Soft soil foundation reinforcing structure

Abstract

The utility model discloses a soft soil foundation reinforcing structure which comprises a plurality of tubular reinforcing piles, all the reinforcing piles are vertically arranged and distributed in a soft soil foundation in an array mode, a connecting steel bar is arranged between every two adjacent reinforcing piles so as to connect the two reinforcing piles, the connecting steel bars are located at the upper ends of the reinforcing piles, and therefore a steel bar net is formed at the upper ends of all the reinforcing piles. The top surfaces of the reinforcing piles are opened to form grouting holes, and a plurality of grout overflow holes are uniformly distributed in the side wall of each reinforcing pile, so that cement mortar enters the soft soil foundation through the grout overflow holes while being injected into the reinforcing piles from the grouting holes, and the soft soil foundation around the reinforcing piles is reinforced; and meanwhile, concrete is poured on the reinforcing mesh, so that a concrete reinforcing layer is formed on the reinforcing mesh. The structure is short in construction period, convenient to construct, high in site adaptability, low in manufacturing cost and capable of effectively improving the bearing capacity of the soft soil foundation.

Description

Technical Field

[0001] This utility model belongs to the field of soft soil foundation treatment technology, and relates to a soft soil foundation reinforcement structure. Background Technology

[0002] The foundation is a crucial supporting structure for buildings or structures, and its stability and load-bearing capacity directly affect the safety and service life of the superstructure. Foundations are mainly divided into two categories: natural foundations and artificial foundations (composite foundations). Natural foundations are those that can bear the entire load of the foundation under natural conditions without artificial treatment. However, in areas with complex geological conditions, such as soft soil foundations (e.g., sandy soil, silt), the load requirements of the superstructure are often insufficient, easily leading to problems such as foundation settlement and uneven settlement, which in turn affect the stability and safety of the building. Therefore, it is necessary to reinforce the soft soil foundation before construction.

[0003] Traditional methods for treating soft soil foundations mainly include dynamic compaction and drainage consolidation. Dynamic compaction involves excavating shallow soft soil, replacing it with sand, gravel, or other materials, and then tamping the replacement material with a heavy hammer. Drainage consolidation utilizes vacuum negative pressure drainage to reduce settlement of the soft soil foundation. These methods can improve the bearing capacity of soft soil foundations and reduce settlement to some extent. However, dynamic compaction is only suitable for shallow soft soil layers; if the soft soil layer is thick, the excavation volume is large and uneconomical. Drainage consolidation requires at least several months, resulting in a long construction period.

[0004] Therefore, for soft soil foundations that are thick and difficult to excavate, providing a reinforcement structure that has a short construction period, is easy to construct, has strong site adaptability, is economical in cost, and can effectively improve the bearing capacity of soft soil foundations is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the existing technology, the purpose of this utility model is to provide a soft soil foundation reinforcement structure. This utility model has a short construction period, is easy to construct, has strong site adaptability, is economical in cost, and can effectively improve the bearing capacity of soft soil foundation.

[0006] The technical solution of this utility model is implemented as follows:

[0007] A soft soil foundation reinforcement structure includes several tubular reinforcement piles. All reinforcement piles are vertically arranged and distributed in an array within the soft soil foundation. Connecting steel bars are provided between adjacent reinforcement piles to connect the two reinforcement piles. The connecting steel bars are located at the upper end of the reinforcement piles, thereby forming a steel mesh at the upper end of all reinforcement piles. The top surface of the reinforcement piles is open to form grouting holes, and several overflow holes are evenly distributed on the side wall of each reinforcement pile. This facilitates the injection of cement mortar into the reinforcement piles from the grouting holes, while the cement mortar enters the soft soil foundation through the overflow holes to reinforce the soft soil foundation around the reinforcement piles.

[0008] Meanwhile, concrete is poured onto the steel mesh to form a concrete reinforcement layer.

[0009] Furthermore, each reinforced pile includes four scaffolding tubes and several square fixing frames. The four scaffolding tubes are located inside the fixing frames and are fixedly connected to the fixing frames respectively. All fixing frames are spaced apart along the length of the scaffolding tubes. The two ends of the connecting steel bars are respectively connected to the fixing frames at the upper ends of the two adjacent reinforced piles.

[0010] Furthermore, the scaffold tube is provided with four first connecting holes, which are evenly distributed on the same horizontal plane. The fixed frame is provided with second connecting holes that are connected to the first connecting holes of the scaffold tube, so that the scaffold tube and the fixed frame can be fixedly connected by connecting bolts.

[0011] Furthermore, the fixed frame has positioning holes at the center of its four sides, and positioning bolts are provided in the positioning holes. The two ends of the connecting steel bars are welded and fixed to the corresponding two positioning bolts respectively.

[0012] Furthermore, the scaffolding tube is a discarded and recycled scaffolding tube.

[0013] Furthermore, the bottom of the reinforcing pile is equipped with a pile tip, with the pointed end of the pile tip facing downwards, which facilitates driving the reinforcing pile into the soft soil foundation.

[0014] Furthermore, the thickness of the concrete reinforcement layer is greater than or equal to 20cm.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This utility model uses discarded scaffolding pipes to make reinforcing piles, realizing the resource utilization of scaffolding pipes. This not only saves valuable steel resources but also effectively reduces economic costs. At the same time, this utility model uses four scaffolding pipes and several reinforcing frames to make reinforcing piles, which can effectively improve the structural strength and bearing capacity of the reinforcing piles.

[0017] 2. This utility model provides several overflow holes on the side wall of the reinforced pile. When cement mortar is injected into the reinforced pile from the grouting hole at the top of the reinforced pile, some of the cement mortar flows out from the overflow holes and into the soft soil foundation around the reinforced pile, thereby reinforcing the soft soil foundation around the reinforced pile, improving the structural stability of the reinforced pile, and increasing the bearing capacity of the reinforced pile; the connecting steel bars connect all the reinforced piles to form a whole, and concrete is poured on the connecting steel bars. After the concrete solidifies, it forms a whole with all the reinforced piles, thereby effectively improving the bearing capacity of the soft soil foundation.

[0018] 3. This utility model has a short construction period and is simple to construct, which can effectively improve construction efficiency. It is also suitable for soft soil foundations with large soft soil thickness that are difficult to excavate. Attached Figure Description

[0019] Figure 1 - A schematic diagram of the structure of this utility model.

[0020] Figure 2 - Enlarged schematic diagram of the upper end of the reinforcement pile.

[0021] Wherein: 1-soft soil foundation; 2-reinforcement pile; 21-pile tip; 22-scaffolding pipe; 23-fixing frame; 24-grout overflow hole; 25-connecting bolt; 3-concrete reinforcement layer; 4-connecting steel bar; 5-positioning bolt. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0023] See Figure 1 and Figure 2 A soft soil foundation reinforcement structure includes several tubular reinforcement piles 2. All reinforcement piles 2 are vertically arranged and distributed in an array within the soft soil foundation 1. A connecting steel bar 4 is provided between two adjacent reinforcement piles 2 to connect the two reinforcement piles 2. The connecting steel bar 4 is located at the upper end of the reinforcement pile 2, thereby forming a steel mesh at the upper end of all reinforcement piles 2. The top surface of the reinforcement pile 2 is open to form grouting holes, and several overflow holes 24 are evenly distributed on the side wall of each reinforcement pile 2. This facilitates the injection of cement mortar into the reinforcement pile 2 from the grouting holes, while the cement mortar enters the soft soil foundation through the overflow holes 24 to reinforce the soft soil foundation 1 around the reinforcement pile 2 and improve the bearing capacity of the reinforcement pile 2.

[0024] At the same time, concrete is poured onto the steel mesh to form a concrete reinforcement layer 3 with a thickness of 20cm or more on the steel mesh.

[0025] In this construction process, the soft soil foundation to be reinforced is first leveled and marked. Then, reinforcement piles are driven into the soft soil foundation at each marked point. Next, connecting steel bars are attached to the top of the reinforcement piles, connecting all the piles into a single unit and forming a mesh-like steel reinforcement at the top of the piles. Then, cement mortar is injected into the reinforcement pile through the grouting hole at the top of the pile. Simultaneously, some cement mortar flows out from the overflow hole into the soft soil foundation surrounding the pile, thus reinforcing the soft soil foundation around the pile, improving the structural stability and bearing capacity of the reinforcement pile. Finally, concrete is poured onto the steel reinforcement mesh. After the concrete solidifies, it forms a unified whole with all the reinforcement piles within the soft soil foundation, completing the reinforcement of the soft soil foundation. The entire construction process is convenient and fast, effectively improving the bearing capacity of soft soil foundations.

[0026] The concrete reinforcement layer here completely encloses the connecting steel bars.

[0027] In specific implementation, each reinforced pile 2 includes four discarded and recycled scaffolding pipes 22 and several square fixing frames 23. The four scaffolding pipes 22 are located inside the fixing frames 23 and are fixedly connected to the fixing frames 23 respectively. All fixing frames 23 are spaced apart along the length of the scaffolding pipes 22. The two ends of the connecting steel bars 4 are respectively connected to the fixing frames 23 at the upper ends of the two adjacent reinforced piles 2.

[0028] Scaffolding pipes are steel pipes used in scaffolding construction. On construction sites, they are commonly used to construct scaffolding. After a project is completed, these pipes may be discarded due to rust and aging. By reusing these pipes, which would otherwise be considered waste, not only are valuable steel resources saved, but energy consumption and environmental pollution caused by mining and processing new steel are also reduced. This aligns with the concept of green and energy-efficient buildings and has significant environmental benefits. Furthermore, the use of four scaffolding pipes and a fixed frame to form a reinforcing pile effectively ensures the structural strength of the pile.

[0029] In specific implementation, the scaffold tube 22 is provided with four first connection holes, which are evenly distributed on the same horizontal plane. The fixed frame 23 is provided with second connection holes that are connected to the first connection holes of the scaffold tube 2, so that the scaffold tube 22 and the fixed frame 23 can be fixedly connected by connecting bolts 25.

[0030] In practice, the fixed frame 23 has positioning holes at the center of its four sides, and positioning bolts 5 are provided in the positioning holes. The two ends of the connecting steel bar 4 are welded and fixed to the corresponding two positioning bolts 5 respectively.

[0031] Here, positioning bolts are set on the positioning holes, and then the reinforcing bars are connected and welded to the positioning bolts for fixation. This facilitates welding, makes construction easier, and avoids damage to the fixing frame during the welding process.

[0032] In practice, the bottom of the reinforcing pile 2 is provided with a pile tip 21, and the tip of the pile tip 21 is facing downward, so as to facilitate the driving of the reinforcing pile 2 into the soft soil foundation 1.

[0033] During construction, the soft soil foundation to be reinforced is first leveled and marked, and the scaffolding pipes are fixed to the reinforcement frame. Then, the pile tips are welded to the bottom. Next, a hydraulic pile driver is used to drive the reinforcement piles into the soft soil foundation at each marked point. Then, connecting steel bars are welded to the reinforcement frame at the top of the reinforcement piles, thus connecting all the reinforcement piles into a whole and forming a mesh of steel bars at the top of the reinforcement piles. Cement mortar is then injected into the reinforcement piles through the grouting holes at the top of the piles. As the cement mortar enters the reinforcement piles, some of it flows out from the overflow holes into the soft soil foundation around the piles, thereby reinforcing the soft soil foundation around the piles, improving the structural stability and bearing capacity of the reinforcement piles. Finally, concrete is poured on the steel mesh. After the concrete solidifies, it forms a whole with all the reinforcement piles in the soft soil foundation, thus completing the reinforcement of the soft soil foundation.

[0034] Finally, it should be noted that the above embodiments of this utility model are merely examples for illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations and modifications based on the above description. It is impossible to exhaustively list all possible implementations here. All obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A soft soil foundation reinforcement structure, characterized in that, It includes several tubular reinforcing piles, all of which are vertically arranged and distributed in an array within the soft soil foundation. Connecting steel bars are provided between adjacent reinforcing piles to connect the two piles. The connecting steel bars are located at the upper end of the reinforcing piles, thereby forming a steel mesh at the upper end of all reinforcing piles. The top surface of the reinforcing piles is open to form grouting holes, and several overflow holes are evenly distributed on the side wall of each reinforcing pile. This allows cement mortar to be injected into the reinforcing piles from the grouting holes, while the cement mortar enters the soft soil foundation through the overflow holes to reinforce the soft soil foundation around the reinforcing piles. Meanwhile, concrete is poured onto the steel mesh to form a concrete reinforcement layer.

2. The soft soil foundation reinforcement structure according to claim 1, characterized in that, Each reinforced pile includes four scaffolding tubes and several square fixing frames. The four scaffolding tubes are located inside the fixing frames and are fixedly connected to the fixing frames respectively. All fixing frames are spaced apart along the length of the scaffolding tubes. The two ends of the connecting steel bars are respectively connected to the fixing frames at the upper ends of the two adjacent reinforced piles.

3. The soft soil foundation reinforcement structure according to claim 2, characterized in that, The scaffold tube has four first connection holes, which are evenly distributed on the same horizontal plane. The fixed frame has second connection holes that are connected to the first connection holes of the scaffold tube, so that the scaffold tube and the fixed frame can be fixedly connected by connecting bolts.

4. The soft soil foundation reinforcement structure according to claim 3, characterized in that, The fixed frame has positioning holes at the center of its four sides, and positioning bolts are installed in the positioning holes. The two ends of the connecting steel bars are welded and fixed to the corresponding two positioning bolts.

5. A soft soil foundation reinforcement structure according to claim 2, characterized in that, The scaffolding tubes are recycled waste scaffolding tubes.

6. A soft soil foundation reinforcement structure according to any one of claims 1 to 5, characterized in that, The reinforcement pile has a pile tip at the bottom, with the pointed end of the pile tip facing downwards, which makes it easier to drive the reinforcement pile into the soft soil foundation.

7. A soft soil foundation reinforcement structure according to claim 1, characterized in that, The thickness of the concrete reinforcement layer is greater than or equal to 20cm.

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