CN203319570U - Cantilever jib crane for tunnel construction - Google Patents
Cantilever jib crane for tunnel construction Download PDFInfo
- Publication number
- CN203319570U CN203319570U CN2013203719008U CN201320371900U CN203319570U CN 203319570 U CN203319570 U CN 203319570U CN 2013203719008 U CN2013203719008 U CN 2013203719008U CN 201320371900 U CN201320371900 U CN 201320371900U CN 203319570 U CN203319570 U CN 203319570U
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- bailey
- truss
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- cantilever
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Abstract
The utility model relates to a cantilever jib crane for tunnel construction. The cantilever jib crane comprises a main truss, a traveling mechanism, a bailey truss component, a lifting device and a balance component, wherein the rear part of the bailey truss component is connected to the main truss and the front part of the bailey truss is suspended; the main truss at least comprises three portal trusses; each portal truss is formed by connecting a cross beam, two upright posts and two bracing pieces; the main truss also comprises a bracket connected with the middle and upper part of each of the upright posts on two sides of one portal truss at the front end of the main truss; the bailey truss component comprises two groups of bailey beam assemblies arranged in parallel; each group of bailey beam assemblies is composed of four bailey beams; the bailey truss component also comprises two groups of transverse supporting frames in the front of the bailey truss component. According to the cantilever jib crane, a channel inverted arch mold frame can be quickly and conveniently moved, the inverted arch construction progress is quickened, the template is effectively protected, the appearance quality of formed concrete is improved, and meanwhile the cantilever jib crane is compatible with the functions of tunnel water prevention work and lifting work of heavy machines and equipment in tunnels.
Description
Technical field
The utility model relates to the constructing tunnel device, is specifically related to a kind of cantilever for constructing tunnel purlin and hangs.
Background technology
Along with the development of high speed railway construction cause, the constructing tunnel of growing up is more and more, also more and more higher to construction safety, the requirements for quality in tunnel.Chinese Railway main office (the former Ministry of Railways) has put into effect " about the notice of further clear and definite weak surrounding rock and unfavorable geology Design of Railway Tunnel construction relevant technologies regulation " ([2010] No. 120 files of iron construction) for this reason, after the clear tunnel excavation, primary support should apply in time and seal into ring, and IV, V, VI level country rock detent position and face distance must not be greater than 35m.For guaranteeing safe step pitch requirement, expensive wide railroad utility model the tunnel invert mould bases, the move mode of its mould bases adopts 8t winch traction migration, needs excavating machine, forklift to coordinate movable trestle simultaneously.Roughening due to excavating machine, loader operation, cause template deformation, thrashing out of shape, and the practical manner that scene replaces is still that excavating machine, forklift are dilatory mobile, finally causes the Surface Quality of Concrete of inverted arch mobile formwork moulding poor.
Summary of the invention
The purpose of this utility model is to provide a kind of cantilever for constructing tunnel purlin and hangs; it can be fast, mobile tunnel invert mould bases easily; accelerate the inverted arch construction speed; actv. protection template; concrete presentation quality after the raising moulding, the function of the lifting operation of heavy machinery equipment in compatible waterproofing of tunnel operation simultaneously and tunnel.
Hang a kind of cantilever for constructing tunnel described in the utility model purlin, comprise main couple, be connected to that traveling gear, rear portion below main couple is connected to above main couple and anterior unsettled Bailey truss member, be connected to Bailey truss member front portion lifting appliance, be located at the balance component above the main couple rearward end, it is characterized in that:
Described main couple at least comprises three " door " font truss, every " door " font truss is connected and composed by a crossbeam, two root posts and two diagonal braces, also comprise the upside crossbeam (24) between two heel posts that are connected to each sheet " door " font truss, middle side crossbeam and strut, also comprise the bracket that is connected to described main couple front end a slice " door " font truss two heel post middle and upper parts;
Described Bailey truss member comprises two groups of Bailey beam assemblies that be arranged in parallel, and every group of Bailey beam assembly consists of four Pin Bailey beams, and every Pin Bailey beam is connected and composed by seven Bailey brackets, at the connecting portion of two Bailey brackets, is provided with bracing frame; Also comprise many horizontal pressure beams that are located at above every group of Bailey beam module back, the rear portion of every group of Bailey beam assembly is fixedly connected with many crossbeams on described main couple respectively with the finish rolling thread rod by many horizontal pressure beams; Also comprise two groups of cross-tie frameworks that are located on described Bailey truss member front portion.
Further, described traveling gear comprises two walking beams that be arranged in parallel, four groups of hinged motor ground-engaging wheels of two ends below two walking beams respectively, described four groups of motor ground-engaging wheels respectively be located at sleeper on two rail that be arranged in parallel coordinate; The lower end of described main couple both sides is fixedly connected with described two walking beams respectively; Described motor ground-engaging wheel is provided with electrical motor.
Further, described cross-tie framework comprises the cross sill that is fixedly connected on below described Bailey truss member front portion, be fixedly connected on entablatrance above described Bailey truss member front portion, connect cross sill and entablatrance four montants between two groups of Bailey beam assemblies, described four montants equidistantly distribute with cross sill and entablatrance and form three rectangle frames, be respectively equipped with Cross Braced in the rectangle frame of left part and right part, be provided with the intersection Cross Braced in the rectangle frame at middle part.
Further, described lifting appliance is four electric blocks, and two electric blocks respectively are connected on the cross sill of described two groups of cross-tie frameworks.
Further, described balance component is two block concrete clump weights, and described two block concrete clump weights are by the beam supporting of a slice " door " font truss that is located at two inverse-T-shaped crossbeams above described main couple rearward end and described main couple rear end.
The utility model is mobile because the tethered sliding by original mobile formwork changes the low latitude lifting into, changes original only can vertically moving into vertical, transverse shifting, so can avoid lifting unsettled collision simultaneously; Row simple to operate, accurate, easy, not only play good result to template protection, and Surface Quality of Concrete is protected; Can also compatible waterproofing of tunnel operation platform and other lifting operations.
The accompanying drawing explanation
Fig. 1 is structure of the present utility model institute schematic diagram;
Fig. 2 is the I-I of Fig. 1, the semisectional view at II-II position;
Fig. 3 is the schematic diagram that the cross-tie framework is connected with the Bailey truss member;
Fig. 4 is that the utility model is used constitution diagram in tunnel.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, hang described a kind of cantilever for constructing tunnel purlin, comprise main couple, be connected to that traveling gear, rear portion below main couple is connected to above main couple and anterior unsettled Bailey truss member, be connected to Bailey truss member front portion lifting appliance, be located at the balance component above the main couple rearward end;
Described main couple comprises four " door " font truss, every " door " font truss is connected and composed by a crossbeam 21, two root posts 22 and two diagonal braces 23, also comprise the upside crossbeam 24 between two heel posts that are connected to each sheet " door " font truss, middle side crossbeam 25 and strut 26, also comprise the bracket 27 that is connected to described main couple front end a slice " door " font truss two heel post middle and upper parts.
Described Bailey truss member comprises two groups of Bailey beam assemblies 31 that be arranged in parallel, and every group of Bailey beam assembly consists of four Pin Bailey beams, and every Pin Bailey beam is connected and composed by seven Bailey brackets, at the connecting portion of two Bailey brackets, is provided with bracing frame 32; Also comprise many horizontal pressure beams 33 that are located at above every group of Bailey beam assembly 31 rear portions, the rear portion of every group of Bailey beam assembly is fixedly connected with the many crossbeams 21 on described main couple respectively with finish rolling thread rod 34 by many horizontal pressure beams 33; Also comprise two groups of cross-tie frameworks 8 that are located on described Bailey truss member front portion; Described cross-tie framework comprises the cross sill 81 that is fixedly connected on below described Bailey truss member front portion, be fixedly connected on entablatrance 82 above described Bailey truss member front portion, connect cross sill and entablatrance four montants 83 between two groups of Bailey beam assemblies 31, described four montants equidistantly distribute with cross sill and entablatrance and form three rectangle frames, be respectively equipped with Cross Braced 84 in the rectangle frame of left part and right part, be provided with intersection Cross Braced 85 in the rectangle frame at middle part.
Described traveling gear comprises two walking beams that be arranged in parallel 1, four groups of hinged motor ground-engaging wheels 2 of two ends below two walking beams respectively, described four groups of motor ground-engaging wheels respectively be located at sleeper 4 on two rail that be arranged in parallel 3 coordinate; The lower end of described main couple both sides is fixedly connected with described two walking beams 1 respectively; Described motor ground-engaging wheel 2 is provided with electrical motor 5.
Described lifting appliance is four electric blocks 7, and two electric blocks 7 respectively are connected on the cross sill 81 of described two groups of cross-tie frameworks 8.
Described balance component is two block concrete clump weights 6, and every weight is 5 tons; Described two block concrete clump weights are by crossbeam 21 supportings of a slice " door " font truss that is located at two inverse-T-shaped crossbeams 28 above described main couple rearward end and described main couple rear end.
Using method of the present utility model comprises the following steps:
Step 1: after the inverted arch pouring concrete, wait for that cement concrete reaches design concrete strength 80%, lays steel sleeper and rail;
Step 2: the excavation inverted arch, slag tap, scarfing cinder, first pneumatically placed concrete;
Step 3: two of left and right of lifting inverted arch trestle moves forward to excavation inverted arch position respectively;
Step 4: after move this cantilever purlin and hang, lift by crane inverted arch end mould and short sidewall template to excavating the inverted arch position simultaneously, Template Location after-pouring cement concrete, enter next circulation.
The beneficial effects of the utility model:
(1) combine the advantage of gauntry crane and Bailey beam, in conjunction with lever principle, counterweight is set, reduce the cantilever purlin and hang laid down cost;
(2) realized that main couple is hung in the cantilever purlin and the waterproofing of tunnel operation platform merges, saved construction cost;
(3) strengthened vertical lifting ability in the tunnel of narrow space originally;
(4) increase the service life of inverted arch mobile formwork, improved it and moved alerting ability, guaranteed tunnel invert construction Surface Quality of Concrete;
(5) ensured that each operation construction simultaneous equation of constructing tunnel advances, and has avoided the state of attending to one thing and lose sight of another to occur.
Claims (5)
1. hang the purlin of the cantilever for constructing tunnel, comprise main couple, be connected to that traveling gear, rear portion below main couple is connected to above main couple and anterior unsettled Bailey truss member, be connected to Bailey truss member front portion lifting appliance, be located at the balance component above the main couple rearward end, it is characterized in that:
Described main couple at least comprises three " door " font truss, every " door " font truss is connected and composed by a crossbeam (21), two root posts (22) and two diagonal braces (23), also comprise upside crossbeam (24), middle side crossbeam (25) and strut (26) between two heel posts that are connected to each sheet " door " font truss, also comprise the bracket (27) that is connected to described main couple front end a slice " door " font truss two heel post middle and upper parts;
Described Bailey truss member comprises two groups of Bailey beam assemblies (31) that be arranged in parallel, and every group of Bailey beam assembly consists of four Pin Bailey beams, and every Pin Bailey beam is connected and composed by seven Bailey brackets, at the connecting portion of two Bailey brackets, is provided with bracing frame (32); Also comprise and be located at the many piece horizontal pressure beams (33) of every group of Bailey beam assembly (31) above rear portion, the rear portion of every group of Bailey beam assembly is fixedly connected with the many crossbeams (21) on described main couple respectively with finish rolling thread rod (34) by many horizontal pressure beams (33); Also comprise the two groups of cross-tie frameworks (8) that are located on described Bailey truss member front portion.
2. hang a kind of cantilever for constructing tunnel according to claim 1 purlin, it is characterized in that: described traveling gear comprises two walking beams that be arranged in parallel (1), hinged four groups of motor ground-engaging wheels (2) in two ends below two walking beams respectively, described four groups of motor ground-engaging wheels respectively be located at sleeper (4) on two rail that be arranged in parallel (3) coordinate; The lower end of described main couple both sides is fixedly connected with described two walking beams (1) respectively; Described motor ground-engaging wheel (2) is provided with electrical motor (5).
3. hang a kind of cantilever for constructing tunnel according to claim 1 and 2 purlin, it is characterized in that: described cross-tie framework (8) comprises the cross sill (81) be fixedly connected on below described Bailey truss member front portion, be fixedly connected on the entablatrance (82) above described Bailey truss member front portion, connect cross sill and entablatrance and be positioned at four montants (83) between two groups of Bailey beam assemblies (31), described four montants equidistantly distribute with cross sill and entablatrance and form three rectangle frames, be respectively equipped with Cross Braced (84) in the rectangle frame of left part and right part, be provided with intersection Cross Braced (85) in the rectangle frame at middle part.
4. hang a kind of cantilever for constructing tunnel according to claim 1 and 2 purlin, it is characterized in that: described lifting appliance is four electric blocks (7), and two electric blocks (7) respectively are connected on the cross sill (81) of described two groups of cross-tie frameworks (8).
5. hang a kind of cantilever for constructing tunnel according to claim 1 and 2 purlin, it is characterized in that: described balance component is two block concrete clump weights (6), and described two block concrete clump weights are by crossbeam (21) supporting of a slice " door " font truss that is located at two inverse-T-shaped crossbeams (28) above described main couple rearward end and described main couple rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203719008U CN203319570U (en) | 2013-06-26 | 2013-06-26 | Cantilever jib crane for tunnel construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203719008U CN203319570U (en) | 2013-06-26 | 2013-06-26 | Cantilever jib crane for tunnel construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203319570U true CN203319570U (en) | 2013-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203719008U Expired - Fee Related CN203319570U (en) | 2013-06-26 | 2013-06-26 | Cantilever jib crane for tunnel construction |
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| Country | Link |
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| CN (1) | CN203319570U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274309A (en) * | 2013-06-26 | 2013-09-04 | 中铁八局集团第一工程有限公司 | Cantilever truss crane for tunnel construction |
-
2013
- 2013-06-26 CN CN2013203719008U patent/CN203319570U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274309A (en) * | 2013-06-26 | 2013-09-04 | 中铁八局集团第一工程有限公司 | Cantilever truss crane for tunnel construction |
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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: 20131204 Termination date: 20140626 |
|
| EXPY | Termination of patent right or utility model |