CN1991225A - Glass fibre reinforced plastic sand inclusion push-pipe - Google Patents
Glass fibre reinforced plastic sand inclusion push-pipe Download PDFInfo
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- CN1991225A CN1991225A CN 200510137833 CN200510137833A CN1991225A CN 1991225 A CN1991225 A CN 1991225A CN 200510137833 CN200510137833 CN 200510137833 CN 200510137833 A CN200510137833 A CN 200510137833A CN 1991225 A CN1991225 A CN 1991225A
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- pipe
- glass fiber
- wedge
- shaped structure
- sand
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Abstract
The invention relates to a grp sand jacking pipe, comprising pipe head, pipe body and pipe trail. The basic body of pipe body is resin. The reinforced material layer is glass fiber and the filling layer is quartz sand or calcium carbonate. Basic bodies of pipe head and pipe trail is resin and the reinforced material layer is glass fiber. The end structure of said pipe head and pipe trail is cuniform. By bonding connection in cuniform structure, steel sleeve ring for connection of the grp sand jacking pipe can be canceled. The manufacturing cost is decreased and the construction is convenience, and meanwhile, the sealing performance for connection of jacking pipe can be improved greatly.
Description
Technical field
The present invention relates to a kind of glass fiber reinforced steel push pipe with sand, the end that particularly a kind of municipal pipeline engineering is used is the glass fiber reinforced steel push pipe with sand of wedge-shaped structure.
Background technique
In the municipal pipeline laying project, dual mode is generally arranged now: a kind of is open heavy excavation mode, ground can be excavated comprehensively, the mutual sheathed connection of pipe is placed down, again backfill gets final product again, the pipe that this mode needs is prefabricated, does not bear pressure or top power when connection and laying, and it is comparatively simple and convenient to construct; Another kind of mode is when being subjected to concrete environmental limit, such as building etc., and can not adopt heavy excavation mode tubing, can only dig working pit in advance, when the working pit operation, with one section one section on pipe underground certain depth location forward jacking pass, this operating environment needs the end of pipe to be provided with the push pipe part, the connection between the pipe is tightly connected by the collar.
Glass fiber reinforced steel push pipe with sand is as a kind of novel composite material pipeline, has light weight, high-strength, corrosion-resistant, characteristics such as the life-span is long, now is widely used in the pipe-jacking project.The glass fiber reinforced steel push pipe with sand of prior art generally is made up of tube head, pipe shaft and pipe tail, and wherein tube head, pipe tail connect by the collar when construction, and pipe shaft adopts layer of fibers and silica sand or calcium carbonate layer structure, and tube head and pipe tail adopt fiber layer structure.In said structure, the layer of fibers of pipe shaft and silica sand or calcium carbonate layer structure are mainly used in the hoop rigidity that provides required, and reduce production costs, and the fiber layer structure that tube head and pipe tail adopt is mainly used in axial strength required when jacking is provided.
In order to interconnect, existing push pipe is provided with concave station at its two ends, is provided with steel collar in concave station, by steel collar two adjacent push pipes is connected.One of problem that this ways of connecting exists is to need extra steel collar, increases cost.Two of problem is owing to can not guarantee in the push pipe production process that the outside dimension of tube head and pipe tail is in full accord; big slit appears in regular meeting between the outer wall of the collar and tube head pipe tail; even the seal ring that adopts seals, what still be difficult to avoid fully liquid in the push pipe passes through the slit to the push pipe external leakage.
Summary of the invention
Main purpose of the present invention is that the existing glass fibre reinforced plastics push pipe of solution adopts steel collar to connect the cost height of existence and the problem of sealing difference.
To achieve these goals, the invention provides a kind of glass fiber reinforced steel push pipe with sand, comprise tube head, pipe shaft and pipe tail, pipe shaft is matrix with the resin, with the glass fibre is layers of reinforcement, is packing layer with silica sand or calcium carbonate, and tube head and pipe tail are matrix with the resin, with the glass fibre is layers of reinforcement, and wherein said tube head and pipe tail end are wedge-shaped structure.
The tube head end of described glass fiber reinforced steel push pipe with sand is the evagination wedge-shaped structure, and the pipe tail end is the indent wedge-shaped structure, can be fitted and connected mutually by described evagination wedge-shaped structure and indent wedge-shaped structure between glass fiber reinforced steel push pipe with sand; Or the tube head of described glass fiber reinforced steel push pipe with sand and pipe tail end be evagination wedge-shaped structure or indent wedge-shaped structure, the glass fiber reinforced steel push pipe with sand that tube head and pipe tail end are the evagination wedge-shaped structure and tube head and manage tail end and be between the glass fiber reinforced steel push pipe with sand of indent wedge-shaped structure and can be fitted and connected mutually by described evagination wedge-shaped structure and indent wedge-shaped structure.
In order further to increase sealing and the wedge-shaped structure intensity that connects between wedge-shaped structure, the reinforcement metal layer can be sticked on the inclined-plane of described tube head and/or pipe tail end wedge-shaped structure.In order to increase the intensity on described tube head and/or pipe tail end wedge-shaped structure top, can metal end be set on this top, this metal end also can be provided with the tenon spare that stretches to tube wall, to strengthen combining of metal end and push pipe end.The metal end that reinforcement metal layer that described inclined-plane is provided with and described top the are provided with structure that is formed in one is conveniently to process and to gain in strength.Described reinforcement metal layer is a sheet metal, preferably is provided with the sheet metal of a plurality of through holes.Be provided with plucking or teeth groove structure towards the surface of tube wall at this sheet metal, form rough and uneven in surface surface, with the adhesive strength of increase and resin and glass fibre.In order further to increase the sealing that connects between push pipe, be provided with the one or more grooves that are used for sheathed rubber seal on the inclined-plane of described wedge-shaped structure.Described rubber seal can be wedge type rubber seal or ellipse hydro-expansive rubber seal ring.In addition, described wedge-shaped structure also can be provided with the one or more injected holes that are used for the slip casting drag reduction.
From the above, the invention has the advantages that:
1, saves steel collar;
2, the pipe end by wedge shape interconnects between push pipe, and sealability is improved greatly;
3, the reinforcement metal layer and the metal end that are provided with of wedge-shaped structure increased push pipe end intensity greatly.
Below in conjunction with accompanying drawing the present invention is done detailed description further.
Description of drawings
Fig. 1 is one of a glass fiber reinforced steel push pipe with sand embodiment's of the present invention section of structure.
Fig. 2 is glass fiber reinforced steel push pipe with sand embodiment's of the present invention two a section of structure.
Fig. 3 is the present invention has the reinforcement metal layer on the inclined-plane a wedge-shaped structure sectional drawing.
Fig. 4 is that inclined-plane of the present invention is provided with the wedge-shaped structure sectional drawing that reinforcement metal layer and top are provided with metal end.
Fig. 5 is a tool tenon spare metal end schematic representation of the present invention.
Fig. 6 a, 6b are the structural representation of glass fiber reinforced steel push pipe with sand reinforcement metal layer of the present invention.
Fig. 7 is a glass fiber reinforced steel push pipe with sand groove schematic representation of the present invention.
Fig. 8 is a glass fiber reinforced steel push pipe with sand connection diagram of the present invention.
Embodiment
Referring to Fig. 1, be one of glass fiber reinforced steel push pipe with sand embodiment of the present invention section of structure, this glass fiber reinforced steel push pipe with sand comprises tube head 1, pipe shaft 2 and pipe tail 3, pipe shaft 2 is a matrix with the resin, glass fibre is a layers of reinforcement 4, is packing layer 5 with silica sand or calcium carbonate, and tube head 1 and pipe tail 3 are matrix with the resin, with the glass fibre is layers of reinforcement 4, tube head 1 and the pipe tail 3 ends wedge-shaped structure for being fitted and connected mutually.Wherein packing layer 5 can be provided with one or more layers according to project situation, or different thickness is set.Adjacent two push pipes are fitted and connected mutually by the wedge-shaped structure of tube head 1 and pipe tail 3 ends during construction, and having saved existing glass fiber reinforced steel push pipe with sand must not obsolete steel collar.Fig. 2 is glass fiber reinforced steel push pipe with sand embodiment's of the present invention two a section of structure, wherein the tube head of the first glass fiber reinforced steel push pipe with sand A and pipe tail end are the evagination wedge-shaped structure, the tube head of the second glass fiber reinforced steel push pipe with sand B and pipe tail end are the indent wedge-shaped structure, and pipe shaft structure and one of embodiment's glass fiber reinforced steel push pipe with sand is identical.The indent wedge-shaped structure of the evagination wedge-shaped structure of the first glass fiber reinforced steel push pipe with sand A and the second glass fiber reinforced steel push pipe with sand B can fit tightly and be connected.Continuous phase by described evagination wedge-shaped structure and indent wedge-shaped structure during construction connects, and also can save existing glass fiber reinforced steel push pipe with sand must not obsolete steel collar.The external diameter that is dimensioned to push pipe end after push pipe connects of above-mentioned wedge-shaped structure and the external diameter and the internal diameter of internal diameter and pipe shaft are consistent
Because the employing wedge-shaped structure connects, identical even tube head of the present invention and pipe tail size when producing can not guarantee, the slit, joint also obviously reduces than the steel collar connection between push pipe, thereby sealability also strengthens greatly.In the jack-in process, axial force is mainly by the top 8 of push pipe end, back wedge-shaped structure and the surface of contact transmission (referring to Fig. 7 and Fig. 8) of the facade 9 of its front push pipe during construction.
In order further to increase sealing and the wedge-shaped structure intensity between glass fiber reinforced steel push pipe with sand, reinforcement metal layer 6 can be set, as shown in Figure 3 on the inclined-plane of wedge-shaped structure.In order to increase the intensity of surface of contact in the glass fiber reinforced steel push pipe with sand jack-in process simultaneously, can be on the top 8 metal end be set as Fig. 4.This metal end also can be provided with the tenon spare 11 that stretches to tube wall, to strengthen combining of metal end and push pipe end, as shown in Figure 5.Processing for convenience and increase wedge-shaped structure intensity, the metal end that the reinforcement metal layer 6 of wedge-shaped structure inclined-plane setting and top 8 the are provided with structure that is formed in one.In order further to increase the intensity of surface of contact in the glass fiber reinforced steel push pipe with sand jack-in process, can reinforcement metal layer (not shown) also be set at facade 9.The structure of the reinforcement metal layer 6 that the utility model adopts is a sheet metal, preferably is provided with the sheet metal of a plurality of through holes, respectively shown in Fig. 6 a, 6b.In order to increase combining of other composition in metal shielding and the push pipe, on the surface towards tube wall of sheet metal plucking or teeth groove structure can be set, to form scraggly surface.The preferred steel material of metal shielding wherein.
See Fig. 7 and Fig. 8, the sealing when connecting in order further to increase push pipe is provided with the one or more grooves 7 that are used for sheathed rubber seal 10 on the inclined-plane of wedge-shaped structure.Rubber seal 10 can adopt wedge type rubber seal or ellipse hydro-expansive rubber seal ring.When the present invention's two glass fiber reinforced steel push pipe with sand connected, sheathed rubber seal 10 groove 7 in earlier sealed slit between tube head pipe tail by interconnective tube head pipe tail wedge-shaped structure inclined-plane compressing rubber seal 10 then, prevents leaking outside of the interior liquid of push pipe.In order to reduce outer wall in the push pipe jack-in process and the surface friction drag between the soil horizon, can in tube head and/or pipe tail end wedge-shaped structure, be provided with the one or more injected hole (not shown)s that are used for the slip casting drag reduction.
Should be noted that at last: above embodiment is only in order to illustrate that technological scheme of the present invention is not intended to limit; Although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characteristics is equal to replacement the specific embodiment of the present invention; And not breaking away from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technological scheme scope that the present invention asks for protection.
Claims (10)
1, a kind of glass fiber reinforced steel push pipe with sand, comprise tube head, pipe shaft and pipe tail, pipe shaft is matrix with the resin, with the glass fibre is layers of reinforcement, with silica sand or calcium carbonate is packing layer, tube head and pipe tail are matrix with the resin, are layers of reinforcement with the glass fibre, and wherein said tube head and pipe tail end are wedge-shaped structure.
2, glass fiber reinforced steel push pipe with sand according to claim 1, wherein said tube head end is the evagination wedge-shaped structure, described pipe tail end is the indent wedge-shaped structure, can be fitted and connected mutually by evagination wedge-shaped structure and indent wedge-shaped structure between glass fiber reinforced steel push pipe with sand.
3, glass fiber reinforced steel push pipe with sand according to claim 1, wherein said tube head and pipe tail end are evagination wedge-shaped structure or indent wedge-shaped structure, the glass fiber reinforced steel push pipe with sand that tube head and pipe tail end are the evagination wedge-shaped structure and tube head and manage tail end and be between the glass fiber reinforced steel push pipe with sand of indent wedge-shaped structure and can be fitted and connected mutually by described evagination wedge-shaped structure and indent wedge-shaped structure.
4, according to claim 1,2 or 3 described glass fiber reinforced steel push pipe with sand, it is characterized in that: the inclined-plane of described tube head and/or the pipe tail end wedge-shaped structure reinforcement metal layer that has been sticked.
5, glass fiber reinforced steel push pipe with sand according to claim 4 is characterized in that: the top of described tube head and/or pipe tail end wedge-shaped structure also is provided with metal end.
6, glass fiber reinforced steel push pipe with sand according to claim 5 is characterized in that: described metal end is provided with the tenon spare that stretches to tube wall.
7, glass fiber reinforced steel push pipe with sand according to claim 5 is characterized in that: described reinforcement metal layer and the metal end structure that is formed in one.
8, glass fiber reinforced steel push pipe with sand according to claim 4 is characterized in that: described reinforcement metal layer is a sheet metal.
9, glass fiber reinforced steel push pipe with sand according to claim 8 is characterized in that: described sheet metal is the sheet metal that is provided with a plurality of through holes.
10, glass fiber reinforced steel push pipe with sand external member according to claim 8 is characterized in that: described sheet metal has plucking or teeth groove structure towards the surface of tube wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101378333A CN100473884C (en) | 2005-12-31 | 2005-12-31 | Glass fibre reinforced plastic sand inclusion push-pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101378333A CN100473884C (en) | 2005-12-31 | 2005-12-31 | Glass fibre reinforced plastic sand inclusion push-pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1991225A true CN1991225A (en) | 2007-07-04 |
| CN100473884C CN100473884C (en) | 2009-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101378333A Expired - Fee Related CN100473884C (en) | 2005-12-31 | 2005-12-31 | Glass fibre reinforced plastic sand inclusion push-pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100473884C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102466091A (en) * | 2010-11-02 | 2012-05-23 | 周永清 | Centrifugal casting fiber reinforced composite material jacking pipe |
-
2005
- 2005-12-31 CN CNB2005101378333A patent/CN100473884C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102466091A (en) * | 2010-11-02 | 2012-05-23 | 周永清 | Centrifugal casting fiber reinforced composite material jacking pipe |
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| Publication number | Publication date |
|---|---|
| CN100473884C (en) | 2009-04-01 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20090401 Termination date: 20131231 |