CN1646774A

CN1646774A - Foundation pile and bearing component similar therewith

Info

Publication number: CN1646774A
Application number: CN02829243.XA
Authority: CN
Inventors: 大卫·艾伦·胡贝尔; 埃尔弗莱德·欧文
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-05-10
Filing date: 2002-05-10
Publication date: 2005-07-27
Also published as: CA2484660A1; AU2002311907A1; EP1504158A4; WO2004001139A1; JP2005525490A; EP1504158A1

Abstract

A foundation pile, or similar bearing components, consists of an inner component, an surrounded tubular component made of non-metal materials, and an outer tubular component made of synthetic material with a coating layer of friction.

Description

Foundation pile or similar load-carrying unit

Technical field

The present invention relates to a kind of foundation pile and similar load assembly.

Background technology

Stake of the prior art and/or the design of similar load assembly need be satisfied following all engineering characteristics:

A) in the time of in being exposed to fresh water and/or seawater and/or sewage and/or aquatile, plant, insects or other corrosive substances, element all can not get rusty, corrosion or decomposition,

B) do not need at the scene mix concrete in advance,

C) be easy to be transported to the scene,

D) be easy to handle and equipment, in marine similar application, can be but the structural member that is not limited to stake all should be floatable partly with other,

E) do not need new expensive treatment and/or piling to drive and be provided with,

F) being not limited to the structural member part of stake etc. can on-the-spot fast connection,

G) design and the structure that is not limited to the structural member part of stake etc. all identified and admitted via state mechanism and federal agency,

H) can utilize existing engineering design code, make correlation engineering design and standard, standard consistent,

I) can provide high " skin-friction coefficient ",

J) skin-friction coefficient that Zhuan designer should be able to stake be set to the same with its soil mass of placing of expecting,

K) being not limited to " wear surface " of the structural member part of stake etc. should be fire-resistant,

L) the structural member part that is not limited to stake etc. should be damaged in shock resistance, and the stake design utilizes " wear surface " to place in transportation, install and carrying can be predicted when using load,

M) the structural member part that is not limited to stake etc. should be able to be carried out scene detection.

Owing to economy and engineering reason, marine pile design is subject to steel, wooden or metal reinforcement concrete structure in the prior art.Because of the boring to wooden elements of the corrosion of hardware and marine creature, and the maintenance cost that causes for the defective that overcomes marine pile design is all very high.

Grosse ﹠amp; Record in the patent 3,939,665 of Fehr (on February 24th, 1976): " corrosion-resistant coating is made of the rigid plastics skin " is used for protecting the H shape metal stake of existing placed in position.Grosse ﹠amp; The patent 3,939,665 of Fehr " relating under water with in half underwater environment protects the metal stake to avoid corrosion ".Grosse ﹠amp; The patent 3,939,665 of Fehr is with reference to U.S. Pat 1,013,758 (on January 2nd, 1912, Fox), 2,874,548 (February 24 nineteen fifty-nine, Drusbel et al), 3,321,924 (on May 30th, 1967, Liddell), 3,370,998 (Wiswell).These prior aries all disclose to some extent and used the erosion shield design in stakes, do not obtain remarkable success but use erosion shield in the metal stake of H shape or other irregular stakes.In fact proving this very difficulty, under many circumstances because inconvenient, is impossible obtain good condition effectively to discharge moisture between plastic outer layer inside and H shape or L shaped the outside.Grosse ﹠amp; The patent 3,939,665 of Fehr has been described and is utilized the metal stake bad why.From Grosse ﹠amp; The record that the patent 3,939,665 of Fehr is quoted: " well-known, when the surface was exposed in the atmosphere, iron was also unstable.Under this condition, iron will oxidation generates the oxide of various iron, thereby more stable than other metals.As everyone knows, this oxidation or corrosion are below the water surface, and be especially rapider below the sea.The corrosion of metal surface is more violent so-called ' district dabbles '.This district that dabbles is the zone near the water surface, alternately surfaces owing to be subjected to tidal fluctuations, and various turbulent flows such as wave and metal surface are contacted, the time and be in the water, the time and be in the air ".

Grosse ﹠amp; The patent 3,939,665 of Fehr can not satisfy all problems, and why H stake or the stake of L beam can be used for piling.Grosse ﹠amp; Stated " H stake or L beam stake rigidity are very big, and be also very firm, but because huge superficial area and made by metals such as iron, so be easy to oxidation or be corroded in corrosive environment " in the patent 3,939,665 of Fehr.Although there is etching problem, the reason of often using H stake or the stake of L beam mainly is because " superficial area is big ".Stake can be got in the soil mass by " driving ".This " driving " action can cause generation friction between soil and the stake surface.This is the skin friction of conduct stake usually.The physical support that the skin friction of stake illustrates soil mass usually and provided.When skin friction was main support pattern, " ratio of surface area and section area " just became an important economic factor in a plurality of problems.These problems can be when being not limited to: the cost that A) stake is transported to the erecting bed.This is the function that once can transport much " superficial area ".That is, friction is an important design parameter, and the friction that every structural member length produces is big more, and the whole cost of transportation is just more little, and other costs also are like this certainly.Like this, " circle " section ratio square-section and triangular-section etc. are all more effective.The present invention also can be " sawtooth " " sheet " stake under some particular case, more effective.B) to drive operation be how long the stake cost is " pushed " in the soil mass to produce the function of the amount of friction of offsetting required load in stake." ratio of surface area and section area " is big more, and the Len req that stake enters in the soil mass is just short more.C) under the edaphic condition of extremely " mire ", the static load of stake self as the ratio of the unit length of surface area, also is a design factor.Foundation pile must be able to carry all load that comprise self static load.Can increase total surface area to adapt to the friction between stake and the soil mass, also can reduce the weight of stake, save the use material of foundation pile institute supporting construction.D) common, on-the-spot soil mass comprises " hard " layer and " marsh " layer on macroscopic view.Short stake is not owing to penetrating darker marsh formation, so after installing, foundation pile is also unstable.For instance, if foundation pile enters in marsh formation or a series of marsh formation, will cause piercing through previous " waterproof " layer, thereby cause these pull-up water, thereby reduce the supporting capacity of these layers.Grosse ﹠amp; Stake is installed in the patent 3,939,665 of Fehr is and utilize at the scene " ... heavy grease or other petroleum chemicals are applied to inner surface ... ".In 1976, perhaps can put into practice Grosse ﹠amp; This of Fehr patent (3,939,665), but in today, the regulations of U.S. environment protection mechanism make this practice become very expensive.

Patent 4; 019; 301 (on October 24th, 1977; Fox) record " be used for concrete; protection system wooden and steel stake or other structures is easy to be subjected to the corrosion and the wearing and tearing of water, this system comprises the filler between outer valve jacket and outer valve jacket and the stake " in, " shell and filler are arranged in the structure unvaryingly to be protected from the erosion of water; the part of all right reconstruct wearing and tearing, to keep the integrality of structure ".Patent 4,019,301st, a kind of more new invention is in order to repair stake at the scene.In patent 4,019, record in 301 " be formed with fibrous glass around stake; the sleeve of epoxy resin or similar material, this sleeve can be provided with under the water surface or the water surface, outside in the space that forms between valve jacket and the stake; irritating has the epoxy resin grout filler to form protective coating, does not but need dehydration procedure ".As mentioned above, perhaps can put into practice this patent of Fox at that time, even but under today EPA rules legislation allow, the regulations of U.S. environment protection mechanism also can make this practice become very expensive.Except patent 4,019, beyond 301 the latency environment problem, also have a lot of structural issues.Wherein patent 4,019,301 (Fox, " shell ") or US4,023,374 (on May 17th, 1977, Colbert et al " sleeve pipe ") or 4,306,821 (on December 22nd, 1981, Moore, " external peripheral form "), perhaps 5,633,057 (on May 27th, 1997, Fawley, " synthetic reinforcing sleeve "), perhaps 5, the enforcement of 925,579 (on July 2nd, 1999, Neuner al et) all can cause structural member to produce beyond thought structural load.So these all inventions all have to increase the diameter of structural member.If do like this, initial section factor will increase.In addition,, just not only can obviously increase the bearing load of structural member, but also can significantly increase the degrees of offset of said structure element under load if use material in the above-mentioned patent.In fact, the increase of this " rigidity " is unimportant for the said structure element.But the said structure element is generally greatly and the solid memder in the complicated system.That is, when harbour, the said structure element is used to support the clamping plate on the harbour, and the increase of any rigidity all can cause load to be transferred in the bigger stake of rigidity from the less stake of rigidity.The concentrating of load will cause unpredictable load distribution in the whole dock structure system.

Patent 4,019, record in 301 " well-known, by concrete, wooden or conventional piles that steel is made can fast rotting in water, even also be like this when being strengthened by these materials ".United States Patent (USP) 5,599,599 (Mirmiran et al) have overcome patent 4; 019; problem in 301, i.e. " this invention has waterproof and insulation effect, and the steel/metal reinforcement in concrete column that exposes outside and foundation pile supporting and the protection cement core avoids corrosion ".Patent 5,599 is thought the waterproof manufacturing in 599, and utilizes high thermal insulation material, and for example FRP can not address this is that.Patent 5,599 because FRP has smooth surface character, also is to be worth querying so utilize the FRP element to carry out the shear stress transmission between FRP skin and concrete core in 599.At last, patent 5,599,599 do not propose externally to carry out between the FRP layer and concrete core bonding.Because As time goes on concrete will shrink, any initial shear Stress Transfer between FRP layer and the concrete core descends sometimes.As patent 5,633,057 put down in writing " ... concrete grout shrinks, thereby the loading transfer deficiency ... ", just shear stress transmits not enough.

In patent 5,599,599 by Figure 1A, Figure 1B, and Fig. 1 C, Fig. 1 D, Fig. 2 A, Fig. 2 B, Fig. 3 A, Fig. 3 B among each embodiment that Fig. 4 A and Fig. 4 B are provided, records " the present invention includes and be filled with concrete empty FRP layer ".But patent 5,599,599 also suggestions " the present invention can be used as concrete pile " have big skin friction but this patent can not satisfy above-mentioned FRP, can not keep its " waterproof " function when putting into soil mass.For being used as above-mentioned earth construction spare, patent 5,599,599 can not satisfy and guarantee fire prevention and/or insulation, so that skin avoids damaging, these two factors all will directly influence patent 5,599, the structural integrity in 599.

U.S. Pat 5,658,519 (on August 19th, 1997, March et al) had not both satisfied fire safety problem, did not relate to the skin friction problem yet, did not more utilize plastics to save cost.This patent does not solve the problem of shortage " rigidity " when control and driving stake.And this patent does not provide single stake on-the-spot ways of connecting of part and method yet.

U.S. Pat 5,218,810 (on June 15th, 1993 Isley.Jr) disclosed a kind of renewal that has a synthetic enhancement Layer at external surface and has strengthened concrete column, in order to strengthen the intensity of above-mentioned post.This patent needs synthetic materials to remain on " coiling " permanent character when above-mentioned reinforcement concrete column.The present invention can progressively be provided with synthetic materials on the said structure element, can also be applied on the structural beams.Under the specified conditions of seafloor foundation stake, in-situ processing stake of the prior art needs these stakes to use as beam.This patent only is a new invention more, can not assemble in advance and/or prefabricated and/or non-at-scene manufacturing/complete structural member of making, thereby this patent can not solve the problem of assembling in advance and precast construction part in the prior art.

Can believe that the present invention can further improve foundation pile and similar load-carrying unit.，

Summary of the invention

Therefore, purpose of the present invention just provides a kind of foundation pile, can avoid defective of the prior art.

According to above-mentioned purpose, it is evident that hereinafter, foundation pile among the present invention comprises medial element, structural tube-like piece around above-mentioned medial element, by nonmetals, around structural tube-like piece and coupled synthetic materials tubular layer, and the friction coatings on synthetic materials layer external surface.

The above-mentioned foundation pile of design according to the present invention, and in the patent of Grosse, use outside corrosion-resistant coating, in order to the connection metal tube, thereby it need not solve the skin friction problem in this patent.But also avoided the use metal, thus corrosion avoided, and provide wearing face, therefore overcome Fox, Moore, disclosed a lot of problems in the above-mentioned patent of Fawle and Neuner.When utilizing concrete, also also on-insulated, thus on whole length, keep continuous humidity.The compare patent of Mirmiran, the present invention has also eliminated hidden danger on fire and infringement, thereby can place different synthetic materials bands, and the patent of the Isey that compares, can also utilize and not strengthen the concrete core.

The accompanying drawing summary

Fig. 1 illustrates the view that foundation pile among the present invention vertically cuts open figure;

Fig. 2 illustrates the view that foundation pile among the present invention laterally cuts open figure;

Fig. 3 and 4 illustrates two other embodiment of the present invention.

Preferred forms of the present invention

Foundation pile can be used as marine pile or is used for the carrying support member of other application among the present invention.

The central part of foundation pile is the extensible tendon 1 that extends of axis along the longitudinal, and it can be made of metal or plastics, by the pre-tensioning of known method.The whole conduct of foundation pile of the present invention is with reference to mark 1.

The interior place of foundation pile of the present invention forms blank pipe structure or element.Structure shown in the figure forms tubular wall as illustrative example, and this tubular wall can be made of plastics, and Reference numeral is 2.The inner hollow space of said structure 2 is as reference mark 3.The internal diameter of tubular wall is compared the inner hollow space that forms between the inner surface of above-mentioned tubular wall and the above-mentioned tendon 1, and is specified by reference marker 3.

Above-mentioned blank pipe is centered on by structure tube-like piece 4.This structure tube-like piece 4 can be by different materials, if but nonmetallic material formation.These materials can be concrete, plastics, rubber, structural foam etc.On the tubular wall of blank pipe, scribble friction coatings, thereby can between blank pipe wall and structural tube-like piece, improve connection.Above-mentioned friction coatings can be made of the sand that is distributed in the bonding agent, and reference marker is 5, and these bonding agents can be resin, for example epoxy resin.But be not the absolute demand friction coatings.

The next parts of foundation pile are used as exactly around structure tube-like piece 4 outer field synthetic materialss among the present invention.The reference marker of this synthetic materials layer is 6.Synthetic materials layer 6 can be made of glass fiber or carbon fiber and/or similar material.It can form independent one deck or be made up of a plurality of thin layers.Can also comprise hardware, oxidation in medium when placing foundation pile.Above-mentioned synthetic materials can be made of the single band of different materials composition.The said structure tube-like piece can link to each other by the laminated one-tenth material of intermediate connecting layer and each.This intermediate connecting layer can be by resin, and especially epoxy resin constitutes, and reference marker is 7.

The outermost layer element of foundation pile is a friction coatings among the present invention, and reference marker is 8.This friction coatings can form the layer that comprises friction particles in a plurality of bonding agents (friction-imparting).This bonding agent can be a resin, epoxy resin for example, and above-mentioned particle can be selected according to the medium at foundation pile place.Tiny for instance polymerization soil, for example sandy soil etc.The friction composition of above-mentioned friction coatings filler is sand also.For organic soil, low cohesive soil such as marsh for example, the filler in the friction coatings can also be a crushed rocks.

Manufacturing procedure comprises following process:

I) friction coatings is coated on the above-mentioned blank pipe, but not always not like this,

Ii) form concrete and/or plastics and/or rubber and/or structural foam around above-mentioned blank pipe,

Iii) the synthetic materials layer is formed and is fixed as the surface of concrete and/or plastics and/or rubber and/or structural foam element,

Iv) select and the friction coatings material is fixed on the synthetic materials layer.

V) replacedly interior friction coatings is added on the synthetic layer, and utilizes core material to fill this layer.

With regard to " driving foundation pile ", when foundation pile is vibrated at the top or is knocked and when driving, drive load need be delivered to the most advanced and sophisticated of foundation pile and and the contacted foundation pile of soil horizon surface, power that soil horizon hampers this " driving ".When the bucket portion of foundation pile needn't be designed to have the ability of resisting hammering blow, foundation pile just must be strengthened coming balance-impact towards the end that hammer exposes, so that will drive the bucket portion that load is delivered to foundation pile equably.

Seek the tie point of each foundation pile portion, the normal length of given standard setting is restricted to 40 to 45 feet, and this normally fixes or connect the mounting condition of a plurality of foundation piles parts.Just after first was driven in the soil, stake drives operation must be with next foundation pile partial fixing.Consider from economic cause, need connection procedure fast.

Via sealing and/or being tensioned in the posttension pipe of said structure behind the sealed entry again, can make and make again, transportation, install and after installing, in order to the globality of monitoring structural, and before the superstructure that is provided with on the foundation pile of installing, among, test load setting afterwards all can be placed strain gauge after this on the posttension cable wire.

Can step by step the synthetic materials on the structural member core be applied to not be " surrounding " reinforced core compression material among the present invention.This just can with but be not limited to structural beam.Be marine pile, handling under the particular case of stake that the scene just need be with these stake designs as " beam ".

The following example that provides is to illustrate how to utilize the marine pile that designs among the present invention to satisfy following engineering properties needs:

A) in the time of in being exposed to fresh water and/or seawater and/or sewage and/or aquatile, plant, insects or other corrosive substances, element can not get rusty, corrosion or decomposition,

B) do not need prior mix concrete at the scene,

C) be easy to be transported to the scene,

E) do not need new expensive treatment and/or stake to drive and be provided with,

F) be not limited to quick on-the-spot connection of the structural member part of stake etc.,

I) can provide high " skin-friction coefficient ",

As above a) described, suitable marine pile design should satisfy the required condition of on-the-spot pile positioning.Like this, the selection of individual component should comprise that these can not get rusty by burn into, the element that decomposes or undergo no deterioration.In fact, the designer also can need can be the independent Element Design of corrosion, this special circumstances, and we are in the back narration.Plastics, fibrous glass, carbon fiber, rubber, epoxy resin, concrete and hardware that the present invention can utilize environment to allow.

About above-mentioned b), the present invention can be designed to preformed pile.When using concrete, concrete is " shaping " in advance, has not therefore just needed prior mix concrete at the scene.

According to above-mentioned c), consider that from economic aspect of the present invention being easy to the scene that is transported to is a very important factor.Be subjected to the influence of field condition, the piling driving arrangement also should be subject to the length of single stake.The present invention satisfies this requirement by design.The length of single stake only is subject to and enters on-the-spot vehicle and the means of transportation that is adopted.

About above-mentioned d), be easy to handle and equipment, under marine and other occasions, stake should be floatable.Design among the present invention has been introduced specific processing and/or equipment configuration " hard point " in stake " bucket portion " and/or stake " end ".And and the structure-irrelevant of separately stake part, utilize the design among the present invention, thereby the stake design can be regulated " floating " performance that the volume of tensioning tendon blank pipe be guaranteed single stake by regulating diameter." (over-the-side) goes on board " loss following of sea conditions can abnormally dangerous and waste fund.About floating problem is an importance of the present invention, is exactly the weight of every volume on the other hand, and the maximum weight per volume restriction that improves transportation of user just can reduce the loss of whole cost of transportation.

About above-mentioned e), the present invention does not need expensive new piling driving arrangement.The present invention utilizes existing piling driving arrangement.

About above-mentioned f), the present invention can make a stake part can link to each other at the scene fast with another.By utilizing prior art, i.e. the upright transportation precast concrete element method of attachment that association admitted in federal and state the invention provides a kind of faster or than the more stake part method of attachment of cost-saving of prior art than prior art.

About above-mentioned g), stake design among the present invention and structure are a kind ofly used and the new mode and the method for the structural member that evaluation and federal agency are recommended by state mechanism.Utilize the element of identifying in advance to be adapted to by engineering colony faster.

About above-mentioned h), by the g among the present invention) support, utilize existing engineering design code, just can satisfy relevant engineering design and standard, standard is consistent.

About above-mentioned I), the invention provides a kind of high " skin-friction coefficient ", the design load that can surpass stake needs.The cost of foundation pile directly comes from the friction of the gross area that contacts between stake " surface " and the soil mass usually.The skin friction of area can limit the stake number of marine pile owing to contact, and a length that is driven is also directly limited by these two factors separately.The present invention satisfies stake and the contacted gross area problem of soil mass by the cross section of odd jobs design stake part separately.

About above-mentioned j), " skin-friction coefficient " and its soil mass of placing that the design among the present invention makes the designer have sizable elasticity stake are set to consistent.As mentioned above, stake design just is meant the gross contact area between skin friction and stake, the soil mass.The foundation pile engineering has the soil perforation usually.Thus, can coating be set on the stake surface, by mixing earth and/or crushed rocks, can be when being not limited to flint, and/or sand and epoxy resin and/or resin compound reach desired soil mass composition, increasing friction factor, thereby reduce the quantity of stake and the pile length that institute must drive, thereby can directly influence the cost of single stake and total basic cost.

About above-mentioned k), the present invention satisfies the fire-resistant requirement of stake.Multiple apparatus and method are provided in the prior art, utilize the skin that comprises materials such as fibrous glass and carbon fibre fabric, but these composite materials just can lose intensity immediately when being subjected to high temperature and/or fire.Can also crooked writing that surpasses all the others in the prior art and sealing be generally concrete core material.But in fact prior art has strengthened outer field insulation and waterproof effect.The present invention does not need synthetic materials to have " insulation " and " waterproof " function.Be exposed at the top of stake under the condition of potential burning things which may cause a fire disaster, design of the present invention can make above-mentioned synthetic materials be fixed on " band ", this band can be vertically and/or circumferentially and/or diagonal orientation to " the bucket portion " of stake.The place that fire can touch also should be provided with gap and hole, so that " core " material exposes outer " friction " coating.When using concrete as " core " material, during especially as marine pile, it is useful that seawater is incorporated in the concrete.Concrete, especially preform concrete if keep humidity after processing, in fact just can obtain structural strength.Under the situation that runs into fire, the advantage of this " opening " form can make above-mentioned core material have sizable " heat sink " exactly, if concrete before the loss of synthetic materials layer, can dispel the heat for a long time from the synthetic materials layer." friction " coating is as natural insulator, for temperature-sensitive synthetic materials layer provides protection outward.

About above-mentioned l), above-mentioned outer " friction " coating can be placed in transportation, the load that carrying can be predicted when installation and use.If the synthetic materials layer was made a mess of in each stage when using, collision or other infringements just can not be satisfied the processing operation relevant with locations of structures in the prior art, may produce potential damage hidden danger.When utilizing a pair of marine pile of material designs such as fibrous glass when conduct, they just may run into a plurality of shortcomings.At first, can not satisfy " skin friction ".This is the key factor that influences engineering and economic consideration." skin-friction coefficient " of marine pile is similar to the friction grade of sand paper.Usually, get over the surface of " coarse ", " skin-friction coefficient " is high more.Using word " usually " to be because the soil mass that advances is impacted in stake also is to produce a side of " friction " with the stake surface.Therefore, the designer of stake can design the profile on stake surface according to the character of soil mass, thereby the length that feasible stake enters soil mass is shorter.This will make the manufacturer buy shorter stake and drive shorter length in soil, thereby more economically.The application of " friction coatings " comprises the selection of sand grade and/or the selection of crushed rocks and/or other grinding-material grades, thereby this provides the synthetic coating insulation for " skin-friction coefficient " of soil mass and fire and/or potential hazard.

About above-mentioned m), the design constraints of traditional foundation pile the detection of stratum foundation pile.The stake design that provides among the present invention can be carried out the scene by means of tensioning tendon space and detect.When placing stake, the space from the space of a stake to next stake all is equipped with seal path, reduces subsequently and/or " as snake " drives typical construction and detect picture pick-up device through whole stake.This process through pile length can be used for air supply and/or oxygen and comes oxidation to be arranged on synthetic materials layer and the hardware between " friction " coating outward.Oxidation can make burning with promotion " friction " coating layer element, thereby increases the frictional resistance around soil mass.If the use blank pipe can also provide single stake actual position information partly in the soil mass when the equipment of use.

According to another embodiment shown in Figure 3, the inside branch of medial element is filled with filler, recyclable plastics for example, recyclable rubber, concrete etc.According to another embodiment shown in Figure 4, the most inboard element also can be solid, is made of these materials or other materials.Tendon 1 also can be positioned at the inside of stake in all embodiments.

Claims

(according to the modification of the 19th of treaty)

1, a kind of foundation pile comprises medial element; Around the structural tube-like piece of above-mentioned medial element, constitute radially outwardly by nonmetals; Radially outwardly around structural tube-like piece and coupled synthetic materials tubular layer; And the friction coatings on synthetic materials layer external surface.

Claims

1, a kind of foundation pile comprises medial element; Structural tube-like piece around above-mentioned medial element is made of nonmetals; Around structural tube-like piece and coupled synthetic materials tubular layer; And the friction coatings on synthetic materials layer external surface.

2, foundation pile as claimed in claim 1 is characterized in that, the said structure tube-like piece can be selected to constitute from following group: concrete, plastics, rubber and structural foam.

3, foundation pile as claimed in claim 1 is characterized in that, above-mentioned synthetic materials layer can be selected to constitute from following group: fibrous glass and carbon fiber.

4, foundation pile as claimed in claim 1 is characterized in that, above-mentioned synthetic materials layer is made of a plurality of independent layers.

5, foundation pile as claimed in claim 1 is characterized in that, above-mentioned synthetic materials layer comprises hardware, is used for carrying out after stake is positioned over medium oxidation.

6, foundation pile as claimed in claim 1 further comprises the articulamentum that is arranged between said structure tube-like piece and the above-mentioned synthetic materials layer.

7, foundation pile as claimed in claim 6 is characterized in that, above-mentioned articulamentum is made of resin.

8, foundation pile as claimed in claim 1 further comprises the articulamentum that is arranged between above-mentioned friction coatings and the above-mentioned synthetic materials layer.

9, foundation pile as claimed in claim 8 is characterized in that, above-mentioned articulamentum is made of resin.

10, foundation pile as claimed in claim 1 is characterized in that, above-mentioned medial element forms a blank pipe.

11, foundation pile as claimed in claim 10 is characterized in that, is filled with filler in the above-mentioned blank pipe.

12, foundation pile as claimed in claim 10 is characterized in that, above-mentioned medial element is solid.

13, foundation pile as claimed in claim 1 further comprises at least one the tensioning tendon that is arranged within the medial element, extends in a longitudinal direction.