Dynamic compaction resistant precast concrete sheet pile

Abstract

The utility model discloses an anti-dynamic compaction precast concrete sheet pile, which belongs to the field of water conservancy facilities and comprises an anti-compaction inner frame, the anti-compaction inner frame comprises a trapezoidal ramming head, a supporting rod is welded on the upper surface of the trapezoidal ramming head, a steel reinforcement framework is bundled on the outer side of the supporting rod, a concrete pile body is poured outside the steel reinforcement framework, and the concrete pile body is connected with the trapezoidal ramming head. According to the scheme, the anti-ramming inner frame is arranged in the concrete pile body and the steel reinforcement framework, the trapezoidal ramming head of the anti-ramming inner frame is arranged at the bottom end of the concrete pile body, the side view of the trapezoidal ramming head is in a right trapezoid shape, the whole pile body can be conveniently rammed into soil, and the supporting rod of the anti-ramming inner frame is exposed out of the top end of the concrete pile body; and a tamping top plate is welded to the top of the supporting rod and used for bearing tamping force of a dynamic compactor, the concrete pile body does not bear the tamping force, damage to the concrete pile body is greatly reduced, the service life of the concrete pile body is guaranteed, and practicability is higher.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy facilities, and more specifically, to a precast concrete sheet pile resistant to dynamic compaction. Background Technology

[0002] Sheet piles, also known as retaining walls, are made of steel or reinforced concrete. They are a type of protective pile and can withstand significant lateral earth and water pressure. Suitable for deep foundation pit support, wharf embankments, and other projects bearing heavy loads, they offer good water-stopping properties. The interlocking connection of steel sheet piles effectively prevents groundwater leakage, making them particularly advantageous in areas with high groundwater levels or in water conservancy projects with stringent waterproofing requirements. However, steel sheet piles have poor corrosion resistance and are generally used for temporary support. Their construction is fast, allowing for quick driving into the ground using a pile driver. After the project is completed, as long as the piles are undamaged, they can be extracted and reused for other projects.

[0003] Precast reinforced concrete sheet piles are highly corrosion-resistant and are used for long-term permanent foundation pit support. They are relatively heavy and thicker than steel sheet piles, and are typically driven in using dynamic compaction. However, the impact force on the sheet pile during driving is significant, easily damaging the concrete and causing micro-cracks and internal injuries. This leads to water seepage, reduced corrosion resistance, and a shortened service life. Therefore, it is necessary to improve the structure of precast reinforced concrete sheet piles to enhance their resistance to dynamic compaction. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a precast concrete sheet pile that can withstand dynamic compaction, which greatly reduces the damage to the concrete pile body, ensures the service life of the concrete pile body, and is more practical.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A precast concrete sheet pile resistant to dynamic compaction includes an inner frame for compaction, the inner frame including a trapezoidal ramming head, a support rod welded to the upper surface of the trapezoidal ramming head, a steel reinforcement cage tied to the outside of the support rod, a concrete pile body poured outside the steel reinforcement cage, a ramming top plate welded to the top of the support rod, and the side view of the trapezoidal ramming head is a right trapezoid.

[0007] Furthermore, a top plate reinforcing rib is welded between the rammed top plate and the support rod.

[0008] Furthermore, a pile docking groove is provided on one side of the concrete pile, and a pile butt joint is provided on the other side of the concrete pile.

[0009] Furthermore, the dimensions of the pile body joint and the pile body mating groove are compatible.

[0010] Furthermore, the reinforcing steel cage includes round reinforcing bars and reinforcing steel hoops, with the reinforcing steel hoops nested on the outside of the round reinforcing bars, and the reinforcing steel hoops and round reinforcing bars being tied together and fixed by binding wire.

[0011] Compared with existing technologies, the advantages of this utility model are:

[0012] This scheme involves installing an internal anti-compaction frame inside the concrete pile and the reinforcing steel cage. The trapezoidal tamping head of the internal anti-compaction frame is placed at the bottom of the concrete pile. The side view of the trapezoidal tamping head is a right trapezoid, which facilitates the entire pile being driven into the soil. The support rod of the internal anti-compaction frame protrudes from the top of the concrete pile, and a tamping top plate is welded to the top of the support rod. The tamping top plate is used to bear the tamping force of the dynamic compaction machine. The concrete pile itself does not bear the tamping force, which greatly reduces the damage to the concrete pile, ensures the service life of the concrete pile, and enhances its practicality. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a three-dimensional structural diagram of the present invention before it is poured.

[0015] Figure 3 This is a three-dimensional structural diagram of the steel reinforcement cage of this utility model after it has been removed.

[0016] Explanation of the labels in the diagram:

[0017] 101. Internal frame for ramming; 111. Trapezoidal ramming head; 112. Ramming top plate; 113. Support rod; 114. Top plate reinforcing bar; 102. Concrete pile; 121. Pile butt joint groove; 122. Pile butt joint; 103. Reinforcing steel cage; 131. Round steel bar; 132. Reinforcing steel hoop. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-3A precast concrete sheet pile resistant to dynamic compaction includes an inner frame 101, which includes a trapezoidal tamping head 111. A support rod 113 is welded to the upper surface of the trapezoidal tamping head 111. A steel reinforcement cage 103 is tied to the outside of the support rod 113. A concrete pile body 102 is poured outside the steel reinforcement cage 103. A tamping top plate 112 is welded to the top of the support rod 113. This arrangement allows the tamping top plate 112 to bear the tamping force of the dynamic compaction machine, thus preventing the concrete pile body 102 from being subjected to tamping force. The side view of the trapezoidal tamping head 111 is a right trapezoid, which facilitates driving the trapezoidal tamping head 111 into the soil.

[0020] See Figures 1-3 A top plate reinforcing rib 114 is welded between the rammed top plate 112 and the support rod 113. This arrangement helps to improve the ramming resistance of the rammed top plate 112.

[0021] See Figures 1-3 One side of the concrete pile 102 is provided with a pile docking groove 121, and the other side of the concrete pile 102 is provided with a pile docking joint 122. This arrangement facilitates the splicing and connection of adjacent concrete piles 102.

[0022] See Figures 1-3 The dimensions of the pile body joint 122 and the pile body docking groove 121 are matched, which facilitates the splicing and connection of adjacent concrete piles 102.

[0023] See Figures 1-3 The steel reinforcement cage 103 includes round steel bars 131 and steel reinforcement hoops 132. The steel reinforcement hoops 132 are nested on the outside of the round steel bars 131, and the steel reinforcement hoops 132 and the round steel bars 131 are tied together with wire. This arrangement helps to improve the mechanical strength of the concrete pile body 102.

[0024] In use: First, lift the entire utility model and transport it directly above the slope that needs to be supported. Then, place the utility model vertically and support the front and rear sides of the utility model. Then, use a dynamic compaction machine to hammer the top plate 112, which will drive the entire utility model into the soil of the slope to achieve the support and reinforcement of the slope.

[0025] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A precast concrete sheet pile for anti-densification, comprising an anti-densification inner frame (101), characterized in that: The anti-pounding inner frame (101) comprises a trapezoidal ramming head (111), the upper surface of the trapezoidal ramming head (111) is welded with a support rod (113), the outer side of the support rod (113) is bundled with a steel reinforcement framework (103), the outside of the steel reinforcement framework (103) is poured with a concrete pile body (102), the top of the support rod (113) is welded with a ramming top plate (112), and the side view of the trapezoidal ramming head (111) is a right trapezoid.

2. The anti-densification precast concrete sheet pile according to claim 1, characterized in that: A top plate reinforcing rib (114) is welded between the ramming top plate (112) and the support rod (113).

3. The anti-densification precast concrete sheet pile according to claim 1, characterized in that: One side of the concrete pile body (102) is provided with a pile body butt joint groove (121), and the other side of the concrete pile body (102) is provided with a pile body butt joint (122).

4. The anti-densification precast concrete sheet pile according to claim 3, characterized in that: The size of the pile body butt joint (122) and the pile body butt joint groove (121) is matched.

5. The anti-densification precast concrete sheet pile according to claim 1, wherein: The steel reinforcement framework (103) comprises a round steel bar (131) and a steel reinforcement hoop (132), the steel reinforcement hoop (132) is nested on the outer side of the round steel bar (131), and the steel reinforcement hoop (132) and the round steel bar (131) are fixed by wire binding.

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