Steel plate-concrete underground combined structure wall

Abstract

The utility model belongs to the technical field of building prefabricated parts, and particularly relates to a steel plate-concrete underground combined structure wall which comprises a steel plate and a concrete part which are fixed side by side, a plurality of steel pipes are fixed to the connecting position of the steel plate and the concrete part at intervals, and elastic parts and underground nails are sequentially arranged in the steel pipes from top to bottom. The upper end of the elastic piece is fixedly connected with the upper edge of the steel pipe, the upper ends of the ground-submerging nails are flat and fixedly connected to the lower end of the elastic piece, the lower ends of the ground-submerging nails extend in the axial direction of the steel pipe and are pointed ends, traction ropes are fixed to the upper surfaces of the ground-submerging nails, and the upper ends of the traction ropes extend upwards out of the corresponding steel pipe and are fixedly connected to the upper edge of the steel plate. The upper surface of the steel pipe is fixedly provided with flange rings through which corresponding pulling ropes penetrate, and the lower surfaces of the flange rings are fixedly connected to the upper ends of elastic pieces. A plurality of extending underground nails partially penetrate into a soil layer, so that the connecting area with the soil layer is increased, and the ground gripping effect of a continuous wall structure in an underground groove is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building prefabricated parts, and specifically relates to a steel plate-concrete underground combined structure wall. Background Art

[0002] An underground continuous wall is a foundation project that uses a trenching machine on the ground to dig a long and narrow deep trench along the peripheral axis of the deep excavation project under the condition of mud wall protection. After the trench is cleared, a steel cage is hung in the trench, and then underwater concrete is poured using the conduit method to form a unit trench section. This process is carried out section by section to build a continuous reinforced concrete wall underground.

[0003] Among them, steel-concrete composite structures have the advantages of high rigidity, good seismic, vibration and fatigue resistance, high safety, relatively clear stress performance, simple construction and short construction period, and high economic benefits. Therefore, they have huge advantages in industrial plants and civil buildings (especially multi-story buildings) and are increasingly widely used.

[0004] After the existing continuous wall is prefabricated, it is placed in a constructed groove and the inner wall of the groove is adhered to the steel plate. However, the surface of the steel plate is relatively smooth and needs to be sprayed with an anti-rust coating. The connection area with the soil layer is small, resulting in the underground continuous wall structure having an unclear grip effect. For this reason, we propose a steel plate-concrete underground composite structural wall. Utility Model Content

[0005] The purpose of this utility model is to provide a steel plate-concrete underground composite structural wall, which can extend a number of submerged nails to penetrate the soil layer, increase the connection area with the soil layer, and improve the grip effect of the continuous wall structure in the underground trench.

[0006] The technical solutions adopted in this application are as follows:

[0007] A steel plate-concrete underground composite structural wall comprises a steel plate and a concrete member fixed side by side, wherein a plurality of steel pipes are fixed at intervals at the connection between the steel plate and the concrete member, elastic members and submerged nails are arranged in sequence from top to bottom inside the steel pipes, the upper ends of the elastic members are fixedly connected to the upper edges of the steel pipes, the upper ends of the submerged nails are all flat and fixedly connected to the lower ends of the elastic members, the lower ends of the submerged nails extend axially along the steel pipes and are all pointed, traction ropes are fixed to the upper surfaces of the submerged nails, the upper ends of the traction ropes extend upward from the corresponding steel pipes and are fixedly connected to the upper edges of the steel plates, When placing a continuous wall structure in an underground trench, the elastic parts are tightened by pulling ropes to drive the corresponding submerged nails to retract completely into the steel pipe. Then, the steel plates and concrete parts are sent into the underground trench by cranes and other equipment. After reaching the designated position, one side of the steel plate is attached to the inner wall of the underground trench. The blade can be fixed to the hard rod and extended into the underground trench along the upper surface of the steel plate. Alternatively, a waterproof electric telescopic rod can be used to cut the pulling ropes on the steel plate with the blade, so that the elastic parts are stretched and the submerged nails are pushed downward out of the steel pipe until several submerged nails partially penetrate the soil layer, thereby increasing the connection area with the soil layer and improving the grip effect of the continuous wall structure in the underground trench.

[0008] A flange ring through which the corresponding traction rope passes is fixed on the upper surface of the steel pipe, and the lower surface of the flange ring is fixedly connected to the upper end of the elastic member, supporting the corresponding elastic member from above, so that the elastic member can be stably arranged inside the steel pipe.

[0009] A slide groove is provided on the upper surface of the steel plate along the axial direction. The slide groove is passed over by the traction rope from above and is used to place the back of the blade. It plays a guiding role, so that the blade moves along the slide groove in the underground groove to prevent the blade from deviating from the traction rope.

[0010] The lower edge of the steel pipe is integrally equipped with a guide channel that is plugged into the pointed head of the submerged nail. The pointed head of the submerged nail can pass through the guide channel and be guided so as to be vertically inserted into the soil layer until its flat upper end is pressed against the upper surface of the guide channel and is limited to avoid being completely separated from the steel pipe.

[0011] A plurality of reinforcing ribs fixedly connected to the steel plate are fixed on the outside of the steel pipe, and the reinforcing ribs can be welded to the steel keel to increase the firmness of the steel pipe fixed to the steel plate.

[0012] A film is fixed on the lower surface of the steel pipe to close the lower opening of the guide channel, reducing the sewage and mud entering the lower opening of the guide channel until the tip of the submerged nail passes through the guide channel and pierces the film. The thickness of the film is small and no obvious obstruction is generated.

[0013] The technical effects achieved by this utility model are:

[0014] The utility model discloses a steel plate-concrete underground composite structural wall. When a continuous wall structure is placed in an underground trench, an elastic part is tightened by a traction rope to drive the corresponding submerged nails to shrink completely inside the steel pipe. Then, a crane and other equipment are used to send the steel plate and concrete parts into the underground trench. After arriving at the designated position, one side of the steel plate is attached to the inner wall of the underground trench. A blade can be fixed to a hard rod and extended into the underground trench along the upper surface of the steel plate. Alternatively, a waterproof electric telescopic rod can be used to cut the traction ropes on the steel plate with a blade, so that the elastic part is extended and the submerged nails are pushed downward out of the steel pipe until several submerged nails partially penetrate the soil layer, thereby increasing the connection area with the soil layer, thereby improving the ground gripping effect of the continuous wall structure in the underground trench. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the main view of the combined structural wall of this utility model;

[0016] Figure 2 It is the main view of the steel plate of this utility model;

[0017] Figure 3 It is the main view of the steel pipe of this utility model;

[0018] Figure 4 It is a cross-sectional view of the steel pipe of this utility model.

[0019] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0020] 1. Steel plate; 2. Concrete member; 3. Steel pipe; 4. Elastic member; 5. Submerged nail; 6. Traction rope; 7. Flange ring; 8. Slide; 9. Guide channel; 10. Reinforcement rib; 11. Film. DETAILED DESCRIPTION

[0021] In order to make the purpose and advantages of this utility more clear, the utility is described in detail below with reference to the embodiments. It should be understood that the following text is only used to describe one or several specific implementation methods of this utility and does not strictly limit the scope of protection specifically requested by this utility.

[0022] like Figure 1-4As shown, a steel plate-concrete underground composite structure wall comprises a steel plate 1 and a concrete member 2 fixed side by side, and a number of steel pipes 3 are fixed at intervals at the connection between the steel plate 1 and the concrete member 2. Elastic parts 4 and submerged nails 5 are arranged in sequence from top to bottom inside the steel pipe 3. The elastic parts 4 can be made of alloy strong springs, and the outer surface is sprayed with an anti-rust coating. The upper end of the elastic part 4 is fixedly connected to the upper edge of the steel pipe 3. The upper ends of the submerged nails 5 are flat and fixedly connected to the lower end of the elastic part 4. The lower ends of the submerged nails 5 extend axially along the steel pipe 3 and are pointed. A traction rope 6 is fixed on the upper surface of the submerged nail 5. The traction rope 6 can be made of nylon fiber material with good tensile strength. The upper ends of the traction ropes 6 extend upward from the corresponding steel pipe 3 and are fixedly connected to the upper edge of the steel plate 1. In the prefabricated parts processing plant, the steel plate 1 of the specified size is first cut and connected to the concrete The soil and steel bar keels are welded together and then placed in the formwork to cast concrete parts 2, so that the steel plate 1 and the concrete parts 2 are fixed together, and the two ends of the steel pipe 3 extend out of the interior of the concrete parts 2 respectively. When the continuous wall structure is placed in the underground trench, the elastic part 4 is tightened by the traction rope 6 to drive the corresponding submerged nails 5 to shrink completely inside the steel pipe 3, and then the steel plate 1 and the concrete parts 2 are sent into the underground trench by a crane or other equipment. After reaching the designated position, one side of the steel plate 1 is attached to the inner wall of the underground trench. A blade can be fixed to a hard rod and extended into the underground trench along the upper surface of the steel plate 1, or a waterproof electric telescopic rod can be used to cut the traction ropes 6 on the steel plate 1 with a blade, so that the elastic part 4 stretches and pushes the submerged nails 5 downward from the steel pipe 3 until several submerged nails 5 partially penetrate the soil layer, thereby increasing the connection area with the soil layer, thereby improving the grip effect of the continuous wall structure in the underground trench.

[0023] Among them, the submerged nail 5 can extend out of the corresponding steel pipe 3 and break the soil layer with little obstruction, and the alloy strong spring exerts a large downward pressure, which is sufficient to penetrate the soil layer.

[0024] like Figure 3 and Figure 4 As shown, a flange ring 7 is fixed on the upper surface of the steel pipe 3 and is passed through by the corresponding traction rope 6. The lower edge of the flange ring 7 is fixedly connected to the upper surface of the adjacent steel pipe 3, and the lower surface of the flange ring 7 is fixedly connected to the upper end of the elastic member 4, supporting the corresponding elastic member 4 from above, so that the elastic member 4 can be stably set inside the steel pipe 3.

[0025] like Figure 1 、 Figure 2 and Figure 3 As shown, a slide groove 8 is provided axially on the upper surface of the steel plate 1, and the slide groove 8 is passed over by the traction rope 6 from above. It is used to place the back of the blade and play a guiding role, so that the blade moves along the slide groove 8 in the underground groove to prevent the blade from deviating from the traction rope 6.

[0026] like Figure 3 and Figure 4As shown, the lower edge of the steel pipe 3 is integrally installed with a guide channel 9 that is plugged into the pointed end of the submerged nail 5. The guide channel 9 is tubular, and the pointed end of the submerged nail 5 can pass through the guide channel 9 and be guided so as to be vertically inserted into the soil layer until its flat upper end is pressed against the upper surface of the guide channel 9 and is limited to avoid being completely separated from the steel pipe 3.

[0027] like Figure 2 and Figure 3 As shown, a plurality of reinforcing ribs 10 fixedly connected to the steel plate 1 are fixed on the outside of the steel pipe 3 , and the reinforcing ribs 10 can be welded to the steel keel to increase the firmness of the steel pipe 3 fixed to the steel plate 1 .

[0028] like Figure 3 and Figure 4 As shown, a film 11 for closing the lower opening of the guide channel 9 is fixed to the lower surface of the steel pipe 3. The film 11 can be made of polyethylene to reduce the sewage and mud entering the lower opening of the guide channel 9 until the tip of the submerged nail 5 passes through the guide channel 9 and pierces the film 11. The thickness of the film 11 is relatively small and does not produce obvious obstruction.

[0029] The working principle of this utility model is as follows: when placing the continuous wall structure in the underground trench, the elastic part 4 is tightened by the traction rope 6, driving the corresponding submerged nail 5 to shrink completely inside the steel pipe 3, and then the steel plate 1 and the concrete part 2 are sent into the underground trench by a crane or other equipment.

[0030] After reaching the designated position, one side of the steel plate 1 is attached to the inner wall of the underground trench, and a blade can be fixed to a hard rod and extended into the underground trench along the upper surface of the steel plate 1, or a waterproof electric telescopic rod can be used to cut the traction ropes 6 on the steel plate 1 with the blade, so that the elastic part 4 stretches and pushes the submerged nails 5 downward from the steel pipe 3 until several submerged nails 5 partially penetrate the soil layer, thereby increasing the connection area with the soil layer, thereby improving the grip effect of the continuous wall structure in the underground trench.

[0031] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this application shall be implemented in accordance with conventional means in the art unless otherwise specified or limited.

Claims

1. A steel plate-concrete underground composite structural wall, comprising a steel plate (1) and a concrete member (2) fixed side by side, characterized in that: A plurality of steel pipes (3) are fixed at intervals at the connection between the steel plate (1) and the concrete member (2), and elastic members (4) and submerged nails (5) are arranged in sequence from top to bottom inside the steel pipes (3), and the upper ends of the elastic members (4) are fixedly connected to the upper edges of the steel pipes (3), and the upper ends of the submerged nails (5) are flat and fixedly connected to the lower ends of the elastic members (4), and the lower ends of the submerged nails (5) extend axially along the steel pipes (3) and are pointed, and traction ropes (6) are fixed to the upper surfaces of the submerged nails (5), and the upper ends of the traction ropes (6) extend upward from the interior of the corresponding steel pipes (3) and are fixedly connected to the upper edges of the steel plates (1).

2. The steel plate-concrete underground composite structural wall according to claim 1, characterized in that: A flange ring (7) through which a corresponding traction rope (6) passes is fixed on the upper surface of the steel pipe (3), and the lower surface of the flange ring (7) is fixedly connected to the upper end of the elastic member (4).

3. The steel plate-concrete underground composite structural wall according to claim 1, characterized in that: A sliding groove (8) is provided on the upper surface of the steel plate (1) along the axial direction, and the sliding groove (8) is passed over by the traction rope (6) from above.

4. The steel plate-concrete underground composite structural wall according to claim 1, characterized in that: The lower edge of the steel pipe (3) is integrally provided with a guide channel (9) for plugging into the pointed end of the submerged nail (5).

5. The steel plate-concrete underground composite structural wall according to claim 1, characterized in that: A plurality of reinforcing ribs (10) fixedly connected to the steel plate (1) are fixed on the outside of the steel pipe (3).

6. The steel plate-concrete underground composite structural wall according to claim 4, characterized in that: A film (11) for sealing the lower opening of the guide channel (9) is fixed on the lower surface of the steel pipe (3).

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