CN220184079U

CN220184079U - Assembled pile plate concrete retaining wall

Info

Publication number: CN220184079U
Application number: CN202321391767.2U
Authority: CN
Inventors: 杜长虹; 王鑫
Original assignee: Tianshui Normal University
Current assignee: Tianshui Normal University
Priority date: 2023-06-02
Filing date: 2023-06-02
Publication date: 2023-12-15
Anticipated expiration: 2033-06-02

Abstract

The utility model relates to an assembled pile plate concrete retaining wall which comprises a plurality of precast concrete piles, precast concrete plates and prestressed anchor cables, wherein one ends of the precast concrete piles are inserted into soil bodies of side slopes, mounting grooves are formed in the side walls of the precast concrete piles, two ends of each precast concrete plate are respectively inserted into the mounting grooves of two adjacent precast concrete piles, a reserved prestressed anchor cable duct is formed in each precast concrete pile, and each prestressed anchor cable penetrates through each prestressed anchor cable duct to be fixedly connected with the outside. The fabricated concrete retaining wall provided by the utility model can reduce foundation excavation, reduce artificial risk, reduce construction cost, shorten construction period, improve construction quality and reduce field wet operation, thereby being beneficial to environmental protection.

Description

Assembled pile plate concrete retaining wall

Technical Field

The utility model relates to the technical field of municipal facilities, in particular to an assembled pile plate concrete retaining wall.

Background

The side slope refers to a geologic body with a temporary surface on the ground surface, and is a landform landscape widely distributed on the ground surface. The modification of natural and artificial slopes to meet engineering needs is known as slope engineering.

The current slope treatment structure body comprises: the gravity type retaining wall is characterized in that the self gravity of the retaining wall is used for maintaining the stability of the retaining wall under the action of soil pressure, and the retaining wall is generally made into a simple trapezoid; the wall-supporting type retaining wall is a light retaining wall, which is formed by adding a supporting wall at intervals along the vertical wall of a cantilever type retaining wall and connecting the vertical wall with heel plates; the reinforced earth retaining wall is formed by filling earth, a pull belt and veneered building blocks, wherein the reinforced earth retaining wall bears lateral pressure of soil, and the reinforced earth retaining wall is formed by adding pull ribs into the soil, so that the deformation condition of the soil and the engineering property of the soil are improved by utilizing the friction effect between the pull ribs and the soil, and the aim of stabilizing the soil is fulfilled; the prestressed anchor cable frame structure is used for reinforcing the landslide body, and can be used as an active reinforcing method, so that the self-stabilization capability of the landslide body can be mobilized, the stress condition of the landslide body can be changed, and the landslide body is safe and stable; the steel pipe piles, a small-caliber bored pile, are generally arranged in groups, have high construction speed, are suitable for emergency treatment, and mainly take slope deformation as main part in treating slope diseases; the composite anchor pile is composed of reinforced concrete and cement grout, and is similar to a vertical anchor pile, so the composite anchor pile is named. The piles are suitable for the isolation function, and the piles in rows can be used for forming a combined consolidation structure of two rows or four rows, so that the purpose of treating the side slope is achieved.

With respect to the related art in the above, the inventors consider that there are the following drawbacks: the traditional retaining wall construction is easy to disturb the soil mass of the side slope, and causes the sliding of part of the soil mass; the traditional retaining wall construction has more wet operation and large damage to the environment; the traditional retaining wall needs a large amount of manual work, and the manual risk and the cost are higher.

Disclosure of Invention

Aiming at the technical problems in the background technology, the utility model provides an assembled pile plate concrete retaining wall, which adopts the following technical scheme:

in a first aspect, the utility model provides an assembled pile plate concrete retaining wall, which comprises a plurality of precast concrete piles, precast concrete plates and prestressed anchor cables, wherein one ends of the precast concrete piles are inserted into soil bodies of side slopes, mounting grooves are formed in the side walls of the precast concrete piles, two ends of each precast concrete plate are respectively inserted into the mounting grooves of two adjacent precast concrete piles, a reserved prestressed anchor cable duct is formed in each precast concrete pile, and each prestressed anchor cable penetrates through each prestressed anchor cable duct to be fixedly connected with the outside.

By adopting the technical scheme, compared with the cast-in-situ concrete wall structure, the fabricated pile plate concrete retaining wall can realize industrialized production in factories and shorten construction period;

the product quality is ensured, and the material input is relatively reduced; the standardized production can save materials and reduce waste; the product has high degree of mechanization, can reduce labor cost and risk, and reduces the field work load, thereby being beneficial to environmental protection.

Preferably, the precast concrete pile comprises a lower precast concrete pile and an upper precast concrete pile, the lower precast concrete pile is inserted into the soil body of the side slope, and the mounting groove is formed in the upper precast concrete pile.

Preferably, the precast concrete pile further comprises a first connecting structure for connecting the lower precast concrete pile and the upper precast concrete pile, the first connecting structure comprises round steel, pile end reserved holes are formed in the lower precast concrete pile and the upper precast concrete pile, and the round steel is inserted into the pile end reserved holes.

Preferably, the precast concrete board is provided with a drain hole.

Preferably, the lower end of the precast concrete board is provided with a protrusion, and the upper end of the precast concrete board is provided with a groove for inserting the protrusion.

Preferably, the precast concrete pile is provided with a plurality of upper-section precast concrete piles, and the precast concrete pile further comprises a second connecting structure for connecting the lower-section precast concrete pile and the upper-section precast concrete pile.

Preferably, the second connecting structure comprises round steel, and the round steel is inserted into a pile end reserved hole on the upper section precast concrete pile.

Preferably, the second connection structure further comprises a grouting layer connected between the two upper precast concrete piles.

Preferably, the second connecting structure further comprises a pre-buried steel plate and a welded steel plate, wherein the pre-buried steel plate is fixedly arranged at the end part of the lower section precast concrete pile, and the welded steel plate is fixedly connected with the welded steel plates of the two upper section precast concrete piles at the same time.

Preferably, the rectangular size of the flat section of the lower section precast concrete pile is 700mm multiplied by 700mm, and the section of the lower section precast concrete pile is gradually reduced to 100mm multiplied by 100mm at the 900mm position of the pile bottom.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. compared with the cast-in-situ concrete wall structure, the fabricated pile plate concrete retaining wall can realize industrialized production in factories and shorten construction period; the product quality is ensured, and the material input is relatively reduced; the standardized production can save materials and reduce waste; the product has high degree of mechanization, can reduce labor cost and risk, and is beneficial to environmental protection due to reduced field work load;

2. the fabricated pile plate concrete retaining wall has the advantages of fabricated structure, and can be suitable for road shoulder wall or river course treatment in mountain area engineering, without a large amount of foundation excavation, so that the manufacturing cost is reduced;

3. the fabricated concrete retaining wall can reduce foundation excavation, reduce artificial risk, reduce construction cost, shorten construction period, improve construction quality and realize less field wet operation, thereby being beneficial to environmental protection.

Drawings

The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and together with the description serve to explain the principles of the utility model. Many of the intended advantages of other embodiments and embodiments will be readily appreciated as they become better understood by reference to the following detailed description. The elements of the drawings are not necessarily to scale relative to each other. Like reference numerals designate corresponding similar parts.

Fig. 1 is a schematic sectional view of an assembled pile plate concrete retaining wall according to an embodiment of the present utility model.

Fig. 2 is a side view, a top view cross-sectional view and a side view cross-sectional view of a precast concrete lower segment pile.

Fig. 3 is a side view and a top view of a precast concrete upper segment pile.

Fig. 4 is a schematic perspective view of a precast concrete panel.

Fig. 5 is a pile extension schematic diagram of a lower section precast concrete pile and an upper section precast concrete pile.

Fig. 6 is a pile extension schematic of two upper section precast concrete piles.

Reference numerals illustrate: 1. prefabricating concrete piles; 2. prefabricating concrete slabs; 3. pre-stress anchor cables; 4. a side slope soil body; 11. a lower precast concrete pile; 12. an upper section precast concrete pile; 122. a prestressed anchor cable duct; 123. embedding a steel plate; 124. welding a steel plate; 125. a mounting groove; 13. round steel; 14. reserving holes at the pile ends; 15. grouting layer; 23. a groove; 24. a protrusion; 25. and a drain hole.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the present utility model are shown in the drawings.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Referring to fig. 1, an assembled pile-slab concrete retaining wall according to an embodiment of the present utility model includes a plurality of precast concrete piles 1, precast concrete slabs 2 and prestressed anchor cables 3.

Referring to fig. 2 and 3, in a specific embodiment, the precast concrete pile 1 includes a lower precast concrete pile 11 and an upper precast concrete pile 12, the lower precast concrete pile 11 is inserted into the slope soil body 4, and the precast concrete slab 2 is mounted on the upper precast concrete pile 12.

In a specific embodiment, the flat section rectangle of the lower precast concrete pile 11 is 700mm×700mm, and the section of the pile bottom at 900mm is gradually reduced to 100mm×100mm. In a specific embodiment, the upper section precast concrete pile 12 has an I-shaped section, the upper flange of the section is 700mm wide and 150mm thick, the lower flange of the section is 700mm wide and 340mm thick, and the web of the section is 400mm wide. And each section of distance of the pile body is reserved with an anchor cable duct.

Referring to fig. 5, in a specific embodiment, the precast concrete pile 1 further includes a first connection structure for connecting the lower-section precast concrete pile 11 and the upper-section precast concrete pile 12, the first connection structure includes a round steel 13, pile end reserved holes 14 are provided on both the lower-section precast concrete pile 11 and the upper-section precast concrete pile 12, and the round steel 13 is inserted into the pile end reserved holes 14.

In the implementation process of the fabricated concrete pile board retaining wall, the lower section of precast concrete pile 11 is firstly deeply buried into the soil to a designed depth, and then the upper section of precast concrete pile 12 is connected with the lower section of precast concrete pile 11 at a position 1 meter below the ground elevation. The pile is subjected to large vertical force and small bending moment at the position, so that pile splicing is completed by respectively inserting two ends of round steel 13 into reserved holes at the upper end of the lower-section precast concrete pile 11 and reserved holes at the lower end of the upper-section precast concrete pile 12.

In a specific embodiment, a pre-stressed anchor cable 3 pore canal is reserved on the precast concrete pile 1, and the pre-stressed anchor cable 3 penetrates through the pre-stressed anchor cable 3 pore canal to be fixedly connected with the outside. The prestressed anchor cable 3 anchors the upper section concrete precast pile to the hard rock stratum through the anchor cable duct of the upper section concrete precast pile. After all piles are constructed to the design position, the two sides of the precast concrete slab 2 are respectively inserted into the concave parts at the two sides of the upper section of concrete precast pile to be matched.

In a specific embodiment, the side wall of the upper concrete precast pile is provided with a mounting groove 125, and two ends of the precast concrete slab 2 are respectively inserted into the mounting grooves 125 of two adjacent precast concrete piles 1.

Referring to fig. 4, in a specific embodiment, the precast concrete panel 2 is provided at a lower end thereof with a protrusion 24, and the precast concrete panel 2 is provided at an upper end thereof with a recess 23 for the protrusion 24 to be inserted. The engagement of the upper and lower precast slabs between precast concrete piles 1 is performed by first inserting the precast concrete slabs 2 into the recesses of the precast concrete slabs 2 to be engaged with the projections of the precast concrete slabs 2. Thus, the precast concrete pile 1, the precast concrete slab 2 and the prestressed anchor cable 3 form an integral novel assembled concrete pile slab retaining wall which resists the lateral pressure of soil mass to ensure the stability of the side slope.

In a specific embodiment, the precast concrete panel 2 is provided with a drain hole 25. The precast concrete slab 2 has a plate thickness of 200mm and a plate width of 1m, and is inserted into the H-shaped section concave of the upper pile in construction and two side surfaces to be matched with the upper pile. One precast concrete panel 2 recess is engaged with the other concrete panel protrusion so that the two panels are connected together. In order to timely drain water in the soil body, holes are reserved in the precast concrete board 2.

Referring to fig. 6, in a specific embodiment, the precast concrete pile 1 is provided with a plurality of upper-section precast concrete piles 12, and the precast concrete pile 1 further includes a second connection structure for connecting the lower-section precast concrete piles 11 and the upper-section precast concrete piles 12.

In a specific embodiment, the second connection structure comprises a round steel 13, and the round steel 13 is inserted into a pile end reserved hole 14 on the upper-section precast concrete pile 12.

In a specific embodiment, the second connection structure further comprises a grouting layer 15, and the grouting layer 15 is connected between the two upper precast concrete piles 12. Further, the second connection structure further comprises an embedded steel plate 123 and a welded steel plate 124, wherein the embedded steel plate 123 is fixedly arranged at the end part of the lower section precast concrete pile 11, and the welded steel plate 124 is fixedly connected with the welded steel plates 124 of the two upper section precast concrete piles 12.

In a specific embodiment, the first connection structure and the second connection structure have the same grouting layer 15, pre-buried steel plate 123 and welded steel plate 124, thereby improving the connection structural strength between the lower-section precast concrete pile 11 and the upper-section precast concrete pile 12 of the first connection structure.

If the pile splicing is needed for the upper-section precast concrete pile 12, the pile splicing is more complicated because the upper-section pile is subjected to small vertical force and large bending moment, the flange on one side of the section of the pile splicing position is subjected to larger compressive stress, and the flange on the other side is subjected to larger tensile stress. The top end of one upper precast concrete pile 12 is connected with the bottom end of the other upper precast concrete pile 12, mortar is pressed into the contact surface and the hole while round steel 13 is required to be inserted into the reserved hole, then a steel plate is pre-buried in the upper precast concrete pile 12, and then the steel plate is welded with the welded steel plate.

The fabricated pile plate concrete retaining wall disclosed by the embodiment of the utility model has the following beneficial technical effects:

1. compared with the cast-in-place concrete structure, the assembled concrete structure can realize industrialized production in factories, and the construction period is shortened; the product quality is ensured, and the material input is relatively reduced; the standardized production can save materials and reduce waste; the product has high mechanization degree, and reduces the labor cost and risk. The field operation amount is reduced, which is beneficial to environmental protection. Is the structure type recommended by the current state. The fabricated retaining wall plays an important role in slope management.

2. The assembled pile plate concrete retaining wall has the advantages of an assembled structure, can be suitable for road shoulder walls or river courses in mountain area engineering, does not need a large amount of foundation excavation, and reduces the manufacturing cost.

4. The traditional retaining wall construction is easy to disturb the soil mass of the side slope, and causes the sliding of part of the soil mass, so that the risk of the sliding of the soil mass is effectively avoided. The traditional retaining wall construction has more wet operations and large damage to the environment, and the utility model promotes green construction. The traditional retaining wall cannot guarantee the site construction quality, and the utility model adopts factory prefabricated components, so that the structural quality is guaranteed. The traditional retaining wall needs a large amount of manual work, and the utility model reduces the manual risk and the manufacturing cost by mechanical operation.

5. The technical key point of the utility model is assembly type, the retaining wall members are connected by inserting connection, and the site almost has no wet operation. The utility model further widens the application range of the assembled retaining wall, and is suitable for mountain building slope treatment, urban river slope protection treatment, mountain road shoulder engineering and the like. The utility model provides a new direction for urban side slope treatment green construction.

While the utility model has been described with reference to specific embodiments, the scope of the utility model is not limited thereto, and any changes or substitutions can be easily made by those skilled in the art within the scope of the utility model disclosed herein, and are intended to be covered by the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The word 'comprising' does not exclude the presence of elements or steps not listed in a claim. The word 'a' or 'an' preceding an element does not exclude the presence of a plurality of such elements. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage. Any reference signs in the claims shall not be construed as limiting the scope.

Claims

1. An assembled stake board concrete retaining wall, its characterized in that: including a plurality of precast concrete piles, precast concrete slab and prestressed anchorage cable, the one end of precast concrete pile inserts in the side slope soil body, be provided with the mounting groove on the lateral wall of precast concrete pile, two adjacent precast concrete pile's mounting groove are inserted respectively at precast concrete slab's both ends, be provided with the prestressed anchorage cable pore canal of reservation on the precast concrete pile, prestressed anchorage cable passes prestressed anchorage cable pore canal and carries out fixed connection with the side slope soil body.

2. A fabricated pile-sheet concrete retaining wall as defined in claim 1, wherein: the prefabricated concrete pile comprises a lower section of prefabricated concrete pile and an upper section of prefabricated concrete pile, wherein the lower section of prefabricated concrete pile is inserted into the soil body of a side slope, and the mounting groove is formed in the upper section of prefabricated concrete pile.

3. A fabricated pile-sheet concrete retaining wall as defined in claim 2, wherein: the precast concrete pile is characterized by further comprising a first connecting structure for connecting the lower precast concrete pile and the upper precast concrete pile, wherein the first connecting structure comprises round steel, pile end reserved holes are formed in the lower precast concrete pile and the upper precast concrete pile, and the round steel is inserted into the pile end reserved holes.

4. A fabricated pile-sheet concrete retaining wall as defined in claim 1, wherein: and a drain hole is formed in the precast concrete board.

5. A fabricated pile-sheet concrete retaining wall as defined in claim 1, wherein: the lower extreme of precast concrete board is provided with the arch, precast concrete board's upper end is provided with the recess that is used for supplying the arch to insert.

6. A fabricated pile-sheet concrete retaining wall as defined in claim 2, wherein: the precast concrete pile is provided with a plurality of upper segment precast concrete piles, precast concrete pile still includes the second connection structure that is used for connecting lower segment precast concrete pile and upper segment precast concrete pile.

7. The fabricated pile-sheet concrete retaining wall of claim 6, wherein: the second connecting structure comprises round steel, and the round steel is inserted into a pile end reserved hole on the upper section precast concrete pile.

8. A fabricated pile-sheet concrete retaining wall as defined in claim 7, wherein: the second connecting structure further comprises a grouting layer, and the grouting layer is connected between the two upper-section precast concrete piles.

9. The fabricated pile-sheet concrete retaining wall of claim 8, wherein: the second connection structure further comprises an embedded steel plate and a welded steel plate, wherein the embedded steel plate is fixedly arranged at the end part of the lower-section precast concrete pile, and the welded steel plate is fixedly connected with the welded steel plates of the two upper-section precast concrete piles.

10. A fabricated pile-sheet concrete retaining wall as defined in claim 2, wherein: the rectangular size of the flat section of the lower section precast concrete pile is 700mm multiplied by 700mm, and the section of the lower section precast concrete pile is gradually reduced to 100mm multiplied by 100mm at the 900mm position of the pile bottom.