CN102086767A - Mud water balanced-type ring-shaped shield machine - Google Patents
Mud water balanced-type ring-shaped shield machine Download PDFInfo
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- CN102086767A CN102086767A CN 200910200068 CN200910200068A CN102086767A CN 102086767 A CN102086767 A CN 102086767A CN 200910200068 CN200910200068 CN 200910200068 CN 200910200068 A CN200910200068 A CN 200910200068A CN 102086767 A CN102086767 A CN 102086767A
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Abstract
The invention relates to a mud water balanced-type ring-shaped shield machine comprising a ring-shaped case, a mud water cabin, a slurry pump, a slurry processing device, two ring-shaped sealing devices, a plurality of thrust cylinders, a bearing and a duct piece disassembly and assembly device used for disassembling old duct pieces and disassembling new duct pieces, wherein, the head end of the case is provided with a cutter head which is uniformly provided with a plurality of hobbing cutters, scrapers and orifices; the mud water cabin is arranged in the case, and is connected with the orifices; the slurry pump, the mud water cabin and the slurry processing device are connected; the two ring-shaped sealing devices are arranged between the case and the old duct pieces at intervals; the plurality of thrust cylinders are evenly arranged at the periphery of the case; the bearing penetrates in the case; and the duct piece disassembly and assembly device is arranged on the bearing. The mud water balanced-type ring-shaped shield machine provided by the invention is convenient and efficient, and has wide use range.
Description
Technical field
The present invention relates to the tunnel and transform mechanism, particularly relate to a kind of slurry-water balance type annular shield machine.
Background technology
In recent years, the construction of city underground and common trench constantly develops, and the quantity of subterranean tunnel and scale are also increasing.Along with the growth of operation and service time, the performance of established tunnel and quality are inevitable to descend thereupon, loses safe application performance the most at last.Meanwhile, along with the progressively expansion of underground space development, urban underground space will seem crowded all the more, in order to satisfy growing urban traffic demand, enlarge the subway tunnel diameter possibly, form layer stereo formula railway and highway system.Therefore, in order to guarantee the normal operation and the daily life of urban traffic, must change circuit and build new tunnel or the old tunnel that loses functional performance is transformed.Yet be about to future of being tending towards saturated at urban underground space, on the one hand, the change circuit will certainly cause the underground space more crowded, strengthens the raising that cutting depth must cause difficulty of construction and risk; On the other hand, discarded tunnel must take the valuable underground space, and discarded simultaneously tunnel is the whole damage inactivation of possibility at any time, causes the distortion of surrounding soil, closely influences the adjacent line or the safety of building, is a great potential risk hidden danger.Therefore, best bet is that existing tunnel is transformed, yet adopt cut and cover tunneling big and along with the increase of edpth of tunnel, the difficulty of construction of cut and cover method and risk also will increase thereupon, be the most economical and safe so adopt non-excavation form to surrounding environment influence.Therefore research and develop and a kind ofly be applicable to that the novel shield structure that existing tunnel is transformed is a problem with far-reaching significance.
Summary of the invention
Technical problem to be solved by this invention is exactly to provide a kind of slurry-water balance type annular shield machine for the defective that overcomes above-mentioned prior art existence.
Purpose of the present invention can be achieved through the following technical solutions: a kind of slurry-water balance type annular shield machine, it is characterized in that, the housing that comprises annular, the muddy water storehouse, slush pump, the mud conditioning device, the twice annular seal, a plurality of propelling oil cylinders, the section of jurisdiction attaching/detaching apparatus that holds axle and be used to remove old section of jurisdiction and the new section of jurisdiction of assembly unit, the head end of described housing is provided with cutterhead, evenly be provided with a plurality of hobboing cutters on this cutterhead, scraper and aperture, described muddy water storehouse is located in the housing, and be connected with the aperture, described slush pump is connected with muddy water storehouse and mud conditioning device, described twice annular seal is located between housing and the old section of jurisdiction by spacing, described a plurality of propelling oil cylinder evenly be located at housing around, the described axle that holds is arranged in the housing, and described section of jurisdiction attaching/detaching apparatus is located at and is held on the axle.
The present invention comprises that also three road steel wire shield tails seal brush from the inboard to the outside, and wherein outermost sealing brush is the removable seal brush, and three road steel wire shield tails sealings are filled with grease between brushing.
Described annular seal comprises nitrile rubber pad, fastener for installing, pressurization bar and sealing mat jack, described nitrile rubber pad is fixed on the fastener for installing, be provided with air bag in this nitrile rubber pad, described pressurization bar is located on the fastener for installing, and the tail end of described sealing mat jack and fastener for installing is in transmission connection.
Described section of jurisdiction attaching/detaching apparatus comprises walking mechanism and hydraulic jack, and described walking mechanism is located at and is held on the axle, and described hydraulic jack is located on the walking mechanism.
Compared with prior art, the present invention has the following advantages:
1. utilize annular cutterhead that shield structure the place ahead soil body is cut, can excavate the tunnel of different-diameter as requested, realize transformation existing tunnel;
2. can improve suitable soil layer scope of the present invention by adjusting otch rate, hobboing cutter quantity, scraper and the layout of hobboing cutter and the proportioning of bentonite slurry;
3. muddy water and underground water are invaded the tunnel and are kept excavation face mud hydraulic pressure when preventing knife cutting, adopt twice nitrile rubber bellows inflatable seal pad, can adjust the blowing pressure according to actual conditions, keep the mud hydraulic pressure of excavation face and realize sealing and sealing function by compressed-air actuated expansion and contraction;
4. adopt the novel duct piece assembling machine of scalable brachium, realize the assembly unit of the new section of jurisdiction of dismounting of old section of jurisdiction and different-diameter by adjusting the assembling machine brachium, collector sheet assembly unit and dismantle in one and saved the shield conformational space has made things convenient for the transportation of section of jurisdiction.
Description of drawings
Fig. 1 utilizes annular shield machine existing tunnel to be transformed the overall synoptic diagram of worker's method;
Fig. 2 is annular shield machine constructional detail;
Fig. 3 is the A-A sectional drawing of Fig. 1;
Fig. 4 is annular shield machine sealing mat section detailed construction figure.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
Shown in Fig. 1-4, a kind of slurry-water balance type annular shield machine, the housing 1 that comprises annular, muddy water storehouse 3, slush pump 4, mud conditioning device 13, the twice annular seal, a plurality of propelling oil cylinders 5, the section of jurisdiction attaching/detaching apparatus 9 that holds axle 20 and be used to remove old section of jurisdiction 11 and the new section of jurisdiction 12 of assembly unit, the head end of described housing 1 is provided with cutterhead 2, evenly be provided with a plurality of hobboing cutters 17 on this cutterhead 2, scraper 18 and aperture, described muddy water storehouse 3 is located in the housing, and be connected with the aperture, described slush pump 4 is connected with muddy water storehouse 3 and mud conditioning device 13, described twice annular seal is located between housing 1 and the old section of jurisdiction 11 by spacing, described a plurality of propelling oil cylinder 5 evenly be located at housing 1 around, the described axle that holds is worn 20 and is located in the housing 1, and described section of jurisdiction attaching/detaching apparatus is located at and is held on the axle 20.
The present invention comprises that also three road steel wire shield tails seal brush 8 from the inboard to the outside, and wherein outermost sealing brush is the removable seal brush, and three road steel wire shield tails sealings are filled with grease between brushing; Described annular seal comprises nitrile rubber pad 6, fastener for installing 21, pressurization bar 23 and sealing mat jack 7, described nitrile rubber pad 6 is fixed on the fastener for installing 21, be provided with air bag 23 in this nitrile rubber pad 6, described pressurization bar 23 is located on the fastener for installing 21, and described sealing mat jack 7 is in transmission connection with the tail end of fastener for installing 22; Described section of jurisdiction attaching/detaching apparatus 9 comprises walking mechanism and hydraulic jack 10, and described walking mechanism is located at and is held on the axle 20, and described hydraulic jack 10 is located on the walking mechanism.
Concrete implementing procedure is: shield structure propelling--remove old section of jurisdiction---Xin pipe sheet assembling.Its operating principle is: utilize the peripheral soil body in old tunnel, annular knife cutting the place ahead; By pressurization and pressure-retaining system, utilize bentonite slurry to keep the excavation face stability; The soil body that cuts enters the muddy water storehouse by the aperture on the cutterhead, mixes forming high-density slurry with the bentonite slurry of input, is delivered to ground muddy water treatment pond by slush pump again; Bipassage ring shaped inflatable rubber gasket sealing is set between shield structure and old section of jurisdiction and keeps the excavation mud hydraulic pressure of side in front; The shield tail is provided with three road steel wire shield ventral brushes, fills shield tail oil fat between three road shield ventral brushes, and wherein last one shield ventral brush can be removed replacing; Utilization is arranged in the novel duct piece assembling machine of the scalable brachium in slush pump the place ahead and removes old section of jurisdiction and the new section of jurisdiction of assembly unit, and new and old section of jurisdiction is by the end well transportation of battery truck from shield structure direction of propulsion.
The mode that above-mentioned shield machine annular cutterhead adopts hobboing cutter and scraper to combine is cut the place ahead soil body, and cutterhead size and layout should design according to strata condition around requirement of new tunnel and the old tunnel.
Above-mentioned shield machine pressurization bentonite slurry is to utilize the swell soil that configures and the mixture of water, injects the sealed compartment that dividing plate has been installed in shield structure front portion, utilizes pressurization and pressure-retaining system to form the muddy water storehouse with certain pressure, thereby keeps stablizing of excavation face.
The soil body that above-mentioned shield machine cutting gets off enters in the muddy water storehouse by the aperture that is distributed on the cutterhead, and mixes back formation high-density slurry with the bentonite slurry of input, under the condition that keeps muddy water storehouse certain pressure, be transported in the mud conditioning pond, ground by deslagging pump.
Above-mentioned shield machine is provided with bipassage ring shaped inflatable rubber gasket between shield structure housing front portion and old section of jurisdiction, sealing is lined with two functions: keep excavation face mud hydraulic pressure and hermetic seal.Adopt nitrile rubber sylphon seal pad, utilize the joint ring jack to adjust the sealing mat position, itself and shield structure are advanced synchronously.For fear of the damage that causes owing to the slip between nitrile rubber sylphon seal pad and the pipe-plate lining periphery, the spy has equipped fixedly usefulness (during replacing) and mobile with (during driving) two row's sealing mats, realizes sealing and the sealing function by compressed-air actuated expansion and contraction.
Above-mentioned shield machine shield tail is provided with three road steel wire shield ventral brushes, prevents that outside water, soil and injecting paste material from flowing in the tunnel from the gap of shield tail and section of jurisdiction.Fill shield tail oil fat between three road shield ventral brushes, wherein can remove replacing together at last, grease with continuous loss, needs constantly to replenish in shield structure progradation.
Above-mentioned shield machine is provided with the duct piece assembling machine of scalable brachium in shield structure front portion, after the shield structure advances a ring, the dismantle bolt of old section of jurisdiction, adjust the assembling machine brachium and remove requirement to satisfying old section of jurisdiction, utilize duct piece assembling machine dismantled and utilized assembling machine to lining segment running mechanism with the section of jurisdiction handling to battery truck, transfer out the tunnel by battery truck along shield structure direction of propulsion, play tunnel duct piece again, the running mechanism that utilizes assembling machine with the lifting of new section of jurisdiction to the installation site, and then adjust the assembling machine brachium to satisfying new built tunnel piping requirement, new tunnel duct piece is carried out assembly unit.
Embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, annular shield machine of the present invention comprises housing 1, and housing 1 front end is annular cutterhead 2.On the annular cutterhead 2 hobboing cutter 17 and scraper 18 are set simultaneously, hobboing cutter 17 rolls by extruding and self, comes broken than lump stone.Run into the weak soil layer, hobboing cutter 17 is ineffective, relies on scraper 18 this moment, relies on the rotation of cutterhead 2 bearings 25, the cutting weak soil.It is the combination of two kinds of cuttves that actual shield structure advances.
As depicted in figs. 1 and 2, cutterhead 2 rear portions are muddy water storehouse 3, and muddy water storehouse 3 is connected with slush pump 4.The soil body that shield machine cutting gets off enters in the muddy water storehouse 3 by the aperture that is distributed on the cutterhead 2, and mixes back formation high-density slurry with the bentonite slurry of input, under the condition that keeps muddy water storehouse 3 certain pressures, be transported to ground by slush pump 16, after mud disposal system 13 processing, be discharged in the mud conditioning pond 15.
As depicted in figs. 1 and 2, arranging propelling oil cylinder 5 around the shield structure housing 1, and the support boots 19 that jack external part head is installed can be delivered to propulsive force on the new tunnel duct piece 12 equably, thereby the balance that guarantees the shield structure advances.
As shown in Figure 1 and Figure 4, muddy water and underground water are invaded the tunnel and are kept excavation face mud hydraulic pressure when preventing knife cutting, adopt twice nitrile rubber bellows inflatable seal pad 6, utilize fastener for installing 21 that nitrile rubber pad 22 is fixing, the pressure that utilizes pressurization bar 23 to keep in the sealed compartment, adjust the blowing pressure according to actual conditions, the expansion of air bag 23 compressed airs by nitrile rubber pad 22 and shrink the mud hydraulic pressure that keeps the excavation face and realize sealing and sealing function, for reducing the friction between sealing sealing mat 6 and section of jurisdiction periphery, prolong the application life of sealing sealing mat 6, regularly inject lubricant grease in nitrile rubber pad 22 peripheries by grease pump (not shown) before the shield.When the shield structure advances,, can make two seals pad 6 and shield structure advanced in unison, thereby guarantee the safety of shield-tunneling construction by adjusting the stroke of sealing mat jack 7.
As shown in Figure 2, section of jurisdiction attaching/detaching apparatus 9 moves around on bearing 20 by running mechanism, old section of jurisdiction that transportation disassembles and the new section of jurisdiction that is used for assembly unit, adjust brachium by hydraulic jack 10, when removing old section of jurisdiction 11, adjust the stroke of hydraulic jack 10 and remove the requirement of old section of jurisdiction to satisfying, carry out 11 dismountings of old section of jurisdiction and old section of jurisdiction is transported to interim stacking place, play section of jurisdiction again, on bearing 20, move to the assembly unit position, the stroke of adjusting hydraulic jack 10 is carried out the assembly unit of new section of jurisdiction 12 to satisfying new pipe sheet assembling requirement.
As shown in Figure 2, the shield tail is provided with three road steel wire shield tail sealing brushes 8, wherein can remove replacing together at last.Between three road wire brushes, be filled with shield tail oil fat, thereby realize the purpose of shutoff mud.In shield structure progradation, utilize shield tail grease pump (not shown) constantly to replenish shield tail oil fat and guarantee the reliability of shield tail sealing.
Claims (4)
1. slurry-water balance type annular shield machine, it is characterized in that, the housing that comprises annular, the muddy water storehouse, slush pump, the mud conditioning device, the twice annular seal, a plurality of propelling oil cylinders, the section of jurisdiction attaching/detaching apparatus that holds axle and be used to remove old section of jurisdiction and the new section of jurisdiction of assembly unit, the head end of described housing is provided with cutterhead, evenly be provided with a plurality of hobboing cutters on this cutterhead, scraper and aperture, described muddy water storehouse is located in the housing, and be connected with the aperture, described slush pump is connected with muddy water storehouse and mud conditioning device, described twice annular seal is located between housing and the old section of jurisdiction by spacing, described a plurality of propelling oil cylinder evenly be located at housing around, the described axle that holds is arranged in the housing, and described section of jurisdiction attaching/detaching apparatus is located at and is held on the axle.
2. a kind of slurry-water balance type annular shield machine according to claim 1, it is characterized in that, comprise that also three road steel wire shield tails seal brush from the inboard to the outside, wherein outermost sealing brush is the removable seal brush, and three road steel wire shield tails sealings are filled with grease between brushing.
3. a kind of slurry-water balance type annular shield machine according to claim 1 and 2, it is characterized in that, described annular seal comprises nitrile rubber pad, fastener for installing, pressurization bar and sealing mat jack, described nitrile rubber pad is fixed on the fastener for installing, be provided with air bag in this nitrile rubber pad, described pressurization bar is located on the fastener for installing, and the tail end of described sealing mat jack and fastener for installing is in transmission connection.
4. a kind of slurry-water balance type annular shield machine according to claim 3 is characterized in that described section of jurisdiction attaching/detaching apparatus comprises walking mechanism and hydraulic jack, and described walking mechanism is located at and is held on the axle, and described hydraulic jack is located on the walking mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910200068 CN102086767B (en) | 2009-12-07 | 2009-12-07 | Mud water balanced-type ring-shaped shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910200068 CN102086767B (en) | 2009-12-07 | 2009-12-07 | Mud water balanced-type ring-shaped shield machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102086767A true CN102086767A (en) | 2011-06-08 |
| CN102086767B CN102086767B (en) | 2012-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910200068 Expired - Fee Related CN102086767B (en) | 2009-12-07 | 2009-12-07 | Mud water balanced-type ring-shaped shield machine |
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| CN (1) | CN102086767B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359379A (en) * | 2011-09-21 | 2012-02-22 | 上海隧道工程股份有限公司 | Annular shield machine and tunnel construction method |
| CN102507163A (en) * | 2011-10-10 | 2012-06-20 | 沈阳重型机械集团有限责任公司 | Test loading device for shield tunneling machine under high water pressure |
| CN107387103A (en) * | 2017-08-22 | 2017-11-24 | 华东交通大学 | A kind of reconstruction construction method of shield tunnel |
| CN110439575A (en) * | 2019-07-22 | 2019-11-12 | 马超 | Miniature hard rock mole shield body stabilizer |
| CN112943319A (en) * | 2021-04-06 | 2021-06-11 | 中冶华南建设工程有限公司 | Sealing water-stopping structure for shield tunneling machine to enter and exit tunnel and construction process |
| WO2022227787A1 (en) * | 2021-04-26 | 2022-11-03 | 孟小玲 | Hollow rotary rock tunnel boring machine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100519989C (en) * | 2005-08-17 | 2009-07-29 | 上海市基础工程公司 | Combined balance shield machine |
| JP5169160B2 (en) * | 2007-11-13 | 2013-03-27 | 株式会社大林組 | Cast-in-place lining shield method and shield machine |
| CN101191417A (en) * | 2007-12-21 | 2008-06-04 | 沈阳重型机械集团有限责任公司 | Bentonite mud water pressurization equilibration shield machine |
-
2009
- 2009-12-07 CN CN 200910200068 patent/CN102086767B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359379A (en) * | 2011-09-21 | 2012-02-22 | 上海隧道工程股份有限公司 | Annular shield machine and tunnel construction method |
| CN102359379B (en) * | 2011-09-21 | 2013-10-23 | 上海隧道工程股份有限公司 | Tunnel construction method |
| CN102507163A (en) * | 2011-10-10 | 2012-06-20 | 沈阳重型机械集团有限责任公司 | Test loading device for shield tunneling machine under high water pressure |
| CN107387103A (en) * | 2017-08-22 | 2017-11-24 | 华东交通大学 | A kind of reconstruction construction method of shield tunnel |
| CN110439575A (en) * | 2019-07-22 | 2019-11-12 | 马超 | Miniature hard rock mole shield body stabilizer |
| CN112943319A (en) * | 2021-04-06 | 2021-06-11 | 中冶华南建设工程有限公司 | Sealing water-stopping structure for shield tunneling machine to enter and exit tunnel and construction process |
| CN112943319B (en) * | 2021-04-06 | 2023-11-03 | 中冶华南建设工程有限公司 | Sealing water stopping structure for shield entering and exiting holes and construction process |
| WO2022227787A1 (en) * | 2021-04-26 | 2022-11-03 | 孟小玲 | Hollow rotary rock tunnel boring machine |
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| Publication number | Publication date |
|---|---|
| CN102086767B (en) | 2012-12-05 |
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Granted publication date: 20121205 Termination date: 20161207 |