High-speed rail tunnel structure health monitoring portal collection box fixing device

Abstract

The utility model provides a high-speed rail tunnel structure health monitoring portal collection box fixing device which comprises a cabinet, a wind power sensor is arranged on the side, close to a rail, of the cabinet and used for monitoring the magnitude of wind power generated when a train travels and passes through the cabinet, a bearing platform is arranged at the bottom of the cabinet, and bolt holes are formed in the bearing platform. Chemical bolts are inserted into the bolt holes, the cabinet and the bearing platform are fixed through the chemical bolts, bolt loosening sensors are installed on the chemical bolts and used for monitoring the loosening state of the chemical bolts, and the bearing platform is connected with a foundation; the wind power sensor provided by the utility model can monitor the wind power generated when the high-speed rail train passes through the cabinet; the bolt loosening sensor installed on the chemical bolt can accurately measure the relative screwing-out angle of the nut, so that the loosening state of the chemical bolt is monitored, the service life of the fixing device can be longer, and the fixing device is convenient to disassemble and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of high-speed railway tunnel structure health monitoring, in particular to a high-speed railway tunnel structure health monitoring hole opening collection box fixing device. Background Art

[0002] At present, in order to monitor the health of high-speed railway tunnel structures, such as tunnel dynamic strain, tunnel convergence deformation, tunnel crack displacement, tunnel water pressure, etc., it is usually necessary to install a data acquisition box at the entrance of the high-speed railway tunnel to monitor the health of the high-speed railway tunnel structure to ensure that the high-speed railway tunnel meets the requirements for normal operation. In order to ensure the stability of the collection box, it needs to be fixed by a fixing device before use.

[0003] The existing collection box fixtures have a short service life, which requires frequent replacement, and the replacement of fixtures is cumbersome. At the same time, the ability to resist the high wind speeds generated by high-speed trains is weak, prone to fatigue damage, and unable to monitor the wind speed of the train and the looseness of the bolts, so further improvement is needed. Utility Model Content

[0004] The purpose of the utility model is to provide a fixing device for long-term fixing of a collection box at the entrance of a high-speed railway tunnel structure health monitoring site in view of the deficiencies in the above-mentioned background technology, so as to solve the problem that the existing collection box fixing device has a short service life, resulting in the need to frequently replace the fixing device, and the replacement of the fixing device is relatively cumbersome, and the fixing effect is not good for large collection boxes, which are prone to shaking.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a high-speed railway tunnel structure health monitoring hole entrance collection box fixing device, including a cabinet, a wind sensor is arranged on the side of the cabinet close to the track, and the wind sensor is used to monitor the wind force generated when the train passes through the cabinet. A base is arranged at the bottom of the cabinet, and bolt holes are arranged on the base. Chemical bolts are inserted in the bolt holes. The chemical bolts fix the cabinet to the base, and a bolt loosening sensor is installed on the chemical bolt. The bolt loosening sensor is used to monitor the loosening state of the chemical bolt. The base is connected to the foundation.

[0006] Furthermore, the cabinet is a dustproof and waterproof industrial cabinet, and the cabinet is equipped with a heat exhaust fan.

[0007] Furthermore, the foundation includes a trapezoidal platform, the trapezoidal platform is in contact with the bearing platform, and drainage ditches are arranged on both sides of the trapezoidal platform.

[0008] Furthermore, the height of the trapezoidal platform is 5 cm and the slope is 2%.

[0009] Furthermore, the foundation includes concrete, a steel cage located inside the concrete, and angle steel connecting the concrete and the soil below.

[0010] Furthermore, the foundation is arranged in a foundation pit, and the angle steels are located at the four corners of the foundation pit.

[0011] Furthermore, the dimensions of the foundation pit are 80 cm in length, 80 cm in width and 50 cm in height.

[0012] Furthermore, the angle steel is an equilateral angle steel, the side width of the angle steel is 50 mm, the side thickness is 3 mm, the length is 110 cm, and it protrudes 10 cm from the bottom of the foundation pit.

[0013] Furthermore, the steel cage is in the form of a rectangular parallelepiped, with dimensions of 44 cm in length, 35 cm in width and 40 cm in height, and is welded from longitudinal bars, transverse bars and stirrups. The diameter of the longitudinal bars is 18 mm, the diameter of the transverse bars is 10 mm, and the diameter of the stirrups is 7 mm.

[0014] The above solution of the utility model has the following beneficial effects:

[0015] The utility model provides a high-speed railway tunnel structure health monitoring hole entrance collection box fixing device. The wind force sensor installed on the cabinet near the track side can monitor the wind force generated when the high-speed railway train passes through the cabinet. If the wind force exceeds the bearing capacity of the bolt, other reinforcement measures can be taken in time. The bolt loosening sensor installed on the chemical bolt can accurately measure the relative screw-out angle of the nut, thereby monitoring the loosening state of the chemical bolt and improving the reliability of the fixing device. By constructing a reinforced concrete foundation under the cabinet, the strength is higher and more stable than the original soil, and it is not affected by groundwater and external activities, so that the service life of the fixing device is longer. The bolt fixing method is easy to install while ensuring stability, and is convenient for disassembly and maintenance.

[0016] Other beneficial effects of the present invention will be described in detail in the subsequent specific implementation sections. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the foundation structure of the utility model.

[0019] [Description of Reference Numerals]

[0020] 1-cabinet; 2-wind sensor; 3-base; 4-chemical bolt; 5-bolt loosening sensor; 6-foundation; 7-angle steel; 8-rebar cage; 9-drainage ditch. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the present application, the present application will be described more comprehensively with reference to the relevant drawings below. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many other different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0023] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0026] like Figure 1 As shown, the embodiment of the utility model provides a high-speed railway tunnel structure health monitoring hole port collection box fixing device, including a cabinet 1, the cabinet 1 is a dustproof and waterproof industrial cabinet 1, and the cabinet 1 is equipped with a heat exhaust fan. A wind sensor 2 is installed on the side of the cabinet 1 close to the track. The wind sensor 2 can monitor the wind force generated when the train passes through the cabinet 1. According to the wind force, it can be determined whether the cabinet 1 needs to take other reinforcement measures.

[0027] A base 3 is provided at the bottom of the cabinet 1, and the base 3 is used to support the cabinet 1. The base 3 is provided with a plurality of bolt holes, and the cabinet 1 is fixed to the base 3 by chemical bolts 4. A bolt loosening sensor 5 is installed on the chemical bolt 4, which can accurately measure the relative screw-out angle of the nut, thereby monitoring the loosening state of the chemical bolt 4 to ensure reliability and safety. The chemical bolt 4 is composed of a chemical hose, a screw, a washer and a nut. The chemical hose contains a reactive resin, a curing agent and quartz particles. The cabinet 1 is fixed to the base 3 by using the strong anchoring force of the chemical bolt.

[0028] For the cabinet 1, since it is set at the entrance of the high-speed railway tunnel, the influence of the wind from the high-speed train is more significant, and higher requirements are put forward for its wind pressure resistance and fatigue resistance. Therefore, in this embodiment, through the setting of the wind sensor 2 and the bolt loosening sensor 5, the effect of real-time monitoring can be achieved, so that timely measures can be taken when safety hazards occur.

[0029] At the same time Figure 2 As shown, in this embodiment, the cap 3 is set on the foundation 6, and the foundation 6 needs to be excavated downwards and fixed relative to the ground of the hole. Specifically, the foundation 6 is first constructed into a foundation pit, angle steels 7 are constructed at the four corners of the foundation pit, and a steel cage 8 is constructed at the center of the bottom of the foundation pit. Finally, concrete is poured. The concrete adopts concrete with a strength grade of C25. The part of the concrete above the ground is in the form of a high middle and low surrounding, that is, a trapezoidal platform with a height of 5 cm and a slope of 2%. A certain slope can avoid water accumulation, and the accumulated water can be drained along the drainage ditches 9 on both sides to avoid corrosion of the reinforced concrete, thereby increasing the service life of the fixing device. Among them, the drainage ditches 9 are set on both sides of the foundation 6 (cap 3).

[0030] In this embodiment, the material of the angle steel 7 is Q235 carbon structural steel, and an equilateral angle steel 7 is used, with two sides of equal width. It is preferred to adopt a solution with a side width of 50 mm, a side thickness of 3 mm, a length of 110 cm, and 10 cm exposed from the bottom of the pit, so that the fixing device forms a reliable connection with the soil below, making the fixing device more stable.

[0031] In this embodiment, the steel cage 8 is in the form of a rectangular parallelepiped, with dimensions preferably of 44 cm in length, 35 cm in width and 40 cm in height. It is welded from longitudinal bars, transverse bars and stirrups. The diameter of the longitudinal bars is 18 mm, the diameter of the transverse bars is 10 mm, and the diameter of the stirrups is 7 mm. The steel cage 8 can improve the bearing capacity of concrete.

[0032] When adopting the scheme provided in this embodiment, first select an open and flat location, construct a foundation pit with a length of 80 cm, a width of 80 cm, and a height of 50 cm on the ground, clean the debris in the pit, install angle steels 7 at the four corners of the foundation pit, the total length of the angle steels 7 is 110 cm, and 10 cm is exposed from the bottom of the pit, and then put the prepared steel cage 8 into it. After the steel cage 8 is fixed, pour concrete, fill the foundation pit, and continue to pour into a trapezoidal platform with a high middle, low sides, a height of 5 cm, and a slope of 2%. Dig two drainage ditches 9 on both sides of the trapezoidal platform, place a cap 3 on the trapezoidal platform, and place a cabinet 1 on the cap 3. After adjusting the position, use chemical bolts 4 to penetrate the bolt holes on the cap 3 and drive them into the concrete to fix the cabinet 1, fix the wind sensor 2 on the side of the cabinet 1 close to the track, and finally install the bolt loosening sensor 5 on the chemical bolts 4.

[0033] By adopting the solution provided in this embodiment, a reinforced concrete foundation is constructed under the cabinet 1, which has higher strength and is more stable than the original soil, and is not affected by groundwater and external activities, thereby extending the service life of the fixing device; the bolt fixing method is easy to install while ensuring stability, and is convenient for disassembly and maintenance; the wind sensor 2 installed on the cabinet 1 close to the track side can monitor the wind force generated when the high-speed train passes through the cabinet 1. If the wind force exceeds the bearing capacity of the bolt, other reinforcement measures can be taken in time; the bolt loosening sensor 5 is installed on the chemical bolt 4, which can accurately measure the relative screw-out angle of the nut, thereby monitoring the loosening state of the chemical bolt 4, further improving the reliability of the fixing device.

[0034] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0035] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A high-speed railway tunnel structure health monitoring hole port collection box fixing device, characterized in that: The invention comprises a cabinet (1), wherein a wind sensor (2) is arranged on one side of the cabinet (1) close to a track, and the wind sensor (2) is used to monitor the magnitude of wind force generated when a train passes through the cabinet (1); a support platform (3) is arranged at the bottom of the cabinet (1), and the support platform (3) is provided with bolt holes, and chemical bolts (4) are inserted into the bolt holes, and the chemical bolts (4) fix the cabinet (1) and the support platform (3); a bolt loosening sensor (5) is installed on the chemical bolt (4), and the bolt loosening sensor (5) is used to monitor the loosening state of the chemical bolt (4); and the support platform (3) is connected to a foundation (6).

2. A high-speed railway tunnel structure health monitoring hole port collection box fixing device according to claim 1, characterized in that: The cabinet (1) is a dustproof and waterproof industrial cabinet (1), and the cabinet (1) is equipped with a heat exhaust fan.

3. A high-speed railway tunnel structure health monitoring hole port collection box fixing device according to claim 1, characterized in that: The foundation (6) comprises a trapezoidal platform, the trapezoidal platform is in contact with the support platform (3), and drainage ditches (9) are arranged on both sides of the trapezoidal platform.

4. A high-speed railway tunnel structure health monitoring hole port collection box fixing device according to claim 3, characterized in that: The height of the trapezoidal platform is 5 cm, and the slope is 2%.

5. A high-speed railway tunnel structure health monitoring hole port collection box fixing device according to claim 1, characterized in that: The foundation (6) comprises concrete, a steel cage (8) located inside the concrete, and angle steel (7) connecting the concrete and the soil below.

6. A high-speed railway tunnel structure health monitoring hole port collection box fixing device according to claim 5, characterized in that: The foundation (6) is arranged in a foundation pit, and the angle steels (7) are located at the four corners of the foundation pit.

7. A high-speed railway tunnel structure health monitoring hole port collection box fixing device according to claim 6, characterized in that: The dimensions of the foundation pit are 80 cm in length, 80 cm in width and 50 cm in height.

8. A high-speed railway tunnel structure health monitoring hole port collection box fixing device according to claim 7, characterized in that: The angle steel (7) is an equilateral angle steel, and has a side width of 50 mm, a side thickness of 3 mm, a length of 110 cm, and protrudes 10 cm from the bottom of the foundation pit.

9. A high-speed railway tunnel structure health monitoring hole port collection box fixing device according to claim 8, characterized in that: The steel cage (8) is in the form of a cuboid, with dimensions of 44 cm in length, 35 cm in width and 40 cm in height, and is welded from longitudinal bars, transverse bars and stirrups, wherein the diameter of the longitudinal bars is 18 mm, the diameter of the transverse bars is 10 mm, and the diameter of the stirrups is 7 mm.

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