CN201810323U - Bolt connection plate for connecting tunnel inverted arch steel frame with arch angle steel frame - Google Patents

Bolt connection plate for connecting tunnel inverted arch steel frame with arch angle steel frame Download PDF

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Publication number
CN201810323U
CN201810323U CN2010205706583U CN201020570658U CN201810323U CN 201810323 U CN201810323 U CN 201810323U CN 2010205706583 U CN2010205706583 U CN 2010205706583U CN 201020570658 U CN201020570658 U CN 201020570658U CN 201810323 U CN201810323 U CN 201810323U
Authority
CN
China
Prior art keywords
bolt
plate
junction plate
steel frame
drilled
Prior art date
Application number
CN2010205706583U
Other languages
Chinese (zh)
Inventor
郑保才
张俊兵
胡国伟
辛振省
Original Assignee
中铁三局集团有限公司
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 中铁三局集团有限公司 filed Critical 中铁三局集团有限公司
Priority to CN2010205706583U priority Critical patent/CN201810323U/en
Application granted granted Critical
Publication of CN201810323U publication Critical patent/CN201810323U/en

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Abstract

The utility model discloses a bolt connection plate for connecting a tunnel inverted arch steel frame with an arch angle steel frame and solves the problems in the tunnel construction process that when the inverted arch steel frame is connected with the arch angle steel frame, because of the unreasonable connection plate structure, the bolt holes on the connecting plate are difficult to align at, the connection is improper and the potential safety hazard exists. The bolt connecting plate comprises a bolt connecting plate A and a bolt connecting plate B, wherein four to ten bolt holes are drilled on the bolt connecting plate A; on the bolt connecting plate B, bolt holes are drilled on the positions corresponding to the bolt holes on the bolt connecting plate A; and two to four adjustable bolt holes are respectively drilled at two sides of the bolt holes along the length direction on the bolt connecting plate B by taking the bolt holes opposite to the bolt holes on the bolt connecting plate A, on the bolt connecting plate B as centers. To some extent, the bolt connection plate in the utility model can solve the problems that the bolt holes on the bolt connecting plate cannot be aligned at and the connection is improper. The connection is more stable and the potential safety hazards are reduced by using the dynamic adjustable connection method and the method for arranging the bolt slot or changing the arranged positions of the bolt holes.

Description

A kind of tunnel invert steelframe and bolt junction plate of being connected of arch slotted-angle shelving of being used for
Technical field
The utility model relates to and carries out the junction plate that uses in the preliminary bracing process behind the tunnel excavation, relates in particular to a kind of bolt junction plate that tunnel invert steelframe and arch slotted-angle shelving are connected that is used for.
Background technology
Preliminary bracing behind the tunnel excavation is the important means that guarantees adjoining rock stability and controlled deformation, must guarantee the quality and the effect of preliminary bracing in the work progress, guarantee construction safety and reduce surrouding rock deformation, generally adopt grid steelframe and i iron steelframe as rigidity supporting and protection structure in the tunnel preliminary bracing process at present.Because the factors such as fitting operation of tunnel excavation method and supporting and protection structure have determined grid and i iron steelframe to need segmental machining, assembled on site is shaped.The joint of i iron steelframe supporting is the weak link of total, must guarantee the connection effect of steelframe joint, make supporting and protection structure can form ring seal, reach good force structure condition, therefore, the quality of connection of joint plays an important role to the resistance to overturning of supporting and protection structure.
Steelframe in the preliminary bracing process connects the main bolt junction plate joint that adopts at present, and junction plate is welded on the steelframe, by bolt two sections steelframe junction plates is linked together.But in the work progress of reality, owing to the excavation explosion and apply reason such as other temporary linings, inevitably cause the tunnel to be backbreak, the size of tunnel excavation section increases, simultaneously because the steelframe quality is bigger, labour intensity and difficulty are bigger in the erection process, and steelframe generally all adopts big prefabricated the forming of i iron equal strength, the Field adjustment difficulty is very big, though in work progress, all considered at steelframe behind with gad or concrete precast block wedging, but it is specific that the size dimension of chock is, occurring inverted arch steelframe unit in construction easily can not aim at the junction plate bolt hole of Gong Jiao unit, bolt can't connect, tend to occur the phenomenon that do not connect or be serially connected with reinforcing bar simply, be difficult to guarantee the resistance to overturning of steelframe sealing in time and steelframe, preliminary bracing intensity reduces, and construction stays hidden danger to tunnel safety.
Summary of the invention
The utility model is in order to solve in the constructing tunnel process, when setting up the inverted arch steelframe, because existing junction plate unreasonable structure, can not aim at the junction plate bolt hole that the arch slotted-angle shelving is connected and occur the inverted arch steelframe easily, connect not in place, there is the problem of potential safety hazard, and a kind of bolt junction plate that the tunnel invert steelframe is connected with the arch slotted-angle shelving that is used for is provided.
The utility model is achieved through the following technical solutions:
A kind of tunnel invert steelframe and bolt junction plate of being connected of arch slotted-angle shelving of being used for, comprise bolt junction plate A and bolt junction plate B, be drilled with 4~10 bolts hole on the bolt junction plate A, be drilled with bolt hole in position corresponding on the bolt junction plate B with bolt hole on the bolt junction plate A, wherein, on the bolt junction plate B with bolt junction plate A on bolt hole with respect to bolt hole be the center, be drilled with 2~4 adjustable bolt holes respectively in the both sides of bolt hole along its length.In use, when the center bolt hole can not be aimed at, when bolt can't connect, bolt hole on the bolt junction plate A can be selected to aim at the some adjustable bolts hole of both sides, centre bolt hole on the bolt junction plate B, finely tune,, eliminate safe hidden trouble to guarantee connection stability.
Further, on the bolt hole position on the bolt junction plate B, be drilled with continuous bolt hole along its length, form bolt slot.
Also comprise fixedly backing plate, fixedly the backing plate medium position be drilled with bolt junction plate A on the equirotal bolt hole of bolt hole, fixedly the long side direction of backing plate is vertical with the long side direction of bolt slot, in use, after having determined link position, fixedly backing plate is fixed on the bolt junction plate B with modes such as welding, to improve connection stability.
Compared with prior art, the utility model can solve the inverted arch steelframe to a certain extent and can not aim at arch slotted-angle shelving junction plate bolt hole, connect problem not in place, adopt the method for attachment of dynamic adjustable joint, by bolt slot being set or changing the method for the position of bolt hole, feasible connection is more stable, reduces potential safety hazard.
Description of drawings
Fig. 1 a and Fig. 1 b are respectively a kind of bolt junction plate A of the bolt junction plate that the tunnel invert steelframe is connected with the arch slotted-angle shelving and structural representation of bolt junction plate B of being used for of the utility model;
Fig. 2 a and Fig. 2 b are respectively the bolt junction plate A of a kind of a kind of specific embodiment that is used for the bolt junction plate that the tunnel invert steelframe is connected with the arch slotted-angle shelving of the utility model and the structural representation of bolt junction plate B;
Fig. 3 is a scheme of installation of the present utility model;
Among the figure: 1-bolt junction plate A, 2-bolt junction plate B, 3-bolt hole, 4-bolt hole, 5-bolt slot, 6-adjustable bolt hole, 7-be backing plate fixedly.
The specific embodiment
Embodiment 1
As shown in Figure 1, a kind of tunnel invert steelframe and bolt junction plate of being connected of arch slotted-angle shelving of being used for, comprise bolt junction plate A1 and bolt junction plate B2, be drilled with 4 (also can be 6,8,10) bolts hole 3 on the bolt junction plate A1, be drilled with bolt hole 4 in position corresponding on the bolt junction plate B2 with bolt hole 3 on the bolt junction plate A1, on the bolt junction plate B2 with bolt junction plate A1 on bolt hole 3 with respect to bolt hole be the center, be drilled with 2 (also can be 4) adjustable bolt holes along its length respectively in the both sides of bolt hole.
Embodiment 2
As shown in Figure 2, a kind of tunnel invert steelframe and bolt junction plate of being connected of arch slotted-angle shelving of being used for, comprise bolt junction plate A1 and bolt junction plate B2, be drilled with 4 (also can be 7,8,10) bolts hole 3 on the bolt junction plate A1, on the bolt hole position on the bolt junction plate B2, be drilled with continuous bolt hole along its length, form bolt slot 5.
Also comprise fixedly backing plate 7, fixedly the backing plate medium position be drilled with bolt junction plate A1 on bolt hole 3 equirotal bolts hole, fixedly the long side direction of backing plate 7 is vertical with the long side direction of bolt slot 5.

Claims (3)

1. one kind is used for the bolt junction plate that the tunnel invert steelframe is connected with the arch slotted-angle shelving, comprise bolt junction plate A(1) and bolt junction plate B(2), bolt junction plate A(1) is drilled with 4~10 bolts hole (3) on, at bolt junction plate B(2) go up and bolt junction plate A(1) on the corresponding position of bolt hole (3) be drilled with bolt hole (4), it is characterized in that at bolt junction plate B(2) go up with bolt junction plate A(1) on bolt hole (3) with respect to bolt hole be the center, be drilled with 2~4 adjustable bolt holes respectively in the both sides of bolt hole along its length.
2. a kind of tunnel invert steelframe and bolt junction plate of being connected of arch slotted-angle shelving of being used for according to claim 1 is characterized in that described bolt junction plate B(2) on the bolt hole position on, be drilled with continuous bolt hole along its length, formation bolt slot (5).
3. a kind of bolt junction plate that the tunnel invert steelframe is connected with the arch slotted-angle shelving that is used for according to claim 2, it is characterized in that also comprising fixedly backing plate (7), fixedly the backing plate medium position is drilled with and bolt junction plate A(1) on the equirotal bolt hole of bolt hole (3), fixedly the long side direction of backing plate (7) is vertical with the long side direction of bolt slot (5).
CN2010205706583U 2010-10-21 2010-10-21 Bolt connection plate for connecting tunnel inverted arch steel frame with arch angle steel frame CN201810323U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205706583U CN201810323U (en) 2010-10-21 2010-10-21 Bolt connection plate for connecting tunnel inverted arch steel frame with arch angle steel frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205706583U CN201810323U (en) 2010-10-21 2010-10-21 Bolt connection plate for connecting tunnel inverted arch steel frame with arch angle steel frame

Publications (1)

Publication Number Publication Date
CN201810323U true CN201810323U (en) 2011-04-27

Family

ID=43893266

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010205706583U CN201810323U (en) 2010-10-21 2010-10-21 Bolt connection plate for connecting tunnel inverted arch steel frame with arch angle steel frame

Country Status (1)

Country Link
CN (1) CN201810323U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102562098A (en) * 2012-01-30 2012-07-11 中铁四局集团第五工程有限公司 Tunnel steel temporary inverted arch with rapid assembly and disassembly
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
CN104500106A (en) * 2014-12-08 2015-04-08 中铁二十局集团有限公司 Tunnel inverted arch construction die carrier and tunnel inverted arch construction process
CN106401617A (en) * 2016-09-12 2017-02-15 中铁十九局集团第七工程有限公司 Steel arch and joint thereof
CN108386212A (en) * 2018-03-13 2018-08-10 中水北方勘测设计研究有限责任公司 Connection method of the tunnel support between steel arch-shelf unit
CN110685977A (en) * 2019-09-03 2020-01-14 徐州海马机械铸造有限公司 Mechanical connecting support

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102562098A (en) * 2012-01-30 2012-07-11 中铁四局集团第五工程有限公司 Tunnel steel temporary inverted arch with rapid assembly and disassembly
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
CN104500106A (en) * 2014-12-08 2015-04-08 中铁二十局集团有限公司 Tunnel inverted arch construction die carrier and tunnel inverted arch construction process
CN106401617A (en) * 2016-09-12 2017-02-15 中铁十九局集团第七工程有限公司 Steel arch and joint thereof
CN108386212A (en) * 2018-03-13 2018-08-10 中水北方勘测设计研究有限责任公司 Connection method of the tunnel support between steel arch-shelf unit
CN108386212B (en) * 2018-03-13 2019-05-28 中水北方勘测设计研究有限责任公司 Connection method of the tunnel support between steel arch-shelf unit
CN110685977A (en) * 2019-09-03 2020-01-14 徐州海马机械铸造有限公司 Mechanical connecting support

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CX01 Expiry of patent term

Granted publication date: 20110427

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