CN111022063A - Rotary translation lifting trolley for shield machine rear corollary equipment in limited space - Google Patents
Rotary translation lifting trolley for shield machine rear corollary equipment in limited space Download PDFInfo
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- CN111022063A CN111022063A CN201911314204.1A CN201911314204A CN111022063A CN 111022063 A CN111022063 A CN 111022063A CN 201911314204 A CN201911314204 A CN 201911314204A CN 111022063 A CN111022063 A CN 111022063A
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- 238000013519 translation Methods 0.000 title claims abstract description 93
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 114
- 239000010959 steel Substances 0.000 claims abstract description 114
- 230000003137 locomotive effect Effects 0.000 claims abstract description 23
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 229910000746 Structural steel Inorganic materials 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 230000005641 tunneling Effects 0.000 claims 2
- 238000010276 construction Methods 0.000 abstract description 23
- 238000000034 method Methods 0.000 abstract description 23
- 230000008569 process Effects 0.000 abstract description 8
- 230000008859 change Effects 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 abstract description 3
- 230000014616 translation Effects 0.000 description 74
- 238000013461 design Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006658 host protein synthesis Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
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- 230000000149 penetrating effect Effects 0.000 description 1
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- 238000005096 rolling process Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
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- Lining And Supports For Tunnels (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a rotary translation lifting trolley for rear corollary equipment of a shield machine in a limited space, which comprises a rear corollary equipment moving system, a profile steel frame system and a universal wheel assembly, wherein the rear corollary equipment moving system is connected with the profile steel frame system through a universal wheel assembly; the rear supporting equipment moving system comprises a variable frequency locomotive and a walking steel rail, the rear supporting equipment is pulled to the translation trolley through the variable frequency locomotive, the section steel frame system comprises a hydraulic jacking system and a section steel frame structure, the lifting function of the translation trolley is realized, and the universal wheel assembly is installed at a reinforcing node of the section steel frame system, so that the rotation and translation functions of the translation trolley are realized. The invention can be freely operated in a limited space in the construction process of the shield machine, meets the requirement of different stations on the height change of the translation trolley, can fully ensure that the rear supporting equipment can safely and quickly carry out rotation and translation construction, and solves the technical problems of complicated working procedures, long time, unidirectional linear translation and the like caused by the conventional track laying and translation method of the rear supporting equipment.
Description
Technical Field
The invention relates to the technical field of shield machine construction, in particular to a sinking construction method of a double-wall steel cofferdam under the condition of a deep clay layer.
Background
At present, subway line planning in medium and long periods is established in many cities so as to relieve the urban traffic jam phenomenon, and shield tunnel is widely applied to construction of subway interval tunnels due to the characteristics of high efficiency, rapidness, safety and economy. However, when a subway is built in a busy area, the surrounding environment is complex, the building is dense, the traffic is heavy, the field construction condition is greatly influenced by the surrounding environment, in order to reduce the influence on urban traffic, the subway station is usually constructed by adopting a half-cover excavation method, the traffic is dredged in several periods, the shield starting and receiving site is narrow, the top plate on one side of the end of the station is closed, a hoisting wellhead is not arranged, the conventional hoisting process of the shield machine is limited, and the shield machine can carry out starting and receiving hoisting operation after being translated.
The shield machine main machine translation method is generally a rolling rod method, a steel plate contact method and a mobile trolley method, the conventional translation method of the rear corollary equipment is a steel plate contact method and generally a sliding platform is laid on a bottom plate, a welded steel plate is placed on the sliding platform after the rear corollary equipment wheel pair is cut off, the rear corollary equipment is pulled to a wellhead and lifted out in a straight line through a power system, the conventional method needs to be matched after jacking, the wheel pair is cut off and the sliding platform is laid, the construction process is complex, the translation construction period is long, and only the straight line translation can be carried out.
Due to the complex surrounding environment, dense building, heavy traffic and the influence of a station transfer structure, the space of a station shield well section is very limited, the space size requirement of shield host translation can only be just met, the size of the rear supporting equipment of the shield machine is longer than the length of the shield host, the rear supporting equipment cannot be translated to a hoisting well mouth in a straight line by adopting a conventional method, and the rear supporting equipment needs to be rotated by 90 degrees and then translated to a destination.
Generally, a single section of a subway project relates to different stations, the height between a tunnel door structure and a bottom plate of the different stations is not consistent, so that the height of an underground translation device of rear supporting equipment needs to be changed, and the device used in the conventional translation method is basically disposable, only can be suitable for a certain height, can be detached after being used up, is poor in reusability, causes material waste and increases the cost.
Disclosure of Invention
In order to overcome the technical defects that the height of rear corollary equipment cannot be adjusted and the corollary equipment does not have a rotating function due to limited space in the construction of a shield machine in the prior art, the invention provides a rotating and translating lifting trolley for the rear corollary equipment of the shield machine in the limited space, which can be freely operated in the limited space, is suitable for the requirement of different stations on the height change of the translating trolley, fully ensures that the rear corollary equipment can safely and quickly carry out rotating and translating construction, and solves the technical problems.
The invention achieves the aim through the following technical scheme, and the rotary translation lifting trolley for the rear corollary equipment of the shield machine in the limited space comprises a rear corollary equipment moving system, a section steel frame system and a universal wheel assembly; the rear supporting equipment moving system comprises a variable frequency locomotive and a walking steel rail, the rear supporting equipment is pulled to the translation trolley through the variable frequency locomotive, the section steel frame system comprises a hydraulic jacking system and a section steel frame structure, the lifting function of the translation trolley is realized, and the universal wheel assembly is installed at a reinforcing node of the section steel frame system, so that the rotation and translation functions of the translation trolley are realized.
The rear supporting equipment moving system is characterized in that the rear supporting equipment is fixedly connected with the variable frequency locomotive, the rear supporting equipment and the variable frequency locomotive are pulled to drive to or leave the translation trolley by the variable frequency locomotive, the rear supporting equipment and the variable frequency locomotive travelling steel rails are composed of four rows of steel rails, two rows of steel rails on the outer side are rear supporting equipment travelling steel rails, two rows of steel rails on the inner side are variable frequency locomotive travelling steel rails, the rear supporting equipment moving system is fixed on the section steel frame system through a steel rail pressing plate, and a plurality of screws for fixing rails are welded on.
The hydraulic jacking system comprises 8 self-locking hydraulic jacks of 10 tons, a set of hydraulic pump stations is equipped for synchronous jacking, bolted steel plates are welded on a jack base and the top of a piston rod and are connected with a profile steel frame structure through bolts, and the jacks are installed on profile steel frame structure nodes corresponding to universal wheels.
Shaped steel frame construction comprises upper portion frame, support column, lower part frame, and upper portion frame and lower part frame are the planar structure that the shaped steel is indulged and is transversely spliced and form, and upper and lower framework passes through the intermediate strut post to be connected, upper and lower part frame passes through the intermediate strut post to be connected, the support column can comprise overcoat steel bushing and embedded steel pipe, and the support column welds with upper and lower framework respectively, and embedded steel pipe external diameter slightly is less than overcoat steel pipe internal diameter, and the bolt hole is all seted up with embedded steel pipe to the overcoat steel bushing, penetrates the bolt hole through the bolt and fixes, and the accessible manual adjustment. .
The universal wheel assembly is 8 10-ton fully-forged steel universal wheels, the wheel surface is provided with radian, the contact area with the ground is reduced, and the frictional resistance is reduced, the universal wheels are used as important components for vertical bearing and 360-degree rotary movement of the translation trolley, and are arranged below a hydraulic jack in the profile steel frame system, so that the translation trolley rotates and translates through the universal wheels;
foretell a rotatory translation lift dolly that is used for shield structure machine back corollary equipment in finite space, shaped steel frame construction divide into two along length direction, reduces the size of translation dolly, and convenient transportation and equipment, the bolt hole is all seted up with fixed connection splint to the shaped steel end, through fixed splint high strength bolted connection, forms wholly.
According to the rotary translation lifting trolley for the rear corollary equipment of the shield machine in the limited space, the universal wheel can be welded or bolted with the lower frame through the universal wheel connecting plate, the universal wheel connecting plate and the lower frame are welded by adopting carbon dioxide arc welding, and the bolt connection needs to be realized by arranging corresponding hole positions on the base of the lower frame and adopting high-strength bolts of 8.8 grade and above for positioning connection.
Generally, compared with the prior art, the technical scheme of the invention can achieve the following beneficial effects:
1. the rotary translation lifting trolley for the rear corollary equipment of the shield machine in the limited space can be freely operated in the limited space, meets the requirement of different stations on the height change of the translation trolley, can fully ensure that the rear corollary equipment can safely and quickly carry out rotary and translation construction, and solves the technical problems of complicated working procedures, long time, unidirectional linear translation and the like caused by a rear matched conventional track laying translation method;
2. the invention has simple and practical structure, convenient assembly and disassembly, simple construction process, controllable operation process, repeatable use, time and labor saving and cost saving, improves the economic benefit and the safety of the translation technology of the supporting equipment after the shield construction, and can be widely applied to similar engineering construction.
Drawings
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:
fig. 1 is a front view of a rotary translation lifting trolley of the rear corollary equipment of the shield machine in a limited space.
Fig. 2 is a left side view of the rotary translation lifting trolley for the rear corollary equipment of the shield machine in the limited space.
Fig. 3 is a top view of the rotary translation lifting trolley for the rear corollary equipment of the shield machine in the limited space.
FIG. 4 is a schematic view of the connection between the hydraulic jack and the section steel frame bolt.
Figure 5 is a schematic view of the support post of the present invention.
FIG. 6 is a schematic view of the bolted connection of the caster to the lower frame of the present invention.
Fig. 7 is a schematic view of the fixed connection splint of the present invention.
Fig. 8 is a schematic view of the rotation and translation of the rear accessory device according to the present invention.
In the figure: 11-rear corollary equipment, 12-frequency conversion locomotive, 13-walking steel rail, 21-upper frame, 22-lower frame, 23-hydraulic jack, 231-bolt connecting steel plate, 24-support column, 241-outer sleeve steel pipe, 242-embedded steel pipe, 243-bolt, 31-universal wheel, 311-universal wheel connecting plate, 312-base, 313-high-strength bolt, 41-fixed connecting clamping plate, 42-clamping plate high-strength bolt, 51-embedded part and 52-electric hoist.
Detailed Description
As shown in fig. 1 to 3, the rotational translation lifting trolley for the rear corollary equipment of the shield machine in the limited space comprises a front view, a left side view and a top view, and comprises a rear corollary equipment moving system, a profile steel frame system and a universal wheel assembly, wherein the rear corollary equipment moving system comprises a variable frequency locomotive 12 and a walking steel rail 13, the rear corollary equipment 11 is pulled to the translation trolley by the variable frequency locomotive 12, the profile steel frame system comprises a hydraulic jacking system and a profile steel frame structure, so that the lifting function of the translation trolley is realized, and the universal wheel assembly is arranged at a reinforcing node of the profile steel frame system, so that the rotational and translational functions of the translation trolley are realized.
The rear supporting equipment moving system comprises a variable frequency locomotive 12 and a traveling steel rail 13, the variable frequency locomotive 12 pulls the rear supporting equipment 11 to the translation trolley, the rear supporting equipment 11 is fixedly connected with the variable frequency locomotive 12 and driven to or away from the translation trolley through the traction of the variable frequency locomotive 12, the traveling steel rail 13 is composed of four rows of steel rails, two rows of steel rails on the outer side are traveling guide rails of the rear supporting equipment 11, two rows of steel rails on the inner side are traveling guide rails of the variable frequency locomotive 12 and are all fixed on the section steel frame system through steel rail pressing plates, and screw rods for fixing the traveling steel rails 13 are welded on the section steel frame system.
Shaped steel frame system includes hydraulic jacking system and shaped steel frame construction, realize the raising and lowering functions of translation dolly, hydraulic jacking system contains 8 self-locking hydraulic jack 23 of 10 tons, be equipped with one set of hydraulic power unit and carry out synchronous jacking, bolted connection steel sheet 231 has all been welded at hydraulic jack 23 base and piston rod top, as shown in fig. 4, be connected through bolt and shaped steel frame construction, hydraulic jack 23 is installed at the shaped steel frame construction node corresponding with universal wheel 31.
The profile steel frame structure is composed of an upper frame 21, supporting columns 24 and a lower frame 22, the upper frame 21 and the lower frame 22 are plane structures formed by longitudinally and transversely splicing profile steel, the upper frame and the lower frame are connected through the middle supporting column 24, the supporting column 24 is composed of an outer sleeve steel sleeve 241 and an embedded steel pipe 242, as shown in fig. 5, the supporting column 24 is respectively welded with the upper frame and the lower frame, the outer diameter of the embedded steel pipe 242 is smaller than the inner diameter of the outer sleeve steel pipe 241, bolt holes are formed in the outer sleeve steel sleeve 241 and the embedded steel pipe 242.
The structural steel frame structure is divided into two parts along the length direction, the size of the translation trolley is reduced, transportation and assembly are facilitated, bolt holes are formed in the end of the structural steel frame and the fixed connection clamping plates 41, the structural steel frame is connected with the clamping plates through the clamping plate high-strength bolts 42 to form a whole, and the fixed connection clamping plates 41 are structurally shown in fig. 7.
The universal wheel assembly is installed at the reinforcement node of shaped steel frame system, realizes the rotation of translation dolly, translation function, and the universal wheel assembly is 8 10 tons of full forged steel universal wheels 31, and the wheel face area radian reduces with ground area of contact, reduces frictional resistance, installs the below of hydraulic jack 23 in shaped steel frame system.
The universal wheel 31 can be welded or bolted to the base 312 of the lower frame 22 through the universal wheel connecting plate 311, the universal wheel connecting plate 311 is welded to the lower frame 22 by carbon dioxide arc welding, and the bolted connection is achieved by forming corresponding holes in the bottom plate 312 of the lower frame 22 and positioning and connecting the holes by using high-strength bolts 313 of 8.8 grade or above, as shown in fig. 6.
The device is applied by taking the second-stage project of a certain number of urban rail transit in Wuhan city as an example.
In the second-stage engineering construction process of a certain line of rail transit, two stations (respectively represented by a station A and a station B) are constructed by adopting a half-cover excavation method, a shield hoisting hole is reserved on the right line of the station, a section left line shield machine needs to be hoisted and lowered into a well from the right line of the large mileage end of the station A, translated to the left line, integrally jacked to a portal position, started, tunneled to the left line receiving well of the small mileage end of the station B, translated to the right line in the station and lifted out.
The clear length of the cross section of the initial well of the station A is 26.4m, the clear width of the transverse passage is 10.65m, and the height from the center of the portal to the bottom plate is 3990 mm; the clear length of the section of the receiving well of the station B is 23.4m, the clear width of the transverse passage is 12.4m, and the height from the center of the portal to the bottom plate is 3840 mm.
The length of a shield machine host is 10.5m (including an erector), rear matched equipment comprises a screw conveyor 13m, an equipment bridge 12.8m, and a trolley 1-6 is 11-12.2 m in length, the translation space of an end well of an A station is narrow, the width requirement of transverse translation of the shield machine host is only met, the rear matched equipment cannot directly transversely translate, the rear matched equipment needs to be rotated for 90 degrees for two times to be connected to an inner track of the station after being horizontally translated to a left line after being lowered into the well on a right line, and U-shaped turning translation construction is needed; the height difference between the center of the tunnel door of the station B and the bottom plate of the station A is 15cm, the height requirements of the originating station and the receiving station on the translation device are different, the height of the translation device of the supporting equipment required by the station A is 1640mm, and the height required by the station B is 1490 mm.
Before the shield rear corollary equipment 11 is translated, the translation trolley is required to be assembled, the translation trolley is divided into two blocks, after a single block is assembled, the two blocks are combined by an upper fixed connecting splint 41, and the assembling process is as follows:
the method comprises the following steps: manufacturing the upper frame 21 and the lower frame 22, namely blanking, welding or prefabricating the upper frame 21 and the lower frame 22 on site according to the design size, then welding and fixing the outer sleeved steel pipe 241 at the design node of the upper frame 21, and welding and fixing the inner embedded steel pipe 242 at the design node of the lower frame 22;
step two: mounting the universal wheel 31, namely hoisting the lower frame 22 to a height corresponding to the mounting height of the universal wheel 31 by using a crane on the ground, and connecting a connecting plate 311 of the universal wheel 31 with a base 312 of the lower frame 22 through a high-strength bolt 313;
step three: the hydraulic jacks 23 are installed, the lower frame 22 and the universal wheels 31 are combined and then placed on the ground, the bolt connecting steel plates 231 of the four hydraulic jacks 23 are aligned with the reserved bolt holes of the lower frame 22, and the four hydraulic jacks are fixed through fastening bolts;
step four: combining the upper frame 21 and the lower frame 22, lifting the upper frame 21 by adopting a crane, aligning the positions of the outer casing steel 241 and the embedded steel pipe 242, slowly lowering the upper frame 21 by the crane, embedding the embedded steel pipe 242 into the outer casing steel pipe 241, completely withdrawing the oil cylinder of the hydraulic jack 23, aligning the bolt connecting steel plate 231 of the hydraulic jack 23 with the reserved bolt hole of the upper frame 21, fixing by fastening bolts, and assembling the single translation trolley;
step five: the two translation trolleys are respectively hung under the right line well, fixed through a fixed connection splint 41 by penetrating through a splint high-strength bolt 42, and after the two trolleys are fixed, the four traveling steel rails 13 are installed on the upper frame 21 and fixed on the upper frame 21 through a pressing plate;
step six: the adjustment of translation dolly height is 1640mm according to the required height of the translation dolly in A station, connects eight hydraulic jack 23 through hydraulic power unit, with the synchronous jacking of translation dolly to required height, then insert the bolt hole of reserving through bolt 243 fixed before overcoat steel pipe 241 and embedded steel pipe 242, translation dolly height adjustment accomplishes, then when the use of B station then adjusts translation dolly height to 1490mm through hydraulic jack 23 and support column 24.
According to the steps, the translation trolley is assembled, and the method can be used for rotation and translation construction of supporting equipment behind the shield. After establish 11 translation construction of supporting before, the steel sheet need be laid to the bottom plate in the pit, and universal wheel 31 and steel sheet contact require the steel sheet to lay the level as far as possible, reduce the required pulling force of translation, and the side wall need bury underground pre-buried 51 all around, and later stage is hung and is established electric block 52, provides rotatory, the power of translation for the 11 translations of back corollary equipment.
As shown in fig. 8, for example, when the station a starts to translate, after the translation trolley is assembled, the ground uses a crawler crane to hoist the rear corollary equipment 11 to the translation trolley, the rear corollary equipment 11 is placed on the translation trolley walking rail 13, the rear corollary equipment 11 can be limited by using iron shoes, the periphery of the rear corollary equipment 11 is fixed to the translation trolley, the fixing means can be locked by using a hoist, and the fixing means and the translation trolley form a whole, so that the situations of toppling, rollover and the like do not occur in the translation process.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (3)
1. The utility model provides a rotary translation lift dolly that is used for shield structure machine back corollary equipment in finite space, includes back corollary equipment moving system, shaped steel frame system and universal wheel subassembly, its characterized in that:
the rear supporting equipment moving system comprises a variable frequency locomotive (12) and a traveling steel rail (13), the variable frequency locomotive (12) pulls the rear supporting equipment (11) to the translation trolley, the rear supporting equipment (11) is fixedly connected with the variable frequency locomotive (12), the rear supporting equipment is driven to or departs from the translation trolley through the traction of the variable frequency locomotive (12), the traveling steel rail (13) consists of four rows of steel rails, the two rows of steel rails on the outer side are traveling guide rails of the rear supporting equipment (11), the two rows of steel rails on the inner side are traveling guide rails of the variable frequency locomotive (12), the two rows of steel rails are fixed on a section steel frame system through steel rail pressing plates, and screws for fixing the traveling steel rail (13) are welded on the section steel frame system;
the section steel frame system comprises a hydraulic jacking system and a section steel frame structure, the lifting function of the translation trolley is realized, the hydraulic jacking system comprises 8 10-ton self-locking hydraulic jacks (23), one set of hydraulic pump station is equipped for synchronous jacking, bolt connecting steel plates (231) are welded on the bases of the hydraulic jacks (23) and the tops of piston rods, the hydraulic jacks are connected with the section steel frame structure through bolts, the hydraulic jacks (23) are installed at the nodes of the section steel frame structure corresponding to universal wheels (31), the section steel frame structure comprises an upper frame (21), supporting columns (24) and a lower frame (22), the upper frame (21) and the lower frame (22) are plane structures formed by longitudinally and transversely splicing section steel, the upper frame and the lower frame are connected through the supporting columns (24) in the middle, and the supporting columns (24) are composed of outer sleeve steel sleeves (241) and embedded steel pipes (242), the supporting column (24) is respectively welded with the upper frame and the lower frame, the outer diameter of the embedded steel pipe (242) is smaller than the inner diameter of the outer sleeve steel pipe (241), bolt holes are formed in the outer sleeve steel sleeve (241) and the embedded steel pipe (242), bolt bolts (243) penetrate through the bolt holes to be fixed, and the height of the supporting column (24) is manually adjusted;
the universal wheel assembly is installed at a reinforced node of the profile steel frame system to realize the rotation and translation functions of the translation trolley, is 8 10-ton fully-forged steel universal wheels (31), has radian on the wheel surface, reduces the contact area with the ground and the frictional resistance, and is installed below a hydraulic jack (23) in the profile steel frame system.
2. The rotary translation lifting trolley for the rear corollary equipment of the shield tunneling machine in the limited space according to claim 1, is characterized in that: the structural steel frame structure is divided into two parts along the length direction, the size of the translation trolley is reduced, transportation and assembly are facilitated, bolt holes are formed in the end of the structural steel frame and the fixed connection clamping plate (41), and the structural steel frame structure is connected with the clamping plate through high-strength bolts (42) to form a whole.
3. The rotary translation lifting trolley for the rear corollary equipment of the shield tunneling machine in the limited space according to claim 1, is characterized in that: the universal wheel (31) can be welded or bolted with the base (312) of the lower frame (22) through a universal wheel connecting plate (311), the universal wheel connecting plate (311) and the lower frame (22) are welded by carbon dioxide arc welding, corresponding hole positions are arranged on the bottom plate (312) of the lower frame (22) in the bolted connection mode, and 8.8-grade and above high-strength bolts (313) are used for positioning and connecting.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911314204.1A CN111022063B (en) | 2019-12-19 | 2019-12-19 | Rotary translation lifting trolley for shield tunneling machine rear supporting equipment in limited space |
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| CN201911314204.1A CN111022063B (en) | 2019-12-19 | 2019-12-19 | Rotary translation lifting trolley for shield tunneling machine rear supporting equipment in limited space |
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| CN107829751A (en) * | 2017-10-24 | 2018-03-23 | 中铁十六局集团北京轨道交通工程建设有限公司 | A kind of supporting trolley device of shield machine for handling the interim dangerous situation of shield-tunneling construction |
| CN109899074A (en) * | 2019-02-02 | 2019-06-18 | 中国电建集团铁路建设有限公司 | A kind of sliding steel bushing shield machine, which integrally misses the stop, secondary originates construction method |
| CN211549691U (en) * | 2019-12-19 | 2020-09-22 | 中建三局基础设施建设投资有限公司 | Rotary translation lifting trolley for shield machine matching equipment in limited space |
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