CN1912258A - Tunnel processing system suitable for large stratigraphic uniform sedimentation or dislocation - Google Patents
Tunnel processing system suitable for large stratigraphic uniform sedimentation or dislocation Download PDFInfo
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- CN1912258A CN1912258A CN 200610029796 CN200610029796A CN1912258A CN 1912258 A CN1912258 A CN 1912258A CN 200610029796 CN200610029796 CN 200610029796 CN 200610029796 A CN200610029796 A CN 200610029796A CN 1912258 A CN1912258 A CN 1912258A
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Abstract
A tunnel processing system adapting nonuniform subsidence or dislocation of mass-value stratum increases longitudinal flexibility of structure while section of shield tunnel is expanded by said system for raising structure adaptability to nonuniform subsidence and dislocation.
Description
Technical field
The present invention relates to tunnel-like, relate to a kind of tunnel processing system of the adaptable for large value stratum ununiform settling or changing of the relative positions concretely.
Background technology
Ground fissure be face of land rock-soil layer under natural cause and human factor effect, produce cracking and form the phenomenon in certain-length and width crack on ground.Ground fissure is the result of multifactor stack, and in the ground fissure activity system, its origin cause of formation act as the master with natural geology, and human factor is auxilliary.The activity of ground fissure has three-dimensional deformation characteristics, shows as vertical sedimentation, horizontal stretch-draw and twisting.
Because the activity of ground fissure is a dynamic change procedure, the origin cause of formation, mechanism and type are all very complicated, and has tangible segmented activity feature according to moving towards difference, the face of land that has has obviously and appears, the tool that has is lain concealed property, to build, the destruction form of structure also has nothing in common with each other, so the method for preventing and treating of engineering also should be at the different active situation and the space exhibition step characteristic of ground fissure, segmentation is considered.
At ground fissure active situation and space exhibition step characteristic, need relevant specialities such as circuit, structure, track and waterproof to take all factors into consideration.At first structure design will adapt to its different deformation requirements, the displacement of its generation is controlled in the default position and structure, and this body structure of tunnel is not damaged.In this scope, reserve enough deformation spaces simultaneously,, and handle joint waterproofing well so that adjust track circuit.
In the construction of tunnel of prior art, the ground fissure for a large amount of value stratum differential settlements or the changing of the relative positions cause for example in the above changing of the relative positions amount of 10mm, does not also have efficient ways at present.
Summary of the invention
The objective of the invention is according to above-mentioned the deficiencies in the prior art part, a kind of tunnel processing system of the adaptable for large value stratum ununiform settling or changing of the relative positions is provided, this structure is when enlarging the shield tunnel section, increased the longitudinal flexible of structure, improved the compliance of structure the differential settlement and the changing of the relative positions.
The object of the invention realizes being finished by following technical scheme:
A kind of tunnel processing system of the adaptable for large value stratum ununiform settling or changing of the relative positions, it is characterized in that the size of the size of described tunnel contour greater than tunnel standard section profile, if its difference is a Δ, described Δ value, satisfying under the safety factor of national Specification, corresponding with the discreet value of this tunnel structure location stratum differential settlement or changing of the relative positions maximum perpendicular displacement in design period.
Described tunnel is a shield tunnel, its liner structure is connected and composed by some lining cutting ring sections, and having one in described some lining cutting ring sections at least is large deformation lining cutting ring section, it is assembled that this lining cutting ring segment structure adopts two lining papers to build ring, lining cutting ring assembly unit face is provided with the location and installation hole, and what adopted the section of jurisdiction of described lining cutting ring is steel material.
Form the lining cutting ring of large deformation lining cutting ring section and " Ω " type rubber fastening band be installed, offer groove on the section of jurisdiction of formation lining cutting ring with deformation joint between the ring, the flange of waterstop end tightly densification in groove.
Be provided with Grouting Pipe in the lining ring structure of described deformation joint.
Described tunnel is the structure built by opencut method tunnel, and this structure tunnel is combined by the rectangular configuration that at least two monobloc casts form, and the seam between rectangular configuration and the structure is positioned at the ground fissure place that is caused by the stratum differential settlement or the changing of the relative positions that estimates.
Be provided with middle buried water stop between the structure seam, and after this waterstop, reserve Grouting Pipe in the structure of seam side.
Be provided with two pass Ω type rubber fastening band between described structure seam, be reserved with Grouting Pipe in the structure of the seam side between two pass Ω type rubber fastening band.
The design of railway roadbed in the described tunnel is adopted is the simply supported beam one plate combination railway roadbed of floating, and this simply supported beam solid concrete roabed is crossed over the ground fissure area of estimating of being caused by the stratum differential settlement or the changing of the relative positions, the both sides sliding device of setting up defences.
Rail beam in the described tunnel is height-adjustable rail beam, under railway roadbed rail beam is set, and rail beam is bearing on the height-adjustable bearing.
Be provided with automatic checkout system in the described tunnel, on the tunnel structure of monitoring site in the ground fissure influence basin.
Advantage of the present invention is, simple in structure, reliable in quality can adapt to the stratum settlement and the changing of the relative positions of higher value, avoids the damage of reinforced concrete segment in the tunnel, and every ring large deformation ring design can adapt to changing of the relative positions amount and the circumferential weld amount of opening of 10-100mm, good water-proof effect.
Summary of drawings
Accompanying drawing 1 is large diameter shield tunnel cross-sectional configuration schematic diagram of the present invention;
Accompanying drawing 3 is the local enlarged diagram of accompanying drawing 2;
Accompanying drawing 5 is arranged schematic diagram for Rectangular Tunnel facade of the present invention;
Accompanying drawing 6 is large deformation articulating seam waterproof construction schematic diagram of the present invention;
Accompanying drawing 7 is rectangular configuration seam waterproof structural representation of the present invention;
Concrete technical scheme
Feature of the present invention and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that technician's of the same trade understanding:
Shown in Fig. 1-7, label 1-41 represents respectively: steel pipe sheet 1, steel pipe sheet 2, two ring steel pipe sheet stitching positions 3, Ω type waterstop 4, location and installation hole 5, nut 6, bolt 7, packing ring 8, rail level 9, rail beam 10, the plate railway roadbed 11 of floating, can regulate bearing 12, rectangular configuration 13, ground fissure 14, seam 15, rectangular configuration 16, the plate 17 of floating, freely-supported solid concrete roabed 18, the plate 19 of floating, solid concrete roabed 20, reserve injected hole 21, the slip casting of sedimentation space fills 22, nut 23, set bolt 24, groove 25, sponge rubber fill plate 26, elastic rubber gasket 27, middle buried water stop 28, sponge rubber fill plate 29, pre-embedded steel slab 30, the first road Ω type waterstop 31, the second road Ω type waterstop 32, back leg iron 33, pre-buried Grouting Pipe 34, pre-buried Grouting Pipe 35, acorn nut 36, bolt 37, press strip 38, pressing plate 39, shield structure active well 40, shield structure active well 41.
Embodiment one: at shield tunnel.
Present embodiment is connected and composed by some lining cutting ring sections, wherein the internal diameter overgauge section shield tunnel liner ring section internal diameter of lining cutting ring section.Vertical displacement amount in ground fissure position is bigger, the cross dimensions of standard section design is the requirement of crack place's malformation contentedly, therefore influence the shield tunnel that band scope domestic demand designs big section in ground fissure, take into full account the deflection that it causes because of the ground fissure development during metro operation.During design, should be according to the discreet value of ground fissure maximum perpendicular displacement in design period in the scope of design, consider that certain safety factor determines the design load Δ.Be made as A as standard section shield tunnel liner internal diameter, then enlarging section shield tunnel liner internal diameter is the A+ Δ.By circuit supertronic, track adjustment, operation monitoring and integrated control means such as the slip casting processing combines, its adaptable maximum settlement is greater than the A+ Δ.
According to subsidence curve, keep at a certain distance away in some lining cutting ring sections and arrange a large deformation ring, the large deformation ring of present embodiment is assembled by steel pipe sheet 1, steel pipe sheet 2, and the assembly unit face of two rings is provided with location and installation hole 5.
Between constructing tunnel stage steel pipe sheet 1, steel pipe sheet 2, adopt bolt 7 to connect the location at 5 places, location and installation hole, after the whole piece tunnel advances end and stablizes, pine nut 6 is installed Ω rubber fastening band 4 at deformation joint, and this joint form can adapt to the lining cutting ring and open more greatly and the changing of the relative positions.In the structure operational phase, can reach by demounting bolt 7 and allow the purpose of malformation, with the stratum settlement and the changing of the relative positions that adapts to higher value.
Butterfly spring can be filled up in the position of the packing ring 8 on bolt 7, to discharge the longitudinal bolt stress in tunnel, avoids the damage of reinforced concrete segment.
During specific design, every ring design can adapt to changing of the relative positions amount and the circumferential weld amount of opening of 10-100mm.
Can reserve Grouting Pipe on steel pipe sheet 1, the steel pipe sheet 2, can adopt grouting and reinforcing to handle to the empty stratum that forms because of below, ground fissure motion tunnel at any time.
Deformation joint also is provided with the elastic rubber gasket 27 of special cross section, and the sealing pad is based on ethylene propylene diene rubber, and the top is laminated with the porous type cross-section structure form of hydro-expansive rubber.It is compared with the trapezoidal sealing mat of common lining cutting seam of this engineering, possesses under certain hydraulic condition, adapts to the ability of moderate finite deformation amount.
Also be provided with sponge rubber fill plate 26 in the deformation joint, so that the control initial seam amount of opening.
Ω type rubber fastening band 4 is bigger because of the deformable size of its ridge, and accompanies the nylon fiber layer in the waterstop, so can adapt to the Chinese People's Anti-Japanese Military and Political College's deformability under certain hydraulic condition; Groove 25 by offering on the section of jurisdiction 1,2 simultaneously, can pass through nut 23, set bolt 24 with the flange of waterstop end tightly densification in groove 25, play the waterproof effect of good sealing Ω type rubber fastening band end.Can reach the purpose of sealing whole piece large deformation ring in conjunction with slip casting in case of necessity.
For the selection of steel pipe sheet 1, steel pipe sheet 2 diameters, the active level that needs to consider ground fissure or stratum sudden change sedimentation on the basis of existing structure design size is determined the affluence amount of size.
Embodiment two: at the structure built by opencut method tunnel.
Vertical displacement amount in ground fissure position is bigger, the cross dimensions requirement of crack 6 places malformation contentedly of standard section design, therefore influence the structure built by opencut method tunnel that band scope domestic demand designs big section in ground fissure, take into full account the deflection that it causes because of the ground fissure development during metro operation.
The structure built by opencut method tunnel of present embodiment, be rectangular cross section, the overall size of tunnel cross-section is greater than the overall size of structure built by opencut method tunnel standard section, if its difference is a Δ, described Δ value is when design, should be according to the discreet value of ground fissure maximum perpendicular displacement in design period in the scope of design, consider that certain safety factor determines the design load Δ.
Present embodiment is reserved the malformation space, and design enlarges rectangular cross section, is the boundary with the ground fissure of estimating 14 that is caused by the stratum differential settlement or the changing of the relative positions, the two ends cut and cover tunneling, and segmentation is built, and constitutes rectangular configuration 13,16, is seam 15 therebetween.
Structure is being provided with slide plane by ground fissure 14 places, and this joint area allowed certain slide down momentum when the vertically changing of the relative positions took place up and down on the stratum.
Be reserved with Grouting Pipe in the rectangular configuration 13,16 of seam 15 both sides, be reserved with Grouting Pipe 21 in the base plate in tunnel, can in time carry out slip casting and fill 22 the sedimentation space.
The base plate in tunnel is arranged with sand cushion.
Buried water stop 28 in structure seam 15 places are provided with, and the first road Ω type waterstop 31, the second road Ω type waterstop 32, between the middle buried water stop 28 and the first road Ω type waterstop 31, reserved pre-buried Grouting Pipe 34, pre-buried Grouting Pipe 35 respectively between the first road Ω type waterstop 31 and the second road Ω type waterstop 32, can under the situation that middle buried water stop 28, the first road Ω type waterstop 31 lost efficacy, in limited space, form new water-proof wire by grouting filling.
Acorn nut 36, bolt 37, press strip 38, pressing plate 39 and back leg iron 33 are used for installing and fixing of Ω type waterstop 31,32.
In the material of buried water stop 28 be steel limit rubber fastening band, the steel limit of waterstop 28 ends can make itself and the good interlock of concrete, but this waterstop commensurate structure deformation ability is limited.
Accompany two-layer nylon fiber layer in the first road Ω type waterstop 31, the second road Ω type waterstop 32, and the waterstop middle part length of adaptation deformability is very big, so can adapt to sizable deflection ability.The casting die system that matches with this type of Ω type waterstop utilizes lever principle, can reach the waterproof effect of sealing waterstop end well; Near the waterstop two ends a plurality of small tooths are arranged simultaneously, strengthened the sealing performance of waterstop and basal plane better; The flange of waterstop end can prevent that waterstop from bearing under the large deformation sedimentation operating mode, coming off from the casting die system in addition.
The design of railway roadbed in the tunnel is adopted is simply supported beam one plate 17, the 19 combination railway roadbeds of floating, this simply supported beam solid concrete roabed 18 is crossed over the ground fissure area of estimating of being caused by the stratum differential settlement or the changing of the relative positions, the both sides sliding device of setting up defences, the two ends certain distance is aided with the solid concrete roabed 20 of Floated Slab Track Structure, can play the effect of the railway roadbed discrepancy in elevation that adjusting causes because of sedimentation.Simply supported beam one is floated, and to have the slag railway roadbed to adjust circuit faster, convenient for plate combination railway roadbed, and the regular maintenance amount is little.
When the tunnel structure relative settlement is above above 10cm, rail beam 10 is set under railway roadbed, rail beam 10 is bearing on the height-adjustable bearing 12, when tunnel subsidence is big, by regulating bearing 12 the track platform is raised to desired location.This scheme needs bigger equipment installation, maintenance space, is only applicable in the bigger Rectangular Tunnel in cross dimensions and space, and need combines with unit of operation's management.
Cross over ground fissure band line design and be upward slope or gentle slope, and certain surplus capacity is arranged, both just operation back structure generation sedimentation also can be adjusted by the circuit supertronic.After subway builds up operation, arrange the monitoring point on the section of jurisdiction in the ground fissure influence basin, the distortion situation in 24 hours on-line monitoring tunnels realizes remote monitoring, report structural behavior automatically, and classification is provided with the sedimentation early warning value.Take different measures according to different early warning values, as distortion hour, can start automatic filling system stratum outside the tunnel is reinforced; When distortion was big, in time the notification technique personnel took emergency measures.
Claims (10)
1, a kind of tunnel processing system of the adaptable for large value stratum ununiform settling or changing of the relative positions, it is characterized in that the size of the size of described tunnel contour greater than tunnel standard section profile, if its difference is a Δ, described Δ value, satisfying under the safety factor of national Specification, corresponding with the discreet value of this tunnel structure location stratum differential settlement or changing of the relative positions maximum perpendicular displacement in design period.
2, the tunnel processing system of a kind of adaptable for large value stratum ununiform settling or changing of the relative positions according to claim 1, it is characterized in that described tunnel is a shield tunnel, its liner structure is connected and composed by some lining cutting ring sections, and having one in described some lining cutting ring sections at least is large deformation lining cutting ring section, it is assembled that this lining cutting ring segment structure adopts two lining papers to build ring, lining cutting ring assembly unit face is provided with the location and installation hole, and what adopted the section of jurisdiction of described lining cutting ring is steel material.
3, the tunnel processing system of a kind of adaptable for large value stratum ununiform settling or changing of the relative positions according to claim 2, it is characterized in that forming the lining cutting ring of large deformation lining cutting ring section and the deformation joint between the ring Ω type rubber fastening band is installed, constitute on the section of jurisdiction of lining cutting ring and offer groove, the flange of waterstop end tightly densification in groove.
4, the tunnel processing system of a kind of adaptable for large value stratum ununiform settling or changing of the relative positions according to claim 3 is characterized in that being provided with Grouting Pipe in the lining ring structure of described deformation joint.
5, the tunnel processing system of a kind of adaptable for large value stratum ununiform settling or changing of the relative positions according to claim 1, it is characterized in that described tunnel is the structure built by opencut method tunnel, this structure tunnel is combined by the rectangular configuration that at least two monobloc casts form, and the seam between rectangular configuration and the structure is positioned at the ground fissure place that is caused by the stratum differential settlement or the changing of the relative positions that estimates.
6, the tunnel processing system of a kind of adaptable for large value stratum ununiform settling or changing of the relative positions according to claim 5 is characterized in that being provided with middle buried water stop between the structure seam, and reserves Grouting Pipe after this waterstop in the structure of seam side.
7, the tunnel processing system of a kind of adaptable for large value stratum ununiform settling or changing of the relative positions according to claim 5, it is characterized in that being provided with between described structure seam two pass Ω type rubber fastening band, be reserved with Grouting Pipe in the structure of the seam side between two pass Ω type rubber fastening band.
8, the tunnel processing system of a kind of adaptable for large value stratum ununiform settling or changing of the relative positions according to claim 1, what it is characterized in that railway roadbed design in the described tunnel adopts is the simply supported beam-plate of floating combination railway roadbed, this simply supported beam solid concrete roabed is crossed over the ground fissure area of estimating of being caused by the stratum differential settlement or the changing of the relative positions, the both sides sliding device of setting up defences.
9, the tunnel processing system of a kind of adaptable for large value stratum ununiform settling or changing of the relative positions according to claim 1, it is characterized in that the rail beam in the described tunnel is height-adjustable rail beam, under railway roadbed rail beam is set, rail beam is bearing on the height-adjustable bearing.
10, the tunnel processing system of a kind of adaptable for large value stratum ununiform settling or changing of the relative positions according to claim 1 is characterized in that being provided with automatic checkout system in the described tunnel, on the tunnel structure of monitoring site in the ground fissure influence basin.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610029796 CN1912258A (en) | 2006-08-07 | 2006-08-07 | Tunnel processing system suitable for large stratigraphic uniform sedimentation or dislocation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610029796 CN1912258A (en) | 2006-08-07 | 2006-08-07 | Tunnel processing system suitable for large stratigraphic uniform sedimentation or dislocation |
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| CN1912258A true CN1912258A (en) | 2007-02-14 |
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| CN 200610029796 Pending CN1912258A (en) | 2006-08-07 | 2006-08-07 | Tunnel processing system suitable for large stratigraphic uniform sedimentation or dislocation |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425430A (en) * | 2011-11-04 | 2012-04-25 | 上海交通大学 | Protection control method for resisting longitudinal deformation through shield tunnel structure in soft soil stratum |
| CN102733829A (en) * | 2011-04-07 | 2012-10-17 | 上海市电力公司 | Water-proof structure of tunnel lining joint in shield-method construction |
| CN104295305A (en) * | 2014-02-12 | 2015-01-21 | 齐洪军 | Process for achieving synchronous implementation of lining vault filling grouting and tunnel lining and equipment |
| CN105484762A (en) * | 2015-11-27 | 2016-04-13 | 广州市市政工程设计研究总院 | Construction method for opening of lateral large hole in large-section jacking pipe |
| CN106437755A (en) * | 2016-09-08 | 2017-02-22 | 中国神华能源股份有限公司 | Pipe section flexible joint and installation method thereof |
| CN108331585A (en) * | 2018-01-15 | 2018-07-27 | 中铁第勘察设计院集团有限公司 | Stratum breaking mine region method tunnel male type expands header structure and its construction method |
-
2006
- 2006-08-07 CN CN 200610029796 patent/CN1912258A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733829A (en) * | 2011-04-07 | 2012-10-17 | 上海市电力公司 | Water-proof structure of tunnel lining joint in shield-method construction |
| CN102733829B (en) * | 2011-04-07 | 2015-06-17 | 上海市电力公司 | Water-proof structure of tunnel lining joint in shield-method construction |
| CN102425430A (en) * | 2011-11-04 | 2012-04-25 | 上海交通大学 | Protection control method for resisting longitudinal deformation through shield tunnel structure in soft soil stratum |
| CN102425430B (en) * | 2011-11-04 | 2013-08-28 | 上海交通大学 | Protection control method for resisting longitudinal deformation through shield tunnel structure in soft soil stratum |
| CN104295305A (en) * | 2014-02-12 | 2015-01-21 | 齐洪军 | Process for achieving synchronous implementation of lining vault filling grouting and tunnel lining and equipment |
| CN105484762A (en) * | 2015-11-27 | 2016-04-13 | 广州市市政工程设计研究总院 | Construction method for opening of lateral large hole in large-section jacking pipe |
| CN106437755A (en) * | 2016-09-08 | 2017-02-22 | 中国神华能源股份有限公司 | Pipe section flexible joint and installation method thereof |
| CN108331585A (en) * | 2018-01-15 | 2018-07-27 | 中铁第勘察设计院集团有限公司 | Stratum breaking mine region method tunnel male type expands header structure and its construction method |
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