CN105971055A - Clean construction method for urban secondary water supply - Google Patents

Abstract

The invention relates to a clean construction method for urban secondary water supply. The clean construction method is characterized by including the following steps of material management, material acceptance, on-site material storage, installation and construction, groove construction, grading acceptance check and completion of pipe flushing. The construction method is adaptive to various environments to carry out construction of secondary water supply, cleanness of water supply is ensured, water supply quality is improved, and the service life of water supply pipelines is prolonged. The clean construction method has the advantages of saving resources and being convenient in construction, low in difficulty, particularly suitable for application and popularization in the field and wide in market prospect.

Description

A kind of city secondary water-supply clean construction method

Technical field

The present invention relates to a kind of city secondary water-supply clean construction method.

Background technology

At present, when the secondary water-supply of urban water supply is constructed, durability and the normal service life of management when that construction not meeting specification, are frequently resulted in.Further drinking quality there is impact.And the substantial amounts of engineerings such as requirement of engineering excavation, perfusion, cause that long construction period, security risk are high, workload is big, construction cost is high, therefore need now the construction method that a kind of novel secondary that can solve the problem that the problems referred to above supplies water.Reach basic demand and standard that secondary water-supply clean construction should reach.

Summary of the invention

It is an object of the invention to provide a kind of city secondary water-supply clean construction method.

The technical solution adopted for the present invention to solve the technical problems is: a kind of city secondary water-supply clean construction method, it is characterised in that: comprise the following steps:

1) management of material:

Construction material stores: the tubing two ends mouth of pipe should use pipe cap to block, use the tubing of pipe cap closure, employing plastic bag sealing is packed, valve and other material use plastic bag sealing packaging, and outer packing box surface should be smooth, clean without spot, should be without damaged, flawless, inwall should totally clean, without dirt, free from extraneous odour, when material transports job site to, project construction personnel must check material packaging, and Proper Packing can be put in storage；

2) acceptance of materials:

Project construction personnel have to check for material packaging before installing, guarantee not use and be not carried out in accordance with regulations packaging or the material of packages in damaged condition, project construction personnel rejection is not carried out in accordance with regulations packaging or the material of packages in damaged condition, every day, installment work terminated, after residue tubing should process cleaning, then block the mouth of pipe with pipe cap；After other surplus material also must process cleaning more neat with plastic bag packaging, put in storage standby；Materials handling, should handle with care when receiving, it is to avoid damage packaging and pollute；

3) on-the-spot material keeping:

Before engineering project goes into operation, project manager should be responsible for implementing storehouse and the place of on-the-spot placing of material, guarantee that material is not contaminated during stacking, storehouse and place periphery should be without hydrops, no-sundries and without other polluter, storehouse should be closed, independence, pollutes to avoid idler to come in and go out, stacks place outside the storehouse of basement and storehouse, terrace should exceed basement ground no less than 30cm, preventing water logging, tubing must use the built on stilts stacking of sleeper, and bottom distance ground is no less than 30cm；It is deposited in above the tubing outside basement storehouse and must also be completely covered by with protective materials such as three painting cloths, other material such as valve must be stacked in storehouse, different cultivars, the material of specification should be classified stacking, material can not be put with stock with inflammable explosive article, chemicals, oil plant and other foreign material, burnisher, transport utility cart and other instrument should clean clean, in order to avoid polluting after using every time；

4) installation

Before construction, project construction personnel must exam piece by piece inside piping component the cleanest, it is ensured that unclean material resolutely refuses to use；As found contaminated materials, could use after must processing totally, during incising pipes, the foreign material such as chip must be cleaned out, forbid falling in pipe, necessary place mat three painting cloth during the splicing operation such as tubing, pipe fitting, prevent the impurity pollution pipelines such as silt particle, clipping room off period, indoor expose the mouth of pipe pipe cap must be used to block；Pipe cap can not be used to block, must block with the Polypropylence Sheet wrapping mouth of pipe, clipping room off period, outdoor expose the mouth of pipe flange closure plate must be used to block, it is ensured that sewage, foreign material must not enter pipeline, when reinstalling after the intermission, have to check for the closure situation of the mouth of pipe, if closure damage causes pipeline opening to be polluted by silt particle etc., it is necessary to be in charge of manager to department and report, work out a scheme process pollution part；If causing whole segment pipe to be polluted by silt particle etc., then must report to line manager, work out a scheme replacing refitting, before external pipe backfill, all mouths of pipe that expose must use valve to block, valve should be at closed mode, the wrapping of valve port application Polypropylence Sheet prevents from polluting, when there is dust job site, scene must be carried out watering and lowering dust process, guarantee without dust, dust pollutes pipeline, discarded material must be handled well by project construction personnel, keep the clean and tidy of building site, the tubing packing crates in bulk used in work progress, plastic bag, three painting cloths keep a public place clean material and other auxiliary material and instrument must keep clean；

5) groove construction

Before construction, project manager should work out Drainage Design, selected water discharge method, drainage equipment, during the construction of rainwater weather, catch pit must be set, groove internal water accumulation must be emptied before Pipe installing, avoid polluting pipeline, before the earthwork below excavation groundwater level, should first build gully, make groundwater level be down to below trench bottom surfaces, 0.5m should be not less than away from trench bottom surfaces, the length of interface position construction foundation pit, width should be advisable with applicable equipment and manual operation, should be less than at the bottom of pipeline 40～50cm bottom foundation ditch, and groove both sides mound and groove back gauge should be greater than 1m；The operation areas such as soft clay area cannot be less than 2m, highly must not exceed 1.5m, and top should tilt laterally, prevents sewage from flowing to groove, construction foundation pit must use three painting cloth place mats, prevents silt particle, impurity pollution pipeline；

6) classification is checked and accepted

Material cleaning rate to every day, pipe plugging rate and pipeline cleaning rate exercise supervision examination, check and accept the shooting recording work that simultaneously should carry out image data, project manager answers every day to storehouse, inspect for acceptance in building site, keep storehouse, building site is clean and tidy, find nonstandard operation, underproof quality, construction department is in charge of manager and necessarily requires project construction personnel to rectify and improve, until specification, qualified, construction department is in charge of the image data of manager's reply project manager's shooting and inspects for acceptance day by day, construction department is in charge of manager and must not be less than the onsite acceptance inspection of each engineering clean construction three times weekly, check and accept content and include material cleaning rate, pipe plugging rate, pipeline cleaning rate, material is packed, store management and installation quality, acceptance criteria is the every regulation of this specification and other pertinent regulations

7) pipe flushing:

After buried pipeline construction, project manager should work out flushing scheme and organize flushing in time, buried pipeline still has the foreign material such as silt particle after repeatedly rinsing, the pipeline that then must more renew is reinstalled, without silt particle foreign material after guaranteeing to rinse, during water quality detection sampling, every buried arm should be at least provided with a sample point, after flushing, system effluent quality has to comply with " drinking water sanitary standard " (GB5749-2006) and " urban water supply water standard " (CJ/T 206-2005).

Beneficial effects of the present invention: this construction method is adapted to implement in various environment the construction of secondary water-supply, ensure that the cleaning of water supply, improve quality of water supply, improve and there is in service life of supply channel the advantages such as saving resource, easy construction, difficulty are little, being particularly suitable for popularization and application in the art, its market prospect is the most wide.

Detailed description of the invention

Embodiment 1, a kind of city secondary water-supply clean construction method, it is characterised in that: comprise the following steps:

1) management of material:

Construction material stores: the tubing two ends mouth of pipe should use pipe cap to block, use the tubing of pipe cap closure, employing plastic bag sealing is packed, valve and other material use plastic bag sealing packaging, and outer packing box surface should be smooth, clean without spot, should be without damaged, flawless, inwall should totally clean, without dirt, free from extraneous odour, when material transports job site to, project construction personnel must check material packaging, and Proper Packing can be put in storage；

2) acceptance of materials:

Project construction personnel have to check for material packaging before installing, guarantee not use and be not carried out in accordance with regulations packaging or the material of packages in damaged condition, project construction personnel rejection is not carried out in accordance with regulations packaging or the material of packages in damaged condition, every day, installment work terminated, after residue tubing should process cleaning, then block the mouth of pipe with pipe cap；After other surplus material also must process cleaning more neat with plastic bag packaging, put in storage standby；Materials handling, should handle with care when receiving, it is to avoid damage packaging and pollute；

3) on-the-spot material keeping:

Before engineering project goes into operation, project manager should be responsible for implementing storehouse and the place of on-the-spot placing of material, guarantee that material is not contaminated during stacking, storehouse and place periphery should be without hydrops, no-sundries and without other polluter, storehouse should be closed, independence, pollutes to avoid idler to come in and go out, stacks place outside the storehouse of basement and storehouse, terrace should exceed basement ground no less than 30cm, preventing water logging, tubing must use the built on stilts stacking of sleeper, and bottom distance ground is no less than 30cm；It is deposited in above the tubing outside basement storehouse and must also be completely covered by with protective materials such as three painting cloths, other material such as valve must be stacked in storehouse, different cultivars, the material of specification should be classified stacking, material can not be put with stock with inflammable explosive article, chemicals, oil plant and other foreign material, burnisher, transport utility cart and other instrument should clean clean, in order to avoid polluting after using every time；

4) installation

Before construction, project construction personnel must exam piece by piece inside piping component the cleanest, it is ensured that unclean material resolutely refuses to use；As found contaminated materials, could use after must processing totally, during incising pipes, the foreign material such as chip must be cleaned out, forbid falling in pipe, necessary place mat three painting cloth during the splicing operation such as tubing, pipe fitting, prevent the impurity pollution pipelines such as silt particle, clipping room off period, indoor expose the mouth of pipe pipe cap must be used to block；Pipe cap can not be used to block, must block with the Polypropylence Sheet wrapping mouth of pipe, clipping room off period, outdoor expose the mouth of pipe flange closure plate must be used to block, it is ensured that sewage, foreign material must not enter pipeline, when reinstalling after the intermission, have to check for the closure situation of the mouth of pipe, if closure damage causes pipeline opening to be polluted by silt particle etc., it is necessary to be in charge of manager to department and report, work out a scheme process pollution part；If causing whole segment pipe to be polluted by silt particle etc., then must report to line manager, work out a scheme replacing refitting, before external pipe backfill, all mouths of pipe that expose must use valve to block, valve should be at closed mode, the wrapping of valve port application Polypropylence Sheet prevents from polluting, when there is dust job site, scene must be carried out watering and lowering dust process, guarantee without dust, dust pollutes pipeline, discarded material must be handled well by project construction personnel, keep the clean and tidy of building site, the tubing packing crates in bulk used in work progress, plastic bag, three painting cloths keep a public place clean material and other auxiliary material and instrument must keep clean；

5) groove construction

Before construction, project manager should work out Drainage Design, selected water discharge method, drainage equipment, during the construction of rainwater weather, catch pit must be set, groove internal water accumulation must be emptied before Pipe installing, avoid polluting pipeline, before the earthwork below excavation groundwater level, should first build gully, make groundwater level be down to below trench bottom surfaces, 0.5m should be not less than away from trench bottom surfaces, the length of interface position construction foundation pit, width should be advisable with applicable equipment and manual operation, should be less than at the bottom of pipeline 40～50cm bottom foundation ditch, and groove both sides mound and groove back gauge should be greater than 1m；The operation areas such as soft clay area cannot be less than 2m, highly must not exceed 1.5m, and top should tilt laterally, prevents sewage from flowing to groove, construction foundation pit must use three painting cloth place mats, prevents silt particle, impurity pollution pipeline；

6) classification is checked and accepted

Material cleaning rate to every day, pipe plugging rate and pipeline cleaning rate exercise supervision examination, check and accept the shooting recording work that simultaneously should carry out image data, project manager answers every day to storehouse, inspect for acceptance in building site, keep storehouse, building site is clean and tidy, find nonstandard operation, underproof quality, construction department is in charge of manager and necessarily requires project construction personnel to rectify and improve, until specification, qualified, construction department is in charge of the image data of manager's reply project manager's shooting and inspects for acceptance day by day, construction department is in charge of manager and must not be less than the onsite acceptance inspection of each engineering clean construction three times weekly, check and accept content and include material cleaning rate, pipe plugging rate, pipeline cleaning rate, material is packed, store management and installation quality, acceptance criteria is the every regulation of this specification and other pertinent regulations

7) pipe flushing:

After buried pipeline construction, project manager should work out flushing scheme and organize flushing in time, buried pipeline still has the foreign material such as silt particle after repeatedly rinsing, the pipeline that then must more renew is reinstalled, without silt particle foreign material after guaranteeing to rinse, during water quality detection sampling, every buried arm should be at least provided with a sample point, after flushing, system effluent quality has to comply with " drinking water sanitary standard " (GB5749-2006) and " urban water supply water standard " (CJ/T 206-2005).

This construction method is adapted to implement in various environment the construction of secondary water-supply, ensure that the cleaning of water supply, improve quality of water supply, improve and there is in service life of supply channel the advantages such as saving resource, easy construction, difficulty are little, being particularly suitable for popularization and application in the art, its market prospect is the most wide.

Above embodiment is only to be described the preferred embodiment of the present invention; not the scope of the present invention is defined; on the premise of designing spirit without departing from the present invention; various deformation that technical scheme is made by this area ordinary skill technical staff and improvement, all should fall in the protection domain that claims of the present invention determines.

Part that the present invention does not relate to is the most same as the prior art maybe can use prior art to be realized.

Claims (1)

1. a city secondary water-supply clean construction method, it is characterised in that: comprise the following steps:

1) management of material:

Construction material stores: the tubing two ends mouth of pipe should use pipe cap to block, use the tubing of pipe cap closure, employing plastic bag sealing is packed, valve and other material use plastic bag sealing packaging, and outer packing box surface should be smooth, clean without spot, should be without damaged, flawless, inwall should totally clean, without dirt, free from extraneous odour, when material transports job site to, project construction personnel must check material packaging, and Proper Packing can be put in storage；

2) acceptance of materials:

Project construction personnel have to check for material packaging before installing, guarantee not use and be not carried out in accordance with regulations packaging or the material of packages in damaged condition, project construction personnel rejection is not carried out in accordance with regulations packaging or the material of packages in damaged condition, every day, installment work terminated, after residue tubing should process cleaning, then block the mouth of pipe with pipe cap；After other surplus material also must process cleaning more neat with plastic bag packaging, put in storage standby；Materials handling, should handle with care when receiving, it is to avoid damage packaging and pollute；

3) on-the-spot material keeping:

Before engineering project goes into operation, project manager should be responsible for implementing storehouse and the place of on-the-spot placing of material, guarantee that material is not contaminated during stacking, storehouse and place periphery should be without hydrops, no-sundries and without other polluter, storehouse should be closed, independence, pollutes to avoid idler to come in and go out, stacks place outside the storehouse of basement and storehouse, terrace should exceed basement ground no less than 30cm, preventing water logging, tubing must use the built on stilts stacking of sleeper, and bottom distance ground is no less than 30cm；It is deposited in above the tubing outside basement storehouse and must also be completely covered by with protective materials such as three painting cloths, other material such as valve must be stacked in storehouse, different cultivars, the material of specification should be classified stacking, material can not be put with stock with inflammable explosive article, chemicals, oil plant and other foreign material, burnisher, transport utility cart and other instrument should clean clean, in order to avoid polluting after using every time；

4) installation

Before construction, project construction personnel must exam piece by piece inside piping component the cleanest, it is ensured that unclean material resolutely refuses to use；As found contaminated materials, could use after must processing totally, during incising pipes, the foreign material such as chip must be cleaned out, forbid falling in pipe, necessary place mat three painting cloth during the splicing operation such as tubing, pipe fitting, prevent the impurity pollution pipelines such as silt particle, clipping room off period, indoor expose the mouth of pipe pipe cap must be used to block；Pipe cap can not be used to block, must block with the Polypropylence Sheet wrapping mouth of pipe, clipping room off period, outdoor expose the mouth of pipe flange closure plate must be used to block, it is ensured that sewage, foreign material must not enter pipeline, when reinstalling after the intermission, have to check for the closure situation of the mouth of pipe, if closure damage causes pipeline opening to be polluted by silt particle etc., it is necessary to be in charge of manager to department and report, work out a scheme process pollution part；If causing whole segment pipe to be polluted by silt particle etc., then must report to line manager, work out a scheme replacing refitting, before external pipe backfill, all mouths of pipe that expose must use valve to block, valve should be at closed mode, the wrapping of valve port application Polypropylence Sheet prevents from polluting, when there is dust job site, scene must be carried out watering and lowering dust process, guarantee without dust, dust pollutes pipeline, discarded material must be handled well by project construction personnel, keep the clean and tidy of building site, the tubing packing crates in bulk used in work progress, plastic bag, three painting cloths keep a public place clean material and other auxiliary material and instrument must keep clean；

5) groove construction

Before construction, project manager should work out Drainage Design, selected water discharge method, drainage equipment, during the construction of rainwater weather, catch pit must be set, groove internal water accumulation must be emptied before Pipe installing, avoid polluting pipeline, before the earthwork below excavation groundwater level, should first build gully, make groundwater level be down to below trench bottom surfaces, 0.5m should be not less than away from trench bottom surfaces, the length of interface position construction foundation pit, width should be advisable with applicable equipment and manual operation, should be less than at the bottom of pipeline 40～50cm bottom foundation ditch, and groove both sides mound and groove back gauge should be greater than 1m；The operation areas such as soft clay area cannot be less than 2m, highly must not exceed 1.5m, and top should tilt laterally, prevents sewage from flowing to groove, construction foundation pit must use three painting cloth place mats, prevents silt particle, impurity pollution pipeline；

6) classification is checked and accepted

Material cleaning rate to every day, pipe plugging rate and pipeline cleaning rate exercise supervision examination, check and accept the shooting recording work that simultaneously should carry out image data, project manager answers every day to storehouse, inspect for acceptance in building site, keep storehouse, building site is clean and tidy, find nonstandard operation, underproof quality, construction department is in charge of manager and necessarily requires project construction personnel to rectify and improve, until specification, qualified, construction department is in charge of the image data of manager's reply project manager's shooting and inspects for acceptance day by day, construction department is in charge of manager and must not be less than the onsite acceptance inspection of each engineering clean construction three times weekly, check and accept content and include material cleaning rate, pipe plugging rate, pipeline cleaning rate, material is packed, store management and installation quality, acceptance criteria is the every regulation of this specification and other pertinent regulations；

7) pipe flushing:

After buried pipeline construction, project manager should work out flushing scheme and organize flushing in time, buried pipeline still has the foreign material such as silt particle after repeatedly rinsing, the pipeline that then must more renew is reinstalled, without silt particle foreign material after guaranteeing to rinse, during water quality detection sampling, every buried arm should be at least provided with a sample point, after flushing, system effluent quality has to comply with " drinking water sanitary standard " (GB5749-2006) and " urban water supply water standard " (CJ/T 206-2005).