CN102943583B - Method for constructing cast-in-situ steel concrete modular sewage treatment facility for town - Google Patents
Method for constructing cast-in-situ steel concrete modular sewage treatment facility for town Download PDFInfo
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- CN102943583B CN102943583B CN201210394826.1A CN201210394826A CN102943583B CN 102943583 B CN102943583 B CN 102943583B CN 201210394826 A CN201210394826 A CN 201210394826A CN 102943583 B CN102943583 B CN 102943583B
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Abstract
The invention belongs to the technical field of domestic sewage treatment for a town, and in particular relates to a method for constructing a cast-in-situ steel concrete modular sewage treatment facility. The method comprises the steps of compacting a prefabricated pedestal foundation, casting a steel concrete tank in situ, constructing a prefabricated base plate and constructing a brick inspection well. According to the method, construction structure models with proper size are purchased to be poured into an integrated device outside a construction site; the construction process is simple and easy, the construction cost is low, the corrosion resistance is strong, and the overall scale of the construction structure is relatively appropriate; furthermore, the method has low requirement on hoisting equipment and conveying equipment so as to meet the current situation and economic capability of a rural area.
Description
Technical field
The invention belongs to domestic sewage of villages and small towns processing technology field, be specifically related to a kind of cast-in-situ steel concrete modularization sewage treatment facility construction method.
Background technology
China's economic development is in recent years rapid, and living standard is significantly improved, and the various quantity of wastewater effluent speedups that thereupon produce are also larger.Than municipal sewage scale, centralized processing, rural area is because being subject to the impact of economy, region, industrial pattern, and sewage is difficult to collect to be disposed, and village periphery water environment pollution is serious.The suitable sewage treatment facility of construction decentralized, scale of suiting measures to local conditions, becomes the critical task that periphery ecological environment is improved in Rural Areas at Present.
Common sewage treatment facility adopts steel formula, after relying on large-scale vehicle to be transported to build point, be positioned in the pit foundation digging in advance, by earthing, immobilization to complete construction operation.Because rural transport present situation is poor, many places road still retain brick, watt, soil structure, and long neglected and in disrepair, be difficult to bear large-scale lifting and haulage device turnover place, make to weigh several tons even the Integral steel sewage disposal device of tens tons be difficult to be placed into position.In addition, steel formula integration apparatus cost is high, perishable, in addition some regional groundwater table are higher, long-term raise of stage effect easily makes equipment float up to earth's surface, and equipment can not normally be moved, and makes steel formula integrated sewage treating apparatus be difficult to be suitable in a lot of areas.
Summary of the invention
The object of the invention is to solve that above-mentioned steel formula facility is disposed of sewage deficiency and a kind of cast-in-situ steel concrete modularization sewage treatment facility construction method of providing.This construction method utilizes the structure template that size is suitable, in in-situ deposited prefabricated corresponding sewage treatment structure outside the venue, forms integrated facility, in order to process domestic sewage of villages and small towns by series connection step by step.
The technical solution used in the present invention is:
The construction method of cast-in-situ steel concrete modularization sewage treatment facility of the present invention, mainly comprises that precast pedestal basis compacting, cast-in-situ steel concrete pond body, prefabricated panel are built, brick manhole is constructed.
Precast pedestal of the present invention basis compacting: first carry out the compacting leveling of place, pedestal bottom, lay the hardcore bed that 200mm is thick from bottom to top, the C15 Commercial Concrete that 50mm is thick, then adopts the cement mortar of the thick 1:2.5 of 20mm floating, and while preventing that formwork erection from building, pedestal tilts and sedimentation.
Cast-in-situ steel concrete of the present invention pond body: main pond body comprises regulating reservoir, digester, biological tank, anaerobic filter, and all ponds body is measure-alike, all adopts same well shaft type template when prefabricated.First by the prior reinforcement location line that bullet is good on bed die, standard assembling reinforcement skeleton with Φ 14200 double-layer double-directions, bar splicing place fastens center and two ends with iron wire, then the formwork erection line of take carries out formwork erection as standard, form joint adopts the cement mortar of 1:3 all to stitch, formwork erection finishes backward mould inner wall smearing release agent, application area is greater than empty size 50cm left and right in prefabricated units, then adopt C30 Commercial Concrete to build, while building, utilize ZN50 type vibrating spear to vibrate, to be pouredly carry out maintenance, form removal after building up type.
Prefabricated panel of the present invention is built: first press the formwork erection line formwork erection that bed die bullet is good, follow the standard binding structure reinforcing bar with Φ 14200 double-layer double-directions, at the bottom of plate, muscle overlaps at bearing place, plate gluten is at span centre 1/3 place's overlap joint, same cross section bar splice rate is not more than 25%, and beam additional hooping diameter limb number is with should, across beam stirrup, then building by the thick C25 Commercial Concrete of 150mm, finally remove bed die, and with the thick 1:2.5 cement sand plaster of 50mm.
Brick manhole of the present invention is constructed: well outer wall is smeared the thick 1:2.5 cement mortar of 20mm, well body adopts M5 cement mortar MU10 brick masonry, adopt the thick 1:3 cement mortar of the 20mm receipts light of plastering in the borehole wall, well lid is selected the thick cast-in-place C25 steel bar concrete cover plate of Φ 12150 single-layer bidirectional 120mm, with the thick 1:2.5 cement sand plaster of 20mm.
Technological process of the present invention and principle:
Domestic sewage of villages and small towns enters regulating reservoir after pipe network is collected, adjusting in regulating reservoir, equal and water quality and quantity, by the acidifying that is hydrolyzed of water pump lifting to digester, water outlet is from flowing into biological tank, in biological tank, be provided with semi soft packing, utilize a large amount of microorganisms that have in filler further to remove the organic matter in sewage, then enter the anaerobic filter that is provided with filtrate and carry out anaerobic digestion and arrange outward by delivery port.
Main advantage of the present invention is:
By purchasing the structure module that size is suitable, in construction, build integrated apparatus outside the venue, building course is simply, easily go, and construction cost is lower, corrosion resistance is strong, and structure overall size is relatively suitable, less demanding to lifting and approach facility, meet rural area present situation and ability to shoulder economically.
Accompanying drawing explanation
Fig. 1 is cast-in-situ steel concrete modularization sewage treatment facility sectional drawing.
Fig. 2 is individual module facility sectional drawing.
In Fig. 1: 1. regulating reservoir; 2. digester; 3. biological tank; 4. anaerobic filter; 5. manhole; A1. undercurrent type water pump, the using and the reserved, for rising to digester by the water extraction of regulating reservoir; H1. inlet opening center to center distance pond heights of roofs; H2. preformed hole center to center distance pond heights of roofs after regulating reservoir; H3. preformed hole center to center distance pond heights of roofs after digester; H4. preformed hole center to center distance pond heights of roofs after biological tank; H5. weep hole center to center distance pond heights of roofs; H6 pond height; H7 manhole superelevation; D1 manhole internal diameter; D2 pond body internal diameter; Pond body spacing 300mm.
In Fig. 2: the thick C30 Commercial Concrete of a. Φ 14200 double-layer double-direction 300mm; B. the thick C25 Commercial Concrete of Φ 14200 double-layer double-direction 150mm; C.50mm thick 1:2.5 cement mortar; D.20mm thick 1:2.5 cement mortar; E.M5 cement mortar MU10 masonry walls; F.20mm thick 1:3 cement mortar; G.20mm thick 1:2.5 cement mortar; H. the thick C25 Commercial Concrete of Φ 12150 single-layer bidirectional 120mm; 6. overfall; 7. water inlet; 8. delivery port.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is further illustrated.
As shown in accompanying drawing 1, accompanying drawing 2, cast-in-situ steel concrete modularization sewage treatment facility is mainly constructed and is formed by precast pedestal basis compacting, cast-in-situ steel concrete pond body, the construction of prefabricated pond base plate, brick manhole.
The compacting of precast pedestal basis is followed successively by from top to bottom: the hardcore bed that 200mm is thick, the C15 Commercial Concrete that 50mm is thick, the cement mortar of the thick 1:2.5 of 20mm.
Cast-in-situ steel concrete pond body adopts Φ 14200 double-layer double-direction standard binding structure reinforcing bars, with C30 Commercial Concrete, builds, and formwork erection seam crossing adopts the cement mortar of 1:3 all to stitch, and guarantees that template combines closely.Mainly specifically regulating reservoir 1, digester 2, biological tank 3, anaerobic filter 4, pond body bottom surface diameter and highly as shown in Figure 1.Prefabricated panel is pressed the thick C25 Commercial Concrete of 150mm, and the standard of Φ 14200 double-layer double-directions is in-situ deposited prefabricated, and with the thick 1:2.5 cement sand plaster of 50mm.
Brick manhole 5 is constructed by being outside to inside followed successively by: the thick 1:2.5 cement mortar of 20mm, M5 cement mortar MU10 masonry walls, the thick 1:3 cement mortar of the 20mm receipts light of plastering.Well lid is selected the thick cast-in-place C25 steel bar concrete cover plate of Φ 12150 single-layer bidirectional 120mm, and processes with the thick 1:2.5 cement sand plaster of 20mm.
Between each pond body, adopt PVC bellows to connect.The interior undercurrent type water pump A1 that arranges of regulating reservoir 1.
Below provide 3 embodiment to further illustrate the present invention.
Embodiment 1
Sewerage treatment scale is 50m
3/ d.Cast-in-situ steel concrete modularization sewage treatment facility mainly comprises regulating reservoir, digester, biological tank, anaerobic filter.It is as follows that pond body is built modular structure:
The prefabricated pond body borehole wall: the thick C30 Commercial Concrete of a. Φ 14200 double-layer double-direction 300mm.
Prefabricated panel is followed successively by from top to bottom:
b. the thick C25 Commercial Concrete of Φ 14200 double-layer double-direction 150mm, thick 1:2.5 cement mortar c.50mm.
Brick manhole is constructed by being outside to inside followed successively by: d.20mm thick 1:2.5 cement mortar, e.M5 cement mortar MU10 masonry walls, thick 1:3 cement mortar f.20mm.
Brick manhole cover plate is from top to bottom followed successively by: g.20mm thick 1:2.5 cement mortar, the thick C25 Commercial Concrete of h. Φ 12150 single-layer bidirectional 120mm.
Body bottom surface, pond diameter 2.5m, the high 3m in pond, pond body constant gap is 300mm, adopts PVC bellows to connect between the body of pond, overfall 6 is positioned at 0.2m place, top, pond, aperture 110mm, water inlet 7 and delivery port 8 sizes are depending on pond body type, and concrete specification is in Table 1.
50m disposes of sewage facility day
3, effluent index value is all lower than < < urban wastewater treatment firm pollutant emission standard > > (GB18918-2002) one-level B standard.Specific design specification and processing operational effect are as shown in table 1.
Table 1
Embodiment 2-3
The difference of embodiment 2, embodiment 3 and embodiment 1 is the treatment scale of cast-in-situ steel concrete modularization sewage treatment facility, and the specification of respective handling facility.Wherein embodiment 2 sewerage treatment scales are 30m
3/ d, embodiment 3 sewerage treatment scales are 85m
3/ d.Concrete specification and operational effect are as shown in table 2.
Table 2
Claims (1)
1. for the cast-in-situ steel concrete modularization sewage treatment facility construction method in villages and small towns, comprise the step that precast pedestal basis compacting, cast-in-situ steel concrete pond body, prefabricated panel construction and brick manhole are constructed;
Precast pedestal basis compacting: first carry out the compacting leveling of place, pedestal bottom, lay the hardcore bed that 200mm is thick from bottom to top, the C15 Commercial Concrete that 50mm is thick, then adopts the cement mortar of the thick 1:2.5 of 20mm floating, while preventing that formwork erection from building, pedestal tilts and sedimentation;
Cast-in-situ steel concrete pond body: main pond body comprises regulating reservoir, digester, biological tank, anaerobic filter, and all ponds body is measure-alike, all adopts same well shaft type template when prefabricated; First by the prior reinforcement location line that bullet is good on bed die, standard assembling reinforcement skeleton with Φ 14200 double-layer double-directions, bar splicing place fastens center and two ends with iron wire, then the formwork erection line of take carries out formwork erection as standard, form joint adopts the cement mortar of 1:3 all to stitch, formwork erection finishes backward mould inner wall smearing release agent, application area is greater than empty size 50cm in prefabricated units, then adopt C30 Commercial Concrete to build, while building, utilize ZN50 type vibrating spear to vibrate, to be pouredly carry out maintenance, form removal after building up type;
Prefabricated panel is built: first press the formwork erection line formwork erection that bed die bullet is good, follow the standard binding structure reinforcing bar with Φ 14200 double-layer double-directions, at the bottom of plate, muscle overlaps at bearing place, plate gluten is at span centre 1/3 place's overlap joint, same cross section bar splice rate is not more than 25%, and beam additional hooping diameter limb number is with should, across beam stirrup, then building by the thick C25 Commercial Concrete of 150mm, finally remove bed die, and with the thick 1:2.5 cement sand plaster of 50mm;
Brick manhole is constructed: well outer wall is smeared the thick 1:2.5 cement mortar of 20mm, well body adopts M5 cement mortar MU10 brick masonry, adopt the thick 1:3 cement mortar of the 20mm receipts light of plastering in the borehole wall, well lid is selected the thick cast-in-place C25 steel bar concrete cover plate of Φ 12150 single-layer bidirectional 120mm, with the thick 1:2.5 cement sand plaster of 20mm.
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| CN106966645B (en) * | 2017-04-20 | 2020-02-14 | 温州市龙湾区市政工程公司 | Inspection well and construction method thereof |
| CN109339006B (en) * | 2018-12-05 | 2023-11-21 | 张迈 | Efficient cone-type hydraulic power absorption well and construction method thereof |
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| CN201722706U (en) * | 2010-06-03 | 2011-01-26 | 文彦 | Concrete fragment combined inspection well |
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| JPH07204673A (en) * | 1994-01-20 | 1995-08-08 | Toho Plant Kogyo Kk | Construction method for purification tank, and structure of precipitation tank |
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| AT408651B (en) * | 1999-11-11 | 2002-02-25 | Inowa Gmbh & Co Kg | Wastewater cleanup system |
| CN2494394Y (en) * | 2001-05-23 | 2002-06-05 | 魏长利 | Precast concrete seat of blowdown manhole |
| CN101857336A (en) * | 2010-01-25 | 2010-10-13 | 安徽鲁班建设投资集团有限公司 | Water recycling circulating system |
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Effective date of registration: 20201202 Address after: 243000 building 7, 1800 Yushan West Road, Yushan District, Ma'anshan City, Anhui Province Patentee after: ANHUI HUANGHE WATER-RESOURCE POLYTRON TECHNOLOGIES Inc. Address before: Gehu Lake Road Wujin District 213164 Jiangsu city of Changzhou province No. 1 Patentee before: CHANGZHOU University |
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