CN101906776A - Major-diameter prestressed concrete pipe pile of glass steel pipe die and preparation method thereof - Google Patents
Major-diameter prestressed concrete pipe pile of glass steel pipe die and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a major-diameter prestressed concrete pipe pile of a glass steel pipe die. A concrete lining is arraigned in a glass steel pipe external die; a reinforcement cage consisting of a prestressed longitudinal bar and a spiral stirrup is arranged in the concrete lining; and a steel end plate and a steel plate inside band are arranged at two ends of the pile. An assembled multi-section steel sleeve working component for temporarily bearing prestressing stretch-draw anchoring force is arranged on the periphery to temporarily wrap the glass steel pipe external die, a gap between the steel sleeve working component and the glass steel pipe external die is tightly wedged by using a wooden triangular block; the steel sleeve working component bears the stretch-draw anchoring force of the prestressed longitudinal bar; and a centrifugal machine rotates the steel sleeve working component to drive the glass steel pipe external die to rotate. The major-diameter prestressed concrete pipe pile with arbitrary pile body length can be manufactured on site, and overcomes the defects that the conventional major-diameter pre-tensioning method prestressed concrete pipe pile has fixed pile body length, an over-long pipe pile is difficult for long-distance transportation, a prestressed reinforcement is easy to be rusted and is easy to be cracked during transportation and hoisting, and the like.
Description
Technical field
The present invention relates to concrete prefabricated pile tube of a kind of civil engineering and preparation method thereof, the ground that is applied to fields such as bridge, port works is handled, and can produce the long pile tube of any stake easily at the scene.
Background technology
The large bridge of China's Coastal Areas and port works much adopt steel pipe pile and prestressed concrete pipe pile as measures of foundation treatment.Steel pipe pile has advantages such as penetration capacity is strong, supporting capacity is high, soil compaction effect is little, pile extension is convenient, horizontal bending resistance strong, lifting weight is little, but steel pipe pile is perishable, price is high.The prestressed concrete prefabricated tubular pile has that cost is low, the easy advantage such as assurance of pile extension convenience, short construction period, prefabricated quality, but its transport cost height, horizontal bending resistance is poor, anti-corrosive properties are poor, rapid wear during hammer piling.
Along with the fast development of long-span bridge beam, large-tonnage harbour, great diameter and long pile tube demand increases day by day.Great diameter and long prestressed concrete prefabricated tubular pile characteristics are that diameter is that 800 millimeters～1600 millimeters, single-unit length length are 30 meters～50 meters prefabricated tubular pile.Traditional prestressed concrete prefabricated tubular pile is a produce in factory, the long-distance difficult of overlength pile tube, and it is single to exist mould specification, and single-unit pile body length is fixed, need problems such as pile extension or section stake processing, the fixing contradiction with the long change of engineering design stake of the die length of stake is especially outstanding.
But field of civil engineering is needed badly, and a kind of price is low, the long arbitrarily field fabrication of stake, the novel pile tube of anti-hammering ability major diameter strong, that antiseptic property is high, horizontal bending resistance is high.Characteristics such as at present, in field of civil engineering, large diameter glass reinforced plastic sand pipe, composite glass steel pipe or the like are used widely, and it has corrosion resistance and good, high-strength light, long service life, specification is many, price is low.Utilize LARGE DIAMETER FRP tubing as the prefabricated tubular pile exterior sheathing, the periphery disposes the assembling pin-connected panel multi-segmental steel sleeve working component of temporarily bearing prestressed stretch-draw anchor power, and (sections is about 2m～3m, flange connects), adopt the centrifugal manufacture craft of concrete tubular pile, can produce pile body length " the major diameter prestressed concrete pipe pile of glass fiber reinforced plastic pipe die " arbitrarily at the scene.Pile body is by inside and outside two-layer the composition, and skin is the glass fiber reinforced plastic pipe die, and internal layer is the prestressed concrete liner.Stake of the present invention has the supporting capacity height, stake is long arbitrarily, joint is few, cost is low, antiseptic property is strong, and horizontal bending bearing capacity is big, and anti-hammering ability is strong, the penetration capacity advantages of higher.But stake field fabrication of the present invention, weak point such as easy to crack when the pile body single-unit length that has overcome traditional large diameter pretensioned prestressing concrete tubular pipe is fixed (the mould regular length is constant), the long-distance difficult of overlength pile tube, transport cost height, presstressed reinforcing steel easy-to-rust, transporting and hoisting.
Summary of the invention
Technical problem: the invention provides major diameter prestressed concrete pipe pile of a kind of glass fiber reinforced plastic pipe die and preparation method thereof, described prestressed concrete pipe pile base has the supporting capacity height, antiseptic property is strong, bending bearing capacity is big, the strong advantage of anti-hammering ability, and described preparation method can make the long prestressed concrete pipe pile arbitrarily of stake.
Technical scheme:
The major diameter prestressed concrete pipe pile of a kind of glass fiber reinforced plastic pipe die of the present invention, comprise: glass reinforced plastic pipe external mold, concrete lining, steel end plate and steel plate hoop constitute, concrete lining is located in the glass reinforced plastic pipe external mold, configuration is by cage of reinforcement pre-stressed longitudinal reinforced and that spiral stirrup is formed in the concrete lining, the steel end plate is located at the two ends of stake, described steel plate hoop is located on the steel end plate and between glass reinforced plastic pipe external mold and concrete lining, pre-stressed longitudinal reinforced heading is anchored in the anchor hole of steel end plate.
The steel sleeve working component wraps up the glass reinforced plastic pipe external mold temporarily, and the slit is with wooden corner block wedging between the two, and the steel sleeve working component is born pre-stressed longitudinal reinforced stretch-draw anchor power, and centrifuge rotates the steel sleeve working component, drives the glass reinforced plastic pipe external mold and rotates.
The preparation method of the major diameter prestressed concrete pipe pile of glass fiber reinforced plastic pipe die of the present invention,
Described glass reinforced plastic pipe external mold is large diameter glass reinforced plastic sand pipe, composite glass steel pipe finished product.
Described steel sleeve working component is an assembling pin-connected panel multi-segmental steel sleeve, and the long 2m～3m of each sections adopts flange to connect between sections, and the end is furnished with the stretch-draw anchor plate of bearing prestressed stretch-draw anchor power.
Select suitable glass fiber reinforced plastic sand inclusion composite pipes material for use according to the design length of pile tube sections, at the construction field (site), carry out the blanking of glass reinforced plastic pipe external mold; The scene stirs gluing interfacial agents, pours in the glass reinforced plastic pipe outer 1, adopts centrifugation process, and gluing interfacial agents is smeared evenly along tube wall, carries out the crude processing of inner surface of glass reinforced plastic pipe external mold; According to the design strength requirement of concrete lining,, carry out the high-strength concrete preparation with accurate measurements such as sand, stone, cement, water, high efficiency water reducing agent and reactive powders; The pre-stressed longitudinal reinforced PC rod iron material of selecting for use, according to pile body sections length, with pre-stressed longitudinal reinforced accurate fixed length, cut-out, heading, spiral stirrup is selected cold-drawn low-carbon wire or mild steel hot rolling disk reinforcing bar for use, adopt roll welding to become the cage processing technology, pre-stressed longitudinal reinforced and spiral stirrup welding are formed the pile body cage of reinforcement; The cage of reinforcement location is placed in the glass reinforced plastic pipe external mold, and steel end plate and steel plate hoop are installed in two ends, and cover inserts glass reinforced plastic pipe external mold the inside in the steel plate hoop, fills high-strength slow setting structure glue between glass reinforced plastic pipe external mold and steel plate hoop; According to the volume requirement of concrete lining, green concrete is poured in the glass reinforced plastic pipe external mold pipe with the pump guiding, evenly fill lower tube half along glass fiber reinforced plastic sand inclusion composite pipes, at many as far as possible some concrete of cloth of stretch-draw one end; The periphery of glass reinforced plastic pipe external mold, (sections is about 2m～3m to dispose the assembling pin-connected panel multi-segmental steel sleeve working component of bearing prestressed stretch-draw anchor, flange connects), form the interim workpiece of steel sleeve, use wedge with the slit wedging between glass reinforced plastic pipe external mold and the interim workpiece of steel sleeve; The steel end plate is connected with tension rod, tension rod is connected with the anchor plate of the interim workpiece of steel sleeve, by tension rod, adopts that jack pair is pre-stressed longitudinal reinforced to carry out stretch-draw, be stretched to reinforced steel bar strength 70% after, tension rod is fixed on the anchor plate of steel sleeve workpiece with big nut; The lifting centrifuge is in place, centrifuge rotates the steel sleeve workpiece, driving the glass reinforced plastic pipe external mold rotates, centrifugal speed by initial velocity, middling speed, high speed, high speed is quickened step by step, make green concrete closely knit along the even tube wall of glass reinforced plastic pipe external mold, the centrifugal setting of tubular pile concrete, centrifugation time is generally 10min～20min; The centrifugal pile tube of band mould behind the centrifugal forming is winched in the atmospheric steam maintenance pond (hole), and the quiet 1h that stops slowly is warming up to 90 ℃～100 ℃, and maintenance 6h～8h under the normal pressure reaches more than the 40MPa concrete strength; Shed stretch-draw bolt and matched moulds bolt with pneumatic impact wrench, put open, the demoulding, make pile body be subjected to prestressing force; Lifting centrifugal pile tube enters autoclave and carries out the high-temperature vapour maintenance, maximum temperature is 180 ℃～200 ℃, and saturation vapour pressure is 1.0MPa, curing time 8h～12h, concrete strength is reached more than the 80MPa, and the pile tube behind high-pressure curing can directly dispatch from the factory for stake.
The major diameter prestressed concrete pipe pile of glass fiber reinforced plastic pipe die, pile body are by inside and outside two-layer the composition, and skin is the glass reinforced plastic pipe external mold, and internal layer is the prestressed concrete liner.Utilize LARGE DIAMETER FRP tubing as the prefabricated tubular pile exterior sheathing, the periphery disposes the assembling pin-connected panel multi-segmental steel sleeve working component of temporarily bearing prestressed stretch-draw anchor power, and (sections is about 2m～3m, flange connects), adopt the centrifugal manufacture craft of concrete tubular pile, produce pile body length major diameter prestressed concrete pipe pile arbitrarily at the scene.
Stake of the present invention has, and but the field fabrication of supporting capacity height, antiseptic property are strong, the pile body bending bearing capacity is big, stake long can be arbitrarily, the pile extension welding point is few, cost is low, anti-hammering ability is strong, the penetration capacity advantages of higher.Stake of the present invention has overcome the pile body length of traditional large diameter pretensioned prestressing concrete tubular pipe and has fixed (the mould regular length is constant), the long-distance difficult of overlength pile tube, transport cost height, weak point such as easy to crack when presstressed reinforcing steel easy-to-rust, transporting and hoisting.Stake point place can be welded to connect with steel pipe pile or steel shoe easily.
Beneficial effect: the new stake of the major diameter prestressed concrete pipe pile of glass fiber reinforced plastic pipe die of the present invention type is applied to build, the pile foundation in bridge and the port works alternative bored pile, steel pipe pile, prestressed concrete pipe pile.The pile body of stake of the present invention is by inside and outside two-layer the composition, and skin is a glass fiber reinforced plastic sand inclusion composite pipes, and internal layer is the prestressed concrete liner.Utilize the major diameter glass tubing as exterior sheathing, the periphery disposes the assembling pin-connected panel multi-segmental steel sleeve working component of temporarily bearing prestressed stretch-draw anchor, and (sections is about 2m～3m, flange connects), adopt the centrifugal manufacture craft of concrete pipe, just can make the pile tube of random length easily, pile tube can be at the scene or produce in factory.But stake of the present invention has the supporting capacity height, antiseptic property is strong, bending bearing capacity is big, anti-hammering ability is strong, penetration capacity is high, the long arbitrarily field fabrication of stake, low cost and other advantages.Stake of the present invention is owing to adopt glass fiber reinforced plastic sand inclusion composite pipes as external mold, thereby, but field fabrication (can reduce the transport amount), stake is long arbitrarily, weak point such as easy to crack when the pile body length that has overcome traditional large diameter pretensioned prestressing concrete tubular pipe is fixed (the mould regular length is constant), the long-distance difficult of overlength pile tube, transport cost height, presstressed reinforcing steel easy-to-rust, transporting and hoisting.Compare with steel pipe pile, have good antiseptic property, the durability height, maintenance cost is low; Compare with traditional prestressed concrete pipe pile, have advantages such as horizontal bending resistance height, manufacture craft is simple, anti-corrosive durability is good.Stake glass outer steel sand inclusion composite pipes of the present invention has been equivalent to increase the vertical plain bars of pile tube and the quantity of reinforcement of hoop stirrup, its anti-bending strength has raising significantly than common prestressed concrete pipe pile, avoided long stake lifting cracking problem, the pile tube single-unit is made length can significantly be increased; The spiral stirrup spacing of concrete lining can suitably be amplified, and reduces the consumption of stirrup; Glass fiber reinforced plastic sand inclusion composite pipes has the lateral restraint effect to concrete lining, has improved the anti-hammering ability and the penetration capacity of concrete tubular pile.Stake of the present invention is particularly useful for great diameter and long pile foundation engineering in long span bridge beam, large-tonnage harbour, the ocean engineering.
Description of drawings
Fig. 1 is a pile body arrangement of reinforcement generalized section;
Fig. 2 is a pile body preparation method schematic diagram;
Fig. 3 is the pile body sectional schematic diagram;
Fig. 4 is a pile body termination node drawing.
Have among the figure: glass reinforced plastic pipe external mold 1; Concrete lining 2; Pre-stressed longitudinal reinforced 3; Spiral stirrup 4; Steel end plate 5; Steel plate hoop 6; The interim workpiece 7 of steel sleeve, wedge 8, flange 9, tension rod 10, prestress anchoraging plate 11.
The specific embodiment
A kind of major diameter prestressed concrete pipe pile of glass fiber reinforced plastic pipe die, it is characterized in that, comprise: glass reinforced plastic pipe external mold 1, concrete lining 2, steel end plate 5 and steel plate hoop 6, concrete lining 2 is located in the glass reinforced plastic pipe external mold 1, configuration is by pre-stressed longitudinal reinforced 3 and the cage of reinforcement formed of spiral stirrup 4 in the concrete lining 2, steel end plate 5 is located at the two ends of stake, described steel plate hoop 6 is located on the steel end plate 5 and between glass reinforced plastic pipe external mold 1 and concrete lining 2, pre-stressed longitudinal reinforced 3 headings are anchored in the anchor hole of steel end plate 5.
Steel sleeve working component 7 interim parcel glass reinforced plastic pipe external molds 1, the slit is with wooden corner block wedging between the two, steel sleeve working component 7 is born pre-stressed longitudinal reinforced 3 stretch-draw anchor power, and centrifuge rotates steel sleeve working component 7, drives glass reinforced plastic pipe external mold 1 and rotates.
Described glass reinforced plastic pipe external mold is large diameter glass reinforced plastic sand pipe, composite glass steel pipe finished product.
A kind of preparation method of major diameter prestressed concrete pipe pile of glass fiber reinforced plastic pipe die, key step is as follows:
Described steel sleeve working component is an assembling pin-connected panel multi-segmental steel sleeve, and the long 2m～3m of each sections adopts flange to connect between sections, and the end is furnished with the stretch-draw anchor plate of bearing prestressed stretch-draw anchor power.
Below the present invention is made explanation in more detail:
The major diameter prestressed concrete pipe pile of glass fiber reinforced plastic pipe die, can be at the scene or factory produce in batches.Stake of the present invention is suitable for large bridge or large-tonnage harbour pile foundation engineering, so that bring into play its advantage.The pile tube diameter is preferably 800mm～1600mm, and the every restraining of the long 30m～50m of prefabricated single-unit stake is preferably 20～30 times of calibers as length.Construction technology process is: concrete preparation---the crude processing in glass reinforced plastic pipe inner surface interface---cage of reinforcement makings---cage of reinforcement enters the glass fiber reinforced plastic pipe die---steel end plate and steel plate hoop are installed---pump line is led the concrete placing cloth---on-site consolidation steel sleeve workpiece---prestressed stretch-draw---centrifugal setting---elementary stream curing---put open, the demoulding---steam curing at high pressure---the lifting transportation---is welded pile extension---piling construction.In the field fabrication of major diameter prestressed concrete pipe pile or produce in factory construction operation of glass fiber reinforced plastic pipe die, must be noted that and promptly grab thin each link that concrete key point for process is as follows:
(1) high-strength concrete preparation
According to the match ratio that designs, with sand, stone, cement, water, high efficiency water reducing agent and SILICA FUME admixture etc. through accurate measurement, make the green concrete of the low slump of 5cm～8cm with the concrete forced mixer, the designing requirement strength grade of concrete is not less than C60 or C80.
(2) the crude processing in glass reinforced plastic pipe inner surface interface
Gluing interfacial agents should be made up of aqueous adhesive, high-mark cement, fine quartz sand, flyash, SILICA FUME, high efficiency water reducing agent, expansion agent etc., gluing interfacial agents should stir, pour in the glass fiber reinforced plastic sand inclusion composite pipes, adopt centrifugation process, gluing interfacial agents is smeared evenly along tube wall.When external mold was glass fiber reinforced plastic PVC clad pipe, the PVC inner tubal wall should be threaded groove, and tubular pile concrete liner and glass fiber reinforced plastic PVC clad pipe inner surface frictional force increase, and both are co-operation better.
(3) cage of reinforcement is made
Prestressing force master muscle adopts the steel bar for prestressed concrete (PC rod iron) of low loose type, there is periodically variable indentation on PC rod iron surface, with concrete good bond stress is arranged, and the PC rod iron is a mild steel, have good spot welding characteristics, the PC rod iron is fixed length, cut-out, heading accurately.It is cold-drawn low-carbon wire or the mild steel hot rolling disk reinforcing bar of 5mm～8mm that spiral stirrup adopts diameter, stake external diameter 800mm～1000mm, and the spiral bar diameter should be less than 5mm; Stake external diameter 1000mm～1200mm, the spiral bar diameter should be less than 6mm; Stake external diameter 1200mm～1600mm, the spiral bar diameter should be less than 8mm.Cage of reinforcement pitch maximum should not surpass 200mm.In 1000mm～1600mm length range, pitch is 75mm～100mm apart from the stake two ends.The pipe pile reinforcing bar carcassing adopts roll welding to become the cage processing technology.
(4) cage of reinforcement enters the glass fiber reinforced plastic pipe die
Characteristics such as the technology of the outer winding of major diameter plastic pipe glass fiber is ripe, and the LARGE DIAMETER FRP sand inclusion composite pipes is used widely, and it has corrosion resistance and good, high-strength light, long service life, specification is many, price is low.The plastic lining of composite glass steel pipe can be selected polyvinyl chloride, polyethylene or pp pipeline for use, is threaded groove in the inner lining plastic tube.The surface has been preferably the frictional force of increase stake with the soil body, and the glass fiber reinforced plastic sand inclusion composite pipes external surface should be threaded groove.In order to increase the frictional force of concrete lining and glass fiber reinforced plastic sand inclusion composite pipes, the glass fiber reinforced plastic sand inclusion composite pipes inner surface should be threaded groove.
When cage of reinforcement enters the composite glass steel pipe mould, answer center-aligned.Use cushion block, the location protective layer thickness.
(5) steel end plate and steel plate hoop are installed
Glass fiber reinforced plastic sand inclusion composite pipes, cage of reinforcement, the steel end plate (having welded cuff) made is in place according to drawing, cage of reinforcement should accurately be located with spacer pad in glass fiber reinforced plastic sand inclusion composite pipes, steel end plate and steel plate hoop are installed, steel plate hoop is enclosed within the glass fiber reinforced plastic sand inclusion composite pipes mould in answering, between glass fiber reinforced plastic sand inclusion composite pipes and stirrup plate, fill high-strength slow setting structure glue, glass fiber reinforced plastic sand inclusion composite pipes and steel end plate should hold out against, and the steel end plate is connected with tension rod, prestressed reinforcement anchor plate etc.
(6) pump line is led the concrete placing cloth
According to the green concrete consumption requirement of every centrifugal pile tube, green concrete led pouring in the glass fiber reinforced plastic sand inclusion composite pipes with pump line, evenly fill lower tube half along glass fiber reinforced plastic sand inclusion composite pipes, at many as far as possible some concrete of cloth of stretch-draw one end.
(7) assembly unit steel sleeve workpiece
The assembling pin-connected panel multi-segmental steel sleeve working component of prestressed stretch-draw anchor is born in the peripheral configuration of glass fiber reinforced plastic sand inclusion composite pipes, adopts flange, bolt to connect between the sections sleeve pipe, and a sections is about 2m～3m, should guarantee that steel pipe socket can bear prestressed stretch-draw anchor power.Use the slit wedging of wedge with glass fiber reinforced plastic sand inclusion composite pipes and peripheral steel sleeve, when guaranteeing centrifugal rotation, the drive glass fiber reinforced plastic sand inclusion composite pipes rotates synchronously.
(8) prestressed stretch-draw
The centrifugal pile tube cage of reinforcement of the stretch-draw machine that adopts jack type after to matched moulds carries out integral tension, be stretched to reinforced steel bar strength 70% after, with big nut tension rod is fixed on the steel sleeve anchor plate.
(9) centrifugal setting
The centrifugal pile tube of band assembly unit steel sleeve die worker part is winched to the centrifuge top, quicken step by step by the centrifugal speed of initial velocity, middling speed, high speed, high speed, centrifugation time is generally 10min～20min.By centrifugal closely knit moulding process, make green concrete evenly closely knit along the glass fiber reinforced plastic sand inclusion composite pipes overcoat.After the centrifugal end, the stretch-draw end is raised, toppled over the useless pulp-water that produces in the centrifugal process.
(10) elementary steam curing
The centrifugal pile tube of band mould behind the centrifugal forming is winched in the atmospheric steam maintenance pond (hole), and the quiet 1h that stops slowly is warming up to 90 ℃～100 ℃, and maintenance 6h～8h under the normal pressure reaches more than the 40MPa concrete strength.
(11) put open, the demoulding
The centrifugal pile tube of band mould after the elementary steam curing is winched on the special-purpose demoulding platform position, shed stretch-draw bolt and matched moulds bolt, make pile body be subjected to prestressing force, hang away ferrule mold then with pneumatic impact wrench.Cleaning ferrule mold, anchor plate, tension rod.For the concrete design strength grade is the centrifugal pile tube of C60, and to finished product stockyard Ma Dui, natural curing can be dispatched from the factory after reaching the intensity of dispatching from the factory with the direct handling of centrifugal pile tube after the demoulding.
(12) high-pressure steaming and cultivating
The design strength grade of concrete is the above centrifugal pile tube of C80, need that the centrifugal pile tube after the demoulding is entered autoclave again and carry out the high-temperature vapour maintenance, maximum temperature is 180 ℃～200 ℃, and saturation vapour pressure is 1.0MPa, curing time 8h～12h reaches more than the 80MPa concrete strength.Pile tube behind high-pressure curing can directly dispatch from the factory for stake.
(13) lifting transportation
The major diameter prestressed concrete pipe pile of glass fiber reinforced plastic pipe die has bigger bending bearing capacity and cracking resistance moment of flexure, glass outer steel sand inclusion composite pipes has been equivalent to increase the non-prestressing tendon structural reinforcement of pile tube, and its anti-bending strength has raising significantly than common prestressed concrete pipe pile.Therefore, the pile tube single-unit is made length can significantly be increased, to reduce on-the-spot joints, convenient construction.The prefabricated length of suggestion single-unit is 20～30 times of calibers; Long 16m～the 24m of diameter 800mm-stake, the long 20m～30m of diameter 1000mm-stake, the long 24m～36m of diameter 1200mm-stake, the long 28m～42m of diameter 1400mm-stake, the long 32m～48m of diameter 1600mm-stake.During the pile tube lifting, catch on the two ends of pile tube with special suspension hook and just can lift by crane easily.The suitable field fabrication of the major diameter prestressed concrete pipe pile of glass fiber reinforced plastic pipe die, transportation by driving transportation.
(14) welding pile extension
The pile tube welding procedure should be constructed according to standard, during the welding pile extension, the pile tube center should be up and down to directly, position with interim locator, adopt the spot welding of 4～6 places temporary fixed, carry out the pipe pile joint welding, the weld seam welding procedure should not be less than 3 roads, all weld seams should be firmly full, must not have weld defects such as slag inclusion.
(15) piling construction
The major diameter prestressed concrete pipe pile pile sinking of glass fiber reinforced plastic pipe die can adopt hammer piling or silent piling pile sinking mode, and the stake end can be made into opened type or adds the sharp formula of stake.
Claims (3)
1. the major diameter prestressed concrete pipe pile of a glass fiber reinforced plastic pipe die, it is characterized in that, comprise: glass reinforced plastic pipe external mold (1), concrete lining (2), steel end plate (5) and steel plate hoop (6), concrete lining (2) is located in the glass reinforced plastic pipe external mold (1), the cage of reinforcement that configuration is made up of pre-stressed longitudinal reinforced (3) and spiral stirrup (4) in the concrete lining (2), steel end plate (5) is located at the two ends of stake, described steel plate hoop (6) is located on the steel end plate (5) and is positioned between glass reinforced plastic pipe external mold (1) and the concrete lining (2), and pre-stressed longitudinal reinforced (3) heading is anchored in the anchor hole of steel end plate (5).
2. the major diameter prestressed concrete pipe pile of the described glass fiber reinforced plastic pipe die of claim 1, it is characterized in that, steel sleeve working component (7) wraps up glass reinforced plastic pipe external mold (1) temporarily, the slit is with wooden corner block wedging between the two, steel sleeve working component (7) is born the stretch-draw anchor power of pre-stressed longitudinal reinforced (3), centrifuge rotates steel sleeve working component (7), drives glass reinforced plastic pipe external mold (1) and rotates.
3. the preparation method of the major diameter prestressed concrete pipe pile of a claim 1,2 described glass fiber reinforced plastic pipe dies is characterized in that,
Step 1 is according to the pile tube design length, carry out glass reinforced plastic pipe external mold (1) and pre-stressed longitudinal reinforced (3) blanking, after pre-stressed longitudinal reinforced (3) heading is handled, adopt roll welding to become the cage processing technology, pre-stressed longitudinal reinforced (3) and spiral stirrup (4) welding are formed the pile body cage of reinforcement, the cage of reinforcement location is placed in the glass reinforced plastic pipe external mold (1), steel end plate (5) and steel plate hoop (6) are installed in two ends, according to the volume requirement of concrete lining (2), green concrete is poured in glass reinforced plastic pipe external mold (1) pipe with the pump guiding;
Step 2 is in the periphery of glass reinforced plastic pipe external mold (1), assembling assembly unit multi-segmental steel sleeve working component (7), long 2m～the 3m of sections of each steel sleeve working component (7), adopt flange (9) to connect, wooden wedge (8) wedging is used in slit between glass reinforced plastic pipe external mold (1) and the interim workpiece of steel sleeve (7);
Step 3 is connected tension rod (10) with steel end plate (5), tension rod (10) is connected with prestress anchoraging plate (11), by tension rod (10), adopt jack pair pre-stressed longitudinal reinforced (3) to carry out stretch-draw, be stretched to reinforced steel bar strength 70% after, tension rod (10) is fixed on the prestress anchoraging plate (11) of steel sleeve workpiece (7) tail position with big nut;
Step 4 lifting centrifuge is in place, and centrifuge rotates steel sleeve workpiece (7), drive glass reinforced plastic pipe external mold (1) and rotate, the centrifugal setting of concrete lining (2), after the steam curing, prestressing force put open, the demoulding, the pile tube moulding.
Described glass reinforced plastic pipe external mold (1) is large diameter glass reinforced plastic sand pipe, composite glass steel pipe finished product.
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| CN201010222218A CN101906776B (en) | 2010-07-07 | 2010-07-07 | Major-diameter prestressed concrete pipe pile of glass steel pipe die and preparation method thereof |
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| CN201010222218A CN101906776B (en) | 2010-07-07 | 2010-07-07 | Major-diameter prestressed concrete pipe pile of glass steel pipe die and preparation method thereof |
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| CN103953035A (en) * | 2014-05-07 | 2014-07-30 | 孔超 | Prestressed reinforced concrete threaded pipe pile |
| CN104060607A (en) * | 2014-05-29 | 2014-09-24 | 国鼎(南通)管桩有限公司 | Prestress steel pipe pile and production method of prestress steel pipe pile |
| CN106759304A (en) * | 2017-03-23 | 2017-05-31 | 广州市建筑科学研究院新技术开发中心有限公司 | A kind of new Quick Connect Kit and method for drilling follow pile tube |
| CN107268605A (en) * | 2017-07-21 | 2017-10-20 | 宁乡宁华建材有限公司 | A kind of corrosion-resistant prestressed concrete pipe pile |
| CN107268605B (en) * | 2017-07-21 | 2022-12-20 | 宁乡宁华新材料有限公司 | Corrosion-resistant prestressed concrete tubular pile |
| CN107762239A (en) * | 2017-11-07 | 2018-03-06 | 广东永基电力器材厂有限公司 | A kind of limit value prestressed concrete electric pole |
| CN108193773A (en) * | 2018-01-03 | 2018-06-22 | 鲲鳌建设有限公司 | A kind of steel-shelled reinforced concrete structural member and preparation method thereof |
| CN108908685A (en) * | 2018-07-31 | 2018-11-30 | 泰州桓通管业有限公司 | A kind of non-evaporating feeding electric pole production technology |
| EP3861173A4 (en) * | 2018-10-04 | 2022-06-29 | Sentez Insaat Denizcilik Sanayi ve Ticaret Limited Sirketi | Prestressed reinforced concrete pipe pile and a production method thereof |
| CN111037736A (en) * | 2019-11-18 | 2020-04-21 | 福建大力新型建材科技有限公司 | Prestressed concrete high-strength anti-corrosion pipe pile and production method thereof |
| CN112267744A (en) * | 2020-09-24 | 2021-01-26 | 广东泷江源水泥制品有限公司 | Non-prestressed glass steel tube-concrete composite electric pole and preparation method thereof |
| CN112302405A (en) * | 2020-09-24 | 2021-02-02 | 广东泷江源水泥制品有限公司 | Non-prestressed glass fiber reinforced plastic pipe-ultra-high performance concrete composite electric pole and preparation method thereof |
| CN112343401A (en) * | 2020-09-24 | 2021-02-09 | 广东泷江源水泥制品有限公司 | Non-prestressed glass steel tube-concrete composite electric pole and preparation method thereof |
| CN112343398A (en) * | 2020-09-24 | 2021-02-09 | 广东泷江源水泥制品有限公司 | Non-prestressed glass fiber reinforced plastic pipe-ultra-high performance concrete composite electric pole and preparation method thereof |
| CN113202173A (en) * | 2021-04-09 | 2021-08-03 | 中铁六局集团太原铁路建设有限公司 | Construction method for temporarily replacing cross-foundation-pit concrete pipe with steel pipe in deep foundation pit construction |
| CN113202173B (en) * | 2021-04-09 | 2023-03-10 | 中铁六局集团太原铁路建设有限公司 | Construction method for temporarily replacing cross-foundation-pit concrete pipe with steel pipe in deep foundation pit construction |
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