CN204832095U - Alternation of wetting and drying crack measuring device of indoor soil property side slope model - Google Patents
Alternation of wetting and drying crack measuring device of indoor soil property side slope model Download PDFInfo
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- CN204832095U CN204832095U CN201520582754.2U CN201520582754U CN204832095U CN 204832095 U CN204832095 U CN 204832095U CN 201520582754 U CN201520582754 U CN 201520582754U CN 204832095 U CN204832095 U CN 204832095U
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Abstract
The utility model discloses an alternation of wetting and drying crack measuring device of indoor soil property side slope model, including organic glass model groove and soil property side slope sample, still including setting up the simulation system at sunshine and simulation rainfall system in organic glass model groove top, be provided with temperature and humidity sensor in the soil property side slope sample, still be provided with copper electrode probe on the soil property side slope sample, copper electrode probe is connected with electric method appearance, and temperature and humidity sensor and data collection station are connected. The utility model discloses detection method is simple, and convenient operation, and do not harm the inner structure of the soil body when surveying resistivity, humiture isoparametric can carry out a lot of drying and watering cycle, long experimental observation when multiple, and the suitability is better, adopted high accuracy high density electricity method appearance, the data volume of collection is big, and the earth electricity information of reflection is abundant, can study futilely the measurement of the crack degree of depth among the wet cyclic process and the evaluation of the degree of growth effectively.
Description
Technical field
The utility model belongs to geotechnical engineering investigation field, more specifically relate to a kind of alternation of wetting and drying fracture measuring device of indoor soil-slope model, be applicable to the nondestructive detecting of soil mass crack, easy to be easy-to-use, can be used for the evaluation of indoor soil-slope model cranny development degree.
Background technology
Cranny development is one of topmost feature after soil cutting side slope excavation, the existence in crack drastically influence the engineering characteristic of the soil body and the stability of side slope, cause the reason of soil-body landslide a lot, climate effect (temperature, humidity change) is wherein one of topmost factor.At present, for splitting the concern primary limitation of soil cracking gap in soil mass crack morphological feature, study also main based on the research in soil body surface crack.In fact, for the basic impact of soil-slope, crack is that carrying out of internal crack grows and the inflow of water and evaporation, and the sliding surface degree of depth, the cranny development degree of depth, weathering influence depth, three is basic or close to consistent, visible Depth is exactly the lower limit of dangerous sliding surface substantially.Therefore, only rely on the research that clay external crack is carried out, rest in morphologic angle, can not real Guiding Practice.
The crack of soil-slope to carry out in long-time after side slope is formed of the degree of depth be all development, the time is longer, and crack developing is darker.If domatic new excavation or newly fill, then in long duration afterwards, crack also can Evolution Development, and Depth development is in time the basic reason causing Stability of Soil Slope in time and reduce.
Utility model content
The purpose of this utility model is the problems referred to above being to exist for prior art, provides a kind of alternation of wetting and drying fracture measuring device of indoor soil-slope model.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions:
A kind of alternation of wetting and drying fracture measuring device of indoor soil-slope model, comprise organic glass model groove and soil-slope sample, also comprise and be arranged on simulating sun lighting system above organic glass model groove and simulated rainfall system, Temperature Humidity Sensor is provided with in soil-slope sample, soil-slope sample is also provided with copper electrodes probe, copper electrodes probe is connected with electrical prospecting apparatus, and Temperature Humidity Sensor is connected with data acquisition unit.
Simulated rainfall system as above comprises the PVC simulated rainfall pipeline group being fixed on ceiling by setscrew, the bottom of PVC simulated rainfall pipeline group is provided with simulated precipitation water delivering orifice, and PVC simulated rainfall pipeline group is communicated with constant head tank by rubber hose.
Simulating sun lighting system as above is infrared heater.
Copper electrodes probe as above is multiple and equidistantly inserts soil-slope sample.
Copper electrodes probe as above is 60, and the spacing between each copper electrodes probe is not less than 2cm.
Soil-slope sample as above is multilayer, Temperature Humidity Sensor is arranged between each layer of soil-slope sample, the sidewall of organic glass model groove offers round hole, and conductor wire one end is connected with Temperature Humidity Sensor, and the other end is connected with data acquisition unit through round hole.
Bottom soil-slope sample as above, pad is provided with wooden cushion block.
The utility model compared with prior art, has the following advantages:
Detection method is simple, easy to operate, and does not damage the inner structure of the soil body during detection parameter such as resistivity, humiture, and can carry out repeatedly drying and watering cycle, the test observation of multiple duration, applicability is better; Have employed high precision high-density electric instrument, the data volume of collection is large, and the ground electricity abundant information of reflection, can study the measurement of Depth and the evaluation of development degree in drying and watering cycle process effectively.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 1: 1-organic glass model groove, the wooden cushion block of 2-, 3-conductor wire, 4-data acquisition unit, 5-round hole, 6-constant head tank, 7-simulated rainfall water delivering orifice, 8-PVC simulated rainfall pipeline group, 9-rubber hose, 10-setscrew, 11-Temperature Humidity Sensor, 12-infrared heater (1.2kW), 13-soil-slope sample, 14-copper electrodes probe (diameter 1cm), 15-electrical prospecting apparatus.
Fig. 2 is the simulation sunshine condition resistivity cloud atlas of lower 40 hours.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail.
Embodiment 1:
A kind of alternation of wetting and drying fracture measuring device of indoor soil-slope model, comprise organic glass model groove 1 and soil-slope sample 13, also comprise and be arranged on simulating sun lighting system above organic glass model groove 1 and simulated rainfall system, Temperature Humidity Sensor 11 is provided with in soil-slope sample 13, soil-slope sample 13 is also provided with copper electrodes probe 14, copper electrodes probe 14 is connected with electrical prospecting apparatus 15, and Temperature Humidity Sensor 11 is connected with data acquisition unit 4.
Preferably, simulated rainfall system comprises the PVC simulated rainfall pipeline group 8 being fixed on ceiling by setscrew 10, the bottom of PVC simulated rainfall pipeline group 8 is provided with simulated precipitation water delivering orifice 7, PVC simulated rainfall pipeline group 8 and is communicated with constant head tank 6 by rubber hose 9.
Preferably, simulating sun lighting system is infrared heater 12.
Preferably, copper electrodes probe 14 is multiple and equidistantly inserts soil-slope sample 13.
Preferably, copper electrodes probe 14 is 60, and the spacing between each copper electrodes probe 14 is not less than 2cm.
Preferably, soil-slope sample 13 is multilayer, Temperature Humidity Sensor 11 is arranged between each layer of soil-slope sample 13, the sidewall of organic glass model groove 1 offers round hole 5, conductor wire 3 one end is connected with Temperature Humidity Sensor 11, and the other end is connected with data acquisition unit 4 through round hole 5.
Preferably, bottom soil-slope sample 13, pad is provided with wooden cushion block 2.
Embodiment 2:
A kind of alternation of wetting and drying fracture measuring device of indoor soil-slope model, comprise the copper electrodes probe 14 of the highdensity electrical prospecting apparatus 15 of high precision, organic glass model case 1, diameter 1cm, Temperature Humidity Sensor 11, data acquisition unit 4, the infrared heater 12 of simulating sun photograph and the PVC simulated rainfall pipeline group 8 of simulated rainfall.Wherein, high precision high-density electric instrument has Winner, Winner-Schlumberger etc. and runs pole mode, and voltage measurement resolution reaches 1 μ V, current measurement resolution reaches 1 μ A, it is 2cm that cloth die opening can be set to minimum, Japanese McOHMProfiler-4 high-density electric instrument can be adopted, or meet the commercially available high-density electric instrument of above-mentioned condition.
Organic glass model case 1, adopt grooved layout, material is the organic glass of insulation, long, wide, high size adjusts according to research object, and the circular hole of 5 ~ 8 diameter 5mm can be had in side slope side, for leading in/out of Temperature Humidity Sensor wire, soil-slope adopts and layering to be hit real method shaping, every layer hit real completing after need to hit reality carrying out lower one deck after soil body surface plucking again, to ensure that Coating combination is tight, it is multiple that slope ratio can be arranged to 1:1 ~ 1:5 etc., infrared heater 12 and the PVC simulated rainfall pipeline group 8 of 1.2kW are set above model.
The copper electrodes probe 14 of diameter 1cm can be 60, carries out cloth pole according to 1/60 model length, but minimum spacing should not be less than 2cm.
Temperature Humidity Sensor 11, adopt the soil temperature-moisture sensor of time domain reflection technology (TDR), operating temperature range-5 DEG C ~ 85 DEG C, water percentage range: 0 ~ 100%, German MST3000 Temperature Humidity Sensor and data acquisition unit can be adopted, or adopt the commercially available Temperature Humidity Sensor meeting above-mentioned condition.Temperature Humidity Sensor wire is drawn from model casing side tapping, is connected to humiture data acquisition instrument and carries out reading.
The resistance parameter that this device gathers, can adopt the mapping software such as Surfer to form resistivity distribution figure, according to soil mass crack generating unit resistivity much larger than the feature differentiation of other part soil bodys with evaluate soil body fissure depth and cranny development degree.
A kind of alternation of wetting and drying fracture measuring device of indoor soil-slope model, its connected mode is: the soil-slope sample in organic glass model groove is layering compacted soil samples side slope, every layer hit real completing after place Temperature Humidity Sensor, and humidity sensor conductor wire is connected with data acquisition unit through the round hole on organic glass model groove side, for obtaining the Humidity Test data in process of the test, diameter 1cm copper electrodes probe 60 equidistantly inserts in soil-slope sample, and be connected with high precision high-density electric instrument with wire, the infrared heater being provided with 1.2kW above machine glass model groove carrys out simulating sun lighting system, and PVC simulated rainfall pipeline group carries out drying and watering cycle, infrared heater and the PVC simulated rainfall pipeline group setscrew of 1.2kW are fixed in ceiling or support, PVC simulated rainfall pipeline group is provided with equally spaced simulated rainfall water delivering orifice, water supply in PVC simulated rainfall pipeline group is provided by constant head tank, being connected with constant head tank rubber hose in PVC simulated rainfall pipeline group, organic glass model groove is steadily placed on wooden cushion block.
Embodiment 3:
For red clay soil-slope test sample, soil-slope sample 13 in organic glass model groove 1 is red clay layering compacted soil samples side slope, slope is than being 1:2, hitting real process divides 6 layers to carry out, every layer hit real completing after place Temperature Humidity Sensor 11, and humidity sensor 11 conductor wire 13 is connected with data acquisition unit 4 through the round hole 5 on organic glass model groove 1 side, for obtaining the Humidity Test data in process of the test, 60 diameter 1cm copper electrodes probes 14 are with in the equidistant insertion soil-slope sample 13 of 2.5cm, the degree of depth is 2cm, 60 diameter 1cm copper electrodes probes 14 are all connected with high precision high-density electric instrument 15 with wire, high precision high-density electric instrument 15Winner, Winner-Schlumberger etc. run the soil body resistivity of pole mode to soil-slope sample 13 and test, the infrared heater 12 being provided with 1.2kW above machine glass model groove 1 carrys out simulating sun lighting system, and PVC simulated rainfall pipeline group 8 carries out drying and watering cycle, infrared heater 12 and PVC simulated rainfall pipeline group 8 setscrew 10 of 1.2kW are fixed in ceiling or support, PVC simulated rainfall pipeline group 8 is provided with equally spaced simulated rainfall water delivering orifice 7, water supply in PVC simulated rainfall pipeline group 8 is provided by constant head tank 6, being connected with constant head tank 6 rubber hose 9 in PVC simulated rainfall pipeline group 8, organic glass model groove 1 is steadily placed on wooden cushion block 2.
Fig. 2 is the simulation sunshine condition resistivity cloud atlas of lower 40 hours, from figure, obviously can see cranny development situation.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (7)
1. the alternation of wetting and drying fracture measuring device of an indoor soil-slope model, comprise organic glass model groove (1) and soil-slope sample (13), it is characterized in that, also comprise the simulating sun lighting system and simulated rainfall system that are arranged on organic glass model groove (1) top, Temperature Humidity Sensor (11) is provided with in soil-slope sample (13), soil-slope sample (13) is also provided with copper electrodes probe (14), copper electrodes probe (14) is connected with electrical prospecting apparatus (15), and Temperature Humidity Sensor (11) is connected with data acquisition unit (4).
2. the alternation of wetting and drying fracture measuring device of a kind of indoor soil-slope model according to claim 1, it is characterized in that, described simulated rainfall system comprises the PVC simulated rainfall pipeline group (8) being fixed on ceiling by setscrew (10), the bottom of PVC simulated rainfall pipeline group (8) is provided with simulated precipitation water delivering orifice (7), and PVC simulated rainfall pipeline group (8) is communicated with constant head tank (6) by rubber hose (9).
3. the alternation of wetting and drying fracture measuring device of a kind of indoor soil-slope model according to claim 1, is characterized in that, described simulating sun lighting system is infrared heater (12).
4. the alternation of wetting and drying fracture measuring device of a kind of indoor soil-slope model according to claim 1, is characterized in that, described copper electrodes probe (14) is multiple and equidistant insertion soil-slope sample (13).
5. the alternation of wetting and drying fracture measuring device of a kind of indoor soil-slope model according to claim 4, is characterized in that, described copper electrodes probe (14) is 60, and the spacing between each copper electrodes probe (14) is not less than 2cm.
6. the alternation of wetting and drying fracture measuring device of a kind of indoor soil-slope model according to claim 1, it is characterized in that, described soil-slope sample (13) is multilayer, Temperature Humidity Sensor (11) is arranged between each layer of soil-slope sample (13), the sidewall of organic glass model groove (1) offers round hole (5), conductor wire (3) one end is connected with Temperature Humidity Sensor (11), and the other end is connected with data acquisition unit (4) through round hole (5).
7. the alternation of wetting and drying fracture measuring device of a kind of indoor soil-slope model according to claim 1, is characterized in that, described soil-slope sample (13) bottom pad is provided with wooden cushion block (2).
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| CN106405051A (en) * | 2016-09-30 | 2017-02-15 | 水利部交通运输部国家能源局南京水利科学研究院 | Simulation test device for dam slope of reservoir under condition of sudden turn of drought and flood and test method |
| CN107247128A (en) * | 2017-05-16 | 2017-10-13 | 华北水利水电大学 | The model test apparatus of retrogressive landslide sliding process under real-time measurement condition of raining |
| CN109100481A (en) * | 2017-06-21 | 2018-12-28 | 武汉轻工大学 | Characteristics of fracture development integrated experiment device under a kind of closed soil body drying and watering cycle |
| CN109521180A (en) * | 2018-10-09 | 2019-03-26 | 水利部交通运输部国家能源局南京水利科学研究院 | Cold area's expansive soil channel deterioration is broken to because of analysis method and application |
| CN110749517A (en) * | 2019-10-25 | 2020-02-04 | 中南大学 | Model test device and method for dynamic characteristics of roadbed soil under circulating humidification effect |
| CN110988302A (en) * | 2019-12-13 | 2020-04-10 | 东南大学 | Model device of vertical isolation engineering barrier based on dry-wet cycle and use method and application thereof |
| CN112964855A (en) * | 2021-02-05 | 2021-06-15 | 合肥工业大学 | Test device and test method for rainfall-evaporation circulation and soil fracture characteristic measurement |
| 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 |
| CN113406150A (en) * | 2021-06-18 | 2021-09-17 | 湖南致力工程科技有限公司 | Rainfall process active ground electric field time-space response simulation experiment device |
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| CN116298207A (en) * | 2023-04-03 | 2023-06-23 | 水利部交通运输部国家能源局南京水利科学研究院 | Device and method for testing instability of slope with fissure under rainfall and groundwater level coupling |
| CN116559048A (en) * | 2023-05-12 | 2023-08-08 | 中国科学院武汉岩土力学研究所 | Expansive soil three-dimensional fracture space-time evolution model test method |
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- 2015-08-05 CN CN201520582754.2U patent/CN204832095U/en not_active Expired - Fee Related
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| CN106405051A (en) * | 2016-09-30 | 2017-02-15 | 水利部交通运输部国家能源局南京水利科学研究院 | Simulation test device for dam slope of reservoir under condition of sudden turn of drought and flood and test method |
| CN107247128A (en) * | 2017-05-16 | 2017-10-13 | 华北水利水电大学 | The model test apparatus of retrogressive landslide sliding process under real-time measurement condition of raining |
| CN109100481A (en) * | 2017-06-21 | 2018-12-28 | 武汉轻工大学 | Characteristics of fracture development integrated experiment device under a kind of closed soil body drying and watering cycle |
| CN109521180A (en) * | 2018-10-09 | 2019-03-26 | 水利部交通运输部国家能源局南京水利科学研究院 | Cold area's expansive soil channel deterioration is broken to because of analysis method and application |
| CN110749517A (en) * | 2019-10-25 | 2020-02-04 | 中南大学 | Model test device and method for dynamic characteristics of roadbed soil under circulating humidification effect |
| CN110988302B (en) * | 2019-12-13 | 2022-02-22 | 东南大学 | Model device of vertical isolation engineering barrier based on dry-wet cycle and use method and application thereof |
| CN110988302A (en) * | 2019-12-13 | 2020-04-10 | 东南大学 | Model device of vertical isolation engineering barrier based on dry-wet cycle and use method and application thereof |
| CN112964855A (en) * | 2021-02-05 | 2021-06-15 | 合肥工业大学 | Test device and test method for rainfall-evaporation circulation and soil fracture characteristic measurement |
| CN112964855B (en) * | 2021-02-05 | 2023-02-10 | 合肥工业大学 | Test device and test method for rainfall-evaporation circulation and soil fracture characteristic measurement |
| CN113030435B (en) * | 2021-03-04 | 2024-06-04 | 西安建筑科技大学 | Soil body vertical crack model observation test device and test 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 |
| CN113406150A (en) * | 2021-06-18 | 2021-09-17 | 湖南致力工程科技有限公司 | Rainfall process active ground electric field time-space response simulation experiment device |
| CN113970466A (en) * | 2021-09-23 | 2022-01-25 | 中国电建集团华东勘测设计研究院有限公司 | Device and method for manufacturing large-scale direct shear test sample of coarse-grained soil under action of on-site dry-wet cycle |
| CN114544700A (en) * | 2022-02-22 | 2022-05-27 | 三峡大学 | Device and method for testing heat conductivity coefficient of mass concrete |
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| CN116559048A (en) * | 2023-05-12 | 2023-08-08 | 中国科学院武汉岩土力学研究所 | Expansive soil three-dimensional fracture space-time evolution model test method |
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| CN116559048B (en) * | 2023-05-12 | 2024-04-30 | 中国科学院武汉岩土力学研究所 | Expansive soil three-dimensional fracture space-time evolution model test method |
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