CN2921285Y - Bolt-spary gallery simply, supported ends beam type temporary support apparatus - Google Patents
Bolt-spary gallery simply, supported ends beam type temporary support apparatus Download PDFInfo
- Publication number
- CN2921285Y CN2921285Y CN 200620043622 CN200620043622U CN2921285Y CN 2921285 Y CN2921285 Y CN 2921285Y CN 200620043622 CN200620043622 CN 200620043622 CN 200620043622 U CN200620043622 U CN 200620043622U CN 2921285 Y CN2921285 Y CN 2921285Y
- Authority
- CN
- China
- Prior art keywords
- simply supported
- supported beam
- simply
- temporary support
- colludes
- 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
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a temporary supporting device with structure of simply supported beam used in rock drift of coal mine and anchoring and shotcreting drift in tunnel, which comprises a plurality of simply supported beams made of steel installed on rock wall at the end of tunnelling along direction of drift. Top of the simply supported beam is inserted into the pre-reserved hole on rock wall and tail end of the simply supported beam is connected with rockbolts of permanent supporting or beam made of metal strip through the suspension ring. The function of temporary supporting is achieved by clamping net working and stuffing up gaps between simply supported wedges and rock wall. Having advantages of simple and applied structure and convenient installation, the utility model greatly reduces time during which workers operate under empty roof.
Description
Technical field
The temporary lining in the utility model step and colliery stone head and tunnel.
Background technology
Tunnelling construction, empty top operation down are the major reasons that causes the roof fall casualty accident.Statistics shows: roof fall accident accounts for 40% of all accidents in the mine safety accidents, rank first place, and the heading end roof fall accounts for 20% of total roof fall accident, so in the tunnelling circulation, carry out to carry out temporary lining earlier before the permanent support, purpose is in order to make the workman not carry out operation under the state on sky top, for construction provides safety guarantee.
Analyze the reason that roof fall accident takes place, nearly all heading end roof fall accident all takes place under the situation of empty top, from existing processes system and appointed condition, it also is to carry out under the sky top that the workman sets up irrational temporary lining, also have plenty of because the newly outstanding dew top board of boring head has stone alive or umbrella eaves, out in the cold or deal with improperly in the construction, cause stone alive and umbrella eaves in operation process, suddenly inbreak takes place and cause human casualty accident.
" safety regulations in coal mine " regulation meets head on not allow the operation of empty top, the distance of face roof under control from clearly stipulating in operating regulation.So-called " distance of face roof under control from " is meant the effective range (the confessed 45 ° of circular cone scopes of China expert at present) of bolt support, but behind tunnel blasting, 45 ° of following country rocks of circular cone scope are in runaway condition, it are not carried out temporary lining, and the possibility that roof fall takes place is very big.
Also use some easy temporary support devices at heading end at present, face supporting and be still operation under the situation of empty top but these are installed, have very big danger, the falsework set-up time that has is long, and supporting effect is undesirable.
Summary of the invention
The purpose of this utility model provides a kind of bolting and shotcrete roadway freely-supported beam type temporary support device, and simple and convenient is installed, and supporting effect is good, avoids the danger that operation causes roof fall to hurt sb.'s feelings under the sky top.
The utility model is realized with following technical scheme: a kind of bolting and shotcrete roadway freely-supported beam type temporary support device, it is characterized in that: prolong roadway direction at the tunnelling head and press close to some simply supported beams of crag installation, the front end of simply supported beam inserts in the preformed hole of heading end crag, and afterbody is mounted in the hole of movable hoisting ring; Between simply supported beam and crag, networking is set, between simply supported beam and networking, inlays slab or timber wedge; Movable hoisting ring U type groove upper end is fixed by bolt and connector, and the screw in the connector is screwed in the bolt of anchor pole end.
U type body one side of described movable hoisting ring is drop hanger fixedly, and described simply supported beam is the round bar shape body of making of steel.
The band that described band colludes suspension ring colludes end and colludes on the steel band beam on the tunnel, during use simply supported beam is inserted into band and colludes in the closed-loop of suspension ring bottom.
The utility model has the advantages that: after the heading end explosion, tap, remove outstanding cash crag, lay networking, work such as simply supported beam are installed, all do not need workman's operation under the sky top for a long time, simply supported beam has certain intensity, guarantees the effectively interim of top board supported.Fixedly the support holes of simply supported beam and suspension ring all are ready-made before explosion, provide convenience for simply supported beam is installed, and shorten the set-up time, reduce roof fall danger.Because simply supported beam is fixed on the anchor pole, the workmanship of auxiliary examination anchor pole and installation quality again.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 installs sketch for the utility model temporary lining;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the A place part section enlarged drawing (first scheme) of Fig. 1;
Fig. 4 is the A place part section enlarged drawing (alternative plan) of Fig. 1.
Among the figure: 1, simply supported beam, 2, movable hoisting ring, 3, bolt, 4, connector, 2-1, drop hanger, 5, crag 6, anchor pole, 7, networking, 8, timber wedge, 9, band colludes suspension ring, 10, the steel band beam.
The specific embodiment
First kind of embodiment
As shown in Figure 1 and Figure 2, about exploding at the moment with dark the increasings 400mm of the quick-fried eye of arch periphery, and when powder charge, dress water stemming material at the bottom of the hole forms simply supported beam installation preformed hole after the explosion according to the installation site of simply supported beam and quantity.
As shown in Figure 1, 2, 3, tap after the explosion, remove outstanding cash crag, shop networking 7 is to bind on request, simply supported beam 1 front end is inserted in the preformed hole, afterbody is inserted in the U type groove of movable hoisting ring 2, according to the height of scar, also can be inserted into (position shown in double dot dash line among Fig. 3) among the drop hanger 2-1.Movable hoisting ring 2 is fixing with connector 4 by bolt 3, connector 4 is fixed on the anchor pole 6 of permanent support by screw thread, if when simply supported beam and vault crag 5 excesssive gaps, catch networking in simply supported beam and institute and clamp slab and timber wedge between 7, guarantee the effective supporting of simply supported beam to top board.
Carry out permanent supporting operation after temporary lining work is finished again, movable hoisting ring 2 and simply supported beam 1 are pulled down put well at last, recycle in order to the next one.
Second kind of embodiment
This programme is basic basic identical with first scheme, difference is that movable hoisting ring 2 connectors 4 are not used in the supporting of simply supported beam 1 tail end, be mounted on the steel band beam 10 in the permanent support but collude suspension ring 9 with band, simply supported beam 1 is inserted into band and colludes in the closed-loop of suspension ring, and all the other steps are identical with first kind of embodiment.
Second kind of embodiment only is suitable for the tunnel of " anchor guipure spray supporting ".The space that exists between steel band beam 10 and the rimrock wall 5 must can reach the purpose of temporary lining with timber wedge, slab plug solid yardage.
Need to prove: any supporting is not omnipotent, do not think that operation just is perfectly safe under temporary lining, what the workpeople accumulated in long-term work taps, observing good custom such as rock seam and experience can not lose, with temporary lining of the present utility model and with playing a multiplier effect.
Claims (3)
1, a kind of bolting and shotcrete roadway freely-supported beam type temporary support device, it is characterized in that: prolong roadway direction at the tunnelling head and press close to crag installation some simply supported beams (1), the front end of simply supported beam (1) inserts in the preformed hole of heading end crag, and afterbody is mounted in the hole of movable hoisting ring (2); Networking (7) is set between simply supported beam (1) and crag, between simply supported beam (1) and networking (7), inlays slab or timber wedge (8); Movable hoisting ring (2) U type groove upper end is fixing by bolt (3) and connector (4), and the screw in the connector (4) is screwed in the bolt of anchor pole (6) end.
2, bolting and shotcrete roadway freely-supported beam type temporary support device according to claim 1 is characterized in that: U type body one side of described movable hoisting ring (2) is drop hanger (2-1) fixedly, and described simply supported beam (1) is the round bar shape body of making of steel.
3, bolting and shotcrete roadway freely-supported beam type temporary support device according to claim 1, it is characterized in that: the band that described band colludes suspension ring (9) colludes end and colludes on the steel band beam (10) on the tunnel, during use simply supported beam (1) is inserted into band and colludes in the closed-loop of suspension ring (9) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620043622 CN2921285Y (en) | 2006-07-04 | 2006-07-04 | Bolt-spary gallery simply, supported ends beam type temporary support apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620043622 CN2921285Y (en) | 2006-07-04 | 2006-07-04 | Bolt-spary gallery simply, supported ends beam type temporary support apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2921285Y true CN2921285Y (en) | 2007-07-11 |
Family
ID=38253764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620043622 Expired - Fee Related CN2921285Y (en) | 2006-07-04 | 2006-07-04 | Bolt-spary gallery simply, supported ends beam type temporary support apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2921285Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892854A (en) * | 2010-06-29 | 2010-11-24 | 山西潞安环保能源开发股份有限公司漳村煤矿 | Mining movable hoisting ring |
| CN102434178A (en) * | 2011-12-14 | 2012-05-02 | 枣庄矿业（集团）有限责任公司滨湖煤矿 | Mining forepoling net |
| CN102900445A (en) * | 2012-11-12 | 2013-01-30 | 淮南矿业(集团)有限责任公司 | Temporary supporting device for anchor net roadway |
-
2006
- 2006-07-04 CN CN 200620043622 patent/CN2921285Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892854A (en) * | 2010-06-29 | 2010-11-24 | 山西潞安环保能源开发股份有限公司漳村煤矿 | Mining movable hoisting ring |
| CN101892854B (en) * | 2010-06-29 | 2011-12-28 | 山西潞安环保能源开发股份有限公司漳村煤矿 | Mining movable hoisting ring |
| CN102434178A (en) * | 2011-12-14 | 2012-05-02 | 枣庄矿业（集团）有限责任公司滨湖煤矿 | Mining forepoling net |
| CN102900445A (en) * | 2012-11-12 | 2013-01-30 | 淮南矿业(集团)有限责任公司 | Temporary supporting device for anchor net roadway |
| CN102900445B (en) * | 2012-11-12 | 2015-10-21 | 淮南矿业(集团)有限责任公司 | Tunnel temporary support device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106285738B (en) | A kind of " steel reinforced concrete-hydraulic pressure " roadside support device and method for protecting support for deep tunnel | |
| CN105545321B (en) | A kind of small area blasting mining in thin seam working face gob-side entry retaining support method | |
| CN102778182A (en) | Beside-roadway escribing pressure relief method of roadway driving along gob of small coal pillar influenced by dynamic pressure | |
| CN113090284B (en) | Roadway support method for soft and broken rock mass of underground mine | |
| CN106593497A (en) | Supporting treatment method for coal working face when passing through top-coal caving region of gateway | |
| CN2921285Y (en) | Bolt-spary gallery simply, supported ends beam type temporary support apparatus | |
| CN107218069A (en) | A kind of back suspension device and method for protecting support | |
| CN105715289B (en) | Gob side entry retaining face end support | |
| CN106677813A (en) | Novel temporary supporting device for coal mine roadway comprehensive digging face | |
| CN204113319U (en) | A kind of folding telescopic alley hydraulic support | |
| CN110486069A (en) | A kind of high working face coal wall caving control structure and construction equipment based on flexibility reinforcing | |
| CN104533518A (en) | Protection support for roadway-side packing wall | |
| CN113530558A (en) | Double-chute-inclined roadway combined layered construction method for big and high chamber | |
| CN104373147A (en) | Folding extension type roadway hydraulic bracket and application method thereof | |
| CN105736027B (en) | Gob side entry retaining support group | |
| CN109184752A (en) | A kind of coal mine supporting construction and its method for protecting support for passing through old kiln goaf | |
| CN109838253A (en) | A kind of systemic circulation combination beam type gib roof control device and its construction method | |
| CN105201529B (en) | Double tow ties up Flexible formwork assembly and its placement methods to a kind of gob side entry retaining crosswise | |
| CN201560775U (en) | Temporary support device for coal mine tunneling | |
| CN104769219A (en) | Rock anchoring system and method | |
| CN207273111U (en) | A kind of anchor nut removal tool | |
| CN207177310U (en) | A kind of crane beam on rock wall for underground power house reinforcing bar is from steady structure | |
| CN203730023U (en) | Frame shed beam device | |
| CN205558951U (en) | Gob entry face -end support | |
| CN210660136U (en) | Soft thick coal seam working face tunnel advance canopy guard supporting construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070711 Termination date: 20110704 |