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 PDF

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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
Authority
CN
China
Prior art keywords
portal
jurisdiction
lining cutting
sulphur
concrete lining
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811495542.5A
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Chinese (zh)
Inventor
康会鑫
程文锋
丁修恒
郎志超
何邦亮
孙顺熹
赵旭东
高伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Civil Engineering Co Ltd of CREC
Urban Rail Transit Engineering Branch of Shanghai Civil Engineering Co Ltd of CREC
Original Assignee
Shanghai Civil Engineering Co Ltd of CREC
Urban Rail Transit Engineering Branch of Shanghai Civil Engineering Co Ltd of CREC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Civil Engineering Co Ltd of CREC, Urban Rail Transit Engineering Branch of Shanghai Civil Engineering Co Ltd of CREC filed Critical Shanghai Civil Engineering Co Ltd of CREC
Priority to CN201811495542.5A priority Critical patent/CN109339819A/en
Publication of CN109339819A publication Critical patent/CN109339819A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04Lining with building materials
    • E21D11/08Lining with building materials with preformed concrete slabs
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04Lining with building materials
    • E21D11/08Lining with building materials with preformed concrete slabs
    • E21D11/086Methods of making concrete lining segments

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  • 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

The compound section of jurisdiction that can be quickly abolished in shield Freezing Method for Cross-passage Construction and restructuring bankrupt
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.
CN201811495542.5A 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 Pending CN109339819A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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