CN110285266A - A kind of pipeline fills out culvert method - Google Patents
A kind of pipeline fills out culvert method Download PDFInfo
- Publication number
- CN110285266A CN110285266A CN201910431874.5A CN201910431874A CN110285266A CN 110285266 A CN110285266 A CN 110285266A CN 201910431874 A CN201910431874 A CN 201910431874A CN 110285266 A CN110285266 A CN 110285266A
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- China
- Prior art keywords
- circumferential weld
- water
- expandable waterstop
- asbestos
- asbestos cement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
- F16L5/02—Sealing
Abstract
It is filled out the invention belongs to pipeline and contains waterproof, seepage control technical field, culvert method is filled out more particularly to a kind of pipeline, including pipe end cleaning, installation water expandable waterstop, fill out the process for breaking asbestos cement, polysulfide sealant closure, wherein, it fills out dozen water expandable waterstop to the middle position of service sleeve and formal pipeline enclosure circumferential weld, service sleeve and formal pipeline enclosure and fills out the total length for beating the water expandable waterstop of installation not less than 60mm；The asbestos cement filler is clogged in the circumferential weld of water expandable waterstop two sides, after upstream face and back side filling asbestos cement filler, the circumferential weld of reserved certain length carries out blocking and being soaked after acceptance(check) or started backfilling working using polysulfide sealant for filling polysulfide sealant.The method of the invention can be used in each structures service sleeve and culvert work is filled out in formal pipeline enclosure gap, improve waterproof and antiseepage quality.
Description
Technical field
It is filled out the invention belongs to pipeline and contains waterproof, seepage control technical field, and in particular to a kind of pipeline fills out culvert method, is used for each structure
It builds object service sleeve and culvert work is filled out in formal pipeline enclosure gap, improve waterproof and antiseepage quality.
Background technique
It is always a weak spot in industry that pipeline, which fills out culvert waterproof and antiseepage, makes a general survey of all pipeline construction Regulations,
To this there is no stringent, unified requirement, a variety of forms of construction work and deposit and bring the vicious circle of " ten stifled nine leakages ".
In the prior art, domestic Outer Tube is filled out culvert and is generally filled using coal tar hemp packing, and upstream face is full using steel sealing plate
Sealing closes, sealing plate corrosion-vulnerable, and pipe vibration can damage steel sealing plate weld cracking in addition, causes to leak；And it endures
Pitch spunyarn environmental pollution processed is larger.
Summary of the invention
In view of the above technical problems, the present invention provides a kind of pipeline and fills out culvert method, including pipe end cleaning, installation water-swellable
Sealing rod fills out the process for breaking asbestos cement, polysulfide sealant closure；The method can be used in each structures service sleeve with just
Culvert work is filled out in formula pipeline enclosure gap, improves waterproof and antiseepage quality.
The present invention is achieved by the following technical solutions:
A kind of pipeline fills out culvert method, which comprises
Pipe end cleaning: eliminating impurities in the circumferential weld of service sleeve and formal pipeline enclosure are clean；
Installation water expandable waterstop: it fills out and beats water expandable waterstop to the centre of service sleeve and formal pipeline enclosure circumferential weld
Position, service sleeve and formal pipeline enclosure fill out the total length for beating the water expandable waterstop of installation not less than 60mm；
Fill out beat asbestos cement: by water, asbestos, cement mixing it is uniform after, obtain asbestos cement filler, in water-swellable sealing
The asbestos cement filler is clogged in the circumferential weld of two sides, after upstream face and back side filling asbestos cement filler, is reserved
The circumferential weld of certain length is used for subsequent filling polysulfide sealant；
Polysulfide sealant blocks: it fills out after breaking asbestos cement, it is close using polysulfide in the reserved circumferential weld of upstream face and back side
Sealing is blocked, and can be soaked after acceptance(check) or start backfilling working.
Further, the step of installation water expandable waterstop specifically includes:
According to the circumferential weld width of service sleeve and formal pipeline enclosure with determine water expandable waterstop vertical direction it is folded
Add the number of plies；The overall thickness of water expandable waterstop should be greater than circumferential weld width after superposition；
Each layer water expandable waterstop is firm using construction line binding, it is wrapped in the outer wall of formal pipeline, water-swellable
The circumferential overlap joint of the joint of sealing rod is 60-100mm, and binds firm joint using construction line, keeps tight；
The interposition for beating water expandable waterstop to service sleeve and formal pipeline enclosure circumferential weld is first filled out using the lumps of wood and hand hammer
It sets, then is filled out simultaneously from circumferential weld two sides and beat water expandable waterstop, adjacent water expandable waterstop is bonded packed uniform tight, and
The total length of water expandable waterstop is not less than 60mm, cuts construction line, next process is entered after acceptance(check)；
Further, dozen asbestos cement of filling out specifically includes: in mass ratio, by water, asbestos, cement according to 1:(2-3):
The ratio of (5-8) is mixed and stirred for uniformly adding the water of three's mixture gross mass 10%-12%, is uniformly mixed, mixture
It can be pinched with hand agglomerating without loose, throw away dampness i.e. scattered on the ground, obtain asbestos cement filler；Wherein, wet asbestos water
The time of mud storage, not plus the resting period of the dry asbestos cement of water can not be more than 2 weeks no more than 1h；
It will be in the asbestos cement filler layered tamping to the circumferential weld for having installed water expandable waterstop that prepared；
By asbestos cement filler fill out beat it is closely knit after, in time maintenance heat preservation, formal pipeline must not be by external collision or torsion；Its
Middle maintenance heat preservation can be carried out by the way of blanket plug reality circumferential weld；
It carries out an acceptance inspection after stone asbestos cement filler final set, next process is carried out after acceptance(check)；
Further, the asbestos cement filler layered tamping that will be prepared is to having installed water expandable waterstop
In circumferential weld, specifically:
The asbestos cement filler is clogged in the circumferential weld of water expandable waterstop two sides, filling layered is filled, often
Thickness degree is no more than 10mm, and every layer is beaten in fact with the lumps of wood and hand hammer；In upstream face, after filling asbestos cement filler, reserve at least
The circumferential weld of 50mm length is used for subsequent filling polysulfide sealant, in back side, after filling asbestos cement filler, reserves at least
The circumferential weld of 30mm length is used for subsequent filling polysulfide sealant.
Further, dozen asbestos cement of filling out specifically includes: the asbestos use asbestos wool, and the cement uses 32.5
Ordinary portland cement；Wherein, in mass ratio, water: asbestos: the mixed proportion of cement is 1:3:7.
Further, the polysulfide sealant blocks, specifically:
Two-component polysulfide sealant product is selected, component A is barreled white paste, and B component is bottling liquid curing agent；It applies
Working hour all squeezes into B component liquid in component A bucket, is stirred until homogeneous up and down rapidly, being then filled in circumferential weld (can be used
Putty knife filling), extra glue is removed after filling and leading up；It is firmly scratched in one direction when blade coating, prevents a large amount of bubbles to be mixed into close
In sealing；Upstream face seal thickness is not less than 50mm, and back side seal thickness is not less than 30mm；
Apply checking and accepting after 24 hours, can soak after acceptance(check) or start backfilling working.
Advantageous effects of the invention:
(1) a kind of pipeline provided by the invention fills out culvert method, really can satisfy waterproof and antiseepage design requirement, Neng Goucong
It fundamentally solves pipeline and fills out the generation for containing repeatedly leakage phenomenon.
(2) a kind of pipeline provided by the invention fills out culvert method, abandons the high contaminated materials such as pitch, protects environment, saves
The energy；Processing quality is high, saves the plugging material reprocessed repeatedly.Compared with conventional construction method, it can be effectively controlled because of section
Loss is reprocessed caused by point leakage, while the offer of project entirety impression quality is effectively ensured.
(3) a kind of pipeline provided by the invention fills out culvert method, and process advantages of simple is not necessarily to weld job, and it is difficult to reduce construction
Degree；And entirely fill out and contain structure for flexible expandable structure, meet pipe vibration requirement.
Detailed description of the invention
Fig. 1 fills out culvert method flow diagram for pipeline a kind of in the embodiment of the present invention；
Fig. 2 fills out culvert method schematic diagram for pipeline a kind of in the embodiment of the present invention；
Appended drawing reference: 1. water expandable waterstops；2. asbestos cement filler；3. polysulfide sealant；4. formal pipeline；5. pre-
Bushing burying；6. the wall of each structures.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is explained in further detail.It should be appreciated that specific embodiment described herein is used only for explaining the present invention, and
It is not used in the restriction present invention.
On the contrary, the present invention covers any substitution done on the essence and scope of the present invention being defined by the claims, repairs
Change, equivalent method and scheme.Further, in order to make the public have a better understanding the present invention, below to of the invention thin
It is detailed to describe some specific detail sections in section description.Part without these details for a person skilled in the art
The present invention can also be understood completely in description.
For in the prior art, domestic Outer Tube is filled out culvert and is generally filled using coal tar hemp packing, and upstream face is sealed using steel
Plate is fully welded closing, and sealing plate corrosion-vulnerable, pipe vibration can damage steel sealing plate weld cracking in addition, causes to leak；And
And the tanning technical problems such as pitch spunyarn environmental pollution is larger.As shown in Figs. 1-2, the embodiment of the present invention provides a kind of pipeline and fills out
Culvert method, which comprises
Pipe end cleaning: eliminating impurities in the circumferential weld of service sleeve and formal pipeline enclosure are clean；Wherein, it is avoided when removing
Scratch anti-decaying paint；
Installation water expandable waterstop: it fills out and beats water expandable waterstop 1 to circumferential weld between service sleeve 5 and formal pipeline 4
Middle position, service sleeve and formal pipeline enclosure fill out the total length for beating the water expandable waterstop of installation not less than 60mm；
Fill out beat asbestos cement: by water, asbestos, cement mixing it is uniform after, obtain asbestos cement filler, in water-swellable sealing
The asbestos cement filler 2 is clogged in the circumferential weld of two sides, after upstream face and back side filling asbestos cement filler, is reserved
The circumferential weld of certain length is used for subsequent filling polysulfide sealant；
Polysulfide sealant blocks: it fills out after breaking asbestos cement, it is close using polysulfide in the reserved circumferential weld of upstream face and back side
Sealing 3 is blocked, and can be soaked after acceptance(check) or start backfilling working.
In the present embodiment, the step of installation water expandable waterstop specifically includes:
According to the circumferential weld width of service sleeve and formal pipeline enclosure with determine water expandable waterstop vertical direction it is folded
Add the number of plies；The overall thickness of water expandable waterstop should be greater than circumferential weld width after superposition；
Each layer water expandable waterstop is firm using construction line binding, it is wrapped in the outer wall of formal pipeline, water-swellable
The circumferential overlap joint of the joint of sealing rod is 60-100mm, and binds firm joint using construction line, keeps tight；
The interposition for beating water expandable waterstop to service sleeve and formal pipeline enclosure circumferential weld is first filled out using the lumps of wood and hand hammer
It sets, then is filled out simultaneously from circumferential weld two sides and beat water expandable waterstop, adjacent water expandable waterstop is bonded packed uniform tight, and
The total length of water expandable waterstop is not less than 60mm, cuts construction line, next process is entered after acceptance(check)；Preferably,
The water-swelling rubber water bar that the water expandable waterstop can select Hebei Ji Long product of rubber and plastic Co., Ltd to produce is (greasy
Subtype) product, which meets GB/T 18173.3-2014 standard criterion.
In the present embodiment, dozen asbestos cement of filling out specifically includes: in mass ratio, by water, asbestos, cement according to 1:
(2-3): the ratio of (5-8) is mixed and stirred for uniformly adding the water of three's mixture gross mass 10%-12%, is uniformly mixed,
Mixture can be pinched agglomerating without loose with hand, throw away dampness i.e. scattered on the ground, obtain asbestos cement filler；Wherein, wet
The time of asbestos cement storage, not plus the resting period of the dry asbestos cement of water can not be more than 2 weeks no more than 1h；
By in the asbestos cement filler layered tamping to the circumferential weld for having installed water expandable waterstop prepared, water is being met
The asbestos cement filler, filling layered filling are clogged in the circumferential weld of expansion sealing strip two sides, every thickness degree is no more than
10mm, every layer is beaten in fact with the lumps of wood and hand hammer；In upstream face, after filling asbestos cement filler, the ring of at least 50mm length is reserved
Seam is used for subsequent filling polysulfide sealant, in back side, after filling asbestos cement filler, reserves the circumferential weld of at least 30mm length,
For subsequent filling polysulfide sealant.
By asbestos cement filler fill out beat it is closely knit after, in time maintenance heat preservation, formal pipeline must not be by external collision or torsion；Its
Middle maintenance heat preservation can be carried out by the way of blanket plug reality circumferential weld；
It carries out an acceptance inspection after stone asbestos cement filler final set, next process is carried out after acceptance(check)；
In the present embodiment, dozen asbestos cement of filling out specifically includes: the asbestos use asbestos wool, and the cement uses
32.5 ordinary portland cements；Wherein, in mass ratio, water: asbestos: the mixed proportion of cement is 1:3:7.
In the present embodiment, the polysulfide sealant blocks, specifically:
Two-component polysulfide sealant product is selected, component A is barreled white paste, and B component is bottling liquid curing agent；It applies
Working hour all squeezes into B component liquid in component A bucket, is stirred until homogeneous up and down rapidly, being then filled in circumferential weld (can be used
Putty knife filling), extra glue is removed after filling and leading up；It is firmly scratched in one direction when blade coating, prevents a large amount of bubbles to be mixed into close
In sealing；Upstream face seal thickness is not less than 50mm, and back side seal thickness is not less than 30mm；
Apply checking and accepting after 24 hours, can soak after acceptance(check) or start backfilling working.
A kind of pipeline provided by the invention fills out material employed in culvert method and belongs to the finished product easily bought, and personnel's machinery is not
Additional outfit is needed, the personnel for having certain waterproof and antiseepage experience each may participate in construction；The investment of small amount brings dominant
Economic interests have a vast market foreground.
Filling out culvert with pipeline in the Laizhou Hua electricity electricity generating corporation, Ltd 2 × 1000MW of second phase ultra-supercritical coal-fired units engineering is
Example, fills out culvert method using pipeline provided by the present invention.The engineering is located at Laizhou City, the village Hai Beizui north side, gold cities and towns, west side and north
Side is on the verge of Laizhou Bay of Bohai Sea, and southern side is seashore shelterbelt, and construction place groundwater type is mainly Bedrock Crevice Water and the 4th
Be pore ground water, recharge of ground water source is mainly Atmospheric precipitation, Atmospheric precipitation largely pass through rainwash flow into it is marine.Ground
Being lauched discharge regime is mainly man-made recovery and surface evaporation, is followed by drained into a manner of undercurrent along bedrock fracture marine.Underground
Depth to water is 0.90~6.42m, and underground water has microcorrosion to concrete structure, has weak corruption to the reinforcing bar in concrete structure
Corrosion.The project is million group entry of large electric power plant, and structures service sleeve and formal pipeline enclosure, which are filled out, contains quality of seepage prevention
It is most important.
By carrying out on-the-spot investigation to above-mentioned project, in conjunction with current company project EPC platform at home and abroad, comprehensive research mesh
The preceding unit pipeline of project at home and abroad fills out each problem for containing waterproof and antiseepage, and analysis and research pipe end cleaning technique fills out and contains material, applies
Working medium amount, maintenance etc. it is many-sided it is comprehensive there are the problem of, culvert method is filled out to each structure using pipeline provided by the present invention
It builds object service sleeve and culvert work is filled out in formal pipeline enclosure gap, achieve following advantageous effects:
(1) significant effect after field conduct, phase buried pipeline fill out culvert and do not occur any leakage trace, save subsequent return
Repair maintenance cost spending, while reduce leakage reprocess give enterprise's bring negative effect.
(2) it is optimized by filling out the waterproof and antiseepage technique of culvert to pipeline, largely saves the expense of reprocessing of owner, together
When due to this new process it is more durable, it is ensured that meet power unit in economic operation contract requirement in 30 years, reduce owner because percolation zone come
Day-to-day operation maintenance cost, improve the economic benefit of owner.
(3) it is compared by performance analysis, the filling out of usual manner construction contains that percolation ratio is higher, and rework rate is comprehensive 80% or so
It is about 20,000 yuan that the single fighter for closing every cost reprocesses maintenance cost every time, according to environment locating for above-mentioned Laizhou second phase project, is put down
It just need to once be renovated within equal 5 years, according to operation contract requirement in 30 years, average every unit can save money 120,000 yuan.
A kind of pipeline provided by the invention fills out culvert method and both meets design waterproof and antiseepage requirement, also being capable of utmostly save the cost.
Site operation is convenient, does not need job that requires special skills equipment, and by super in the Laizhou Hua electricity electricity generating corporation, Ltd 2 × 1000MW of second phase
Demonstration is carried out in critical coal unit construction process, significant effect can be promoted in industry.
Claims (6)
1. a kind of pipeline fills out culvert method, which is characterized in that the described method includes:
Pipe end cleaning: eliminating impurities in the circumferential weld of service sleeve and formal pipeline enclosure are clean；
Installation water expandable waterstop: the interposition for beating water expandable waterstop to service sleeve and formal pipeline enclosure circumferential weld is filled out
It sets, service sleeve and formal pipeline enclosure fill out the total length for beating the water expandable waterstop of installation not less than 60mm；
Fill out beat asbestos cement: by water, asbestos, cement mixing it is uniform after, obtain asbestos cement filler, in water expandable waterstop two
The asbestos cement filler is clogged in the circumferential weld of side, after upstream face and back side filling asbestos cement filler, is reserved certain
The circumferential weld of length is used for subsequent filling polysulfide sealant；
Polysulfide sealant blocks: filling out after breaking asbestos cement, uses polysulfide sealant in the reserved circumferential weld of upstream face and back side
It is blocked, can be soaked after acceptance(check) or starts backfilling working.
2. a kind of pipeline fills out culvert method according to claim 1, which is characterized in that the step of the installation water expandable waterstop
Suddenly it specifically includes:
The superimposed layer of the vertical direction of water expandable waterstop is determined according to the circumferential weld width of service sleeve and formal pipeline enclosure
Number；The overall thickness of water expandable waterstop should be greater than circumferential weld width after superposition；
Each layer water expandable waterstop is firm using construction line binding, it is wrapped in the outer wall of formal pipeline, water-swellable sealing
The circumferential overlap joint of the joint of item is 60-100mm, and binds firm joint using construction line, keeps tight；
It is first filled out using the lumps of wood and hand hammer and beats water expandable waterstop to the middle position of service sleeve and formal pipeline enclosure circumferential weld, then
It is filled out simultaneously from circumferential weld two sides and beats water expandable waterstop, adjacent water expandable waterstop is bonded packed uniform tight, and meets water
The total length of expansion sealing strip is not less than 60mm, cuts construction line, next process is entered after acceptance(check).
3. a kind of pipeline fills out culvert method according to claim 1, which is characterized in that dozen asbestos cement of filling out specifically includes:
In mass ratio, by water, asbestos, cement according to 1:(2-3): the ratio of (5-8) is mixed and stirred for uniformly, adding three's mixture
The water of gross mass 10%-12% is uniformly mixed, and mixture can be pinched agglomerating without loose with hand, throws away the moist shape dissipated on the ground
State obtains asbestos cement filler；Wherein, the time of wet asbestos cement storage is not no more than 1h, not plus the dry asbestos water of water
The resting period of mud can not be more than 2 weeks；
It will be in the asbestos cement filler layered tamping to the circumferential weld for having installed water expandable waterstop that prepared；
By asbestos cement filler fill out beat it is closely knit after, in time maintenance heat preservation, formal pipeline must not be by external collision or torsion；Wherein support
Shield heat preservation can be carried out by the way of blanket plug reality circumferential weld；
It carries out an acceptance inspection after stone asbestos cement filler final set, next process is carried out after acceptance(check).
4. a kind of pipeline fills out culvert method according to claim 3, which is characterized in that the asbestos cement that will be prepared is filled out
Expect in layered tamping to the circumferential weld for having installed water expandable waterstop, specifically:
The asbestos cement filler, filling layered filling, every thickness are clogged in the circumferential weld of water expandable waterstop two sides
Degree is no more than 10mm, and every layer is beaten in fact with the lumps of wood and hand hammer；In upstream face, after filling asbestos cement filler, at least 50mm is reserved
The circumferential weld of length is used for subsequent filling polysulfide sealant, in back side, after filling asbestos cement filler, reserves at least 30mm long
The circumferential weld of degree is used for subsequent filling polysulfide sealant.
5. a kind of pipeline fills out culvert method according to claim 3, which is characterized in that dozen asbestos cement of filling out specifically includes:
The asbestos use asbestos wool, and the cement uses 32.5 ordinary portland cements；Wherein, in mass ratio, water: asbestos: cement
Mixed proportion be 1:3:7.
6. a kind of pipeline fills out culvert method according to claim 1, which is characterized in that the polysulfide sealant blocks, specifically:
Two-component polysulfide sealant product is selected, component A is barreled white paste, and B component is bottling liquid curing agent；Construction
When, B component liquid is all squeezed into component A bucket, is stirred until homogeneous up and down rapidly, is then filled in circumferential weld, is removed after filling and leading up
Extra glue；It is firmly scratched in one direction when blade coating, a large amount of bubbles is prevented to be mixed into sealant；Upstream face seal thickness is not
Less than 50mm, back side seal thickness is not less than 30mm；Apply checking and accepting after 24 hours, can soak or start back after acceptance(check)
Fill out work.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910431874.5A CN110285266A (en) | 2019-05-23 | 2019-05-23 | A kind of pipeline fills out culvert method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910431874.5A CN110285266A (en) | 2019-05-23 | 2019-05-23 | A kind of pipeline fills out culvert method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443720A (en) * | 2020-12-09 | 2021-03-05 | 无锡华毅管道有限公司 | Repair method for leakage of prestressed concrete cylinder pipe joint |
| CN112856050A (en) * | 2021-01-29 | 2021-05-28 | 华能青岛热电有限公司 | Pipeline wall-penetrating culvert filling construction process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112443720A (en) * | 2020-12-09 | 2021-03-05 | 无锡华毅管道有限公司 | Repair method for leakage of prestressed concrete cylinder pipe joint |
| CN112856050A (en) * | 2021-01-29 | 2021-05-28 | 华能青岛热电有限公司 | Pipeline wall-penetrating culvert filling construction process |
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Application publication date: 20190927 |
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