CN110067293A - Sewage conduct engineering construction process - Google Patents
Sewage conduct engineering construction process Download PDFInfo
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- CN110067293A CN110067293A CN201910338826.1A CN201910338826A CN110067293A CN 110067293 A CN110067293 A CN 110067293A CN 201910338826 A CN201910338826 A CN 201910338826A CN 110067293 A CN110067293 A CN 110067293A
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- protective layer
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D159/00—Coating compositions based on polyacetals; Coating compositions based on derivatives of polyacetals
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/06—Methods of, or installations for, laying sewer pipes
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to municipal pipeline technical field of construction; heading into for pipeline is the larger problem of frictional force; a kind of sewage conduct engineering construction process is provided, the technical solution is as follows: including: the pretreatment of S1. pipeline, it is specific as follows: to smear protective layer mixture in pipeline outer wall to form protective layer；S2. push pipe；S3. inspection shaft is built；Protective layer mixture includes the component of following mass fraction: 100 parts of polyformaldehyde；3-5 parts of silane coupling agent；Pipeline uses concrete reinforced pipe, and the concrete slurry for forming the concrete of the pipeline includes the component of following mass fraction: 100 parts of cement；150-180 parts of sandstone；30-35 parts of copper powder；80-90 parts of water；5-7 parts of water-reducing agent.By smearing protective layer mixture in pipeline outer wall to form protective layer, and protective layer, using the self-lubricating property of polyformaldehyde, so that pipeline is easy to head into, improves the efficiency of push pipe operation using polyformaldehyde as matrix.
Description
Technical field
The present invention relates to municipal pipeline technical field of construction, more particularly, to a kind of sewage conduct engineering construction process.
Background technique
Sewage network is the main means of sewage effluent in municipal drainage system, usually by provided underground sewage pipe with
Sewage discharge to treatment plant is subjected to sewage treatment, to reduce water pollution.
When sewage pipe construction, traffic is influenced to reduce pavement excavation, it will usually use pipe pushing technology, but due to rubbing when push pipe
It is larger to wipe power, although reinforced concrete pipiline intensity is higher, encounter underground compactness it is larger when, the frictional force that need to overcome
Larger, especially pipeline heads into more, and frictional force will be bigger, causes to take a long time when push pipe, in some instances it may even be possible to because push pipe is set
Standby underpower leads to not head into, and therefore, there are also improve space.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of sewage conduct engineering construction process,
Have the advantages that pipeline is easier to head into.
To achieve the above object, the present invention provides the following technical scheme that
A kind of sewage conduct engineering construction process, comprising the following steps:
S1. pipeline pre-processes, specific as follows:
Protective layer mixture is smeared in pipeline outer wall to form protective layer；
S2. push pipe；
S3. inspection shaft is built；
The protective layer mixture includes the component of following mass fraction:
100 parts of polyformaldehyde；
3-5 parts of silane coupling agent；
The pipeline uses concrete reinforced pipe, and the concrete slurry for forming the concrete of the pipeline includes following quality
The component of number:
100 parts of cement；
150-180 parts of sandstone；
30-35 parts of copper powder；
80-90 parts of water；
5-7 parts of water-reducing agent.
By using above-mentioned technical proposal, by smearing protective layer mixture in pipeline outer wall to form protective layer, and
Protective layer is using polyformaldehyde as matrix, using the self-lubricating property of polyformaldehyde, so that the frictional force of pipeline and soil declines to a great extent, into
And pipeline is made to be easy to head into, the time of required consuming when pipeline heads into is reduced, the efficiency of push pipe operation is improved；
By the way that silane coupling agent is added in protective layer mixture, to protect with the Silanization reaction by silane coupling agent
The concrete of sheath and reinforced concrete pipiline is combined closely, so that protective layer is not easily disconnected from, so that protective layer is sustainedly and stably
Lubrication piping；
By in the concrete of pipeline added with copper powder so that the heat-conducting effect of pipeline is promoted so that heating pipe with
So that silane coupling agent and concrete generation Silanization reaction are preferable with the effect for being stably connected with protective layer and pipeline.
The present invention is further arranged to: the protective layer mixture further includes the component of following mass fraction:
33-39 parts of Triafol T.
Three acetic acid are utilized by the way that Triafol T is added in protective layer mixture by using above-mentioned technical proposal
Cellulose and polyformaldehyde cooperate, so that the compressive strength of protective layer is substantially improved, so that protective layer is settable relatively thin, reduce
Protective layer material dosage so that material consumption is reduced, while to be less prone to during push pipe because protection layer compression is strong
Degree is insufficient and protective layer is caused to be squeezed and broken situation by soil.
The present invention is further arranged to: the protective layer mixture further includes the component of following mass fraction:
3-5 parts of glass fibre.
By using above-mentioned technical proposal, by the way that glass fibre is added in protective layer mixture, to utilize glass fibre
The toughness of protective layer is improved, so that protective layer is not tearable, so that protective layer preferably sustainable protection pipeline, so that pipeline top
Fashionable more smoothly effect is relatively stable.
The present invention is further arranged to: the protective layer mixture further includes the component of following mass fraction:
10-12 parts of durian shell powder.
By using above-mentioned technical proposal, by the way that durian shell powder is added in protective layer mixture, so that protective layer is resistance to
It grinds performance more preferably, so that protective layer is not easy to wear during pipeline heads into, so that protective layer is settable relatively thin, reduces material
Effect, save the cost.
The present invention is further arranged to: in the S2, the first position spitting drill excavation construction well according to inspection shaft in construction drawing,
The push pipe in construction well.
By using above-mentioned technical proposal, spitting drill excavation construction well is carried out according to the position of inspection shaft by elder generation, so that applying
Work well can directly be transformed into inspection shaft after construction, reduce excavation step when checking well construction to a certain extent, mention
High construction efficiency.
The present invention is further arranged to: in the S3, casting concrete to construction well side wall is to form inspection shaft.
By using above-mentioned technical proposal, by casting concrete to construction well side wall to form inspection shaft, so that checking
Well construction step is more convenient, so that the construction efficiency of inspection shaft is higher.
The present invention is further arranged to: in the S1, pipeline outer wall is heated and be applied to by protective layer mixture, by adding
Thermal heats reinforcing bar to carry out Silanization reaction.
By using above-mentioned technical proposal, by heating reinforcing bar, so that pipeline generates heat, since silane coupling agent is carrying out silicon
Certain temperature is needed when alkylation reaction, guarantees the silicon in the protective layer mixture being applied on pipeline outer wall by pipeline fever
With concrete Silanization reaction can sufficiently occur for alkane coupling agent, so that protective layer after cooling and pipeline stable connection, no
Easily be detached from, by due to reinforcing bar heat transfer efficiency it is higher, be easy to heat quickly and uniform transmitting, so that effect when heating pipe
Fruit is preferable
The present invention is further arranged to: the preparation method of the protective layer mixture the following steps are included:
A. polyformaldehyde particle, silane coupling agent are added in a stirring kettle, stirs evenly to form just mixed object；
B. Triafol T, glass fibre, durian shell powder are added in a stirring kettle, stirs evenly to form pre-composition；
C. by pre-composition discharging into double screw extruder, extruding pelletization forms protective layer mixture.
By using above-mentioned technical proposal, by first mixing polyformaldehyde particle with silane coupling agent, so that polyformaldehyde
Grain mixed with silane coupling agent it is more uniform, by by all raw materials after mixing evenly again by double screw extruder granulation, subtract
It the few time of each material at high operating temperatures, is mixed compared in the state of high-temperature fusion, shortens the thermal history of material,
The case where reducing thermo-oxidative ageing.
In conclusion the invention has the following advantages:
1. by smearing protective layer mixture in pipeline outer wall to form protective layer, and protective layer is using polyformaldehyde as base
Body, so that pipeline is easy to head into, improves the efficiency of push pipe operation using the self-lubricating property of polyformaldehyde；
2. by the way that silane coupling agent is added in protective layer mixture, so that protective layer is not easily disconnected from, so that protective layer is held
Continuous steadily lubrication piping；
3. cooperated by the way that Triafol T is added in protective layer mixture using Triafol T and polyformaldehyde,
So that the compressive strength of protective layer is substantially improved, so that being less prone to during push pipe causes because protective layer compressive strength is insufficient
Protective layer is squeezed and broken situation by soil；
4. by the way that durian shell powder is added in protective layer mixture, so that the wear-resisting property of protective layer is more preferably, so that pipeline
During heading into, protective layer is not easy to wear.
Detailed description of the invention
Fig. 1 is the flow diagram of sewage conduct engineering construction process in the present invention.
Specific embodiment
With reference to the accompanying drawings and embodiments, invention is further described in detail.
Embodiment 1
A kind of sewage conduct engineering construction process, referring to Fig.1, comprising the following steps:
S1. pipeline pre-processes, specific as follows:
Pipeline uses prestressed reinforced concrete pipe road, by support frame supporting pipeline both ends, so that pipe level is suspended from
In the air, by electric-heating-wire-heating reinforcing bar so that pipeline is heated to 180 DEG C, then by thermofusion device, by protective layer mixture
It after 180 DEG C are heated to hot melt, is applied on pipeline outer wall, asbestos gauge is then wrapped up outside pipeline, asbestos gauge and protective layer are mixed
Closing object, there are at least spacing of 2cm, stop heating after pipeline outer wall constant temperature 5min, unload asbestos gauge, natural cooling is to be protected
Layer is cooled to room temperature rear and can be used for push pipe operation.
Protective layer thickness is 5mm in the present embodiment.
S2. push pipe, specific as follows:
According to the position of inspection shaft in design drawing, spitting drill excavation construction well at least bores digging and finishes two neighboring construction well
Afterwards, then by conduit jacking it lifts to construction well, then starts push pipe operation；
When push pipe, first first segment piping unit is connect with high -pressure water cutting device, after cutter device is headed into soil,
Successively piping unit is headed into again.
S3 builds inspection shaft, specific as follows:
After pipeline between adjacent inspection shaft heads into, conduit jacking is lifted by crane to transport out of construction well, is then being constructed
Template is built in well, casting concrete is to constructing between well and template, to form inspection shaft inner wall using concrete, to concrete
After initial set, lower template is unloaded, that is, forms inspection shaft；
When building template, inside mould pipe connecting pipe and inspection shaft, blocking pipe oral area after concreting is avoided.
The preparation method of the concrete slurry for the concrete parts for forming prestressed reinforced concrete pipe road includes following step
It is rapid:
A. cement 100kg, copper powder 30kg are added in agitating device, revolving speed 30r/min stirs 5min；
B. water 80kg, water-reducing agent 7kg are added in agitating device, revolving speed 45r/min stirs 8min；
C. sandstone 150kg, revolving speed 15r/min are added in agitating device, stirs 10min, revolving speed 10r/min is persistently stirred
It is finished to using.
The preparation method of protective layer mixture the following steps are included:
A. polyformaldehyde particle 100kg, silane coupling agent 3kg, revolving speed 45r/min, after stirring 5min are added in a stirring kettle
Form just mixed object；
B. object discharging will just be mixed into double screw extruder, extruding pelletization forms protective layer mixture.
Embodiment 2
The difference from embodiment 1 is that:
The preparation method of the concrete slurry for the concrete parts for forming prestressed reinforced concrete pipe road includes following step
It is rapid:
A. cement 100kg, copper powder 33kg are added in agitating device, revolving speed 30r/min stirs 5min；
B. water 85kg, water-reducing agent 6kg are added in agitating device, revolving speed 45r/min stirs 8min；
C. sandstone 165kg, revolving speed 15r/min are added in agitating device, stirs 10min, revolving speed 10r/min is persistently stirred
It is finished to using.
The preparation method of protective layer mixture the following steps are included:
A. polyformaldehyde particle 100kg, silane coupling agent 4kg, revolving speed 45r/min, after stirring 5min are added in a stirring kettle
Form just mixed object；
B. object discharging will just be mixed into double screw extruder, extruding pelletization forms protective layer mixture.
Embodiment 3
The difference from embodiment 1 is that:
The preparation method of the concrete slurry for the concrete parts for forming prestressed reinforced concrete pipe road includes following step
It is rapid:
A. cement 100kg, copper powder 35kg are added in agitating device, revolving speed 30r/min stirs 5min；
B. water 90kg, water-reducing agent 7kg are added in agitating device, revolving speed 45r/min stirs 8min；
C. sandstone 180kg, revolving speed 15r/min are added in agitating device, stirs 10min, revolving speed 10r/min is persistently stirred
It is finished to using.
The preparation method of protective layer mixture the following steps are included:
A. polyformaldehyde particle 100kg, silane coupling agent 5kg, revolving speed 45r/min, after stirring 5min are added in a stirring kettle
Form just mixed object；
B. object discharging will just be mixed into double screw extruder, extruding pelletization forms protective layer mixture.
Embodiment 4
The difference from embodiment 1 is that:
The preparation method of the concrete slurry for the concrete parts for forming prestressed reinforced concrete pipe road includes following step
It is rapid:
A. cement 100kg, copper powder 32kg are added in agitating device, revolving speed 30r/min stirs 5min；
B. water 88kg, water-reducing agent 6.8kg are added in agitating device, revolving speed 45r/min stirs 8min；
C. sandstone 170kg, revolving speed 15r/min are added in agitating device, stirs 10min, revolving speed 10r/min is persistently stirred
It is finished to using.
The preparation method of protective layer mixture the following steps are included:
A. polyformaldehyde particle 100kg, silane coupling agent 3.5kg are added in a stirring kettle, revolving speed 45r/min stirs 5min
Just mixed object is formed afterwards；
B. object discharging will just be mixed into double screw extruder, extruding pelletization forms protective layer mixture.
Embodiment 5
Difference with embodiment 4 is:
The preparation method of the concrete slurry for the concrete parts for forming prestressed reinforced concrete pipe road includes following step
It is rapid:
A. cement 100kg, copper powder 32kg are added in agitating device, revolving speed 30r/min stirs 5min；
B. water 88kg, water-reducing agent 6.8kg are added in agitating device, revolving speed 45r/min stirs 8min；
C. sandstone 170kg, revolving speed 15r/min are added in agitating device, stirs 10min, revolving speed 10r/min is persistently stirred
It is finished to using.
The preparation method of protective layer mixture the following steps are included:
A. polyformaldehyde particle 100kg, silane coupling agent 3.5kg are added in a stirring kettle, revolving speed 45r/min stirs 5min
Just mixed object is formed afterwards；
B. Triafol T 33kg, glass fibre 3kg, durian shell powder 10kg, revolving speed 45r/ are added in a stirring kettle
Min forms pre-composition after stirring 5min；
C. by pre-composition discharging into double screw extruder, extruding pelletization forms protective layer mixture.
In the present embodiment, glass fibre length is 2 ± 0.1cm.
Embodiment 6
Difference with embodiment 4 is:
The preparation method of the concrete slurry for the concrete parts for forming prestressed reinforced concrete pipe road includes following step
It is rapid:
A. cement 100kg, copper powder 32kg are added in agitating device, revolving speed 30r/min stirs 5min；
B. water 88kg, water-reducing agent 6.8kg are added in agitating device, revolving speed 45r/min stirs 8min；
C. sandstone 170kg, revolving speed 15r/min are added in agitating device, stirs 10min, revolving speed 10r/min is persistently stirred
It is finished to using.
The preparation method of protective layer mixture the following steps are included:
A. polyformaldehyde particle 100kg, silane coupling agent 3.5kg are added in a stirring kettle, revolving speed 45r/min stirs 5min
Just mixed object is formed afterwards；
B. Triafol T 36kg, glass fibre 4kg, durian shell powder 11kg, revolving speed 45r/ are added in a stirring kettle
Min forms pre-composition after stirring 5min；
C. by pre-composition discharging into double screw extruder, extruding pelletization forms protective layer mixture.
In the present embodiment, glass fibre length is 3 ± 0.1cm.
Embodiment 7
Difference with embodiment 4 is:
The preparation method of the concrete slurry for the concrete parts for forming prestressed reinforced concrete pipe road includes following step
It is rapid:
A. cement 100kg, copper powder 32kg are added in agitating device, revolving speed 30r/min stirs 5min；
B. water 88kg, water-reducing agent 6.8kg are added in agitating device, revolving speed 45r/min stirs 8min；
C. sandstone 170kg, revolving speed 15r/min are added in agitating device, stirs 10min, revolving speed 10r/min is persistently stirred
It is finished to using.
The preparation method of protective layer mixture the following steps are included:
A. polyformaldehyde particle 100kg, silane coupling agent 3.5kg are added in a stirring kettle, revolving speed 45r/min stirs 5min
Just mixed object is formed afterwards；
B. Triafol T 39kg, glass fibre 5kg, durian shell powder 12kg, revolving speed 45r/ are added in a stirring kettle
Min forms pre-composition after stirring 5min；
C. by pre-composition discharging into double screw extruder, extruding pelletization forms protective layer mixture.
In the present embodiment, glass fibre length is 1 ± 0.1cm.
Embodiment 8
Difference with embodiment 4 is:
The preparation method of the concrete slurry for the concrete parts for forming prestressed reinforced concrete pipe road includes following step
It is rapid:
A. cement 100kg, copper powder 32kg are added in agitating device, revolving speed 30r/min stirs 5min；
B. water 88kg, water-reducing agent 6.8kg are added in agitating device, revolving speed 45r/min stirs 8min；
C. sandstone 170kg, revolving speed 15r/min are added in agitating device, stirs 10min, revolving speed 10r/min is persistently stirred
It is finished to using.
The preparation method of protective layer mixture the following steps are included:
A. polyformaldehyde particle 100kg, silane coupling agent 3.5kg are added in a stirring kettle, revolving speed 45r/min stirs 5min
Just mixed object is formed afterwards；
B. Triafol T 35kg, glass fibre 3.5kg, durian shell powder 11kg, revolving speed 45r/ are added in a stirring kettle
Min forms pre-composition after stirring 5min；
C. by pre-composition discharging into double screw extruder, extruding pelletization forms protective layer mixture.
In the present embodiment, glass fibre length is 2 ± 0.1cm.
Comparative example 1
Difference with embodiment 8 is:
The preparation method of the concrete slurry for the concrete parts for forming prestressed reinforced concrete pipe road includes following step
It is rapid:
A. cement 100kg, copper powder 32kg are added in agitating device, revolving speed 30r/min stirs 5min；
B. water 88kg, water-reducing agent 6.8kg are added in agitating device, revolving speed 45r/min stirs 8min；
C. sandstone 170kg, revolving speed 15r/min are added in agitating device, stirs 10min, revolving speed 10r/min is persistently stirred
It is finished to using.
The preparation method of protective layer mixture the following steps are included:
A. polyformaldehyde particle 100kg, silane coupling agent 3.5kg are added in a stirring kettle, revolving speed 45r/min stirs 5min
Just mixed object is formed afterwards；
B. glass fibre 3.5kg, durian shell powder 11kg, revolving speed 45r/min are added in a stirring kettle, is formed after stirring 5min
Pre-composition；
C. by pre-composition discharging into double screw extruder, extruding pelletization forms protective layer mixture.
In the present embodiment, glass fibre length is 2 ± 0.1cm.
Comparative example 2
Difference with embodiment 8 is:
The preparation method of the concrete slurry for the concrete parts for forming prestressed reinforced concrete pipe road includes following step
It is rapid:
A. cement 100kg, copper powder 32kg are added in agitating device, revolving speed 30r/min stirs 5min；
B. water 88kg, water-reducing agent 6.8kg are added in agitating device, revolving speed 45r/min stirs 8min；
C. sandstone 170kg, revolving speed 15r/min are added in agitating device, stirs 10min, revolving speed 10r/min is persistently stirred
It is finished to using.
The preparation method of protective layer mixture the following steps are included:
A. polyformaldehyde particle 100kg, silane coupling agent 3.5kg are added in a stirring kettle, revolving speed 45r/min stirs 5min
Just mixed object is formed afterwards；
B. Triafol T 45kg, glass fibre 3.5kg, durian shell powder 11kg, revolving speed 45r/ are added in a stirring kettle
Min forms pre-composition after stirring 5min；
C. by pre-composition discharging into double screw extruder, extruding pelletization forms protective layer mixture.
In the present embodiment, glass fibre length is 2 ± 0.1cm.
Comparative example 3
Difference with embodiment 8 is:
The preparation method of the concrete slurry for the concrete parts for forming prestressed reinforced concrete pipe road includes following step
It is rapid:
A. cement 100kg, copper powder 32kg are added in agitating device, revolving speed 30r/min stirs 5min；
B. water 88kg, water-reducing agent 6.8kg are added in agitating device, revolving speed 45r/min stirs 8min；
C. sandstone 170kg, revolving speed 15r/min are added in agitating device, stirs 10min, revolving speed 10r/min is persistently stirred
It is finished to using.
The preparation method of protective layer mixture the following steps are included:
A. polyformaldehyde particle 100kg, silane coupling agent 3.5kg are added in a stirring kettle, revolving speed 45r/min stirs 5min
Just mixed object is formed afterwards；
B. Triafol T 35kg, glass fibre 3.5kg, revolving speed 45r/min, after stirring 5min are added in a stirring kettle
Form pre-composition；
C. by pre-composition discharging into double screw extruder, extruding pelletization forms protective layer mixture.
In the present embodiment, glass fibre length is 2 ± 0.1cm.
Comparative example 4
Difference with embodiment 8 is:
The preparation method of the concrete slurry for the concrete parts for forming prestressed reinforced concrete pipe road includes following step
It is rapid:
A. cement 100kg, copper powder 32kg are added in agitating device, revolving speed 30r/min stirs 5min；
B. water 88kg, water-reducing agent 6.8kg are added in agitating device, revolving speed 45r/min stirs 8min；
C. sandstone 170kg, revolving speed 15r/min are added in agitating device, stirs 10min, revolving speed 10r/min is persistently stirred
It is finished to using.
The preparation method of protective layer mixture the following steps are included:
A. polyformaldehyde particle 100kg, silane coupling agent 3.5kg are added in a stirring kettle, revolving speed 45r/min stirs 5min
Just mixed object is formed afterwards；
B. Triafol T 35kg, glass fibre 3.5kg, durian shell powder 11kg, revolving speed 45r/ are added in a stirring kettle
Min forms pre-composition after stirring 5min；
C. by pre-composition discharging into double screw extruder, extruding pelletization forms protective layer mixture.
In the present embodiment, glass fibre length is 2 ± 0.1cm.
Comparative example 5
Difference with embodiment 8 is:
Cancellation step S1.
Experiment 1
It detected according to GB10006-88 " plastic film and thin slice measuring friction coefficient method " using embodiment 1-8, compared
In example 1-4 in protective layer mixture and comparative example 5 sample of concrete slurry preparation coefficient of friction.
Experiment 2
It is utilized in embodiment 1-8, comparative example 1-4 and is protected according to GBT1041-2008 " measurement of plastic compression performance " detection
The compressive strength of the sample of layer mixture preparation.
Experiment 3
According to GB/T5478-2008 " plastics rolling wear test method " detection using in embodiment 1-8, comparative example 1-4
Mass loss amount of the sample of protective layer mixture preparation when rotating 1000r.
Specific experiment data are shown in Table 1
Table 1
It can be obtained, be cooperated by Triafol T and polyformaldehyde, so that the compressive strength of protective layer is substantially mentioned according to table 1
It rises, the coefficient of friction of protective layer will be made to be increased after Triafol T is added, but ascensional range is little, when three acetic acid fibre
After the plain additional amount of dimension is excessively high, the coefficient of friction for making protective layer is persistently risen but the effect for improving protective layer compressive strength is obvious
Decline.
The wear-resisting property of protective layer can be effectively improved by the way that durian shell powder is added so that protective layer after rotating 1000r,
Mass loss amount significantly decreases, and when so that pipeline heading into, protective layer is not easy to wear.
Pipeline is wrapped up by protective layer, the friction system of concrete is obviously significantly lower than using the coefficient of friction of protective layer
Number so that the required used time is shorter when push pipe, and then improves the effect of push pipe operation so that pipeline has preferable lubricant effect
Rate.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (8)
1. a kind of sewage conduct engineering construction process, it is characterized in that: the following steps are included:
S1. pipeline pre-processes, specific as follows:
Protective layer mixture is smeared in pipeline outer wall to form protective layer；
S2. push pipe；
S3. inspection shaft is built；
The protective layer mixture includes the component of following mass fraction:
100 parts of polyformaldehyde；
3-5 parts of silane coupling agent；
The pipeline uses concrete reinforced pipe, and the concrete slurry for forming the concrete of the pipeline includes following mass fraction
Component:
100 parts of cement；
150-180 parts of sandstone；
30-35 parts of copper powder；
80-90 parts of water；
5-7 parts of water-reducing agent.
2. sewage conduct engineering construction process according to claim 1, it is characterized in that: the protective layer mixture further includes
The component of following mass fraction:
33-39 parts of Triafol T.
3. sewage conduct engineering construction process according to claim 2, it is characterized in that: the protective layer mixture further includes
The component of following mass fraction:
3-5 parts of glass fibre.
4. sewage conduct engineering construction process according to claim 3, it is characterized in that: the protective layer mixture further includes
The component of following mass fraction:
10-12 parts of durian shell powder.
5. sewage conduct engineering construction process according to claim 4, it is characterized in that: in the S2, first according to construction drawing
The position spitting drill excavation construction well of middle inspection shaft, the push pipe in construction well.
6. sewage conduct engineering construction process according to claim 1, it is characterized in that: casting concrete is extremely in the S3
Well side wall construct to form inspection shaft.
7. sewage conduct engineering construction process according to claim 1, it is characterized in that: mixing protective layer in the S1
Object heats and is applied to pipeline outer wall, by heating devices heat reinforcing bar to carry out Silanization reaction.
8. sewage conduct engineering construction process according to claim 1, it is characterized in that: the preparation of the protective layer mixture
Method the following steps are included:
A. polyformaldehyde particle, silane coupling agent are added in a stirring kettle, stirs evenly to form just mixed object；
B. Triafol T, glass fibre, durian shell powder are added in a stirring kettle, stirs evenly to form pre-composition；
C. by pre-composition discharging into double screw extruder, extruding pelletization forms protective layer mixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910338826.1A CN110067293A (en) | 2019-04-25 | 2019-04-25 | Sewage conduct engineering construction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910338826.1A CN110067293A (en) | 2019-04-25 | 2019-04-25 | Sewage conduct engineering construction process |
Publications (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110645411A (en) * | 2019-09-11 | 2020-01-03 | 中地国际工程有限公司 | Pipeline laying method |
| CN111364586A (en) * | 2020-03-18 | 2020-07-03 | 广州众粤市政园林设计工程有限公司 | Construction method of road drainage pipeline |
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