CN113863268B - Construction and debugging process for fabricated sewage treatment station of epidemic prevention emergency engineering - Google Patents
Construction and debugging process for fabricated sewage treatment station of epidemic prevention emergency engineering Download PDFInfo
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
- E02D1/02—Investigation of foundation soil in situ before construction work
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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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D11/00—Methods or apparatus specially adapted for both placing and removing sheet pile bulkheads, piles, or mould-pipes
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- 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
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/42—Liquid level
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- Hydrology & Water Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Soil Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Composite Materials (AREA)
- Piles And Underground Anchors (AREA)
- Sewage (AREA)
Abstract
The invention provides a construction and debugging process for an assembled sewage treatment station of epidemic prevention emergency engineering, which comprises four steps of foundation treatment and pre-embedding, tank body installation, connection and fixation, operation debugging and the like, can carry out rapid emergency construction on the assembled sewage treatment station, enables the engineering which originally needs months to be improved to take effect only in tens of days, has popularization value, and can adopt the construction method for rapid assembly when more cities face the construction of an adjacent isolation area.
Description
Technical Field
The invention relates to the technical field of sewage treatment stations, in particular to a construction and debugging process of an assembled sewage treatment station for epidemic prevention emergency engineering.
Background
Under the emergency of an epidemic situation, it is a conventional means to build a temporary isolation area nearby a high-risk area. Similarly, the sewage treatment supporting facilities are necessarily designed synchronously, constructed quickly and applied early. Therefore, the key point is how to quickly build the assembly type sewage treatment station under the conditions of time emergency and epidemic situation emergency.
Disclosure of Invention
Aiming at the prior art, the invention provides a construction and debugging process of an assembled sewage treatment station of epidemic prevention emergency engineering, which is used for carrying out rapid emergency construction on the assembled sewage treatment station through four stages of foundation treatment and pre-embedding, tank body installation, connection and fixation, operation debugging and the like.
The invention provides a construction and debugging process of an epidemic prevention emergency engineering assembled sewage treatment station, which comprises the following steps:
s1, preparing for construction;
s2, leveling and measuring and positioning the field: leveling the field, removing impurities on the surface of the field, and performing construction lofting according to a wire control point and a leveling control point which are established in the field;
s3, setting a guide beam: before the guide beam is arranged, the positioning pile is driven according to different soil qualities;
s4, driving a steel sheet pile: the steel sheet pile is driven by a screen type driving method through a pile driving and pulling machine; after the steel sheet pile is driven, the water-closing property of the pile body is checked in time, and the water leakage position is welded and repaired;
s5, excavation and dewatering of a foundation pit: after the steel sheet piles are constructed, the earthwork of the foundation pit can be excavated in layers; when the foundation pit is excavated to be 20cm above the design elevation, adopting manual excavation to reach the design elevation; intercepting ditches are arranged around the top surface of the foundation pit, and drainage ditches are arranged around the pit bottom;
s6, pouring a foundation and embedding a component: the steel supporting frames are arranged on the steel purlins, and the steel purlins are connected by steel rib plates;
s7, tank body entering and transporting: transporting the glass fiber reinforced plastic tank body to a position 10 meters away from the side of the foundation pit on site;
s8, hoisting the tank body in place and fixing: when a foundation pit is excavated and foundation pouring is carried out, an anchoring screw rod is pre-embedded, the glass fiber reinforced plastic tank bodies are hoisted in place to the designated position in the foundation pit and are laterally fixed by an anti-floating belt, two ends of the anti-floating belt are fixedly connected with the anchoring screw rod, and the glass fiber reinforced plastic tank bodies are in flexible connection; placing waste tires between the steel sheet piles and the end parts of the glass fiber reinforced plastic tank bodies for longitudinal flexible fixation;
s9, paying off and ventilating a sewage well: measuring and arranging a pile in the pipeline, and discharging a groove side line of the pipeline by lime;
s10, trench excavation: excavating pipeline grooves by using a small excavator, and reserving 60cm working faces for each groove;
s11, cutting a connecting port: a small pneumatic pick is adopted to directly cut a connection port at the design position of the current sewage well;
s12, connecting and plugging a pipeline: newly building a sewage pipeline, and performing pipe descending and installation in the direction from upstream to downstream until the pipeline is inserted into the connection port;
s13, water filling test: carrying out water filling tests on the glass fiber reinforced plastic tank bodies of all the units according to the designed process sequence;
s14, single machine debugging: performing single machine debugging on a water inlet pump, a water outlet pump, a deodorization fan and a dosing pump which work independently;
s15, whole-line debugging: after the single machine is debugged, the sewage treatment process is completely communicated, the sewage treatment system can be completely and continuously debugged under the normal condition, according to the sequence of process units, whether the operation of a dosing pump of the system is normal or not is checked, whether an intake pump and an outlet pump establish interlocking control with the liquid level or not is checked, and whether the PH, flow, residual chlorine and COD (chemical oxygen demand) values of the outlet water are in the normal range or not is checked through an online monitoring instrument;
s16, acceptance and backfilling: and performing related tests according to requirements after the pipeline connection and plugging are completed, and backfilling after the pipeline connection and plugging are qualified.
Preferably, in S3, the positioning piles are steel pipe piles with a diameter of 50cm and a wall thickness of 8mm, the distance between the positioning piles is 3.6 meters, and the driving depth of the positioning piles is 3.0m.
Preferably, in S3, the guide beam is machined from a 22-gauge i-steel.
Preferably, in S6, the steel purlin is formed by processing double-spliced 2H400 × 400 × 13 × 21 steel sections, and the distance between the steel purlins is 1.5m.
Preferably, in S6, C15 concrete is filled between the steel rib plates.
Preferably, in S12, the periphery of the connecting port is plugged by small building blocks and cement mortar, so that the plugging is guaranteed to be compact.
Preferably, in S13, in the water filling test, the water filling is completed in three times, namely 1/3, 1/3 and 1/3 of water filling, and after every 1/3 of water filling, the liquid level change, the leakage of the tank body and the pressure resistance are checked.
Preferably, in the step S16, in the backfilling, crushed gravel is used for backfilling from the bottom of the pipeline to 50cm of the top of the pipeline, and plain soil is used for backfilling from 50cm of the top of the pipeline to the ground; and paving the layer and tamping the sealing layer during backfilling.
Compared with the prior art, the invention has the beneficial effects that: the invention aims to solve the problem of construction of public health emergency supporting facilities under an epidemic situation emergency, and the sewage treatment station is delivered to use as soon as possible under the condition of limited time, so that the trend of the epidemic situation is possibly stable one day earlier after the sewage treatment station is put into use one day earlier, and the method is a civil engineering which benefits common people. The invention adopts an assembly type technology, advocates green and environment-friendly construction, and enables projects which originally need months to be improved in effectiveness only in tens of days by adjusting a foundation pit bottom treatment mode, innovating a tank body fixing mode, optimizing a sewage treatment functional partition and upgrading a link mode and a connection mode among tank bodies, thereby having popularization value and adopting the construction method which is fast to assemble and use when more cities face the construction of an imminent isolation area.
Drawings
Fig. 1 is a flow chart of a construction and debugging process of an epidemic prevention emergency engineering fabricated sewage treatment station in the embodiment of the invention.
Fig. 2 is a schematic partial structure diagram according to an embodiment of the present invention.
Wherein, 1, steel sheet pile; 2. a glass fiber reinforced plastic tank body; 3. an anchoring screw rod; 4. anti-floating band; 5. waste tires.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained by combining the specific drawings.
Examples
As shown in fig. 1 and 2, the construction and debugging process of the fabricated sewage treatment station for epidemic prevention emergency engineering comprises the following steps:
s1, preparing construction;
s2, leveling and measuring and positioning the field: leveling a field, removing impurities on the surface of the field, and performing construction lofting according to a wire control point and a leveling control point which are established in the field;
s3, setting a guide beam: arranging a firm guide beam with certain rigidity, and driving positioning piles into the guide beam according to different soil qualities before arranging the guide beam; the positioning piles are steel pipe piles with the diameter of 50cm and the wall thickness of 8mm, the distance between the positioning piles is 3.6 meters, and the driving depth of the positioning piles is 3.0m; the guide beam is formed by processing 22-size I-steel;
s4, driving a steel sheet pile: the steel sheet pile 1 is driven by a screen type driving method through a pile driving and drawing machine; wherein, a group of sheet piles at two ends of the screen wall are driven to a designed elevation or a certain depth, the verticality is strictly controlled, the sheet piles are fixed on the purlin by electric welding, and then the sheet piles are driven into the purlin in the middle according to the height of 1/3 or 1/2 of the sheet piles in sequence; after the steel sheet pile 1 is driven, the water-closing property of the pile body is checked in time, and the water leakage position is welded and repaired;
s5, excavation and precipitation of the foundation pit: after the steel sheet pile 1 is constructed, the earthwork of the foundation pit can be excavated in layers; when the foundation pit is excavated to be 20cm above the design elevation, excavating to the design elevation by adopting manual excavation; intercepting ditches are arranged on the periphery of the top surface of the foundation pit, drainage ditches are arranged along the periphery of the pit bottom, 1 water pump is configured for each water collecting pit on site, and 2 spare water pumps can meet the use requirement;
s6, casting a foundation and embedding a component: the steel supporting frames are arranged on the steel purlins, the steel purlins are connected through steel rib plates with the thickness of 1.0cm, the steel purlins are formed by processing double-spliced 2H 400X 13X 21 section steel, the spacing between the steel purlins is 1.5m, and the steel rib plates are filled with C15 concrete;
s7, tank body entering and transporting: a 25T automobile crane and a flat wagon with the length of 17.5 meters are put in place at the position where the glass fiber reinforced plastic tank body 2 is placed; the glass fiber reinforced plastic tank body 2 is hoisted on a flat truck through the 25T automobile crane and is fixedly transported to a position 10 meters away from the side of the foundation pit on site through a binding band;
s8, hoisting the tank body in place and fixing: when a foundation pit is excavated and a foundation is poured at the bottom of the foundation pit, two parallel lines are respectively drawn at the position where the glass fiber reinforced plastic tank body 2 is placed along the radius plus 150mm from the outside, the anchoring screw rods 3 with the embedded length of 35cm are embedded every 5m from the positions 300mm inward from the two ends of the glass fiber reinforced plastic tank body 2, and the embedded ends of the anchoring screw rods 3 are welded with horn mouth end plates to play a role of reverse-pulling anchoring;
hoisting the glass fiber reinforced plastic tank body 2 on the flat truck to a specified position in a foundation pit by adopting a 220T automobile crane, laterally fixing the glass fiber reinforced plastic tank body by using an anti-floating belt 4, and connecting and fixing two ends of the anti-floating belt 4 with an anchoring screw rod 3;
considering that the foundation pit foundation treatment can not be carried out according to the conventional method under the emergency condition and the phenomenon of uneven settlement in the foundation pit can occur after the glass fiber reinforced plastic tank bodies are installed, the glass fiber reinforced plastic tank bodies 2 are in flexible connection to realize the adjustment of the degrees of freedom of the longitudinal section in four directions so as to avoid the problem that pollutants pollute the soil body due to the breakage of connecting pipelines;
the hoisting sequence and the function partition of the glass fiber reinforced plastic tank body 2 are adjusted according to the emergency requirement of epidemic situations, the disinfection tank and the sedimentation tank are exchanged, the treatment process after adjustment is a combined treatment process mainly comprising a septic tank, a pre-disinfection tank, an adjusting tank, a sedimentation tank and a disinfection tank, and the outward transportation and the discharge of sediments are facilitated under the condition that the discharge disinfection pretreatment standard of water pollutants of medical institutions is met;
s9, paying off and ventilating a sewage well: measuring and arranging a pile in the pipeline, and discharging a groove side line of the pipeline by lime;
s10, trench excavation: excavating pipeline grooves by using a small excavator, and reserving 60cm working faces for each groove;
s11, cutting a connecting port: a small pneumatic pick is adopted to directly dig a connecting port at the current design position of the sewage well;
s12, connecting and plugging a pipeline: connecting the inlet and outlet joints of the sewage station by ductile cast iron pipes, laying medium coarse sand at the pipe bottom, and lowering and installing a newly-built sewage pipeline from upstream to downstream until the pipeline is inserted into the joint port; the periphery of the connecting port is plugged by small building blocks and cement mortar, so that the plugging is compact;
s13, water filling test: carrying out a water filling test on each unit glass fiber reinforced plastic tank body according to a designed process sequence; in the water filling test, the water filling is generally finished in three times according to the design requirements, namely 1/3, 1/3 and 1/3 of water filling, and after 1/3 of water filling, the liquid level change, the leakage and pressure resistance of the tank body are checked;
s14, single machine debugging: the single machine debugging is carried out on the water inlet pump, the water outlet pump, the deodorization fan and the dosing pump which work independently;
s15, debugging in a whole line: after the single machine is debugged, the sewage treatment process is completely communicated, the sewage treatment system can be completely and continuously debugged under the normal condition, according to the sequence of process units, whether the operation of a dosing pump of the system is normal or not is checked, whether an intake pump and an outlet pump establish interlocking control with the liquid level or not is checked, and whether the PH, flow, residual chlorine and COD (chemical oxygen demand) values of the outlet water are in the normal range or not is checked through an online monitoring instrument;
s16, acceptance and backfilling: after the pipeline connection and plugging are finished, performing related tests according to requirements, and backfilling after the pipeline connection and plugging are qualified; backfilling the pipeline from the bottom to the top of the pipeline by crushed gravel within 50cm, and backfilling the pipeline from the top of the pipeline to the ground by plain soil within 50 cm; and paving the layer and tamping the sealing layer during backfilling.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields, and are also within the scope of the present invention.
Claims (8)
1. A construction and debugging process for an epidemic prevention emergency engineering fabricated sewage treatment station is characterized by comprising the following steps:
s1, preparing for construction;
s2, leveling and measuring and positioning the field: leveling the field, removing impurities on the surface of the field, and performing construction lofting according to a wire control point and a leveling control point which are established in the field;
s3, setting a guide beam: before the guide beam is arranged, the positioning pile is driven according to different soil qualities;
s4, driving steel sheet piles: the steel sheet pile is driven by a screen type driving method through a pile driving and pulling machine; after the steel sheet pile is driven, the water-closing property of the pile body is checked in time, and the water leakage position is welded and repaired;
s5, excavation and precipitation of the foundation pit: after the steel sheet piles are constructed, the earthwork of the foundation pit can be excavated in layers; when the foundation pit is excavated to be 20cm above the design elevation, adopting manual excavation to reach the design elevation; intercepting ditches are arranged around the top surface of the foundation pit, and drainage ditches are arranged around the pit bottom;
s6, casting a foundation and embedding a component: the steel supporting frames are arranged on the steel enclosing purlins, and the steel enclosing purlins are connected by steel rib plates;
s7, tank body entering and transporting: transporting the tank body to a position 10 m away from the side of the foundation pit on site;
s8, hoisting the tank body in place and fixing: when a foundation pit is excavated and a foundation is poured, an anchoring screw rod is pre-embedded, the tank body is hoisted in place to an appointed position in the foundation pit and is laterally fixed by an anti-floating belt, two ends of the anti-floating belt are fixedly connected with the anchoring screw rod, and the tank bodies are in flexible connection; placing waste tires between the steel sheet piles and the end parts of the tank body, and carrying out longitudinal flexible fixation;
s9, paying off and ventilating a sewage well: measuring and setting a pile in the pipeline, and discharging a groove side line of the pipeline by using lime;
s10, trench excavation: excavating pipeline grooves by using a small excavator, and reserving 60cm working faces for each groove;
s11, cutting a connecting port: a small pneumatic pick is adopted to directly cut a connection port at the design position of the current sewage well;
s12, connecting and plugging a pipeline: newly building a sewage pipeline, and performing pipe descending and installation in the direction from upstream to downstream until the pipeline is inserted into the connection port;
s13, water filling test: carrying out water filling tests on the glass fiber reinforced plastic tank bodies of all the units according to the designed process sequence;
s14, single machine debugging: the single machine debugging is carried out on the water inlet pump, the water outlet pump, the deodorization fan and the dosing pump which work independently;
s15, whole-line debugging: after the single machine is debugged, the sewage treatment process is communicated in a whole line, the sewage treatment system can be completely and continuously debugged under a normal condition, whether the dosing pump of the system operates normally or not is checked according to the sequence of process units, whether the water inlet pump and the water outlet pump establish interlocking control with the liquid level or not is checked, and whether the PH, the flow, the residual chlorine and the COD value of the outlet water are in a normal range or not is checked through an online monitoring instrument;
s16, acceptance and backfilling: and performing related tests according to requirements after the pipeline connection and plugging are completed, and backfilling after the pipeline connection and plugging are qualified.
2. The construction and debugging process of the epidemic prevention emergency engineering fabricated sewage treatment station as claimed in claim 1, wherein in S3, the positioning piles are steel pipe piles with a diameter of 50cm and a wall thickness of 8mm, the spacing of the positioning piles is 3.6 meters, and the driving depth of the positioning piles is 3.0m.
3. The construction and debugging process of the epidemic prevention emergency engineering assembly type sewage treatment station as claimed in claim 1, wherein in S3, the guide beam is processed by using No. 22I-steel.
4. The construction and debugging process of the epidemic prevention emergency engineering assembly type sewage treatment station as claimed in claim 1, wherein in S6, the steel purlins are processed by double-spliced 2H400 x 13 x 21 section steel, and the spacing between the steel purlins is 1.5m.
5. The construction and debugging process of the epidemic prevention emergency engineering assembly type sewage treatment station as claimed in claim 1, wherein in S6, C15 concrete is filled between the steel rib plates.
6. The construction and debugging process of the epidemic prevention emergency engineering assembly type sewage treatment station as claimed in claim 1, wherein in S12, the periphery of the connection port is plugged by small building blocks and cement mortar to ensure tight plugging.
7. The construction and debugging process of the epidemic prevention emergency engineering assembly type sewage treatment station as claimed in claim 1, wherein in S13, in the water filling test, the water filling is completed in three times, namely 1/3, 1/3 and 1/3 of water filling, and after every 1/3 of water filling, the liquid level change and the leakage and pressure resistance of the tank body are checked.
8. The construction and debugging process of the epidemic prevention emergency engineering assembly type sewage treatment station as claimed in claim 1, wherein in S16, in the backfilling, gravel is backfilled from the bottom of the pipeline to 50cm of the top of the pipeline, and plain soil is backfilled from 50cm of the top of the pipeline to the ground; and paving the layer and tamping the sealing layer during backfilling.
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| CN108708364A (en) * | 2018-06-06 | 2018-10-26 | 中国电建集团山东电力建设有限公司 | DDC pile foundation construction process |
| CN109944313A (en) * | 2019-04-12 | 2019-06-28 | 天津中怡建筑规划设计有限公司 | A kind of rural area outdoor vacuum drainage system system |
| CN212151756U (en) * | 2019-08-02 | 2020-12-15 | 徐安心 | Movable tank type rapid assembling emergency sewage treatment equipment |
| CN111115951A (en) * | 2019-12-23 | 2020-05-08 | 成都碧水水务建设工程有限公司 | Equipment modular assembly type sewage treatment station and rapid factory building method thereof |
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