CN113188958A - Fracture overflowing device and fracture seepage visual test system - Google Patents
Fracture overflowing device and fracture seepage visual test system Download PDFInfo
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- 238000012360 testing method Methods 0.000 title description 12
- 230000000007 visual effect Effects 0.000 title description 9
- 238000007789 sealing Methods 0.000 claims abstract description 42
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 238000002474 experimental method Methods 0.000 claims abstract description 5
- 238000012800 visualization Methods 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 24
- 238000001179 sorption measurement Methods 0.000 claims description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims 2
- 239000011435 rock Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 230000003204 osmotic effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000012945 sealing adhesive Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
- G01N13/04—Investigating osmotic effects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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Abstract
本发明提供一种裂隙过流装置，涉及裂隙岩体渗流技术领域；裂隙过流装置包括：固定框、侧板、第一连接块、第二连接块、底板、盖板、第一透明夹板、第二透明夹板和裂隙样品；固定框的侧壁上分别设置有第二紧固螺栓和第三紧固螺栓；侧板分别设置在裂隙样品的前后两侧；裂隙样品与侧板之间设置第一密封胶片；第一连接块上设置有第一凹槽、进液孔和第一排气孔；第二连接块上设置有第二凹槽、排液孔和第二排气孔；第一连接块和第二连接块与裂隙样品之间分别设置有第二密封胶片；第一透明夹板设置在底板上；第二透明夹板设置在盖板上；底板和盖板之间设置有第一紧固螺栓；本发明还提出一种裂隙渗流可视化实验系统，方便更换裂隙样品，且密封效果好。
The invention provides a fissure over-current device, which relates to the technical field of seepage of fissure rock mass; The second transparent splint and the crack sample; the side walls of the fixing frame are respectively provided with a second fastening bolt and a third fastening bolt; the side plates are respectively arranged on the front and rear sides of the crack sample; a sealing film; the first connecting block is provided with a first groove, a liquid inlet hole and a first exhaust hole; the second connecting block is provided with a second groove, a liquid discharge hole and a second exhaust hole; the first A second sealing film is respectively arranged between the connection block and the second connection block and the crack sample; the first transparent splint is arranged on the bottom plate; the second transparent splint is arranged on the cover plate; Fastening bolts; the invention also proposes a crack seepage visualization experiment system, which is convenient for replacing crack samples and has a good sealing effect.
Description
Technical Field
The invention relates to the technical field of fracture rock mass seepage, in particular to a fracture overflowing device and a fracture seepage visualization experiment system.
Background
Rock fracture seepage characteristics under high osmotic pressure conditions are generally involved in a plurality of industrial production and scientific researches such as high dam/high head hydroelectric engineering construction and operation, dynamic water driving type landslide prediction, carbon dioxide geological storage, bed rock fracture aquifer pollution remediation and the like. Different from the conventional seepage process of the rock fracture, under the condition of high osmotic pressure, the seepage flow state of the rock fracture is more complicated and changeable, and the obvious hydraulic coupling characteristic exists, so that the seepage characteristic of the rock fracture is difficult to accurately characterize. Because a fracture seepage simulation technology considering both complex flow state and hydraulic coupling needs to be explored, the internal flow characteristics of the existing high-osmotic-pressure rock fracture seepage research are observed by means of a test means and by transparently copying fractures. However, the conventional rock fracture seepage test adopts a small seepage pressure, only adopts the water sealing glue to seal water, and is difficult to ensure the water sealing effect under the high seepage pressure condition, so that the development of the rock fracture seepage test under the high seepage pressure condition is greatly limited.
The invention patent with application number 201710112833.0 discloses a solute migration process optical measurement device based on a rock joint transparent replica, wherein a crack sample and an inlet and outlet groove, namely connecting blocks which are arranged on two sides of the crack sample and used for liquid inlet and liquid discharge are connected in a water sealing adhesive mode, and the problems that the water sealing adhesive has poor water sealing effect even water sealing failure under high osmotic pressure and the test sample can not be detached and replaced are solved.
Disclosure of Invention
The invention aims to solve the technical problems that the crack sample is connected with the connecting block by the water sealing glue, so that the sealing effect between the crack sample and the connecting block is poor, and the crack sample is inconvenient to disassemble and replace.
The invention provides a crack overflowing device, which comprises: the device comprises a fixing frame, a side plate, a first sealing film, a first connecting block, a second sealing film, a bottom plate, a cover plate, a first transparent clamping plate, a second transparent clamping plate and a crack sample;
the fixing frame is of a hollow structure with an upper opening and a lower opening; a second fastening bolt and a third fastening bolt are respectively arranged on the side wall of the fixing frame; the side plates are respectively arranged on the front side and the rear side of the crack sample; the first sealing film is arranged between the crack sample and the side plate and used for sealing the front side and the rear side of the crack sample; the third fastening bolt, the fixing frame and the side plate are matched and used for fixing the first sealing film on the front side and the rear side of the crack sample;
the first connecting block is provided with a first groove, a liquid inlet hole and a first exhaust hole which are respectively communicated with the first groove; the first exhaust hole is positioned at the top of the first connecting block; a second groove, a liquid discharge hole and a second exhaust hole which are communicated with the second groove are formed in the second connecting block; the second exhaust hole is positioned at the top of the second connecting block; the first connecting block and the second connecting block are respectively arranged on the left side and the right side of the crack sample, so that the first groove and the second groove are respectively communicated with the crack of the crack sample; second sealing films are respectively arranged between the first connecting block and the crack sample and between the second connecting block and the crack sample; the second fastening bolt is matched with the fixing frame and used for fixing the first connecting block and the second connecting block on the left side and the right side of the crack sample respectively, so that the first connecting block and the second connecting block are connected with the left side and the right side of the crack sample in a sealing mode respectively;
the bottom plate and the cover plate are respectively provided with a first through hole and a second through hole; the size of each of the first through hole and the second through hole is larger than that of the cross section of the crack sample; the first transparent clamping plate is arranged on the bottom plate and is positioned above the first through hole; the second transparent clamping plate is arranged on the cover plate and is positioned above the second through hole; a first fastening bolt is arranged between the bottom plate and the cover plate and used for adjusting the distance between the bottom plate and the cover plate, so that the first transparent clamping plate and the second transparent clamping plate can be respectively attached to the upper side and the lower side of the crack sample; the bottom plate, the cover plate, the first transparent clamping plate, the second transparent clamping plate and the first fastening bolt are matched and used for limiting the opening degree of the crack.
In some preferred embodiments, the first transparent clamping plate is detachably mounted on the bottom plate; the second transparent clamping plate is detachably arranged on the cover plate.
In some more preferred embodiments, the fracture overflowing device further comprises a bracket, an XYZ three-axis linear sliding table, a vacuum adsorption mechanism and a controller; the vacuum adsorption mechanism is matched with the XYZ three-axis linear sliding table and is used for adjusting the opening degree of the crack; the vacuum adsorption mechanism comprises a sucker, a connecting pipe, a vacuum hose and a vacuum pump; the bracket is arranged on the bottom plate; the XYZ three-axis linear sliding table is arranged on the bracket and used for driving the sucker to move above the crack sample; the connecting pipe is arranged on the XYZ three-axis linear sliding table; the sucker is fixed at one end of the connecting pipe and is communicated with the connecting pipe; the other end of the connecting pipe is communicated with the vacuum pump through the vacuum hose; the sucking disc, the connecting pipe, the vacuum hose and the vacuum pump are matched, and the upper disc is used for adsorbing the crack sample; the controller is respectively electrically connected with the XYZ triaxial linear sliding table and the vacuum pump.
In some preferred embodiments, the bottom of the bottom plate is provided with a leg for supporting the crevice overflow device.
In some preferred embodiments, the first transparent cover plate and the second transparent cover plate are made of acrylic.
In some preferred embodiments, the side plate is made of acrylic.
The invention also provides a fracture seepage visual experiment system which comprises the fracture overflowing device.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: according to the invention, the first sealing film and the side plate are respectively arranged on the front side and the rear side of the crack sample, the first connecting block and the second connecting block are respectively arranged on the left side and the right side of the crack sample, the second sealing film is respectively arranged between the first connecting block and the crack sample and between the second connecting block and the crack sample, and the first sealing film and the side plate are fixed on the front side and the rear side of the crack sample through the matching of the second fastening bolt, the third fastening bolt and the fixing frame, so that the first connecting block and the second connecting block are respectively in sealing connection with the left side and the right side of the crack sample; meanwhile, the opening degree of the crack is limited through the cooperation of the bottom plate, the cover plate, the first transparent clamping plate, the second transparent clamping plate and the first fastening bolt; the first connecting block and the second connecting block are detachably connected with the crack sample respectively, the crack sample is convenient to replace, and the sealing effect is good.
Drawings
FIG. 1 is a schematic perspective view of a fracture overflow device according to an embodiment of the present invention;
FIG. 2 is a schematic circuit diagram of the crack flow device of FIG. 1;
FIG. 3 is a schematic perspective view of a fracture sample clamping mechanism 2 of the fracture overflowing apparatus of FIG. 1;
FIG. 4 is a top view of the fracture sample clamping mechanism 2 of FIG. 3;
FIG. 5 is a schematic cross-sectional view taken along the line A-A of the split sample holding mechanism 2 of FIG. 4;
FIG. 6 is a schematic cross-sectional view taken along the line B-B of the split sample holding mechanism 2 of FIG. 4;
FIG. 7 is a schematic perspective view of the first connecting block 28 of the split sample holding mechanism 2 of FIG. 5;
FIG. 8 is a schematic perspective view of a second sealing film 210 in the split sample holding mechanism 2 of FIG. 5;
FIG. 9 is a schematic perspective view of a second connecting block 27 of the split sample holding mechanism 2 of FIG. 5;
wherein, 1, supporting legs; 2. a fracture sample clamping mechanism; 21. a base plate; 2101. a first through hole; 22. a first transparent splint; 23. a second transparent splint; 24. a cover plate; 2401. a second through hole; 25. a first fastening bolt; 26. a fixing frame; 27. a second connecting block; 2701. a drain hole; 2702. a second vent hole; 2703. a second groove; 28. a first connection block; 2801. a liquid inlet hole; 2802. a first exhaust port; 2803. a first groove; 29. a second fastening bolt; 210. a second sealing film; 211. a third fastening bolt; 212. a side plate; 213. a first sealing film; 3. a support; 4. an XYZ triaxial linear sliding table; 5. a connecting pipe; 6. a suction cup; 7. a controller; 8. a vacuum pump; 9. a fracture sample; 901. hanging the plate; 902. a bottom wall; 903. and (4) cracking.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.
Referring to fig. 3 to 6 and 8, an embodiment of the present invention provides a fracture overflowing apparatus, including a fracture sample holding mechanism 2; the split sample holding mechanism 2 includes: a fixing frame 26, a side plate 212, a first sealing film 213, a first connecting block 28, a second connecting block 27, a second sealing film 210, a bottom plate 21, a cover plate 24, a first transparent clamping plate 22, a second transparent clamping plate 23 and a crack sample 9; the crack sample 9 comprises an upper plate 901 and a lower plate 902; a crack 903 is formed at the joint between the upper disc 901 and the lower disc 902; the size of the gap between the slits 903 is the opening of the slits 903.
The fixing frame 26 is a hollow structure with an upper opening and a lower opening; the cross section of the fixing frame 26 is rectangular; the side walls of the fixing frame 26 are respectively provided with a second fastening bolt 29 and a third fastening bolt 211; the second fastening bolts 29 are oppositely arranged on the left and right side walls of the fixed frame 26 and are respectively used for being abutted against the first connecting block 28 and the second connecting block 27; third fastening bolts 211 are provided on the front and rear side walls of the fixed frame 26 so as to be opposed thereto, and are respectively brought into abutment with the side plates 212; the side plates 212 are respectively arranged at the front side and the rear side of the crack sample 9; the first sealing film 213 is disposed between the fractured sample 9 and the side plate 212, and is used for sealing the front and rear sides of the fractured sample 9; the third fastening bolt 211, the fixing frame 26 and the side plate 212 are matched to clamp the crack sample 9 in the fixing frame 26, so that the first sealing rubber sheets 213 are fixed on the front side and the rear side of the crack sample 9 to seal the front side and the rear side of the crack sample 9.
The first connection block 28 is provided with a first groove 2803, and a liquid inlet hole 2801 and a first exhaust hole 2802 which are respectively communicated with the first groove 2803; the first exhaust hole 2802 is located on the top of the first connection block 28; the number of the liquid inlet holes 2801 is three; three liquid inlet holes 2801 are located at the bottom of the first connection block 28; the second connecting block 27 is provided with a second groove 2703, and a liquid discharge hole 2701 and a second gas discharge hole 2702 which are communicated with the second groove 2703; the second exhaust hole 2702 is located at the top of the second connection block; the number of the drain holes 2701 is three; the three drain holes 2701 are positioned at the bottom of the second connecting block 27; the first exhaust hole 2802 and the second exhaust hole 2702 are used for exhausting air in the first groove 2803 and the second groove 2703, respectively, and are also used for connecting a differential pressure gauge (not shown in the figure); the first connection block 28 and the second connection block 27 are respectively disposed on the left and right sides of the fractured sample 9 such that the first groove 2803 and the second groove 2703 are respectively communicated with the fracture 903 of the fractured sample 9; second sealing films 210 are respectively arranged between the first connecting block 28 and the second connecting block 27 and the crack sample 9; the second sealing film 210 is annular; the second fastening bolt 29 is engaged with the fixing frame 26 for fixing the first connection block 28 and the second connection block 27 to the left and right sides of the fractured sample 9, respectively, so that the first connection block 28 and the second connection block 27 are hermetically connected to the left and right sides of the fractured sample 9, respectively.
The bottom plate 21 and the cover plate 24 are respectively provided with a first through hole 2101 and a second through hole 2401; the dimensions of the first through hole 2101 and the second through hole 2401 are both larger than the dimension of the cross section of the fractured sample 9; the crack sample 9 is positioned right above the first through hole 2101 and right below the second through hole 2401, so that a CCD camera in the crack seepage visual test system can shoot the crack sample 9 through the second through hole 2401; the first transparent clamping plate 22 is arranged on the bottom plate 21 and is positioned above the first through hole 2101; the second transparent clamping plate 23 is arranged on the cover plate 24 and is positioned above the second through hole 2401; a first fastening bolt 25 is arranged between the bottom plate 21 and the cover plate 24 and used for adjusting the distance between the bottom plate 21 and the cover plate 24, so that the first transparent clamping plate 22 and the second transparent clamping plate 23 can be respectively attached to the upper side and the lower side of the fractured sample 9; the bottom plate 21, the cover plate 24, the first transparent clamping plate 22, the second transparent clamping plate 23 and the first fastening bolt 25 are matched and used for limiting the opening degree of the crack 903; when high osmotic pressure fluid enters the gap 903 through the first connecting block 28, the opening of the gap 903 cannot be changed.
Specifically, in order to facilitate the detachment of the first transparent clamping plate 22 and the second transparent clamping plate 23, the first transparent clamping plate 22 is detachably mounted on the base plate 21 by screws, and the second transparent clamping plate 23 is detachably mounted on the cover plate 24 by screws.
Referring to fig. 1 and 2, in order to adjust the opening degree of the crack 903, the crack overflowing device further comprises a bracket 3, an XYZ three-axis linear sliding table 4, a vacuum adsorption mechanism and a controller 7; the vacuum adsorption mechanism is matched with the XYZ three-axis linear sliding table 4 and is used for adjusting the opening degree of the crack 903; the vacuum adsorption mechanism comprises a sucker 6, a connecting pipe 5, a vacuum hose (not shown in the figure) and a vacuum pump 8; the bracket 3 is arranged on the bottom plate 21; the XYZ three-axis linear sliding table 4 is arranged on the bracket 3 and used for driving the sucker 6 to move above the crack sample 9; the connecting pipe 5 is arranged on the XYZ three-axis linear sliding table 4; the sucker 6 is fixed at one end of the connecting pipe 5 and is communicated with the connecting pipe 5; the other end of the connecting pipe 5 is communicated with a vacuum pump 8 through the vacuum hose; the sucking disc 6, the connecting pipe 5, the vacuum hose and the vacuum pump 8 are matched, and the upper disc 901 is used for adsorbing a crack sample 9; the controller 7 is respectively electrically connected with the XYZ three-axis linear sliding table 4 and the vacuum pump 8; when in use, the position of the crack sample 9 in the fixing frame 26 is adjusted; the controller 7 controls the XYZ three-axis linear sliding table 4 to move the sucker 6 to the upper disc 901 of the crack sample 9 to abut against the upper disc 901, controls the vacuum pump 8 to work, enables the sucker 6 to be adsorbed on the upper disc 901, and then controls the XYZ three-axis linear sliding table 4 to drive the sucker 6 to move upwards to adjust the opening of the crack 903; the first connecting block 28, the second connecting block 27 and the second sealing film 210 are tightly extruded at the left side and the right side of the crack sample 9 through the second fastening bolt 29, and the side plate 212 and the first sealing film 213 are tightly extruded at the front side and the rear side of the crack sample 9 through the third fastening bolt 211, so that the side wall of the crack sample 9 is clamped and sealed; next, the controller 7 controls the vacuum pump 8 to be turned off, and controls the XYZ three-axis linear sliding table 4 to move the sucker 6 to the outer side of the fractured sample 9; finally, the first transparent clamping plate 22 is installed on the cover plate 24, and the distance between the bottom plate 21 and the cover plate 24 is adjusted through the first fastening bolt 25, so that the first transparent clamping plate 22 and the second transparent clamping plate 23 are respectively attached to the upper side and the lower side of the crack sample 9, and the opening degree of the crack 903 is prevented from being changed due to the action of the high osmotic pressure liquid.
It should be noted that, the XYZ three-axis linear sliding table 4 is a prior art, and therefore, the detailed structure thereof is not described herein.
Specifically, the bottom of the bottom plate 21 is provided with a support leg 1 for supporting the fracture overflowing device; the first transparent cover plate 24 and the second transparent cover plate 24 are made of acrylic; the side plate 212 is made of acrylic.
Specifically, referring to fig. 7 and 9, the first connection block 28 is provided with three liquid inlet holes 2801 and one first exhaust hole 2802; the liquid inlet hole 2801 is located at the bottom of the first connection block 28; the first exhaust hole 2802 is located on the top of the first connection block 28; the second connecting block 27 is provided with three liquid discharge holes 2701 and a second exhaust hole 2702, and the three liquid discharge holes 2701 are all positioned at the bottom of the second connecting block 27; the second exhaust hole 2702 is located at the top of the second connection block 27; when in use, a liquid inlet pipe in the fracture seepage visual test system is communicated with a liquid inlet hole 2801 of a first connecting block 28; a liquid discharge pipe in the fracture seepage visual test system is communicated with a liquid discharge hole 2701 on a second connecting block 27; when the first groove 2803 and the second groove 2703 are filled with liquid, the first exhaust hole 2802 and the second exhaust hole 2702 are communicated, respectively, using the pressure difference meter.
The invention also provides a fracture seepage visual experiment system which comprises the fracture overflowing device.
The installation and use method of the fracture overflowing device in the embodiment is as follows:
placing a fixing frame 26 on a bottom plate 21, placing a crack sample 9 on a first transparent clamping plate 22, so that the crack sample 9 is located in the fixing frame 26, sequentially placing a first sealing rubber sheet 213, a side plate 212, a first connecting block 28, a second connecting block 27 and a second sealing rubber sheet 210, and then connecting a cover plate 24 with the bottom plate 21 through a first fastening bolt 25, so that the cover plate 24 is located above the fixing frame 26 (at this time, the second transparent clamping plate 23 is not mounted on the cover plate 24); after the position of the fractured sample 9 in the fixing frame 26 is adjusted; the controller 7 controls the XYZ three-axis linear sliding table 4 to move the sucker 6 to the upper disc 901 of the crack sample 9 to abut against the upper disc 901, controls the vacuum pump 8 to work, enables the sucker 6 to be adsorbed on the upper disc 901, and then controls the XYZ three-axis linear sliding table 4 to drive the sucker 6 to move upwards to adjust the opening of the crack 903; the first connecting block 28, the second connecting block 27 and the second sealing film 210 are tightly extruded at the left side and the right side of the crack sample 9 through the second fastening bolt 29, and the side plate 212 and the first sealing film 213 are tightly extruded at the front side and the rear side of the crack sample 9 through the third fastening bolt 211, so that the side wall of the crack sample 9 is clamped and sealed; next, the controller 7 controls the vacuum pump 8 to be turned off, and controls the XYZ three-axis linear sliding table 4 to move the sucker 6 to the outer side of the fractured sample 9; finally, the first transparent clamping plate 22 is arranged on the cover plate 24, and the distance between the bottom plate 21 and the cover plate 24 is adjusted through the first fastening bolt 25, so that the first transparent clamping plate 22 and the second transparent clamping plate 23 are respectively attached to the upper side and the lower side of the crack sample 9, and the opening degree of the crack 903 is prevented from being changed due to the action of high osmotic pressure liquid
When in use, a liquid inlet pipe in the fracture seepage visual test system is communicated with a liquid inlet hole 2801 of a first connecting block 28; a liquid discharge pipe in the fracture seepage visual test system is communicated with a liquid discharge hole 2701 on a second connecting block 27; when the first groove 2803 and the second groove 2703 are filled with liquid, the differential pressure gauge is communicated with the first exhaust hole 2802 and the second exhaust hole 2702, respectively; next, a visualization test of the fracture seepage can be performed.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110417527.4A CN113188958A (en) | 2021-04-19 | 2021-04-19 | Fracture overflowing device and fracture seepage visual test system |
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| CN202110417527.4A CN113188958A (en) | 2021-04-19 | 2021-04-19 | Fracture overflowing device and fracture seepage visual test system |
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| CN113188958A true CN113188958A (en) | 2021-07-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118858105A (en) * | 2024-07-30 | 2024-10-29 | 南京大学 | A natural rough fracture surface non-uniform seepage visualization experimental device and method |
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