CN104458339A - Fixed depth pore water monitoring sampler and sampling method - Google Patents
Fixed depth pore water monitoring sampler and sampling method Download PDFInfo
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- CN104458339A CN104458339A CN201410624646.7A CN201410624646A CN104458339A CN 104458339 A CN104458339 A CN 104458339A CN 201410624646 A CN201410624646 A CN 201410624646A CN 104458339 A CN104458339 A CN 104458339A
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Abstract
The invention relates to the field of soil detection and in particular relates to a fixed depth pore water sampler and a sampling method, aiming at solving the problems that synchronization of measuring and sampling is difficultly ensured because the measuring and sampling operations in a conventional pore water monitoring sampler are separately performed, only one pore water detection sample can be detected in soil of the same depth, and the detection accuracy rate is low. According to the sampler disclosed by the invention, a tray is horizontally arranged; four detecting rods are vertically inserted into the tray, are fixed by virtue of depth fixing nuts and are uniformly arranged; a drill bit is arranged on the end face at the lower end of each detecting rod; an inner cavity is formed in the lower end of each detecting rod; one inner cavity is a monitoring cavity in which a monitoring device is arranged; the other three inner cavities are sampling cavities in the outer side walls of which multiple perforations are formed; each sampling cavity is internally communicated with a water absorption tube; and the monitoring device is connected with a probe cable. The sampler and the sampling method disclosed by the invention are used for pore water detection.
Description
Technical field
The present invention relates to Soil Testing, be specifically related to a kind of depthkeeping pore water sampler and the method for sampling.
Background technology
Soil or Sediment Pore Water, as soil or sedimental important component, take part in soil or the inner material recycle process of carrying out of sediment, as the migration of soluble substance, the dissolving, mineralising, nitration denitrification etc. of mineral.Due to the physicochemical property of pore water and composition responsive to environmental change response, therefore original position Accurate Determining and sampling have decisive action for analysis result.Be destructive to the sampling of pore water traditionally, soil or sediment excavated, send laboratory centrifugal, obtain the soil liquid or Sediment Pore Water sample, then utilize instrument and equipment to measure, being difficult to repetition, to monitor the pore water of this point continuously dynamic.Occurred non-destructive device in recent years, inserted in soil or sediment, complete in-situ monitoring and hole water sampling respectively by probe and pre-buried sampling thief, this kind of device separately carries out owing to measuring and sampling, and is difficult to the homogeneity guaranteeing the two.
Summary of the invention
The present invention solves the mensuration of existing pore water monitoring sampling thief and sampling is separately carried out, so be difficult to the homogeneity guaranteeing the two, and the pore water of same deep soil detects water sample once can only detect one, the problem that the accuracy rate detected is low, and then a kind of depthkeeping pore water sampler and the method for sampling are proposed.
The present invention is the technical scheme taked that solves the problem: a kind of depthkeeping pore water monitoring sampling thief of the present invention comprises pallet, depthkeeping nut, suction hose, probe cable, four feeler levers and four drill bits, pallet is horizontally disposed with, feeler lever to be vertically inserted on pallet and to be fixed by depthkeeping nut, four uniform settings of feeler lever, the lower end surface of each feeler lever is provided with a drill bit, the lower end of each feeler lever is provided with an inner chamber, one of them inner chamber is the monitoring chamber being provided with monitoring device, other three inner chambers are sampling cavity lateral wall being provided with multiple perforation, a suction hose is all communicated with in each sampling cavity, monitoring device is connected with probe cable.
Adopt depthkeeping pore water to monitor a method of sampling for sampling thief, comprise the steps:
Step one, adjustment depthkeeping nut, make four feeler levers be in the same degree of depth;
Step 2, press down handle, each drill bit is vertically inserted tested point soil or sediment lentamente, after pallet touches ground, stop pressing down and Location Sample;
Step 3, wait 5 ~ 30min according to different soils and sedimental water signature, make water balance inside and outside sampling cavity and monitoring chamber, open the main frame of each monitoring device afterwards, measure the data such as the temperature of this sampled point, pH value, dissolved oxygen DO and oxidation-reduction potential;
Step 4, utilize syringe to be extracted the pore water stored in three sampling cavities by suction hose, as three Duplicate Samples or using these three samples mixing as a water sample;
Other index of experimental determination water sample is sent after step 5, refrigeration or other pre-treatment.
The invention has the beneficial effects as follows: present invention employs four feeler levers and be arranged on a disk, regulate depthkeeping nut, four feeler levers are made to be in sustained height, the lower surface of disk can with the laminating of Land leveling, make the degree of depth on four feeler levers insertion ground identical, the pore water of same deep soil can be detected, and the hole water sample of same deep soil can duplicate detection, improve the accuracy rate 90% of detection, and monitoring device is set, monitoring and sampling can be carried out simultaneously, ensure that the homogeneity of the two.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention.
Embodiment
Embodiment one: composition graphs 1 illustrates present embodiment, described in present embodiment, a kind of depthkeeping pore water monitoring sampling thief comprises pallet 1, depthkeeping nut 2, suction hose 3, probe cable 4, four feeler levers 5 and four drill bits 6, pallet 1 is horizontally disposed with, feeler lever 5 to be vertically inserted on pallet 1 and to be fixed by depthkeeping nut 2, four uniform settings of feeler lever 5, the lower end surface of each feeler lever 5 is provided with a drill bit 6, the lower end of each feeler lever 5 is provided with an inner chamber, one of them inner chamber is the monitoring chamber 8 being provided with monitoring device 7, other three inner chambers are the sampling cavity 9 lateral wall being provided with multiple perforation, a suction hose 3 is all communicated with in each sampling cavity 9, monitoring device 7 is connected with probe cable 4.
In present embodiment, monitoring device 7 comprises thermometer, pH meter, dissolved oxygen DO and redox point position probe.
Embodiment two: composition graphs 1 illustrates present embodiment, described in present embodiment, a kind of depthkeeping pore water monitoring sampling thief also comprises handle 10, and handle 10 is arranged on the center of pallet 1 upper surface.Setting like this, can be pressed into soil by handle 10 by pallet 1.Other compositions are identical with embodiment one with annexation.
Embodiment three: composition graphs 1 illustrates present embodiment, the lateral wall of four feeler levers 5 described in present embodiment is provided with scale.Setting like this, can according to different soil or sedimental pore water testing requirement, adjusts feeler lever 5 and is pressed into the degree of depth in soil.Other compositions are identical with embodiment two with annexation.
Embodiment four: composition graphs 1 illustrates present embodiment, the madial wall of sampling cavity 9 described in present embodiment is provided with potter's clay filter membrane 11, and the thickness of potter's clay filter membrane 11 is 0.45 μm.Setting like this, potter's clay filter membrane 11 can prevent other foreign material except pore water from entering sampling cavity 9.Other compositions are identical with embodiment three with annexation.
Embodiment five: composition graphs 1 illustrates present embodiment, 1, four feeler levers 5 of pallet described in present embodiment and four drill bits 6 make by stainless steel material.Setting like this, because all containing moisture in soil and sediment, selects stainless steel material to make pallet 1, feeler lever 5 and probe 6, can prevent its corrosion, extend the serviceable life of sampling thief.Other compositions are identical with embodiment one with annexation.
Embodiment six: composition graphs 1 illustrates present embodiment, described in present embodiment, a kind of method of sampling adopting depthkeeping pore water to monitor sampling thief, comprises the steps:
Step one, adjustment depthkeeping nut 2, make four feeler levers 5 be in the same degree of depth;
Step 2, press down handle 10, each drill bit 6 is vertically inserted tested point soil or sediment lentamente, after pallet 1 touches ground, stop pressing down and Location Sample;
Step 3, wait 5 ~ 30min according to different soils and sedimental water signature, make water balance inside and outside sampling cavity 9 and monitoring chamber 8, open the main frame of each monitoring device 7 afterwards, measure the data such as the temperature of this sampled point, pH value, dissolved oxygen DO and oxidation-reduction potential;
Step 4, utilize syringe to be extracted the pore water stored in three sampling cavities 9 by suction hose, as three Duplicate Samples or using these three samples mixing as a water sample;
Other index of experimental determination water sample is sent after step 5, refrigeration or other pre-treatment.
Claims (6)
1. a depthkeeping pore water monitoring sampling thief, it is characterized in that: described a kind of depthkeeping pore water monitoring sampling thief comprises pallet (1), depthkeeping nut (2), suction hose (3), probe cable (4), four feeler levers (5) and four drill bits (6), pallet (1) is horizontally disposed with, feeler lever (5) be vertically inserted into pallet (1) go up and pass through depthkeeping nut (2) fix, the uniform setting of four feeler levers (5), the lower end surface of each feeler lever (5) is provided with a drill bit (6), the lower end of each feeler lever (5) is provided with an inner chamber, one of them inner chamber is for being provided with the monitoring chamber (8) of monitoring device (7), other three inner chambers are the sampling cavity (9) lateral wall being provided with multiple perforation, a suction hose (3) is all communicated with in each sampling cavity (9), monitoring device (7) is connected with probe cable (4).
2. a kind of depthkeeping pore water monitoring sampling thief according to claim 1, it is characterized in that: described a kind of depthkeeping pore water monitoring sampling thief also comprises handle (10), and handle (10) is arranged on the center of pallet (1) upper surface.
3. a kind of depthkeeping pore water monitoring sampling thief according to claim 2, is characterized in that: the lateral wall of four feeler levers (5) is provided with scale.
4. a kind of depthkeeping pore water monitoring sampling thief according to claim 3, it is characterized in that: the madial wall of sampling cavity (9) is provided with potter's clay filter membrane (11), the thickness of potter's clay filter membrane (11) is 0.45 μm.
5. a kind of depthkeeping pore water monitoring sampling thief according to claim 1, is characterized in that: described pallet (1), four feeler levers (5) and four drill bits (6) make by stainless steel material.
6. adopt depthkeeping pore water to monitor a method of sampling for sampling thief, it is characterized in that: comprise the steps:
Step one, adjustment depthkeeping nut (2), make four feeler levers (5) be in the same degree of depth;
Step 2, press down handle (10), each drill bit (6) is vertically inserted tested point soil or sediment lentamente, after pallet (1) touches ground, stop pressing down and Location Sample;
Step 3, wait 5 ~ 30min according to different soils and sedimental water signature, make sampling cavity (9) and the inside and outside water balance of monitoring chamber (8), open the main frame of each monitoring device (7) afterwards, measure the data such as the temperature of this sampled point, pH value, dissolved oxygen DO and oxidation-reduction potential;
Step 4, utilize syringe to be extracted the pore water stored in three sampling cavities (9) by suction hose, as three Duplicate Samples or using these three samples mixing as a water sample;
Other index of experimental determination water sample is sent after step 5, refrigeration or other pre-treatment.
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| CN201410624646.7A CN104458339A (en) | 2014-11-07 | 2014-11-07 | Fixed depth pore water monitoring sampler and sampling method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104990765A (en) * | 2015-07-10 | 2015-10-21 | 华南理工大学 | Instrument and method for monitoring inshore and estuary sedimentary layer pore water |
| CN105092805A (en) * | 2015-06-08 | 2015-11-25 | 成都欧迅海洋工程装备科技有限公司 | Water quality detection system based on in-situ pore water collecting water column |
| CN105259217A (en) * | 2015-11-27 | 2016-01-20 | 南昌工程学院 | Overlying water salt content monitoring device for sediment of farmland drainage ditch |
| CN105547757A (en) * | 2015-11-27 | 2016-05-04 | 北京师范大学 | In situ deposit pore water grading active sampler |
| CN105973648A (en) * | 2016-04-21 | 2016-09-28 | 吉林建筑大学 | Soil pore water sampling method |
| CN108132286A (en) * | 2017-12-20 | 2018-06-08 | 中国科学院东北地理与农业生态研究所 | A kind of probe for being used to measure wetland different depth soil redox potential |
| CN109507381A (en) * | 2018-11-29 | 2019-03-22 | 福建力普检测有限公司 | A kind of mudflat seawater water monitoring device |
| CN112033754A (en) * | 2020-09-23 | 2020-12-04 | 中国科学院东北地理与农业生态研究所 | Sand riverbed sediment pore water collection device and manufacturing method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092805A (en) * | 2015-06-08 | 2015-11-25 | 成都欧迅海洋工程装备科技有限公司 | Water quality detection system based on in-situ pore water collecting water column |
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| CN105259217A (en) * | 2015-11-27 | 2016-01-20 | 南昌工程学院 | Overlying water salt content monitoring device for sediment of farmland drainage ditch |
| CN105547757A (en) * | 2015-11-27 | 2016-05-04 | 北京师范大学 | In situ deposit pore water grading active sampler |
| CN105973648A (en) * | 2016-04-21 | 2016-09-28 | 吉林建筑大学 | Soil pore water sampling method |
| CN108132286A (en) * | 2017-12-20 | 2018-06-08 | 中国科学院东北地理与农业生态研究所 | A kind of probe for being used to measure wetland different depth soil redox potential |
| CN109507381A (en) * | 2018-11-29 | 2019-03-22 | 福建力普检测有限公司 | A kind of mudflat seawater water monitoring device |
| CN109507381B (en) * | 2018-11-29 | 2019-10-11 | 福建力普检测有限公司 | A kind of mudflat seawater water monitoring device |
| CN112033754A (en) * | 2020-09-23 | 2020-12-04 | 中国科学院东北地理与农业生态研究所 | Sand riverbed sediment pore water collection device and manufacturing method thereof |
| CN112033754B (en) * | 2020-09-23 | 2024-05-17 | 中国科学院东北地理与农业生态研究所 | Sediment pore water collection device of sandy river bed and manufacturing method thereof |
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