CN2182879Y - Hinge joining type concrete telescopic type support - Google Patents
Hinge joining type concrete telescopic type support Download PDFInfo
- Publication number
- CN2182879Y CN2182879Y CN 92229653 CN92229653U CN2182879Y CN 2182879 Y CN2182879 Y CN 2182879Y CN 92229653 CN92229653 CN 92229653 CN 92229653 U CN92229653 U CN 92229653U CN 2182879 Y CN2182879 Y CN 2182879Y
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- CN
- China
- Prior art keywords
- support
- telescopic
- reinforced concrete
- utility
- model
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- 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
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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model relates to a hinged-type reinforced concrete telescopic support, comprising a prefabricated reinforced concrete construction member and a metal connecting member. The contact surface of the construction member and the connecting member transfers force by friction and can be telescopic through relatively slipping, which can be telescopic and regulated. The utility model makes the best of the characteristic of the reinforced concrete with high anti-compression strength and a hinged type can make the telescopic connecting point no bending moment and make sure the construction member always in an axial pressing state with good telescopic performance. The support with low cost only as about 30% of a steel support can completely replace the telescopic support of a U-shaped steel and can be suitable for lanes with soft rocks and sublevel supports. The support can overcome the abuses of the wooden shed support which is easy to break down, is frequently repaired and has a large quantity of wood consumption. The support needs not to be overhauled within the usage period of the sublevel (in general a year) and can be recycled for reusing, and therefore, the utility model is an ideal support for the support protection of mines and lanes with soft rocks.
Description
The utility model relates to a kind of mine soft rock roadway support.
Existing this supporting: 1, " the hinged compressibile support of mining i beam arch " of table mountain mineral bureau Research Institute, number of patent application: 90206916.5.The bearing capacity of this support is bigger, can the amount of contracting size can regulate, and material therefor all is steel, support cost height.2, Dong shows the meter that is pivoted " high strength can contract arch ", number of patent application: 87216389, and the advantage of this supporting is the intensity height, but complex structure, working procedure is loaded down with trivial details, can the amount of contracting is difficult transfers the support cost height.
The purpose of this utility model provides a kind of destruction amount that reduces the Soft Rock Mine support, reduces the New-support of support cost, is applicable to soft-rock tunnel (comprising crossheading) supporting.
The technical scheme of this support: adopt precast reinforced concrete structure as pedestal, connect into an integral support with metal connecting piece between the member.It is realized and can contract by the Frictional Slipping of connector on the precast reinforced concrete frame.Concrete assembly unit as shown in drawings, its principle is that connector 2 is tightened by bolt clamping plate 1 and pretension bolt 4 and is fixed on the pedestal 3, connector slides and realizes and can contract that the frictional force maximum value is decided on the bolt degree of tightening when the frictional force on the bonding surface reaches maximum value; Knee-piece 5 is made by iron block, play supporting role, and after treating can the amount of contracting to use up, the convex surface concave surfaces of two joint precast reinforced concrete structures are to connecting, and forms hingedly, and supporting capacity reaches maximum value.This support meets the principle that soft rock supporting " allows earlier and afterwards resists ", not only has higher capacity, and can adapt to the big characteristics of soft-rock tunnel deflection because it has good contractibility.
Compared with the prior art the utility model support has the following advantages: 1, present widely used U shaped steel collapsible timbering, this support replaces U shaped steel with prefabricated units, can reduce cost 60%～70%.2, adopt radial type to connect, can make support all the time very little, guarantee axial compression, can make support be in good contractibility state all the time like this in the moment of flexure of joint.3, when bearing non-homogeneous load, has the performance of automatic adjusting load.Utilize it can cancel secondary supporting, simplified working procedure.4, handling ease, the precast reinforced concrete structure of can gathering materials on the spot needn't resemble the U shape steel bracket that manufacturer production can not specially.5, easy for installation, connector can be good in ground-mounted, only needs to the down-hole down member is got final product connecting.6, can recycle and reuse, during recovery connector be unloaded, just can pull down entire bracket, overcome and built the shortcoming that the arch supporting can not be multiplexing.7, the bearing capacity height of support.Utilize the high characteristics of concrete crushing strength, can bear the tensile stress that causes because of moment of flexure after the arrangement of reinforcement.8, this support is adapted to colliery crossheading supporting especially, and the crossheading supporting is done with log hut in most of colliery, and supporting destroys serious, need often overhaul.With this then in the tunnel in the operating period (about 1 year) needn't overhaul, reduced the supporting expense comparatively speaking, and created advantage for producing, this indirect economic effect also is considerable.
Description of drawings: Fig. 1-radial type steel concrete compressibile support schematic diagram, Fig. 2-A-A sectional drawing; Symbol among the figure: 1-clamping plate, 2-contractibility channel-section steel connector, 3-precast reinforced concrete frame, 4-bolt, 5-iron knee-piece.
Claims (1)
- A kind of radial type steel concrete collapsible timbering, it is characterized in that the support main member is a reinforced concrete precast member, connector is iron plate bar or shaped steel, entire bracket is by the frictional resistance power transmission between connector and the concrete component contact surface, the facade shape of support can be various geometric figures as circle, ellipse, arch, trapezoidal etc., actual profile shape and instructions for use according to the tunnel are determined, connection between the member belongs to hinged, promptly can produce relative rotation between every adjacent two joint members behind the rack bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92229653 CN2182879Y (en) | 1992-08-02 | 1992-08-02 | Hinge joining type concrete telescopic type support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92229653 CN2182879Y (en) | 1992-08-02 | 1992-08-02 | Hinge joining type concrete telescopic type support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2182879Y true CN2182879Y (en) | 1994-11-16 |
Family
ID=33772967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92229653 Expired - Fee Related CN2182879Y (en) | 1992-08-02 | 1992-08-02 | Hinge joining type concrete telescopic type support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2182879Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089282A (en) * | 2013-01-24 | 2013-05-08 | 辽宁工程技术大学 | High-strength light erosion prevention support |
| CN103470278A (en) * | 2013-09-13 | 2013-12-25 | 山东科技大学 | Rectangular-section steel-encased concrete support |
| CN110219668A (en) * | 2019-07-08 | 2019-09-10 | 河南理工大学 | Reusable modularization gob side entry retaining technique |
| CN111101985A (en) * | 2020-02-02 | 2020-05-05 | 徐孔明 | Umbrella-shaped point column type temporary support for coal mine tunnel |
-
1992
- 1992-08-02 CN CN 92229653 patent/CN2182879Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089282A (en) * | 2013-01-24 | 2013-05-08 | 辽宁工程技术大学 | High-strength light erosion prevention support |
| CN103089282B (en) * | 2013-01-24 | 2014-12-03 | 辽宁工程技术大学 | High-strength light erosion prevention support |
| CN103470278A (en) * | 2013-09-13 | 2013-12-25 | 山东科技大学 | Rectangular-section steel-encased concrete support |
| CN110219668A (en) * | 2019-07-08 | 2019-09-10 | 河南理工大学 | Reusable modularization gob side entry retaining technique |
| CN111101985A (en) * | 2020-02-02 | 2020-05-05 | 徐孔明 | Umbrella-shaped point column type temporary support for coal mine tunnel |
| CN111101985B (en) * | 2020-02-02 | 2021-12-03 | 山东丰源宏科装备科技有限公司 | Umbrella-shaped point column type temporary support for coal mine tunnel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE ADDRESS; FROM: LIAONING SHENYAN CITY YUHON DISTRICT ZHANGSHI VILLAGE SHENYAN DEVELOPMENT DISTRICT SOIL EN WUHAN TO: 141, BUILDING 2, NO. 69, TAI SHAN ROAD, HUANGGU DISTRICT, SHENYANG CITY, 110031 |
|
| CP03 | Change of name, title or address |
Address after: 2 building 69, 110031 Taishan Road, Huanggu District, Shenyang, 141 Patentee after: Liu Dongxuan Address before: Liaoning province Shenyang City Yuhong District Shenyang Development Zone geotechnical engineering company Patentee before: Liu Dongxuan |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |