CN206571505U - A kind of tunnel inverted arch bracing means - Google Patents
A kind of tunnel inverted arch bracing means Download PDFInfo
- Publication number
- CN206571505U CN206571505U CN201720250223.2U CN201720250223U CN206571505U CN 206571505 U CN206571505 U CN 206571505U CN 201720250223 U CN201720250223 U CN 201720250223U CN 206571505 U CN206571505 U CN 206571505U
- Authority
- CN
- China
- Prior art keywords
- tunnel
- inverted arch
- bracing means
- bow member
- brace
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of tunnel inverted arch bracing means, including combined steel bow member and pouring in the concrete layer on the combined steel bow member, the combined steel bow member includes cross-brace, bearing and connection support, and cross-brace is circumferentially extending along the section in tunnel；Two bearings are connected to the two ends of the cross-brace；Connection support one end is connected with the bearing, the first branch bow member connection in the other end and tunnel.Supporting intensity is high, can improve liner structure total bearing capacity and stability, operative constraint tunnel lateral direction convergent deformation；Compared with replacing inverted arch method and setting up inverted arch method, low engineering cost, construction speed are fast, influence small to tunnel normal operation, and processing is simply, easy for installation, and a road pavement protuberance crushed element is repaired, cost-effective.
Description
Technical field
The utility model is related to vcehicular tunnel reinforcement technique field, more particularly to a kind of tunnel inverted arch bracing means.
Background technology
The vcehicular tunnel built in high-ground stress or Expansive Rock Regions after being open to traffic through often there are various Structural defects,
Wherein road hump deformation is one of Common Diseases.Tunnel inverted arch craze and transfiguration or being not provided with inverted arch may cause road surface grand
Rise, destroy tunnel lining structure, tunnel overall collapse may be caused when serious, jeopardizes operation security.Work as road hump
After deformation, frequently with displacement inverted arch method or set up inverted arch method at present and punished, but these method and technology flows are complicated, construction hardly possible
Degree is big, construction speed is slow, engineering cost is high, block traffic time long, hampers the normal operation of highway, causes larger economic damage
Lose and social influence.
Utility model content
The purpose of this utility model is to provide a kind of tunnel inverted arch bracing means, to solve skill present in prior art
Art flow is complicated, difficulty of construction is big, construction speed is slow, engineering cost is high, the technical problem of blocking traffic time length.
As above conceive, the technical scheme that the utility model is used is：
A kind of tunnel inverted arch bracing means, including combined steel bow member and pour in the coagulation on the combined steel bow member
Soil layer, the combined steel bow member includes：
Cross-brace, it is circumferentially extending along the section in tunnel；
Bearing, two bearings are connected to the two ends of the cross-brace；
Connection support, its one end is connected with the bearing, the first branch bow member connection in the other end and tunnel.
Wherein, the bearing is welded in echelon using four blocks of steel plates, including the short side steel plate and long side steel plate being parallel to each other
And connect two side steel plates of the short side steel plate and long side steel plate.
Wherein, the long side steel plate is connected with the cross-brace.
Wherein, the connection support includes three shaped steel, one end of three shaped steel respectively with the short side steel plate and
Two side steel plate connections, the other end is welded with the just branch bow member.Two side steel plates can be designed relative according to actual demands of engineering
It is applied widely in the angle of long side steel plate.
Wherein, between the cross-brace and bearing, connected between the bearing and connection support using high-strength bolt.
Wherein, the concrete layer includes the thick section in two ends, middle light filling bar and from the thick section in the two ends to the intermediate thin
The changeover portion of section gradually transition.Ensure to form closing bearing structure with the existing first branch bow member in tunnel, two linings.
Wherein, the middle light filling bar is identical with the two thickness of the liner degree in tunnel.
Wherein, the combined steel bow member is longitudinal uniform intervals distribution multiple and along tunnel.
Wherein, the cross-brace is made of I22a shaped steel.
Wherein, the connection support is made of I18 shaped steel.
The utility model proposes tunnel inverted arch bracing means, closed bearing structure, supporting intensity is high, can improve lining cutting
Structure total bearing capacity and stability, operative constraint tunnel lateral direction convergent deformation；Compared with replacing inverted arch method and setting up inverted arch method,
Low engineering cost, construction speed are fast, influence small to tunnel normal operation, and processing is simple, easy for installation, a road pavement protuberance deformation
Part is repaired, cost-effective.
Brief description of the drawings
Fig. 1 is the overlooking the structure diagram for the tunnel inverted arch bracing means that the utility model is provided；
Fig. 2 is the side structure schematic view for the tunnel inverted arch bracing means that the utility model is provided.
In figure：
1st, combined steel bow member；2nd, concrete layer；3rd, first branch bow member；4th, two lining；
11st, cross-brace；12nd, bearing；13rd, connection support.
Embodiment
To make the utility model technical problem solved, the technical scheme used and the technique effect reached clearer,
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by embodiment.
Referring to Fig. 1 and Fig. 2, a kind of tunnel inverted arch bracing means, including combined steel bow member 1 and pour in combined type steel arch
Concrete layer 2 on frame 1, combined steel bow member 1 includes cross-brace 11, bearing 12 and connection support 13.Two combined steels
Spacing between bow member 1 is determined according to tunnel actual conditions.
Cross-brace 11 is circumferentially extending along the section in tunnel；The two ends of cross-brace 11 are welded with reserved four bolts hole
Steel plate.In the present embodiment, cross-brace 11 sets one, saves material.
Two bearings 12 are connected to the two ends of cross-brace 11；Bearing 12 in echelon, is wrapped using four pieces of steel plate welding
Include the short side steel plate that is parallel to each other and it is long in steel plate and connection short side steel plate and it is long while steel plate two side steel plates.Every block of steel plate
On be reserved with four corresponding bolts hole.Wherein, long side steel plate is connected with cross-brace 11.
13 one end of connection support are connected with bearing 12, the first firm welding of branch bow member 3 in the other end and tunnel, overall stress,
Increase stability.Connection support 13 includes three shaped steel, and one end of three shaped steel connects with short side steel plate and two side steel plates respectively
Connect, the other end is welded with first branch bow member 3.The spacing of 13 terminations of connection support is identical with the first spacing of branch bow member 3.Can be real according to engineering
Border needs, the angle between two side steel plates of design and long side steel plate, applied widely.
Between cross-brace 11 and bearing 12, bearing 12 and connection support 13 between using high-strength bolt connect.Assembling
Flexibly and easily, it is easily installed dismounting.Low engineering cost, construction speed are fast, influence small to tunnel normal operation, and processing is simple, peace
Dress is convenient, and a road pavement protuberance crushed element is repaired, cost-effective.
Concrete layer 2 includes the thick section in two ends, middle light filling bar and from the thick section in two ends to the transition of middle light filling bar gradually transition
Section.During Specific construction, cut the concrete of surface deformation part, combined steel bow member 1 be installed, after the completion of cast in situs inverted arch mix
Solidifying soil.Middle light filling bar is identical with two 4 thickness of lining in tunnel, and the junction stress of connection support 13 and first branch bow member 3 is larger, therefore
Increase is needed to pour thickness, it is ensured that existing first branch bow member 3, two lining 4 forms closing bearing structure with tunnel, supporting intensity is high,
Liner structure total bearing capacity and stability, operative constraint tunnel lateral direction convergent deformation can be improved.Improve top supporting construction
Stress condition, on the one hand effectively passed by the strata pressure on tunnel top by tunnel side wall structure or by the load on road surface
Underground is delivered to, the counter-force that tunnel understratum is transmitted on the other hand can also be effectively resisted.
In the present embodiment, combined steel bow member is longitudinal uniform intervals distribution multiple and along tunnel.Cross-brace 11
It is made of I22a shaped steel.Connection support 13 is made of I18 shaped steel.
Embodiment of above is to elaborate general principle of the present utility model and characteristic, and the utility model is not by above-mentioned reality
The mode of applying is limited, and on the premise of the utility model spirit and scope are not departed from, the utility model also has various change and change,
These changes and modifications are both fallen within the range of claimed the utility model.Scope is claimed by appended in the utility model
Claims and its equivalent thereof.
Claims (10)
1. a kind of tunnel inverted arch bracing means, it is characterised in that including combined steel bow member and pour in the combined type steel arch
Concrete layer on frame, the combined steel bow member includes：
Cross-brace, it is circumferentially extending along the section in tunnel；
Bearing, two bearings are connected to the two ends of the cross-brace；
Connection support, its one end is connected with the bearing, the first branch bow member connection in the other end and tunnel.
2. inverted arch bracing means in tunnel according to claim 1, it is characterised in that the bearing is using four pieces of steel plate welding
In echelon, including the short side steel plate that is parallel to each other and it is long in steel plate and the connection short side steel plate and it is long while steel plate two sides
Steel plate.
3. inverted arch bracing means in tunnel according to claim 2, it is characterised in that the long side steel plate is laterally propped up with described
Support connection.
4. inverted arch bracing means in tunnel according to claim 2, it is characterised in that the connection support includes three types
Steel, one end of three shaped steel is connected with the short side steel plate and two side steel plates respectively, the other end and the just branch bow member
Welding.
5. inverted arch bracing means in tunnel according to claim 1, it is characterised in that between the cross-brace and bearing,
Connected between the bearing and connection support using high-strength bolt.
6. inverted arch bracing means in tunnel according to claim 1, it is characterised in that it is thick that the concrete layer includes two ends
Section, middle light filling bar and from the thick section in the two ends to the changeover portion of the middle light filling bar gradually transition.
7. inverted arch bracing means in tunnel according to claim 6, it is characterised in that two linings of the middle light filling bar and tunnel
Thickness is identical.
8. inverted arch bracing means in tunnel according to claim 1, it is characterised in that the combined steel bow member for it is multiple simultaneously
It is distributed along longitudinal uniform intervals in tunnel.
9. inverted arch bracing means in tunnel according to claim 1, it is characterised in that the cross-brace uses I22a shaped steel
It is made.
10. inverted arch bracing means in tunnel according to claim 1, it is characterised in that the connection support uses I18 shaped steel
It is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720250223.2U CN206571505U (en) | 2017-03-15 | 2017-03-15 | A kind of tunnel inverted arch bracing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720250223.2U CN206571505U (en) | 2017-03-15 | 2017-03-15 | A kind of tunnel inverted arch bracing means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206571505U true CN206571505U (en) | 2017-10-20 |
Family
ID=60055198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720250223.2U Expired - Fee Related CN206571505U (en) | 2017-03-15 | 2017-03-15 | A kind of tunnel inverted arch bracing means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206571505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577334A (en) * | 2020-05-20 | 2020-08-25 | 招商局重庆交通科研设计院有限公司 | Operating tunnel inverted arch repairing method |
-
2017
- 2017-03-15 CN CN201720250223.2U patent/CN206571505U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577334A (en) * | 2020-05-20 | 2020-08-25 | 招商局重庆交通科研设计院有限公司 | Operating tunnel inverted arch repairing method |
| CN111577334B (en) * | 2020-05-20 | 2022-05-17 | 招商局重庆交通科研设计院有限公司 | Operating tunnel inverted arch repairing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171020 Termination date: 20180315 |