A prefabricated pile board modular access road for temporary construction of farmland

Abstract

The application discloses a prefabricated pile plate modularized access road for temporary construction of farmland, which comprises a farmland, prefabricated piles and prefabricated cover plates, the prefabricated piles are arranged in the farmland, the prefabricated cover plates are arranged on the farmland, the bottom buckle grooves of the prefabricated cover plates are buckled on the top ends of the prefabricated piles protruding from the ground, the embedded sleeve rods of the latter prefabricated cover plates are inserted into the embedded sleeves of the former prefabricated cover plates, and the prefabricated cover plates are filled with asphalt materials between the embedded sleeve rods and the embedded sleeves. The prefabricated pile plate modularized access road has the beneficial effects that according to the size of the construction access road and the construction progress, the overall planning and design of the construction access road are carried out in advance, the modularized construction is carried out on site, the construction efficiency is improved, and the construction quality is ensured.

Description

Technical Field

[0001] This application pertains to temporary access roads for building construction, specifically a precast pile-slab modular access road for temporary construction in farmland. It is applicable to the construction of stormwater and sewage ditches in newly built rural domestic stormwater and sewage projects, ensuring no pollution to the surrounding basic farmland. Background Technology

[0002] In the process of vigorously promoting rainwater and sewage separation projects in rural areas, construction in basic farmland areas faces significant challenges. These areas have unique geological conditions, with generally loose soil and weak bearing capacity, becoming increasingly muddy and slippery during the rainy season. This makes it difficult for construction vehicles and heavy equipment to enter the site, often resulting in them getting stuck in the mud. These poor transportation conditions severely restrict the timely supply and efficient turnover of building materials, making the transportation of large-diameter and long rainwater and sewage pipelines particularly difficult.

[0003] The direct consequence is a significant reduction in the efficiency of pipeline installation, forcing a longer construction period. Furthermore, due to transportation disruptions and site limitations, the accuracy of pipeline alignment and the quality of interfaces are difficult to guarantee, affecting not only the construction progress but also posing a potential threat to the final sealing and drainage performance of the diversion system, thus creating a prominent bottleneck restricting the quality and efficiency of the project. Utility Model Content

[0004] The purpose of this application is to provide a precast pile slab modular access road for temporary construction in farmland, which follows the requirements of economic and high-quality environmental protection in engineering construction. Through the precast pile slab modular construction access road structure technology, there is no need to treat the basic farmland area. Construction can be carried out directly on the original soil, with less disturbance to the original soil, speeding up the installation efficiency of rainwater and sewage pipes, reducing the complicated procedures for requisitioning and restoring basic farmland, and not causing pollution to the field occupied by the construction access road and the surrounding soil.

[0005] The objective of this application is achieved through the following technical solution: A modular access road for temporary construction in farmland using precast piles and slabs includes farmland and several precast pile and slab modules. Each precast pile and slab module includes precast piles and precast cover plates. The precast piles are placed in the farmland, and the precast cover plates are placed on the farmland. The bottom groove of the precast cover plate is fastened to the top of the precast pile that extends out of the ground. The front and rear ends of the precast cover plate are respectively provided with embedded sleeves and embedded sleeves. The embedded sleeve of the subsequent precast cover plate is inserted into the embedded sleeve of the previous precast cover plate, and asphalt material is poured between the two.

[0006] Furthermore, the precast pile slab module includes at least two precast piles and a precast cover plate, with the at least two precast piles arranged side by side and the precast cover plate placed on the at least two precast piles.

[0007] Furthermore, the precast pile includes a ring pile body and a ring end plate. The outer contour of the ring pile body is smaller than the outer contour of the ring end plate. The top end of the ring pile body is connected to the ring end plate. The top end of the ring pile body and the ring end plate are located in the bottom groove of the precast cover plate.

[0008] Furthermore, a reinforcing haunch plate is provided between the ring pile body and the ring end plate.

[0009] Furthermore, the reinforcing armpit plates are arranged in a cross shape.

[0010] Furthermore, the precast cover plate includes concrete and a reinforced skeleton encased within the concrete.

[0011] Furthermore, the reinforcement skeleton includes transverse reinforcement, longitudinal reinforcement and longitudinal edge reinforcement, and the ends of the longitudinal edge reinforcement are provided with upward bends.

[0012] Furthermore, the prefabricated cover plate is equipped with lifting rings.

[0013] Furthermore, the prefabricated cover plate is provided with at least two sets of embedded rods and embedded sleeves.

[0014] The beneficial effects of this application are: 1. Based on the dimensions and construction schedule of the access road, conduct overall planning and design of the access road in advance, and improve construction efficiency and ensure construction quality through modular construction on site.

[0015] 2. The materials used are readily available, the manufacturing and installation are simple, the disassembly is flexible and convenient, and the remaining materials can be reused, reducing material costs.

[0016] 3. Using steel pipe piles as supports for the overhead crane cover plate, soil is retained during the driving process, which not only makes the whole structure more stable, but also prevents pollution of farmland soil during subsequent demolition.

[0017] 4. The fixed system is easy and sturdy to set up, and uses welding, prefabrication and other connection methods. On-site, only insertion and filling are required, without special processes, which reduces the difficulty of construction.

[0018] 5. This construction method is highly efficient, saves labor, ensures the construction schedule, improves construction quality, and allows steel pipe piles and precast cover plates to be used multiple times, generating significant economic benefits for the construction unit, as well as substantial social benefits.

[0019] The aforementioned main solution and its various further alternatives can be freely combined to form multiple solutions, all of which are solutions that can be adopted and are claimed in this application; furthermore, the (non-conflicting alternatives) can also be freely combined with each other and with other alternatives. Those skilled in the art, after understanding the solution of this application, will realize from the prior art and common general knowledge that there are many combinations, all of which are technical solutions to be protected by this application, and will not be exhaustively listed here. Attached Figure Description

[0020] Figure 1 This is a structural diagram of this application.

[0021] Figure 2 This is the structural front view of the precast piles in this application.

[0022] Figure 3 This is a top view of the precast pile structure in this application.

[0023] Figure 4 This is a top view of the prefabricated cover plate of this application (two sets of inserts).

[0024] Figure 5 This is a top view of the prefabricated cover plate of this application (three sets of inserts).

[0025] Figure 6 This is the structural front view of the prefabricated cover plate of this application.

[0026] In the diagram: 1-Precast pile, 2-Precast cover plate, 3-Embedded sleeve, 4-Embedded sleeve, 5-Asphalt material, 6-Farmland; 101-Ring pile body, 102-Ring end plate, 103-Reinforcing haunch plate, 201-Concrete, 202-Transverse reinforcement, 203-Longitudinal reinforcement, 204-Longitudinal edge reinforcement, 205-Bending part, 206-Lifting ring, 207-Bottom groove. Detailed Implementation

[0027] The following non-limiting embodiments are used to illustrate this application.

[0028] Example 1 refer to Figures 1-6 As shown, a modular access road for temporary construction in farmland using precast pile slabs includes several precast pile slab modules, asphalt material 5, and farmland 6. The precast pile slab modules include precast piles 1, precast cover plates 2, embedded sleeves 3, and embedded sleeves 4.

[0029] Precast pile 1 is placed in farmland 6, serving as the most basic load-bearing and supporting part of the access road. Precast pile 1 is directly driven into farmland 6, preserving the original soil during the driving process, which not only makes the whole structure more stable, but also prevents pollution of the farmland soil during subsequent removal, thus achieving green and environmentally friendly construction.

[0030] The precast cover 2 is placed on the farmland 6 and is the part that directly supports vehicles and personnel. The precast cover 2 is additionally supported by the surface of the farmland 6, which can improve the stability of the precast cover 2 and prevent it from overturning.

[0031] The bottom groove 207 of the precast cover plate 2 is fastened to the top of the precast pile 1 that extends out of the ground surface. That is, the precast pile 1 supports the precast cover plate 2. At the same time, the horizontal position of the precast cover plate 2 is limited by the locking cooperation between the precast pile 1 and the bottom groove 207, so as to prevent the precast cover plate 2 from sliding horizontally.

[0032] The front and rear ends of the precast cover plate 2 are respectively equipped with embedded sleeves 3 and embedded sleeves 4. The embedded sleeves 3 of the subsequent precast cover plate 2 are inserted into the embedded sleeves 4 of the preceding precast cover plate 2, and asphalt material 5 is poured between the two. The front and rear precast cover plates 2 are connected as a whole by a plug-in structure, so the entire sidewalk forms a whole under stress, which can improve the load-bearing capacity of the sidewalk.

[0033] The asphalt material 5 achieves an adhesive connection between the sleeve and the bushing. Firstly, the asphalt material fills the gap between the sleeve and the bushing, achieving a tight insertion connection. Secondly, the asphalt material has a buffering effect, reducing friction while effectively protecting the sleeve and bushing from wear.

[0034] The precast pile-slab module includes at least two precast piles 1 and a precast cover plate 2. The at least two precast piles 1 are arranged side by side, and the precast cover plate 2 is placed on the at least two precast piles 1. That is, the precast cover plate 2 is supported by at least two precast piles 1, which can effectively ensure the stability of the precast cover plate 2. Preferably, two precast piles 1 are used.

[0035] The precast pile 1 is a steel pipe pile, comprising a ring pile body 101 and a ring end plate 102. The ring pile body 101 is preferably a circular ring-shaped pile tube, enabling rapid driving into the farmland 6 with minimal disturbance to the soil and no additional construction pollution. The ring end plate 102 is preferably a circular ring-shaped plate to provide a horizontal supporting end face, ensuring the stable placement of the cover plate.

[0036] The outer contour of the ring pile body 101 is smaller than the outer contour of the ring end plate 102. The top of the ring pile body 101 is connected to the ring end plate 102. That is, the ring end plate 102 extends outward from the top of the ring pile body 101 to increase the supporting area and further improve the stability of the cover plate installation.

[0037] The top end of the ring pile body 101 and the ring end plate 102 are located within the bottom fastening groove 207 of the precast cover plate 2, meaning the top end of the ring pile body 101 extends into the bottom fastening groove 207, specifically achieving contact support for the cover plate through the ring end plate 102. A reinforcing armpit plate 103 is provided between the ring pile body 101 and the ring end plate 102 to improve the connection strength between them. The reinforcing armpit plate 103 is arranged in a cross shape.

[0038] The end plate 102 is made of Q235B steel plate, 27mm thick, while the pile body 101 is made of Q235B steel, with dimensions of φ609×16mm, and is welded at the steel reinforcement processing plant. The pile body 101 is 4.1m long (the length can also be made according to each section's geological survey report). The end plate 102 is positioned at the top of the pile body 101 using a 27mm thick triangular armpit plate, which is butt-welded to the pile body or plate using full penetration welding. The triangular armpit plates are arranged in a cross-shaped symmetrical pattern along the same diameter line, and the end plate 102 is welded on top using the triangular armpit plates. The end plate 102 is used to increase the load-bearing surface.

[0039] The precast cover slab 2 comprises concrete 201 and a reinforced skeleton encased within the concrete 201. The concrete is C30, and the concrete cover for the reinforcing bars is ≥3.5cm. The reinforced skeleton includes transverse reinforcement 202, longitudinal reinforcement 203, and longitudinal edge reinforcement 204. The transverse reinforcement 202 and longitudinal reinforcement 203 are staggered to form the skeleton, and the longitudinal edge reinforcement 204 enhances the structure of the longitudinal edges. The ends of the longitudinal edge reinforcement 204 are provided with upward bends 205 to improve the anchorage strength. The precast cover slab 2 is equipped with lifting rings 206, which are pre-welded and fixed to the reinforcement, and the cover slab is lifted using the lifting rings 206.

[0040] Precast cover plate 2 is a cuboid structure with a dimension of 3000mm. 2500mm 250mm thick, internally reinforced with HRB400 grade steel bars and Φ12@120 double-layer bidirectional reinforcement, with double-sided welding preferred. Longitudinal edge reinforcement is provided at the edge of the slab to improve strength, and the ends of the reinforcement are bent up to enhance anchorage.

[0041] The precast cover plate 2 is provided with at least two sets of embedded sleeves 3 and embedded sleeves 4. The embedded sleeves 3 are steel bars with a length of 45 mm and a diameter of 20 mm, and the spacing between the sleeves is 250 mm. The plates are embedded with steel sleeves with a diameter of 22 mm, and their positions and quantities are the same as and correspond to the sleeves. The preferred insertion structure is two sets arranged symmetrically on both sides or three sets with an additional set in the middle.

[0042] Asphalt is injected between the sleeve and the bushing to ensure that when the pressure of the vehicle is applied to the precast cover plate, it can effectively buffer, reduce friction, and effectively protect the steel rod and bushing.

[0043] After the precast cover plates pass the concrete test, they are used modularly with the steel pipe piles and transported to the site by truck. They are then used in conjunction with the steel pipe pile driving machine for pile driving, and then the precast cover plates are laid. This process is repeated in a cyclical manner.

[0044] The specific construction steps are as follows: Based on the construction drawings and construction plan, the pipeline routing is laid out and located. Taking into account the on-site houses, ditches, transportation roads, and possible future changes, precast piles are designed and manufactured. Precast piles and precast cover plates are then manufactured at the on-site steel reinforcement processing site.

[0045] A piling machine is used to drive precast piles 1 into farmland 6, ensuring the top of each pile protrudes above the ground. Steel pipe piles are then driven to a relative elevation of ±0.05m according to the plan. A crane is used to place precast cover plates 2 onto farmland 6, ensuring they contact the ground to increase stability and resistance to overturning. The bottom locking groove 207 of the precast cover plate 2 is fastened to the top of the precast piles 1.

[0046] The embedded sleeve 3 of the subsequent precast cover plate 2 is inserted into the embedded sleeve 4 of the preceding precast cover plate 2, and asphalt material 5 is poured between the two. First, asphalt material 5 is poured into the embedded sleeve 4 of the preceding precast cover plate 2, and then the embedded sleeve 3 of the subsequent precast cover plate 2 is inserted to achieve the closing of the preceding and following precast cover plates 2.

[0047] The hoisting of precast cover plates must be directed by a signalman on site, and a dedicated person must apply asphalt when the precast cover plates are closed to reduce wear between them.

[0048] After the construction site is completed, the dismantling process is carried out in the reverse order of the installation steps. First, the precast cover plate is lifted up, and then the steel pipe piles are pulled out and stored in the warehouse for reuse.

[0049] The foregoing basic examples and their further alternative examples can be freely combined to form multiple embodiments, all of which are embodiments that can be adopted and claimed in this application. In the scheme of this application, each alternative example can be arbitrarily combined with any other basic example and alternative example.

[0050] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A precast pile-slab modular access road for temporary construction in farmland, comprising farmland (6), characterized in that: It also includes several precast pile slab modules, each including a precast pile (1) and a precast cover plate (2). The precast pile (1) is placed in the farmland (6), and the precast cover plate (2) is placed on the farmland (6). The bottom groove (207) of the precast cover plate (2) is fastened to the top of the precast pile (1) extending out of the ground. The front and rear ends of the precast cover plate (2) are respectively provided with embedded sleeves (3) and embedded sleeves (4). The embedded sleeves (3) of the next precast cover plate (2) are inserted into the embedded sleeves (4) of the previous precast cover plate (2), and asphalt material (5) is poured between the two.

2. The precast pile-slab modular access road for temporary construction in farmland according to claim 1, characterized in that: The precast pile slab module includes at least two precast piles (1) and a precast cover plate (2). The at least two precast piles (1) are arranged side by side, and the precast cover plate (2) is placed on the at least two precast piles (1).

3. The precast pile-slab modular access road for temporary construction in farmland according to claim 2, characterized in that: The precast pile slab module includes two precast piles (1).

4. The precast pile-slab modular access road for temporary construction in farmland according to claim 1 or 2, characterized in that: The precast pile (1) includes a ring pile body (101) and a ring end plate (102). The outer contour of the ring pile body (101) is smaller than the outer contour of the ring end plate (102). The top of the ring pile body (101) is connected to the ring end plate (102). The top of the ring pile body (101) and the ring end plate (102) are located in the bottom groove (207) of the precast cover plate (2).

5. The precast pile-slab modular access road for temporary construction in farmland according to claim 4, characterized in that: A reinforcing haunch plate (103) is provided between the ring pile body (101) and the ring end plate (102).

6. The precast pile-slab modular access road for temporary construction in farmland according to claim 5, characterized in that: The reinforcing armpit plate (103) is arranged in a cross shape.

7. The precast pile-slab modular access road for temporary construction in farmland according to claim 1 or 2, characterized in that: The precast cover plate (2) includes concrete (201) and a reinforced skeleton enclosed within the concrete (201).

8. The precast pile-slab modular access road for temporary construction in farmland according to claim 7, characterized in that: The reinforcement skeleton includes transverse reinforcement (202), longitudinal reinforcement (203) and longitudinal edge reinforcement (204), and the ends of the longitudinal edge reinforcement (204) are provided with upward bending portions (205).

9. The precast pile-slab modular access road for temporary construction in farmland according to claim 7, characterized in that: The prefabricated cover plate (2) is provided with a lifting ring (206).

10. The precast pile-slab modular access road for temporary construction in farmland according to claim 1, characterized in that: The prefabricated cover plate (2) is provided with at least two sets of pre-embedded sleeves (3) and pre-embedded sleeves (4).

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