CN211477787U - Soft disturbed belt manual sample preparation device - Google Patents
Soft disturbed belt manual sample preparation device Download PDFInfo
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- CN211477787U CN211477787U CN201921985013.3U CN201921985013U CN211477787U CN 211477787 U CN211477787 U CN 211477787U CN 201921985013 U CN201921985013 U CN 201921985013U CN 211477787 U CN211477787 U CN 211477787U
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Abstract
The utility model provides an artifical system appearance device in weak dislocation area, the artifical system appearance device in weak dislocation area includes pressure device and fills the room, fill the indoor packing material that is equipped with hanging wall joint rock mass and lower wall joint rock mass and fills in the inner space that fills the room, pressure device and fill and be equipped with the gas-supply pipe between the room, be equipped with breather valve and manometer on the gas-supply pipe in proper order from pressure device's one end to the one end that fills the room between. The utility model provides an on-the-spot because the excavation disturbance is difficult to acquire the difficult problem of initial rock specimen to can carry out artifical preparation to the weak intermediate layer of different thickness, different intensity, different roughness, the experimental repeatable operation nature in different filling material dislocation zone has been realized, on-the-spot sample and system appearance expense have been saved, the autonomic simulation to different filling materials has been realized, the at utmost has really reflected the material composition and the mechanical properties in dislocation zone between on-the-spot normal position layer, provide reliable foundation for engineering safety evaluation.
Description
Technical Field
The utility model relates to a geotechnical engineering that meets with weak dislocation area among underground works, the side slope engineering in fields such as water conservancy water and electricity, traffic especially relates to an artifical system appearance device in soft dislocation area.
Background
The interlaminar dislocation zone is a completely argillized interlayer which is loose in structure and weak in inter-granular connection and is sandwiched in a hard rock stratum, and is a permanent deformation trace which is left by the historical regional tectonic movement along a plurality of parallel weak layers in a stratified rock body under the shearing action and has different thicknesses and different intervals. Due to the wide distribution and the size which is far larger than the size of the rock engineering structure. Therefore, the rock engineering structure is often affected by the interbedded dislocation zone. The universality of the interbedded dislocation zone brings a great deal of rock instability and natural disasters to many countries in the world. For example, 11 interbedded dislocation zones are developed in the dam site area of the white crane beach hydropower station and the underground cavern group, the interbedded zones penetrate through the underground cavern groups of the left bank and the right bank, and the interbedded zones are poor in physical and mechanical properties and filled with soft and weak substances, so that after the large underground cavern group is excavated, the loose depth and large deformation area of rock mass are increased due to the dislocation of upper and lower plates of the interbedded zones, and the integral stability characteristic of the cavern is influenced.
The factors influencing the shearing mechanical property of the interlaminar dislocation band are more, mainly comprise the factors of particle size, interlayer thickness, joint surface roughness, water content, normal force and the like, and influence the shearing mechanical property of the interlaminar dislocation band to different degrees. Meanwhile, when a shearing mechanical test of the interlaminar dislocation band is carried out, the fact that the interlaminar dislocation band is interfered by various influence factors is found, the discreteness of test data is large, the shearing mechanical parameters of different interlaminar bands are difficult to obtain, even the interlaminar dislocation bands of the same group are different in properties, fillers and the like when different caverns are exposed, the deformation magnitude of the interlaminar dislocation bands can be greatly influenced by the change of the mechanical properties of the interlaminar dislocation bands, and therefore, the mechanical properties of the interlaminar dislocation bands made of different filling materials need to be researched.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a soft dislocation area manual work system appearance device to the not enough of existence among the prior art.
To this end, the above object of the present invention is achieved by the following technical solutions:
the utility model provides a soft dislocation area manual work system appearance device which characterized in that: the artificial sample preparation device for the weak dislocation zone comprises a pressure device and a filling chamber, wherein an upper disc joint rock body, a lower disc joint rock body and a filling material filled in the inner space of the filling chamber are arranged in the filling chamber, a gas conveying pipe is arranged between the pressure device and the filling chamber, and a vent valve and a pressure gauge are sequentially arranged on the gas conveying pipe from one end of the pressure device to one end of the filling chamber.
When adopting above-mentioned technical scheme, the utility model discloses can also adopt or make up and adopt following technical scheme:
as the utility model discloses a preferred technical scheme: the pressure device is a gas storage bottle.
As the utility model discloses a preferred technical scheme: the filling chamber comprises a steel plate and a bolt, and the steel plate and the bolt form a closed space of the filling chamber.
As the utility model discloses a preferred technical scheme: the junction of steel sheet is equipped with and fills silica gel in order to guarantee to fill indoor atmospheric pressure seal.
The utility model provides a soft dislocation area manual work system appearance device, the difficult problem of initial rock specimen is difficult to obtain owing to the excavation disturbance in the scene of having solved, and can be to different thickness, different intensity, the soft intermediate layer of different roughness carries out artifical preparation, the experimental repeatable operation nature in different filling material dislocation areas has been realized, on-the-spot sample and system appearance expense have been saved, the autonomic simulation to different filling material has been realized, the at utmost true material composition and the mechanical properties who has reflected on-the-spot normal position interbedded dislocation area, provide reliable foundation for engineering safety evaluation.
Drawings
Fig. 1 is a schematic view of a soft disturbed belt manual sample preparation device provided by the present invention;
in the figure: 1-a pressure device; 2-a filling chamber; 201-steel plate; 202-bolt; 3-gas pipe; 301-a vent valve; 302-pressure gauge; 401-hanging the jointed rock mass; 402-footwall jointed rock mass; 403-filling material.
Detailed Description
The invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
A soft disturbed belt manual sample preparation device comprises a pressure device 1 and a filling chamber 2, wherein an upper disc jointed rock body 401, a lower disc jointed rock body 402 and filling materials 403 filled in the inner space of the filling chamber 2 are arranged in the filling chamber 2, a gas transmission pipe 3 is arranged between the pressure device 1 and the filling chamber 2, and a vent valve 301 and a pressure gauge 302 are sequentially arranged on the gas transmission pipe 3 from one end of the pressure device 1 to one end of the filling chamber 2.
In the present embodiment, the pressure device 1 is a gas cylinder filled with compressed nitrogen.
In the present embodiment, the filling chamber 2 includes a steel plate 201 and bolts 202, and the steel plate 201 and the bolts 202 form a closed space of the filling chamber 2.
In this embodiment, the joint of the steel plate 201 is provided with a filling silica gel to ensure the air pressure tightness in the filling chamber 2.
The soft disturbed belt manual sample preparation device performs sample preparation operation through the following steps:
(1) sampling
Selecting a part with good construction conditions and rock mass conditions for drilling and coring, wherein in the drilling process of a small-sized water drilling machine or a heavy geological drilling machine, because a drilling barrel and a rock mass generate heat through friction, water needs to be continuously added for cooling and lubricating, a rock sample in the drilling barrel rotates and disturbs in the water adding process, weak fillers in the rock sample are washed away, and only upper and lower disc jointed rock masses and mud chips are left finally;
after the rock sample is taken out, washing mud chips in the rock sample by using a high-pressure water gun to separate the upper and lower jointed rock bodies;
the sample size is 150 mm x 150 mm and these rock samples are preferably taken from the same location to ensure uniformity of mechanical properties; in addition, the rock sample is also preferably taken from the vicinity of the tunnel face to ensure that it is not affected by weathering;
(2) sample preparation
The pressure device is a gas storage bottle filled with compressed nitrogen, and can provide stable air pressure in the filling process so as to ensure the filling compactness;
the filling material is mainly prepared by cement and water according to a certain proportion, and the strength grade and the proportion of the cement are mainly prepared according to the argillization degree of filling substances in the site interlaminar dislocation zone; the strength of the cement adopted in the embodiment is 42.5MPa, and the water is respectively prepared according to the proportion of 0.5:1, 0.6:1 and 0.7: 1;
filling materials are firstly required to be completely stirred in a stirrer, then the lower disc jointed rock mass is placed into a filling chamber, the filling materials are injected into the filling chamber, the upper disc jointed rock mass is placed when the filling materials submerge the lower disc jointed rock mass and reach a preset height, and then the filling materials are continuously poured until the upper disc jointed rock mass is submerged;
a steel plate and a bolt are adopted to seal the filling chamber, a vent valve is opened, high-pressure gas is injected into the filling chamber, so that filling materials enter a pore between the upper disc and the lower disc, and the effect of further compacting is achieved; in the process, the pressure is kept at 0.5-1 MPa for about 0.5-1 hour;
after filling, taking out the sample, and maintaining for 28 days;
because the interlaminar dislocation band mainly inspects the shearing mechanical characteristics, the shearing damage mainly occurs in the weak filling materials, after the shearing damage, the upper and lower disc jointed rock bodies can be continuously utilized for re-filling, and the implementation steps are repeated, so that the dislocation bands made of different filling materials can be realized, and the requirements of test tests can be met.
The utility model provides a soft dislocation area manual work system appearance device, the difficult problem of initial rock specimen is difficult to obtain owing to the excavation disturbance in the scene of having solved, and can be to different thickness, different intensity, the soft intermediate layer of different roughness carries out artifical preparation, the experimental repeatable operation nature in different filling material dislocation areas has been realized, on-the-spot sample and system appearance expense have been saved, the autonomic simulation to different filling material has been realized, the at utmost true material composition and the mechanical properties who has reflected on-the-spot normal position interbedded dislocation area, provide reliable foundation for engineering safety evaluation.
The above detailed description is provided for explaining the present invention, and is only a preferred embodiment of the present invention, but not for limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made by the present invention are within the scope of the present invention.
Claims (4)
1. The utility model provides a soft dislocation area manual work system appearance device which characterized in that: the artificial sample preparation device for the weak dislocation zone comprises a pressure device and a filling chamber, wherein an upper disc joint rock body, a lower disc joint rock body and a filling material filled in the inner space of the filling chamber are arranged in the filling chamber, a gas conveying pipe is arranged between the pressure device and the filling chamber, and a vent valve and a pressure gauge are sequentially arranged on the gas conveying pipe from one end of the pressure device to one end of the filling chamber.
2. The soft disturbed belt artificial sample preparation device according to claim 1, characterized in that: the pressure device is a gas storage bottle.
3. The soft disturbed belt artificial sample preparation device according to claim 1, characterized in that: the filling chamber comprises a steel plate and a bolt, and the steel plate and the bolt form a closed space of the filling chamber.
4. The soft disturbed belt artificial sample preparation device according to claim 3, wherein: the junction of steel sheet is equipped with and fills silica gel in order to guarantee to fill indoor atmospheric pressure seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921985013.3U CN211477787U (en) | 2019-11-18 | 2019-11-18 | Soft disturbed belt manual sample preparation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921985013.3U CN211477787U (en) | 2019-11-18 | 2019-11-18 | Soft disturbed belt manual sample preparation device |
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| Publication Number | Publication Date |
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| CN211477787U true CN211477787U (en) | 2020-09-11 |
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| CN201921985013.3U Active CN211477787U (en) | 2019-11-18 | 2019-11-18 | Soft disturbed belt manual sample preparation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987555A (en) * | 2019-11-18 | 2020-04-10 | 中国电建集团华东勘测设计研究院有限公司 | Soft disturbed belt manual sample preparation device and method |
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2019
- 2019-11-18 CN CN201921985013.3U patent/CN211477787U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987555A (en) * | 2019-11-18 | 2020-04-10 | 中国电建集团华东勘测设计研究院有限公司 | Soft disturbed belt manual sample preparation device and method |
| CN110987555B (en) * | 2019-11-18 | 2022-08-05 | 中国电建集团华东勘测设计研究院有限公司 | Soft disturbed belt manual sample preparation device and method |
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