Repair structure of side slope wedge-shaped body sliding notch

Abstract

The utility model relates to the technical field of slope treatment, and discloses a slope wedge-shaped body sliding notch repairing structure which comprises steel pipe piles, a reinforcing mesh and a sieve plate, a plurality of steel pipe piles located on the same plane are arranged perpendicular to a slope sliding notch soil body, and anchoring sections of the steel pipe piles are inserted into pile holes of the slope sliding notch soil body. The reinforcing mesh and the sieve plate are fixed on the steel pipe pile; an improved soil filling layer and a grouting layer are sequentially arranged on the upper portion of the steel pipe pile from bottom to top, and a concrete filling layer is arranged on the lower portion of the steel pipe pile. According to the repairing structure, the steel pipe pile is matched with the reinforcing mesh and the sieve plate to be inserted into the side slope sliding notch soil body, the improved soil filling layer and the grouting layer are arranged on the upper portion of the steel pipe pile, the concrete filling layer is arranged on the lower portion of the steel pipe pile to repair the notch of the side slope sliding soil body, and the stability of the slope body and the flatness of the slope surface are effectively improved; and favorable conditions are provided for laying of the sash beams.

Description

Technical Field

[0001] The utility model relates to the technical field of slope management, in particular to a repair structure for a sliding gap of a wedge-shaped body on a slope. Background Art

[0002] To improve the slope's tendency to slide and collapse and enhance its stability, protective measures such as lattice beams are often used to reinforce the slope. However, wedge-shaped sliding gaps may occur during the laying of lattice beams in actual projects. If not promptly addressed, the lattice beams cannot be laid properly and the slope's stability will be significantly reduced. In severe cases, the slope may collapse, leading to safety accidents. Wedge failure is a major form of slope failure that can easily result in wedge-shaped sliding gaps. Large gaps can lead to slope collapse, affecting slope safety and stability as well as the implementation of reinforcement and management projects. However, there is currently no effective repair method specifically for slopes with wedge-shaped sliding gaps, making it impossible to effectively lay lattice beams. Utility Model Content

[0003] The utility model provides a repairing structure for a sliding notch of a wedge-shaped body on a side slope, which is used for repairing the sliding notch of a wedge-shaped body on a side slope to improve the laying conditions of a lattice beam.

[0004] A repair structure for a wedge-shaped sliding notch in a slope comprises: steel pipe piles, a steel mesh, and a screen plate. Multiple steel pipe piles located on the same plane are arranged perpendicular to the soil in the sliding notch of the slope. The anchoring sections of the steel pipe piles are inserted into the pile holes in the soil in the sliding notch of the slope. The steel mesh and the screen plate are fixed to the steel pipe piles.

[0005] The upper part of the steel pipe pile is provided with an improved soil filling layer and a grouting layer in sequence from bottom to top, and the lower part of the steel pipe pile is provided with a concrete filling layer.

[0006] Furthermore, the steel pipe pile is divided into an anchoring section and an exposed section, and the length ratio of the anchoring section to the exposed section is 3:1.

[0007] Furthermore, the distance between adjacent steel pipe piles is 1.2m to 2m.

[0008] Furthermore, the length of the steel pipe pile is 40 times its diameter.

[0009] Furthermore, the steel mesh is made of steel bars welded together vertically and horizontally, and the mesh holes are square holes with a side length of 250 mm.

[0010] Furthermore, the sieve plate is a steel plate with circular holes, and the diameter of the circular holes is 0.5 mm.

[0011] Furthermore, the improved soil filling layer is made by adding fiber and lime to local filling soil, and the fiber and lime content is controlled within 0.2% and 6.0% of the filling soil respectively.

[0012] The utility model has the following beneficial effects: the repair structure of the utility model adopts steel pipe piles in combination with steel mesh and sieve plates to be inserted into the soil body of the sliding gap of the slope, and an improved soil filling layer and a grouting layer are arranged on the upper part of the steel pipe piles, and a concrete filling layer is arranged under the steel pipe piles to repair the gap of the sliding soil body of the slope, which effectively increases the stability of the slope and the flatness of the slope surface, and provides favorable conditions for the laying of frame beams. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic elevation diagram of the repair structure using the utility model;

[0014] Figure 2 This is a positional relationship diagram of the steel pipe pile and the soil body with a slope sliding gap in the present utility model;

[0015] Figure 3 A side view schematic diagram of the repair structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the combined arrangement of steel pipe piles, steel mesh and screen plates in the present invention.

[0017] In the figure: 1-steel pipe pile; 101-anchoring section; 102-exposed section; 2-steel mesh; 3-sieve plate; 4-slope sliding gap soil; 5-pile hole; 6-improved soil filling layer; 7-grouting layer; 8-concrete filling layer. DETAILED DESCRIPTION

[0018] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0019] refer to Figures 1 to 4 The utility model provides a repair structure for a sliding gap of a wedge-shaped body on a slope, comprising: a steel pipe pile 1, a steel mesh 2 and a screen plate 3.

[0020] Multiple steel pipe piles 1 are arranged on the same plane, perpendicular to the slope slip notch 4. The steel pipe piles 1 are divided into an anchoring section 101 and an exposed section 102. The anchoring section 101 is inserted into the slope slip notch 4. A pile hole 5 is defined in the center of the slope slip notch 4. The anchoring section 101 is inserted into the pile hole 5 in the slope slip notch 4. The exposed section 102 is located outside the side of the slope slip notch 4. The steel pipe piles 1 are made of Q345 steel.

[0021] The steel mesh 2 and the sieve plate 3 are laid on the anchoring section 101 and the exposed section 102, and then fixed with a welding machine and arranged on the slope sliding gap soil 4; wherein, the steel mesh 2 is made of steel bars welded vertically and horizontally, and the sieve plate 3 is a steel plate with round holes.

[0022] Preferably, the mesh of the steel mesh 2 is a square hole with a side length of 250 mm; the circular holes on the sieve plate 3 are evenly distributed and have a diameter of 0.5 mm.

[0023] Preferably, the length ratio of the anchoring section 101 to the exposed section 102 is 3:1. For example, if the length of the anchoring section 101 is 6 m, the length of the exposed section 102 is 2 m.

[0024] Preferably, the distance between adjacent steel pipe piles 1 is 1.2 m to 2 m, and in this embodiment is 1.5 m.

[0025] Preferably, the length of the steel pipe pile 1 is 40 times its diameter. For example, if the diameter of the steel pipe pile 1 is 20 cm, the total length is 8 m.

[0026] The upper portion of the steel pipe pile 1 is provided with an improved soil fill layer 6 and a grouting layer 7, from bottom to top, and a concrete fill layer 8 is provided at the lower portion of the steel pipe pile 1. The improved soil fill layer 6 is made by adding fiber and lime to local fill soil, with the fiber and lime content controlled within 0.2% and 6.0% of the fill soil, respectively.

[0027] The grouting layer 7 is cast with cement mortar, and its strength and thickness depend on the inclination of the slope sliding notch soil body 4.

[0028] Since the steel pipe piles 1, the steel mesh 2 and the sieve plate 3 form an integral structure and are inserted into the interior of the soil body 4 in the slope sliding gap, the slope body can be effectively stabilized.

[0029] Steps for repairing a structure using this utility model:

[0030] (1) First clean the surface of the wedge sliding notch and remove any loose materials.

[0031] (2) According to the size of the sliding gap of the wedge body, a row of pile holes 5 are opened in the middle of the gap.

[0032] (3) Insert the steel pipe pile 1 into the pile hole 5, and use cement mortar to fix the internal anchoring section 101 and the soil of the wedge sliding gap. During this process, the steel pipe pile 1 is lifted by one-point binding. After it is lifted to the outside of the pile hole 5, the pile is inserted. The steel pipe pile 1 is aligned with the pile hole 5 and vertically. Due to the deadweight of the pile body and the pile hammer placed on the pile top, the steel pipe pile 1 will sink into the soil. After it stabilizes, the natural ground piling method is used to hammer the steel pipe pile 1 to deepen its insertion. After the steel pipe pile 1 is stable, M30 cement mortar is used to connect the internal anchoring section 101 with the soil 4 of the slope sliding gap.

[0033] (4) Fix the steel mesh 2 and the sieve plate 3 to the steel pipe pile 1 by welding, so that the steel pipe pile 1, the steel mesh 2 and the sieve plate 3 form a whole.

[0034] (5) Clean the loose soil layer on the surface of the gap above the steel pipe pile 1 to fully compact the base and level the surface. According to the on-site construction conditions, in order to ensure construction safety and quality, backfill in layers parallel to the slope to form an improved soil filling layer 6. The filling starts from the lowest point and is spread, rolled, and compacted in layers along the entire width from bottom to top. The thickness of each layer is 30 cm. It is rolled and compacted 4-5 times. After rolling and compacting one layer, the next layer of filling is carried out until the filling layer reaches the predetermined height. When the surface of the soil layer is too dry, sprinkle water to moisten it and continue backfilling to ensure that the improved soil filling layer 6 is well bonded with the base layer.

[0035] (6) After the improved soil filling layer 6 is completed, a single row of grouting holes with a diameter of 60 mm, a spacing of 3 m between grouting holes, and a hole depth of 1 m are arranged in the upper layer with a reserved area of ​​1 m parallel to the slope. Grouting pipes are placed in the grouting holes, and the upper 0.5 m of the grouting holes are sealed. Then, pressure grouting is performed to reinforce the improved soil filling layer 6.

[0036] (7) The lower notch of the steel pipe pile 1 is first roughened and the surface soil is cleaned to increase the friction between the surface soil of the sliding notch of the lower wedge and the concrete filling layer 8, thereby reducing the occurrence of hollowing, cracking, and falling off. Subsequently, concrete is poured to form an integrated overall structure of the soil, steel pipe pile 1, improved soil filling layer 6, concrete filling layer 8, and grouting layer 7.

[0037] The above description is merely a preferred embodiment of the present invention and does not represent all possible forms of the present invention. The scope of protection of the present invention is not limited to such specific descriptions and embodiments. Various other modifications and improvements based on the technical teachings disclosed in the present invention without departing from the essence of the present invention are still within the scope of protection of the present invention.

Claims

1. A repair structure for a wedge-shaped sliding notch on a slope, characterized in that: include: A steel pipe pile (1), a steel mesh (2) and a sieve plate (3), wherein a plurality of the steel pipe piles (1) located on the same plane are arranged perpendicular to a slope sliding notch soil body (4), an anchoring section (101) of the steel pipe pile (1) is inserted into a pile hole (5) of the slope sliding notch soil body (4), and the steel mesh (2) and the sieve plate (3) are fixed on the steel pipe pile (1); The upper part of the steel pipe pile (1) is provided with an improved soil filling layer (6) and a grouting layer (7) in sequence from bottom to top, and the lower part of the steel pipe pile (1) is provided with a concrete filling layer (8).

2. The repair structure for a wedge-shaped sliding notch on a slope according to claim 1, characterized in that: The steel pipe pile (1) is divided into an anchoring section (101) and an exposed section (102), and the length ratio of the anchoring section (101) to the exposed section (102) is 3:

1.

3. The repair structure for a wedge-shaped sliding notch on a slope according to claim 1, characterized in that: The distance between adjacent steel pipe piles (1) is 1.2m-2m.

4. The repair structure for a wedge-shaped sliding notch on a slope according to claim 1, characterized in that: The length of the steel pipe pile (1) is 40 times its diameter.

5. The repair structure for a wedge-shaped sliding notch on a slope according to claim 1, characterized in that: The steel mesh (2) is made of steel bars welded together vertically and horizontally, and the mesh holes are square holes with a side length of 250 mm.

6. The repair structure for a wedge-shaped sliding notch on a slope according to claim 1, characterized in that: The sieve plate (3) is a steel plate with a circular hole, and the diameter of the circular hole is 0.5 mm.

Images