CN206503608U - A kind of contractibility assembled steel board mount - Google Patents
A kind of contractibility assembled steel board mount Download PDFInfo
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- CN206503608U CN206503608U CN201720162331.4U CN201720162331U CN206503608U CN 206503608 U CN206503608 U CN 206503608U CN 201720162331 U CN201720162331 U CN 201720162331U CN 206503608 U CN206503608 U CN 206503608U
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- end plates
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- steel pipe
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Abstract
The utility model is related to a kind of contractibility assembled steel board mount, type section including multiple interconnections, the two ends of each type section respectively connect a sectional dimension identical end plate, it is characterized in that, attachment structure between adjacent type section includes the end plate described in two, the rectangle clip, Elastic Block and the bolt that are engaged with two end plates, two described end plates, one is provided with round steel pipe tenon, and another is provided with the round steel pipe tongue-and-groove coordinated with the tenon；The sectional dimension of described Elastic Block is not more than two end plates, is placed between two end plates, and offer for the through hole through round steel pipe tenon；Bolt hole is offered on rectangle clip, for being bolted on two endplate outsides.
Description
Technical field
The utility model belongs to field of civil engineering, is related to a kind of preparation peace of contractibility assembled stiffening rib steel plate support
Fill methods and applications.
Background technology
Due to the influence of the construction action such as excavation, explosion power or geological process power in mountain tunnel work progress, sometimes
The original state of the meeting original rock mass of damage hill, makes tunnel surrounding be affected, so as to cause such as tunnel cross-section diminution, country rock
The phenomenons such as large deformation, cause supporting construction to be distorted and deformation failure, and extreme difficulties are brought to constructing tunnel and supporting.Mountain
The complexity of ridge rock mass in tunnel structure, also results in support structure design and works heavy, make construction speed slow, serious engineering constraint
Duration, or even the security incident such as cave in.
For mountain tunnel, generally rigid support and the collapsible timbering used in current production practices.
It is past because its mechanical property can not meet mountain tunnel surrouding rock deformation requirement for the rigid support used at present
Toward causing support to damage, maintenance cost is caused to increase, and the requirement of safety in production can not be met.
For the collapsible timbering used at present, otherwise insufficient strength (such as I-shaped die collapsible timbering), otherwise construction
Complex process (concrete filled steel tube collapsible timbering), otherwise " at contractible joint " turn into " by it is curved, cut weak area ".
In terms of construction, when carrying out tunnel support construction to mountain tunnel at present, without specification, uniformly, specific construction
Method can be followed, and be inevitably present that constructing operation is random, lack of standardization, construction efficiency is relatively low, construction molding during practice of construction
Supporting construction using effect it is poor the problems such as.
Utility model content
In view of this, the utility model provides a kind of contractibility, the mountain ridge tunnel that intensity is high, simple in construction, efficiency of construction is high
Road supporting construction is directed to existing mountain tunnel supporting construction.Technical scheme is as follows：
A kind of contractibility assembled steel board mount, includes the type section of multiple interconnections, and the two ends of each type section are respectively connected
One sectional dimension identical end plate, it is characterised in that the attachment structure between adjacent type section include end plate described in two,
Rectangle clip, Elastic Block and the bolt being engaged with two end plates, two described end plates, one is provided with round steel pipe tenon
Head, another is provided with the round steel pipe tongue-and-groove coordinated with the tenon；The sectional dimension of described Elastic Block is not more than two
Individual end plate, is placed between two end plates, and offer for the through hole through round steel pipe tenon；Offered on rectangle clip
Bolt hole, for being bolted on two endplate outsides.
Preferably, each type Duan Jun includes two edge steel plates and the steel web being connected between two edge steel plates,
Transverse stiffener and longitudinal stiffener are provided with edge steel plate.
The utility model has advantages below compared with prior art：1. the utility model is assembling square-section steel
Hardened structure, because weld job is carried out all outside tunnel, can significantly accelerate tunnel excavation, support speed；2. the utility model
By setting stiffening rib structure, the intensity of support has been greatly reinforced, has been tunnel excavation and later stage using adding safety guarantee；
3. compared with conventional collapsible timbering system, the utility model is provided with tenon structure in connecting portion, and in the centre of tenon structure
One piece of elastomer is set, so as to realize contractibility, and bending resistance of the support in connecting portion had both been strengthened, branch is strengthened again
Frame changes shape of the connecting portion of collapsible timbering system for the weak area of stress in the shear resistance of connecting portion from this
Condition, improves the security of support system；4. in terms of construction, construction method specification, uniformly, specifically effectively prevent reality
Having that constructing operation is random, lack of standardization, construction efficiency is relatively low, construction molding supporting construction using effect is poor during construction etc. asks
Topic.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described.
Fig. 1 is a kind of contractibility assembled stiffening rib steel plate support overall schematic of the utility model.
Internal structural map when Fig. 2 is medium-sized section 2 of Fig. 1 plus transverse stiffener.
Fig. 3 is medium-sized section of 2 front views of Fig. 1.
Fig. 4,5 be attachment structure 7 assembling schematic diagram.
Fig. 6 is the schematic diagram after the completion of attachment structure 7 is assembled.
Fig. 7 is profiles of the Fig. 6 at B.
Fig. 8 is profiles of the Fig. 6 at C.
Embodiment
A kind of contractibility assembled stiffening rib steel plate support of the utility model embodiment is carried out below in conjunction with the accompanying drawings detailed
Description.
It will be appreciated that described embodiment is only a part of embodiment of the utility model, rather than whole implementation
Example.
As shown in figure 1, the utility model structure is made up of type section 1,2,3,4,5,6 six type sections and attachment structure 7；Along
Tunnel excavation direction projection, six types section by arranging from small to large clockwise.
Because various section of construction is similar, now by taking type section 2 as an example, the composition of six type sections is introduced.Type section 2 is by end plate 8, transverse direction
Ribbed stiffener 9, edge steel plate 10, longitudinal stiffener 11 (can be considered whether to add longitudinal stiffener according to geological condition), steel web
12 and round steel pipe tenon 13.
The selection width of end plate 8 is 300mm, and thickness is 10mm, highly the rectangular steel plates for 300mm；
The selection steel plate thickness of ribbed stiffener 9 is 10mm；
The selection width of edge steel plate 10 is 300mm, and thickness is 5mm, and radius is 5200mm, and arc length is 5445.2mm steel plates.
The selection steel plate thickness of longitudinal stiffener 11 is 10mm；
Steel plate width selected by steel web 12 is 300mm, and thickness is 8mm；
As shown in Figure 2,3, longitudinal and transverse ribbed stiffener has plurality of optional scheme according to tunnel surrounding situation, in this example, laterally
Type section 2 is divided into 6 equal portions by ribbed stiffener 9, and section is divided into 2 equal portions by longitudinal stiffener 11.
The utility model has and connected at six, because six attachment structures are identicals, now between type section 1 and type section 2
Attachment structure exemplified by be discussed in detail its composition.
As shown in figure 4, attachment structure of the present utility model, by round steel pipe tenon 13, round steel pipe tongue-and-groove 14, rectangular card
Hoop 15, square circular hole polystyrene foam block 16 and bolt 17 are constituted.
13 select overall diameter 200mm, and length is 300mm, and thickness is 10mm steel pipes, and its length for being deep into type section 2 is
150mm；
In order to be installed beneficial to initial stage, 14 internal diameters should be slightly larger than 13, so 14 be 203mm from interior diameter, length is
120mm；
15 select 10mm steel plates；
16 size is identical with square-section, and its Circularhole diameter is 203mm, and thickness is 80mm；
The model M30 of bolt 17.
During installation, 14 are inserted by 13；16, and 8 and 16 tight fits are accompanied between two end plates 8；Install 15；By bolt 17
Insert in 15 preformed holes and pretension.
After tools for bolts ' pretension, rectangle clip shrinks, when external force is acted on, and is produced between type section 1, type section 2 and rectangle clip 15
Frictional force；The pretightning force of regulating bolt 17, you can the maximum static friction force between control type section 1, type section 2 and rectangle clip 15；Will
Maximum static friction force control is within the 80% of 2 ultimate compressive bearing capacity smallers of type section 1 and type section；When type section 1,2 institutes of type section
When the external force born is more than maximum static friction force, type section 1 and type section 2 will be moved towards in rectangle clip 15.
Claims (2)
1. a kind of contractibility assembled steel board mount, includes the type section of multiple interconnections, the two ends respectively connection one of each type section
Individual sectional dimension identical end plate, it is characterised in that the attachment structure between adjacent type section include end plate described in two, with
It is rectangle clip, Elastic Block and bolt that two end plates are engaged, as follows：Two described end plates, one is provided with circular steel
Pipe tenon, another is provided with the round steel pipe tongue-and-groove coordinated with the tenon；The sectional dimension of described Elastic Block is little
In two end plates, it is placed between two end plates, and offer for the through hole through round steel pipe tenon；Opened on rectangle clip
Provided with bolt hole, for being bolted on outside two terminations.
2. stainless steel strut according to claim 1, it is characterised in that each type Duan Jun includes two edge steel plates and connection
Steel web between two edge steel plates, transverse stiffener and longitudinal stiffener are provided with edge steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720162331.4U CN206503608U (en) | 2017-02-22 | 2017-02-22 | A kind of contractibility assembled steel board mount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720162331.4U CN206503608U (en) | 2017-02-22 | 2017-02-22 | A kind of contractibility assembled steel board mount |
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| Publication Number | Publication Date |
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| CN206503608U true CN206503608U (en) | 2017-09-19 |
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| CN201720162331.4U Active CN206503608U (en) | 2017-02-22 | 2017-02-22 | A kind of contractibility assembled steel board mount |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677809A (en) * | 2017-02-22 | 2017-05-17 | 天津大学 | Contractible fabricated steel plate support |
| CN108643923A (en) * | 2018-04-23 | 2018-10-12 | 山东大学 | Tunnel partial excavation assembled arch and mechanized construction technique |
| CN110130942A (en) * | 2019-06-04 | 2019-08-16 | 江苏迅拓机械有限公司 | A kind of tunnel steel tube piece mounting structure |
| CN110847939A (en) * | 2019-12-10 | 2020-02-28 | 中铁第四勘察设计院集团有限公司 | Steel arch frame joint |
-
2017
- 2017-02-22 CN CN201720162331.4U patent/CN206503608U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677809A (en) * | 2017-02-22 | 2017-05-17 | 天津大学 | Contractible fabricated steel plate support |
| CN108643923A (en) * | 2018-04-23 | 2018-10-12 | 山东大学 | Tunnel partial excavation assembled arch and mechanized construction technique |
| CN108643923B (en) * | 2018-04-23 | 2020-08-25 | 山东大学 | Fabricated supporting structure and construction method using same |
| CN110130942A (en) * | 2019-06-04 | 2019-08-16 | 江苏迅拓机械有限公司 | A kind of tunnel steel tube piece mounting structure |
| CN110847939A (en) * | 2019-12-10 | 2020-02-28 | 中铁第四勘察设计院集团有限公司 | Steel arch frame joint |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 300350 District, Jinnan District, Tianjin Haihe Education Park, 135 beautiful road, Beiyang campus of Tianjin University Patentee after: Tianjin University Address before: 300072 Tianjin City, Nankai District Wei Jin Road No. 92 Patentee before: Tianjin University |
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| CP02 | Change in the address of a patent holder |