CN107884246A - Solution cavity preparation method in a kind of geomechanical model test - Google Patents
Solution cavity preparation method in a kind of geomechanical model test Download PDFInfo
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- CN107884246A CN107884246A CN201711376228.0A CN201711376228A CN107884246A CN 107884246 A CN107884246 A CN 107884246A CN 201711376228 A CN201711376228 A CN 201711376228A CN 107884246 A CN107884246 A CN 107884246A
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- solution cavity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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Abstract
The present invention relates to solution cavity preparation method in a kind of geomechanical model test, this method mainly pre-buried realizes different shapes and sizes in geomechanical model test body, the automatic forming of position solution cavity by the way that ice body is prefabricated.Design is required according to required solution cavity geomery and make solution cavity mould first with mold materials；Clear water is then injected into, and is placed on carrying out freeze forming during freezing is set, after its freeze forming, form removal, which is taken out, can obtain solution cavity ice body model；Prefabricated ice body model surface is uniformly then smeared into vaseline；The ice body model made finally is embedded into test body specified location, the geomechanical model test body of built-in solution cavity is can obtain after its thawing.Solve the problem tested in geomechanical model test and put solution cavity in vivo, by prefabricated pre-buried ice body, the characteristic to be disappeared using its freeze forming, thawing, realize solution cavity built in fast simple making in geomechanical model test.
Description
Technical field
The invention belongs to geomechanical model test field, refers specifically to pour using mould in Geo-Mechanical Model Test Process
Ice body model is built and test body of nuzzling in advance, so as to realize the method for solution cavity automatic forming built in test body.
Background technology
Geomechanical model test is one of important research method in geotechnical study field, is referred to based on certain phase
A kind of physical simulating method for carrying out reduced scale research is constructed to a certain engineering geology like principle.In China, Geotechnical Engineering is built at this stage
If in, geomechanical model test can provide more intuitively physical phenomenon simulation, can not only disclose engineering construction to rock
The affecting laws of soil body stability, it can more disclose affecting laws of the geological structure to engineering excavation.And recently as examination
Test the raising of measurement technology, some research topics in geomechanical model test, enter quantitative point by the qualitative analysis stage
The stage of analysis.Wherein, how the complicated geological structure of real simulation, the accuracy of geomechanical model test is proposed higher
Requirement.
The content of the invention
The technical problem to be solved in the present invention is in geomechanical model test, and how rapidly and efficiently solution cavity built in test body
Shaping.The present invention proposes solution cavity preparation method in a kind of geomechanical model test, and this method is mainly prefabricated pre- by ice body
Bury and realize different shapes and sizes in geomechanical model test body, the automatic forming of position solution cavity.
To achieve the above object, technical solution of the present invention is as follows：
Solution cavity preparation method, comprises the following steps in a kind of geomechanical model test：
Step 1 makes ice body mould according to the shape of solution cavity；
Step 2 injects liquid in described ice body mould, and the ice body mould for injecting liquid is placed on into freezing equipment
In；
Step 3 hard ice body model to be formed, form removal obtain prefabricated solution cavity model；
Step 4 smears protective layer outside obtained prefabricated solution cavity model；It is then placed within the specified location of test body；It is and fast
Speed is in prefabricated solution cavity model overlying test body to fill compacting, and solution cavity caves in after melting to prevent ice body, after waiting ice body all to melt,
Water penetrates test body under gravity, that is, obtains the geomechanical model test body of built-in solution cavity cavity.
Further, the ice body mould described in step 1 includes upper die and lower die, and described upper die and lower die pass through connection
Part is connected, and sealing ring is provided with its connected position；Liquid injection pipe is provided with upper mould.
Further, the link position of described upper die and lower die is provided with otic placode, and the otic placode is one by bolt connection
Rise and form mould cavity.
Protective layer described in the step 3 is damaged, and weaken in operation to smear vaseline with reducing ice body
Contact of the ice body with air, so as to weaken the speed of its thawing.
The freezing equipment includes but is not limited to refrigerator, freezer.
Further, being in step 1 will according to solution cavity geomery using Metal mould material or nonmetal mould material
Ask, design and make ice body and pour mould, the mould not only has good sealing, while also there is higher shaping to imitate
Rate, and it is easy to operate, shell is firm, is not in deformation and failure at low temperature.
Further, described liquid can freeze below zero degrees celsius.
Beneficial effects of the present invention are as follows：
The present invention relates to solution cavity preparation method in a kind of geomechanical model test, this method are mainly prefabricated pre- by ice body
Bury and realize different shapes and sizes in geomechanical model test body, the automatic forming of position solution cavity.First, mold materials are utilized
Require to design and make solution cavity mould according to required solution cavity geomery；Clear water is then injected into, and is placed on freezing and sets
Middle carry out freeze forming, after its freeze forming, form removal, which is taken out, can obtain solution cavity ice body model；Then by prefabricated ice body
Model surface uniformly smears vaseline；The ice body model made finally is embedded into test body specified location, after its thawing
It can obtain the geomechanical model test body of built-in solution cavity.The present invention have studied solution cavity in a kind of geomechanical model test
Preparation method, solve the problem tested in geomechanical model test and put solution cavity in vivo, by prefabricated pre-buried ice body, utilize it
Freeze forming, melt the characteristic to disappear, realize solution cavity built in fast simple making in geomechanical model test.Ground with forefathers
Study carefully and compare, the invention is easy to operate, green, has preferable application prospect.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its illustrate be used for explain the application, do not form the improper restriction to the application.
Fig. 1 is solution cavity ice body mould schematic diagram provided by the invention.
Fig. 2 is solution cavity ice body model schematic provided by the invention.
Fig. 3 is the pre-buried shaping schematic diagram of solution cavity ice body model provided by the invention.
In figure：1- liquid injection pipes, 2- cope plates, 3- otic placodes, 4- lower templates, 5- sealing rings, 6- bolts, 7- mould cavities, 8-
Solution cavity ice body model, 9- test body, solution cavity cavity built in 10- test body.
Embodiment
It is noted that described further below is all exemplary, it is intended to provides further instruction to the application.It is unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
As background technology is introduced, and recently as the raising of experiment measurement technology, geomechanics model examination
Some research topics in testing, enter the stage of quantitative analysis by the qualitative analysis stage.Wherein, how real simulation is complicated
Geological structure, higher requirement is proposed to the accuracy of geomechanical model test, in order to solve technical problem as above, because
This, the present invention proposes solution cavity preparation method in a kind of geomechanical model test, and it is applied into geomechanical model test
In, achieve preferable application effect.
In a kind of typical embodiment of the application, as shown in Figures 1 to 3, solution cavity in a kind of geomechanical model test
Preparation method, comprise the following steps：
1) as shown in figure 1, using Metal mould material or nonmetal mould material according to the requirement of solution cavity geomery, design
And make ice body and pour mould, the mould is mainly made up of cope plate 2 and lower template 3, and the otic placode 3 of bolster seam crossing leans on spiral shell
Bolt 6 is connected, and seam crossing is sealed using rubber seal 5, to prevent leak-stopping water.The mould not only has good sealing,
Also there is higher shaping efficiency simultaneously, and it is easy to operate, shell is firm, is not in deformation and failure at low temperature.
Cope plate and lower template are shaped as hemispherical in Fig. 1, and spherical structure is formed when combining；Cope plate and
Lower template can also be designed to other shapes according to the actual needs.
2) as shown in figure 1, after the completion of Mold Making and assembling, using liquid injection pipe 1, by clear water, (clear water is optimal choosing
Select) injection mould, it is careful not to fill, in order to avoid clear water solidification freezing process volume changes, causes mould stress excessive.With
The mould of water filling is positioned in the freezing equipments such as refrigerator, freezer afterwards and carries out freeze forming, is formed after 48 hours more hard
Ice body, form removal can obtain prefabricated spherical solution cavity ice body model.
3) as shown in Fig. 2 the prefabricated spherical surface of solution cavity ice body model 8 is uniformly smeared into vaseline, to reduce ice body
It is damaged in operation, and weakens contact of the ice body with air, so as to weakens the speed of its thawing.
4) as shown in figure 3, the spherical solution cavity ice body model made is embedded into the specified location of test body 9, and rapidly by ice
Body overlying test body fills compacting, and solution cavity caves in after melting to prevent ice body, and after waiting ice body all to melt, water oozes under gravity
Test body is appeared, that is, obtains the geomechanical model test body of built-in solution cavity cavity 10.
The preferred embodiment of the application is the foregoing is only, is not limited to the application, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.
Claims (7)
1. solution cavity preparation method in a kind of geomechanical model test, it is characterised in that comprise the following steps：
Step 1 makes ice body mould according to the shape of solution cavity；
Step 2 injects liquid in described ice body mould, and the ice body mould for injecting liquid is placed in freezing equipment；
Step 3 hard ice body model to be formed, form removal obtain prefabricated solution cavity model；
Step 4 smears protective layer outside obtained prefabricated solution cavity model；It is then placed within the specified location of test body；And exist rapidly
Prefabricated solution cavity model overlying test body is to fill compacting, and solution cavity caves in after melting to prevent ice body, and after waiting ice body all to melt, water exists
Test body is penetrated under Action of Gravity Field, that is, obtains the geomechanical model test body of built-in solution cavity cavity.
2. solution cavity preparation method in geomechanical model test as claimed in claim 1, it is characterised in that be profit in step 1
With Metal mould material or nonmetal mould material according to the requirement of solution cavity geomery, design and make ice body and pour mould；Should
Mold shell is firm, is not in deformation and failure at low temperature.
3. solution cavity preparation method in geomechanical model test as claimed in claim 2, it is characterised in that described in step 1
Ice body mould include upper die and lower die, described upper die and lower die are connected by connector, its connected position be provided with it is close
Seal；Liquid injection pipe is provided with upper mould.
4. solution cavity preparation method in geomechanical model test as claimed in claim 3, it is characterised in that described upper mould and
The link position of lower mould is provided with otic placode, and the otic placode is to form mould cavity together by bolt connection.
5. solution cavity preparation method in geomechanical model test as claimed in claim 1, it is characterised in that in the step 3
Described protective layer is smearing vaseline.
6. solution cavity preparation method in geomechanical model test as claimed in claim 1, it is characterised in that the freezing equipment
Including but not limited to refrigerator, freezer.
7. solution cavity preparation method in geomechanical model test as claimed in claim 1, it is characterised in that described liquid exists
It can be frozen below zero degrees celsius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711376228.0A CN107884246A (en) | 2017-12-19 | 2017-12-19 | Solution cavity preparation method in a kind of geomechanical model test |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711376228.0A CN107884246A (en) | 2017-12-19 | 2017-12-19 | Solution cavity preparation method in a kind of geomechanical model test |
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| CN107884246A true CN107884246A (en) | 2018-04-06 |
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| CN201711376228.0A Pending CN107884246A (en) | 2017-12-19 | 2017-12-19 | Solution cavity preparation method in a kind of geomechanical model test |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357921A (en) * | 2018-10-10 | 2019-02-19 | 成都理工大学 | A kind of fracture hole oil reservoir Artificial Core Making method that parameter is controllable |
| CN110470522A (en) * | 2019-09-19 | 2019-11-19 | 东北大学 | A kind of method of prefabricated different water cut saturation degree rock mass of fracture network sample |
| CN111089766A (en) * | 2019-12-11 | 2020-05-01 | 重庆大学 | Random closed cavity manufacturing equipment and method based on soluble cavity salt block |
| CN111220444A (en) * | 2020-01-17 | 2020-06-02 | 中国地质大学（武汉） | Method for preparing concealed water-containing body |
| CN111739397A (en) * | 2020-07-31 | 2020-10-02 | 湖北工业大学 | Preparation method of multi-solution-cavity geological model |
| CN113376354A (en) * | 2020-02-25 | 2021-09-10 | 中国石油化工股份有限公司 | Method for simulating karst caves in different filling states and physical simulation test system |
| CN114544335A (en) * | 2020-11-24 | 2022-05-27 | 中国石油化工股份有限公司 | Method for evaluating circular seam hole-finding reconstruction experiment |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357921A (en) * | 2018-10-10 | 2019-02-19 | 成都理工大学 | A kind of fracture hole oil reservoir Artificial Core Making method that parameter is controllable |
| CN110470522A (en) * | 2019-09-19 | 2019-11-19 | 东北大学 | A kind of method of prefabricated different water cut saturation degree rock mass of fracture network sample |
| CN110470522B (en) * | 2019-09-19 | 2020-10-30 | 东北大学 | Method for prefabricating fracture network rock mass samples with different water saturation degrees |
| CN111089766A (en) * | 2019-12-11 | 2020-05-01 | 重庆大学 | Random closed cavity manufacturing equipment and method based on soluble cavity salt block |
| CN111089766B (en) * | 2019-12-11 | 2023-03-10 | 重庆大学 | Random closed cavity manufacturing equipment and method based on soluble cavity salt block |
| CN111220444A (en) * | 2020-01-17 | 2020-06-02 | 中国地质大学（武汉） | Method for preparing concealed water-containing body |
| CN113376354A (en) * | 2020-02-25 | 2021-09-10 | 中国石油化工股份有限公司 | Method for simulating karst caves in different filling states and physical simulation test system |
| CN111739397A (en) * | 2020-07-31 | 2020-10-02 | 湖北工业大学 | Preparation method of multi-solution-cavity geological model |
| CN114544335A (en) * | 2020-11-24 | 2022-05-27 | 中国石油化工股份有限公司 | Method for evaluating circular seam hole-finding reconstruction experiment |
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Application publication date: 20180406 |