CN108519255A - A kind of detection method for acquiring radon consistence in soil - Google Patents
A kind of detection method for acquiring radon consistence in soil Download PDFInfo
- Publication number
- CN108519255A CN108519255A CN201810325678.5A CN201810325678A CN108519255A CN 108519255 A CN108519255 A CN 108519255A CN 201810325678 A CN201810325678 A CN 201810325678A CN 108519255 A CN108519255 A CN 108519255A
- Authority
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- China
- Prior art keywords
- soil
- shell
- thieff hatch
- drill rod
- activated carbon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2294—Sampling soil gases or the like
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
- G01T7/02—Collecting means for receiving or storing samples to be investigated and possibly directly transporting the samples to the measuring arrangement; particularly for investigating radioactive fluids
Abstract
The present invention provides a kind of detection method for acquiring radon consistence in soil, includes the following steps：1. choosing sampled point：Several sampled points are laid on soil to be measured, several sampled points are in latticed arrangement；2. beating thieff hatch：Thieff hatch is beaten in soil by perforating mechanism, 3. places activated carbon sampler and fills thieff hatch；4. recording test data；Activated carbon sampler is placed in soil to be removed and placed in emanometer after a period of time and measures；5. carrying out analyzing processing to test data.The perforating mechanism of the present invention coordinates with activated carbon sampler, the step of thieff hatch and landfill thieff hatch, is beaten in optimization, reduce the exposed area of thieff hatch and shorten the exposure duration of thieff hatch, effectively prevent the radon gas in soil from thieff hatch loss, to improve the accuracy of testing result.
Description
Technical field
The present invention relates to nuclear radiation detection field more particularly to a kind of detection methods for acquiring radon consistence in soil.
Background technology
Radon is a kind of radioactivity inert gas, and the alpha ray generated in decay process can be carcinogenic, is the World Health Organization
One of the 19 kinds of carcinogenic factors assert.Under normal circumstances, naturally occurring radioactive substance hardly enters human body, but from ground,
Soil goes to the radon gas in air, it is easy to enter lung with the breathing of human body, and as whole body is moved towards in the flowing of blood,
Cell and molecular structure are destroyed, to be damaged to human body.It is both domestic and external studies have shown that subsurface geological structure is to civil buildings
The influence of low layer Indoor Niton Pollution is the most serious, what the Ministry of Construction of China promulgated《Civil building engineering indoor environmental pollution control rule
Model》Middle Compulsory Feature must carry out Soil-crop system detection when being checked and accepted to civil building engineering.
Measurement method includes mainly that instantaneous sampling mensuration, continuous sampling mensuration and accumulated samples mensuration, accumulation are adopted
Sample mensuration is usually used in measuring the radon consistence in soil, and activated carbon mensuration is for measuring the common tired of Soil-crop system
Product sampled measurements method, principle is that activated carbon sampler is embedded in underground for a period of time, further takes out activated carbon sampler, and will live
Property charcoal sampler, which is put into measuring instrument and measures the decay daughter of its radon, radiates gamma-ray intensity, to understand radon concentration.It is existing
Have in detection process and thieff hatch is got in soil using drill rod, then extracts drill rod and activated carbon sampler is put into thieff hatch
In, if activated carbon sampler is not inserted into thieff hatch in time after drill rod extraction during this, since thieff hatch has one
Fixed depth and diameter causes a part of radon gas in thieff hatch to spill into air, thus causes to take out the radon gas reduction collected,
Influence the accuracy of testing result.Such as a kind of adopting for the Chinese new patent 201420788092.X Soil Radon detectors proposed
Sample device, drill bit and thief rod are combined into one, and are shortened the time for placing sampler, are avoided radon gas loss, improve detection efficiency.
However this is suitable for instantaneous sampling mensuration, is not appropriate for needing the accumulated samples for placing activated carbon sampler for a long time to measure
Method.
In view of the above-mentioned problems, the applicant furthers investigate in view of the above-mentioned drawbacks in the prior art, there is this case generation then.
Invention content
The technical problem to be solved in the present invention is to provide a kind of detection method for acquiring radon consistence in soil, effectively
The radon gas in soil is reduced from thieff hatch loss, improves the accuracy of testing result.
The invention is realized in this way：
There is provided a kind of detection method for acquiring radon consistence in soil, wherein include the following steps：
1. choosing sampled point：Several sampled points are laid on soil to be measured, several sampled points are in latticed arrangement；
2. beating thieff hatch：Beat thieff hatch in soil by perforating mechanism, the perforating mechanism include drill rod, shell and
The Rong Shaqi of sand is received for storing up, and the inner surface and the outer surface of the shell is respectively equipped with the first internal thread and the first external screw thread, should
The lower part of drill rod have the outer surface of tip and drill rod be equipped with matched second external screw thread of the first internal thread, in the appearance sand device
Portion be equipped with the inner surface of through hole and the through hole vertically extended be equipped with in the first external screw thread matched second
Screw thread, the inner surface of the through hole are equipped with the leakage sand mouth extended in left-right direction, and the drill rod and Rong Sha devices are respectively screw connection
It is higher by the level height of the husky mouth of leakage in the level height of the inner surface and the outer surface of shell, and shell upper end, drill rod upper end
Level height is higher by the level height of shell upper end；The shell includes ontology and two panels curved baffle, the two panels curved baffle
The lower end that upper end is hinged on the lower end two panels curved baffle of ontology surrounds punch throat, and the tip of the drill rod and two curved baffles paste
Merge and the tip of tip is exposed downwards across the punch throat, the tip of tip penetrates soil downward, is then hit with iron hammer
The upper end of drill rod, drill rod and shell are absorbed in soil to form thieff hatch, and by the soil got in the husky device of appearance；
3. placing activated carbon sampler and filling thieff hatch：First drill rod is unscrewed upwards to be detached from the shell, with will
Activated carbon sampler is put into the shell, is then rotated up the husky device of the relatively described appearance of shell, at this time the arc gear of shell
Plate is rotated down and rises with the ontology of shell by keeping out for activated carbon sampler, when shell rotates to the leakage sand mouth of Rong Shaqi
Sand starts to leak out from the husky mouth of the leakage, and shell completely disengages appearance Sha Qihou and directly extracts Rong Shaqi out again；
4. recording test data；Activated carbon sampler is removed and placed in emanometer progress after placing a period of time in soil
It measures；
5. carrying out analyzing processing to test data.
Pore-forming situation will influence measurement result, it is preferable that a length of 0.02m-0.04m of diameter of the thieff hatch, thieff hatch
Depth be 0.6m-0.8m, suitable size is conducive to the extraction of activated carbon sampler, and keeps the consistency of activated carbon sampler.
In order to ensure that activated carbon fully adsorbs radon gas, it is preferable that activated carbon sampler is at least placed five days in soil.
It is and existing after adopting the above technical scheme, the present invention relates to a kind of for acquiring the detection method of radon consistence in soil
There is technology to compare, advantageous effect is, perforating mechanism of the invention coordinates with activated carbon sampler, and thieff hatch and landfill are beaten in optimization
The step of thieff hatch, reduces the exposed area of thieff hatch and shortens the exposure duration of thieff hatch, the radon effectivelying prevent in soil
Gas is from thieff hatch loss, to improve the accuracy of testing result.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the side schematic view that drill rod stretches into shell；
Fig. 3 is the side schematic view that drill rod is detached from shell.
Reference sign：
1, drill rod, the 11, second external screw thread, 12, tip；2, shell, the 21, first internal thread, the 22, first external screw thread, 23, this
Body, 24, curved baffle, 25, punch throat；3, Rong Shaqi, the 31, second internal thread, 32, the husky mouth of leakage；4, activated carbon sampler.
Specific implementation mode
In order to describe the technical content, the structural feature, the achieved object and the effect of this invention in detail, below in conjunction with embodiment
And attached drawing is coordinated to be explained in detail.
Referring to Fig.1 shown in -3, the present invention provides a kind of detection method for acquiring radon consistence in soil, wherein including
Following steps：
1. taking sampled point：Several sampled points are laid on soil to be measured, several sampled points are in latticed arrangement, cloth
Point position should be covered as possible on soil to be measured, make measurement more precisely comprehensive.
2. beating thieff hatch：Beat thieff hatch in soil by perforating mechanism, the perforating mechanism include drill rod 1, shell 2 with
And receive the appearance sand device 3 of sand for storing up.The inner surface and the outer surface of the shell 2 is respectively equipped with the first internal thread 21 and the first outer spiral shell
The lower part of line 22, the drill rod 1 has the outer surface of tip 12 and drill rod 1 to be equipped with and 21 matched second external screw thread of the first internal thread
11, the middle part of the appearance sand device 3 be equipped with the through hole and the through hole that vertically extend inner surface be equipped with outside first
22 matched second internal thread 31 of screw thread, the inner surface of the through hole are equipped with the leakage sand mouth 32 extended in left-right direction, the steel
Pricker 1 and Rong Sha devices 3 are respectively screw the inner surface and the outer surface for being connected to shell 2, and specifically, drill rod 1 passes through shell 2 and shell 2
Spiral connects, and the through hole spiral for holding husky device 3 is set in outside shell 2, and the level height of 2 upper end of shell is higher by leakage sand mouth 32
Level height, can will the husky mouth 32 of leakage to avoid gas leakage, hold 3 upper end of husky device level height be higher by 2 upper end of shell level it is high
Degree completes rear casing spiral upper body convenient for punching, and the level height of 1 upper end of drill rod is higher by the level of 3 upper end of shell 2 and Rong Sha devices
Highly, iron hammer can be allowed directly to beat.
The shell 2 includes ontology 23 and two panels curved baffle 24, and the upper end of the two panels curved baffle 24 is hinged on ontology 23
Lower end, the lower end of two panels curved baffle 24 surrounds punch throat 25, and as shown in Figures 2 and 3, two panels curved baffle 24 surrounds a class
Like the structure of round platform, the tip 12 of the drill rod 1 is bonded with two curved baffles 24 and the tip of tip 12 passes through the punching
Mouth 25 exposes downwards, and the tip of tip 12 penetrates soil downward, that is to say, that most sharp tip can be direct by punch throat
Soil is contacted, plays sharp feature in favor of quickly punching, and have the gear power of drill rod, arc, which blocks plate, to be turned upwards
It is dynamic, then hit the upper end of drill rod 1 with iron hammer, drill rod 1 and shell 2 be absorbed in soil to form thieff hatch simultaneously, and will get
Soil is spare in husky device 3 mounted in holding.
3. placing activated carbon sampler and filling thieff hatch 4：First drill rod 1 is unscrewed upwards to be detached from the shell 2, this
When, it is exposed to the area that outer soil erosion only has punch throat 25 so big, the other positions of thieff hatch are blocked by shell 2 will not be sudden and violent
Dew realizes the exposed area for being substantially reduced soil, and then reduces radon gas loss in thieff hatch.With activated carbon sampler 4 put
Enter in the shell 2, then rotate up the husky device of the appearance relatively of shell 23, slowly in uphill process shell 2 arc gear
Plate 24 is rotated down the then rising of ontology 23 with shell 2 by keeping out for activated carbon sampler 4, and shell 2 rotates to appearance sand device 3
Leakage sand mouth 32 when sand start to leak out from the husky mouth 32 of the leakage, be covered on activated carbon sampler 4, be equivalent to and start landfill and adopt
Sample hole, after shell 2 completely disengages appearance sand device 3, the thieff hatch that script shell 2 occupies soil and formed also has been filled out by soil
It fills, then directly husky device 3 is held in extraction again, in practical operation, holds husky device 3 and is not fully sunk in soil, even largely
It is located on soil, takes up space to soil convenient for holding the extraction of husky device and reducing, greatly improve and bury efficiency and further subtract
The gas of few soil is excessive.Thieff hatch is in more closed state during the entire thieff hatch landfill work of the present invention carries out, i.e.,
With extraneous stuffiness, to which radon gas will not outwardly loss.
4. recording test data；Activated carbon sampler 4 placed in soil be removed and placed in after a period of time emanometer into
Row measures；
5. carrying out analyzing processing to test data.
How the case where pore-forming will influence measurement result, for ensure thieff hatch process in proper order, size it is suitable, it is preferable that
The depth of a length of 0.02m-0.04m of diameter of the thieff hatch, thieff hatch are 0.6m-0.8m.Conducive to taking for activated carbon sampler 4
It puts.
It is highly preferred that ensure the fully absorption radon gas of activated carbon sampler 4, the activated carbon sampler 4 in soil extremely
It places five days less.
To sum up, perforating mechanism of the invention coordinates with activated carbon sampler, and optimization beats thieff hatch, places activated carbon sampler
And the step of landfill thieff hatch, it greatly reduces the exposed area of thieff hatch in entirely sampling process carries out and shortens sampling
The exposure duration in hole effectively prevent the radon gas in soil from thieff hatch loss, to improve radon consistence accuracy of detection.
Example the above is only the implementation of the present invention is not intended to limit the scope of patent protection of the present invention, every utilization
Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content is applied directly or indirectly in other correlations
Technical field, be included within the scope of the present invention.
Claims (3)
1. a kind of detection method for acquiring radon consistence in soil, which is characterized in that include the following steps：
1. choosing sampled point：Several sampled points are laid on soil to be measured, several sampled points are in latticed arrangement；
2. beating thieff hatch：Thieff hatch is beaten in soil by perforating mechanism, the perforating mechanism includes drill rod, shell and is used for
The Rong Shaqi of sand is received in storage, and the inner surface and the outer surface of the shell is respectively equipped with the first internal thread and the first external screw thread, the drill rod
Lower part have the outer surface of tip and drill rod be equipped with matched second external screw thread of the first internal thread, set in the middle part of the appearance sand device
Have the inner surface of the through hole vertically extended and the through hole be equipped with matched second internal thread of the first external screw thread,
The inner surface of the through hole is equipped with the leakage sand mouth extended in left-right direction, and the drill rod and Rong Sha devices are respectively screw and are connected to shell
The inner surface and the outer surface, and the level height of shell upper end is higher by the level height of the husky mouth of leakage, and the level of drill rod upper end is high
Degree is higher by the level height of shell upper end；The shell includes ontology and two panels curved baffle, the upper end hinge of the two panels curved baffle
The lower end for being connected on the lower end of ontology and two panels curved baffle surrounds punch throat, and the tip of the drill rod is bonded with two curved baffles
And the tip of tip is exposed downwards across the punch throat, and the tip of tip penetrates soil downward, then hits steel with iron hammer
The upper end of pricker, drill rod and shell are absorbed in soil to form thieff hatch, and by the soil got in the husky device of appearance；
3. placing activated carbon sampler and filling thieff hatch：First drill rod is unscrewed upwards to be detached from the shell, with i.e. will be active
Charcoal sampler is put into the shell, is then rotated up the husky device of the relatively described appearance of shell, at this time the curved baffle warp of shell
Keeping out for activated carbon sampler is crossed to be rotated down and with the ontology of shell rise, sand when shell rotates to the leakage sand mouth of Rong Shaqi
Start to leak out from the husky mouth of the leakage, shell completely disengages appearance Sha Qihou and directly extracts Rong Shaqi out again；
4. recording test data；Activated carbon sampler is placed in soil to be removed and placed in emanometer after a period of time and is surveyed
Amount；
5. carrying out analyzing processing to test data.
2. a kind of detection method for acquiring radon consistence in soil according to claim 1, which is characterized in that described to adopt
The depth of a length of 0.02m-0.04m of diameter in sample hole, thieff hatch are 0.6m-0.8m.
3. a kind of detection method for acquiring radon consistence in soil according to claim 1, which is characterized in that the work
Property charcoal sampler is at least placed five days in soil.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010489555.2A CN111562147B (en) | 2018-04-12 | 2018-04-12 | Soil radon concentration detection device capable of improving detection accuracy |
| CN201810325678.5A CN108519255B (en) | 2018-04-12 | 2018-04-12 | Detection method for collecting radon concentration in soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810325678.5A CN108519255B (en) | 2018-04-12 | 2018-04-12 | Detection method for collecting radon concentration in soil |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010489555.2A Division CN111562147B (en) | 2018-04-12 | 2018-04-12 | Soil radon concentration detection device capable of improving detection accuracy |
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| Publication Number | Publication Date |
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| CN108519255A true CN108519255A (en) | 2018-09-11 |
| CN108519255B CN108519255B (en) | 2020-07-17 |
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| CN202010489555.2A Active CN111562147B (en) | 2018-04-12 | 2018-04-12 | Soil radon concentration detection device capable of improving detection accuracy |
| CN201810325678.5A Active CN108519255B (en) | 2018-04-12 | 2018-04-12 | Detection method for collecting radon concentration in soil |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111141892A (en) * | 2020-03-06 | 2020-05-12 | 福建日新检测技术服务有限公司 | Soil radon concentration detection device for environment detection |
| CN112098625A (en) * | 2020-09-05 | 2020-12-18 | 宁波弘宇检测有限公司 | Radon gas detection method |
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| CN111141892A (en) * | 2020-03-06 | 2020-05-12 | 福建日新检测技术服务有限公司 | Soil radon concentration detection device for environment detection |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN111562147A (en) | 2020-08-21 |
| CN108519255B (en) | 2020-07-17 |
| CN111562147B (en) | 2022-08-05 |
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