CN107401405A - Fixed assembling machine changes the device and its construction method of shield tail brush - Google Patents
Fixed assembling machine changes the device and its construction method of shield tail brush Download PDFInfo
- Publication number
- CN107401405A CN107401405A CN201710453302.8A CN201710453302A CN107401405A CN 107401405 A CN107401405 A CN 107401405A CN 201710453302 A CN201710453302 A CN 201710453302A CN 107401405 A CN107401405 A CN 107401405A
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- jurisdiction
- section
- shield tail
- fixed
- tail brush
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- 238000009412 basement excavation Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 2
- 230000007812 deficiency Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 62
- 239000002002 slurry Substances 0.000 description 11
- 238000007789 sealing Methods 0.000 description 8
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0607—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield being provided with devices for lining the tunnel, e.g. shuttering
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0635—Tail sealing means, e.g. used as end shuttering
Abstract
The invention discloses the device and its construction method that a kind of fixed assembling machine changes shield tail brush, the device that the fixed assembling machine changes shield tail brush includes：Slew gear, walking axle, extension shaft, long bolt, section of jurisdiction snatch head, translation oil cylinder etc..The invention also discloses a kind of method installed fixed assembling machine and change the device of shield tail brush.The device of the present invention is simple and detachable, used equipment and parts are common and price is low；Installation method of the present invention is simple and convenient, workable；The construction method engineering time of the present invention is short, safety coefficient is high.During the present invention efficiently solves tunnel construction, shield tail brush caused by the stroke deficiency of the section of jurisdiction snatch head of fixed assembling machine removes the problem of difficult, can be widely applied to tunnel construction equipment and technical field.
Description
Technical field
The present invention relates to tunnel construction equipment and technical field, it is more particularly related to a kind of fixed
Assembling machine changes the device and its construction method of shield tail brush.
Background technology
With the extensive development of domestic subway construction, shield construction due to possess safely, quickly, the spy such as wide adaptability
Put and be widely used in Subway Tunnel construction.The shield tail brush of shield machine is located at the afterbody of shield main frame, is closely connect with section of jurisdiction
Touch, mainly play the sealing function for preventing that water, mud etc. from flowing into inside shield along section of jurisdiction back, be to prevent shield tail from gushing
Critical seal facility that is husky, gushing mud.3 sealing brush of shield tail brush form 2 annular seal spaces, and the chamber between shield tail brush is by injecting shield
Tail seal grease, ensure that the gap that the slurries of section of jurisdiction behind synchronous grouting and mud will not be between section of jurisdiction and shield machines is spilt,
Prevent underground water from leaking into shield machine simultaneously, if tail sealing performance is bad, shield-tunneling construction in the case can be made
Into adverse effect, there can be huge construction risk when situation is serious, therefore once find that shield tail brush is large range of and be damaged,
It is timely to change shield tail brush with regard to needing the situation according to stratum.
It is high, it is necessary to dismantle the section of jurisdiction for being close to shield tail brush that shield tail brush risk is changed in tunnel, fixed assembling machine leans on itself
Stroke can not meet that snatch head in section of jurisdiction reaches the position of section of jurisdiction that shield tail brush is close to, section of jurisdiction that shield tail brush is close to can not be dismantled so that
Shield tail brush can not be changed, the present invention is transformed fixed assembling machine, takes the section of jurisdiction snatch head for extending fixed assembling machine
Stroke method, dismounting and segment assembly when being convenient for changing shield tail brush, improve the safety coefficient for changing the construction of shield tail brush, simultaneously
The replacing construction of shield tail brush is shortened, while reduces water burst, gush the risk of sand.
The content of the invention
It is an object of the invention to solve at least the above, and provide the advantages of at least will be described later.
Simple, the fixed assembly that cost is cheap, safety coefficient is high is installed it is a still further object of the present invention to provide a kind of
Machine changes the device of shield tail brush.
In order to realize according to object of the present invention and further advantage, there is provided a kind of fixed assembling machine changes shield tail
The device of brush, including：Slew gear, it is the rotating disk shape of class annular, and it is arranged in the plane vertical with excavation direction, can be
360 ° of rotations of circumferencial direction；Walking axle and extension shaft, the walking axle are cylindrical, and the outside of its one end is vertical around being welded with
Directly in be evenly arranged with the fixed plate of its axis, the fixed plate the first screw and it is described walking axle pass through first spiral shell
Hole is screwed in same with it on the bottom surface of the axle other end of on the vertical direction of the rear side of the snatch crossbeam of slew gear, walking
The disc in the center of circle caves inward to form the first cylinder shape groove, and first cylinder shape groove caves inward to form what is be coaxial therewith
Second screw；The extension shaft, its structure being formed in one, its front and rear are coaxial cylinder, its anterior circle
The diameter of cylinder and high and the first cylindrical groove all same, the diameter of the cylinder at its rear portion and the walking axle
There is the second cylinder shape groove to be formed that caved inward with the disc of its concentric on direct identical and rear side bottom surface, it is described to add
Major axis is internally provided with the cylindrical first through hole coaxial with the anterior cylinder；Long bolt, the long bolt are anterior
Fixed by second screw with the walking axle and the long bolt passes through the first through hole, its afterbody will by nut
The walking axle and extension shaft are fixed；Section of jurisdiction snatch head, it, which is arranged, is fixed on the walking axle, can exist with slew gear
360 ° of rotations of circumferencial direction；Translation oil cylinder, it is fixed on the snatch crossbeam of slew gear and above the walking axle, its
It is connected with the section of jurisdiction snatch head and snatch head in section of jurisdiction can be promoted to be moved on the walking axle.
Preferably, the device of described fixed assembling machine replacing shield tail brush also includes, oil cylinder seat, the oil cylinder seat bag
Include：Bottom plate, it is rectangular slab and uniformly offers the 3rd screw, and the bottom plate one side vertical with the 3rd screw axis is close to
The oil cylinder seat is fixed on the revolution by the rear vertical face of the snatch crossbeam of slew gear, screw by the 3rd screw
On the snatch crossbeam of mechanism；Supporting plate, it is two identical rectangular slabs, belongs to a pair of identical of two supporting plates
The side of length is welded on the bottom plate and vertical with the bottom plate, and eight of relative two faces of the supporting plate
While it may be constructed a cuboid；Top plate, its level are welded in two supporting plates and parallel with the bottom plate；Fixed plate, its
For two class isosceles triangle plates, the face where its base be welded in it is on the top plate and vertical with the top plate, and point
Relative two side in the face belonged to where the base of two fixed plates may be constructed one it is square, set by subapical position
Cylindrical second through hole is equipped with, translation oil cylinder can be fixed in fixed plate with steady pin.
The method that the device of shield tail brush is changed present invention also offers the fixed assembling machine described in a kind of installation, specific step
Suddenly include：S1：Remove an appearance interim walkway board in both sides；S2：Extension shaft is arranged on walking axle with long bolt and nut；
S3：Dismantle translation oil cylinder；S4：Oil cylinder seat is fixed on snatch crossbeam with bolt, and translation oil cylinder is re-started into installation；
S5：Hydraulic tube is simultaneously arranged on groove by spreading pipelining groove；S6：Debug fixed assembling machine, it is ensured that can be with after device installation
Change shield tail brush.
The construction method of the device of shield tail brush is changed present invention also offers the fixed assembling machine described in a kind of use, more
Change after shield tail brush using wrong point position segment assembly method installation section of jurisdiction, remove ring it is initially assembled when with the upper ring fissure of displacement, section of jurisdiction remove with
Block is unit, has changed segment assembly again after shield tail brush again rotates counterclockwise assembly point position.
Preferably, described fixed assembling machine changes the construction method of the device of shield tail brush, the replacing shield tail brush
Comprise the following steps that：S7：K, B, C block are removed, and excludes the shield tail brush at tri- pieces of sections of jurisdiction of K, B, C rapidly and polishes；S8：Take successively
Connect and new shield tail brush is installed, and use CO2New shield tail brush is welded and carries out grease smearing by the mode of protection weldering； S9：Treat oil
After the completion of fat is smeared, the secondary assembly of section of jurisdiction is carried out, B blocks section of jurisdiction is turned clockwise behind two point positions and in the side that it depends on A3
It is assembled again to reserve the position of K blocks section of jurisdiction, longitudinal pipe piece long bolt is installed, is withstood with propelling cylinder, reuses L-type clamp
It is reinforced, the L-type clamp is welded in the shield body of the shield machine；S10：A1 blocks section of jurisdiction is removed, is changed and A1 blocks
The shield tail brush of section of jurisdiction close contact simultaneously smears grease, and A1 blocks section of jurisdiction is close into B block pipe sheet assemblings, removes B blocks section of jurisdiction and A1 block pipes
The L-type clamp of piece abutted surface, allow A1 blocks section of jurisdiction to be docked with B blocks section of jurisdiction, propelling cylinder is held out against after the completion of docking；S11：Sequentially complete
Ventral brush at the dismounting of A2, A3 block section of jurisdiction, corresponding section of jurisdiction is changed and grease is smeared, secondary assembly；S12：It is close to A3 blocks installation C
Block section of jurisdiction, L-type steel plate is removed, is close to B blocks and C block assembly K blocks section of jurisdiction.
The present invention comprises at least following beneficial effect：
First, the present invention is by by corollary apparatus such as the extended length for axle of walking and the translation oil cylinders for changing big stroke, solving
During constructing tunnel, the problem of fixed assembling machine changes shield brush difficulty, involved equipment and parts are simple and often
See, and using dismountable part such as bolt and screw in the installation process of the present invention, thus the present invention be it is a kind of simply and easily
Fixed assembling machine changes the device of shield tail brush.
2nd, equipment involved in the present invention and parts are simple and common, do not use large-scale instrument and equipment
Replacing of the fixed assembling machine to shield tail brush is realized, therefore the present invention is a kind of cheap fixed assembling machine replacing shield tail brush of cost
Device.
3rd, present invention installation is simple, substantially reduces the replacing construction of shield tail brush, improves the construction peace for changing shield tail brush
Overall coefficient, therefore the present invention is the device that a kind of high fixed assembling machine of safety coefficient changes shield tail brush.
Further advantage, target and the feature of the present invention embodies part by following explanation, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Brief description of the drawings
Fig. 1 is present invention walking shaft end structural representation；
Fig. 2 is present invention walking axle and extension shaft connection relationship diagram；
Fig. 3 is present invention walking axle and lengthens the right view after axis connection；
Fig. 4 is the front view of stay bolt of the present invention；
Fig. 5 is the right view of stay bolt of the present invention；
Fig. 6 is the structural representation of oil cylinder seat of the present invention；
The fixed assembling machine that Fig. 7 is the present invention transforms general assembly drawing；
Fig. 8 is the connection relationship diagram of shield tail brush and section of jurisdiction；
Fig. 9 is the secondary grouting seal ring schematic longitudinal section of the embodiment of the present invention；
Figure 10 is the schematic diagram before shield tail brush bottom of embodiment of the present invention section of jurisdiction is removed；
Figure 11 is the schematic diagram after shield tail brush bottom of embodiment of the present invention section of jurisdiction is removed；
Figure 12 is L-type clamp scheme of installation；
Figure 13 is fixing device schematic diagram of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text
Word can be implemented according to this.
It should be noted that experimental method described in following embodiments, is conventional method unless otherwise specified, institute
Reagent and material are stated, unless otherwise specified, is commercially obtained；In the description of the invention, term " transverse direction ", " vertical
To ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", the instruction such as " outer " side
Position or position relationship are based on orientation shown in the drawings or position relationship, are for only for ease of the description present invention and simplify description,
It is not instruction or implies signified device or element there must be specific orientation, with specific azimuth configuration and operation, because
This is not considered as limiting the invention.
As shown in figures 1-13, the invention provides the device that a kind of fixed assembling machine changes shield tail brush, including：Turn-around machine
Structure, it is the rotating disk shape of class annular, and it is arranged in the plane vertical with excavation direction, can be in 360 ° of rotations of circumferencial direction；OK
Axle 13 and extension shaft 16 are walked, the walking axle is cylindrical, and the outside of its one end, which surrounds, is welded with consolidating perpendicular to its axis
Fixed board, the first screw is evenly arranged with the fixed plate and the walking axle is bolted to by first screw
It is inside with the disc of its concentric on the bottom surface of the axle other end of walking on the vertical direction of the rear side of the snatch crossbeam of slew gear
Depression forms the first cylinder shape groove 14, and first cylinder shape groove caves inward the second screw 15 to be formed and be coaxial therewith；
The extension shaft, its structure being formed in one, its front and rear are coaxial cylinder, its anterior cylinder 17 it is straight
The direct phase of footpath and high and the first cylindrical groove all same, the diameter of the cylinder 18 at its rear portion and the walking axle
There are the second cylinder shape groove 19 to be formed that caved inward with the disc of its concentric, the lengthening on the same and bottom surface of rear side
Axle is internally provided with the cylindrical first through hole 20 coaxial with the anterior cylinder；Long bolt 21, before the long bolt
Portion is fixed by second screw with the walking axle and the long bolt passes through the first through hole, and its afterbody passes through nut
The walking axle and extension shaft are fixed；Section of jurisdiction snatch head, it, which is arranged, is fixed on the walking axle, can be with slew gear
In 360 ° of rotations of circumferencial direction；Translation oil cylinder, it is fixed on the snatch crossbeam of slew gear and above the walking axle,
It is connected with the section of jurisdiction snatch head and snatch head in section of jurisdiction can be promoted to be moved on the walking axle.Section of jurisdiction snatch head axial stroke
Short, one of shield tail brush needs shield machine to push ahead certain stroke before replacing, and fixed assembling machine can not be torn open by the stroke of itself
The section of jurisdiction of shield tail brush position is unloaded, so that shield tail brush can not be changed, using the method for the walking axle for extending section of jurisdiction snatch head, is taken
Axle afterbody of walking fixes the mode of extension shaft, convenient to dismantle and spell when changing shield tail brush to extend the stroke of section of jurisdiction snatch head
Tubulature piece.The afterbody for axle of walking is designed as concave inward structure by the present invention, and the front end for axle of walking is provided with into outer male structure, and described
Concave inward structure and outer male structure are fitted close just.The walking axle and extension shaft are fixed using stay bolt and nut, taken
Such a fixed form, processing method is simple, and is easily installed and dismantles, and is a kind of preferred scheme in all connected modes.
But this is not limited only to, it is every to reach the fixed form for fixing the extension shaft and walking axle, the guarantor in the present invention
In the range of shield.After the walking axle and extension shaft are connected, snatch head in section of jurisdiction can be enclosed on the walking axle and extension shaft,
Walk and can reach at the section of jurisdiction where shield tail brush to opposite direction is excavated, the section of jurisdiction can be dismantled and be installed.Now, will be right
The translation oil cylinder answered is replaced by the translation oil cylinder of bigger stroke, you can realizes the dismounting and installation of section of jurisdiction at shield tail brush, specifically
The selection of stroke determines according to the position of shield tail brush.
The device that described fixed assembling machine changes shield tail brush also includes, and oil cylinder seat, the oil cylinder seat includes：Bottom plate 8,
It is rectangular slab and uniformly offers the 3rd screw, and the bottom plate one side vertical with the 3rd screw axis is close to slew gear
Snatch crossbeam rear vertical face, the oil cylinder seat is fixed on grabbing for the slew gear by screw by the 3rd screw
Lift on crossbeam；Supporting plate 9, it is two identical rectangular slabs, belongs to a pair of identical length of two supporting plates
Side is welded on the bottom plate and vertical with the bottom plate, and eight sides in relative two faces of the supporting plate can be with
Form a cuboid；Top plate 10, its level are welded in two supporting plates and parallel with the bottom plate；Fixed plate 11, it is
Two class isosceles triangle plates, the face where its base are welded on the top plate and vertical with the top plate, and adhere to separately
In relative two side in the face where the base of two fixed plates may be constructed one it is square, by subapical position set
There is cylindrical second through hole 12, translation oil cylinder can be fixed in fixed plate with steady pin.The translation oil cylinder of section of jurisdiction snatch head
Elongation is fixed, and we can select the translation oil cylinder of bigger stroke to promote snatch head in section of jurisdiction to reach the section of jurisdiction of shield tail brush
Place, but the cost of the translation oil cylinder seat due to changing big stroke is higher, therefore this invention takes another preferred scheme：Peace
Charge of oil cylinder seat, realize that section of jurisdiction snatch head is translatable to the position of section of jurisdiction corresponding to shield tail brush.The installation oil cylinder seat on snatch crossbeam
Afterwards, translation oil cylinder is reinstalled on oil cylinder seat, and corresponding oil pipe is lengthened to meet use demand.This kind of oil cylinder seat be
The present invention is preferably a kind of, but is not limited only to this, and every oil cylinder seat for being used to extend the snatch stroke of translation oil cylinder is at this
In the protection domain of invention.The bottom plate of the oil cylinder seat is fixed on the snatch crossbeam of the slew gear, and ensures to support
The non-solder side of plate is parallel with the walking axle, and when the timing of distance one for needing to extend, it is materials to take parallel fixed form
A kind of minimum preferred scheme.
The method that a kind of fixed assembling machine described in installation changes the device of shield tail brush, specific steps include：S1：Remove
Open and put into effect the interim walkway board in both sides；S2：Extension shaft is arranged on walking axle with long bolt and nut；S3：Dismantle translation oil cylinder；
S4：Oil cylinder seat is fixed on snatch crossbeam with bolt, and translation oil cylinder is re-started into installation；S5：Spreading pipelining groove
And hydraulic tube is arranged on groove；S6：Debug fixed assembling machine, it is ensured that can change shield tail brush after device installation.The peace
Dress method is simple, and the installation equipment and parts being related to are typical and installation process is also fairly simple.
A kind of fixed assembling machine described in use changes the construction method of the device of shield tail brush, is used after changing shield tail brush
Mistake point position segment assembly method installation section of jurisdiction, with the upper ring fissure of displacement when dismounting ring is initially assembled, section of jurisdiction is removed removes pipe in units of block
Piece, segment assembly again after shield tail brush again rotates counterclockwise assembly point position is changed.Using this method reduce section of jurisdiction with
The use supported between propelling cylinder, greatly reduce quantities, reduce security risk.
Described fixed assembling machine changes the construction method of the device of shield tail brush, the specific steps for changing shield tail brush
It is as follows：S7：K, B, C block are removed, and excludes the shield tail brush at tri- pieces of sections of jurisdiction of K, B, C rapidly and polishes；S8：Overlap joint installation is new successively
Shield tail brush, and use CO2New shield tail brush is welded and carries out grease smearing by the mode of protection weldering；S9：Treat that grease has been smeared
Cheng Hou, the secondary assembly of section of jurisdiction is carried out, B blocks section of jurisdiction is turned clockwise behind two point positions and reserves K by A3 side at it
The position of block section of jurisdiction is assembled again, installs longitudinal pipe piece long bolt, is withstood with propelling cylinder, reuse L-type clamp and it is entered
Row is reinforced, and the L-type clamp is welded in the shield body of the shield machine；S10：A1 blocks section of jurisdiction is removed, is changed tight with A1 blocks section of jurisdiction
The tactile shield tail brush of contiguity simultaneously smears grease, and A1 blocks section of jurisdiction is close into B block pipe sheet assemblings, removes B blocks section of jurisdiction and connects with A1 blocks section of jurisdiction
The L-type clamp in face, allow A1 blocks section of jurisdiction to be docked with B blocks section of jurisdiction, propelling cylinder is held out against after the completion of docking；S11：Sequentially complete A2, A3
Ventral brush at the dismounting of block section of jurisdiction, corresponding section of jurisdiction is changed and grease is smeared, secondary assembly；S12：It is close to A3 blocks installation C block pipes
Piece, L-type steel plate is removed, is close to B blocks and C block assembly K blocks section of jurisdiction.In the present invention, by the section of jurisdiction for forming any one section of jurisdiction ring
The block that binds is referred to as K blocks, and is followed successively by K blocks, C blocks, A3 blocks, A2 blocks, A1 blocks and B blocks in the counterclockwise direction in face of development end.
Do not rocked to allow the other end of extension shaft to keep stable, the present invention have also been devised the fixing device of extension shaft, such as
Shown in Figure 13, the fixing device includes：A pair of supporting legs 1, it is located at the bottom of the fixing device, the pair of support
The lower end of leg 1 is vertically fixed on the upper surface of the snatch crossbeam of slew gear in the horizontal plane；The spacing case 2 of oil cylinder, during it is
Empty cuboid and the upper end of the pair of supporting leg is horizontally placed on along its length, the pair of supporting leg is close to described
The leading flank of the spacing case of oil cylinder along its length, the trailing flank of the spacing case of oil cylinder along its length is open, the leading flank
Inwall on be vertically and fixedly provided with a pair of fixed blocks 3, and size identical cylindrical is relatively set with the pair of fixed block 3
Third through-hole, the front end of the piston rod of fixed oil cylinder are arranged between the pair of fixed block 3 and are fixed on steady pin described
The inside of the spacing case 2 of oil cylinder；Support shaft 4, it is the outer shell of horizontally disposed cylindrical solid shafting, its one end and fixed oil cylinder
Outermost be fixedly connected and its other end is fixedly connected with two fix bars 5, the perpendicular where the support 4 is by two
The rectangle that four end points of extension shaft are formed is divided equally；Two fix bars 5, its one end is both connected in the support shaft 4 and its is another
It is connected with below one end in a pair of retainer rings 6, and the center of circle of the pair of retainer ring 6 is located at the axle of the extension shaft respectively
On line, and the diameter of the pair of retainer ring is slightly larger than the diameter of the extension shaft, and one end of described two extension shafts can be distinguished
It is arranged and is fixed in two retainer rings.Fourth hole, one end connection of oil pipe are provided with the casing of the spacing case of the oil cylinder
Fixed oil cylinder, and the other end of oil pipe can be connected through the fourth hole with oil supply system.The length of the spacing case 2 of oil cylinder
Degree is arranged to：When the fixed oil cylinder reaches range, its outer shell is still inside the spacing case 2 of the oil cylinder, and described solid
Inwall 2-5cm of the outer shell of stand oil cylinder apart from the spacing case of the oil cylinder.The pair of supporting leg 1 and the spacing case 2 of the oil cylinder it
Between be fixedly installed hound 7, and the hound 7 is arranged to not interfere the section of jurisdiction snatch head to install and dismounting section of jurisdiction.
Exemplified by marking left line replacing shield tail brushing tool body construction with reference to No. 14 lines 1 of Guangzhou Underground, to make the common skill in this area
Art personnel can implement according to this after referring to this specification.
When shield machine ventral brush is changed, in order to formation damage and it is prominent the non-controllable risk such as gush, it is only right when ventral brush is changed
1st shield tail brush is changed, and last 2 shield tail brush still seals during replacing, stop the face soil body and after
Portion's water pours in shield body, anticipating risk.Shield tail brush risk height is changed in tunnel, it is necessary to dismantle the section of jurisdiction for being close to shield tail brush, section of jurisdiction
Snatch head axial stroke only has 500mm, and one of shield tail brush needs shield machine thrust oil cylinder to push ahead 1000mm before replacing, fixed
Formula assembling machine can not meet the section of jurisdiction for dismantling shield tail brush position by the stroke of itself, so that shield tail brush can not be changed, using to solid
Fixed pattern assembling machine is transformed, and extends the method for fixed assembling machine snatch stroke, dismounting and assembly when being convenient for changing shield tail brush
Section of jurisdiction, the safety coefficient for changing the construction of shield tail brush is improved, while shorten ventral brush replacing construction, reduced water burst, gush sand risk.
The groundwork of this modification scheme and thinking are：Shield machine is intended removing 1074 endless tube pieces, first of shield tail brush of replacing.
After the completion of 1074 ring assembly, it be 1000mm to continue to tunnel 1075 rings to propelling cylinder stroke, exposes the after 1074 endless tube pieces of dismounting
1 shield tail brush is changed.Snatch head axial stroke in section of jurisdiction only has 500mm, can not meet to dismantle shield tail brush by the stroke of itself
The section of jurisdiction of position, so that shield tail brush can not be changed, therefore increase interim extending shaft on section of jurisdiction snatch head walking axle, increase section of jurisdiction
Snatch head sliding distance, section of jurisdiction snatch head is set to grab the section of jurisdiction of shield tail brush position, it is ensured that can remove can be more behind section of jurisdiction
Change above twice shield tail brush.
Transform fixed assembling machine measure and content is as follows：
(1) fixed assembling machine is cleared up, ensures to clean out in all working face；
(2) the walking axle of two section of jurisdiction snatch heads is pulled down, carries out end processing, as shown in Figure 1；
(3) interim extension shaft two is processed；
(4) processing connection long bolt two：The long bolt of M42 × 940, and match somebody with somebody two C12 nuts；
(5) because fixed assembling machine translation oil cylinder stroke is limited, it is necessary to will be moved after translation oil cylinder, section of jurisdiction snatch head is met
Reach the position of ventral brush, it is therefore desirable to make oil cylinder seat；
(6) oil pipe of translation oil cylinder needs to lengthen, and gets out all oil pipes on section of jurisdiction snatch head；
When shield machine driving 1075 rings to propelling cylinder stroke is 1000mm, installs and lengthen on section of jurisdiction snatch head walking axle
Axle, increase section of jurisdiction snatch head sliding distance, section of jurisdiction snatch head is grabbed the section of jurisdiction of shield tail brush position.
Comprise the concrete steps that：
Step 1: an appearance interim walkway board in both sides is removed, because fixed assembling machine can interfere when rotating；
Step 2: two extension shafts are arranged on two walking axles with the long bolt of two M42 × 940 and two C12 nuts
On；
Step 3: dismounting translation oil cylinder, lengthens or changes translation oil cylinder hydraulic tube；
Step 4: translation oil cylinder is re-started into installation after installation oil cylinder seat on snatch crossbeam；
Step 5: spreading pipelining groove and hydraulic tube and tank chain are arranged on groove；
Step 6: debug fixed assembling machine, try by section of jurisdiction snatch head move in parallel it is intact after can routinely change shield
Ventral brush；
The fixed assembling machine reequiped is as shown in Figure 7.
Shield machine shield tail sealing brush construction is as shown in Figure 8, it can be seen that and shield tail forms 2 annular seal spaces by 3 sealing brush,
If tail sealing performance is bad, shield-tunneling construction in the case can be adversely affected, can existed when situation is serious huge
Big construction risk, therefore once find the large range of damage of shield tail brush, it is necessary to according to the situation on this stratum, timely pacify
The replacing of row shield tail brush is discharged into, exchonge step is as follows：
Step 1: after 1075 rings tunnel to above the 1st shield tail brush outside last endless tube piece and after 2 shield tail brushes still
Stop driving when inside section of jurisdiction.Sequentially remove 1074 endless tube pieces each piece, change the 1 shield tail brush exposed.
Step 2: with the upper ring fissure of displacement when dismounting ring is initially assembled, section of jurisdiction, which is removed, is removed section of jurisdiction in units of block, has changed shield
Again segment assembly after assembly point position is rotated counterclockwise 72 degree by ventral brush again, reduces what is supported between section of jurisdiction and propelling cylinder
Use, greatly reduce quantities, reduce security risk.
The invention has the advantages that：
First, fixed assembling machine is transformed, shield machine is pushed ahead after having spelled section of jurisdiction to 1000mm, it is fixed
Formula assembling machine can dismantle and segment assembly, possesses the primary condition that shield tail brush is changed in tunnel.
Secondly, it is high that shield tail brush security risk is changed in tunnel, the construction of shield machine ventral brush is changed using fixed assembling machine
Method reduces construction risk.
Finally, removably assemble by flange or bolt between all parts of the invention, can basis
Convenient and swift assembling is actually needed, there is the advantages of practical, applicability is wide.
The Specific construction step that No. 14 targets of line 1 of Guangzhou Underground change shield tail brush is as follows：
1st, fixed assembling machine transformation
Assembly complete 1074 rings after, wait tunnel 1075 rings to above the 1st shield tail brush outside last endless tube piece and after 2
Stop driving when road shield tail brush is still inside section of jurisdiction.Fixed assembling machine is transformed, made it possible to when needed to translation
Oil cylinder is extended.
(1) it transforms principle to install interim extension shaft on the walking axle of fixed assembling machine, in fixed assembling machine
The oil cylinder seat of the rear portion installation 674mm length of translation oil cylinder, is changed into fixed assembling machine from original 500mm stroke
1174mm, and to make fixed assembling machine extend the length of corresponding hydraulic oil pipe without interference, make it have replacing the 1st
The ability of shield tail brush.Through adjusting, when shield machine forward impelling is to traveled distance 1000mm, the fixed traversing 1000mm of assembling machine
Last endless tube piece can be removed, exposes the 1st shield tail brush.
(2) to prevent fixed assembling machine from producing interference with an appearance both sides walkway board after extending, fixed assembly is transformed
An appearance both sides aisle front edge of board about 400mm is cut off before machine, treats that ventral brush is welded recovery again after changing.
(3) segment conveyor moves 34cm after need to being separated with support, so that bottom section of jurisdiction is removed, and by oil pipe and cable phase
Moved after should extending simultaneously.
(4) both sides segment conveyor towing bracket front end need to cut off 5cm, to facilitate section of jurisdiction to remove.
2nd, stratum consolidation, sealing
(1) simultaneous grouting slurry is replaced by into configured good bentonite slurry when left line tunnels 1075 ring to be injected,
Shut down when showing that stroke is 1000mm to propelling cylinder is minimum, actual cutterhead position is located at 1080 rings and carries out changing shield tail brush, i.e.,
Domain secondary grouting is carried out to 1069 rings, 1070 rings, 1071 rings and does seal ring.
(2) 4m is uniformly injected into after shutting down at tube wall rear first with synchronous grouting3Expanded good bentonite slurry, so as to
Protective layer formed here, this is to prevent that slurry blocks synchronous grouting pipe and slurries toward shield body in subsequently note dual slurry
Slurry is altered with Tu Cang, prevents from wrapping shield body and pastes cutterhead.
(3) after bentonite injection, by the injected hole that section of jurisdiction is reserved to injecting water-soluble poly ammonia from the 3rd ring reciprocal
Ester, the 3rd ring is 1072 rings, and rear water source is blocked, and reduces the risk of water burst when changing shield tail brush.
4th, ventral brush step is changed
(1) tunnel and complete in the ring of shield machine 1074, the 1074 endless tube piece time point positions that assembly is intended removing are 10 points, and K blocks do not enter
Row is assembled.
(2) fixed assembling machine is transformed, while soluble polyurethane is injected to the 1072 ring domains, in driving 1075
Simultaneous grouting slurry is replaced by the bentonite slurry injection shield tail configured during ring.
(3) continue to tunnel 1075 rings after the completion of pipe sheet assembling, show that stroke is 1000mm when next ring propelling cylinder is minimum
When, stop driving, now should ensure that soil is state of buying securities with all one's capital in native storehouse, and reach the balance pressure on the stratum, prevent rear from noting
Altered before slurry to Tu Cang and wrap cutterhead, strengthen the stability of face.
(4) treat that slip casting reaches water-stagnating effect on inspection and the transformation of fixed assembling machine is completed to start to remove 1074 endless tubes afterwards
Piece, preceding 1 shield tail brush will expose after removing the endless tube piece.The dismounting order of the endless tube piece is as described below：
1) B, C block section of jurisdiction are removed, bounces back and withstands on the block section of jurisdiction again after first being held out against by B blocks section of jurisdiction pinning and with jacking cylinder
Propelling cylinder, and remove longitudinal direction and ring section of jurisdiction long bolt, then B blocks delivered to and feed piece machine, make to feed piece machine by K blocks and B blocks
Retract 1.6m backward simultaneously, reserves next piece of section of jurisdiction placement location, similarly removes C blocks.
2) it is quick to clear up and change the shield tail brush at tri- pieces of sections of jurisdiction of K, B, C and good hand is smeared to wire brush and grease storehouse angle
Grease, and grease hand-hole is checked.
3) assembled B blocks section of jurisdiction, being turned clockwise 72 degree, it is assembled to carry out, then to B blocks section of jurisdiction front end face and both sides longitudinal direction
Section is fixed using L-type steel plate.
4) A1 blocks section of jurisdiction is removed, rapidly by the shield tail brush in 30cm length ranges at A1 blocks section of jurisdiction and former B blocks segment joint
Cleared up and changed, and applied install shield tail grease on request.
5) by 72 degree of A1 blocks section of jurisdiction rotate counterclockwise, it is close to the assembly of B blocks, and rapidly to removing the shield tail brush in the range of section of jurisdiction
Cleared up and changed, and applied install shield tail grease on request.
6) assembly after A2, A3 block section of jurisdiction and 72 degree of rotate counterclockwise is sequentially removed according still further to above-mentioned technological process, and rapidly
To the 1st shield tail brush in the range of the block section of jurisdiction change simultaneously application shield tail grease, needed before each pipe sheet assembling by seam crossing
Shield tail grease is first changed and applied to the ventral brush of 30cm length.
7) after A2 blocks section of jurisdiction is removed, need that equally A3 blocks section of jurisdiction front end face and two sides is fixed using L-type steel plate.
8) last assembled C blocks and K blocks, need to confirm whether wire brush and grease storehouse angle have been smeared on request before assembly
Hand grease.
(5) exchanging shield ventral brush key step is as described below：
1) the platform, removings such as the grease in sealing brush and groove, mortar is clean is set up, excludes tri- blocks of pipes of K, B, C rapidly
The 1st ventral brush at piece.
2) after the completion of ventral brush cuts off and cleared up, by 2 people, one group is welded to new ventral brush, and shield tail brush erection sequence is successively
Overlap joint installation；Welding uses CO2Protection weldering, 1 people welds shield tail brush preceding putting shield tail brush and spot welding, another 1 people in every group.Weldering
Grease smearing can be carried out after engineer checks and accepts by connecing quality.
3) smear shield tail grease, when smearing grease between shield tail every layer of wire brush of brush, wire brush side, wire brush and shield body
Angle between must be full of shield tail grease, saturation exhaustive, needed special messenger's inspection after the completion of smearing.
4) after the completion for the treatment of that grease is smeared, the secondary assembly of section of jurisdiction is carried out.B blocks section of jurisdiction is turned clockwise two point positions i.e. 72
It is assembled again after degree, take such a erection method to ensure that the shield tail brush of section of jurisdiction junction is smoothly changed, pacify after the completion of B block assembly
Longitudinal pipe piece long bolt is filled, is withstood with propelling cylinder, is reused L-type clamp and it is reinforced.
5) complete the ventral brush at B blocks section of jurisdiction to change with after grease smearing, its assembly is arrived former B blocks position by dismounting A1 blocks section of jurisdiction
Put, docked with B blocks section of jurisdiction, propelling cylinder is held out against after the completion of docking.
6) A2, A3 dismounting, assembly, ventral brush replacing, grease smearing are sequentially completed, removes A2 afterwards it should be noted that in time to A3
Block section of jurisdiction front end surface and both sides end face installation L-type clamp are reinforced to it, can carry out the cleaning of shield tail brush, plane thereunder
The operation such as remove, change.
7) complete the ventral brush at A3 to change with after grease smearing, the position is arrived into the assembly of C blocks, and propelling cylinder is held out against.
8) last assembled K blocks section of jurisdiction.
(6) section of jurisdiction long bolt is tightened up after the completion of the secondary assembly of section of jurisdiction；Remove temporary platform；Piece machine will be fed to move forward again admittedly
It is fixed；Remove extension shaft and oil cylinder seat etc. and reduce fixed assembling machine；And synchronously proceed by machine and break shield tail grease, greasing amount will
Reach untill filling up groove, greasing pressure is defined by reaching 3.5MPa.
(7) check every preparation, recover driving.
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed
With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, it is of the invention and unlimited
In specific details and shown here as the legend with description.
Claims (5)
1. a kind of fixed assembling machine changes the device of shield tail brush, it is characterised in that including：
Slew gear, it is the rotating disk shape of class annular, and it is arranged in the plane vertical with excavation direction, can be in circumferencial direction
360 ° of rotations；
Walking axle and extension shaft, the walking axle are cylindrical, and the outside of its one end, which surrounds, to be welded with perpendicular to its axis
Fixed plate, the first screw is evenly arranged with the fixed plate and the walking axle is screwed by first screw
In on the vertical direction of the rear side of the snatch crossbeam of slew gear, on the bottom surface of the axle other end of walking with the disc of its concentric to
Sunken inside forms the first cylinder shape groove, and first cylinder shape groove caves inward the second screw to be formed and be coaxial therewith；Institute
State extension shaft, its structure being formed in one, its front and rear is coaxial cylinder, the diameter of its anterior cylinder and
It is high with the first cylindrical groove all same, the diameter of the cylinder at its rear portion with it is described walk the direct identical of axle and its
There is the second cylinder shape groove to be formed that caved inward with the disc of its concentric on the bottom surface of rear side, the inside of the extension shaft is set
It is equipped with the cylindrical first through hole coaxial with the anterior cylinder；
Long bolt, the long bolt front portion is fixed by second screw with the walking axle and the long bolt is described in
First through hole, its afterbody are fixed the walking axle and extension shaft by nut；
Section of jurisdiction snatch head, it, which is arranged, is fixed on the walking axle, can be as slew gear is in 360 ° of rotations of circumferencial direction；
Translation oil cylinder, it is fixed on the snatch crossbeam of slew gear and above the walking axle, it is grabbed with the section of jurisdiction
Raise the head and connect and snatch head in section of jurisdiction can be promoted to be moved on the walking axle.
2. fixed assembling machine as claimed in claim 1 changes the device of shield tail brush, it is characterised in that also include,
Oil cylinder seat, the oil cylinder seat include：
Bottom plate, it is rectangular slab and uniformly offers the 3rd screw, and the bottom plate one side vertical with the 3rd screw axis is tight
The rear vertical face of the snatch crossbeam of slew gear is pasted, the oil cylinder seat is fixed on described return by screw by the 3rd screw
On the snatch crossbeam of rotation mechanism；
Supporting plate, it is two identical rectangular slabs, and the side for belonging to a pair of identical length of two supporting plates is equal
It is welded on the bottom plate and vertical with the bottom plate, and eight sides in relative two faces of the supporting plate may be constructed one
Individual cuboid；
Top plate, its level are welded in two supporting plates and parallel with the bottom plate；
Fixed plate, it is two class isosceles triangle plates, the face where its base be welded on the top plate and with the top
Plate is vertical, and relative two side in the face belonged to where the base of two fixed plates may be constructed one it is square, lean on
Subapical position is provided with cylindrical second through hole, translation oil cylinder can be fixed in fixed plate with steady pin.
3. a kind of method that fixed assembling machine installed as described in claim any one of 1-2 changes the device of shield tail brush, its
It is characterised by, specific steps include：
S1：Remove an appearance interim walkway board in both sides；
S2：Extension shaft is arranged on walking axle with long bolt and nut；
S3：Dismantle translation oil cylinder；
S4：Oil cylinder seat is fixed on snatch crossbeam with bolt, and translation oil cylinder is re-started into installation；
S5：Hydraulic tube is simultaneously arranged on groove by spreading pipelining groove；
S6：Debug fixed assembling machine, it is ensured that can change shield tail brush after device installation.
4. a kind of fixed assembling machine using as described in claim any one of 1-2 changes the construction party of the device of shield tail brush
Method, it is characterised in that change after shield tail brush using wrong point position segment assembly method installation section of jurisdiction, remove ring it is initially assembled when with upper ring
The fissure of displacement, section of jurisdiction are removed and section of jurisdiction are removed in units of block, have been changed after shield tail brush again rotates counterclockwise assembly point position and have been spelled again
Tubulature piece.
5. fixed assembling machine as claimed in claim 4 changes the construction method of the device of shield tail brush, it is characterised in that described
Change comprising the following steps that for shield tail brush：
S7：K, B, C block are removed, and excludes the shield tail brush at tri- pieces of sections of jurisdiction of K, B, C rapidly and polishes；
S8：Overlap joint installs new shield tail brush successively, and uses CO2New shield tail brush is welded and carries out grease by the mode of protection weldering
Smear；
S9：After the completion for the treatment of that grease is smeared, carry out the secondary assembly of section of jurisdiction, by B blocks section of jurisdiction turn clockwise behind two point positions and
Its by A3 side reserve K blocks section of jurisdiction position it is assembled again, install longitudinal pipe piece long bolt, withstood with propelling cylinder,
Reuse L-type clamp to reinforce it, the L-type clamp is welded in the shield body of the shield machine；
S10：A1 blocks section of jurisdiction is removed, the shield tail brush being in close contact with A1 blocks section of jurisdiction is changed and smears grease, B is close in A1 blocks section of jurisdiction
Block pipe sheet assembling, B blocks section of jurisdiction and the L-type clamp of A1 blocks section of jurisdiction abutted surface are removed, allows A1 blocks section of jurisdiction to be docked with B blocks section of jurisdiction, docked
After the completion of hold out against propelling cylinder；
S11：Ventral brush at the sequentially dismounting of completion A2, A3 block section of jurisdiction, corresponding section of jurisdiction is changed and grease is smeared, secondary assembly；
S12：It is close to A3 blocks installation C blocks section of jurisdiction, removes L-type steel plate, be close to B blocks and C block assembly K blocks section of jurisdiction.
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| CN201710453302.8A CN107401405B (en) | 2017-06-15 | 2017-06-15 | The device and its construction method of fixed assembling machine replacement shield tail brush |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710453302.8A CN107401405B (en) | 2017-06-15 | 2017-06-15 | The device and its construction method of fixed assembling machine replacement shield tail brush |
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| CN107401405B CN107401405B (en) | 2019-04-02 |
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| CN108643933A (en) * | 2018-04-27 | 2018-10-12 | 中铁十二局集团有限公司 | Shield receives portal reinforcement means |
| CN109057809A (en) * | 2018-08-02 | 2018-12-21 | 中交第二航务工程局有限公司 | The technique for being conveniently replaceable the sliding section of jurisdiction of shield tail brush and replacing shield tail brush using it |
| CN109707386A (en) * | 2018-12-18 | 2019-05-03 | 上海隧道工程有限公司 | The method of disposable replacement first of shield tail brush of shield machine |
| CN114198109A (en) * | 2022-02-17 | 2022-03-18 | 中铁隧道局集团路桥工程有限公司 | Earth pressure balance shield machine and tunneling method thereof |
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| CN105952472A (en) * | 2016-06-27 | 2016-09-21 | 徐工集团凯宫重工南京有限公司 | Superposed pipe section dismounting modular device and turntable type splicing machine including device |
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| JPH01219294A (en) * | 1988-02-26 | 1989-09-01 | Rasa Kogyo Kk | Buried pipe replacement method and device thereof |
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| CN109057809A (en) * | 2018-08-02 | 2018-12-21 | 中交第二航务工程局有限公司 | The technique for being conveniently replaceable the sliding section of jurisdiction of shield tail brush and replacing shield tail brush using it |
| CN109707386A (en) * | 2018-12-18 | 2019-05-03 | 上海隧道工程有限公司 | The method of disposable replacement first of shield tail brush of shield machine |
| CN109707386B (en) * | 2018-12-18 | 2020-10-27 | 上海隧道工程有限公司 | Method for replacing first shield tail brush of shield tunneling machine at one time |
| CN114198109A (en) * | 2022-02-17 | 2022-03-18 | 中铁隧道局集团路桥工程有限公司 | Earth pressure balance shield machine and tunneling method thereof |
| CN114198109B (en) * | 2022-02-17 | 2022-05-27 | 中铁隧道局集团路桥工程有限公司 | Earth pressure balance shield machine and tunneling method thereof |
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|---|---|
| CN107401405B (en) | 2019-04-02 |
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Effective date of registration: 20231214 Address after: 510000 room 1001, No. 162, Gangqian Avenue South, Nansha District, Guangzhou City, Guangdong Province Patentee after: CHINA COMMUNICATIONS (GUANGZHOU) CONSTRUCTION Co.,Ltd. Address before: 430048 No. 11 Jinyinhu Road, Dongxihu District, Wuhan City, Hubei Province Patentee before: CCCC SECOND HARBOR ENGINEERING Co.,Ltd. |