CN208266712U - A kind of glass reinforced plastic composite concrete box culvert - Google Patents

Abstract

The utility model discloses a kind of glass reinforced plastic composite concrete box culverts, including prefabricated concrete box culvert, and multiple rows of blind hole group is provided in the axial direction on the inner wall of prefabricated concrete box culvert, and every row's blind hole group group includes multiple blind holes；Internal screw thread is machined at the hole wall of each blind hole, upper cover is equipped with fixinig plate, and fixinig plate is fixed on prefabricated concrete box culvert by a fixing bolt being successively inserted into fixinig plate and blind hole；It is once coated with interface resin layer and frp lining layer on the inner wall of prefabricated concrete box culvert, while being coated with glass reinforced plastic reinforcement by connection layer on the outside of the joint and/or exposed fixing bolt of fixinig plate and frp lining layer；The glass reinforced plastic composite concrete box culvert makes the concrete box culvert inner wall be not easy to be corroded by increasing frp lining layer, the service life of effective riser tubing, while the increase of the roughness coefficien of inner wall effectively improves the flow efficiency of liquid in pipeline.

Description

A kind of glass reinforced plastic composite concrete box culvert

Technical field

The utility model relates to plumbing technical field, in particular to a kind of glass reinforced plastic composite concrete box culvert.

Background technique

With the gradual perfection of existing municipal works, transformation is gradually deepened in urban construction, the comprehensive box culvert of precast concrete Using also more and more extensive, whether underground utilities arrangement, water delivery engineering, the comprehensive box culvert of precast concrete is all applicable, but same When it has all existing performance deficiency of most of concrete products: poor, anti-corrosion ability difference of impermeability etc., especially in drainer Cheng Zhong, such defect is particularly evident, pumped (conveying) medium long-time impregnate, infiltration, the reinforcing bar inside box culvert as support frame Structure is corroded, is destroyed, and box culvert overall mechanical properties are declined, and service life reduces.

Utility model content

The purpose of this utility model is to provide one kind under the premise of promoting product cost on a small quantity and be able to ascend concrete box Contain the glass reinforced plastic composite concrete box culvert of anti-permeability performance.

For this purpose, technical solutions of the utility model are as follows:

A kind of glass reinforced plastic composite concrete box culvert, including prefabricated concrete box culvert, in the prefabricated concrete box culvert Multiple rows of blind hole group is provided in the axial direction on wall, every row's blind hole group group includes multiple along the circumferential direction uniformly distributed blind holes, and each Internal screw thread is machined at the hole wall of the blind hole；Lid is equipped with fixinig plate at each blind hole, and each fixinig plate is equal The fixing bolt being successively inserted on the fixinig plate and in the blind hole by one is fixed on the prefabricated concrete box culvert On；Coating and solidifying on the inner wall of the prefabricated concrete box culvert has interface resin layer；Glass is covered on the interface resin layer Steel lining layer wraps on the outside of the joint and/or the exposed fixing bolt of the fixinig plate and the frp lining layer It is covered with glass reinforced plastic reinforcement by connection layer.

Wherein, frp lining layer is there are two types of the set-up modes on the interface resin layer.

Set-up mode one are as follows: the frp lining layer in a manner of contact moudling by being overlying on the interface resin layer Glass reinforced plastic clad is constituted；Wherein, the glass reinforced plastic clad with a thickness of 5~7mm.

Or, set-up mode one are as follows: the frp lining layer is by directly covering the glass on the interface resin layer inner wall Glass steel sheet overlays on the glass reinforced plastic clad on the glass steel sheet and the side with contact moudling in a manner of contact moudling The glass reinforced plastic clad that formula overlays on the corner of interface resin layer is constituted；Wherein, the glass reinforced plastic gauge of sheet is 2~3mm, The glass steel sheet and the thickness summation for overlaying on glass reinforced plastic clad on the glass steel sheet are 5~7mm, overlay on interface tree The glass reinforced plastic clad of the corner of rouge layer with a thickness of 5~7mm.

It is preferred that the hole depth of the blind hole is 20~30mm；The size of the blind hole hole wall internal screw thread is M16~M30.

It is preferred that being coated with structure glue on the contact surface of the fixinig plate and the prefabricated concrete box culvert, make described solid The inner wall of stator and the prefabricated concrete box culvert is adhesively fixed；The blind hole of the fixing bolt and the prefabricated concrete box culvert It is coated with structure glue on the contact surface of interior sidewall surface, is adhesively fixed on the fixing bolt in the blind hole.

It is preferred that the spacing between each adjacent two blind hole being provided on the prefabricated concrete box culvert inner wall is all the same； Spacing between the two neighboring blind hole is 1~1.5m.

It is preferred that the fixinig plate is square plate, the side length of the square plate is 150~200mm, with a thickness of 8~10mm.

It is preferred that the interface resin layer with a thickness of 0.2~0.5mm.

It is preferred that the reinforcement by connection layer with a thickness of 3~5mm.

To be not easy the concrete box culvert inner wall rotten by increasing frp lining layer for the glass reinforced plastic composite concrete box culvert Erosion, while compared to the inner wall roughness coefficien of conventional steel bar concrete box culvert, the roughness coefficien of the concrete box culvert inner wall increases 40%, the flow efficiency of liquid in effective riser tubing；In addition, passing through blind hole, fixing bolt, fixinig plate and reinforcement by connection layer Structure design realizes the anchoring reinforcement effect between frp lining layer and concrete box culvert inner wall, guarantees in its use process It is less prone between frp lining layer and concrete box culvert inner wall and cracking phenomena occurs, the service life of effective riser tubing.

Detailed description of the invention

Fig. 1 is the radial cross-section of the glass reinforced plastic composite concrete box culvert of the utility model；

Fig. 2 is the partial enlargement structural representation of Fig. 1.

Specific embodiment

With reference to the accompanying drawing and specific embodiment is described further the utility model, but following embodiments are right absolutely not The utility model has any restrictions.

As shown in Fig. 1~2, glass reinforced plastic composite concrete box culvert includes prefabricated concrete box culvert 1, in the prefabricated concrete box During culvert, be provided in the axial direction with multiple rows of blind hole group on the inner wall of prefabricated concrete box culvert 1, between adjacent row blind hole group between Away from for 1.5m；Every row's blind hole group group includes 14 along the circumferential direction uniformly distributed blind holes 2, and the spacing between two neighboring blind hole 2 is 1.5m；The depth of each blind hole is 20mm；

After concrete box culvert 1 completes, it is machined with the internal screw thread having a size of M16 at the hole wall of each blind hole 2, and Each 2 upper cover of blind hole is equipped with a fixinig plate 3；Specifically, fixinig plate 3 is the square plate that length × width is 150mm × 150mm, thick Degree is 8mm；Each fixinig plate 3 is fixed on by a fixing bolt 4 being successively inserted into fixinig plate 3 and blind hole 2 prefabricated On concrete box culvert 1；When being fixed on the surface of fixing bolt 3 and fixinig plate 3 smearing structure glue, make bolt and structure glue Play the role of dual fixation；

Then the internal cleaning of prefabricated concrete box culvert 1 is clean, coating and solidifying on the inner wall of box culvert 1 has a thickness Degree is the adhering resin of 0.5mm, is formed with a bed boundary resin layer 5 on the inner wall of box culvert 1 after the completion of resin solidification；

Since concrete box culvert 1 has the smooth inner wall of large area, in order to improve the production efficiency, frp lining Layer 6 is by directly covering the modular glass steel sheet 601 on 5 inner wall of interface resin layer, overlaying on glass in a manner of contact moudling Glass reinforced plastic clad 602 on steel sheet 601 and overlayed in a manner of contact moudling interface resin layer 5 corner glass Ladle coating 602 is constituted；Specifically, first box culvert 1 will be pasted by resin with a thickness of the modular glass steel sheet 601 of 2mm Inner wall on, then again on the interface resin layer 5 on glass steel sheet 601 and positioned at surrounding corner use contact moudling Mode form glass reinforced plastic clad 602, form the corrosion protective covering of tubular body；Wherein, the whole accumulation of glass-lined layer With a thickness of 5mm, that is, overlay on glass reinforced plastic clad 602 on glass steel sheet 601 with a thickness of 3mm, be directly overlying interface resin layer 5 On glass reinforced plastic clad 602 with a thickness of 5mm；

Finally glass is coated on the outside of the joint and/or exposed fixing bolt 4 of fixinig plate 3 and frp lining layer 6 Glass steel reinforcement by connection layer 7；The cladding of the glass reinforced plastic reinforcement by connection layer 7 is with a thickness of 5mm, to prevent in pipeline liquid from joint Gap is penetrated into, and is further increased tube body corrosion resistance, is improved the service life of pipeline.

Claims (9)

1. a kind of glass reinforced plastic composite concrete box culvert, including prefabricated concrete box culvert (1), which is characterized in that described prefabricated mixed Multiple rows of blind hole group is provided in the axial direction on the inner wall of solidifying soil box culvert (1), every row's blind hole group group includes multiple along the circumferential direction uniformly distributed Blind hole (2), and be machined with internal screw thread at the hole wall of each blind hole (2)；Lid is equipped at each blind hole (2) Fixinig plate (3), each fixinig plate (3) is successively inserted on the fixinig plate (3) by one and the blind hole (2) are interior Fixing bolt (4) be fixed on the prefabricated concrete box culvert (1)；It is coated on the inner wall of the prefabricated concrete box culvert (1) And solidification has interface resin layer (5)；Frp lining layer (6) are covered on the interface resin layer (5), in the fixinig plate (3) Add with being coated with glass reinforced plastic on the outside of the joint of the frp lining layer (6) and/or the exposed fixing bolt (4) and connecting Gu layer (7).

2. glass reinforced plastic composite concrete box culvert according to claim 1, which is characterized in that the frp lining layer (6) It is made of the glass reinforced plastic clad (602) being overlying in a manner of contact moudling on the interface resin layer (5)；Wherein, the glass Glass ladle coating (602) with a thickness of 5~7mm.

3. glass reinforced plastic composite concrete box culvert according to claim 1, which is characterized in that the frp lining layer (6) It is described by directly covering the glass steel sheet (601) on interface resin layer (5) inner wall, being overlayed in a manner of contact moudling Glass reinforced plastic clad (602) on glass steel sheet (601) and turning for interface resin layer (5) is overlayed in a manner of contact moudling Glass reinforced plastic clad (602) at angle is constituted；Wherein, the glass steel sheet (601) with a thickness of 2~3mm；The glass reinforced plastic Thin plate (601) and the thickness summation for overlaying on glass reinforced plastic clad (602) on the glass steel sheet (601) are 5~7mm；It overlays on The glass reinforced plastic clad (602) of the corner of interface resin layer (5) with a thickness of 5~7mm.

4. glass reinforced plastic composite concrete box culvert according to claim 1, which is characterized in that the hole depth of the blind hole (2) is 20~30mm；The size of blind hole (2) the hole wall internal screw thread is M16~M30.

5. glass reinforced plastic composite concrete box culvert according to claim 1, which is characterized in that in the fixinig plate (3) and institute It states and is coated with structure glue on the contact surface of prefabricated concrete box culvert (1), make the fixinig plate (3) and the prefabricated concrete box culvert (1) inner wall is adhesively fixed；The fixing bolt (4) connects with blind hole (2) interior sidewall surface of the prefabricated concrete box culvert (1) It is coated with structure glue in contacting surface, is adhesively fixed on the fixing bolt (4) in the blind hole (2).

6. glass reinforced plastic composite concrete box culvert according to claim 1, which is characterized in that be provided with the precast concrete The spacing between each adjacent two blind hole (2) on box culvert (1) inner wall is all the same；Between between the two neighboring blind hole (2) Away from for 1~1.5m.

7. glass reinforced plastic composite concrete box culvert according to claim 1, which is characterized in that the fixinig plate (3) is rectangular The side length of piece, the square plate is 150~200mm, with a thickness of 8~10mm.

8. glass reinforced plastic composite concrete box culvert according to claim 1, which is characterized in that the interface resin layer (5) With a thickness of 0.2~0.5mm.

9. glass reinforced plastic composite concrete box culvert according to claim 1, which is characterized in that the reinforcement by connection layer (7) With a thickness of 3~5mm.