (6) respectively, and the reinforcing bar of two bottom corner portions of steel mesh reinforcement (4) is respectively the first base angle crack pouring concrete band (5) and the second base angle crack pouring concrete band (6) coats, be provided with drift angle crack pouring concrete band (7) at the drift angle place of triangle tube, and the reinforcing bar of the top corner portion of steel mesh reinforcement (4) is coated by drift angle crack pouring concrete band (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200405981U CN201411684Y (en) | 2009-05-08 | 2009-05-08 | Triangular concrete thin-walled folded sheet pile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200405981U CN201411684Y (en) | 2009-05-08 | 2009-05-08 | Triangular concrete thin-walled folded sheet pile |
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| CN201411684Y true CN201411684Y (en) | 2010-02-24 |
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| CN2009200405981U Expired - Fee Related CN201411684Y (en) | 2009-05-08 | 2009-05-08 | Triangular concrete thin-walled folded sheet pile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104805852A (en) * | 2015-05-12 | 2015-07-29 | 北京师范大学 | Landslide reinforcement structure |
| CN107700424A (en) * | 2017-11-15 | 2018-02-16 | 中船第九设计研究院工程有限公司 | A kind of yacht wharf pontoon bridge pile holding structure |
-
2009
- 2009-05-08 CN CN2009200405981U patent/CN201411684Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104805852A (en) * | 2015-05-12 | 2015-07-29 | 北京师范大学 | Landslide reinforcement structure |
| CN104805852B (en) * | 2015-05-12 | 2016-08-17 | 北京师范大学 | A kind of landslide reinforcement structure |
| CN107700424A (en) * | 2017-11-15 | 2018-02-16 | 中船第九设计研究院工程有限公司 | A kind of yacht wharf pontoon bridge pile holding structure |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20100508 |