CN105507925B - Suitable for the tunnel segment structure of class rectangle shield tunnel - Google Patents
Suitable for the tunnel segment structure of class rectangle shield tunnel Download PDFInfo
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- CN105507925B CN105507925B CN201511018839.9A CN201511018839A CN105507925B CN 105507925 B CN105507925 B CN 105507925B CN 201511018839 A CN201511018839 A CN 201511018839A CN 105507925 B CN105507925 B CN 105507925B
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Abstract
The present invention is applied to the tunnel segment structure of class rectangle shield tunnel, and section is in class rectangle shape, and tunnel segment structure includes：Arch bottom arc section, the vault arc section positioned at section keystone and two haunch arc sections positioned at section both sides haunch position positioned at section arch bottom position；The radius of two haunch arc sections is equal, and is respectively less than the radius of arch bottom arc section and the radius of vault arc section；Encircle bottom arc section respectively with the smooth tangent connection of two haunch arc sections, vault arc section respectively with the smooth tangent connection of two haunch arc sections.Encircle bottom arc section respectively with the smooth tangent connection of two haunch arc sections, vault arc section respectively with the smooth tangent connection of two haunch arc sections, with good arching effect, be advantageous to reduce the moment of flexure and eccentric throw suffered by lining segment, the amount of reinforcement and lining thickness needed is reduced, corresponding soil excavation amount, concrete amount are also less.The Suporting structure tunneling boring cutting soil body is also helped in addition, and the influence to surrounding enviroment is smaller.
Description
Technical field
The present invention relates to tunneling shield technical field, refers in particular to a kind of section of jurisdiction suitable for class rectangle shield tunnel and ties
Structure.
Background technology
In tunneling shield, conventional tunnel cross-section is generally divided into one-tunnel one-track tunnel and single hole line double track tunnel at present,
Wherein, one-tunnel one-track tunnel includes small-diameter circular tunnel, and single hole line double track tunnel includes large-diameter circular tunnel, two circular tunnels and square
Shape tunnel.
But the line spacing of the double track tunnel in small-diameter circular tunnel is larger, the distance in tunnel to building is also larger, tunnel
Occupancy underground space scope is also larger, and influence of the shield-tunneling construction to surrounding building is also relatively large, and needs to excavate simultaneously
Two tunnels, duration are longer.The excavation space availability ratio in large-diameter circular tunnel is smaller, tunnel take underground space scope also compared with
Greatly.Sea-gull connected in star at the top of two circular tunnels be present, the soil body is not easy stabilization, is unfavorable for the Construction control of ground settlement, shield
Correction aggravation soil disturbance, and easily generation back of the body soil causes surface uplift herein, for the Construction control difficulty pole of ground settlement
Greatly.Secondly, the synchronous grouting hole of two circular tunnels is located at shield center two grooves up and down, after slurries need to fill up domain double-O-tube shield
Portion's structure void paths traversed is relatively long, and in soft soil layer, slurries can not fill structure void in time, ultimately result in
Ground deformation is larger.The section of jurisdiction concrete amount of Rectangular Tunnel is larger.
Therefore, it is necessary to existing tunneling shield tunnel segment structure is improved.
The content of the invention
In view of above mentioned problem, the invention provides a kind of tunnel segment structure suitable for class rectangle shield tunnel, the pipe
The section of chip architecture is in class rectangle shape, and the tunnel segment structure includes：Encircle the arch bottom arc section of bottom position positioned at the section, be located at
The vault arc section of the section keystone and two haunch arc sections positioned at the section both sides haunch position；Two
The radius of the individual haunch arc section is equal, and the half of the radius of respectively less than described arch bottom arc section and the vault arc section
Footpath；The arch bottom arc section is respectively with two smooth tangent connections of haunch arc section, and the vault arc section is respectively with two
The individual smooth tangent connection of the haunch arc section.
The present invention be applied to class rectangle shield tunnel tunnel segment structure, by it is described arch bottom arc section respectively with described in two
The smooth tangent connection of haunch arc section, the vault arc section with two smooth tangent connections of haunch arc section, have respectively
There is good arching effect, be advantageous to reduce the moment of flexure and eccentric throw suffered by lining segment, so as to reduce the amount of reinforcement of needs
And lining thickness, corresponding soil excavation amount, concrete amount are also less.Suporting structure tunneling boring cutting soil is also helped in addition
Body, the influence to surrounding enviroment are smaller.
The present invention be applied to class rectangle shield tunnel tunnel segment structure further improvement is that, the arch bottom arc section
Radius be equal to the vault arc section radius, it is described arch bottom arc section corresponding to circle respectively with two haunch arc sections
Corresponding circle inscribe connection, circle corresponding to the vault arc section respectively with two haunch arc sections corresponding to circle
Inscribe connects.
The present invention be applied to class rectangle shield tunnel tunnel segment structure further improvement is that, the arch bottom arc section
Radius be more than the vault arc section radius, it is described arch bottom arc section corresponding to circle respectively with two haunch arc sections
Corresponding circle inscribe connection, circle corresponding to the vault arc section respectively with two haunch arc sections corresponding to circle
Inscribe connects.
The present invention be applied to class rectangle shield tunnel tunnel segment structure further improvement is that, the arch bottom arc section
Radius be less than the vault arc section radius, it is described arch bottom arc section corresponding to circle respectively with two haunch arc sections
Corresponding circle inscribe connection, circle corresponding to the vault arc section respectively with two haunch arc sections corresponding to circle
Inscribe connects.
The present invention be applied to class rectangle shield tunnel tunnel segment structure further improvement is that, the arch bottom arc section
Radius is 10000mm~20000mm, and the radius of the vault arc section is 10000mm~20000mm, the haunch arc section
Radius be 2500mm~3000mm.
The present invention be applied to class rectangle shield tunnel tunnel segment structure further improvement is that, the tunnel segment structure is by more
Individual section of jurisdiction piecemeal is spliced.
The present invention be applied to class rectangle shield tunnel tunnel segment structure further improvement is that, in addition to middle standing pillar
Section, it is supported between the arch bottom arc section and the vault arc section, two haunch arc sections are relative to the centre
Pillar segment is arranged symmetrically.
Brief description of the drawings
Fig. 1 is the first the form of fracture schematic diagram for the tunnel segment structure that the present invention is applied to class rectangle shield tunnel.
Fig. 2 is the schematic diagram of the first form of fracture of the tunnel segment structure that the present invention is applied to class rectangle shield tunnel.
Fig. 3 is the schematic diagram of second of form of fracture of the tunnel segment structure that the present invention is applied to class rectangle shield tunnel.
Fig. 4 is the schematic diagram of the third form of fracture of the tunnel segment structure that the present invention is applied to class rectangle shield tunnel.
Fig. 5 is the preferable schematic diagram of the section of jurisdiction partitioned mode for the tunnel segment structure that the present invention is applied to class rectangle shield tunnel.
Fig. 6 is the preferable form of fracture schematic diagram for the tunnel segment structure that the present invention is applied to class rectangle shield tunnel.
Fig. 7 is the preferred construction schematic diagram for the tunnel segment structure that the present invention is applied to class rectangle shield tunnel.
Fig. 8 is the force analysis schematic diagram for the tunnel segment structure that the present invention is applied to class rectangle shield tunnel.
Fig. 9 is the structural representation of the existing tunnel segment structure suitable for rectangular shield.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
Coordinate referring to shown in Fig. 1, Fig. 1 is the first section for the tunnel segment structure that the present invention is applied to class rectangle shield tunnel
Form schematic diagram.The present invention is applied to the tunnel segment structure 1 of class rectangle shield tunnel, and the section of tunnel segment structure 1 is in class rectangle shape, pipe
Chip architecture 1 includes：Arch bottom arc section 10, the vault circular arc positioned at the section keystone positioned at section arch bottom position
Section 20 and two haunch arc sections 30 positioned at the section both sides haunch position；The radius phase of two haunch arc sections 30
Deng, and it is respectively less than the radius of arch bottom arc section 10 and the radius of vault arc section 20；Encircle bottom arc section 10 respectively with two to encircle
The smooth tangent connection of oval segmental arc 30, vault arc section 20 respectively with the smooth tangent connection of two haunch arc sections 30.
The present invention be applied to class rectangle shield tunnel tunnel segment structure, by it is described arch bottom arc section respectively with described in two
The smooth tangent connection of haunch arc section, the vault arc section with two smooth tangent connections of haunch arc section, have respectively
There is good arching effect, be advantageous to reduce the moment of flexure and eccentric throw suffered by lining segment, so as to reduce the amount of reinforcement of needs
And lining thickness, corresponding soil excavation amount, concrete amount are also less.Suporting structure tunneling boring cutting soil is also helped in addition
Body, the influence to surrounding enviroment are smaller.
As shown in fig.2, Fig. 2 is the first form of fracture for the tunnel segment structure that the present invention is applied to class rectangle shield tunnel
Schematic diagram.The radius for encircleing bottom arc section 10 is R1, the radius of vault arc section 20 is R2, the radius of two haunch arc sections 30
It is R3, in this embodiment, encircle the radius R of bottom arc section 101Equal to the radius R of vault arc section 202.Encircle bottom arc section 10
Corresponding circle is circle 110, and the circle corresponding to vault arc section 20 is circle 210, and the circle corresponding to haunch arc section 30 is circle
310.Circle 110 corresponding to arch bottom arc section 10 is connected with the inscribe of circle 310 corresponding to two haunch arc sections 30 respectively, vault
Circle 210 corresponding to arc section 20 is connected with the inscribe of circle 310 corresponding to two haunch arc sections 30 respectively.That is, bottom circular arc is encircleed
Section 10 is connected with two inscribes of haunch arc section 30 respectively, and vault arc section 20 connects with two inscribes of haunch arc section 30 respectively
Connect.Preferably, the radius R of bottom arc section 10 is encircleed1For 10000mm~20000mm, the radius R of vault arc section 202For 10000mm
~20000mm, the radius R of haunch arc section 303For 2500mm~3000mm.
As shown in fig.3, Fig. 3 is second of form of fracture of the tunnel segment structure that the present invention is applied to class rectangle shield tunnel
Schematic diagram.The radius for encircleing bottom arc section 10 is R1, the radius of vault arc section 20 is R2, the radius of two haunch arc sections 30
It is R3, in this embodiment, encircle the radius R of bottom arc section 101More than the radius R of vault arc section 202.Encircle bottom arc section 10
Corresponding circle is circle 110, and the circle corresponding to vault arc section 20 is circle 210, and the circle corresponding to haunch arc section 30 is circle
310.Circle 110 corresponding to arch bottom arc section 10 is connected with the inscribe of circle 310 corresponding to two haunch arc sections 30 respectively, vault
Circle 210 corresponding to arc section 20 is connected with the inscribe of circle 310 corresponding to two haunch arc sections 30 respectively.That is, bottom circular arc is encircleed
Section 10 is connected with two inscribes of haunch arc section 30 respectively, and vault arc section 20 connects with two inscribes of haunch arc section 30 respectively
Connect.Preferably, the radius R of bottom arc section 10 is encircleed1For 10000mm~20000mm, the radius R of vault arc section 202For 10000mm
~20000mm, the radius R of haunch arc section 303For 2500mm~3000mm.
As shown in fig.4, Fig. 4 is the third form of fracture for the tunnel segment structure that the present invention is applied to class rectangle shield tunnel
Schematic diagram.The radius for encircleing bottom arc section 10 is R1, the radius of vault arc section 20 is R2, the radius of two haunch arc sections 30
It is R3, in this embodiment, encircle the radius R of bottom arc section 101Less than the radius R of vault arc section 202.Encircle bottom arc section 10
Corresponding circle is circle 110, and the circle corresponding to vault arc section 20 is circle 210, and the circle corresponding to haunch arc section 30 is circle
310.Circle 110 corresponding to arch bottom arc section 10 is connected with the inscribe of circle 310 corresponding to two haunch arc sections 30 respectively, vault
Circle 210 corresponding to arc section 20 is connected with the inscribe of circle 310 corresponding to two haunch arc sections 30 respectively.That is, bottom circular arc is encircleed
Section 10 is connected with two inscribes of haunch arc section 30 respectively, and vault arc section 20 connects with two inscribes of haunch arc section 30 respectively
Connect.Preferably, the radius R of bottom arc section 10 is encircleed1For 10000mm~20000mm, the radius R of vault arc section 202For 10000mm
~20000mm, the radius R of haunch arc section 303For 2500mm~3000mm.
Further, after being determined that the present invention is applied to the form of fracture of the tunnel segment structure of class rectangle shield tunnel, this
Invention can be spliced suitable for the tunnel segment structure 1 of class rectangle shield tunnel by multiple section of jurisdiction piecemeals.As shown in fig.5, figure
5 be the preferable schematic diagram of the section of jurisdiction partitioned mode for the tunnel segment structure that the present invention is applied to class rectangle shield tunnel.Preferably divide at this
In block mode, whole tunnel segment structure is spliced by ten sections of section of jurisdiction piecemeal A1, A2, A3, A4, A5, A6, A7, A8, A9, A10.When
So, the present invention is not limited to that suitable for the partitioned mode of the tunnel segment structure of class rectangle shield tunnel, can also be by the present invention
Divided suitable for the tunnel segment structure of class rectangle shield tunnel according to other dividing modes, as long as the pipe after the completion of last splicing
The form of fracture of chip architecture meets the form of fracture of above-mentioned requirements, does not repeat one by one herein.
Refering to shown in Fig. 6 and Fig. 7, Fig. 6 is the preferable section for the tunnel segment structure that the present invention is applied to class rectangle shield tunnel
Form schematic diagram.Fig. 7 is the preferred construction schematic diagram for the tunnel segment structure that the present invention is applied to class rectangle shield tunnel.The present invention is suitable
Tunnel segment structure 1 for class rectangle shield tunnel also includes middle standing pillar section 40, is supported in arch bottom arc section 10 and vault circular arc
Between section 20, two haunch arc sections are arranged symmetrically relative to the middle standing pillar section, and middle standing pillar section 40 can make
Overall tunnel segment structure is more firm.Especially, the tunnel segment structure that the present invention is applied to class rectangle shield tunnel is preferably steel
Tendon concrete structure.
Refering to shown in Fig. 8 and Fig. 9, Fig. 8 is the force analysis for the tunnel segment structure that the present invention is applied to class rectangle shield tunnel
Schematic diagram.Fig. 9 is the structural representation of the existing tunnel segment structure suitable for rectangular shield.Class rectangle shield is applied to the present invention
The tunnel segment structure in structure tunnel and the existing tunnel segment structure suitable for rectangular shield, finite element analysis meter is carried out using η-ζ methods
Calculate, carry out same structural load force analysis, wherein, the structural load table of analysis see the table below 1, and Load Combination table see the table below 2,
Finally obtain comparative result as shown in table 3 below.
Table 1
Table 2
Table 3
It can be drawn from upper table 3, the tunnel segment structure for being applied to class rectangle shield tunnel using the present invention is (hereinafter referred to as square
Case 1) with being 1.5% using the ratio of reinforcement of the existing tunnel segment structure (hereinafter referred to as scheme 2) suitable for rectangular shield, it is full
The structural strength of sufficient shield tunnel.Therefore, the basis of shield tunnel functional requirement, track clearance and structural strength is being met
On, the moment of flexure size of every endless tube piece of scheme 1 will be significantly less than the moment of flexure size of every endless tube piece of scheme 2, therefore, the institute of scheme 1
The area of reinforcement, pipe-plate lining thickness and the concrete amount needed is both less than the area of reinforcement needed for scheme 2, pipe-plate lining thickness
And concrete amount, that is to say, that on the premise of identical structural strength is met, scheme 1 is compared to scheme 2, Ke Yijie
Amount of reinforcement and lining thickness are saved, corresponding soil excavation amount, concrete amount are also less, therefore scheme 1 is compared to scheme 2 more
Supernumerary segment about construction cost.
Described above is only presently preferred embodiments of the present invention, not does any formal limitation to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, in the range of technical solution of the present invention is not departed from, when the technology contents using the disclosure above make a little change or repair
The equivalent embodiment for equivalent variations is adornd, as long as being the content without departing from technical solution of the present invention, the technology according to the present invention is real
Any simple modification, equivalent change and modification that confrontation above example is made, still fall within the scope of technical solution of the present invention
It is interior.
Claims (6)
1. a kind of tunnel segment structure suitable for class rectangle shield tunnel, it is characterised in that the section of the tunnel segment structure is in class square
Shape, the tunnel segment structure include：Encircle bottom arc section, positioned at the section keystone positioned at section arch bottom position
Vault arc section and two haunch arc sections positioned at the section both sides haunch position；Two haunch arc sections
Radius is equal, and the radius of the radius of respectively less than described arch bottom arc section and the vault arc section；The arch bottom arc section
Radius be 10000mm~20000mm, the radius of the vault arc section is 10000mm~20000mm, the haunch circular arc
The radius of section is 2500mm~3000mm；It is described arch bottom arc section respectively with two smooth tangent connections of haunch arc section,
The vault arc section respectively with two smooth tangent connections of haunch arc section.
2. it is applied to the tunnel segment structure of class rectangle shield tunnel as claimed in claim 1, it is characterised in that the arch bottom circular arc
The radius of section is equal to the radius of the vault arc section, and the circle corresponding to the arch bottom arc section is justified with two haunches respectively
Circle inscribe connection corresponding to segmental arc, circle corresponding to the vault arc section respectively with two haunch arc sections corresponding to
Circle inscribe connection.
3. it is applied to the tunnel segment structure of class rectangle shield tunnel as claimed in claim 1, it is characterised in that the arch bottom circular arc
The radius of section is more than the radius of the vault arc section, and the circle corresponding to the arch bottom arc section is justified with two haunches respectively
Circle inscribe connection corresponding to segmental arc, circle corresponding to the vault arc section respectively with two haunch arc sections corresponding to
Circle inscribe connection.
4. it is applied to the tunnel segment structure of class rectangle shield tunnel as claimed in claim 1, it is characterised in that the arch bottom circular arc
The radius of section is less than the radius of the vault arc section, and the circle corresponding to the arch bottom arc section is justified with two haunches respectively
Circle inscribe connection corresponding to segmental arc, circle corresponding to the vault arc section respectively with two haunch arc sections corresponding to
Circle inscribe connection.
5. the tunnel segment structure suitable for class rectangle shield tunnel as any one of Claims 1-4, it is characterised in that
The tunnel segment structure is spliced by multiple section of jurisdiction piecemeals.
6. it is applied to the tunnel segment structure of class rectangle shield tunnel as claimed in claim 5, it is characterised in that also include middle vertical
Shell of column, it is supported between the arch bottom arc section and the vault arc section, two haunch arc sections are relative in described
Between pillar segment be arranged symmetrically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511018839.9A CN105507925B (en) | 2015-12-29 | 2015-12-29 | Suitable for the tunnel segment structure of class rectangle shield tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511018839.9A CN105507925B (en) | 2015-12-29 | 2015-12-29 | Suitable for the tunnel segment structure of class rectangle shield tunnel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105507925A CN105507925A (en) | 2016-04-20 |
| CN105507925B true CN105507925B (en) | 2018-02-23 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869166A (en) * | 2019-04-08 | 2019-06-11 | 宁波用躬科技有限公司 | A kind of class rectangle shield tunnel tunnel segment structure and its construction method |
| CN109989769A (en) * | 2019-04-08 | 2019-07-09 | 宁波大学 | A kind of class rectangle shield tunnel tunnel segment structure and construction method with temporary support |
| CN110017156A (en) * | 2019-04-11 | 2019-07-16 | 宁波大学 | Steel pipe chip architecture and its construction method suitable for class rectangle shield tunnel |
| CN110006641A (en) * | 2019-04-16 | 2019-07-12 | 宁波用躬科技有限公司 | Class rectangle shield duct piece horizontal pulling test loading device and loading method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3949036B2 (en) * | 2002-08-30 | 2007-07-25 | 株式会社クボタ | Tunnel structure |
| JP2005264477A (en) * | 2004-03-17 | 2005-09-29 | Tokyo Metro Co Ltd | Segment and construction method of tunnel |
| CN203362168U (en) * | 2013-06-06 | 2013-12-25 | 日立造船株式会社 | Shield tunneling machine |
| CN103306685A (en) * | 2013-06-24 | 2013-09-18 | 上海市城市建设设计研究总院 | Shield segment structure and shield tunnel |
| CN204511457U (en) * | 2015-01-25 | 2015-07-29 | 上海市隧道工程轨道交通设计研究院 | Class oval top tube method tube coupling |
| CN204646250U (en) * | 2015-04-16 | 2015-09-16 | 中铁隧道勘测设计院有限公司 | The liner structure in the two rectangular shield tunnel, hole of a kind of single tube |
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