CN210370711U - Waterproof, heat preservation, vapour barrier structure at low temperature tunnel top - Google Patents
Waterproof, heat preservation, vapour barrier structure at low temperature tunnel top Download PDFInfo
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- CN210370711U CN210370711U CN201920699403.8U CN201920699403U CN210370711U CN 210370711 U CN210370711 U CN 210370711U CN 201920699403 U CN201920699403 U CN 201920699403U CN 210370711 U CN210370711 U CN 210370711U
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- 238000004321 preservation Methods 0.000 title claims description 27
- 230000004888 barrier function Effects 0.000 title description 2
- 238000009413 insulation Methods 0.000 claims abstract description 41
- 239000000463 material Substances 0.000 claims abstract description 25
- 239000002002 slurry Substances 0.000 claims abstract description 23
- 229920002635 polyurethane Polymers 0.000 claims description 14
- 239000004814 polyurethane Substances 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 239000011491 glass wool Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 abstract description 9
- 239000010410 layer Substances 0.000 description 64
- 239000012634 fragment Substances 0.000 description 38
- 239000012212 insulator Substances 0.000 description 12
- 239000011083 cement mortar Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000011435 rock Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 239000011325 microbead Substances 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011383 glass concrete Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
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Abstract
The waterproof, heat-insulating and steam-isolating structure at the top of the low-temperature tunnel comprises an I-shaped part and a keel fixing part. The I-shaped part comprises an upper transverse plate and a lower transverse plate which are arranged in parallel, a web plate vertical to the I-shaped part is arranged in the middle, and an I-shaped part bolt is arranged below the web plate. The I-shaped part bolt passes through the top plate and the cross plate nut of the keel fixing piece downwards to be fixed. The keel fixing piece comprises a keel fixing piece transverse plate, a keel fixing piece web plate and a keel fixing piece connecting seat. The top plate is internally provided with a heat-insulating steam-isolating layer which is internally provided with an inorganic heat-insulating slurry layer and a non-combustible material heat-insulating layer. An upper keel is arranged in the keel fixing piece connecting seat and fixedly connected with the bolt. The bottom of the upper keel is connected with the top decorative plate through a rivet or a screw. The joint of the metal pieces is provided with a heat insulation pad. The problem that the heat pipe cannot be arranged due to narrow space is solved.
Description
Background
The utility model belongs to the technical field of the building structure, in particular to waterproof, heat preservation, the vapour proof structure at low temperature tunnel top.
Background
In order to meet the requirements of the use environment of a skiing project in a tunnel, a waterproof, heat-preservation, heat-insulation and steam-insulation insulator needs to be built, the internal space of the existing cross-country skiing tunnel is small, the radius of the tunnel structure is about 5 meters, the use space in the insulator keeps the size of 4 meters by 8 meters (height and width), equipment and facilities necessary for maintaining a low-temperature environment are arranged at the upper part of the insulator, the residual space at the top and the side is very limited, and the existing conventional construction method (forward construction from inside to outside) cannot be completed.
The insulator is used for keeping apart inside low temperature operational environment and outside normal atmospheric temperature environment, the inside temperature that is fit for skiing snow making that keeps of insulator, roughly-6 ℃, the outside rock stratum of insulator is because in about 50 meters position underground, can keep at warmer temperature throughout the year, require the inside low temperature of insulator can not conduct outside rock stratum, otherwise can cause the damage to the rock stratum, the higher temperature of rock stratum can not conduct inside the insulator yet, otherwise influence the hole in snow matter, for keeping the piping lane between insulator and the lining zero temperature, hug closely the lining inner wall and need set up the heat pipe layer (heat pipe and 30 mm's heat pipe cement mortar layer), cause the headspace more local promotion, the space that the normal construction needs also can not be satisfied in the lateral pipe corridor position, do not set up the heat pipe and still need build the construction method of insulator and the insulator to the solution simultaneously in such narrow and small space at present and the insulator that satisfies the requirement.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a waterproof, heat preservation, the vapour structure that separates at low temperature tunnel top have solved and need set up the narrow and small difficulty that can not arrange in heat pipe space between the top outside of isolator and lining cutting.
The technical scheme is as follows:
the waterproof, heat-insulating and steam-insulating structure at the top of the low-temperature tunnel comprises an I-shaped piece, a keel fixing piece, a top plate, a heat-insulating and steam-insulating layer, an inorganic heat-insulating slurry layer, a non-combustible material heat-insulating layer and a top decorative plate.
The method is characterized in that:
the I-shaped part comprises an upper transverse plate of the I-shaped part, a lower transverse plate of the I-shaped part, a web plate of the I-shaped part and a plurality of I-shaped part bolts.
The upper transverse plate and the lower transverse plate of the I-shaped part are arranged in parallel up and down, and a vertical I-shaped part web plate is fixedly arranged in the middle of the I-shaped part.
The lower transverse plate of the I-shaped part is vertically and fixedly connected with an I-shaped part bolt downwards.
The I-shaped part bolt penetrates downwards through the top plate, the I-shaped part bolt continues to penetrate downwards through a cross plate of the keel fixing piece, and then the I-shaped part bolt is screwed with a nut to be fixed below the I-shaped part bolt.
The keel fixing piece comprises a keel fixing piece transverse plate, a keel fixing piece web plate and a keel fixing piece connecting seat.
The keel fixing piece web is vertically arranged on the lower surface of the transverse plate of the keel fixing piece, and the lower part of the keel fixing piece web is fixedly connected with the outer side of the upper surface of the keel fixing piece connecting seat.
The top plate is internally provided with a heat-preservation steam-insulation layer, and the heat-preservation steam-insulation layer is internally provided with an inorganic heat-preservation slurry layer.
An upper keel is arranged in the keel fixing piece connecting seat, and the keel fixing piece connecting seat is fixedly connected with the upper keel.
The inner side of the inorganic heat-insulating slurry layer is provided with a non-combustible material heat-insulating layer.
The bottom of the upper keel is fixedly connected with a top decorative plate.
The non-combustible material heat-insulating layer is filled in all gaps between the outer side of the top decorative plate and the inorganic heat-insulating slurry layer.
The advantages are that:
the problem of need set up the narrow and small difficulty that can not arrange in heat pipe space in the top outside of isolator is solved, satisfy the requirement of the required isolator of the low temperature operational environment that is fit for skiing, have waterproof, heat preservation and insulate against heat, separate the function of gas. The leakage water in the tunnel structure can be quickly drained, and the mutual heat transfer and the steam permeation of the cold and hot areas are blocked.
Drawings
FIG. 1 is a front view of the separator.
Fig. 2 is a right side partial enlarged view of the separator.
Fig. 3 is a partially enlarged view of portion C of fig. 1.
Fig. 4 is an enlarged view of a portion D in fig. 1. (type C keel).
Fig. 5 is an enlarged view of a portion E of fig. 1. (omega-shaped side keels).
Fig. 6 is a sectional view a-a in fig. 1.
Fig. 7 is a sectional view taken along line B-B in fig. 1.
Fig. 8 is a partially enlarged view of portion F in fig. 7.
Fig. 9 is a front view of the i-shaped member.
Fig. 10 is a perspective view of the upper and lower cross plates of the i-shaped member.
Fig. 11 is a perspective view of an i-shaped member.
Figure 12 is a schematic view of the arrangement of the i-shaped member, the lower keel fixture and the insulation blanket.
Figure 13 is a perspective view of the keel fastener and C-shaped keel connection.
Figure 14 is an elevational view of the keel fixture and superior keel connection.
Figure 15 is a side view of the keel fixture and superior keel connection.
Figure 16 is an enlarged partial view of the top panel and side panel top lap seam.
I-shaped piece 1, I-shaped piece upper transverse plate 2, I-shaped piece lower transverse plate 3, I-shaped piece web 4, lining 5, I-shaped piece bolt 6, heat pipe 7, heat pipe layer 8, top plate 9, drainage ditch 10, side plate 11, ground 12, heat preservation steam-proof layer 13, keel fixing piece 14, keel fixing piece transverse plate 15, keel fixing piece web 16, keel fixing piece keel base 17, upper keel (upper cladding keel) 18, first heat insulation pad 19, second heat insulation pad 20, fourth heat insulation pad 21, top decorating plate 22, sixth heat insulation pad 23, side decorating plate 24, non-combustible material heat preservation layer 25, upright post 26, inorganic heat preservation slurry layer 27, third heat insulation pad 28, side keel 29, side keel U-shaped base 30, side keel L-shaped flanging 31, fifth heat insulation pad 32, seventh heat insulation pad 33, ground protection layer 34, snow layer 35, side decorating liner plate 36, side decorating panel 37, decoration panel, A cold air pipe 38, a smoke exhaust pipe 39, an air supply pipe 40, a cold channel 41, a pipe gallery 42, a lateral protective layer 43 and a gap inorganic heat-insulating slurry layer 44.
Detailed Description
The waterproof, heat-preservation and steam-insulation structure at the top of the low-temperature tunnel comprises an I-shaped part 1, a keel fixing part 14, a top plate 9, a heat-preservation steam-insulation layer 13 (a polyurethane layer with waterproof, heat-preservation and steam-insulation functions), an inorganic heat-preservation slurry layer 27, a non-combustible material heat-preservation layer 25 and a top decorative plate 22.
The I-shaped parts 1 are prefabricated metal pieces (steel), and each I-shaped part 1 comprises an upper transverse plate 2 of the I-shaped part, a lower transverse plate 3 of the I-shaped part, a web 4 of the I-shaped part and a plurality of (four) bolts 6 of the I-shaped part.
The upper transverse plate 2 and the lower transverse plate 3 of the I-shaped part are arranged in parallel up and down, and a vertical I-shaped part web plate 4 is fixedly arranged in the middle.
The transverse plate 2 on the I-shaped part is provided with (four) chemical anchor bolt holes which can be finely adjusted.
The I-shaped piece lower transverse plate 3 is vertically welded and fixedly connected with an I-shaped piece bolt 6 downwards (the I-shaped piece bolt 6 is welded in advance).
The transverse plates 2 of the plurality of I-shaped parts are respectively fixed on the arc inner surface of the top of the lining 5 in (seven) rows through chemical anchor bolts and are uniformly arranged.
The surface of the web 4 of the I-shaped part is vertically arranged along the arc direction (width direction) of the tunnel lining 5.
The arc-shaped inner surface of the top of the lining 5 is provided with a plurality of arc-shaped heat pipes 7, the heat pipes 7 are fixed on the arc-shaped inner surface of the top of the lining 5 through a plurality of clips, and the heat pipes 7 are positioned in a space between the transverse plate 2 on the I-shaped part and the transverse plate 3 below the I-shaped part.
A cement mortar layer and a heat pipe 7 are arranged between the I-shaped piece upper transverse plate 2 and the I-shaped piece lower transverse plate 3 to form a heat pipe layer 8.
The I-shaped bolt 6 passes through the top plate 9 downwards, then a first heat insulation pad 19 (rubber gasket) is arranged on the I-shaped bolt 6 below the top plate 9, the I-shaped bolt 6 continues to pass through the keel fixing piece transverse plate 15 of the keel fixing piece 14 downwards, then a second heat insulation pad 20 is arranged on the I-shaped bolt 6 below the keel fixing piece transverse plate 15, and then a nut is screwed below for fixing.
The top plate 9 is a profiled steel plate and is curved along the length direction of the arc-shaped trough groove (30-35 mm deep), the radian is matched with that of the arc-shaped inner surface of the top of the lining 5, the I-shaped part bolt 6 penetrates through the wave crest of the top plate 9, and leakage water can be smoothly discharged downwards to the drainage ditch 10 along the arc-shaped trough groove.
The keel fastener 14 includes a keel fastener cross plate 15, a keel fastener web 16, and a keel fastener keel base 17 (keel fastener U-shaped base). The keel fixture 14 is a metal preform (steel).
The keel fixing piece web plate 16 is vertically arranged on the lower surface of the keel fixing piece transverse plate 15, the lower part of the keel fixing piece web plate 16 is fixedly connected with the outer side of the upper surface of a keel fixing piece keel seat 17, and the opening of the keel fixing piece keel seat 17 is downward. The keel fastener web 16 is disposed along the direction of the two side panels of the keel fastener keel base 17.
The keel fixing piece web 16 surface below the top plate 9 is vertically arranged along the arc direction (width direction) of the lining 5.
The inner surface of the top plate 9 is provided with a heat-insulating steam-insulating layer 13, the heat-insulating steam-insulating layer 13 is obtained by spraying foamed polyurethane on site, and then an inorganic heat-insulating slurry layer 27 (inorganic heat-insulating cement mortar, specifically vitrified micro-bead heat-insulating slurry, completely sealing the polyurethane layer and leveling) is arranged (sprayed).
Be located and be equipped with fossil fragments fixing piece fossil fragments seat 17 of roof 9 below and go up fossil fragments 18 for C type fossil fragments, opening orientation fossil fragments fixing piece fossil fragments seat 17 upper surface on the C type fossil fragments, and bolt fixed connection is passed through with last fossil fragments 18 both sides in fossil fragments fixing piece fossil fragments seat 17 both sides to establish fourth heat insulating mattress 21 on the connecting bolt between fossil fragments fixing piece fossil fragments seat 17 and last fossil fragments 18. The gap between the upper keel 18 and the keel holder 17 is filled with glass wool (a part of the non-combustible material insulation layer 25).
The upper keel 18 is disposed along the length of the lining 5.
The inner side of the inorganic heat-insulating slurry layer 27 is provided with a heat-insulating layer 25 (glass wool layer) made of a non-combustible material.
Go up 18 bottoms of fossil fragments (the last opening offside of C type fossil fragments), through rivet or screw fixed connection top decorative board 22 to rivet or screw connection department are equipped with sixth heat insulating mattress 23 between 18 bottoms of last fossil fragments and top decorative board 22, and top decorative board 22 can be various steel buckled plate, goes up fossil fragments 18 with crest fixed connection.
The inner side of the non-combustible material heat preservation layer 25 is closely attached to the outer side of the top decorative plate 22.
The non-combustible material insulating layer 25 is filled in all gaps between the outer side of the top decorative plate 22 and the inorganic insulating slurry layer 27.
The lower transverse plate 3 of the I-shaped part is shorter than the upper transverse plate 2 of the I-shaped part along the length direction of the lining 5, so that bolts can be conveniently installed on the upper transverse plate 2 of the I-shaped part.
The heat pipes 7 extend to the inner wall of the lining 5 towards both sides.
The above structure can be applied to the following separators: and (5) manufacturing a lining 5 in the inner wall of the existing cave.
The heat-insulating and steam-insulating composite plate is provided with an I-shaped part 1, a top plate 9, a side plate 11, a heat-insulating and steam-insulating layer 13 (a polyurethane layer with waterproof, heat-insulating and steam-insulating functions), an inorganic heat-insulating slurry layer 27, a non-combustible material heat-insulating layer 25 and the like.
The I-shaped parts 1 are prefabricated metal pieces (steel), and each I-shaped part 1 comprises an upper transverse plate 2 of the I-shaped part, a lower transverse plate 3 of the I-shaped part, a web 4 of the I-shaped part and a plurality of (four) bolts 6 of the I-shaped part.
The upper transverse plate 2 and the lower transverse plate 3 of the I-shaped part are arranged in parallel up and down, and a vertical I-shaped part web plate 4 is fixedly arranged in the middle.
The transverse plate 2 on the I-shaped part is provided with (four) chemical anchor bolt holes which can be finely adjusted.
The I-shaped piece lower transverse plate 3 is vertically welded and fixedly connected with an I-shaped piece bolt 6 downwards (the I-shaped piece bolt 6 is welded in advance).
The transverse plates 2 of the plurality of I-shaped parts are respectively fixed on the arc inner surface of the top of the lining 5 in (seven) rows through chemical anchor bolts and are uniformly arranged.
The surface of the web 4 of the I-shaped part is vertically arranged along the arc direction (width direction) of the tunnel lining 5.
The arc-shaped inner surface of the top of the lining 5 is provided with a plurality of arc-shaped heat pipes 7, the heat pipes 7 are fixed on the arc-shaped inner surface of the top of the lining 5 through a plurality of clips, and the heat pipes 7 are positioned in a space between the transverse plate 2 on the I-shaped part and the transverse plate 3 below the I-shaped part.
A cement mortar layer and a heat pipe 7 are arranged between the I-shaped piece upper transverse plate 2 and the I-shaped piece lower transverse plate 3 to form a heat pipe layer 8.
The I-shaped bolt 6 passes through the top plate 9 downwards, then a first heat insulation pad 19 (rubber gasket) is arranged on the I-shaped bolt 6 below the top plate 9, the I-shaped bolt 6 continues to pass through the keel fixing piece transverse plate 15 of the keel fixing piece 14 downwards, then a second heat insulation pad 20 is arranged on the I-shaped bolt 6 below the keel fixing piece transverse plate 15, and then a nut is screwed below for fixing.
The top plate 9 is a profiled steel plate and is curved along the length direction of the arc-shaped trough groove (30-35 mm deep), the radian is matched with that of the arc-shaped inner surface of the top of the lining 5, the I-shaped part bolt 6 penetrates through the wave crest of the top plate 9, and leakage water can be smoothly discharged downwards to the drainage ditch 10 along the arc-shaped trough groove.
The keel fastener 14 includes a keel fastener cross plate 15, a keel fastener web 16, and a keel fastener keel base 17 (keel fastener U-shaped base). The keel fixture 14 is a metal preform (steel).
The keel fixing piece web plate 16 is vertically arranged on the lower surface of the keel fixing piece transverse plate 15, the lower part of the keel fixing piece web plate 16 is fixedly connected with the outer side of the upper surface of a keel fixing piece keel seat 17, and the opening of the keel fixing piece keel seat 17 is downward. The keel fastener web 16 is disposed along the direction of the two side panels of the keel fastener keel base 17.
The keel fixing piece web 16 surface below the top plate 9 is vertically arranged along the arc direction (width direction) of the lining 5.
The inner side of each side plate 11 is provided with a plurality of rows (six rows) of keel fixing pieces 14 from top to bottom.
Be located the curb plate 11 outside pipe gallery 42 in both sides respectively have a row of stand 26 (square steel stand), stand 26 bottom support at the escape canal 10 inward flange, the inside surface at lining 5 is fixed at the stand 26 top.
The side plate 11, the vertically arranged keel fixing piece transverse plate 15 and the upright post 26 are fixedly connected through screws, and pass through the outside wave crest of the side plate 11, and a third heat insulation pad 28 is arranged between the keel fixing piece transverse plate 15 and the side plate 11 through screws. The keel fixing piece web 16 surface on the inner side of the side plate 11 is vertical to the surface of the side plate 11.
The inner surface of the top plate 9, the tops of the two side plates 11 and the ground 12 are provided with heat-insulating steam-insulating layers 13, namely a sealed circle of heat-insulating steam-insulating layers 13 are arranged at the edge of the isolated body.
The heat-insulating steam-insulating layer 13 positioned on the ground 12 and the side wall of the drainage ditch 10 is paved by polyurethane boards in staggered joints, polyurethane is cast in the joints in situ, the surface of the polyurethane boards is provided with a ground protective layer 34 and a lateral protective layer 43 (concrete layer) for covering, and a snow layer 35 is arranged on the surface.
The thermal insulation steam-proof layer 13 at the upper top plate 9 and the side plate 11 is obtained by spraying foamed polyurethane on site, and then spraying an inorganic thermal insulation slurry layer 27 (inorganic thermal insulation cement mortar, specifically, vitrified micro-bead thermal insulation slurry, completely sealing the polyurethane layer and leveling).
Be located and be equipped with fossil fragments fixing piece fossil fragments seat 17 of roof 9 below and go up fossil fragments 18 for C type fossil fragments, opening orientation fossil fragments fixing piece fossil fragments seat 17 upper surface on the C type fossil fragments, and bolt fixed connection is passed through with last fossil fragments 18 both sides in fossil fragments fixing piece fossil fragments seat 17 both sides to establish fourth heat insulating mattress 21 on the connecting bolt between fossil fragments fixing piece fossil fragments seat 17 and last fossil fragments 18. The gap between the upper keel 18 and the keel holder 17 is filled with glass wool (a part of the non-combustible material insulation layer 25).
The upper keel 18 is disposed along the length of the lining 5.
The keel fixing piece keel seat 17 positioned at the inner side of the side plate 11 is internally provided with a side keel 29, and the side keel 29 can be an omega-shaped side keel.
Omega type side fossil fragments (for the metal prefabricated component) are including side fossil fragments U type seat 30, and side fossil fragments U type seat 30 both sides extend respectively and are equipped with side fossil fragments L type turn-ups 31.
The side keel U-shaped seat 30 is arranged in the keel fixing piece keel seat 17, two sides of the side keel U-shaped seat are fixedly connected through bolts respectively, and a fifth heat insulation pad 32 is arranged on the bolts between the side keel 29 and the keel fixing piece keel seat 17. The gaps between the side keels 29 and the corresponding keel fixture keel bases 17 are filled with glass wool (a portion of the insulation 25 of non-combustible material).
The side runners 29 extend along the length of the lining 5.
The inner side of the inorganic heat-insulating slurry layer 27 is provided with a heat-insulating layer 25 (glass wool layer) made of a non-combustible material.
The noncombustible material insulating layer 25 is filled in all gaps between the top decorative plate 22, the outer sides of the side wall decorative plates 24 on both sides and the inorganic insulating slurry layer 27.
Go up 18 bottoms of fossil fragments (the last opening offside of C type fossil fragments), through rivet or screw fixed connection top decorative board 22 to rivet or screw connection department are equipped with sixth heat insulating mattress 23 between 18 bottoms of last fossil fragments and top decorative board 22, and top decorative board 22 can be various steel buckled plate, goes up fossil fragments 18 with crest fixed connection.
The side wall decorative plate 24 vertically arranged at the inner side of the side keel 29 is fixed on the vertical edge of the L-shaped flanging 31 of the side keel 29 through a rivet or a screw, and a seventh heat insulation pad 33 is arranged on the rivet or the screw between the side wall decorative plate 24 and the side keel 29. The side keel L-shaped flanging 31 is arranged in the non-combustible material heat-insulating layer 25.
The side wall decorative plate 24 is divided into two layers of side wall decorative lining plates 36 and side wall decorative plates 37, the two layers of side wall decorative lining plates 36 and side wall decorative plates 37 are arranged in a staggered mode, and the vertical edges of the L-shaped flanges 31 of the upper side keel and the lower side keel of the side keel 29 correspond to the positions of the upper side decorative plate 37 and the lower side decorative plate 37 which are adjacent.
The sidewall decorative panel 24 may be a high density silicate colored exterior wall panel.
The inner side of the non-combustible material heat preservation layer 25 is closely attached to the top decorative plate 22 and the side wall decorative plates 24 at the two sides.
Facilities such as a snow making machine, a refrigerating machine, a cable, a cold air pipe 38, a smoke exhaust pipe 39, an air supply pipe 40, a cold ditch 41 and the like which ensure the cross-country skiing low-temperature environment can be arranged in the isolation body according to requirements. The cement mortar, polyurethane, inorganic heat-insulating cement mortar, vitrified micro-bead heat-insulating slurry, glass wool and concrete are all known materials.
The lower transverse plate 3 of the I-shaped part is shorter than the upper transverse plate 2 of the I-shaped part along the length direction of the lining 5, so that bolts can be conveniently installed on the upper transverse plate 2 of the I-shaped part.
The heat pipes 7 extend to the inner wall of the lining 5 towards both sides. The joint of the metal pieces is provided with a heat insulation pad.
The isolated body be reverse construction: firstly, installing the I-shaped member 1 and the heat pipe 7, then installing the upright post 26, then installing the top plate 9 and the side plate 11, and then installing other internal components.
Or: since the width of the side wall decorative panels 24 is different, it is also possible to use C-shaped keels for the side keels 29 provided in the keel base 17 of the uppermost or lowermost keel fixture 14 of the plurality of keel fixtures 14 of the side panel 11, with the openings facing the side panel 11.
The polyurethane material in the structure is of a closed-cell structure, has excellent heat insulation and gas insulation performance and has certain waterproofness. The polyurethane layer is completely covered and sealed by inorganic heat insulation slurry, and is covered by a 50 mm-thick non-combustible material heat insulation layer, and gaps are fully filled, so that the advantages of the materials can be exerted, and the fire safety of the structure can be ensured. The polyurethane adopts a foam-in-place spraying mode, so that the structural integrity can be better ensured, and the water leakage outside the top plate can be isolated to a certain extent.
All metal parts are open thin-wall components, glass wool is filled in gaps among the components inside the heat-insulating layer 13, and heat-insulating pads are arranged at the connection parts of the metal parts, so that the adverse effect of the cold bridge part can be reduced to the greatest extent.
Claims (5)
1. The waterproof, heat-preservation and steam-insulation structure at the top of the low-temperature tunnel comprises an I-shaped part (1), a keel fixing part (14), a top plate (9), a heat-preservation and steam-insulation layer (13), an inorganic heat-preservation slurry layer (27), a non-combustible material heat-preservation layer (25) and a top decorative plate (22); the method is characterized in that:
the I-shaped part (1) comprises an upper transverse plate (2) of the I-shaped part, a lower transverse plate (3) of the I-shaped part, a web plate (4) of the I-shaped part and a plurality of I-shaped part bolts (6);
an upper transverse plate (2) and a lower transverse plate (3) of the I-shaped part are arranged in parallel up and down, and a vertical I-shaped part web plate (4) is fixedly arranged in the middle of the I-shaped part;
an I-shaped member bolt (6) is vertically and fixedly connected downwards to the I-shaped member lower transverse plate (3);
the I-shaped part bolt (6) penetrates through the top plate (9) downwards, the I-shaped part bolt (6) continuously penetrates through a keel fixing piece transverse plate (15) of the keel fixing piece (14) downwards, and then a nut is screwed below the I-shaped part bolt for fixing;
the keel fixing piece (14) comprises a keel fixing piece transverse plate (15), a keel fixing piece web plate (16) and a keel fixing piece connecting seat (17);
the keel fixing piece web plate (16) is vertically arranged on the lower surface of the keel fixing piece transverse plate (15), and the lower part of the keel fixing piece web plate (16) is fixedly connected with the outer side of the upper surface of the keel fixing piece connecting seat (17);
a heat-insulating steam-isolating layer (13) is arranged in the top plate (9), and an inorganic heat-insulating slurry layer (27) is arranged in the heat-insulating steam-isolating layer (13);
an upper keel (18) is arranged in the keel fixing piece connecting seat (17), and the keel fixing piece connecting seat (17) is fixedly connected with the upper keel (18);
the inner side of the inorganic heat-preservation slurry layer (27) is provided with a non-combustible material heat-preservation layer (25);
the bottom of the upper keel (18) is fixedly connected with a top decorative plate (22);
the non-combustible material heat-insulating layer (25) is filled in all gaps between the outer side of the top decorative plate (22) and the inorganic heat-insulating slurry layer (27).
2. The waterproof, heat-insulating and steam-insulating structure at the top of the low-temperature tunnel according to claim 1, characterized in that: the top plate (9) is a profiled steel plate, the top plate is bent along the length direction of the groove of the arc-shaped wave trough, the radian of the top plate is matched with that of the arc-shaped inner surface of the top of the lining (5), and the I-shaped part bolt (6) penetrates through the wave crest of the top plate (9); the heat-insulating steam-insulating layer (13) is a polyurethane layer; the non-combustible material heat preservation layer (25) is a glass wool layer.
3. The waterproof, heat-insulating and steam-insulating structure at the top of the low-temperature tunnel according to claim 1, characterized in that: the upper keel (18) is arranged along the length direction of the lining (5).
4. The waterproof, heat-insulating and steam-insulating structure at the top of the low-temperature tunnel according to claim 1, characterized in that: a first heat insulation pad (19) is arranged on an I-shaped part bolt (6) between the top plate (9) and the transverse plate (15) of the keel fixing piece;
a second heat insulation pad (20) is arranged on an I-shaped bolt (6) between the transverse plate (15) of the keel fixing piece and the lower nut;
a fourth heat insulation pad (21) is arranged on a connecting bolt between the keel fixing piece connecting seat (17) and the upper keel (18);
and a sixth heat insulation pad (23) is arranged at the rivet or screw joint between the bottom of the upper keel (18) and the top decorative plate (22).
5. The waterproof, heat-insulating and steam-insulating structure at the top of the low-temperature tunnel according to claim 1, characterized in that: the keel fixing piece connecting seat (17) is a keel fixing piece U-shaped seat with a downward opening; the upper keel (18) is a C-shaped keel.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110145343A (en) * | 2019-05-11 | 2019-08-20 | 中国建筑东北设计研究院有限公司 | Waterproof, heat preservation at the top of low-temperature tunnel are constructed every vapour |
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2019
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110145343A (en) * | 2019-05-11 | 2019-08-20 | 中国建筑东北设计研究院有限公司 | Waterproof, heat preservation at the top of low-temperature tunnel are constructed every vapour |
CN110145343B (en) * | 2019-05-11 | 2024-04-26 | 中国建筑东北设计研究院有限公司 | Waterproof, heat-insulating and steam-isolating structure at top of low-temperature tunnel |
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