Basalt corrugated board for railway tunnel and preparation method thereof

Abstract

The application discloses a basalt corrugated plate for a railway tunnel and a preparation method thereof, which comprises a basalt corrugated plate body and a basalt reinforcing piece; the basalt corrugated plate body is an arc-shaped plate, and the arc line of the basalt corrugated plate body is consistent with the extension direction of the wave crest / wave trough of the basalt corrugated plate body; a plurality of bolt connecting holes are uniformly arranged on the edge of the basalt corrugated plate body; a plurality of groups of reinforcing holes are arranged on the basalt corrugated plate body along the arc line direction; the basalt reinforcing piece comprises an arc-shaped rod and a fastening nut; the arc-shaped rod is provided with a reinforcing screw rod corresponding to the reinforcing hole, the arc-shaped rod is embedded into the wave trough of the basalt corrugated plate body in a matched mode, the length of the arc-shaped rod is less than the arc line direction length of the basalt corrugated plate body, and the two ends of the arc-shaped rod are provided with threads; the reinforcing screw rod penetrates through the reinforcing hole; and the fastening nut is connected to the reinforcing screw rod and tightly presses the basalt corrugated plate body.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tunnel disease prevention, and more particularly to a basalt corrugated plate for railway tunnel and a preparation method thereof. BACKGROUND

[0002] With long-term operation of the tunnel, some tunnel disease problems exist in the tunnel. In order to ensure normal operation of the tunnel and ensure safety of the tunnel, the tunnel disease needs to be treated regularly. The existing tunnel disease treatment method usually adopts concrete reinforcement, corrugated plate reinforcement and the like. For the concrete reinforcement scheme, the construction process is complex, the construction period is long, the efficiency is low, and the construction risk is great, which seriously affects the normal operation of the tunnel. For the corrugated plate reinforcement scheme, the process is simple, the construction period is short, and the construction risk is small. However, since there are many cables inside the tunnel, the corrugated plate is required to have insulation performance to prevent conduction. The existing common method is to brush insulating paint on both sides of the steel plate, and the plate thickness is generally 6mm, the insulating paint thickness is 1.5mm, and the total thickness is 9mm. However, the insulating paint is easy to separate in use, which may cause the danger of conduction.

[0003] Basalt fiber reinforced material (BFRP) is a new type of durable material. Basalt continuous fiber is a new type of high-tech fiber formed by drawing through a spinneret after basalt ore is melted at 1450-1500℃, which has excellent mechanical properties and high temperature resistance, high tensile strength and elastic modulus, good insulation, radiation resistance, excellent high temperature stability and chemical stability, pure natural and pollution-free, cost-effective and other advantages.

[0004] However, if the basalt fiber is made into a corrugated plate structure, there is still a defect of insufficient structural stability, and in the process of assembling, a large number of corrugated plates are assembled, which is easy to cause poor structural connection stability.

[0005] Therefore, how to provide a basalt corrugated plate for railway tunnel with strong structural stability and a preparation method thereof is a problem to be solved by those skilled in the art. SUMMARY

[0006] Therefore, the present application provides a basalt corrugated plate for railway tunnel and a preparation method thereof, which aims to solve the above technical problems.

[0007] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0008] A basalt corrugated plate for railway tunnel comprises:

[0009] The basalt corrugated plate body is an arc-shaped plate, and the arc line is consistent with the extension direction of the wave crest / wave trough; a plurality of bolt connection holes are uniformly arranged on the edge of the basalt corrugated plate body; a plurality of groups of reinforcing holes are arranged on the basalt corrugated plate body along the arc line direction;

[0010] The basalt reinforcing piece comprises an arc-shaped rod and a fastening nut; the arc-shaped rod is provided with a reinforcing screw rod corresponding to the reinforcing hole, is embedded into the wave trough of the basalt corrugated plate body, and has a length less than the arc line direction length of the basalt corrugated plate body; the arc-shaped rod is provided with a thread at both ends; the reinforcing screw rod passes through the reinforcing hole; and the fastening nut is connected to the reinforcing screw rod and tightly presses the basalt corrugated plate body.

[0011] Through the above technical scheme, the basalt fiber is used to prepare the corrugated plate, the structure strength of the corrugated plate body is improved by adding the basalt reinforcing piece, when the basalt corrugated plate bodies are butted, the structure stability can be improved by connecting the basalt reinforcing pieces, and the arc after connection can be adjusted, and the material performance and structure performance of the basalt corrugated plate are outstanding.

[0012] Preferably, in the above basalt corrugated plate for railway tunnel, the two basalt corrugated plate bodies butted along the arc line direction are fastened by bolts passing through the bolt connection holes after being overlapped by corrugation; and the corresponding end heads of the two arc-shaped rods are connected by adjusting fasteners.

[0013] Preferably, in the above basalt corrugated plate for railway tunnel, the adjusting fastener comprises a fastening sleeve and an adjusting sleeve, the fastening sleeve and the adjusting sleeve are both provided with internal threads, the fastening sleeve and the adjusting sleeve are coaxially arranged and are rotationally connected at the end heads; the fastening sleeve is threadedly fastened with the end head of one arc-shaped rod, and the adjusting sleeve is threadedly connected with the end head of the other arc-shaped rod.

[0014] Preferably, in the above basalt corrugated plate for railway tunnel, the length of the adjusting sleeve is greater than the length of the fastening sleeve. The space range of adjustment can be larger.

[0015] Preferably, in the basalt corrugated board for railway tunnel, the fastening sleeve and the adjusting sleeve are made of basalt or plastic material, which can meet the strength requirement of the structure and play an insulation role.

[0016] Preferably, in the basalt corrugated board for railway tunnel, two basalt reinforcing members are arranged on each basalt corrugated board body, which can meet the strength requirement of the structure.

[0017] Preferably, in the basalt corrugated board for railway tunnel, two reinforcing screws are arranged on each arc-shaped rod, which can meet the strength requirement of the structure.

[0018] The application further provides a preparation method of the basalt corrugated board for railway tunnel.

[0019] S1, preparing a basalt fiber base material and a resin additive;

[0020] S2, injecting the basalt fiber base material and the resin additive into a mold and performing pultrusion molding;

[0021] S3, pulling out a shaped plate and cutting and trimming the shaped plate into the basalt corrugated board body;

[0022] S4, forming the bolt connecting hole and the reinforcing hole on the basalt corrugated board body;

[0023] S5, inserting the arc-shaped rod, so that the reinforcing screw passes through the reinforcing hole and the fastening nut is tightened.

[0024] Through the above technical solution, the preparation method of the basalt corrugated board for railway tunnel provided by the application is prepared by using basalt fiber material and assembled and fixed by assembling, which not only has the properties of corrosion resistance, electric conduction resistance and high temperature resistance, but also has the advantages of simple process, short construction period and small construction risk.

[0025] Preferably, in the preparation method of the basalt corrugated plate for railway tunnel, when the two basalt corrugated plate bodies are butted along the arc direction, the corrugated plates are overlapped and fastened through the bolt connection holes by bolts; the corresponding ends of the two arc-shaped rods are connected through an adjusting fastener; the adjusting fastener comprises a fastening sleeve and an adjusting sleeve, the fastening sleeve and the adjusting sleeve are both internally threaded, the fastening sleeve and the adjusting sleeve are coaxially arranged and are rotationally connected at the ends; the end of one of the arc-shaped rods is threadedly fastened with the fastening sleeve, and the end of the other arc-shaped rod is threadedly connected with the adjusting sleeve, and the length of the butt joint of the two arc-shaped rods is adjusted by screwing the adjusting sleeve. The bolts can quickly connect the two basalt corrugated plate bodies, the adjusting fastener can further improve the structural stability of the connected structure, and the curvature of the connected structure can be adjusted.

[0026] Preferably, in the preparation method of the basalt corrugated plate for railway tunnel, the basalt fiber for preparing the basalt corrugated plate body comprises basalt stone, and further comprises one or two or more than two of polypropylene, polycarbonate, nano silicon carbide, chromium carbide, ceramic silicone rubber, phenolic plastic ester, and nano magnesium oxide. The material preparation requirements can be met.

[0027] According to the above technical solution, compared with the prior art, the basalt corrugated plate for railway tunnel and the preparation method thereof have the following beneficial effects:

[0028] 1. The basalt corrugated plate is prepared by using basalt fiber, the structural strength of the basalt corrugated plate body is improved by adding a basalt reinforcing member, the structural stability of the basalt corrugated plate body after butt joint can be improved by connecting the basalt reinforcing member, and the curvature after connection can be adjusted, and the material performance and structural performance of the basalt corrugated plate are outstanding.

[0029] 2. The preparation method of the basalt corrugated plate for railway tunnel is prepared by using basalt fiber material and assembled and fixed by assembling, and has the advantages of corrosion resistance, electric conduction resistance, high temperature resistance, simple process, short construction period, and small construction risk.

[0030] 3. The adjusting fastener can improve the structural stability of the two basalt corrugated plate bodies after connection and adjust the curvature after connection, and only needs to be screwed for connection, which is simple and stable. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only represent some embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art without creative effort based on the provided drawings also belong to the protection scope of the present application.

[0032] Figure 1 The accompanying drawings are schematic diagrams of the front structure of the basalt corrugated plate provided by the present application.

[0033] Figure 2 The accompanying drawings are schematic diagrams of the back structure of the basalt corrugated plate provided by the present application.

[0034] Figure 3 The accompanying drawings are schematic diagrams of the structure of the basalt reinforcing member provided by the present application.

[0035] Figure 4 The accompanying drawings are schematic diagrams of the structure of the connection of two basalt corrugated plate bodies provided by the present application.

[0036] Figure 5 The accompanying drawings are schematic diagrams of the structure of the adjusting fastener provided by the present application.

[0037] Wherein:

[0038] 1-basalt corrugated plate body;

[0039] 11-bolt connection hole; 12-reinforcing hole;

[0040] 2-basalt reinforcing member;

[0041] 21-arc-shaped rod; 22-fastening nut; 23-reinforcing screw rod;

[0042] 3-bolt;

[0043] 4-adjusting fastener;

[0044] 41-fastening sleeve; 42-adjusting sleeve. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments only represent some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort also belong to the protection scope of the present application.

[0046] Referring to the accompanying drawings, Figure 1 to the accompanying drawings, Figure 5 the embodiments of the present application disclose a basalt corrugated plate for railway tunnel, comprising:

[0047] The basalt corrugated plate body 1 is an arc-shaped plate, and the arc line is consistent with the extension direction of the wave crest / wave trough; a plurality of bolt connection holes 11 are uniformly arranged on the edge of the basalt corrugated plate body 1; a plurality of groups of reinforcing holes 12 are arranged on the basalt corrugated plate body 1 along the arc line direction;

[0048] The basalt reinforcing piece 2 comprises an arc-shaped rod 21 and a fastening nut 22; the arc-shaped rod 21 is provided with a reinforcing screw rod 23 corresponding to the reinforcing hole 12, the arc-shaped rod 21 is embedded into the wave trough of the basalt corrugated plate body 1, and the length is less than the arc line direction length of the basalt corrugated plate body 1; the arc-shaped rod 21 is provided with a thread at both ends; the reinforcing screw rod 23 passes through the reinforcing hole 12; and the fastening nut 22 is connected to the reinforcing screw rod 23 and tightly presses the basalt corrugated plate body 1.

[0049] In order to further optimize the above technical scheme, two basalt corrugated plate bodies 1 butted along the arc line direction are fastened by the bolt 3 passing through the bolt connection hole 11 after being overlapped by the corrugation; the corresponding end heads of the two arc-shaped rods 21 are connected by the adjusting fastener 4.

[0050] In order to further optimize the above technical scheme, the adjusting fastener 4 comprises a fastening sleeve 41 and an adjusting sleeve 42; the fastening sleeve 41 and the adjusting sleeve 42 are both provided with internal threads, the fastening sleeve 41 and the adjusting sleeve 42 are coaxially arranged, and the end heads are rotationally connected; the fastening sleeve 41 is threadedly and fasteningly connected with the end head of one arc-shaped rod 21, and the adjusting sleeve 42 is threadedly connected with the end head of the other arc-shaped rod 21.

[0051] In order to further optimize the above technical scheme, the length of the adjusting sleeve 42 is greater than the length of the fastening sleeve 41.

[0052] In order to further optimize the above technical scheme, the fastening sleeve 41 and the adjusting sleeve 42 are both made of basalt material or plastic material.

[0053] In order to further optimize the above technical scheme, two basalt reinforcing pieces 2 are installed on each basalt corrugated plate body 1.

[0054] In order to further optimize the above technical scheme, two reinforcing screw rods 23 are arranged on each arc-shaped rod 21.

[0055] The preparation method of the basalt corrugated plate for railway tunnel provided by the application specifically comprises the following steps:

[0056] S1, preparing basalt fiber base material and resin auxiliary agent;

[0057] S2, injecting the basalt fiber base material and the resin auxiliary agent into a mold and performing pultrusion molding;

[0058] S3, pull out the shaped plate, cut and tailor into basalt corrugated plate body 1;

[0059] S4, set bolt connecting hole 11 and reinforcing hole 12 on basalt corrugated plate body 1;

[0060] S5, insert arc-shaped rod 21, so that reinforcing screw rod 23 passes through reinforcing hole 12, and tighten fastening nut 22.

[0061] In order to further optimize the above technical scheme, when the two basalt corrugated plate bodies 1 are butted along the arc direction, the bolt 3 is fastened through the bolt connecting hole 11 after the corrugated lap; the corresponding ends of the two arc-shaped rods 21 are connected through the adjusting fastener 4; the adjusting fastener 4 includes a fastening sleeve 41 and an adjusting sleeve 42, the fastening sleeve 41 and the adjusting sleeve 42 are both internally threaded, the fastening sleeve 41 and the adjusting sleeve 42 are coaxially arranged, and the ends are rotationally connected; the fastening sleeve 41 is threadedly fastened with the end of one arc-shaped rod 21, the adjusting sleeve 42 is threadedly connected with the end of the other arc-shaped rod 21, and the length of the butt joint of the two arc-shaped rods 21 is adjusted by screwing the adjusting sleeve 42.

[0062] In order to further optimize the above technical scheme, the basalt fiber for preparing the basalt corrugated plate body 1 includes basalt stone, and further includes one or two or more than two of polypropylene, polycarbonate, nano silicon carbide, chromium carbide, ceramic silicone rubber, phenolic plastic ester, and nano magnesium oxide.

[0063] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the related parts can be referred to the method part.

[0064] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A basalt corrugated sheet for railway tunnel, characterized by, Include: Basalt corrugated board body (1); the basalt corrugated board body (1) is arc-shaped plate, and its arc line is consistent with the extension direction of its wave crest / wave trough; the edge of the basalt corrugated board body (1) is uniformly provided with a plurality of bolt connection holes (11); a plurality of reinforcing holes (12) are formed on the basalt corrugated board body (1) along the arc line direction; Basalt reinforcing piece (2); the basalt reinforcing piece (2) includes an arc-shaped rod (21) and a fastening nut (22); the arc-shaped rod (21) has a reinforcing screw rod (23) corresponding to the reinforcing hole (12), the arc-shaped rod (21) is embedded in the wave trough of the basalt corrugated board body (1), and the length is less than the arc line direction length of the basalt corrugated board body (1), the arc-shaped rod (21) has a thread at both ends; the reinforcing screw rod (23) passes through the reinforcing hole (12); the fastening nut (22) is connected to the reinforcing screw rod (23), and the basalt corrugated board body (1) is clamped tightly; Two pieces of the basalt corrugated board body (1) are connected in the arc line direction, and are fastened by a bolt (3) passing through the bolt connection hole (11) after being overlapped in a wave shape; the corresponding end heads of two arc-shaped rods (21) are connected by an adjusting fastener (4); The adjusting fastener (4) includes a fastening sleeve (41) and an adjusting sleeve (42); the fastening sleeve (41) and the adjusting sleeve (42) are coaxially arranged, and the end heads are rotationally connected; the fastening sleeve (41) is threadedly connected with the end head of one arc-shaped rod (21), and the adjusting sleeve (42) is threadedly connected with the end head of another arc-shaped rod (21); When two pieces of the basalt corrugated board body (1) are connected in the arc line direction, they are overlapped in a wave shape and fastened by a bolt (3) passing through the bolt connection hole (11); the corresponding end heads of two arc-shaped rods (21) are connected by an adjusting fastener (4); the adjusting fastener (4) includes a fastening sleeve (41) and an adjusting sleeve (42), the fastening sleeve (41) and the adjusting sleeve (42) are coaxially arranged, and the end heads are rotationally connected; the fastening sleeve (41) is threadedly connected with the end head of one arc-shaped rod (21), and the adjusting sleeve (42) is threadedly connected with the end head of another arc-shaped rod (21), and the length of the two arc-shaped rods (21) is adjusted by rotating the adjusting sleeve (42); The preparation method of the basalt corrugated board for railway tunnel specifically includes the following steps: S1, preparing basalt fiber base material and resin additive; S2, injecting the basalt fiber base material and the resin additive into a mold for pultrusion molding; S3, pulling out the shaped plate and cutting it into the basalt corrugated board body (1); S4, forming the bolt connection hole (11) and the reinforcing hole (12) on the basalt corrugated board body (1); S5, the arc-shaped rod (21) is inserted, so that the reinforcing screw rod (23) passes out of the reinforcing hole (12), and the fastening nut (22) is tightened.

2. A basalt corrugated sheet for railway tunnel according to claim 1, characterized in that, The length of the adjusting sleeve (42) is greater than the length of the fastening sleeve (41).

3. A basalt corrugated sheet for railway tunnel according to claim 1, characterized in that, The fastening sleeve (41) and the adjusting sleeve (42) are made of basalt or plastic.

4. A basalt corrugated sheet for railway tunnel according to claim 1, wherein Each of the basalt corrugated plate bodies (1) is provided with two basalt reinforcing members (2).

5. A basalt corrugated sheet for railway tunnel according to claim 4, characterized in that, Each of the arc-shaped rods (21) is provided with two reinforcing screw rods (23).

6. A basalt corrugated sheet for railway tunnel according to claim 1, wherein The basalt fiber for preparing the basalt corrugated plate body (1) comprises basalt stone material, and further comprises one or two or more than two of polypropylene, polycarbonate, nano silicon carbide, chromium carbide, ceramic silicone rubber, phenolic plastic ester and nano magnesium oxide.

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