CN111276915B - Tunnel construction is with monitoring components and parts cable protection device - Google Patents
Tunnel construction is with monitoring components and parts cable protection device Download PDFInfo
- Publication number
- CN111276915B CN111276915B CN202010173648.4A CN202010173648A CN111276915B CN 111276915 B CN111276915 B CN 111276915B CN 202010173648 A CN202010173648 A CN 202010173648A CN 111276915 B CN111276915 B CN 111276915B
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- Prior art keywords
- cable
- monitoring component
- tunnel
- device body
- tunnel construction
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0406—Details thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/4481—Arrangements or adaptations for driving the reel or the material
- B65H75/4486—Electric motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/34—Handled filamentary material electric cords or electric power cables
Abstract
The invention discloses a monitoring component cable protection device for tunnel construction, which comprises a device body positioned inside a protective concrete layer of a monitoring component, wherein a containing cavity is arranged inside the device body, a cable inlet is formed in one side of the containing cavity, and a cable outlet is formed in one side of the containing cavity, which faces the ground of a tunnel; a cable retracting and releasing mechanism is arranged in the accommodating cavity and used for retracting the cable; according to the invention, the inner body of the device is arranged in the protective concrete layer of the monitoring component, and the cable retraction and extension mechanism is arranged in the device body, so that when the data acquisition instrument acquires data of the monitoring component, the cable can be released into the device body, and when the data acquisition instrument does not need to acquire the data, the cable is retracted into the device body, the cable is protected during tunnel excavation and blasting, the cable is prevented from being damaged, and the timely and accurate acquired state of the tunnel is ensured.
Description
[ technical field ] A method for producing a semiconductor device
The invention belongs to the technical field of tunnel construction protection, and particularly relates to a monitoring component cable protection device for tunnel construction.
[ background of the invention ]
In order to ensure the safety of tunnel excavation construction, monitoring components and parts need to be installed in the surrounding rock or the primary support layer so as to evaluate the influence of tunnel excavation on the stability of the surrounding rock. After the monitoring components are fixed on the surface of the surrounding rock, the monitoring components are sealed by spraying concrete, the cables of the components are led out of the concrete layer, and the cables of the components are led out to be connected to a data acquisition instrument, so that the monitoring components can be read.
However, when the cable for detecting the components is connected with an external data acquisition instrument, the cable led out from the concrete layer can be hung in the air until the connection part with the acquisition instrument, and the cable is frequently influenced by vibration, broken stone impact and the like in the process of tunnel excavation blasting, so that the transmission effect of the cable is influenced, and even the cable is broken. If only part of the outgoing cables are damaged, the outgoing cables can be used continuously in a wiring mode; if the lead-out cable is damaged completely, the monitoring components and parts can be completely disabled, the construction progress of the tunnel is seriously affected, and great hidden danger can be brought to construction safety.
[ summary of the invention ]
The invention aims to provide a monitoring component cable protection device for tunnel construction, which is used for preventing a connecting cable of a monitoring component in a tunnel from being damaged and ensuring timely and accurate data acquisition of the monitoring component.
The invention adopts the following technical scheme: a cable protection device for monitoring components for tunnel construction comprises a device body located inside a concrete protection layer of the monitoring components, wherein a containing cavity is arranged inside the device body, a cable inlet is formed in one side of the containing cavity, and a cable outlet is formed in one side, facing the ground of a tunnel, of the containing cavity;
hold and be provided with cable winding and unwinding mechanism in the cavity, cable winding and unwinding mechanism is used for:
and before blasting the tunnel, withdrawing the cable into the accommodating cavity through the cable outlet.
Further, cable jack includes servo motor, and servo motor's power take off end is connected with the reel, and the reel is used for winding the cable on it under servo motor's drive, and then makes the cable withdraw accommodation space.
Further, the reel is connected with the cable through a protection wire.
Further, the cable retracting mechanism comprises a cylinder, a piston of the cylinder faces the cable outlet, the cable is fixed on the piston, and the piston is used for moving up and down to drive the cable to retract or release the cable outlet.
Furthermore, the servo motor or the air cylinder is connected with a control board, the control board is wirelessly connected to an external wireless control terminal, and the control board is used for controlling the servo motor or the air cylinder to execute corresponding actions according to instructions of the wireless control terminal.
Furthermore, the free end of the protective wire or the piston is connected with a plug, and the plug is used for sealing the outlet of the cable when the cable is retracted.
Further, the cable outlet comprises an extension pipe, the outlet end of which extends out of or is flush with the cover concrete layer.
Furthermore, a clamping groove is formed in the connecting position of the device body and the cable inlet line and used for clamping the monitoring component.
Furthermore, a threading hole is formed between the cable inlet and the clamping groove.
Furthermore, one end of the plug, which faces the cable outlet, is in a truncated cone shape.
The invention has the beneficial effects that: according to the invention, the inner body of the device is arranged in the protective concrete layer of the monitoring component, and the cable retraction and extension mechanism is arranged in the device body, so that when the data acquisition instrument acquires data of the monitoring component, the cable can be released into the device body, and when the data acquisition instrument does not need to acquire the data, the cable is retracted into the device body, the cable is protected during tunnel excavation and blasting, the cable is prevented from being damaged, and the timely and accurate acquired state of the tunnel is ensured.
[ description of the drawings ]
FIG. 1 is a schematic view of a protection device according to an embodiment of the present invention;
FIG. 2 is a schematic view of another usage state of the protection device in the embodiment of the present invention;
fig. 3 is a schematic view of a protection device according to another embodiment of the present invention.
Wherein: 1. monitoring the component; 2. a device body; 3. threading holes; 4. a cable; 5. an accommodating cavity; 6. a servo motor; 7. a control panel; 8. a protection line; 9. an extension pipe; 10. balancing weight; 11. a connecting member; 12. a plug; 13. a cylinder; 14. a piston.
[ detailed description ] embodiments
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The embodiment of the invention provides a monitoring component cable protection device for tunnel construction, which comprises a device body 2, wherein the device body 2 is positioned inside a concrete protection layer, and the concrete protection layer is a concrete layer covering the outside of the monitoring component 1, as shown in figure 1. The monitoring component 1 mainly comprises an earth pressure gauge, a strain gauge and an anchor rod shaft dynamometer, all belong to vibrating wire type monitoring components and adopt a vibrating wire type indicator to acquire monitoring data. The monitoring components are mainly used for monitoring the surrounding rock pressure, the concrete internal force and the anchor rod axial force of the tunnel and used for evaluating the safety of the tunnel structure in the excavation process.
The inside cavity 5 that holds that is provided with of device body 2, the one side that holds cavity 5 is provided with the cable entry, holds cavity 5 and is provided with the cable export towards one side on tunnel ground.
A cable retracting and releasing mechanism is arranged in the accommodating cavity 5 and used for:
before the tunnel explodes, withdraw cable 4 to inside accommodating cavity 5 through the cable export, and then prevent that the tunnel blasting from causing the damage to the cable.
When the data acquisition instrument is used for acquiring the data of the monitoring component 1, the cable 4 is released through the cable outlet by the cable releasing and releasing mechanism so that the cable 4 is connected with the data acquisition instrument; when the data acquisition instrument is not used for acquiring the data of the monitoring component 1 and the tunnel is not blasted, the cable 4 is generally not damaged, and the cable 4 can be wound and released according to actual conditions.
According to the invention, the inner body of the device is arranged in the protective concrete layer of the monitoring component, and the cable retraction and extension mechanism is arranged in the device body, so that when the data acquisition instrument acquires data of the monitoring component, the cable can be released into the device body, and when the data acquisition instrument does not need to acquire the data, the cable is retracted into the device body, the cable is protected during tunnel excavation and blasting, the cable is prevented from being damaged, and the timely and accurate acquired state of the tunnel is ensured.
In this embodiment, set up device body 2 inside protective concrete layer, can not receive the impact of tunnel blasting disintegrating slag by the protection device body on the one hand, moreover, through accomodate cable 4 the inside cavity 5 that holds of the device body in, also realized the effective protection to cable 4.
Because one end of the cable 4 is connected to the monitoring component 1, a cable inlet is arranged on one side of the accommodating cavity 5, so that the cable 4 enters the accommodating space 5 through the inlet and extends out of a cable outlet passing through the accommodating space 5. In addition, since the cable is pulled by gravity in this embodiment, an excessive number of fittings are prevented from being added for convenience of use, so that the cable outlet is directed toward the ground of the tunnel, and thus, when the cable is paid out, the cable can be paid out from the accommodating space by the gravity of the cable itself or other counter weights.
In the present embodiment, the cable retracting mechanism includes a servo motor 6, and a reel is connected to a power output end of the servo motor 6, and the reel is used for winding the cable 4 thereon under the driving of the servo motor 6, so as to retract the cable 4 into the accommodating space 5. Specifically, the reel passes through protection line 8 and is connected with cable 4, and protection line 8 and cable 4 can twine together and form the pencil, also can set up the connecting piece on this pencil, like ribbon, sticky tape or thin iron wire etc. to make the firm in connection of the two, and then can drive cable 4 winding on the reel through protection line 8 when servo motor 6 drives the reel pivoted, thereby realize accomodating of cable 4.
Certainly, the cable outlet is towards the ground, so the cable 4 and the protection wire 8 are towards the ground, so a counter weight is fixed on the protection wire 8, and the counter weight can drive the protection wire 8 to move downwards and extend out of the cable outlet when the servo motor 6 rotates to pay off the cable. In addition, a counterweight 10 is also mounted on the cable 4 in this embodiment to control the paying out of the cable 4.
With respect to the cable retracting mechanism, in another embodiment of the present invention, as shown in fig. 3, the cable retracting mechanism comprises a cylinder 13, a piston 14 of the cylinder 13 is directed toward the cable exit, and the cable 4 is fixed to the piston 14 near a free end of the piston 14, and in this embodiment, the diameter of the piston is selected to be smaller than the diameter of the extension pipe 9, so that the cable 4 is stored in a gap between the piston 14 and the extension pipe 9 without causing damage to the cable 4 due to the movement of the piston. The fixing mode can be selected from gluing or fixing in other modes. The piston 14 is adapted to move up and down to retract or pay out the cable 4 from the cable outlet. The possibility of connecting the plug at the free end of the piston by means of a connecting element 11, as can be seen in connection with figure 3, makes it possible, by means of this embodiment, to reduce the overall complexity of the device without having to take account of the counterweight of the cable 4 and without having to resort to a reel.
As a possible implementation manner, the servo motor 6 or the air cylinder 13 is electrically connected with the control board 7, the control board 7 is wirelessly connected to an external wireless control terminal, and the control board 7 is used for controlling the servo motor 6 or the air cylinder 13 to execute corresponding actions according to instructions of the wireless control terminal. Control of the servo motor 6 or the air cylinder 13 is carried out through the control panel 7, and the control panel 7 can be correspondingly provided with a wireless signal receiving and sending device, so that signal transmission is realized, the device can be remotely controlled, and convenience of the device is improved. Further, a device for supplying energy such as a power supply is built in the device, and the servo motor 6 or the cylinder 13 is operated.
More specifically, the free end of the protection wire 8 or the piston 14 is connected with a plug 12, and the plug 12 is used for sealing the outlet of the cable when the cable 4 is retracted, so as to prevent other sundries from affecting the safety of the device. Specifically, one end of the plug 12 facing the cable outlet is truncated cone-shaped, and the truncated cone-shaped end of the plug 12 can conveniently enter the end of the extension pipe 9, so that the extension pipe 9 can be effectively sealed. The end of the protective wire 8 can be directly fixed to the plug 12, and the end of the piston 14 can be connected to the plug 12 by a connector 11, thereby preventing the piston 14 from being damaged. The connecting piece 11 can be specifically designed according to the field condition, and can be a welding block or other materials.
In one implementation of the embodiment of the invention, the cable outlet comprises an extension tube 9, the outlet end of the extension tube 9 protruding out of or being flush with the cover concrete layer. The extension tube 9 can be used to connect the cable 4 to the external space, and can also be used to effectively increase the space of the accommodating space 5, so that the accommodating space can accommodate the cable 4, the cylinder 13, etc. For subsequent maintenance convenience, the extension pipe 9 and the receiving space 5 may be designed to be detachable.
In order to further promote the protection effect of cable 4, be provided with the draw-in groove on the device body 2 in this embodiment, with cable entry line junction, the draw-in groove is used for joint monitoring components and parts 1. So, will monitor 1 lug connection of components and parts to the device body 2 on, can avoid cable 4 by directly burying in the protective concrete layer for cable 4 is whole all to be located device body 2, safe and reliable more. More specifically, can set up the jack on the draw-in groove, be connected with monitoring components and parts 1 through the jack, with 4 remaining jack connections of cable, can further increase the security of device body.
In addition, in order to prevent external water vapor and the like from penetrating into the device body from the clamping groove to affect the safety of the cable 4, the threading hole 3 is formed between the accommodating cavity 5 and the clamping groove, and the invasion of the external water vapor, dust and the like is prevented by arranging the relatively narrow threading hole 3.
The invention can effectively protect the cable 4 and prevent the cable 4 from being damaged in explosion, thereby ensuring that the parameters of the monitoring component 1 can be read smoothly. The signal transmission of the control panel 7 is completely separated from the signal transmission of the monitoring component 1, so that the safety of the parameters of the monitoring component 1 is improved, and the method is suitable for some confidential projects. Moreover, the device is simple in design and low in cost, compared with a monitoring component 1 of thousands of yuan, the cost of the device is not more than dozens of yuan, and the device is simple to operate, strong in practicability and good in effect.
In the use of this device, when the parameter of monitoring components and parts 1 need to be gathered, as shown in fig. 1, pay out cable 4, be connected to the appearance with the free end of cable 4 and can carry out data acquisition. After data acquisition is finished, as shown in fig. 2, the cable 4 is withdrawn, tunnel construction can be normally carried out, and tunnel construction is not affected.
Claims (7)
1. The cable protection device for the monitoring component for tunnel construction is characterized by comprising a device body (2), wherein the device body (2) is positioned inside a concrete protective layer, and the concrete protective layer is a concrete layer covering the outside of the monitoring component (1);
an accommodating cavity (5) is arranged in the device body (2), a cable inlet is formed in one side of the accommodating cavity (5), and a cable outlet is formed in one side, facing the tunnel ground, of the accommodating cavity (5);
a cable retracting and releasing mechanism is arranged in the accommodating cavity (5) and is used for:
before blasting the tunnel, withdrawing the cable (4) inside the containment chamber (5) through said cable exit;
the cable retracting and releasing mechanism comprises a cylinder (13), a piston (14) of the cylinder (13) faces to the cable outlet, the cable (4) is fixed on the piston (14), and the piston (14) is used for moving up and down to drive the cable (4) to retract or release the cable outlet.
2. The monitoring component cable protection device for tunnel construction as claimed in claim 1, wherein the cylinders (13) are connected with control boards (7), the control boards (7) are wirelessly connected to an external wireless control terminal, and the control boards (7) are used for controlling the cylinders (13) to execute corresponding actions according to instructions of the wireless control terminal.
3. A monitoring component cable protection device for tunnel construction according to claim 1, characterized in that a plug (12) is connected to the free end of the piston (14), and the plug (12) is used for closing the cable outlet when the cable (4) is retracted.
4. A tunnel construction monitoring component cable protection device according to claim 3, wherein the cable outlet comprises an extension pipe (9), and an outlet end of the extension pipe (9) extends out of the concrete protection layer or is flush with the concrete protection layer.
5. The device for protecting the cable of the monitoring component for tunnel construction as claimed in claim 3, wherein a clamping groove is arranged on the device body (2) at the connection position with the cable inlet line, and the clamping groove is used for clamping the monitoring component (1).
6. The device for protecting the cable of the monitoring component for tunnel construction as claimed in claim 5, wherein a threading hole (3) is formed between the cable inlet and the clamping groove.
7. The device for protecting the monitoring component cable for tunnel construction as claimed in claim 3, wherein an end of the plug (12) facing the cable outlet is truncated cone-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010173648.4A CN111276915B (en) | 2020-03-13 | 2020-03-13 | Tunnel construction is with monitoring components and parts cable protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010173648.4A CN111276915B (en) | 2020-03-13 | 2020-03-13 | Tunnel construction is with monitoring components and parts cable protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111276915A CN111276915A (en) | 2020-06-12 |
| CN111276915B true CN111276915B (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010173648.4A Active CN111276915B (en) | 2020-03-13 | 2020-03-13 | Tunnel construction is with monitoring components and parts cable protection device |
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| CN (1) | CN111276915B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101363322A (en) * | 2008-09-26 | 2009-02-11 | 中铁十二局集团第二工程有限公司 | Construction method for changing single line to be double in tunnel |
| CN110778329A (en) * | 2019-11-01 | 2020-02-11 | 中铁隧道局集团有限公司 | Tunnel segment measuring element wire sealing device and using method thereof |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2925343B1 (en) * | 2007-12-19 | 2010-01-15 | Freyssinet | MATTRESS FOR FIRE PROTECTION, ASSOCIATED METHOD. |
| CN101368843A (en) * | 2008-09-25 | 2009-02-18 | 上海交通大学 | Rock formation vibration-testing apparatus and method |
| CN101552431B (en) * | 2008-12-26 | 2010-10-27 | 辽宁鑫丰矿电设备制造有限公司 | Self-moving comprehensive mining power-distribution equipment vehicle |
| CN102535527A (en) * | 2010-12-14 | 2012-07-04 | 上海市基础工程有限公司 | Testing device and method of breast wall slurry pressure during pore-forming construction of cast-in-situ bored pile |
| CN103273447B (en) * | 2013-06-19 | 2015-07-01 | 吉林大学 | Universal precision numerical control support vertical column |
| CN104807962B (en) * | 2015-04-21 | 2016-04-06 | 浙江科技学院 | A kind of compound portable Tunnel Blasting gas dirt real-time monitoring device |
| CN106498989B (en) * | 2016-11-07 | 2018-11-09 | 东南大学 | Cheat bottom pile foundation level carrying detection sensor conductive wire protection apparatus and method |
| CN110454229A (en) * | 2019-07-17 | 2019-11-15 | 天地科技股份有限公司 | A kind of mining Microseismic monitoring system |
| CN110514184B (en) * | 2019-08-30 | 2021-07-20 | 中铁隧道局集团有限公司 | Simple device for measuring deep stratum deformation and measuring method thereof |
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2020
- 2020-03-13 CN CN202010173648.4A patent/CN111276915B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101363322A (en) * | 2008-09-26 | 2009-02-11 | 中铁十二局集团第二工程有限公司 | Construction method for changing single line to be double in tunnel |
| CN110778329A (en) * | 2019-11-01 | 2020-02-11 | 中铁隧道局集团有限公司 | Tunnel segment measuring element wire sealing device and using method thereof |
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| CN111276915A (en) | 2020-06-12 |
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