CN214614154U

CN214614154U - Assembled open caisson for building underground sewage tank

Info

Publication number: CN214614154U
Application number: CN202120591568.0U
Authority: CN
Inventors: 朱长安; 董兆力; 李尔泉; 曾照红; 王磊
Original assignee: Cue Co ltd
Current assignee: Cue Co ltd
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2021-11-05
Anticipated expiration: 2031-03-23

Abstract

The utility model discloses an assembled open caisson for building an underground sewage pool, which comprises more than two prefabricated well wall sheets, wherein one side of each well wall sheet is provided with a splicing bulge, and the other side is provided with a splicing groove which is communicated up and down; the wall of a well piece is at least two, the wall of a well piece forms the pool wall of a circular effluent water sump after splicing, characterized by also including the prestressed fastening line, offer the trunking on the outer wall of the wall of a well piece; after the well wall pieces are spliced together, the well wall pieces can be fastened annularly along the wire grooves by using the prestress fastening wires, and prestress is applied to the prestress fastening wires and the prestress fastening wires are locked. The utility model discloses a well wall piece can be produced in advance at prefabricated mill, assembles into circular effluent water sump pool wall and applys prestressing force after transporting the scene, can regard as the well wall of open caisson construction, and the scene need not be formwork again and concreting, can improve the construction speed greatly. The circular shape is convenient for applying prestress, and the well wall has enough rigidity during open caisson construction.

Description

Assembled open caisson for building underground sewage tank

Technical Field

The utility model relates to a field is built to secret effluent water sump, concretely relates to assembled open caisson for building secret effluent water sump.

Background

The open caisson is manufactured on the ground, and is sunk to a designed standard height well body structure by a method of removing the soil body in the well. By adopting the open caisson construction method, the cost of foundation pit support can be saved, the earthwork excavation amount is reduced, and meanwhile, the construction site area can be reduced. At present, open caisson construction is mainly used for water collecting wells, water pump rooms, bridge foundations and the like with large buried depths and small volumes.

The plane of the existing underground sewage treatment tank is generally rectangular, the size of the plane is large, and more inner partition walls are required to be arranged as supports when the open caisson is constructed so as to increase the overall rigidity. However, the arrangement of the inner partition wall influences the soil taking construction efficiency, and meanwhile, in order to meet the requirement of sinking stability of the open caisson, the well wall with the deeper depth needs to be manufactured for multiple times and sunk for multiple times, in addition, in the traditional open caisson construction, a formwork needs to be erected and concrete needs to be poured on site, in addition, the sinking can be carried out after the concrete strength meets the requirement, and the construction period is longer. Therefore, at present, underground sewage treatment tanks constructed by using open caisson are less available.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a solve at least a defect or problem that exists among the background art, provide an assembled open caisson for building secret effluent water sump, can improve the construction speed greatly.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an assembled open caisson for building an underground sewage pool comprises more than two prefabricated well wall sheets, wherein one side of each well wall sheet is provided with a splicing bulge, and the other side of each well wall sheet is provided with a splicing groove which is communicated up and down; the well wall sheet is spliced to form a pool wall of a circular sewage pool, and the pool wall is characterized by also comprising a prestress fastening line, wherein the outer wall of the well wall sheet is provided with a wire slot; after the well wall pieces are spliced together, the well wall pieces can be fastened annularly along the wire grooves by using the prestress fastening wires, and prestress is applied to the prestress fastening wires and the prestress fastening wires are locked.

Preferably, the splicing bulge is continuous from top to bottom.

Preferably, the lower end of the well wall sheet is provided with an inwards convex blade foot.

Preferably, the lower end of the well wall sheet is obliquely arranged to form an inclined plane.

Preferably, a water stop strip is arranged between the joints of the well wall sheets.

Preferably, the well wall sheets are consistent in shape, and the wire grooves are horizontally arranged.

Preferably, the prestressed fastening wire is a steel strand.

Preferably, the well wall sheet is eight.

Compared with the background art, the technical scheme of the utility model, have following advantage:

the utility model discloses a well wall piece can be produced in advance at prefabricated mill, assembles into circular effluent water sump pool wall and applys prestressing force after transporting the scene, can regard as the well wall of open caisson construction, and the scene need not be formwork again and concreting, can improve the construction speed greatly. The circular shape is convenient for applying prestress, and the well wall has enough rigidity during open caisson construction.

Drawings

In order to more clearly illustrate the technical solution of the embodiments, the drawings needed to be used are briefly described as follows:

FIG. 1 is an elevation view of the well wall sheet after splicing;

FIG. 2 is a perspective view of the well wall sheet after splicing;

FIG. 3 is a top view of the well wall sheets prior to splicing;

FIG. 4 is a top view of the well wall sheet after splicing;

FIG. 5 is a schematic view of a junction of two well wall sheets;

FIG. 6 is a schematic view of a section of a well wall sheet;

FIG. 7 is a schematic sectional view of an open caisson in construction;

FIG. 8 is a schematic sectional view of an open caisson after construction;

reference numerals: 10. well wall sheets; 11. splicing the bulges; 12. splicing the grooves; 13. a wire slot; 14. a blade foot; 15. an inclined surface; 20. a pre-stressed fastening wire; 30. a water stop bar; 40. a base plate; 50. a top plate.

Detailed Description

In the description of the present invention, the directions or positional relationships indicated by "up" and "down" are the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and the indication or suggestion that the indicated device must have a specific direction, be constructed and operated in a specific direction is not intended to limit the scope of the present invention.

As shown in fig. 1 to 4, the fabricated open caisson for constructing an underground sewage tank of the present embodiment comprises more than two prefabricated well wall sheets 10, wherein one side of each well wall sheet 10 is provided with a splicing protrusion 11, and the other side is provided with a splicing groove 12 which is through up and down; the wall sheets 10 are at least two, the wall sheets 10 are spliced to form the wall of a circular sewage pool, the wall sheet also comprises a prestress fastening line 20, and the outer wall of the wall sheet 10 is provided with a line slot 13; after the well wall pieces 10 are spliced together, the well wall pieces 10 can be fastened circumferentially along the wire grooves 13 by using the pre-stress fastening wires 20, and the pre-stress fastening wires 20 are prestressed and locked.

Specifically, the splicing protrusion 11 of the present embodiment is continuous from top to bottom.

Specifically, the lower end of the well wall sheet 10 of this embodiment is provided with an inwardly protruding blade foot 14.

Specifically, the lower end of the well wall sheet 10 of the present embodiment is disposed obliquely, forming an inclined surface 15.

Specifically, a water stop strip 30 is provided between the connection points of the well wall sheets 10 of the present embodiment.

Specifically, all the well wall pieces 10 of this embodiment are identical in shape, the wire chase 13 is horizontally arranged, and after being spliced together, the wire chase 13 of each well wall piece 10 is horizontally positioned on the same horizontal plane to form a circle of grooves.

Specifically, the prestressed fastening wire 20 of the present embodiment is a steel strand.

Specifically, the well wall sheet 10 of the present embodiment is eight sheets.

The utility model discloses a method that assembled open caisson is used for building secret effluent water sump is as follows:

the method comprises the following steps: the well wall sheet 10 produced in advance in a prefabricating factory is transported to the site and then positioned and assembled into a circular sewage pool wall, the wire groove 13 is used for binding the well wall sheet 10 by the prestress fastening wire 20, and prestress is applied to the prestress fastening wire 20 and locked.

Step two: soil is taken from the inner part of the circular sewage pool wall, and the whole circular sewage pool wall sinks by overcoming the friction force by self gravity to reach the designed depth.

Step three: and pouring bottom sealing concrete at the bottom of the wall of the circular sewage pool, binding bottom plate reinforcing steel bars, and pouring bottom plate 40 concrete.

Step four: a pool roof 50 is constructed.

The utility model discloses a well wall piece can be produced in advance at prefabricated mill, assembles into circular effluent water sump pool wall and applys prestressing force after transporting the scene, can regard as the well wall of open caisson construction, and the scene need not be formwork again and concreting, can improve the construction speed greatly. The circular shape is convenient for applying prestress, and the well wall has enough rigidity during open caisson construction. The edge foot can be used for adjusting the sinking stability coefficient and can be used as a support of a late bottom plate.

The description of the above specification and examples is intended to illustrate the scope of the invention, but should not be construed as limiting the scope of the invention.

Claims

1. An assembled open caisson for building an underground sewage pool comprises more than two prefabricated well wall sheets, wherein one side of each well wall sheet is provided with a splicing bulge, and the other side of each well wall sheet is provided with a splicing groove which is communicated up and down; the well wall sheet is spliced to form a pool wall of a circular sewage pool, and the pool wall is characterized by also comprising a prestress fastening line, wherein the outer wall of the well wall sheet is provided with a wire slot; after the well wall pieces are spliced together, the well wall pieces can be fastened annularly along the wire grooves by using the prestress fastening wires, and prestress is applied to the prestress fastening wires and the prestress fastening wires are locked.

2. The fabricated caisson for use in constructing an underground sewage pond, according to claim 1, wherein said splicing projections are continuous from top to bottom.

3. The fabricated caisson for use in constructing an underground sewage pond, according to claim 1, wherein said lower end of said well wall sheet is provided with inwardly protruding cutting legs.

4. The fabricated caisson for use in constructing an underground sewage pond, according to claim 3, wherein said lower end of said well wall sheet is inclined to form an inclined surface.

5. The fabricated open caisson for use in constructing an underground sewage pond, according to claim 1, wherein a water stop bar is provided between the junctions of said well wall sheets.

6. The assembly caisson for construction of underground sewage pool, according to any of claims 1 to 5, wherein said well wall pieces are uniform in shape and said wire chase is horizontally disposed.

7. The fabricated open caisson for construction of underground sewage Powers, according to claim 6, wherein said prestressed fastening lines are steel stranded wires.

8. The fabricated caisson for use in constructing an underground lagoon of claim 7, wherein the well wall sheet is eight.