WO2018082714A1 - 隧道联络通道用盾构机及其联络通道掘进方法 - Google Patents
隧道联络通道用盾构机及其联络通道掘进方法 Download PDFInfo
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- WO2018082714A1 WO2018082714A1 PCT/CN2017/112316 CN2017112316W WO2018082714A1 WO 2018082714 A1 WO2018082714 A1 WO 2018082714A1 CN 2017112316 W CN2017112316 W CN 2017112316W WO 2018082714 A1 WO2018082714 A1 WO 2018082714A1
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- Prior art keywords
- shield
- tunnel
- receiving end
- communication channel
- supporting
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- 230000005641 tunneling Effects 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 53
- 238000009412 basement excavation Methods 0.000 claims abstract description 45
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000004891 communication Methods 0.000 claims description 76
- 239000002893 slag Substances 0.000 claims description 13
- 239000004519 grease Substances 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 238000003032 molecular docking Methods 0.000 claims description 8
- 230000006872 improvement Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 12
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
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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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0607—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield being provided with devices for lining the tunnel, e.g. shuttering
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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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0635—Tail sealing means, e.g. used as end shuttering
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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
- E21D9/122—Working or loading platforms
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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
- E21D9/124—Helical conveying means therefor
Definitions
- the invention belongs to the technical field of tunnel construction equipment, and particularly relates to a shield tunneling machine for a tunnel communication channel and a tunneling method thereof.
- the subway tunnel or railway tunnel is a two-lane tunnel, and the distance between the two tunnels is relatively short.
- the traditional communication channel construction is carried out by means of ground reinforcement, water stop and manual excavation. There are complex settlement control, high safety risk, low construction efficiency and high cost. It is urgent to find a safe, reliable and economical mechanized and intelligent equipment to complete the construction of the communication channel.
- the shield machine is a highly mechanized and automated excavation lining complete set of equipment that integrates mechanical, electronic, hydraulic, laser and control technologies using a shield method.
- Shield technology does not require extensive demolition, no need to excavate the ground, no noise on the ground, no dust, no disturbance to the people, and all use automatic control, the project progress is fast, therefore, it can reduce engineering pollution and save a lot of money. Construction technology for engineering investment.
- the shield machine itself is a complete set of complex equipment for collecting machines, electricity and liquids. It is necessary to design suitable starting table and reaction frame when starting, and to fix the end face and fix the reaction support. A specific starting shaft is required and the space requirements are high. How to simplify the shield machine system, make a special starting platform, and react to the force frame. It can be assembled outside the tunnel, and the tunneling in the tunnel is still blank.
- the object of the present invention is to provide a shield tunneling machine and its communication channel for tunnel communication channel with reasonable structural design, compact structure, stable equipment construction, high efficiency, effective control of ground subsidence and reduced construction risk. method.
- the utility model relates to a shield machine for a tunnel communication channel, which comprises an originating end supporting walking platform and a receiving end supporting walking platform and a shield machine main body respectively arranged on the material transport rails of the two main tunnels, respectively arranged at the originating end supporting walking platform And a reaction support bracket and a main tunnel support assembly on the corresponding main tunnel segment, and an originating end seal assembly and a receiving end seal assembly respectively disposed at the originating end and the receiving end of the communication passage,
- the starting end support walking platform is provided with a segment lifting assembly, and the pushing support assembly is arranged between the reaction supporting frame and the shield machine main body.
- the originating end seal assembly and the receiving end seal assembly both include a main tunnel fixed at the end of the communication passage a sealing sleeve on the segment, two annular sealing brushes disposed on the inner wall of the sealing sleeve, and a grease injection hole formed on the wall of the sealing sleeve between the two sealing brushes, the receiving end
- the sealing assembly further includes a receiving end cover and a pressure maintaining system disposed on the sealing sleeve.
- the end connecting plate and the sealing ring are disposed between the inner end of the sealing sleeve and the main tunnel segment.
- the main body of the shield machine comprises a shield body, a front shield of the shield body, a main drive system and a drive motor disposed in the shield body, a cutter head for setting a front end of the shield body and connecting with the main drive system, and a cutter disc disposed in the shield body.
- the slag discharging screw conveyor is matched and matched with the communication channel supporting tube piece at the rear end portion of the shield body, and the jacking boring assembly supports the tube piece by pushing the connecting channel of the back end of the shield body to complete the excavation operation;
- the cutter head is a spoke type structure, and a corresponding excavation cutter is arranged on the cutter beam at the front part of the cutter head.
- the jacking boring assembly is a plurality of sets of jacking cylinders disposed on the reaction support frame.
- the main tunnel support assembly comprises a main tunnel segment, a grid-like staggered arrangement and a force grid frame disposed parallel to the reaction force support frame, and a ring disposed between the force grid frame and the main tunnel segment
- the reinforcing beam beam, the reaction force support frame and the force grid frame are matched and supported, and a force bearing panel is arranged on the force grid frame corresponding to the reaction force support frame, and the annular reinforcing beam beam and the main
- the tunnel segments are matched and connected, and the force-retaining grid is provided to provide the device with push-pull reaction support.
- the originating end support walking platform and the receiving end support walking platform are respectively provided with a docking support frame of a limited support shield machine main body, and the segment lifting assembly comprises a lifting frame and is arranged on the starting end supporting walking platform.
- the segment transport track, the segment transport device disposed on the segment transport track, and the segment lifting device disposed on the top of the reaction support frame, and the segment transport track on the starting end supporting the walking platform is provided with the ground Docking track.
- the starting end supporting walking platform and the receiving end supporting walking platform are all connected by a plurality of sections of platform units connected end to end, and each platform unit is provided with a running mechanism at the bottom to realize rapid movement of the equipment in the tunnel to meet different positions.
- Contact channel construction needs.
- both sides of the bottom of the walking platform are provided with stable supporting boots; on the starting end supporting walking platform, a hydraulic system, an electric system, a control system, a slag improvement system and a slag discharging are further arranged. system.
- a method for trajecting a communication channel using the shield machine according to any of the above, wherein the excavating communication channel between two adjacent main tunnels comprises the following steps:
- the originating end and the receiving end are firmly processed: the main tunnel wall body and the tube piece at and around the originating end and the receiving end of the communication channel are reinforced to meet the requirements of the tunneling of the shield machine;
- the main tunnel support component is arranged on the rear side wall of the main tunnel corresponding to the originating end of the channel to meet the equipment pushing demand during the tunneling process of the shield machine;
- the shield machine and its ancillary equipment are installed on the starting end supporting walking platform, and the starting end supporting walking platform is pulled by the tractor to the excavation communication channel position to complete the whole equipment. Support and fixation, When the equipment is about to pass through, the receiving end supporting the traveling platform is pulled by the tractor to the receiving position corresponding to the communication channel, and the fixing is completed;
- Installation and excavation of the originating end seal firstly install the originating end seal assembly, realize the docking through the end joint plate and the sealing ring at the communication passage, and make the shield body and the end seal assembly of the shield machine
- the sealing sleeve is docked, and the sealing grease is injected into the shield body and the sealing sleeve through the grease injection hole to complete the sealing and holding pressure at the originating end; the shield machine and its accessory equipment are connected to the power source, and the jointing is performed by the reaction force.
- the jacking component on the support frame controls the excavation process and the excavation posture of the shield machine; after completing the excavation of one stroke, the communication channel is supported by the segment lifting assembly at the rear of the shield body of the shield machine, and is pushed by the jacking The boring assembly pushes the communication channel to support the slab and continues to dig, repeating the above-mentioned stroke boring until the receiving end of the communication channel is to be reached;
- the receiving end seal assembly is fixedly mounted on the main tunnel segment of the receiving end of the communication channel, and the sealing sleeve of the receiving end seal assembly is filled with the dregs by the pressure maintaining system, which satisfies After the cutter head of the shield machine runs through the receiving end of the communication channel, the formation and the tube piece are stabilized; after the seal end pressure of the receiving end end is maintained, the shield machine and its ancillary equipment continue to dig until the tunneling end passes through the receiving end of the communication channel And the support is completed;
- the support end supports the walking platform to load the main body of the shield machine, and the tractor pulls out the tunnel
- the starting end supports the walking platform, the auxiliary equipment and the tunnel support assembly to be disassembled, and is towed by the traction The car pulled out of the tunnel and completed the tunneling of a contact passage.
- the structural design of the invention is compact and reasonable, and the structural design of the reaction support frame and the main tunnel support component provides stable thrust reaction support for the tunneling of the shield machine, and can be applied during the tunneling process of the shield machine
- the force on the reaction support frame is distributed to the entire main tunnel segment, thereby ensuring that the shield machine can provide sufficient reaction support when excavating.
- the originating end and the receiving end of the communication channel of the present invention are provided with a tip sealing assembly, and the front partition and the end sealing assembly of the shield body are used to realize the isolation between the main tunnel and the ground layer, thereby ensuring the safety of the jacking and being effective. Resist the pressure of the formation to ensure that the excavation position of the cutterhead is consistent with the pressure of the formation to prevent the excavation from collapsing or watering into the main tunnel.
- the starting end support walking platform and the receiving end supporting walking platform of the invention can flexibly turn around in the main tunnel by traction, thereby greatly improving the flexibility of the shield machine of the communication channel, adapting to a limited working space, and realizing a limited working space.
- Excavation and segment support in the process of excavation, the single excavation process is the width of the segment, and after the completion of one stroke, the thrust cylinder is retracted, thereby leaving space for the assembly of the communication channel, thereby realizing multiplex
- the limited space can be effectively utilized in the excavation process at the originating end and the receiving end, thereby achieving stable and orderly excavation of the excavation.
- the invention can realize automatic mechanized excavation, greatly reduce labor intensity, reduce energy consumption and save cost, and at the same time, the equipment construction is stable, the efficiency is high, the ground settlement is effectively controlled, the construction risk is reduced, and the shield machine used in the application is adopted.
- the walking support platform of the mainframe is in the form of convenient movement.
- the main tunnel segment support system of the auxiliary design is convenient to disassemble and assemble, and can realize rapid and cyclic excavation of multiple communication channels.
- the overall structure design of the invention is reasonable, and the tunnel is well filled.
- the communication channel uses the shield machine to complete the blank of excavation and excavation, which has the characteristics of high efficiency, low risk, economic and environmental protection.
- Figure 1 is a schematic view of the overall structure of the present invention.
- FIG. 2 is a schematic diagram of a main tunnel layout structure of the originating end of the communication channel of the present invention.
- FIG. 3 is a second schematic diagram of the main tunnel layout structure of the originating end of the communication channel of the present invention.
- Figure 4 is a schematic structural view of the main body of the shield machine.
- FIG. 5 is a schematic view of the left side structure of FIG. 4.
- FIG. 5 is a schematic view of the left side structure of FIG. 4.
- Figure 6 is a schematic structural view of a main tunnel support assembly.
- Figure 7 is a schematic left side view of Figure 6.
- Figure 8 is a schematic view showing the structure of the originating end seal assembly and the receiving end seal assembly.
- Figure 9 is a schematic view showing the structure of the reaction support frame and the segment lifting assembly.
- Figure 10 is a schematic view showing the structure of the direction A-A in Figure 9.
- Figure 11 is a schematic view showing the structure of the direction B-B in Figure 9.
- the serial number is: 1 is the starting end supporting the walking platform, 2 is the receiving end supporting the walking platform, 3 is the shield machine main machine, 31 is the shield body, 32 is the shield front plate, 33 is the main drive system, 34 is the drive Motor, 35 is the cutterhead, 36 is the slag screw conveyor, 37 is the excavation cutter, 4 is the reaction support frame, 5 is the main tunnel support component, 51 is the main tunnel segment, and 52 is the force grid frame.
- 53 is a reinforcing beam
- 54 is a uniform load bearing panel
- 6 is an initial end seal assembly
- 7 is a receiving end seal assembly
- 8 is a segment lifting assembly
- 81 is a segment conveying rail
- 82 is a tube Sheet transport equipment
- 83 is the tube lifting equipment
- 84 is the track ball
- 85 is the lifting frame
- 9 is the pushing cylinder
- 10 is the communication channel
- 11 is the sealing sleeve
- 12 is the sealing brush
- 13 is the grease injection hole
- 14 The receiving end cover
- 15 is a pressure holding system
- 16 is a terminal connecting plate
- 17 is a sealing ring
- 18 is a communication channel supporting piece
- 19 is a butt support frame
- 20 is a stable support shoe
- 21 is a hydraulic system
- 22 is an electrical system
- 23 is a control system
- 24 is a slag improvement system
- 25 is a slagging system
- 26 is a main tunnel.
- a shield tunneling machine for a tunnel communication channel includes an originating end supporting walking platform 1 and a receiving end supporting walking platform respectively disposed on material conveying rails of two main tunnels 26 respectively. 2.
- the main machine of the shield machine 3 is respectively disposed on the starting end supporting the walking platform 1 and the corresponding main tunnel segment, the reaction support frame 4 and the main tunnel support assembly 5.
- the originating end seal assembly 6 and the receiving end seal assembly 7 respectively disposed at the originating end and the receiving end of the communication passage 10, and the starting end supporting traveling platform 1 is provided with a segment lifting assembly 8.
- the jacking assembly is disposed between the reaction force support frame and the main body of the shield machine, and the jacking tunneling assembly is a plurality of sets of jacking cylinders 9 disposed on the reaction force support frame.
- the starting end supporting walking platform 1 and the receiving end supporting walking platform 2 are all connected by a plurality of sections of the platform unit connected end to end, and the starting platform supporting the walking platform 1 and the receiving end supporting the walking platform 2 are provided on both sides of the bottom.
- a stabilizer shoe 20; a hydraulic system 21, an electric system 22, a control system 23, a slag improvement system 24, and a slagging system 25 are further disposed on the starting end supporting traveling platform 2, and the starting end supports the walking platform 1 and the receiving end
- the supporting walking platform 2 can flexibly walk along the material transport track curve of the main tunnel.
- the originating end seal assembly 6 and the receiving end seal assembly 7 at both ends of the communication passage each include a seal sleeve 11 fixed to the main tunnel segment at the end of the communication passage 10, and two disposed on the inner wall of the seal sleeve 11. a ring-shaped sealing brush 12, and a grease injection hole 13 formed in the wall of the sealing sleeve 11 between the two sealing brushes 12, the receiving end seal assembly further comprising a receiving end cover 14 and a communication
- a pressure holding system 15 is provided on the sealing sleeve 11, and an end connecting plate 16 and a sealing ring 17 are disposed between the inner end portion of the sealing sleeve 11 and the main tunnel segment 51.
- the initial starting end seal assembly can keep the cutter head excavation position and the formation pressure consistent when the shield machine starts to enter the formation and excavate the ground to prevent the excavation surface from collapsing and watering to the main tunnel.
- the starting end seal assembly is connected with the tube piece of the main tunnel, and two sealing brushes are arranged at a position close to the rear of the sealing sleeve, and the grease injection holes are arranged along the axial direction between the two sealing brushes.
- the main body of the shield machine is propelled, and after the sealing brush wraps the shield body, the grease is injected into the sealing brush to meet the requirements of the end seal.
- the receiving end seal assembly is similar to the originating end seal, but the rear part is closed. Before the main machine of the shield machine is driven out, a certain amount of muck is injected into the seal of the receiving end to meet the host of the shield machine. After excavation, the front pressure is consistent with the formation pressure to maintain the stability of the formation.
- the shield machine main body 3 in this embodiment includes a shield body 31, a shield front partition 32, a main drive system 33 and a drive motor 34 disposed in the shield 31, and a front end of the shield body and a connection with the main drive system.
- the cutter head 35 and the slag discharge screw conveyor 36 disposed in the shield body are matched and mated with the communication passage support tube piece 18 at the rear end portion of the shield body 31, and the jacking and boring assembly is docked by pushing the rear end of the shield body.
- the communication channel supports the segment and completes the excavation operation.
- the jacking assembly is a plurality of sets of jacking cylinders 9 disposed on the reaction support frame;
- the cutter head 35 in the present application is a spoke structure, and the cutter head A corresponding excavation tool 37 is arranged on the front beam of the 35.
- the drive motor directly drives the cutterhead to dig, eliminating the need for a reducer, reducing the length of the mainframe to a certain extent, and providing conditions for the lateral layout of the shield machine in the main tunnel; by providing an independent slagging system at the bottom of the shield partition
- the screw conveyor is arranged, and the slag discharging of the muck is completed by driving the spiral blade by the motor.
- the length of the screw conveyor is designed to be short to meet the requirements of the main machine of the shield machine in the tunnel.
- the pipeline is connected at the end of the screw slag end, and the discharged muck is guided to the side of the main body of the shield machine.
- the muck is pumped into the slag car.
- the rotation speed of the screw conveyor and the flow rate of the slag discharge pump are controlled to control the pressure of the earthen tank.
- the main tunnel support piece 51, the grid-like staggered arrangement and the force grid frame 52 disposed parallel to the reaction force support frame 4, and the force grid frame 52 and the main tunnel The annular rib beam 53 between the segments 51, the reaction force support frame 4 and the force grid frame 52 are matched and supported, and a force is provided on the force grid frame 52 corresponding to the reaction force support frame 4.
- the load-bearing panel 54, the main tunnel support component in the embodiment strengthens and supports the pipe piece at the main tunnel excavation communication channel, and combines the rear stratum reinforcement of the pipe piece to meet the demand of the reaction force of the shield machine main body during excavation. .
- the support assembly forms a distributed support on the inner ring of the segment, so that the stress applied to the rear portion of the segment by the main body of the shield machine is dispersed on the plurality of segment rings, thereby ensuring that the shield machine provides sufficient anti-digging when the excavation is performed. Support.
- the originating end supporting walking platform 1 and the receiving end supporting walking platform 2 are respectively provided with a docking support frame 19 of a limited support shield machine main body for supporting the limit shield machine main body
- the segment lifting assembly 8 includes a lifting frame 85, a segment transporting track 81 disposed on the starting end supporting traveling platform, a segment transporting device 82 matched to the segment transporting track 81, and a top of the reaction supporting frame and the lifting frame
- the segment lifting device 83, the starting piece supports the segment transport track on the walking platform 1 and is provided with a track ballast 84 that is docked with the ground.
- Embodiment 2 Referring to FIG. 1 to FIG. 11 , a method for traversing a communication channel of a shield machine according to the above embodiment, for excavating a communication channel between two adjacent main tunnels, specifically includes the following steps:
- the originating end and the receiving end are firmly processed: the main tunnel wall body and the tube piece at and around the originating end and the receiving end of the communication channel are reinforced to meet the requirements of the tunneling of the shield machine;
- the main tunnel support component is arranged on the rear side wall of the main tunnel corresponding to the originating end of the channel to meet the equipment pushing demand during the tunneling process of the shield machine;
- the shield machine and its ancillary equipment are installed on the starting end supporting walking platform, and the starting end supporting walking platform is pulled by the tractor to the excavation communication channel position to complete the whole equipment.
- Supporting and fixing when the equipment is about to pass through, the receiving end supporting the traveling platform is pulled by the tractor to the receiving position corresponding to the communication channel, and the fixing is completed;
- Installation and excavation of the originating end seal firstly install the originating end seal assembly, realize the docking through the end joint plate and the sealing ring at the communication passage, and make the shield body and the end seal assembly of the shield machine
- the sealing sleeve is docked, and the sealing grease is injected into the shield body and the sealing sleeve through the grease injection hole to complete the sealing and holding pressure at the originating end; the shield machine and its accessory equipment are connected to the power source, and the jointing is performed by the reaction force.
- the jacking component on the support frame controls the excavation process and the excavation posture of the shield machine; after completing the excavation of one stroke, the communication channel is supported by the segment lifting assembly at the rear of the shield body of the shield machine, and is pushed by the jacking The boring assembly pushes the communication channel to support the slab and continues to dig, repeating the above-mentioned stroke boring until the receiving end of the communication channel is to be reached;
- the main tunnel segment that fixes the receiving end seal assembly to the receiving end of the communication channel Above, the sealing sleeve of the pressure receiving system to the receiving end seal assembly is filled with dregs, which satisfies the stability of the bottom layer of the shield machine through the receiving end of the communication passage; the end of the receiving end is sealed and pressurized After the completion, the shield machine and its ancillary equipment continue to dig until the tunneling through the receiving end of the communication channel and the support is completed;
- the support end supports the walking platform to load the main body of the shield machine, and the tractor pulls out the tunnel
- the starting end supports the walking platform, the auxiliary equipment and the tunnel support assembly to be disassembled, and is towed by the traction The car pulled out of the tunnel and completed the tunneling of a contact passage.
- the accessory equipment is convenient for disassembly and transportation and transportation. If multiple communication channels need to be excavated between the two main tunnels, after completing the tunneling of one communication channel, rapid and cyclic excavation of multiple communication channels can be realized.
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Abstract
Description
Claims (8)
- 一种隧道联络通道用盾构机,其特征在于:包括分别设置在两主隧道内物料运输轨道上的始发端支撑行走平台和接收端支撑行走平台、盾构机主机、分别设置在始发端支撑行走平台和对应的主隧道管片上的反力支撑架和主隧道支护组件、以及分别设置在联络通道的始发端和接收端的始发端端头密封组件和接收端端头密封组件,所述的始发端支撑行走平台上设置有管片吊装组件,反力支撑架与盾构机主机之间设置有顶推掘进组件。
- 根据权利要求1所述的隧道联络通道用盾构机,其特征在于:所述的始发端端头密封组件和接收端端头密封组件均包括固定在联络通道端部的主隧道管片上的密封套筒、设置在密封套筒内壁上的两道环形的密封刷、和开设在两道密封刷之间的密封套筒筒壁上的油脂注入孔,所述的接收端端头密封组件还包括有接收端封盖和连通设置在密封套筒上的加压保持系统,密封套管内端部与主隧道管片之间设置有端头连接板和密封圈。
- 根据权利要求1所述的隧道联络通道用盾构机,其特征在于:所述的盾构机主机包括盾体、盾体前隔板、设置在盾体内的主驱动系统和驱动马达、设置盾体前端并与主驱动系统的连接的刀盘、以及设置在盾体内的排渣螺旋输送机,在盾体后端部与联络通道支撑管片匹配对接,所述的顶推掘进组件通过顶推盾体后端对接的联络通道支撑管片,完成开挖掘进作业;所述的刀盘为辐条式结构,刀盘前部的刀梁上布置有相应的开挖刀具。
- 根据权利要求1所述的隧道联络通道用盾构机,其特征在于:所述的顶推掘进组件为布设在反力支撑架上的多组顶推油缸。
- 根据权利要求1所述的隧道联络通道用盾构机,其特征在于:所述的主隧道支护组件包括主隧道管片、格栅状交错布设并与反力支撑架平行设置的受力格栅架、和设置在受力格栅架与主隧道管片之间的加强筋梁,所述的反力支 撑架与受力格栅架匹配贴合支撑,且在与反力支撑架对应的受力格栅架上设置有均力承载面板。
- 根据权利要求1所述的隧道联络通道用盾构机,其特征在于:所述的始发端支撑行走平台和接收端支撑行走平台上均设置有限位支撑盾构机主机的对接支撑架,所述的管片吊装组件包括吊装架、设置在始发端支撑行走平台上的管片运输轨道、匹配设置在管片运输轨道上的管片运输设备、以及设置在反力支撑架顶部和吊装架上的管片起吊设备,始发端支撑行走平台上的管片运输轨道设置有与地面对接的轨道道岔。
- 根据权利要求1所述的隧道联络通道用盾构机,其特征在于:所述的始发端支撑行走平台和接收端支撑行走平台均为多节首尾相连的平台单元对接而成,在各节平台单元底部设置有行走机构,在始发端支撑行走平台和接收端支撑行走平台底部两侧均设置有稳定撑靴;在始发端支撑行走平台上还设置有液压系统、电气系统、控制系统、渣土改良系统和排渣系统。
- 一种利用上述任一所述的盾构机的联络通道掘进方法,其特征在于:对于相邻两主隧道之间挖掘联络通道,其具体包括以下步骤:①始发端和接收端稳固处理:对联络通道的始发端和接收端处及其周边的主隧道壁体和管片进行加固处理,满足盾构机的开挖通过的需求;在与联络通道的始发端对应的主隧道的后侧壁上设置主隧道支护组件,满足盾构机掘进过程中的设备顶推需求;②整体设备的固定和支撑:将盾构机及其附属设备安装放置在始发端支撑行走平台上,并将始发端支撑行走平台通过牵引车牵引至开挖联络通道位置,完成整体设备的支撑和固定,待盾构机掘进联络通道即将贯通时,再将接收端支撑行走平台通过牵引车牵引至联络通道对应的接收位置,完成固定;③始发端端头密封的安装和掘进:首先安装始发端端头密封组件,通过联络通道处端头连接板及密封圈实现对接,并使盾构机的盾体与端头密封组件的密封套筒完成对接,通过油脂注入孔向盾体与密封套筒之间注入密封油脂,完成始发端的密封和保压;盾构机及其附属设备接通电源,联调掘进,由反力支撑架上的顶推掘进组件控制盾构机的掘进行程和掘进姿态;完成一个行程的掘进后,顶推掘进组件的顶推油缸收回,通过管片吊装组件在盾构机的盾体后部连续拼装联络通道支撑管片,由顶推掘进组件顶推联络通道支撑管片继续掘进,重复上述行程掘进,直至待到达联络通道的接收端;④接收端端头密封:将接收端端头密封组件固定安装在联络通道的接收端的主隧道管片上,由加压保持系统向接收端端头密封组件的密封套筒内填充满渣土,满足盾构机的刀盘贯穿联络通道的接收端后地层及管片的稳定;待接收端端头密封加压保持完成后,盾构机及其附属设备继续掘进,直至掘进贯穿联络通道的接收端并支护完成;⑤拆除接收端端头密封组件,由接收端支撑行走平台装载盾构机主机,并由牵引车牵引出隧道,对始发端支撑行走平台、附属设备及隧道支护组件完成拆卸,并由牵引车牵引出隧道,完成一个联络通道的掘进。
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