CN109339819A - The compound section of jurisdiction that can be quickly abolished in shield Freezing Method for Cross-passage Construction and restructuring bankrupt - Google Patents
The compound section of jurisdiction that can be quickly abolished in shield Freezing Method for Cross-passage Construction and restructuring bankrupt Download PDFInfo
- Publication number
- CN109339819A CN109339819A CN201811495542.5A CN201811495542A CN109339819A CN 109339819 A CN109339819 A CN 109339819A CN 201811495542 A CN201811495542 A CN 201811495542A CN 109339819 A CN109339819 A CN 109339819A
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- portal
- jurisdiction
- lining cutting
- sulphur
- concrete lining
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- 238000010276 construction Methods 0.000 title claims abstract description 47
- 150000001875 compounds Chemical class 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000007710 freezing Methods 0.000 title claims abstract description 33
- 230000008014 freezing Effects 0.000 title claims abstract description 33
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 82
- 239000005864 Sulphur Substances 0.000 claims abstract description 82
- 239000004567 concrete Substances 0.000 claims abstract description 74
- 238000005520 cutting process Methods 0.000 claims abstract description 61
- 238000010438 heat treatment Methods 0.000 claims abstract description 49
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000011151 fibre-reinforced plastic Substances 0.000 claims abstract description 11
- 239000011521 glass Substances 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 238000005485 electric heating Methods 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 235000013312 flour Nutrition 0.000 claims description 13
- 229920001021 polysulfide Polymers 0.000 claims description 12
- 239000005077 polysulfide Substances 0.000 claims description 12
- 150000008117 polysulfides Polymers 0.000 claims description 12
- 239000004575 stone Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 5
- 239000011150 reinforced concrete Substances 0.000 description 6
- 230000015271 coagulation Effects 0.000 description 4
- 238000005345 coagulation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011178 precast concrete Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- XAQHXGSHRMHVMU-UHFFFAOYSA-N [S].[S] Chemical compound [S].[S] XAQHXGSHRMHVMU-UHFFFAOYSA-N 0.000 description 1
- 238000012644 addition polymerization Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000003463 sulfur Chemical class 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 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
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
-
- 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
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
- E21D11/086—Methods of making concrete lining segments
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses the compound section of jurisdiction that can quickly abolish in a kind of shield Freezing Method for Cross-passage Construction and restructuring bankrupts, it is characterized in that using sulphur concrete lining cutting in the portal within service channel portal is in sulphur concrete and machinable glass fiber-reinforced polymer production main track tunnel, it will be in outside the portal other than service channel portal steel grating in sulphur concrete lining cutting in portal and main track tunnel by pouring and be prefabricated into integrated compound section of jurisdiction;Be embedded in sulphur concrete lining cutting in the portal of compound section of jurisdiction can heating power heating wire.In service channel shield launching or reception, sulphur concrete lining cutting is set in portal to obtain temperature rise by the electric heating of heating wire first, when sulphur concrete lining cutting becomes loose in portal, jacking cutter head of shield machine carries out cutting and realizes that the quick of sulphur concrete lining cutting is abolished in portal.The present invention greatly improves concrete in Freezing Method for Cross-passage Construction and abolishes efficiency under the premise of meeting construction safety, reduces construction power consumption.
Description
Technical field
The present invention relates to shield method Freezing Method for Cross-passage Construction technical fields, more specifically apply in shield method service channel
The compound section of jurisdiction that can quickly abolish and restructuring bankrupt in construction.
Background technique
Shield method Freezing Method for Cross-passage Construction technology is the new process in Freezing Method for Cross-passage Construction field, is by shield method tunnel construction skill
Art is applied to Freezing Method for Cross-passage Construction, guarantees the safety and high efficiency of Freezing Method for Cross-passage Construction.The construction technology is not required for opening wide
Formula abolishes main track tunnel duct piece, but needs to be cut using shield cutter match line tunnel-liner, forms up and down line
Service channel.
Conventional main track tunnel-liner is mostly prefabricated reinforced concrete section of jurisdiction, and concrete grade C50, each piece precast reinforced
Concrete pipe sheet is bolted splicing full-circle spray pattern into tunnel by steel, and for the machinability for realizing concrete, designer will join
Armored concrete main reinforcement in network channel range is changed to the glass fiber-reinforced polymer of similar performance, and concrete follows conventional lines C50 coagulation
Soil.But in practice of construction, although Freezing Method for Cross-passage Construction region concrete has been realized in machinability, its construction efficiency ten
Point low, cutting speed is slow, and resource and energy consumption are very big, and construction cost is high.
Summary of the invention
The present invention is to avoid above-mentioned deficiency of the prior art, and providing can be fast in a kind of shield Freezing Method for Cross-passage Construction
The construction efficiency of service channel is improved under the premise of guaranteeing construction safety in the compound section of jurisdiction and restructuring bankrupt that speed is abolished, and improves
Project benefit.
The present invention adopts the following technical scheme that in order to solve the technical problem
The characteristics of compound section of jurisdiction that can quickly abolish in shield Freezing Method for Cross-passage Construction of the present invention, is: using sulphur concrete and
The production of machinable glass fiber-reinforced polymer is in sulphur concrete lining cutting in the portal within service channel portal in main track tunnel, by institute
It states and is in the portal other than service channel portal Wai steel grating in portal in sulphur concrete lining cutting and main track tunnel by pouring
It is prefabricated into integrated compound section of jurisdiction;Being embedded in sulphur concrete lining cutting in the portal of the compound section of jurisdiction can heating power
Heating wire.
The characteristics of compound section of jurisdiction that can quickly abolish in shield Freezing Method for Cross-passage Construction of the present invention lies also in: the heating wire is set
It is set to multilayer, same layer heating wire is distributed in portal on the identical thickness position of sulphur concrete lining cutting, the electricity of different layers
Heated filament point is in portal on the different thickness positions of sulphur concrete lining cutting, and the working power of the heating wire of variant layer is only
Vertical control.
The characteristics of compound section of jurisdiction that can quickly abolish in shield Freezing Method for Cross-passage Construction of the present invention, lies also in: setting adjacent two layers
Spacing between heating wire is 50mm.
The characteristics of compound section of jurisdiction that can quickly abolish in shield Freezing Method for Cross-passage Construction of the present invention, lies also in: the compound section of jurisdiction
In every cubic metre of portal in sulphur concrete lining cutting material mixture ratio are as follows:
550~600kg of sulphur;350~400kg of mountain flour;23~48kg of polysulfide rubber;Surplus is coarse aggregate stone;
The characteristics of compound section of jurisdiction that can quickly abolish in shield Freezing Method for Cross-passage Construction of the present invention, lies also in: the compound section of jurisdiction
In every cubic metre of portal in sulphur concrete lining cutting material mixture ratio are as follows:
Sulphur 600kg;Mountain flour 350kg;Polysulfide rubber 48kg;Stone 1380kg;
Or are as follows: sulphur 580kg;Mountain flour 400kg;Polysulfide rubber 48kg;Stone 1300kg;
Or are as follows: sulphur 550kg, mountain flour 350kg, polysulfide rubber 23kg, stone 1500kg.
The characteristics of restructuring bankrupt for the compound section of jurisdiction that can quickly abolish in shield Freezing Method for Cross-passage Construction of the present invention, is:
It is made in main track tunnel and is within service channel portal of sulphur concrete and machinable glass fiber-reinforced polymer
Sulphur concrete lining cutting in portal, will be in sulphur concrete lining cutting in the portal and main track tunnel service channel portal with
The outer steel grating of outer portal is prefabricated into integrated compound section of jurisdiction by pouring;The sulphur coagulation in the portal of the compound section of jurisdiction
Be embedded in native lining cutting can heating power heating wire.
In service channel shield launching or reception, the electric heating being embedded in portal in sulphur concrete lining cutting is connected first
The working power of silk makes in portal sulphur concrete lining cutting obtain temperature rise by the electric heating of heating wire, reaches setting in temperature rise
Value and when making that sulphur concrete lining cutting becomes loose in portal, jacking cutter head of shield machine carries out cutting and realizes sulphur in portal
It is concrete-lined quickly to abolish.
The characteristics of restructuring bankrupt for the compound section of jurisdiction that can quickly abolish in shield Freezing Method for Cross-passage Construction of the present invention, lies also in: will
The heating wire is set as multilayer, and same layer heating wire is distributed in the identical thickness position of sulphur concrete lining cutting in portal
On, the heating wire point of different layers is in portal on the different thickness positions of sulphur concrete lining cutting, the electric heating of variant layer
The working power independent control of silk;Each layer heating wire is controlled one by one according to the jacking cutting depth of cutter head of shield machine in turn switches on electricity
Source.
The characteristics of restructuring bankrupt for the compound section of jurisdiction that can quickly abolish in shield Freezing Method for Cross-passage Construction of the present invention, lies also in: setting
Setting the spacing between adjacent two layers heating wire is 50mm.
Compared with the prior art, the invention has the advantages that:
1, it is broken to greatly improve concrete in Freezing Method for Cross-passage Construction under the premise of meeting construction safety for the method for the present invention
Except efficiency, construction power consumption is reduced.
2, sulphur concrete is a kind of thermoplastic material, by modified sulfur, mineral aggregate and filler in proportion on 138 DEG C of left sides
Right mixing is cast, and has good corrosion resistance and density, and 48h compression strength pours half an hour just up to 40MPa or more
Up to the 65% of ultimate strength;Due to easy for construction and be not required to conserve, certain application is obtained in salvaging at present;This field
The interior conventional understanding for sulphur concrete is that it should not be used in temperature higher than 90 DEG C and open fire contact, hot and cold alternation, temperature
Change dramatically and the position for directly bearing shock, the present invention breaches conventional understanding, using its thermoplasticity, that is, utilizes sulphur coagulation
It is fast to realize precast concrete lining cutting in shield method Freezing Method for Cross-passage Construction for the low-melting characteristic of soil, loose portal concrete structure
Speed is abolished.
Detailed description of the invention
Fig. 1 is the "T"-shaped interface diagram of service channel and main track tunnel in the present invention;
Fig. 2 is sulphur concrete lining cutting sectional view in portal in the present invention;
Fig. 3 is pre-buried heating wire distribution form schematic diagram in sulphur concrete lining cutting in portal in the present invention;
Fig. 4 is compound section of jurisdiction schematic diagram in the present invention.
Figure label: sulphur concrete lining cutting in 1 portal, the outer steel grating of 2 portals, 3 main track tunnel reinforced concrete sections of jurisdiction,
4 service channel steel pipe sheets, 5 service channel reinforced concrete segments, 6 heating wire.
Specific embodiment
Fig. 1 show the "T"-shaped interface of service channel and main track tunnel in the present embodiment, main track tunnel reinforced concrete
The internal diameter of section of jurisdiction 3 isThe internal diameter of service channel steel pipe sheet 4 and service channel reinforced concrete segment 5 isTherefore, in shield method Freezing Method for Cross-passage Construction, service channel portal internal diameter is
Referring to Fig. 1 and Fig. 4, the compound section of jurisdiction that can quickly abolish in shield Freezing Method for Cross-passage Construction in the present embodiment is using sulphur
Sulphur coagulation in the portal within service channel portal is in sulphur concrete and machinable glass fiber-reinforced polymer production main track tunnel
Native lining cutting 1 will be in steel grating outside the portal other than service channel portal in sulphur concrete lining cutting 1 in portal and main track tunnel
2 are prefabricated into integrated compound section of jurisdiction by pouring;Being embedded in sulphur concrete lining cutting 1 in the portal of compound section of jurisdiction can lead to
The heating wire 6 of electricity fever.Portal within the service channel portal made of sulphur concrete and machinable glass fiber-reinforced polymer
The intensity of interior sulphur concrete lining cutting 1 can guarantee after main track tunnel is assembled to tunnel before Freezing Method for Cross-passage Construction up to 40MPa or more
The safety in road;Sulphur concrete main reinforcement selects glass fiber-reinforced polymer to increase master on the basis of guaranteeing concrete pipe sheet intensity
The machinability of muscle.
Referring to figs. 2 and 3, in specific implementation, multilayer is set by heating wire 6, same layer heating wire is distributed in portal
On the identical thickness position of sulphur concrete lining cutting 1, the heating wire point of different layers is in sulphur concrete lining cutting 1 in portal
On different thickness positions, the working power independent control of the heating wire of variant layer.The power that each layer heating wire is arranged is
1000w, normal temperature resistance are 40 Ω, and the spacing between adjacent two layers heating wire is 50mm.
The restructuring bankrupt for the compound section of jurisdiction that can quickly abolish in shield Freezing Method for Cross-passage Construction in the present embodiment is:
It is made in main track tunnel and is within service channel portal of sulphur concrete and machinable glass fiber-reinforced polymer
Sulphur concrete lining cutting 1 in portal will be in other than service channel portal in sulphur concrete lining cutting 1 in portal and main track tunnel
The outer steel grating 2 of portal be prefabricated into integrated compound section of jurisdiction by pouring;Sulphur concrete serves as a contrast in the portal of compound section of jurisdiction
Build be embedded in 1 can heating power heating wire 6, compound section of jurisdiction forms subway area by assembled after detection reaches construction requirement
Between shield tunnel.
In service channel shield launching or reception, the electricity being embedded in portal in sulphur concrete lining cutting 1 is connected first
The working power of heated filament 6 makes in portal sulphur concrete lining cutting 1 obtain temperature rise by the electric heating of heating wire 6, reaches in temperature rise
130~150 DEG C of setting and when making that sulphur concrete lining cutting 1 becomes loose in portal, jacking cutter head of shield machine is cut
Realize that the quick of sulphur concrete lining cutting 1 is abolished in portal, residue is with the material discharge Tu Cang that fills in barn.
In specific implementation, for the heating wire 6 of multilayer setting, controlled one by one according to the jacking cutting depth of cutter head of shield machine
Each layer heating wire in turn switches on power supply, connects the heating wire far from cutterhead side again after cutterhead jacking in place, this form has
Effect has ensured the safety of work progress.
In compound section of jurisdiction in every cubic metre of portal sulphur concrete lining cutting material mixture ratio are as follows:
550~600kg of sulphur;350~400kg of mountain flour;23~48kg of polysulfide rubber;Surplus is coarse aggregate stone;
Specific material utilization amount can be with are as follows:
Proportion 1: sulphur 600kg;Mountain flour 350kg;Polysulfide rubber 48kg;Stone 1380kg;
Proportion 2: sulphur 580kg;Mountain flour 400kg;Polysulfide rubber 48kg;Stone 1300kg;
Proportion 3: sulphur 550kg, mountain flour 350kg, polysulfide rubber 23kg, stone 1500kg;
Said ratio 1: its Mix Ratio Test intensity is used in buried depth 10-25m range inner tunnel up to 40MPa;
Said ratio 2: its Mix Ratio Test intensity is used in buried depth 10m and following tunnel up to 30MPa;
Said ratio 3: its Mix Ratio Test intensity is used in buried depth 25m and the above tunnel up to 50MPa;
In said ratio, using sulphur as concrete gel rubber material, coarse aggregate and mountain flour are concrete primary structural material, are added
Addition polymerization sulphur rubber enhances its toughness, and configures glass fiber-reinforced polymer and do main reinforcement;
Prefabrication process: heating sulphur be dehydrated in 130 DEG C -150 DEG C of at a temperature of thawing first, powder and aggregate is added,
It stirs evenly;Enter mould immediately with 60 DEG C of temperature to pour, natural cooling;It is small up to the 65% of ultimate strength, 48 to pour half an hour
When unconfined compressive strength up to 40MPa or more;For layered arrangement heating wire, poured for precast concrete lining cutting using layering
Build, pour every time with a thickness of 50mm.
Claims (8)
1. the compound section of jurisdiction that can be quickly abolished in shield Freezing Method for Cross-passage Construction, it is characterized in that: using sulphur concrete and machinable
Glass fiber-reinforced polymer production is in sulphur concrete lining cutting (1) in the portal within service channel portal in main track tunnel, will be described
Steel grating (2) portal other than service channel portal Wai is in sulphur concrete lining cutting (1) and main track tunnel in portal to pass through
It pours and is prefabricated into integrated compound section of jurisdiction;Being embedded in sulphur concrete lining cutting (1) in the portal of the compound section of jurisdiction can
The heating wire (6) of heating power.
2. the compound section of jurisdiction that can be quickly abolished in shield Freezing Method for Cross-passage Construction according to claim 1, it is characterized in that: described
Heating wire (6) is set as multilayer, and same layer heating wire is distributed in the identical thickness position of sulphur concrete lining cutting (1) in portal
On, the heating wire point of different layers is in portal on the different thickness positions of sulphur concrete lining cutting (1), the electricity of variant layer
The working power independent control of heated filament.
3. the compound section of jurisdiction that can be quickly abolished in shield Freezing Method for Cross-passage Construction according to claim 2, it is characterized in that: setting
Spacing between adjacent two layers heating wire (6) is 50mm.
4. the compound section of jurisdiction that can be quickly abolished in shield Freezing Method for Cross-passage Construction according to claim 1, it is characterized in that: described
The material mixture ratio of sulphur concrete lining cutting in every cubic metre of portal in compound section of jurisdiction are as follows:
550~600kg of sulphur;350~400kg of mountain flour;23~48kg of polysulfide rubber;Surplus is coarse aggregate stone.
5. the compound section of jurisdiction that can be quickly abolished in shield Freezing Method for Cross-passage Construction according to claim 4, it is characterized in that: described
The material mixture ratio of sulphur concrete lining cutting in every cubic metre of portal in compound section of jurisdiction are as follows:
Sulphur 600kg;Mountain flour 350kg;Polysulfide rubber 48kg;Stone 1380kg;
Or are as follows: sulphur 580kg;Mountain flour 400kg;Polysulfide rubber 48kg;Stone 1300kg;
Or are as follows: sulphur 550kg, mountain flour 350kg, polysulfide rubber 23kg, stone 1500kg.
6. the restructuring bankrupt for the compound section of jurisdiction that can be quickly abolished in shield Freezing Method for Cross-passage Construction, it is characterized in that:
Using the portal being in sulphur concrete and machinable glass fiber-reinforced polymer production main track tunnel within service channel portal
Interior sulphur concrete lining cutting (1) will be in service channel portal in sulphur concrete lining cutting (1) in the portal and main track tunnel
The outer steel grating (2) of portal in addition is prefabricated into integrated compound section of jurisdiction by pouring;The sulphur in the portal of the compound section of jurisdiction
Be embedded in sulphur concrete lining (1) can heating power heating wire (6).
In service channel shield launching or reception, the electric heating being embedded in portal in sulphur concrete lining cutting (1) is connected first
The working power of silk (6) makes in portal sulphur concrete lining cutting (1) obtain temperature rise by the electric heating of heating wire (6), in temperature rise
When reaching setting value and making that sulphur concrete lining cutting (1) becomes loose in portal, jacking cutter head of shield machine carries out cutting realization
Sulphur concrete lining cutting (1) quickly abolishes in portal.
7. the restructuring bankrupt for the compound section of jurisdiction that can be quickly abolished in shield Freezing Method for Cross-passage Construction according to claim 6,
It is characterized in: sets multilayer for the heating wire (6), same layer heating wire is distributed in sulphur concrete lining cutting (1) in portal
On identical thickness position, the heating wire point of different layers is in the different thickness positions of sulphur concrete lining cutting (1) in portal
On, the working power independent control of the heating wire of variant layer;It is controlled one by one respectively according to the jacking cutting depth of cutter head of shield machine
Layer heating wire in turn switches on power supply.
8. the restructuring bankrupt for the compound section of jurisdiction that can be quickly abolished in shield Freezing Method for Cross-passage Construction according to claim 6 or 7,
It is characterized in that: the spacing between setting adjacent two layers heating wire (6) is 50mm.
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CN201811495542.5A CN109339819A (en) | 2018-12-07 | 2018-12-07 | The compound section of jurisdiction that can be quickly abolished in shield Freezing Method for Cross-passage Construction and restructuring bankrupt |
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CN201811495542.5A CN109339819A (en) | 2018-12-07 | 2018-12-07 | The compound section of jurisdiction that can be quickly abolished in shield Freezing Method for Cross-passage Construction and restructuring bankrupt |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111927491A (en) * | 2020-08-21 | 2020-11-13 | 上海市隧道工程轨道交通设计研究院 | Shield method lining structure for rail transit station |
CN113107502A (en) * | 2021-04-23 | 2021-07-13 | 中铁四局集团第二工程有限公司 | Structure for connecting passage structure portal |
CN113338993A (en) * | 2021-06-23 | 2021-09-03 | 中铁一局集团有限公司 | Connecting channel reinforcing ring beam structure and construction method thereof |
CN114673194A (en) * | 2022-04-02 | 2022-06-28 | 中电建路桥集团有限公司 | Tunnel double-hole folded plate arch structure steel bar main body and construction method thereof |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111927491A (en) * | 2020-08-21 | 2020-11-13 | 上海市隧道工程轨道交通设计研究院 | Shield method lining structure for rail transit station |
CN113107502A (en) * | 2021-04-23 | 2021-07-13 | 中铁四局集团第二工程有限公司 | Structure for connecting passage structure portal |
CN113107502B (en) * | 2021-04-23 | 2022-07-22 | 中铁四局集团第二工程有限公司 | Structure for connecting passage structure portal |
CN113338993A (en) * | 2021-06-23 | 2021-09-03 | 中铁一局集团有限公司 | Connecting channel reinforcing ring beam structure and construction method thereof |
CN113338993B (en) * | 2021-06-23 | 2022-08-09 | 中铁一局集团有限公司 | Connecting channel reinforcing ring beam structure and construction method thereof |
CN114673194A (en) * | 2022-04-02 | 2022-06-28 | 中电建路桥集团有限公司 | Tunnel double-hole folded plate arch structure steel bar main body and construction method thereof |
CN114673194B (en) * | 2022-04-02 | 2023-08-18 | 中电建路桥集团有限公司 | Tunnel double-hole folded plate arch structure steel bar main body and construction method thereof |
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