Steel blade angle structure of vertical open caisson

Abstract

The steel blade angle structure of the vertical open caisson comprises an upper steel blade angle and a lower steel blade angle, the upper steel blade angle is defined by an upper top plate, an upper vertical plate, a first upper inclined lower plate and a second upper inclined lower plate, and the lower steel blade angle is defined by a lower inclined upper plate, a lower inclined lower plate, a lower bottom plate and a lower vertical plate; the second upper inclined lower plate and the lower inclined upper plate are connected through a fixing plate and form a steel strand channel allowing a steel strand to pass through, an arc-shaped guide plate is installed on the second upper inclined lower plate, a through hole is formed in the fixing plate, an anchor plate is fixed to the through hole of the fixing plate, a plurality of steel strand hole channels are formed in the anchor plate, and the steel strand channel is communicated with the arc-shaped guide plate. The ends, close to the through holes of the fixing plate, of the steel strand hole channels are circular holes, and the ends, away from the through holes of the fixing plate, are wedge-shaped holes. The steel blade angle structure has the advantages that one end of the steel strand passes through the steel strand channel formed by the upper steel blade angle and the lower steel blade angle and is anchored on the anchor plate in the steel blade angle structure, so that safe sinking of the vertical shaft can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft construction, in particular to a steel blade angle structure of a vertical open caisson. Background Technique

[0002] A shaft is a vertically walled well-shaped pipeline, which is actually a collapse funnel. It is square, long strip or irregular circular in plan contour. The shaft wall is steep and nearly vertical. Shafts are widely used in water intake, water diversion, ventilation, slag chute, and air supply in water conservancy and hydropower projects. Shaft construction has the characteristics of small floor area and less interference with surrounding construction. However, the construction space of shafts is small, the construction period is long, there are many climbing and edge operations, and the traffic is inconvenient, resulting in prominent safety risks in shaft construction. Shafts can be classified according to their diameter, cross-sectional shape and depth, etc.

[0003] In order to reduce the sinking resistance, the lower end of the shaft wall is usually made into a blade shape, and this blade-shaped structure is called "blade foot". In the new shaft construction technology, in order to ensure the controllability of the shaft sinking, steel strands are usually used to connect the blade foot of the shaft to a large-tonnage piston oil cylinder placed on the ground, and then the piston oil cylinder drives the steel strands to move to achieve the purpose of controllable sinking of the shaft. In the whole process, the steel strands need to bear the weight of the shaft, so improving the reliability of the action of the steel strands is a key requirement in shaft operation.

[0004] Therefore, a steel blade angle structure of a vertical open caisson that can solve the above problems is needed. Summary of the Invention

[0005] The purpose of the utility model is to provide a steel blade angle structure of a vertical open caisson according to the deficiencies of the above-mentioned prior art. It is composed of an upper steel blade angle and a lower steel blade angle. One end of the steel strand passes through the steel strand channel formed by the upper steel blade angle and the lower steel blade angle and is anchored on the anchor plate inside the steel blade angle structure, which can ensure the safe sinking of the shaft.

[0006] The purpose of the utility model is realized by the following technical solutions:

[0007] A steel blade angle structure of a vertical open caisson includes an upper steel blade angle and a lower steel blade angle. The upper steel blade angle is enclosed by an upper top plate, an upper vertical plate, an upper first inclined lower plate and an upper second inclined lower plate. The lower steel blade angle is enclosed by a lower inclined upper plate, a lower inclined lower plate, a lower bottom plate and a lower vertical plate. The upper second inclined lower plate and the lower inclined upper plate are connected by a fixing plate and form a steel strand channel allowing the steel strand to pass through. An arc-shaped guide plate is installed on the upper second inclined lower plate. The fixing plate is provided with a through hole, and an anchor plate is fixed at the through hole of the fixing plate. The anchor plate is provided with a plurality of steel strand holes. One end of the steel strand hole close to the through hole of the fixing plate is a circular hole, and the end far from the through hole of the fixing plate is a wedge-shaped hole.

[0008] The size and shape of the wedge-shaped holes respectively match the size and shape of the wedge-shaped fixing members, and the wedge-shaped fixing members are welded to the steel strands.

[0009] The upper second obliquely downward plate and the lower obliquely upward plate are parallel to each other, and the upper first obliquely downward plate and the lower obliquely downward plate are in the same plane.

[0010] The fixing plate is fixedly connected to the upper second obliquely downward plate and the lower obliquely upward plate respectively through the reinforcing ribs.

[0011] Self-compacting concrete is poured into both the upper steel blade angle and the lower steel blade angle. Pouring ventilation holes are formed in the upper top plate, and an inclined plate is connected between the upper vertical plate and the upper second obliquely downward plate.

[0012] The advantages of the utility model are as follows: It is composed of an upper steel blade angle and a lower steel blade angle. One end of the steel strand passes through the steel strand channel formed by the upper steel blade angle and the lower steel blade angle and is anchored on the anchor plate inside the steel blade angle structure, which can ensure the safe sinking of the shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a sectional view of the steel blade angle structure of the utility model;

[0014] Figure 2 is a schematic structural view of the wedge-shaped fixing member of the utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The features of the utility model and other related features will be further described in detail below through embodiments with reference to the drawings for the understanding of those skilled in the same industry:

[0016] As Figures 1 - 2 shown, the marks in the figure are respectively represented as:

[0017] Upper top plate 1, upper vertical plate 2, upper first obliquely downward plate 3, upper second obliquely downward plate 4, arc-shaped guide plate 5, inclined plate 6, pouring ventilation hole 7, self-compacting concrete 8, lower obliquely upward plate 9, lower obliquely downward plate 10, lower bottom plate 11, lower vertical plate 12, steel strand channel 13, fixing plate 14, through hole 15, anchor plate 16, steel strand hole channel 17, wedge-shaped fixing member 18, reinforcing rib 19.

[0018] Embodiment: As Figures 1 - 2As shown in the figure, this embodiment relates to a steel blade angle structure of a vertical caisson, which mainly includes an upper steel blade angle and a lower steel blade angle. The upper steel blade angle is enclosed by an upper top plate 1, an upper vertical plate 2, an upper first inclined lower plate 3, and an upper second inclined lower plate 4. The lower steel blade angle is enclosed by a lower inclined upper plate 9, a lower inclined lower plate 10, a lower bottom plate 11, and a lower vertical plate 12. An inclined plate 6 is connected between the upper vertical plate 2 and the upper second inclined lower plate 4. The upper second inclined lower plate 4 is parallel to the lower inclined upper plate 9. The upper first inclined lower plate 3 and the lower inclined lower plate 10 are in the same plane. Self-compacting concrete 8 is poured into both the upper steel blade angle and the lower steel blade angle to improve the overall strength of the upper steel blade angle and the lower steel blade angle. Pouring ventilation holes 7 are provided on the upper top plate 1, and the pouring ventilation holes 7 can discharge air during the pouring process of the self-compacting concrete 8 to improve the pouring quality.

[0019] As Figures 1 - 2 shown, a fixing plate 14 is connected between the upper second inclined lower plate 4 and the lower inclined upper plate 9 and forms a steel strand channel 13 allowing the steel strand to pass through. The fixing plate 14 is fixedly connected to the upper second inclined lower plate 4 and the lower inclined upper plate 9 respectively through reinforcing ribs 19. The reinforcing ribs 19 play a role in strengthening the connection. And an arc-shaped guide plate 5 is installed on the upper second inclined lower plate 4, and the arc-shaped guide plate 5 is used for guiding the steel strand. The fixing plate 14 is provided with a through hole 15, and the through hole 15 of the fixing plate 14 allows the steel strand to pass through. An anchor plate 16 is fixed at the through hole 15 of the fixing plate 14. A plurality of steel strand holes 17 are provided on the anchor plate 16. One end of the steel strand hole 17 close to the through hole 15 of the fixing plate 14 is a circular hole, and the end far from the through hole 15 of the fixing plate 14 is a wedge-shaped hole. Among them, the size and shape of the wedge-shaped hole respectively match the size and shape of the wedge-shaped fixing member 18. The wedge-shaped structure of the wedge-shaped fixing member 18 is convenient for installation into the wedge-shaped hole of the steel strand hole 17, and the wedge-shaped fixing member 18 is welded to the steel strand.

[0020] In this embodiment, first, the steel strand passes through the steel strand channel 13 and the through hole 15 of the fixing plate 14 in sequence, then penetrates into the steel strand hole 17 on the anchor plate 16, and then the wedge-shaped fixing member 18 is welded to the steel strand and wedged into the steel strand hole 17. Finally, an upward force is applied to the steel strand so that the anchor plate 16 is closely attached to the fixing plate 14, and the wedge-shaped fixing member 18 is firmly wedged into the steel strand hole 17.

[0021] The beneficial technical effects of this embodiment are as follows: It is composed of an upper steel blade angle and a lower steel blade angle. One end of the steel strand passes through the steel strand channel formed by the upper steel blade angle and the lower steel blade angle and is anchored on the anchor plate inside the steel blade angle structure, which can ensure the safe sinking of the shaft.

[0022] Although the above embodiments have described in detail the concept and embodiments of the object of the present utility model with reference to the accompanying drawings, those of ordinary skill in the art can recognize that various improvements and transformations can still be made to the present utility model without departing from the scope defined by the claims, so they will not be elaborated here one by one.

Claims

1. A steel cutting edge structure for a vertical open caisson, characterized in that: It includes an upper steel blade angle and a lower steel blade angle. The upper steel blade angle is enclosed by an upper top plate, an upper vertical plate, an upper first obliquely downward plate, and an upper second obliquely downward plate. The lower steel blade angle is enclosed by a lower obliquely upward plate, a lower obliquely downward plate, a lower bottom plate, and a lower vertical plate. A fixing plate is connected between the upper second obliquely downward plate and the lower obliquely upward plate to form a steel strand channel allowing the steel strand to pass through. An arc-shaped guide plate is installed on the upper second obliquely downward plate. The fixing plate is provided with a through hole, and an anchor plate is fixed at the through hole of the fixing plate. A plurality of steel strand holes are provided on the anchor plate. One end of the steel strand hole close to the through hole of the fixing plate is a circular hole, and the end far from the through hole of the fixing plate is a wedge-shaped hole.

2. The steel cutting edge structure of a vertical open caisson according to claim 1, characterized in that: The size and shape of the wedge-shaped hole respectively match the size and shape of the wedge-shaped fixing piece, and the wedge-shaped fixing piece is welded to the steel strand.

3. The steel blade angle structure of a vertical open caisson according to claim 1, characterized in that: The upper second obliquely downward plate and the lower obliquely upward plate are parallel to each other, and the upper first obliquely downward plate and the lower obliquely downward plate are in the same plane.

4. The steel cutting edge structure of a vertical open caisson according to claim 1, characterized in that: The fixing plate is fixedly connected to the upper second obliquely downward plate and the lower obliquely upward plate respectively through reinforcing ribs.

5. The steel cutting edge structure of a vertical caisson according to claim 1, characterized in that: Self-compacting concrete is poured into both the upper steel blade angle and the lower steel blade angle. Pouring vent holes are opened on the upper top plate, and the upper vertical plate and the upper second obliquely downward plate are connected by an inclined plate.

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