CN102606174A - Four-direction connection box for lagging jacks - Google Patents
Four-direction connection box for lagging jacks Download PDFInfo
- Publication number
- CN102606174A CN102606174A CN2012101130501A CN201210113050A CN102606174A CN 102606174 A CN102606174 A CN 102606174A CN 2012101130501 A CN2012101130501 A CN 2012101130501A CN 201210113050 A CN201210113050 A CN 201210113050A CN 102606174 A CN102606174 A CN 102606174A
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- CN
- China
- Prior art keywords
- bow member
- junction plate
- connection plate
- preliminary bracing
- steel support
- 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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- Bridges Or Land Bridges (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention belongs to the technical field of tunnel construction, and provides a four-direction connection box for lagging jacks. The four-direction connection box for the lagging jacks comprises two cambered plates (12) and four connection plates, namely a connection plate I (8) connected with an outer-layer preliminary supporting lagging jack, a connection plate II (9) connected with a temporary steel support as well as a connection plate III (10) and a connection plate IV (11) which are connected with an inner-layer preliminary supporting lagging jack, wherein the connection plate I (8) and the connection plate II (9) are positioned on the inner sides and outer sides of the two cambered plates (12); and the connection plate III (10) and the connection plate IV (11) are positioned at the upper ends and lower ends of the two cambered plates. Under the condition that a stressed system consisting of the outer-layer preliminary supporting lagging jack and the temporary steel support is not damaged, the inner-layer preliminary supporting lagging jack is erected; and the four-direction connection box has the characteristics of high safety performance and convenience in operation.
Description
Technical field
The invention belongs to the tunnel construction technology field, relate generally to a kind of bow member four-way connecting box.
Background technology
At present, the tunnel preliminary bracing is mostly two-layer or multilayer bow member+sprayed mortar structure is formed, and in the tunnel excavation process, is provided with temporary steel support; How to guarantee that preliminary bracing bow member and smooth connection between the temporary steel support are the key factors of safety for tunnel engineering.Traditional connected mode is to be connected with temporary steel support immediately after outer preliminary bracing bow member sets up completion; When setting up internal layer preliminary bracing bow member, earlier temporary steel support is separated with outer preliminary bracing bow member, treat again temporary steel support and internal layer preliminary bracing bow member to be linked together after internal layer preliminary bracing bow member has set up.Traditional method bring great hidden danger to safety for tunnel engineering, and efficiency of construction is lower owing to will remove temporary steel support earlier before setting up internal layer preliminary bracing bow member.
Summary of the invention
In order to overcome the deficiency of prior art middle arch rack connected mode, the objective of the invention is to propose a kind of bow member four-way connecting box.
The present invention adopts following technical scheme for accomplishing the foregoing invention task:
A kind of bow member four-way connecting box, described bow member four-way connecting box includes two arcs and four junction plates; Described four junction plates are respectively: in order to the junction plate I that is connected with outer preliminary bracing bow member, junction plate II and junction plate III, the junction plate IV in order to be connected with internal layer preliminary bracing bow member in order to be connected with temporary steel support; Described junction plate I, junction plate II are positioned at the inside and outside both sides of two arcs, and described junction plate III, junction plate IV are positioned at the two ends up and down of two arcs.
The use of described bow member four-way connecting box is: after the installation of outer preliminary bracing bow member, bow member four-way connecting box is connected one with outer preliminary bracing bow member, again bow member four-way connecting box is connected one with temporary steel support; When internal layer preliminary bracing bow member is installed, directly internal layer preliminary bracing bow member is connected with bow member four-way connecting box and get final product.
A kind of bow member four-way connecting box that the present invention proposes; Overcome the deficiency of prior art middle arch rack connected mode; Under the situation of not destroying outer preliminary bracing bow member and the formed stress system of temporary steel support; Carry out setting up of internal layer preliminary bracing bow member, have security performance height, convenience operation.
Description of drawings
Fig. 1 is user mode figure of the present invention.
Among the figure: 1, outer preliminary bracing bow member, 2, temporary steel support, 3, bow member four-way connecting box; 4, internal layer preliminary bracing bow member, 5, outer preliminary bracing bow member junction plate, 6, internal layer preliminary bracing bow member junction plate; 7, temporary steel support junction plate, 8, the junction plate I, 9, the junction plate II; 10, junction plate III, 11, the junction plate IV, 12, arc.
The specific embodiment
In conjunction with accompanying drawing and specific embodiment the present invention is explained;
As shown in Figure 1, a kind of bow member four-way connecting box, described bow member four-way connecting box is arranged between outer preliminary bracing bow member 1 and the temporary steel support 2; Include two arcs 12 and four junction plates; Described four junction plates are respectively: in order to the junction plate I 8 that is connected with outer preliminary bracing bow member 1, junction plate II 9 and junction plate III 10, the junction plate IV 11 in order to be connected with internal layer preliminary bracing bow member 4 in order to be connected with temporary steel support 2; Described junction plate I 8, junction plate II 9 are positioned at the inside and outside both sides of two arcs 12, and described junction plate III 10, junction plate IV 11 are positioned at the two ends up and down of two arcs 12.
The present invention in use; After outer preliminary bracing bow member 1 installation; Use high-strength bolt that the junction plate I 8 of bow member four-way connecting box 3 is connected one with outer preliminary bracing bow member junction plate 5, pass through high-strength bolt again the junction plate II 9 of bow member four-way connecting box 3 is connected one with temporary steel support junction plate 7; When internal layer preliminary bracing bow member 4 is installed, through high-strength bolt internal layer preliminary bracing junction plate 6 is connected with junction plate III 10, the junction plate IV 11 of bow member four-way connecting box and to get final product.Under the situation of not removing already installed temporary steel support 2, still can reach the purpose of smooth installation internal layer preliminary bracing bow member 4 like this.
Claims (1)
1. bow member four-way connecting box, it is characterized in that: described bow member four-way connecting box includes two arcs (12) and four junction plates; Described four junction plates are respectively: in order to the junction plate I (8) that is connected with outer preliminary bracing bow member (1), junction plate II (9) and junction plate III (10), the junction plate IV (11) in order to be connected with internal layer preliminary bracing bow member (4) in order to be connected with temporary steel support (2); Described junction plate I (8), junction plate II (9) are positioned at the inside and outside both sides of two arcs (12), and described junction plate III (10), junction plate IV (11) are positioned at the two ends up and down of two arcs (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210113050.1A CN102606174B (en) | 2012-04-18 | 2012-04-18 | Four-direction connection box for lagging jacks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210113050.1A CN102606174B (en) | 2012-04-18 | 2012-04-18 | Four-direction connection box for lagging jacks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102606174A true CN102606174A (en) | 2012-07-25 |
| CN102606174B CN102606174B (en) | 2014-07-02 |
Family
ID=46523894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210113050.1A Expired - Fee Related CN102606174B (en) | 2012-04-18 | 2012-04-18 | Four-direction connection box for lagging jacks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102606174B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0092307A1 (en) * | 1982-03-24 | 1983-10-26 | Caledonian Mining Company Limited | Improvements in and relating to support arches for colliery tunnels |
| CN101832141A (en) * | 2009-03-11 | 2010-09-15 | 中铁十三局集团有限公司 | Method for connecting temporary supports of tunnel |
| 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 |
| CN202578717U (en) * | 2012-04-18 | 2012-12-05 | 中铁隧道股份有限公司 | Four-direction connection box for arch frame |
-
2012
- 2012-04-18 CN CN201210113050.1A patent/CN102606174B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0092307A1 (en) * | 1982-03-24 | 1983-10-26 | Caledonian Mining Company Limited | Improvements in and relating to support arches for colliery tunnels |
| CN101832141A (en) * | 2009-03-11 | 2010-09-15 | 中铁十三局集团有限公司 | Method for connecting temporary supports of tunnel |
| 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 |
| CN202578717U (en) * | 2012-04-18 | 2012-12-05 | 中铁隧道股份有限公司 | Four-direction connection box for arch frame |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102606174B (en) | 2014-07-02 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 |
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| CF01 | Termination of patent right due to non-payment of annual fee |