CN210264826U - Tunnel system with vibration detection function - Google Patents
Tunnel system with vibration detection function Download PDFInfo
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- CN210264826U CN210264826U CN202020079594.0U CN202020079594U CN210264826U CN 210264826 U CN210264826 U CN 210264826U CN 202020079594 U CN202020079594 U CN 202020079594U CN 210264826 U CN210264826 U CN 210264826U
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- sensing optical
- vibration sensing
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Abstract
The utility model discloses a from tunnel system who takes vibration to detect function, including tunnel body and vibration sensing optical cable, the tunnel body includes tunnel roof, tunnel lateral wall and tunnel bottom surface, and tunnel roof, tunnel lateral wall and tunnel bottom surface enclose and establish the formation ring body, and tunnel bottom surface facial make-up is equipped with the rail that two intervals set up, and the tunnel bottom surface of one of them rail one side has installed vibration sensing optical cable, and the tunnel lateral wall is close to tunnel bottom surface department and is equipped with vibration sensing optical cable. The utility model discloses a tunnel system from area vibration detection function through set up the vibration sensor optical cable on tunnel bottom surface and tunnel lateral wall, can carry out real time monitoring to the environment of every node in the tunnel, reduces the intensity of labour that traditional manual work detected, simultaneously with traditional adoption point type vibration sensor gather the inside whole data in tunnel and compare, the utility model discloses a vibration sensing optical cable, its data acquisition is more comprehensive, and data analysis security is higher.
Description
Technical Field
The utility model relates to a tunnel check out test set technical field, more specifically say, relate to a tunnel system from area vibration detection function.
Background
In a rail transit system, the safety state of a subway engineering structure is directly related to operation safety. A safety monitoring system for a subway tunnel structure relates to many aspects, and vibration monitoring is an important link. The distance of the subway tunnel is long, and the geological conditions of the passing area are complex and changeable. The structural vibration caused by the train running causes the damage of the soil layer structure around the tunnel, and the long-term vibration sinking is generated, so that the deformation of the tunnel structure is caused. When the subway operates, the upper part of the tunnel is also disturbed by construction excavation, earthwork landfill and other external factors. The tunnel structure vibration detection is required to carry out full-time full-coverage leakage-free high-speed detection on a large-range vibration signal of a full line, and a few conventional point type vibration sensors obviously cannot meet the requirement.
Therefore, how to provide a tunnel system capable of rapidly and accurately detecting the tunnel environment becomes an important technical problem in the monitoring and development of the tunnel environment at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides a simple structure, simple to operate and improve swift, the accurate tunnel system who detects the function from taking the vibration of data acquisition to solve the problem of the current tunnel condition.
According to the utility model discloses an aspect provides a tunnel system from area vibration detection function, including tunnel body and vibration sensing optical cable, the tunnel body includes tunnel roof, tunnel lateral wall and tunnel bottom surface, the tunnel roof the tunnel lateral wall with the tunnel bottom surface encloses establishes the formation ring body, tunnel bottom surface facial make-up is equipped with the rail that two intervals set up, and one of them rail one side the tunnel bottom surface has been installed vibration sensing optical cable, the tunnel lateral wall is close to tunnel bottom surface department is equipped with vibration sensing optical cable.
On the basis of the scheme, preferably, the bottom surface of the tunnel is provided with a groove, the vibration sensing optical cable is embedded in the groove, and the groove is filled with an epoxy resin mortar layer.
On the basis of the scheme, preferably, the vibration sensing optical cable on the side wall of the tunnel is fixed through a lock catch, and epoxy resin mortar is filled between the vibration sensing optical cable and the side wall of the tunnel.
Preferably on the basis of the scheme, the vibration sensing optical cable comprises a protective sleeve, a reinforcing core and optical fibers, the reinforcing core is installed with the optical fibers in the protective sleeve, the optical fibers are externally provided with a loose sleeve, the reinforcing core is three, the center of the reinforcing core is in an equilateral triangle shape, the optical fibers are arranged at the center of the protective sleeve, and the outer edge face of the loose sleeve is clamped with the outer edge face of the reinforcing core.
On the basis of the scheme, preferably, the bottom of the protective sleeve extends outwards to form a step-shaped flexible sticky colloid, and the flexible sticky colloid is bonded with the bottom of the protective sleeve.
On the basis of the scheme, the bottom of the protective sleeve is preferably provided with positioning clamping feet, and the positioning clamping feet are arranged on two sides of the flexible viscous colloid.
The utility model discloses a tunnel system from area vibration detection function through set up the vibration sensor optical cable on tunnel bottom surface and tunnel lateral wall, can carry out real time monitoring to the environment of every node in the tunnel, reduces the intensity of labour that traditional manual work detected, simultaneously with traditional adoption point type vibration sensor gather the inside whole data in tunnel and compare, the utility model discloses a vibration sensing optical cable, its data acquisition is more comprehensive, and data analysis security is higher.
Drawings
Fig. 1 is a structural diagram of a tunnel system with a vibration detection function according to the present invention;
FIG. 2 is an enlarged view of the portion A of FIG. 1 according to the present invention;
FIG. 3 is an enlarged view of a portion B of FIG. 1 according to the present invention;
fig. 4 is a cross-sectional view of a vibration sensing optical cable according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Referring to fig. 1, and as shown in fig. 2 and fig. 3, the tunnel system with vibration detection function of the present invention includes a tunnel body 10 and a vibration sensing optical cable 30, wherein the tunnel body 10 includes a tunnel top wall 11, a tunnel side wall 12 and a tunnel bottom surface 13, the tunnel top wall 11, the tunnel side wall 12 and the tunnel bottom surface 13 are enclosed to form a ring body, two rails 20 are installed on the tunnel bottom surface 13, and the tunnel bottom surface 13 on one side of one of the rails 20 is installed with the vibration sensing optical cable 30, and the tunnel side wall 12 is installed with the vibration sensing optical cable 30 near the tunnel bottom surface 13.
Wherein, vibration sensing optical cable 30 is through being equipped with recess 14 on tunnel bottom surface 13, vibration sensing optical cable 30 is buried underground in recess 14, and be filled with epoxy resin mortar layer 40 in recess 14, closely laminate vibration sensing optical cable 30 and tunnel bottom surface 13 through utilizing epoxy resin mortar layer 40, not only can guarantee the vibration conduction effect on its tunnel, thereby in order to ensure the accuracy of tunnel environment data acquisition, but also can play the effect of protection vibration sensing optical cable 30, prolong its life. During installation or modification, the installation and positioning can be realized only by digging the groove 14 on the tunnel bottom surface 13, then burying the vibration sensing optical cable 30, and adding the epoxy resin mortar layer 40 to fill the groove 14.
Referring to fig. 1 and 3, the vibration sensing optical cable 30 on the tunnel sidewall 12 of the present invention is fixed by the lock 41, and epoxy resin mortar is filled between the vibration sensing optical cable 30 and the tunnel sidewall 12.
Referring to fig. 4, the vibration sensing optical cable 30 of the present invention includes a protective sheath 31, three reinforcing cores 32 and three optical fibers 33, the reinforcing cores 32 and the optical fibers 33 are installed in the protective sheath 31, a loose tube 34 is installed outside the optical fibers 33, the centers of the three reinforcing cores 32 are disposed in an equilateral triangle, the optical fibers 33 are disposed at the center of the protective sheath 31, the outer edge surface of the loose tube 34 is engaged with the outer edge surface of the reinforcing core 32, and extends outwards from the bottom of the protective sheath 31 to form a step-shaped flexible adhesive 35, and the flexible adhesive 35 is bonded to the bottom of the protective sheath 31. During the use, utilize the formation triangle location relation of three reinforced cores 32 to the realization is to being used for installing and protecting the location of optic fibre 33 loose tube 34 and pressing from both sides tightly, works as the utility model discloses a distributed optical fibre 33 grating vibration sensor's inner structure when receiving external effort, can pass through protective sheath 31 on the one hand, reinforced core 32 and loose tube 34 reduce external effort, avoid optic fibre 33 impaired, simultaneously, when receiving external tensile effort, because optic fibre 33 is located the central point of protective sheath 31 and put, consequently, no matter be it when receiving the effort of any direction, all can reduce the effort to optic fibre 33 through the structure between optic fibre 33 outside and the protective sheath 31, guarantee that optic fibre 33 is not impaired.
Meanwhile, the vibration transmission optical cable is pre-fixed with the wall surface and the bottom of the groove 14 through the flexible adhesive colloid 35, so that the installation is convenient. Further, the utility model discloses be equipped with locator card foot 36 in the bottom of protective sheath 31, locator card foot 36 sets up the both sides at flexible viscidity colloid 35. When installing, will treat avoiding clearing up of installing and polish, then, fixed with treating the installation face through flexible viscidity colloid 35, utilize locator card foot 36 further to strengthen the relation between the two, guarantee epoxy mortar layer 40 when filling, the stability of vibration sensing optical cable 30 relative position.
The utility model discloses a tunnel system from area vibration detection function, through set up the vibration sensor optical cable on tunnel bottom surface 13 and tunnel lateral wall 12, can carry out real time monitoring to the environment of every node in the tunnel, reduce the intensity of labour that traditional artifical detected, simultaneously with traditional adoption point type vibration sensor gather tunnel inside whole a data compare, the utility model discloses a vibration sensing optical cable 30, its data acquisition is more comprehensive, and data analysis security is higher.
Finally, the method of the present application is only a preferred embodiment and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The tunnel system with the vibration detection function is characterized by comprising a tunnel body and a vibration sensing optical cable, wherein the tunnel body comprises a tunnel top wall, a tunnel side wall and a tunnel bottom surface, the tunnel top wall, the tunnel side wall and the tunnel bottom surface are surrounded to form an annular body, two rails arranged at intervals are arranged on the tunnel bottom surface, one rail is arranged on the tunnel bottom surface on one side of the other rail, the vibration sensing optical cable is arranged on the tunnel bottom surface, and the vibration sensing optical cable is arranged on the tunnel side wall close to the tunnel bottom surface.
2. The tunnel system with vibration detection function according to claim 1, wherein a groove is provided on the bottom surface of the tunnel, the vibration sensing optical cable is embedded in the groove, and an epoxy resin mortar layer is filled in the groove.
3. The tunnel system with vibration detection function as claimed in claim 1, wherein said vibration sensing optical cable on the side wall of said tunnel is fixed by a lock catch, and epoxy resin mortar is filled between said vibration sensing optical cable and said tunnel side wall.
4. The tunnel system with vibration detection function according to claim 1, wherein said vibration sensing optical cable includes a protective sheath, a plurality of reinforcing cores and three optical fibers, said reinforcing cores and said optical fibers are disposed in said protective sheath, said optical fibers are externally disposed with a plurality of loose tubes, the centers of said three reinforcing cores are disposed in an equilateral triangle, said optical fibers are disposed at the center of said protective sheath, and the outer edge of said loose tubes is engaged with the outer edge of said reinforcing cores.
5. The tunnel system with vibration detection function as claimed in claim 4, wherein the bottom of the protective sleeve is extended outwards to form a step-shaped flexible adhesive glue, and the flexible adhesive glue is adhered to the bottom of the protective sleeve.
6. The tunnel system with vibration detection function as claimed in claim 5, wherein the bottom of the protective sleeve is provided with positioning pins, and the positioning pins are disposed on two sides of the flexible adhesive glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020079594.0U CN210264826U (en) | 2020-01-15 | 2020-01-15 | Tunnel system with vibration detection function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020079594.0U CN210264826U (en) | 2020-01-15 | 2020-01-15 | Tunnel system with vibration detection function |
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| CN210264826U true CN210264826U (en) | 2020-04-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112393796A (en) * | 2020-11-18 | 2021-02-23 | 重庆工程职业技术学院 | Suspension tunnel vibration noise detection device |
| CN114323247A (en) * | 2021-12-29 | 2022-04-12 | 中铁第四勘察设计院集团有限公司 | Tunnel and vibration transverse propagation characteristic monitoring system and operation safety monitoring method thereof |
| CN114323247B (en) * | 2021-12-29 | 2024-05-17 | 中铁第四勘察设计院集团有限公司 | Tunnel and vibration transverse propagation characteristic monitoring system and operation safety monitoring method thereof |
-
2020
- 2020-01-15 CN CN202020079594.0U patent/CN210264826U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112393796A (en) * | 2020-11-18 | 2021-02-23 | 重庆工程职业技术学院 | Suspension tunnel vibration noise detection device |
| CN112393796B (en) * | 2020-11-18 | 2022-11-18 | 重庆工程职业技术学院 | Suspension tunnel vibration noise detection device |
| CN114323247A (en) * | 2021-12-29 | 2022-04-12 | 中铁第四勘察设计院集团有限公司 | Tunnel and vibration transverse propagation characteristic monitoring system and operation safety monitoring method thereof |
| CN114323247B (en) * | 2021-12-29 | 2024-05-17 | 中铁第四勘察设计院集团有限公司 | Tunnel and vibration transverse propagation characteristic monitoring system and operation safety monitoring method thereof |
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