CN105118363B - Test method and model for simulating impervious curtain between concrete and bedrock - Google Patents
Test method and model for simulating impervious curtain between concrete and bedrock Download PDFInfo
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- CN105118363B CN105118363B CN201510384055.1A CN201510384055A CN105118363B CN 105118363 B CN105118363 B CN 105118363B CN 201510384055 A CN201510384055 A CN 201510384055A CN 105118363 B CN105118363 B CN 105118363B
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- 238000010998 test method Methods 0.000 title claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 238000004088 simulation Methods 0.000 claims abstract description 13
- 238000012360 testing method Methods 0.000 claims abstract description 13
- 239000011435 rock Substances 0.000 claims description 54
- 238000000034 method Methods 0.000 claims description 14
- 230000003204 osmotic effect Effects 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000002689 soil Substances 0.000 description 3
- 239000011440 grout Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a test method and a model for simulating an impervious curtain between concrete and bedrock, wherein a more square bedrock is found in advance, one side of the bedrock is roughened, a high-pressure water pipe with a plastic plug is placed in the middle of the roughened surface of the bedrock, then a mixed concrete layer is poured on the roughened bedrock, the high-pressure water pipe is completely covered, and when the normal concrete is not condensed, a slender steel bar is extended into the high-pressure water pipe to puncture the plastic plug at the other end of the high-pressure water pipe to form a post-puncture hole, so that water can enter the contact surface of the bedrock and the concrete layer from the post-puncture hole; after the normal concrete is condensed, the high-pressure water pipe is connected with the high-pressure water pump, and the required water pressure is adjusted by observing data on the water pressure meter, so that the seepage value of water flow in the curtain when the curtain in the impervious curtain is contacted with the bedrock can be obtained in a simulation test mode, and the seepage quantity and the seepage pressure change characteristic of the curtain and the damage relation of the seepage quantity and the seepage pressure change characteristic of the curtain and the curtain can be obtained.
Description
Technical field
The present invention relates to the test method and model of seepage proof curtain between a kind of simulation concrete and basement rock, belong to dam and prevent
Ooze curtain technique field.
Background technology
The most large medium-size station of China and reservoir have run more than 20 years, and also more projects are successively in recent years
Go into operation and be completed.Seepage proof curtain is the crucial component of reservoir dam impervious leakage-stopping, and seepage proof curtain is chronically at high-pressure osmosis
In the presence of current, hydro-geochemical environment is complicated, and seepage proof curtain will continue to suffer from corroding and aging decays.To non-karst region
Area, seepage of dam is based on fissurity seepage；To karst area, seepage field is increasingly complex, has karst concurrently and fissurity oozes
Leakage feature.
Grout curtain acts on the process in retrofilling karst or crack its essence is cement grout in high pressure.Actual
Geologic body is huge, and material composition and textural anomaly are complicated.Because actual geologic body is huge, only theoretical point at present
Analysis and practical application, also without the formation about seepage proof curtain and change procedure analogue data, influence the essence to seepage proof curtain
Analyze foundation.
The content of the invention
It is an object of the present invention to provide between a kind of simulation concrete and basement rock seepage proof curtain test method and mould
Type, between laboratory simulation concrete and basement rock the formation and change of seepage proof curtain provides close to real data foundation,
So as to overcome the deficiencies in the prior art.
The technical proposal of the invention is realized in this way：
The test method of seepage proof curtain is that this method is to antiseepage curtain between a kind of simulation concrete and basement rock of the present invention
During the whole process progress simulated test that curtain contact with basement rock in curtain, the basement rock of one piece of more Founder is looked in advance, will wherein one
Face dabbing, the position in the middle of basement rock roughened surface is placed on by the high-pressure water pipe with Plastic cap, then by the concrete layer of mix
It is cast on the basement rock of dabbing, and high-pressure water pipe is completely covered, formation can be so simulated between concrete layer and basement rock
Seepage proof curtain；When normal concrete is non-condensing, stretched into the modeling of high-pressure water pipe other end with elongated reinforcing bar in high-pressure water pipe
Material plug is broken, and hole is pricked after forming one, enables water to enter from rear bundle hole the contact surface of basement rock and concrete layer；It is mixed etc. normality
After solidifying soil condenses, high-pressure water pipe is connected the data on high-pressure hydraulic pump, observation water pressure gauge to adjust required hydraulic pressure, so i.e.
When can show that curtain is contacted with basement rock in seepage proof curtain by way of the simulated test in curtain current osmotic value, Yi Jike
To draw injuring relation of the seepage discharge of curtain with osmotic pressure variation characteristic and its with curtain.
The test model of seepage proof curtain between a kind of simulation concrete of the invention and basement rock that are built according to the above method
For the test model includes basement rock, and basement rock one side is provided with concrete layer, high pressure is embedded with the contact surface of basement rock and concrete layer
Water pipe, high-pressure water pipe is provided with water pressure gauge.
In aforesaid experimental model, described high-pressure water pipe one end is provided with Plastic cap, and high-pressure water pipe is provided with the one of Plastic cap
End is located at the center of basement rock and concrete layer contact surface, and Plastic cap pricks hole after being provided with.
In aforesaid experimental model, the basement rock is contacted with concrete layer contact surface for hair side.
By adopting the above-described technical solution, the present invention is compared with prior art, the present invention can be simulated in laboratory
Can be with the seepage proof curtain model of geological structure body between the concrete and basement rock of practical operation.The seepage flow of curtain can be drawn by experiment
Amount and osmotic pressure variation characteristic and its injuring relation with curtain, can also be by the current that are oozed out in test model, analysis
Water quality, draws the content and pH value of SO42-, HCO3-, Ca2+, Mg2+ plasma, electrical conductivity, temperature field in seepage proof curtain body
Etc. data, formation and change for seepage proof curtain provide the data foundation close to reality.For in laboratory simulation concrete and base
The formation and change of seepage proof curtain provide the data foundation close to reality between rock.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Mark in accompanying drawing：1- concrete layers；2- basement rock；3- high-pressure water pipes；4- water pressure gauges；5- Plastic caps；6- basement rock
With the contact surface of concrete layer；Hole is pricked after 7-.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples, but not as to any of the present invention
Limitation.
The test method of seepage proof curtain is between a kind of simulation concrete and basement rock of the present invention, as shown in figure 1, this method
It is, when whole process that curtain in seepage proof curtain is contacted with basement rock carries out simulated test, one piece of more upright base to be looked in advance
Rock 2, will wherein one side dabbing, the high-pressure water pipe 3 with Plastic cap 5 is placed on the position in the middle of basement rock roughened surface, then will
The concrete layer 1 of mix is cast on the basement rock 2 of dabbing, and high-pressure water pipe 3 is completely covered, so can be in concrete layer 1
Simulation forms seepage proof curtain between basement rock 2；When normal concrete is non-condensing, stretched into elongated reinforcing bar in high-pressure water pipe 3
The Plastic cap 5 of the other end of high-pressure water pipe 3 is broken, formed one after prick hole 7, enable water to from rear bundle hole 7 enter basement rock with
The contact surface 6 of concrete layer；After being condensed Deng normal concrete, high-pressure water pipe 3 is connected on high-pressure hydraulic pump, observation water pressure gauge 4
Data can so show that curtain connects with basement rock in seepage proof curtain come the hydraulic pressure required for adjusting by way of the simulated test
When touching in curtain current osmotic value, and can draw the seepage discharge of curtain with osmotic pressure variation characteristic and its with curtain
Injuring relation.
The test model of seepage proof curtain between a kind of simulation concrete of the invention and basement rock that are built according to the above method,
As shown in figure 1, the test model includes basement rock 2, basement rock one side is provided with concrete layer 1, in the contact surface 6 of basement rock and concrete layer
High-pressure water pipe 3 is embedded with, high-pressure water pipe is provided with water pressure gauge 4.The one end of high-pressure water pipe 3 is provided with Plastic cap 5, and high-pressure water pipe is provided with
One end of Plastic cap is located at the center of basement rock 2 and the contact surface of concrete layer 1, and Plastic cap pricks hole 7 after being provided with.Basement rock is with mixing
Solidifying soil layer contact surface 6 is that hair side is contacted.
Embodiment
This example is as shown in figure 1, the whole process that curtain is contacted with basement rock in seepage proof curtain can be simulated.Look for one piece it is more square
Positive basement rock 2, will wherein one side dabbing, the high-pressure water pipe 3 with Plastic cap 5 is placed on the position in the middle of basement rock roughened surface,
Then the concrete layer 1 of mix is cast on the basement rock 2 of dabbing, and high-pressure water pipe is completely covered, in normal concrete not
During condensation, stretched into elongated reinforcing bar in high-pressure water pipe 3 and to break the Plastic cap 5 of the other end of high-pressure water pipe 3, formed after one
Hole 7 is pricked, enables water to enter from rear bundle hole the contact surface 6 of basement rock and concrete layer.The effect of Plastic cap 5 be prevent from pouring it is mixed
During solidifying soil, concrete blocks the mouth of pipe into high-pressure water pipe, only pours after finishing again by pricking a hole after elongated reinforcing bar.Deng
After normal concrete condenses, after maintenance a period of time, high-pressure water pipe 3 is connected into the data on high-pressure hydraulic pump, observation water pressure gauge 4 and come
Hydraulic pressure required for regulation, so as to draw the osmotic value of current in curtain.The water of outflow can carry out physics and chemical analysis, draw
The primary evaluation factor such as SO42-, HCO3-, Ca2+, Mg2+ content and pH value, electrical conductivity, temperature field.
Claims (4)
1. the test method of seepage proof curtain between a kind of simulation concrete and basement rock, it is characterised in that：The curtain in seepage proof curtain
Curtain contact with basement rock whole process progress simulated test when, look in advance one piece more Founder basement rock（2）, wherein will simultaneously dig
Hair, will carry Plastic cap（5）High-pressure water pipe（3）The position in the middle of basement rock roughened surface is placed on, then by the concrete of mix
Layer（1）It is cast in the basement rock of dabbing（2）On, and high-pressure water pipe is completely covered, so can be in concrete layer（1）With basement rock
（2）Between simulation form seepage proof curtain；When normal concrete is non-condensing, high-pressure water pipe is stretched into elongated reinforcing bar（3）It is middle to incite somebody to action
High-pressure water pipe（3）The Plastic cap of other end（5）Break, hole is pricked after forming one（7）, enable water to from rear bundle hole（7）Into
The contact surface of basement rock and concrete layer（6）；After being condensed Deng normal concrete, by high-pressure water pipe（3）High-pressure hydraulic pump is connected, water is observed
Press table（4）On data adjust required hydraulic pressure, can so be drawn by way of the simulated test in seepage proof curtain
When curtain is contacted with basement rock in curtain current osmotic value, and the seepage discharge of curtain and osmotic pressure variation characteristic can be drawn
And its injuring relation with curtain.
2. method according to claim 1, it is characterised in that：Test model includes basement rock（2）, basement rock one side is provided with concrete
Layer（1）, in basement rock and the contact surface of concrete layer（6）It is embedded with high-pressure water pipe（3）, high-pressure water pipe is provided with water pressure gauge（4）.
3. method according to claim 2, it is characterised in that：The high-pressure water pipe（3）One end is provided with Plastic cap（5）, it is high
The one end of pressure pipe provided with Plastic cap is located at basement rock（2）With concrete layer（1）The center of contact surface, after Plastic cap is provided with
Prick hole（7）.
4. method according to claim 2, it is characterised in that：The basement rock and concrete layer contact surface（6）Contacted for hair side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510384055.1A CN105118363B (en) | 2015-07-03 | 2015-07-03 | Test method and model for simulating impervious curtain between concrete and bedrock |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510384055.1A CN105118363B (en) | 2015-07-03 | 2015-07-03 | Test method and model for simulating impervious curtain between concrete and bedrock |
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| CN105118363A CN105118363A (en) | 2015-12-02 |
| CN105118363B true CN105118363B (en) | 2017-09-26 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466836A (en) * | 2015-12-31 | 2016-04-06 | 中国电建集团贵阳勘测设计研究院有限公司 | Method for simulating impervious curtain of reservoir dam and test structure model adopted by method |
| CN105464041A (en) * | 2015-12-31 | 2016-04-06 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and model for simulating impervious curtain of reservoir dam |
| CN106092855A (en) * | 2016-07-07 | 2016-11-09 | 中国电建集团贵阳勘测设计研究院有限公司 | Device and method for simulation test of impervious curtain |
| CN112504938B (en) * | 2020-12-13 | 2022-09-20 | 中国科学院武汉岩土力学研究所 | Seepage simulation device, real triaxial rock permeability real-time measuring system and method |
| CN112834403B (en) * | 2021-01-06 | 2023-01-03 | 中国建筑股份有限公司 | Penetration test method |
| CN112782055B (en) * | 2021-01-06 | 2023-01-03 | 中国建筑股份有限公司 | Penetration test device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4552011A (en) * | 1982-09-28 | 1985-11-12 | Phillips Petroleum Company | Establishing a differential pressure across a core sample or calibrating a differential pressure transducer |
| CN101561378A (en) * | 2009-05-22 | 2009-10-21 | 清华大学 | Tester for testing seepage and scour characteristics of contact surface of soil body and structure |
| CN102839628A (en) * | 2012-09-06 | 2012-12-26 | 中国水利水电科学研究院 | Large-scale high-pressure cylinder permeation simulation device and method |
| CN103091214A (en) * | 2011-10-29 | 2013-05-08 | 成都理工大学 | Under-dam seepage flow experiment apparatus |
| CN204759883U (en) * | 2015-07-03 | 2015-11-11 | 中国电建集团贵阳勘测设计研究院有限公司 | Test model for simulating impervious curtain between concrete and bedrock |
-
2015
- 2015-07-03 CN CN201510384055.1A patent/CN105118363B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4552011A (en) * | 1982-09-28 | 1985-11-12 | Phillips Petroleum Company | Establishing a differential pressure across a core sample or calibrating a differential pressure transducer |
| CN101561378A (en) * | 2009-05-22 | 2009-10-21 | 清华大学 | Tester for testing seepage and scour characteristics of contact surface of soil body and structure |
| CN103091214A (en) * | 2011-10-29 | 2013-05-08 | 成都理工大学 | Under-dam seepage flow experiment apparatus |
| CN102839628A (en) * | 2012-09-06 | 2012-12-26 | 中国水利水电科学研究院 | Large-scale high-pressure cylinder permeation simulation device and method |
| CN204759883U (en) * | 2015-07-03 | 2015-11-11 | 中国电建集团贵阳勘测设计研究院有限公司 | Test model for simulating impervious curtain between concrete and bedrock |
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