CN109915185B - TBM middle plate frame system that crosses station - Google Patents
TBM middle plate frame system that crosses station Download PDFInfo
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- CN109915185B CN109915185B CN201910224101.XA CN201910224101A CN109915185B CN 109915185 B CN109915185 B CN 109915185B CN 201910224101 A CN201910224101 A CN 201910224101A CN 109915185 B CN109915185 B CN 109915185B
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Abstract
The invention relates to the field of track tunneling support, in particular to a TBM (tunnel boring machine) middle plate station-crossing support system which comprises a plurality of convex columns, vertical pipes and transverse pipes, wherein a support rod is arranged in each vertical pipe in a sliding manner, and a locking block is arranged on each support rod; the vertical pipe is provided with a through hole, the pipe wall of the vertical pipe is fixed with a frame, and the locking block penetrates through the through hole and is positioned in the frame; an elastic piece is arranged between the supporting rod and the vertical pipe, when the elastic piece is in a natural state, the upper end of the supporting rod is higher than the upper end of the vertical pipe, and the locking block is positioned at the upper end inside the frame; the convex post includes convex part and lower convex part, and the convex post runs through the frame and rotates with the frame to be connected, and the part is raised the upper end that the position is located the frame inside partially, and the part is raised the lower extreme that the position is located the frame inside down, and the upper end of going up the convex part and the lower extreme of lower convex part and the tip fixed connection of violently managing, the axial of protruding post is followed to lower convex part is equipped with a plurality of locking grooves, and during the elastic component compression, the locking piece can slide in the locking groove. When the technical scheme is adopted, the support is convenient to erect and dismantle.
Description
Technical Field
The invention relates to the field of track tunneling support, in particular to a TBM middle plate station-passing support system.
Background
With the rapid development of national economy, the construction of engineering such as railways, highways, rail traffic, pipelines, hydraulic engineering and the like by adopting a heading machine construction method is increasingly popularized, and the construction by adopting an open type TBM (tunnel boring machine) in an extra-long tunnel or a long and large interval also becomes a trend.
When the TBM passes through a station, two modes are usually adopted, wherein one mode is that the TBM tunnels through a station platform layer, the upper part of the station synchronously performs station hall layer excavation and supporting and reserves the thickness of a safe rock stratum; the other type is TBM stepping passing, namely when the TBM arrives at the station, the middle station can provide stepping passing clearance, the TBM adopts a stepping mode of air pushing to pass through the middle station, and the stepping passing through inverted arch of the station can be made into a flat bottom or an arc bottom.
According to the conditions of route planning, station terrain and the like, the same station platform transfer station is required at some stations, so that two routes (or tunnels) are required to be positioned at the same side of the station platform and are respectively positioned at an upper layer and a lower layer (for example, the upper layer is a right route, and the lower layer is a left route). When the TBM tunnels to the station, the TBM can step to pass the station, the TBM of the right line is required to be in front, a middle plate arc-shaped bottom stepping passing mode is adopted, and the TBM of the left line is in back, a bottom plate flat bottom stepping passing mode is adopted.
When the TBM of right side circuit passes through the medium plate, deformation can take place in the middle part of singly leaning on both sides wall to support to the medium plate, for the transmission load, can erect the support between bottom plate and medium plate and support to the medium plate, later when the TBM of left side circuit passes through the bottom plate, the support that will support is demolishd, treat that the TBM of left and right side circuit all passes through the platform after, at later stage platform construction in-process, can build the crossbeam and support to the medium plate to satisfy the bearing capacity of medium plate.
But erect the support and waste time and energy, treat the TBM of left side circuit in addition when passing through the bottom plate, need demolish the support again, simultaneously in order to ensure the whole steadiness of support, the workman has carried out firm connection between with the steel pipe usually when erectting the support, has increased the work load when demolising the support like this again, has prolonged the time of demolising the support, is unfavorable for the propulsion of time limit for a project, and intensity of labor is big moreover, has also increased the cost input simultaneously.
Disclosure of Invention
The invention aims to provide a support convenient to erect and dismantle when a TBM middle plate passes a station.
In order to achieve the aim, the technical scheme of the invention provides a TBM middle plate standing support system which comprises a plurality of convex columns, vertical pipes and transverse pipes, wherein a support rod is slidably arranged in each vertical pipe, and a locking block is arranged on each support rod; the vertical pipe is provided with a through hole penetrating through the vertical pipe along the radial direction, a frame is fixed on the pipe wall of the vertical pipe and is positioned at the through hole, and the locking block penetrates through the through hole and is positioned in the frame; an elastic piece is arranged between the supporting rod and the vertical pipe, when the elastic piece is in a natural state, the upper end of the supporting rod is higher than the upper end of the vertical pipe, and the locking block is positioned at the upper end inside the frame; the convex post includes convex part and lower convex part, the convex post runs through the frame and rotates with the frame to be connected, and part epirelief position is in the inside upper end of frame, and part lower convex part is in the inside lower extreme of frame, the upper end of going up the convex part and the lower extreme of lower convex part all with the tip fixed connection of violently managing, the convex part is equipped with a plurality of locking grooves along the axial of convex post down, and during the elastic component compression, the locking piece can slide into in the locking groove.
The technical effect of the scheme is as follows: when the TBM needs to step through a station, the support system is moved to the lower layer of the station, and then the center plate can be supported, in the supporting process, a vertical pipe close to one end of the TBM is manually positioned firstly, after the upper end of a supporting rod is contacted with the center plate, the TBM can start to move on the center plate, in the moving process of the TBM, other vertical pipes are manually pulled to be erected, namely the TBM advances forwards while the support is built, and the TBM is always positioned above the back of a worker, so that the manual erection of the support system is very safe; meanwhile, according to the requirement of a supporting force application point, three adjacent vertical pipes can be positioned in the same straight line and can form a certain angle, so that the erection is very convenient; in the moving process of the TBM, the middle plate can deform due to the weight of the TBM, so that the support rod is pushed to slide downwards, the locking block is driven to slide into the locking groove, the support system is automatically reinforced, extra firm connection processing is not needed manually, and the function of advancing while building is realized; after the supporting work is finished, the locking block can be separated from the locking groove, so that the support system can be conveniently recovered, and a TBM on the lower layer of the station can conveniently pass through the support system; compared with the traditional support frame erection method, the support frame disassembly method and the support frame disassembly method, after the support frame system is adopted to support the center plate, the construction period of the TBM of the right-side line and the construction period of the TBM of the left-side line passing through each station can be shortened by 3-4 days, the construction period can be promoted, the labor intensity is low, and the investment cost is low.
Furthermore, the lower end of each vertical pipe is provided with a pulley, and the length of the supporting rod is larger than or equal to the distance from the upper end of each vertical pipe to the lower end of each pulley. The technical effect of the scheme is as follows: the support is built by pulling the vertical pipe to slide, so that the support is convenient and labor-saving, and the bearing capacity of the pulley can be reduced.
Further, the length of the supporting rod is larger than the distance from the upper end of the vertical pipe to the lower end of the pulley. The technical effect of the scheme is as follows: can transfer most bearing capacity to the bracing piece on, reduce the bearing capacity of pulley.
Furthermore, the depth of the locking groove is larger than the distance between the upper end of the support rod and the upper end of the stand pipe. The technical effect of the scheme is as follows: the bearing capacity on the supporting rod is prevented from being transmitted to the vertical pipe through the locking block, and the bearing capacity of the pulley can be reduced.
Furthermore, the upper surface of the lower convex part and the groove wall of the locking groove are in arc transition. The technical effect of the scheme is as follows: ensure that the smooth card of lock block goes into the locking inslot to improve the steadiness of support system, guarantee that the in-process support system of support can not take place to rock.
Furthermore, four locking grooves are uniformly formed in the lower convex part. The technical effect of the scheme is as follows: violently the pipe rotates and drives the convex post and rotate the back, conveniently builds two rows and above bracing piece and supports the median plate, can ensure the stability of support system simultaneously.
Furthermore, eight locking grooves are uniformly formed in the lower convex part. The technical effect of the scheme is as follows: according to the requirement of a supporting force application point, a certain angle is formed between three adjacent vertical pipes in the same row, and the erection is convenient.
Furthermore, a graphite layer is arranged on the locking block. The technical effect of the scheme is as follows: the lubricity of the locking block is increased, and the locking block can conveniently slide into the locking groove.
Furthermore, the diameter of the upper end of the supporting rod is larger than that of the middle part of the supporting rod. The technical effect of the scheme is as follows: the contact area between the upper end of the supporting rod and the middle plate is increased, and the supporting is more stable.
Further, the pulley is a universal wheel. The technical effect of the scheme is as follows: the support is ensured to be more smoothly slid in the process of building the support, the manual strength is reduced, and meanwhile, the safety distance between a worker and the TBM can be ensured.
Drawings
FIG. 1 is a front cross-sectional view of an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 2 at B;
FIG. 4 is a three-dimensional schematic view of a convex column.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a convex column 1, a vertical pipe 2, a transverse pipe 3, universal wheels 4, a support rod 5, a pressure spring 6, a locking block 7, a through hole 8, a frame 9, an upper convex part 10, a lower convex part 11 and a locking groove 12.
The examples are substantially as shown in figures 1 to 4 of the accompanying drawings: the middle plate over-station support system in the TBM as shown in figures 1 and 2 comprises a plurality of convex columns 1, a plurality of vertical pipes 2 and a plurality of transverse pipes 3. As shown in fig. 2, two pulleys are disposed at the lower end of each vertical pipe 2, the two pulleys are respectively located at the front side and the rear side of the vertical pipe 2, a support shaft (not shown in the figure) is welded at the lower end of the vertical pipe 2, the pulleys in this embodiment are universal wheels 4, and a support frame at the outer side of the universal wheels 4 is welded with the support shaft.
A support rod 5 is arranged in each vertical pipe 2 in a sliding mode, the support rod 5 penetrates through the vertical pipe 2, the support rod 5 is connected with the vertical pipe 2 through a pressure spring 6, the lower end of the pressure spring 6 is welded with the vertical pipe 2, and the upper end of the pressure spring 6 is welded with the support rod 5; the length of the support rod 5 is greater than or equal to the distance from the upper end of the vertical pipe 2 to the lower end of the universal wheel 4 (the universal wheel 4 is in contact with the ground), and the length of the support rod 5 in the embodiment is greater than the distance from the upper end of the vertical pipe 2 to the lower end of the universal wheel 4; the diameter of the upper end of the support rod 5 is larger than that of the middle part of the support rod 5, the middle part of the support rod 5 is welded with a locking block 7, and a graphite layer is coated on the locking block 7.
As shown in fig. 3, the vertical pipe 2 is provided with a through hole 8 penetrating through the vertical pipe 2 along the radial direction (i.e. the horizontal direction) of the vertical pipe 2, a frame 9 is arranged at the position of the through hole 8, the frame 9 is welded with the pipe wall of the vertical pipe 2, the frame 9 is in a shape of ']', the inside of the frame 9 is divided into an upper part and a lower part, the locking block 7 passes through the through hole 8 and is positioned at the upper end inside the frame 9, and at this time, the pressure spring 6 shown in fig. 2 is in a natural extension state.
As shown in fig. 4, the male post 1 includes an upper boss 10 and a lower boss 11; as shown in fig. 3, the male stud 1 penetrates the frame 9 and is rotatably connected to the frame 9, i.e. the frame 9 is provided with a circular hole, the male stud 1 penetrates the circular hole, a part of the upper protrusion 10 is located at the upper end inside the frame 9, a part of the lower protrusion 11 is located at the lower end inside the frame 9, and the upper end of the upper protrusion 10 and the lower end of the lower protrusion 11 are welded to the end of the cross pipe 3.
As shown in fig. 4, the lower protrusion 11 is opened with a plurality of locking grooves 12 along the axial direction (i.e. vertical direction) of the male stud 1, for example, four locking grooves 12 are opened uniformly, or eight locking grooves 12 are opened uniformly, wherein the upper surface of the lower protrusion 11 and the groove wall of the locking grooves 12 are in circular arc transition. The depth of the locking groove 12 as shown in fig. 3 is greater than the distance between the upper end of the support bar 5 and the upper end of the riser 2 as shown in fig. 2.
The specific implementation process is as follows:
when the TBM needs to step through the station, the support system shown in figure 1 is moved to the lower layer of the station, and then the center plate can be supported.
In the supporting process, taking fig. 1 as an example, the leftmost vertical pipe 2 is manually positioned (assuming that five vertical pipes 2 on the right side are in a folded state at this time), so that the upper end of the leftmost supporting rod 5 contacts with the middle plate, and at this time, the TBM can start to move on the middle plate.
In the moving process of the TBM, the five vertical pipes 2 in the folding state are manually pulled to move rightwards, so that all the vertical pipes 2 are positioned on the same straight line, namely the TBM advances forwards while the support is built, and the TBM is always positioned above the left of a worker, and the manual support system is very safe.
In-process that removes at TBM, TBM's weight can make the medium plate take place deformation to promote the bracing piece 5 lapse as shown in fig. 2 with the medium plate contact, and then drive in locking piece 7 slips into locking groove 12 as shown in fig. 3, realize the automatic locking function in locking piece 7 and locking groove 12, consolidate the mounting system promptly automatically, need not the manual work and carry out extra firm joint processing (for example consolidate through the bolt), reached the limit and built the support, the effect that TBM was marchd on the limit.
Certainly, according to the building requirement, the support system shown in fig. 1 can be arranged in two rows, that is, the support system shown in fig. 1 is bent manually, then the leftmost vertical pipe 2 and the rightmost vertical pipe 2 in fig. 1 are positioned, the upper ends of the support rods 5 in the two vertical pipes 2 are in contact with the middle plate, and at this time, the TBM can start to move on the middle plate. In the moving process of the TBM, all the stand pipes 2 can be arranged into two rows by manually pulling the remaining four stand pipes 2 to move rightwards, so that the third stand pipe 2 and the fourth stand pipe 2 are still connected through the third transverse pipe 3 as shown in fig. 1, and only the transverse pipe 3 on the right side as shown in fig. 3 needs to rotate backwards by 90 degrees, so that the convex column 1 as shown in fig. 4 is driven to rotate backwards by 90 degrees, at the moment, the locking block 7 as shown in fig. 3 can still be inserted into the locking groove 12 to reinforce the support system, and the top view of the whole support system forms a U shape.
Claims (10)
1. The utility model provides a TBM medium plate support system that stands, its characterized in that: the device comprises a plurality of convex columns, vertical pipes and transverse pipes, wherein a support rod is arranged in each vertical pipe in a sliding manner, and a locking block is arranged on each support rod; the vertical pipe is provided with a through hole penetrating through the vertical pipe along the radial direction, a frame is fixed on the pipe wall of the vertical pipe and is positioned at the through hole, and the locking block penetrates through the through hole and is positioned in the frame; an elastic piece is arranged between the supporting rod and the vertical pipe, when the elastic piece is in a natural state, the upper end of the supporting rod is higher than the upper end of the vertical pipe, and the locking block is positioned at the upper end inside the frame; the convex post includes convex part and lower convex part, the convex post runs through the frame and rotates with the frame to be connected, goes up the partly upper end that is located the frame inside of convex part, and partly lower extreme that is located the frame inside of lower convex part, the upper end of going up the convex part and the lower extreme of lower convex part all with the tip fixed connection of violently managing, the convex part is equipped with a plurality of locking grooves along the axial of convex post down, and during the elastic component compression, the locking piece can slide into in the locking groove.
2. The TBM mid-deck station-passing support system of claim 1, wherein: the lower end of each vertical pipe is provided with a pulley, and the length of the supporting rod is greater than or equal to the distance from the upper end of each vertical pipe to the lower end of each pulley.
3. The TBM mid-deck station-passing support system of claim 2, wherein: the length of the supporting rod is greater than the distance from the upper end of the vertical pipe to the lower end of the pulley.
4. The TBM mid-slab passing support system according to claim 3, wherein: the depth of the locking groove is larger than the distance between the upper end of the supporting rod and the upper end of the vertical pipe.
5. The TBM mid-slab passing support system according to claim 4, wherein: the upper surface of the lower convex part and the groove wall of the locking groove are in arc transition.
6. The TBM mid-slab passing support system according to claim 5, wherein: four locking grooves are uniformly formed in the lower convex part.
7. The TBM mid-slab passing support system according to claim 5, wherein: eight locking grooves are uniformly formed in the lower convex part.
8. The board passing support system in the TBM as claimed in claim 6 or 7, wherein: and a graphite layer is arranged on the locking block.
9. The TBM mid-deck station-passing support system of claim 8, wherein: the diameter of the upper end of the supporting rod is larger than that of the middle part of the supporting rod.
10. The TBM mid-deck station-passing support system of claim 9, wherein: the pulley is a universal wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910224101.XA CN109915185B (en) | 2019-03-22 | 2019-03-22 | TBM middle plate frame system that crosses station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910224101.XA CN109915185B (en) | 2019-03-22 | 2019-03-22 | TBM middle plate frame system that crosses station |
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| CN109915185A CN109915185A (en) | 2019-06-21 |
| CN109915185B true CN109915185B (en) | 2020-07-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113565522B (en) * | 2021-08-10 | 2023-04-07 | 中铁十一局集团有限公司 | Tunnel Boring Machine (TBM) station-passing bracket between mountain tunnels and station-passing method |
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| KR101105895B1 (en) * | 2009-05-27 | 2012-01-17 | 김종헌 | scaffold wedge hook |
| CN203175037U (en) * | 2013-05-03 | 2013-09-04 | 姚军 | Internal formwork bracket for building |
| CN104495068B (en) * | 2014-11-27 | 2017-12-05 | 重庆小康工业集团股份有限公司 | Pallet supports clamp system |
| CN207131065U (en) * | 2017-08-23 | 2018-03-23 | 毕昆鹏 | A kind of building scaffold of high security |
| CN207597762U (en) * | 2017-12-11 | 2018-07-10 | 浙江梵隆汽车部件有限公司 | A kind of Dismantable handrail guardrail |
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