CN203519608U - Carbonization test unit for prototype duct piece of shield tunnel - Google Patents
Carbonization test unit for prototype duct piece of shield tunnel Download PDFInfo
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- CN203519608U CN203519608U CN201320664571.6U CN201320664571U CN203519608U CN 203519608 U CN203519608 U CN 203519608U CN 201320664571 U CN201320664571 U CN 201320664571U CN 203519608 U CN203519608 U CN 203519608U
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- shield tunnel
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Abstract
The utility model discloses a carbonization test unit for a prototype duct piece of a shield tunnel. The test unit is mainly characterized in that a track plate is paved on a track base, two tracks used for transporting duct pieces are longitudinally arranged on the track plate, and a track stull is arranged between the two tracks; the track base and the left part of the track plate are covered below a rectangular test box cover; a box cover door is arranged in the right side of the test box cover; the track is composed by connecting two sections via bolts, and the connection part is located near the box cover door in the test box cover; wheels of a flat trolley are matched with the tracks; the right end of the flat trolley is connected with a pulling rope; after bypassing a rotating shaft of a motor of the track plate and a reverse wheel on the left end of the tracks, the other end of the pulling rope is connected with the left end of the flat trolley. By adopting the test unit, carbonization test can be carried out on the prototype duct piece of the shield tunnel under the conditions of controllable temperature, humidity and carbon dioxide concentration; the test operation is simple and convenient; the test result is more accurate and reliable; meanwhile, the manufacturing cost of the test unit is low, and the service life of the test unit is long.
Description
Technical field
The utility model relates to a kind of shield tunnel prototype section of jurisdiction carbonizing plant.
Background technology
Reinforced concrete structure is the version extensively adopting in China's architecture industry, and concrete carbonization refers to airborne sour gas CO
2react with the alkaline matter in concrete, make the neutralisation course of reaction that concrete alkalescence declines and chemistry of concrete composition changes.When neutralization depth meets or exceeds critical depth, will destroy the passivating film of rebar surface in protective seam; Thereupon, under the acting in conjunction of water and air, reinforcing bar just there will be corrosion; The volumetric expansion that corrosion produces will cause reinforcing bar to occur along its length longitudinal crack, and protective seam is peeled off, and then make that member section reduces, load-bearing capacity reduces, and cause the most at last structural elements damaged or lost efficacy.
Concrete carbonation test can be found out concrete proportioning, adjuvant, temperature, humidity, CO
2the relation of the factors such as concentration and carbonization, thus for the design and construction of reinforced concrete works provides test basis, avoid or reduce the harm of carbonization to reinforced concrete structure.
At present the test method of concrete carbonization is mainly contained to true environment test method(s) and artificial environment test method(s).True environment test method(s) can reflect the performance degradation rule of member in true environment, but the cycle is longer.Artificial environment test method(s) mainly adopts standard carbonization casing, small-sized carbonization case and phytotron: standard carbonization case, because box sizes limits, can only carry out the test of standard specimen.Small-sized carbonization case, due to the increase of structure headroom, can carry out other carbonization test of member level.The volume of phytotron is large, can carry out the carbonization test of large-scale component, but its insulation, impermeability be difficult for to guarantee, humidity, temperature and CO
2the homogeneity difference of concentration is large, and accuracy, the reliability of test findings have much room for improvement.
Along with China's sub. and large-scale in the ascendant across river sea tunnel construction, the long-term safety problem of the version that it mainly adopts---shield tunnel segment lining highlights day by day.And there is no at present, can carry out to prototype duct pieces of shield tunnel the device of carbonization test.
Utility model content
Utility model object of the present utility model is to provide a kind of shield tunnel prototype section of jurisdiction carbonization test equipment, and this testing equipment can carry out the carbonization test under controllable temperature, humidity, gas concentration lwevel condition to shield tunnel prototype section of jurisdiction; Its test operation is simple, convenient, and test findings more accurately, reliably.And the low cost of manufacture of testing equipment, long service life.
It is that a kind of shield tunnel prototype section of jurisdiction carbonization test equipment, is characterized in that the utility model is realized the technical scheme that its goal of the invention adopts:
In rail bed, lay track plates, on track plates, be provided with two tracks longitudinally, between two tracks, be provided with horizontal track stull;
Described rail bed and the left part of track plates cover under rectangular chamber cover; The case cover door of chamber cover is arranged on right side, and described track is comprised of two joints, between two joints, is bolted, and its junction is positioned at chamber cover near the position of case cover door;
The wheel of flat bogie coordinates with described track, and the right-hand member of flat bogie is connected with traction rope, and the other end of traction rope is connected with the left end of flat bogie after walking around the rotating shaft of motor of track plates right part and the reverse wheel of track left end;
Blower fan, temperature sensor, humidity sensor and CO are installed on the inwall of chamber cover
2concentration sensor; On chamber cover, be also provided with and CO
2the CO that generator is connected
2draft tube, the air-conditioner pipe being connected with cooling and warming compressor, the humidifier tube being connected with humidifier; Described cooling and warming compressor, humidifier and CO
2generator, blower fan, temperature sensor, humidity sensor and CO
2concentration sensor is all connected with central control unit.
The course of work of the present utility model and principle are:
Shield tunnel prototype section of jurisdiction to be tested is placed on the flat bogie of track right part, opens the case cover door of chamber cover, starter motor by traction rope by flat bogie and on shield tunnel prototype section of jurisdiction be moved to the left and finally push in chamber cover; Motor stopping, and the bolt of track bolt junction is taken off, is taken away the track of chamber cover outside, then the case cover door of chamber cover is shut.Now, shield tunnel prototype section of jurisdiction is in the inner space of chamber cover in sealing; Central control unit is by temperature sensor, humidity sensor and CO
2the detection signal transmitting of concentration sensor, to cooling and warming compressor, humidifier and CO
2generator room carries out FEEDBACK CONTROL, makes temperature, humidity and the CO of chamber cover inside
2concentration remains under the condition of setting, and opens blower fan and make in tryoff cover test condition everywhere keep uniformity.Reach after the test period of regulation, case cover door is opened, again the track in the track of pulling down and case cover is connected, starter motor reversion, flat bogie transports chamber cover by shield tunnel prototype section of jurisdiction, again the shield tunnel prototype section of jurisdiction after test is analyzed, tested, can draw concrete proportioning, adjuvant and temperature, humidity, CO
2the affect relation of the factors such as concentration on the section of jurisdiction carbonization of shield tunnel prototype, thus for the design and construction of reinforced concrete works provides test basis, avoid or reduce the harm of carbonization to reinforced concrete structure.
Compared with prior art, technological achievement of the present utility model is:
One, the Orbital Transport Systems that base, track plates, track and flat bogie thereof form can transport the large-scale shield tunnel prototype tunnel segment structure of more than ten tons of weighing.Open case cover door, connect that inside and outside two joint tracks just can be sent into shield tunnel prototype section of jurisdiction easily, push out test case cover; In prototype section of jurisdiction, send into after chamber cover, acromere track is pulled down, can close case cover door, case cover door and chamber cover are covered on track plates preferably and form seal cavity, can carry out controlled humidity, temperature and CO
2the section of jurisdiction carbonization test of concentration environment.Thereby greatly reduce intensity and the difficulty of test operation, make test operation become simply, facilitate.
Two, the use of the transportation system of removable track, makes the inner space of chamber cover in the situation that meeting Air Flow, is slightly greater than shield tunnel prototype section of jurisdiction.Than existing artificial or crane, transport, the volume of chamber cover obviously dwindles, and has both reduced the cost of manufacture of case cover, and its insulation, impermeability are good, and experimentation cost is also lower, humidity, temperature and CO
2the homogeneity of concentration is better, and test findings more accurately, reliably.
While three, testing, by track and the rail bed of bottom, bear gravity load, chamber cover only seals, and the separate type that this load-bearing, sealing are separated, can guarantee the load-bearing capacity of bottom half and the sealing of case cover; Can make again the not bearing load effect of case cover, extend the serviceable life of case cover, also greatly reduce the manufacturing cost of case cover.
Below in conjunction with specific embodiments and the drawings, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the utility model embodiment.
Fig. 2 is the plan structure schematic diagram for the utility model embodiment.
Fig. 3 is the A-A sectional view of Fig. 1.
Fig. 4 is the circuit theory schematic diagram of the utility model embodiment.
Embodiment
Embodiment
Fig. 1-3 illustrate, and a kind of embodiment of the present utility model is, a kind of shield tunnel prototype section of jurisdiction carbonization test equipment, and its composition is:
In rail bed 1, lay track plates 2, on track plates 2, be provided with longitudinally and be provided with horizontal track stull 4 between 3, two tracks 3 of two tracks;
Described rail bed 1 and the left part of track plates 2 cover on rectangular chamber cover 5 times; The case cover door 5a of chamber cover 5 is arranged on right side, and described track 3 is comprised of two joints, between two joints, is bolted, and its junction is positioned at chamber cover 5 near the position of case cover door 5a;
The wheel of flat bogie 8 coordinates with described track 3, and the right-hand member of flat bogie 8 is connected with traction rope 9, and the other end of traction rope 9 is connected with the left end of flat bogie 8 after walking around the rotating shaft of motor 10 of track plates 2 right parts and the reverse wheel 11 of track 3 left ends.Flat bogie 8 is for loading shield tunnel prototype section of jurisdiction 22.
Fig. 4 illustrates, described cooling and warming compressor 19, humidifier 20 and CO
2generator 21, blower fan 12, temperature sensor 13, humidity sensor 14 and CO
2concentration sensor 15 is all connected with central control unit 20.
Obviously, the bearing of trend that is longitudinally track of the present utility model, and the left and right left that is track bearing of trend and right-hand; Left and right can exchange during actual enforcement.
Claims (1)
1. a shield tunnel prototype section of jurisdiction carbonization test equipment, is characterized in that:
The upper track plates (2) of laying of rail bed (1), is provided with two tracks (3) longitudinally on track plates (2), be provided with horizontal track stull (4) between two tracks (3);
The left part of described rail bed (1) and track plates (2) covers under rectangular chamber cover (5); The case cover door (5a) of chamber cover (5) is arranged on right side, and described track (3) is comprised of two joints, between two joints, by bolt (7), connects, and its junction is positioned at chamber cover (5) near the position of case cover door (5a);
The wheel of flat bogie (8) coordinates with described track (3), the right-hand member of flat bogie (8) is connected with traction rope (9), and the rotating shaft of motor (10) and the reverse wheel (11) of track (3) left end that the other end of traction rope (9) is walked around track plates (2) right part are connected with the left end of flat bogie (8) afterwards;
Blower fan (12), temperature sensor (13), humidity sensor (14) and CO are installed on the inwall of chamber cover (5)
2concentration sensor (15); Chamber cover is also provided with and CO on (5)
2the connected CO of generator (21)
2draft tube (16), the air-conditioner pipe (17) being connected with cooling and warming compressor (19), the humidifier tube (18) being connected with humidifier (20); Described cooling and warming compressor (19), humidifier (20) and CO
2generator (21), blower fan (12), temperature sensor (13), humidity sensor (14) and CO
2concentration sensor (15) is all connected with central control unit (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320664571.6U CN203519608U (en) | 2013-10-26 | 2013-10-26 | Carbonization test unit for prototype duct piece of shield tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320664571.6U CN203519608U (en) | 2013-10-26 | 2013-10-26 | Carbonization test unit for prototype duct piece of shield tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203519608U true CN203519608U (en) | 2014-04-02 |
Family
ID=50378525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320664571.6U Withdrawn - After Issue CN203519608U (en) | 2013-10-26 | 2013-10-26 | Carbonization test unit for prototype duct piece of shield tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203519608U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529192A (en) * | 2013-10-26 | 2014-01-22 | 西南交通大学 | Shield tunnel prototype segment carbonization test device |
| CN106442161A (en) * | 2016-10-21 | 2017-02-22 | 辽宁工程技术大学 | Freezing and thawing cycle action based model test box for tailing dam |
| CN108362631A (en) * | 2018-01-15 | 2018-08-03 | 河南理工大学 | Anchor pole or anchor cable corrosion resistance experimental rig and its test method |
-
2013
- 2013-10-26 CN CN201320664571.6U patent/CN203519608U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529192A (en) * | 2013-10-26 | 2014-01-22 | 西南交通大学 | Shield tunnel prototype segment carbonization test device |
| CN103529192B (en) * | 2013-10-26 | 2015-06-24 | 西南交通大学 | Shield tunnel prototype segment carbonization test device |
| CN106442161A (en) * | 2016-10-21 | 2017-02-22 | 辽宁工程技术大学 | Freezing and thawing cycle action based model test box for tailing dam |
| CN108362631A (en) * | 2018-01-15 | 2018-08-03 | 河南理工大学 | Anchor pole or anchor cable corrosion resistance experimental rig and its test method |
| CN108362631B (en) * | 2018-01-15 | 2023-12-15 | 河南理工大学 | Anchor rod or anchor cable corrosion resistance test device and test method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140402 Effective date of abandoning: 20150624 |
|
| RGAV | Abandon patent right to avoid regrant |