CN201093126Y

CN201093126Y - Projection type jack steel loop prestressed concrete top pipe

Info

Publication number: CN201093126Y
Application number: CNU2007201001492U
Authority: CN
Inventors: 赵斌; 张亮
Original assignee: Tianjin Waterline Pipeline Engineering Co Ltd
Current assignee: Tianjin Waterline Pipeline Engineering Co Ltd
Priority date: 2007-10-25
Filing date: 2007-10-25
Publication date: 2008-07-30
Anticipated expiration: 2017-10-25

Abstract

The utility model relates to a convex socket steel loop inherent stress concrete pushing pipe and consists of a steel socket, a cylindrical steel reinforcement frame, a concrete pipe core, an inherent stress steel wire and a protective layer. The steel socket is fixed and arranged on one end of the concrete pipe core, the cylindrical steel reinforcement frame is coaxially embedded inside the concrete pipe core, the exterior wall of the concrete pipe core is fixed and provided with the protective layer and the inherent stress steel wire is wound on the exterior wall of the concrete pipe core in the protective layer. A socket steel loop is coaxially fixed and arranged on the exterior wall of the socket end of the concrete pipe core and the diameter of the exterior wall of the socket steel loop is larger than the diameter of the exterior wall of the concrete pipe core socket. The convex socket steel loop inherent stress concrete pushing pipe has the advantages of simple structure, scientific and reasonable design, excellent impermeability, low cost, pressure resistance, corrosion resistance and firm socket and is a convex socket steel loop inherent stress concrete pushing pipe with higher innovativeness.

Description

Prestressed concrete ceiling coil for steel ring with extrusion type insertion opening

Technical field

The utility model relates to concrete plug, especially a kind of prestressed concrete ceiling coil for steel ring with extrusion type insertion opening.

Background technique

In concrete plug, concrete ceiling coil is used comparatively extensive, especially under the occasion of operation of can not slotting.Mainly being configured to of present concrete ceiling coil: concrete pipe in-core setting-in Framework Of Steel Reinforcement pipe cage, this Framework Of Steel Reinforcement pipe cage is to be installed by bearing rod by two coaxial cylindrical reinforcement frames to form, concrete tube core one end installs the steel bellmouth, its socket end forms for the cast of concrete one, though this kind concrete ceiling coil can carry out jacking construction, but still have following defective: 1. concrete tube core socket end is the concrete one-time cast-forming, damaged in the collision of jacking construction easily, cause the generation of spillage phenomenon, the process and the construction quality of influence construction; 2. to bear the external pressure weight bearing power lower for tubing integral body; 3. the tubing cost is higher, and the fabricating cost of first Framework Of Steel Reinforcement pipe cage is higher, and it two is that the cost of material of Framework Of Steel Reinforcement pipe cage is higher; 4. the impermeability of tubing integral body is relatively poor.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of simple in structure, impermeability good, cost is low, withstand voltage, corrosion-resistant and prestressed concrete ceiling coil for steel ring with extrusion type insertion opening that socket is firm.

The utility model solves its technical problem and is achieved through the following technical solutions:

A kind of prestressed concrete ceiling coil for steel ring with extrusion type insertion opening; by the steel bellmouth; cylindrical reinforcement frame; the concrete tube core; reinforcement wire and protective layer constitute; the steel bellmouth is packed in an end of concrete tube core; the coaxial concrete pipe in-core that is embedded in of cylindrical reinforcement frame; the concrete pipe outer core installs on protective layer and the concrete pipe outer core in this protective layer and is wound with reinforcement wire; it is characterized in that: install a socket steel ring in that concrete tube core socket end outer wall is coaxial, and the outer diameter of this socket steel ring is greater than the outer diameter of concrete tube core socket.

And described cylindrical reinforcement frame is installed by circumferential reinforcement and longitudinal steel bar and forms.

And described protective layer is concrete cover or glass fibre reinforced plastics protective layer.

Advantage of the present utility model and beneficial effect are:

1. the coaxial socket steel ring that installs of concrete tube core socket end outer wall of this prestressed concrete ceiling coil for steel ring with extrusion type insertion opening, can effectively avoid in tubing jacking construction process owing to the destruction of collision tubing socket end, reduced the incidence rate of spillage phenomenon, construction progress and construction quality have been improved, and the outer diameter of this socket steel ring is greater than concrete tube core socket outer diameter, the outer wall of itself and concrete tube core projection forms a groove, O-ring seal is installed in this groove, make that cushion rubber is not easy to be distorted in the jack-in process, thereby improved construction quality.

2. the concrete pipe outer core of this prestressed concrete ceiling coil for steel ring with extrusion type insertion opening is wound with reinforcement wire, and the concrete pipe in-core is embedded with Framework Of Steel Reinforcement, strengthened this tubing opposing external pressure weight bearing power, and reaching under the situation of equal withstand voltage level, reduced the use amount of steel, saved the cost of raw material, and this Framework Of Steel Reinforcement is to be installed by circumferential reinforcement and longitudinal steel bar to make, has reduced the fabricating cost of Framework Of Steel Reinforcement.

3. the concrete pipe outer core of this prestressed concrete ceiling coil for steel ring with extrusion type insertion opening is fixed with concrete cover, has improved the impervious and decay resistance of tubing integral body, has prolonged the working life of tubing.

4. the utility model overall structure is very simple, and design science is reasonable, and impermeability is good, cost is low, withstand voltage, corrosion-resistant and socket is firm, is the higher prestressed concrete ceiling coil for steel ring with extrusion type insertion opening of a kind of novelty.

Description of drawings

Fig. 1 is a structure cross-sectional schematic of the present utility model;

Fig. 2 is the A bilge construction enlarged view of Fig. 1.

Embodiment

The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.

This prestressed concrete ceiling coil for steel ring with extrusion type insertion opening; by steel bellmouth 7; cylindrical reinforcement frame 4; concrete tube core 3; reinforcement wire 5 and protective layer 6 constitute; the steel bellmouth is packed in an end of concrete tube core; the coaxial concrete pipe in-core that is embedded in of cylindrical reinforcement frame; this cylindrical reinforcement frame is welded by circumferential reinforcement and longitudinal steel bar; the concrete pipe outer core is fixed with concrete cover and twines reinforcement wire on concrete cover inner concrete tube core outer wall; the utility model also can adopt glass fibre reinforced plastics as protective layer (the present embodiment accompanying drawing is depicted as concrete cover); wherein at the coaxial socket steel ring 1 that installs of concrete tube core socket end outer wall; and the outer diameter of this socket steel ring is greater than concrete tube core socket outer diameter; the outer wall of itself and concrete tube core projection forms a groove 2; in this groove O-ring seal can be installed; the bellmouth when making mutual installation the and the socket of adjacent push pipe have better joint water closure; even under the situation of foundation settlement; socket steel ring can ensure effectively that also concrete tube core socket is not damaged; improve the seal of whole pipeline, prevented inside and outside water body UNICOM.

The utility model adopts the concrete secondary moulding by casting, cylindrical reinforcement frame is fixed by mould, be inlaid in the concrete pipe in-core through concrete placement for the first time, after the concrete pipe outer core winds reinforcement wire, carry out the concrete placement second time, promptly obtain the utility model prestressed concrete ceiling coil for steel ring with extrusion type insertion opening.

The cylindrical reinforcement frame of this prestressed concrete ceiling coil for steel ring with extrusion type insertion opening also can be by two coaxial cylindrical reinforcement frame pipe cage type formulas that form that install by bearing rod of coaxial cylindrical reinforcing bar cage.

Claims

1. prestressed concrete ceiling coil for steel ring with extrusion type insertion opening; by the steel bellmouth; cylindrical reinforcement frame; the concrete tube core; reinforcement wire and protective layer constitute; the steel bellmouth is packed in an end of concrete tube core; the coaxial concrete pipe in-core that is embedded in of cylindrical reinforcement frame; the concrete pipe outer core installs on protective layer and the concrete pipe outer core in this protective layer and is wound with reinforcement wire; it is characterized in that: install a socket steel ring in that concrete tube core socket end outer wall is coaxial, and the outer diameter of this socket steel ring is greater than the outer diameter of concrete tube core socket.

2. prestressed concrete ceiling coil for steel ring with extrusion type insertion opening according to claim 1 is characterized in that: described cylindrical reinforcement frame is installed by circumferential reinforcement and longitudinal steel bar and forms.

3. prestressed concrete ceiling coil for steel ring with extrusion type insertion opening according to claim 1 is characterized in that: described protective layer is concrete cover or glass fibre reinforced plastics protective layer.