CN214118188U

CN214118188U - Sub-shield device for bridge shield construction

Info

Publication number: CN214118188U
Application number: CN202022535852.4U
Authority: CN
Inventors: 陈新涛; 李卫东; 高虎; 朱伟杰; 邹亚峰; 王越彬
Original assignee: Third Engineering Co Ltd of China Railway No 10 Engineering Group Co Ltd
Current assignee: Third Engineering Co Ltd of China Railway No 10 Engineering Group Co Ltd
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-09-03
Anticipated expiration: 2030-11-05

Abstract

The utility model relates to the technical field of bridge shield construction, and discloses a sub-shield device used in bridge shield construction, which comprises shield outer frames arranged on a steel shield support frame at intervals, wherein a slidable sub-shield expansion frame is arranged above the adjacent shield outer frame; the shield constructs the outrigger and includes 2 parallel arrangement's tie-beam, is connected through telescopic supporting beam between the tie-beam. Through the structure, the supporting height of the supporting beam can be adjusted to adjust the height of the shield outer frame supporting sub-shield telescopic frame, so that the sub-shield device can be pushed into the frame bridge meeting the height requirements of different sub-shield tunneling surfaces, and the sub-shield device can be repeatedly used.

Description

Sub-shield device for bridge shield construction

Technical Field

The utility model relates to a bridge type shield constructs construction technical field, and specifically speaking relates to a sub-shield constructs device that is arranged in bridge type shield to construct construction.

Background

With the rapid development of urban construction, more and more urban roads need to pass through the existing railway line, and the jacking method is mostly adopted for construction in order to avoid interrupting the driving. In order to meet the requirement that the existing line is jacked into the large-span frame bridge at a high driving speed, a bridge type shield method is generally adopted for jacking the frame bridge. The frame bridge is constructed by adopting a bridge shield construction method, the slope ratio of the highway can be kept by using a steel shield support frame on the basis of the traditional jacking construction method, the construction safety and applicability are improved, and the disturbance to the highway subgrade in the jacking construction process of a shallow covering layer is reduced to the maximum extent.

The application number is CN201220147819.7 discloses a modular sliding plate rolling and laying frame shield machine, a plurality of sub shields on the frame including the frame and establishing, every sub shield includes sub shield telescopic frame, dig-in tool and flexible power, including one locate need push up advance structure and shield push up advance end existing structure or roadbed slope on the sliding plate afterbody fixed body, the inside of every sub shield telescopic frame installs the slide reel that is in the back below of the dig-in tool, every sub shield all is equipped with a slide, the afterbody of the slide behind the slide reel that bypasses in the frame of every slide follow is fixed on the slide afterbody fixed body. Although the device can be better convenient for jacking the frame bridge, the defect that the sub-shield device cannot be reused due to the fact that the distance between the top of the tunneling surface of the sub-shield telescopic frame and the top end of the frame bridge cannot be adjusted because the height of the sub-shield telescopic frame supporting the frame cannot be adjusted still exists.

SUMMERY OF THE UTILITY MODEL

The utility model provides a support sub-shield that exists constructs the defect that flexible frame height can't be adjusted to prior art, the utility model provides a sub-shield constructs the device for in bridge type shield constructs the construction. The function of the sub-shield telescopic frame with uneven adaptive mass distribution can be realized by adjusting the supporting strength on the shield outer frame while adjusting the height of the shield outer frame supporting the sub-shield telescopic frame.

In order to solve the above technical problem, the present invention solves the above technical problems.

The sub-shield device used in bridge shield construction comprises shield outer frames which are arranged on a steel shield support frame at intervals, and a slidable sub-shield expansion frame is arranged above the adjacent shield outer frames; the shield constructs the outrigger and includes 2 parallel arrangement's tie-beam, is connected through telescopic supporting beam between the tie-beam.

Through the utility model provides a structure for a supporting beam's bearing height can be adjusted and make the shield construct outer frame support the height that the sub-shield constructs the flexible frame and obtain adjusting, thereby make the sub-shield construct the frame bridge top that the device can adapt to different sub-shield and construct the driving face height demand and advance, the sub-shield of being convenient for constructs the device and can used repeatedly.

As preferred, a supporting beam includes the first I-steel that links to each other with the downside tie-beam and the channel-section steel that 2 links to each other with the upside tie-beam, and first I-steel includes the first recess that two symmetries set up, is equipped with the first bar groove that link up first recess setting along the upper and lower direction on the lateral wall of first recess, and 2 individual channel-section steels stretch into respectively in the first recess that corresponds, and the tip corresponds first bar groove and is equipped with first mounting hole under just being located on the lateral wall of channel-section steel, is equipped with the first fastening bolt who runs through first bar inslot in the first mounting hole.

Through the utility model provides a structure for twist and move a fastening bolt and can adjust a supporting beam's bearing height, thereby realize a supporting beam's flexible regulation.

Preferably, the 2 connecting beams are second I-beams, each second I-beam comprises two symmetrically arranged second grooves, and the opposite side surfaces of the 2 second I-beams are provided with sliding grooves and second strip-shaped grooves which are positioned on the two sides of the sliding grooves and communicated with the corresponding second grooves along the front-back direction; the lower extreme of first I-steel and the top of 2 channel-section steels all are equipped with a mounting panel, lie in on the mounting panel and correspond gliding slider in the spout, correspond the second bar groove on the mounting panel and be equipped with the second mounting hole, are equipped with the second fastening bolt that runs through the setting of second bar groove in the second mounting hole.

Through the structure in the utility model, the second fastening bolt is screwed to move the position of the supporting beam, thereby being convenient for adjusting the supporting strength of different positions on the shield outer frame and being convenient for the shield outer frame to adapt to the sub-shield telescopic frame with uneven mass distribution; the sliding grooves are matched with the sliding blocks, so that the quantity of the supporting beams can be increased and decreased conveniently while the supporting beams are guided to move.

Preferably, a bolt mounting hole is formed in the lower side wall of the second groove of the second I-steel on the lower side, and a bolt connected with the steel shield support frame is arranged in the bolt mounting hole, so that the sub-shield device can be mounted and dismounted on the steel shield support frame, and the sub-shield device can be reused conveniently.

Preferably, a slide rail with a T-shaped section is arranged on the upper side surface of the second I-steel on the upper side along the front-back direction; the sub-shield telescopic frame comprises a rectangular mounting frame, a sliding groove matched with the sliding rail is formed in the lower side face of the mounting frame, and the sub-shield telescopic frame is better arranged on the adjacent shield outer frame in a sliding mode.

Drawings

Fig. 1 is a schematic view of an installation position of a sub shield device used in bridge shield construction in embodiment 1;

FIG. 2 is a schematic view of a shield outer frame in example 1;

fig. 3 is a schematic view of a connection beam in embodiment 1;

FIG. 4 is a schematic view of a first I-beam of example 1;

fig. 5 is a schematic view of a channel steel in example 1.

The names of the parts indicated by the numerical references in the drawings are as follows: 100. a steel shield support frame; 110. a shield outer frame; 120. the sub shield is provided with a telescopic frame; 130. a frame bridge; 210. a connecting beam; 220. a support beam; 310. a second I-steel; 311. a second groove; 312. a chute; 313. a second strip groove; 314. a bolt mounting hole; 315. a slide rail; 410. a first I-steel; 411. a first groove; 412. a first bar-shaped groove; 420. mounting a plate; 421. a slider; 422. a second mounting hole; 510. channel steel; 511. a first mounting hole.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples. It is to be understood that the examples are illustrative of the invention only and are not limiting.

Example 1

As shown in fig. 1 to 5, the present embodiment provides a sub-shield apparatus for bridge shield construction, which includes shield outer frames 110 spaced apart from each other on a steel shield support frame 100, and a slidable sub-shield expansion frame 120 is disposed above each adjacent shield outer frame 110; the shield outer frame 110 comprises 2 parallel connection beams 210, and the connection beams 210 are connected by a telescopic support beam 220.

In this embodiment, the steel shield support frame 100 is connected to the jacking front side of the frame bridge 130 through a structural arrangement of CN201220147819.7 application, wherein the shield outer frame 110 is arranged on the front side of the upper end of the steel shield support frame 100 and is used for supporting the sub-shield telescopic frame 120, so that a gap exists between the top of the heading face of the sub-shield telescopic frame 120 in shield heading and the top of the frame bridge 130, and the frame bridge 130 is convenient to jack; through the telescopic arrangement of the supporting beams 220 in the embodiment, the supporting ends of the supporting beams 220 can be adjusted to adjust the height of the shield outer frame 110 supporting the sub-shield telescopic frame 120, so that the sub-shield device can be pushed into the frame bridge 130 meeting the requirements of different sub-shield tunneling surface heights, and the sub-shield device can be reused.

In this embodiment, the supporting beam 220 includes the first i-steel 410 that links to each other with the lower side tie-beam 210 and the channel-section steel 510 that 2 links to each other with the upper side tie-beam 210, first i-steel 410 includes the first recess 411 that two symmetries set up, be equipped with the first bar groove 412 that link up the setting of first recess 411 along the up-down direction on the lateral wall of first recess 411, 2 channel-section steels 510 stretch into corresponding first recess 411 respectively, it is equipped with first mounting hole 511 to be located the lower tip and correspond first bar groove 412 on the lateral wall of channel-section steel 510, be equipped with the first fastening bolt who runs through in the first bar groove 412 in the first mounting hole 511.

In this embodiment, the first i-beam 410 and the channel steel 510 adopted by the support beam 220 are made of simple and easily available materials; through the arrangement of the first strip-shaped groove 412, the first mounting hole 511 and the first fastening bolt, the channel steel 510 extends into the corresponding first groove 411 and penetrates through the first strip-shaped groove 412 through the first fastening bolt, so that the channel steel 510 and the first i-shaped steel 410 are fixed, and the support beam 210 is supported by the support beam 220; wherein, make loosen first fastening bolt and make channel-section steel 510 screw up first fastening bolt after moving up and down in first recess 411 to realize supporting beam 220's flexible regulation.

In this embodiment, the 2 connecting beams 210 are all second i-beams 310, each second i-beam 310 includes two second grooves 311 symmetrically arranged, and the opposite side surfaces of the 2 second i-beams 310 are provided with sliding grooves 312 and second strip-shaped grooves 313 located on the two sides of the sliding grooves 312 and communicated with the corresponding second grooves 311 along the front-back direction; the lower extreme of first I-steel 410 and the top of 2 channel-section steels 510 all are equipped with a mounting panel 420, lie in on the mounting panel 420 and correspond gliding slider 421 of spout 312, correspond second bar groove 313 on the mounting panel 420 and be equipped with second mounting hole 422, are equipped with the second fastening bolt that runs through second bar groove 313 and set up in the second mounting hole 422.

In this embodiment, the second i-beam 310 is adopted as the connecting beam 210, and the material is simple and easy to obtain; through the arrangement of the second strip-shaped groove 313, the mounting plate 420, the second mounting hole 422 and the second fastening bolt, the second fastening bolt penetrates through the second strip-shaped groove 313 to connect the mounting plate 420 to the corresponding connecting beam 210, so that the support beam 220 can be conveniently detached from and mounted on the connecting beam 210; when the second fastening bolt is loosened and the supporting beam 220 is shifted along the second strip-shaped groove 313, the second fastening bolt is tightened, so that the supporting beam 220 moves between the connecting beams 210, and the supporting strength of different positions on the shield outer frame 110 can be adjusted conveniently to adapt to the sub-shield telescopic frame 120 with uneven mass distribution; the sliding grooves 312 and the sliding blocks 421 are matched to guide the movement of the supporting beams 220 and increase or decrease the number of the supporting beams 220.

In this embodiment, a bolt mounting hole 314 is formed in a lower side wall of the second groove 311 of the second i-beam 310 located on the lower side, and a bolt connected with the steel shield support frame 100 is arranged in the bolt mounting hole 314, so that the sub-shield device can be mounted on and dismounted from the steel shield support frame 100, and the sub-shield device can be reused conveniently.

In this embodiment, a slide rail 315 having a T-shaped cross section is disposed on the upper side of the second h-beam 310 along the front-back direction; the sub-shield telescopic frame 120 includes a rectangular mounting frame, and a sliding groove matched with the sliding rail 315 is formed on a lower side surface of the mounting frame.

Through the structure in the embodiment, the sliding rail 315 and the sliding groove are cooperatively arranged, so that the sub-shield telescopic frame 120 is preferably slidably arranged on the adjacent shield outer frame 110.

When the sub-shield device for bridge shield construction in the embodiment is used specifically, the sub-shield device is assembled on a construction site, then the assembled sub-shield device is fixed above the steel shield support frame 100 through bolts, and the support height of the support beam 220 is adjusted by screwing the first fastening bolt according to the required height of the tunneling surface of the sub-shield, so that the sub-shield telescopic frame 120 meets the tunneling requirement; according to the weight of the sub-shield telescopic frame 120, the second fastening bolt is screwed and the position of the supporting beam 220 is moved, so that the supporting strength on the shield outer frame 110 is adapted to the sub-shield telescopic frame 120, wherein the supporting beam 220 can be slid in or out of the end of the connecting beam to increase or decrease the number of the supporting beams 220, so that the shield outer frame 110 preferably supports the sub-shield telescopic frame 120.

In short, the above is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the scope of the present invention.

Claims

1. A sub-shield constructs device for in bridge type shield constructs construction, its characterized in that: the shield structure comprises shield outer frames (110) arranged on a steel shield support frame (100) at intervals, and a slidable sub-shield telescopic frame (120) is arranged above the adjacent shield outer frames (110); the shield outer frame (110) comprises 2 parallel connecting beams (210), and the connecting beams (210) are connected through telescopic supporting beams (220).

2. The sub-shield device for bridge shield construction according to claim 1, wherein: a supporting beam (220) includes first I-steel (410) and 2 channel-section steels (510) that link to each other with upside tie-beam (210) that link to each other with downside tie-beam (210), first I-steel (410) include first recess (411) that two symmetries set up, be equipped with first bar groove (412) that link up first recess (411) and set up along the upper and lower direction on the lateral wall of first recess (411), 2 in channel-section steels (510) stretched into corresponding first recess (411) respectively, it is equipped with first mounting hole (511) to correspond first bar groove (412) and just be located the lower tip on the lateral wall of channel-section steels (510), be equipped with the first fastening bolt who runs through first bar groove (412) in first mounting hole (511).

3. The sub-shield device used in bridge shield construction according to claim 2, wherein: the 2 connecting beams (210) are all second I-beams (310), each second I-beam (310) comprises two second grooves (311) which are symmetrically arranged, and the opposite side surfaces of the 2 second I-beams (310) are provided with sliding grooves (312) and second strip-shaped grooves (313) which are positioned on the two sides of the sliding grooves (312) and communicated with the corresponding second grooves (311) along the front-back direction; the lower extreme of first I-steel (410) and the top of 2 channel-section steels (510) all are equipped with a mounting panel (420), lie in on mounting panel (420) and correspond gliding slider (421) in spout (312), correspond second bar groove (313) and be equipped with second mounting hole (422) on mounting panel (420), are equipped with the second fastening bolt that runs through second bar groove (313) and set up in second mounting hole (422).

4. The sub-shield device used in bridge shield construction according to claim 3, wherein: and a bolt mounting hole (314) is formed in the lower side wall of the second groove (311) of the second I-shaped steel (310) on the lower side, and a bolt connected with the steel shield support frame (100) is arranged in the bolt mounting hole (314).

5. The sub-shield device used in bridge shield construction according to claim 3, wherein: a slide rail (315) with a T-shaped section is arranged on the upper side surface of the second I-shaped steel (310) along the front-back direction; the sub-shield telescopic frame (120) comprises a rectangular mounting frame, and a sliding groove matched with the sliding rail (315) is formed in the lower side face of the mounting frame.