CN100545362C - City underground integral drainpipe construction method - Google Patents
City underground integral drainpipe construction method Download PDFInfo
- Publication number
- CN100545362C CN100545362C CNB2007101127705A CN200710112770A CN100545362C CN 100545362 C CN100545362 C CN 100545362C CN B2007101127705 A CNB2007101127705 A CN B2007101127705A CN 200710112770 A CN200710112770 A CN 200710112770A CN 100545362 C CN100545362 C CN 100545362C
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- Prior art keywords
- helix tube
- steel core
- diameter
- plastic strip
- rope
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Abstract
A kind of city underground integral drainpipe construction method, by being skeleton with helical form steel core plastic strip, and in conjunction with control distance rope, polypropylene woven cloth and steel mesh, the method of cement injection mortar between woven cloth and steel mesh again, can walk around various obstacles easily, and eliminated the weak link in the pipeline, also can reduce construction investment.
Description
The application is that application number is 2005100224639, and the applying date is on December 30th, 2005, and name is called dividing an application of " city underground integral drainpipe ".
One, technical field
The present invention relates to the underdrainage system in the city municipal engineering of a kind of monolithic, particularly relate to the construction method of a kind of monolithic city subsoil drain
Two, background technology
Present known city subsoil drain all be with the finished cement pipe a section couple together.The defective of this interconnection system pipe of cement is that the junction becomes the weak spot in the pipeline.In pipeline construction, usually can be stopped in addition by crisscross other pipe network or obstruction, and hard, straight pipe of cement will to cross these obstacles be very difficult, normally with other pipe network distortion or change its course, this is the something that makes the constructor have a headache most.
Three, summary of the invention
The purpose of this invention is to provide a kind of city underground integral drainpipe construction method, to solve the difficult problem in the underdrainage pipe network construction of present city.
The object of the present invention is achieved like this: after finishing underground excavation of earthwork engineering, all are related to the drainage inlet point of this pipeline, with same pipe network be connected a little and this pipeline in the height of all obstructions clear up, arrange, all raised points all are lower than under the situation of each water inlet in guaranteeing pipeline, the total trend of gutter must have a gradual transition from high to low, the skeleton of gutter is by helical form steel core plastic strip, control is apart from rope, polypropylene woven cloth and gauze wire cloth constitute, wherein steel core plastic strip outer layer plastic is selected engineering plastics for use, its thickness is 1/4 of steel core diameter, steel core then is made of wire rope, steel core plastic strip forming method is undertaken by known moulding process with plastic extruder, the diameter of steel core plastic strip and helix tube diameter ratio are 1: 50, evenly distribute with three respectively between every adjacent two rings of helix tube, diameter is that the plastic ties of steel core plastic strip diameter 1/3 connects, the ring spacing of adjacent two rings of helix tube equals 1/6～1/7 of helix tube external diameter, polypropylene woven cloth then is sewn into tubulose according to the diameter of helix tube makes it can be enclosed within on the helix tube, the woven cloth of compressing steel core plastic strip both sides, make it in helix tube medial surface applying and stitched together with nylon rope, to being in control apart from the woven cloth of rope with steel core plastic strip junction, then woven cloth is severed openning along control one apart from rope, abdicating control sews up openning behind rope again, then helix tube is placed on the good pipeline of exploration, when meeting with obstruction, then with the helix tube projection, recessed or around, must be on the line before putting with the concrete cambered surface passage that to repair an arc length in advance be helix tube girth 1/3, on the helix tube of putting, cover steel mesh, the eyelet of steel mesh is the square of length of side 2cm, the steel wire diameter that constitutes steel mesh is 2mm, cement injection mortar between woven cloth and steel mesh, the minimum thickness of cement mortar is 6～12cm, when gutter internal diameter during greater than 0.8m, must adopt double-deck steel mesh, the spacing of two-layer steel mesh is 5cm, the thickness of cement mortar is got 12cm simultaneously, bifurcation at pipeline then adopts the finished product tee piece to be connected with it, and bridging mode adopts the tee piece mouthpiece cover is connected in the steel core plastic spiral coil.
Adopt such scheme can receive following remarkable result:
1, because the gutter of this programme can be adjustable to circumstances easily, wriggle and prolong fluctuating, solved the obstruction problem in the underdrainage pipe construction of city at one stroke.
2, because the channel skeleton of this programme adopts the helix tube of steel core plastic strip formation and controls apart from rope, and polypropylene woven cloth combines with the ingenious of gauze wire cloth, can make skeleton bending freely, the execution conditions of most convenient are provided for the perfusion of cement mortar again.
3, the technology that the woven cloth of employing compressing steel core plastic strip both sides makes it wrap tightly the steel core plastic strip and fit and be sewed together at the helix tube medial surface in the scheme, make the helix tube that originally is in the skeleton innermost layer quietly stealthy in pipeline shell after finishing the pouring of cement mortar dexterously, this will improve the pipeline shell internal pressure strength greatly.
4, the steel core in the steel core plastic strip adopts wire rope; can greatly improve its tensile strength; can give its flexibility again; the important hidden dangers in project that causes because of the recessive crackle on the whole steel core of eliminating; simultaneously because the hidden danger that the inner wire rope gets rusty has been eliminated in the shielding and the protective effect of the plastic casing of its periphery.
5, the helix tube that is curved by the steel core plastic strip has best switching performance, only needs during connection to tie up with two sections overlapping several rings of helix tube and with nylon rope, not only can not allow the junction become weak link, also can make the intensity of junction higher on the contrary.
6, because control has limited the maximum loop spacing of helix tube apart from restricting, this just guarantees that weak link does not appear in helix tube in work progress.
7, the present invention compares with the finished cement pipe of equal flow, can reduce investment more than 30%.
Four, description of drawings
Accompanying drawing is the longitudinal sectional drawing of city underground integral drainpipe.
1. steel core plastic strips among the figure, 2. control is apart from rope, 3. polypropylene woven cloth, 4. concrete, 5. gauze wire cloth.
Five, the specific embodiment
After finishing underground excavation of earthwork engineering, all are related to the entrance of this pipeline draining, with same pipe network be connected a little and this pipeline in the height of all obstructions clear up, arrange, guaranteeing that all raised points all are lower than under the situation of each water inlet, the total trend of gutter must have a gradual transition from high to low, the skeleton of gutter is by helical form steel core plastic strip, control is apart from rope, polypropylene woven cloth and gauze wire cloth constitute, wherein steel core plastic strip outer layer plastic is selected vinyon for use, its thickness is 1/4 of steel core diameter, steel core then is made of wire rope, and steel core plastic strip forming method is undertaken by known moulding process with plastic extruder.The diameter of steel core plastic strip and helix tube diameter ratio are 1: 50, evenly distribute with three respectively between every adjacent two rings of helix tube, diameter is that the plastic ties of steel core plastic strip diameter 1/3 connects, with control maximum loop spacing, this maximum loop spacing equals 1/7 of helix tube external diameter, polypropylene woven cloth then is sewn into tubulose according to the diameter of helix tube makes it can be enclosed within on the helix tube, the woven cloth of compressing steel core plastic strip both sides, make it wrap tightly the steel core plastic strip and fit and stitched together with nylon rope at the helix tube medial surface, to being in control apart from the woven cloth of rope with steel core plastic strip junction, then woven cloth is severed openning along control one apart from rope, abdicating control sews up openning behind rope again, then helix tube is placed on the good pipeline of exploration, when meeting with obstruction, then with the helix tube projection, recessed or around, must be on the line before putting with the concrete cambered surface passage that to repair an arc length in advance be helix tube girth 1/3.Cover steel mesh on the helix tube of putting, the eyelet of steel mesh is the square of length of side 2cm, and the steel wire diameter that constitutes steel mesh is 2mm, and cement injection mortar between woven cloth and steel mesh, the minimum thickness of cement mortar are 12cm.When gutter internal diameter during greater than 0.8m, must adopt double-deck steel mesh, the spacing of two-layer steel mesh is 5cm.Simultaneously the thickness of cement mortar is got 12cm, then adopts the finished product tee piece to be connected with it at the bifurcation of pipeline, and bridging mode adopts the tee piece mouthpiece cover is connected in the steel core plastic spiral coil.
Claims (1)
1, a kind of city underground integral drainpipe construction method, it is characterized in that: after finishing underground excavation of earthwork engineering, all are related to the drainage inlet point of this pipeline, with same pipe network be connected a little and this pipeline in the height of all obstructions clear up, arrange, all raised points all are lower than under the situation of each water inlet in guaranteeing pipeline, the total trend of gutter must have a gradual transition from high to low, the skeleton of gutter is by helical form steel core plastic strip, control is apart from rope, polypropylene woven cloth and gauze wire cloth constitute, wherein steel core plastic strip outer layer plastic is selected engineering plastics for use, its thickness is got 1/4 of steel core diameter, steel core then is made of wire rope, steel core plastic strip forming method is undertaken by known moulding process with plastic extruder, the diameter of steel core plastic strip was got 1: 50 with the helix tube diameter ratio that adopts the steel core plastic strip to constitute, evenly distribute with three respectively between every adjacent two rings of helix tube, diameter is that the conduct control of steel core plastic strip diameter 1/3 connects apart from the plastic ties that rope uses, the ring spacing of adjacent two rings of helix tube equals 1/6～1/7 of helix tube external diameter, polypropylene woven cloth then is sewn into tubulose according to the diameter of helix tube makes it can be enclosed within on the helix tube, the woven cloth of compressing steel core plastic strip both sides, make it in helix tube medial surface applying and stitched together with nylon rope, to being in control apart from the woven cloth of rope with steel core plastic strip junction, then woven cloth is severed openning along control one apart from rope, abdicating control sews up openning behind rope again, then helix tube is placed on the good pipeline of exploration, when meeting with obstruction, then with the helix tube projection, recessed or around, must be on the line before putting with the concrete cambered surface passage that to repair an arc length in advance be helix tube girth 1/3, on the helix tube of putting, cover steel mesh, the eyelet of steel mesh is the square of length of side 2cm, the steel wire diameter that constitutes steel mesh is 2mm, cement injection mortar between woven cloth and steel mesh, the minimum thickness of cement mortar is 12cm, when gutter internal diameter during greater than 0.8m, then adopt double-deck steel mesh, the spacing of two-layer steel mesh is got 5cm, the thickness of cement mortar is got 12cm simultaneously, bifurcation at pipeline then adopts the finished product tee piece to be connected with it, and bridging mode adopts the tee piece mouthpiece cover is connected in the steel core plastic spiral coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101127705A CN100545362C (en) | 2005-12-30 | 2005-12-30 | City underground integral drainpipe construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101127705A CN100545362C (en) | 2005-12-30 | 2005-12-30 | City underground integral drainpipe construction method |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100224639A Division CN100381650C (en) | 2005-12-30 | 2005-12-30 | Urban underground integral drainpipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101082235A CN101082235A (en) | 2007-12-05 |
| CN100545362C true CN100545362C (en) | 2009-09-30 |
Family
ID=38911987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101127705A Expired - Fee Related CN100545362C (en) | 2005-12-30 | 2005-12-30 | City underground integral drainpipe construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100545362C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806092A (en) * | 2010-03-10 | 2010-08-18 | 沈阳市政集团有限公司 | Pipe jacking construction method capable of reducing friction resistance |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295814B (en) * | 2014-10-14 | 2015-11-18 | 南京联众建设工程技术有限公司 | Underground steel and concrete structure pipeline of a kind of inner wall belt spiral compound stiffening ring and preparation method thereof |
-
2005
- 2005-12-30 CN CNB2007101127705A patent/CN100545362C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806092A (en) * | 2010-03-10 | 2010-08-18 | 沈阳市政集团有限公司 | Pipe jacking construction method capable of reducing friction resistance |
| CN101806092B (en) * | 2010-03-10 | 2012-04-25 | 沈阳市政集团有限公司 | Pipe jacking construction method capable of reducing friction resistance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101082235A (en) | 2007-12-05 |
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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 | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090930 Termination date: 20100201 |