CN102642999B - Preparation method and the septic tank thereof of prestressed concrete slabs type combined septic tank - Google Patents
Preparation method and the septic tank thereof of prestressed concrete slabs type combined septic tank Download PDFInfo
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- CN102642999B CN102642999B CN201210126217.8A CN201210126217A CN102642999B CN 102642999 B CN102642999 B CN 102642999B CN 201210126217 A CN201210126217 A CN 201210126217A CN 102642999 B CN102642999 B CN 102642999B
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Abstract
The invention belongs to a kind of preparation method and septic tank thereof of prestressed concrete slabs type combined septic tank. preparation method comprises the steps such as prestressed concrete slabs preparation, Dan Chiti and parts preparation, assembling. the four sides pool wall of single pond body of septic tank is made up of four prestressed concrete slabses, the rectangular framework of single pond body, prestressed concrete slabs is rectangular slab, the connection bight that adjacent prestressed concrete slabs two ends are formed by casting concrete is connected, form by the body upper end, single pond at 2～5 single pond body serial connections and top and establish the septic tank unit that top cover forms, two above septic tank unit combine side by side, the openings of adjacent septic tank unit interconnects, the present invention makes pond body pressure-bearing wall with prestressed concrete slabs type member, there is the duration short, easy construction, crack resistance is good, rigidity is large, save material, member dead weight is light, member shear resistance, fatigue resistance and good stability, low and the long-lived advantage of construction cost, this preparation method is simple and practical.
Description
Technical field
The invention belongs to a kind of preparation method of prestressed concrete slabs type combined septic tank and change excrementPond.
Background technology
Septic tank is usually located at by building, and the interior people of building clean used sewage and enter by pipelineIn septic tank, the deposition of dirt in sewage is at the bottom of pond, and clear water is arranged ionization manure pit. Septic tank is conventionally by manually buildingMake, with manually digging pit, then lay bricks and bind, thisly build that pond method is long in time limit, the various trouble of constructing, of poor quality,Blowdown standard not up to standard, construction cost is high. For this reason, now build formula septic tank by reinforced concrete combination formula septic tankReplacing. Reinforced concrete combination formula septic tank is prefabricated formation pond body structure formula member in factory first, then groupDress forms integral septic tank.
As everyone knows, ordinary reinforced concrete structure formula member is because concrete tensile strength stretching strain is very little,So under the load action using, general equal work with cracking. In order to meet the requirement of distortion and Crack Control,Need to increase sectional dimension and the steel using amount of member, this will cause the sectional dimension of member excessive with deadweight, makesOrdinary reinforced concrete member is very uneconomical, can not bear large power span and load, cannot meet use and wantAsk. And adopt high strength cast iron and improve strength grade of concrete method to improve member cracking resistance andThe effect of controlling fracture width is little.
Therefore, current reinforced concrete combination formula septic tank is the requirement that meets distortion and Crack Control, all largeWidth increases sectional dimension and the steel using amount of member, causes the sectional dimension of member and deadweight excessive, makes ordinary steelThe septic tank volume of reinforced concrete member is large, sectional dimension and deadweight is excessive, cost is high, transport assembling effort,However, current reinforced concrete combination formula septic tank is also difficult to reach the compression strength that GB requires.
Summary of the invention
The object of the invention is to design a kind of preparation method of prestressed concrete slabs type combined septic tankAnd septic tank, make pond body pressure-bearing wall with prestressed concrete slabs type member, have the duration short, constructionEasy, crack resistance good, rigidity is large, saves material, member dead weight is light, member shear resistance, fatigue resistance andGood stability, the low and long-lived advantage of construction cost, this preparation method is simple and practical.
For this reason, preparation method of the present invention comprises the steps:
(1) as requested with the size of setting, prepare prestressed concrete slabs, it is pre-that four side direction are holded upStress armoured concrete slab forms the four sides pool wall of a rectangle list pond body, and prestressed concrete slabs is squareShape plate, the preparation of prestressed concrete slabs comprises;
Carry and cut deformed bar, deformed bar length is greater than prestressed concrete slabs length;
In punching block, arrange the long parallel deformed bars of several and plate, in punching block pre-determined bit install through hole,The module of connecting groove;
By after designing requirement prestressed reinforcement of tensioning, be fixed on punching block with ground tackle,
In punching block, build concrete members, strength grade of concrete is C30～C50;
Treat that punching block inner concrete maintenance knot is hard to 75～78% of concrete design strength, and be the age of concrete7～8 days time, loosen deformed bar, remove the default through hole in concrete members, the module of connecting groove,Make prestressed concrete slabs;
(2) preparation is built and is connected inner formword, exterior sheathing, fastener, shuttering fixing rod and the hold-down nut that bight is used,Or fixedly build connect the inner formword used of bight, exterior sheathing and and fixture;
(3) the prestressed concrete slabs head and the tail spacing distance of by designing requirement, four side direction being holded up surroundsRectangle, prestressed concrete slabs pressure-bearing surface is outside, connects bight at four prestressed concrete slabsesEach inner formword, exterior sheathing of placing inner formword, exterior sheathing and being fixedly connected with bight with fixture;
(4) build concrete members, strong concrete to being placed between the each inner formword, exterior sheathing that connects bightDegree grade is C30～C50, and the concrete members of building connects adjacent prestressed concrete slabs shapeBecome to connect bight;
(5) concrete in bight to be connected reaches intensity, removes inner formword, exterior sheathing, makes rectangle and in advance shouldPower armored concrete template list pond body;
(6) the each top cover of casting concrete, by designing requirement reserved well head on the top cover of requirement;
(7) by the building hole of digging combined septic tank under designing requirement, at the bottom of building pit casting concrete pond,On 2～5 single pond bodies being serially connected at the bottom of concrete sump by designing requirement, in single pond on bottom and top, body is coherentPort, top cover is established in the body upper end, single pond at top, forms on the Dan Chiti by 2～5 single pond body serial connections and topEnd is established a septic tank unit of top cover composition, and two above septic tank unit combine side by side, adjacent changeThe openings of manure pit unit interconnects, and the top of a septic tank unit is provided with inlet opening, another septic tankThe top of unit is provided with apopore, and backfill soil, in armored concrete template combined septic tank lateral wall, is preparedBecome prestressed concrete slabs type combined septic tank. Described deformed bar is cold drawing reinforced bar.The reinforcing bar length that expose at described prestressed concrete slabs two ends is 2/3～1/2 of joint angle minister degree.Described deformed bar and body axis, single pond are in vertical distribution, and the spacing of adjacent two deformed bars is 9～30cm。
The prestressed concrete slabs type combined septic tank of preparing by described method, mainly by single pond body instituteComposition, the four sides pool wall of Dan Chiti is made up of four prestressed concrete slabses, the rectangular framework of single pond body,Prestressed concrete slabs is rectangular slab, and adjacent prestressed concrete slabs two ends are by casting concreteThe connection bight forming is connected; On 2～5 single pond bodies are serially connected at the bottom of the concrete sump of building hole, in bottomWith the Dan Chiti band openings on top, top cover is established in the body upper end, single pond at top, forms by 2～5 single pond body stringsConnect a septic tank unit establishing top cover composition with the body upper end, single pond at top, two above septic tank unitSide by side combination, the openings of adjacent septic tank unit interconnects, the top of a septic tank unit be provided with intoWater hole, the top of another septic tank unit is provided with apopore. Deformed bar on described single pond body pool wallConcrete slab pressure-bearing surface is outside. It is recessed that the left and right side end face of described prestressed concrete slabs is provided with connectionGroove, or be distributed in the connecting hole of the both sides end face of armoured concrete slab. Described prestressed reinforced concreteThe reinforcing steel bars exposed at plate two ends. Described inlet opening is higher than the openings that is positioned at single pond, top body.
Said structure has reached object of the present invention.
The present invention makes pond body pressure-bearing wall with prestressed concrete slabs type member, has short, construction letter of durationJust, crack resistance is good, rigidity is large, saves material, member dead weight is light, member shear resistance, fatigue resistance and steadyQualitative good, the low and long-lived advantage of construction cost, this preparation method is simple and practical.
Concrete advantage is as follows:
1, shock resistance is good, and rigidity is large.
Due to pond body pressure-bearing wall has been applied to prestressing force, under working load effect, pond body pressure-bearing wall can not go outHuo Shi crack, existing crack is postponed and being occurred, thereby has also improved pond body pressure-bearing wall rigidity, has increased the resistance to of septic tankProperty for a long time.
2, save material, alleviate dead load.
Owing to having improved crack resistance and rigidity as the prestressed concrete plate of pond body pressure-bearing wall, therefore contrast passesThe combined septic tank member of system, than the much smaller cross section of general reinforced concrete structure just can adoptCan realize larger span. According to actual test, structure of the present invention is saved than ordinary reinforced concrete structure30%～40% concrete and 40%～60% reinforcing bar, save the cost about half.
3, improve the shear resistance of pond body pressure-bearing wall.
Prestressed existence has suppressed the time of occurrence of oblique section principal tensile stress, to having carried out of pond body diagonal crackTo inhibitory action, improve the shear resistance of oblique section.
4, improve the anti-fatigue performance of pond body pressure-bearing wall.
The existence of deformed bar makes in operational phase because of the caused section stress variation of load or unload widthSpend relatively very littlely, therefore can improve fatigue resistance, this is very favourable to bearing the structure of dynamic loading.
5, improve the stability of pressurized pond body pressure-bearing wall.
Because concrete compression strength is very high, therefore Bending of Reinforced Concrete Compressive Members generally can be worked effectively.But in the time that pool wall ecto-entad pressurized is very large, be subject to, after certain eccentricity pressure, being just easily bent at it,So that lose stable and destroy. If pond body pressure-bearing wall is applied to prestressing force, Reinforcement stretch-draw is obtainedVery tight, not only deformed bar itself is difficult for bending, and can help concrete around to improve bending-resistantAbility, thereby the stability of raising pond body pressure-bearing wall.
6, be beneficial to batch production, standardized production and construction, quality is good, construction cost is low.
At cement products, factory completes prestressed concrete plate, or prestressed concrete slabs type list pond body, qualityBe able to effective guarantee, also can use prestressed concrete plate in situ preparation prestressed reinforced concrete in construction siteTemplate list pond body, then assembled construction concretize manure pit, has the duration short, the shortening time reaches than tradition construction98%, easy construction, reduces and manually reaches 97% than tradition construction. And durable in use, multiple fractionation precipitation sewerReach quality standard, have and be well convenient to use effect.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is prestressed concrete slabs type list of the present invention pond body structure schematic diagram.
Fig. 3 is prestressed concrete slabs structural representation of the present invention.
Fig. 4 is the present invention's prestressed concrete slabs structural representation while preparing single pond body.
Fig. 5 be the present invention's casting concrete form connection bight time structural representation.
Specific embodiments
As shown in Figures 1 to 5, a kind of preparation method of prestressed concrete slabs type combined septic tank andIts septic tank.
Embodiment 1: preparation method of the present invention comprises the steps:
(1) as requested with the size set, prepare that 8, four side direction of prestressed concrete slabs hold upPrestressed concrete slabs forms the four sides pool wall of a rectangle list pond body, and prestressed concrete slabs isRectangular slab, the preparation of prestressed concrete slabs comprises:
Carry and cut deformed bar 5, deformed bar length is greater than prestressed concrete slabs length;
In punching block, arrange the long parallel deformed bars of several and plate, in punching block pre-determined bit install through hole,The module of connecting groove also can be established according to designing requirement several longitudinal reinforcements on deformed bar, forms reinforcing barNet, but only need be to applying stretch-draw with the long parallel deformed bar of plate;
By after designing requirement prestressed reinforcement of tensioning, be fixed on punching block with ground tackle;
In punching block, build concrete members 16, strength grade of concrete is C30～C50;
Treat that punching block inner concrete maintenance knot is hard to 75～78% of concrete design strength, and be the age of concrete7～8 days time, loosen deformed bar, remove the default through hole 4 in concrete members, the mould of connecting groove 10Piece, makes prestressed concrete slabs.
(2) preparation build connect bight 6 use inner formword 12, exterior sheathing 11, fastener, shuttering fixing rod 13 andHold-down nut 14, or fixedly build connect the inner formword used of bight, exterior sheathing and and fixture;
(3) the prestressed concrete slabs head and the tail spacing distance of by designing requirement, four side direction being holded up surroundsRectangle, prestressed concrete slabs pressure-bearing surface is outside, connects bight at four prestressed concrete slabsesEach inner formword, exterior sheathing of placing inner formword, exterior sheathing and being fixedly connected with bight with fixture.
As shown in Figure 4 and Figure 5, four prestressed concrete slabses connect bights respectively place inner formword, outsideTemplate, inside and outside template should be wrapped and be established adjacent prestressed concrete slabs both ends, and both ends are exposedReinforcing bar is curved to connecting bight infolding, then with the fixing inside and outside template of the fastener lower end that is Qian, fixes by templateThe fixing inside and outside template of bar and hold-down nut upper end; Or use other fixture, as fixing inside and outside moulds such as push rodsPlate.
(4) build concrete members, strong concrete to being placed between the each inner formword, exterior sheathing that connects bightDegree grade is C30～C50, and the concrete members of building connects adjacent prestressed concrete slabs shapeBecome to connect bight;
(5) concrete in bight to be connected reaches intensity, removes inner formword, exterior sheathing, makes rectangle prestressing forceArmored concrete template list pond body;
(6) the each top cover 1 of casting concrete, by designing requirement reserved well head 2 on the top cover of requirement;
(7) by the building hole of digging combined septic tank under designing requirement, at the bottom of building pit casting concrete pond 7,On 2～5 single pond bodies being serially connected at the bottom of concrete sump by designing requirement, in single pond on bottom and top, body is coherentPort, top cover is established in the body upper end, single pond at top, forms on the Dan Chiti by 2～5 single pond body serial connections and topEnd is established a septic tank unit of top cover composition, and two above septic tank unit combine side by side, adjacent changeThe openings of manure pit unit interconnects, and the top of a septic tank unit is provided with inlet opening 9, and another changes excrementThe top of pool unit is provided with apopore 3. Backfill soil, in armored concrete template combined septic tank lateral wall, is madeStandby one-tenth prestressed concrete slabs type combined septic tank. Described deformed bar is cold drawing reinforced bar.The reinforcing bar length that expose at described prestressed concrete slabs two ends is 2/3～1/2 of joint angle minister degree.Described deformed bar and body axis, single pond are in vertical distribution, and the spacing of adjacent two deformed bars is 9～30cm。
The prestressed concrete slabs type combined septic tank of preparing by described method, mainly by single pond body instituteComposition, the four sides pool wall of Dan Chiti is made up of four prestressed concrete slabses. The rectangular framework of single pond body,Prestressed concrete slabs is rectangular slab, and adjacent prestressed concrete slabs two ends are by casting concreteThe connection bight forming is connected. On 2～5 single pond bodies are serially connected at the bottom of the concrete sump of building hole, Dan ChiBody the best is 3 serial connections. At the Dan Chiti on bottom and top band openings, the openings on top was the mouth of a river,The openings of bottom was dirt mouth. Top cover is established in the body upper end, single pond at top, forms by 2～5 single pond body stringsConnect a septic tank unit establishing top cover composition with the body upper end, single pond at top. Two above septic tank unitCombination side by side. The openings of adjacent septic tank unit interconnects, and the top of a septic tank unit is provided withInlet opening, the top of another septic tank unit is provided with apopore. Apopore arranges lower than inlet opening. DescribedSingle pond body pool wall on prestressed concrete slabs pressure-bearing surface outside.
The left and right side end face of described prestressed concrete slabs is provided with connecting groove, or is distributed in steelThe connecting hole of the both sides end face of reinforced concrete plate.
Can on the upper surface of prestressed concrete slabs, be provided with draw-in groove 15, corresponding lower surface is provided withCan stick into the tenon of draw-in groove. To facilitate adjacent upper and lower single pond body clamping, certainly, prestressed reinforced concreteThe upper and lower end face of plate also can be plane.
The reinforcing steel bars exposed at described prestressed concrete slabs two ends. Described inlet opening is higher than being positioned at topThe openings of Dan Chiti. Apopore is lower than the openings of septic tank unit, place.
When use, complete each assembly of prestressed concrete slabs type combined septic tank in cement products factory,Mechanization factory centralized production makes the quality of each assembly of prestressed concrete slabs type combined septic tankBe able to effective guarantee, the precast combined assembled construction concretize manure pit in construction site, in buildingSewage flow rate is selected each assembly and certainly of the prestressed concrete slabs type combined septic tank of different capabilitiesDetermine the quantity of septic tank unit, each septic tank unit is put in default hole and fixed, openings communicates with each otherAfter, sewage comb in inlet opening and building is joined, last septic tank unit upper that series connection arrangesApopore communicates and then buries septic tank with the total drainage in city. Sewage enters behind a septic tank unitIn it, dirt is first deposited in the bottom of this unit, and clear water flows into another adjacent septic tank list along openingsAfter unit, precipitate again. Obviously, can reach effluent standard through repeatedly precipitating its sewage. Well head seals with well lid, opensOpen and remove contamination.
Embodiment 2: the long 2m of prestressed concrete slabs, wide 1.5m are rectangle, and deformed bar selects diameter8mm cold drawing reinforced bar, deformed bar spacing 9cm, longitudinally cloth diameter 5mm bar spacing 20cm, at long steelIn mould, pre-determined bit installs the module of through hole, connecting groove, adopts the stretch-draw of nut anchor composition on long punching block,Pulling force proof stress scope 0.70fptk, strength grade of concrete is C30, coagulation soil water: cement: sand:Stone (weight) is 0.45: 1: 1.70: 3.73, and wherein strength of cement grade is 42.5, the maximum grain of coarse aggregateFootpath is 20mm. Punching block inner concrete maintenance knot is hard to 75% of concrete design strength, and be 7 the age of concreteIt time, loosen deformed bar, remove the default through hole in concrete members, the module of connecting groove, systemBecome prestressed concrete slabs. All the other structures are described above, therefore be not repeated.
In a word, the present invention makes pond body pressure-bearing wall with prestressed concrete slabs type member, have the duration short, executeWork is easy, crack resistance good, and rigidity is large, saves material, and member dead weight is light, member shear resistance, fatigue resistanceAnd good stability, the low and long-lived advantage of construction cost, this preparation method is simple and practical, can promote and makeWith.
Claims (4)
1. a preparation method for prestressed concrete slabs type combined septic tank, is characterized in that: bagDraw together following steps,
(1) as requested with the size of setting, prepare prestressed concrete slabs, it is pre-that four side direction are holded upStress armoured concrete slab forms the four sides pool wall of a rectangle list pond body, and prestressed concrete slabs is squareShape plate, the preparation of prestressed concrete slabs comprises;
Carry and cut deformed bar, deformed bar length is greater than prestressed concrete slabs length;
In punching block, arrange the long parallel deformed bars of several and plate, in punching block pre-determined bit install through hole,The module of connecting groove;
By after designing requirement prestressed reinforcement of tensioning, be fixed on punching block with ground tackle,
In punching block, build concrete members, strength grade of concrete is C30～C50;
Treat that punching block inner concrete maintenance knot is hard to 75～78% of concrete design strength, and be the age of concrete7～8 days time, loosen deformed bar, remove the default through hole in concrete members, the module of connecting groove,Make prestressed concrete slabs;
(2) preparation is built and is connected inner formword, exterior sheathing, fastener, shuttering fixing rod and the hold-down nut that bight is used,Or fixedly build connect the inner formword used of bight, exterior sheathing and and fixture;
(3) the prestressed concrete slabs head and the tail spacing distance of by designing requirement, four side direction being holded up surroundsRectangle, prestressed concrete slabs pressure-bearing surface is outside, connects bight at four prestressed concrete slabsesEach inner formword, exterior sheathing of placing inner formword, exterior sheathing and being fixedly connected with bight with fixture;
(4) build concrete members, strong concrete to being placed between the each inner formword, exterior sheathing that connects bightDegree grade is C30～C50, and the concrete members of building connects adjacent prestressed concrete slabs shapeBecome to connect bight;
(5) concrete in bight to be connected reaches intensity, removes inner formword, exterior sheathing, makes rectangle and in advance shouldPower armored concrete template list pond body;
(6) the each top cover of casting concrete, by designing requirement reserved well head on the top cover of requirement;
(7) by the building hole of digging combined septic tank under designing requirement, at the bottom of building pit casting concrete pond,On 2～5 single pond bodies being serially connected at the bottom of concrete sump by designing requirement, in single pond on bottom and top, body is coherentPort, top cover is established in the body upper end, single pond at top, forms on the Dan Chiti by 2～5 single pond body serial connections and topEnd is established a septic tank unit of top cover composition, and two above septic tank unit combine side by side, adjacent changeThe openings of manure pit unit interconnects, and the top of a septic tank unit is provided with inlet opening, another septic tankThe top of unit is provided with apopore, and backfill soil, in armored concrete template combined septic tank lateral wall, is preparedBecome prestressed concrete slabs type combined septic tank;
Described deformed bar is cold drawing reinforced bar; Expose at described prestressed concrete slabs two endsReinforcing bar length be 2/3～1/2 of joint angle minister degree;
Described deformed bar and body axis, single pond are in vertical distribution, the spacing of adjacent two deformed barsBe 9～30cm.
2. a prestressed concrete slabs type combined septic tank of preparing by method described in claim 1,Mainly formed by single pond body, be it is characterized in that: the four sides pool wall of Dan Chiti is by four deformed bar coagulationsSoil plate forms, the rectangular framework of single pond body, and prestressed concrete slabs is rectangular slab, adjacent prestress steelThe connection bight that reinforced concrete plate two ends are formed by casting concrete is connected;
On 2～5 single pond bodies are serially connected at the bottom of the concrete sump of building hole, in single pond on bottom and top, body is coherentPort, top cover is established in the body upper end, single pond at top, forms on the Dan Chiti by 2～5 single pond body serial connections and topEnd is established a septic tank unit of top cover composition, and two above septic tank unit combine side by side, adjacent changeThe openings of manure pit unit interconnects, and the top of a septic tank unit is provided with inlet opening, another septic tankThe top of unit is provided with apopore;
Prestressed concrete slabs pressure-bearing surface on described single pond body pool wall is outside;
The left and right side end face of described prestressed concrete slabs is provided with connecting groove, or is distributed in steelThe connecting hole of the both sides end face of reinforced concrete plate.
3. by prestressed concrete slabs type combined septic tank claimed in claim 2, it is characterized in that:The reinforcing steel bars exposed at described prestressed concrete slabs two ends.
4. by prestressed concrete slabs type combined septic tank claimed in claim 2, it is characterized in that:Described inlet opening is higher than the openings that is positioned at single pond, top body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210126217.8A CN102642999B (en) | 2012-04-27 | 2012-04-27 | Preparation method and the septic tank thereof of prestressed concrete slabs type combined septic tank |
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| CN201210126217.8A CN102642999B (en) | 2012-04-27 | 2012-04-27 | Preparation method and the septic tank thereof of prestressed concrete slabs type combined septic tank |
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| CN102642999B true CN102642999B (en) | 2016-05-11 |
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| CN104045216B (en) * | 2014-06-27 | 2016-02-17 | 重庆港力环保股份有限公司 | A kind of biochemistry pool construction method |
| CN110206307B (en) * | 2019-05-18 | 2021-03-16 | 陕西建工第五建设集团有限公司 | Construction method of reinforced concrete septic tank |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE2505835C2 (en) * | 1975-02-12 | 1984-03-22 | Dieter von Dipl.-Ing. 5330 Königswinter Hasselbach | Digested sludge container |
| DD205955A1 (en) * | 1982-06-04 | 1984-01-11 | Bauakademie Ddr | METHOD FOR THE PRODUCTION OF GAS-DENSITY AND HEAT-RESISTANT CONTAINERS OF STEEL OR TENDER CONCRETE |
| RU2191876C2 (en) * | 2000-07-10 | 2002-10-27 | Гольдфельд Игорь Зусьевич | Multipurpose built-up vessel (versions) and method of its construction (versions) |
| CN2711277Y (en) * | 2003-03-31 | 2005-07-20 | 营口水泥制品有限公司 | Sectional and pre-fabricated concrete digestion tank |
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