CN201460915U - Telescopic U-shaped steel roadway support - Google Patents

Telescopic U-shaped steel roadway support Download PDF

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Publication number
CN201460915U
CN201460915U CN2009200921966U CN200920092196U CN201460915U CN 201460915 U CN201460915 U CN 201460915U CN 2009200921966 U CN2009200921966 U CN 2009200921966U CN 200920092196 U CN200920092196 U CN 200920092196U CN 201460915 U CN201460915 U CN 201460915U
Authority
CN
China
Prior art keywords
support
stretcher
shaped steel
telescopic
roadway support
Prior art date
Application number
CN2009200921966U
Other languages
Chinese (zh)
Inventor
白云来
贾安立
田亚军
付玉军
牛宗涛
乔钰辉
岳永军
左清泉
韦文思
郭小电
Original Assignee
焦作煤业集团赵固(新乡)能源有限责任公司
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 焦作煤业集团赵固(新乡)能源有限责任公司 filed Critical 焦作煤业集团赵固(新乡)能源有限责任公司
Priority to CN2009200921966U priority Critical patent/CN201460915U/en
Application granted granted Critical
Publication of CN201460915U publication Critical patent/CN201460915U/en

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Abstract

The utility model discloses a telescopic U-shaped steel roadway support, which comprises a left support body, a clamp cable and a right support body, wherein the left support body and the right support body are mutually overlapped together, the clamp cable is utilized to connect and fix, and a spacing card is fixedly arranged on the left support body and on the position which has a contractible quantity to the end of the right frame body. The telescopic U-shaped steel roadway support has the characteristics of simple structure, safety, reliability, convenient use and the like, and can effectively control the continuous deformation of surrounding rock and the reduction of the cross section of a supporting stand.

Description

Contractibility U shaped steel excavation support
Technical field:
The utility model relates to a kind of contractibility U shaped steel excavation support that can limit amount of contraction.
Background technology:
At present, the contractibility U shaped steel excavation support that use the down-hole, mine is that U shaped steel is overlapped mutually, utilizes the board-like card cable of double flute clevis to be connected and fixed, thereby forms complete contractibility U shaped steel excavation support.Owing to there is not U shaped steel sliding and position limitation, along with the increase and the variation of Tunnel Pressure, but support continues compression deformation, causes drift section constantly to diminish, and influence is normal to be used and coal production, can not give full play to the strong main feature of shaped steel self bearing capacity.Carry out permanent openings behind the sprayed mortar for the surface in bracket support tunnel, continue to increase if press in the ore deposit, the sprinkler body on the sprayed mortar excavation support will be extruded cracking, has both influenced supporting effect, also influences the tunnel overall appearance.
The utility model content:
It is a kind of simple in structure, safe and reliable, easy to use that the purpose of this utility model provides, can limit can the amount of contracting contractibility U shaped steel excavation support.
To achieve these goals, the utility model comprises: left stretcher body, card cable, right stretcher body, left stretcher body and right stretcher body overlap mutually, utilize the card cable to be connected and fixed, and it is to be provided with spacing card on left stretcher body and apart from the fixed-site that the right stretcher body termination can the amount of contracting.
Because spacing card and support body lap-joint have reserved can the amount of contracting, guaranteed that support has suitable contractibility in deformation of the surrounding rock in tunnel velocity attenuation section, guaranteed again when roadway surrounding rock is in relatively stable stage, spacing card can stop the continuation of support body to be shunk, make support give full play to its working resistance, thereby reach the purpose that effective control country rock continuous deformation and support section dwindle.Have characteristics such as simple in structure, safe and reliable, easy to use.
Description of drawings:
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model.
The specific embodiment:
As shown in Figure 1, the utility model comprises: left stretcher body 1, card cable 2, right stretcher body 3, and left stretcher body and right stretcher body all adopt the U structural section, and it is double flute clevis plate form that the card cable adopts G40.Left stretcher body 1 overlaps mutually with right stretcher body 3, utilizes three card cables 2 to be connected and fixed.On left stretcher body and apart from the fixed-site that the right stretcher body termination can the amount of contracting, be provided with spacing card 4, during concrete enforcement, the contracted amount of reserving at interval in lap-joint, spacing card at U shaped steel left stretcher body surface soldered certain width with the intercepting of same model U shaped steel, when the slippage between left stretcher body 1 and the right stretcher body 3 reaches the contracted amount of reservation, promptly be stuck between the two joint U shaped steel support bodys, slippage again, thus guarantee that the support section adheres to specification.

Claims (1)

1. contractibility U shaped steel excavation support, comprise: left stretcher body (1), card cable (2), right stretcher body (3), left stretcher body (1) overlaps mutually with right stretcher body (3), utilize card cable (2) to be connected and fixed, it is characterized in that on left stretcher body and be provided with spacing card (4) apart from the fixed-site that the right stretcher body termination can the amount of contracting.
CN2009200921966U 2009-08-05 2009-08-05 Telescopic U-shaped steel roadway support CN201460915U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009200921966U CN201460915U (en) 2009-08-05 2009-08-05 Telescopic U-shaped steel roadway support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009200921966U CN201460915U (en) 2009-08-05 2009-08-05 Telescopic U-shaped steel roadway support

Publications (1)

Publication Number Publication Date
CN201460915U true CN201460915U (en) 2010-05-12

Family

ID=42388269

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009200921966U CN201460915U (en) 2009-08-05 2009-08-05 Telescopic U-shaped steel roadway support

Country Status (1)

Country Link
CN (1) CN201460915U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102383812A (en) * 2011-11-24 2012-03-21 河南理工大学 Movable clamping seat for connecting U-shaped steel bracket with individual hydraulic prop
CN107893665A (en) * 2017-11-06 2018-04-10 山东建筑大学 A kind of prefabricated assembled composite supporting construction mounting process based on shaped steel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102383812A (en) * 2011-11-24 2012-03-21 河南理工大学 Movable clamping seat for connecting U-shaped steel bracket with individual hydraulic prop
CN107893665A (en) * 2017-11-06 2018-04-10 山东建筑大学 A kind of prefabricated assembled composite supporting construction mounting process based on shaped steel
CN107893665B (en) * 2017-11-06 2019-07-05 山东建筑大学 A kind of prefabricated assembled composite supporting construction mounting process based on fashioned iron

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
EE01 Entry into force of recordation of patent licensing contract

Assignee: Coal Industry Zhengzhou Design Research Institute Co., Ltd.

Assignor: Zhaogu (Xinxiang) Energy Co.,Ltd. Of Jiaozuo Coal Group

Contract record no.: 2010410000093

Denomination of utility model: Telescopic U-shaped steel roadway support

Granted publication date: 20100512

License type: Exclusive License

Record date: 20100901

LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model
EM01 Change of recordation of patent licensing contract

Change date: 20121016

Contract record no.: 2010410000093

Assignee after: Caol Industrial Zhengzhou Design Institute Co., Ltd.

Assignee before: Coal Industry Zhengzhou Design Research Institute Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100512

Termination date: 20160805

CF01 Termination of patent right due to non-payment of annual fee