CN113482646A - Slurry balance shield machine for communication channel - Google Patents
Slurry balance shield machine for communication channel Download PDFInfo
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- CN113482646A CN113482646A CN202110980856.XA CN202110980856A CN113482646A CN 113482646 A CN113482646 A CN 113482646A CN 202110980856 A CN202110980856 A CN 202110980856A CN 113482646 A CN113482646 A CN 113482646A
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- 238000004891 communication Methods 0.000 title claims abstract description 50
- 239000002002 slurry Substances 0.000 title claims abstract description 44
- 239000000463 material Substances 0.000 claims abstract description 20
- 230000005641 tunneling Effects 0.000 claims description 52
- 238000007789 sealing Methods 0.000 claims description 31
- 229910000831 Steel Inorganic materials 0.000 claims description 27
- 239000010959 steel Substances 0.000 claims description 27
- 230000013011 mating Effects 0.000 claims description 9
- 238000013519 translation Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 12
- 239000007788 liquid Substances 0.000 abstract description 5
- 239000002893 slag Substances 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 239000013049 sediment Substances 0.000 abstract description 2
- 230000000977 initiatory effect Effects 0.000 description 14
- 238000000034 method Methods 0.000 description 9
- 230000032258 transport Effects 0.000 description 7
- 239000004519 grease Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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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
- E21D9/008—Driving transverse tunnels starting from existing tunnels
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/40—Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
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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
- E21D9/0621—Shield advancing devices
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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
- E21D9/087—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 with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
- E21D9/0873—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 with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines 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
- E21D9/093—Control of the driving shield, e.g. of the hydraulic advancing cylinders
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a slurry balance shield machine for a communication channel, which comprises: the shield machine is provided with a cutter head and a propulsion driving piece; the rear matching auxiliary part is used for conveying the segment to be lined to a material conveying system of the segment erector; the starting sleeve and the receiving sleeve are respectively arranged in the starting end main tunnel and the receiving end main tunnel, and the shield machine can be in sliding fit; one end of the starting counterforce frame is attached and fixed with the tail end of the starting sleeve. The shield machine of this scheme of adoption excavates the contact passageway, need not set up the top and push the hydro-cylinder on the reaction frame that starts, the flexible of usable shield host computer self propulsion cylinder realizes the initial tunnelling, the main tunnel department of starting support section of jurisdiction atress condition has been reduced, the risk that the main tunnel section of jurisdiction is creased has been avoidable, and slag tap through the circulation, combine the main material transport passageway that sets up in the main tunnel to carry out the material transport, the collaborative work efficiency has been promoted greatly, the problem of slag hopper car transport sediment thick liquid pollution main tunnel environment has effectively been solved, be favorable to improving work efficiency, reduce construction cost.
Description
Technical Field
The invention relates to the technical field of tunnel construction equipment, in particular to a slurry balance shield machine for an interconnection channel.
Background
According to the relevant design specifications stipulate: when the lengths of the single lines of the two single line interval shield tunnels are larger than a certain distance, a communication channel is required to be arranged between the two tunnels so as to ensure fire rescue and rapid evacuation and escape of personnel.
At present, because the traditional mine method construction soil body disturbance is large, the freezing method long-distance construction energy consumption is high and the like, the connection channel between shield tunnels is generally constructed by adopting a pipe jacking machine. When the pipe jacking machine is used for operation, after the pipe joints are jacked for a certain distance, the connecting pipeline between the pipe jacking machine head and the rear support needs to be disassembled and disconnected, new pipe joints are added again and connected, and then the assembling operation can be carried out again, so that the pipe piece assembling efficiency is low, the acting force of the starting frame on the main tunnel is intensified during long-distance shield construction, and the main tunnel has potential safety hazards such as crushing and the like; when the earth pressure shield machine is adopted for operation, the conditions of unreasonable material transportation, easy pollution to the environment of the main tunnel, interference to material transportation of the main tunnel and the like exist.
Therefore, how to provide a balanced shield machine for a communication channel to reduce the risk of crushing a main tunnel segment is a problem to be solved urgently by the technical field.
Disclosure of Invention
In view of the above, the invention provides a balance shield machine for a contact passage, which is used for improving the efficiency of cooperative construction operation, avoiding construction risks, reducing environmental pollution of a main tunnel, reducing the risk of crush of a main tunnel segment and the like.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a mud water balance shield constructs machine for contact passageway which characterized in that includes:
the shield machine is used for a communication channel between shield tunnels and comprises a cutter head for tunneling and a propulsion driving piece for driving the cutter head to propel along the tunneling direction;
the rear auxiliary assembly is used for providing a control system, an electric system and a hydraulic system;
the material conveying system is used for conveying the segment to be lined to the segment erector;
the shield tunneling machine comprises an originating sleeve and a receiving sleeve, wherein the originating sleeve is used for supporting the originating of the shield tunneling machine, the receiving sleeve is used for receiving the shield tunneling machine, the originating sleeve and the receiving sleeve are respectively arranged in an originating main tunnel and a receiving main tunnel of a communication channel to be established, and the shield tunneling machine can be in sliding fit with the originating sleeve and the receiving sleeve;
one end of the starting reaction frame is fixedly attached to the tail end of the starting sleeve, and the supporting piece of the starting reaction frame is used for being attached to the inner wall of the main tunnel segment.
Preferably, in the slurry balance shield tunneling machine for a communication passage, the shield tunneling machine includes:
the cutter head is arranged at the front end of the shield body, and the propulsion driving piece is arranged along the circumferential direction of the cutter head;
the circulating system comprises a slurry inlet pipe communicated with a main slurry inlet pipe of the main tunnel and a slurry discharge pipe communicated with a main slurry discharge pipe of the main tunnel, and the position height of the slurry inlet pipe on the shield body is higher than the position height of the slurry discharge pipe on the shield body;
and the driving system is fixed in the shield body and drives the cutter head to rotate.
Preferably, in the slurry balance shield tunneling machine for the communication channel, the material transportation system includes:
the initiating end crane assembly is arranged on the initiating reaction frame and is used for hoisting the segment to be lined and unloading the segment to be lined;
and the flat trolley is used for conveying the segment to be lined, and reciprocates between the originating crane assembly and the segment erector.
Preferably, in the slurry balance shield tunneling machine for a communication passage, the starting reaction frame includes: the shield tunneling machine comprises a base frame, a shield tunneling machine and a crane assembly, wherein the base frame is fixed on a box culvert of a main tunnel, a starting hole for starting the shield tunneling machine and passing materials is formed in the base frame, a movable beam for moving the crane assembly at the starting end is arranged at the upper part of the base frame, and the movable beam is arranged along the axial direction of the starting hole;
the supporting piece is an arc-shaped supporting piece which is used for being attached to the inner wall of the main tunnel segment, and the supporting piece is fixed on the base frame.
Preferably, in the slurry balance shield tunneling machine for the communication channel, a first connecting steel ring is arranged between the originating sleeve and the tunnel segment in the originating end main tunnel, one end of the first connecting steel ring is fixedly connected with the tunnel segment of the originating end main tunnel in a sealing fit manner, and the other end of the first connecting steel ring is connected with a sealing and fixing flange on the outer side of the end part of the originating sleeve;
and a second connecting steel ring is arranged between the receiving sleeve and the tunnel segment in the receiving end main tunnel, one end of the second connecting steel ring is fixedly connected with the tunnel segment of the receiving end main tunnel in a sealing and laminating manner, and the other end of the second connecting steel ring is connected with a sealing and fixing flange on the outer side of the end part of the receiving sleeve.
Preferably, in the slurry balance shield tunneling machine for the communication channel, the starting sleeve and the receiving sleeve are both cylindrical sleeves spliced by half ring plates;
a sealing support table for sealing and supporting the originating end pipe piece is arranged at one end, away from the receiving sleeve, of the originating sleeve, and a cover is arranged at one end, away from the originating sleeve, of the receiving sleeve;
and the originating sleeve and the receiving sleeve are both provided with a pressure-maintaining grease-injecting interface communicated with the pressure-maintaining grease-injecting system and/or a pressure-maintaining grouting interface communicated with the pressure-maintaining grouting system.
Preferably, in the slurry balance shield tunneling machine for a communication passage, sliding guide rails for sliding fit with the shield tunneling machine are respectively provided on inner walls of the starting sleeve and the receiving sleeve along a circumferential direction, the sliding guide rails of the starting sleeve are provided along an axial direction of the starting sleeve, and the sliding guide rails of the receiving sleeve are provided along an axial direction of the receiving sleeve.
Preferably, in the slurry balance shield tunneling machine for the communication channel, the cutter head is a spherical cambered-surface cutter head, and shield cutters are arranged on the arc-shaped panel and the spoke arms of the cutter head.
Preferably, in the slurry balance shield tunneling machine for the communication channel, the segment erector is a mechanical grabbing type erector, and the translation frame of the segment erector for conveying segments is of a T-shaped single-beam structure.
Preferably, in the slurry balance shield tunneling machine for a communication channel, the rear auxiliary accessory includes a rear auxiliary trolley, and the control system, the electrical system, and the hydraulic system are disposed on the shield tunneling machine and the rear auxiliary trolley.
The slurry balance shield machine for the communication channel provided by the invention has the advantages that the communication channel is machined by the shield machine, the cutter head and the assembled segment are pushed by the propelling driving piece of the shield machine to enable the shield machine to advance, so that the risk of crushing a main tunnel due to overlarge stress at an initial frame in a push bench is reduced, in addition, the shield machine does not need to be connected with a rear matched part by disassembling a push bench head, the position for installing the segment is provided by the shrinkage of a propelling oil cylinder, and the installed segment is used as a limiting piece of the propelling oil cylinder for the shield machine to advance again. To sum up, adopt the shield structure machine to process the linkage passageway, machining efficiency is high, and factor of safety is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a balanced shield tunneling machine for an interconnection passage in a main tunnel during construction according to an embodiment of the present invention;
fig. 2 is an internal front view of the balance shield machine for the communication passage disclosed in the embodiment of the present invention;
FIG. 3 is a front view of a cutter head of the balance shield machine for the communication channel disclosed in the embodiment of the invention;
fig. 4 is a schematic structural diagram of a segment erector of a balance shield machine for a communication channel disclosed in the embodiment of the present invention;
fig. 5 is a layout connection diagram of a rear mating auxiliary of the balance shield machine for the communication channel disclosed in the embodiment of the present invention;
fig. 6 is a schematic structural diagram of an originating end and a receiving end of the balanced shield tunneling machine for a communication channel disclosed in the embodiment of the present invention;
fig. 7 is a front cross-sectional view of an originating sleeve of a balanced shield tunneling machine for a communication passage disclosed in an embodiment of the present invention;
FIG. 8 is an enlarged view of a portion I of FIG. 7;
FIG. 9 is a front view of an assembly of an originating reaction frame of a balanced shield tunneling machine for a communication corridor as disclosed in an embodiment of the present invention;
fig. 10 is a side view of an assembly of an originating reaction frame for a balanced shield tunneling machine for a communication corridor as disclosed in an embodiment of the present invention.
Detailed Description
The invention discloses a balance shield machine for an interconnection passage, which aims to improve the efficiency of cooperative construction operation, avoid construction risks, reduce the environmental pollution of a main tunnel and reduce the risk of crush of a main tunnel segment.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-10, the present application further discloses a slurry balance shield machine for a communication channel, which includes: shield machine 1, back kit, material handling system, originating 401 and receiving 402 sleeves, and originating reaction frame 5. Specifically, the shield machine 1 is a communication passage for a shield tunnel, and the shield machine 1 has a cutter head 101 for excavation and a thrust drive member for driving the cutter head 101 to advance in the excavation direction.
Preferably, when the propulsion driving element is a propulsion oil cylinder 104, one end of the propulsion oil cylinder 104 abuts against the cutter head 101, and the other end abuts against the assembled segment, so that when the propulsion oil cylinder 104 extends outwards, the assembled segment is not moved, and therefore the cutter head 101 moves forwards to complete tunneling. The propulsion oil cylinders 104 are uniformly distributed in the shield body 102 along the circumferential direction in a floating support mode, the whole propulsion oil cylinder 104 penetrates through a front annular plate and a rear annular plate of the shield body 102, the rear end of the propulsion oil cylinder is fixed on the rear annular plate of the shield body 102, and a front-end cantilever is free of support.
The rear auxiliary accessories are used for providing the control system 205, the electrical system 204 and the hydraulic system 203, and in practice, corresponding communication systems and the like can be arranged according to other requirements. In practice, the hydraulic system 203, the electrical system 204 and the control system 205 for the rear mating accessories provide the basis for the power, electricity and control of the whole slurry balance shield machine.
The material conveying system is used for conveying the to-be-lined duct pieces 6 from a duct piece storage place to the duct piece erector 105. The material conveying system finishes the transportation of the to-be-lined duct pieces 6, and is not limited to specific transportation modes and transportation quantities.
In practice, the above-described originating sleeve 401 and receiving sleeve 402 are arranged in the originating main tunnel and receiving main tunnel, respectively, of the communication channel to be established, and the shield tunneling machine 1 can be slidably fitted with the originating sleeve 401 and receiving sleeve 402. One end of the starting reaction frame 5 is fixedly attached to the tail end of the starting sleeve 401, and the support member 502 of the starting reaction frame 5 is used for attaching to the inner wall of the main tunnel segment 7. Reinforcing the main tunnel wall body and the main tunnel segment 7 in the corresponding area and periphery of the initiating end and the receiving end of the proposed communication channel, and correspondingly arranging an initiating sleeve 401 and a receiving sleeve 402 in the initiating end main tunnel and the receiving end main tunnel of the communication channel to be established so as to facilitate the initiating and receiving of the shield tunneling machine 1. The starting counterforce frame 5 is arranged to provide counterforce for starting of the shield tunneling machine 1.
According to the structure, the shield machine 1 is adopted to process the communication channel in the application, the shield machine 1 is driven to push the cutter head 101 and the assembled pipe piece through the propelling driving piece of the shield machine 1, so that the risk that the original frame is stressed excessively and crushes a main tunnel is reduced, in addition, the shield machine 1 does not need to be connected with a rear support head in a disassembling mode, the position for installing the pipe piece is provided through the contraction of the propelling oil cylinder 104, and the installed pipe piece serves as the limiting piece of the propelling oil cylinder 104 for the shield machine 1 to advance again. To sum up, adopt shield structure machine 1 to process the linkage passageway, machining efficiency is high, and factor of safety is high.
In a preferred embodiment, the shield tunneling machine 1 comprises a shield 102, a circulation system 202 and a drive system 103. The cutter head 101 is arranged at the front end of the shield body 102, the propelling driving pieces are arranged along the circumferential direction of the cutter head 101, the quantity of the propelling driving pieces is required to be set according to the power of the propelling driving pieces and the geological condition of the communication channel, and the propelling driving pieces and the geological condition are all in a protection range. Preferably, in order to ensure the balance of the stress on the cutter head 101, the propulsion drives are uniformly arranged along the circumferential direction of the cutter head 101. The circulation system 202 comprises a slurry inlet pipe 2021 communicated with a main slurry inlet pipe of the main tunnel and a slurry discharge pipe 2022 communicated with a main slurry discharge pipe of the main tunnel, and the slurry inlet pipe 2022 is higher than the slurry discharge pipe 2022 on the shield body 102 to ensure the fluidity of the slurry water. The drive system is fixed in the shield 102 and drives the cutterhead 101 in rotation. Carry out the circulation through advancing thick liquid pipe and main thick liquid pipe intercommunication with the owner that sets up in the main tunnel and arrange thick liquid pipe intercommunication and go out the slag, combine the main material transport passageway that sets up in the main tunnel to carry out the material and transport, thereby promoted the cooperative operation efficiency greatly, effectively solved the problem that slag hopper car transports the main tunnel environment of sediment thick liquid pollution, be favorable to improving work efficiency, reduce construction cost.
During operation, the driving system 103 starts the cutter head 101 to rotate, then starts the propelling driving element to enable the propelling driving element to be abutted against the installed segments, under the action of the propelling driving element and the tunneling action of the cutter head 101, the shield body 102 moves forwards for a tunneling stroke, then the propelling driving element stops and retracts, and the to-be-lined segments 6 conveyed by the material conveying system are assembled between the propelling driving element and the segments assembled before and by the segment assembling machine 105.
The material handling system disclosed in this application includes: an originating end crane assembly 301 and a flat car 302, wherein the originating end crane assembly 301 is arranged on the originating reaction frame 5, and the originating end crane assembly 301 is used for hoisting the segment 6 to be lined and can unload the segment 6 to be lined, that is, the hoisting, running and unloading of the segment 6 to be lined can be completed through the originating end crane assembly 301; the flat car 302 is a transfer device, and conveys the segment 6 to be lined to the segment erector 105. Specifically, the flatbed cart 302 can travel on rails on a traveling platform 303 in the communication aisle, and the flatbed cart 302 can transport at least one segment 6 to be lined at a time. After the propulsion cylinder 104 advances a tunneling stroke, the originating crane assembly 301 on the originating reaction frame 5 unloads the contact tunnel, which is transported to the originating reaction frame 5 by the main tunnel transport vehicle 305, onto the flat car 302 with the segment 6 to be lined, and transports the segment to the segment erector 105, and completes a ring pipe segment assembling action by the segment erector 105, and repeats the above process, so that the shield tunneling machine 1 continuously tunnels forwards until reaching the receiving end of the contact tunnel.
The skilled person can understand that the material transportation system can also be transported by a mechanical arm, as long as the transportation mode of the to-be-lined duct piece 6 is within the protection range.
In the above embodiments, the originating reaction frame 5 disclosed in the present application includes a base frame 501 and a brace member 502. Specifically, the base frame 501 is used as a basic component of the starting reaction frame 5 and is fixed on a box culvert of a main tunnel to fix the whole starting reaction frame 5, in order to realize the work of the shield machine 1, a starting hole for the shield machine 1 to start and pass materials is arranged on the base frame 501, a moving beam 503 for the shield machine 1 to move is arranged on the upper portion of the base frame 501, and the moving beam 503 is arranged along the axial direction of the starting hole. The supporting member 502 is an arc-shaped supporting member for being attached to the inner wall of the main tunnel segment, and the supporting member 502 is fixed on the base frame 501.
When the system is installed, the starting reaction frame 5 is fixed at the rear end of the starting sleeve 401, the front end face of the starting reaction frame 5 is relatively fixed with the starting sleeve 401, the arc-shaped supporting piece of the starting reaction frame 5 is completely attached to the inner wall surface of the main tunnel pipe segment, the starting crane assembly 301 is installed on the moving beam 503 of the starting reaction frame 5, and the specific installation of the starting reaction frame 5 is completed through the arrangement.
The mud water balance shield machine for the communication channel disclosed in the application is characterized in that a first connecting steel ring 403 is arranged between the originating sleeve 401 and the tunnel segment in the originating main tunnel, one end of the first connecting steel ring 403 is fixedly connected with the tunnel segment of the originating main tunnel in a sealing fit mode, the other end of the first connecting steel ring 403 is connected with a sealing fixing flange on the outer side of the end portion of the originating sleeve 401, and therefore the originating sleeve 401 and the main tunnel segment can be connected, and the receiving sleeve 402 and the main tunnel segment can be connected. Similarly, a second connecting steel pipe 404 is arranged between the receiving sleeve 402 and the tunnel segment in the receiving end main tunnel. The steel rings are arranged to ensure not only the sealing engagement of the originating sleeve 401 and the receiving sleeve 402 with the tunnel segments, but also the strength requirements. The first connecting steel ring 403 and the second connecting steel ring 404 are both arc-shaped surfaces on the surfaces for being attached to the main tunnel segment, so as to adapt to the arc-shaped tunnel segment.
In a preferred embodiment, the starting sleeve 401 and the receiving sleeve 402 are all cylindrical sleeves spliced by half ring plates, and specifically, the starting sleeve 401 and the receiving sleeve 402 both include a supporting half sleeve at the bottom and a sealing half sleeve at the upper, and the two parts are spliced to form a complete cylindrical sleeve. In addition, the front end face of starting sleeve 401 is fitted and sealed with first connecting steel ring 403, and the rear end of starting sleeve 401 is provided with a sealing support 406 for sealing and supporting the starting end pipe piece. The rear end of the receiving sleeve 402 is in close sealing connection with the second connecting steel ring 404, and the front end of the receiving sleeve 402 is provided with a cylinder cover 407 in sealing fixed connection. In practice, a pressure maintaining and grease injecting interface communicated with the pressure maintaining and grease injecting system and/or a pressure maintaining and grouting interface communicated with the pressure maintaining and grouting system are arranged on the originating sleeve 401 and the receiving sleeve 402, so as to ensure the sealing effect and the installation strength of the originating sleeve 401 and the receiving sleeve 402.
In a specific embodiment, the inner walls of the starting sleeve 401 and the receiving sleeve 402 are provided with sliding rails 405 along the circumferential direction for sliding fit with the shield tunneling machine 1, the sliding rails 405 of the starting sleeve 401 are arranged along the axial direction of the starting sleeve 401, and the sliding rails 405 of the receiving sleeve 402 are arranged along the axial direction of the receiving sleeve 402. In operation, the shield machine 1 moves along the sliding guide 405 from the starting sleeve 401 to the receiving sleeve 402, completing the shield process. The cross section of the sliding guide rail 405 in the application is designed to be in a convex shape, and the smaller upper structure is designed, so that the contact area of the outer wall surface of the lower shield body of the shield tunneling machine 1 can be reduced on the premise of ensuring the supporting strength, and the reduction of the friction resistance is facilitated.
In a further embodiment, the cutter head 101 disclosed in the present application is a spherical arc cutter head, and the shield cutter 1012 is disposed on both the arc panel 1011 and the spoke 1013 of the cutter head 101. The specific shape of the cutter head 101, the position and the installation mode of the cutter on the cutter head 101 can be set according to different requirements, as long as the requirement of geological tunneling of a proposed communication channel can be met.
In a further embodiment, the segment erector 105 is a mechanical pick-and-place erector, and the translation frame 1052 of the segment erector 105 for transporting the segments is a T-beam structure. Snatch the formula erector through machinery and can snatch for the manipulator, be convenient for realize automated control. During operation, the manipulator of segment erector 105 snatchs area lining segment 6 from flatbed dolly 302 to translation frame 1052 translation through T style of calligraphy monospar structure is to treating the assembly position, then starts flexible arm 1051, carries the segment that the manipulator snatched to the assembly position, accomplishes assembling of this segment.
Further, the rear mating accessory disclosed in the present application includes a rear mating cart 201, and the control system 205, the electrical system 204, and the hydraulic system 203 described above are arranged on the shield tunneling machine 1 and the rear mating cart 201. The rear matching trolleys 201 are arranged in the primary tunnel of the initiating end according to a certain sequence; the circulation system 202 further comprises a circulation pump 2023, which comprises a slurry inlet pump, a slurry discharge pump and the like to provide power for the slurry, so as to control the flow rate of the slurry; the hydraulic system 203, the electrical system 204 and the control system 205 are coiled at the set positions in the main tunnel by pipelines, and the reserved length of the pipelines is at least not less than the shield requirement of the proposed communication channel.
The concrete process of adopting the shield connecting channel of the slurry balance shield machine disclosed above is as follows:
firstly, reinforcing corresponding areas of an initiating terminal and a receiving terminal: reinforcing corresponding areas of an initiating end and a receiving end of a proposed contact channel, a peripheral main tunnel wall body and a main pipe piece, fixedly connecting steel rings at the initiating end and the receiving end, and after the sealing and fixing treatment of the connected steel rings is finished, fixedly connecting a bottom supporting sleeve of the initiating sleeve 401, a fixed shield tunneling machine host and a sealing sleeve at the upper part of the initiating sleeve at the initiating end in sequence by virtue of a movable hoisting device, and simultaneously, fixedly connecting a receiving sleeve 402 at the receiving end so as to finish the construction of the initiating end and the fixing end at two ends of the contact channel.
Then, the fixing and supporting of the initial reaction frame 5 and the rear matching auxiliary are assembled: fixing the starting reaction frame 5 at the rear end of the starting sleeve 401 to ensure that the front end surface of the starting reaction frame 5 is fixed relative to the starting sleeve 401, the arc-shaped supporting piece of the starting reaction frame 5 is completely attached to the inner wall surface of the main tunnel segment, and the starting crane assembly 301 is installed on the corresponding movable beam 503 of the starting reaction frame 5; the rear matching auxiliary part is fixedly arranged in the main tunnel close to the starting position side, a circulation system 202, a hydraulic system 203, an electrical system 204 and a control system 205 are connected, all system parts complete online debugging and the like, at least one ring of lining segments are pre-assembled in the tail end of the shield machine 1 according to actual working conditions, and fixing and supporting operation before starting is completed.
Secondly, the sealing and pressure maintaining of the starting end and the starting tunneling are ensured: checking the assembly of the sealing joints of the first connecting steel ring 403 and the starting sleeve 401 at the starting end, intermittently injecting sealing grease between the shield body of the shield tunneling machine 1 and the starting sleeve 401 through a pressure maintaining grease injection interface arranged on the starting sleeve 401, and simultaneously starting a shield tail grease injection system arranged on the shield tunneling machine 1 to inject shield tail grease into a shield tail to complete the sealing and pressure maintaining operation of the starting end of the shield tunneling machine 1; the whole machine of the shield machine is started, a circulation system is communicated with slurry from a main slurry inlet pipe and a main slurry discharge pipe of a main tunnel, a propulsion oil cylinder 104 is used for propping against assembled and stable segments, a cutter head 101 is pushed to slowly penetrate and tunnel, the shield posture is adjusted in real time through the propulsion oil cylinder 104, after a tunneling stroke is completed, an initial end crane component 301 on an initial reaction frame 5 unloads a connecting channel conveyed to the initial reaction frame 5 by a main tunnel transport vehicle 305 onto a flat trolley 302 by using segments 6 to be lined at the position of the initial reaction frame 5 and conveys the connecting channel to a segment erector 105, a circular segment assembling operation is completed through the segment erector 105, the steps are repeated, and the shield machine continuously tunnels forwards until a receiving end of the connecting channel is reached.
And thirdly, carrying out sealing pressure maintaining treatment on the receiving end: when the shield machine 1 reaches the receiving end, the receiving end needs to be sealed and pressure-maintained in advance, the sealing performance of the sealing connection of the second connecting steel ring 404 and the receiving sleeve 402 of the receiving end is detected, an external grouting and pressure-maintaining system and the like fill fillers into the receiving sleeve 402 through a pressure-maintaining grouting interface, the sealing and pressure-maintaining operation of the receiving end is completed, the stability of strata and segments after the shield machine 1 penetrates through the receiving end is ensured, and the shield machine 1 continues to shield and tunnel in the receiving sleeve 402 until a communication channel is completely formed in a penetrating mode.
And finally, disassembling: the method comprises the following steps of sequentially disassembling a receiving sleeve 402, disassembling a main body and an auxiliary part of the shield machine 1, disassembling redundant pipe pieces at a receiving end and a second connecting steel ring 404, disassembling an initial reaction frame 5 and an auxiliary part, disassembling a walking platform, disassembling an initial sleeve 401, disassembling redundant pipe pieces at an initial end and a first connecting steel ring 403, and meanwhile, conveying the disassembled shield machine 1 and the auxiliary part to the next contact passage to be built or out of a main tunnel to finish shield excavation of the contact passage.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a mud water balance shield constructs machine for contact passageway which characterized in that includes:
the shield machine (1) is used for a communication channel between shield tunnels, and the shield machine (1) is provided with a cutter head (101) used for tunneling and a propulsion driving piece used for driving the cutter head (101) to propel along the tunneling direction;
a rear mating accessory for providing a control system (101), an electrical system and a hydraulic system;
a material conveying system for conveying the segment (6) to be lined to the segment erector (105);
an originating sleeve (401) for supporting the originating of the shield machine (1) and a receiving sleeve (402) for receiving the shield machine (1), the originating sleeve (401) and the receiving sleeve (402) being respectively arranged in an originating main tunnel and a receiving main tunnel of a communication channel to be established, the shield machine (1) being slidably fitted with the originating sleeve (401) and the receiving sleeve (402);
and one end of the starting reaction frame (5) is fixedly attached to the tail end of the starting sleeve (401), and a supporting piece (502) of the starting reaction frame (5) is used for being attached to the inner wall of the main tunnel segment.
2. The slurry balance shield machine for a communication passage according to claim 1, wherein the shield machine (1) comprises:
the shield body (102), the cutter head (101) is arranged at the front end of the shield body (102), and the propulsion driving piece is arranged along the circumferential direction of the cutter head (101);
an circulation system (202), wherein the circulation system (202) comprises a pulp inlet pipe (2021) communicated with a main pulp inlet pipe of a main tunnel and a pulp discharge pipe (2022) used for being communicated with a main pulp discharge pipe of the main tunnel, and the position height of the pulp inlet pipe (2021) on the shield body (102) is higher than the position height of the pulp discharge pipe (2022) on the shield body (102);
and the driving system (103) is fixed in the shield body (102) and drives the cutter head (101) to rotate.
3. The slurry balance shield machine for the communication channel as claimed in claim 1, wherein the material transporting system comprises:
an originating crane assembly (301) arranged on the originating reaction frame (5), the originating crane assembly (301) being adapted to hoist a segment (6) to be lined and being capable of unloading the segment (6) to be lined;
a skillet cart (302) for transporting a segment (6) to be lined, the skillet cart (302) reciprocating between the originating crane assembly (301) and the segment erector (105).
4. The slurry balance shield machine for communication passage according to claim 3, wherein the originating reaction frame (5) comprises: the shield tunneling machine comprises a base frame (501), wherein the base frame (501) is fixed on a box culvert of a main tunnel, a starting hole for starting the shield tunneling machine and passing materials is formed in the base frame (501), a moving beam (503) for moving the starting end crane assembly (301) is arranged at the upper part of the base frame (501), and the moving beam (503) is arranged along the axial direction of the starting hole;
the supporting piece (502), the supporting piece (502) is the arc supporting piece that is used for with the laminating of main tunnel section of jurisdiction inner wall, supporting piece (502) is fixed on bed frame (501).
5. The slurry balance shield tunneling machine for communication channels as claimed in claim 1, wherein a first connecting steel ring (403) is arranged between the originating sleeve (401) and the tunnel segment in the originating main tunnel, one end of the first connecting steel ring (403) is fixedly connected with the tunnel segment of the originating main tunnel in a sealing fit manner, and the other end of the first connecting steel ring is connected with a sealing and fixing flange outside the end of the originating sleeve (401);
a second connecting steel ring (404) is arranged between the receiving sleeve (402) and a tunnel segment in the receiving end main tunnel, one end of the second connecting steel ring (404) is fixedly connected with the tunnel segment of the receiving end main tunnel in a sealing and laminating manner, and the other end of the second connecting steel ring is connected with a sealing and fixing flange on the outer side of the end part of the receiving sleeve (402).
6. The slurry balance shield tunneling machine for communication channels according to claim 5, wherein the starting sleeve (401) and the receiving sleeve (402) are both cylindrical sleeves spliced by half ring plates;
and the end of said originating sleeve (401) remote from said receiving sleeve (402) is provided with a sealing support table (406) for sealing and supporting an originating end segment, and the end of said receiving sleeve (402) remote from said originating sleeve (401) is provided with a cover (407);
and the originating sleeve (401) and the receiving sleeve (402) are both provided with pressure-maintaining and grease-injecting interfaces communicated with a pressure-maintaining and grease-injecting system and/or pressure-maintaining and grouting interfaces communicated with a pressure-maintaining and grouting system.
7. The slurry balance shield machine for the communication passage according to claim 6, wherein sliding guide rails (405) for sliding fit with the shield machine (1) are provided on the inner walls of the starting sleeve (401) and the receiving sleeve (402) along the circumferential direction, the sliding guide rails (405) of the starting sleeve (401) are provided along the axial direction of the starting sleeve (401), and the sliding guide rails (405) of the receiving sleeve (402) are provided along the axial direction of the receiving sleeve (402).
8. The mud-water balance shield tunneling machine for the communication channel according to any one of claims 1-7, wherein the cutterhead (101) is a spherical cambered cutterhead, and shield cutters (1012) are arranged on both the cambered panel (1011) and the radial arm (1013) of the cutterhead (101).
9. A slurry balance shield machine for communication channels according to any one of claims 1-7, wherein the segment erector (105) is a mechanical gripping erector, and the translation frame (1052) of the segment erector (105) for transporting segments is a T-shaped single beam structure.
10. The mud balance shield machine for the communication channel as claimed in any one of claims 1 to 7, wherein the rear mating accessory comprises a rear mating trolley (201), and the control system (205), the electrical system (204) and the hydraulic system (203) are arranged on the shield machine (1) and the rear mating trolley (201).
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| CN202110980856.XA CN113482646A (en) | 2021-08-25 | 2021-08-25 | Slurry balance shield machine for communication channel |
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Cited By (1)
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| CN117287225A (en) * | 2023-11-23 | 2023-12-26 | 中国矿业大学(北京) | TBM construction equipment and method for magnetic suspension track and duct piece integrated lining assembly |
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