Device for connecting the areas of a double-phase corrugated stainless steel bed for the reinforcement of operating tunnels

Abstract

The present application relates to a kind of device of operating tunnel reinforcement with two-phase corrugated stainless steel track bed area connection, using steel bracket with tenon, tenon is inserted to the position of corrugated steel wave crest, steel bracket and corrugated steel are connected and fixed by planting bolt, provide effective tensile force;The bottom of the corrugated steel is top with the top of steel bracket, provide effective compression resistance.The present application uses high-strength chemical anchor bolt to connect corrugated steel and steel bracket, and the top surface of steel bracket and the bottom surface of corrugated steel are pushed in, which can provide good tensile force and compression resistance simultaneously.The present application is suitable for the connection of corrugated steel and steel plate, especially suitable for the working condition of two-phase corrugated stainless steel lining reinforcement in the area of operating tunnel with track bed.

Description

TECHNICAL FIELD

[0001] The application relates to a device for connecting a double-phase corrugated stainless steel track bed area of an operating tunnel, and is particularly suitable for the working condition of reinforcing the double-phase corrugated stainless steel lining of the track bed area of the operating tunnel. BACKGROUND

[0002] With the increase of the mileage and operation years of the subway in each city, the convergence deformation of the subway shield tunnel is continuously intensified. The steel ring is the most effective process for controlling the convergence deformation of the shield tunnel. However, with the extension of the subway operation time, the disadvantages of the steel ring construction are continuously magnified. Since the steel plate is heavy, the mechanical hand needs to be matched with the construction, and the construction efficiency of the lining steel ring is seriously limited.

[0003] The double-phase corrugated stainless steel is a new type of material with high strength, corrosion resistance and fire resistance. The 6mm wall thickness can replace the existing 20mm thick steel plate. However, the corrugated steel cannot form a ring due to the influence of the track bed. Since the corrugated steel has high strength, the development cost of the processing die is high, and the connection of the track bed area is still a problem. SUMMARY

[0004] In view of the above problems, the application provides a device for connecting a double-phase corrugated stainless steel track bed area of an operating tunnel.

[0005] In order to solve the above technical problems, the technical scheme adopted by the application is as follows: a device for connecting a double-phase corrugated stainless steel track bed area of an operating tunnel, which adopts a steel bracket with a tenon, the tenon is inserted into the wave peak position of the corrugated steel, the tenon is connected and fixed with the steel bracket and the corrugated steel through a planting bolt to provide effective tensile resistance, and the bottom of the corrugated steel is in top-to-top contact with the top of the steel bracket to provide effective compressive resistance.

[0006] Further, the corrugated steel is double-phase corrugated stainless steel with a specification of 460mm in width, 45mm in thickness and 6mm in wall thickness.

[0007] Further, a reserved hole with a diameter of 24mm is arranged at the position 50mm away from the bottom surface of the wave peak of the corrugated steel.

[0008] Further, the reserved hole is planted with a high-strength chemical anchor bolt on the concrete segment.

[0009] Further, the size of the tenon is 100mm*70mm*20mm, and a bolt hole with a diameter of 24mm is reserved at the center of the tenon.

[0010] Further, the steel bracket is 460mm in width and 20mm in thickness.

[0011] Further, the tenon is reserved when the steel bracket is manufactured, and a bolt hole is arranged on the tenon.

[0012] The application has the following beneficial effects:

[0013] The application adopts high-strength chemical anchor bolt to connect the corrugated steel and the steel bracket, and the top surface of the steel bracket and the bottom surface of the corrugated steel are pushed in, which can provide good tension and pressure at the same time. The application is suitable for the connection of the corrugated steel and the steel plate, and is particularly suitable for the working condition of the double-phase corrugated stainless steel lining reinforcement in the operating tunnel bed area. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is the front view of the device for connecting the double-phase corrugated stainless steel bed area of the operating tunnel reinforcement according to the application;

[0015] Figure 2 is the side view of the device for connecting the double-phase corrugated stainless steel bed area of the operating tunnel reinforcement according to the application;

[0016] Figure 3 is the sectional view of the device for connecting the double-phase corrugated stainless steel bed area of the operating tunnel reinforcement according to the application. DETAILED DESCRIPTION

[0017] The embodiments of the application will be further described in detail below with reference to the accompanying drawings.

[0018] As shown in Figure 1 , 2 , 3, the device for connecting the double-phase corrugated stainless steel bed area of the operating tunnel reinforcement according to the application comprises a steel bracket 1, a tenon 2, a steel bracket fixing bolt 3, a corrugated steel 4, a connecting bolt 5 and a corrugated steel fixing bolt 6.

[0019] The application adopts the steel bracket 1 with the tenon 2, the tenon 2 is inserted into the wave peak position of the corrugated steel 4, the steel bracket 1 and the corrugated steel 4 are connected by planting the connecting bolt 5, and effective tensile resistance is provided; the bottom of the corrugated steel 4 and the top of the steel bracket 1 are pushed in, and effective compressive resistance is provided.

[0020] Preferably, the corrugated steel 4 adopts double-phase corrugated stainless steel, the double-phase corrugated stainless steel has a specification of 460 mm in width, 45 mm in thickness and 6 mm in wall thickness; the steel bracket has a width of 460 mm and a thickness of 20 mm; the tenon 2 has a size of 100 mm*70 mm*20 mm, and a bolt hole with a diameter of 24 mm is reserved in the center of the tenon 2.

[0021] Preferably, the corrugated steel 4 can be installed closely to the reinforcement object by inserting the steel bracket 1 with the tenon 2 into the wave peak position of the double-phase corrugated stainless steel.

[0022] Preferably, the bottom surface of the double-phase corrugated stainless steel and the top surface of the steel bracket 1 are pushed against each other, and reliable compressive resistance is provided.

[0023] The device according to the application has the following characteristics:

[0024] a.The corrugated steel and the steel bracket in the application form effective connection, which can provide good tension and pressure at the same time.

[0025] b.In the application, the steel bracket pre-connection tenon has a size of 100mm*70mm*20mm and a center opening of a 24mm diameter hole.

[0026] c.A 24mm diameter reserved hole is opened at a position 50mm away from the bottom surface of the corrugated steel.

[0027] d.During installation and construction, the bottom surface of the corrugated steel is tightly attached to the top surface of the steel bracket.

[0028] e.The reserved hole is planted with high-strength chemical anchor bolts on the concrete segment.

[0029] The use method of the embodiment of the application is as follows:

[0030] a.In the operation tunnel lining reinforcement construction, the bracket tenon is reserved when the steel bracket is made, and bolt holes are opened on the bracket tenon.

[0031] b.After the steel bracket is made, it is transported to the site for installation.

[0032] c.After the corrugated steel is made, it is transported to the site for installation, the bottom surface of the corrugated steel is tightly attached to the top surface of the steel bracket, and the corrugated steel is fixed after the reserved bolt holes are aligned.

[0033] d.The connecting bolt holes are opened, and high-strength chemical anchor bolts are planted for anchoring.

Claims

1. A device for regional connection of duplex corrugated stainless steel track bed for tunnel reinforcement, characterized in that: A steel bracket with a tenon joint is used. The tenon is inserted into the crest of the corrugated steel and fixed with bolts to form a tensile force transmission path. The bottom of the corrugated steel is aligned with the top of the steel bracket, and the contact surface of the two directly bears the pressure, providing a compressive force transmission path. The corrugated steel is made of duplex corrugated stainless steel with the following specifications: width 460mm, thickness 45mm, and wall thickness 6mm. A 24mm diameter pre-drilled hole is made at the crest of the corrugated steel 50mm from the bottom surface. High-strength chemical anchors are inserted into the pre-drilled hole and attached to the concrete segment. The tenon dimensions are 100mm×70mm×20mm, and a 24mm diameter bolt hole is pre-drilled in the center of the tenon. The steel bracket is 460mm wide and 20mm thick. The steel bracket is pre-drilled with a tenon during manufacturing, and a bolt hole is made on the tenon.

Images