CN101832141A - Method for connecting temporary supports of tunnel - Google Patents

Method for connecting temporary supports of tunnel Download PDF

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Publication number
CN101832141A
CN101832141A CN200910066613A CN200910066613A CN101832141A CN 101832141 A CN101832141 A CN 101832141A CN 200910066613 A CN200910066613 A CN 200910066613A CN 200910066613 A CN200910066613 A CN 200910066613A CN 101832141 A CN101832141 A CN 101832141A
Authority
CN
China
Prior art keywords
temporary
tunnel
interim
support
supports
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.)
Pending
Application number
CN200910066613A
Other languages
Chinese (zh)
Inventor
李向海
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway 13th Bureau Group Co Ltd
Original Assignee
China Railway 13th Bureau Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Railway 13th Bureau Group Co Ltd filed Critical China Railway 13th Bureau Group Co Ltd
Priority to CN200910066613A priority Critical patent/CN101832141A/en
Publication of CN101832141A publication Critical patent/CN101832141A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a method for connecting temporary supports of a tunnel, which belongs to the technical field of the construction of road, railway and urban subway tunnels. The method is to change the connection mode of temporary support H-shaped steels and the connection mode of the temporary support H-shaped steel and primary support H-shaped steel into an angular flange disc connection mode. The method has the following advantage that the improvement of the connection mode of temporary supports accelerates the installation speed of the temporary supports, reduces the labor intensity of workmen, greatly increases the reusing rate of the temporary supports, reduces construction cost and improves labor productivity.

Description

A kind of method for connecting temporary supports of tunnel
Technical field
The invention belongs to highway, railway, city underground tunnel construction technical field.
Background technology
In present domestic constructing tunnel, the median septum method of employing and the construction of double side wall pilot tunnel method, i iron is all adopted in interim support, and employing flange plate bolt each other connects; After tunnel excavation is finished, support interaction force temporarily and should not remove more greatly, remove and all will adopt gas cutting to cut, cause the i iron recycling rate of waterused of interim support very low like this, cause the increase of construction cost.As adopt a kind of novel interim pivot flange dish type of attachment: the axis of flange and i iron by former vertical mode, is become the oblique mode, on flange, increase the dismounting that alignment pin improves the force transferring structure of flange and is convenient to bolt.Adopt as above technology, what just can solve interim support effectively should not remove problem, guarantees the interim repeatedly recycling of supporting i iron simultaneously, and the energy accelerating construction progress reduces construction cost, raises labour productivity.
Summary of the invention
The objective of the invention is: a kind of method for connecting temporary supports of tunnel is provided, and it can remove interim support fast, and can reuse.
Technical scheme of the present invention is: will support between the i iron connected mode temporarily and change into the oblique flange with the connected mode of preliminary bracing i iron and be connected with the interim i iron that supports.
Being equipped with alignment pin on the interim oblique flange that supports between i iron fixes.
The invention has the beneficial effects as follows: by improving the connected mode of interim support, accelerated the installation rate of interim support, reduced working strength of workers, greatly increased the recycling rate of waterused of interim support, reduced construction cost, improved labor productivity.
Description of drawings
Fig. 1 is an interim pivot flange dish connected mode in the present domestic constructing tunnel;
Fig. 2 is the present invention's interim pivot flange dish connected mode in constructing tunnel;
Fig. 3 is preliminary bracing and a temporary lining connected mode in the present domestic constructing tunnel;
Fig. 4 is the present invention's preliminary bracing and temporary lining connected mode in constructing tunnel;
Fig. 5 is temporary lining and a temporary lining connected mode in the present domestic constructing tunnel;
Fig. 6 is the present invention's temporary lining and temporary lining connected mode in constructing tunnel;
Fig. 7 is a flange plate structure front view of the present invention.
The specific embodiment
Embodiment 1
As shown in Figure 1, 2, the 1st, preliminary bracing, the 2nd, temporary lining, the 3rd, temporary lining and preliminary bracing flange contact, the 4th, flange contact between temporary lining.
As shown in Figure 7, the 5th, i iron, the 6th, bolt hole, the 7th, dowel hole, the 8th, flange.
In constructing tunnel, be that example illustrates advantage of the present invention with the median septum method.In the connected mode of existing interim support as shown in Figure 1, interim support with the existing connected mode of preliminary bracing as shown in Figure 3, this connected mode is when interim supporting removal, because shank of bolt can not be extracted out, and support does not have rotation space temporarily, is difficult for removing, and what adopt gas cutting to cut off.As adopt device shown in Figure 4, and bolt connecting mode is inverted, nut is welded on the flange side of preliminary bracing, so just can remove shank of bolt.
Fig. 5 is the interim connected mode commonly used that supports between i iron, when removing interim the support, very difficult, and the interim i iron breakage rate that supports is very high, increase construction cost, and adopted connected mode of the present invention shown in Figure 6, changed flange and i iron normal angle, increase dowel device simultaneously, so interim support just can be removed very easily.Because the change of flange angle, dowel device guarantee that the i iron force transferring structure does not change, and can guarantee that also the connecting bolt of flange can be removed easily, nut if can be welded on the flange, more can shorten the peace of interim support and tear the time open.Fig. 7 is the arrangement detail of flange upper bolt hole and dowel hole.

Claims (2)

1. method for connecting temporary supports of tunnel, its method is: will support between the i iron connected mode temporarily and change into the oblique flange with the connected mode of preliminary bracing i iron and be connected with the interim i iron that supports.
2. a kind of method for connecting temporary supports of tunnel according to claim 1, its method is: be equipped with alignment pin and fix on the interim oblique flange that supports between i iron.
CN200910066613A 2009-03-11 2009-03-11 Method for connecting temporary supports of tunnel Pending CN101832141A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910066613A CN101832141A (en) 2009-03-11 2009-03-11 Method for connecting temporary supports of tunnel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910066613A CN101832141A (en) 2009-03-11 2009-03-11 Method for connecting temporary supports of tunnel

Publications (1)

Publication Number Publication Date
CN101832141A true CN101832141A (en) 2010-09-15

Family

ID=42716335

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200910066613A Pending CN101832141A (en) 2009-03-11 2009-03-11 Method for connecting temporary supports of tunnel

Country Status (1)

Country Link
CN (1) CN101832141A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102606174A (en) * 2012-04-18 2012-07-25 中铁隧道股份有限公司 Four-direction connection box for lagging jacks
CN103590841A (en) * 2012-08-13 2014-02-19 上海市政工程设计研究总院(集团)有限公司 Supporting method for primary support of underground excavated chamber
CN106014457A (en) * 2015-03-24 2016-10-12 中铁隆工程集团有限公司 Connection application of L-shaped grille joint in tunnel initial supporting structure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102606174A (en) * 2012-04-18 2012-07-25 中铁隧道股份有限公司 Four-direction connection box for lagging jacks
CN102606174B (en) * 2012-04-18 2014-07-02 中铁隧道股份有限公司 Four-direction connection box for lagging jacks
CN103590841A (en) * 2012-08-13 2014-02-19 上海市政工程设计研究总院(集团)有限公司 Supporting method for primary support of underground excavated chamber
CN103590841B (en) * 2012-08-13 2017-02-08 上海市政工程设计研究总院(集团)有限公司 Supporting method for primary support of underground excavated chamber
CN106014457A (en) * 2015-03-24 2016-10-12 中铁隆工程集团有限公司 Connection application of L-shaped grille joint in tunnel initial supporting structure

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PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20100915

C02 Deemed withdrawal of patent application after publication (patent law 2001)