CN113109543A - Compaction roadbed model soil body moisture migration measuring device - Google Patents
Compaction roadbed model soil body moisture migration measuring device Download PDFInfo
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- CN113109543A CN113109543A CN202110291436.0A CN202110291436A CN113109543A CN 113109543 A CN113109543 A CN 113109543A CN 202110291436 A CN202110291436 A CN 202110291436A CN 113109543 A CN113109543 A CN 113109543A
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- model
- roadbed
- water
- soil body
- iron sheet
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- 239000002689 soil Substances 0.000 title claims abstract description 30
- 238000013508 migration Methods 0.000 title claims abstract description 26
- 230000005012 migration Effects 0.000 title claims abstract description 26
- 238000005056 compaction Methods 0.000 title claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 84
- 229910052742 iron Inorganic materials 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000005507 spraying Methods 0.000 claims abstract description 15
- 238000012360 testing method Methods 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 239000000725 suspension Substances 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000007921 spray Substances 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 238000005259 measurement Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 claims 1
- 238000004088 simulation Methods 0.000 claims 1
- 238000011160 research Methods 0.000 description 7
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Classifications
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
-
- 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
- G01N15/082—Investigating permeability by forcing a fluid through a sample
Abstract
The invention provides a device for measuring water migration of soil body of a compacted roadbed model, which comprises: water tank, knob, horizon bar, guide rail, scale, hang pole, pulley, motor, cushion cap, steel wire, circular iron plate, spray pipe, annular iron sheet, humidity transducer, road bed model, wherein: the knob is used for adjusting the heights of the horizontal rod and the guide rail, so that different falling height differences of the round iron blocks can be ensured, and tamping with different energies can be realized; the suspension rods are positioned at different horizontal positions by the guide rails, so that the tamping of the roadbed model at different horizontal positions is realized to complete the manufacture of the model. The water spraying pipes are connected with the water tank and comprise left and right water spraying pipes for spraying water to the roadbed model so as to simulate rainfall; the annular iron sheet is fixed at the bottom of the round iron block through a nut, is released instantly when in use and is used for marking and destroying the dug hole on the surface of the roadbed so as to embed the humidity sensor; and the humidity sensor is used for measuring the humidity of different positions of the roadbed model body under the rainfall condition, so that the moisture migration test is realized.
Description
Technical Field
The invention belongs to the technical field of geotechnical tests, and particularly relates to a device and a method for measuring water migration of a soil body of a compacted roadbed model.
Background
The model test research is one of important means for discussing a moisture migration response mechanism of a soil body-roadbed structure system, the model manufacture is a key for judging whether the model test can be successful, the reasonable compaction relation of the model soil body has the model manufacture effect, and the achievement of the specified compaction degree through compaction has important scientific research significance and theoretical significance for the model test.
The device for measuring the water migration of the soil body of the compacted roadbed model is a device for realizing the research on the internal water migration rule of the soil body of the roadbed model with the specified compaction degree, and the model manufacture is an important component of a model test. However, the current roadbed soil moisture migration mainly depends on an on-site roadbed test, the cost is high, the realization is not easy, and the research on the moisture migration is influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a device and a method for measuring the water migration of a soil body of a compacted roadbed model, which are used for carrying out the water migration test research of the inner part of a roadbed soil body in the horizontal direction and the vertical direction under the condition of given compactness.
The technical scheme is as follows:
a compaction roadbed model soil body moisture migration measuring device comprises: water tank, knob, horizon bar, guide rail, scale, hang pole, pulley, motor, cushion cap, steel wire, circular iron plate, spray pipe, annular iron sheet, humidity transducer, road bed model, wherein:
the knob is used for adjusting the heights of the horizontal rod and the guide rail, so that different falling height differences of the round iron blocks can be ensured, and tamping with different energies can be realized;
the suspension rods are positioned at different horizontal positions by the guide rails, so that the tamping of the roadbed model surface at different horizontal positions is realized to complete the model manufacturing.
The water spraying pipes are connected with the water tank, comprise left and right water spraying pipes and are used for spraying water to the roadbed model so as to simulate rainfall;
the annular iron sheet is fixed at the bottom of the round iron block through a nut, is released instantly when in use and is used for marking and destroying the dug hole on the surface of the roadbed so as to embed the humidity sensor; and the humidity sensor is used for measuring the humidity of different positions of the roadbed model body under the rainfall condition, so that the moisture migration test is realized.
During the test, a roadbed model needing to be compacted is placed on the bottom plate, the annular iron sheet is taken off, the pulley is positioned at a certain height by adjusting the knob, the motor is started, the circular iron block is lifted to a certain height, then the model soil body is put down, one-time tamping compaction work of the model soil body is completed, the circular iron block is lifted, the suspension rod is moved to complete the compaction work of the soil body at the other part of the roadbed model, the tamping compaction is sequentially and circularly performed until the specified compaction degree is reached, the annular iron sheet is installed, the annular iron sheet is combined with the graduated scale and the guide rail to ensure that the annular iron sheet is just opposite to the position where the humidity sensor needs to be embedded, the roadbed surface is put down to be damaged, and the other tools are used for completing the digging and burying work, then the annular iron sheet is taken off and tamped again, the layout work of all the sensors is completed in sequence, the manufacture of the roadbed model is completed, and (4) simulating rainfall by spraying water, and finally realizing the water migration measurement of the soil body of the compacted roadbed model.
The device disclosed by the invention is simple in structure, and the sensor is embedded at a reasonable position, and the test research on the internal water migration of the roadbed soil body under the rainfall condition is completed by manufacturing the soil body roadbed model with the given compactness, so that the device has certain reference significance on the internal water migration research of the conventional highway roadbed.
Drawings
FIG. 1 is a schematic structural diagram of a device for measuring water migration of soil mass of a compacted roadbed model
Description of reference numerals:
1-water tank, 2-knob, 3-horizontal rod, 4-guide rail, 5-graduated scale, 6-suspension rod, 7-pulley, 8-motor, 9-bearing platform, 10-steel wire, 11-round iron block, 12-water spray pipe, 13-annular iron sheet, 14-humidity sensor, 15-roadbed model.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following describes in detail a compacted roadbed model soil moisture migration measuring device provided by the present invention with reference to the following embodiments. The following examples are intended to illustrate the invention only and are not intended to limit the scope of the invention.
Example 1
Referring to fig. 1, a compacted roadbed model soil body moisture migration measuring device comprises: the device comprises a water tank 1, a knob 2, a horizontal rod 3, a guide rail 4, a graduated scale 5, a suspension rod 6, a pulley 7, a motor 8, a bearing platform 9, a steel wire 10, a round iron block 11, a water spray pipe 12, an annular iron sheet 13, a humidity sensor 14 and a roadbed model 15.
The knob 2 is used for adjusting the heights of the horizontal rod 3 and the guide rail 4, so that different falling height differences of the round iron blocks 11 can be ensured, and tamping with different energies can be realized;
the guide rails 4 enable the suspension rods 6 to be in different horizontal positions, so that tamping of different horizontal positions on the surface of the roadbed model is realized to complete the manufacturing of the model.
The water spraying pipes 12 are connected with the water tank 1 and comprise left and right water spraying pipes for spraying water to the roadbed model to simulate rainfall;
the annular iron sheet 13 is fixed at the bottom of the round iron block 11 through a nut, is released instantly when in use, and is used for marking and destroying a dug hole on the surface of the roadbed so as to embed the humidity sensor 14; the humidity sensor 14 completes the humidity measurement of different positions of the roadbed model under the rainfall condition, and the moisture migration test is realized.
During the test, a roadbed model needing to be compacted is placed on the bottom plate, the annular iron sheet is taken off, the pulley is positioned at a certain height by adjusting the knob, the motor is started, the circular iron block is lifted to a certain height, then the model soil body is put down, one-time tamping compaction work of the model soil body is completed, the circular iron block is lifted, the suspension rod is moved to complete the compaction work of the soil body at the other part of the roadbed model, the tamping compaction is sequentially and circularly performed until the specified compaction degree is reached, the annular iron sheet is installed, the annular iron sheet is combined with the graduated scale and the guide rail to ensure that the annular iron sheet is just opposite to the position where the humidity sensor needs to be embedded, the roadbed surface is put down to be damaged, and the other tools are used for completing the digging and burying work, then the annular iron sheet is taken off and tamped again, the layout work of all the sensors is completed in sequence, the manufacture of the roadbed model is completed, and (4) simulating rainfall by spraying water, and finally realizing the water migration measurement of the soil body of the compacted roadbed model.
The present invention is not limited to the above-described examples, and various changes can be made without departing from the spirit and scope of the present invention within the knowledge of those skilled in the art.
Claims (2)
1. The utility model provides a compaction road bed model soil body moisture migration measuring device which characterized in that includes: water tank, knob, horizon bar, guide rail, scale, hang pole, pulley, motor, cushion cap, steel wire, circular iron plate, spray pipe, annular iron sheet, humidity transducer, road bed model, wherein:
the knob is used for adjusting the heights of the horizontal rod and the guide rail, so that different falling height differences of the round iron blocks are ensured, and tamping with different energies is realized;
the suspension rods are positioned at different horizontal positions by the guide rails, so that the tamping of the roadbed model surface at different horizontal positions is realized to complete the model manufacturing.
The water spraying pipes are connected with the water tank, comprise left and right water spraying pipes and are used for spraying water to the roadbed model so as to simulate rainfall;
the annular iron sheet is fixed at the bottom of the round iron block through a nut, is released instantly when in use and is used for marking and destroying the dug hole on the surface of the roadbed so as to embed the humidity sensor; and the humidity sensor is used for measuring the humidity of different positions of the roadbed model body under the rainfall condition, so that the moisture migration test is realized.
2. The method for measuring the soil moisture migration measuring device of the compacted roadbed model as claimed in claim 1, wherein the roadbed model to be compacted is placed on the bottom plate, the annular iron sheet is removed, the pulley is positioned at a certain height by adjusting the knob, the motor is started to lift the circular iron block to a certain height, then the roadbed model is placed down, one-time tamping and compacting of the soil body of the model is completed, the circular iron block is lifted, the suspension rod is moved to complete compacting of the soil body at another position of the roadbed model, tamping and compacting are sequentially and circularly performed until the specified compacting degree is reached, the annular iron sheet is installed, the annular iron sheet is just opposite to the position where the humidity sensor needs to be embedded by combining the graduated scale and the guide rail, the roadbed surface is damaged by placing, excavation and embedding work is completed by other tools, the annular iron sheet is removed and compacted again, and all sensors are sequentially arranged, and (4) finishing the manufacture of the roadbed model, finishing the rainfall simulation by spraying water, and finally realizing the water migration measurement of the soil body of the compacted roadbed model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110291436.0A CN113109543A (en) | 2021-03-18 | 2021-03-18 | Compaction roadbed model soil body moisture migration measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110291436.0A CN113109543A (en) | 2021-03-18 | 2021-03-18 | Compaction roadbed model soil body moisture migration measuring device |
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| Publication Number | Publication Date |
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| CN113109543A true CN113109543A (en) | 2021-07-13 |
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| CN202110291436.0A Pending CN113109543A (en) | 2021-03-18 | 2021-03-18 | Compaction roadbed model soil body moisture migration measuring device |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675238A (en) * | 2013-12-27 | 2014-03-26 | 成都理工大学 | Multifunctional rainfall landslide indoor testing device |
| CN206708709U (en) * | 2017-03-28 | 2017-12-05 | 马鞍山华东回转支承有限公司 | A kind of high-precision rotary supports oiling device |
| CN108303329A (en) * | 2018-02-02 | 2018-07-20 | 山西省交通科学研究院 | A kind of humidification soil sample torsional strength test device and test method |
| CN208455600U (en) * | 2018-01-18 | 2019-02-01 | 武福建 | A kind of subgrade construction ramming compaction apparatus |
| CN208962162U (en) * | 2018-11-13 | 2019-06-11 | 祝彦付 | It is a kind of to have the board punch device for collecting waste material function |
| CN111707533A (en) * | 2020-07-02 | 2020-09-25 | 长安大学 | Soil slope surface model, manufacturing method, erosion test device and method |
| CN111982868A (en) * | 2020-07-21 | 2020-11-24 | 河海大学 | Device and method for simulating migration of roadbed water vapor under freeze thawing-load coupling action |
| CN112496395A (en) * | 2020-12-11 | 2021-03-16 | 安徽科祖科技信息咨询有限公司 | Plate punching machine |
-
2021
- 2021-03-18 CN CN202110291436.0A patent/CN113109543A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675238A (en) * | 2013-12-27 | 2014-03-26 | 成都理工大学 | Multifunctional rainfall landslide indoor testing device |
| CN206708709U (en) * | 2017-03-28 | 2017-12-05 | 马鞍山华东回转支承有限公司 | A kind of high-precision rotary supports oiling device |
| CN208455600U (en) * | 2018-01-18 | 2019-02-01 | 武福建 | A kind of subgrade construction ramming compaction apparatus |
| CN108303329A (en) * | 2018-02-02 | 2018-07-20 | 山西省交通科学研究院 | A kind of humidification soil sample torsional strength test device and test method |
| CN208962162U (en) * | 2018-11-13 | 2019-06-11 | 祝彦付 | It is a kind of to have the board punch device for collecting waste material function |
| CN111707533A (en) * | 2020-07-02 | 2020-09-25 | 长安大学 | Soil slope surface model, manufacturing method, erosion test device and method |
| CN111982868A (en) * | 2020-07-21 | 2020-11-24 | 河海大学 | Device and method for simulating migration of roadbed water vapor under freeze thawing-load coupling action |
| CN112496395A (en) * | 2020-12-11 | 2021-03-16 | 安徽科祖科技信息咨询有限公司 | Plate punching machine |
Non-Patent Citations (1)
| Title |
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| 柳志军: "压实方式影响路基湿度场演变规律相似模拟试验研究", 《岩土力学》 * |
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Application publication date: 20210713 |