CN209430206U - Form duct pieces of shield tunnel - Google Patents
Form duct pieces of shield tunnel Download PDFInfo
- Publication number
- CN209430206U CN209430206U CN201822086188.2U CN201822086188U CN209430206U CN 209430206 U CN209430206 U CN 209430206U CN 201822086188 U CN201822086188 U CN 201822086188U CN 209430206 U CN209430206 U CN 209430206U
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- Prior art keywords
- jurisdiction
- section
- pressure sensor
- shield tunnel
- duct pieces
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- Force Measurement Appropriate To Specific Purposes (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses a kind of molding duct pieces of shield tunnel, including section of jurisdiction ontology, section of jurisdiction ontology is intersected the ring structure that is formed by connecting by several endless tube pieces, and section of jurisdiction is arcuate structure, is provided with injected hole in the cambered surface of section of jurisdiction；It is provided with mounting hole on section of jurisdiction, pressure sensor, steel collar and foam block is disposed with by top to bottom in mounting hole, conducting wire approaching channel is set to intrados at the core model of pressure sensor, is provided with foil gauge on the lateral surface of steel collar；A pressure sensor is provided on the extrados of section of jurisdiction.The utility model provides a kind of molding duct pieces of shield tunnel, simple and practical, can analyze tunnel duct piece radial force to the influence degree of tunnel deformation.
Description
Technical field
The utility model relates to shield tunnel construction technology fields, more particularly, to a kind of molding duct pieces of shield tunnel.
Background technique
Shield-tunneling construction has become the main construction method of urban track traffic, forms the stress of duct pieces of shield tunnel only
There are theoretical calculation, laboratory simulation detection, has no the actual measurement case of section of jurisdiction stress.During shield driving, tunnel is formed
In rich groundwater, synchronous grouting amount deficiency or under other external forces, section of jurisdiction generates the change of faulting of slab ends deformation and external force for section of jurisdiction
Change relationship is only limited theoretical modeling and calculates research, without Practical Project experimental study and summary.During shield-tunneling construction
Influence of the variation of shield thrust to section of jurisdiction faulting of slab ends, when molding shield tunnel is floated by external force, buoyancy is to section of jurisdiction
Faulting of slab ends, bolt strained influence degree have no always actual tests test result.
In view of the foregoing, provide a kind of molding duct pieces of shield tunnel be it is necessary, which simultaneously can be contentedly
Water And Earth Pressures generate the requirement that buoyancy generates to section of jurisdiction in layer.
Utility model content
The purpose of the utility model is to provide a kind of molding duct pieces of shield tunnel, provide test method, simple and practical, energy
Tunnel duct piece radial force is enough analyzed to the influence degree of tunnel deformation.
To achieve the above object, the utility model provides a kind of molding duct pieces of shield tunnel, including section of jurisdiction ontology, described
Section of jurisdiction ontology is intersected the ring structure that is formed by connecting by several endless tube pieces, and the section of jurisdiction is arcuate structure, the arc of the section of jurisdiction
Injected hole is provided on face；
Be provided with mounting hole on the section of jurisdiction, in the mounting hole by top to bottom be disposed with pressure sensor,
Steel collar and foam block, the foam block are connect with the steel collar, and the steel collar is connect with the pressure sensor, described
Conducting wire approaching channel is set to intrados at the core model of pressure sensor, is provided with foil gauge on the lateral surface of the steel collar；
Several the first bolts hole are provided on the anchor ring of the section of jurisdiction, between every two adjacent first bolt hole
There are two pressure sensor, the distance between two described pressure sensors are 10-12cm for setting；
Several the second bolts hole are provided on the end face of the section of jurisdiction, between every two adjacent second bolt hole
There are two pressure sensor, the distance between two described pressure sensors are 10-12cm for setting；
A pressure sensor is provided on the extrados of the section of jurisdiction.
Preferably, the camber line distance between the pressure sensor on the section of jurisdiction anchor ring and adjacent first bolt hole
For 30cm.
Preferably, the foam block is set as hollow cylindrical structure, and be provided on the inner wall of the foam block with
The adaptable groove of the foil gauge.
Preferably, the steel collar is set as hollow cylindrical structure, and the internal diameter of the steel collar and the pressure pass
The diameter of sensor is consistent.
Preferably, the depth of the mounting hole is 15mm.
A kind of forces testing method forming duct pieces of shield tunnel, comprising the following steps:
A, in the factory of section of jurisdiction, section of jurisdiction simulation assembling is finished, it is every after the assay was approved, according to experimental design space ruler
It is very little, the position of pre-reservation pressure sensor is determined on the anchor ring of section of jurisdiction, end face and extrados, is marked, each pressure sensing
Conducting wire approaching channel is reserved to intrados at the core model of device；
B, the mounting hole of installation pressure sensor, section of jurisdiction outer arc are set on the end face of every endless tube piece, anchor ring and extrados
The position of face upper installing hole is located at injected hole, is sealed processing to the mounting hole；
C, installing pipe piece anchor ring and the pressure sensor of end face, the pressure sensor of every endless tube on piece is mounted on is dug with shield
Into on the left side on the basis of direction, every endless tube on piece is installed two pressure and is passed on the preceding anchor ring on the basis of shield driving direction
Pressure sensor on the extrados of section of jurisdiction is mounted at injected hole by sensor, and conducting wire is drawn and is connect with testing equipment；
D, the section of jurisdiction for installing pressure sensor is transported to scene, shield is normally tunneled, sighting tube piece end face, anchor ring and outer
Pressure sensor data situation of change in cambered surface adjusts different zones propelling cylinder pressure value, observation pressure according to the actual situation
Force sensor data situation of change；
E, after shield tunnel molding, at interval of a month segment deformation of test and suffered external force changing value, in tunnel
Section of jurisdiction is tested when can select in the operation phase by outer force data；
F, analysis and summary data summarize different time sections section of jurisdiction by the relationship of external force and segment deformation.
Preferably, the pressure sensor of the section of jurisdiction end face is set as two.
Preferably, conducting wire fairlead of the injected hole in test as pressure sensor.
Therefore, the molding duct pieces of shield tunnel of the utility model using the above structure, provides test method, simple real
With tunnel duct piece radial force can be analyzed to the influence degree of tunnel deformation.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram for forming duct pieces of shield tunnel of the utility model；
Fig. 2 is a kind of annuli arrangement schematic diagram for forming duct pieces of shield tunnel of the utility model；
Fig. 3 is a kind of end structure illustration for forming duct pieces of shield tunnel of the utility model；
Fig. 4 is a kind of overall structure diagram for forming duct pieces of shield tunnel of the utility model.
Specific embodiment
Embodiment
Fig. 1 be the utility model it is a kind of form duct pieces of shield tunnel structural schematic diagram, Fig. 2 be the utility model it is a kind of at
The annuli arrangement schematic diagram of type duct pieces of shield tunnel, Fig. 3 are a kind of end face structure for forming duct pieces of shield tunnel of the utility model
Schematic diagram, Fig. 4 are a kind of overall structure diagram for forming duct pieces of shield tunnel of the utility model.As shown, this is practical new
Type provides a kind of molding duct pieces of shield tunnel, including section of jurisdiction ontology, and the section of jurisdiction ontology is by several 1 companies of intersecting of endless tube piece
It connects into ring structure, section of jurisdiction 1 is arcuate structure, is provided with injected hole 2 in the cambered surface of section of jurisdiction 1；Mounting hole is provided on section of jurisdiction 1
3, the depth of mounting hole 3 is 15mm, is disposed with pressure sensor 4, steel collar 5 by top to bottom in mounting hole 3 and steeps
Foam block 6, foam block 6 are connect with steel collar 5, and steel collar 5 is connect with pressure sensor 4, to inner arc at the core model of pressure sensor 4
Conducting wire approaching channel 7 is arranged in face, is provided with foil gauge 8 on the lateral surface of steel collar 5；Be provided on the anchor ring of section of jurisdiction 1 several first
Bolt hole 9, setting is there are two pressure sensor 4 between every two adjacent first bolt hole 9, between two pressure sensors 4
Distance be 10-12cm；Several the second bolts hole 10, every two adjacent second bolt hole are provided on the end face of section of jurisdiction 1
There are two pressure sensor 4, the distance between two pressure sensors 4 are 10-12cm for setting between 10；The extrados of section of jurisdiction 1
On be provided with a pressure sensor 4.
Camber line distance between pressure sensor 4 and the first adjacent bolt hole 9 on 1 anchor ring of section of jurisdiction is 30cm.
Foam block 6 is set as hollow cylindrical structure, and is provided on the inner wall of foam block 6 and is adapted with foil gauge 8
Groove, steel collar 5 is set as hollow cylindrical structure, and the internal diameter of steel collar 5 is consistent with the diameter of pressure sensor 4.
A kind of forces testing method forming duct pieces of shield tunnel, comprising the following steps:
A, in the factory of section of jurisdiction, section of jurisdiction simulation assembling is finished, it is every after the assay was approved, according to experimental design space ruler
It is very little, the position of pre-reservation pressure sensor is determined on the anchor ring of section of jurisdiction, end face and extrados, is marked, each pressure sensing
Conducting wire approaching channel is reserved to intrados at the core model of device；
B, the mounting hole of installation pressure sensor, section of jurisdiction outer arc are set on the end face of every endless tube piece, anchor ring and extrados
The position of face upper installing hole is located at injected hole, is sealed processing to the mounting hole；
C, installing pipe piece anchor ring and the pressure sensor of end face, the pressure sensor of every endless tube on piece is mounted on is dug with shield
Into on the left side on the basis of direction, every endless tube on piece is installed two pressure and is passed on the preceding anchor ring on the basis of shield driving direction
Pressure sensor on the extrados of section of jurisdiction is mounted at injected hole by sensor, and conducting wire is drawn and is connect with testing equipment；
D, the section of jurisdiction for installing pressure sensor is transported to scene, shield is normally tunneled, sighting tube piece end face, anchor ring and outer
Pressure sensor data situation of change in cambered surface adjusts different zones propelling cylinder pressure value, observation pressure according to the actual situation
Force sensor data situation of change；
E, after shield tunnel molding, at interval of a month segment deformation of test and suffered external force changing value, in tunnel
Section of jurisdiction is tested when can select in the operation phase by outer force data；
F, analysis and summary data summarize different time sections section of jurisdiction by the relationship of external force and segment deformation.
Further, the pressure sensor of the section of jurisdiction end face is set as two.
Further, conducting wire fairlead of the injected hole in test as pressure sensor.
Therefore, the molding duct pieces of shield tunnel of the utility model using the above structure, provides test method, simple real
With tunnel duct piece radial force can be analyzed to the influence degree of tunnel deformation.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model rather than limit it
System, although the utility model has been described in detail with reference to the preferred embodiment, those skilled in the art should manage
Solution: it still can be with the technical solution of the present invention is modified or equivalently replaced, and these are modified or equally replace
Changing also cannot make modified technical solution be detached from the spirit and scope of the technical scheme of the present invention.
Claims (5)
1. a kind of molding duct pieces of shield tunnel, including section of jurisdiction ontology, it is characterised in that:
The section of jurisdiction ontology is intersected the ring structure that is formed by connecting by several endless tube pieces, and the section of jurisdiction is arcuate structure, described
Injected hole is provided in the cambered surface of section of jurisdiction；
Mounting hole is provided on the section of jurisdiction, the mounting hole is interior to be disposed with pressure sensor, steel bushing by top to bottom
Ring and foam block, the foam block are connect with the steel collar, and the steel collar is connect with the pressure sensor, the pressure
Conducting wire approaching channel is set to intrados at the core model of sensor, is provided with foil gauge on the lateral surface of the steel collar；
It is provided with several the first bolts hole on the anchor ring of the section of jurisdiction, is arranged between every two adjacent first bolt hole
There are two pressure sensor, the distance between two described pressure sensors are 10-12cm；
It is provided with several the second bolts hole on the end face of the section of jurisdiction, is arranged between every two adjacent second bolt hole
There are two pressure sensor, the distance between two described pressure sensors are 10-12cm；
A pressure sensor is provided on the extrados of the section of jurisdiction.
2. molding duct pieces of shield tunnel according to claim 1, it is characterised in that: the pressure sensing on the section of jurisdiction anchor ring
Camber line distance between device and adjacent first bolt hole is 30cm.
3. molding duct pieces of shield tunnel according to claim 2, it is characterised in that: the foam block is set as hollow circle
Column construction, and the groove being adapted with the foil gauge is provided on the inner wall of the foam block.
4. molding duct pieces of shield tunnel according to claim 3, it is characterised in that: the steel collar is set as hollow circle
Column construction, the internal diameter of the steel collar are consistent with the diameter of the pressure sensor.
5. molding duct pieces of shield tunnel according to claim 4, it is characterised in that: the depth of the mounting hole is 15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822086188.2U CN209430206U (en) | 2018-12-12 | 2018-12-12 | Form duct pieces of shield tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822086188.2U CN209430206U (en) | 2018-12-12 | 2018-12-12 | Form duct pieces of shield tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209430206U true CN209430206U (en) | 2019-09-24 |
Family
ID=67971526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822086188.2U Active CN209430206U (en) | 2018-12-12 | 2018-12-12 | Form duct pieces of shield tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209430206U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488331A (en) * | 2018-12-12 | 2019-03-19 | 中铁十八局集团有限公司 | Form duct pieces of shield tunnel and its forces testing method |
| CN115898455A (en) * | 2022-11-17 | 2023-04-04 | 深圳大学 | Variable cross-section connecting node segment of shield tunnel and assembling method thereof |
-
2018
- 2018-12-12 CN CN201822086188.2U patent/CN209430206U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488331A (en) * | 2018-12-12 | 2019-03-19 | 中铁十八局集团有限公司 | Form duct pieces of shield tunnel and its forces testing method |
| CN109488331B (en) * | 2018-12-12 | 2024-06-25 | 中铁十八局集团有限公司 | Molded shield tunnel segment and stress test method thereof |
| CN115898455A (en) * | 2022-11-17 | 2023-04-04 | 深圳大学 | Variable cross-section connecting node segment of shield tunnel and assembling method thereof |
| CN115898455B (en) * | 2022-11-17 | 2024-05-28 | 深圳大学 | Variable-section connecting node segment of shield tunnel and assembly method thereof |
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