CN114570071B - Construction method of inverted cone-shaped sewage treatment sedimentation tank combined structure - Google Patents
Construction method of inverted cone-shaped sewage treatment sedimentation tank combined structure Download PDFInfo
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- CN114570071B CN114570071B CN202210254349.2A CN202210254349A CN114570071B CN 114570071 B CN114570071 B CN 114570071B CN 202210254349 A CN202210254349 A CN 202210254349A CN 114570071 B CN114570071 B CN 114570071B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0003—Making of sedimentation devices, structural details thereof, e.g. prefabricated parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/003—Sedimentation tanks provided with a plurality of compartments separated by a partition wall
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H4/00—Swimming or splash baths or pools
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H4/00—Swimming or splash baths or pools
- E04H4/0075—Swimming or splash baths or pools made of concrete
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/208—Off-grid powered water treatment
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- Civil Engineering (AREA)
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- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention belongs to the technical field of construction of sewage treatment sedimentation tanks, and particularly relates to a construction method of a combined structure of an inverted cone-shaped sewage treatment sedimentation tank, which adopts a combined decomposition construction mode, firstly carries out building construction of a circular wall body, then completes filling of internal foaming concrete according to size positioning and slope elevation construction, leads the interior of the structure to be full and compact, can form an operation surface convenient for construction after the filled foaming concrete reaches the strength, carries out accurate positioning and size control construction on the surface of the foaming concrete, constructs inverted cone cover plate concrete through a series of constructions such as internal support, internal filling, upper part accurate control and the like, has simple construction process and higher construction efficiency; meanwhile, the construction of large-volume concrete is avoided, the crack resistance is better, the construction size is accurately controlled, and the good structural construction effect is achieved.
Description
Technical Field
The invention relates to a construction method of an inverted cone-shaped sewage treatment sedimentation tank combined structure, and belongs to the technical field of sewage treatment sedimentation tank construction.
Background
With the continuous acceleration of the industrial production process in China, in the construction of industrial building sewage treatment plants, a sedimentation tank is taken as an important part in a sewage treatment structure, the construction process of the inverted cone-shaped structure is complex, the required parameters of equipment installation are high, and the quality of the construction quality control directly determines the treatment efficiency and the use function of the sewage treatment equipment.
The construction of sedimentation tank divides main part construction and secondary structure construction, and equipment fixing requires the precision high, has just so proposed higher requirement to the knot configuration type, both will satisfy the structure reliable, will satisfy its tapered funnel's service function again. The traditional method is to fill lightweight aggregate concrete for secondary slope finding and pouring, the construction of the method has the defects that the amount of the filled lightweight aggregate concrete is large, the lightweight aggregate concrete cannot be pumped, only manual transportation is adopted, the transportation efficiency is low, the size difficulty of the inverted conical surface is very large when the inverted conical surface is constructed for one-step forming, and the construction efficiency is low; meanwhile, the poured and formed concrete is easy to crack due to the complex shape of the concrete, so that the hidden danger of crack leakage of the surface anticorrosive coating can be caused, and the construction quality is poor.
Disclosure of Invention
According to the defects in the prior art, the technical problems to be solved by the invention are as follows: the construction method of the inverted cone-shaped sewage treatment sedimentation tank combined structure is high in construction efficiency and good in construction quality.
The construction method of the inverted cone-shaped sewage treatment sedimentation tank composite structure comprises the following steps,
s1, building a plurality of circular wall bodies by taking embedded parts in a sedimentation tank body as circle centers, wherein the circular wall bodies are higher and higher from inside to outside;
s2, pouring foaming concrete between two adjacent circular ring-shaped wall bodies and between the outermost circular ring-shaped wall body and the sedimentation tank body;
s3, when the strength of the concrete to be foamed is increased to the surface of the concrete to be foamed to form an operable surface, arranging a conical surface elevation positioning control pile on the operable surface;
s4, fixing the die body with the inverted frustum shape at the position of the embedded part;
s5, positioning and pouring inverted cone-shaped cover plate concrete according to the conical surface elevation set in the step S3;
s6, after the cover plate concrete is poured for a certain time, taking out the die body in the step S4, and timely collecting the cover plate concrete;
s7, building inclined planes at four corners in the sedimentation tank body.
And hanging a perpendicular line from the line weight to the bottom of the sedimentation tank at the central hole of the top plate of the sedimentation tank, marking the contact point of the line weight and the embedded part as a central point, and building the annular wall body by taking the central point as the center of a circle.
The axis of the mold body fixed in the step S4 corresponds to the central point.
The density grade of the foamed concrete poured in the step S2 is 400kg/m 3 -600kg/m 3 。
The strength of the foamed concrete in step S3 is 1.2MPa or more to allow the next step of construction.
Before the step S5, a reinforcing mesh is bound to the operation surface of the foamed concrete, and the cover plate concrete 4 in the step S5 is poured on the reinforcing mesh.
The concrete for the cover plate in the step S5 is laid in a direction from top to bottom.
And the closing time of the cover plate concrete in the step S6 is controlled to be 3-8 hours after the material distribution is finished.
And after the building of the clinoid in the step S7 is finished, plastering treatment is carried out by adopting cement mortar.
The working principle and the process are as follows:
the method comprises the following steps of adopting a combined decomposition construction mode, firstly carrying out annular wall masonry construction, then completing filling of internal foaming concrete according to size positioning and slope elevation construction, enabling the interior of the structure to be full and compact, forming an operation surface convenient for construction after the filled foaming concrete reaches the strength, implementing accurate positioning and size control on the surface of the foaming concrete, constructing inverted cone cover plate concrete, and carrying out a series of constructions such as internal supporting, internal filling and upper accurate control of the structure, wherein the construction process is simple and the construction efficiency is higher; meanwhile, the construction of large-volume concrete is avoided, the crack resistance is better, the construction size is accurately controlled, and the good structural construction effect is achieved.
Compared with the prior art, the invention has the following beneficial effects:
the construction method of the inverted cone-shaped sewage treatment sedimentation tank combined structure adopts a decomposition type construction mode, and is high in construction efficiency and good in construction effect.
Drawings
FIG. 1 is a plan view of a settling tank constructed according to the construction method of the present invention;
fig. 2 is a sectional view of a settling pond constructed according to the construction method of the present invention.
In the figure: 1. a sedimentation tank body; 2. a circular wall body; 3. embedding parts; 4. concrete of the inverted cone-shaped cover plate; 5. an inclined plane body; 6. foaming concrete; 7. a top plate of the sedimentation tank; 8. a central bore.
Detailed Description
Embodiments of the invention are further described below with reference to the accompanying drawings:
example 1:
as shown in figures 1 and 2, the construction method of the inverted cone sewage treatment sedimentation tank combined structure comprises the following steps,
s1, building a plurality of annular walls 2 by taking embedded parts 3 in a sedimentation tank body 1 as circle centers, wherein the annular walls 2 are higher from inside to outside, when the annular walls 2 are built, firstly determining the lowest elevation of the circle centers as the lowest control point of the circle centers according to the drawing size, then calculating the locating point of the farthest joint wall according to the drawing gradient size, determining the highest point and the lowest point to finish the connection of a back-pull construction line, and then expanding a distance outwards from the circle centers to obtain the elevation of the annular walls 2, so that the target annular walls 2 are built, a foundation is laid for the construction of subsequent conical structure slopes, and the annular walls 2 are built by porous bricks, so that the compressive strength can be ensured, and the water environment can be met;
s2, pouring foamed concrete 6 between two adjacent circular ring-shaped walls 2 and between the outermost circular ring-shaped wall 2 and the sedimentation tank body 1, wherein the weight of the foamed concrete 6 is smaller than that of common concrete so as to meet the requirement of light load of the sedimentation tank structure, meanwhile, the foamed concrete 6 can be filled by adopting a special conveying pump, the filled walls which are built are compact and full, and the elevation control of the filled walls is the same as the elevation of the finished circular ring-shaped wall 2;
s3, when the strength of the concrete 6 to be foamed is increased to the surface of the concrete to be foamed to form an operable surface, arranging a conical surface elevation positioning control pile on the operating surface, determining the elevation of the lowest point of a cone at the center of a circle according to a drawing, then calculating the elevation of a joint pool body positioning point at the farthest position according to the gradient size of the drawing, determining that the connection of a back-pull construction line is completed at the highest point and the lowest point, arranging elevation positioning piles at each distance from the center of the circle outwards along the direction of the construction line, wedging a phi 12 steel bar into the foamed concrete 6 for manufacturing, marking the elevation of a conical slope surface at the intersection point of the construction line and the positioning pile, arranging positioning piles with the same elevation on concentric circles in different directions of the conical surface, guiding and measuring the elevation of the positioning pile in the same circle by using an infrared laser leveling instrument, controlling the error to be +/-2 mm, and finishing the fine positioning of the whole conical slope surface by the control pile after the setting of the elevation positioning pile;
s4, fixing the die body with the inverted frustum shape at the embedded part 3;
s5, positioning and pouring inverted cone-shaped cover plate concrete 4 according to the conical surface elevation set in the step S3;
s6, pouring the cover plate concrete 4 for a certain time, then taking out the mould body in the step S4, and timely folding the cover plate concrete 4;
s7, building inclined planes 5 at four corners in the sedimentation tank body 1.
The method comprises the following steps of adopting a combined decomposition construction mode, firstly carrying out masonry construction on the annular wall body 2, then completing filling of the internal foamed concrete 6 according to size positioning and slope elevation construction, enabling the interior of the structure to be full and compact, forming an operation surface convenient for construction after the filled foamed concrete 6 reaches the strength, carrying out accurate positioning and size control construction on the surface of the foamed concrete 6 to construct the inverted conical cover plate concrete 4, and carrying out a series of construction such as internal support, internal filling and upper accurate control of the structure, wherein the construction process is simple and the construction efficiency is higher; meanwhile, the construction of large-volume concrete is avoided, the crack resistance is better, the construction size is accurately controlled, and the good structural construction effect is achieved.
The construction method of the inverted cone-shaped sewage treatment sedimentation tank combined structure adopts a decomposition type construction mode, and is high in construction efficiency and good in construction effect.
Example 2:
as shown in figures 1 and 2, the construction method of the inverted cone sewage treatment sedimentation tank combined structure comprises the following steps,
s1, building a plurality of annular walls 2 by taking embedded parts 3 in a sedimentation tank body 1 as circle centers, wherein the annular walls 2 are higher and higher from inside to outside;
s2, pouring foamed concrete 6 between two adjacent circular ring-shaped wall bodies 2 and between the outermost circular ring-shaped wall body 2 and the sedimentation tank body 1;
s3, when the strength of the concrete 6 to be foamed is increased to the surface of the concrete to be foamed to form an operable surface, arranging a conical surface elevation positioning control pile on the operable surface;
s4, fixing the die body with the inverted frustum shape at the embedded part 3;
s5, positioning and pouring inverted cone-shaped cover plate concrete 4 according to the conical surface elevation set in the step S3;
s6, pouring the cover plate concrete 4 for a certain time, then taking out the die body in the step S4, and timely collecting the cover plate concrete 4;
s7, building inclined planes 5 at four corners in the sedimentation tank body 1.
The method comprises the following steps of adopting a combined decomposition construction mode, firstly carrying out masonry construction on the annular wall body 2, then finishing filling of the internal foamed concrete 6 according to size positioning and slope elevation construction, enabling the interior of the structure to be full and compact, forming an operation surface convenient for construction after the filled foamed concrete 6 reaches the strength, implementing accurate positioning and size control construction on the surface of the foamed concrete 6, and carrying out a series of construction such as internal support, internal filling and upper accurate control on the structure, wherein the construction process is simple, and the construction efficiency is higher; meanwhile, the construction of large-volume concrete is avoided, the crack resistance is good, the construction size is accurately controlled, and therefore a good structural construction effect is achieved.
A plumb line is hung to the bottom of the sedimentation tank by a line weight at a central hole 8 of a top plate 7 of the sedimentation tank, the contact point of the line weight and the embedded part 3 is marked as a central point, the circular wall body 2 is built by taking the central point as the center of a circle, and the position is more accurate;
the axis of the die body fixed in the step S4 corresponds to the central point, so that the position is more accurate;
the density grade of the foamed concrete 6 poured in the step S2 is 400kg/m 3 -600kg/m 3 The weight of the concrete is 1/7-1/6 of that of the common concrete, and the requirement of light load of the sedimentation tank structure is met;
the growth strength of the foamed concrete 6 in the step S3 is 1.2MPa or more, and the surface thereof is formed into an operable surface in the next step;
before the step S5, a reinforcing mesh is bound on the operation surface of the foamed concrete 6, and the cover plate concrete 4 in the step S5 is poured on the reinforcing mesh, so that the stability of the structure is improved;
in the step S5, the cover concrete 4 is poured by spreading and distributing in the direction from top to bottom, so that the construction is simpler;
the closing time of the cover plate concrete 4 in the step S6 is controlled to be 3-8 hours after the material distribution is finished, and the time control is reasonable;
and after the inclined plane body 5 in the step S7 is built, plastering treatment is carried out by adopting cement mortar, the cement mortar adopts the proportion of 1.
The construction method of the inverted cone-shaped sewage treatment sedimentation tank combined structure adopts a decomposition type construction mode, and is high in construction efficiency and good in construction effect.
Claims (9)
1. The construction method of the inverted cone-shaped sewage treatment sedimentation tank combined structure is characterized by comprising the following steps of: comprises the following steps of (a) carrying out,
s1, building a plurality of circular wall bodies (2) by taking embedded parts (3) in a sedimentation tank body (1) as circle centers, wherein the circular wall bodies (2) are higher and higher from inside to outside;
s2, pouring foamed concrete (6) between two adjacent circular ring-shaped walls (2) and between the outermost circular ring-shaped wall (2) and the sedimentation tank body (1);
s3, when the strength of the concrete (6) to be foamed is increased to the surface of the concrete to be foamed to form an operable surface, arranging a conical surface elevation positioning control pile on the operable surface;
s4, fixing the die body with the inverted frustum shape at the embedded part (3);
s5, positioning and pouring inverted cone-shaped cover plate concrete (4) according to the conical surface elevation set in the step S3;
s6, pouring the cover plate concrete (4) for a certain time, then taking out the die body in the step S4, and timely collecting the cover plate concrete (4);
s7, building inclined planes (5) at four corners in the sedimentation tank body (1).
2. The construction method of the inverted-cone-shaped sewage treatment sedimentation tank combined structure according to claim 1, characterized in that: and (3) hanging a perpendicular line from a central hole (8) of a top plate (7) of the sedimentation tank to the bottom of the sedimentation tank by using a line pendant, marking the contact point of the line pendant and the embedded part (3) as a central point, and building the circular wall body (2) by taking the central point as the center of a circle.
3. The construction method of the inverted cone-shaped sewage treatment sedimentation tank combined structure according to claim 2, characterized in that: and the axis of the die body fixed in the step S4 corresponds to the central point.
4. The construction method of the inverted-cone-shaped sewage treatment sedimentation tank combined structure according to claim 1, characterized in that: the density grade of the foamed concrete (6) poured in the step S2 is 400kg/m 3 -600kg/m 3 。
5. The construction method of the inverted-cone-shaped sewage treatment sedimentation tank combined structure according to claim 1, characterized in that: and the growth strength of the foamed concrete (6) in the step S3 is more than 1.2 MPa.
6. The construction method of the inverted-cone-shaped sewage treatment sedimentation tank combined structure according to claim 1, characterized in that: before the step S5, a reinforcing mesh is bound on the operation surface of the foamed concrete (6), and the cover plate concrete (4) in the step S5 is poured on the reinforcing mesh.
7. The construction method of the inverted-cone-shaped sewage treatment sedimentation tank combined structure according to claim 1, characterized in that: and the step S5 of pouring the cover plate concrete (4) adopts a direction from top to bottom to pave and distribute.
8. The construction method of the inverted-cone-shaped sewage treatment sedimentation tank combined structure according to claim 1, characterized in that: and the surface collecting time of the cover plate concrete (4) in the step S6 is controlled to be 3-8 hours after the material distribution.
9. The construction method of the inverted cone-shaped sewage treatment and sedimentation tank combined structure according to claim 1, characterized in that: and after the slant body (5) in the step S7 is built, cement mortar is adopted for plastering treatment.
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Citations (7)
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| KR101543533B1 (en) * | 2014-06-02 | 2015-08-10 | 주식회사 도화엔지니어링 | Integrated sludge discharging apparatus for settling pond |
| CN206752862U (en) * | 2017-05-11 | 2017-12-15 | 南京市裕和建设有限公司 | Inverted roof waterproof construction based on durability |
| CN109395436A (en) * | 2018-11-30 | 2019-03-01 | 中国冶集团有限公司 | Major diameter inverted cone pond groove bottom taper degree control device and control method |
| CN109626764A (en) * | 2019-02-25 | 2019-04-16 | 安庆师范大学 | A kind of biological treatment system for sponge urban rainwater purification |
| CN110453954A (en) * | 2019-09-10 | 2019-11-15 | 中煤第六十八工程有限公司 | A kind of silo funnel structure and its construction method |
| KR102045189B1 (en) * | 2019-06-18 | 2019-11-15 | 하나엔비텍(주) | Construction method of sedimentation tank using buried formwork |
| CN211775746U (en) * | 2020-01-17 | 2020-10-27 | 广东省建筑工程集团有限公司 | Sewage treatment pond cone basis steel form and matrix connection structure thereof |
-
2022
- 2022-03-15 CN CN202210254349.2A patent/CN114570071B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101543533B1 (en) * | 2014-06-02 | 2015-08-10 | 주식회사 도화엔지니어링 | Integrated sludge discharging apparatus for settling pond |
| CN206752862U (en) * | 2017-05-11 | 2017-12-15 | 南京市裕和建设有限公司 | Inverted roof waterproof construction based on durability |
| CN109395436A (en) * | 2018-11-30 | 2019-03-01 | 中国冶集团有限公司 | Major diameter inverted cone pond groove bottom taper degree control device and control method |
| CN109626764A (en) * | 2019-02-25 | 2019-04-16 | 安庆师范大学 | A kind of biological treatment system for sponge urban rainwater purification |
| KR102045189B1 (en) * | 2019-06-18 | 2019-11-15 | 하나엔비텍(주) | Construction method of sedimentation tank using buried formwork |
| CN110453954A (en) * | 2019-09-10 | 2019-11-15 | 中煤第六十八工程有限公司 | A kind of silo funnel structure and its construction method |
| CN211775746U (en) * | 2020-01-17 | 2020-10-27 | 广东省建筑工程集团有限公司 | Sewage treatment pond cone basis steel form and matrix connection structure thereof |
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