CN105673042A - Integrated grounding system of reinforced concrete segment tunnel - Google Patents
Integrated grounding system of reinforced concrete segment tunnel Download PDFInfo
- Publication number
- CN105673042A CN105673042A CN201610191718.2A CN201610191718A CN105673042A CN 105673042 A CN105673042 A CN 105673042A CN 201610191718 A CN201610191718 A CN 201610191718A CN 105673042 A CN105673042 A CN 105673042A
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- CN
- China
- Prior art keywords
- reinforced concrete
- concrete segment
- integrated
- tunnel
- grounding
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
Abstract
The invention belongs to the technical field of integrated grounding systems of tunnels, in particular relates to an integrated grounding system of a reinforced concrete segment assembled and lined tunnel, mainly aims at overcoming the defects of the prior art, and provides integrated grounding system and measure with reliable grounding performance and long service life for the reinforced concrete segment assembled and lined tunnel. The integrated grounding system has the scheme that bridge and tunnel type grounding terminals are embedded in the positions of two ends inside the reinforced concrete segments and are welded with inside main reinforcing bars of the segments, the connecting thread end of each grounding terminal is sunk in an intrados of each segment; when the segments are assembled into a ring, the grounding terminals of different segments in the same segment ring are connected together by a connecting wire, and the grounding terminals of the segments in the adjacent segment rings are connected together by a connecting wire. The invention provides effective integrated grounding system and measure for the reinforced concrete segment assembled and lined tunnel, and the integrated grounding system is simple, safe and reliable in construction operation.
Description
Technical field
The invention belongs to integrated ground systems technology field, tunnel; It is specifically related to: the integrated ground system of a kind of reinforced concrete segment assembly trimmed tunnel.
Background technology
In subterranean tunnel; integrated ground system be exactly by traction power supply return system along draught line in hole, power supply system, signaling system, communication and other electronic informations, etc. need the device of ground connection; by the earthed system that Through ground wire is connected; simultaneously work as thunder-lightning, Antijamming protecting effect.
Currently for the tunnel of tunneling cast-in-place concrete lining cutting, effective integrated ground measure and specification are defined. But for the tunnel of reinforced concrete segment assembly lining cutting, especially high ferro tunnel, but without concrete integrated ground system and measure, face the technical problem of integrated ground.
Reinforced concrete segment is the precast concrete part containing built-in bar-mat reinforcement, and neighboring reinforcing bar is protected by the concrete cover of specific thickness, and reinforcing bar does not expose, and for assembled looped reinforced concrete segment, has a degree of insulating properties each other. For the tunnel of reinforced concrete segment assembly lining cutting, suitable integrated ground system should be studied.
Patent CN204126653U integrated ground shield lining circular ring structure, has the disadvantage that and adopts the soil side of meeting at reinforced concrete segment to be respectively welded bar shaped or square steel plate with back of the body soil side, the rust resistance and corrosion resistance of steel plate not easily realizes; The welding operation of steel plate is complicated, it is easy to affect that section of jurisdiction is concrete builds. The measure that article open cut in periodical " railway communication signal " (volume the 10th phase October the 45th in 2009), shield tunnel integrated ground are researched and proposed, the screw thread having the disadvantage that section of jurisdiction swivel nut is special thread, adopting steel swivel nut to add difficulty of processing, the rust resistance and corrosion resistance of steel swivel nut not easily realizes; Segment bolt is high-strength bolt, utilizes segment bolt to carry out ground connection impact and manages bolted reliability;For not adopting the section of jurisdiction ring of connecting bolt, this method cannot realize.
Summary of the invention
It is an object of the invention to: for overcoming the deficiencies in the prior art, for the tunnel of reinforced concrete segment assembly lining cutting, it is provided that a kind of ground connection dependable performance, the integrated ground system of high life and measure. Normal operation for tunnel provides reliable safety guarantee.
The technical scheme is that
At the inner side two-end part of reinforced concrete segment, pre-buried bridge tunnel type ground terminal, together with ground terminal muscle welding main with the inner side of section of jurisdiction. The end of thread that connects of ground terminal is trapped in the intrados of section of jurisdiction, and the screw thread of ground terminal exposes. After pipe sheet assembling cyclization, in same endless tube sheet, with connecting line, the ground terminal of different sections of jurisdiction is connected. Section of jurisdiction ground terminal connecting line in adjacent tubes loop is connected. Contact net pedestal etc. needs the position of ground connection, it is also possible to be connected to the ground terminal of neighbouring section of jurisdiction with connecting line. Section of jurisdiction ring connecting line and earthed system are connected.
The invention has the beneficial effects as follows:
Tunnel for reinforced concrete segment assembly lining cutting, it is provided that a kind of effective integrated ground system and measure. Do not increase the production cost of reinforced concrete segment. The constructing operation of integrated ground system is simple. Safe and reliable.
Accompanying drawing explanation
Fig. 1 is the principle schematic of reinforced concrete segment tunnel integrated ground system.
Fig. 2 is the inner side cambered surface schematic diagram of reinforced concrete segment.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is ground terminal schematic diagram.
In figure: 1 section of jurisdiction ring, 101 sections of jurisdiction, 102 ground terminals, main muscle inside 103,104 section of jurisdiction intrados, 2 connecting line A, 3 earthed systems, 301 bar-mat reinforcements chassis ground, 302 longitudinal ground rebars, 303 Through ground wires, 4 connecting line B, 5 contact net pedestals.
Detailed description of the invention
It is described in detail below in conjunction with accompanying drawing 1 to 4.
The reinforced concrete segment tunnel integrated ground system of the present invention, specifically includes that section of jurisdiction ring 1, connecting line A, earthed system 3, connecting line B, contact net pedestal 5.
Section of jurisdiction ring 1 is circularized structure by different section of jurisdiction 101 assembling combination, forms the annular supporting structure in tunnel. Between each section of jurisdiction of endless tube loop 1, according to design, have with bolts, also have not with bolts. According to different structure shape and different assembled positions, section of jurisdiction 101 is divided into different models.
Reinforced concrete segment 101, is the precast concrete part containing built-in bar-mat reinforcement. The periphery reinforcing bar of section of jurisdiction 101 is protected by the concrete cover of specific thickness, and reinforcing bar does not expose. For assembled looped reinforced concrete segment, each section of jurisdiction has a degree of insulating properties each other. There is the main muscle 103 in some inner sides section of jurisdiction 101.
Ground terminal 102 is bridge tunnel type ground terminal. Ground terminal 102 is embedded in the two-end part inside section of jurisdiction 101.
Before segment prefabricated casting concrete, together with main to the tail end of ground terminal 102 and inner side muscle 103 welds, and stable at design attitude so that it is will not move when concrete perfusion, then casting concrete.
After tunnel segment demoulding, the end of thread that connects of ground terminal 102 is trapped in inside the intrados 104 of section of jurisdiction, and the screw thread of ground terminal 102 exposes.
By Zhu Jin 103 UNICOM between the ground terminal 102 of single section of jurisdiction 101.
In same endless tube sheet, with connecting line A2, the ground terminal of different sections of jurisdiction is connected.
In adjacent tubes loop, with connecting line A2, the section of jurisdiction ground terminal in adjacent section of jurisdiction is connected.
The pedestal of contact net pedestal 5 etc. other need the position of ground connection, it is possible to be connected to the ground terminal of neighbouring section of jurisdiction with connecting line A2.
With connecting line B4, the grounded circuit of section of jurisdiction ring 1 and earthed system 3 being connected, junction point presses design code location arrangements.
Section of jurisdiction ring 1 is provided with the pedestal of contact net 5.
Between connecting line A and ground terminal with bolts.
Earthed system 3 is conventional earthed system, is mainly made up of net 301 chassis ground, ground rebar 302, Through ground wire 303, ground terminal, connecting line etc.
The invention provides a kind of effective integrated ground system and measure. Do not increase the production cost of reinforced concrete segment. The constructing operation of integrated ground system is simple. Safe and reliable. Normal operation for tunnel provides reliable safety guarantee.
Claims (4)
1. a reinforced concrete segment tunnel integrated ground system, mainly include section of jurisdiction ring, connecting line A, earthed system, connecting line B, it is characterised by: described section of jurisdiction ring is in the ring type structure closed and is mutually spliced by multiple reinforced concrete segments, it is provided with ground terminal at the two ends, inner side of each reinforced concrete segment, and be connected by connecting line A between ground terminal, being connected with each other also through connecting line A on ground terminal between adjacent reinforced concrete segment, section of jurisdiction ring is connected with earthed system by connecting line B.
2. reinforced concrete segment tunnel according to claim 1 integrated ground system, it is characterized in that: the ground terminal at the two ends, inner side of reinforced concrete segment is pre-buried bridge tunnel type ground terminal, the main muscle in inner side being internally provided with the main muscle in inner side and ground terminal and reinforced concrete segment at reinforced concrete segment is welded to connect.
3. a kind of reinforced concrete segment tunnel according to claim 1 integrated ground system, it is characterised in that: on reinforced concrete segment ring, it is provided with contact net pedestal.
4. a kind of reinforced concrete segment tunnel according to claim 1 integrated ground system, it is characterised in that: all with bolts between described connecting line A and ground terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610191718.2A CN105673042A (en) | 2016-03-30 | 2016-03-30 | Integrated grounding system of reinforced concrete segment tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610191718.2A CN105673042A (en) | 2016-03-30 | 2016-03-30 | Integrated grounding system of reinforced concrete segment tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105673042A true CN105673042A (en) | 2016-06-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610191718.2A Pending CN105673042A (en) | 2016-03-30 | 2016-03-30 | Integrated grounding system of reinforced concrete segment tunnel |
Country Status (1)
| Country | Link |
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| CN (1) | CN105673042A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677799A (en) * | 2016-12-30 | 2017-05-17 | 中铁工程装备集团有限公司 | Assembly type segment lining structure of large-section horseshoe tunnel |
| CN111520151A (en) * | 2020-05-13 | 2020-08-11 | 中国电力工程顾问集团华东电力设计院有限公司 | Grounding method and grounding system for GIL electric shield pipe gallery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008186748A (en) * | 2007-01-31 | 2008-08-14 | Tokyo Electric Power Co Inc:The | Grounding structure and grounding method for concrete structure in ground |
| CN204126653U (en) * | 2014-08-27 | 2015-01-28 | 中国电建集团华东勘测设计研究院有限公司 | A kind of integrated ground shield lining circular ring structure |
| CN104453937A (en) * | 2014-12-12 | 2015-03-25 | 中铁十九局集团有限公司 | Pre-embedding device and method of tunnel vault ground terminals |
| CN104500092A (en) * | 2014-12-12 | 2015-04-08 | 中铁十九局集团有限公司 | Tunnel vault grounding terminal leaking bury implantation structure and implantation method thereof |
| CN205532624U (en) * | 2016-03-30 | 2016-08-31 | 中铁工程装备集团有限公司 | Ground system is synthesized in reinforced concrete pipe piece tunnel |
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2016
- 2016-03-30 CN CN201610191718.2A patent/CN105673042A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008186748A (en) * | 2007-01-31 | 2008-08-14 | Tokyo Electric Power Co Inc:The | Grounding structure and grounding method for concrete structure in ground |
| CN204126653U (en) * | 2014-08-27 | 2015-01-28 | 中国电建集团华东勘测设计研究院有限公司 | A kind of integrated ground shield lining circular ring structure |
| CN104453937A (en) * | 2014-12-12 | 2015-03-25 | 中铁十九局集团有限公司 | Pre-embedding device and method of tunnel vault ground terminals |
| CN104500092A (en) * | 2014-12-12 | 2015-04-08 | 中铁十九局集团有限公司 | Tunnel vault grounding terminal leaking bury implantation structure and implantation method thereof |
| CN205532624U (en) * | 2016-03-30 | 2016-08-31 | 中铁工程装备集团有限公司 | Ground system is synthesized in reinforced concrete pipe piece tunnel |
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| 刘晓丽: "CRTSIII型板式无砟轨道结构及造价分析", 《铁路工程造价管理》 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677799A (en) * | 2016-12-30 | 2017-05-17 | 中铁工程装备集团有限公司 | Assembly type segment lining structure of large-section horseshoe tunnel |
| CN106677799B (en) * | 2016-12-30 | 2018-02-02 | 中铁工程装备集团有限公司 | The assembling pipe-plate lining structure of big cross section horse-shoe tunnel |
| CN111520151A (en) * | 2020-05-13 | 2020-08-11 | 中国电力工程顾问集团华东电力设计院有限公司 | Grounding method and grounding system for GIL electric shield pipe gallery |
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Application publication date: 20160615 |
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