CN218757587U - Prefabricated assembled reinforced concrete retaining wall - Google Patents
Prefabricated assembled reinforced concrete retaining wall Download PDFInfo
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- CN218757587U CN218757587U CN202222628316.8U CN202222628316U CN218757587U CN 218757587 U CN218757587 U CN 218757587U CN 202222628316 U CN202222628316 U CN 202222628316U CN 218757587 U CN218757587 U CN 218757587U
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Abstract
The utility model discloses a prefabricated assembled reinforced concrete retaining wall and a construction method thereof, wherein the retaining wall comprises a prefabricated vertical wall plate, a prefabricated bottom plate and a concrete connecting wall, and the vertical wall plate and the bottom plate are connected into a whole through the cast-in-place concrete connecting wall; the vertical wall plates are of variable cross-section type, the wall backs form slopes, and all the sections of the vertical wall plates are longitudinally connected through seam raised lines and seam grooves in a mortise-tenon manner; the bottom of the back of the vertical wallboard is prefabricated into an L-shaped rabbet, and a vertical wallboard stirrup, a vertical wallboard tension steel bar and a vertical wallboard shear resistant steel bar are extended out of the rabbet; the upper part of the retaining wall bottom plate is provided with a boss, the lower part of the retaining wall bottom plate is provided with a tenon, and a bottom plate shear resistant rib and a connecting wall tensile rib are embedded in the retaining wall bottom plate; in the concrete connecting wall, the bottom plate shear resistant ribs are in lap joint with the vertical wall plate shear resistant ribs, the connecting wall tensile ribs are in lap joint with the vertical wall plate stirrups, and the concrete connecting wall is formed by in-situ pouring. The scheme has the advantages of simple structure, high on-site assembling efficiency and outstanding cost performance, and has wide application space and popularization and application values in traffic engineering construction.
Description
Technical Field
The utility model belongs to the technical field of railway, highway, municipal works slope are handled, especially relate to a prefabricated pin-connected panel reinforced concrete retaining wall reaches.
Background
A large amount of slope retaining wall projects exist in railway, highway and municipal engineering construction in China, and the project quantity is huge. At the present stage, retaining walls of railways, highways and municipal works are mainly constructed by concrete pouring, and can be completed by a plurality of procedures such as template erection, concrete pouring, concrete vibration, concrete curing, template dismantling and the like, and the method has the disadvantages of large template support and turnover quantity, low construction efficiency, long construction period and difficult quality control. The prefabrication and assembly technology is an important development direction of building engineering industrialization, and a capital department issues a ' thirteen-five ' assembly type building action scheme ' which points out that the development of the assembly type building is comprehensively promoted, the prefabrication and the assembly are main development directions of the construction, and the time of about 10 years is strived to ensure that the assembly type building accounts for 30 percent of the newly-built building. As a new green and environment-friendly process, the process has the advantages of quick construction, reliable quality, economy, environmental protection and the like, and is more and more favored by engineering technicians in railway, highway and municipal industries.
The research and application of the retaining wall prefabrication and assembly technology are started earlier, generally, the retaining wall is divided into a wall panel and a wall bottom plate, and the wall panel and the wall bottom plate are connected and assembled through the prefabricated wall panel and the prefabricated or cast-in-place wall bottom plate. The core of the prefabricated assembled retaining wall is to determine a proper connection mode of the prefabricated wall panel and the prefabricated wall base plate, so that the strength of the connection part meets the engineering requirement and the prefabricated assembled retaining wall has higher reliability. At present, the connected mode of prefabricated shingle nail and prefabricated wall bottom plate has: the method is characterized in that a plurality of types such as reserved steel bar welding, embedded steel plate welding, bolt connection, bolt angle steel connection and the like are adopted, but the connection types still have certain limitations in the aspects of connection rigidity, bearing capacity, construction difficulty, quality control and the like, and further optimization and improvement are needed.
Therefore, it is necessary to provide a novel prefabricated assembled reinforced concrete retaining wall aiming at the defects of the existing prefabricated assembled reinforced concrete retaining wall, and the purposes of simple structure, high construction efficiency and reliable installation quality of the prefabricated assembled retaining wall are achieved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a reinforced concrete retaining wall is assembled in simple structure, construction are swift, the quality is reliable, application prospect is big, the outstanding prefabrication of price/performance ratio.
The utility model also aims at providing a construction method of above-mentioned prefabricated reinforced concrete retaining wall of assembling.
Therefore, the utility model adopts the following technical scheme:
a prefabricated assembled reinforced concrete retaining wall comprises a plurality of sections of prefabricated vertical wall plates with a reinforced concrete structure, a plurality of sections of prefabricated bottom plates with a reinforced concrete structure and a cast-in-place concrete connecting wall, wherein the plurality of sections of vertical wall plates and the plurality of sections of prefabricated bottom plates are connected into a whole through the concrete connecting wall, the top surface of each bottom plate extends upwards to form an upper boss, the bottom surface of each bottom plate extends downwards to form a lower tenon, bottom plate joint grooves and tongues are arranged on two sides of each bottom plate, and two adjacent sections of bottom plates are overlapped through the joint grooves and tongues; the base plate is embedded with a base plate shear resistant rib and a connecting wall tensile rib which extend upwards; the bottom of the vertical wall plate is arranged on the bottom plate, the front surface of the vertical wall plate is arranged in a manner of clinging to the upper boss, seam grooves and seam convex strips are respectively formed on two sides of the vertical wall plate, and two adjacent sections of vertical wall plates are connected in a mortise-tenon manner through the seam convex strips and the seam grooves; the vertical wall plate is of a variable cross section type, and the back surface of the vertical wall plate forms a slope; a plurality of compression steel bars are uniformly and vertically embedded in one side, close to the front, of the vertical wall plate, a plurality of tension steel bars are uniformly and vertically embedded in one side, close to the back, of the vertical wall plate in an inclined mode, and each compression steel bar and the corresponding tension steel bar are fixed through a plurality of stirrups from top to bottom respectively; forming an inward concave L-shaped tongue-and-groove at the lower part of the back surface of the vertical wallboard; the tensioned steel bars extend out of the L-shaped rabbet, and the stirrups positioned at the bottom extend out of the L-shaped rabbet; and the lower part of the vertical wall plate is also embedded with a vertical wall plate shear resistant rib which extends to the L-shaped rabbet. The section of the concrete connecting wall is a right trapezoid, the section of the concrete connecting wall is arranged on the bottom plate and is as high as the L-shaped rabbet, one side of a right-angle edge of the concrete connecting wall extends into the L-shaped rabbet, and the other side of the right-angle edge of the concrete connecting wall is exposed out of the L-shaped rabbet; in the concrete connecting wall, the extension part of the shear resistant rib of the bottom plate is in lap joint with the shear resistant rib of the vertical wall plate, and the extension part of the tensile resistant rib of the connecting wall is in lap joint with the stirrup; and a cement mortar waterproof sealing layer is poured between the joints of the vertical wall plate and the upper boss.
Preferably, a riser hanging ring is further mounted on the front and rear surfaces of the riser. And a plurality of bottom plate hanging rings are also arranged on the top surface of the bottom plate.
Preferably, the upper boss and the lower tenon are provided along the entire width of the base plate.
Preferably, the upper boss (2 b) has a width of 0.5m and a height of 0.5m: the width of the lower tenon (2 a) is 0.5 to 0.8m, and the height thereof is 0.2 to 0.4m. The slope of the back surface of the vertical wall plate (1) is 1. The depth of the L-shaped rabbet (12) which is sunken into the vertical wallboard is 0.5-0.8 m, and the height is 1.0-1.5 m.
A construction method of the prefabricated assembled reinforced concrete retaining wall comprises the following steps:
s1, prefabricating each section of vertical wall plate and bottom plate according to design requirements and a drawing, and maintaining to a design age;
s2, leveling a site, lofting the site, and transporting each section of vertical wall plate and bottom plate to a construction site;
s3, hoisting the bottom plates and the vertical wall plates in sequence by adopting hoisting equipment on a construction site, wherein the adjacent bottom plates are lapped through seam tongues and grooves, and the adjacent vertical wall plates are connected through the seam convex strips and the seam grooves in a mortise-tenon manner;
s4, overlapping a bottom plate shear resistant rib on the bottom plate with the vertical wall plate shear resistant rib, and overlapping a connecting wall tensile rib with a stirrup extending out of the vertical wall plate;
s5, pouring concrete in situ at the L-shaped rabbet of the vertical wall plate to form a closed concrete connecting wall, and maintaining a cast-in-situ component until the design strength is reached;
and S5, pouring a cement mortar waterproof sealing layer in situ at the joint of the vertical wall plate and the boss at the upper part of the bottom plate, and maintaining to the design age.
Compared with the prior art, the utility model has the advantages of it is following and beneficial effect:
1. the utility model discloses a prefabricated component mode of mill compares construction quality reliably, installation quality is controllable, the efficiency of construction is high, the cost of labor is low with cast-in-place mode.
2. The utility model provides the high reliability of prefabricated barricade founding plate and prefabricated barricade bottom plate, connection simple process has strengthened the shear resistance and the wall back bending resistance of retaining wall.
3. The utility model discloses shortened on-the-spot construction period and energy-concerving and environment-protective greatly, had wide application space and popularization and application value in traffic engineering construction such as china's railway, highway, town road.
Drawings
Fig. 1 is a schematic three-dimensional structure diagram of the prefabricated assembled reinforced concrete retaining wall of the present invention;
FIG. 2 is a schematic cross-sectional structure view of the prefabricated assembled reinforced concrete retaining wall of the present invention;
FIG. 3 is a schematic view of the prefabricated assembled reinforced concrete retaining wall of the present invention;
FIG. 4 is a schematic diagram of reinforcement of a single prefabricated vertical arm plate of the present invention;
FIG. 5 is a schematic diagram of reinforcement of a single prefabricated bottom plate of the present invention;
fig. 6 is a reinforcement schematic diagram of the cast-in-place concrete connecting wall of the present invention.
In the figure:
1. vertical wall plate 1a, seam groove 1b, seam convex strip
2. A bottom plate 2a, a lower tenon 2b and an upper boss
2c, a bottom plate joint rabbet 3, a concrete connecting wall 4 and a compression reinforcing steel bar
5. Tension steel bar 6, stirrup 7 and vertical wall plate shear resistant bar
8. Bottom plate shear resistant rib 9, connecting wall tensile rib 10 and vertical wall plate hanging ring
11. Bottom plate hanging ring 12, L-shaped tongue-and-groove
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1-6, the utility model discloses a prefabricated pin-connected panel reinforced concrete retaining wall, including prefabricated founding wallboard 1 of multisection, prefabricated bottom plate 2 of multisection and cast-in-place concrete connecting wall 3, prefabricated founding wallboard 1 and prefabricated bottom plate 2 and connecting into a lesson through cast-in-place concrete connecting wall 3 and keep off soil the unit.
Referring to fig. 1 and 2, the base plate 2 is a prefabricated reinforced concrete member, an upper boss 2b extends upwards from the top surface of the base plate 2, a lower tenon 2a for anti-sliding extends downwards from the bottom surface of the base plate 2, and the lengths of the upper boss 2b and the lower tenon 2a are equal to the width of the base plate 2. Two sides of the bottom plate 2 are provided with bottom plate joint tongue-and-groove 2c, and two adjacent bottom plates are lapped through the joint tongue-and-groove 2 c. In addition, as shown in fig. 5, a floor shear bar 8 and a connecting wall tensile bar 9 extending upward are provided on the floor panel 2. For the convenience of hoisting, a plurality of bottom plate hoisting rings 11 are arranged on the top surface of the bottom plate 2.
The vertical wall plate 1 is a prefabricated reinforced concrete member, the bottom of the vertical wall plate is arranged on the bottom plate 2, and the front surface of the vertical wall plate is tightly attached to the upper boss 2 b. The two sides of each vertical wallboard 1 are respectively provided with a joint groove 1a and a joint raised strip 1b, and adjacent vertical wallboards 1 are connected through joint raised strips and joint grooves in a mortise-tenon manner. The vertical wall plate 1 is of a variable cross-section type, and the back surface of the vertical wall plate is sloped. A plurality of stressed steel bars 4 are uniformly and vertically arranged on one side, close to the front, of the vertical wallboard 1, a plurality of tensioned steel bars 5 are uniformly and vertically arranged on one side, close to the back, of the vertical wallboard (the inclination of the stressed steel bars is consistent with that of the back of the vertical wallboard), and each stressed steel bar 4 and the corresponding tensioned steel bar 5 are fixed through a plurality of stirrups 6 from top to bottom; the lower part of the back of the vertical wallboard 1 is prefabricated into an L-shaped rabbet 12, and a stirrup 6, a tensioned steel bar 5 and a vertical wallboard shear-resisting rib 7 which extend outwards are reserved at the L-shaped rabbet 12. The upper part of the shear resistant rib 7 of the vertical wallboard extends into the vertical wallboard, and the lower part extends downwards to the L-shaped rabbet 12. In addition, for the convenience of hoisting, a vertical wall plate hoisting ring 10 is also installed on the front surface and the back surface of the vertical wall plate.
The section of the concrete connecting wall 3 is a right trapezoid, and the concrete connecting wall is arranged on the bottom plate 2, one side of the concrete connecting wall extends into the L-shaped rabbet 12, and the other side of the concrete connecting wall is exposed out of the L-shaped rabbet 12. The concrete connecting wall 3 adopts a cast-in-place mode. The bottom plate shear-resistant ribs 8 are in lap joint with the vertical wall plate shear-resistant ribs 7 so as to enhance the shear strength of the construction joints of the vertical wall plate 1, the bottom plate 2 and the concrete connecting wall 3; the tensile ribs 9 of the connecting wall are in lap joint with the stirrups 6 extending out of the vertical wall plate so as to enhance the tensile strength of the concrete connecting wall 3; and cement mortar is poured between the joints of the vertical wall plate 1 and the upper boss 2b of the bottom plate to be used as a waterproof sealing layer.
Preferably, the slope of the back of the vertical wall plate is 1; the width of the vertical wall plate at the L-shaped tongue-and-groove 12 is 0.5-0.8 m, and the height is 1.0-1.5 m; the width of the upper boss 2b is 0.5m, and the height thereof is 0.5m; the width of the lower tenon 2a is 0.5-0.8 m, and the height thereof is 0.2-0.4 m.
As shown in fig. 1-6, the utility model discloses prefabricated pin-connected panel reinforced concrete retaining wall's design preparation and work progress as follows:
firstly, the production of each prefabricated component of the retaining wall needs to be implemented in a special prefabricated component factory, the prefabricated components are manufactured by adopting an industrialized construction technology, the template structures of the vertical wall plate 1 and the bottom plate 2 of the retaining wall are respectively designed and completed, the template structures can adopt steel dies coated with a release agent, and after a reinforcing mesh is erected and a hoisting ring system is arranged, concrete is adopted for one-time pouring forming and curing to the design age for standby.
And then, carrying out construction site leveling, retaining wall foundation measurement setting-out and retaining wall foundation base groove excavation, and finishing the replacement and filling construction and leveling of the retaining wall foundation.
Then, measuring and setting out the mounting positions of the bottom plates of the retaining wall, hoisting each section of the bottom plate 2 by using a bottom plate hoisting ring 11, and overlapping and mounting two adjacent sections of the bottom plates through seam rabbet 2 c; hoisting each section of vertical wallboard 1 by using the vertical wallboard hoisting ring 10, connecting adjacent vertical wallboards 1 through raised strips of seam grooves 1a and seams 1b of the vertical wallboards in a mortise-tenon manner, and accurately aligning the vertical wallboards with corresponding bottom plates 2;
then, overlapping the bottom plate shear-resistant rib 8 with the vertical wall plate shear-resistant rib 7, and overlapping the connecting wall tensile rib 9 with the vertical wall plate stirrup 6; and then erecting a formwork of the concrete connecting wall 3, adopting on-site concrete to pour and form at one time, dismantling the formwork after curing to the design age, and filling soil behind the wall. And finally, pouring cement mortar in situ at the joint between the vertical wall plate 1 and the upper boss 2b of the bottom plate. And finishing the construction of the whole retaining wall.
To sum up, compare in current traditional retaining wall, the utility model discloses a prefabricated pin-connected panel reinforced concrete retaining wall prefabricated block simple structure, prefabricated block mode of assembling is reliable, has effectively improved site operation quality and efficiency of construction, and application prospect is wide, the price/performance ratio is outstanding, accords with the actual demand of all kinds of traffic engineering construction of china, has higher innovation level and engineering popularization and application and worth.
Claims (8)
1. The utility model provides a prefabricated pin-connected panel reinforced concrete retaining wall which characterized in that: comprises a plurality of sections of prefabricated vertical wall plates (1) with a reinforced concrete structure, a plurality of sections of prefabricated bottom plates (2) with a reinforced concrete structure and a cast-in-place concrete connecting wall (3), wherein the plurality of sections of vertical wall plates (1) and the bottom plates (2) are connected into a whole through the concrete connecting wall (3),
the top surface of the bottom plate (2) extends upwards to form an upper boss (2 b), the bottom surface of the bottom plate (2) extends downwards to form a lower tenon (2 a), bottom plate joint tongues (2 c) are arranged on two sides of the bottom plate (2), and two adjacent sections of bottom plates are overlapped through the joint tongues (2 c); the base plate (2) is embedded with an upward extending base plate shear resistant rib (8) and a connecting wall tensile rib (9);
the bottom of the vertical wall plate (1) is arranged on the bottom plate (2), the front surface of the vertical wall plate (1) is arranged to be tightly attached to the upper boss (2 b), seam grooves (1 a) and seam convex strips (1 b) are formed on two sides of the vertical wall plate (1), and two adjacent sections of vertical wall plates are connected through the seam convex strips and the seam grooves in a mortise-tenon manner; the vertical wall plate (1) adopts a variable cross section type, and the back surface of the vertical wall plate forms a slope; a plurality of compression steel bars (4) are uniformly and vertically embedded in one side, close to the front, of the vertical wall plate (1), a plurality of tension steel bars (5) are uniformly and vertically embedded in one side, close to the back, of the vertical wall plate in an inclined mode, and each compression steel bar (4) and the corresponding tension steel bar (5) are fixed through a plurality of stirrups (6) from top to bottom respectively; an inward concave L-shaped rabbet (12) is formed at the lower part of the back surface of the vertical wallboard (1); the tensioned steel bars (5) extend out of the L-shaped rabbet (12), and the stirrups (6) positioned at the bottom extend out of the L-shaped rabbet (12); the lower part of the vertical wallboard (1) is embedded with a vertical wallboard shear resistant rib (7) extending to the L-shaped rabbet (12);
the section of the concrete connecting wall (3) is in a right trapezoid shape, the concrete connecting wall is arranged on the bottom plate (2) and is as high as the L-shaped rabbet in height, one side of a right-angle side of the concrete connecting wall (3) extends into the L-shaped rabbet (12), and the other side of the right-angle side of the concrete connecting wall is exposed out of the L-shaped rabbet (12); in the concrete connecting wall (3), the extension part of the floor shear bar (8) is overlapped with the vertical wall plate shear bar (7), and the extension part of the connecting wall tensile bar (9) is overlapped with the hoop bar (6);
and a cement mortar waterproof sealing layer is poured between the joints of the vertical wall plate (1) and the upper boss (2 b).
2. The prefabricated assembled reinforced concrete retaining wall according to claim 1, wherein: and vertical wall plate hanging rings (10) are further mounted on the front surface and the back surface of the vertical wall plate (1).
3. The prefabricated assembled reinforced concrete retaining wall according to claim 1, wherein: the top surface of the bottom plate (2) is also provided with a plurality of bottom plate hanging rings (11).
4. The prefabricated assembled reinforced concrete retaining wall according to claim 1, wherein: the upper boss (2 b) and the lower tenon (2 a) are arranged along the whole width of the bottom plate (2).
5. The prefabricated assembled reinforced concrete retaining wall according to claim 1, wherein: the width of the upper boss (2 b) is 0.5m, and the height of the upper boss is 0.5m.
6. The prefabricated assembly type reinforced concrete retaining wall according to claim 1, wherein: the width of the lower tenon (2 a) is 0.5-0.8 m, and the height thereof is 0.2-0.4 m.
7. The prefabricated assembled reinforced concrete retaining wall according to claim 1, wherein: the slope of the back surface of the vertical wall plate (1) is 1.
8. The prefabricated assembled reinforced concrete retaining wall according to claim 1, wherein: the depth of the recess of the L-shaped rabbet (12) towards the vertical wallboard is 0.5-0.8 m, and the height is 1.0-1.5 m.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222628316.8U CN218757587U (en) | 2022-10-08 | 2022-10-08 | Prefabricated assembled reinforced concrete retaining wall |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222628316.8U CN218757587U (en) | 2022-10-08 | 2022-10-08 | Prefabricated assembled reinforced concrete retaining wall |
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| CN218757587U true CN218757587U (en) | 2023-03-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024074079A1 (en) * | 2022-10-08 | 2024-04-11 | 中国铁路设计集团有限公司 | Prefabricated assembled reinforced concrete retaining wall and construction method therefor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024074079A1 (en) * | 2022-10-08 | 2024-04-11 | 中国铁路设计集团有限公司 | Prefabricated assembled reinforced concrete retaining wall and construction method therefor |
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