CN104088657B - The flue sheet structure of tunnel exhast duct - Google Patents
The flue sheet structure of tunnel exhast duct Download PDFInfo
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- CN104088657B CN104088657B CN201410371193.1A CN201410371193A CN104088657B CN 104088657 B CN104088657 B CN 104088657B CN 201410371193 A CN201410371193 A CN 201410371193A CN 104088657 B CN104088657 B CN 104088657B
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Abstract
The invention discloses the flue sheet structure of a kind of tunnel exhast duct, comprise some prefabricated flue plates, described prefabricated flue plate splices successively along length of tunnel direction, the cross section of described prefabricated flue plate is arch, described prefabricated flue plate has a protruding end face, concave bottom surfaces and two docking end faces, butt end described in two is arranged towards the back of the body, described protruding end face and described concave bottom surfaces are arranged on described in two docks between end face, protruding end face is in above concave bottom surfaces, the junction of two docking end faces and protruding end face is all formed with strip breach, contiguous prefabricated flue plate is docked by described docking end face and described breach, cast-in-situ steel reinforced concrete is filled with in described breach.The present invention adopts domes plate, the Long-term Deflection under dead load effect can be weakened, the infiltration of tunnel vault simultaneously enters in tunnel drainage ditch, to reduce the impact of wet environment on plant equipment in flue after can being collected to flue sheet both sides by the arch gradient.
Description
Technical field
The present invention relates to the technical field of flue sheet structure design, particularly relate to the flue sheet structure of a kind of tunnel exhast duct.
Background technology
For meeting the comfortableness in tunnel normal operation situation and the safety under extreme case (fire), major long tunnel will arrange mechanical type ventilation smoke extraction system usually.The design of current tunnel smoke evacuation combines with draft type substantially, is ventilation function, meets the requirement of ring control in normal condition; And being smoke evacuation, Tobacco Control function in case of fire, its main purpose is that personnel create safe evacuation route and help firefighter to arrive scene of fire smoothly by bus.
The mode of smoke evacuation can be classified as two kinds: horizontal fume exhausting type and longitudinal fume exhausting type.Transversal ventilation mode arranges air outlet and exhast duct on top, tunnel, and in tunnel, gas is drained in the isolated exhast duct of tunnel top by the air outlet of tunnel top, then discharge extraneous by special vertical shaft or air outlet.Longitudinal ventilation mode exactly by producing longitudinally distinguished and admirable achieving the goal in tunnel.To sum up, beam wind realizes primarily of blower fan horizontal in the jet blower be arranged in exhast duct and tunnel, when tunnel ventilation, does not substantially produce the wind of longitudinal flow in tunnel, only has the beam wind that faint longitudinal natural wind and blower fan produce.In shield tunnel, because shield structure is generally circular cross section, the space that tunnel upper is vacated can as exhast duct.Domestic and international each conflagration test room passes through the multiple method such as full-scale test, CFD simulation, to flow of flue gas feature extraction ventilation smoke exhaust standard during tunnel fire hazard.PIARC issued " FireandSmokeControlinRoadTunnels05.05.B " in 1999, within 2004, issue directive/guides such as " SystemsandEquipmentforFireandSmokeControlinRoadTunnels ", determined in tunnel fire hazard scene, plume control, improve detailed requirement and suggestion in structural design for fire safety criterion etc.Smog control in limited range, can be improved the evacuation condition of blocking operating mode by the emphasis smoke evacuation technology that such as tunnel, Tokyo Bay, Shanghai Changjiang River tunnel use.
So-called smoke evacuation system refers to along tunnel upper longitudinal and arranges smoke vent opening to a determining deviation, under fire working, realizes the control to flow of flue gas in tunnel by opened smoke-discharging mouth, for tunnel evacuation and fire-fighting and rescue provide stable environment.In shield tunnel, particularly in overlength shield tunnel, emphasis smoke evacuation is widely adopted, and smoke vent is arranged on the idle space at circular tunnel top usually, and smoke vent and track, tunnel are separated by flue sheet.
The mode that applies of current flue sheet mainly contains cast-in-place and prefabricated two kinds of modes, and construction period, the surface finish of cast-in-place flue sheet are difficult to engineering demands usually.Prefabricated assembled component has the advantages such as construction is convenient, system easy to control the quality and is widely adopted, and seam quality then becomes the key of assembling flue sheet construction control.Not yet find for similar tunnel flue sheet seam construction both at home and abroad at present, this be in positive/negative-pressure alternating action environment under, must the seam construction of sealing performance be ensured.
Therefore, the applicant is devoted to exploitation one can solve flue internal drainage problem and flue sheet dead load Long-term Deflection problem, and the flue sheet structure of the tunnel exhast duct of raising overall sealing performance.
Summary of the invention
Because the above-mentioned deficiency of prior art, the present invention proposes one can solve flue internal drainage problem and flue sheet dead load Long-term Deflection problem, and the flue sheet structure of the tunnel exhast duct of raising overall sealing performance.
For achieving the above object, the invention provides the flue sheet structure of a kind of tunnel exhast duct, comprise some prefabricated flue plates, described prefabricated flue plate splices successively along length of tunnel direction, the cross section of described prefabricated flue plate is arch, described prefabricated flue plate has a protruding end face, concave bottom surfaces and two docking end faces, butt end described in two is arranged towards the back of the body, described protruding end face and described concave bottom surfaces are arranged on described in two docks between end face, described protruding end face is in above described concave bottom surfaces, the junction of docking end face and described protruding end face described in two is all formed with strip breach, contiguous prefabricated flue plate is docked by described docking end face and described breach, cast-in-situ steel reinforced concrete is filled with in described breach.
Preferably, it is trapezoidal strip groove that two breach of docking are combined to form a cross section, and the described groove notch area be positioned on described protruding end face is less than the groove bottom area of described groove.
Preferably, two inside walls of described groove are equipped with polyethylene and fill out shrouding.
Preferably, contiguous prefabricated flue plate carries out the docking end face that docks is disposed with fireproof seal gum, mineral wool, polyethylene bar, fireproof seal gum and described cast-in-situ steel reinforced concrete by concave bottom surfaces side to protruding top surface side.
Preferably, the protruding end face of described prefabricated flue plate is provided with the silicon powder concrete layer that with the addition of silica flour, the concave bottom surfaces of described prefabricated flue plate is provided with the polypropylene fiber concrete layer that with the addition of polypropylene fibre.
Preferably, polypropylene fibre is added with in described cast-in-situ steel reinforced concrete.
The beneficial effect of the flue sheet structure of tunnel of the present invention exhast duct is as follows:
1) the flue sheet structure of tunnel of the present invention exhast duct adopts domes plate, the Long-term Deflection under dead load effect can be weakened, the infiltration of tunnel vault simultaneously enters in tunnel drainage ditch, to reduce the impact of wet environment on plant equipment in flue after can being collected to flue sheet both sides by the arch gradient.
2) joint form between the prefabricated flue plate of the flue sheet structure of tunnel of the present invention exhast duct, adopting and presetting breach docking Formation cross-section is trapezoidal strip groove, and the groove bottom area that the described groove notch area be positioned on described protruding end face is less than described groove is set, under ensureing negative pressure condition by trapezoidal seam, built-in joint filler is not sucked out.
3) the flue sheet structure of tunnel of the present invention exhast duct also adopts the Waterproof gum etc. with certain hot strength to carry out filleting, meets the sealing performance requirement of seam.
4) the functionally gradient steel concrete of the concrete structure employing factorial praluction of prefabricated flue plate of the present invention is built and is formed, namely, be made up of the concrete that 3 layers are added different additive according to different function requirements, be followed successively by silicon powder concrete layer, conventional concrete layer, polypropylene fiber concrete layer from top to bottom, meet surface roughness, normal carrying, fireproof requirement respectively.
Be described further below with reference to the technique effect of accompanying drawing to design of the present invention, concrete structure and generation, to understand object of the present invention, characteristic sum effect fully.
Accompanying drawing explanation
Fig. 1 is the flue sheet structural representation of specific embodiment tunnel exhast duct.
Fig. 2 is the structural representation of specific embodiment contiguous prefabricated flue plate joint.
Fig. 3 is the A place enlarged diagram of Fig. 2.
Fig. 4 is the application state schematic diagram of the flue sheet of specific embodiment tunnel exhast duct.
Detailed description of the invention
As shown in Figure 1, the flue sheet structure of a kind of tunnel exhast duct of the present embodiment, comprise some prefabricated flue plates 100, prefabricated flue plate 100 splices successively along length of tunnel direction, the cross section of prefabricated flue plate 100 is arch, prefabricated flue plate has a protruding end face 110, concave bottom surfaces 120 and two docking end faces 130, two docking end faces 130 are supported or opposed setting, protruding end face 110 and concave bottom surfaces 120 are arranged between two docking end faces 130, and protruding end face 110 is in above concave bottom surfaces 120.As shown in Figures 2 and 3, two docking end faces 130 are all formed with strip breach 140 with the junction of protruding end face 110, and contiguous prefabricated flue plate is docked by docking end face 130 and breach 140, is filled with cast-in-situ steel reinforced concrete 200 in breach 140.
Shown in composition graphs 2 and Fig. 3, it is trapezoidal strip groove that two breach 140 of docking are combined to form a cross section, the described groove notch area be positioned on protruding end face 110 is less than the groove bottom area of described groove, and on two inside walls of described groove, be equipped with polyethylene fill out shrouding 300, contiguous prefabricated flue plate 100 carries out the docking end face that docks is disposed with fireproof seal gum 400 by concave bottom surfaces 120 side to protruding end face 110 side, mineral wool 500, polyethylene bar 600, fireproof seal gum 400 and cast-in-situ steel reinforced concrete 200, the protruding end face 110 of prefabricated flue plate 100 is provided with the silicon powder concrete layer that with the addition of silica flour, the concave bottom surfaces 120 of prefabricated flue plate 100 is provided with the polypropylene fiber concrete layer that with the addition of polypropylene fibre, polypropylene fibre is added with in cast-in-situ steel reinforced concrete 200.
Exemplary, as shown in Figure 4, the situation that the flue sheet structure of the present embodiment tunnel exhast duct is particularly applicable on shield tunnel is as follows:
The prefabricated flue plate 100 of the present embodiment adopts the functionally gradient steel concrete of factorial praluction to build prefabricated forming, namely, be made up of the concrete that three layers are added different additive by different function requirements, the protruding end face 110 of prefabricated flue plate 100 is built the silicon powder concrete layer that with the addition of silica flour, the concave bottom surfaces 120 of prefabricated flue plate 100 is built the polypropylene fiber concrete layer that with the addition of polypropylene fibre, intermediate layer is conventional concrete layer, meets surface roughness, normal carrying and fireproof requirement respectively.Wherein, also need for the situation of different shield tunnel and demand, the arch angle of adjustment prefabricated flue plate and concrete size, repeat no more herein.
Prefabricated flue plate 100 is transported to the flue sheet erecting yard in shield tunnel, on-site consolidation is carried out in shield tunnel, as shown in Figure 1, polylith prefabricated flue plate 100 is docked successively along length of tunnel direction, carry out at contiguous prefabricated flue plate 100 the docking end face 130 that docks is disposed with fireproof seal gum by concave bottom surfaces side to protruding top surface side, mineral wool, polyethylene bar, fireproof seal gum and described cast-in-situ steel reinforced concrete (shown in figure 2), realize being tightly connected of prefabricated flue plate 100 and form the flue sheet structure of tunnel exhast duct, be applied in as shown in Figure 4 in shield tunnel, the concave bottom surfaces 120 making flue sheet structure meet side, track plays effective fire prevention, the protruding end face 110 smooth surface windage of meeting smoke vent is little, ventilation effect is good, and due to the arcuate surface of its projection and the arch gradient of entirety, solve the drainage problem in flue, better can resist the Long-term Deflection problem of flue structure deadweight simultaneously, connecting structure on the docking end face 130 of contiguous prefabricated flue plate 100 and breach 140 effectively ensure that connection reliability and the sealing performance of interface under the environment of positive/negative-pressure alternating action further.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technician in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (6)
1. the flue sheet structure of a tunnel exhast duct, comprise some prefabricated flue plates, described prefabricated flue plate splices successively along length of tunnel direction, it is characterized in that: the cross section of described prefabricated flue plate is arch, described prefabricated flue plate has a protruding end face, concave bottom surfaces and two docking end faces, butt end described in two is arranged towards the back of the body, described protruding end face and described concave bottom surfaces are arranged on described in two docks between end face, described protruding end face is in above described concave bottom surfaces, the junction of docking end face and described protruding end face described in two is all formed with strip breach, contiguous prefabricated flue plate is docked by described docking end face and described breach, cast-in-situ steel reinforced concrete is filled with in described breach.
2. the flue sheet structure of tunnel as claimed in claim 1 exhast duct, it is characterized in that: it is trapezoidal strip groove that two breach of docking are combined to form a cross section, and the described groove notch area be positioned on described protruding end face is less than the groove bottom area of described groove.
3. the flue sheet structure of tunnel as claimed in claim 2 exhast duct, is characterized in that: two inside walls of described groove are equipped with polyethylene and fill out shrouding.
4. the flue sheet structure of the tunnel exhast duct as described in any one of claims 1 to 3, is characterized in that: contiguous prefabricated flue plate carries out the docking end face that docks is disposed with fireproof seal gum, mineral wool, polyethylene bar, fireproof seal gum and described cast-in-situ steel reinforced concrete by concave bottom surfaces side to protruding top surface side.
5. the flue sheet structure of the tunnel exhast duct as described in any one of claims 1 to 3, it is characterized in that: the protruding end face of described prefabricated flue plate is provided with the silicon powder concrete layer that with the addition of silica flour, the concave bottom surfaces of described prefabricated flue plate is provided with the polypropylene fiber concrete layer that with the addition of polypropylene fibre.
6. the flue sheet structure of the tunnel exhast duct as described in any one of claims 1 to 3, is characterized in that: be added with polypropylene fibre in described cast-in-situ steel reinforced concrete.
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| CN201410371193.1A CN104088657B (en) | 2014-07-31 | 2014-07-31 | The flue sheet structure of tunnel exhast duct |
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| CN201410371193.1A CN104088657B (en) | 2014-07-31 | 2014-07-31 | The flue sheet structure of tunnel exhast duct |
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| CN104088657B true CN104088657B (en) | 2016-01-27 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107100661A (en) * | 2017-04-28 | 2017-08-29 | 上海城建物资有限公司 | A kind of prefabricated assembled ultra-high performance concrete flue sheet structure |
| CN107829560A (en) * | 2017-10-30 | 2018-03-23 | 中国三冶集团有限公司 | A kind of flue top plate rapid constructing method |
| CN108266218A (en) * | 2018-03-20 | 2018-07-10 | 上海市城市建设设计研究总院（集团）有限公司 | The prefabricated superposed type ventilation duct structure of subterranean tunnel or gallery |
| CN110344872A (en) * | 2019-08-22 | 2019-10-18 | 中南大学 | Shield tunnel tilts ceiling smoke discharging structure and its construction method |
| CN116291663B (en) * | 2023-03-20 | 2024-04-16 | 中交隧道工程局有限公司 | Flue plate bracket capable of providing horizontal force and flue plate optimal design method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004092074A (en) * | 2002-08-29 | 2004-03-25 | Public Works Research Institute | Ventilator and ventilation method for construction work for expanding width of existing tunnel |
| CN201209312Y (en) * | 2008-05-26 | 2009-03-18 | 姚明起 | General component for flue gas duct |
| CN103321388A (en) * | 2013-06-04 | 2013-09-25 | 张家港市盛港绿色防火建材有限公司 | Fireproof environment-friendly flue plate |
| CN103453230A (en) * | 2013-09-02 | 2013-12-18 | 姚景祥 | Prefabricated member of smoke exhaust and gas exchange pipeline |
| CN204041090U (en) * | 2014-07-31 | 2014-12-24 | 上海市城市建设设计研究总院 | The flue sheet structure of tunnel exhast duct |
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- 2014-07-31 CN CN201410371193.1A patent/CN104088657B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004092074A (en) * | 2002-08-29 | 2004-03-25 | Public Works Research Institute | Ventilator and ventilation method for construction work for expanding width of existing tunnel |
| CN201209312Y (en) * | 2008-05-26 | 2009-03-18 | 姚明起 | General component for flue gas duct |
| CN103321388A (en) * | 2013-06-04 | 2013-09-25 | 张家港市盛港绿色防火建材有限公司 | Fireproof environment-friendly flue plate |
| CN103453230A (en) * | 2013-09-02 | 2013-12-18 | 姚景祥 | Prefabricated member of smoke exhaust and gas exchange pipeline |
| CN204041090U (en) * | 2014-07-31 | 2014-12-24 | 上海市城市建设设计研究总院 | The flue sheet structure of tunnel exhast duct |
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Address after: 200011 Tibet South Road, Shanghai, No. 1170, No. Patentee after: Shanghai urban construction design & Research Institute (Group) Co., Ltd. Address before: 200011 Tibet South Road, Shanghai, No. 1170, No. Patentee before: Shanghai Urban Construction Design & Research Institute |
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