Construction method of slide-resistant pile

Abstract

The invention discloses a construction method of an anti-slide pile. The construction method comprises the following steps that firstly, construction preparation is conducted; step 2, surveying and setting out; thirdly, hole forming and wall protecting construction are conducted; hole forming is started, a segmented hole forming and segmented wall protecting method is adopted in the construction process, a reinforced concrete protection wall is adopted as a protection wall, and a protection wall formwork with a rectangular section is adopted for pouring when the protection wall is poured; the protection wall comprises a protection wall section I which is adjacent to one side of the road and has a U-shaped section, and a protection wall section for sealing the opening side of the protection wall section I, and a separation template I is arranged at the joint of the protection wall section I and the protection wall section II; fourthly, hole cleaning and second formwork separation construction are conducted; fifthly, a reinforcement cage is manufactured and installed; sixthly, anti-slide pile concrete is poured; and seventhly, the slope is excavated. The method has the advantages that the method is simpler and more efficient, manpower and material resources are saved, the quality and attractiveness of the whole project are improved, and the method is very suitable for reinforcement in excavation of the mountain prone to landslide.

Description

Technical Field

[0001] The invention relates to the technical field of slope construction technology, and in particular to a construction method of an anti-slide pile. Background Art

[0002] Anti-slide piles are an important slope reinforcement structure, widely used in geological disaster management projects such as landslide prevention and control and slope stabilization. By embedding reinforced concrete piles deep into the ground, they provide strong shear resistance and friction to resist the movement of landslides, effectively improving the overall stability of the slope.

[0003] To effectively prevent landslides, existing anti-slip piles used for slope support typically install the anti-slip piles first, followed by excavation of the slope soil. This method is particularly suitable for areas requiring critical protection, such as the roadbed or construction site. During current pile foundation construction, the retaining wall and the anti-slip pile body are typically constructed as a single unit, meaning the outer portion of the retaining wall naturally becomes the exposed surface of the anti-slip pile. However, since the retaining wall surface is in direct contact with the soil to be excavated, the outer surface of the retaining wall often exhibits an uneven surface after excavation, often containing dirt and impurities. Therefore, to achieve the desired aesthetic effect, a post-construction framework must be constructed for additional polishing and decorative work, such as the installation of external stone slabs. This complex series of subsequent treatments not only significantly increases construction costs, but also increases the overall size of the anti-slip piles due to the presence of the retaining wall and additional decorative materials, encroaching on the roadbed. To maintain the original roadbed width, the excavation width often needs to be further expanded, which undoubtedly increases project complexity and resource consumption. This not only increases the overall cost of the project, but also brings more challenges to the construction and increases the construction period, so it is necessary to make improvements. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a construction method for anti-slip piles.

[0005] In order to solve the above technical problems, the technical solution of the present invention is:

[0006] A construction method for anti-slip piles comprises the following steps:

[0007] Step 1: Construction Preparation

[0008] Clean up the construction site and ensure there are no obstacles that affect the construction;

[0009] Step 2: Measure and lay out

[0010] Accurately stake out the positions of each pile on site according to the design drawings;

[0011] Step 3: Hole forming and retaining wall construction

[0012] Start hole forming. During the construction process, the method of segmental hole forming and segmental retaining wall is adopted. The retaining wall is made of reinforced concrete, and when pouring the retaining wall, the retaining wall template with a rectangular cross-section is used for pouring; The retaining wall includes retaining wall section 1 with a U-shaped cross-section on the side facing the road, and retaining wall section 2 that closes the opening side of retaining wall section 1. A partition template 1 is provided at the connection between retaining wall section 1 and retaining wall section 2;

[0013] Step 4: Hole cleaning and construction of separating template 2

[0014] After hole forming, clean the bottom of the hole, remove the sediment, ensure the bottom of the hole is clean, and clean the surface of retaining wall section 1; Then, fix the separating template 2 on the inner surface of retaining wall section 1. The cross-section of the separating template 2 is also U-shaped;

[0015] Step 5: Manufacturing and installation of steel reinforcement cage

[0016] Precast the steel reinforcement cage on the ground according to the design requirements to ensure the accurate size of the steel reinforcement cage; After the steel reinforcement cage is manufactured, use a crane to hoist it into the hole and adjust its position to ensure it is centered;

[0017] Step 6: Pouring anti-slide pile concrete

[0018] Pour the concrete to ensure the uniform and dense quality of the concrete. At the same time, control the slump of the concrete to avoid segregation;

[0019] Step 7: Slope excavation

[0020] After the anti-slide pile concrete reaches the removal strength, excavate the side of the slope facing the road. After excavation, remove the U-shaped retaining wall section 1, partition template 1 and separating template 2 to obtain an anti-slide pile with a flat surface on the side facing the road.

[0021] Preferably, in step 2, the position of the pile is marked with wooden stakes or steel bars.

[0022] Preferably, in step 3, the hole forming is carried out by mechanical drilling or manual excavation.

[0023] Preferably, in step 4, the separating template 2 is made of waterproof board and is fixedly connected to the retaining wall by shooting nails or cement nails.

[0024] Preferably, in step 4, the partition template 1 is made of waterproof board and is fixedly connected to the steel bars of the retaining wall section 2 by iron wires.

[0025] Preferably, in step 6, the concrete is poured continuously from the bottom of the hole upwards by the conduit method.

[0026] Adopting the above technical solutions has the following advantages:

[0027] The present invention utilizes separator forms 1 and 2 to completely separate the retaining wall section 1 on the roadside of the anti-slip pile from the main structure of the anti-slip pile. By placing these two specialized separator forms between the anti-slip pile and its roadside retaining wall, the present invention effectively avoids the problem of close integration between the two in traditional processes, resulting in rough and uneven exposed surfaces that require polishing, decoration, and other treatments. Once the anti-slip pile is cast, the next step is to excavate the soil on the roadside of the mountain. Separator forms 1, 2, and retaining wall section 1, which were previously installed, are then removed in sequence. This treatment results in a smooth and regular surface on the outward-facing side of the anti-slip pile, allowing for direct decorative applications such as painting, effectively reducing the workload associated with treating the exposed surface of the anti-slip pile. The technical solution of the present invention not only significantly reduces the workload associated with subsequent treatment of the exposed anti-slip pile surface, but also significantly reduces the associated construction costs. Compared to the complex surface treatment process required by conventional processes involving the integral molding of the anti-slip pile and retaining wall, the present method is more streamlined and efficient, saving both human and material resources while improving the overall quality and aesthetics of the project. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a simplified flow chart of the present invention;

[0029] Figure 2 A top view of the structure of the retaining wall construction in the present invention;

[0030] Figure 3 for Figure 2 Enlarged view of part A;

[0031] Figure 4 A top view of the structure for anti-slide pile construction;

[0032] Figure 5 For the Figure 4 A three-dimensional cross-sectional view of the middle BB;

[0033] Figure 6 for Figure 5 Enlarged view of part C;

[0034] In the picture:

[0035] 1-retaining wall, 2-retaining wall segment 1, 3-retaining wall segment 2, 4-partition formwork 1, 5-partition formwork 2, 6-anti-slip pile concrete, 7-retaining wall formwork. DETAILED DESCRIPTION

[0036] The following is a further description of specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is intended to facilitate understanding of the present invention and does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0037] As shown in the accompanying drawings, a construction method for anti-slide piles includes the following steps:

[0038] Step 1: Construction Preparation

[0039] Confirm that technical information such as construction drawings and geological reports are complete.

[0040] Prepare the necessary mechanical equipment such as drilling rigs, concrete mixers, steel bar processing equipment, etc., and check their working status.

[0041] Clean up the construction site and ensure that there are no obstacles affecting construction.

[0042] Step 2: Measure and lay out

[0043] The positions of the piles are accurately marked out on site according to the design drawings; the positions of the piles are marked with objects such as wooden stakes or steel bars.

[0044] Step 3: Drilling and wall protection 1 construction

[0045] The drilling process begins with the use of segmented drilling and segmented wall protection methods. That is, after each section of drilling is completed, the wall protection 1 is immediately applied to the section of the hole to ensure that the hole wall is stable before continuing the drilling operation of the next section. Depending on the terrain conditions and construction organization design, the drilling can be done by mechanical drilling or manual digging.

[0046] The retaining wall 1 is made of reinforced concrete and is cast using a rectangular cross-section retaining wall formwork. The retaining wall 1 includes a retaining wall section 2 with a U-shaped cross-section on the road side (to be excavated), and a retaining wall section 3 (mountain side) that closes the open side of the retaining wall section 2. A partition formwork 4 is provided at the connection between the retaining wall sections 2 and 3.

[0047] Step 4: Hole cleaning and template separation

[0048] After drilling, the bottom of the hole is cleaned to remove sediment and ensure a clean bottom. The surface of the retaining wall segment 2 is also cleaned. A partition template 2 (5) is then fixed to the inner surface of the retaining wall segment 2. The partition template 2 (5) also has a U-shaped cross-section. The partition template 2 (5) is preferably made of waterproof board for easy assembly and demolding, and is fixed to the retaining wall 1 with nails or cement nails. The waterproof board ensures a smooth and flat exposed surface of the anti-slip piles. The partition template 1 (4) is preferably made of waterproof board for easy demolding, and is fixed to the rebar of the retaining wall segment 3 with wire. Obviously, the partition templates 1 (4) and 2 (5) can also be made of other commonly used materials, and their fixing method can also be replaced by other on-site connection methods.

[0049] Step 5: Fabrication and installation of steel cage

[0050] Prefabricate the steel cage on the ground according to the design requirements, ensuring that the size of the steel cage is accurate; after the steel cage is completed, use a crane to lift it into the hole and adjust the position to ensure it is centered;

[0051] Step 6: Pour anti-slide pile concrete 6

[0052] Pouring concrete to ensure that the concrete quality is uniform and dense, while controlling the slump of the concrete to avoid segregation; the concrete pouring is preferably performed by continuous pouring from the bottom of the hole upwards using a conduit method;

[0053] Step 7: Slope excavation

[0054] After the anti-slip pile concrete 6 reaches the demolition strength, the side of the slope facing the road is excavated. After excavation, the U-shaped retaining wall section 1 2, the partition template 1 4 and the partition template 2 5 are removed to obtain the anti-slip pile with a flat surface facing the road.

[0055] The present invention innovatively utilizes a partition formwork 1 4 and a partition formwork 2 5 to achieve complete separation between the retaining wall segment 1 2 on the roadside of the anti-slip pile and the main structure of the anti-slip pile (the anti-slip pile concrete 6). Specifically, this method effectively solves the various problems caused by the tight integration of the anti-slip pile and the retaining wall 1 in traditional processes by cleverly placing these two specially designed partition formworks between the anti-slip pile and its roadside retaining wall 1. The waterproof board of this invention has a large area, which can minimize the gap formed during the assembly of the formwork, thereby ensuring higher integrity of the anti-slip pile surface and better overall sensory quality. After the anti-slip pile is poured, the next key step is to excavate the soil on the roadside of the mountain. Subsequently, the pre-installed partition formwork 1 4, partition formwork 2 5, and retaining wall segment 1 2 are removed in sequence. After this series of carefully designed processing steps, the outward-facing side of the anti-slip pile can present an ideal smooth and regular surface effect. At the same time, this construction technology can effectively avoid problems such as landslides during mountain excavation.

[0056] In the present invention, the partition template 1 (4), the partition template 2 (5) and the retaining wall section 1 (2) can be removed by ground equipment, such as an excavator, so the removal method is both safe and efficient. In addition, the surface of the anti-slip pile does not need to be polished or modified, so there is no need to build scaffolding or use climbing equipment, thereby avoiding the safety hazards that may be caused by high-altitude operations.

[0057] This invention is a redesigned method for anti-slip reinforcement of landslide-prone mountains. Its concept is to first cast anti-slip piles before excavating the mountain, effectively preventing landslides during excavation. Furthermore, by using partition formwork 1 (4) and partition formwork 2 (5), the retaining wall section 1 (2), partition formwork 1 (4), and partition formwork 2 (5) can be quickly and efficiently removed. The removed anti-slip piles have a highly smooth surface, eliminating the need for polishing or external decorative materials. Furthermore, the smooth surface of the anti-slip piles can be directly painted, significantly reducing the workload and cost of surface treatment.

[0058] The adoption of the technical solution proposed in the present invention not only significantly reduces the workload of subsequent additional treatment of the exposed anti-slip pile surface, but also greatly reduces the related construction costs. Compared with the complex surface treatment process caused by the integrated molding of the anti-slip pile and the retaining wall 1 in the traditional process, the method of the present invention is more concise and efficient. It not only saves a lot of manpower and material resources, but also significantly improves the quality and aesthetics of the overall project. In addition, this improved method helps to simplify the construction process and improve work efficiency, so that the entire project can be completed more economically and quickly while ensuring high standards, providing a new solution for slope support projects.

[0059] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. A construction method for anti-slide piles, characterized in that It includes the following steps: Step 1. Construction preparation Clean the construction site to ensure that there are no obstacles affecting the construction; Step 2. Surveying and setting out Accurately set out the positions of each pile on the ground according to the design drawings; Step 3. Hole forming and retaining wall (1) construction Start hole forming. During the construction process, the method of segmental hole forming and segmental retaining wall is adopted. The retaining wall (1) is made of reinforced concrete. When pouring the retaining wall (1), a retaining wall template with a rectangular cross-section is used for pouring; the retaining wall (1) includes a retaining wall section 1 (2) with a U-shaped cross-section on the side adjacent to the road, and a retaining wall section 2 (3) for closing the opening side of the retaining wall section 1 (2). A partition template 1 (4) is provided at the connection between the retaining wall section 1 (2) and the retaining wall section 2 (3); Step 4. Hole cleaning and construction of separating template 2 After hole forming, clean the bottom of the hole, remove the sediment, ensure that the bottom of the hole is clean, and clean the surface of the retaining wall section 1 (2); then fix the separating template 2 (5) on the inner surface of the retaining wall section 1 (2). The cross-section of the separating template 2 (5) is also U-shaped; Step 5. Fabrication and installation of steel reinforcement cage Precast the steel reinforcement cage on the ground according to the design requirements to ensure that the size of the steel reinforcement cage is accurate; after the steel reinforcement cage is fabricated, use a crane to hoist it into the hole and adjust its position to ensure it is centered; Step 6. Pouring the anti-slide pile concrete (6) Pour the concrete to ensure that the concrete quality is uniform and dense, and at the same time control the slump of the concrete to avoid segregation; Step 7. Slope excavation After the anti-slide pile concrete (6) reaches the removal strength, excavate the side adjacent to the road of the slope. After excavation, remove the U-shaped retaining wall section 1 (2), partition template 1 (4) and separating template 2 (5) to obtain an anti-slide pile with a flat surface on the side adjacent to the road.

2. The construction method of anti-slide piles according to claim 1, characterized in that: In the said Step 2, the positions of the pile are marked with wooden stakes or steel bars.

3. The construction method of anti-slide piles according to claim 1, characterized in that: In the said Step 3, the hole forming is carried out by mechanical drilling or manual excavation.

4. The construction method of anti-slide piles according to claim 1, characterized in that: In the said Step 4, the separating template 2 (5) is made of waterproof board and is fixedly connected to the retaining wall (1) by shooting nails or cement nails.

5. The construction method of anti-slide piles according to claim 1, characterized in that: In the said Step 4, the partition template 1 (4) is made of waterproof board and is fixedly connected to the steel bars of the retaining wall section 2 (3) by iron wires.

6. The construction method of anti-slide piles according to claim 1, characterized in that: In the said Step 6, the concrete is poured continuously from the bottom of the hole upwards by the conduit method.

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