CN113585426A - Construction process of outdoor drainage pipeline - Google Patents
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- CN113585426A CN113585426A CN202110980750.XA CN202110980750A CN113585426A CN 113585426 A CN113585426 A CN 113585426A CN 202110980750 A CN202110980750 A CN 202110980750A CN 113585426 A CN113585426 A CN 113585426A
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- 238000010276 construction Methods 0.000 title claims abstract description 86
- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000012360 testing method Methods 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000012545 processing Methods 0.000 claims abstract description 8
- 238000005259 measurement Methods 0.000 claims abstract description 6
- 238000009412 basement excavation Methods 0.000 claims description 36
- 238000010586 diagram Methods 0.000 claims description 15
- 238000007689 inspection Methods 0.000 claims description 14
- 239000004575 stone Substances 0.000 claims description 10
- 239000004576 sand Substances 0.000 claims description 8
- 238000013461 design Methods 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 229920001903 high density polyethylene Polymers 0.000 claims description 5
- 239000004700 high-density polyethylene Substances 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 238000005070 sampling Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000011179 visual inspection Methods 0.000 claims description 3
- 238000009933 burial Methods 0.000 claims 1
- 239000011435 rock Substances 0.000 claims 1
- 238000011835 investigation Methods 0.000 description 6
- 230000006378 damage Effects 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 208000012260 Accidental injury Diseases 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000005056 compaction Methods 0.000 description 1
Classifications
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- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/12—Back-filling of foundation trenches or ditches
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Pipeline Systems (AREA)
Abstract
The invention relates to a construction process of an outdoor drainage pipeline, which comprises the following steps: (1) lofting measurement, (2) digging a groove, (3) installing a pipeline: after the pipeline groove is qualified, processing a pipeline foundation, and then laying and installing a pipeline; (4) water closing test, and (5) groove backfilling. The invention reasonably arranges the construction flow, has reasonable working procedures, convenient construction and high working efficiency, reduces reworking and nest work, avoids accidentally damaging the existing underground pipelines and has reliable construction quality.
Description
Technical Field
The invention belongs to the technical field of pipeline construction, and particularly relates to a construction process of an outdoor drainage pipeline.
Background
At present, in municipal rainwater and sewage discharge and industrial wastewater discharge projects, a construction method of buried drain pipes is basically adopted, construction procedures are various, standards are different, processes are disordered, construction quality is difficult to guarantee, an outdoor drain pipe construction process with reasonable working procedures and convenient construction is developed, and the construction process has very important significance for guaranteeing the construction quality of municipal rainwater and sewage discharge and industrial wastewater discharge projects, and safe and reliable operation.
Disclosure of Invention
The invention provides a construction process of an outdoor water drainage pipeline, which avoids accidental injury of the existing underground pipeline, has reliable construction quality and reduces reworking and labor saving.
In order to solve the technical problems, the invention provides a construction process of an outdoor drainage pipeline, which comprises the following steps:
(1) lofting measurement: determining the central axis, the elevation and the side line of the pipeline groove according to a construction drawing, arranging small wooden piles at the side line of the lofted pipeline groove, arranging central piles at intervals of 20 meters, drawing a longitudinal section diagram of the pipeline groove, checking the construction drawing, investigating the existing pipeline in a construction range, making pipeline protection measures, and checking a construction pipe;
(2) digging a groove: after the pipeline is positioned, measured and paid off, excavating in a mode of combining manpower and machinery according to a section diagram of the earthwork excavation; adopting manual excavation when mechanical excavation is carried out to the design elevation of 200-300mm, and leveling to avoid the over excavation phenomenon, if the over excavation occurs, adopting medium sand or stone chips for backfilling, and using a flat vibrator for compaction to reduce the disturbance or damage of the soil at the bottom of the tank;
(3) installing a pipeline: after the pipeline groove is qualified, processing a pipeline foundation, and then laying and installing a pipeline; the pipe is made of HDPE double-corrugated pipes, and the pipe joints are connected in a supporting mode (DN is less than or equal to 500mm) and in an electric melting mode (DN is greater than or equal to 600 mm);
(4) water-closing test: the pipeline is qualified in appearance inspection and acceptance, qualified in internal inspection, and subjected to a water closing test after being cleaned and accepted;
(5) backfilling the groove: after the pipeline water-closing test is qualified, backfilling and tamping the groove;
furthermore, the step (1) adopts open trench excavation and geological radar detector detection cooperation to the construction area, finds out the specific buried depth and the trend of the existing underground pipeline, carries out settlement and horizontal displacement observation on the existing pipeline, properly processes the existing pipeline without construction contradiction with the plane and elevation relation of the existing related pipeline, marks the underground pipeline which influences the construction and is influenced by the construction on a construction general plane layout diagram, and carries out construction protection work;
further, the step (1) adopts a visual inspection method and a sampling inspection method to inspect the quality of the pipe for construction;
furthermore, excavation is carried out in the step (2) in a mode of combining manpower with machinery, the machinery carries out 70% excavation, the assistance of the manpower is 30%, the height and the axis of the bottom of the excavated groove meet the requirements of design drawings, and the minimum width of the bottom of the groove is more than or equal to 1100mm of the diameter of the installation pipeline;
further, the pipeline foundation treatment in the step (3) is implemented by adopting methods of stirring piles, throwing and filling block stones and replacing and filling gravel sand;
furthermore, the water closing test in the step (4) adopts a sectional test, the separation length of the pipeline is not more than 1000m, the water seepage observation time is not less than 30min, and the test pressure is the upstream designed water head plus 2 meters;
and (3) further, backfilling the grooves in the step (5), namely backfilling the grooves to a pipe diameter height which is one time of the pipe diameter height above the top of the pipe, backfilling the two sides of the pipeline symmetrically at the same time, manually backfilling the grooves in a range from the bottom basic position of the pipe to the top of the pipe by 0.5m, and backfilling the grooves in a range from the bottom basic position of the pipe to the top of the pipe by using a stone chip material.
Has the advantages that:
(1) the construction process for the outdoor drainage pipeline, provided by the invention, has the advantages of reasonable process, simple flow and accurate pipe arrangement, can well protect the existing pipeline, avoid accidental injury to the existing pipeline, reduce reworking and labor, and improve the pipeline installation efficiency.
(2) The construction process of the outdoor drainage pipeline has strong operability, reliable pipeline installation quality, firm pipeline foundation and dense backfill, and improves the engineering construction quality.
Detailed Description
In order to make the objects, contents and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention is provided.
Example 1
A construction process for an outdoor drainage pipeline comprises the following steps:
(1) lofting measurement: determining the central axis, the elevation and the side line of a pipeline groove according to a construction drawing, arranging small wooden piles at the side line of the lofted pipeline groove, arranging central piles at certain intervals, drawing a longitudinal section diagram of the pipeline groove, checking the construction drawing, investigating the existing pipeline in a construction range, making pipeline protection measures, and inspecting the construction pipes by adopting a visual inspection method; the method comprises the following steps of (1) detecting and matching open trench excavation and an address radar detector for a construction area, detecting the specific buried depth and the specific direction of the underground, carrying out settlement and horizontal displacement observation on the existing pipeline to carry out existing pipeline investigation, properly processing the existing pipeline investigation without construction contradiction with the plane and the elevation pipeline of the existing related pipeline, marking underground pipelines which influence construction and are influenced by construction on a construction general plane layout diagram, and carrying out construction protection work;
(2) digging a groove: after the pipeline is positioned, measured and paid off, excavating in a mode of combining manpower and machinery according to a section diagram of the earthwork excavation; adopting manual excavation and leveling when mechanical excavation is carried out until the designed elevation is 200mm, avoiding the over-excavation phenomenon, if the over-excavation exists, adopting medium sand or stone chips for backfilling, and using a flat vibrator for compacting, and reducing the disturbance or damage of the soil at the bottom of the tank;
(3) installing a pipeline: after the pipeline groove is qualified, processing the pipeline foundation by using a stirring pile, and then laying and installing the pipeline; the pipe is made of HDPE double-corrugated pipes, and the pipe joints are connected in a supporting mode (DN is less than or equal to 500mm) and in an electric melting mode (DN is greater than or equal to 600 mm); the mechanical excavation is carried out for 70 percent, the manual assistance is matched for 30 percent, the height and the axis of the bottom of the excavated groove meet the requirements of design drawings, and the minimum width of the bottom of the groove is more than or equal to 1100mm of the diameter of the pipeline;
(4) water-closing test: the pipeline is qualified in appearance inspection and acceptance, qualified in internal inspection, and subjected to a water closing test after being cleaned and accepted; the water closing test adopts a sectional test, the separation length of a pipeline is not more than 1000m, the water seepage observation time is not less than 30min, and the test pressure is the upstream designed water head plus 2 meters;
(5) backfilling the groove: and after the pipeline water-closing test is qualified, backfilling the groove, backfilling to the pipe diameter height which is one time more than the top of the pipe, backfilling the two sides of the pipeline symmetrically at the same time, manually backfilling from the bottom of the pipe to the top of the pipe within 0.5m, backfilling the groove from the bottom of the pipe to the top of the pipe within 0.5m, and tamping.
Example 2
A construction process for an outdoor drainage pipeline comprises the following steps:
(1) lofting measurement: determining the central axis, the elevation and the side line of a pipeline groove according to a construction drawing, arranging small wooden piles at the side line of the lofted pipeline groove, arranging central piles at intervals of 20 meters, drawing a longitudinal section diagram of the pipeline groove, checking the construction drawing, investigating the existing pipeline in a construction range, making pipeline protection measures, and inspecting the construction pipe by adopting a sampling inspection method; the method comprises the following steps of (1) detecting and matching open trench excavation and an address radar detector for a construction area, detecting the specific buried depth and the specific direction of the underground, carrying out settlement and horizontal displacement observation on the existing pipeline to carry out existing pipeline investigation, properly processing the existing pipeline investigation without construction contradiction with the plane and the elevation pipeline of the existing related pipeline, marking underground pipelines which influence construction and are influenced by construction on a construction general plane layout diagram, and carrying out construction protection work;
(2) digging a groove: after the pipeline is positioned, measured and paid off, excavating in a mode of combining manpower and machinery according to a section diagram of the earthwork excavation; adopting manual excavation and leveling when mechanical excavation is carried out to reach the design elevation of 250mm, avoiding the over-excavation phenomenon, if the over-excavation exists, adopting medium sand or stone chips for backfilling, and using a flat vibrator for compacting, and reducing the disturbance or damage of the soil at the bottom of the tank;
(3) installing a pipeline: after the pipeline groove is qualified, processing the pipeline foundation by adopting the riprap stone, and then laying and installing the pipeline; the pipe is made of HDPE double-corrugated pipes, and the pipe joints are connected in a supporting mode (DN is less than or equal to 500mm) and in an electric melting mode (DN is greater than or equal to 600 mm); the mechanical excavation is carried out for 70 percent, the manual assistance is matched for 30 percent, the height and the axis of the bottom of the excavated groove meet the requirements of design drawings, and the minimum width of the bottom of the groove is more than or equal to 1100mm of the diameter of the pipeline;
(4) water-closing test: the pipeline is qualified in appearance inspection and acceptance, qualified in internal inspection, and subjected to a water closing test after being cleaned and accepted; the water closing test adopts a sectional test, the separation length of a pipeline is not more than 1000m, the water seepage observation time is not less than 30min, and the test pressure is the upstream designed water head plus 2 meters;
(5) backfilling the groove: and after the pipeline water-closing test is qualified, backfilling the groove, backfilling to the pipe diameter height which is one time more than the top of the pipe, backfilling the two sides of the pipeline symmetrically at the same time, manually backfilling from the bottom of the pipe to the top of the pipe within 0.5m, backfilling the groove from the bottom of the pipe to the top of the pipe within 0.5m, and tamping.
Example 3
(1) Lofting measurement: determining the central axis, the elevation and the side line of a pipeline groove according to a construction drawing, arranging small wooden piles at the side line of the lofted pipeline groove, arranging central piles at intervals of 20 meters, drawing a longitudinal section diagram of the pipeline groove, checking the construction drawing, investigating the existing pipeline in a construction range, making pipeline protection measures, and inspecting the construction pipe by adopting a sampling inspection method; the method comprises the following steps of (1) detecting and matching open trench excavation and an address radar detector for a construction area, detecting the specific buried depth and the specific direction of the underground, carrying out settlement and horizontal displacement observation on the existing pipeline to carry out existing pipeline investigation, properly processing the existing pipeline investigation without construction contradiction with the plane and the elevation pipeline of the existing related pipeline, marking underground pipelines which influence construction and are influenced by construction on a construction general plane layout diagram, and carrying out construction protection work;
(2) digging a groove: after the pipeline is positioned, measured and paid off, excavating in a mode of combining manpower and machinery according to a section diagram of the earthwork excavation; adopting manual excavation and leveling when mechanical excavation is carried out until the designed elevation is 300mm, avoiding the over-excavation phenomenon, if the over-excavation exists, adopting medium sand or stone chips for backfilling, and using a flat vibrator for compacting, and reducing the disturbance or damage of the soil at the bottom of the tank;
(3) installing a pipeline: after the pipeline groove is qualified, adopting the replacement and filling gravel sand to process the pipeline foundation, and then laying and installing the pipeline; the pipe is made of HDPE double-corrugated pipes, and the pipe joints are connected in a supporting mode (DN is less than or equal to 500mm) and in an electric melting mode (DN is greater than or equal to 600 mm); the mechanical excavation is carried out for 70 percent, the manual assistance is matched for 30 percent, the height and the axis of the bottom of the excavated groove meet the requirements of design drawings, and the minimum width of the bottom of the groove is more than or equal to 1100mm of the diameter of the pipeline;
(4) water-closing test: the pipeline is qualified in appearance inspection and acceptance, qualified in internal inspection, and subjected to a water closing test after being cleaned and accepted; the water closing test adopts a sectional test, the separation length of a pipeline is not more than 1000m, the water seepage observation time is not less than 30min, and the test pressure is the upstream designed water head plus 2 meters;
(5) backfilling the groove: and after the pipeline water-closing test is qualified, backfilling the groove, backfilling to the pipe diameter height which is one time more than the top of the pipe, backfilling the two sides of the pipeline symmetrically at the same time, manually backfilling from the bottom of the pipe to the top of the pipe within 0.5m, backfilling the groove from the bottom of the pipe to the top of the pipe within 0.5m, and tamping.
The invention reasonably arranges the construction flow, has reasonable working procedures, convenient construction and high working efficiency, reduces reworking and nest work, avoids accidentally damaging the existing underground pipelines and has reliable construction quality.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The construction process of the outdoor drainage pipeline is characterized by comprising the following steps of:
(1) lofting measurement: determining the central axis, the elevation and the side line of the pipeline groove, arranging small wooden piles at the side line of the lofted pipeline groove, arranging central piles at certain intervals, drawing a longitudinal section diagram of the pipeline groove, checking a construction drawing, investigating the existing pipeline in a construction range, making pipeline protection measures, and checking the construction pipes;
(2) digging a groove: after the pipeline is positioned, measured and paid off, excavating according to a section diagram of the earthwork excavation;
(3) installing a pipeline: after the pipeline groove is qualified, processing a pipeline foundation, and then laying and installing a pipeline;
(4) water-closing test: the pipeline is qualified in appearance inspection and acceptance, qualified in internal inspection, and subjected to a water closing test after being cleaned and accepted;
(5) backfilling the groove: and after the pipeline water-closing test is qualified, backfilling and tamping the groove.
2. The construction process of the outdoor drainage pipeline according to claim 1, wherein the step (1) adopts open trench exploration and geological radar detection instrument detection cooperation to the construction range, the specific burial depth and trend of the existing underground pipeline are explored, settlement and horizontal displacement observation are carried out on the existing pipeline, underground pipelines which influence construction and are influenced by construction are marked on the construction general plane layout, and construction protection work is well carried out.
3. The construction process of the outdoor drainage pipeline according to claim 1, wherein the quality of the pipe for construction is inspected by adopting a visual inspection method and a sampling inspection method in the step (1).
4. The outdoor drainage pipeline construction process according to claim 1, wherein in the step (2), excavation is carried out in a mode of combining manpower and machinery, the machinery carries out 70% excavation, the assistance of the manpower is 30%, the height and the axis of the bottom of an excavated groove meet the requirements, and the minimum width of the bottom of the groove is more than or equal to 1100mm of the diameter of an installed pipeline.
5. The construction process of the outdoor drainage pipeline according to claim 1, wherein the pipeline foundation treatment in the step (3) is performed by adopting methods of stirring piles, throwing and filling rock blocks and replacing and filling broken stone sand.
6. The construction process of the outdoor drainage pipeline according to claim 1, wherein the water closing test in the step (4) adopts a sectional test, the separation length of the pipeline is not more than 1000m, the water seepage observation time is not less than 30min, and the test pressure is the upstream designed water head plus 2 meters.
7. The construction process of an outdoor drainage pipeline according to claim 1, wherein in the step (5), the groove is backfilled to a height which is one time of the pipe diameter above the top of the pipe, the two sides of the pipeline are backfilled symmetrically at the same time, the artificial backfilling is carried out within a range from the base part of the bottom of the pipe to the top of the pipe by 0.5m, and the groove backfilling within a range from the base part of the bottom of the pipe to the top of the pipe by using a stone chip material.
8. The outdoor drainage pipeline construction process according to claim 1, wherein in the step (1), central piles are arranged every 20 meters.
9. The construction process of an outdoor drainage pipeline according to claim 1, wherein in the step (2), excavation is performed in a manner of combining manpower and machinery according to a section diagram of earthwork excavation, manual excavation and leveling are performed when mechanical excavation is performed to reach a design elevation of 200mm and 300mm, the super-excavated part is backfilled by medium sand or stone chips, and a flat vibrator is used for compacting.
10. The construction process of an outdoor drainage pipeline according to claim 1, wherein in the step (3), the pipe material is HDPE double-corrugated pipe, and the pipe joint is connected in a connection manner by adopting a connection manner of a bearing type and an electric melting type.
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| CN202110980750.XA CN113585426A (en) | 2021-08-25 | 2021-08-25 | Construction process of outdoor drainage pipeline |
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| CN202110980750.XA CN113585426A (en) | 2021-08-25 | 2021-08-25 | Construction process of outdoor drainage pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114108776A (en) * | 2021-12-23 | 2022-03-01 | 北京城建集团有限责任公司 | Sewage pipeline construction method |
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|---|---|---|---|---|
| JPH09317383A (en) * | 1996-05-31 | 1997-12-09 | Komatsu Ltd | Method for burying main pipe and branch pipe in buried pipe |
| CN106978843A (en) * | 2017-04-25 | 2017-07-25 | 杭州之江市政建设有限公司 | Municipal drainage pipeline construction technology |
| CN107587557A (en) * | 2017-09-27 | 2018-01-16 | 广东景源建设工程有限公司 | Outdoor water engineering construction method |
| CN110593375A (en) * | 2019-08-29 | 2019-12-20 | 上海景铭建设发展有限公司 | Pipe burying construction method for pipeline by adopting digging groove |
| KR102186630B1 (en) * | 2020-08-18 | 2020-12-03 | 청원건설(주) | Water and sewage construction method |
| CN112227499A (en) * | 2020-10-24 | 2021-01-15 | 安徽宸昊工程设计有限公司 | Municipal drainage pipeline construction technology |
-
2021
- 2021-08-25 CN CN202110980750.XA patent/CN113585426A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09317383A (en) * | 1996-05-31 | 1997-12-09 | Komatsu Ltd | Method for burying main pipe and branch pipe in buried pipe |
| CN106978843A (en) * | 2017-04-25 | 2017-07-25 | 杭州之江市政建设有限公司 | Municipal drainage pipeline construction technology |
| CN107587557A (en) * | 2017-09-27 | 2018-01-16 | 广东景源建设工程有限公司 | Outdoor water engineering construction method |
| CN110593375A (en) * | 2019-08-29 | 2019-12-20 | 上海景铭建设发展有限公司 | Pipe burying construction method for pipeline by adopting digging groove |
| KR102186630B1 (en) * | 2020-08-18 | 2020-12-03 | 청원건설(주) | Water and sewage construction method |
| CN112227499A (en) * | 2020-10-24 | 2021-01-15 | 安徽宸昊工程设计有限公司 | Municipal drainage pipeline construction technology |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114108776A (en) * | 2021-12-23 | 2022-03-01 | 北京城建集团有限责任公司 | Sewage pipeline construction method |
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Application publication date: 20211102 |
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