CN210369032U

CN210369032U - Socket type precast concrete assembled retaining wall unit and assembled retaining wall thereof

Info

Publication number: CN210369032U
Application number: CN201921070795.8U
Authority: CN
Inventors: 姚天宇; 贲翔; 张德平; 李鹏宇; 徐默; 项春雷; 马卫华; 李新新; 王安宇
Original assignee: Jianhua Building Materials (heilongjiang) Co Ltd; Harbin Municipal Engineering Design Institute
Current assignee: Harbin Municipal Engineering Design Institute Co ltd; Jianhua Building Materials Heilongjiang Co ltd
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2020-04-21
Anticipated expiration: 2029-07-10

Abstract

The utility model discloses a barricade unit that socket formula precast concrete was assembled and assemble barricade thereof, barricade unit include wall bottom plate and wall backplate, pre-buried a plurality of first reinforcing bars that have the exposure of perpendicular to wall bottom plate on the wall bottom plate, pre-buried a plurality of second reinforcing bars that have the exposure of vertical setting on the wall backplate, the part upper surface of wall bottom plate is provided with inside sunken cast-in-place area, open in the cast-in-place area has the preformed hole, wall backplate bottom is provided with the boss, and the boss on the wall backplate inserts in the preformed hole of wall bottom plate, and first reinforcing bar and second reinforcing bar welded connection have filled the mortar in the seam in the preformed hole and the cast-in-place area to connect wall bottom plate and wall backplate as whole. The assembled retaining wall comprises a plurality of groups of retaining wall units, and adjacent retaining wall units are connected by adopting a tenon and groove structure. The utility model discloses prefabricated production, the on-the-spot connection is assembled swiftly, but rigidity is good, intensity is big, construction speed is fast, construction in winter reduces engineering cost.

Description

Socket type precast concrete assembled retaining wall unit and assembled retaining wall thereof

Technical Field

The utility model relates to a barricade unit that socket formula precast concrete was assembled and assemble barricade thereof.

Background

The concrete retaining wall is a supporting and retaining structure widely applied in civil engineering, and is used for supporting structures of roadbed filling or hillside soil bodies and preventing the filling or the soil bodies from deforming and destabilizing. In engineering construction, cast-in-place concrete retaining walls are often used for projects such as slope management, approach bridge retaining, height difference supporting and the like.

The wall body of traditional concrete retaining wall structure is a wall of whole pouring, generally for adopting the barricade that the plank sheathing formwork poured, and the method of preparation concrete barricade is: firstly, excavating a foundation trench on site, and then laying a cushion layer. After the cushion layer is paved, a formwork is erected on the spot to erect the reinforcing steel bars, and finally the wall body is cast by concrete. During construction, the filling operation can be performed only when the poured concrete reaches the designed strength value. The whole construction period is long, and the development of subsequent engineering is influenced; secondly, the in-situ cast retaining wall is greatly restricted by the environment, particularly in northeast cold climate, and the in-situ cast concrete can hardly reach the design strength in time; thirdly, the site pouring retaining wall needs more site operation personnel, and the physical labor volume is great, and construction human cost is high, and the template can not carry out reuse, and on the one hand the material is more extravagant, and on the other hand efficiency of construction is not high.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a barricade unit that socket formula precast concrete was assembled and assemble barricade thereof has solved the construction cycle length, can not reach design strength, problem such as construction cost height.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a barricade unit that socket formula precast concrete was assembled, includes wall bottom plate and wall backplate, pre-buried a plurality of first reinforcing bars that have the exposure of perpendicular to wall bottom plate on the wall bottom plate, pre-buried a plurality of second reinforcing bars that have the exposure of vertical setting on the wall backplate, the part upper surface of wall bottom plate is provided with inside sunken cast-in-place area, open in the cast-in-place area has the preformed hole, wall backplate bottom is provided with the boss, and the boss on the wall backplate inserts in the preformed hole of wall bottom plate, and first reinforcing bar and second reinforcing bar welded connection, and the seam in the preformed hole and cast-in-place in-band have been filled with the mortar to be whole with wall bottom plate and wall backplate connection.

Further, the first and second rebars correspond in position.

Further, the position of the exposed combined portion of the first reinforcing bar and the second reinforcing bar is located within the cast-in-place zone.

Further, the socket type precast concrete assembled retaining wall comprises a plurality of groups of retaining wall units, and adjacent retaining wall units are connected by adopting a tenon and groove structure.

(III) advantageous effects

The utility model provides a barricade unit that socket formula precast concrete was assembled and assemble barricade thereof. The beneficial effects are that: the device is prefabricated in a modularized mode, small in size, convenient to transport and combine, and compared with the traditional method of erecting reinforcing steel bars and pouring walls on construction site formwork erection, the device is more convenient to use, short in construction period and quick in effect. The wall back plate is provided with the convex joints which penetrate through the preformed holes and are temporarily fixed in the preformed holes without extra supporting measures. Gaps are reserved between the convex sections and the reserved holes so that concrete can flow in the gaps, and the wall bottom plate and the wall back plate form a unified whole after the concrete is solidified. The cast-in-place belt is internally poured with concrete for fixation, and the joint surface of new and old concrete is increased, so that the connection is firmer. The adjacent retaining wall units are connected by adopting a tenon and groove structure, and after the retaining wall units are in place, concrete or mortar and the like are used for pouring seams, so that the concrete retaining walls are connected into a whole, and the retaining wall is more stable integrally.

Drawings

Fig. 1 is the overall structure assembly drawing of the utility model.

Fig. 2 is a schematic view of the structure of the wall back plate of the present invention.

Fig. 3 is a schematic view of the structure of the wall bottom plate of the present invention.

Fig. 4 is a schematic view of the connection of a plurality of assembled retaining wall units according to the present invention.

Detailed Description

Referring to fig. 1, the present invention provides a technical solution: the utility model provides a barricade unit that socket formula precast concrete was assembled, includes wall bottom plate 1 and wall backplate 2, pre-buried a plurality of first reinforcing bars 6 that have the exposure of perpendicular to wall bottom plate 1 on the wall bottom plate 1, pre-buried a plurality of second reinforcing bars 7 that have the exposure of vertical setting on the wall backplate 2, the part upper surface of wall bottom plate 1 is provided with inside sunken cast-in-place area 5, it has preformed hole 4 to open in the cast-in-

place area

5, 2 bottoms of wall backplate are provided with boss 3, and boss 3 on the wall backplate 2 inserts in the preformed hole 4 of wall bottom plate 1, and first reinforcing bar 6 and second reinforcing bar 7 welded connection fill in the seam of preformed hole 4 and cast-in-place area 5 and have the mortar to connect wall bottom plate 1 and wall backplate 2 as whole.

The first steel bar 6 and the second steel bar 7 correspond in position.

The exposed combined part of the first reinforcing steel bar 6 and the second reinforcing steel bar 7 is positioned in the cast-in-place strip 5.

The utility model provides a barricade is assembled to socket formula precast concrete, includes multiunit barricade unit, adopts the structural connection of tenon and recess between the adjacent barricade unit.

During installation: firstly hoisting the in-place wall bottom plate 1 by using a crane, hoisting the back plate 2, and moving the back plate 2 to enable the convex joint 3 to penetrate through the preformed hole 4 and be temporarily fixed in the preformed hole 4. The first reinforcing bar 6 and the second reinforcing bar 7 are welded. And (3) pouring mortar into the gap between the convex section 3 and the reserved hole 4, and pouring concrete into the cast-in-place belt 5 to fixedly connect the wall bottom plate 1 and the wall back plate 2. Then, the second wall bottom plate 1 is hoisted in place, the adjacent wall bottom plates 1 are connected through the structures of the tenon and the groove, concrete is poured into the joint gap of the two wall bottom plates 1, then the second wall back plate 2 is hoisted, the adjacent wall back plates 2 are connected through the structures of the tenon and the groove, the concrete is poured into the joint gap of the two wall back plates 2, and the concrete retaining wall units are connected into a whole through sequential installation steps until the installation requirements are met.

Claims

1. The utility model provides a barricade unit that socket formula precast concrete was assembled, includes wall bottom plate (1) and wall backplate (2), its characterized in that: the wall bottom plate is characterized in that a plurality of exposed first reinforcing steel bars (6) perpendicular to the wall bottom plate (1) are pre-embedded in the wall bottom plate (1), a plurality of exposed second reinforcing steel bars (7) longitudinally arranged are pre-embedded in the wall back plate (2), an inward concave cast-in-place strip (5) is arranged on the upper surface of part of the wall bottom plate (1), a reserved hole (4) is formed in the cast-in-place strip (5), a convex joint (3) is arranged at the bottom of the wall back plate (2), the convex joint (3) in the wall back plate (2) is inserted into the reserved hole (4) in the wall bottom plate (1), the first reinforcing steel bars (6) are welded with the second reinforcing steel bars (7) and connected, mortar is poured into a gap of the reserved hole (4) and the cast-in-place strip (5), and therefore the wall bottom plate (1) and the wall back plate (.

2. The socket precast concrete built retaining wall unit according to claim 1, wherein: the first steel bar (6) and the second steel bar (7) correspond in position.

3. The socket precast concrete built retaining wall unit according to claim 1, wherein: the position of the exposed combined part of the first reinforcing steel bar (6) and the second reinforcing steel bar (7) is positioned in the cast-in-place strip (5).

4. A socket-type precast concrete assembled retaining wall, comprising a plurality of groups of retaining wall units as claimed in any one of claims 1 to 3, wherein adjacent retaining wall units are connected by a tenon and groove structure.