Fabricated slide-resistant pile steel retaining wall structure

Abstract

The utility model relates to an assembly type slide-resistant pile steel retaining wall structure which is formed by vertically connecting a plurality of sections of prefabricated sub retaining walls, and is characterized in that each section of sub retaining wall is of a rectangular structure formed by connecting four steel plates; the upper and lower adjacent sub protection walls are connected together through the anchor bolt holes and anchor bolts in an embedded manner; two I-shaped steel beams are welded on each side of the inner part of each section of sub protection wall at equal intervals in the height direction; twisted steel bars are transversely welded between the steel plate and the I-shaped steel beam at equal intervals in an oblique angle manner. The structure is reliable, construction is easy, the overall structural rigidity and stability are improved while the budget of the I-shaped steel beam is reduced, damage to a protection wall caused by in-hole soil pressure changes which are influenced by external factors is effectively avoided, and the hole collapse phenomenon is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-sliding pile construction, in particular to an assembled anti-sliding pile steel wall protection structure. Background Art

[0002] In landslide prevention and control projects, arranging anti-slide piles is an effective means of preventing and controlling landslides. In order to ensure the safety of anti-slide piles during construction, some wall reinforcement measures are often required. For example, application No. CN201920955545.6 proposes an anti-slide pile wall protection structure, including a multi-layer wall protection structure stacked up and down, each layer of the wall protection structure is a rectangular structure composed of four guard plates connected to each other, and each guard plate includes a rectangular plate body.

[0003] However, in some large-scale landslide areas with severe geological conditions, the soil layer has poor integrity, the sliding body has a large volume, the landslide thrust is extremely large, and there is an aquifer in the landslide body. The prefabricated retaining wall and the surrounding soil layer cannot bear the force of each other well. When the cross-sectional size of the retaining wall is large, the landslide thrust in the middle of the long side of the retaining wall is large, resulting in a large bending moment, and the long side of the retaining wall board will bend and sag, thus affecting the quality and progress of the control project. Therefore, in response to the occurrence of such phenomena in landslide control, a structure that improves the stability of the retaining wall itself is urgently needed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an assembled anti-slip pile steel wall protection structure which improves its own stability.

[0005] In order to solve the above problems, the utility model describes an assembled anti-slip pile steel guard wall structure, which is formed by connecting multiple sections of prefabricated sub-guard walls up and down, and is characterized in that: each section of the sub-guard wall is a rectangular structure formed by connecting four steel plates; the upper and lower adjacent sub-guard walls are connected together by anchor holes and anchor bolts; two I-beams are welded on each side of the interior of each section of the sub-guard wall at equal intervals in the height direction; threaded steel bars are welded between the steel plates and the I-beams at equal transverse intervals.

[0006] The anchor hole interface is located at the intersection of the lower end of the upper section of the sub-guard wall and the upper end of the adjacent sub-guard wall of the next section; the anchor is inserted into the anchor hole and passes through the inner I-beam and the outer steel plate.

[0007] The anchor holes and the anchor bolts are respectively arranged circumferentially along the sub-protection wall.

[0008] The steel plate and the I-beam are both provided with reserved holes for the anchor bolts to pass through.

[0009] The threaded steel bar is welded on the inner side of the steel plate, and the threaded steel bar is welded to the upper and lower sides and the interval of the I-beam in a triangular shape to form a combined structure.

[0010] The threaded steel bar is installed at an oblique angle of 45° with the I-beam and is arranged in a triangle with adjacent threaded steel bars.

[0011] The height of each section of the sub-protection wall shall not exceed 2m.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. In the utility model, threaded steel bars are welded between the steel plate and the I-beam at equal horizontal intervals. The threaded steel bars can effectively share the bending resistance of the I-beam, while reducing the budget of the I-beam, increasing the rigidity and stability of the overall structure, thereby effectively avoiding the damage to the retaining wall caused by the change of soil pressure in the hole due to external factors, and avoiding the occurrence of hole collapse.

[0014] 2. The utility model can be prefabricated in advance and spliced ​​on site, without the need for complex processes such as tying steel bars and making templates. Therefore, the construction time and labor costs can be reduced. The later dismantling is simple and fast, and the wall protection can be recycled for secondary use, effectively saving resources.

[0015] 3. The utility model has a reliable structure and is easy to construct. It can be applied to complex construction environments and can also be used as a concrete anti-slip pile wall protection template. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0017] Figure 1 It is a cross-sectional schematic diagram of the utility model.

[0018] Figure 2 This is a plan view of the long side connection method in the utility model.

[0019] Figure 3 This is a plan view of the short side connection method in the utility model.

[0020] Figure 4 It is a schematic diagram of the connection side in the utility model.

[0021] Figure 5 It is a side view of a single section of wall protection in the utility model.

[0022] In the figure: 1—steel plate; 2—I-beam; 3—anchor hole; 4—anchor; 5—threaded steel bar. DETAILED DESCRIPTION

[0023] like Figures 1 to 5As shown, an assembled anti-sliding pile steel retaining wall structure is formed by connecting multiple sections of prefabricated sub-retaining walls up and down. Each section of the sub-retaining wall is a rectangular structure formed by connecting four steel plates 1; the upper and lower adjacent sub-retaining walls are connected together through anchor holes 3 and anchor bolts 4; two I-beams 2 are welded at equal intervals in the height direction on each side of each section of the sub-retaining wall to increase rigidity; threaded steel bars 5 are welded at equal intervals between the steel plates 1 and the I-beams 2 at bevel angles in the transverse direction.

[0024] Among them: the interface of the anchor hole 3 is located at the intersection of the lower end of the previous section of the sub-guard wall and the upper end of the next section of the adjacent sub-guard wall; the anchor 4 is inserted into the anchor hole 3 and penetrates the inner I-beam 2 and the outer steel plate 1.

[0025] The anchor holes 3 and the anchor bolts 4 are respectively arranged along the circumferential direction of the sub-protection wall.

[0026] The steel plate 1 and the I-beam 2 are both provided with reserved holes for the anchor bolts 4 to pass through.

[0027] The inner side of the steel plate 1 is welded with a threaded steel bar 5, which is welded to the upper and lower sides and the interval of the I-beam 2 in a triangular shape to form a combined structure, so as to increase the rigidity and bending resistance of the weak part of the steel plate 1, thereby increasing the overall stability.

[0028] The threaded steel bars 5 are installed at a 45° angle to the I-beam 2 and arranged in a triangle with adjacent threaded steel bars 5 to provide additional support and stability to prevent deformation or failure of the steel plates 1 on the upper and lower sides of the I-beam 2 and in the intervals.

[0029] The height of each section of the retaining wall shall not exceed 2m.

[0030] When in use, the height and size of each section of the sub-wall are calculated and determined according to the requirements of the project site. Two I-beams 2 are welded at equal height intervals on the inside of each section of the sub-wall. Each I-beam 2 is connected in a ring along the inside of the sub-wall and welded to the outer steel plate 1 to form a rectangular structure. The combined structure of the I-beam 2 and the threaded steel bar 5 and the steel plate 1 acts on the hole wall to achieve higher rigidity and stability. The threaded steel bar 5 is welded obliquely on the inside of the steel plate 1. One end of the threaded steel bar 5 is welded to the I-beam 2, and the other end is welded to the upper end of the adjacent next section of the threaded steel bar 5. The welding is distributed evenly on the long and short sides of the steel plate 1 in turn to make up for the rigidity of the weak parts of each side of the steel plate 1, give full play to the support function, and thus achieve the purpose of use. Anchor holes 3 are reserved at the lower part of the uppermost sub-wall, and anchor holes 3 of the same size are reserved at the same position on the upper and lower parts of the adjacent next section of the sub-wall. After the two sections of the sub-wall are stacked together, the anchor bolts 4 are inserted into the pre-anchor hole 3 position to fix them.

[0031] Working principle:

[0032] After the first section of the anti-slip pile retaining wall is completed, it is first hoisted into the hole. After it is lowered to a specified position, the second section of the sub-retaining wall is stacked on the first section of the sub-retaining wall in the same way. The two sub-retaining walls are then manually connected through preset anchor holes 3 and anchor holes 4. The two sections of the sub-retaining walls are connected as a whole through the deadweight of the retaining walls and the fixation of the anchor holes 3. The installation of the third, fourth and other sub-retaining walls is completed in this way. After all the sub-retaining walls are installed, they have played a supporting role in the hole, and the corresponding construction of the anti-slip piles can be completed, which greatly saves construction time and cost while ensuring quality and safety.

Claims

1. An assembled anti-slip pile steel retaining wall structure, which is formed by connecting multiple prefabricated sub-retaining walls up and down, and is characterized by: Each section of the sub-protective wall is a rectangular structure formed by connecting four steel plates (1); the upper and lower adjacent sub-protective walls are connected together by means of anchor holes (3) and anchor bolts (4); two I-beams (2) are welded at equal intervals in the height direction on each side of the interior of each section of the sub-protective wall; and threaded steel bars (5) are welded at equal intervals in the transverse direction between the steel plates (1) and the I-beams (2).

2. The assembled anti-sliding pile steel wall protection structure according to claim 1, characterized in that: The interface of the anchor bolt hole (3) is located at the intersection of the lower end of the upper section of the sub-protection wall and the upper end of the next section of the adjacent sub-protection wall; the anchor bolt (4) is inserted into the anchor bolt hole (3) and passes through the inner I-beam (2) and the outer steel plate (1).

3. The assembled anti-sliding pile steel wall protection structure according to claim 2, characterized in that: The anchor bolt holes (3) and the anchor bolts (4) are respectively arranged in a circumferential direction along the sub-protection wall.

4. The assembled anti-sliding pile steel wall protection structure according to claim 1, characterized in that: The steel plate (1) and the I-beam (2) are both provided with reserved holes for the anchor bolts (4) to pass through.

5. The assembled anti-sliding pile steel wall protection structure according to claim 1, characterized in that: The threaded steel bar (5) is welded to the inner side of the steel plate (1), and the threaded steel bar (5) is welded to the upper and lower sides and the interval of the I-beam (2) in a triangular shape to form a combined structure.

6. The assembled anti-sliding pile steel wall protection structure according to claim 5, characterized in that: The threaded steel bars (5) are installed at an oblique angle of 45° to the I-beam (2), and are arranged in a triangle with adjacent threaded steel bars (5).

7. The assembled anti-sliding pile steel wall protection structure according to claim 1, characterized in that: The height of each section of the sub-protection wall shall not exceed 2m.

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