CN106401617A - Steel arch and joint thereof - Google Patents
Steel arch and joint thereof Download PDFInfo
- Publication number
- CN106401617A CN106401617A CN201610817353.XA CN201610817353A CN106401617A CN 106401617 A CN106401617 A CN 106401617A CN 201610817353 A CN201610817353 A CN 201610817353A CN 106401617 A CN106401617 A CN 106401617A
- Authority
- CN
- China
- Prior art keywords
- arch
- steel
- steelframe
- springing
- arch springing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
- E21D11/24—Knuckle joints or links between arch members
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
Abstract
The invention provides a steel arch and a joint thereof. The joint of the steel arch comprises a first outer arch foot and an inflected arch steel frame. A connecting part is arranged at the upper end of the first outer arch foot and used for being fixedly connected with a lower step steel frame. The inflected arch steel frame is welded to the side face of the first outer arch foot. The steel arch is provided with the joint of the steel arch. A traditional lower step steel frame is shortened to the position above the beveling connection elevation and replaced with the joint of the steel arch for connection, and the phenomenon that the connection part is wrapped with sprayed concrete can be avoided after simple wrapping protection; the using effect and operability of the joint of the steel arch are good, and the overall quality of a closed ring during tunnel construction is obviously improved; and construction operation is easy, and the application effect is extremely remarkable.
Description
Technical field
The invention mainly relates to Tunnel Engineering construction field, more particularly, to a kind of steel arch-shelf and steel arch Holder joint.
Background technology
In constructing tunnel, all using closure ring design, construction is many for first steel arch-shelf structure of weak surrounding rock paragraph
From top to bottom excavated using benching tunnelling method and closed, as depicted in figs. 1 and 2, in steel arch-shelf closure ring, tunnel bottom steel arch-shelf 1
Get out of a predicament or an embarrassing situation steelframe 11 and inverted arch steelframe 12, inverted arch steelframe 12 is connected to the side of steelframe 11 of getting out of a predicament or an embarrassing situation, and the mode of connection adopts
Double 6 sets of bolts are fixed or double 8 sets of bolts are fixedly connected.
In practice of construction, due to being excavated using benching tunnelling method, also corresponding segmentation is installed just to prop up closure ring, the mistake in construction
Difference will be accumulate to the connecting portion of get out of a predicament or an embarrassing situation steelframe 11 and inverted arch steelframe 12, in addition have in constructing tunnel many uncertain because
Situations such as element, such as a series of reasons such as surrouding rock deformation will lead to this position generation faulting of slab ends, need in this case to accomplish 6 holes
Or 8 holes, all align and complete bolt connection then, operation easier is very big.And in legs and feet of getting out of a predicament or an embarrassing situation excavate, its introversion
Angle setting Blasting Control difficulty is big, and legs and feet position is commonly backbreaks, and leaves a just hidden danger come to nothing behind, and leaves office in construction
When at the beginning of rank, the both sides first installed steelframe of getting out of a predicament or an embarrassing situation need to carry out gunite concrete, is pre-welded to the connection on steelframe of getting out of a predicament or an embarrassing situation
Plate 13 and bolt 14 are it is easy to be wrapped up by concrete, near and lead to the inverted arch steelframe 12 cannot connected formation closed loop, the such as company of need
Connect in addition it is also necessary to manually dig out the concrete of connecting plate 13 surface and behind, bolt 14 can be realized and tighten fixing operation.
It can be seen that, existing this steel arch-shelf design problem present in constructing tunnel is more universal, leads to much construct
During unit is constructed at the scene, directly cancel connecting plate and bolt, directly will get out of a predicament or an embarrassing situation steelframe and the welding of inverted arch steelframe, welding quality
Lead to substantially reduce with structural stability it is impossible to meet closure toroidal effect, security-hidden trouble is very big.
Content of the invention
The first object of the present invention is to provide a kind of implementation height, easily install and affected by constructing tunnel error less
Steel arch Holder joint.
The second object of the present invention is to provide a kind of implementation height, easily install and affected by constructing tunnel error less
Steel arch-shelf.
In order to realize the first object of the present invention, the present invention provides a kind of steel arch Holder joint, includes the first outer arch springing and faces upward
Arch steelframe, the upper end of the first outer arch springing is provided with connecting portion, and connecting portion is used for being fixedly connected with steelframe of getting out of a predicament or an embarrassing situation, inverted arch steelframe
It is welded on the side of the first outer arch springing.
From such scheme, by arranging steel arch Holder joint in the lower section of steelframe of getting out of a predicament or an embarrassing situation, and utilize the first outer arch springing
The connecting portion of upper end be fixedly connected with steelframe of getting out of a predicament or an embarrassing situation, and this steel arch Holder joint when mounted by inverted arch steelframe weld
It is connected on the side of the first outer arch springing, this programme can avoid the occurrence of the phenomenon that gunite concrete wraps up connecting portion, and changes biography
System is adjusted to and is vertically connected with the design of jointing of cutting sth. askew of getting out of a predicament or an embarrassing situation, this programme, and it is right to be easily accomplished in construction is got out of a predicament or an embarrassing situation
The protective measure of connecting portion, when connecting to the construction of inverted arch steelframe, completes to connect due to being welded in advance, therefore without artificial chisel
Go out large area concrete, and be vertically connected with and can effectively improve installation accuracy and speed, compared to traditional connected mode of cutting sth. askew, apply
The operability of work is stronger, and inverted arch steelframe and the first outer arch springing welding position all can concentrate on the welding of external process factory, its weldering
Connect quality, with respect to constructing tunnel team, there is higher guarantee.Comprehensive effect used above and operability etc. contrast, this programme
In steel arch Holder joint the total quality closing ring in constructing tunnel is significantly improved, and constructing operation is simple, application effect
Extremely notable.
Further scheme is, steel arch Holder joint also includes the second outer arch springing, and it is bowed out that the second outer arch springing is welded on first
On the side of foot, the second outer arch springing is located on the relative both sides of the first outer arch springing respectively with inverted arch steelframe.
Therefore, by setting up the second outer arch springing, and the second outer arch springing and inverted arch steelframe are located at respectively outside first
So that outer arch springing force structure is more stable on the relative both sides of arch springing.
Further scheme is, steel arch Holder joint also includes lower pading plate, outside the bottom and second of the first outer arch springing
The bottom of arch springing is connected with underlay Interal fixation.
Therefore, by the setting of lower pading plate, increase the force structure of arch springing weakness outside tunnel, reduce stress collection
In.
Further scheme is, connecting portion is junction steel plate, and junction steel plate is welded on the upper end of the first outer arch springing,
Multiple location holes are provided with junction steel plate.
Therefore, by the location hole of junction steel plate, screw bolt and nut be fixedly connected mode, it effectively improves installation
Accuracy and speed.
Further scheme is, is in an angle setting between the first outer arch springing and inverted arch steelframe.
Therefore, in angle, the first outer arch springing of setting and inverted arch steelframe, are connected by welding manner, compared to existing
Ground bolt fixed mode of cutting sth. askew, this case is conducive to improving structural stability it is ensured that closed loop effect.
In order to realize the second object of the present invention, the present invention provides a kind of steel arch-shelf, including steelframe and the steel arch-shelf of getting out of a predicament or an embarrassing situation
Joint, steel arch Holder joint includes the first outer arch springing and inverted arch steelframe, and the upper end of the first outer arch springing is provided with connecting portion, connecting portion
For being fixedly connected with steelframe of getting out of a predicament or an embarrassing situation, inverted arch steelframe is welded on the side of the first outer arch springing.
From such scheme, by arranging steel arch Holder joint in the lower section of steelframe of getting out of a predicament or an embarrassing situation, and utilize the first outer arch springing
The connecting portion of upper end be fixedly connected with steelframe of getting out of a predicament or an embarrassing situation, and this steel arch Holder joint when mounted by inverted arch steelframe weld
It is connected on the side of the first outer arch springing, this programme can avoid the occurrence of the phenomenon that gunite concrete wraps up connecting portion, and changes biography
System is adjusted to and is vertically connected with the design of jointing of cutting sth. askew of getting out of a predicament or an embarrassing situation, this programme, and it is right to be easily accomplished in construction is got out of a predicament or an embarrassing situation
The protective measure of connecting portion, when connecting to the construction of inverted arch steelframe, completes to connect due to being welded in advance, therefore without artificial chisel
Go out large area concrete, and be vertically connected with and can effectively improve installation accuracy and speed, compared to traditional connected mode of cutting sth. askew, apply
The operability of work is stronger, and inverted arch steelframe and the first outer arch springing welding position all can concentrate on the welding of external process factory, its weldering
Connect quality, with respect to constructing tunnel team, there is higher guarantee.Comprehensive effect used above and operability etc. contrast, this programme
In steel arch Holder joint the total quality closing ring in constructing tunnel is significantly improved, and constructing operation is simple, application effect
Extremely notable.
Further scheme is, connecting portion is the first junction steel plate, and the first junction steel plate is welded on the first outer arch springing
On upper end, the first junction steel plate is provided with multiple first location holes, the bottom of steelframe of getting out of a predicament or an embarrassing situation is provided with the second connection
Steel plate, the second junction steel plate is provided with multiple second location holes, and bolt passes through the first location hole, the second location hole and nut solid
Fixed connection.
Further scheme is, the first outer arch springing and steelframe of getting out of a predicament or an embarrassing situation are arranged along a straight line, the first outer arch springing and inverted arch
It is in an angle setting between steelframe.
Therefore, get out of a predicament or an embarrassing situation steelframe and the first outer arch springing pass through junction steel plate, are fixedly connected, thereon screw bolt and nut
Lower connected mode can effectively improve installation accuracy and speed, and the first outer arch springing arrange along a straight line with steelframe of getting out of a predicament or an embarrassing situation so that
The uniform force of whole steel arch-shelf, reduces stress concentration.
Brief description
Fig. 1 is the structural representation of existing steel arch-shelf.
Fig. 2 is the enlarged drawing at A in Fig. 1.
Fig. 3 is the structural representation of steel arch-shelf joint in steel arch-shelf embodiment of the present invention.
Below in conjunction with drawings and Examples, the invention will be further described.
Specific embodiment
With reference to Fig. 3, Fig. 3 is the structural representation of steel arch-shelf joint in steel arch-shelf.Steel arch-shelf includes steelframe 4 He of getting out of a predicament or an embarrassing situation
Steel arch Holder joint, steel arch Holder joint is in, at the overall both sides of steel arch-shelf, being used for being connected to get out of a predicament or an embarrassing situation steelframe 4 and inverted arch steelframe
Between.
Steel arch Holder joint includes the first outer arch springing 1, the second outer arch springing 2, inverted arch steelframe 3 and lower pading plate 12, and first is bowed out
Foot 1, the second outer arch springing 2, inverted arch steelframe 3 and steelframe 4 of getting out of a predicament or an embarrassing situation are all using I-steel.The upper end of the first outer arch springing 1 is provided with
Connecting portion, connecting portion is the junction steel plate 14 being welded on the first outer arch springing 1 upper end, and junction steel plate 14 is circumferentially uniformly upper to be arranged
There are multiple location holes, be provided with bolt 51 in a location hole, between junction steel plate 14 and the first outer arch springing 1, be also welded with two
Angle steel 13, two angle steel 13 are welded on the both sides of the first outer arch springing 1.
The upper end of the second outer arch springing 2 is welded on the side of the first outer arch springing 1, the second outer arch springing 2 and the first outer arch springing 1
Between angle at an acute angle setting, the bottom of the first outer arch springing 1, the bottom of the second outer arch springing 2 welded with lower pading plate 12, and
It is connected between the first outer arch springing 1 and lower pading plate 12 using the angle steel 11 of both sides.Angle steel 21 using both sides is connected to first
Between outer arch springing 2 and lower pading plate 12.Surround triangle between first outer arch springing 1, the second outer arch springing 2 and lower pading plate 12 and consolidate knot
Structure.
Inverted arch steelframe 3 is welded on the side of the first outer arch springing 1, and the second outer arch springing 2 and inverted arch steelframe 3 are located at respectively first
On the relative both sides of outer arch springing 1, and it is connected between the first outer arch springing 1 and inverted arch steelframe 3 using the angle steel 31 of both sides, outside first
Setting at an acute angle between arch springing 1 and inverted arch steelframe 3.
The get out of a predicament or an embarrassing situation bottom of steelframe 4 is welded with junction steel plate 42, junction steel plate 42 circumferentially uniformly on be provided with multiple
Location hole, junction steel plate 42 and get out of a predicament or an embarrassing situation and be also welded with two angle steel 41 between steelframe 4, two angle steel 41 are welded on steel of getting out of a predicament or an embarrassing situation
On the both sides of frame 4.When steelframe 4 of getting out of a predicament or an embarrassing situation is connected with the first outer arch springing 1, bolt 51 passes through two location holes and nut 52 fixing even
Connect, after connection, the first outer arch springing 1 and steelframe 3 of getting out of a predicament or an embarrassing situation are arranged along a straight line.
By arranging steel arch Holder joint, and the connecting portion of the upper end using the first outer arch springing in the lower section of steelframe of getting out of a predicament or an embarrassing situation
Steelframe is fixedly connected with getting out of a predicament or an embarrassing situation, and inverted arch steelframe is welded on the first outer arch springing by this steel arch Holder joint when mounted
Side, this programme can avoid the occurrence of the phenomenon that gunite concrete wraps up connecting portion, and changes tradition and the company of cutting sth. askew of getting out of a predicament or an embarrassing situation
The design of joint, this programme is adjusted to and is vertically connected with, and can be easily accomplished the protective measure to connecting portion in construction is got out of a predicament or an embarrassing situation,
When connecting to the construction of inverted arch steelframe, complete to connect due to being welded in advance, therefore manually need not dig out large area concrete, and
It is vertically connected with and can effectively improve installation accuracy and speed, compared to traditional connected mode of cutting sth. askew, the operability of construction is stronger,
Simultaneously because there being many uncertain factors such as surrouding rock deformation etc. in constructing tunnel, even if get out of a predicament or an embarrassing situation steelframe and the first outer arch springing due to
Dislocation lead to not be suitable for bolt fix, and due to be dock up and down thus can using weld by the way of be also can the company of completing
Connect, it is more reliable compared to connected mode stress of cutting sth. askew to be vertically connected with mode, and inverted arch steelframe and the first outer arch springing welding position
The welding of external process factory all can be concentrated on, its welding quality has higher guarantee with respect to constructing tunnel team.Make more than comprehensive
Contrasted with effect and operability etc., the steel arch Holder joint in this programme has substantially to the total quality closing ring in constructing tunnel
Improve, and constructing operation is simple, application effect is extremely notable.
Above-described embodiment is presently preferred embodiments of the present invention, in actual applications can be real according to actual tunnel construction requirement
Existing more evolutions, the angle of such as the second outer arch springing, inverted arch steelframe and the first outer arch springing can be arranged according to practice of construction demand, such as
Vertical an angle of 90 degrees or obtuse angle etc., the conversion of angle is all capable of the purpose of the present invention.
Claims (10)
1. steel arch Holder joint is it is characterised in that include：
First outer arch springing, the upper end of described first outer arch springing is provided with connecting portion, and described connecting portion is used for and steelframe of getting out of a predicament or an embarrassing situation
It is fixedly connected；
Inverted arch steelframe, described inverted arch steelframe is welded on the side of the described first outer arch springing.
2. steel arch Holder joint according to claim 1 it is characterised in that：
Described steel arch Holder joint also includes the second outer arch springing, and described second outer arch springing is welded on the side of the described first outer arch springing
On, described second outer arch springing is located on the relative both sides of the described first outer arch springing respectively with described inverted arch steelframe.
3. steel arch Holder joint according to claim 2 it is characterised in that：
Described steel arch Holder joint also includes lower pading plate, the lower end of the bottom of described first outer arch springing and described second outer arch springing
Portion is connected with described underlay Interal fixation.
4. steel arch Holder joint according to claim 1 it is characterised in that：
Described connecting portion is junction steel plate, and described junction steel plate is welded on the upper end of the described first outer arch springing, described connection
Multiple location holes are provided with steel plate.
5. the steel arch Holder joint according to any one of Claims 1-4 it is characterised in that：
It is in an angle setting between described first outer arch springing and described inverted arch steelframe.
6. steel arch-shelf is it is characterised in that include getting out of a predicament or an embarrassing situation steelframe and steel arch Holder joint, described steel arch Holder joint includes：
First outer arch springing, the upper end of described first outer arch springing is provided with connecting portion, and described connecting portion is used for getting out of a predicament or an embarrassing situation with described
Steelframe is fixedly connected；
Inverted arch steelframe, described inverted arch steelframe is welded on the side of the described first outer arch springing.
7. steel arch-shelf according to claim 6 it is characterised in that：
Described steel arch Holder joint also includes the second outer arch springing, and described second outer arch springing is welded on the side of the described first outer arch springing
On, described second outer arch springing is located on the relative both sides of the described first outer arch springing respectively with described inverted arch steelframe.
8. steel arch-shelf according to claim 7 it is characterised in that：
Described steel arch Holder joint also includes lower pading plate, the lower end of the bottom of described first outer arch springing and described second outer arch springing
Portion is connected with described underlay Interal fixation.
9. steel arch-shelf according to claim 6 it is characterised in that：
Described connecting portion is the first junction steel plate, and described first junction steel plate is welded on the upper end of the described first outer arch springing,
Multiple first location holes are provided with described first junction steel plate；
The bottom of described steelframe of getting out of a predicament or an embarrassing situation is provided with the second junction steel plate, and described second junction steel plate is provided with multiple second
Location hole；
Bolt passes through described first location hole, described second location hole to be fixedly connected with nut.
10. the steel arch-shelf according to any one of claim 6 to 9 it is characterised in that：
Described first outer arch springing and described steelframe of getting out of a predicament or an embarrassing situation are arranged along a straight line；
It is in an angle setting between described first outer arch springing and described inverted arch steelframe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610817353.XA CN106401617B (en) | 2016-09-12 | 2016-09-12 | Steel arch-shelf and its connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610817353.XA CN106401617B (en) | 2016-09-12 | 2016-09-12 | Steel arch-shelf and its connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106401617A true CN106401617A (en) | 2017-02-15 |
| CN106401617B CN106401617B (en) | 2019-02-05 |
Family
ID=57999085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610817353.XA Active CN106401617B (en) | 2016-09-12 | 2016-09-12 | Steel arch-shelf and its connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106401617B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318785A (en) * | 2019-08-01 | 2019-10-11 | 中铁二院成都勘察设计研究院有限责任公司 | A kind of steelframe and its construction method based on tunnel machine full face tunneling |
| CN111622786A (en) * | 2020-06-05 | 2020-09-04 | 中铁十二局集团有限公司 | Arch connecting plate angle positioning device and angle positioning method |
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| CN201810323U (en) * | 2010-10-21 | 2011-04-27 | 中铁三局集团有限公司 | Bolt connection plate for connecting tunnel inverted arch steel frame with arch angle steel frame |
| CN201810324U (en) * | 2010-10-21 | 2011-04-27 | 中铁三局集团有限公司 | Steel frame for supporting and protecting lower part of middle separation wall in early tunnel period |
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| CN203394544U (en) * | 2013-08-02 | 2014-01-15 | 江苏中设工程咨询集团有限公司 | Large-span mountain tunnel lagging jack with supporting legs |
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| JP2016132961A (en) * | 2015-01-22 | 2016-07-25 | 清水建設株式会社 | Structure of tunnel steel timbering |
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| CN201810323U (en) * | 2010-10-21 | 2011-04-27 | 中铁三局集团有限公司 | Bolt connection plate for connecting tunnel inverted arch steel frame with arch angle steel frame |
| CN201810324U (en) * | 2010-10-21 | 2011-04-27 | 中铁三局集团有限公司 | Steel frame for supporting and protecting lower part of middle separation wall in early tunnel period |
| CN203394544U (en) * | 2013-08-02 | 2014-01-15 | 江苏中设工程咨询集团有限公司 | Large-span mountain tunnel lagging jack with supporting legs |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318785A (en) * | 2019-08-01 | 2019-10-11 | 中铁二院成都勘察设计研究院有限责任公司 | A kind of steelframe and its construction method based on tunnel machine full face tunneling |
| CN111622786A (en) * | 2020-06-05 | 2020-09-04 | 中铁十二局集团有限公司 | Arch connecting plate angle positioning device and angle positioning method |
| CN111622786B (en) * | 2020-06-05 | 2022-06-14 | 中铁十二局集团有限公司 | Arch connecting plate angle positioning device and angle positioning method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106401617B (en) | 2019-02-05 |
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