CN210530855U - External tube sheet type assembling device and open shield machine - Google Patents
External tube sheet type assembling device and open shield machine Download PDFInfo
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- CN210530855U CN210530855U CN201920876025.6U CN201920876025U CN210530855U CN 210530855 U CN210530855 U CN 210530855U CN 201920876025 U CN201920876025 U CN 201920876025U CN 210530855 U CN210530855 U CN 210530855U
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Abstract
The utility model belongs to the technical field of shield constructs quick-witted manufacturing. The utility model provides an external tube sheet formula assembly device, includes the segment erector, the segment erector sets up in the shield body front end outside of uncovered shield structure machine. An external pipe sheet type open shield machine comprises a shield body, an external pipe sheet type assembling device, excavating equipment and conveying equipment; excavating equipment is arranged at the front part of the shield body; the material conveying equipment is arranged in the shield body. The application also discloses a tunnel construction method. The method has very important significance for enriching tunnel construction technology and construction method. The method is different from an earth pressure balance type shield tunneling machine, a slurry shield tunneling machine, an open type TBM, a shield type TBM, a cantilever type tunneling machine and the like, enriches the classification of the tunnel tunneling machine, and fills a blank of construction equipment under special geological conditions. Meanwhile, tunnel construction methods are enriched, more choices are provided for tunnel construction, the construction progress can be controlled, and the construction cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of shield constructs quick-witted manufacturing, concretely relates to device and uncovered shield constructs machine are assembled to external tube sheet formula.
Background
A shield machine is a tunnel boring machine using a shield method. The shield construction method is a method in which a "shield" (a supporting segment) of a tunnel is constructed while a heading machine is heading.
The shield machine has the characteristics of high automation degree, labor saving, high construction speed, one-time tunneling, no influence of weather, controllable ground settlement during excavation, reduction of influence on ground buildings, no influence on ground traffic during underwater excavation and the like when the shield machine is used for tunnel construction, and the shield machine is more economical and reasonable in construction under the conditions of longer tunnel line and larger buried depth.
At present, the structural form of the shield tunneling machine is completely built in a duct piece, the assembly of the duct piece is carried out under the protection of a shield shell, the duct piece assembly operation area is far away from a tunnel excavation surface, when the shield tunneling machine is in a soft rock large deformation geological condition, the problems of shield body blocking and duct piece deformation tearing are easily caused due to soil body collapse, the deformation of the inner wall of the excavated and formed tunnel is caused, secondary operation or even repeated operation is required, and the construction speed is extremely low. And the equipment structure is complicated, the early preparation working time is long, the equipment maintenance, the daily consumption and the equipment transition cost are high.
Disclosure of Invention
The utility model aims at the problem that above-mentioned exists with not enough, provide a device and uncovered shield structure machine are assembled to external tube sheet formula, its structural design is reasonable, has broken the structural constraint of conventional shield structure machine, has richened tunnel construction technique and construction merit method, has great meaning to filling the construction under the special geological conditions.
In order to achieve the purpose, the adopted technical scheme is as follows:
the utility model provides an external tube sheet formula assembly device, includes the segment erector, the segment erector sets up outside the shield body front end of uncovered shield structure machine to a hole wall after excavating carries out the segment assembly.
According to the utility model discloses device is assembled to external section of jurisdiction formula, preferably, the section of jurisdiction erector with be provided with adjusting part between the shield body, adjusting part control section of jurisdiction erector sideslip action and/or the rotation in a circumferential direction action.
According to the utility model discloses device is assembled to external tube sheet formula, preferably, adjusting part includes: an axial expansion bracket; the rotating disc is rotatably arranged on the axial telescopic frame, and the segment erector is supported on the rotating disc; the segment erector and the rotary disc are fixedly arranged, or a radial push rod is arranged between the segment erector and the rotary disc.
According to the external pipe piece type splicing device of the utility model, preferably, the front part of the pipe piece splicing machine is provided with a supporting component; under the operation state that the section of jurisdiction was assembled, the supporting component props up ground.
According to the utility model discloses device is assembled to external section of jurisdiction formula, preferably, shield body front portion is provided with finger type shield, the outline suits in outline and the section of jurisdiction lining cutting after assembling of finger type shield.
An open shield of external tube sheet formula constructs machine, includes: a shield body; the external pipe sheet type assembling device is arranged outside the front end of the shield body; the excavating equipment is arranged at the front part of the shield body and is used for excavating a tunnel face; and the material conveying equipment is arranged in the shield body and used for transporting the muck.
According to the utility model discloses uncovered shield of external tube sheet formula machine, preferably, shield body rear portion still is provided with back corollary equipment.
According to the utility model discloses uncovered shield of external tube sheet formula machine, preferably, shield body bottom is provided with walking supporting component, walking supporting component is for setting up the walking wheel of shield body bottom is provided with the walking track that corresponds with the walking wheel on the section of jurisdiction after assembling.
According to the external tube sheet type open shield machine of the utility model, preferably, the material conveying equipment comprises a scraper chain conveyor and a belt conveyor which are arranged in a front-back butt joint manner, and the scraper chain conveyor can move back and forth in the shield body; the shield body inner chamber is two layer construction at least, excavating equipment includes: the spiral drilling machine is arranged in one layer of the shield body and can perform telescopic tunneling action; and a plurality of shoveling machines which are arranged in each layer of the shield body and operate independently.
By adopting the technical scheme, the beneficial effects are as follows:
the application has reasonable design of the whole structure, and the segment external open shield machine has very important significance for enriching the tunnel construction technology and the construction method. The method is different from an earth pressure balance type shield tunneling machine, a slurry shield tunneling machine, an open type TBM, a shield type TBM, a cantilever type tunneling machine and the like, enriches the classification of the tunnel tunneling machine, and fills a blank of construction equipment under special geological conditions. Meanwhile, tunnel construction methods are enriched, more choices are provided for tunnel construction, the construction progress can be controlled, and the construction cost is reduced.
The external tube sheet type assembling device is changed by setting the position, so that the steps of conventional shield machine construction are changed essentially, and construction under some special geological conditions can make a breakthrough progress. This application is to the setting of adjusting part, supporting component and finger type shield, can be convenient for carry out effectual construction after leading, external of section of jurisdiction erector, has ensured holistic stability simultaneously, is convenient for operate the construction operation.
The utility model provides an external uncovered shield of section of jurisdiction formula constructs machine for it can be adapted to new construction method through the new design of overall arrangement form, more tends to stably in whole work progress, especially under the special geological conditions, can ensure the stability and the efficiency of construction, avoids the shield body card to die or section of jurisdiction warp the emergence of tearing the scheduling problem.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly described below. The drawings are intended to depict only some embodiments of the invention, and not all embodiments of the invention are limited thereto.
Fig. 1 is according to the utility model discloses the open shield of external tube sheet formula constructs the schematic diagram.
Fig. 2 is a schematic top view of the structure of fig. 1.
Fig. 3 is a right-view structural diagram of fig. 1.
Number in the figure:
100 is a segment erector;
200 is an adjusting component;
300 is a support assembly;
400 is a finger shield;
500 is a shield body, 501 is a walking wheel and 502 is a walking track;
601 is a shovel excavator, 602 is a spiral drilling machine;
701 is a scraper chain conveyor, 702 is a belt conveyor;
800 is a rear corollary device.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments.
Referring to fig. 1-3, the external tube sheet type splicing device of the present invention comprises a tube sheet splicing machine 100, wherein the tube sheet splicing machine 100 is arranged outside the front end of a shield body 500 of an open shield machine and is used for splicing the tube sheets of the excavated tunnel wall; an adjusting component 200 is arranged between the segment erector 100 and the shield 500 in the embodiment, the adjusting component 200 controls the transverse movement and/or the circumferential rotation of the segment erector 100, and the specific segment erector 100 can perform axial telescopic movement, radial transverse movement and circumferential rotation under the control of the adjusting component, so as to cooperate with other devices, improve the flexibility of products and avoid the occurrence of action interference among components.
In the embodiment, one of the adjusting assemblies is provided, and the adjusting assembly 200 comprises an axial telescopic frame and a rotary disc, wherein the rotary disc is rotatably arranged on the axial telescopic frame, and the segment erector 100 is supported on the rotary disc; segment erector 100 with the fixed setting of gyration dish, or segment erector 100 with be provided with radial push rod between the gyration dish, the axial expansion bracket can drive the axis direction flexible action of gyration dish and segment erector along the tunnel this moment to adjust the position of assembling of section of jurisdiction, through the rotatory action of gyration dish for the axial expansion bracket, can drive segment erector and be circumferential motion along the axis in tunnel, rotation angle in this embodiment is 200, radial push rod's setting can make segment erector switch under the operating condition of difference, if snatch and the switching under the state of assembling, or switching under operating condition and the unoperated state. The adjusting assembly can be further optimized and improved according to the consideration of factors in various aspects such as the specific structure of the segment erector, the arrangement form of excavating equipment in the shield body, the coordination of the construction method and the like.
The front part of the segment erector 100 is provided with a support assembly 300; under the operating condition that the section of jurisdiction was assembled, supporting component 300 shore ground, supporting component in this embodiment be telescopic support leg, and its purpose is the holistic stability when the operation is assembled to the section of jurisdiction, avoids taking place the condition of long-time cantilever operation, improves the life of security performance and equipment, and the smooth of operation is assembled to the guarantee section of jurisdiction goes on.
Due to the fact that the segment erector is arranged in the front, in order to guarantee supporting stability, the finger-shaped shield 400 is arranged on the front portion of the shield body, the outer contour of the finger-shaped shield 400 is matched with the inner contour of the segment lining after being assembled, and therefore the primary supporting effect can be achieved.
The embodiment also discloses an external pipe sheet type open shield machine, which comprises a shield body 500, the external pipe sheet type assembling device, excavating equipment and conveying equipment, wherein the external pipe sheet type assembling device is arranged outside the front end of the shield body 500; excavating equipment is arranged at the front part of the shield body 500 and is used for excavating a tunnel face; the material conveying equipment is arranged in the shield body 500 and used for conveying muck, and the rear part of the shield body 500 is also provided with rear corollary equipment 800 which is hinged with the shield body through a hinge mechanism.
In the working process, the shield body is required to walk on the assembled duct piece, so that the duct piece in the embodiment adopts a special structural form, namely the assembled duct piece positioned at the lower part is provided with a walking track 502, and the track laying efficiency of the tunnel at the later stage is improved by prefabricating a track platform; the traveling wheels 501 are arranged at the bottom of the shield body, so that the shield body 500 and the subsequent rear corollary equipment 800 can be supported and travel on the traveling rails 502.
The material conveying equipment in this embodiment comprises a scraper chain conveyor 701 and a belt conveyor 702 which are arranged in a front-back butt joint manner, and the scraper chain conveyor 701 can move back and forth in the shield body 500; the inner cavity of the shield body 500 is of at least two-layer structure, as shown in the figure, the shield body in the embodiment is arranged at the upper side and the lower side, the excavating equipment comprises a spiral drilling machine 602 and a shoveling and digging machine 601, the spiral drilling machine 602 is arranged in the upper layer of the shield body and can perform telescopic excavation action to perform advanced excavation and exploration; the shoveling machines 601 are arranged in the upper and lower layers of the shield body 500 and operate independently of each other, thereby performing end face excavation.
During tunnel construction, tunnel excavation is carried out by three shoveling and digging machines at first, and the muck under the excavation is carried the belt feeder at rear portion by the scraper chain of bottom and is discharged the slag, and excavation length satisfies when assembling of a ring section of jurisdiction, is assembled by the section of jurisdiction erector to carry out the section of jurisdiction. After the assembly is completed, the shield tunneling machine walks forwards through the walking wheels at the lower part, and after walking to a certain position, excavation is performed again.
The utility model discloses an uncovered shield of external tube sheet formula constructs machine, the section of jurisdiction is in the shield shell outside, utilizes leading section of jurisdiction erector can realize strutting fast behind excavation cave wall shaping to resist geological deformation, reduce the damaged risk of tunnel secondary deformation.
Compared with a conventional shield machine, the structure of the shield shell is greatly simplified, and can be quickly assembled when needed, so that the construction cost is greatly saved.
The utility model discloses an external uncovered shield of section of jurisdiction constructs machine is different from soil pressure balanced type shield structure machine, slurry shield structure machine, open-type TBM, shield formula TBM and cantilever type entry driving machine, has richened tunnel boring machine's classification, has filled a blank of construction equipment under the special geological conditions, has richened tunnel construction method simultaneously.
The external pipe sheet type open shield tunneling machine is utilized for tunnel construction, and the method specifically comprises the following steps:
carrying out tunnel excavation through the excavating equipment, and carrying out conveying of muck through the conveying equipment until a set distance section is excavated;
assembling the duct pieces by the external duct piece type assembling device, completing the assembling of the duct pieces of the set distance section, and performing initial supporting and filling;
driving the shield body to move on the assembled duct piece, and excavating and assembling the duct piece in the next set distance section;
reinforcing anchor cables for the duct pieces at the rear part of the external duct piece type open shield machine;
and after the hole wall is stable, performing secondary lining construction.
In the tunneling process, the length of the set distance section can be set by taking the excavating stroke of excavating equipment as a limit, or the width of a ring of pipe pieces or the width of a plurality of ring of pipe pieces as a limit, a deformation space is reserved between the pipe pieces and the hole wall, for the assembled pipe pieces, the counterforce after the hole wall is deformed is resisted between the pipe pieces and the hole wall in the modes of filling mortar, locally sticking foam boards and the like, and an elastic base plate is filled between the pipe pieces and the shield body so as to ensure that the shield body can freely move back and forth after the strength of the whole ring of the pipe pieces is enough; the outer diameter of the finger-shaped shield in the structure is larger than that of the shield body, and the finger-shaped shield can be a whole-ring shaped structure or a multi-section adjustable segmented structure.
The anchor cable holes can be reserved on the duct pieces, the anchor cable can be reinforced on the tunnel wall after the shield machine passes through the tunnel, the capability of the tunnel for resisting the deformation stress of the peripheral soil body is enhanced, and after the tunnel wall is completely stable, the final reinforcing and forming can be completed in a secondary lining mode.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts in the embodiments are referred to each other.
The term "and/or" herein means that three relationships may exist. For example, a and/or B may represent: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" or "an" and the like in the description and in the claims of this application do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Exemplary embodiments of the present invention have been described in detail with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various modifications and changes may be made to the above specific embodiments without departing from the scope of the present invention, and various combinations of the technical features and structures of the present invention may be implemented without departing from the scope of the present invention, which is defined by the appended claims.
Claims (6)
1. An external pipe segment type assembling device is characterized by comprising a pipe segment assembling machine, wherein the pipe segment assembling machine is arranged outside the front end of a shield body of an open shield machine and is used for assembling pipe segments of an excavated tunnel wall; an adjusting component is arranged between the segment erector and the shield body, and controls the transverse movement action and/or the circumferential rotation action of the segment erector;
the front part of the segment erector is provided with a support component; in the operation state of assembling the duct pieces, the supporting component props up the ground; the front part of the shield body is provided with a finger-shaped shield, and the outer contour of the finger-shaped shield is matched with the inner contour of the assembled segment lining.
2. The external tube sheet type assembling device according to claim 1, wherein the adjusting assembly comprises:
an axial expansion bracket; and
the rotary disc is rotatably arranged on the axial telescopic frame, and the segment erector is supported on the rotary disc;
the segment erector and the rotary disc are fixedly arranged, or a radial push rod is arranged between the segment erector and the rotary disc.
3. The utility model provides an open shield of external tube sheet formula constructs machine which characterized in that includes:
a shield body;
the external tube sheet type assembling device of claim 1 or 2, which is arranged outside the front end of the shield body;
the excavating equipment is arranged at the front part of the shield body and is used for excavating a tunnel face; and
and the material conveying equipment is arranged in the shield body and used for transporting the muck.
4. The external tube sheet type open shield tunneling machine according to claim 3, wherein a rear corollary device is further arranged at the rear part of the shield body.
5. The external tube sheet type open shield tunneling machine according to claim 3, wherein a walking support component is arranged at the bottom of the shield body, the walking support component is a walking wheel arranged at the bottom of the shield body, and a walking track corresponding to the walking wheel is arranged on the assembled tube sheet.
6. The external tube sheet type open shield tunneling machine according to claim 3, wherein the material conveying equipment comprises a scraper chain conveyor and a belt conveyor which are arranged in a front-to-back butt joint manner, and the scraper chain conveyor can move back and forth in the shield body; the shield body inner chamber is two layer construction at least, excavating equipment includes:
the spiral drilling machine is arranged in one layer of the shield body and can perform telescopic tunneling action; and
and the shoveling machines are arranged in each layer of the shield body and operate independently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920876025.6U CN210530855U (en) | 2019-06-12 | 2019-06-12 | External tube sheet type assembling device and open shield machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920876025.6U CN210530855U (en) | 2019-06-12 | 2019-06-12 | External tube sheet type assembling device and open shield machine |
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| Publication Number | Publication Date |
|---|---|
| CN210530855U true CN210530855U (en) | 2020-05-15 |
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| CN201920876025.6U Active CN210530855U (en) | 2019-06-12 | 2019-06-12 | External tube sheet type assembling device and open shield machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159301A (en) * | 2019-06-12 | 2019-08-23 | 李建斌 | External pipe type assembly device, open shield machine and method for tunnel construction |
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2019
- 2019-06-12 CN CN201920876025.6U patent/CN210530855U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159301A (en) * | 2019-06-12 | 2019-08-23 | 李建斌 | External pipe type assembly device, open shield machine and method for tunnel construction |
| CN110159301B (en) * | 2019-06-12 | 2024-02-09 | 中铁工程装备集团盾构制造有限公司 | External segment type assembling device, open shield machine and tunnel construction method |
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