CN204959681U - Test device that comprehensive research dam body bottom seepage flow destroyed - Google Patents
Test device that comprehensive research dam body bottom seepage flow destroyed Download PDFInfo
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- CN204959681U CN204959681U CN201520619928.8U CN201520619928U CN204959681U CN 204959681 U CN204959681 U CN 204959681U CN 201520619928 U CN201520619928 U CN 201520619928U CN 204959681 U CN204959681 U CN 204959681U
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- chute
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Abstract
The utility model provides a test device that comprehensive research dam body bottom seepage flow destroyed, water supply installation and test tank are a whole, water supply installation includes: offered the gap on test tank width direction's the side, the gap both sides are equipped with the scale mark, and the gap interpolation is equipped with the gleitbretter, and the gleitbretter can slide from top to bottom in the spout of gap, be provided with the delivery pipe on test tank length direction's the side. The utility model discloses can provide the test device of theoretical direction for actual dykes and dams seepage flow simulation, the simulation that can really try and test permeate water in various degree seepage flow field that dam body bottom seepage flow destroyed, stress field etc..
Description
Technical field
This is on probation novelly relates to a kind of experimental rig, and the experimental rig of seepage erosion bottom a kind of comprehensive study dam body, belongs to hydraulic engineering physical model technical field specifically.
Background technology
Seepage problems is the key issue of safety of dam body, the development history of dykes and dams i.e. the development history of seepage theory and osmotic control theory in Hydraulic and Hydro-Power Engineering.For the safety problem of reservoir, dykes and dams the most widely in Hydraulic and Hydro-Power Engineering, seepage erosion is more outstanding, and dam body accident at home and abroad accounts for about 45% in investigating the cause.The comprehensive benefits such as the flood control of dam and dyke, irrigation, generating, water supply, shipping, tourism and improvement are ecological are huge, are important infrastructure and the safety assurance of Chinese society economy.The safety of these engineerings, in the ups and downs, depends on the development of seepage theory and technology largely.Therefore, the research of dam seepage destruction is very urgent.
There is a series of deficiency in current existing dam seepage model, as: can only be single for waterproof dams such as concrete dams, or the seepage flow for permeable dikes such as earth and rockfill dams that can only be single, comprehensive model is then less; Secondly be there is definitely permeable and absolute fluid-tight dam body in Practical Project, the seepage state of traditional experimental rig simulation does not meet actual conditions; And in traditional experimental rig, the soil thickness being positioned at dam body bottom is fixed, and cannot change, so the result of the test that draws of traditional experiment device and Practical Project error are comparatively large, the demand of examination border engineering can not be better met.Therefore need the model test apparatus of seepage erosion bottom a kind of comprehensive study dam body.
Summary of the invention
This novel object on probation overcomes the deficiencies in the prior art, there is provided a kind of and can be the experimental rig that the simulation of examination border dam seepage provides theoretical direction, the simulation that can really try and test in various degree bottom permeable dam body the seepage field of seepage erosion, stress field comprehensive study dam body bottom the experimental rig of seepage erosion.
In order to solve the problems of the technologies described above, this tries out novel being achieved through the following technical solutions:
The model test apparatus of seepage erosion bottom a kind of comprehensive study dam body, comprise for providing the water supply installation of upper pond level, for filling the test flume of sample, the data acquisition unit for Data Collection and process, wherein, test flume outside is the rectangular structure of open topped, inside is provided with a dam body analogue means, and test flume is connected with data acquisition unit by data wire; Described dam body analogue means comprises:
The two lateral walls in test face, place, flute length limit is all provided with orthogonal vertical chute and horizontal concrete chute, horizontal concrete chute is fixed on vertical chute by movable bolt, two lower shafts are provided with between two horizontal concrete chutes, the two ends of lower shaft are provided with roller, lower shaft is rolled by roller and is connected on horizontal concrete chute, movable on lower shaft expanded sheet metal is installed, in expanded sheet metal, is arranged with water-stop sheet; Test flume is preferably machine glass material.
Water supply installation and test flume are an entirety, and described water supply installation comprises: a side of test flume width offers overfall gap, and overfall gap both sides are provided with graduation mark, are inserted with slide plate in overfall gap, and slide plate can slide up and down in the chute of overfall gap; One side of test flume length direction is provided with feed pipe.
Vertical chute being provided with graduation mark, realizing arranging different dam substratum thickness by moving up and down movable bolt.
Horizontal concrete chute is provided with graduation mark, the removable angle measuring calibration dish in vertical chute arranged outside.
Throughput horn craving scale and horizontal scale line can adjust expanded sheet metal angle and end distance intuitively, and accurate analog goes out the different parameters of various dam structure.
Preferably, two pieces of apertures are that the expanded sheet metal of three millimeters is vertically mounted on lower shaft, and two pieces of water-stop sheets are arranged in the draw-in groove of gauze wire cloth, and roller is arranged on lower shaft two ends, and expanded sheet metal can rotate around lower shaft.Wherein water-stop sheet is waterproof steel disc, and water-stop sheet can be used for simulating upstream face and the back side on waterproof dam.
Described data acquisition unit comprises: terminal, be uniformly distributed in liquid level sensor on the sidewall of test flume downstream and dial gage installing rack, dial gage installing rack is provided with dial gage, and liquid level sensor is connected with terminal by data wire with dial gage.
Data acquisition unit can monitor seepage field in flow event at the bottom of dam and displacement field in real time by the connection of liquid level sensor and dial gage and terminal.
Compared with prior art, the utility model has following beneficial effect:
The model test apparatus of seepage erosion bottom a kind of comprehensive study dam body that the utility model proposes, can be the simulation of actual dam seepage and provide the experimental rig of theoretical direction, the simulation that can really try and test be the seepage field, stress field etc. of seepage erosion bottom permeable dam body in various degree.
This novel this device described on probation can control upper pond level by the slide plate of mobile water supply installation, and simulation tries the different upper pond level of border dam construction to the seepage effect bottom dam body; Can be used for simulating by changing two gauze wire cloths of dam body analogue means and the angle of water-stop sheet and the spacing of rectangular base plate the dam structure of concrete difformity parameter; Can determine different dam body bottom solum thickness by the movement of horizontal concrete chute in vertical chute, simulation examination border soil layer is on the impact of seepage flow bottom dam body; Can according to the specific nature of research object, do the dam body simulation of true examination, if dam body is waterproof dam body, water-stop sheet is arranged in the draw-in groove of expanded sheet metal, if dam body is permeable dike, then water-stop sheet is removed, and make dam body model with the material that permeable degree is close, be placed between two gauze wire cloths; Finally be connected to seepage field, the displacement field in supervision subjects test flume downstream when the liquid level sensor of terminal and dial gage can try.To sum up, this device can be the simulation of examination border dam seepage and provides theoretical direction, also can impart knowledge to students as geotechnical engineering and hydraulic engineering and the use of test.
Accompanying drawing explanation
Example or technical scheme of the prior art is executed in order to be illustrated more clearly in the utility model examination, be briefly described executing the required accompanying drawing used in example or description of the prior art to examination below, apparently, accompanying drawing in the following describes is only that example is executed in examinations more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the partial, detailed view of vertical chute;
Fig. 3 is water supply installation structural representation;
Fig. 4 is the amplification profile of expanded sheet metal and water-stop sheet;
Fig. 5 is analogue means water level in man-hour, soil sample schematic diagram;
In figure: 1, overfall gap; 2, slide plate; 3, test flume; 4, feed pipe; 5, vertical chute; 6, horizontal concrete chute; 7, removable angle measuring calibration dish; 8, movable bolt; 9, expanded sheet metal; 10, roller; 11, lower shaft; 12, dial gage; 13, dial gage installing rack; 14, liquid level sensor; 15, terminal; 16, water-stop sheet.
mode is executed in concrete examination
For making the purpose of this utility model and technical scheme clearly, executing example below in conjunction with the utility model examination and the technical solution of the utility model is clearly and completely described.Obviously, it is that example is executed in part examination of the present utility model that example is executed in described examination, instead of example is executed in whole examinations.Execute example based on described examination of the present utility model, example is executed in the every other examination that those of ordinary skill in the art obtain under without the need to the prerequisite of creative work, all belongs to the scope of the utility model protection.
As shown in Figure 1, the orthogonal vertical chute 5 that test flume 3 two lateral walls is all installed and horizontal concrete chute 6, horizontal concrete chute 6 is fixed on vertical chute 5 by movable bolt 8, two lower shafts 11 are provided with between two horizontal concrete chutes 6, the two ends of lower shaft 11 are provided with roller 10, lower shaft 11 is rolled by roller 10 and is connected on horizontal concrete chute 6, movablely on lower shaft 11 is provided with expanded sheet metal 9, is arranged with water-stop sheet 16 in expanded sheet metal 9.
As shown in Figure 2, the utility model arranges graduation mark at vertical chute 5, can realize arranging different dam substratum thickness by moving up and down movable bolt 8 like this.
As shown in Figure 3, the utility model arranges overfall gap 1 and slide plate 2 at test flume 3 left surface, and is provided with scale in overfall gap 1 both sides, can realize different upper pond levels like this by regulating slide plate 2.
As shown in Figure 4, two pieces of water-stop sheets 16 are arranged in the draw-in groove of expanded sheet metal 9, and roller 10 is arranged on lower shaft 11 two ends, and expanded sheet metal 9 can rotate around lower shaft 11.Wherein water-stop sheet 16 is waterproof steel disc, and water-stop sheet 16 can be used for simulating upstream face and the back side on waterproof dam.
As shown in Figure 5, when utilizing the utility model to study seepage erosion test bottom dam body, following concrete measure can be adopted:
A. according to Practical Project situation, regulate movable bolt 8 to specified altitude assignment.In test flume 3, layering adds soil sample to lower shaft 11, and carries out pressure examination, exhaust and saturated process.
B. the dam body of foundation actual needs simulation, changes the spacing between the angle of expanded sheet metal 9 in dam body analogue means and two expanded sheet metals 9.According to the water permeability of actual dam body, if dam body is waterproof dam body, water-stop sheet 16 is arranged in the draw-in groove of expanded sheet metal 9, if dam body is permeable dike, does not then add water-stop sheet 16, and make dam body model with the material that permeable degree is close, be placed between two expanded sheet metals 9.
C. change the position of slide plate 2, make the upper pond level in cuboid test flume 3 different, simulate the impact of different upper pond level on seepage flow bottom dam body.
D. liquid level sensor 14 that test flume downstream is set is uniformly distributed and dial gage 12 can measure relevant parameter, can by the seepage field in terminal 15 in real time flow event at the bottom of monitoring dam and displacement field.
This experimental rig is applicable to the research of dam body engineering seepage erosion, for actual dam body engineering construction, design etc. provide reference and guidance, and also can as the use of the teachings and researches test of geotechnical engineering and hydraulic engineering subject.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the utility model.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
The implication of the "and/or" described in the utility model refers to respective individualism or both simultaneous situations include interior.
The indirect connection that can be the direct connection between parts also can be by other parts between parts of the implication of " connection " described in the utility model.
Execute example for enlightenment with above-mentioned according to ideal examination of the present utility model, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on manual, must determine its technical scope according to right.
Claims (5)
1. the experimental rig of seepage erosion bottom a comprehensive study dam body, comprise for providing the water supply installation of upper pond level, for filling the test flume of sample, the data acquisition unit for Data Collection and process, wherein, test flume outside is the rectangular structure of open topped, inside is provided with a dam body analogue means, and test flume is connected with data acquisition unit by data wire; It is characterized in that, water supply installation and test flume are an entirety, and described dam body analogue means comprises:
The two lateral walls in test face, place, flute length limit is all provided with orthogonal vertical chute and horizontal concrete chute, horizontal concrete chute is fixed on vertical chute by movable bolt, two lower shafts are provided with between two horizontal concrete chutes, the two ends of lower shaft are provided with roller, lower shaft is rolled by roller and is connected on horizontal concrete chute, movable on lower shaft expanded sheet metal is installed, movablely in expanded sheet metal is arranged with water-stop sheet;
Described water supply installation comprises: a side of test flume width offers overfall gap, and overfall gap both sides are provided with graduation mark, are inserted with slide plate in overfall gap, and slide plate can slide up and down in the chute of overfall gap; One side of test flume length direction is provided with feed pipe.
2. the experimental rig of seepage erosion bottom a kind of comprehensive study dam body according to claim 1, is characterized in that, vertical chute is provided with graduation mark, realizes arranging different dam substratum thickness by moving up and down movable bolt.
3. the experimental rig of seepage erosion bottom a kind of comprehensive study dam body according to claim 1, is characterized in that, horizontal concrete chute is provided with graduation mark, the removable angle measuring calibration dish in vertical chute arranged outside.
4. the experimental rig of seepage erosion bottom a kind of comprehensive study dam body according to claim 1, it is characterized in that, expanded sheet metal is vertically mounted on lower shaft, and expanded sheet metal can rotate around lower shaft.
5. the experimental rig of seepage erosion bottom a kind of comprehensive study dam body according to claim 1, it is characterized in that, described data acquisition unit comprises: terminal, be uniformly distributed in liquid level sensor on the sidewall of test flume downstream and dial gage installing rack, dial gage installing rack is provided with dial gage, and liquid level sensor is connected with terminal by data wire with dial gage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520619928.8U CN204959681U (en) | 2015-08-18 | 2015-08-18 | Test device that comprehensive research dam body bottom seepage flow destroyed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520619928.8U CN204959681U (en) | 2015-08-18 | 2015-08-18 | Test device that comprehensive research dam body bottom seepage flow destroyed |
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| CN204959681U true CN204959681U (en) | 2016-01-13 |
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| CN201520619928.8U Expired - Fee Related CN204959681U (en) | 2015-08-18 | 2015-08-18 | Test device that comprehensive research dam body bottom seepage flow destroyed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441493A (en) * | 2019-06-20 | 2019-11-12 | 中国地质大学（武汉） | The river accumulation of Multifunctional adjustable landslide causes calamity range testing equipment |
-
2015
- 2015-08-18 CN CN201520619928.8U patent/CN204959681U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441493A (en) * | 2019-06-20 | 2019-11-12 | 中国地质大学（武汉） | The river accumulation of Multifunctional adjustable landslide causes calamity range testing equipment |
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| 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: 20160113 Termination date: 20160818 |
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| CF01 | Termination of patent right due to non-payment of annual fee |