CN213173752U - Retaining wall enclosure structure - Google Patents

Abstract

The utility model provides a retaining wall envelope 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 cages; the retaining wall envelope structure further comprises a support rib body and a capping beam, the capping beam is a cast-in-place beam and is positioned at the tops of the two precast piles, and the support rib body is connected to the sleeve and is positioned inside the capping beam. The utility model provides a dado envelope can produce the precast pile with cover barrel in the mill, squeeze into foundation ditch or river course with the precast pile at the job site, then can piece together two precast piles together fast and fix through cast-in-place capping beam, saved the shaping time of foundation ditch support or river course enclosure; the support rib body is connected with precast pile and capping beam simultaneously, can improve the wholeness between capping beam and the precast pile to the support rib body sets up the atress ability that can improve the capping beam in the capping beam by a wide margin.

Description

Retaining wall enclosure structure

Technical Field

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

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 composite pile is complex in connection, time-consuming and labor-consuming; and the precast pile has lower strength after splicing.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for a retaining wall enclosure.

The utility model provides a retaining wall envelope, which comprises at least two precast piles, wherein 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 envelope still includes the support rib body and capping beam, the capping beam is cast-in-place roof beam, the capping beam is located two the top of precast pile, the support rib body connect in the sleeve just is located inside the capping beam.

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 one embodiment of the present invention, the capping beam is a cast-in-place mortar beam or a cast-in-place concrete beam; and/or 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 sleeve is provided with an internal thread, the support rib is provided with an external thread, and the support rib is connected and fixed with the sleeve through a thread.

In an embodiment of the present invention, the supporting rib has an included angle with an axis direction of the precast pile.

In an embodiment of the present invention, the retaining wall enclosure 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 and the axial reinforcement bodies are fixedly connected to each other; each sleeve is sleeved with one axial rib body.

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 envelope can produce the precast pile with cover barrel in the mill, squeeze into foundation ditch or river course with the precast pile at the job site, then can piece together two precast piles together fast and fix through cast-in-place capping beam, saved the shaping time of foundation ditch support or river course enclosure; the supporting rib bodies are connected with the precast piles and the capping beams simultaneously, the integrity between the capping beams and the precast piles can be improved, and the stress capacity of the capping beams can be greatly improved by arranging the supporting rib bodies in the capping beams; in addition, when the capping beam is cast in place, the gap between two precast piles can be filled, the capping beam is compact in structure, the water resistance of the formed retaining wall structure is good, and the protection effect and the flood fighting strength are greatly increased. 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 view of the splicing state of two precast piles in the utility model;

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

fig. 3 is a schematic structural view of the precast pile, the supporting rib and the capping beam of the present invention;

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 support rib body; 50. and (4) a capping beam.

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 and 3, fig. 1 is a schematic view illustrating a state in which two precast piles 10 are assembled; fig. 2 is a schematic structural diagram of a precast pile 10, a support rib 40 and a capping beam 50 according to the present invention; fig. 3 is an enlarged view of a portion a shown in fig. 2.

The utility model provides a dado envelope 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 traditional river channel enclosure generally adopts a cast-in-place method, the cast-in-place method has long construction period, low work efficiency, high engineering cost and complex construction procedures, and when a flood control disaster relief occurs, the river channel enclosure usually has no time to wait for cast-in-place, so that the life and property safety of people is influenced; and the mortar and dry masonry structure has poor durability, and under the action of thermal expansion and cold contraction after the temperature change, the phenomena of bonding, cracking and collapse of the masonry and the concrete can occur in 2 to 3 years generally, and the structure quality is extremely unstable.

Based on this, it is desirable to provide a dado envelope, including many precast piles 10, every precast pile 10 is driven into the river course respectively and is set up with other precast piles 10 side by side, and many precast piles 10 laminate as far as possible in order to prevent the river outflow. In order to connect a plurality of precast piles 10 into a whole, the retaining wall enclosure structure further comprises a supporting rib body 40 and a capping beam 50, the capping beam 50 is a cast-in-place beam, the capping beam 50 is positioned at the top of the two precast piles 10, the supporting rib body 40 is connected to the sleeve 30 and positioned in the capping beam 50, by the arrangement, the precast pile 10 with the sleeve 30 can be produced in a factory, the precast pile 10 is driven into a river channel in a construction site, and then the two precast piles 10 can be quickly spliced and fixed together by pouring the capping beam 50 in situ, so that the forming time of the river channel enclosure is saved; the supporting rib body 40 is connected with the precast pile 10 and the capping beam 50 at the same time, so that the integrity between the capping beam 50 and the precast pile 10 can be improved, and the stress capacity of the capping beam 50 can be greatly improved by arranging the supporting rib body 40 in the capping beam 50; in addition, when the capping beam 50 is cast in place, the gap between the two precast piles 10 can be filled, the capping beam 50 is compact in structure, the water resistance of the formed retaining wall structure is good, and the flood fighting strength is greatly increased. 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.

In the present embodiment, the support rib 40 is preferably a rebar. It is understood that in other embodiments, other types of steel reinforcement are possible, such as stainless steel rods, hot rolled steel rods, medium strength pre-stressed wires, stress-relief wires, steel strands, and the like.

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, is convenient for supply support muscle body 40 fixed connection. 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.

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 the preparation, the shaping mode of precast pile 10 is simple to at the pre-buried sleeve 30 of tip of precast pile 10, during site operation, the connecting piece only need insert and fix in sleeve 30 can, saved the long time of site operation greatly.

In the present embodiment, the sleeves 30 are uniformly distributed at the end of the precast pile 10, so that the support rib bodies 40 can be uniformly distributed in the capping beam 50, and the reinforcement ratio of the capping beam 50 is increased, thereby increasing the strength of the capping beam 50. It will be appreciated that in order to ensure the strength of the connection between the precast piles 10, sleeves 30 are provided at the ends of each axial rib 22, and the cap 50 can be fixedly connected to the precast pile 10 by means of more support ribs 40.

In the present embodiment, the sleeve 30 is provided with an internal thread, the support rib 40 is provided with an external thread, and the support rib 40 and the sleeve 30 are screwed and fixed. So set up, support muscle body 40 can quick connect in sleeve 30, and it is long when can further save the construction. It is understood that in other embodiments, the supporting rib 40 and the sleeve 30 may be welded, glued, etc., as long as the fixed connection can be achieved, which is not listed here.

In this embodiment, the support rib 40 forms an angle with the axial direction of the precast pile 10. So set up, the support rib body 40 can provide the holding power for the capping beam 50 in distance to can use less support rib body 40 to reach better supporting effect, reduce the cost of manufacture. Preferably, the deflection direction of the support rib 40 relatively far from one end of the precast pile 10 is relatively far away from the axial direction of the precast pile 10; and/or the included angle between the supporting rib body 40 and the axial direction of the precast pile 10 is 0-30 degrees. Further, the angle between the supporting rib 40 and the axial direction of the precast pile 10 is 0 ° to 10 °.

It is understood that in other embodiments, the supporting rib 40 may be disposed in the same direction as the axial direction of the precast pile 10, which is easy to process and can reduce the time required for forming the retaining wall envelope.

In one embodiment, the capping beam 50 is a cast-in-place mortar beam or a cast-in-place concrete beam.

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 order to further improve the water blocking capability of the retaining wall envelope structure, in one embodiment, filling half-grooves 11 are formed in two opposite sides of each precast pile 10, the filling half-grooves 11 penetrate through two end faces of each precast pile 10, and the filling half-groove 11 of one precast pile 10 and the filling half-groove 11 of the other precast pile 10 can be spliced with each other to form a filling groove 12. So set up, not only can reduce the weight of precast pile 10, when pouring capping beam 50 moreover, mortar or concrete can get into and fill up filling groove 12 in filling groove 12 and fill up filling groove 12, have compensatied the gap between two precast pile 10 bodies for retaining wall envelope's the effect that blocks water is better.

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

It can be understood that, if the production cost is not considered, the precast pile 10 may also be a pile with a square outer peripheral wall of the radial cross section, and the filling half-grooves 11 are formed on 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 envelope has combined cast in situ method and the legitimate advantage of precast pile 10 amalgamation, has both had fine the effect that blocks 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.

The utility model provides a dado envelope's manufacture process does: a plurality of precast piles 10 are driven into a river channel side by side, and one end, provided with a sleeve 30, of each precast pile 10 faces upwards; screwing the supporting rib body 40 into the sleeve 30, and applying force to the supporting rib body 40 to enable the supporting rib body 40 to have a certain inclination angle relative to the axis of the precast pile 10; and arranging a cast-in-place mould at the top of the precast pile 10, pouring mortar or concrete into the cast-in-place mould, and demoulding and forming after drying.

The utility model provides a dado envelope can produce the precast pile 10 that has sleeve 30 in the mill, squeeze into the river course with precast pile 10 at the job site, then can splice two precast piles 10 together fast and fix together through cast-in-place capping beam 50, saved the forming time of river course envelope; the supporting rib body 40 is connected with the precast pile 10 and the capping beam 50 at the same time, so that the integrity between the capping beam 50 and the precast pile 10 can be improved, and the stress capacity of the capping beam 50 can be greatly improved by arranging the supporting rib body 40 in the capping beam 50; in addition, when the capping beam 50 is cast in place, the gap between the two precast piles 10 can be filled, the capping beam 50 is compact in structure, the water resistance of the formed retaining wall structure is good, and the flood fighting strength is greatly increased. 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 (10)

1. A retaining wall envelope structure comprises at least two precast piles (10), and is characterized in that a plurality of axial rib bodies (22) are arranged in each precast pile (10), the axial rib bodies (22) are arranged along the axial direction of the precast pile (10), and a sleeve (30) connected with the axial rib bodies (22) is fixedly arranged at the end part of the precast pile (10);

the retaining wall envelope still includes support muscle body (40) and capping beam (50), capping beam (50) are cast-in-place roof beam, capping beam (50) are located two the top of precast pile (10), support muscle body (40) connect in sleeve (30) and be located inside capping beam (50).

2. A retaining wall enclosure according to claim 1 characterized in that each precast pile (10) has opposite facing away sides opened with filling half-grooves (11), the filling half-grooves (11) penetrate both 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 enclosure according to claim 2 characterized in that the filling channel (12) is filled with a filler.

4. A retaining wall enclosure according to claim 3 wherein the capping beam (50) is a cast in place mortar beam or a cast in place concrete beam; and/or the presence of a catalyst in the reaction mixture,

the filler is cast-in-place mortar or cast-in-place concrete.

5. A retaining wall enclosure according to claim 2 characterized in that the cross-sectional shape of the perimeter wall of the filling half-channel (11) in the radial direction of the precast pile (10) is semi-circular and the diameter of the filling half-channel (11) is the same for both sides of the precast pile (10) facing away from each other.

6. A retaining wall enclosure according to claim 1 characterized in that the sleeve (30) is provided with an internal thread and the support rib (40) is provided with an external thread, the support rib (40) and the sleeve (30) being screwed and fixed.

7. A retaining wall enclosure according to claim 6 characterized in that the support tendons (40) are angled to the axial direction of the precast pile (10).

8. A retaining wall enclosure according to claim 1, further comprising a plurality of reinforcement cages (20), wherein the sleeves (30) are provided in plurality, wherein the reinforcement cage (20) comprises a plurality of axial reinforcement bodies (22) and a radial reinforcement body (21), wherein the plurality of axial reinforcement bodies (22) form a frame of the reinforcement cage (20), wherein the radial reinforcement body (21) spirally surrounds the frame of the reinforcement cage (20), and wherein the radial reinforcement body (21) is fixedly connected with the axial reinforcement bodies (22); each sleeve (30) is sleeved with one axial rib body (22).

9. A retaining wall enclosure according to claim 1 characterized in that the precast pile (10) is a tubular pile or a pile with a radial cross section with a rectangular outer peripheral wall.

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

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