CN114278316B - Method for starting 4 shield machines of half-cover excavation station - Google Patents
Method for starting 4 shield machines of half-cover excavation station Download PDFInfo
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- CN114278316B CN114278316B CN202111423917.9A CN202111423917A CN114278316B CN 114278316 B CN114278316 B CN 114278316B CN 202111423917 A CN202111423917 A CN 202111423917A CN 114278316 B CN114278316 B CN 114278316B
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- 238000009412 basement excavation Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000005641 tunneling Effects 0.000 claims abstract description 66
- 239000000463 material Substances 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 10
- 239000002893 slag Substances 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000004519 grease Substances 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 11
- 238000009434 installation Methods 0.000 description 16
- 238000003466 welding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to the technical field of shield construction, in particular to a method for starting a 4-station shield machine of a half-cover excavation station, which comprises the following steps: step one, paving a track; step two, trolley translation; thirdly, translating the shield tunneling machine body; and step four, starting 4 shield machines. In the construction method, the trolley and the shield machine body are horizontally moved on the horizontal moving track by the horizontal moving device; two electric vehicles are arranged on each shield tunneling machine, one electric vehicle is used for tunneling operation, the other electric vehicle is used for scheduling movement on a bottom plate track and is used for supplying materials for tunneling of the shield tunneling machine and transporting out dregs in tunneling, so that the starting of 4 shield tunneling machines is ensured, and the construction efficiency of multiple shield tunneling machines of a semi-cover tunneling station is improved.
Description
Technical Field
The invention relates to the technical field of shield construction, in particular to a method for starting a 4-station shield machine of a half-cover excavation station.
Background
The half-cover excavation station refers to a subway station constructed by adopting a half-cover excavation method. In the semi-cover excavation method, after the main engineering of the subway station is completed, the station becomes a shield starting or receiving vertical shaft, at this time, the shield starting or reaching end only has one lifting hole position on the shield line of the cover excavation area, so that the shield machine on the shield line of the non-cover excavation area needs to translate to the starting position on the shield line of the non-cover excavation area through the lifting hole position on the shield line of the cover excavation area, thereby performing the starting operation of the shield machine. Because the half-cover underground station is narrow, the originating space is narrow, the track in the station cannot be paved in a conventional mode, and the translation and originating construction difficulty of the shield machine is high.
Disclosure of Invention
Aiming at certain or some defects existing in the prior art, the invention provides a method for starting a 4-station shield tunneling machine of a half-cover excavation station.
In order to solve the technical problems, the invention is solved by the following technical scheme.
A method for starting a 4-station shield tunneling machine of a half-cover excavation station comprises the following steps:
Step one, track laying
The device is used for paving a bottom plate track and a translation track;
Step two, trolley translation
Translating the trolley through a translation device;
Step three, translation of shield tunneling machine body
The translation device in the second step is refitted and used for translating the shield tunneling machine body;
Step four, 4 shield machines are started
8 Storage battery cars are scheduled to move along the bottom plate track, so that the starting of 4 shield machines is ensured.
In the construction method, the trolley and the shield machine body are horizontally moved on the horizontal moving track by the horizontal moving device; two electric vehicles are arranged on each shield tunneling machine, one electric vehicle is used for tunneling operation, the other electric vehicle is used for scheduling movement on a bottom plate track and is used for supplying materials for tunneling of the shield tunneling machine and transporting out dregs in tunneling, so that the starting of 4 shield tunneling machines is ensured, and the construction efficiency of multiple shield tunneling machines of a semi-cover tunneling station is improved.
Preferably, the first step specifically includes the following steps:
S1, laying a bottom plate track
S11, paving first tracks along two parallel shield lines, wherein two parallel first tracks are paved on each shield line;
s12, symmetrically paving two arc-shaped tracks between two parallel shield lines, wherein the arc-shaped tracks are used for connecting adjacent first tracks on the two shield lines;
S2, translational track laying
S21, leveling floors at the end parts of two parallel shield lines;
S22, paving a plurality of first backing plates on the floor along the translation direction of the shield tunneling machine;
S23, paving a plurality of second tracks arranged along the translation direction of the shield machine on the first backing plate in the step S22 in parallel;
S24, coating lubricating grease on the second track in the step S23;
s25, placing a second backing plate on the second track in the step S24.
By the steps in the invention, the laying of the floor rail and the translation rail is preferably achieved.
Preferably, the step S11 specifically includes the steps of:
S111, paving channel steel at intervals of 1.5m along the shield line direction;
s112, a groove is formed in the channel steel;
s113, a T-shaped track is paved in the cutting groove.
Through the steps in the invention, the arrangement of two first tracks in each shield line is preferably realized.
Preferably, the second step specifically includes the following steps:
s31, assembling the translation device according to the length of the trolley;
s32, mounting a moving wheel at the bottom of the translation device in the step S31;
S33, mounting the translation device in the step S32 on a second backing plate;
s34, hoisting the trolley onto the translation device, and pulling the translation device to move along the translation track through the traction hoist to translate the trolley.
Through the steps in the invention, the trolley is preferably moved from the starting end of the shield line in the cover-excavation area to the starting end of the shield line in the non-cover-excavation area, and the trolley is horizontally moved to be in position.
Preferably, the third step specifically includes the following steps:
S41, removing the moving wheel in the translation device in the step S32 according to the length of the shield tunneling machine body, modifying the translation device, and fixing the modified translation device on a second backing plate;
S42, hoisting the shield machine body to the modified translation device in the step S41, and pushing the modified translation device by a jack to move along a second track so as to translate the shield machine body.
Through the steps in the invention, the shield machine body is preferably moved from the starting end of the shield line in the cover-excavation area to the starting end of the shield line in the non-cover-excavation area, so that the translation and positioning of the shield machine body are realized, and the subsequent starting is facilitated.
Preferably, the fourth step specifically includes the following steps:
S51, a 1# shield tunneling machine is provided with a 1# battery car and a 2# battery car, and when the 1# battery car works in tunneling, the 2# battery car discharges materials in a 1# muck hole;
S52, a 2# shield machine is matched with 3# and 4# electric vehicles, the 3# electric vehicle is used for tunneling in a tunnel, and the 4# electric vehicle moves to a 2# muck hole to slag the material;
S53, a 3# shield machine is matched with 5# and 6# electric vehicles, the 5# electric vehicle is used for tunneling in a tunnel, and the 6# electric vehicle moves to a 3# muck hole to slag the material;
s54, a No. 4 shield tunneling machine is matched with No. 7 and No. 8 electric vehicles, and when the No. 7 electric vehicle works in tunneling, the No. 8 electric vehicle discharges materials in a No. 4 muck hole.
Through the steps in the invention, when 4 shield machines are simultaneously constructed, 8 storage battery cars can be simultaneously scheduled on the bottom plate track, so that shield construction of the shield machines is satisfied.
Drawings
Fig. 1 is a schematic diagram of an electric vehicle dispatching in embodiment 1;
fig. 2 is a schematic view of the channel steel in embodiment 1;
FIG. 3 is a schematic plan view of the floor rail in example 1;
FIG. 4 is a schematic diagram of a translation device for translating a shield tunneling machine body according to embodiment 2;
Fig. 5 is a schematic view of a translation carriage of the translation device in embodiment 2;
FIG. 6 is a schematic view of the support in example 2;
Fig. 7 is a schematic cross-sectional view of the support in embodiment 2;
FIG. 8 is a schematic cross-sectional view of the leg and diagonal brace of example 2;
FIG. 9 is a schematic view of the disk in example 2;
FIG. 10 is a schematic view of a lever in embodiment 2;
FIG. 11 is a partial schematic view of the work plate and the stopper in embodiment 2;
fig. 12 is a schematic view of the base plate in embodiment 2.
Detailed Description
For a further understanding of the present invention, the present invention will be described in detail with reference to the drawings and examples. It is to be understood that the examples are illustrative of the present invention and are not intended to be limiting.
Example 1
As shown in fig. 1 to 5, the embodiment provides a method for starting a shield tunneling machine at a station with a half-cover, which includes the following steps:
Step one, track laying
The device is used for paving a bottom plate track and a translation track;
Step two, translation of trolley 120
Translating the trolley 120 by a translation device;
Step three, translation of shield tunneling machine body 130
The translation device in the second step is modified to translate the shield tunneling machine body 130;
Step four, 4 shield machines are started
8 Storage battery cars are scheduled to move along the bottom plate track, so that the starting of 4 shield machines is ensured.
In the construction method in this embodiment, the shield machine body 130 and the trolley 120 on the shield line in the non-covered-excavation region of the semi-covered-excavation station need to be lifted to the translation device in the covered-excavation region, and translated to the starting position on the shield line in the non-covered-excavation region along the translation track; in the construction method, 4 shield machines are started after the end parts of the shield line in the covered excavation area and the shield line in the non-covered excavation area are in place respectively, each shield machine is provided with two electric vehicles, one electric vehicle is used for tunneling operation, the other electric vehicle is used for moving on a bottom plate track and is used for supplying materials for tunneling the shield machines and transporting out the residue soil in tunneling, so that the starting of the 4 shield machines is ensured, and the construction efficiency of a plurality of shields in a semi-covered excavation station is improved.
Preferably, the first step specifically includes the following steps:
S1, laying a bottom plate track
S11, paving first tracks 15 along two parallel shield lines, wherein two parallel first tracks 15 are paved on each shield line;
S12, symmetrically paving two arc-shaped tracks 16 between two parallel shield lines, wherein the arc-shaped tracks 16 are used for connecting adjacent first tracks 15 on the two shield lines;
S2, translational track laying
S21, leveling floors at the end parts of two parallel shield lines, wherein sundries are not contained on the floors at the starting end parts of the two shield lines, and translation conditions are met;
S22, paving a plurality of first base plates 140 on the floor along the translation direction of the shield machine, wherein in the step, the first base plates are steel plates with the thickness of 20mm, the spacing between the steel plates is 1m, and the steel plates are welded and fixed with the floor bar planting;
S23, paving a plurality of second tracks 150 which are arranged along the translation direction of the shield machine on the first backing plate 140 in the step S22 in parallel, wherein the tracks are distributed at intervals of 500mm and are fixed on the first backing plate 140 through seven-plate welding;
s24, coating lubricating grease on the second track 150 in the step S23;
S25, placing a second backing plate on the second rail 150 in the step S24, wherein the second backing plate is made of a steel plate with the thickness of 20 mm.
By the steps in this embodiment, the laying of the floor rail and the translation rail is preferably achieved.
Preferably, the step S11 specifically includes the steps of:
s111, paving channel steel 31 at intervals of 1.5m along the shield line direction, wherein in the step, the length of each channel steel 31 is 2.5m;
S112, grooves 32 are formed in the channel steel 31, and in the step, 4 grooves 32 are symmetrically formed;
in S113, T-shaped rails 41 are laid in the slit 32, and in this step, two T-shaped rails located in adjacent slits 32 form one first rail 15.
By the steps in this embodiment, the arrangement of two first tracks 15 in each shield line is preferably achieved.
Preferably, the second step specifically includes the following steps:
S31, assembling the translation device according to the length of the trolley 120;
s32, mounting a moving wheel at the bottom of the translation device in the step S31;
S33, mounting the translation device in the step S32 on a second backing plate;
S34, hoisting the trolley 120 onto the translation device, and pulling the translation device to move along the translation track through the traction hoist to translate the trolley 120.
Through the steps in this embodiment, it is preferably achieved that the trolley 120 is moved from the originating end of the cover-cut shield line to the originating end of the non-cover-cut shield line, enabling translational seating of the trolley 120.
Preferably, the third step specifically includes the following steps:
s41, removing the moving wheel in the translation device in the step S32 according to the length of the shield tunneling machine body 130, modifying the translation device, and fixing the modified translation device on a second backing plate;
s42, hoisting the shield machine body 130 to the modified translation device in the step S41, jacking the modified translation device by a jack 160, and moving along the second track 150 to translate the shield machine body 130.
Through the steps in this embodiment, the shield machine body 130 is preferably moved from the originating end of the shield line in the covered excavation area to the originating end of the shield line in the non-covered excavation area, so that the translation of the shield machine body 130 is realized in place, and the subsequent originating is facilitated.
Preferably, the fourth step specifically includes the following steps:
S51, a 1# shield machine 21 is matched with a 1# battery car and a 2# battery car, and when the 1# battery car works in tunneling, the 2# battery car discharges materials in a 1# muck hole 11;
S52, a 2# shield machine 22 is matched with 3# and 4# electric vehicles, the 3# electric vehicle is used for tunneling in a tunnel, and the 4# electric vehicle moves to a 2# muck hole 12 to slag materials through an arc track 16;
S53, a 3# shield machine 23 is matched with 5# and 6# electric vehicles, the 5# electric vehicles are used for tunneling in a tunnel, and the 6# electric vehicles move to the 3# muck hole 13 through the arc-shaped track 16 to slag the materials;
s54, the 4# shield tunneling machine 24 is matched with 7# and 8# electric vehicles, and when the 7# electric vehicle is in tunneling operation, the 8# electric vehicle is used for discharging materials from the 4# muck hole 14.
In the actual implementation process, 4 slag outlets are arranged on the shield line of the cover-excavation area at intervals and are used for carrying out slag soil out of 4 shield machines on the two shield lines and conveying materials such as pipe pieces to the corresponding shield machines; in the embodiment, two storage battery cars are arranged on each shield machine, the storage battery cars on the shield line of the non-cover-excavation region are guided to the corresponding slag hole on the shield line of the cover-excavation region through the arc-shaped track, slag and material supply are preferably carried out on the shield machine of the non-cover-excavation region, and smooth starting of the shield machine of the non-cover-excavation region is ensured; simultaneously, two first tracks 15 are arranged on each shield line, so that the two storage battery cars equipped on each shield machine can be conveniently moved and scheduled, and the storage battery cars on the shield line in the cover-excavation area can be conveniently moved to the corresponding muck holes, thereby ensuring that 4 shield machines are simultaneously constructed.
Example 2
As shown in fig. 4 to 12, in this embodiment, a translation device is provided, which is used to translate the trolley 120 and the shield tunneling machine body 130 in position in embodiment 1.
The translation device in this embodiment includes a translation assembly, the translation assembly includes a bottom plate 100, support members 110 are symmetrically arranged on the bottom plate 100, each support member 110 includes parallel and inclined support legs 200, inclined support legs 210 are arranged on the support legs 200, upper ends of the support legs 200 are connected through connecting blocks 220, mounting grooves 221 are formed in upper sides of the connecting blocks 220, a working plate 300 capable of being horizontally rotated to be used for bearing a trolley 120 is hinged in the mounting grooves 221, and a driving mechanism for driving the working plate 300 to be rotated to be inclined is arranged in the mounting grooves 221 and used for supporting a shield tunneling machine body 130.
In the practical use process, the translation device in this embodiment is assembled according to the practical lengths of the trolley 120 and the shield tunneling machine body 130, and is formed by connecting parallel connecting columns with translation components, and two ends of the connecting columns are fixedly connected to adjacent bottom plates 100 through welding.
In this embodiment, when the rotation of the working plate 300 on the connection block 220 is horizontal, the working plate is used to carry the trolley 120, so that the translation device can support the trolley 120 to translate; the working plate 300 rotates to an inclination state that the working surface of the working plate 300 is level with the working side surface of the connecting block 220, so that the working surface of the working plate 300 can support the shield machine body 130 positioned between the supporting pieces 110, and the translation device can translate the shield machine body 130; in this embodiment, the driving mechanism drives the working plate 300 to rotate, so that the two states of the working plate 300 are preferably adjusted conveniently.
In this embodiment, hinge grooves 222 are oppositely formed in the opposite end walls of the mounting groove 221; the end of the working plate 300 is provided with a hinge post 711 extending into the corresponding hinge groove 222, and the bottom wall of the mounting groove 221 is provided with a tension spring 700 for pulling the working plate 300 to rotate to the horizontal.
By the configuration in the present embodiment, the hinge post 711 extends into the hinge groove 222, so that the working plate 300 is hinged in the mounting groove 221, and the working plate 300 is pulled by the tension spring 700 to rotate to the horizontal direction all the time by the tension spring 700, so that the trolley 120 is supported and translated conveniently.
In this embodiment, the width of the working plate 300 is wider than the mounting groove 221, so that one side of the working plate 300 extends out of the mounting groove 221, and when the working plate 300 rotates to be horizontal, one side wall of the mounting groove 221 can support the working plate 300, preferably ensures that the working plate 300 is horizontal, and is convenient for supporting the trolley 120.
In this embodiment, a first cavity 223 communicating with the bottom wall of the mounting groove 221 is provided in the supporting leg 200, a plugging ring 320 is provided at the opening of the first cavity 223, a second cavity 311 coaxially provided with the first cavity 223 is provided on the bottom wall of the first cavity 223, a ratchet slot 411 is provided at the opening of the second cavity 311, a chute 412 communicating with the ratchet slot 411 at intervals is provided on the side wall of the second cavity 311 along the length direction thereof, and a limit chute 312 communicating with the second cavity 311 is provided on the side surface of the supporting leg 200 along the length direction thereof; the driving mechanism comprises a disc 330 positioned in a first cavity 223, a jack post 331 penetrating through the plugging ring 320 and extending into the mounting groove 221 and used for jacking the working plate 300 is arranged on the upper side surface of the disc 330, a first spring 321 used for pushing the disc 330 to move downwards is sleeved on the jack post 331, a sliding post 332 extending into a second cavity 311 is arranged on the lower side surface of the disc 330, a first sliding block 510 extending into a corresponding sliding groove 412 is arranged on the side surface of the sliding post 332, and a first inclined surface 511 matched with the ratchet groove 411 is arranged on the lower end surface of the first sliding block 510; the driving mechanism further comprises a deflector rod 340 positioned in the second cavity 311, a deflector column 341 extending out of the limiting chute 312 is arranged on the deflector rod 340, a second sliding block 610 positioned in the corresponding chute 412 is arranged on the side wall of the deflector rod 340, a second inclined surface 611 is arranged on the second sliding block 610, and when the deflector rod 340 drives the second sliding block 610 to move upwards along the chute 412, the second inclined surface 611 is used for extruding with the first inclined surface 511 to push the first sliding block 510 to slide into the corresponding ratchet slot 411.
In practical use, the driving mechanism in this embodiment drives the driving lever 340 to move up along the second cavity 311 by lifting the column 341 along the limit chute 312, so that the second slider 610 pushes the first slider 510 to move up along the chute 412 to drive the disc 330 to move up, so that the top column 331 moves up to push the working plate 300 to rotate, and the first slider 510 slides into the ratchet slot 411 to push the working plate 300 to maintain an inclined state under the guiding and matching action between the first inclined surface 511 and the second inclined surface 611; when the lifting column 341 is lifted again, the first slider 510 is rotated and slid into the ratchet slot 411 and slid into the slide slot 412 under the guiding action of the first inclined surface 511 and the second inclined surface 611, and the top column 331 is retracted into the first mounting cavity 223, so that the working plate 300 is rotated to be horizontal under the action of the tension spring 700, and through the structure in the embodiment, the two states of the working plate 300 are preferably switched, and the operation is simple and convenient.
In this embodiment, a limiting member for limiting the trolley 120 is disposed on the working plate 300, sliding grooves 721 are disposed on the working plate 300 in parallel along the length direction thereof, stepped grooves are disposed at the ends of the sliding grooves 721 disposed on the upper plate surface of the working plate 300, and spring mounting grooves 722 are disposed at the ends of the sliding grooves 721 disposed on the lower plate surface of the working plate 300; the limiting piece comprises limiting plates 730 which are arranged in parallel in corresponding sliding grooves 721, the lower end parts of the limiting plates 730 are connected through connecting plates 740, notch 741 for allowing corresponding jacking columns 331 to pass through is formed in each connecting plate 740, two end parts of each limiting plate 730 extend outwards to form mounting parts 731, guide rods 732 which penetrate through the working plates 300 are arranged between the mounting parts 731, second springs which are located in spring mounting grooves 722 are sleeved on the guide rods 732 and used for pushing the limiting plates 730 to move downwards, and when the working plates 300 rotate to be horizontal, the side walls of the mounting grooves 221 are used for pushing the connecting plates 740 to move upwards to drive the limiting plates 730 to extend out of the sliding grooves 721.
Through the configuration in the present embodiment, when the working plate 300 rotates to be horizontal, the side wall of the mounting groove 221 can squeeze the lower plate surface of the connecting plate 740, so that the limiting plate 730 moves up and extends out along the sliding groove 721, forming a mounting chute for limiting the wheels of the trolley 120, so as to facilitate the translation of the trolley 120; when the driving mechanism lifts the working plate 300 to be level with the working side of the connecting block 220, the second spring pushes the limiting plate 730 to move downwards, so that the limiting plate is contained in the mounting groove 221, the working surface of the working plate 300 is preferably level, and the working plate 300 is preferably convenient for supporting the shield tunneling machine body 130; in this embodiment, the working surface of the working plate 300 is provided with a groove flush with the stepped groove, so that the limiting plate 730 is preferably accommodated in the groove, the upper side surface of the limiting plate is flush with the working surface of the working plate 300, and the working plate 300 is preferably used for supporting the side wall of the shield tunneling machine body 130 between the supporting members 110, so that the translation of the shield tunneling machine body 130 is facilitated.
In this embodiment, an installation slot 811 is formed on the upper side surface of the bottom plate 100 in parallel along the length direction of the bottom plate, an installation fixture block 230 extending into the corresponding installation slot 811 is formed on the lower end surface of the supporting leg 200, an installation cavity 351 communicated with the second cavity 311 is formed in the installation fixture block 230, a clamping block 360 is symmetrically formed in the installation cavity 351, a positioning pin 620 extending out of the installation fixture block 230 is arranged on the clamping block 360, a third spring 621 pushing the clamping blocks 360 to approach each other is sleeved on the positioning pin 620, and a third inclined surface 622 is formed on the clamping block 360; a limiting groove 313 is formed in the side wall of the second cavity 311 along the length direction, a baffle 630 is arranged in the second cavity 311, and a limiting block 631 positioned in the corresponding limiting groove 313 is arranged on the baffle 630; the lower tip of driving lever 340 is equipped with the inserted bar 342 that passes baffle 630, and the cover is equipped with on the inserted bar 342 and is located the baffle 630 below and be used for promoting the fourth spring 640 that the inserted bar 342 lower extreme stretched into in the installation cavity 351, and the lower tip of inserted bar 342 is equipped with the dog 650, is equipped with on the dog 650 and cooperatees the fourth inclined plane 651 that drive locating pin 620 stretched out installation fixture block 230 with third inclined plane 622, is equipped with along length direction interval on the lateral wall that installation draw-in groove 811 is relative and supplies locating pin 620 male locating hole 812.
In this embodiment, the limiting block 631 is located in the limiting groove 313 and slides, so that the baffle 630 can be slidably installed in the second cavity 311, and further the fourth spring 640 always pushes the inserting rod 342 to extend into the installation cavity 351, which pushes the third inclined surface 622 through the fourth inclined surface 651 on the inserting block 650 to separate the clamping block 360 from each other in the installation cavity 351, so that the positioning pin 620 extends out of the installation clamping block 230 and is clamped into the corresponding positioning hole 812, the supporting element 110 is fixed on the bottom plate 100, when the lifting column 341 drives the lifting rod 340 to move upwards along the limiting chute 312, the inserting rod 342 drives the inserting block 650 to retract into the second installation cavity 311, the third spring 621 pushes the clamping blocks 360 to be close to each other, and drives the positioning pin 620 to retract into the installation cavity 351, thereby releasing the fixation of the supporting element 110, and enabling the clamping block to move along the installation clamping groove 811, and thus adjusting the distance between the supporting elements 110, and preferably adapting to shield machine bodies 130 of different sizes.
In this embodiment, the length of the mounting slot 811 is shorter than the distance between the leg 200 and the lower end of the diagonal brace 210, so that the diagonal brace 210 is always located on the upper side of the bottom plate 100 when the support member 110 is mounted on the bottom plate 100, and in order to make the support member 110 support the shield machine body 130, in the actual use process, the strength of the translation assembly is increased by welding and fixing the diagonal brace 210 on the base 100, so that the support of the shield machine body 130 is facilitated.
In summary, the foregoing description is only of the preferred embodiments of the present invention, and all equivalent changes and modifications made in accordance with the claims should be construed to fall within the scope of the invention.
Claims (6)
1. A method for starting a 4-station shield tunneling machine of a half-cover excavation station comprises the following steps:
Step one, track laying
The device is used for paving a bottom plate track and a translation track;
step two, the trolley (120) translates
Translating the trolley (120) by a translation device;
step three, translation of the shield tunneling machine body (130)
The translation device in the second step is modified to translate the shield tunneling machine body (130);
Step four, 4 shield machines are started
8 Storage battery cars are scheduled to move along the bottom plate track, so that the starting of 4 shield machines is ensured;
The translation device comprises a translation assembly, the translation assembly comprises a bottom plate (100), supporting pieces (110) are symmetrically arranged on the bottom plate (100), the supporting pieces (110) comprise supporting legs (200) which are arranged in parallel and obliquely, inclined struts (210) are arranged on the supporting legs (200), the upper ends of the supporting legs (200) are connected through connecting blocks (220), mounting grooves (221) are formed in the upper side surfaces of the connecting blocks (220), working plates (300) which can be horizontally used for bearing frames (120) are hinged in the mounting grooves (221), and driving mechanisms which are used for driving the working plates (300) to be obliquely used for supporting shield tunneling machine bodies (130) are arranged in the mounting grooves (221);
A first cavity (223) communicated with the bottom wall of the mounting groove (221) is arranged in the supporting leg (200), a plugging ring (320) is arranged at the opening of the first cavity (223), a second cavity (311) coaxially arranged with the first cavity (223) is arranged on the bottom wall of the first cavity (223), a ratchet slot (411) is arranged at the opening of the second cavity (311), sliding grooves (412) communicated with the ratchet slot (411) at intervals are arranged on the side wall of the second cavity (311) along the length direction of the side wall of the second cavity, and a limiting sliding groove (312) communicated with the second cavity (311) is arranged on the side surface of the supporting leg (200) along the length direction of the side wall of the second cavity; the driving mechanism comprises a disc (330) positioned in a first cavity (223), a jack post (331) penetrating through the plugging ring (320) to extend into the mounting groove (221) and used for jacking the working plate (300) is arranged on the upper side surface of the disc (330), a first spring (321) used for pushing the disc (330) to move downwards is sleeved on the jack post (331), a sliding post (332) extending into a second cavity (311) is arranged on the lower side surface of the disc (330), a first sliding block (510) extending into a corresponding sliding groove (312) is arranged on the side surface of the sliding post (332), and a first inclined surface (511) matched with the ratchet groove (411) is arranged on the lower end surface of the first sliding block (510); the driving mechanism further comprises a deflector rod (340) positioned in the second cavity (311), a deflector column (341) extending out of the limiting chute (312) is arranged on the deflector rod (340), a second sliding block (610) positioned in the corresponding chute (412) is arranged on the side wall of the deflector rod (340), a second inclined surface (611) is arranged on the second sliding block (610), and when the deflector rod (340) drives the second sliding block (610) to move upwards along the chute (412), the second inclined surface (611) is used for extruding with the first inclined surface (511) to push the first sliding block (510) to slide into the corresponding ratchet slot (411).
2. The method for starting the 4 shield tunneling machine of the half-cover excavation station of claim 1, which is characterized by comprising the following steps: the first step specifically comprises the following steps:
S1, laying a bottom plate track
S11, paving first tracks (15) along two parallel shield lines, wherein two parallel first tracks (15) are paved on each shield line;
S12, symmetrically paving two arc-shaped tracks (16) between two parallel shield lines, wherein the arc-shaped tracks (16) are used for connecting adjacent first tracks (15) on the two shield lines;
S2, translational track laying
S21, leveling floors at the end parts of two parallel shield lines;
s22, paving a plurality of first backing plates (140) on the floor along the translation direction of the shield tunneling machine;
s23, paving a plurality of second tracks (150) which are arranged along the translation direction of the shield machine on the first backing plate (140) in the step S22 in parallel;
s24, coating lubricating grease on the second track (150) in the step S23;
S25, placing a second backing plate on the second track (150) in the step S24.
3. The method for starting the 4 shield tunneling machine of the half-cover excavation station of claim 2, which is characterized by comprising the following steps: the step S11 specifically includes the following steps:
s111, paving channel steel (31) at intervals of 1.5m along the shield line direction;
s112, a groove (32) is formed in the channel steel (31);
s113, a T-shaped track (41) is paved in the cutting groove (32).
4. The method for starting the 4 shield tunneling machine of the half-cover excavation station of claim 2, which is characterized by comprising the following steps: the second step specifically comprises the following steps:
s31, assembling the translation device according to the length of the trolley (120);
s32, mounting a moving wheel at the bottom of the translation device in the step S31;
S33, mounting the translation device in the step S32 on a second backing plate;
S34, hoisting the trolley (120) to a translation device, and pulling the translation device to move along a translation track through a traction hoist to translate the trolley (120);
Wherein, the working plate (300) is provided with a limiting part for limiting the trolley (120), the working plate (300) is provided with sliding grooves (721) in parallel along the length direction, the end part of the sliding groove (721) positioned on the upper plate surface of the working plate (300) is provided with a step groove, and the end part of the sliding groove (721) positioned on the lower plate surface of the working plate (300) is provided with a spring mounting groove (722); the limiting piece comprises limiting plates (730) which are arranged in the corresponding sliding grooves (721) in parallel, the lower ends of the limiting plates (730) are connected through connecting plates (740), notch (741) for allowing the corresponding jack-up posts (331) to pass through is formed in the connecting plates (740), the two end parts of the limiting plates (730) extend outwards to form mounting parts (731), guide rods (732) which penetrate through the working plates (300) are arranged between the mounting parts (731), second springs which are arranged in the spring mounting grooves (722) are sleeved on the guide rods (732) and are used for pushing the limiting plates (730) to move downwards, and when the working plates (300) rotate to be horizontal, the side walls of the mounting grooves (221) are used for pushing the connecting plates (740) to move upwards to drive the limiting plates (730) to extend out of the sliding grooves (721);
When the working plate (300) rotates to be horizontal, the side wall of the mounting groove (221) can squeeze the lower plate surface of the connecting plate (740), so that the limiting plate (730) moves upwards to extend out along the sliding groove (721) to form a mounting sliding groove for limiting the wheels of the trolley (120).
5. The method for starting the 4 shield tunneling machine of the half-cover excavation station of claim 4, which is characterized by comprising the following steps: the third step specifically comprises the following steps:
s41, removing the moving wheel in the translation device in the step S32 according to the length of the shield tunneling machine body (130), modifying the translation device, and fixing the modified translation device on a second backing plate;
S42, hoisting the shield machine body (130) to the modified translation device in the step S41, jacking the modified translation device by a jack (160) to move along a second track (150) and translating the shield machine body (130);
When the driving mechanism lifts the working plate (300) to be level with the working side surface of the connecting block (220), the second spring pushes the limiting plate (730) to move downwards, so that the limiting plate is contained in the mounting groove (221), the working surface of the working plate (300) is level, and then the working plate (300) supports the shield tunneling machine body (130).
6. The method for starting the 4 shield tunneling machine of the half-cover excavation station of claim 4, which is characterized by comprising the following steps: the fourth step comprises the following steps:
S51, a 1# shield tunneling machine (21) is provided with a 1# battery car and a 2# battery car, and when the 1# battery car works in tunneling, the 2# battery car discharges materials in a 1# muck hole (11);
S52, a 2# shield machine (22) is matched with 3# and 4# electric vehicles, the 3# electric vehicle is used for tunneling operation in a tunnel, and the 4# electric vehicle moves to a 2# muck hole (12) to slag materials;
S53, a 3# shield machine (23) is matched with a 5# battery car and a 6# battery car, the 5# battery car is used for tunneling in a tunnel, and the 6# battery car moves to a 3# muck hole (13) to slag materials;
s54, the 4# shield tunneling machine (24) is matched with the 7# and 8# electric vehicles, and when the 7# electric vehicle is used for tunneling operation, the 8# electric vehicle is used for discharging materials in the 4# muck hole (14).
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| CN114278315A (en) * | 2021-11-26 | 2022-04-05 | 中铁十局集团第三建设有限公司 | Underground integral translation method for shield tunneling machine of half-covered excavation station |
| CN217055161U (en) * | 2021-11-26 | 2022-07-26 | 中铁十局集团第三建设有限公司 | Shield translation starting construction device for subway station by half-width cover excavation method |
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| JP3106004B2 (en) * | 1992-06-09 | 2000-11-06 | 株式会社鴻池組 | Simultaneous simultaneous tunnel construction method and equipment |
| CN105298503B (en) * | 2015-09-16 | 2017-12-19 | 中铁十局集团第三建设有限公司 | Small space shield machine separate launching construction method |
| CN105545313A (en) * | 2016-02-02 | 2016-05-04 | 中铁十九局集团轨道交通工程有限公司 | T-shaped concealed excavated tunnel shield tunneling machine backup trolley lowering translation system and method thereof |
| KR102029202B1 (en) * | 2019-03-14 | 2019-10-07 | (주)성진이엔씨 | A tunnel excavation apparatus that is moving by itself |
| CN211370487U (en) * | 2019-10-14 | 2020-08-28 | 北京市轨道交通建设管理有限公司 | Trolley translation device and trolley translation system |
| CN110645004B (en) * | 2019-10-16 | 2024-02-02 | 中铁十一局集团城市轨道工程有限公司 | Method for turning shield machine trolley in negative two layers of operated station |
| CN112593947A (en) * | 2020-12-11 | 2021-04-02 | 腾达建设集团股份有限公司 | Translation device and method for shield tunneling machine rear matching trolley |
| CN113175330A (en) * | 2021-06-17 | 2021-07-27 | 中铁三局集团有限公司 | Translation station-passing tool and translation station-passing method for shield machine |
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| CN114278315A (en) * | 2021-11-26 | 2022-04-05 | 中铁十局集团第三建设有限公司 | Underground integral translation method for shield tunneling machine of half-covered excavation station |
| CN217055161U (en) * | 2021-11-26 | 2022-07-26 | 中铁十局集团第三建设有限公司 | Shield translation starting construction device for subway station by half-width cover excavation method |
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