CN213448499U

CN213448499U - Dado prefabricated construction

Info

Publication number: CN213448499U
Application number: CN202021728415.8U
Authority: CN
Inventors: 许顺良
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-06-15
Anticipated expiration: 2030-08-18

Abstract

The utility model provides a retaining wall prefabricated structure, which comprises at least two precast piles, wherein a steel reinforcement cage is arranged in each precast pile, and the end parts of the precast piles are fixedly provided with sleeves connected with the steel reinforcement cage; the retaining wall prefabricated construction still includes connecting plate and connecting piece, and the connecting plate can be through connecting piece fixed connection respectively in the sleeve of two precast pile tip for two precast piles mutually paste and fix. The utility model provides a dado prefabricated construction can produce the precast pile who has the telescopic in the mill, squeezes the precast pile into foundation ditch or river course at the job site, then splices two precast piles fast through connecting plate and connecting piece, can connect many precast piles fast in order to form foundation ditch support or river course enclosure for many precast piles are connected as a whole, and the atress ability improves by a wide margin, and guard action and flood resistance dynamics increase by a wide margin thereupon. And moreover, the mode of precast piles is adopted, so that the production cost and the production quality can be controlled, and the foundation pit support or the river channel enclosure has higher cost performance.

Description

Dado prefabricated construction

Technical Field

The utility model relates to a civil engineering field especially relates to a dado prefabricated construction.

Background

The foundation pit support or the river channel enclosure usually adopts a cast-in-place method or a precast pile splicing method, the cast-in-place method has long construction period, low work efficiency, high engineering cost and complex construction procedures, and the structure of the grouted blockstone and the dry blockstone has poor durability, so that the phenomena of bonding, cracking and collapse of the blockstone and the concrete can occur generally 2 to 3 years under the action of expansion and contraction after the temperature changes, and the structure quality is extremely unstable; and when flood control disaster relief, people can not wait for cast-in-place usually for a long time, and life and property safety of people is influenced.

The precast pile splicing method is characterized in that a plurality of precast piles are respectively driven into a soil layer to form a foundation pit support or a river channel enclosure, however, after the precast piles are driven into the soil layer, each precast pile is independently stressed, and if one precast pile is inclined, the whole foundation pit support or the river channel enclosure is lowered in a cliff breaking mode. Therefore, after each precast pile is driven into a foundation pit or a river, the precast piles need to be connected into a whole. The existing connecting structure for two precast piles is complex, the manufacturing cost is high, the site operation is inconvenient, and the working hours are prolonged.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a prefabricated structure for a retaining wall.

The utility model provides a retaining wall prefabricated structure, which comprises at least two precast piles and is characterized in that a plurality of axial rib bodies are arranged in each precast pile, the axial rib bodies are arranged along the axial direction of the precast pile, and the end parts of the precast piles are fixedly provided with sleeves connected with the axial rib bodies; the retaining wall prefabricated construction still includes connecting plate and connecting piece, the connecting plate can pass through connecting piece fixed connection respectively in two the sleeve of precast pile tip for two precast piles mutually paste and fix.

The utility model discloses an in one embodiment, every the both sides that the precast pile deviates from relatively have seted up and have filled half groove, fill half groove and run through two terminal surfaces of precast pile, one of them the filled half groove of precast pile can with another the filled half groove of precast pile splices each other and forms and fills the groove.

In an embodiment of the present invention, the filling groove is filled with a filler.

In an embodiment of the present invention, the filler is cast-in-place mortar or cast-in-place concrete.

In an embodiment of the present invention, a cross-sectional shape of the circumferential wall of the filling half-groove in the radial direction of the precast pile is semicircular, and diameters of the filling half-groove formed on both sides of the precast pile facing away from each other are the same.

In an embodiment of the present invention, the retaining wall prefabricated structure further includes a plurality of reinforcement cages, the plurality of sleeves includes a plurality of radial reinforcement bodies and a plurality of axial reinforcement bodies, the plurality of axial reinforcement bodies form a frame of the reinforcement cage, the radial reinforcement bodies spirally surround the frame of the reinforcement cage, and the radial reinforcement bodies are fixedly connected to the axial reinforcement bodies; each sleeve is sleeved with one axial rib body.

The utility model discloses an embodiment, seted up four at least connecting holes on the connecting plate, the connecting piece wear to establish the connecting hole and fixed connection in the sleeve, every the precast pile corresponds to two at least connecting holes.

In an embodiment of the invention, the sleeve is provided with an internal thread, the connecting piece is provided with an external thread, the connecting piece is in threaded connection and fixed with the sleeve.

In an embodiment of the present invention, the precast pile is a rectangular pile having a tubular pile or a radial cross-section.

In an embodiment of the present invention, the precast pile is a solid pile, a hollow pile or a partially hollow pile.

The utility model provides a dado prefabricated construction can produce the precast pile who has the telescopic in the mill, squeezes the precast pile into foundation ditch or river course at the job site, then splices two precast piles fast through connecting plate and connecting piece, can connect many precast piles fast in order to form foundation ditch support or river course enclosure for many precast piles are connected as a whole, and the atress ability improves by a wide margin, and guard action and flood resistance dynamics increase by a wide margin thereupon. And moreover, the mode of precast piles is adopted, so that the production cost and the production quality can be controlled, and the foundation pit support or the river channel enclosure has higher cost performance.

Drawings

FIG. 1 is a schematic structural view of a prefabricated structure of a middle retaining wall according to the present invention;

fig. 2 is a schematic structural view of the precast pile in fig. 1;

FIG. 3 is a schematic structural view of the connecting plate and a part of the precast pile shown in FIG. 1;

fig. 4 is an enlarged view of a portion a shown in fig. 3.

10. Prefabricating a pile; 11. filling the half-groove; 12. filling the groove; 20. a reinforcement cage; 21. a radial rib body; 22. an axial rib body; 221. heading; 30. a sleeve; 31. a constriction; 40. a connecting plate; 41. connecting holes; 50. a connecting member.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a prefabricated structure of a middle retaining wall according to the present invention; fig. 2 is a schematic structural view of the precast pile in fig. 1; fig. 3 is a schematic structural view of the connection plate 40 and a part of the precast pile 10 shown in fig. 1.

The utility model provides a dado prefabricated construction for form the continuity enclosure that has the guard action. In this embodiment, the retaining wall composite pile is used to prevent river water from flowing out of the river. It can be understood that in other embodiments, the combined pile for the retaining wall can also be applied to use occasions requiring other water-blocking enclosures, and can also be applied to use occasions such as foundation pit supporting and the like so as to ensure the stability of the foundation pit and the safety of operation in the pit.

The retaining wall precast structure includes a plurality of precast piles 10, each precast pile 10 is driven into the river channel respectively and is arranged side by side with other precast piles 10, and the plurality of precast piles 10 are attached as much as possible to prevent outflow of river water. In order to connect a plurality of precast piles 10 into a whole, the retaining wall precast structure further includes a connecting plate 40 and a connecting member 50, the connecting plate 40 is installed on the top of two precast piles 10, and the connecting member 50 fixes the connecting plate 40 and the precast piles 10. Through the connecting action and the fixing action of the connecting plate 40 and the connecting piece 50, a plurality of precast piles 10 can be firmly connected into a whole, and the water blocking effect of the river channel enclosure is improved.

In order to ensure the connection strength of the two precast piles 10, the connection plate 40 is preferably a stainless steel plate. It is understood that other metal plates may be used for the connecting plate 40 in other embodiments.

However, the existing connecting structure for two precast piles is complex, the manufacturing cost is high, the site operation is inconvenient, the connecting structure needs complex operation to connect a plurality of precast piles into a whole, and the working hours are prolonged.

Based on this, be provided with steel reinforcement cage 20 in the precast pile 10 in this application, and the tip of precast pile 10 sets firmly the sleeve 30 of connecting in steel reinforcement cage 20, when the construction, only need place the top of two precast piles 10 with connecting plate 40, then with connecting piece 50 and sleeve 30 fixed connection, can be with two precast piles 10 fixed connection.

The utility model discloses in, sleeve 30 only sets up an tip at precast pile 10, and when using precast pile 10, the one end that is provided with sleeve 30 becomes the top of precast pile 10 up, and the connecting plate 40 of being convenient for is fixed. It will be appreciated that in other embodiments, sleeves 30 may be provided at both ends of the precast pile 10.

In one embodiment, the reinforcement cage 20 includes a radial reinforcement body 21 and a plurality of axial reinforcement bodies 22, the axial reinforcement bodies 22 are disposed along an axial direction of the precast pile 10, the plurality of axial reinforcement bodies 22 form a framework of the reinforcement cage 20, the radial reinforcement body 21 spirally surrounds the framework of the reinforcement cage 20, and the radial reinforcement body 21 is fixedly connected with the axial reinforcement bodies 22.

It should be noted that, regardless of the strength of the precast pile 10, only the axial ribs 22 may be provided for connecting the sleeve 30, and the radial ribs 21 may be omitted.

Referring to fig. 4, fig. 4 is an enlarged view of a portion a shown in fig. 3.

The utility model discloses well precast pile 10's manufacture process does: building a plurality of axial rib bodies 22 into a framework of the reinforcement cage 20, and fixing the relative positions of the plurality of axial rib bodies 22 through processing equipment; and winding the radial rib body 21 outside the framework of the reinforcement cage 20 formed by the axial rib bodies 22, and spot-welding the radial rib body 21 on the axial rib bodies 22 to form the reinforcement cage 20. Wherein, the sleeve 30 is provided with a shrinkage port 31, after the sleeve 30 is sleeved on the axial rib 22, an upset 221 is hot-processed at the end part of the axial rib 22, and the size of the upset 221 is larger than the inner diameter size of the shrinkage port 31, so that the sleeve 30 is prevented from being separated from the axial rib 22. And then, placing the reinforcement cage 20 with the sleeve 30 into a mold, filling concrete, and performing steam curing, air drying and other processes to form the precast pile 10. So make, the shaping mode of precast pile 10 is simple to at the pre-buried sleeve 30 of the tip of precast pile 10, during site operation, connecting piece 50 only need insert and fix in sleeve 30 can, saved the long time of site operation greatly.

In this embodiment, the sleeves 30 are located at the ends of the precast pile 10 relatively close to the edges, which facilitates connection with other precast piles 10 and reduces the area of the connecting plate 40. It will be appreciated that in other embodiments, in order to ensure the strength of the connection between the precast piles 10, sleeves 30 may be provided at the ends of each axial tendon 22, and the connecting plate 40 may be fixedly connected to the precast pile 10 by more connecting members 50.

In one embodiment, there are at least two connection holes 41, and each of the two precast piles 10 corresponds to one connection hole 41.

Preferably, the connecting plate 40 has at least four connecting holes 41, the connecting member 50 is inserted through the connecting holes 41 and fixedly connected to the sleeve 30, and each precast pile 10 corresponds to at least two connecting holes 41. It can be understood that the number of the connecting holes 41 corresponding to the two precast piles 10 may be the same or different.

In order to improve the installation efficiency of the connecting plate 40 during site construction, the aperture of the connecting hole 41 is larger than the inner diameter of the sleeve 30, and thus, the installation flexibility of the connecting piece 50 can be greatly increased, and the construction time is saved.

It is understood that the connecting hole 41 may be a waist-shaped hole, a rectangular hole or an elliptical hole, or may be a hole of other shapes; if the inner diameter of the coupling hole 41 is larger than the maximum outer diameter of the coupling member 50, a washer may be added between the coupling member 50 and the coupling hole 41 to fix the coupling member 50.

In the present embodiment, the sleeve 30 is provided with an internal thread, the coupling 50 is provided with an external thread, and the coupling 50 and the sleeve 30 are screwed and fixed. So set up, connecting piece 50 can connect in sleeve 30 fast, can further save the time of being under construction. It is understood that in other embodiments, the connecting member 50 and the sleeve 30 may be fixedly connected by welding, gluing, etc., as long as two precast piles 10 can be connected into a whole, which is not illustrated herein.

In this embodiment, the precast pile 10 is a tubular pile, and the outer peripheral wall of the radial cross section is a rectangular pile or a special-shaped pile; the precast pile 10 may be a solid pile, a hollow pile or a partially hollow pile.

In one embodiment, two opposite sides of each precast pile 10 are opened with filling half-grooves 11, the filling half-grooves 11 penetrate through two end faces of the precast pile 10, and the filling half-groove 11 of one precast pile 10 can be mutually spliced with the filling half-groove 11 of the other precast pile 10 to form a filling groove 12. With this arrangement, not only can the weight of the precast pile 10 be reduced, but also the driving position of each precast pile 10 can be determined more conveniently.

Preferably, the precast pile 10 is a pile with a square outer peripheral wall of a radial cross section, and the filling half-grooves 11 are formed in all four side surfaces of the precast pile 10, so that the number of times of rotation of the precast pile 10 can be reduced in the construction process, and the construction time can be further saved.

In order to facilitate the processing and avoid the sudden stress change of the partial structure of the precast pile 10, in one embodiment, the cross-sectional shape of the peripheral wall of the filling half-groove 11 in the radial direction of the precast pile 10 is semicircular. With the adoption of the arrangement, the semicircular filling half-groove 11 is convenient to process, and can better prevent the sudden change of stress and prevent the strength reduction of the precast pile 10.

It should be noted that the radial direction in the present invention refers to a direction perpendicular to the axial direction of the precast pile 10, and does not limit the cross-sectional shape of the precast pile 10.

It is understood that in other embodiments, the cross-sectional shape of the peripheral wall of the filling half-groove 11 in the radial direction of the precast pile 10 may be U-shaped, triangular, oval, polygonal or other shapes, which are not listed here.

In order to further prevent water from flowing out between the two precast piles 10, the filling groove 12 is filled with a filler (not shown), preferably, the filler is cast-in-place mortar or cast-in-place concrete. Due to the arrangement, the filler can well fill the gap between the two precast piles 10, water flow is prevented from flowing out of the gap between the two precast piles 10, and the water blocking effect is good; and the utility model provides a dado prefabricated construction has combined cast in situ method and the legitimate advantage of 10 amalgamations of precast pile, has both had fine effect of blocking water, the shaping that can be relatively quick again.

It is understood that, in other embodiments, since the force applied to the filler in the filling groove 12 is not large, the filler may be other water blocking materials such as polymer foam, as long as the water blocking effect is good.

Preferably, the diameters of the filling half-grooves 11 formed on the opposite sides of the precast pile 10 are the same, and the sizes of the filling half-grooves 11 on the two sides are the same, so that the strength of the two sides of the precast pile 10 can be ensured to be approximately the same, and the filler can be prevented from flowing out when concrete mortar is filled subsequently.

In this embodiment, the connection plate 40 is fixed to the top of the precast pile 10 by the connection member 50 and then refilled with filler. It will be appreciated that in other embodiments, the filler may be filled first and then the web 40 may be secured.

The utility model provides a dado prefabricated construction can produce the precast pile 10 that has sleeve 30 in the mill, squeezes precast pile 10 into the river course at the job site, then splices two precast piles 10 fast through connecting plate 40 and connecting piece 50, can connect many precast piles 10 fast in order to form the river course and enclose for many precast piles 10 are connected to be a whole, and the atress ability improves by a wide margin, and the flood resistance dynamics increases thereupon by a wide margin. In addition, the prefabricated pile 10 is adopted, so that the production cost and the production quality can be controlled, and the river channel enclosure has higher cost performance.

The features of the above embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above embodiments are not described, but should be construed as being within the scope of the present specification as long as there is no contradiction between the combinations of the features.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be taken as limiting the present invention, and that suitable modifications and variations of the above embodiments are within the scope of the invention as claimed.

Claims

1. A prefabricated wall protection structure comprises at least two prefabricated piles (10), and is characterized in that a plurality of axial rib bodies (22) are arranged in each prefabricated pile (10), the axial rib bodies (22) are arranged along the axial direction of the prefabricated pile (10), and sleeves (30) connected to the axial rib bodies (22) are fixedly arranged at the end parts of the prefabricated piles (10);

the wall protection prefabricated structure further comprises a connecting plate (40) and a connecting piece (50), wherein the connecting plate (40) can be respectively and fixedly connected with the sleeves (30) at the end parts of the two precast piles (10) through the connecting piece (50), so that the two precast piles (10) are mutually attached and fixed.

2. A retaining wall precast structure according to claim 1, characterized in that the opposite sides of each precast pile (10) are opened with filling half-grooves (11), the filling half-grooves (11) penetrate through the two end faces of the precast pile (10), wherein the filling half-grooves (11) of one precast pile (10) can be spliced with the filling half-grooves (11) of the other precast pile (10) to form filling grooves (12).

3. A retaining wall preform structure according to claim 2, wherein the filling channel (12) is filled with a filler.

4. A retaining wall precast structure according to claim 3 wherein the filler is cast in place mortar or cast in place concrete.

5. A retaining wall preform structure as claimed in claim 2, characterised in that the cross-sectional shape of the peripheral wall of the filling half-channel (11) in the radial direction of the preform pile (10) is semicircular, and the diameters of the filling half-channels (11) formed on the opposite sides of the preform pile (10) facing away are the same.

6. A wall-protecting prefabricated structure according to claim 1, wherein the wall-protecting prefabricated structure further comprises a plurality of reinforcement cages (20), the sleeves (30) are provided in plurality, each reinforcement cage (20) comprises a radial reinforcement body (21) and a plurality of axial reinforcement bodies (22), the axial reinforcement bodies (22) are arranged along the axial direction of the precast pile (10), the plurality of axial reinforcement bodies (22) form a framework of the reinforcement cage (20), the radial reinforcement bodies (21) spirally surround the framework of the reinforcement cage (20), and the radial reinforcement bodies (21) and the axial reinforcement bodies (22) are fixedly connected; each sleeve (30) is sleeved with one axial rib body (22).

7. A prefabricated structure for a retaining wall according to claim 1, characterized in that said connecting plate (40) is provided with at least four connecting holes (41), said connecting member (50) is inserted through said connecting holes (41) and fixedly connected to said sleeve (30), and each of said prefabricated piles (10) corresponds to at least two connecting holes (41).

8. A retaining wall preform construction according to claim 1, characterised in that the sleeve (30) is provided with an internal thread and the connecting member (50) is provided with an external thread, the connecting member (50) being screwed and fixed to the sleeve (30).

9. A retaining wall preform construction according to claim 1, characterised in that the preform pile (10) is a tubular pile or a pile with a radial cross-section with a rectangular peripheral wall.

10. A retaining wall precast structure according to claim 9, characterized in that the precast pile (10) is a solid pile, a hollow pile or a partially hollow pile.