CN209959288U - Tunnel escape pipeline - Google Patents
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- CN209959288U CN209959288U CN201920845856.7U CN201920845856U CN209959288U CN 209959288 U CN209959288 U CN 209959288U CN 201920845856 U CN201920845856 U CN 201920845856U CN 209959288 U CN209959288 U CN 209959288U
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Abstract
The embodiment of the application provides a tunnel pipeline of fleing, and relates to the field of tunnel construction. The tunnel escape pipeline comprises a base pipe body, a first end and a second end; the telescopic pipe body is sleeved at the second end of the base pipe body and is integrally telescopic relative to the second end; each telescopic pipe body comprises an extension section and a reserved section; the adjacent telescopic pipe bodies stretch relatively, and when in a contraction state, the reserved section of each telescopic pipe body is kept outside the pipe body accommodating the telescopic pipe body; the first moving device is arranged on the base pipe body and used for supporting and moving the base pipe body; the second moving device is arranged on each reserved section and used for supporting the telescopic pipe body where the reserved section is located and driving the stretching section on the telescopic pipe body to stretch. The tunnel escape pipeline not only improves the carrying and installing efficiency of the tunnel escape pipeline and ensures the installing quality, but also can be suitable for surrounding rock construction paragraphs of different levels.
Description
Technical Field
The utility model relates to a tunnel construction field, in particular to tunnel pipeline of fleing.
Background
Along with the rapid development of railways and highways, the scale and difficulty of tunnel construction are increased, and tunnel collapse accidents are also caused continuously. However, at present, because the construction operation in the tunnel is limited, the transportation and installation of the escape pipeline of the tunnel are basically carried out manually. The escape pipeline is heavy and is carried and installed manually, and the efficiency is very low. Therefore, it is necessary to develop a tunnel escape duct which can greatly improve the transportation efficiency and the installation accuracy.
SUMMERY OF THE UTILITY MODEL
The application provides a tunnel pipeline of fleing, this tunnel pipeline of fleing can avoid leaning on artifical transport and installation entirely for transport and installation rate improve the installation accuracy, and can be applicable to different tunnel construction conditions.
The embodiment of the application provides a tunnel pipeline of fleing includes: the device comprises a base pipe body, at least one telescopic pipe body, a first moving device and a second moving device.
The base pipe body comprises a first end and a second end; at least one telescopic pipe body is sleeved at the second end of the base pipe body and is integrally telescopic relative to the second end; each telescopic pipe body comprises an extension section and a reserved section; the adjacent telescopic pipe bodies stretch relatively, and when in a contraction state, the reserved section of each telescopic pipe body is kept outside the pipe body accommodating the telescopic pipe body; the first moving device is arranged on the base pipe body and used for supporting and moving the base pipe body; and the second moving device is arranged on each reserved section and used for supporting the telescopic pipe body where the reserved section is located and driving the stretching section on the telescopic pipe body to stretch.
In the implementation process, the second moving device can drive the telescopic pipe body to realize telescopic movement, so that the tunnel escape pipeline is installed, and the coaxiality of the tunnel escape pipeline can be ensured by the installation mode. The first moving device and the second moving device can drive the whole tunnel escape pipeline to move, and manual carrying of the tunnel escape pipeline is avoided. The telescopic pipe body can be integrally telescopic relative to the base pipe body, the adjacent telescopic pipe bodies can also be relatively telescopic, and the tunnel escape pipeline is convenient for constructors to carry and install due to the telescopic design of the tunnel escape pipeline. Compare the pipeline of fleing in artifical transport installation tunnel among the prior art, its installation randomness is great, and the installation offset distance is also great, especially tunnel invert construction paragraph, and it is great because of the invert excavation causes the ground difference in height, and the axiality of pipeline of fleing can't be guaranteed at all to artifical installation, and the telescopic installation of the pipeline of fleing in tunnel in this application has not only improved the installation effectiveness, and mutual cover is established between the body in addition, has guaranteed the axiality of escaping the pipeline of tunnel, has improved the installation accuracy.
In a possible embodiment, a first positioning hole is formed in a pipe wall of the base pipe body close to the second end; a second positioning hole is formed in the pipe wall of the extending section of each telescopic pipe body; and a third positioning hole is formed in the wall of the reserved section of each telescopic pipe body.
In the implementation process, the positioning holes are formed in the base pipe body and the telescopic pipe body, on one hand, the preset telescopic length of the telescopic pipe body is determined, on the other hand, the base pipe body and the telescopic pipe body are fixed after the telescopic pipe body reaches the preset telescopic length and the tunnel escape pipeline is installed, the mutual movement between the pipe bodies and the falling of the telescopic pipe body are prevented, and the stability of the tunnel escape pipeline is improved.
In a possible embodiment, the number of the first positioning holes is one; the extending section of each telescopic pipe body is provided with a plurality of second positioning holes which are arranged along a straight line, and the reserved section of each telescopic pipe body is provided with a third positioning hole; when the telescopic pipe body moves to a preset position relative to the base pipe body, the second positioning hole is overlapped with the axis of the first positioning hole; when the telescopic pipe body moves to a preset position relative to the previous telescopic pipe body, the axis of the second positioning hole of the telescopic pipe body is superposed with the axis of the third positioning hole of the previous telescopic pipe body.
In the implementation process, the extension section of each telescopic pipe body is provided with a plurality of second positioning holes which are arranged along a straight line, and different second positioning holes on each telescopic pipe body determine different preset telescopic lengths of the telescopic pipe body. When the first positioning hole on the base pipe body is superposed with the axle center of a different second positioning hole on the adjacent telescopic pipe body, the telescopic pipe body reaches different preset telescopic lengths; when the third positioning hole of the previous telescopic pipe body is superposed with the axes of different second positioning holes on the next adjacent telescopic pipe body, the next telescopic pipe body reaches different preset telescopic lengths. The design of a plurality of second locating holes on every flexible body makes constructor can confirm that flexible body reachs different predetermined flexible length according to the demand of the safe step distance of difference, and this tunnel pipeline of fleing can be applicable to the country rock construction paragraph of different grades promptly, has reduced the change of pipeline of fleing in the work progress, has improved the efficiency of construction.
In a possible implementation manner, a sleeve is mounted at the second end of the base pipe body and at one end of each telescopic pipe body close to the reserved section, and the sleeve is provided with a fourth positioning hole; and a fifth positioning hole matched with the fourth positioning hole is formed in the extending section of each telescopic pipe body.
In the implementation process, the sleeve, the fourth positioning hole and the fifth positioning hole are arranged for determining the preset telescopic length of the telescopic pipe body and fixing the pipe bodies to prevent the pipe bodies from moving or sliding; on the other hand, when the telescopic pipe body is in the extension in-process, if constructor fails to stop the mobile device in time so that the telescopic pipe body misses a preset telescopic length and slips from the previous telescopic pipe body, the sleeve of the previous telescopic pipe body can accept one distance of the telescopic pipe body, when the telescopic pipe body slips from the previous telescopic pipe body, the telescopic pipe body can collide with the sleeve to generate sound, and the sound can remind the constructor that the telescopic pipe body slips into the sleeve, so that the constructor can stop the mobile device in time to continue to move.
In a possible embodiment, the number of the fifth positioning holes on each telescopic tube body is multiple, and the multiple fifth positioning holes are arranged along a straight line.
In the implementation process, the different fifth positioning holes in each telescopic pipe body represent different preset telescopic lengths of the telescopic pipe body. Constructors can confirm that the telescopic pipe body reaches different preset telescopic lengths according to the requirements of different safety steps, namely, the tunnel escape pipeline can be suitable for surrounding rock construction paragraphs of different levels, the replacement of the escape pipeline in the construction process is reduced, and the construction efficiency is improved.
In a possible embodiment, the first moving means has two, respectively installed at the first end and the second end of the base pipe body; the second mobile device has the same structure as the first mobile device.
In the implementation process, the first moving device is respectively installed at the first end and the second end of the base pipe body, so that on one hand, the tunnel escape pipeline can be balanced, and the installation stability of the tunnel escape pipeline is higher; on the other hand, the tunnel escape pipeline can be more stable and faster in the moving process.
In a possible embodiment, the first moving device comprises a support frame and a driving device arranged on the support frame, and a travelling mechanism in transmission connection with the driving device is arranged on the support frame; the support frame is detachably connected to the base pipe body.
In the implementation process, the self-locking device can be arranged on the travelling mechanism and can adopt self-locking tires, and when the tunnel escape pipeline reaches the designated placement position, the travelling mechanism is immediately locked through the self-locking tires, so that the tunnel escape pipeline is prevented from sliding, and the tunnel escape pipeline is ensured to be in a safe state. The support frame is detachably connected with the base pipe body, and when the mobile device is damaged, the mobile device can be detached at any time for maintenance or replacement.
In a possible embodiment, the support frame further comprises fastening means; the fastening device comprises an upper fastening sleeve, a lower fastening sleeve and a first connecting plate, wherein the upper fastening sleeve and the lower fastening sleeve are provided with a closed ring which is sleeved with the base pipe body, and the inner surface of the closed ring is attached to the outer surface of the base pipe body; the first connecting plate is arranged at the bottom of the lower fastening sleeve and connected with the support frame.
In the implementation process, the mobile device is sleeved on the basic pipe body through the fastening device detachably, the upper fastening sleeve and the lower fastening sleeve of the fastening device are connected into a closed ring through the fastening bolts, the diameter of the inner circle of the closed ring is slightly smaller than the outer surface of the basic pipe body, the pressure between the inner surface of the closed ring and the outer surface of the basic pipe body can be adjusted through rotating the fastening bolts, the mobile device is connected with the basic pipe in a fastening mode, and the mobile device is prevented from slipping between the mobile device and the basic pipe body to influence the movement of a tunnel escape pipeline.
In one possible embodiment, the support frame comprises a second connecting plate, a third connecting plate and a plurality of lifting rods positioned between the second connecting plate and the third connecting plate; and a plurality of damping springs are connected between the first connecting plate and the second connecting plate.
In the above-mentioned realization process, can ensure through the lift height of adjusting the lifter that the axiality of each body keeps unanimous, but damping spring greatly reduced flees the deformation of pipeline, ensures that the pipeline of fleing is current smooth and easy, reduces personnel's injury.
In a possible embodiment, a telescopic fixing sleeve is sleeved on the outer part of each damping spring.
In the implementation process, the fixing sleeve comprises an upper fixing sleeve and a lower fixing sleeve, the upper end of the upper fixing sleeve is fixedly connected with the first connecting plate, the lower end of the lower fixing sleeve is fixedly connected with the second connecting plate, and the upper fixing sleeve and the lower fixing sleeve can stretch out and draw back relatively. The fixed sleeve is sleeved outside the damping spring, so that the damping spring can be prevented from generating transverse deviation, and the damping spring is prevented from deforming.
In a possible embodiment, the first end of the foundation pipe body is provided with a connector for engaging another foundation pipe body.
In the implementation process, when tunnel surrounding rock is better, the safe step distance between the tunnel face and the two linings is increased, and when the single tunnel escape pipeline extends to the longest and cannot meet the construction operation requirement, the two tunnel escape pipelines can be connected through the connecting piece, so that the length of the tunnel escape pipeline is lengthened, and the requirement of the safe step distance between the tunnel face and the two linings is met. The connecting piece can adopt a flange plate, and the bolt holes of the flange plate are firmly connected by bolts, so that the safety and reliability of tunnel escape are ensured.
Drawings
Fig. 1 is a drawing illustrating a contracted state of a tunnel escape duct according to an embodiment of the present invention;
fig. 2 is a diagram illustrating an extended state of a tunnel escape duct according to an embodiment of the present application;
fig. 3 is an extended state view of a tunnel escape duct including a sleeve according to an embodiment of the present application;
fig. 4 is a detailed view of a sleeve of a tunnel escape pipeline according to an embodiment of the present application;
fig. 5 is a structural diagram of a first moving device of a tunnel escape pipeline according to an embodiment of the present application.
Icon: 100-a base pipe body, 110-a first end, 120-a second end, 200-a telescopic pipe body, 210-an extension section, 220-a reserved section, 300-a first moving device, 400-a second moving device, 130-a first positioning hole, 230-a second positioning hole, 240-a third positioning hole, 500-a sleeve, 510-a fourth positioning hole, 250-a fifth positioning hole, 310-a support frame, 330-a driving device, 340-a traveling mechanism, 320-a fastening device, 321-an upper fastening sleeve, 322-a lower fastening sleeve, 323-a first connecting plate, 324-a closed ring, 350-a second connecting plate, 360-a third connecting plate, 370-a lifting rod, 380-a damping spring, 390-a fixing sleeve and 140-a connecting piece.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
In tunnel construction, a tunnel construction section includes a secondary lining, an inverted arch, and a tunnel face. According to the specification requirement of the arrangement of the escape facilities in the accident, the distance between one end of the tunnel escape pipeline close to the trenchless face and the trenchless face is less than 10 meters, and the length of the tunnel escape pipeline extending into the constructed secondary lining is more than 5 meters. Under the surrounding rock conditions of different levels, the non-excavated tunnel face is different from the safety step pitch of the secondary lining, the better the surrounding rock conditions are, the larger the safety step pitch is, and the longer the arrangement length of the tunnel escape pipeline is. According to the requirements of drawings and specifications: in the V-grade and VI-grade surrounding rock construction sections, the safety step distance between the non-excavated tunnel face and the secondary lining is less than or equal to 70 m; in the VI-level surrounding rock construction section, the safe step distance between the unearthed tunnel face and the secondary lining is less than or equal to 90 m; in the III-level surrounding rock construction section, the safe step distance between the unearthed tunnel face and the secondary lining is less than or equal to 120 m; and in the I and II level surrounding rock construction sections, the safe step distance between the non-excavated tunnel face and the secondary lining is less than or equal to 200 m.
Referring to fig. 1 and 2, fig. 1 is a contracted state view of a tunnel escape duct according to an embodiment of the present application, and fig. 2 is an extended state view of the tunnel escape duct according to the embodiment of the present application. The escape tube for tunnel in this embodiment includes a base tube 100, a telescopic tube 200, a first moving device 300 and a second moving device 400. The base pipe body 100 includes a first end 110 and a second end; at least one telescopic tube 200 sleeved at the second end of the base tube 100 and integrally telescopic relative to the second end; each telescopic tube body 200 comprises an extension section 210 and a reserved section 220; the adjacent telescopic pipes 200 are relatively telescopic, and when in a contracted state, the reserved section 220 of each telescopic pipe 200 is kept outside the pipe body accommodating the telescopic pipe 200; the first moving device 300 is installed on the base pipe 100 to support and move the base pipe 100; the second moving device 400 disposed on each reserved section 220 is used for supporting the telescopic tube 200 where the reserved section 220 is located and driving the extending section 210 on the telescopic tube 200 to extend and retract.
In the above implementation process, the telescopic pipe body 200 can be integrally telescopic relative to the base pipe body 100, and the adjacent telescopic pipe bodies 200 can also be relatively telescopic, so that the telescopic design of the tunnel escape pipeline facilitates the transportation and installation of the tunnel escape pipeline by constructors. When the tunnel escape pipeline is carried or stored, constructors can enable the tunnel escape pipeline to be in a contracted state, so that the carrying efficiency can be improved, the manual loss can be reduced, and the storage space can be saved; when the tunnel escape pipeline is installed, a constructor drives the tunnel escape pipeline to reach a designated position through the first mobile device 300 and the second mobile device 400, so that the first end 110 of the basic pipeline is close to the trenchless tunnel face within 10 meters or the first end 110 of the basic pipeline at least extends into the constructed secondary lining for 5 meters, after the position of the basic pipeline is determined, the basic pipeline is kept still, the second mobile device 400 is driven, the second mobile device 400 drives the telescopic pipeline to extend to a preset telescopic length, and the tunnel escape pipeline is installed. Can know by the installation of the above-mentioned pipeline of fleing from the tunnel pipeline, compare the artifical transport installation tunnel pipeline of fleing in prior art, its installation randomness is great, the installation offset distance is also great, especially tunnel invert construction paragraph, it is great because of the invert excavation causes the ground difference in height, the axiality of pipeline of fleing from can't be guaranteed at all in artifical installation, the telescopic installation of the tunnel pipeline of fleing in this application has not only improved the installation effectiveness, and establish each other overlapping between the body, the axiality of pipeline of fleing from the tunnel has been guaranteed, the installation accuracy is improved.
In one possible embodiment, the base pipe body 100 has a first positioning hole 130 formed on a wall thereof near the second end; a second positioning hole 230 is formed on the pipe wall of the extending section 210 of each telescopic pipe body 200; a third positioning hole 240 is formed in the wall of the reserved section 220 of each telescopic tube 200.
In the above implementation process, on one hand, the positioning holes are formed in the base pipe 100 and the telescopic pipe 200 in order to determine the predetermined telescopic length of the telescopic pipe 200, when the second positioning hole 230 of the telescopic pipe 200 adjacent to the base pipe 100 coincides with the axis of the first positioning hole 130 of the base pipe 100, the telescopic pipe 200 reaches the predetermined telescopic length, and then the first positioning hole 130 and the second positioning hole 230 are connected by a fixing pin to fix the telescopic pipe 200; when the second positioning hole 230 of the next telescopic tube 200 is overlapped with the third positioning hole 240 of the previous telescopic tube 200 adjacent thereto, the next telescopic tube 200 reaches a predetermined telescopic length. On the other hand, after the telescopic tube 200 reaches the predetermined telescopic length and the tunnel escape duct is installed, the base tube 100 and the telescopic tube 200 are fixed, so that the mutual movement between the tubes and the falling of the telescopic tube 200 are prevented, and the stability of the tunnel escape duct is improved.
In one possible embodiment, the number of the first positioning holes 130 is one; the extending section 210 of each telescopic tube 200 is provided with a plurality of second positioning holes 230 arranged along a straight line, and the reserved section 220 of each telescopic tube 200 is provided with a third positioning hole 240; when the telescopic tube 200 moves to a predetermined position relative to the base tube 100, the second positioning hole 230 coincides with the axis of the first positioning hole 130; when the telescopic tube 200 moves to a predetermined position relative to the previous telescopic tube 200, the axis of the second positioning hole 230 of the telescopic tube 200 coincides with the axis of the third positioning hole 240 of the previous telescopic tube 200.
In the above implementation process, the extending section 210 of each telescopic tube 200 is provided with a plurality of second positioning holes 230 arranged along a straight line, and different second positioning holes on each telescopic tube 200 determine different predetermined telescopic lengths of the telescopic tube 200. The design of a plurality of second locating holes 230 on every flexible body 200 makes constructor can confirm that flexible body 200 reachs different predetermined flexible length according to the demand of the safe step distance of difference, and this tunnel escape duct can be applicable to the country rock construction paragraph of different grades promptly, has reduced the change of pipeline of fleing in the work progress, has improved the efficiency of construction.
In a possible embodiment, please refer to fig. 3 and 4, fig. 3 is a drawing showing an extended state of a tunnel escape duct including a sleeve according to an embodiment of the present application, and fig. 4 is a detailed view of the sleeve of the tunnel escape duct according to the embodiment of the present application. A sleeve 500 is mounted at the second end of the base pipe body 100 and at one end of each telescopic pipe body 200 close to the reserved section 220, and the sleeve 500 is provided with a fourth positioning hole 510; the extending section 210 of each telescopic tube 200 is provided with a fifth positioning hole 250 matching with the fourth positioning hole 510.
In the implementation process, the sleeve 500, the fourth positioning hole 510 and the fifth positioning hole 250 are arranged, on one hand, to determine the predetermined telescopic length of the telescopic tube 200 and fix the tubes to prevent the tubes from moving or sliding off each other; on the other hand, when telescopic tube 200 is at the extension in-process, if constructor fails in time to stop the mobile device and makes telescopic tube 200 miss predetermined flexible length from the preceding telescopic tube 200 when landing in, the sleeve 500 of preceding telescopic tube 200 can accept this telescopic tube 200 one section distance, can collide with the sound with sleeve 500 when this telescopic tube 200 is followed the landing in the preceding telescopic tube 200, this sound can remind constructor this telescopic tube 200 in the landing to sleeve 500, so that constructor can in time stop the mobile device and continue to remove.
In one possible embodiment, the number of the fifth positioning holes 250 on each telescopic tube 200 is multiple, and the multiple fifth positioning holes 250 are arranged along a straight line.
In the above implementation, the different fifth positioning holes 250 of each telescopic tube 200 represent different predetermined telescopic lengths of the telescopic tube 200. Constructors can confirm that the telescopic pipe body 200 reaches different preset telescopic lengths according to the requirements of different safety steps, namely, the tunnel escape pipeline can be suitable for surrounding rock construction paragraphs of different levels, the replacement of the escape pipeline in the construction process is reduced, and the construction efficiency is improved.
In a possible implementation manner, please refer to fig. 5, wherein fig. 5 is a structural diagram of a first moving device 300 of a tunnel escape pipeline according to an embodiment of the present application. The first moving devices 300 are two and are respectively installed at the first end 110 and the second end of the base pipe body 100; the second mobile device 400 has the same structure as the first mobile device 300.
In the implementation process, the first moving device 300 is respectively installed at the first end 110 and the second end of the base pipe body 100, so that on one hand, the tunnel escape duct can be balanced, and the installation stability of the tunnel escape duct is higher; on the other hand, the tunnel escape pipeline can be more stable and faster in the moving process.
In a possible embodiment, the first moving device 300 includes a supporting frame 310 and a driving device 330 mounted on the supporting frame 310, and a traveling mechanism 340 in transmission connection with the driving device 330 is mounted on the supporting frame 310; the support bracket 310 is detachably connected to the base pipe body 100.
In the implementation process, the walking mechanism 340 can be provided with a self-locking device, the self-locking device can adopt a self-locking tire, and after the tunnel escape pipeline reaches the designated placement position, the walking mechanism 340 is immediately locked through the self-locking tire, so that the tunnel escape pipeline is prevented from sliding, and the tunnel escape pipeline is ensured to be in a safe state. The support frame 310 is detachably connected to the base pipe 100, so that when the mobile device is damaged, the mobile device can be detached at any time for maintenance or replacement.
In a possible embodiment, the support frame 310 further comprises a fastening device 320; the fastening device 320 comprises an upper fastening sleeve 321, a lower fastening sleeve 322 and a first connecting plate 323, wherein the upper fastening sleeve 321 and the lower fastening sleeve 322 are provided with a closed ring 324 sleeved with the base pipe body 100, and the inner surface of the closed ring 324 is attached to the outer surface of the base pipe body 100; the first coupling plate 323 is disposed at the bottom of the lower fastening sleeve 322 and coupled to the support bracket 310.
In the implementation process, the moving device is detachably sleeved on the base pipe body 100 through the fastening device 320, the upper fastening sleeve 321 and the lower fastening sleeve 322 of the fastening device 320 are connected into a closed ring 324 through the fastening bolt, the diameter of the inner circle of the closed ring 324 is slightly smaller than the outer surface of the base pipe body 100, and the pressure between the inner surface of the closed ring 324 and the outer surface of the base pipe body 100 can be adjusted by rotating the fastening bolt, so that the moving device is tightly connected with the base pipe body, and the moving of the tunnel escape pipeline is prevented from being influenced due to the fact that the moving device slides relative to the base pipe body 100.
In the above implementation process, as shown in fig. 3 and fig. 4, when the sleeves 500 are installed at the second end of the base pipe body 100 and at one end of each telescopic pipe body 200 close to the reserved section 220, the fastening device 320 of the first moving device 300 at the second end of the base pipe body 100 can be sleeved on the sleeve 500, and the fastening device 320 of the second moving device 400 at the reserved section 220 of the telescopic pipe body 200 can also be sleeved on the sleeve 500.
In one possible embodiment, the support bracket 310 includes a second connecting plate 350, a third connecting plate 360, and a plurality of lift rods 370 between the second connecting plate 350 and the third connecting plate 360; a plurality of damper springs 380 are connected between the first connecting plate 323 and the second connecting plate 350.
In the implementation process, the coaxiality of all the pipe bodies can be kept consistent by adjusting the lifting height of the lifting rod 370, the deformation of the escape pipeline can be greatly reduced by the damping spring 380, the smooth passage of the escape pipeline is ensured, and the injury of personnel is reduced.
In one possible embodiment, a retractable retaining sleeve 390 is sleeved on the outside of each damper spring 380.
In the above implementation process, the fixing sleeve 390 includes an upper fixing sleeve 500 and a lower fixing sleeve 500, the upper end of the upper fixing sleeve 500 is fixedly connected to the first connecting plate 323, the lower end of the lower fixing sleeve 500 is fixedly connected to the second connecting plate 350, and the upper and lower fixing sleeves 500 are relatively retractable. The fixing sleeve 500 is sleeved outside the damping spring 380 to prevent the damping spring 380 from generating lateral deviation and prevent the damping spring 380 from deforming.
In one possible embodiment, the first end 110 of the base pipe body 100 is provided with a connector 140 for engaging another base pipe body 100.
In the implementation process, when the tunnel surrounding rock is better, the safe step distance between the tunnel face and the two linings is increased, and the single tunnel escape pipeline is extended to the longest and cannot meet the construction operation requirement, the two tunnel escape pipelines can be connected through the connecting piece 140, so that the length of the tunnel escape pipeline is lengthened, and the requirement of the safe step distance between the tunnel face and the two linings is met. The connecting member 140 may be a flange plate, and bolt holes of the flange plate are firmly connected by bolts, so as to ensure safe and reliable escape from the tunnel.
Claims (10)
1. A tunnel escape duct, comprising:
a base pipe body including a first end and a second end;
the telescopic pipe body is sleeved at the second end of the base pipe body and is integrally telescopic relative to the second end; each telescopic pipe body comprises an extension section and a reserved section; the adjacent telescopic pipe bodies stretch relatively, and when in a contraction state, the reserved section of each telescopic pipe body is kept outside the pipe body accommodating the telescopic pipe body;
the first moving device is arranged on the base pipe body and used for supporting and moving the base pipe body;
and the second moving device is arranged on each reserved section and used for supporting the telescopic pipe body where the reserved section is located and driving the stretching section on the telescopic pipe body to stretch.
2. The escape tunnel according to claim 1, wherein a first positioning hole is formed in a wall of the base pipe body near the second end;
a second positioning hole is formed in the pipe wall of the extending section of each telescopic pipe body; and a third positioning hole is formed in the pipe wall of the reserved section of each telescopic pipe body.
3. The escape tube for a tunnel of claim 2, wherein the number of the first positioning holes is one; the extending section of each telescopic pipe body is provided with a plurality of second positioning holes which are arranged along a straight line, and the reserved section of each telescopic pipe body is provided with a third positioning hole;
when the telescopic pipe body moves to a preset position relative to the base pipe body, the second positioning hole is overlapped with the axis of the first positioning hole;
when the telescopic pipe body moves to a preset position relative to the previous telescopic pipe body, the axis of the second positioning hole of the telescopic pipe body is superposed with the axis of the third positioning hole of the previous telescopic pipe body.
4. The tunnel escape pipeline according to claim 1, wherein a sleeve is mounted at the second end of the base pipe body and at an end of each telescopic pipe body close to the reserved section, and the sleeve is provided with a fourth positioning hole;
and a fifth positioning hole matched with the fourth positioning hole is formed in the extending section of each telescopic pipe body.
5. The escape tube according to claim 4, wherein the number of the fifth positioning holes of each of the telescopic tubes is plural, and the plural fifth positioning holes are arranged along a straight line.
6. The escape tunnel according to claim 1, wherein the first moving means has two moving means installed at the first end and the second end of the base pipe, respectively;
the first moving device comprises a support frame and a driving device arranged on the support frame, and a traveling mechanism in transmission connection with the driving device is arranged on the support frame; the supporting frame is detachably connected to the base pipe body;
the second mobile device has the same structure as the first mobile device.
7. The escape duct of claim 6, wherein the support frame further comprises a fastening device; the fastening device comprises an upper fastening sleeve, a lower fastening sleeve and a first connecting plate, wherein the upper fastening sleeve and the lower fastening sleeve are provided with a closed ring which is sleeved with the base pipe body, and the inner surface of the closed ring is attached to the outer surface of the base pipe body; the first connecting plate is arranged at the bottom of the lower fastening sleeve and connected with the support frame.
8. The escape duct of claim 7, wherein the support frame includes a second connecting plate, a third connecting plate, and a plurality of lifting rods between the second connecting plate and the third connecting plate; and a plurality of damping springs are connected between the first connecting plate and the second connecting plate.
9. The escape tunnel according to claim 8, wherein a retractable fixing sleeve is sleeved on an outer portion of each of the damping springs.
10. The escape tunnel according to claim 1, wherein the first end of the base pipe is provided with a connector for engaging another base pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920845856.7U CN209959288U (en) | 2019-06-05 | 2019-06-05 | Tunnel escape pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920845856.7U CN209959288U (en) | 2019-06-05 | 2019-06-05 | Tunnel escape pipeline |
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| CN209959288U true CN209959288U (en) | 2020-01-17 |
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| CN201920845856.7U Active CN209959288U (en) | 2019-06-05 | 2019-06-05 | Tunnel escape pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067593A (en) * | 2019-06-05 | 2019-07-30 | 中交一公局海威工程建设有限公司 | Tunnel pipe for escaping |
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2019
- 2019-06-05 CN CN201920845856.7U patent/CN209959288U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067593A (en) * | 2019-06-05 | 2019-07-30 | 中交一公局海威工程建设有限公司 | Tunnel pipe for escaping |
| CN110067593B (en) * | 2019-06-05 | 2024-03-22 | 中交一公局海威工程建设有限公司 | Tunnel escape pipeline |
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