CN206581301U - The immersed tube tunnel bottom plate and discharge structure of a kind of ribbing beam - Google Patents

The immersed tube tunnel bottom plate and discharge structure of a kind of ribbing beam Download PDF

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Publication number
CN206581301U
CN206581301U CN201720025560.1U CN201720025560U CN206581301U CN 206581301 U CN206581301 U CN 206581301U CN 201720025560 U CN201720025560 U CN 201720025560U CN 206581301 U CN206581301 U CN 206581301U
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China
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immersed tube
tube tunnel
plate
concrete
piping lane
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贺维国
张先锋
江水德
张伟
江婕瑞
杨世东
朱剑平
徐韬
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China Railway Liuyuan Group Co Ltd
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CRTG Survey and Design Institute Co Ltd
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Abstract

The utility model discloses a kind of immersed tube tunnel bottom plate of ribbing beam and discharge structure, it is related to the technical field of immersed tube tunnel engineering construction under water.Its immersed tube tunnel external wall is located at outside immersed tube tunnel, immersed tube tunnel interior wall is located at centre, runway piping lane bottom is provided with immersed tube tunnel bottom plate, immersed tube tunnel bottom plate is provided with girt strip, armpit angle is being provided with across end, groove is provided between girt strip, when immersed tube cube transportation is to design attitude, injection water in groove between girt strip, immersed tube tube coupling sinks, after docking, it is plain concrete in groove between girt strip, the top surface of plain concrete and girt strip is provided with concrete sloping layer, concrete sloping layer top surface is provided with supercrust, the side of supercrust and concrete sloping layer is provided with draining trench, the plate top surface of middle piping lane is provided with big gutter, drainpipe is provided with plain concrete between two girt strips.The utility model has the beneficial effect that:It can save immersed tube tunnel arrangement of reinforcement and construction costs, facilitate immersed tube cube transportation, sink and dock.

Description

The immersed tube tunnel bottom plate and discharge structure of a kind of ribbing beam
Technical field
The utility model is related to the technical field of immersed tube tunnel engineering construction under water, and in particular to a kind of immersed tube tunnel of ribbing beam Road bottom plate and discharge structure.
Background technology
Immersed tube tunnel refers in dry-docking prefabricated tube section, the submerged tunnel built by modes such as transportation by driving, sinking, docking.Root According to functional requirement is used, Class I highway three lanes tunnel (80km/h) track clearance clear span about needs 13.8m, track clearance height For 4.5m or 5.0m, immersed tube tunnel is generally partially flat rectangular cross section, and immersed tube tunnel typically uses reinforced concrete structure.Example Such as, the Nanchang Ganjiang River big 1200mm of Class I highway three lanes immersed tube tunnel base arrangement thickness under water, top is additionally provided with 800mm- Plain concrete layer thick 900mm, using the effect of the weight resistance immersed tube tunnel buoyancy of plain concrete layer, and structure base slab section Bearing capacity and crack, which are calculated, does not consider plain concrete thickness degree.
Current immersed tube tunnel bottom plate typically uses steel concrete plate, and base arrangement section bearing capacity and crack are calculated not Consider that fill concrete is participated in, structure type has to be optimized.Immersed tube tunnel sink when, it is necessary into immersed tube tunnel water filling ballast, Need to apply ballast water tank inside immersed tube, water tank makes, dismounting and transport need an expense, and underplate concrete compares in addition Thickness, strength grade of concrete is higher, belongs to casting of concrete in mass, and bottom plate easily ftractures, in order to control concrete hardening The heat that journey is produced increases operating expenses, it is necessary to take cooling measure.
Utility model content
The purpose of this utility model is to close there is provided a kind of simple in construction, design for the defect and deficiency of prior art Reason, easy to use, ribbing beam immersed tube tunnel bottom plate and discharge structure, it can save immersed tube tunnel arrangement of reinforcement and construction costs, Facilitate immersed tube cube transportation, sink and dock.
In order to solve the problems existing in background technology, the technical solution adopted in the utility model is:It includes immersed tube tunnel Road bottom plate, girt strip, groove, plain concrete, concrete sloping layer, supercrust, armpit angle, draining trench, big gutter, drainpipe, Immersed tube tunnel external wall, immersed tube tunnel interior wall;Immersed tube tunnel is included in the runway piping lane and middle piping lane of both sides setting, described Immersed tube tunnel external wall is located at outside immersed tube tunnel, and immersed tube tunnel interior wall is located at centre, and runway piping lane bottom is provided with immersed tube tunnel Road bottom plate, immersed tube tunnel bottom plate is that longitudinally spaced certain distance is provided with girt strip on armoured concrete slab, immersed tube tunnel bottom plate, Groove is provided with being provided with across end between armpit angle, girt strip, when immersed tube cube transportation is to design attitude, the girt strip of immersed tube tunnel bottom plate Between groove in injection water, immersed tube tube coupling sinks, after docking, and the water between girt strip in groove replaces with plain concrete, and element is mixed Solidifying soil top surface and girt strip top surface are mutually neat, and the top surface of plain concrete and girt strip is provided with concrete sloping layer, concrete sloping layer top surface The side of supercrust provided with runway piping lane, supercrust and concrete sloping layer is provided with draining trench, middle piping lane along longitudinal direction Using steel concrete plate, the plate top surface of middle piping lane is provided with the plain concrete between big gutter, two girt strips along longitudinal direction In be provided with drainpipe, the longitudinally spaced certain distance of drainpipe is set, and the two ends of drainpipe connect runway piping lane respectively The big gutter of draining trench and middle piping lane.
After said structure, the utility model has the beneficial effect that:
1st, using the immersed tube tunnel reinforced concrete floor of ribbing beam, base arrangement section is higher, makes full use of backfill layer Space, structure base slab arrangement of reinforcement is few, saves steel;
2nd, tube coupling lighter in weight, cube transportation, sinking and docking are convenient;
3rd, groove substitutes ballast water tank, saves the making of ballast water tank, installation and dismounting etc.;
4th, construction costs is saved.
Brief description of the drawings
Fig. 1 is planar structure schematic diagram of the present utility model;
Fig. 2 is A-A cross-sectional views of the present utility model;
Fig. 3 is B-B cross-sectional views of the present utility model (transportation by driving, sinking and docking operating mode);
Fig. 4 is B-B cross-sectional views (applying working condition) of the present utility model;
Fig. 5 is the immersed tube tunnel bottom plate and discharge structure 1-1 profiles of current conventional design;
Fig. 6 is the immersed tube tunnel bottom plate span centre arrangement of reinforcement schematic diagram of current conventional design;
Fig. 7 is the immersed tube tunnel bottom plate span centre arrangement of reinforcement schematic diagram of ribbing beam of the present utility model;
Fig. 8 is the immersed tube tunnel bottom plate of ribbing beam of the present utility model across end arrangement of reinforcement schematic diagram.
Description of reference numerals:1- immersed tube tunnel bottom plates, 2- girt strips, 3- grooves, 4- plain concretes, 5- concrete sloping layers, 6- supercrusts, 7- armpits angle, 8- draining trench, the big gutters of 9-, 10- drainpipes, 11- immersed tube tunnel external walls, 12- immersed tube tunnels Interior wall.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is further described.
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and specifically Embodiment, the utility model is further elaborated.It should be appreciated that embodiment described herein is only used To explain the utility model, it is not used to limit the utility model.
Embodiment one:
As shown in Figure 5 and Figure 6, certain the municipal immersed tube tunnel routinely designed, is designed as two-way six-lane, both sides are provided with row Track piping lane, provided with middle piping lane, runway piping lane clear span 12.4m, middle piping lane span width 2.0m, wall thickness on the outside of immersed tube tunnel Wall thickness 0.6m in 1.0m, immersed tube tunnel, base plate thickness 1.2m are spent, bottom end is provided with armpit angle, and runway piping lane armpit angle is high 0.4m, runway piping lane armpit angular breadth 1.2m, the middle high 0.4m in piping lane armpit angle, middle piping lane armpit angular breadth 0.4m, plain concrete Return lift thickness about 0.7m~0.8m (backfill layer top surface has 1% gradient, higher by middle piping lane side supercrust), plain coagulation Earthen backfill layer top set asphalt concrete pavement thickness degree 0.1m, supercrust has 1% gradient, have in supercrust side 200mm × 60mm gutter, the big gutters of 350mm × 350mm are provided with the bottom of draining trench, and big gutter is located at plain concrete and returned In packing course, the water of draining trench introduces big gutter by drainpipe.
Base arrangement arrangement of reinforcement is shown in Fig. 7, and the high H1=1.2m of runway bottom plate spaning middle section, top layer matches somebody with somebody lateral stressed muscle and longitudinal direction Distributing reinforcement is principal rod, and lateral stressed muscle area is Ah1, and genesis analysis muscle area Az1, section transverse bending moment is M1.According to steel Reinforced concrete by curved section bearing capacity Computing Principle, M1=,For constant,For rebar design intensity.Institute So that under same cross-sectional Moment, depth of section increase, section principal rod area Ah1 is reduced, genesis analysis muscle area Az1 mono- As take the 0.15% of bottom plate area of section.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of ribbing beam immersed tube tunnel bottom plate designed using the utility model and row Water-bound, both sides are provided with runway piping lane, and centre is provided with middle piping lane, runway piping lane clear span 12.4m, middle piping lane span width 2.0m, the thickness 1.0m of immersed tube tunnel external wall 11, the thickness 0.6m of immersed tube tunnel interior wall 12, the thickness 0.6m of immersed tube tunnel bottom plate 1, rib The height of beam 2 (top surface of girt strip 2 to the bottom surface of immersed tube tunnel bottom plate 1) is 1.8m, the width 1.0m of girt strip 2, the center spacing 3.0m of girt strip 2, The clear span 2.0m of groove 3 between girt strip 2, the end (plate and side wall node) of immersed tube tunnel bottom plate 1 is provided with armpit angle 7, and armpit angle 7 is high 1.2m, the width 2.0m of armpit angle 7, the depth about 0.6m~0.7m of groove 3, plain concrete 4 and the top surface of girt strip 2 set concrete sloping layer 5, The thickness 60mm of concrete sloping layer 5~180mm, concrete sloping layer 5 has 1% gradient, close to centre piping lane concrete sloping layer 5 is higher, and the top surface of concrete sloping layer 5 sets supercrust 6, the thickness 0.1m of supercrust 6, and supercrust 6 uses bituminous concrete, on road surface There is 200mm × 160mm draining trench 8 layer 6 and the side of concrete sloping layer 5;Middle piping lane uses steel concrete plate, plate Thick 1.2m, the high 0.4m in armpit angle 7, the width 0.4m of armpit angle 7, middle piping lane in the soleplate between along longitudinal direction set big gutter 9, big gutter 9 are located at middle piping lane plate top surface, big gutter 9 clear span 800mm, the big depth 400mm of gutter 9, the big wall thickness of gutter 9 150mm;The water of runway piping lane draining trench 8 introduces the big gutter 9 of middle piping lane by drainpipe 10, and drainpipe 10 is set In the plain concrete 4 of groove 3, and through immersed tube tunnel interior wall 12, the spacing 9.0m of drainpipe 10, drainpipe 10 uses pvc pipe, Diameter 50mm, pvc pipe wall thickness 5mm.
Immersed tube runway ribbing bottom plate spaning middle section arrangement of reinforcement of the present utility model is shown in Fig. 8, and runway spaning middle section is inverted T shaped Beam, inverted T shaped deck-molding H2=1.8m, the inverted T shaped lateral stressed muscle of beam fits over the top of girt strip 2, and lateral stressed muscle area is Ah2, and span centre is cut Face transverse bending moment is M1;According to Concrete Section in Bending bearing capacity calculation principle, M1=,To be normal Number,For rebar design intensity.So, ribbing bottom plate depth of section H2 of the present invention substantially than H1 increase, spaning middle section laterally by Power muscle is significantly reduced than conventional design.The thickness of immersed tube tunnel bottom plate 1 of the present utility model only has the 50% of conventional design, so, Genesis analysis muscle area reduces 50% than conventional design genesis analysis muscle;The immersed tube tunnel bottom plate 1 of ribbing beam 2 of the present utility model, In transportation by driving, sink and every 2.92 cubic metres of the concrete of linear meter(lin.m.) reduction of docking operating mode, i.e., about reduce by 6.7 tons/m, if often saving immersed tube Length is designed by 100m, and the weight for often saving immersed tube reduces 670 tons, and immersed tube weight is reduced, and can facilitate immersed tube transportation by driving and docking.
Embodiment two:
As shown in Figure 5 and Figure 6, certain municipal immersed tube tunnel, original is designed as two-way six-lane, and both sides are provided with runway piping lane, Provided with middle piping lane, runway piping lane clear span 12.4m, middle piping lane span width 2.0m, wall thickness 1.0m on the outside of immersed tube tunnel sink Wall thickness 0.6m in pipe tunnel, base plate thickness 1.2m, bottom end are provided with armpit angle, the runway piping lane armpit high 0.4m in angle, runway Piping lane armpit angular breadth 1.2m, the middle high 0.4m in piping lane armpit angle, middle piping lane armpit angular breadth 0.4m, plain concrete return lift thickness about At the top of 0.7m~0.8m (backfill layer top surface has 1% gradient, higher by middle piping lane side supercrust), plain concrete backfill layer If asphalt concrete pavement thickness degree 0.1m, supercrust has 1% gradient, has 200mm × 60mm draining in supercrust side Ditch, the big gutters of 350mm × 350mm are provided with the bottom of draining trench, and big gutter is located in plain concrete backfill layer, float The water in ditch introduces big gutter by drainpipe.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of ribbing beam immersed tube tunnel bottom plate designed using the utility model and row Water-bound, both sides are provided with runway piping lane, provided with middle piping lane, runway piping lane clear span 12.4m, middle piping lane span width 2.0m, the thickness 1.0m of immersed tube tunnel external wall 11, the thickness 0.6m of immersed tube tunnel interior wall 12, the thickness 0.6m of immersed tube tunnel bottom plate 1, rib The height of beam 2 (top surface of girt strip 2 to the bottom surface of immersed tube tunnel bottom plate 1) is 1.8m, the width 1.0m of girt strip 2, the center spacing 4.0m of girt strip 2, The clear span 3.0m of groove 3 between girt strip 2, the end (plate and side wall node) of immersed tube tunnel bottom plate 1 is provided with armpit angle 7, and armpit angle 7 is high 1.2m, the width 2.0m of armpit angle 7;The depth about 0.6m~0.7m of groove 3, plain concrete 4 and the top surface of girt strip 2 set concrete sloping layer 5, the thickness 60mm of concrete sloping layer 5~180mm, concrete sloping layer 5 has 1% gradient, and the concrete close to centre piping lane is looked for Slope layer 5 is higher, and the top surface of concrete sloping layer 5 sets supercrust 6, and the thickness 0.1m of supercrust 6, supercrust 6 uses bituminous concrete, There is 200mm × 160mm draining trench 8 supercrust 6 and the side of concrete sloping layer 5, and middle piping lane is flat using armored concrete Plate, thickness of slab 1.2m, the high 0.4m in armpit angle 7, the width 0.4m of armpit angle 7, middle piping lane in the soleplate between along longitudinal direction set big gutter 9, greatly Gutter 9 is located at middle piping lane plate top surface, big gutter 9 clear span 800mm, the big depth 400mm of gutter 9, the big wall of gutter 9 Thick 150mm;The water of runway piping lane draining trench 8 introduces the big gutter 9 of middle piping lane by drainpipe 10, and drainpipe 10 is set Put in the plain concrete 4 of groove 3, and through immersed tube tunnel interior wall 12, the spacing 9.0m of drainpipe 10, drainpipe 10 uses PVC Pipe, diameter 50mm, pvc pipe wall thickness 5mm.The immersed tube tunnel bottom plate 1 of ribbing beam 2 of the present utility model, in transportation by driving, sinks and docking Operating mode reduces 5.0 cubic metres of concrete per linear meter(lin.m.), i.e., about reduce by 11.5 tons/m, if often section immersed tube length is designed by 100m, often The weight for saving immersed tube reduces 1150 tons, and immersed tube weight is reduced, and can facilitate immersed tube transportation by driving, sink and dock.
Present embodiment uses the immersed tube tunnel reinforced concrete floor of ribbing beam, and base arrangement section is higher, fills Divide using sheaf space is backfilled, structure base slab arrangement of reinforcement is few, save steel;Tube coupling lighter in weight, cube transportation, sinking and docking side Just;Groove substitutes ballast water tank, saves the making of ballast water tank, installation and dismounting etc.;Save construction costs.
It is described above, only to illustrate the technical solution of the utility model and unrestricted, those of ordinary skill in the art couple Other modifications or equivalent substitution that the technical solution of the utility model is made, without departing from technical solutions of the utility model Spirit and scope, all should cover among right of the present utility model.

Claims (3)

1. the immersed tube tunnel bottom plate and discharge structure of a kind of ribbing beam, it is characterised in that including immersed tube tunnel bottom plate, girt strip, recessed Groove, plain concrete, concrete sloping layer, supercrust, armpit angle, draining trench, big gutter, drainpipe, immersed tube tunnel external wall, Immersed tube tunnel interior wall;Immersed tube tunnel is included in the runway piping lane and middle piping lane of both sides setting, the immersed tube tunnel external wall It is located at outside immersed tube tunnel, immersed tube tunnel interior wall is located at centre, runway piping lane bottom is provided with immersed tube tunnel bottom plate, immersed tube tunnel Bottom plate is that longitudinally spaced fixed range is provided with girt strip on armoured concrete slab, immersed tube tunnel bottom plate, and end is being provided with armpit Groove is provided between angle, girt strip.
2. the immersed tube tunnel bottom plate and discharge structure of a kind of ribbing beam according to claim 1, it is characterised in that immersed tube pipe When saving transportation by driving to design attitude, water is marked with the groove between the girt strip of immersed tube tunnel bottom plate, after the sinking of immersed tube tube coupling, docking, Water between girt strip in groove replaces with plain concrete, and plain concrete top surface and girt strip top surface are mutually neat, plain concrete and girt strip Top surface is provided with concrete sloping layer, and concrete sloping layer top surface is provided with the supercrust of runway piping lane.
3. the immersed tube tunnel bottom plate and discharge structure of a kind of ribbing beam according to claim 1, it is characterised in that the road The side of surface layer and concrete sloping layer is provided with draining trench along longitudinal direction, and middle piping lane uses steel concrete plate, intervalve The plate top surface of corridor is provided with the plain concrete between big gutter, two girt strips along longitudinal direction and is provided with drainpipe, and drainpipe edge is vertical Set to interval fixed range, the two ends of drainpipe connect the big draining of the draining trench and middle piping lane of runway piping lane respectively Ditch.
CN201720025560.1U 2017-01-11 2017-01-11 The immersed tube tunnel bottom plate and discharge structure of a kind of ribbing beam Active CN206581301U (en)

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GR01 Patent grant
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TR01 Transfer of patent right

Effective date of registration: 20180627

Address after: 300000 Tianjin Binhai New Area Free Trade Zone (Airport Economic Zone), 2-3116 South Road 88.

Patentee after: CHINA RAILWAY LIUYUAN GROUP CO., LTD.

Address before: 300000 Hebei Avenue, new Hongqiao, Hongqiao District, Tianjin City, No. 1

Patentee before: Zhongtie Tunnel Survey and Design Inst., Ltd.

TR01 Transfer of patent right