CN110905824A - Tunnel slag discharging device, system and method - Google Patents
Tunnel slag discharging device, system and method Download PDFInfo
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- CN110905824A CN110905824A CN201911166342.XA CN201911166342A CN110905824A CN 110905824 A CN110905824 A CN 110905824A CN 201911166342 A CN201911166342 A CN 201911166342A CN 110905824 A CN110905824 A CN 110905824A
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- 239000002893 slag Substances 0.000 title claims abstract description 97
- 238000007599 discharging Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000005641 tunneling Effects 0.000 claims abstract description 14
- 238000010079 rubber tapping Methods 0.000 claims description 26
- 238000003860 storage Methods 0.000 claims description 18
- 239000002689 soil Substances 0.000 claims description 17
- 238000010276 construction Methods 0.000 description 20
- 238000012423 maintenance Methods 0.000 description 4
- 238000004904 shortening Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
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Abstract
The application provides a tunnel slag discharging device, a tunnel slag discharging system and a slag discharging method, wherein the tunnel slag discharging device comprises a continuous belt conveyor, a shield machine arranged in a tunnel and a turn-back belt conveyor arranged in an originating well, wherein the shield machine is used for excavating slag in the tunnel and outputting the excavated slag to the continuous belt conveyor; the continuous belt conveyor is provided with a horizontal conveying part and an inclined conveying part, the horizontal conveying part is horizontally arranged in the tunnel, the inclined conveying part is obliquely arranged in the starting well, and the horizontal conveying part is used for conveying the dregs excavated by the shield tunneling machine to the inclined conveying part; the inclined conveying part is used for transferring the dregs from the horizontal conveying part to the turning-back belt conveyor; the turning-back belt conveyor is obliquely arranged and the oblique direction of the turning-back belt conveyor is opposite to that of the oblique conveying part, and is used for conveying the slag from the oblique conveying part to the tail end of the oblique conveying part for discharging so as to finish slag discharging. The tunnel slag discharging device can be used in a tunnel with a small cross section, and has the advantages of safety, reliability, high transportation efficiency and the like.
Description
Technical Field
The application belongs to the technical field of tunnel construction, and particularly relates to a tunnel slag discharging device, a tunnel slag discharging system and a slag discharging method.
Background
With the vigorous construction of national subway, submarine tunnel and comprehensive pipe gallery projects, shield technology is applied and developed more and more, wherein during the tunneling process of the shield tunnel, the outward transportation of muck is an important link.
The existing shield tunnel deslagging modes mainly comprise the following two modes: one is trackless transportation, suitable for use in the tunnel with larger section, mainly use the dump truck to carry on the horizontal transport of the muck, the exit uses the side dump loader and slag-loading machine to carry on the vertical transport and slag tapping; the other is rail transportation, which is suitable for small section tunnel, and adopts horizontal transportation of rails and trolleybus laid in the tunnel and vertical transportation of winch inside the starting well for slag discharge.
However, the existing shield tunnel deslagging mode generally has the following problems:
1. the transportation efficiency is poor, so that the construction period is long: the existing shield machine can reach the propulsion speed of 5cm/min, and the slag discharge can reach 500m3The conventional trackless dump truck transportation mode or tramcar transportation mode needs manual operation in a large number of links, so that the automation degree is low, the tunneling speed of the shield machine cannot be met, the tunneling speed of the shield machine is limited, and the construction period is prolonged;
2. the potential safety hazard is big: safe production is an important index for judging whether engineering is successful, the problems of car collision and the like easily occur in the running process of a dump truck in a tunnel, and the problems of car sliding and the like easily occur in a tramcar in the tunnel with a larger gradient, so that great potential safety hazards are caused to engineering personnel and equipment in the tunnel;
3. cannot be used in tunnels with small cross sections: in the construction of a future urban comprehensive pipe gallery, tunnel construction with small cross sections is more and more, and a dump truck and a tramcar cannot adapt to the working condition due to the self volume limitation;
4. cannot be put into service before the originating well service configuration is completed: the existing shield tunnel muck rail transportation mode can be used only after the maintenance structure of an originating well is finished due to a winch adopted for vertical transportation, so that the construction period is further prolonged to a certain extent.
Disclosure of Invention
In order to overcome the defects in the prior art, the application aims to provide a tunnel slag discharging device, a tunnel slag discharging system and a slag discharging method, and aims to solve the technical problems that the existing shield tunnel slag discharging mode is long in construction period, large in potential safety hazard and incapable of being used in a tunnel with a small section.
The technical scheme adopted by the application for solving the technical problem is as follows:
a tunnel slag discharging device comprises a continuous belt conveyor, a shield machine arranged in a tunnel and a return belt conveyor arranged in an originating well, wherein,
the shield machine is used for excavating the muck in the tunnel and outputting the excavated muck to the continuous belt conveyor;
the continuous belt conveyor is provided with a horizontal conveying part and an inclined conveying part, the horizontal conveying part is horizontally arranged in the tunnel, the inclined conveying part is obliquely arranged in the starting well, and the horizontal conveying part is used for conveying the residue soil excavated by the shield tunneling machine to the inclined conveying part; the inclined conveying part is used for transferring the residue soil from the horizontal conveying part to the turning-back belt conveyor;
the turning-back belt conveyor is obliquely arranged and the oblique direction of the turning-back belt conveyor is opposite to that of the oblique conveying part, and is used for conveying the slag from the oblique conveying part to the tail end of the oblique conveying part for discharging so as to finish slag discharging.
Preferably, the tunnel mucking device further comprises a transverse belt conveyor arranged in the tunnel, the shield machine is arranged along the axis direction of the tunnel, and the horizontal conveying part is arranged close to the side wall of the tunnel, wherein the transverse belt conveyor is arranged on the working surface of the shield machine and is used for conveying muck excavated by the shield machine to the horizontal conveying part.
Preferably, the head end of the transverse belt conveyor is positioned below the soil discharging end of the shield machine, the head end of the horizontal conveying part is positioned below the tail end of the transverse belt conveyor, and the tail end of the inclined conveying part is positioned above the head end of the turning-back belt conveyor.
Preferably, the tunnel deslagging device further comprises a truss arranged in the originating well, and the inclined conveying part and the turn-back belt conveyor are erected in the originating well through the truss.
Preferably, the tunnel slag tapping device further comprises a belt storage bin arranged in the originating well, and the belt storage bin is arranged below the tail end of the inclined conveying part and used for storing the conveying belt on the continuous belt conveyor.
Preferably, the tunnel slag tapping device further comprises a tensioning device, wherein the tensioning device is arranged on the side of the belt storage bin and used for adjusting the tightness degree of a conveying belt on the continuous belt conveyor.
Preferably, the tensioning device is an electric winch.
The utility model provides a tunnel slag tapping system, is including setting up the dregs pond on the ground surface and aforementioned tunnel slag discharging device, and wherein, the dregs pond is located the terminal below of belt feeder of turning back.
Preferably, a suction head is arranged in the residue soil pool.
A tunnel deslagging method is applied to the tunnel deslagging system, and comprises the following steps:
when the shield machine is used for tunneling forwards, excavating the muck in the tunnel, and outputting the excavated muck to the continuous belt conveyor;
the continuous belt conveyor conveys the dregs out of the tunnel through the horizontal conveying part and conveys the dregs to the turning-back belt conveyor in the starting well through the inclined conveying part;
the returning belt conveyor conveys the slag into the slag pool to finish slag discharging.
Compared with the prior art, the beneficial effects of this application are:
the utility model provides a tunnel slag discharging device adopts the mode of a plurality of types belt feeder cooperation transportation, earlier utilize the dregs level that the horizontal transport portion in the continuous belt feeder was excavated the shield structure machine to transport out the tunnel, recycle the slope conveying portion that sets up in the well of originating and the belt feeder of turning back, transport out the dregs perpendicularly to the ground surface through the mode of turning back, the continuity transportation of dregs has been realized, the degree of automation is high, effectively solved current shield structure tunnel mode of slagging tap long term, the potential safety hazard is big, can't use and can't come into use before the well maintenance structure that originates accomplishes in the tunnel.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of an overall structure of a tunnel deslagging system in an embodiment of the present application;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a cross-sectional view of a tunnel according to an embodiment of the present application;
FIG. 4 is an enlarged schematic view at A of FIG. 1;
fig. 5 is an enlarged schematic view of fig. 1 at B.
Description of reference numerals:
1-tunnel, 2-shield machine, 3-transverse belt conveyor, 31-transverse belt conveyor driver, 41-horizontal conveying part, 42-inclined conveying part, 43-continuous belt conveyor driver, 203-second guide rope wheel, 44-conveying belt, 45-standard bracket, 5-fold-back belt conveyor, 51-fold-back belt conveyor driver, 6-slag pool, 7-initial well, 8-belt storage bin, 9-tensioning device, 10-truss, 11-ventilating duct, 12-pedestrian path and 13-rail locomotive.
Detailed Description
In order that the above objects, features and advantages of the present application can be more clearly understood, a detailed description of the present application will be given below with reference to the accompanying drawings and detailed description. In addition, the embodiments and features of the embodiments of the present application may be combined with each other without conflict. In the following description, numerous specific details are set forth to provide a thorough understanding of the present application, and the described embodiments are merely a subset of the embodiments of the present application, rather than all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
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. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
Referring to fig. 1 to 5, an embodiment of the present application provides a tunnel slag tapping device, including a continuous belt conveyor, a shield machine 2 disposed in a tunnel 1, and a turning-back belt conveyor 5 disposed in an originating well 7, where the shield machine 2 is configured to dig out slag in the tunnel 1 and output the dug-out slag to the continuous belt conveyor; the continuous belt conveyor is provided with a horizontal conveying part 41 and an inclined conveying part 42, wherein the horizontal conveying part 41 is horizontally arranged in the tunnel 1, the inclined conveying part 42 is obliquely arranged in the starting well 7, and the horizontal conveying part 41 is used for conveying the residue soil excavated by the shield tunneling machine 2 to the inclined conveying part 42; the inclined conveying part 42 is used for transferring the dregs from the horizontal conveying part 41 to the turning-back belt conveyor 5; the turning-back belt conveyor 5 is obliquely arranged and the oblique direction of the turning-back belt conveyor is opposite to that of the oblique conveying part 42, and is used for conveying the slag from the oblique conveying part 42 to the tail end of the turning-back belt conveyor for discharging so as to finish slag discharging; in some specific embodiments, the shield machine 2 includes a shield body (not shown), a screw conveyor (not shown) disposed in the shield body, and a cutter head (not shown) disposed in the head portion, the head end of the continuous belt conveyor may be disposed below the tail portion of the shield machine 2 (i.e., the unearthed end of the shield machine 2), specifically, the shield machine 2 excavates the muck through the cutter head when advancing forward, and the excavated muck is output from the unearthed end by the screw conveyor and falls onto the horizontal conveying portion 41 of the continuous belt conveyor, and the muck is horizontally conveyed out of the tunnel 1 by the horizontal conveying portion 41, and then the muck is conveyed vertically by the inclined conveying portion 42 and the turning-back belt conveyor 5 of the continuous belt conveyor from the starting well 7 to the ground surface, thereby completing the transporting work of the muck out of the tunnel 1.
In this embodiment, the tunnel slag discharging device adopts a mode of a plurality of types of belt conveyors for transportation, firstly, the horizontal conveying part 41 in the continuous belt conveyor is used for horizontally conveying the slag excavated by the shield machine 2 out of the tunnel 1, and then the inclined conveying part 42 and the turning-back belt conveyor 5 arranged in the starting well 7 are used for vertically conveying the slag out to the ground surface in a turning-back mode, thereby realizing the continuous transportation of the slag, having high automation degree and high transportation efficiency, effectively shortening the construction period, meanwhile, the outward transportation of the slag is realized by the belt conveyors, compared with the existing transportation mode of a trackless dump truck or a tramcar, the volume of the continuous belt conveyor is adapted to the structure of the tunnel 1, and the problems of collision, sliding and the like do not exist, therefore, the safety is greatly improved, the slag can be used in the tunnel 1 with a small section, and in addition, the vertical transportation of the slag does not need to use a winch, and can therefore be put into service before the service structure of the originating well 7 is completed, so that the construction period can be further shortened.
Referring to fig. 1 to 5, in an alternative embodiment, the tunnel slag tapping device further includes a traverse belt conveyor 3 disposed in the tunnel 1, the shield machine 2 is disposed along the axial direction of the tunnel 1, and a horizontal conveying part 41 is disposed near the side wall of the tunnel 1, wherein the traverse belt conveyor 3 is disposed on the working surface (i.e., the tunnel surface) of the shield machine 2 for conveying the slag excavated by the shield machine 2 to the horizontal conveying part 41.
In this embodiment, generally, since the shield machine 2 is generally disposed along the axial direction of the tunnel 1 (i.e. the middle position of the cross section of the tunnel 1) in order to improve the efficiency of the tunnel 1 construction in the actual tunnel 1 construction, and at the same time, the rail vehicle 13 is required to be disposed along the axial direction of the tunnel 1 in the tunnel 1 to transport various materials and tools required for the tunnel 1 construction (for example, a pedestrian passageway 12 for people to walk and a ventilation duct 11 for ensuring the air flow circulation in the tunnel 1 are further provided in the tunnel 1), for this situation, in order to not hinder the normal operation of the shield machine 2 and the rail vehicle 13, the continuous belt vehicle needs to be disposed close to the side wall of the tunnel 1, at this time, in order to ensure that the transportation of the muck is not affected by the positional relationship between the shield machine 2 and the continuous belt vehicle, so that the muck excavated by the shield machine 2 can still be horizontally transported out of the track through the horizontal conveying part 41 of the, therefore, the transverse belt conveyor 3 is additionally arranged on the working face of the shield machine 2, and the residue soil output by the shield machine 2 is transversely moved to the continuous belt conveyor through the transverse belt conveyor 3, so that the residue soil can still be transported continuously, different tunnel 1 construction conditions can be met, and the adaptability of the working conditions is enhanced.
Referring to fig. 1 to 5, in an alternative embodiment, the aforementioned tunnel tapping apparatus further comprises a truss 10 disposed in the originating shaft 7, an inclined conveyor 42, the turning-back belt conveyor 5 is erected in the starting well 7 through a truss 10, illustratively, a steel structure truss 10 is adopted as a support structure of the inclined conveying part 42 and the turning-back belt conveyor 5, the number of the trusses 10 is multiple, a continuous belt conveyor driver 43 for providing conveying power for the whole continuous belt conveyor is arranged at the tail end of the inclined conveying part 42 and is installed on the truss 10, a turning-back belt conveyor driver 51 for providing conveying power for the turning-back belt conveyor 5 is arranged at the head end of the turning-back belt conveyor 5 and is installed on the truss 10, a transverse belt conveyor 3 driver 31 for providing conveying power for the transverse belt conveyor 3 is installed on the bottom inner wall of the tunnel 1, and a horizontal conveying part 41 of the continuous belt conveyor is installed on the side wall of the tunnel 1 through.
Referring to fig. 1 to 5, in an alternative embodiment, the head end of the traverse belt conveyor 3 is located below the soil discharging end of the shield tunneling machine 2, the head end of the horizontal conveying part 41 is located below the tail end of the traverse belt conveyor 3, and the tail end of the inclined conveying part 42 is located above the head end of the turn-back belt conveyor 5.
In the embodiment, specifically, when the shield machine 2 is pushed forward, the slag soil is excavated through the cutter head, the excavated slag soil is output from the soil-excavating end by the screw conveyor and falls onto the transverse belt conveyor 3, after the transverse belt conveyor 3 conveys the slag to the tail end, the dregs fall onto the horizontal conveying part 41 of the continuous belt conveyor and are horizontally conveyed out of the tunnel 1 by the horizontal conveying part 41, the dregs are conveyed out of the tunnel 1 and then are vertically conveyed along the inclined conveying part 42 of the continuous belt conveyor, when the inclined conveying part 42 conveys the dregs on the inclined conveying part to the tail end of the inclined conveying part, the dregs fall onto the turn-back belt conveyor 5 and are vertically conveyed by the turn-back belt conveyor 5, after the return belt conveyor 5 conveys the dregs on the return belt conveyor to the tail end of the return belt conveyor, the dregs fall onto the preset ground surface, so that dregs are discharged, the whole conveying process of the dregs is full-automatic, and the conveying efficiency is high.
Referring to fig. 1 to 5, in an alternative embodiment, the tunnel slag tapping device further includes a belt storage bin 8 disposed in the originating well 7 (the belt storage bin 8 stores a conveying belt 44), the belt storage bin 8 is disposed below the end of the inclined conveying part 42 and is used for storing the conveying belt 44 on the continuous belt, the conveying belt 44 on the continuous belt exemplarily comes out at the end (i.e., the end of the inclined conveying part 42) and turns back through the belt storage bin 8, and the belt storage bin 8 exemplarily adopts a vertical belt storage bin 8.
In this embodiment, as the shield machine 2 advances forward, the tunnel 1 is dug deeper and deeper, so the length of the conveying belt 44 required by the continuous belt conveyor needs to be increased, when the conveying belt 44 needs to be continuously extended by the continuous belt conveyor, the worker only needs to manually extend the conveying belt 44 in the belt storage bin 8, and the whole conveying belt 44 does not need to be replaced, which is very convenient.
Referring to fig. 1 to 5, in an alternative embodiment, the tunnel slag tapping device further includes a tensioning device 9, the tensioning device 9 is disposed at a side portion of the belt storage bin 8 and is used for adjusting the tightness degree of the conveying belt 44 on the continuous belt conveyor, for example, an electric winch is used as the tensioning device 9, and of course, other types of tensioning devices 9 may be used as long as the use requirement can be met, and no particular limitation is imposed on the tensioning device 9; the conveyor belt 44 on the continuous belt conveyor is illustratively discharged at its end and is folded back through the belt magazine 8 and the tensioning device 9.
In this embodiment, after the continuous belt conveyor works for a long time or when the length of the conveying belt 44 on the continuous belt conveyor changes greatly, the conveying belt 44 on the continuous belt conveyor may be too tight or too loose, and by arranging the tensioning device 9 beside the belt storage bin 8, the conveying belt 44 on the continuous belt conveyor can be conveniently adjusted to a proper tightness degree by using the tensioning device 9, so that the conveying belt on the continuous belt conveyor can be ensured to run stably.
Referring to fig. 1 to 5, the present application further provides a tunnel slag tapping system, which includes a slag pool 6 disposed on the ground surface and the aforementioned tunnel slag tapping device, wherein the slag pool 6 is located below the end of the turning belt conveyor 5, and a suction head (not shown in the drawings) is disposed in the slag pool 6.
In this embodiment, the working process of the tunnel deslagging system is as follows:
when the shield machine 2 is pushed forwards, the residue soil is excavated out through the cutter head, the excavated residue soil is output from the soil outlet end by the screw conveyor and falls onto the transverse belt conveyor 3, the transverse belt conveyor 3 conveys the residue to the tail end, the dregs fall onto the horizontal conveying part 41 of the continuous belt conveyor and are horizontally conveyed out of the tunnel 1 by the horizontal conveying part 41, the dregs are conveyed out of the tunnel 1 and then are vertically conveyed along the inclined conveying part 42 of the continuous belt conveyor, when the inclined conveying part 42 conveys the dregs on the inclined conveying part to the tail end of the inclined conveying part, the dregs fall onto the turn-back belt conveyor 5 and are vertically conveyed by the turn-back belt conveyor 5, when the return belt conveyor 5 conveys the residue soil on the return belt conveyor to the tail end of the return belt conveyor, the residue soil falls into the residue soil pool 6 for storage, thereby finishing slag discharging, and subsequently loading the slag into a transport vehicle through a suction head in the slag pool 6 and transporting the slag to a designated place.
In the embodiment, the tunnel slag tapping system adopts a mode of a plurality of types of belt conveyors for transportation in a matching way, firstly, the slag excavated by the shield machine 2 is transversely moved to the horizontal conveying part 41 of the continuous belt conveyor by the transverse belt conveyor 3, the slag excavated by the shield machine 2 is horizontally transported out of the tunnel 1 by the horizontal conveying part 41, and then, the slag is vertically transported out to the slag pool 6 on the ground surface by the inclined conveying part 42 and the turning-back belt conveyor 5 arranged in the starting well 7 in a turning-back way for storage, thereby realizing the continuous transportation of the slag, having high automation degree, high transportation efficiency, effectively shortening the construction period, simultaneously, the outward transportation of the slag is realized by the belt conveyors, compared with the prior trackless dumper transportation mode or tramcar transportation mode, the volume of the continuous belt conveyor is adapted to the structure of the tunnel 1, and the problems of collision, sliding and the like do not exist, therefore, the safety is greatly improved and the slag tapping system can be used in the tunnel 1 with small section, in addition, the vertical transportation of the dregs does not need a winch, so that the dregs can be put into use before the maintenance structure of the originating well 7 is completed, and the construction period can be further shortened.
The embodiment of the application further provides a tunnel deslagging method, which is applied to the tunnel deslagging system of any one of the embodiments, and the method comprises the following steps:
s1, excavating the muck in the tunnel 1 when the shield machine 2 is tunneling forwards, and outputting the excavated muck to the continuous belt conveyor;
s2, the continuous belt conveyor conveys the dregs out of the tunnel 1 through the horizontal conveying part 41 and transfers the dregs to the return belt conveyor 5 in the starting well 7 through the inclined conveying part 42;
and S3, conveying the slag to the slag pool 6 by the turning-back belt conveyor 5 to finish slag discharging.
In the implementation, the tunnel slag tapping method adopts a mode of matching and transporting a plurality of types of belt conveyors, firstly, the horizontal conveying part 41 in the continuous belt conveyor is utilized to horizontally convey the slag excavated by the shield machine 2 out of the tunnel 1, and then the inclined conveying part 42 arranged in the starting well 7 and the turning-back belt conveyor 5 are utilized to vertically convey the slag out to the ground surface in a turning-back mode, thereby realizing the continuous transportation of the slag, having high automation degree and high transportation efficiency, effectively shortening the construction period, meanwhile, the outward transportation of the slag is realized by the belt conveyors, compared with the prior trackless dumper transportation mode or tramcar transportation mode, the volume of the continuous belt conveyor is adapted to the structure of the tunnel 1, and the problems of collision, sliding and the like do not exist, therefore, the safety is greatly improved, the slag tapping method can be used in the tunnel 1 with small section, and in addition, the vertical transportation of the slag does not need to use a winch, and can therefore be put into service before the service structure of the originating well 7 is completed, so that the construction period can be further shortened.
In summary, the present application has the following advantages:
1. the method can improve the conveying efficiency of the muck, meet the tunneling speed of the existing shield tunneling machine 2, reduce the construction period delay caused by muck conveying and accelerate the tunneling speed of the tunnel 1.
2. The system can be put into use before the maintenance structure of the originating well 7 is completed, and the construction period is shortened.
3. Can realize the continuous transportation of the muck, improve the muck transportation speed, reduce the occurrence of safety accidents in the shield tunnel 1 and ensure the safety of engineering personnel and engineering equipment in the tunnel 1
4. Can be used in a small-section tunnel 1.
5. The automation degree is high, and the reliability is strong.
The foregoing is only a preferred embodiment of the present application and is not intended to limit the present application in any way, so that any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present application will still fall within the scope of the present application.
Claims (10)
1. A tunnel slag discharging device is characterized by comprising a continuous belt conveyor, a shield machine arranged in a tunnel and a return belt conveyor arranged in an originating well, wherein,
the shield machine is used for excavating the muck in the tunnel and outputting the excavated muck to the continuous belt conveyor;
the continuous belt conveyor is provided with a horizontal conveying part and an inclined conveying part, the horizontal conveying part is horizontally arranged in the tunnel, the inclined conveying part is obliquely arranged in the starting well, and the horizontal conveying part is used for conveying the slag excavated by the shield machine to the inclined conveying part; the inclined conveying part is used for transferring the dregs from the horizontal conveying part to the turning-back belt conveyor;
the turning-back belt conveyor is obliquely arranged and the inclined direction of the turning-back belt conveyor is opposite to that of the inclined conveying part, and is used for conveying the slag from the inclined conveying part to the tail end of the inclined conveying part for discharging so as to finish slag discharging.
2. The tunnel slag tapping device according to claim 1, further comprising a cross conveyor disposed in the tunnel, wherein the shield machine is disposed along an axial direction of the tunnel, and the horizontal conveying part is disposed near a sidewall of the tunnel, wherein the cross conveyor is disposed on a working face of the shield machine for transferring the slag excavated by the shield machine to the horizontal conveying part.
3. The tunnel slag tapping device of claim 2, wherein the head end of the cross conveyor is located below the soil discharging end of the shield tunneling machine, the head end of the horizontal conveying part is located below the tail end of the cross conveyor, and the tail end of the inclined conveying part is located above the head end of the turn-back conveyor.
4. The tunnel tapping device according to claim 1, further comprising a truss frame arranged in the originating well, wherein the inclined conveying part and the return belt conveyor are erected in the originating well through the truss frame.
5. The tunnel slag tapping device according to any one of claims 1 to 4, further comprising a belt storage bin disposed in the originating well, the belt storage bin being disposed below the end of the inclined conveying section for storing the conveying belt on the continuous belt conveyor.
6. The tunnel slag tapping device according to claim 5, further comprising a tensioning device arranged at the side of the belt storage bin for adjusting the tightness of the conveying belt on the continuous belt conveyor.
7. The tunnel tapping device according to claim 6, wherein the tensioning device is an electric winch.
8. A tunnel slag tapping system, comprising a slag pit provided on the ground surface and the tunnel slag tapping device of any one of claims 1-7, wherein the slag pit is located below the end of the return belt conveyor.
9. The tunnel slag tapping system of claim 8, wherein a suction head is provided in the slag basin.
10. A tunnel tapping method applied to the tunnel tapping system of claim 8, wherein the method comprises:
when the shield machine is used for tunneling forwards, excavating the muck in the tunnel, and outputting the excavated muck to the continuous belt conveyor;
the continuous belt conveyor conveys the dregs out of the tunnel through a horizontal conveying part and conveys the dregs to a turning-back belt conveyor in the starting well through an inclined conveying part;
and the turning-back belt conveyor conveys the slag into the slag pool to finish slag discharging.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113264337A (en) * | 2021-05-10 | 2021-08-17 | 中铁十六局集团北京轨道交通工程建设有限公司 | Belt conveying device applied to tunnel construction, tunnel slag discharging system and method |
| CN113356877A (en) * | 2021-07-02 | 2021-09-07 | 中国华冶科工集团有限公司 | Inclined shaft slag discharging device and method |
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| JP2019039258A (en) * | 2017-08-28 | 2019-03-14 | 株式会社フジタ | Telescopic arch center type secondary lining method of tunnel |
| JP2019039252A (en) * | 2017-08-28 | 2019-03-14 | 佐藤工業株式会社 | Muck transport and ventilation facility in tunnel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113264337A (en) * | 2021-05-10 | 2021-08-17 | 中铁十六局集团北京轨道交通工程建设有限公司 | Belt conveying device applied to tunnel construction, tunnel slag discharging system and method |
| CN113356877A (en) * | 2021-07-02 | 2021-09-07 | 中国华冶科工集团有限公司 | Inclined shaft slag discharging device and method |
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Application publication date: 20200324 |