CN107143692A - A kind of soft soil along the coast Prestressed concrete cylinder pipe pipeline installation construction method - Google Patents
A kind of soft soil along the coast Prestressed concrete cylinder pipe pipeline installation construction method Download PDFInfo
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- CN107143692A CN107143692A CN201710439014.7A CN201710439014A CN107143692A CN 107143692 A CN107143692 A CN 107143692A CN 201710439014 A CN201710439014 A CN 201710439014A CN 107143692 A CN107143692 A CN 107143692A
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- pipeline
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
- F16L1/036—Laying or reclaiming pipes on land, e.g. above the ground in the ground the pipes being composed of sections of short length
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
The invention discloses a kind of soft soil along the coast Prestressed concrete cylinder pipe pipeline installation construction method, it the described method comprises the following steps：Make-up system pipeline is positioned and excavated；PCCP Pipe installings are carried out by the way of excavation section by section and cross construction：Basement process is carried out using CFG；The thick graded sand and stone mattress layers of layering laying 500mm；GSZ, compaction in layers are overlayed in the middle of mattress layer；Pepe standard section is using double cushion rubber closure；Cathodic protection is carried out to pipeline using bar-shaped zinc anode.The present invention can effectively solve uneven settlement of foundation and seawater corrosion problem, economical, environmentally friendly, simple and easy to apply, safe and reliable, be worthy of popularization, and have fine facilitation to the development of Dewatering technology.
Description
Technical field
Pacify the invention belongs to pipeline construction field, more particularly to a kind of soft soil along the coast Prestressed concrete cylinder pipe road
Fill construction method.
Background technology
Prestressed concrete cylinder pipe (abbreviation PCCP) is by four kinds of steel plate, compressor wire, concrete and cement mortar
After the manufacturing process such as basic raw material is being molded by steel cylinder, concreting, prestress application and protective layer injection, composition
A kind of novel composite pipe, has given full play to resistance to compression, the decay resistance of tension, easy sealing and the concrete of steel, with height
Sealing, high intensity and high impervious characteristic.In soft soil along the coast sea water conveying pipelines engineering, traditional Pipe installing side
Method can not effectively solve uneven settlement of foundation and seawater corrosion problem.
The content of the invention
It is an object of the invention to the problem above for overcoming prior art presence, there is provided a kind of soft soil along the coast prestressing force
Steel production route construction method of installation, can effectively solve uneven settlement of foundation and seawater corrosion problem.
To realize above-mentioned technical purpose and the technique effect, the present invention is achieved through the following technical solutions：
A kind of soft soil along the coast Prestressed concrete cylinder pipe pipeline installation construction method, methods described includes following step
Suddenly：
S1：Make-up system pipeline is positioned and excavated；
S2：PCCP Pipe installings are carried out by the way of excavation section by section and cross construction：
Step 201：Basement process is carried out using CFG；
Step 202：The thick graded sand and stone mattress layers of layering laying 500mm；
Step 203：GSZ, compaction in layers are overlayed in the middle of mattress layer；
S3：Pepe standard section is using double cushion rubber closure；
S4：Cathodic protection is carried out to pipeline using bar-shaped zinc anode.
Further, pepe standard section is comprised the following steps using double cushion rubber closure in the step S3：
Step 301：Pipe joint is connected：Sealing rubber ring is arranged on to the previous length of tubing bellmouth of installation
In two pass groove, and uniformly brush nontoxic natural oil；
Step 302：Pipe socket is slowly slid horizontally into previous by pipeline and previous length of tubing to drawing using chain block
In root pipe socket, after Pipe installing is finished, check whether sealing rubber ring is at the groove circle correct position of socket ring, such as
Cushion rubber position is improper, then removes and reinstall；
Step 303：Pipeline center, absolute altitude are checked, qualified rear progress next length of tubing construction, should before installment work starts
Repetition measurement is carried out to the pipeline of installation before this, displacement is such as found, then resets again；
Step 304：Check and ensure the gap between bell and spigot and apart from uniformity, pipe joint is blocked by double cushion rubbers
And the secondary single port water pressure test is carried out to each interface.
Further, checked in the step 304 and ensure that pipe internal clearance is 10-35mm, while ensureing that Pipe installing is permitted
Perhaps deviation is：Misalignment of axe is 30mm, and height variation is 30mm.
Further, carrying out cathodic protection to pipeline using bar-shaped high-purity zinc anode in the step S4 includes following step
Suddenly：
Step 401：Anti-corrosion protection is carried out to pipeline inner steel piece using cathode protection method：PCCP is managed using bar-shaped zinc anode
Internal steel part and steel pipe are protected；
Step 402：Protection location is divided, and electric continuity connection is carried out to the often section PCCP in each protection location, respectively
Electric continuity bridging is no longer carried out between protection location；
Step 403：Anode cable is drawn from PCCP pipes, weld carries out anti-corrosion insulation again.
Further, protection location is divided in the step 402 to comprise the following steps：DN1000 pipeline is with 3 section 18m pipes
Section is divided into a protection location, and DN1200 pipeline is divided into a protection location with 2 section 12m pipeline sections.
Further, the step 403 Anodic cable is connected using crimping mode with bar-shaped zinc anode cable and uses heat
Colloidal sol band and thermal shrinkable sleeve anti-corrosion.
The beneficial effects of the invention are as follows：
1st, compared with steel pipe or common prestressed reinforced concrete pipe road, speed of application is fast, cost bottom, service life are long；
2nd, it is suitable with common prestressed reinforced concrete pipe road price, lower than steel pipe price by 30%, pre-stress steel cylinder coagulation
Native pipeline has tension, impervious and concrete resistance to compression, the advantage of corrosion resistance of steel concurrently, can bear higher internal pressure and outer lotus
Carry；
3rd, Prestressed concrete cylinder pipe road uses finished product standard knot, bell socket, two pass seal with elastometic washer, in chain calabash
A section socket ring is slipped under the traction of reed, compared with steel pipe, PCCP pipes counterpart is simple, be not required to welding, interface is easy；
4th, effective protection due to Prestressed concrete cylinder pipe road inside and outside wall concrete to internal steel part, PCCP pipelines are cloudy
The bar-shaped zinc anode of pole protection reduces 1/3 than steel pipeline, but its service life is really longer than steel pipe more than 10 years；
5th, equipment purchase is convenient, peace tears that simple, efficiency high, cost are low open, and pipeline is using PCCP pipes, with high leakproofness, height
Intensity and high impervious characteristic.
6th, the present invention is economical, environmentally friendly, simple and easy to apply, safe and reliable, is worthy of popularization, and has to the development of Dewatering technology
Fine facilitation.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the schematic flow sheet of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is all other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
A kind of soft soil along the coast Prestressed concrete cylinder pipe pipeline installation construction method as shown in Figure 1, methods described
Comprise the following steps：
S1：Make-up system pipeline is positioned and excavated；
S2：PCCP Pipe installings are carried out by the way of excavation section by section and cross construction：
Step 201：Basement process is carried out using CFG；
Step 202：The thick graded sand and stone mattress layers of layering laying 500mm；
Step 203：GSZ is overlayed in the middle of mattress layer, compaction in layers effectively controls pipeline soft soil foundation uneven
Even sedimentation；
S3：Pepe standard section effectively increases joint sealing quality using double cushion rubber closure, it is ensured that the tight nothing of interface is oozed
Water：
Step 301：Pipe joint is connected：Sealing rubber ring is arranged on to the previous length of tubing bellmouth of installation
In two pass groove, and uniformly brush nontoxic natural oil；
Step 302：Using 5t chain blocks by pipeline and previous length of tubing to drawing, before pipe socket is slowly slid horizontally into
In a piece pipe socket, after Pipe installing is finished, check whether sealing rubber ring is at the groove circle correct position of socket ring,
Such as cushion rubber position is improper, then removes and reinstall；
Step 303：Pipeline center, absolute altitude are checked, qualified rear progress next length of tubing construction, should before installment work starts
Repetition measurement is carried out to the pipeline of installation before this, displacement is such as found, then resets again；
Step 304：Check and ensure the gap between bell and spigot and apart from uniformity, pipe internal clearance is generally 15mm, but
10mm is cannot be less than, 35mm is cannot be greater than, while ensureing that Pipe installing tolerance is：Misalignment of axe is 30mm, height variation
For 30mm, pipe joint is blocked by double cushion rubbers and carries out the secondary single port water pressure test to each interface.
S4：Cathodic protection is carried out to pipeline using bar-shaped zinc anode, deformed bar and steel pipe fittings in pipeline are slow down
Corrosion failure, add pipeline durability：
Step 401：Anti-corrosion protection is carried out to pipeline inner steel piece using cathode protection method：PCCP is managed using bar-shaped zinc anode
Internal steel part and steel pipe are protected；
Step 402：Protection location is divided, DN1000 pipeline is divided into a protection location with 3 section 18m pipeline sections,
DN1200 pipeline is divided into a protection location with 2 section 12m pipeline sections, and carries out electricity to the often section PCCP in each protection location
Continuity is connected, and electric continuity bridging is no longer carried out between each protection location；
Step 403：Anode cable is drawn from PCCP pipes, weld carries out anti-corrosion insulation again, anode cable and bar-shaped zinc
Anode cable is connected using crimping mode and uses thermosol tape and thermal shrinkable sleeve anti-corrosion.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.
Claims (6)
1. a kind of soft soil along the coast Prestressed concrete cylinder pipe pipeline installation construction method, it is characterised in that：Methods described bag
Include following steps：
S1：Make-up system pipeline is positioned and excavated；
S2：PCCP Pipe installings are carried out by the way of excavation section by section and cross construction：
Step 201：Basement process is carried out using CFG；
Step 202：The thick graded sand and stone mattress layers of layering laying 500mm；
Step 203：GSZ, compaction in layers are overlayed in the middle of mattress layer；
S3：Pepe standard section is using double cushion rubber closure；
S4：Cathodic protection is carried out to pipeline using bar-shaped zinc anode.
2. a kind of soft soil along the coast Prestressed concrete cylinder pipe pipeline installation construction method according to claim 1, its
It is characterised by：Pepe standard section is comprised the following steps using double cushion rubber closure in the step S3：
Step 301：Pipe joint is connected：Sealing rubber ring is arranged on to the two pass of the previous length of tubing bellmouth of installation
In groove, and uniformly brush nontoxic natural oil；
Step 302：Pipe socket is slowly slid horizontally into previous pipe by pipeline and previous length of tubing to drawing using chain block
In road bellmouth, after Pipe installing is finished, check whether sealing rubber ring is at the groove circle correct position of socket ring, such as cushion rubber
Position is improper, then removes and reinstall；
Step 303：Pipeline center, absolute altitude are checked, qualified rear progress next length of tubing construction before installment work starts, tackles this
The pipeline of preceding installation carries out repetition measurement, such as finds displacement, then resets again；
Step 304：Check and ensure the gap between bell and spigot and apart from uniformity, pipe joint is blocked and right by double cushion rubbers
Each interface carries out the secondary single port water pressure test.
3. a kind of soft soil along the coast Prestressed concrete cylinder pipe pipeline installation construction method according to claim 2, its
It is characterised by：Checked in the step 304 and ensure that pipe internal clearance is 10-35mm, while ensureing that Pipe installing tolerance is：
Misalignment of axe is 30mm, and height variation is 30mm.
4. a kind of soft soil along the coast Prestressed concrete cylinder pipe pipeline installation construction method according to claim 1, its
It is characterised by：Cathodic protection is carried out in the step S4 to pipeline using bar-shaped high-purity zinc anode to comprise the following steps：
Step 401：Anti-corrosion protection is carried out to pipeline inner steel piece using cathode protection method：Using bar-shaped zinc anode to PCCP pipes inside
Steel part and steel pipe are protected；
Step 402：Protection location is divided, and electric continuity connection, each protection are carried out to the often section PCCP in each protection location
Electric continuity bridging is no longer carried out between unit；
Step 403：Anode cable is drawn from PCCP pipes, weld carries out anti-corrosion insulation again.
5. a kind of soft soil along the coast Prestressed concrete cylinder pipe pipeline installation construction method according to claim 4, its
It is characterised by：Protection location is divided in the step 402 to comprise the following steps：DN1000 pipeline is divided into 3 section 18m pipeline sections
One protection location, DN1200 pipeline is divided into a protection location with 2 section 12m pipeline sections.
6. a kind of soft soil along the coast Prestressed concrete cylinder pipe pipeline installation construction method according to claim 4, its
It is characterised by：The step 403 Anodic cable be connected with bar-shaped zinc anode cable using crimping mode and use thermosol tape and
Thermal shrinkable sleeve anti-corrosion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710439014.7A CN107143692A (en) | 2017-06-12 | 2017-06-12 | A kind of soft soil along the coast Prestressed concrete cylinder pipe pipeline installation construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710439014.7A CN107143692A (en) | 2017-06-12 | 2017-06-12 | A kind of soft soil along the coast Prestressed concrete cylinder pipe pipeline installation construction method |
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| Publication Number | Publication Date |
|---|---|
| CN107143692A true CN107143692A (en) | 2017-09-08 |
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|---|---|---|---|
| CN201710439014.7A Pending CN107143692A (en) | 2017-06-12 | 2017-06-12 | A kind of soft soil along the coast Prestressed concrete cylinder pipe pipeline installation construction method |
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Citations (6)
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|---|---|---|---|---|
| JP2011043116A (en) * | 2009-08-21 | 2011-03-03 | Toyota Motor Corp | Radial sound reducing structure |
| CN101994878A (en) * | 2010-10-25 | 2011-03-30 | 天津市泽宝水泥制品有限公司 | Double-rubber gasket prestressed concrete cylinder pipe |
| CN102155009A (en) * | 2011-05-23 | 2011-08-17 | 中铁二院工程集团有限责任公司 | Crushed rock pile used for strengthening extremely soft soil foundation and construction method thereof |
| CN202629361U (en) * | 2012-06-28 | 2012-12-26 | 邢士波 | Embedded type prestress steel cylinder concrete pipe with built-in zinc bar sacrificial anode |
| CN103590390A (en) * | 2013-11-26 | 2014-02-19 | 郑州中核岩土工程有限公司 | Plastic flow soft foundation reinforced structure and reinforcing method thereof |
| CN204645075U (en) * | 2015-05-07 | 2015-09-16 | 沈阳建筑大学 | A kind of urban road soft foundation underground pipeline bracing means |
-
2017
- 2017-06-12 CN CN201710439014.7A patent/CN107143692A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011043116A (en) * | 2009-08-21 | 2011-03-03 | Toyota Motor Corp | Radial sound reducing structure |
| CN101994878A (en) * | 2010-10-25 | 2011-03-30 | 天津市泽宝水泥制品有限公司 | Double-rubber gasket prestressed concrete cylinder pipe |
| CN102155009A (en) * | 2011-05-23 | 2011-08-17 | 中铁二院工程集团有限责任公司 | Crushed rock pile used for strengthening extremely soft soil foundation and construction method thereof |
| CN202629361U (en) * | 2012-06-28 | 2012-12-26 | 邢士波 | Embedded type prestress steel cylinder concrete pipe with built-in zinc bar sacrificial anode |
| CN103590390A (en) * | 2013-11-26 | 2014-02-19 | 郑州中核岩土工程有限公司 | Plastic flow soft foundation reinforced structure and reinforcing method thereof |
| CN204645075U (en) * | 2015-05-07 | 2015-09-16 | 沈阳建筑大学 | A kind of urban road soft foundation underground pipeline bracing means |
Non-Patent Citations (2)
| Title |
|---|
| 张迪士等: "《大口径PCCP管在软土地基中的应用》", 《中国给水排水》 * |
| 雷宇蓉等: "《预应力钢筒混凝土管道的施工安装与质量控制》", 《西部探矿工程》 * |
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Application publication date: 20170908 |