CN106050263A - Shield tunnel segment structure and connecting structure thereof - Google Patents

Shield tunnel segment structure and connecting structure thereof Download PDF

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Publication number
CN106050263A
CN106050263A CN201610558047.9A CN201610558047A CN106050263A CN 106050263 A CN106050263 A CN 106050263A CN 201610558047 A CN201610558047 A CN 201610558047A CN 106050263 A CN106050263 A CN 106050263A
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China
Prior art keywords
steel plate
shield tunnel
layer
jurisdiction
chip architecture
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CN201610558047.9A
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Chinese (zh)
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CN106050263B (en
Inventor
李攀
王二中
万灵
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Suzhou University
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Suzhou University
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    • EFIXED CONSTRUCTIONS
    • E21EARTH 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 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
    • E21D11/083Methods or devices for joining adjacent concrete segments

Abstract

The invention discloses a shield tunnel segment structure and a connecting structure thereof. The shield tunnel segment structure comprises a segment body and is characterized in that the segment body is mainly composed of a steel plate layer, a concrete layer wrapping the steel plate layer, and steel mesh reinforcements which are located on the two sides of the steel plate layer correspondingly and embedded in the concrete layer; the lateral edges of the segment body are fixedly provided with metal connectors, the outer sides of the metal connectors are provided with grooves for containing water stops, and the water stops are installed inside the grooves; and an outer protecting layer is arranged on the outer side of the segment body, and the outer protecting layer is a polyurea layer combined on the outer side surface of the segment body. The connecting structure is composed of two adjacently arranged shield tunnel segment structures and a connecting part for connecting the two shield tunnel segment structures. A connecting steel plate is composed of a middle arc-shaped section and flat sections on two sides. The shield tunnel segment structure and the connecting structure thereof have the characteristics that thickness is small, strength is high and the connectors are not prone to damage; and the connector deformation control effect is good, the seam waterproof effect is good, durability is high, and repairing is convenient.

Description

A kind of shield tunnel chip architecture and attachment structure thereof
Technical field
The present invention relates to a kind of shield tunnel construction, be specifically related between a kind of shield tunnel chip architecture and section of jurisdiction connect knot The design of structure.
Background technology
In recent years, along with the reinforcement putting into infrastructure construction, urban infrastructure cause achieves fast development.With This simultaneously, the tunnel previously built, run through for many years, shield tunnel construction occur in that longitudinal differential settlement, transversely deforming, The disease problems such as long-term seepage, joint infringement, crackle crack, section of jurisdiction, reduce tunnel military service quality, cause to operation security Certain threat.
At present, shield tunnel construction typically uses inner bolt between reinforced concrete segment erection method, section of jurisdiction to connect, connect Seam uses elastic sealing gasket or expanded rubber bar waterproof.Such as, in Chinese invention patent application CN104612710A, in background skill Art part discloses a kind of duct pieces of shield tunnel longitudinal seam joint, is common structure of the prior art.Can from Fig. 1 b of this document See, duct pieces of shield tunnel is reserved with bolt installation hand hole, through penetrating section of jurisdiction between the bolt installation hand hole on adjacent section of jurisdiction Bolt hole connects, and adjacent section of jurisdiction is connected by built-in connecting bolt.
There is following defect in the duct pieces of shield tunnel of said structure: one, connecting bolt installation hand hole reserved on section of jurisdiction And bolt hole, segment joint uses built-in connecting bolt to couple section of jurisdiction, although this structure can strengthen tunnel structure globality Can, but, connecting bolt installation hand hole reserved on section of jurisdiction and bolt hole not only reduce section of jurisdiction mechanical property, also easy shape Becoming the passage of percolating water, it addition, connecting bolt is built-in at duct piece connector, it is difficult to repair after damaging.Two, in existing design 5cm concrete is had, both as protective layer, again as force part outside steel reinforcement cage within section of jurisdiction.But, at seam areas Protective layer, bear locally concentrated forces effect when tunnel deformation the most damaged, cracks, crack, falls block etc., forms percolating water Passage, causes substantial amounts of water leakage defect;And in other position, bury the tunnel structure in underground for a long time by corrosive ion shadow Ringing relatively big, concrete easily ftractures, and in turn results in reinforcement corrosion, affects tunnel segment structure durability.Three, joint waterproofing, is usually Use elastic rubber gasket to add hydro-expansive rubber bar at seam crossing, but it is the most aging, durability is relatively low, waterproof effect Poor, particularly paste with glue and be fixed on surface, section of jurisdiction, easily come off.Chinese invention patent application CN104612710A attempts The layout of position and water proof rubber by changing bolt solves the problems referred to above, but which results in the lengthening of bolt, bolt Entirety is had a negative impact by hole layout in tunnel segment structure by force intensity.Four, under high load capacity volume of traffic demand, newly built tunnels Section presents increasing trend, and the tunnel segment structure thickness adapted therewith is more and more thicker, and sectional space reduces accordingly.China In a kind of duct pieces of shield tunnel longitudinal seam joint disclosed in application for a patent for invention CN10476341A, by the office to section of jurisdiction connecting portion Portion thickeies to be increased by force intensity, but it causes the irregular of section of jurisdiction interior shape, for increasing sectional space limited use, And the problems such as aforementioned section of jurisdiction mechanical property and water resistance can not be solved.
Along with the progress of extensive tunnel construction, large-scale maintenance problem will be faced from now on.Therefore, research is opened Sending out a kind of, intensity is high, thickness is little, joint damages shield tunnel construction low, that durability is high and has great importance.
Summary of the invention
The goal of the invention of the present invention is to provide a kind of shield tunnel chip architecture, and a kind of for duct pieces of shield tunnel knot The attachment structure of structure, thus strengthen mechanical property and the durability of tunnel duct piece, facilitate the maintenance of attachment structure.
To achieve the above object of the invention, the technical solution used in the present invention is: a kind of shield tunnel chip architecture, including pipe Sheet body, described section of jurisdiction body mainly by steel plate layer, parcel steel plate layer concrete layer, lay respectively at steel plate layer both sides and bury underground Bar-mat reinforcement in concrete layer is constituted;Metal socket, described metal socket it is installed with at the lateral margin of described section of jurisdiction body Outside be provided with accommodate waterstop groove, in described groove, waterstop is installed;The outside of described section of jurisdiction body is provided with outer guarantor Sheath, described external protection is the polyurea layer being compounded in outer body face, section of jurisdiction.
Further technical scheme, is connected with Interal fixation in the both sides of described steel plate layer and steel nail is distributed, adjacent steel nail Spacing be 15~30 centimetres, a diameter of 10~15 millimeters of steel nail, a length of 10~30 millimeters, the thickness of described steel plate layer is 10~30 millimeters.
In technique scheme, described steel plate layer and steel nail can be structure as a whole, it is also possible to respectively by weldering after molding Connect in succession.
In technique scheme, described concrete layer is made up of RPC, the concrete thickness of steel plate both sides It is respectively 8~15 centimetres;The outer closely connected bar-mat reinforcement of described concrete layer, steel grid is 5cm ~ 20cm, bar diameter 6 millimeters ~ 8 milli Rice;Closely connected waterproof polyurea layer outside described bar-mat reinforcement, thickness is 10~20 millimeters.
In technique scheme, described waterstop is Ω shape GINA waterstop, has circular hole in the middle of waterstop.
Further technical scheme, described metal fitting member is for having reeded steel joint, and described groove has and stops The flange that water belt shape coordinates, flange edge is fillet.
The present invention discloses the attachment structure of a kind of shield tunnel chip architecture, by two adjacently positioned above-mentioned knots The shield tunnel chip architecture of structure and the connector of connection said two shield tunnel chip architecture are constituted, described connector bag Including junction steel plate and multiple fixing bolt, described junction steel plate is made up of the flat segments of middle segmental arc and both sides, described solid Determine bolt the described flat segments of both sides to be respectively fixedly connected with in two shield tunnel chip architectures.
Preferably technical scheme, described junction steel plate is for being inverted Ω shape.
In technique scheme, described junction steel plate is positioned at inside section of jurisdiction, and junction steel plate is bolted with section of jurisdiction.
Wherein, the radius of described junction steel plate segmental arc is 6~15 meters, the segment angle angular range of segmental arc be 90~ 180 °, the width of flat segments is 100~150 millimeters.
Owing to technique scheme is used, the present invention compared with prior art has the advantage that
1, the present invention uses polyurea materials to replace former concrete external protection, high intensity, strong elongation percentage, polyureas that corrosion resistance is strong Material, can stop that in soil and water resources, chloride ion directly contacts with section of jurisdiction material, and concrete material can be avoided corrosion micro-crack occur, Form etching channels.
2, the present invention uses Steel material joint to replace former concrete joint, it is to avoid when former concrete material is due to joint distortion The local damage that concentration power effect causes;
3, this law uses groove design in the middle of Steel material joint, can be firmly embedded by GINA waterstop;Steel material connects Head uses fillet design, it is to avoid the rectangular edge concentration power glycation damage to GINA waterstop.
4, the present invention uses RPC (RPC) to replace former high performance concrete, uses this kind of superhigh intensity, surpasses High tenacity and the cement-base composite material of high-durability, can reduce section of jurisdiction thickness and improve Anti-pull-press intensity, rupture strength simultaneously, break Fragility energy, corrosion resistance.
5, use in the middle of the section of jurisdiction of the present invention outside steel plate+steel stud frame, section of jurisdiction two and use bar-mat reinforcement, strengthen RPC material Anti-pull-press intensity, toughness, the performance such as rupture strength.
6, the present invention uses GINA waterstop to replace former elastic rubber gasket, hydro-expansive rubber bar.GINA waterstop Designing as first antiseep, its appearance design is Ω shape, can firmly embed steel joint groove, can deform with seam And deform, fill joint spaces simultaneously to greatest extent and stop formation leakage passage.
7, the present invention uses external Ω steel plate to replace former built-in connecting bolt.Ω steel plate as second steel waterproofing design, Effectively stop joint percolating water effect, it is achieved that flexible water and the waterproof combination of rigidity;Ω steel plate can limit effectively Joint faulting of slab ends processed deformation and joint open deformation;Ω steel plate forms bending resistance moment with steel joint, it is possible to effectively limits joint and opens Angle of release deforms;External steel plate replaces built-in connecting bolt, eliminates the bolt hole in tunnel segment structure, hand hole design, reduces section of jurisdiction Local damage and the probability of formation percolating water passage, and keep in repair more convenient.
Accompanying drawing explanation
Fig. 1 is the tunnel segment structure schematic diagram of the embodiment of the present invention;
Fig. 2 is duct piece connector position view in the embodiment of the present invention;
Fig. 3 is the structural representation of the junction steel plate in the embodiment of the present invention;
Fig. 4 is the normally assembled schematic diagram of the duct piece connector in the embodiment of the present invention;
Fig. 5 is in the embodiment of the present invention, tunnel duct piece connector status schematic diagram during shear action;
Fig. 6 is in the embodiment of the present invention, tunnel duct piece connector status schematic diagram during sagging moment effect;
Fig. 7 is in the embodiment of the present invention, tunnel duct piece connector status schematic diagram during hogging moment effect;
Wherein: 1, polyurea layer;2, bar-mat reinforcement;3, concrete layer;4, steel plate layer;5, steel nail;6, steel joint;7, GINA waterstop; 8, Ω shape junction steel plate.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment the invention will be further described:
Embodiment: see shown in Fig. 1 to Fig. 3, a kind of Novel shield tunnel duct piece, mainly include the thick polyurea layer 1 of 20mm;@ The bar-mat reinforcement 2 of 10cm × 10cm φ 8mm;The RPC layer 3(RPC200 that 3-10cm is thick);The steel plate that 12mm is thick Layer 4;It is positioned at the steel nail 5 of the@20cm × 20cm φ 13mm of steel plate both sides;It is positioned at the steel joint 6 of section of jurisdiction lateral margin;Ω shape GINA is only Water band 7;The junction steel plate 8 of Ω shape.
As it is shown in figure 1, section of jurisdiction main material uses RPC (RPC200), size thickness is 10cm.20mm is thick Polyurea materials be coated in outside the concrete of section of jurisdiction, it is possible to the direct of isolation concrete and groundwater environment contacts, it is to avoid corrode micro- The formation of crackle, reduces reinforcement corrosion probability.This polyurea water-proof anticorrosive coat and tunnel segment structure consistent size, but it is not involved in joint Stress effect, it is to avoid joint damage.
The bar-mat reinforcement of internal both sides, section of jurisdiction design pitch 10cm × 10cm, bar diameter 8mm, strengthens section of jurisdiction self further Intensity and cracking resistance.
Section of jurisdiction medium design steel plate+steel stud frame, steel plate thickness 13mm, steel nail spacing 20cm × 20cm, it is possible to further Strengthen the performances such as section of jurisdiction self Anti-pull-press intensity, shear strength, cracking resistance.
Segment design steel joint, joint global design is concave groove type, the upper and lower both sides of joint can bear bigger pressure and Not easy damaged, groove position can firmly embed GINA waterstop.The excessive position of joint groove uses fillet design, it is to avoid right angle Damage to waterstop.
As in figure 2 it is shown, seam is connected by inverted Ω shape junction steel plate structure, it is fixed in steel nail or stove bolt Section of jurisdiction inner surface.
As it is shown on figure 3, Ω shape junction steel plate structure uses steel material, such as Q235B.In the present embodiment, Ω shape connects steel Plate arc angle is 120 °, and thickness is 60mm.The concrete value of junction steel plate arc angle and thickness needs according to tunnel duct piece Parameter and tunnel health status select.
As shown in Figure 4, the docking assembly of adjacent section of jurisdiction, GINA waterstop leads to owing to assembly is squeezed in groove internal congestion percolating water Road, forms first flexible waterproof layer.Ω shape junction steel plate steel nail or stove bolt are fixed on section of jurisdiction inner surface, form second Steel waterproof layer.Being section of jurisdiction state tension or in compression in that case, pressure is mainly born by steel joint, and pulling force is mainly by Ω shape Junction steel plate bears.
As it is shown in figure 5, shear action is born in section of jurisdiction, shearing force is mainly born by Ω shape junction steel plate, does not produces between section of jurisdiction Raw faulting of slab ends effect.
As shown in Figure 6, duct piece connector bears sagging moment effect so that joint joined inside opens.Outside rigidity groove joint Side forms bending resistance moment with Ω shape rigidity plate.GINA waterstop with angle open deformation fill recess space be still first consolidate Flexible waterproof layer, Ω shape junction steel plate is the rigidity waterproof layer that second is firm.
As it is shown in fig. 7, duct piece connector bears hogging moment effect so that joint outer side seam opens.In rigidity groove joint Side forms bending resistance moment with Ω shape junction steel plate.GINA waterstop opens deformation with angle and fills recess space to be still first steady Solid flexible waterproof layer, Ω shape junction steel plate is the rigidity waterproof layer that second is firm.

Claims (10)

1. a shield tunnel chip architecture, including section of jurisdiction body, it is characterised in that: described section of jurisdiction body mainly by steel plate layer, Wrap up the concrete layer of steel plate layer, lay respectively at steel plate layer both sides the bar-mat reinforcement composition being embedded in concrete layer;Described pipe Being installed with metal socket at the lateral margin of sheet body, the outside of described metal socket is provided with the groove accommodating waterstop, described Waterstop is installed in groove;The outside of described section of jurisdiction body is provided with external protection, and described external protection is for being compounded in section of jurisdiction originally The polyurea layer of outside.
Shield tunnel chip architecture the most according to claim 1, it is characterised in that: at both sides and the steel plate of described steel plate layer Fixing connection is distributed steel nail, and the spacing of adjacent steel nail is 15~30 centimetres, a diameter of 10~15 millimeters of steel nail, and a length of 10 ~30 millimeters, the thickness of described steel plate layer is 10~30 millimeters.
Shield tunnel chip architecture the most according to claim 2, it is characterised in that: described steel plate layer and steel nail are integrated knot Structure, uses welding manner to connect.
Shield tunnel chip architecture the most according to claim 1, it is characterised in that: described concrete layer is mixed by reactive powder Solidifying soil is constituted, and the concrete thickness of steel plate both sides is respectively 8~15 centimetres;The outer closely connected bar-mat reinforcement of described concrete layer, bar-mat reinforcement Lattice are 5cm ~ 20cm, bar diameter 6 millimeters ~ 8 millimeters;Closely connected waterproof polyurea layer outside described bar-mat reinforcement, thickness is 10~20 millis Rice.
Shield tunnel chip architecture the most according to claim 1, it is characterised in that: described metal fitting member is recessed for having The steel joint of groove, described groove has and the flange of waterstop form fit, and flange edge is fillet.
Shield tunnel chip architecture the most according to claim 1, it is characterised in that: described waterstop is that Ω shape GINA is stopped Water band, has borehole structure in the middle of waterstop.
7. the attachment structure of a shield tunnel chip architecture, it is characterised in that: by two adjacently positioned claim 1 to 6 In arbitrary shield tunnel chip architecture and connect said two shield tunnel chip architecture connector constitute, described connector Including junction steel plate and multiple fixing bolt, described junction steel plate is made up of the flat segments of middle segmental arc and both sides, described The described flat segments of both sides is respectively fixedly connected with in two shield tunnel chip architectures by fixing bolt.
The attachment structure of shield tunnel chip architecture the most according to claim 7, it is characterised in that: described junction steel plate is It is inverted Ω shape.
The attachment structure of shield tunnel chip architecture the most according to claim 7, it is characterised in that: described junction steel plate position Inside section of jurisdiction, junction steel plate is bolted with section of jurisdiction.
The attachment structure of shield tunnel chip architecture the most according to claim 7, it is characterised in that: described junction steel plate The radius of segmental arc is 6~15 meters, and the segment angle angular range of segmental arc is 90~180 °, and the width of flat segments is 100~150 Millimeter.
CN201610558047.9A 2016-07-15 2016-07-15 A kind of shield tunnel chip architecture and its connection structure Active CN106050263B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110985043A (en) * 2019-12-10 2020-04-10 西南交通大学 Shield method hydraulic pressure tunnel lining structure
CN111677526A (en) * 2020-05-15 2020-09-18 中国路桥工程有限责任公司 Tunnel anti-seismic structure and method under complex geological condition
CN112589997A (en) * 2020-12-10 2021-04-02 同济大学 Design and manufacturing method of shield tunnel double-layer lining structure model

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0754593A (en) * 1993-08-12 1995-02-28 Ishikawajima Constr Materials Co Ltd Structure of connecting segment and reinforcement in tunnel structure
JP2001207800A (en) * 2000-01-28 2001-08-03 Kyoritsu Kagaku Sangyo Kk Segment joint filler for tunnel structure
CN102191940A (en) * 2011-05-16 2011-09-21 长江勘测规划设计研究有限责任公司 Water conveyance tunnel with prestressed composite lining for shield tunnelling
CN203796277U (en) * 2014-03-14 2014-08-27 上海市政工程设计研究总院(集团)有限公司 Composite pipe piece bolt hand hole layout structure
CN104612710A (en) * 2015-02-02 2015-05-13 同济大学 Shield tunnel segment longitudinal joint connector
CN105041337A (en) * 2015-08-12 2015-11-11 河海大学 Seam splicing structure of underground shield tunnel lining segments and waterproof method
CN204920980U (en) * 2015-07-31 2015-12-30 中铁第六勘察设计院集团有限公司 Shield tunnel structure antidetonation device under water
CN205840885U (en) * 2016-07-15 2016-12-28 苏州大学 A kind of shield tunnel chip architecture and attachment structure thereof

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0754593A (en) * 1993-08-12 1995-02-28 Ishikawajima Constr Materials Co Ltd Structure of connecting segment and reinforcement in tunnel structure
JP2001207800A (en) * 2000-01-28 2001-08-03 Kyoritsu Kagaku Sangyo Kk Segment joint filler for tunnel structure
CN102191940A (en) * 2011-05-16 2011-09-21 长江勘测规划设计研究有限责任公司 Water conveyance tunnel with prestressed composite lining for shield tunnelling
CN203796277U (en) * 2014-03-14 2014-08-27 上海市政工程设计研究总院(集团)有限公司 Composite pipe piece bolt hand hole layout structure
CN104612710A (en) * 2015-02-02 2015-05-13 同济大学 Shield tunnel segment longitudinal joint connector
CN204920980U (en) * 2015-07-31 2015-12-30 中铁第六勘察设计院集团有限公司 Shield tunnel structure antidetonation device under water
CN105041337A (en) * 2015-08-12 2015-11-11 河海大学 Seam splicing structure of underground shield tunnel lining segments and waterproof method
CN205840885U (en) * 2016-07-15 2016-12-28 苏州大学 A kind of shield tunnel chip architecture and attachment structure thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110985043A (en) * 2019-12-10 2020-04-10 西南交通大学 Shield method hydraulic pressure tunnel lining structure
CN110985043B (en) * 2019-12-10 2021-06-22 西南交通大学 Shield method hydraulic pressure tunnel lining structure
CN111677526A (en) * 2020-05-15 2020-09-18 中国路桥工程有限责任公司 Tunnel anti-seismic structure and method under complex geological condition
CN112589997A (en) * 2020-12-10 2021-04-02 同济大学 Design and manufacturing method of shield tunnel double-layer lining structure model

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