CN201429430Y - Collected stone observation box used in upstream sloping stone collecting pit - Google Patents
Collected stone observation box used in upstream sloping stone collecting pit Download PDFInfo
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- CN201429430Y CN201429430Y CN2009201235206U CN200920123520U CN201429430Y CN 201429430 Y CN201429430 Y CN 201429430Y CN 2009201235206 U CN2009201235206 U CN 2009201235206U CN 200920123520 U CN200920123520 U CN 200920123520U CN 201429430 Y CN201429430 Y CN 201429430Y
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- box body
- collection stone
- layer box
- stone
- observation case
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Abstract
The utility model relates to a collected stone observation box used in an upstream sloping stone collecting pit, and aims to perform reliable, accurate, and convenient and fast monitoring on the stoneamount in the stone collecting pit to ensure safe running and economical benefits of the machine set. The utility model adopts the technical scheme that the collected stone observation box used in the upstream sloping stone collecting pit is characterized in that the observation box is formed by the nesting of an outer layer box body and an inner layer box body which are provided with openings onthe top parts and are not in contact with each other; the outer layer box body is fixed on the bottom plate of the stone collecting pit; the inner layer box body is fixed and hung under a concrete beam through four pull reinforced bars arranged at four corners; and reinforced bar meters are mounted on the pull reinforced bars. The observation box is mainly used in water resource and hydropower engineering.
Description
Technical field
The utility model relates to a kind of monitoring device that collects collection stone in the stone pit, and particularly a kind of collection stone observation case that is used in the upstream ramp collection stone pit mainly is applicable in the Hydraulic and Hydro-Power Engineering.
Background technology
To the long diversion tunnel in the Hydraulic and Hydro-Power Engineering, under the situation of geologic condition permission, often adopt not lining cutting or spray anchor as the permanent supporting form, have the quickening construction speed, reduce advantages such as construction investment.But, in long-time running, be subjected to the influence of internal water pressure and current scour, phenomenons such as the base plate scour destroys, wall rock loosening falls piece, concrete spray coating peels off appear in tunnel, the rock ballast that drops all can drop on the tunnel base plate, wherein current will increase shock resistance towards motionless than ratchel, and by the stone that current are got excited, and then might flow downstream and descend, enter in the hydraulic turbine damaging property security incident.To western high concentration of sediment river course, though be provided with sand protection facilities in tunnel inflow point, a spot of medium and small gravel still might enter in the hole, flows to downstream into the hydraulic turbine and causes equipment damage.For avoiding accident harm, be everlasting diversion tunnel end and middle appropriate location are provided with the collection stone pit, the interception rock ballast.The collection stone pit can not only play the effect of protection hydraulic turbine safety, also can reflect the structural safety situation of diversion tunnel simultaneously from the side, but will give full play to its benefit, must carry out the monitoring of collection stone.Collection stone quantitative determination work is the important step in the operational process of power station, it is a key foundation of determining tunnel emptying, maintenance clearance time, as the collection stone amount of collection stone pit not being monitored, then after each collection stone pit is collected stone and is filled up, roll from the upstream stone that gets off and gravel etc. will directly enter in the hydraulic turbine, influence unit safety operation, may cause security incident; Just do not shut down scarfing cinder when the collection stone pit collects full to setting when requiring, then waste of manpower, financial resources and material resources influence economic benefit.So when Ji Shikengji completely requires to setting, need shutdown in time and emptying tunnel to check and scarfing cinder, in order to avoid directly influence the safe operation and the economic benefit of unit.
In the relevant abroad document, yet there are no in the collection stone pit of lined tunnel not collection stone monitoring device and relevant experimental study situation are set.Australia is not arranging piezometric tube in the lined tunnel, has or not the falling rocks situation to take place in the tunnel in order to monitor, but DeGrain.Still do not have perfect collection stone monitoring device in the engineering at present, add to have more uncertain factor in the actual moving process, therefore collect the stone monitoring and remain to be done further research.
Summary of the invention
The technical problems to be solved in the utility model is: the problem at above-mentioned existence provides a kind of simple in structure, convenient and reliable collection stone that is used in the upstream ramp collection stone pit to observe case; can carry out reliably the collection stone amount of collection in the stone pit, accurately, conveniently monitoring, thereby guarantee the safe operation and the economic benefit of unit.
The technical scheme that the utility model adopted is: be used for the collection stone observation case in the upstream ramp collection stone pit, it is characterized in that: it is formed with interior layer box body is nested by open top and mutually non-touching outer casing, its ectomesoderm casing is fixed on the collection stone pit base plate, interior layer box body lifts reinforcing bar and fixedly hangs on concrete beam below by being arranged in four of four knuckle places, lifts the reinforcing bar meter is installed on the reinforcing bar.
The described reinforcing bar outer casing stainless steel sleeve pipe that lifts, the welding of sleeve bottom and internal layer bottom half, top and lifting between the reinforcing bar is tightly connected.
Hollow between the described inside and outside layer box body, and spacing is 5cm, and interior layer box body cope level exceeds outer layer box body 5cm, and the top, space between the inside and outside layer box body is provided with rubber plug.
Be welded with floor by the full weld mode on the described inside and outside layer box body sidewall.
Angle steel is welded by the full weld mode in adjacent each piece panel junction of described inside and outside layer box body.
Described inside and outside layer box body all adopts corrosion resistant plate weldering system to form.
The beneficial effects of the utility model are: in actual use; to collect stone observation case and put into the collection stone pit; collect the upstream and sweep away next rubble; the weight of rubble is drawn and is observed by being installed in the reinforcing bar meter spreading cable that lifts on the reinforcing bar; the observation achievement is converted into reinforcement stresses; pass through shop experiment; simulate reinforcement stresses and collection stone observation case weight relationships curve; collection stone observation case weight and collection stone height relationships curve; calculation of parameter with reference to the shop experiment calibration; analyze; judge the collection stone situation in the collection stone observation case; collection stone amount in the collection stone pit is carried out reliably; accurately; conveniently monitoring; when Ji Shikengji completely requires to setting; in time arrange to shut down cleaning, thereby guaranteed the safe operation and the economic benefit of unit.
Description of drawings
Fig. 1 is the two-layer body structure figure of the utility model.
Fig. 2 is the utility model internal layer body structure figure.
Fig. 3 is a vertical view of the present utility model.
Fig. 4 is that the A-A of Fig. 1 is to cut-open view.
Fig. 5 is the B portion enlarged drawing of Fig. 2.
Fig. 6 is the annexation figure between the utility model ectomesoderm casing and the collection stone pit base plate.
Fig. 7 is the utility model structural drawing in actual use.
Embodiment
Extremely shown in Figure 6 as Fig. 1, present embodiment is by open top and mutually non-touching outer casing 1 and interior layer box body 2 nested forming, 1 buffer action of its ectomesoderm casing, not influenced by external force with layer box body in guaranteeing, for top and bottom do not have steel plate, all around by the casing of corrosion resistant plate weldering system, its size is calculated gained according to the position of cabinet arrangement and the characteristics of collection stone pit concrete floor.For making outer layer box body 1 and the fixation of collection stone pit underplate concrete, weld angle steel outside around layer box body 1 bottom, with expansion bolt this angle steel and collection stone pit underplate concrete are fixed.Interior layer box body 2 for load collection stone, load-bearing is used, for the top uncovered, reach the casing of bottom for corrosion resistant plate weldering system all around, box sizes is definite according to collection stone pit size and design feature.Interior layer box body 2 lifts reinforcing bar 3 and fixedly hangs on concrete beam 4 belows by being arranged in four of four knuckle places, lift reinforcing bar meter 5 is installed on the reinforcing bar 3, lift reinforcing bar 3 bottom car silks simultaneously, and use the nut anchoring between the interior layer box body 2, during anchoring, it is vertical to require to lift reinforcing bar 3.
In order to protect reinforcing bar meter 5, lifting reinforcing bar 3 outer casing stainless steel sleeve pipes 6, the welding of sleeve pipe 6 bottoms and interior layer box body 2 bottoms, top and lifting between the reinforcing bar 3 is tightly connected.
Hollow between the described inside and outside layer box body 2,1, and spacing is 5cm, and interior layer box body 2 cope levels exceed outer layer box body 5cm, and the top, space between the inside and outside layer box body 2,1 is provided with rubber plug 7, to prevent that rubble from falling into the slit between the inside and outside layer box body 2,1, influence measurement result.
For increasing tank wall rigidity, be welded with floor on inside and outside layer box body 2,1 sidewall, adjacent each piece panel junction welding angle steel of inside and outside layer box body 2,1 adopts the full weld mode to fix between floor, angle steel and the casing.
Above-mentioned each parts must satisfy corresponding technological requirement when welding, solid and reliable to guarantee collection stone observation case.Except that stainless steel material, other steel all carry out the antirust, anti-corrosive brushing, derusting grade Sa2.5, brushing thick paste type epoxy pitch rust inhibiting primer 125 μ m and thick paste type epoxy pitch finish paint 250 μ m, total dry paint thickness 375 μ m.
As shown in Figure 7, in actual use, stone and gravel roll from the upstream toward the downstream under the effect of current, in theory, and the collection stone pit of the full the most close upstream side of collection earlier, falling rocks backward successively then.Carrying out scarfing cinder again when the collection stone pit in downstream is filled, is most economical, also is the most rational, therefore will collect stone and observe case be arranged in the collection stone pit end in downstream, and be arranged in parallel two, so that standby and mutual checking.The weight of rubble is drawn and is observed by being installed in the reinforcing bar meter 5 spreading cables that lift on the reinforcing bar 3; the observation achievement is converted into reinforcement stresses; pass through shop experiment; simulate reinforcement stresses and collection stone observation case weight relationships curve; collection stone observation case weight and collection stone height relationships curve; calculation of parameter with reference to the shop experiment calibration; analyze; judge the collection stone situation in the collection stone observation case; collection stone amount in the collection stone pit is carried out reliably; accurately; conveniently monitoring; when Ji Shikengji completely requires to setting; in time arrange to shut down cleaning, for later stage actual motion observation provides foundation.
Claims (9)
1, a kind of collection stone observation case that is used in the upstream ramp collection stone pit, it is characterized in that: it is by open top and mutually non-touching outer casing (1) and nested the forming of interior layer box body (2), its ectomesoderm casing (1) is fixed on the collection stone pit base plate, interior layer box body (2) lifts reinforcing bar (3) and fixedly hangs on concrete beam (4) below by being arranged in four of four knuckle places, lifts reinforcing bar (3) and goes up reinforcing bar meter (5) is installed.
2, the collection stone observation case that is used in the upstream ramp collection stone pit according to claim 1, it is characterized in that: described reinforcing bar (3) the outer casing stainless steel sleeve pipe (6) that lifts, sleeve pipe (6) bottom and the welding of interior layer box body (2) bottom, top and lifting between the reinforcing bar (3) is tightly connected.
3, the collection stone observation case that is used in the upstream ramp collection stone pit according to claim 1 and 2, it is characterized in that: hollow between the described inside and outside layer box body (2,1), and spacing is 5cm, interior layer box body (2) cope level exceeds outer layer box body (1) 5cm, and the top, space between the inside and outside layer box body (2,1) is provided with rubber plug (7).
4, the collection stone observation case that is used in the upstream ramp collection stone pit according to claim 1 and 2 is characterized in that: be welded with floor by the full weld mode on described inside and outside layer box body (2, the 1) sidewall.
5, the collection stone observation case that is used in the upstream ramp collection stone pit according to claim 3 is characterized in that: be welded with floor by the full weld mode on described inside and outside layer box body (2, the 1) sidewall.
6, the collection stone observation case that is used in the upstream ramp collection stone pit according to claim 1 and 2, it is characterized in that: angle steel is welded by the full weld mode in adjacent each piece panel junction of described inside and outside layer box body (2,1).
7, the collection stone observation case that is used in the upstream ramp collection stone pit according to claim 3, it is characterized in that: angle steel is welded by the full weld mode in adjacent each piece panel junction of described inside and outside layer box body (2,1).
8, the collection stone observation case that is used in the upstream ramp collection stone pit according to claim 1 and 2, it is characterized in that: described inside and outside layer box body (2,1) all adopts corrosion resistant plate weldering system to form.
9, the collection stone observation case that is used in the upstream ramp collection stone pit according to claim 3, it is characterized in that: described inside and outside layer box body (2,1) all adopts corrosion resistant plate weldering system to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201235206U CN201429430Y (en) | 2009-07-02 | 2009-07-02 | Collected stone observation box used in upstream sloping stone collecting pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201235206U CN201429430Y (en) | 2009-07-02 | 2009-07-02 | Collected stone observation box used in upstream sloping stone collecting pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201429430Y true CN201429430Y (en) | 2010-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201235206U Expired - Fee Related CN201429430Y (en) | 2009-07-02 | 2009-07-02 | Collected stone observation box used in upstream sloping stone collecting pit |
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| Country | Link |
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| CN (1) | CN201429430Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178266A (en) * | 2015-06-24 | 2015-12-23 | 中水北方勘测设计研究有限责任公司 | Method for preventing stone in tunnel from entering water turbine in high-burial-depth, high-ground-temperature and high-ground-stress rockburst area |
-
2009
- 2009-07-02 CN CN2009201235206U patent/CN201429430Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178266A (en) * | 2015-06-24 | 2015-12-23 | 中水北方勘测设计研究有限责任公司 | Method for preventing stone in tunnel from entering water turbine in high-burial-depth, high-ground-temperature and high-ground-stress rockburst area |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100324 Termination date: 20180702 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |