CN201166203Y - Concrete mortar external lining prestress steel jacking tube - Google Patents
Concrete mortar external lining prestress steel jacking tube Download PDFInfo
- Publication number
- CN201166203Y CN201166203Y CNU2008200737639U CN200820073763U CN201166203Y CN 201166203 Y CN201166203 Y CN 201166203Y CN U2008200737639 U CNU2008200737639 U CN U2008200737639U CN 200820073763 U CN200820073763 U CN 200820073763U CN 201166203 Y CN201166203 Y CN 201166203Y
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- steel
- steel jacking
- jacking pipe
- wall
- lining
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Abstract
The utility model relates to a cement slurry outer-lining prestressed steel jacking pipe, which is composed of a pipe body and an inside lining layer of the inner wall of the pipe body, wherein a cement slurry protection layer is fixedly arranged on the outer wall of the pipe body coaxially, and a prestressed steel wire is coiled on the outer wall of the pipe body in the protection layer. The cement slurry outer-lining prestressed steel jacking pipe has simple structure, scientific and reasonable design, thinner steel jacking pipe wall, less steel consumption, lower cost and longer service life, and is the cement slurry outer-lining prestressed steel jacking pipe with higher antiseptic property.
Description
Technical field
The utility model relates to steel jacking pipe, especially a kind of cement mortar external lining prestress steel jacking pipe.
Background technique
Steel jacking pipe generally be applied in geographical environment do not allow to slot operation, construction environment require noise less traffic is not exerted an influence or the situation of the easy sedimentation in ground under.The steel jacking pipe that is used for the discharge pressure fluid at present mainly adopts the steel plate of L175-L555 level (tensile strength is 175-555MPa) welding to make, because the yield strength of these common irons is lower, so when making the high steel jacking pipe of compressive strength, the tube wall design of steel jacking pipe is very thick.Pipeline with DN1800 is an example, operating conditions is: working pressure 0.6MPa, thickness of earth-fill cover 2m, the required steel plate thickness of plain carbon steel jacking pipe is at least 14mm, every linear meter(lin.m.) pipe line steel material use quantity is 695Kg, though steel jacking tube wall thickness increases the purpose that can satisfy the discharge pressure fluid, but there are the following problems: 1. steel jacking tube wall thickening, the steel using amount that causes producing every steel jacking pipe strengthens, and the cost of raw material raises; 2. steel jacking tube wall thickening causes steel jacking pipe weight to strengthen, and the difficulty of transportation and construction strengthens; 3. steel jacking at present guarantees that sheath is generally steel pipe coated inner wall corrosion resistant, high-abrasive material, and its antiseptic property is relatively poor, directly causes steel jacking pipe shorter working life, has improved the cost of changing; Steel belong to highly energy-consuming, maximum discharge product in addition, and the increasing of use amount can cause the consumption of a large amount of consumption, the especially non-renewable resources of the energy, and do not meet the environmental protection policy of the energy-saving and emission-reduction that country advocates.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of simple in structure, and design science is reasonable, and tube wall is thinner, and steel using amount is less, and cost is low, long service life and have the cement mortar external lining prestress steel jacking pipe of higher antiseptic property.
The utility model solves its technical problem and is achieved through the following technical solutions:
A kind of cement mortar external lining prestress steel jacking pipe is made of the inside liner of body and inboard wall of tube body, and wherein the coaxial cement mortar protective course that is fixed with on tube wall is wound with reinforcement wire on the tube wall in protective layer.
And the reinforcement wire that twines on the tube wall in the described protective layer is the 1-3 layer.
And described inside liner is polyurethane or glass fibre reinforced plastics.
Advantage of the present utility model and beneficial effect are:
1. this cement mortar external lining prestress steel jacking pipe is at the coaxial cement mortar protective course that is fixed with of this tube wall; be wound with reinforcement wire on the tube wall in cement mortar protective course; under same operating conditions; this steel jacking tube wall is thinner; it is about 2/5 of plain carbon steel jacking tube steel amount; in iron and steel price growing today; saved the cost of raw material greatly; improved economic benefit, and the use amount that reduces highly energy-consuming, maximum discharge product meets the environmental protection policy of the energy-saving and emission-reduction that country advocates.
2. this cement mortar external lining prestress steel jacking pipe pipe outer wall is wound with reinforcement wire, strengthen whole tubing greatly and resisted the ability of external pressure earthing and internal water pressure, under equal external pressure earthing and internal water pressure situation, make the attenuation of steel jacking tube wall, alleviate the weight of whole tubing, reduce prestress steel jacking pipe integral construction cost and difficulty of construction.
This cement mortar external lining prestress steel jacking pipe extend protective layer the body two ends except can connecting with welding, can also coaxially respectively install steel bell and spigot or flange, constructing operation is easy; Because steel jacking tube wall is thinner, the body own wt is lighter, has also improved the ability of opposing uneven settlement to a certain extent.
4. the inner wall protection layer of this cement mortar external lining prestress steel jacking pipe is glass fibre reinforced plastics protective layer or polyurethane protective layer; the outer wall protective layer is a slush; improved the whole antiseptic property of this tubing; prolonged the working life of steel jacking pipe; and can effectively reduce the inner-walls of duct resistance, reduce whole running cost.
5. of the present utility model simple in structure, design science is reasonable, and tube wall is thinner, and steel using amount is less, and cost is low, and long service life is a kind of cement mortar external lining prestress steel jacking pipe with higher antiseptic property.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is that the A-A of Fig. 1 is to the cross section enlarged view;
Fig. 3 is that the B-B of Fig. 1 is to the cross section enlarged view.
Embodiment
The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
A kind of cement mortar external lining prestress steel jacking pipe; its body 2 is the steel body; at the coaxial inside liner 1 that is fixed with of the inwall of body; this inside liner adopts glass fibre reinforced plastics or polyurethane material to make; the coaxial cement mortar protective course 4 that is fixed with on tube wall wherein; be wound with reinforcement wire 3 on the tube wall in protective layer, the reinforcement wire that is twined is the 1-3 layer, and the present embodiment accompanying drawing is depicted as one deck.
In the present embodiment, be the extension part 5 of body at the body two ends of extending protective layer and inside liner, this extension part is used for coaxial steel bell and spigot or the flange of installing to realize the connection between the tubing.
The utility model is compared saving rolled steel dosage 43.2% with plain carbon steel jacking pipe under same operating conditions.Steel jacking pipe with DN1800mm is that example is specifically narrated below:
Operating conditions is: working pressure 0.6MPa, thickness of earth-fill cover 2m;
The required steel plate thickness of plain carbon steel jacking pipe is 14mm at least, and every linear meter(lin.m.) pipe line steel material use quantity is 695Kg;
The steel plate thickness of prestress steel jacking pipe is 6mm at the most, and it is 1570MPa φ 5 steel wires that steel wire adopts tensile strength, is that 10mm is wrapped in steel jacking pipe outer wall with pitch, twines one deck, and rolled steel dosage is: steel plate 297Kg, steel wire 98Kg amounts to 395Kg.
Claims (3)
1. cement mortar external lining prestress steel jacking pipe is made of the inside liner of body and inboard wall of tube body, and it is characterized in that: the coaxial cement mortar protective course that is fixed with on tube wall is wound with reinforcement wire on the tube wall in protective layer.
2. cement mortar external lining prestress steel jacking pipe according to claim 1 is characterized in that: the reinforcement wire that twines on the tube wall in the described protective layer is the 1-3 layer.
3. cement mortar external lining prestress steel jacking pipe according to claim 1, it is characterized in that: described inside liner is polyurethane or glass fibre reinforced plastics.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2008200737639U CN201166203Y (en) | 2008-01-28 | 2008-01-28 | Concrete mortar external lining prestress steel jacking tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2008200737639U CN201166203Y (en) | 2008-01-28 | 2008-01-28 | Concrete mortar external lining prestress steel jacking tube |
Publications (1)
Publication Number | Publication Date |
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CN201166203Y true CN201166203Y (en) | 2008-12-17 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CNU2008200737639U Expired - Fee Related CN201166203Y (en) | 2008-01-28 | 2008-01-28 | Concrete mortar external lining prestress steel jacking tube |
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CN (1) | CN201166203Y (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101973727A (en) * | 2010-07-14 | 2011-02-16 | 新兴铸管股份有限公司 | Cement mortar for inner liner of centrifugal ductile iron pipe |
-
2008
- 2008-01-28 CN CNU2008200737639U patent/CN201166203Y/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101973727A (en) * | 2010-07-14 | 2011-02-16 | 新兴铸管股份有限公司 | Cement mortar for inner liner of centrifugal ductile iron pipe |
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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: 20081217 Termination date: 20120128 |