CN107091105B - The aerial steel platform and its construction method continuously constructed for realizing interchange tunnels - Google Patents
The aerial steel platform and its construction method continuously constructed for realizing interchange tunnels Download PDFInfo
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- CN107091105B CN107091105B CN201710378731.3A CN201710378731A CN107091105B CN 107091105 B CN107091105 B CN 107091105B CN 201710378731 A CN201710378731 A CN 201710378731A CN 107091105 B CN107091105 B CN 107091105B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 47
- 239000010959 steel Substances 0.000 title claims abstract description 47
- 238000010276 construction Methods 0.000 title claims abstract description 35
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 52
- 230000003014 reinforcing effect Effects 0.000 claims description 37
- 229910052742 iron Inorganic materials 0.000 claims description 26
- 238000003466 welding Methods 0.000 claims description 14
- 210000001364 upper extremity Anatomy 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 210000003205 muscle Anatomy 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
- 230000012447 hatching Effects 0.000 description 7
- 230000006872 improvement Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 210000001015 abdomen Anatomy 0.000 description 3
- 239000007787 solid Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 210000002435 tendon Anatomy 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
- E21D11/152—Laggings made of grids or nettings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The present invention provides a kind of aerial steel platform and its construction method continuously constructed for realizing interchange tunnels, and the interchange tunnels include active well, the collar tie beam for being formed in active well inner wall and the lower layer tunnel and upper layer tunnel that are formed in the collar tie beam or more two sides；Wherein, the steel platform is set up to be formed after shield completes the lower layer tunnel reception and completes to reverse end for end and originate in the active well；Whereby, after completing steel platform and building, lower layer's constructing tunnel then can be restored, originating, reverse end for end and receives etc. and constructing for upper layer tunnel is carried out simultaneously, solve the problems, such as that existing interchange tunnels up and down can continuously construct, and the application steel platform does not influence the lifting construction of constructing tunnel later period portal ring beam, fill in barn concreting and large scale equipment.
Description
Technical field
The present invention relates to the technical field of construction of urban rail transit construction, relate in particular to one kind for realizing interchange tunnels
The aerial steel platform and its construction method continuously constructed.
Background technique
As urban underground space constantly develops and utilizes, subterranean resource tends to be nervous, in order to save subterranean resource and
Convenient for traffic transfer, urban is in urban rail transit construction, and by two-wire and in a station, which forms an ends four
A portal, overlaps two-by-two.In this case also through being promoted frequently with two shield machines in process of construction, after the reception of side shield
Same layer u-turn continues to originate the section for promoting the other side.Upper layer shield receives, reverses end for end and flat form used by originating and such as
What ensures that the continuous construction of upper and lower hole interchange tunnels is crucial research object.
Being worth noting is, previous interim steel platform sets up only solution upper layer constructing tunnel, it is difficult to realize lower layer's tunnel
The synchronous construction in road；Separately there is the operation platform for pouring permanent concrete structural slab, however, presence can not solve such operation platform again
Certainly later period portal ring beam, the technical problems such as concreting and large scale equipment lifting of filling in barn.
Summary of the invention
In view of the foregoing, the present invention provides a kind of aerial steel platform continuously constructed for realizing interchange tunnels and its applies
Work method, the steel platform have received in the lower layer tunnel and have completed u-turn in the active well and set up shape after originating
At whereby, completing that lower layer's constructing tunnel then can be restored, while carrying out originating, adjusting for upper layer tunnel after steel platform builds
The construction such as head and reception solves the problems, such as that existing interchange tunnels up and down can not continuously construct, and the application steel platform does not influence tunnel
The lifting construction of road construction later period portal ring beam, fill in barn concreting and large scale equipment.
To achieve the above object, it continuously constructs the technical solution adopted by the present invention is that providing one kind for realizing interchange tunnels
Aerial steel platform, the interchange tunnels include active well, the collar tie beam for being formed in active well inner wall and are formed in the collar tie beam
The lower layer tunnel and upper layer tunnel of upper and lower two sides；Wherein, the steel platform receives and in the shield completion lower layer tunnel in institute
It states and completes u-turn in active well and set up to be formed after originating；The steel platform includes: girder, is spaced with radially extending along tunnel face
It is set between the opposite sides of the collar tie beam, the girder is by including that the component setting of main beam member and attachment beam is constituted, institute
Stating main beam member and the attachment beam is all the fashioned iron for being formed with web, upper flange and lower wing plate；Wherein, the main beam member is set
Between two adjacent columnss, the attachment beam is set to column top；The web two sides of the main beam member and the attachment beam
Be fixedly connected equipped with connecting plate, the connecting plate be the connecting plate that web first side is sequentially placed by bolt, web and
The connecting plate of web second side realizes being fixedly connected between main beam member and attachment beam, the main beam member and the connection
It is welded and fixed between the upper flange of beam and between lower wing plate；Secondary beam, be arranged at intervals between the girder and with the girder phase
It hands over and constitutes a platform；Column, top and the bottom plane of main girder are affixed, and bottom end and the work bottom are affixed；Panel, paving
On the platform that the girder and the secondary beam are constituted.
The aerial steel platform that the present invention continuously constructs for realizing interchange tunnels further improvement lies in that, the column is
It is formed with the fashioned iron of web and wing plates on two sides；The bottom end weldering of the column is equipped with bottom plate, welds between the bottom plate and the web
Equipped with gusset；The column places the bottom plate by anchor bolt to be fixedly arranged on the bottom of the active well.
The aerial steel platform that the present invention continuously constructs for realizing interchange tunnels further improvement lies in that, the collar tie beam and
It is affixed that attachment base is equipped between girder adjacent thereto；The attachment base includes that the first connecting plate of T-shaped welding and second connect
Fishplate bar, first connecting plate are fixedly connected on the collar tie beam side by anchor bolt；The girder is formed with web, upper flange
And lower wing plate, weldering is equipped with gusset between the web and the upper flange, lower wing plate, and second connecting plate and the gusset weld
Connect fixation.
The aerial steel platform that the present invention continuously constructs for realizing interchange tunnels further improvement lies in that, the girder is
It is formed with the fashioned iron of web, upper flange and lower wing plate, and between the two sides of the web and the upper flange, lower wing plate respectively
Weldering is equipped with gusset；The secondary beam is the fashioned iron for being formed with web, upper flange and lower wing plate, and the both ends of the web extend to form company
Socket part；The secondary beam both ends are connected through portion and are fixedly connected with the gusset of adjacent two girder overlapping.
The aerial steel platform that the present invention continuously constructs for realizing interchange tunnels further improvement lies in that, the girder is
It is formed with the fashioned iron of web, upper flange and lower wing plate, and between the two sides of the web and the upper flange, lower wing plate respectively
Weldering is equipped with gusset；
The top of the column and the lower wing plate of the girder are welded and fixed, and two wing plates of the column and the girder
Bars position be correspondingly arranged.
The aerial steel platform that the present invention continuously constructs for realizing interchange tunnels further improvement lies in that, adjacent secondary beam
Between be additionally provided with parallel with girder inside reinforcing rib connection, the inside reinforcing rib is configured to the type that section is in inverted T-shaped
Steel, with web and lower wing plate；The opposite end of the inside reinforcing rib and the adjacent secondary beam weld, and the inside adds
The web of the web ora terminalis and lower wing plate ora terminalis of strengthening tendons and the secondary beam welds, the web upper limb of the inside reinforcing rib with it is described
The welding of panel bottom surface.
The aerial steel platform that the present invention continuously constructs for realizing interchange tunnels further improvement lies in that, the girder is
It is formed with the fashioned iron of web, upper flange and lower wing plate, and between the two sides of the web and the upper flange, lower wing plate respectively
Weldering is equipped with gusset；The outside reinforcing rib connection parallel with the secondary beam, the outside reinforcing rib are additionally provided between adjacent girder
It is configured to the L-shaped fashioned iron in section, with web and lower wing plate；The opposite end of the outside reinforcing rib and the adjacent master
Beam welding, the recessed formation of upper flange that the web of the outside reinforcing rib correspond to the girder are dodged notch, the outside reinforcement
The gusset of the web-end side and lower wing plate edge of muscle and the girder welds, the outside reinforcing rib web upper limb with it is described
The welding of panel bottom surface.
In addition, the present invention provides a kind of construction method that interchange tunnels are continuously constructed, the interchange tunnels include under being located at
The lower hole tunnel of the first of layer, the second lower hole tunnel and the hole tunnel on hole tunnel on the first of upper layer, second, each tunnel it
Between pass through be set to tunnel both ends active well be connected to；Wherein, the step of construction method includes:
Carry out the shield-tunneling construction of the first lower hole tunnel；
After shield completes the reception operation of the described first lower hole tunnel and completes u-turn in the active well and originate
Set up the aerial steel platform to be formed and be as previously described for realizing that interchange tunnels are continuously constructed；
After completion steel platform is set up, while hole tunnel, second on the shield-tunneling construction and first of the lower hole tunnel of progress second
The shield-tunneling construction of upper hole tunnel.
Further, in the construction method that interchange tunnels of the present invention are continuously constructed, the shield passes through in wherein one end
It is preset in active well under one section and turns over beam section, to form fork road, realize horizontal transport of the shield in active well.
Detailed description of the invention
Fig. 1 is the floor map that steel platform of the present invention is set in active well.
Fig. 2 is the A-A hatching line schematic cross-sectional view of Fig. 1 of the present invention.
Fig. 3 is the B-B hatching line schematic cross-sectional view of Fig. 1 of the present invention.
Fig. 4 is the column bottom end structure enlargement diagram of the C frame of Fig. 2 of the present invention.
Fig. 5 is the planar structure schematic diagram of the column bottom plate of Fig. 4 of the present invention.
Fig. 6 is the schematic view of facade structure of the column gusset of Fig. 4, Fig. 5 of the present invention.
Fig. 7 is the girder of the D frame of Fig. 3 of the present invention and the integrated structure enlarged diagram of collar tie beam, secondary beam.
Fig. 8 is schematic cross-sectional view of the E-E hatching line to attachment base of Fig. 7 of the present invention.
Fig. 9 is the planar structure schematic diagram of steel platform of the present invention.
Figure 10 is the A-A hatching line schematic cross-sectional view of Fig. 9 of the present invention.
Figure 11 is the B-B hatching line schematic cross-sectional view of Fig. 9 of the present invention.
Figure 12 is the main beam connecting structure enlarged diagram of the C frame of Figure 10 of the present invention.
Figure 13 is the side structure schematic view of Figure 12 of the present invention.
Figure 14 is the girder and column top integrated structure enlarged diagram of the D frame of Figure 10 of the present invention.
Figure 15 is the side structure schematic view of Figure 14 of the present invention.
Figure 16 is the E-E hatching line of Figure 10 of the present invention to girder, secondary beam integrated structure schematic cross-sectional view.
Figure 17 is the N-N hatching line schematic cross-sectional view of Figure 16 of the present invention.
Figure 18 is the secondary beam reinforced structure enlarged diagram of the F frame of Figure 11 of the present invention.
Figure 19 is the side structure schematic view of Figure 18 of the present invention.
Figure 20 is that the lower road Fan Liangjicha is arranged in construction method that interchange tunnels of the present invention are continuously constructed to carry out level
The floor map of transport.
The corresponding relationship of appended drawing reference and component is as follows:
Active well 11；Collar tie beam 12；Lower layer tunnel 13；Upper layer tunnel 15；Under turn over beam 14；Girder 20；Main beam member 201；Even
Connect beam 202；Web 21；Upper flange 22；Lower wing plate 23；Gusset 24；Connecting plate 25；High-strength bolt 26；Secondary beam 30；Web 31；On
Wing plate 32；Lower wing plate 33；Interconnecting piece 34；Column 40；Top 41；Bottom end 42；Web 43；Wing plate 44；Bottom plate 45；Gusset 46；Anchor
Bolt 47；Panel 50；Attachment base 60；First connecting plate 61；Second connecting plate 62；Anchor bolt 63；Inside reinforcing rib 70；Web 71；Under
Wing plate 72；It dodges notch 73；Outside reinforcing rib 80；Web 81；Lower wing plate 82；It dodges notch 83；Horizontal transport channel 90.
Specific embodiment
For the benefit of to understanding of the invention, it is illustrated with reference to the accompanying drawings and embodiments.
Fig. 1 to Figure 20 is please referred to, the present invention provides a kind of aerial steel platform continuously constructed for realizing interchange tunnels,
Mainly it is made of girder 20, secondary beam 30, column 40 and panel 50.Wherein, as shown in Figure 1, Figure 2, Figure 3 shows, the interchange tunnels packet
The lower layer tunnel 13 for including active well 11, being formed in the collar tie beam 12 of 11 inner wall of active well and being formed in about 12 two sides of collar tie beam
And upper layer tunnel 15；The steel platform completes the reception of lower layer tunnel 13 in shield and completes to adjust in the active well 11
It head and sets up to be formed after originating.
Specifically, as shown in Fig. 1 to Fig. 3, Fig. 9 to Figure 11, the girder 20 is spaced setting along tunnel face with radially extending
Between the opposite sides of the collar tie beam 12；The secondary beam 30 be arranged at intervals between the girder 20 and with 20 phase of girder
It hands over and constitutes a platform；The top 41 of the column 40 and 20 bottom surface of girder are affixed, bottom end 42 and 11 bottom of active well
It is affixed；The panel 50 is layed on the platform that the girder 20 is constituted with the secondary beam 30.Wherein, as shown in fig. 7, described time
The top surface of beam 30 is preferably flushed with the top surface of the girder 20 to be laid with the panel 50.
In the embodiment of the present invention, the steel platform completely spreads the active well 11, and the girder 20 uses HN800 × 300
× 17 × 26 fashioned iron, with spacing 1.6m arrangement, the secondary beam 30 uses HN600 × 200 × 11 × 17 fashioned iron, with spacing 1.5m
Arrangement, the column 40 use HN800 × 300 × 17 × 26 fashioned iron, are distributed with the spacing of 1.6m × 7.4m.Girder 20 and time
Beam 30 is attached by 10.9 grades of frictional high-strength bolts.The connection type of column 40 and girder 20 is butt welding, connection
Weld seam is full penetration groove welding, remaining weld seam is fillet weld, and welding quality grade is second level, and girder 20, secondary beam 30 are constituted flat
2cm steel plate is covered on platform as the panel 50.Entire steel platform and collar tie beam 12, column 40 and bottom plate 45 pass through M20 chemistry
Anchor bolt is attached.Such as Figure 20, the horizontal transport channel 90 in the another pre- leaving layer tunnel 13 of the steel platform.
As shown in Fig. 4, Fig. 5, Fig. 6, the column 40 is the fashioned iron for being formed with web 43 and wing plates on two sides 44；It is described vertical
The weldering of bottom end 42 of column 40 is equipped with bottom plate 45, and weldering is equipped with gusset 46 between the bottom plate 45 and the web 43；The column 40 is logical
It crosses anchor bolt 47 and places the bottom plate 45 to be fixedly arranged on the bottom of the active well 11.In the embodiment of the present invention, the anchor bolt 47
Preferably it is equipped with the M20 chemical anchor bolts of cushion block, two diagonally opposing corner ends of the gusset 46, wherein one jiao of end and 40 web 43 of column
And the welding of 45 double-sided symmetrical of bottom plate, another angle end chamfers to form sloping edge.
As shown in Figure 7, Figure 8, it is affixed that attachment base 60 is equipped between the collar tie beam 12 and girder 20 adjacent thereto；The company
Joint chair 60 includes the first connecting plate 61 and the second connecting plate 62 of T-shaped welding, and first connecting plate 61 is solid by anchor bolt 63
Surely it is connected on 12 side of collar tie beam；The girder 20 is formed with web 21, upper flange 22 and lower wing plate 23, the web 21
Weldering is equipped with gusset 24 between the upper flange 22, lower wing plate 23, and second connecting plate 62 and the gusset 24 welding are solid
It is fixed.In the embodiment of the present invention, the anchor bolt 63 is preferably the M20 chemical anchor bolts equipped with cushion block.
As shown in fig. 7, the girder 20 is the fashioned iron for being formed with web 21, upper flange 22 and lower wing plate 23, and the abdomen
Weldering is equipped with gusset 24 respectively between the two sides of plate 21 and the upper flange 22, lower wing plate 23；The secondary beam 30 is to be formed with abdomen
The both ends of the fashioned iron of plate 31, upper flange 32 and lower wing plate 33, the web 31 extend to form interconnecting piece 34；30 both ends of secondary beam
Portion 34 is connected through to be fixedly connected with the gusset 24 of adjacent two girder 20 overlapping.In the embodiment of the present invention, the secondary beam 30
Interconnecting piece 34 and the gusset 24 of the girder 20 be attached by 10.9 grades of frictional high-strength bolts.
As shown in Figure 12 and Figure 13, the girder 20 is by including that structure is arranged in the component of main beam member 201 and attachment beam 202
At the main beam member 201 and the attachment beam 202 are all the fashioned iron for being formed with web 21, upper flange 22 and lower wing plate 23；Its
In, the main beam member 201 is set between two adjacent columnss 40, and the attachment beam 202 is set to 40 top of column；The girder
Component 201 and 21 two sides of web of the attachment beam 202 are equipped with connecting plate 25 and are fixedly connected, the main beam member 201 with
It is welded and fixed between the upper flange 22 of the attachment beam 202 and between lower wing plate 23.
In the embodiment of the present invention, the connecting plate 25 is sequentially to place web 21 by 10.9 grades of frictional high-strength bolts
The connecting plate 25 of 21 second side of connecting plate 25, web 21 and web of first side realizes main beam member 201 and attachment beam 202
Between be fixedly connected.More specifically, each connecting node of main beam member 201 and attachment beam 202 is symmetrical equipped with quantity
High-strength bolt 26.More specifically, each node is equipped with 32 and is symmetrically distributed in main beam member 201 and attachment beam such as Figure 12
High-strength bolt on 202 webs 21.Between the main beam member 201 and the upper flange 22 of the attachment beam 202 and lower wing plate 23
Between shape V-shaped weld at 45 °, to be welded.
As shown in Figure 14, Figure 15, the girder 20 is the fashioned iron for being formed with web 21, upper flange 22 and lower wing plate 23, and
Weldering is equipped with gusset 24 respectively between the two sides and the upper flange 22, lower wing plate 23 of the web 21；The top of the column 40
End 41 and the lower wing plate 23 of the girder 20 are welded and fixed, and the gusset of two wing plates 44 and the girder 20 of the column 40
24 positions are correspondingly arranged.In the embodiment of the present invention, the lower wing plate 23 of two wing plates 44 of the column 40 and the girder 20 it
Between form unilateral V-shaped weld, to be welded.
As shown in Figure 16, Figure 17, the girder 20 is the fashioned iron for being formed with web 21, upper flange 22 and lower wing plate 23, and
Weldering is equipped with gusset 24 respectively between the two sides and the upper flange 22, lower wing plate 23 of the web 21；Adjacent girder 20 it
Between be additionally provided with the outside reinforcing rib 80 parallel with the secondary beam 30 and connect, it is L-shaped that the outside reinforcing rib 80 is configured to section
Fashioned iron, with web 81 and lower wing plate 82；The opposite end of the outside reinforcing rib 80 and the adjacent girder 20 weld,
The upper flange 22 of the corresponding girder 20 of the web 81 of the outside reinforcing rib 80 is recessed to form notch 83 of dodging, and the outside adds
81 end profile of web and 82 edge of lower wing plate of strengthening tendons 80 and the gusset 24 of the girder 20 weld, the outside reinforcing rib 80
81 upper limb of web and 50 bottom surface of panel are welded.
In the embodiment of the present invention, 81 end profile of web and 82 edge of lower wing plate of the outside reinforcing rib 80 and institute
It states and is welded between 24 surface of gusset of girder 20 using fillet welding；80 web of outside reinforcing rib, 81 upper limb and the panel 50
It is welded between bottom surface using double-sided symmetrical.
As shown in Figure 18, Figure 19, the inside reinforcing rib 70 parallel with the girder 20 is additionally provided between adjacent secondary beam 30
Connection, the inside reinforcing rib 70 is configured to the fashioned iron that section is in inverted T-shaped, with web 71 and lower wing plate 72；The inside
The opposite end of reinforcing rib 70 and the adjacent secondary beam 30 weld, the corresponding secondary beam of the web 71 of the inside reinforcing rib 70
The recessed formation of 30 upper flange 32 is dodged notch 73,71 ora terminalis of web and 72 ora terminalis of lower wing plate of the inside reinforcing rib 70 with
The web 31 of the secondary beam 30 welds, and 71 upper limb of web of the inside reinforcing rib 70 and 50 bottom surface of panel are welded.Yu Ben
In inventive embodiments, between 71 ora terminalis of web of the inside reinforcing rib 70 and the web 31 of secondary beam 30 and 71 upper limb of web
It is all welded using double-sided symmetrical between 50 bottom surface of panel；The abdomen of lower wing plate 72 ora terminalis and secondary beam 30 of the inside reinforcing rib 70
The band unilateral V-shaped weld of root face is formed between plate 31 to be welded.
The specific structure for the aerial steel platform that the present invention continuously constructs for realizing interchange tunnels is explained above, asks below
Cooperate ginseng Figure 20 with Fig. 1, illustrates the construction method that interchange tunnels of the present invention are continuously constructed.
The present invention is constructed with 5, No. 6 line cultural center stations of Tianjin Underground to Tianjin hotel station section as engineering background, the work
It include outside four tunnels overlapped two-by-two in journey, particularity is also manifested by the construction site not transition with shield u-turn, by
This present invention provides a kind of by building the method such as aforementioned aerial steel platform, the construction party that realization interchange tunnels are continuously constructed
Method.
For purposes of illustration only, the interchange tunnels defined below include hole tunnel, the second lower hole tunnel under the first of lower layer
Road and the hole tunnel on hole tunnel on the first of upper layer, second pass through the active well for being set to tunnel both ends between each tunnel
Connection；Wherein, the step of construction method includes:
Carry out the shield-tunneling construction of the first lower hole tunnel；
After shield completes the reception operation of the described first lower hole tunnel and completes u-turn in the active well and originate
Set up the aerial steel platform to be formed and be as previously described for realizing that interchange tunnels are continuously constructed；
After completion steel platform is set up, while hole tunnel, second on the shield-tunneling construction and first of the lower hole tunnel of progress second
The shield-tunneling construction of upper hole tunnel.
Specifically, hole tunnel on described first, on second the shield-tunneling construction of hole tunnel include shield on first hole tunnel,
The reception of hole tunnel on second such as reverses end for end and originates at the operations.
Further, since originating place not with shield u-turn and in the case where transition, shield horizontal transport is both needed to lead to
It is transported again after having penetrated through tunnel and having transported to u-turn active well to working face.Therefore as shown in figure 20, the present invention is separately in active well
Road is pitched in interior setting, and turns over beam section under the Station Design stage is one section default, so that electric locomotive passes through, completes the horizontal fortune of shield
Defeated operation.
It is described the invention in detail above in conjunction with accompanying drawings and embodiments, those skilled in the art can basis
Above description makes many variations example to the present invention.Thus, certain details in embodiment should not constitute limitation of the invention,
The present invention will be using the range that the appended claims define as protection scope of the present invention.
Claims (9)
1. a kind of aerial steel platform continuously constructed for realizing interchange tunnels, the interchange tunnels include active well, are formed in
The collar tie beam of active well inner wall and the lower layer tunnel and upper layer tunnel for being formed in the collar tie beam or more two sides；It is characterized in that, institute
Steel platform is stated to set up to be formed after shield completes the lower layer tunnel reception and completes to reverse end for end and originate in the active well；Institute
Stating steel platform includes:
Girder is arranged at intervals between the opposite sides of the collar tie beam with radially extending along tunnel face, and the girder is by including master
The setting of the component of beam and attachment beam is constituted, the main beam member and the attachment beam be all be formed with web, upper flange and
The fashioned iron of lower wing plate；Wherein, the main beam member is set between two adjacent columnss, and the attachment beam is set to column top；It is described
Main beam member is fixedly connected with the web two sides of the attachment beam equipped with connecting plate, the connecting plate be by bolt sequentially
It is real to place the connecting plate of web first side of attachment beam, the connecting plate of the web second side of the web of attachment beam and attachment beam
Being fixedly connected between existing main beam member and attachment beam, between the main beam member and the upper flange of the attachment beam and lower wing plate
Between be welded and fixed；
Secondary beam is arranged at intervals between the girder and intersects one platform of composition with the girder；
Column, top and the bottom plane of main girder are affixed, and bottom end and the work bottom are affixed；
Panel is layed on the platform that the girder and the secondary beam are constituted.
2. the aerial steel platform according to claim 1 continuously constructed for realizing interchange tunnels, it is characterised in that:
The column is the fashioned iron for being formed with web and wing plates on two sides；The column bottom end weldering be equipped with bottom plate, the bottom plate with
Weldering is equipped with gusset between the web of the column；The column places the bottom plate by anchor bolt to be fixedly arranged on the active well
Bottom.
3. the aerial steel platform according to claim 1 continuously constructed for realizing interchange tunnels, it is characterised in that:
It is affixed that attachment base is equipped between the collar tie beam and girder adjacent thereto；The attachment base includes the first of T-shaped welding
Connecting plate and the second connecting plate, first connecting plate are fixedly connected on the collar tie beam side by anchor bolt；The girder at
Shape has web, upper flange and a lower wing plate, welds and sets between the upper flange of the web of the girder and the girder, the lower wing plate of girder
There is gusset, second connecting plate is welded and fixed with the gusset.
4. the aerial steel platform according to claim 1 continuously constructed for realizing interchange tunnels, it is characterised in that:
The girder is the fashioned iron for being formed with web, upper flange and lower wing plate, and the two sides of the web of the girder with it is described
Weldering is equipped with gusset respectively between the upper flange of girder, the lower wing plate of girder；
The secondary beam is the fashioned iron for being formed with web, upper flange and lower wing plate, and the both ends of the web of the secondary beam extend to form company
Socket part；
The secondary beam both ends are connected through portion and are fixedly connected with the gusset of adjacent two girder overlapping.
5. the aerial steel platform according to claim 2 continuously constructed for realizing interchange tunnels, it is characterised in that:
The girder is the fashioned iron for being formed with web, upper flange and lower wing plate, and the two sides of the web of the girder with it is described
Weldering is equipped with gusset respectively between the upper flange of girder, the lower wing plate of girder；
The top of the column and the lower wing plate of the girder are welded and fixed, and the muscle of two wing plates of the column and the girder
Board position is correspondingly arranged.
6. the aerial steel platform according to claim 1 continuously constructed for realizing interchange tunnels, it is characterised in that:
The inside reinforcing rib connection parallel with the girder is additionally provided between adjacent secondary beam, the inside reinforcing rib is configured to cut
Face is in the fashioned iron of inverted T-shaped, with web and lower wing plate；The opposite end of the inside reinforcing rib and the adjacent secondary beam weld
It connects, the web ora terminalis and lower wing plate ora terminalis of the inside reinforcing rib and the web of the secondary beam weld, the inside reinforcing rib
Web upper limb and the panel bottom surface are welded.
7. the aerial steel platform according to claim 1 continuously constructed for realizing interchange tunnels, it is characterised in that:
The girder is the fashioned iron for being formed with web, upper flange and lower wing plate, and the two sides of the web of the girder with it is described
Weldering is equipped with gusset respectively between the upper flange of girder, the lower wing plate of girder；
The outside reinforcing rib connection parallel with the secondary beam is additionally provided between adjacent girder, the outside reinforcing rib is configured to cut
The L-shaped fashioned iron in face, with web and lower wing plate；The opposite end of the outside reinforcing rib and the adjacent Main Girder Welding,
The recessed formation of upper flange that the web of the outside reinforcing rib corresponds to the girder is dodged notch, the web of the outside reinforcing rib
The gusset at end profile and lower wing plate edge and the girder welds, the outside reinforcing rib web upper limb and the panel bottom surface
Welding.
8. a kind of construction method that interchange tunnels are continuously constructed, which is characterized in that the interchange tunnels include positioned at the of lower layer
Once hole tunnel, the second lower hole tunnel and the hole tunnel on hole tunnel on the first of upper layer, second pass through between each tunnel
Active well set on tunnel both ends is connected to；Wherein, the step of construction method includes:
Carry out the shield-tunneling construction of the first lower hole tunnel；
It is set up after shield completes the reception operation of the described first lower hole tunnel and completes to reverse end for end and originate in the active well
Form the aerial steel platform continuously constructed for realizing interchange tunnels as described in any one of claims 1 to 7；
After completion steel platform is set up, while carrying out hole tunnel on the shield-tunneling construction and first that second descends hole tunnel, hole on second
The shield-tunneling construction in tunnel.
9. the construction method that interchange tunnels according to claim 8 are continuously constructed, it is characterised in that:
The shield turns over beam section under one section by presetting in the active well of wherein one end, to form fork road, realizes that shield exists
Horizontal transport in active well.
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Families Citing this family (3)
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| CN109440909B (en) * | 2018-12-25 | 2024-03-01 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Cover plate for railway tunnel and installation method thereof |
| CN112727484B (en) * | 2021-01-06 | 2022-12-13 | 中建一局集团建设发展有限公司 | Shield-pipe-jacking up-down parallel overlapping tunnel structure and construction method thereof |
| CN113027479B (en) * | 2021-04-16 | 2023-05-16 | 上海隧道工程有限公司 | Originating steel platform for jacking pipe method overlapping tunnel and construction method thereof |
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