CN106565021B - Pipeline construction method for ecological wetland - Google Patents
Pipeline construction method for ecological wetland Download PDFInfo
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- CN106565021B CN106565021B CN201610941662.8A CN201610941662A CN106565021B CN 106565021 B CN106565021 B CN 106565021B CN 201610941662 A CN201610941662 A CN 201610941662A CN 106565021 B CN106565021 B CN 106565021B
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- 238000010276 construction Methods 0.000 title claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 212
- 238000012360 testing method Methods 0.000 claims abstract description 5
- 239000002689 soil Substances 0.000 claims description 24
- 239000002023 wood Substances 0.000 claims description 23
- 239000004576 sand Substances 0.000 claims description 15
- 238000009412 basement excavation Methods 0.000 claims description 14
- 239000000565 sealant Substances 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 239000011435 rock Substances 0.000 claims description 3
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000005553 drilling Methods 0.000 claims description 2
- 239000012535 impurity Substances 0.000 claims description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Inorganic materials [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 2
- 235000010333 potassium nitrate Nutrition 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims 2
- 238000009434 installation Methods 0.000 abstract description 24
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000007689 inspection Methods 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
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- 239000002360 explosive Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
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- 150000004767 nitrides Chemical class 0.000 description 1
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- 230000000737 periodic effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/006—Water distributors either inside a treatment tank or directing the water to several treatment tanks; Water treatment plants incorporating these distributors, with or without chemical or biological tanks
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
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- Biodiversity & Conservation Biology (AREA)
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Abstract
The invention discloses a pipeline construction method for an ecological wetland, which comprises the following steps: (a) measuring and paying off; (b) excavating a groove and pouring concrete in the groove; (c) installing a lower layer water conduit; (d) mounting a fixed frame; (e) arranging a buckle component; (f) installing an upper-layer drain pipe; (g) a water-closing test; (h) and (6) backfilling the trench. According to the invention, the water diversion pipes and the water drainage pipes are installed in a vertically layered manner, so that water diversion work from the water diversion pipes to the ecological wetland is realized, and water drainage work from the ecological wetland is realized by the water drainage pipes, so that the occupied construction area of the water diversion pipes and the water drainage pipes is reduced, the construction cost is reduced, and the construction efficiency is improved. During the installation of leading water pipe and drain pipe, because the special construction of buckle, the lower half and the leading water pipe of buckle laminate each other, and the first half and the drain pipe of buckle laminate each other for leading water pipe and drain pipe installation rate, constitute a whole with leading water pipe, drain pipe and buckle moreover, improve the installation quality of leading water pipe and drain pipe.
Description
Technical Field
The invention belongs to the technical field of ecological wetland construction, and particularly relates to a pipeline construction method for an ecological wetland.
Background
At present, aiming at the treatment of 'black and odorous' water, a plurality of ecological wetland treatment technologies are provided, and the artificial ecological wetland is a composite process combining natural purification and artificial reinforcement, can adapt to the natural purification and artificial reinforcement on a proper scale according to the amount of sewage, and improves the water quality of the water by utilizing the purification effect of the ecological wetland so as to eliminate the black and odorous water. Compared with the traditional secondary biochemical treatment, the artificial ecological wetland has the advantages of low construction and operation cost, simple maintenance, good effluent quality, strong adaptability to load change and the like, and is more suitable for the sewage treatment of towns or villages with low technical management level and small scale. On the premise of promoting the virtuous cycle of pollutants in the wastewater, the production potential of resources can be fully exerted, and the re-pollution of the environment is prevented, so that the best benefits of sewage treatment and resource utilization are obtained, and the research and the application are more and more extensive.
In the ecological wetland construction process, in order to reduce ecological wetland self pollution degree, take diversion measure to improve the quality of water, play the purification effect, when the diversion reaches the certain degree, the waterlogging phenomenon appears easily in ecological wetland, just need carry out drainage work to it, adopt the leading water pipe to carry out diversion work toward ecological wetland at present, adopt the drain pipe to carry out drainage work with ecological wetland, make the water level of ecological wetland keep steady basically, but the construction engineering of leading water pipe and the construction engineering of drain pipe divide two projects to be under construction at present, it is great to occupy construction area, construction cost is higher.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art and provides a pipeline construction method for an ecological wetland, wherein a water conduit and a water drain pipe are installed in a vertically layered manner, so that water is drawn to the ecological wetland by the water conduit, and water is drained from the ecological wetland by the water drain pipe, so that the water drawing work of the water conduit and the water draining work of the water drain pipe are not influenced by each other, the occupied construction area of the water conduit and the water drain pipe is reduced, the construction cost is reduced, and the construction efficiency is improved; during installation of the water diversion pipe and the water drainage pipe, due to the special structure of the buckles, the lower half parts of the buckles are mutually attached to the water diversion pipe, the upper half parts of the buckles are mutually attached to the water drainage pipe, the installation speed of the water diversion pipe and the water drainage pipe can be accelerated, sealant is coated at the joint of the lower half parts of the buckles and the water diversion pipe, the joint of the upper half parts of the buckles and the water drainage pipe is coated with the sealant, meanwhile, a metal connecting piece is installed between every two adjacent buckles, the water diversion pipe, the water drainage pipe and the buckles are combined into a whole, the influence of backfilled soil on the installation of the water diversion pipe and the water drainage pipe; after leading water pipe and drain pipe installation, the power that leading water pipe and drain pipe received can transmit the mount through the buckle on, during the mount shared the soil with the power that receives, increases the stability after leading water pipe and drain pipe installation, improves leakproofness behind leading water pipe and the drain pipe installation.
In order to solve the technical problems, the invention adopts the following technical scheme:
a pipeline construction method for an ecological wetland is characterized by comprising the following steps:
(a) measuring and paying off;
(b) digging a groove and pouring concrete in the groove: excavating a groove according to the lofting width, excavating by mutually matching manpower and machinery, wherein the soil excavation sequence is deep first and then shallow, soil excavated at the bottom is compacted at the side slope of the groove in the excavation process, the slope of the excavation slope of the groove is in accordance with the designed standard slope, and then according to the length of the pipe section of the water conduit, measuring the support distribution points of the water conduit on two sides of the groove, transversely inserting at least four wood blocks at the support distribution points, marking the support position of the water conduit, supporting a concrete pouring template at the support position of the water conduit, clamping the concrete pouring template on the wood block, nailing tightly with nails, backfilling soil between the concrete pouring template and the side slope of the groove, then pouring concrete in the concrete pouring template, curing the poured concrete for 10-15 days, and nailing a wooden cushion block into the concrete;
(c) installing a lower diversion pipe: filling a sand cushion layer at the bottom of the groove, controlling the thickness of the sand cushion layer to be between 20 and 30cm, combining a mechanical mode and a manual mode to lower the pipe, mainly hoisting by a crane, manually adjusting to be auxiliary, paving the water diversion pipe sections section by section, correcting the positions of the water diversion pipe sections, controlling the flatness deviation of the lower layer water diversion pipe to be within +/-10 mm, removing sundries in the water diversion pipe sections, and then installing the water diversion pipe in the water flow direction of the socket along the water flow direction and in the water flow direction of the socket;
(d) installing a fixing frame: nailing the wood plate onto the wood cushion block, when fixing the wood plate, padding a gasket between the wood plate and the wood cushion block, keeping the wood plate vertically downwards arranged, then transversely arranging a fixing rod between the wood plates according to the arrangement height of the lower layer water conduit, and drilling holes in advance by using the fixing rod according to a design drawing;
(e) setting a buckle component: clamping the lower half parts of the buckles on the pipe body of the water conduit at the lower layer, coating sealant at the joint of the lower half parts of the buckles and the pipe body, introducing a filling block between every two adjacent buckles, clamping a metal piece on the filling block in a groove of the buckle, introducing a fixing bolt between a fixing rod and the filling block, coating the sealant at the joint of the filling block and the buckle, and mounting a metal connecting piece between every two adjacent buckles;
(f) installing an upper-layer drain pipe: cleaning the upper half part of the buckle, padding an anti-slip pad, tying two ends of a drain pipe section by using a rope, hoisting the drain pipe section, placing the drain pipe section into the upper half part of the buckle section by section, removing impurities in the drain pipe section, installing a drain pipe in a socket direction against a water flow direction according to a socket direction, and coating a sealant on a seam between the upper half part of the buckle and the pipe body;
(g) water-closing test: arranging a water pump in the ecological wetland, connecting the water pump with an upper layer of water drainage pipe, arranging a filter at a water diversion inlet, connecting the filter with a lower layer of water drainage pipe, conducting water diversion operation on the lower layer of water drainage pipe, conducting water drainage operation on the upper layer of water drainage pipe, and observing water seepage conditions of the upper layer of water drainage pipe and the lower layer of water drainage pipe;
(h) and (6) backfilling the trench.
Further, the step (a) is specifically to loft the water conduit according to a construction drawing, a timber pile is driven every 15-20m when the center line is set, the guide piles are manufactured on two sides, the center line is played by white rock saltpeter, the original ground elevation is measured by using a leveling point, the excavation depth and the gradient are calculated, marks are marked, and then the design positions of the water conduit and the water drainage pipe are set according to the lofting position.
Further, in the step (b), the slope gradient of the groove is controlled by adopting a measuring tape with the length of at least 6m, and the slope gradient of the groove is measured every 5m along the length direction of the groove.
And (c) further, in the step (b), drainage work is carried out during trench excavation, the depth of the underground water level lower than the deepest base is kept to be 0.2-0.4m, and soil is filled and compacted at the position with more accumulated water.
Further, in the step (c), the sand used for the sand cushion layer is controlled to have a particle size of 2-20 mm.
Further, in the step (c), in the installation of the water conduit, an iron wire ring is adopted to wind the body of the water conduit, and the two ends of the iron wire ring are inserted into the sand cushion layer.
Further, in the step (f), before the drain pipe section is hoisted, the side face of the upper half part of the buckle is welded with the lengthened section, the shape of the lengthened section is the same as that of the upper half part of the buckle, the anti-skid pad is arranged on the lengthened section, and the reinforcing block is welded between the bottom of the lengthened section and the bottom of the upper half part of the buckle.
Further, in the step (h), the compactness of the soil backfilled at the lower layer water conduit is controlled to be more than 85%, and the compactness of the soil backfilled at the upper layer water conduit is controlled to be more than 80%.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. according to the invention, the water diversion pipe and the water drainage pipe are installed in a vertically layered manner, so that water diversion work of the water diversion pipe to the ecological wetland is realized, the introduced water quality is filtered by adopting the filter in the water diversion process, the purity of the introduced water quality is improved, the water drainage work of the ecological wetland is carried out by adopting the water drainage pipe, the water diversion work of the water diversion pipe and the water drainage work of the water drainage pipe are not influenced mutually, the occupied construction area of the water diversion pipe and the water drainage pipe is reduced, the construction cost is reduced, and the construction efficiency is improved.
2. In the installation of the water conduit and the drain pipe, because of the special structure of the buckles, the lower half parts of the buckles are mutually attached to the water conduit, the upper half parts of the buckles are mutually attached to the drain pipe, the installation speed of the water conduit and the drain pipe can be accelerated, the joint between the lower half parts of the buckles and the water conduit is coated with the sealant, the joint between the upper half parts of the buckles and the drain pipe is coated with the sealant, meanwhile, the metal connecting piece is arranged between every two adjacent buckles, the water conduit, the drain pipe and the buckles form a whole, the influence of backfilled soil on the installation of the water conduit and the drain pipe is reduced, and the installation quality of the water conduit and the drain pipe.
3. After the water conduit and the drain pipe are installed, the force applied to the water conduit and the drain pipe can be transmitted to the fixing frame through the buckle, the fixing frame shares the applied force to the soil, the stability of the installed water conduit and the installed drain pipe is improved, and the sealing performance of the installed water conduit and the installed drain pipe is improved.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural view illustrating a pipeline construction process according to the present invention;
FIG. 2 is a schematic view of the structure of the fixing frame of the present invention during installation;
FIG. 3 is a schematic view of the structure of the buckle of the present invention;
FIG. 4 is a schematic structural view of two adjacent snaps in the present invention;
FIG. 5 is a schematic structural diagram of a filling block according to the present invention;
FIG. 6 is a schematic structural view of the lower drainage pipe and the upper drainage pipe of the present invention after installation.
In the figure, 1-the drain pipe; 2-a water conduit; 3-wood board; 4-fixing the rod; 5-buckling; 51-a groove; 6-metal connectors; 7-a filling block; 8-metal piece.
Detailed Description
As shown in fig. 1 to 6, the pipeline construction method for the ecological wetland of the present invention comprises the following steps:
(a) and (3) measurement and paying-off: and (4) lofting the water conduit according to construction drawings, driving a timber pile every 15-20m when the center line is determined, and manufacturing guide piles at two sides. And then, discharging the white rock nitride from the central line, measuring the original ground elevation by using the leveling point, calculating the excavation depth and the gradient, and marking out marks. Then, according to the lofting position, the design positions of the water diversion pipe and the water drainage pipe are determined.
(b) Digging a groove and pouring concrete in the groove: and excavating the groove according to the lofting width, and excavating by mutually matching manpower and machinery, wherein the excavation sequence is deep firstly and then shallow. And compacting soil excavated at the bottom at the side slope of the groove in the excavation process, enabling the slope of the excavated side slope of the groove to meet the designed standard slope, controlling the slope of the side slope of the groove by adopting a measuring tape with the length of at least more than 6m, and measuring the slope of the side slope of the groove every 5m along the length direction of the groove. And (3) draining water during trench excavation, keeping the depth of the underground water level lower than the deepest base by 0.2-0.4m, filling soil at a position with more accumulated water, and compacting.
Measuring the support distribution points of the water conduit on two sides of the groove according to the length of the pipe section of the water conduit, transversely inserting at least four wood blocks at the support distribution points, marking the support positions of the water conduit, supporting a concrete pouring template at the support positions of the water conduit, clamping the concrete pouring template on the wood blocks, nailing by nails, backfilling soil between the concrete pouring template and the side slope of the groove, pouring concrete in the concrete pouring template, curing the poured concrete for 10-15 days, and nailing wood cushion blocks on the concrete.
(c) Installing a lower diversion pipe 2: and filling a sand cushion layer into the bottom of the groove, wherein the grain diameter of sand adopted by the sand cushion layer is controlled to be 2-20mm, and the thickness of the sand cushion layer is controlled to be 20-30 cm. And then, the pipe is lowered by combining machinery and manpower, the hoisting of a crane is mainly performed, and the manual adjustment is assisted. The water conduit sections are laid section by section, the position of the water conduit sections is corrected, and the flatness deviation of the lower layer water conduit 2 is controlled within +/-10 mm. Then the sundries in the section of the water conduit pipe are removed, and the water conduit pipe 2 is installed according to the direction of the faucet along the water flow direction and the direction of the bell mouth against the water flow direction. In the installation water conduit 2, adopt the iron wire circle winding to live the water conduit body to insert the both ends of iron wire circle in the sand cushion layer.
(d) Installing a fixing frame: on nailing plank 3 into wooden cushion, when fixed plank 3, fill up the gasket between plank 3 and wooden cushion, keep plank 3 perpendicular downward setting, then according to the setting height of lower floor's leading water pipe 2 transversely set up dead lever 4 between plank 3, dead lever 4 drills according to the design drawing in advance. The fixing rod 4 is fixed to the wood plate 3 mainly by a ferrule.
(e) Setting a buckle component: the lower half part of the buckle 5 is clamped on the pipe body of the water conduit 2 at the lower layer, and then sealant is coated on the joint of the lower half part of the buckle 5 and the pipe body. Then, a filling block 7 is introduced between two adjacent buckles 5, the metal piece 8 on the filling block 7 is clamped in the groove 51 of the buckle 5, and a fixing bolt is introduced between the fixing rod 4 and the filling block 7. Then, sealant is coated on the joint of the filling block 7 and the buckle 5, and then the metal connecting piece 6 is installed between two adjacent buckles 5.
(f) Installing an upper-layer drain pipe 1: the upper half part of the buckle 5 is wiped clean, and then the non-slip mat is padded. Before the drain pipe section is hoisted, the side surface of the upper half part of the buckle 5 is welded with the lengthening section, the shape of the lengthening section is the same as that of the upper half part of the buckle 5, the lengthening section is padded with the anti-skid pad, and then the reinforcing block is welded between the bottom of the lengthening section and the bottom of the upper half part of the buckle 5.
Then, two ends of the drain pipe section are tied by using a rope, the drain pipe section is lifted and placed in the upper half part of the buckle 5 section by section, then sundries in the drain pipe section are removed, then the drain pipe 1 is installed on the bell mouth along the water flow direction according to the faucet, the bell mouth is against the water flow direction, and then the sealing glue is coated on the seam between the upper half part of the buckle 5 and the pipe body.
(g) Water-closing test: arranging a water pump in the ecological wetland, connecting the water pump with an upper-layer water drainage pipe 1, arranging a filter at a water diversion inlet, connecting the filter with a lower-layer water drainage pipe 2, conducting water diversion operation on the lower-layer water drainage pipe 2, conducting drainage operation on the upper-layer water drainage pipe 1, and observing water seepage conditions of the upper-layer water drainage pipe 1 and the lower-layer water drainage pipe 2;
(h) backfilling the groove: and adopting the abandoned soil to backfill the groove, wherein the compactness of the soil backfilled at the lower layer water conduit 2 is controlled to be more than 85 percent, and the compactness of the soil backfilled at the upper layer water conduit 1 is controlled to be more than 80 percent.
According to the invention, the water diversion pipe 2 and the water drainage pipe 1 are installed in a vertically layered manner, so that water diversion work of the water diversion pipe 2 to the ecological wetland is realized, the introduced water quality is filtered by adopting a filter in the water diversion process, the purity of the introduced water quality is improved, the water drainage work of the ecological wetland is performed by adopting the water drainage pipe 1, the water diversion work of the water diversion pipe 2 and the water drainage work of the water drainage pipe 1 are not influenced mutually, the occupied construction area of the water diversion pipe 2 and the water drainage pipe 1 is reduced, the construction cost is reduced, and the construction efficiency is improved. In the installation of the water diversion pipe 2 and the drain pipe 1, due to the special structure of the buckle 5, the lower half part of the buckle 5 is mutually jointed with the water diversion pipe 2, the upper half part of the buckle 5 is mutually jointed with the drain pipe 1, the installation speed of the water diversion pipe 2 and the drain pipe 1 can be accelerated, the joint between the lower half part of the buckle 5 and the water diversion pipe 2 is coated with sealant, the joint between the upper half part of the buckle 5 and the drain pipe 1 is coated with sealant, meanwhile, a metal connecting piece 6 is arranged between two adjacent buckles 5, the water diversion pipe 2, the drain pipe 1 and the buckle 5 are integrated, the influence of backfilling soil on the installation of the water diversion pipe 2 and the drain pipe 1 is reduced, and the installation quality of the water diversion pipe 2 and the. After the water diversion pipe 2 and the drain pipe 1 are installed, the force borne by the water diversion pipe 2 and the drain pipe 1 can be transmitted to the fixing frame through the buckle 5, the fixing frame shares the borne force to the soil, the stability of the installed water diversion pipe 2 and the installed drain pipe 1 is improved, and the sealing performance of the installed water diversion pipe 2 and the installed drain pipe 1 is improved.
Safety measures
1. Establishment of safety production technical measure system
The project manager establishes safety production technical measures which are targeted. The programmed measures are approved by a project headquarter engineer, and the measures programmed by the project department are approved by a company headquarter engineer.
2. Safety technology bottom-crossing system
The constructors deal with each group, each professional construction responsible person and each professional technical responsible person layer by layer. The bottom of the deal has text data, and the content requirement is comprehensive, specific and strong in pertinence. Both the transaction initiator and the recipient should sign the transaction data and note the date of receipt.
(1) The special work species and workers implement the system of certificate of possession and job application
The method is used for carrying out certified post on special work types such as electricians, electric welders, hoisting and hoisting workers, mechanical operators and the like, and no person can carry out the work types.
(2) Safety inspection system
The project department carries out safety inspection periodically every week and carries out non-periodic inspection at ordinary times, each inspection needs to be recorded, and the hidden danger of the inspected accident needs to be corrected periodically. And giving economic penalties to units or parties who are not reformed according to requirements until the whole time of shutdown.
(3) Safety acceptance system
After the large and medium-sized machinery installation, the electrical line erection and other projects are finished, the large and medium-sized machinery installation and the electrical line erection are required to be checked and accepted by relevant departments, and then the large and medium-sized machinery installation and the electrical line erection are ready for test run or put into use.
(4) Contract system for safety production
The project manager and the company sign a safe production responsibility book, each construction team and the project department sign a safe production contract, the operation worker and the construction team sign a safe production contract and sign a safe production oath; the safety responsibility and safety consciousness of leaders and staff at all levels are strengthened by using contracts and oath, and the safety protection consciousness of the leaders and the staff is strengthened.
(5) Accident handling 'four-free system'
The security accident occurs, and must be strictly checked and taken. The accident causes are unknown, the responsibility is unclear, the responsibility persons are not educated, and no preventive measures or measures are left unadulterated.
Seasonal construction
1. Before and after heavy wind and heavy rain, temporary facilities, electromechanical equipment and temporary circuits of a construction site need to be checked, phenomena of inclination, deformation, sinking, rain leakage, electric leakage and the like are found, the construction should be repaired and reinforced in time, serious danger exists, the construction is stopped immediately, and the danger is eliminated.
2. A temporary lightning arrester is arranged in an inflammable and explosive warehouse and the like, and rain-proof and moisture-proof facilities are required for an electrical switch of electromechanical equipment.
3. On-site road maintenance should be enhanced.
4. In the high-temperature operation places, ventilation and cooling measures are enhanced.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made based on the present invention to solve the same technical problems and achieve the same technical effects are within the scope of the present invention.
Claims (7)
1. A pipeline construction method for an ecological wetland is characterized by comprising the following steps:
(a) measuring and paying off;
(b) digging a groove and pouring concrete in the groove: excavating a groove according to the lofting width, excavating by mutually matching manpower and machinery, wherein the soil excavation sequence is deep first and then shallow, soil excavated at the bottom is compacted at the side slope of the groove in the excavation process, the slope of the excavation slope of the groove is in accordance with the designed standard slope, and then according to the length of the pipe section of the water conduit, measuring the support distribution points of the water conduit on two sides of the groove, transversely inserting at least four wood blocks at the support distribution points, marking the support position of the water conduit, supporting a concrete pouring template at the support position of the water conduit, clamping the concrete pouring template on the wood block, nailing tightly with nails, backfilling soil between the concrete pouring template and the side slope of the groove, then pouring concrete in the concrete pouring template, curing the poured concrete for 10-15 days, and nailing a wooden cushion block into the concrete;
(c) installing a lower diversion pipe: filling a sand cushion layer at the bottom of the groove, controlling the thickness of the sand cushion layer to be between 20 and 30cm, combining a mechanical mode and a manual mode to lower the pipe, mainly hoisting by a crane, manually adjusting to be auxiliary, paving the water diversion pipe sections section by section, correcting the positions of the water diversion pipe sections, controlling the flatness deviation of the lower layer water diversion pipe to be within +/-10 mm, removing sundries in the water diversion pipe sections, and then installing the water diversion pipe in the water flow direction of the socket along the water flow direction and in the water flow direction of the socket;
(d) installing a fixing frame: nailing the wood plate onto the wood cushion block, when fixing the wood plate, padding a gasket between the wood plate and the wood cushion block, keeping the wood plate vertically downwards arranged, then transversely arranging a fixing rod between the wood plates according to the arrangement height of the lower layer water conduit, and drilling holes in advance by using the fixing rod according to a design drawing;
(e) setting a buckle component: clamping the lower half parts of the buckles on the pipe body of the water conduit at the lower layer, coating sealant at the joint of the lower half parts of the buckles and the pipe body, introducing a filling block between every two adjacent buckles, clamping a metal piece on the filling block in a groove of the buckle, introducing a fixing bolt between a fixing rod and the filling block, coating the sealant at the joint of the filling block and the buckle, and mounting a metal connecting piece between every two adjacent buckles;
(f) installing an upper-layer drain pipe: cleaning the upper half part of the buckle, padding an anti-slip pad, tying two ends of a drain pipe section by using a rope, hoisting the drain pipe section, placing the drain pipe section into the upper half part of the buckle section by section, removing impurities in the drain pipe section, installing a drain pipe in a socket direction against a water flow direction according to a socket direction, and coating a sealant on a seam between the upper half part of the buckle and the pipe body; before the drain pipe section is hoisted, welding an elongated section on the side surface of the upper half part of the buckle, wherein the shape of the elongated section is the same as that of the upper half part of the buckle, padding an anti-skid pad on the elongated section, and welding a reinforcing block between the bottom of the elongated section and the bottom of the upper half part of the buckle;
(g) water-closing test: arranging a water pump in the ecological wetland, connecting the water pump with an upper layer of water drainage pipe, arranging a filter at a water diversion inlet, connecting the filter with a lower layer of water drainage pipe, conducting water diversion operation on the lower layer of water drainage pipe, conducting water drainage operation on the upper layer of water drainage pipe, and observing water seepage conditions of the upper layer of water drainage pipe and the lower layer of water drainage pipe;
(h) and (6) backfilling the trench.
2. The pipeline construction method for the ecological wetland according to claim 1, characterized in that: the step (a) is to perform lofting on the water conduit according to a construction drawing, drive a timber pile every 15-20m when the central line is fixed, make the guide piles on two sides, discharge the central line by white rock saltpeter, measure the original ground elevation by using the leveling point, calculate the excavation depth and gradient, mark out marks, and then determine the design positions of the water conduit and the water drainage pipe according to the lofting position.
3. The pipeline construction method for the ecological wetland according to claim 1, characterized in that: in the step (b), the slope gradient of the groove is controlled by adopting a measuring tape with the length of at least 6m, and the slope gradient of the groove is measured every 5m along the length direction of the groove.
4. The pipeline construction method for the ecological wetland according to claim 1, characterized in that: and (b) draining water during trench excavation, keeping the depth of the underground water level lower than the deepest base by 0.2-0.4m, filling soil at a position with more accumulated water, and compacting.
5. The pipeline construction method for the ecological wetland according to claim 1, characterized in that: in the step (c), the grain diameter of the sand adopted by the sand cushion is controlled to be 2-20 mm.
6. The pipeline construction method for the ecological wetland according to claim 1, characterized in that: and (c) installing the water conduit, winding the water conduit body by adopting an iron wire ring, and inserting two ends of the iron wire ring into the sand cushion layer.
7. The pipeline construction method for the ecological wetland according to claim 1, characterized in that: in the step (h), the compactness of the soil backfilled at the lower layer water conduit is controlled to be more than 85 percent, and the compactness of the soil backfilled at the upper layer water conduit is controlled to be more than 80 percent.
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| CN201610941662.8A CN106565021B (en) | 2016-11-01 | 2016-11-01 | Pipeline construction method for ecological wetland |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6120209A (en) * | 1995-06-05 | 2000-09-19 | Dixie Septic Tank, Inc. Of Orange City | Method of installing drainfield pipe |
| CN1580421A (en) * | 2003-08-11 | 2005-02-16 | 陈瑞文 | Environmentally-friendly ecological soil and water conservating construction method |
| CN101565964A (en) * | 2009-05-25 | 2009-10-28 | 青岛恒生源集团建设有限公司 | Construction method for mounting outdoor embedded high-density polyethylene double-wall corrugated drain pipe |
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2016
- 2016-11-01 CN CN201610941662.8A patent/CN106565021B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6120209A (en) * | 1995-06-05 | 2000-09-19 | Dixie Septic Tank, Inc. Of Orange City | Method of installing drainfield pipe |
| CN1580421A (en) * | 2003-08-11 | 2005-02-16 | 陈瑞文 | Environmentally-friendly ecological soil and water conservating construction method |
| CN101565964A (en) * | 2009-05-25 | 2009-10-28 | 青岛恒生源集团建设有限公司 | Construction method for mounting outdoor embedded high-density polyethylene double-wall corrugated drain pipe |
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