CN203922522U - A kind of shield machine broken-up and hanging goes out well system - Google Patents
A kind of shield machine broken-up and hanging goes out well system Download PDFInfo
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- CN203922522U CN203922522U CN201420131361.5U CN201420131361U CN203922522U CN 203922522 U CN203922522 U CN 203922522U CN 201420131361 U CN201420131361 U CN 201420131361U CN 203922522 U CN203922522 U CN 203922522U
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Abstract
The utility model discloses a kind of shield machine broken-up and hanging and go out well system, comprise lifting, hang the hanging apparatus of tearing shield machine open, it is characterized in that: described hanging apparatus is crawler crane (9); Described shield machine is provided with hanger (1), (2), (3); Crawler crane comprises main hook (10), auxiliary hook (11), steel rope, shackle or grab; Described shield machine comprises cutterhead (4), anterior shield (5), middle shield (6), tail shield (7).The shield structure well of described shield machine is made as building enclosure; The shield machine broken-up and hanging of the utility model design goes out well system, has both ensured to lift to construct smoothly, has ensured again device security and personal security.In building operation, there is great reference, promotional value, have good society and economic benefit.
Description
Technical field
The utility model relates to building field construction broken-up and hanging system, and the shield machine broken-up and hanging that relates in particular to a kind of subway goes out well system.
Background technology
Due to social development, the situation in the place of construction becomes increasingly complex, especially the construction of metro shield enter that well is installed or broken-up and hanging to go out the requirement of well construction more and more higher.For example, when construction, relate to interval ground elevation along the line, railroad section is longitudinal, the tunnel longitudinal gradient gradient, buried depth at the bottom of running tunnel; Ground along the line buildings or structures; The underground utilities such as the rainwater, sewage, combustion gas, electric power that present situation road both sides distribute etc. all can affect normally carrying out of construction; Especially how shield machine goes out well after using and finishing smoothly, can not cause mechanical equipment loss and personnel's injures and deaths, and in construction, tool is of great significance.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of shield machine broken-up and hanging and goes out well system, has fast, efficient, construction safety, the stable effect that possesses skills of use.
Technical problem to be solved in the utility model is achieved through the following technical solutions:
A kind of shield machine broken-up and hanging goes out well system, comprises lifting, hangs the hanging apparatus of tearing shield machine open, and described hanging apparatus is crawler crane; Described shield machine is provided with hanger; Crawler crane comprises main hook, auxiliary hook, steel rope, shackle or grab; Described shield machine comprises cutterhead, anterior shield, middle shield, tail shield.
The shield structure well of described shield machine is made as building enclosure; Described building enclosure Horizontal Displacement standard is for being less than or equal to accumulated deformation 10mm, rate of deformation 1.5mm/ time; Hoisting platform settlement point standard is for being less than or equal to ground settlement 20mm, rate of deformation 2mm/ time.
Shield machine hanger is set to cutterhead and 4 of suspension centres, anterior shield are set 6, middle shield are set 6, tail shield are set arrange 6.
The acceptance frame that also comprises fixing shield structure structure main frame, is welded on the hanger on shield cutter; Described cutterhead is reserved 16 bolt of rear end plates, each 4 up and down; Shield machine top is moved to the propelling cylinder in acceptance frame front; Support the bracing frame of main process equipment connecting bridge; Drag the battery locomotive of trailer, equipment connection bridge; After main frame, join trailer; The shaped steel that welding is supported in shield tail; Separate hydraulic power unit and the oil cylinder of anterior shield, middle shield.Shield body both sides are welded with baffle plate, and described pedestal is connected with shifting board with bolt; Promote the separated type hydraulic jack of shield body.
Described hanging apparatus also comprises whipline.
The heavy 92t of load of described hanging apparatus; The maximum pull of the every independent tension of energy of steel rope is 238.32 tons; Described main hook is 130 tons of loads, and auxiliary hook is 80 tons of loads; 55 tons 4 of described main hook shackles; 35 tons 2 of auxiliary hook shackles; 133.5 tons of described crane rated loads; Crawler belt over the ground load is: 57kPa; The maximum substance of described hanger precursor bearing capacity is 92t, hanger thickness T=40mm.
Described hanger is the hanger that cleans penetrant inspection agent inspection weld through solvent-borne type.
Also comprise the jack of shield launching base frame, shield machine.
Also comprise withdrawing device: lever hoist, chain block, welding generator, gas cutting equipment, air nutsetter, socket wrench, hydraulic spanner, hydraulic tensioning spanner, heavy sleeve, angle grinding machine.
The utility model beneficial effect:
The shield machine broken-up and hanging of the utility model design goes out well system, meticulous selection from hanging apparatus main body to each lifting part, each lifting link and assemble and dismounting mode on all reach and have best selection, both ensured dismounting and lifted to construct smoothly, device security and personal security are ensured again, in building operation, there is great reference, promotional value, have good society and economic benefit.
Brief description of the drawings
Fig. 1 is cutterhead hanger arrangement plan
Fig. 2-1, Fig. 2-2 are middle shield hanger arrangement plan
Fig. 3-1, Fig. 3-2 are tail shield hanger arrangement plan
Fig. 4-1, Fig. 4-2 upset flow process
Fig. 5 tears machine diagram of circuit open
Fig. 6 cutterhead lifting schematic diagram
Fig. 7 shield tail lifting schematic diagram
Shield lifting schematic diagram figure in Fig. 8
Fig. 9 anterior shield lifting schematic diagram
Figure 10 screw conveyer hangs out signal
Figure 11-1, Figure 11-2, Figure 11-3, Figure 11-4, Figure 11-5, Figure 11-6, Figure 11-7 are disassembling operation hoisting process
Figure 12 shield structure lifting schematic diagram
Aisle figure is laid under loop wheel machine crawler belt in Figure 13-1, Figure 13-2
Figure 14-1, Figure 14-2 shield machine anterior shield, middle shield hanger figure
The logical right line shield structure received well of Figure 15 China tunnel lifts out well planar view
Detailed description of the invention
Embodiment
The purpose of this utility model is that a kind of shield machine broken-up and hanging in order to allow Suporting structure in shield tunnel remove well smoothly and to arrange goes out well system.
Line shield structure received well as right in Figure 14 lifts out well planar view, be positioned at Beijing Metro No. 6 line second phase 16 new city stations, contract section east～eastern little battalion station interval by new city station, east eastwards, arrange along north side, East Street, canal, pass through greenery patches, crossing, Song Lang road along the line, arrive eastern little battalion station.The interval shield construction that adopts, design mileage K41+857～K42+699.Shield structure interval is made up of up, 2 shield tunnels of downlink of walking abreast.The brand-new earth pressure balance shield machine that Suporting structure selects Beijing Hua Suitong company to produce, left line arrives received well, disintegrates, lifts out well at this, and assembling is gone into the well, debugged to transition immediately to right line starting well; Driving, broken-up and hanging goes out well.
First design received well hole for hoist well head size, meet lifting requirements.Need the shield machine that disintegrates and lift to comprise: shield, shield machine tail shield in cutter head of shield machine, shield machine anterior shield, shield machine.Situation is as follows:
| Sequence number | Component names | Oad | Weight | Swinging radius | 250T crawler crane rated load |
| 1 | Cutter head of shield machine | 6180mm×1100mm | 28T | 14m | 82T |
| 2 | Shield machine anterior shield | 6160mm×3300mm | 92T | 8.5m | 161.45T |
| 3 | Shield in shield machine | 6160mm×3800mm | 90T | 8.5m | 161.45T |
| 4 | Shield machine tail shield | 6150mm×3650mm | 45T | 7m | 198.8T |
Starting well at shield machine designs hole for hoist, adopts supporting pile structure form.Place gut line changes to move and completes, and shield structure received well is ferro-concrete hardened ground.Lift out well order: left line shield structure receives, and left line lifts out well; Right line shield structure receives, and right line lifts out well.
1. shield structure is torn the preparation of machine facility open: before shield structure is appeared, each relevant facility put in place, and also guaranteed performance is good.Lifting, hang the main mechanical of tearing use open and comprise: initiator mounting, hydraulic jack, common hydraulic power unit, lever hoist, chain block, welding generator, gas cutting equipment, air nutsetter, socket wrench, hydraulic spanner, hydraulic tensioning spanner, heavy sleeve, angle grinding machine etc.
Also comprise the required facility of shield machine lifting: crawler crane, U-shaped snap ring, steel rope, jack, burning torch, welding generator, safety strap, the lumps of wood, sleeper etc.
Crane enters before scene, must be by lifting requirements cleaning, layout lifting planning region, and carry out cure process and consolidation process: sclerosis scope is near waterwall edge, area is to ensure crane center of gyration, reinforcing scope is near waterwall edge, taking tunnel axis as center line both sides laterally, longitudinally reinforce respectively.
As the Guan Liang of slope protection pile props up car ground lower than crawler belt, while propping up car, keep a safe distance with it.Transport vehicle arrives assigned address by predetermined scheme, and all trailers and other are transported into on-the-spot parts, must not hinder crane lifting operation, and avoid Secondary Transport.Field requirement is smooth, and the doorway of coming in and going out ensures width, near doorway, can not put other article, and ground compression resistance meets crane, transport trolley walking requirement, and in institute, the obstacle of impact lifting needs to remove, and need have good illumination night.Receive pedestal installation according to the rules.
2. lifting monitoring, by the monitoring to building enclosure in shield structure hoisting process, reaches following object: (1) grasps shield structure well termination building enclosure and support system situation of change in each hoisting process.(2) by the analysis to monitoring data, judge that shield structure lifts the degree of safety to building enclosure influence degree and foundation ditch.(3) tissue of construction monitoring and information feedback.To instruct the speed of lifting process and lifting.Contents for Monitoring as shown in the table and control criterion table:
3. hanger setting, as shown in Figure 1, Figure 2-1, Fig. 2-2, Fig. 3-1, Fig. 3-2 arrange for shield machine vitals hanger: cutterhead arranges 4 of suspension centres, anterior shield and 6, middle shield are set 6, tail shield are set arrange 6.Hanger adopts and is welded and fixed form, and all hangers and weld zone all carry out magnetic particle inspection, detects a flaw after qualified and can use.
4, turn-over method: the SCC2500C of SANY company crawler crane has independent upset ability as shown in Fig. 4-1, Fig. 4-2, while upset voluntarily, main hook rises, and auxiliary hook falls, until the complete upset in 90 ° of fuselage.When SCC2500C crawler crane stands up, be connected with shield body with 4 main ropes, two hangers of 2 auxiliary hook ropes and the external sides of shield are connected, main hook auxiliary hook hoists simultaneously, and when built on stilts 200mm, main hook hooks up with 0.5 m/min, auxiliary hook is with 0.5/ point of off the hook, keep steady speed, shield body stands up in process and keeps 200mm with ground all the time, until the complete upset in 90 ° of fuselage.
Main hook: 250 tons of crawler belt main hooks of SCC2500 type are selected 130 tons of hooks, wherein 3.1 tons of suspension hook deadweights, wear five and take turns 11 strands; With 19.5 meters of principal arm liftings.While starting to stand up, lift 6 meters of swinging radiuss, 50 tons of crane lifting loads, comprise 1/2 of shield structure component weight, add that rope tool and suspension hook are from 4 tons of restatements, now 221.8 tons of main hook rated loads, crane loading coefficient 22.543%, i.e. crane performance table 75% Lifting Capacity; Along with the slow setting of shield structure parts, main hook carrying increases gradually, until bear the total weight of shield structure parts, and slow luffing to 8.5 meter, now 161.45 tons of crane rated loads, crane loading coefficient 59.46%, now shield structure is erect completely, in single hook block dress state, meet the specification safety requirements of shield structure lifting.
Auxiliary hook: auxiliary hook is selected 80 tons of hooks, wherein 1.5 tons of suspension hook deadweights, wear three-wheel seven strands; With 19.5 meters of principal arms and 7 meters of auxiliary liftings.12 meters of auxiliary hook crane lifting service radiuses, 48.5 tons of crane lifting loads, comprise 1/2 of shield structure component weight, add that rope tool and suspension hook are from 2.5 tons of restatements, now 77.9 tons of crane rated loads, crane peak load coefficient 62.26%, i.e. crane performance table 75% Lifting Capacity; Along with hoisting of main hook, the auxiliary hook load of auxiliary slipping tail reduces gradually, until be zero also decoupling device; Crane load coefficient also reduces gradually, the product design requirement that the load coefficient of whole process all lifts lower than the major-minor hook of shield structure Special-purpose hanger.
Stand up the cooperation that will pay special attention to major-minor hook in process, make the slowly slippage that is close to the ground of shield structure lower bottom part, prevent that single hook, single rope are stressed, and sharply locate to pad corner protector at corner angle, strengthen the protection to rope.In addition, observe note lifting and when upset hanger and the strained condition of shackle, prevent that shackle from sliding suddenly, being subject to curved.
5. shield structure is torn machine open and is hung out
Dead work: comprise the acceptance inspection of personnel and hanging device and putting in place of plan of work.
Shield structure is torn machine diagram of circuit open as shown in Figure 5: shield machine arrives and hangs out before well and facility the material required machine of tearing open and hanger must be put and put in place, and all breakpoints marks must complete.Before shield hoisting, tie bolt, pipeline etc. must be removed completely.Shield hoisting be mainly divided into main frame with after join that trailer separates, main frame is torn machine open and hung out.
(1) shield machine air is pushed to acceptance frame: after originating station guide rail is clean, smear enough lubricating greases on guide pass, cleaning dregs.
(2) cutterhead hangs out schematic diagram as shown in Figure 6: after shield structure main frame is appeared, by fixing acceptance frame location, utilize propelling cylinder that shield machine is passed to upper acceptance frame, consider that cutterhead is heavier, release can be welded cutterhead hanger behind hole.On cutterhead, before acceptance frame, determine the position of weld of hanger by rotary head, before welding hanger, weld must be polished flat.Cutterhead hangs out front reserved 16 bolt of rear end plates, each 4 up and down, adds in advance the remaining bolt of rear end plate of first up and then down dismounting after 5 ton forces after hanging up properly hook.
(3) main frame with after join trailer and separate: after cutterhead hangs out, utilize propelling cylinder shield machine top to be moved to the forefront of acceptance frame, facilitate main frame to tear machine open, equipment bridge is supported and reinforced with the bracing frame of well in advance, remove dilatory oil cylinder, utilize battery locomotive after trailer, to move, complete main frame with after join separating of trailer.Being welded on of main frame hanger just can start welding after acceptance frame on main frame, welded to detect with flaw detection agent afterwards.
(4) disassemble chassis transhipment: after main frame separates with chassis, disassemble cable between chassis, and cable between chassis and main frame.Then use section steel reinforcement chassis, prevent chassis modification.Then by 7,6,5,4,3,2, No. 1 chassis is transported to the left line in new city station, the east well head that starts with storage battery car successively, utilizes gauntry crane to turn to winch to the right line well head in place that starts.Chassis transhipment and main frame are disassembled lifting and are synchronously carried out.
(5) tear conveyor screw open: main frame with after join after trailer separates, start to tear open conveyor screw.First remove shield tail and middle shield tie bolt, separately middle shield and shield tail, then utilize extension jack in main frame to coordinate with crane, conveyor screw dismantled and be placed on the dolly of section of jurisdiction, draws in tunnel, tears machine open reserve working space for main frame.
(6) shield tail hangs out schematic diagram as shown in Figure 7: remove after conveyor screw, utilize shaped steel in shield tail, to weld support, can not affect hanging out of shield tail, to reduce deflection, the hinged oil cylinder of simultaneously dismantling, utilizes the main and auxiliary hook of crawler crane that shield tail is hung out, the entrucking of then overturning.
(7) front, middle shield separates: utilize hydraulic power unit and oil cylinder, anterior shield, middle shield are moved to crane direction top, and anterior shield, middle shield are separated completely.
(8) as shield lifting schematic diagram in Fig. 8, Fig. 9 anterior shield lifting schematic diagram: after anterior shield, middle shield separate, at shield body both sides welding baffle plate, and at shifting board in bolt connection for pedestal, pass 4m to reverse tunnel direction with the separated type hydraulic jack of the 250t getting ready, to meet on-the-spot status requirement.During for the upset of middle shield, will pay special attention to major-minor hook and stand up the cooperation in process, the strained condition of hanger and buckle while noting observing lifting and upset, prevents that single hook, single rope are stressed, avoids buckle to slide suddenly, be subject to curved.Middle shield hangs out and overturns with crawler crane afterwards.
(9) anterior shield hangs out: utilize equally hydraulic power unit and oil cylinder, anterior shield is moved to the operating radius while as far as possible reducing crane lifting to crane direction top.Anterior shield hangs out rear with crawler crane upset, and Figure 13-1, Figure 13-2 are shown in hanging out of anterior shield.
(10) as Figure 10 spiral conveyor hanging goes out schematic diagram: main frame hangs out, lay after the track that hangs out Jing Chu, conveyor screw is dragged to and hangs out well, then conveyor screw is hung out.
(11) hanging out of equipment connection bridge: before hanging out, first will lay storage battery car track to received well, and then utilize storage battery car that equipment connection bridge is dragged to well head and hangs out.
5. hoisting machine tool is adjusted
(1) selection of hanging device
Shield structure heaviest piece is anterior shield.Because of wheel crane operation floor area large, carrying out large part upset must coordinate with whipline, considers the working space of shield structure main frame upset and the entrucking of transport vehicle, in the time hanging out shield machine, the necessary erect-position main road in station of whipline, causes vehicle to pass through.And crawler crane only needs assembling, takies part main road while tearing machine open, the upset of shield structure main frame does not need whipline, can directly assist upset with the auxiliary hook of crawler crane self, and operation floor area is little.In addition, crawler crane good stability, load-carrying capacity is large, and grounding pressure is little, and road pavement requires low, and does not need to make a jack, and can be with to carry and travel, and the advantages such as convenient working, therefore select crawler crane to complete shield machine and hang out work.
This is separated body construction and adopts 250 tons of crawler cranes of SCC2500C type, and long 13.7 meters of this crane main frame is wide 3.4 meters, high 3.4 meters, 59 tons; Longitudinally long 9.15 meters, crawler belt, wide 1.22 meters, 10.212 meters of ground contact areas
2, weigh 27 tons, laterally outer wide 7.681 meters, 113 tons of crane deadweights, 109.2 tons of counterweights, 280 tons of ground connection maximum pressures; The 19.5m principal arm operating mode of SFH is applicable to the shield machine lifting that subway work is used, and without with auxiliary hoist, completes voluntarily shield machine and stand up work; Lifted out after well by 250 tons of shield structure Special-purpose hanger unit main hooks for large parts of weight such as shield machine precursor, middle bodies, with 250 tons of shield structure Special-purpose hanger major-minor hooks, cooperatively interact and slowly fallen to level by upright state, then turn round off the hook to the off the hook of transport trolley assigned address, decoupling device, to ensure quality and the safe construction requirement of great.For fragmentary parts, being equipped with loop wheel machine in strict accordance with the requirement of lifting regulation, carry out according to shield structure lifting requirements.
(2) hanging method is selected: after cutter head of shield machine, anterior shield, middle shield and shield tail hang out with 250t crawler crane, available auxiliary hook coordinates main hook upset, load to level attitude, and directly entrucking.Supporting trailer, the parts such as conveyor screw directly lift with 250t crawler crane.
(3) calculating of Hoisting Parameters: taking anterior shield as example: heavy 92t, oad 6160mm × 6160mm × 3300mm.
(4) selection of steel is calculated: 4 of steel ropes, get angle≤60 °, dynamic factor J=1.1, safety factor N >=6, the quiet pulling force of Smx=steel rope maximum functional, the breaking force (according to GB 8918-88 standard) of Fo=steel rope; Be 92 tons according to the maximum weight of shield structure parts, adopt the steel rope of 4 Ф 64, the maximum pull of the every independent tension of energy is 238.32 tons.As calculated: tensile force f=92 × 1.1/4sin60 °=29.215 (tons) that average single rope is born; Safety factor k=238.32/29.215=8.16 ﹥ 6, meets safety lifting requirement.Main hoisting sling: 6 × 37+1, tensile strength 170kg/mm2, φ 65, long 6 meters four, single use, safety factor is 7.
(5) shackle is selected: the selection of shackle is selected by major-minor hook steel rope maximum weighted.Main hoisting shackle maximum weighted is in the time that shield body is holded up completely, and auxiliary hook shackle maximum weighted is to keep flat while slinging at shield body, by shield body weight 50%.
Main hoisting shackle is selected: P1=92 × 1.1/4sin60 °=29.215 (tons), main hook is selected 55 tons 4 of high-strength shackles.
Auxiliary hook shackle is selected: according to calculating, auxiliary hook is stressed is 45 tons to the maximum.P3=45/2sin60 °=25.98 (tons), 35 tons 2 of the high-strength shackles of auxiliary hook choice for use.
(6) in the anterior shield of shield machine, shield, shield tail have four suspension centres, and cutterhead has two suspension centres.Carry out lifting operation all by anterior shield consider, in shield structure main frame parts the heaviest be 92t.While adopting four suspension centres, each suspension centre is 29.215t (dynamic factor is in 1.1), selects 2.5 cun of shackles of American bow type, and unloading first diameter is 69.85mm, and safety load is 55t, is greater than 29.215t, meets construction requirement.The heavy 28t of cutterhead of shield machine.Adopt two suspension centres, each suspension centre is 15.4t (dynamic factor is in 1.1), selects equally 2.5 cun of shackles of American bow type, and safety load is 55t, is greater than 15.4t, meets construction requirement.
Shield machine anterior shield Hoisting Parameters, actual maximum lifting weight G is real.G reality=G × K
1+ g=92 × 1.1+3.7=104.5t, in formula: G--anterior shield theoretical weight (t), K
1--dynamic factor, get 1.1 (doubly), g-suspension hook weight (3t) and cable clamp tool weight (0.7t), that is, and maximum lifts weight G real=104.5, maximum lifting distance L: 250t crawler crane center of gyration is to crawler belt limit: 3.841m; Crawler belt limit is 6.16 meters to hanging thing center of gravity, and when lifting, " precursor " is 0.634m with shield structure well safety distance, and maximum lifting distance L is got 10m.
Hoisting process while now determining disassembling operation is if Figure 11-1 is to the hoisting process of disassembling operation as shown in Figure 11-7.
As Figure 12 shield structure lifting schematic diagram, under Figure 13-1, Figure 13-2 loop wheel machine crawler belt, lay aisle figure.
Hoisting Parameters while determining disassembling operation is as follows:
(1) determining of lifting radius: when broken-up and hanging is carried out in termination, west side AT STATION, the most unfavorable processing condition is the lifting of precursor, middle body, lifting radius is maximum, crawler belt center erect-position of crawler crane is on the fender post cushion cap of west side, and another crawler belt erect-position is gone up on the spot; 250 tons of pedrail crane centre of grations are 3.84 meters apart from crawler belt outside, crawler belt outside is 2.5 meters apart from lifting well head west side distance, shield machine radius is 3.08 meters, and crane carries out the minimum R=3.84+1.5+3.08=8.42m of the required radius of rotation of lifting operation, and crane lifting service radius is by 8.5 meters of accounting.
(2) checking computations of the biggest lifting capacity: 250 tons of pedrail cranes of SCC2500C type, SFH operating mode, 109.2 tons of full counterweights, main hoisting hook is selected 150 tons of hooks, and wherein 3.1 tons of suspension hook deadweights, wear four-wheel nine strands; With 19.5 meters of principal arm liftings, long 7 meters of auxiliary, becomes 30 degree with principal arm, and auxiliary hook is selected 80 tons of hooks, and wherein 1.5 tons of suspension hook deadweights, wear three-wheel six strands.Accompanying drawing is shown in by 250 tons of pedrail crane lifting performance tables of SCC2500C type.Large weight of shield machine and lifting radius are in table 3,8.5～10 meters of this lifting swinging radiuss, adjust by amplitude 10m, rated load weight 133.5t, 96 tons of the maximum lifting loads of crane, wherein conduct oneself with dignity 3 tons containing 1 ton of rope tool and suspension hook, now 133.5 tons of crane rated loads, crane loading coefficient 71.91%, i.e. crane performance table 75% Lifting Capacity.Meet Hoisting Security requirement.
7. the calculating of load over the ground: maximum ground pressure, consider maximum lifting quality 92T, hoisting crane deadweight adds clump weight in 250t.Two of walkway boards, under walkway board, adding steel plate diffusion area is 60m
2.Crawler belt over the ground load be: (920+2500) kN/60m
2=57kPa<75kPa, meets the requirement of station pit termination bearing capacity of foundation.
8. suspension centre arranges checking computations
(1) hanger bearing capacity calculation: the maximum substance of precursor is 92t, considers Dynamic factor, inhomogeneous Force Coefficients C=1.5～2 and other factors, calculates by 180t, 4 hangers are set altogether, each hanger bearing capacity is pressed P=180t/4=45t and is calculated, and hanger adopts Q345B, T=40mm.Shield machine anterior shield, middle shield hanger figure are as shown in Figure 14-1, Figure 14-2.
(2) hanger is selected calculating: Q345B steel yield strength is: T>36～50mm, s
t=295Mpa=29.5kg/mm
2.Shear strength is generally 0.6～0.8 of tensile strength, approximates 17.7kg/mm by 0.6 × 29.5
2; Unload card size according to 50 tons, d is set as 100mm; R generally gets 1.5 times of aperture 150mm, and therefore hanger is selected thickness: t=45000kg ÷ 17.7kg/mm
2÷ 100mm ≈ 25.423mm hanger safety factor is generally 1.1～1.2, and therefore to select thickness be 25.423 × 1.2=30.508mm to hanger.Therefore hanger thickness is got 40mm and is met construction requirement.
(3) hanger place weld seam shear Strength Calculation: welding material is ER50-6, weld seam grade is completepenetration one-level, strong to reach weld seam and mother metal etc., each hanger yield strength is: N=q × l × t/1000=29.5 × 300 × 40/1000=354t.N: hanger yield strength, q:Q345B steel plate yield strength value 29.5kg/mm
2l: ear length (mm), t: hanger thickness (mm), lifting arranges four hangers, four hanger strength rating summations are: 354 × 4=1416t>90t (shield structure structure maximum weight), meets shield structure lifting demand.
(4) weld seam detection
Adopt solvent-borne type to clean penetrant inspection agent, prerinse-infiltration-solvent cleaning-developing-observation.
Hanger detects the apparent order and condition at position and affects to a great extent the quality of dye-penetrant inspection, therefore should be specifically noted that attachments such as must thoroughly removing the grease that hinders penetrant deep, carbon deposit, oxide skin when prerinse.Attachment and remain in grease and the moisture in defect.Remove after pollutants, clean with purging medium, rear spray coating osmotic agent to be dried also keeps moisture state 15～30min.Infiltration is rear with dry cloth or the unnecessary penetrant of toilet paper wiping, and then cleans to a direction with the cloth or the toilet paper that are moistened with purging medium, can not directly spray cleaning with purging medium spray cans effects on surface.While wiping examination, forbid cotton waste, because its filament fragment easily stays from the teeth outwards, be difficult for removing, form pseudo-demonstration when developing, impact detects effect.
The developer of solvent-borne type penetrant inspection is fast dry type photographic developer.Before spraying, photographic developer spray cans will fully be shaken, and photographic developer is evenly sprayed on to tested surface.When spraying, distance is controlled at 300～400mm, and spray cans inclination angle becomes 30～40 ° with tested surface is advisable, and adopts scan mode, and it is even and thin that spraying is wanted, and is advisable just to cover Shou Jian district.After spraying photographic developer 7min, observe, redfree slight crack is qualified, has red slight crack, and welding again, until redfree slight crack.
According to Hoisting Construction Technology measure lifting, the quality safety of equipment and personnel's safety are ensured.
As hanging to tear open,, shield structure frontly must formulate the detailed scheme of tearing open and the plan of work of hanging; Termination, station wall is carried out to tight observation, grasp its distortion and strained condition.The stress balance when layout of shield machine main frame hanger must make to lift; Hang and tear front must mark all machines of Suporting structure, liquid, electric line interface open.All pipe joints must be carried out corresponding sealing and protection, particularly hydraulic system pipeline, sensor interface etc.Guarantee clean operation for disassembling of hydraulic power line, pour into clean oil product, shutoff in time, prevents from causing secondary pollution; Lift out well because shield machine is horizontal, vertical turnover scene, can not scrape, touch adapter, motor and other affiliated facility on shield machine when lifting.All pipelines are disassembled in former joint, do not adopt the destructive modes such as machine cuts.Guarantee equipment and personal security for the dismounting of mechanical fastener, while disassembling, must not adopt gas cutting to cut off attaching parts.
Statistics equipment damages, and in gouge, welding process, ground wire connection will be guaranteed to carry out at job position, prevents spark injury equipment in operation process; Must be before crane enters, by lifting planned land use and enter the on-the-spot cleaning of car and reinforce, meet lifting requirements: as wide 15 meters of beginning backfills, compacting, sclerosis from hole for hoist bank protection edge, enter near the obstacle that on bus or train route line, width is not less than 7 meters and move out in advance, the minimum turning radius in corner is greater than 20 meters; Affect swing fence gate position, the length dismounting on request that crane props up position, station.
In lifting construction in wind season, must be at shield machine two ends with rope made of hemp controlling party to, in case wind-engaging carries or force of inertia acutely waves and crash with lifting hole wall when lifting.When lifting, need take measures the component protection on shield machine is good, prevent that rope from strangling bad shield machine oil pipe and motor.
Playing heavy industry, signalman, the Suo Gongbi of department, electrician, electric welder, signalman, gauntry crane driver must take appointment with certificate.Expeditious measures when accident sign appears in lifting machine safety hoist.
The shield machine broken-up and hanging of the utility model design goes out well system, has both ensured to lift to construct smoothly, has ensured again device security and personal security.In building operation, there is great reference, promotional value, have good society and economic benefit.
Claims (9)
1. shield machine broken-up and hanging goes out a well system, comprises lifting, hangs the hanging apparatus of tearing shield machine open, it is characterized in that: described hanging apparatus is crawler crane (9); Described shield machine is provided with hanger (1), (2), (3); Crawler crane comprises main hook (10), auxiliary hook (11), steel rope, shackle or grab; Described shield machine comprises cutterhead (4), anterior shield (5), middle shield (6), tail shield (7).
2. go out well system according to the shield machine broken-up and hanging of claim 1, it is characterized in that: the shield structure well of described shield machine is made as building enclosure; Described building enclosure (8) Horizontal Displacement standard is for being less than or equal to accumulated deformation 10mm, rate of deformation 1.5mm/ time; Hoisting platform settlement point standard is for being less than or equal to ground settlement 20mm, rate of deformation 2mm/ time.
3. go out well system according to the shield machine broken-up and hanging of claim 1 or 2, it is characterized in that: described shield machine hanger is set to cutterhead and 4 of suspension centres, anterior shield are set 6, middle shield are set 6, tail shield are set arrange 6.
4. go out well system according to the shield machine broken-up and hanging of claim 1 or 2, it is characterized in that: comprise the acceptance frame of fixing shield structure structure main frame, be welded on the hanger on shield cutter; Described cutterhead is reserved 16 bolt of rear end plates, each 4 up and down; Shield machine top is moved to the propelling cylinder in acceptance frame front; Support the bracing frame of main process equipment connecting bridge; Drag the battery locomotive of trailer, equipment connection bridge; After main frame, join trailer; The shaped steel that welding is supported in shield tail; Separate hydraulic power unit and the oil cylinder of anterior shield, middle shield; Shield body both sides are welded with baffle plate, and pedestal is connected with shifting board with bolt; Promote the separated type hydraulic jack of shield body.
5. go out well system according to the shield machine broken-up and hanging of claim 1, it is characterized in that: described hanging apparatus also comprises whipline.
6. go out well system according to the shield machine broken-up and hanging of claim 1, it is characterized in that: the heavy 92t of load of described hanging apparatus; The maximum pull of the every independent tension of energy of steel rope is 238.32 tons; Described main hook is 130 tons of loads, and auxiliary hook is 80 tons of loads; 55 tons 4 of described main hook shackles; 35 tons 2 of auxiliary hook shackles; 133.5 tons of crane rated loads; Crawler belt over the ground load is: 57kPa; The maximum substance of described hanger precursor bearing capacity is 92t, hanger thickness T=40mm.
7. go out well system according to the shield machine broken-up and hanging of claim 1 or 2, it is characterized in that: crane is the SCC2500C of SANY company crawler crane; Described hanger is the hanger that cleans penetrant inspection agent inspection weld through solvent-borne type.
8. go out well system according to the shield machine broken-up and hanging of claim 1 or 2, it is characterized in that: the jack that also comprises shield launching base frame, shield machine.
9. go out well system according to the shield machine broken-up and hanging of claim 1 or 2, it is characterized in that: also comprise withdrawing device: lever hoist, chain block, welding generator, gas cutting equipment, air nutsetter, socket wrench, hydraulic spanner, hydraulic tensioning spanner, heavy sleeve, angle grinding machine.
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| CN201420131361.5U CN203922522U (en) | 2014-03-21 | 2014-03-21 | A kind of shield machine broken-up and hanging goes out well system |
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| CN201420131361.5U CN203922522U (en) | 2014-03-21 | 2014-03-21 | A kind of shield machine broken-up and hanging goes out well system |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014445A (en) * | 2016-07-25 | 2016-10-12 | 游连章 | Angle bead of shield segment |
| CN107902549A (en) * | 2017-10-31 | 2018-04-13 | 中国二十冶集团有限公司 | The simple and easy method of unloading jumbo |
| CN107989624A (en) * | 2017-11-29 | 2018-05-04 | 中国葛洲坝集团基础工程有限公司 | Quickly peace tears hanging method open to a kind of shield machine center steering formula assembling machine with tail shield |
| CN108715397A (en) * | 2018-07-27 | 2018-10-30 | 深圳市施罗德工业测控设备有限公司 | A kind of service hoisting cable suitable for pipe crawling device |
| CN108952741A (en) * | 2018-09-04 | 2018-12-07 | 济南中铁重工轨道装备有限公司 | More exchange device bridge construction technique in shield auger |
| CN109095350A (en) * | 2018-09-28 | 2018-12-28 | 中国葛洲坝集团第工程有限公司 | TBM shield body overturns hanging apparatus and operating method in main drive hole in the air |
| CN109296374A (en) * | 2018-10-25 | 2019-02-01 | 中铁二十二局集团轨道工程有限公司 | A kind of deep-well confined space TBM lifting shift method |
| CN110905535A (en) * | 2019-12-10 | 2020-03-24 | 中铁十四局集团隧道工程有限公司 | Shield constructs hoist and mount place system |
| CN111173522A (en) * | 2019-12-18 | 2020-05-19 | 中铁二十二局集团轨道工程有限公司 | Construction method for hoisting and descending air shaft shield machine |
| CN111606181A (en) * | 2020-05-28 | 2020-09-01 | 中铁工程装备集团有限公司 | Detachable lifting lug mechanism for shield cutter head and hoisting method thereof |
| CN112978561A (en) * | 2021-02-24 | 2021-06-18 | 中铁六局集团有限公司交通工程分公司 | Hoisting construction method of shield machine under 220kV high-voltage line |
| CN113896088A (en) * | 2021-09-01 | 2022-01-07 | 中国化学工程第三建设有限公司 | Device and method for single-machine hoisting of climbing-free hook unloading of spherical shell plate with column legs |
| CN117514219A (en) * | 2024-01-08 | 2024-02-06 | 中建交通建设集团有限公司 | Method for escaping and rapidly first-aid of shield tunneling machine cutterhead |
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- 2014-03-21 CN CN201420131361.5U patent/CN203922522U/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106014445A (en) * | 2016-07-25 | 2016-10-12 | 游连章 | Angle bead of shield segment |
| CN107902549A (en) * | 2017-10-31 | 2018-04-13 | 中国二十冶集团有限公司 | The simple and easy method of unloading jumbo |
| CN107989624A (en) * | 2017-11-29 | 2018-05-04 | 中国葛洲坝集团基础工程有限公司 | Quickly peace tears hanging method open to a kind of shield machine center steering formula assembling machine with tail shield |
| CN108715397A (en) * | 2018-07-27 | 2018-10-30 | 深圳市施罗德工业测控设备有限公司 | A kind of service hoisting cable suitable for pipe crawling device |
| CN108952741A (en) * | 2018-09-04 | 2018-12-07 | 济南中铁重工轨道装备有限公司 | More exchange device bridge construction technique in shield auger |
| CN109095350A (en) * | 2018-09-28 | 2018-12-28 | 中国葛洲坝集团第工程有限公司 | TBM shield body overturns hanging apparatus and operating method in main drive hole in the air |
| CN109095350B (en) * | 2018-09-28 | 2019-10-01 | 中国葛洲坝集团第一工程有限公司 | TBM shield body overturns hanging apparatus and operating method in main drive hole in the air |
| CN109296374A (en) * | 2018-10-25 | 2019-02-01 | 中铁二十二局集团轨道工程有限公司 | A kind of deep-well confined space TBM lifting shift method |
| CN110905535A (en) * | 2019-12-10 | 2020-03-24 | 中铁十四局集团隧道工程有限公司 | Shield constructs hoist and mount place system |
| CN111173522A (en) * | 2019-12-18 | 2020-05-19 | 中铁二十二局集团轨道工程有限公司 | Construction method for hoisting and descending air shaft shield machine |
| CN111606181A (en) * | 2020-05-28 | 2020-09-01 | 中铁工程装备集团有限公司 | Detachable lifting lug mechanism for shield cutter head and hoisting method thereof |
| CN112978561A (en) * | 2021-02-24 | 2021-06-18 | 中铁六局集团有限公司交通工程分公司 | Hoisting construction method of shield machine under 220kV high-voltage line |
| CN112978561B (en) * | 2021-02-24 | 2023-01-10 | 中铁六局集团有限公司交通工程分公司 | Hoisting construction method of shield machine under 220kV high-voltage line |
| CN113896088A (en) * | 2021-09-01 | 2022-01-07 | 中国化学工程第三建设有限公司 | Device and method for single-machine hoisting of climbing-free hook unloading of spherical shell plate with column legs |
| CN113896088B (en) * | 2021-09-01 | 2023-08-04 | 中国化学工程第三建设有限公司 | Device and method for lifting spherical shell plate with column legs by single machine without ascending and unhooking |
| CN117514219A (en) * | 2024-01-08 | 2024-02-06 | 中建交通建设集团有限公司 | Method for escaping and rapidly first-aid of shield tunneling machine cutterhead |
| CN117514219B (en) * | 2024-01-08 | 2024-04-02 | 中建交通建设集团有限公司 | Method for escaping and rapidly first-aid of shield tunneling machine cutterhead |
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Granted publication date: 20141105 |