CN201747383U - Rapid supporting system for steel shotcrete - Google Patents
Rapid supporting system for steel shotcrete Download PDFInfo
- Publication number
- CN201747383U CN201747383U CN2010201988665U CN201020198866U CN201747383U CN 201747383 U CN201747383 U CN 201747383U CN 2010201988665 U CN2010201988665 U CN 2010201988665U CN 201020198866 U CN201020198866 U CN 201020198866U CN 201747383 U CN201747383 U CN 201747383U
- Authority
- CN
- China
- Prior art keywords
- steel
- arc truss
- steel arc
- bow member
- supporting system
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a rapid supporting system for steel shotcrete, which comprises a steel arc truss, feet-lock bolts, steel nets, a sub arch and connection bars. The steel arc truss is fixed on a rock surface through the feet-lock bolts on the left and right sides and the connection bars; the steel nets are laid along an excavated surface; the sub arch is welded with the steel arc truss, arranged in a large space part between the steel arc truss and the excavated surface, and filled with prefabricated mortar blocks; and the rest space is filled with sprayed concrete. Therefore, the steel arc truss and a wall rock can form a bearer as soon as possible, and the effect of the steel arc truss can be exerted in time. The rapid supporting system has the advantages of simple and rapid operation and low construction cost. The rapid supporting system solves the problems that after tunnel overexcavation, the space between the steel arc truss and the excavated surface can be back filled compactly as soon as possible, so as to form a bearer body, the effect of the steel arc truss can be exerted, and the stability of the wall rock can be ensured.
Description
Technical field
The utility model relates to the quick support system that steel supports in a kind of tunnel support.
Background technology
In the tunnel excavation in order to guarantee safety, running into the V class surrounding rock generally adopts i iron to carry out the steel support, but sometimes because country rock is relatively poor, cause backbreak more, cause between excavation face and the steel bow member apart from bigger, if cavity all adopts the sprayed mortar backfill between steel bow member and the excavation face, chronic on the one hand, cost is also very high on the other hand, and particularly the very difficult backfill of crown position short time is closely knit, and the steel bow member can't form stressed integral body as early as possible with scar like this, if country rock is relatively poor, constantly deform, the steel bow member is stressed playing a role comprehensively again, and can there be very big potential safety hazard in tunnel.
The utility model content
The purpose of this utility model just provides that a kind of backfill is closely knit as early as possible between steel bow member after the tunnel over-break and excavation face, forms stressed integral body, the effect that the performance steel supports, and can guarantee that the steel of adjoining rock stability supports quick support system.
The technical solution adopted in the utility model is: a kind of steel supports quick support system, comprise steel bow member, lock foot anchoring stock, reinforced mesh, subarch, connecting reinforcement, the steel bow member is fixed in scar by the lock foot anchoring stock and the link reinforcing bar of left and right side, reinforced mesh is laid along the excavation face, subarch and the welding of steel bow member, be arranged on big position, space between steel bow member and the excavation face, and fill prefabricated mortar piece, fill sprayed mortar in the remaining space.Make steel bow member and country rock form beaer as early as possible like this, in time bring into play the effect of steel bow member.
Advantage of the present utility model is: simple to operate, quick, construction cost is low.After steel of the present utility model supported quick support system and solved tunnel over-break, backfill was closely knit as early as possible between steel bow member and the excavation face, forms stressed integral body, and the problem of adjoining rock stability is guaranteed in the effect of performance steel bow member.
Description of drawings
Fig. 1 is a schematic cross section of the present utility model;
Fig. 2 is the cross section enlarged diagram of the utility model one side.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
As depicted in figs. 1 and 2, a kind of steel supports quick support system, comprises steel bow member 1, lock foot anchoring stock 2, reinforced mesh 4, subarch 5, connecting reinforcement 7.
Just spray one deck steel fibrous concrete 3 behind the tunnel excavation immediately, at first adopt the lock foot anchoring stock 2 and the link reinforcing bar 7 of left and right side fixing behind steel bow member 1 location, lay the reinforced mesh 4 that processes along excavation face 8 then, upright subarch 5 is propped up at bigger position, space between steel bow member 1 and the excavation face 8, subarch 5 and 1 welding of steel bow member, bigger position, space adopts prefabricated mortar piece 6 to fill between steel bow member 1 and the excavation face 8 then, use sprayed mortar 9 that the cavity filling is closely knit at last, and reach the jet thickness of designing requirement.Can make country rock and steel bow member 1 form an integral body so in the short period of time, play the effect that steel supports, guarantee adjoining rock stability.
The steel that the utility model provides supports that quick support system is simple to operate, and speed of application is fast, and engineering cost is low, plays good effect to guaranteeing adjoining rock stability.
Claims (1)
1. a steel supports quick support system, it is characterized in that: comprise steel bow member, lock foot anchoring stock, reinforced mesh, subarch, connecting reinforcement, the steel bow member is fixed in scar by the lock foot anchoring stock and the link reinforcing bar of left and right side, reinforced mesh is laid along the excavation face, subarch and the welding of steel bow member, be arranged on big position, space between steel bow member and the excavation face, and fill prefabricated mortar piece, fill sprayed mortar in the remaining space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201988665U CN201747383U (en) | 2010-05-20 | 2010-05-20 | Rapid supporting system for steel shotcrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201988665U CN201747383U (en) | 2010-05-20 | 2010-05-20 | Rapid supporting system for steel shotcrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201747383U true CN201747383U (en) | 2011-02-16 |
Family
ID=43582066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201988665U Expired - Fee Related CN201747383U (en) | 2010-05-20 | 2010-05-20 | Rapid supporting system for steel shotcrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201747383U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453952A (en) * | 2014-12-03 | 2015-03-25 | 中国长江三峡集团公司 | Soft rock tunnel steel support pre-support device and using method thereof |
| CN108150200A (en) * | 2018-01-18 | 2018-06-12 | 西南石油大学 | A kind of support of tunnel arch and application method |
| CN110566240A (en) * | 2019-08-26 | 2019-12-13 | 中铁四局集团第五工程有限公司 | Construction method suitable for protecting existing tunnel in close-proximity expanded excavation tunnel construction |
-
2010
- 2010-05-20 CN CN2010201988665U patent/CN201747383U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453952A (en) * | 2014-12-03 | 2015-03-25 | 中国长江三峡集团公司 | Soft rock tunnel steel support pre-support device and using method thereof |
| CN104453952B (en) * | 2014-12-03 | 2016-08-24 | 中国长江三峡集团公司 | Soft rock tunnel bracing members advanced stand device and using method thereof |
| CN108150200A (en) * | 2018-01-18 | 2018-06-12 | 西南石油大学 | A kind of support of tunnel arch and application method |
| CN110566240A (en) * | 2019-08-26 | 2019-12-13 | 中铁四局集团第五工程有限公司 | Construction method suitable for protecting existing tunnel in close-proximity expanded excavation tunnel construction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108019222B (en) | A kind of tunnel lining structure and construction method using haydite filling | |
| CN103244130B (en) | Quick excavation and expanding construction method of herringbone tunnel section | |
| CN108798702B (en) | Supporting method for large-section soft rock large-deformation tunnel | |
| CN103410528B (en) | Tunnel lining structure and construction method | |
| CN102337903B (en) | Method of active coupling support in time and space for control of minimum deformation of surrounding rock of deep well roadway | |
| CN102305077A (en) | Rapid construction method of large-section multi-arc tunnel | |
| CN201771517U (en) | Tunnel support structure | |
| CN203515604U (en) | Tunnel Support structure for schist layer in deformation | |
| CN103375171B (en) | Start in a kind of shield structure hole counter-force frame | |
| CN103032080A (en) | Support method of weak and broken surrounding rock tunnel | |
| CN103953366B (en) | Mid-board top former lining cutting cavity backfill construction method when single hole tunnel changes arcading into | |
| CN102373930A (en) | Rapid construction method of weak surrounding rock large-section multi-arc tunnel | |
| CN204877493U (en) | Soft rock tunnel supporting construction | |
| CN203782684U (en) | Anti-skid pile provided with crossbeam | |
| CN101899837A (en) | Active anti-shear concrete supporting structure for reinforcing deep sliding surfaces of rock slopes | |
| CN104533451A (en) | Tunnel advance pre-supporting technology used in discrete gravelly soil and broken surrounding rock | |
| CN103993893A (en) | Underground construction three-dimensional reinforcing steel bar polypropylene fiber concrete support | |
| CN205895242U (en) | Low -angle crossing tunnel structure | |
| CN201747383U (en) | Rapid supporting system for steel shotcrete | |
| CN103422873A (en) | Strong-strength extendable anchor rod | |
| CN206092004U (en) | Loess tunnel initial stage supporting device that is under construction | |
| CN105156137B (en) | Tunnel side wall preliminary bracing method in V~VI grade of country rock | |
| CN102277875A (en) | Composite supporting structure between piles | |
| CN204436407U (en) | The structure that the pre-Geological disaster prevention of the double-deck preliminary bracing of a kind of big cross section Support System in Soft Rock Tunnels occurs | |
| CN203822325U (en) | Steel grating steel arch frame combined support for initial stage of expansibility soil layer tunnel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20180520 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |