CN109752246A - A kind of interior device for maintaining the high hydraulic pressure dynamic equilibrium of sample of pressure indoor - Google Patents
A kind of interior device for maintaining the high hydraulic pressure dynamic equilibrium of sample of pressure indoor Download PDFInfo
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- CN109752246A CN109752246A CN201910059587.6A CN201910059587A CN109752246A CN 109752246 A CN109752246 A CN 109752246A CN 201910059587 A CN201910059587 A CN 201910059587A CN 109752246 A CN109752246 A CN 109752246A
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Abstract
The present invention provides the devices that the high hydraulic pressure dynamic equilibrium of sample is maintained in a kind of pressure indoor.The device includes: interconnected pressure indoor, storage room and power house；Power house is connected by high-pressure rubber pipe with storage room, pressure indoor, and power house is entered the hydraulic pressure in storage room in pressure indoor by high pressure gas, and pressure gauge is connected by high-pressure rubber pipe with pressure indoor, storage room；Pressure indoor reaches specified confining pressure by the balance of water inlet and water outlet, high pressure sealing rubber sleeve is set in pressure indoor, sample is placed in high pressure sealing rubber sleeve, aperture is arranged in the inside of sample, Grouting Pipe is inserted into the aperture, inside slip casting by from Grouting Pipe to sample carries out slip casting splitting to sample.The device of the invention can be realized the dynamic equilibrium of the excessively high hydraulic pressure of clay fracturing process, and the soil body may be implemented not to be influenced in the overall process of test by internal grouting pressure, and to study, muddy water splitting phenomena provides experimental basis in the soil body under high hydraulic pressure.
Description
Technical field
The present invention relates to maintain the high hydraulic pressure dynamic equilibrium of sample in technical field of tunnel construction more particularly to a kind of pressure indoor
Device.
Background technique
Slurry shield, in order to guarantee the quality and engineering safety of construction, is needed through setting one when soft soil tunnel is constructed
The Water And Earth Pressures of fixed mud hydraulic pressure balance face, especially in Jiang Haizhong sections of drivings, since thickness of earth covering is typically small,
Hydraulic pressure is larger, and limit support pressure is difficult to determine, and when limit support pressure is bigger than normal, easily generation muddy water splitting causes to excavate
Face unstability is collapsed, the serious consequence of inwelling.The laboratory testing rig of research clay fracturing is primarily directed to low hydraulic pressure at present
Or the case where without hydraulic pressure, it is unable to satisfy the research of clay fracturing under high hydraulic pressure.For the problem that the soil body cleaves at high water pressures,
A kind of device and method that can maintain high hydraulic pressure dynamic equilibrium in pressure indoor is designed, can allow sample can in the overall process of sample
It maintains and is carried out under stable high hydraulic pressure, this is of great significance to the shield muddy water splitting phenomena research under high hydraulic pressure.
Summary of the invention
The embodiment provides the devices that the high hydraulic pressure dynamic equilibrium of sample is maintained in a kind of pressure indoor, existing to overcome
There is the problem of technology.
To achieve the goals above, this invention takes following technical solutions.
The device of the high hydraulic pressure dynamic equilibrium of sample is maintained in a kind of pressure indoor, comprising: interconnected pressure indoor, storage room
With power house；
The power house is connected by high-pressure rubber pipe with storage room, pressure indoor, and the power house will by high pressure gas
Hydraulic pressure in the storage room enters pressure indoor, and pressure gauge is connected by high-pressure rubber pipe with the pressure indoor, storage room；
The pressure indoor includes pressure indoor top plate, pressure indoor pedestal and pressure indoor side wall, passes through water inlet and water outlet
Balance reaches specified confining pressure, and high pressure sealing rubber sleeve is arranged in the pressure indoor, in the high pressure sealing rubber sleeve, described encloses
Sample is placed in the confined space that pressure chamber top plate and the pressure indoor pedestal are formed, aperture is arranged in the inside of sample, and Grouting Pipe is inserted
Enter in the aperture, the inside slip casting by Grouting Pipe to sample, slip casting splitting is carried out to sample.
Preferably, the device further includes axial load, and the axial load passes through the pressure indoor top plate and open pore steel plate
Connection applies axis pressure to sample by the open pore steel plate.
Preferably, high water pressure condition locating for the sample is in the high pressure sealing rubber sleeve, the pressure indoor top plate and institute
It states in the confined space of pressure indoor pedestal formation and keeps, the pressure indoor pedestal is equipped with high hydraulic pressure inlet valve, the confining pressure ceiling
Plate is equipped with overflow valve, and when the water pressure in confined space is more than specified pressure value, the overflow valve is automatically opened, until hydraulic pressure
Power is restored to specified pressure value.
Preferably, in the storage inside high pressure gas and water of the storage room, control is set in the lower end of the storage room
The liquid control valve of liquid disengaging, in the gas control valve of the upper end of storage room setting control gas disengaging.
Preferably, the power house includes high-pressure pump and pressure maintaining valve, and the gas in the high-pressure pump passes through pressure maintaining valve
After being decompressed to specified pressure value, inputted into storage room.
As can be seen from the technical scheme provided by the above-mentioned embodiment of the present invention, the device of the embodiment of the present invention can be realized
The soil body may be implemented in the overall process of test not by internal grouting pressure in the dynamic equilibrium of the excessively high hydraulic pressure of clay fracturing process
Influence, be able to maintain that and carried out under stable high hydraulic pressure, muddy water splitting phenomena provides test in the soil body under high hydraulic pressure to study
Basis.
The additional aspect of the present invention and advantage will be set forth in part in the description, these will become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill of field, without any creative labor, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of structure for the interior device for maintaining the high hydraulic pressure dynamic equilibrium of sample of pressure indoor that the embodiment of the present invention proposes
Figure, mainly include pressure indoor I, storage room II and power house III, wherein pressure indoor I include: sample 1, Grouting Pipe 2, pressure indoor into
The mouth of a river 3, pressure indoor apopore 4, pressure indoor top plate 5, pressure indoor pedestal 6, pressure indoor side wall 7, pressure indoor pull rod 8, axial load 9,
Overflow valve 10, open pore steel plate 11, sealing rubber cover 12, inlet valve 13, high-pressure rubber pipe 14, storage room II include pressure gauge 15, liquid
Body control valve 16, water 17, high pressure gas 18, gas control valve 19, power house III include pressure maintaining valve 20 and high-pressure pump 21.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and for explaining only the invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singular " one " used herein, " one
It is a ", " described " and "the" may also comprise plural form.It is to be further understood that being arranged used in specification of the invention
Diction " comprising " refer to that there are the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or addition
Other one or more features, integer, step, operation, element, component and/or their group.It should be understood that when we claim member
Part is " connected " or when " coupled " to another element, it can be directly connected or coupled to other elements, or there may also be
Intermediary element.In addition, " connection " used herein or " coupling " may include being wirelessly connected or coupling.Wording used herein
"and/or" includes one or more associated any cells for listing item and all combinations.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific term) there is meaning identical with the general understanding of those of ordinary skill in fields of the present invention.Should also
Understand, those terms such as defined in the general dictionary, which should be understood that, to be had and the meaning in the context of the prior art
The consistent meaning of justice, and unless defined as here, it will not be explained in an idealized or overly formal meaning.
In order to facilitate understanding of embodiments of the present invention, it is done by taking several specific embodiments as an example below in conjunction with attached drawing further
Explanation, and each embodiment does not constitute the restriction to the embodiment of the present invention.
The embodiment of the present invention proposes the device that the high hydraulic pressure dynamic equilibrium of sample is maintained in a kind of pressure indoor, which can be with
Realize the soil body do not influenced by internal grouting pressure in the overall process of test, be able to maintain that under stable high hydraulic pressure into
Row, to study, muddy water splitting phenomena provides experimental basis in the soil body under high hydraulic pressure.
Structure chart such as Fig. 1 institute of the device of the high hydraulic pressure dynamic equilibrium of sample is maintained in the pressure indoor that the embodiment of the present invention proposes
Show, which includes: interconnected pressure indoor I, storage room II and power house III.
The power house III is connected by high-pressure rubber pipe 14 with storage room II, pressure indoor I, and the power house III passes through
The hydraulic pressure stored in the storage room II is entered the pressure indoor I by high pressure gas 18, and pressure gauge 15 is passed through high-pressure rubber pipe and institute
State pressure indoor, storage room is connected, for monitor indentation pressure indoor I in water pressure.
High pressure sealing rubber sleeve 12 is set in the pressure indoor, in the high pressure sealing rubber sleeve 12 and the pressure indoor
Soil body sample 1 is placed in the confined space that top plate 5 and pressure indoor pedestal 6 are formed.The pressure indoor passes through water inlet 3 and water outlet
4 balance reaches specified confining pressure, and axial load 9 passes through the pressure indoor top plate 5 and connect with open pore steel plate 11, passes through the aperture steel
Plate 11 applies axis pressure to sample.Aperture is arranged in the inside of sample 1, and Grouting Pipe 2 is inserted into the aperture, by Grouting Pipe 2 to sample 1
Inside slip casting, to sample carry out slip casting splitting.High water pressure condition is in high pressure sealing rubber sleeve 12 and the confining pressure locating for sample 1
It is kept in the confined space that ceiling plate 5 and pressure indoor pedestal 6 are formed, the pressure indoor pedestal 6 is equipped with high hydraulic pressure inlet valve 13, institute
Pressure indoor top plate 5 is stated equipped with overflow valve 10.When the pressure in confined space is more than specified pressure value, overflow valve 10 can be beaten automatically
It opens, until water pressure is restored to specified pressure value.
The pressure gauge 15 is connected by high-pressure rubber pipe 14 with pressure indoor and storage room, is guaranteed from storage room to pressure indoor
The water pressure invariableness of input is designated value.
The storage room II storage inside high pressure gas 18 and water 17, the storage room lower end setting control liquid into
Liquid control valve 16 out, in the gas control valve 19 of the upper end of storage room setting control gas disengaging.
The power house III is connected by high-pressure rubber pipe 14 with storage room, mainly includes high-pressure pump 21 and pressure maintaining valve
20, after the gas in the high-pressure pump is decompressed to specified pressure value by pressure maintaining valve 20, inputted into storage room II.
When it is implemented, maintaining using for the device of the high hydraulic pressure dynamic equilibrium of sample in above-mentioned pressure indoor shown in FIG. 1
Journey includes:
1. opening the pressure maintaining valve connecting with high-pressure pump when confining pressure and internal grouting pressure reach balance.
2. noticing that the reading of pressure gauge 15 does not exceed specified hydraulic pressure value.
3. until the open pore steel plate top in pressure indoor at the top of high pressure sealing rubber sleeve is completely filled with water, and pressure gauge 15
When reading keeps stablizing, start to carry out diametral compression test.
Those of ordinary skill in the art will appreciate that: attached drawing is the schematic diagram of one embodiment, module in attached drawing or
Process is not necessarily implemented necessary to the present invention.
In conclusion the device of the embodiment of the present invention can be realized the dynamic equilibrium of the excessively high hydraulic pressure of clay fracturing process, it can
To realize that the soil body is not influenced in the overall process of test by internal grouting pressure, be able to maintain that under stable high hydraulic pressure into
Row, to study, muddy water splitting phenomena provides experimental basis in the soil body under high hydraulic pressure.
The present invention realizes the splitting of the soil body under high hydraulic pressure, solves and studies under high hydraulic pressure splitting phenomena hand in the soil body at present
The deficient problem of section provides testing equipment to study clay fracturing phenomenon under high hydraulic pressure.Realization principle is simple, step is clear.
All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for device or
For system embodiment, since it is substantially similar to the method embodiment, so describing fairly simple, related place is referring to method
The part of embodiment illustrates.Apparatus and system embodiment described above is only schematical, wherein the conduct
The unit of separate part description may or may not be physically separated, component shown as a unit can be or
Person may not be physical unit, it can and it is in one place, or may be distributed over multiple network units.It can root
According to actual need that some or all of the modules therein is selected to achieve the purpose of the solution of this embodiment.Ordinary skill
Personnel can understand and implement without creative efforts.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of protection of the claims
Subject to.
Claims (5)
1. maintaining the device of the high hydraulic pressure dynamic equilibrium of sample in a kind of pressure indoor characterized by comprising interconnected confining pressure
Room, storage room and power house；
The power house is connected by high-pressure rubber pipe with storage room, pressure indoor, and the power house will be described by high pressure gas
Hydraulic pressure in storage room enters pressure indoor, and pressure gauge is connected by high-pressure rubber pipe with the pressure indoor, storage room；
The pressure indoor includes pressure indoor top plate, pressure indoor pedestal and pressure indoor side wall, passes through the balance of water inlet and water outlet
Reach specified confining pressure, high pressure sealing rubber sleeve is set in the pressure indoor, in the high pressure sealing rubber sleeve, the pressure indoor
Sample is placed in the confined space that top plate and the pressure indoor pedestal are formed, aperture is arranged in the inside of sample, and Grouting Pipe insertion should
In aperture, inside slip casting by from Grouting Pipe to sample carries out slip casting splitting to sample.
2. the apparatus according to claim 1, which is characterized in that the device further includes axial load, and the axial load is worn
It crosses the pressure indoor top plate to connect with open pore steel plate, axis pressure is applied to sample by the open pore steel plate.
3. the apparatus of claim 2, which is characterized in that high water pressure condition is in the high pressure sealing locating for the sample
It is kept in the confined space that rubber sleeve, the pressure indoor top plate and the pressure indoor pedestal are formed, the pressure indoor pedestal is equipped with
High hydraulic pressure inlet valve, the pressure indoor top plate are equipped with overflow valve, when the water pressure in confined space is more than specified pressure value, institute
It states overflow valve to automatically open, until water pressure is restored to specified pressure value.
4. device according to claim 3, which is characterized in that in the storage inside high pressure gas and water of the storage room,
In the liquid control valve of the lower end of storage room setting control liquid disengaging, in the upper end of storage room setting control gas
The gas control valve of disengaging.
5. device according to claim 4, which is characterized in that the power house includes high-pressure pump and pressure maintaining valve, described
After gas in high-pressure pump is decompressed to specified pressure value by pressure maintaining valve, inputted into storage room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910059587.6A CN109752246A (en) | 2019-01-22 | 2019-01-22 | A kind of interior device for maintaining the high hydraulic pressure dynamic equilibrium of sample of pressure indoor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910059587.6A CN109752246A (en) | 2019-01-22 | 2019-01-22 | A kind of interior device for maintaining the high hydraulic pressure dynamic equilibrium of sample of pressure indoor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111006951A (en) * | 2019-11-14 | 2020-04-14 | 湖南大学 | Indoor grouting test device and simulated grouting test method |
| CN111238919A (en) * | 2020-02-25 | 2020-06-05 | 蓝箭航天技术有限公司 | Double-medium pressure test device |
| CN113176161A (en) * | 2021-04-02 | 2021-07-27 | 东南大学 | Large-size coarse and loose particle resilience modulus testing device considering different depth confining pressures |
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| CN102419303A (en) * | 2011-08-15 | 2012-04-18 | 山东科技大学 | Crack grouting visualization tester under complex conditions |
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| CN109211736A (en) * | 2018-10-31 | 2019-01-15 | 成都理工大学 | The test method of sandy pear variety slip casting dilation angle under a kind of simulation circumstance of flowing water |
| CN209673553U (en) * | 2019-01-22 | 2019-11-22 | 北京交通大学 | A kind of interior device for maintaining the high hydraulic pressure dynamic equilibrium of sample of pressure indoor |
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Patent Citations (7)
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| CN102419303A (en) * | 2011-08-15 | 2012-04-18 | 山东科技大学 | Crack grouting visualization tester under complex conditions |
| CN102928298A (en) * | 2012-11-13 | 2013-02-13 | 中国水电顾问集团中南勘测设计研究院 | Earth and rockfill dam core wall hydraulic fracture test device |
| CN103389249A (en) * | 2013-07-18 | 2013-11-13 | 河海大学 | Device and method for clay core wall hydraulic fracturing experiments |
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| CN208076285U (en) * | 2018-04-28 | 2018-11-09 | 西安建筑科技大学 | A kind of test flume equipment of infiltration fracture grouting |
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| CN209673553U (en) * | 2019-01-22 | 2019-11-22 | 北京交通大学 | A kind of interior device for maintaining the high hydraulic pressure dynamic equilibrium of sample of pressure indoor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111006951A (en) * | 2019-11-14 | 2020-04-14 | 湖南大学 | Indoor grouting test device and simulated grouting test method |
| CN111238919A (en) * | 2020-02-25 | 2020-06-05 | 蓝箭航天技术有限公司 | Double-medium pressure test device |
| CN113176161A (en) * | 2021-04-02 | 2021-07-27 | 东南大学 | Large-size coarse and loose particle resilience modulus testing device considering different depth confining pressures |
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