CN111608672A - Disassembly shield machine suitable for limited space and assembling method thereof - Google Patents
Disassembly shield machine suitable for limited space and assembling method thereof Download PDFInfo
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- CN111608672A CN111608672A CN201910133269.XA CN201910133269A CN111608672A CN 111608672 A CN111608672 A CN 111608672A CN 201910133269 A CN201910133269 A CN 201910133269A CN 111608672 A CN111608672 A CN 111608672A
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 230000005641 tunneling Effects 0.000 claims description 13
- 239000000725 suspension Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 17
- 238000009434 installation Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 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
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
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- Mining & Mineral Resources (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention provides a disassembly shield machine suitable for a limited space and an assembling method thereof. The disassembly shield machine comprises a cutter head module, a front shield module spliced with the cutter head module, a driving module spliced with the front shield module, a middle shield module spliced with the front shield module, a hinge ring and a tail shield module spliced with the middle shield module, an assembling machine spliced with the shield tail module, and a thrust oil cylinder. The assembly method is to transport the modules to the originating well individually for assembly. The disassembly shield machine suitable for the limited space and the assembly method thereof successfully solve the technical problems of disassembly and assembly of the shield machine in the limited space environment aiming at the construction characteristics of shield station passing in the limited space environment, verify the applicability and reliability of the shield machine in the limited space environment in the disassembly and assembly and strengthen the universality and sustainability of the shield method construction process application.
Description
Technical Field
The invention relates to rail transit construction, in particular to a disassembly shield tunneling machine suitable for a limited space and an assembly method thereof.
Background
With the development of Chinese economy, the urban rail transit industry is stepping into a high-speed development period. The concept of rail transit construction is changed from single line planning to urban rail transit network construction, and particularly for a first-line city, the rail transit network is complex and intricate. Therefore, shield starting and receiving wells are reserved during the construction of some transfer stations so as to facilitate later line construction.
And the station planned and reserved in early stage in the city is still designed with a shield station-passing channel according to the diameter of the original tunnel, and the existing and future shield station-passing requirements cannot be met. In order to integrally feed the shield machine into the shield construction area, the shield launching only opens the top plate of the starting well, but the top plate of the starting well does not have a reopening condition in some special areas. Therefore, a novel and reliable construction technology is required to solve the construction problem of shield station crossing in a limited space.
The shield station-crossing refers to a construction process that a shield machine passes through a station under the condition that the main structure of the station is finished and enters a next shield construction section from a previous shield construction area of the station for construction. The shield station-crossing is suitable for a shorter station structure, the disassembly and the installation of the shield machine are more complicated, and the workload of the shield for entering and leaving the station for multiple times can be reduced by the underground station-crossing; due to traffic needs, a shield machine receiving wellhead or an originating wellhead cover plate is constructed firstly, so that the shield machine cannot be hoisted to the well and the like. In the past, when the shield passes through the station, the net width of the main structure of the station is slightly larger than the diameter of the shield machine, and the shield machine can pass through the station integrally. However, in some special cases, the clear width of the station structure cannot meet the integral station passing requirement of the shield, and the originating wellhead of the shield does not have the well descending condition.
Disclosure of Invention
The invention aims to overcome the defect that the clear width of the existing station main body structure in the prior art cannot meet the requirement of the whole station passing of a shield machine, and provides a disassembly shield machine suitable for a limited space and an assembly method thereof.
The invention solves the technical problems through the following technical scheme:
a disassembly shield machine suitable for a limited space is characterized by comprising a cutter head module, a front shield module spliced with the cutter head module, a driving module spliced with the front shield module, a middle shield module spliced with the front shield module, a hinged ring and a tail shield module spliced with the middle shield module, an assembling machine spliced with the shield tail module and a thrust oil cylinder.
The anterior shield module comprises a semi-annular anterior shield upper part and a semi-annular anterior shield lower part matched with the semi-annular anterior shield upper part.
The middle shield module comprises a semi-annular middle shield upper part and a semi-annular middle shield lower part matched with the semi-annular middle shield upper part.
The shield tail module comprises a semi-annular shield tail upper part and a semi-annular shield tail lower part matched with the semi-annular shield tail upper part.
Wherein, the driving module is also provided with a plurality of driving motors.
The shield machine further comprises a screw machine, a rounding device, an operation platform and a plurality of trolleys.
The invention also provides a disassembly shield tunneling machine assembling method which is characterized in that the disassembly shield tunneling machine for the limited space adopts any one of the shield tunneling machines, and comprises the following steps:
step S0: cutting off a floor slab of the structural station hall, sequentially laying a steel structure working platform, a station crossing track and a support frame in the starting well, and erecting a bridge crane;
step S1: the cutter head module is transported to an originating well of a structure station hall, and the cutter head is vertically fixed on the support frame through a ring chain after reaching the front end of the originating well;
step S2: transporting the lower part of the front shield module into an initial well, hoisting the lower part of the front end by the bridge until the lower part is 200 cm away from the support frame, rotating the annular central axis of the lower part of the front shield by 90 degrees, and placing the lower part of the front shield on the cutter head module and the support frame;
step S3: transporting a driving module to the starting well, and hoisting the driving module on the lower part of the front shield by the bridge crane;
step S4: transporting a drive motor to be installed toThe driving motor is gradually installed on the driving module from bottom to top in the starting well by the bridge crane;
step S5: transporting the upper part of the front shield to a starting well, rotating the upper part of the front shield by 90 degrees around a semi-annular central axis by the bridge crane, and then hoisting the upper part of the front shield to the lower part of the front shield;
step S6: longitudinally conveying the lower part of the middle shield into the starting well, and rotating the lower part of the middle shield by 90 degrees around a semi-annular central axis by the bridge crane;
step S7: longitudinally conveying the upper part of the middle shield into the starting well, rotating by 90 degrees after reaching the starting well, and welding the upper part of the middle shield, the lower part of the front shield and the lower part of the middle shield in the steps;
step S8: hoisting the cutter head module by using a bridge crane again, and then removing the bracket and the ring chain;
step S9: the cutter head module is translated backwards until the cutter head module is close to the front shield module, and the cutter head module is fixedly connected with the front shield module to form a shield annular integral structure;
step S10: the shield annular integral structure is moved forwards by a jack;
step S11: conveying the hinged ring to a starting well and welding the hinged ring with the upper part and the lower part of the middle shield in the middle shield module;
step S12: dismantling the steel structure working platform close to the middle shield module, and moving the station-passing track;
step S13: transporting the lower part of the tail shield to an originating well by utilizing a heavy chain block suspension and the bridge crane, rotating the lower part of the tail shield by 90 degrees and hoisting the lower part of the tail shield in place by matching the heavy chain block suspension and the bridge crane, and installing rollers of the erector at the same time;
step S14: the heavy chain block is used for hanging and transporting the propulsion oil cylinder by the bridge crane and the propulsion oil cylinder is installed;
step S15: transporting the erector to the originating well and performing step S14The rollers of the assembling machine are connected;
step S16: shield the tailThe upper part is transported to a starting well, rotated by 90 degrees through a bridge crane and then temporarily placed on the upper part of the anterior shield;
step S17: the heavy chain block is used for hanging and the bridge crane transportation screw machine for installation;
step S18: transporting the rear operation platform into the starting well, and hoisting the rear operation platform through the bridge crane;
step S19: transporting the rounding machine to a starting well, and hoisting the rounding machine through the bridge crane;
step S20: moving the upper part of the tail shield positioned at the upper part of the front shield to the upper part of the lower part of the tail shield through the bridge crane, and installing;
step S21: and transporting the trolleys one by one to the originating well, installing the trolleys and finally forming the shield machine for the limited space.
Wherein, step S0The method comprises the steps of manufacturing a beam steel frame by using I-steel for a starting well of a structural station hall, forming four hoisting holes with the diameter of 100mm on a beam plate outside a bridge crane, and arranging two 20t heavy chain blocks below the beam steel frame for hanging, wherein the hanging running direction of the heavy chain blocks is consistent with that of the bridge crane.
Wherein, step S7The method also comprises the step of grinding and polishing the centering shield.
In the present invention, the above-mentioned preferred conditions can be arbitrarily combined on the basis of common knowledge in the field, so as to obtain each preferred embodiment of the present invention.
The positive progress effects of the invention are as follows: the disassembly shield machine suitable for the limited space and the assembly method thereof provided by the invention successfully solve the technical problems of disassembly and assembly of the shield machine in the limited space environment by aiming at the construction characteristics of shield station passing in the limited space environment and through the construction process of disassembly and assembly of the disassembly shield machine, thereby proving the applicability and reliability of the shield station passing in the limited space environment, and enhancing the universality and sustainability of the shield method construction process application.
Drawings
Fig. 1 is a schematic illustration of a cutterhead adapted for a confined space, disassembled shield tunneling machine, transported to an originating well in an embodiment of the present invention.
Fig. 2 is a sectional view a-a of fig. 1.
Fig. 3 is a schematic view of the lower portion of the anterior shield being transported to the originating well and installed.
FIG. 4 is a schematic illustration of the drive motor being transported to the originating well and installed.
Fig. 5 is a schematic view of the upper portion of the anterior shield being transported to the originating well and installed.
Fig. 6 is a schematic view of the lower portion of the center shield being transported to the originating well and installed.
Fig. 7 is a schematic view of the upper portion of the center shield being transported to the originating well and installed.
Fig. 8 is a schematic view of the assembled partially disassembled shield tunneling machine after the whole machine is moved forward.
Figure 9 is a schematic illustration of the articulated loop being transported to the originating well and installed.
Fig. 10 is a schematic view of the structure of the lower portion of the tail shield being transported to the originating well and installed.
Figure 11 is a schematic illustration of a thrust cylinder being transported to a launch well and installed.
FIG. 12 is a schematic illustration of the erector being transported to the originating well and installed.
Fig. 13 is a schematic view of the installation of the upper part and the lower part of the shield tail.
Fig. 14 is a schematic view of the work platform and trolley installation.
Detailed Description
The present invention will be more clearly and completely described in the following description of preferred embodiments, taken in conjunction with the accompanying drawings.
As shown in fig. 1 to 14, the disassembly shield machine suitable for limited space in this embodiment comprises a cutter head module 1, a front shield module 2 spliceable with the cutter head module 1, a driving module 3 spliceable with the front shield module 2, a middle shield module 4 spliceable with the front shield module 2, a hinge ring 43 spliceable with the middle shield module 4 and a tail shield module 5, an assembling machine 6 spliceable with the tail shield module 5 and a thrust cylinder 7.
Wherein, the anterior shield module 2 comprises a semi-annular anterior shield upper part 21 and a semi-annular anterior shield lower part 22 matched with the semi-annular anterior shield upper part 21. The middle shield module 4 includes a semi-annular middle shield upper portion 41 and a semi-annular middle shield lower portion 42 matching the semi-annular middle shield upper portion 41. The shield tail module 5 comprises a semi-annular shield tail upper part 51 and a semi-annular shield tail lower part 52 matched with the semi-annular shield tail upper part 51. The driving module is also provided with a plurality of driving motors 3. In addition, the shield machine also comprises a screw machine 8, a rounder 9, a working platform 100 and a plurality of trolleys 101.
The method for constructing the shield tunneling machine in the limited space in the embodiment is described with reference to fig. 1 to 14, and includes the following steps:
step S0: and (4) cutting off a floor slab of the structural station hall, sequentially laying a steel structure working platform, a station crossing track and a support frame in the starting well, and erecting a bridge crane. Step S0The method also comprises the steps of manufacturing a beam steel frame by using I-steel for a starting well of the structure station hall, forming four hoisting holes with the diameter of 100mm on a beam plate outside the bridge crane, and arranging two 20t heavy chain blocks below the beam steel frame for hanging, wherein the running direction of the heavy chain blocks is consistent with that of the bridge crane.
Step S1: the cutter head module is transported to an originating well of a structure station hall, and the cutter head is vertically fixed on the support frame through a ring chain after reaching the front end of the originating well;
step S2: transporting the lower part of the front shield module into an initial well, hoisting the lower part of the front end by the bridge until the lower part is 200 cm away from the support frame, rotating the annular central axis of the lower part of the front shield by 90 degrees, and placing the lower part of the front shield on the cutter head module and the support frame;
step S3: transporting a driving module to the starting well, and hoisting the driving module on the lower part of the front shield by the bridge crane;
step S4: transporting a driving motor to be installed into the starting well, and gradually installing the driving motor on the driving module from bottom to top by the bridge crane;
step S5: transporting the upper part of the front shield to a starting well, rotating the upper part of the front shield by 90 degrees around a semi-annular central axis by the bridge crane, and then hoisting the upper part of the front shield to the lower part of the front shield;
step S6: longitudinally conveying the lower part of the middle shield into the starting well, and rotating the lower part of the middle shield by 90 degrees around a semi-annular central axis by the bridge crane;
step S7: longitudinally conveying the upper part of the middle shield into the starting well, rotating by 90 degrees after reaching the starting well, and welding the upper part of the middle shield, the lower part of the front shield and the lower part of the middle shield in the steps; step S7The method also comprises the step of grinding and polishing the centering shield.
Step S8: hoisting the cutter head module by using a bridge crane again, and then removing the bracket and the ring chain;
step S9: the cutter head module is translated backwards until the cutter head module is close to the front shield module, and the cutter head module is fixedly connected with the front shield module to form a shield annular integral structure;
step S10: as shown in fig. 8, the shield annular monolithic structure is moved forward by a jack;
step S11: conveying the hinged ring to a starting well and welding the hinged ring with the upper part and the lower part of the middle shield in the middle shield module;
step S12: dismantling the steel structure working platform close to the middle shield module, and moving the station-passing track;
step S13: transporting the lower part of the tail shield to an originating well by utilizing a heavy chain block suspension and the bridge crane, rotating the lower part of the tail shield by 90 degrees and hoisting the lower part of the tail shield in place by matching the heavy chain block suspension and the bridge crane, and installing rollers of the erector at the same time;
step S14: the heavy chain block is used for hanging and transporting the propulsion oil cylinder by the bridge crane and the propulsion oil cylinder is installed;
step S15: transporting the erector to the originating well and performing step S14The rollers of the assembling machine are connected;
step S16: transporting the upper part of the tail shield to an originating well, rotating by 90 degrees through a bridge crane, and temporarily placing the tail shield on the upper part of the front shield;
step S17: the heavy chain block is used for hanging and the bridge crane is used for transporting the screw conveyorInstalling the line;
step S18: transporting the rear operation platform into the starting well, and hoisting the rear operation platform through the bridge crane;
step S19: transporting the rounding machine to a starting well, and hoisting the rounding machine through the bridge crane;
step S20: moving the upper part of the tail shield positioned at the upper part of the front shield to the upper part of the lower part of the tail shield through the bridge crane, and installing;
step S21: and transporting the trolleys one by one to the originating well, installing the trolleys and finally forming the shield machine for the limited space.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (9)
1. A disassembly shield machine suitable for a limited space is characterized by comprising a cutter head module, a front shield module spliced with the cutter head module, a driving module spliced with the front shield module, a middle shield module spliced with the front shield module, a hinged ring and a tail shield module spliced with the middle shield module, an assembling machine spliced with the shield tail module and a thrust oil cylinder.
2. A split shield tunneling machine for confined spaces according to claim 1, wherein said anterior shield module comprises an upper semi-annular anterior shield portion and a lower semi-annular anterior shield portion matching said upper semi-annular anterior shield portion.
3. A split shield tunneling machine for confined spaces according to claim 2, wherein said middle shield module comprises a semi-annular middle shield upper portion and a semi-annular middle shield lower portion matching with said semi-annular middle shield upper portion.
4. A shield tunneling machine for confined spaces according to claim 3, wherein said tail module comprises an upper semi-annular tail portion and a lower semi-annular tail portion matching said upper semi-annular tail portion.
5. A shield tunneling machine for confined spaces as claimed in claim 3, characterized in that the drive module is also provided with a plurality of drive motors.
6. A shield tunneling machine for confined spaces as claimed in claim 5, characterized by further comprising a screw machine, a rounder and a working platform and several trolleys.
7. A method for assembling a shield tunneling machine for a limited space according to any one of the preceding claims, comprising the steps of:
step S0: cutting off a floor slab of the structural station hall, sequentially laying a steel structure working platform, a station crossing track and a support frame in the starting well, and erecting a bridge crane;
step S1: the cutter head module is transported to an originating well of a structure station hall, and the cutter head is vertically fixed on the support frame through a ring chain after reaching the front end of the originating well;
step S2: transporting the lower part of the front shield module into an initial well, hoisting the lower part of the front end by the bridge until the lower part is 200 cm away from the support frame, rotating the annular central axis of the lower part of the front shield by 90 degrees, and placing the lower part of the front shield on the cutter head module and the support frame;
step S3: transporting a driving module to the starting well, and hoisting the driving module on the lower part of the front shield by the bridge crane;
step S4: transporting a driving motor to be installed into the starting well, and gradually installing the driving motor on the driving module from bottom to top by the bridge crane;
step S5: the anterior shieldThe upper part is transported to a starting well, and the upper part of the anterior shield is rotated by 90 degrees around a semi-annular central axis by the bridge crane and then is hung on the lower part of the anterior shield;
step S6: longitudinally conveying the lower part of the middle shield into the starting well, and rotating the lower part of the middle shield by 90 degrees around a semi-annular central axis by the bridge crane;
step S7: longitudinally conveying the upper part of the middle shield into the starting well, rotating by 90 degrees after reaching the starting well, and welding the upper part of the middle shield, the lower part of the front shield and the lower part of the middle shield in the steps;
step S8: hoisting the cutter head module by using a bridge crane again, and then removing the bracket and the ring chain;
step S9: the cutter head module is translated backwards until the cutter head module is close to the front shield module, and the cutter head module is fixedly connected with the front shield module to form a shield annular integral structure;
step S10: the shield annular integral structure is moved forwards by a jack;
step S11: conveying the hinged ring to a starting well and welding the hinged ring with the upper part and the lower part of the middle shield in the middle shield module;
step S12: dismantling the steel structure working platform close to the middle shield module, and moving the station-passing track;
step S13: transporting the lower part of the tail shield to an originating well by utilizing a heavy chain block suspension and the bridge crane, rotating the lower part of the tail shield by 90 degrees and hoisting the lower part of the tail shield in place by matching the heavy chain block suspension and the bridge crane, and installing rollers of the erector at the same time;
step S14: the heavy chain block is used for hanging and transporting the propulsion oil cylinder by the bridge crane and the propulsion oil cylinder is installed;
step S15: transporting the erector to the originating well and performing step S14The rollers of the assembling machine are connected;
step S16: transporting the upper part of the tail shield to an originating well, rotating by 90 degrees through a bridge crane, and temporarily placing the tail shield on the upper part of the front shield;
step S17: the heavy chain block is used for hanging and the bridge craneTransporting and installing the screw machine;
step S18: transporting the rear operation platform into the starting well, and hoisting the rear operation platform through the bridge crane;
step S19: transporting the rounding machine to a starting well, and hoisting the rounding machine through the bridge crane;
step S20: moving the upper part of the tail shield positioned at the upper part of the front shield to the upper part of the lower part of the tail shield through the bridge crane, and installing;
step S21: and transporting the trolleys one by one to the originating well, installing the trolleys and finally forming the shield machine for the limited space.
8. The disassembly shield machine assembly method of claim 7, wherein step S0The method comprises the steps of manufacturing a beam steel frame by using I-steel for a starting well of a structural station hall, forming four hoisting holes with the diameter of 100mm on a beam plate outside a bridge crane, and arranging two 20t heavy chain blocks below the beam steel frame for hanging, wherein the hanging running direction of the heavy chain blocks is consistent with that of the bridge crane.
9. The disassembly shield machine assembly method of claim 8, wherein step S7The method also comprises the step of grinding and polishing the centering shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910133269.XA CN111608672A (en) | 2019-02-22 | 2019-02-22 | Disassembly shield machine suitable for limited space and assembling method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910133269.XA CN111608672A (en) | 2019-02-22 | 2019-02-22 | Disassembly shield machine suitable for limited space and assembling method thereof |
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| CN111608672A true CN111608672A (en) | 2020-09-01 |
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| CN201910133269.XA Pending CN111608672A (en) | 2019-02-22 | 2019-02-22 | Disassembly shield machine suitable for limited space and assembling method thereof |
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Cited By (2)
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| CN113279764A (en) * | 2021-03-30 | 2021-08-20 | 中铁二十局集团第四工程有限公司 | Construction method for split translation of complex steel sleeve and shield tunneling machine |
| CN114109415A (en) * | 2021-11-30 | 2022-03-01 | 新疆额尔齐斯河流域开发工程建设管理局 | Construction method for disassembling tunnel of shield machine of non-expanding excavation chamber |
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Cited By (2)
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| CN113279764A (en) * | 2021-03-30 | 2021-08-20 | 中铁二十局集团第四工程有限公司 | Construction method for split translation of complex steel sleeve and shield tunneling machine |
| CN114109415A (en) * | 2021-11-30 | 2022-03-01 | 新疆额尔齐斯河流域开发工程建设管理局 | Construction method for disassembling tunnel of shield machine of non-expanding excavation chamber |
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