CN109100481A - Characteristics of fracture development integrated experiment device under a kind of closed soil body drying and watering cycle - Google Patents
Characteristics of fracture development integrated experiment device under a kind of closed soil body drying and watering cycle Download PDFInfo
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- CN109100481A CN109100481A CN201710472802.6A CN201710472802A CN109100481A CN 109100481 A CN109100481 A CN 109100481A CN 201710472802 A CN201710472802 A CN 201710472802A CN 109100481 A CN109100481 A CN 109100481A
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- 239000002689 soil Substances 0.000 title claims abstract description 42
- 238000011161 development Methods 0.000 title claims abstract description 22
- 238000001035 drying Methods 0.000 title claims abstract description 20
- 208000010392 Bone Fractures Diseases 0.000 title claims abstract description 16
- 206010017076 Fracture Diseases 0.000 title claims abstract description 16
- 238000002474 experimental method Methods 0.000 title claims abstract description 14
- 229920005372 Plexiglas® Polymers 0.000 claims abstract description 28
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000007921 spray Substances 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 239000004575 stone Substances 0.000 claims abstract description 6
- 239000011521 glass Substances 0.000 claims description 12
- 238000000605 extraction Methods 0.000 claims description 4
- 238000001556 precipitation Methods 0.000 claims description 4
- 230000002706 hydrostatic effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000009529 body temperature measurement Methods 0.000 claims description 2
- 239000004568 cement Substances 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 12
- 238000012360 testing method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 8
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 238000005286 illumination Methods 0.000 abstract description 3
- 238000012806 monitoring device Methods 0.000 abstract description 2
- 238000011160 research Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 239000005343 cylinder glass Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000010429 evolutionary process Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011158 quantitative evaluation Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
- G01N33/246—Earth materials for water content
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Abstract
The invention discloses characteristics of fracture development integrated experiment devices under a kind of closed soil body drying and watering cycle, the device is divided into four parts, first part is experimental rig, including cylindrical plexiglass box (1), drainage hole (12), hemispherical wall cover (2), pallet (7) and permeable stone (11)；Second part is monitoring device, including warm and humid sensor (10), digital camera (6), data collector (14) and electronic computer (13)；Part III is water supply device, including water tank (3), booster pump (4), flow controller (5), spray head (9) and jet pipe (15)；Part IV illumination and heating device, including heating is with headlamp (8).Entire test process can carry out real time monitoring to the soil body by electronic computer (13) and data acquire, and obtains under soil body rainfall runoff and the moisture content of the soil body and the changing rule of temperature in the feature and rule and whole process of cranny development under drying and watering cycle.
Description
Technical field
The present invention relates to a kind of under enclosed environment during the drying and watering cycle of real-time monitoring soil body characteristics of fracture development it is comprehensive
Close experimental rig.The device can simulate in natural precipitation runoff process, different soil temperatures and moisture content and cranny development
Relationship and drying and watering cycle during cranny development process and variation, pass through digital camera extract real-time soil body surface crack
Parameter is depicted as chart using computer program, to find characteristics of fracture development and rule.
Background technique
The research of growth of soil mass crack rule is always the very important aspect of soil structure research field, by soil mass crack
All kinds of accidents caused by developing happen occasionally, therefore receive the great attention of academia of various countries and engineering circles.Some special soils
Body, such as swelled ground, extremely sensitive to amblent air temperature, with the rainfall and evaporation in natural environment, the soil body easily generates crack,
To destroy the globality of soil structures.And with the generation in crack, Fracture Networks provide again for rain infiltration and moisture evaporation
Good channel easily forms landslide so that influence of the weather to the soil body be further deep into inside soil body.It is different types of
Soil property, the variation of soil temperature and the variation of moisture content can all have an impact the formation in crack, this experimental rig is research
Factors above provides convenience on the independent influence of cranny development and combined influence, to improve the research effect of researcher
Rate has biggish meaning and value.
Currently, most of wetting-drying test methods all can not carry out real-time monitoring and data processing to test process,
It is difficult to study the relationship between growth of soil mass crack and soil temperature, moisture content, more to soil not under enclosed environment
It is studied in body crack.Therefore one kind characteristics of fracture development during the drying and watering cycle of the real-time monitoring soil body under enclosed environment is designed
Integrated experiment device, which can carry out drying and watering cycle process in real time and lasting observation, while pass through warm and humid sensor
Soil temperature and moisture content can accurately be controlled, with the reliability of guarantee test, be obtained in conjunction with digital camera
The picture of soil body surface cranny development therefrom obtains drying and watering cycle process and soil temperature and moisture content to the shadow of cranny development
It rings.
Summary of the invention
For the present invention primarily to realizing the integration operation of test process, raising test efficiency passes through simulated rainfall diameter
It flows with water evaporation and carries out wetting-drying test, while carrying out crack evolution test by the monitoring to temperature and moisture content,
To significantly reduce the test burden of researcher, pass through soil under manual control simulation not equality of temperature-humidity environment in addition to this
The crack of sample, which develops, tests, and can study the dimensional effect, temperature sensitivity and sample uniformity of soil sample cranny development to soil
The influence of sample cranny development；It is consistent by controlling external illumination condition and camera inherent parameters in digital photography, it can study
The photographs of soil sample fracture surface feature acquires and information extracting method, and obtained clear picture then can be by mathematics shape
The quantitative evaluation methods of characteristic parameter in the evolutionary process of state technique study crack, therefore the present invention can be used as compbined test
Device come using.
In order to realize aforesaid operations, the present invention provides the integrated experiment device that can simulate drying and watering cycle, the devices point
For four parts, first part is experimental rig, including cylindrical plexiglass box (1), drainage hole (12), hemispherical wall cover
(2), pallet (7) and permeable stone (11)；Second part is monitoring device, including warm and humid sensor (10), digital camera (6),
Data collector (14) and electronic computer (13)；Part III is water supply device, including water tank (3), booster pump (4), flow
Controller (5), spray head (9) and jet pipe (15)；Part IV illumination and heating device, including heating is with headlamp (8).
The integral layout of characteristics of fracture development integrated experiment device is under the soil body drying and watering cycle: plexiglass box
(1) it is divided into inside and outside two hydrostatic columns, drainage hole (12), internal container surrounding are arranged at external cylindrical plexiglass box bottom
20 circular holes are drilled with, altogether for drawing warm and humid sensor (10) connecting line；The internal container bottom is placed with permeable stone (11),
To prevent drainage hole to be plugged；Hemispherical wall cover (2) surrounding is equipped with heating adjustable illuminating light bulb (8), upper middle
Position is placed with pallet (7), and for placing digital camera (6), all connecting lines are drawn by top hole；Organic cylinder
Glass container (1) external equipment have spray head (9), flow controller (5), booster pump (4), water tank (3), data collector (14) and
Electronic computer (13)；The warm and humid sensor (10) is connected with external data collector (14), then accesses electronic computer
(13)；The digital camera (6) directly connect with electronic computer (13), is controlled by electronic computer (13).
The external cylindrical plexiglass box (1) is made of organic glass, and the height of the container is 1600mm, diameter
For 1500mm, wall thickness 25mm；Interior cylindrical plexiglass box (1) is highly 1700mm, diameter 900mm, and wall thickness is
25mm；Interior cylindrical plexiglass box (1) surrounding is drilled with 20 circular holes, and point 5 layers every layer 4 hole are respectively symmetrically distributed in
Surrounding counts from top to bottom, and first layer is separated by 350mm between every layer apart from top 200mm, then；External cylindrical organic glass
The circular hole (12) that container (1) bottom is drilled with diameter 50mm is used to drain water.
The hemispherical wall cover (2) is made of organic glass, and wall cover diameter and external cylindrical plexiglass box (1) are straight
Diameter is consistent, is all 1500mm；Rectangle Pallet (7) a length of 950mm, width 300mm, away from position at the 155mm of top, there are two left
Right symmetrical rectangle hole, digital camera (6) is then placed on support for placing Pallet (7) by a length of 970mm, width 20mm
On object disk (7)；It is evenly arranged heating adjustable illuminating light bulb (8) inside hemispherical wall cover (2), has a hole at the top of wall cover,
For drawing light bulb conducting wire and digital camera connecting line；Middle position is symmetrically provided with hole at left and right sides of wall cover, size according to
Jet pipe (15) diameter is determined.
Warm and humid sensor (10) temperature measurement range is -10 ~ 40 degree, and precision is 0.5 degree, moisture measurement range for 0 ~
100%, precision 3%, when soil is filled out near interior cylindrical plexiglass box (1) surrounding hole, near each hole
It is embedded to a warm and humid sensor (10), four every layer, the conducting wire of sensor is drawn from hole, is sealed after extraction with glass cement
It closes, fills up interior cylindrical plexiglass box according to one straight grip soil of the step；The conducting wire of extraction and data collector (14)
It is connected, then is connected to electronic computer (13) by collector (14).
The water supply device: spray head (9) is truncated cone-shaped spray head, and upper circular diameter is 70mm, and lower circular diameter is 15mm, a height of
25mm；Water tank (3) wall thickness 30mm, is made, capacity is up to 15L of pmma material；Booster pump (4) rated head is 10m；Stream
Amount controller (5) control range is 20ml ~ 150ml/min, precision 2ml/min, the pipeline for being 15mm with diameter between device
(15) it is connected, precipitation intensity can be efficiently controlled by adjusting booster pump (4) and flow controller (5).
Detailed description of the invention:
Fig. 1 is integrated experiment device plane structure chart；
Fig. 2 is plexiglass box overall diagram；
Fig. 3 is plexiglass box front view；
Fig. 4 is plexiglass box side view；
Fig. 5 is hemispherical wall cover overall diagram；
Fig. 6 is hemispherical wall cover front view；
Fig. 7 is hemispherical wall cover side view；
Fig. 8 is water supply device schematic diagram.
Label in attached drawing: 1- plexiglass box, 2- hemispherical wall cover, 3- water tank, 4- booster pump, 5- flow control
Device, 6- digital camera, 7- Pallet, 8- heating adjustable illuminating light bulb, 9- spray head, the warm and humid sensor of 10-, 11- permeable stone,
12- drainage hole, 13- electronic computer, 14- data collector, 15- jet pipe.
Specific embodiment:
In conjunction with attached drawing to a kind of specific embodiment of characteristics of fracture development integrated experiment device under closed soil body drying and watering cycle
It is illustrated:
As the integral layout of characteristics of fracture development integrated experiment device under Fig. 1 soil body drying and watering cycle is: plexiglass box (1) point
For inside and outside two hydrostatic columns, drainage hole (12) are arranged at external cylindrical plexiglass box bottom, and internal container surrounding has altogether
20 circular holes are drilled with, for drawing warm and humid sensor (10) connecting line；Internal container (1) bottom is placed with permeable stone (11),
To prevent drainage hole to be plugged；Hemispherical wall cover (2) surrounding is equipped with heating adjustable illuminating light bulb (8), upper middle
Position is placed with pallet (7), and for placing digital camera (6), all connecting lines are drawn by top hole；Organic cylinder
Glass container (1) external equipment have spray head (9), flow controller (5), booster pump (4), water tank (3), data collector (14) and
Electronic computer (13)；The warm and humid sensor (10) is connected with external data collector (14), then accesses electronic computer
(13)；The digital camera (6) directly connect with electronic computer (13), is controlled by electronic computer (13).
If the external cylindrical plexiglass box of Fig. 2,3,4 (1) is made of organic glass, the height of the container is
1600mm, diameter 1500mm, wall thickness 25mm；Interior cylindrical plexiglass box (1) is highly 1700mm, and diameter is
900mm, wall thickness 25mm；Interior cylindrical plexiglass box (1) surrounding is drilled with 20 circular holes, point 5 layers every layer 4 hole, point
It is not symmetrically distributed in surrounding, counts from top to bottom, first layer is separated by 350mm between every layer apart from top 200mm, then；Outer circle
The circular hole that cylindricality plexiglass box (1) bottom is drilled with diameter 50mm is used to drain the mouth of a river.
If the hemispherical wall cover of Fig. 5,6,7 (2) is made of organic glass, wall cover diameter and external cylindrical plexiglass box
(1) diameter is consistent, is all 1500mm；Rectangle Pallet (7) a length of 950mm, width 300mm has two away from position at the 155mm of top
A symmetrical rectangle hole, a length of 970mm, width 20mm then put digital camera (6) for placing Pallet (7)
On pallet (7)；It is evenly arranged heating adjustable illuminating light bulb (8) inside hemispherical wall cover (2), has a hole at the top of wall cover
Hole, for drawing light bulb conducting wire and digital camera connecting line；Middle position is symmetrically provided with hole at left and right sides of wall cover (2), greatly
It is small to be determined according to jet pipe (15) diameter.
Such as Fig. 8 water supply device: spray head (9) is truncated cone-shaped spray head, and upper circular diameter is 70mm, and lower circular diameter is 15mm, a height of
25mm；Water tank (3) wall thickness 30mm, is made, capacity is up to 15L of pmma material；Booster pump (4) rated head is 10m；Stream
Amount controller (5) control range is 20ml ~ 150ml/min, precision 2ml/min, the pipeline for being 15mm with diameter between device
It is connected, precipitation intensity can be efficiently controlled by adjusting booster pump (4) and flow controller (5).
Claims (5)
1. characteristics of fracture development integrated experiment device under a kind of closed soil body drying and watering cycle, it is characterised in that: organic glass holds
Device (1) is divided into inside and outside two hydrostatic columns, and drainage hole (12), internal container four are arranged at external cylindrical plexiglass box bottom
Week is drilled with 20 circular holes altogether, for drawing warm and humid sensor (10) connecting line；The internal container bottom is placed with permeable stone
(11), to prevent drainage hole to be plugged；Hemispherical wall cover (2) surrounding is equipped with heating adjustable illuminating light bulb (8), centre
Position on the upper side is placed with pallet (7), and for placing digital camera (6), all connecting lines are drawn by top hole；Organic circle
Cylindrical glass container (1) external equipment has spray head (9), flow controller (5), booster pump (4), water tank (3), data collector
(14) and electronic computer (13)；The warm and humid sensor (10) is connected with external data collector (14), then accesses electronics
Computer (13)；The digital camera (6) directly connect with electronic computer (13), is controlled by electronic computer (13).
2. characteristics of fracture development integrated experiment device under a kind of closed soil body drying and watering cycle according to claim 1, special
Sign is: external cylindrical plexiglass box (1) is made of organic glass, and the height of the container is 1600mm, and diameter is
1500mm, wall thickness 25mm；Interior cylindrical plexiglass box (1) is highly 1700mm, diameter 900mm, and wall thickness is
25mm；Interior cylindrical plexiglass box (1) surrounding is drilled with 20 circular holes, and point 5 layers every layer 4 hole are respectively symmetrically distributed in
Surrounding counts from top to bottom, and first layer is separated by 350mm between every layer apart from top 200mm, then；External cylindrical organic glass
The circular hole (12) that container (1) bottom is drilled with diameter 50mm is used to drain water.
3. characteristics of fracture development integrated experiment device under a kind of closed soil body drying and watering cycle according to claim 1, special
Sign is: hemispherical wall cover (2) is made of organic glass, wall cover diameter and external cylindrical plexiglass box (1) diameter one
It causes, is all 1500mm；Rectangle Pallet (7) a length of 950mm, width 300mm, away from position at the 155mm of top, there are two left and right pair
Digital camera (6) is then placed on pallet for placing Pallet (7) by the rectangle hole of title, a length of 970mm, width 20mm
(7) on；It is evenly arranged heating adjustable illuminating light bulb (8) inside hemispherical wall cover (2), has a hole at the top of wall cover, is used for
Draw light bulb conducting wire and digital camera connecting line；Middle position is symmetrically provided with hole at left and right sides of wall cover, and size is according to jet pipe
(15) diameter is determined.
4. characteristics of fracture development integrated experiment device under a kind of closed soil body drying and watering cycle according to claim 1, special
Sign is: warm and humid sensor (10) temperature measurement range is -10 ~ 40 degree, and precision is 0.5 degree, and moisture measurement range is 0 ~ 100%,
Precision is 3%, when soil is filled out near interior cylindrical plexiglass box (1) surrounding hole, is embedded to one near each hole
A warm and humid sensor (10), four every layer, the conducting wire of sensor is drawn from hole, is closed after extraction with glass cement, according to
One straight grip soil of the step fills up interior cylindrical plexiglass box；The conducting wire of extraction is connected with data collector (14), then
Electronic computer (13) are connected to by collector (14).
5. characteristics of fracture development integrated experiment device under a kind of closed soil body drying and watering cycle according to claim 1, special
Sign is: spray head (9) is truncated cone-shaped spray head, and upper circular diameter is 70mm, and lower circular diameter is 15mm, a height of 25mm；Water tank (3) wall thickness
30mm is made of pmma material, and capacity is up to 15L；Booster pump (4) rated head is 10m；Flow controller (5) control
Range is 20ml ~ 150ml/min, precision 2ml/min, is connected between device with the pipeline (15) that diameter is 15mm, passes through tune
Section booster pump (4) and flow controller (5) can efficiently control precipitation intensity.
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| CN201710472802.6A CN109100481A (en) | 2017-06-21 | 2017-06-21 | Characteristics of fracture development integrated experiment device under a kind of closed soil body drying and watering cycle |
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| CN201710472802.6A CN109100481A (en) | 2017-06-21 | 2017-06-21 | Characteristics of fracture development integrated experiment device under a kind of closed soil body drying and watering cycle |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133222A (en) * | 2019-05-15 | 2019-08-16 | 贵州师范大学 | A kind of Karst region water and soil leakage water-salt migration monitoring method |
| CN110412243A (en) * | 2019-07-09 | 2019-11-05 | 衢州学院 | One kind being used for Factors on The Thermal Cracking of Rocks experimental provision |
| CN111239036A (en) * | 2020-03-18 | 2020-06-05 | 南京航空航天大学 | Road foundation soil temperature and humidity monitoring experimental device with controllable dry and wet threshold values and experimental method |
| CN113030435A (en) * | 2021-03-04 | 2021-06-25 | 西安建筑科技大学 | Soil body vertical fracture model observation test device and test method |
| CN113310840A (en) * | 2021-05-28 | 2021-08-27 | 中国科学院武汉岩土力学研究所 | Soft rock water absorption crack expansion test device and test method |
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| CN110133222A (en) * | 2019-05-15 | 2019-08-16 | 贵州师范大学 | A kind of Karst region water and soil leakage water-salt migration monitoring method |
| CN110412243A (en) * | 2019-07-09 | 2019-11-05 | 衢州学院 | One kind being used for Factors on The Thermal Cracking of Rocks experimental provision |
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