CN112461601A - Inclined underground water sampling method - Google Patents
Inclined underground water sampling method Download PDFInfo
- Publication number
- CN112461601A CN112461601A CN202011273527.3A CN202011273527A CN112461601A CN 112461601 A CN112461601 A CN 112461601A CN 202011273527 A CN202011273527 A CN 202011273527A CN 112461601 A CN112461601 A CN 112461601A
- Authority
- CN
- China
- Prior art keywords
- sampling
- water
- drilling
- drilling machine
- well
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
-
- 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
- G01N33/18—Water
-
- 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
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1418—Depression, aspiration
Abstract
The invention relates to the technical field of groundwater sampling, and aims to provide an inclined groundwater sampling method, which comprises the steps of setting a sampling area and a sampling depth in an area needing groundwater environment investigation; setting drilling points in an area needing underground water environment investigation according to the sampling area and the sampling depth, and drilling from the drilling points by using a drilling machine to form an inclined sampling well; before water sampling, the method also comprises the following steps of placing plugs at positions below the preset sampling depth in the inclined sampling well, and respectively expanding the plugs and enabling the plugs to be in close contact with the well wall of the inclined sampling well; and installing a groundwater sampler, and respectively sampling and detecting the water sample positioned between the two plugs and the water sample above the plug at the uppermost layer position. The method solves the problem that the accuracy of the measurement result is low when the existing inclined groundwater sampling method carries out layered sampling, and has the effect of improving the accuracy of the inclined groundwater layered sampling measurement result.
Description
Technical Field
The invention relates to the technical field of underground water sampling, in particular to an inclined underground water sampling method.
Background
Groundwater is in contact with aqueous media for a long time and carries a lot of information, so people often collect groundwater samples for various purposes and analyze the samples to obtain useful information.
Currently, the groundwater sampling is mostly a method for constructing a groundwater sampling well by drilling. The drilling is generally that a sampling drilling machine drills or pushes into a certain depth in a vertical ground in a field, then a well pipe is placed in the well pipe, quartz sand and bentonite are filled between the well wall and the well pipe for filtering and plugging, and after the well is cleaned, an underground water sample product is collected in an underground water well. When water is pumped, firstly the water stored in the well pipe flows out, then the water stored in the filter material layer outside the sieve pipe flows out, and finally the fresh underground water sample product flows out from the water-bearing layer communicated with the sieve pipe. The groundwater sampling well constructed by the method is vertical to the ground.
And when the bottom groundwater environment conditions of some special objects such as buildings, structures, landfill sites, rivers, lakes, historic site protection areas, important facilities and the like need to be known, and drilling and well building can not or can not be carried out from the upper part, inclined groundwater sampling is needed.
When the existing inclined underground water sampling method is used for layered sampling, water-stopping pipes are generally used for performing water-stopping treatment on sampling areas of all layers and then performing layered sampling, the reaming cost is high, construction personnel are required to have good construction treatment experience, otherwise, the water-stopping effect is poor, and accurate water quality information of different aquifers is difficult to obtain.
The above prior art solutions have the following drawbacks: the existing inclined groundwater sampling method has high operation difficulty when layered sampling is carried out, and the accuracy of measurement is difficult to ensure.
Disclosure of Invention
The invention aims to provide a tilting groundwater sampling method which has the characteristic of improving the accuracy of a measuring result.
The above object of the present invention is achieved by the following technical solutions:
an inclined underground water sampling method comprises the steps of setting a sampling area and a sampling depth in an area needing underground water environment investigation; setting drilling points in an area needing groundwater environment investigation according to the sampling area and the sampling depth, and drilling from the drilling points by using a drilling machine to form an inclined sampling well; the method is characterized by also comprising the following steps of placing plugs at positions below the preset sampling depth in the inclined sampling well, and respectively expanding the plugs and tightly contacting with the well wall of the inclined sampling well;
and installing a groundwater sampler, and respectively sampling and detecting the water sample positioned between the two plugs and the water sample above the plug at the uppermost layer position.
By adopting the technical scheme, a sampling area, a sampling depth and a drilling point are set in an area needing underground water environment investigation, and a drilling machine is used for drilling from the drilling point to form an inclined sampling well, so that inclined underground water sampling is realized, and the problem that drilling and well building cannot be carried out from the upper part or cannot be solved; plugs are respectively placed at the lower positions of the preset sampling depth in the inclined sampling well, the plugs are respectively expanded and are in close contact with the well wall of the inclined sampling well, so that the plugs generate a water stopping effect, meanwhile, water samples in the area of the preset sampling depth in the inclined sampling well are separated by the expanded plugs, and the accuracy of detection results of the water samples at different depths is reduced due to the mutual influence of disturbance and the like among the water samples at different depths in the same drilling hole; the groundwater sampler is installed, the water samples located between the two plugs and the water samples above the plugs at the uppermost layer are sampled and detected respectively, the water pumping sampling of water samples with different depths in the drilling hole with the same aperture is realized, the water quality information of the water samples with different sampling depths is more representative and more accurate, and the accuracy of the measuring result is improved.
The present invention in a preferred example may be further configured to: the set sampling depth is at least one and is positioned within 1.0m below the water level of the water sample to be sampled.
Through adopting above-mentioned technical scheme, be located the water sample impurity less within 1.0m below the water level of waiting to get the water sample for the water sample of taking is more representative, and the testing result is more accurate.
The present invention in a preferred example may be further configured to: when the water level of the water sample to be taken is smaller than the preset water level value, the set sampling depths are two and are respectively positioned within 1.0m below the water level of the water sample to be taken and 3/4 below the water level of the water sample to be taken.
Through adopting above-mentioned technical scheme, according to the water level of waiting to get the water sample, set up the quantity of sampling point and the position of sampling point to detect the quality of water condition of water sample more comprehensively, simultaneously, the water sample is more representative, makes the water sample of taking more representative, and the testing result is more accurate.
The present invention in a preferred example may be further configured to: when the water level of the water sample to be sampled is greater than the preset water level value, the three sampling depths are set and are respectively positioned within 1.0m below the water level of the water sample to be sampled, 1/2 below the water level of the water sample to be sampled and 3/4 below the water level of the water sample to be sampled.
Through adopting above-mentioned technical scheme, according to the water level of waiting to get the water sample, set up the quantity of sampling point and the position of sampling point to detect the quality of water condition of water sample more comprehensively, simultaneously, the water sample is more representative, makes the water sample of taking more representative, and the testing result is more accurate.
The present invention in a preferred example may be further configured to: before drilling construction from a drilling point by using a drilling machine, firstly, according to sampling depth and the drilling point and by combining with the actual condition of an area needing underground water environment investigation, setting the inclination angle of the drilling machine, fixing the position of the drilling machine, and controlling the drilling machine to move according to a preset moving track.
By adopting the technical scheme, according to the sampling depth and the drilling points, the actual condition of the area needing underground water environment investigation is combined, the inclination angle of the drilling machine is set, and the position of the drilling machine is fixed, so that the drilling machine can more accurately sample the drilled hole well construction of the area needing underground water environment investigation; and the drilling machine is controlled to move according to a preset moving track, so that the drilling and well building position of the drilling machine is more in accordance with the sampling requirement, and the underground water sampling is facilitated.
The present invention in a preferred example may be further configured to: and monitoring the advancing track of a drill bit of the drilling machine in real time by utilizing the working hours of the drilling machine for drilling facilities from a drilling point.
By adopting the technical scheme, when the drilling machine is used for drilling construction from a drilling point, the advancing track of the drill bit of the drilling machine is monitored in real time so as to know the advancing track of the drilling machine in real time and further correct the deviation in time when errors are found.
The present invention in a preferred example may be further configured to: and when the advancing direction of the drill bit of the drilling machine is not in accordance with the preset advancing track direction, adjusting the advancing direction of the drill bit of the drilling machine until the advancing direction of the drill bit of the drilling machine is in accordance with the preset advancing track direction.
By adopting the technical scheme, when the advancing direction of the drill bit of the drilling machine is not consistent with the preset advancing track direction, the advancing direction of the drill bit of the drilling machine is adjusted, so that the advancing direction of the drill bit of the drilling machine accords with the preset advancing track direction, the drilling and well building position of the drilling machine accords with the sampling requirement, and the underground water sampling is facilitated.
The present invention in a preferred example may be further configured to: when the advancing depth of the drill bit of the drilling machine is not in accordance with the depth of the preset advancing track, the advancing depth of the drill bit of the drilling machine is adjusted until the advancing depth of the drill bit of the drilling machine is in accordance with the depth of the preset advancing track.
By adopting the technical scheme, when the advancing depth of the drill bit of the drilling machine is not consistent with the depth of the preset advancing track, the advancing depth of the drill bit of the drilling machine is adjusted, so that the advancing depth of the drill bit of the drilling machine accords with the depth of the preset advancing track, the drilling and well building position of the drilling machine accords with the sampling requirement, and the underground water sampling is facilitated.
The present invention in a preferred example may be further configured to: after drilling construction is carried out from a drilling point by using a drilling machine and an inclined sampling well is formed, the hydrostatic level in the well is measured.
By adopting the technical scheme, the hydrostatic level in the well is measured before sampling, and the water level information is acquired to be used as the reference information of water sample analysis, so that the water sample analysis can be more accurately carried out.
The present invention in a preferred example may be further configured to: and before measuring the hydrostatic level in the well, performing well flushing operation on the inclined sampling well.
By adopting the technical scheme, the purpose of well washing is to remove silt or turbid matters in underground water, so that the collected water sample is representative, and the sampling analysis result is more accurate.
In summary, the invention includes at least one of the following beneficial technical effects:
1. the inclined underground water sampling method realizes the layered water pumping sampling of aquifers with different depths in a drill hole with the same aperture, reduces the construction difficulty, has good water stopping effect and improves the accuracy of a measuring result;
2. the reasonable sampling depth is set, so that the adopted water sample is more representative, and the detection result is more accurate;
3. the inclination angle of the drilling machine is set and the position of the drilling machine is fixed, so that the drilling machine can more accurately sample the drilled holes in the area needing underground water environment investigation;
4. controlling the drilling machine to move according to a preset moving track, so that the drilling and well building position of the drilling machine is more in line with the sampling requirement, and underground water sampling is facilitated; meanwhile, the advancing track of the drill bit of the drilling machine is monitored in real time so as to know the advancing track of the drilling machine in real time, and further, the deviation is corrected in time when an error is found;
5. the hydrostatic level in the well is measured before sampling, and water level information is acquired as reference information for water sample analysis, so that the water sample analysis can be more accurately carried out;
6. the well washing operation removes silt or turbid matters in the underground water, so that the collected water sample is representative, and the sampling analysis result is more accurate.
Drawings
FIG. 1 is a flow chart of a slant subsurface water sampling method according to one embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
The embodiment of the invention provides an inclined underground water sampling method, which comprises the steps of setting a sampling area and a sampling depth in an area needing underground water environment investigation; and setting drilling points in the area needing underground water environment investigation according to the sampling area and the sampling depth, and drilling from the drilling points by using a drilling machine to form an inclined sampling well.
In the embodiment of the invention, before the underground water sampling, plugs are respectively placed at the lower positions of the preset sampling depth in the inclined sampling well, so that the plugs are expanded and are in close contact with the well wall of the inclined sampling well; and installing an underground water sampler, and respectively sampling and detecting the water sample positioned between the two plugs or the water sample above the plug at the uppermost layer position.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, the term "and/or" herein is only one kind of association relationship describing an associated object, and means that there may be three kinds of relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship, unless otherwise specified.
The embodiments of the present invention will be described in further detail with reference to the drawings attached hereto.
The embodiment of the invention provides a tilting underground water sampling method, and the main flow of the method is described as follows.
As shown in fig. 1:
when the underground water environment condition at the bottom of some special objects, such as buildings, structures, landfill sites, rivers, lakes, historic preservation areas, important facilities and the like, needs to be known, inclined underground water stratified sampling is adopted.
Firstly, dividing a region needing groundwater environment investigation into planar grids, and setting the number of the grids according to the size of the region area in a matrix form. In the embodiment, when the area is 100km, the number of grids is 10 × 10. After the mesh setting is finished, a preset number of sampling points are arranged at intervals along the circumferential direction by taking the central mesh as a circle center and a preset numerical value as a radius. In this embodiment, the 10 × 10 grid has a preset radius of 5 meters, and the number of the preset number of sampling points is 8. The sampling points increase with the area of the area that needs to be investigated for groundwater environment. Every 15km increase of the area of the region needing groundwater environment investigation, the number of the preset number of sampling points is increased by 1. All the sampling points are connected with an area formed by enclosing and a circular area formed by taking the sampling points as the circle center and taking the preset numerical value as the radius, and the area is set as a sampling area. The sampling point is located within the sampling area.
The set sampling depth is at least one and is positioned within 1.0m below the water level of the water sample to be sampled. When the water level of the water sample to be taken is smaller than the preset water level value, the set sampling depths are two and are respectively positioned within 1.0m below the water level of the water sample to be taken and 3/4 below the water level of the water sample to be taken. When the water level of the water sample to be sampled is greater than the preset water level value, the three sampling depths are set and are respectively positioned within 1.0m below the water level of the water sample to be sampled, 1/2 below the water level of the water sample to be sampled and 3/4 below the water level of the water sample to be sampled. In this embodiment, the preset water level value may be 20 m.
When sampling a water sample, monitoring the underground water level and the water quality of the dry, flat and rich periods of a continuous hydrological year at least once respectively.
And setting drilling points in the vicinity of the positions of the sampling points in the sampling area, setting the inclination angle of the drilling machine and fixing the position of the drilling machine by combining the sampling depth and the actual conditions of the area needing underground water environment investigation, controlling the drilling machine to advance according to a preset advancing track, and constructing an inclined sampling well from the drilling points to the preset sampling depth points. In this embodiment, the inclination angle may be 30 °.
When the drilling machine is used for drilling construction from a drilling point, the travelling track of a drill bit of the drilling machine is monitored in real time. And when the advancing direction of the drill bit of the drilling machine is not in accordance with the preset advancing track direction, adjusting the advancing direction of the drill bit of the drilling machine until the advancing direction of the drill bit of the drilling machine is in accordance with the preset advancing track direction. And when the advancing depth of the drill bit of the drilling machine is smaller than the depth of the preset advancing track, adjusting the advancing depth of the drill bit of the drilling machine until the advancing depth of the drill bit of the drilling machine accords with the depth of the preset advancing track.
Specifically, when the drill bit travel track direction or travel depth of the drilling machine needs to be adjusted, the orientation of the pilot drill bit is observed by the monitor. The drill rod is controlled to move upwards and move leftwards, rightwards and downwards underground by rotating and propelling the drill rod.
And after the inclined sampling well is formed, performing well flushing operation on the inclined sampling well. The purpose of well washing is to remove silt or turbid matters in underground water, ensure that the collected water sample is representative, and ensure that the sampling analysis result is more accurate.
The choice of well-flushing tool depends on the internal diameter of the sample well, the depth of the sample, the volume of water in the well, the ease with which the sample well can be accessed, etc. In this embodiment, the well-flushing tool may be a vacuum pump. The selection of the material of the well-flushing tool requires consideration of various factors that can cause chemical and physical changes to the groundwater. In this embodiment, the vacuum pump may be made of stainless steel.
When the well is washed, the pumped water amount is at least 3 times of the volume of the inclined sampling well.
And hydrological indexes such as temperature, PH and conductivity of the pumped water sample need to be detected at regular time during well washing so as to judge whether well washing operation meets requirements. Meanwhile, hydrological index parameters such as temperature, PH and conductivity have an important indicating effect on underground water quality, and can also be used as a marking signal for stable outflow of fresh underground water, so that the obtained water sample is more representative, and the detection result is more accurate.
After the temperature values, the pH values and the conductivity values are continuously measured for preset times, the temperature values are stabilized at +/-0.2 ℃, the pH values are stabilized at +/-0.1, and the conductivity values are stabilized at +/-3%, so that the well washing operation can be considered to meet the requirements. In this embodiment, the preset number of times may be three times.
And sampling the water sample after the well flushing operation reaches the preset time. In this example, a water sample was taken 2 hours after the well-flushing operation.
Before sampling, the hydrostatic level in the sampling well is measured, water level information is core information of underground water work, and water sample analysis can be accurately performed by acquiring the water level information as reference information of water sample analysis.
After the hydrostatic level in the waiting well finishes measuring, all place the embolism in the below position of each preset sampling degree of depth in the tilting sampling well, make the embolism fill high pressure nitrogen gas inflation respectively, until the embolism and the wall of a well in close contact with of tilting sampling well to produce the stagnant water effect, simultaneously, tilting sampling well is separated into a plurality of sections by the inflated embolism.
The groundwater sampler is installed, the water samples between two plugs and the water samples above the plugs at the uppermost layer are sampled and detected respectively, water samples with different sampling depths in the drilling holes with the same aperture are pumped and sampled, and layered sampling is facilitated. In this embodiment, a self-recording water level meter is used to measure the water level, and a water pump is used to pump a water sample to the surface of the earth for water chemical parameter measurement and sample collection.
The implementation principle of the embodiment is as follows:
setting a sampling point and a sampling depth in an area needing groundwater environment investigation, setting a drilling point in an area near the position of the sampling point in the sampling area, setting the inclination angle of a drilling machine by combining the sampling depth and the actual condition of the area needing groundwater environment investigation, selecting the parking position of the drilling machine, fixing the position of the drilling machine, controlling the drilling machine to advance according to a preset advancing track, and performing inclined sampling well construction from the drilling point to the preset sampling depth point.
Specifically, the parking area of the drilling machine is relatively flat and firm, the movable drilling machine is driven into the parking place, the mast faces the drilling direction, and the support frame is extended out to fix the drilling machine.
And adjusting the hydraulic support at the bottom of the mast to form a preset inclination angle between the mast and the horizontal ground, and sliding the mast out to the ground. A pilot bit is screwed onto the drill pipe to secure the drill pipe to the gripping device and to connect the rear end to the power assembly. The motor of the power assembly is started to rotate the drill rod to advance.
When one drill rod is drilled underground, the next drill rod is connected, the drill rods are in threaded connection step by step, and the connection or separation of the drill rods is realized through the shackle plates.
The position and depth of the drill bit are monitored in real time for each advance of the rod. And when the advancing direction or the advancing depth of the drill bit of the drilling machine is not in accordance with the preset advancing track direction, adjusting the advancing direction or the advancing depth of the drill bit of the drilling machine until the advancing direction or the advancing depth of the drill bit of the drilling machine is in accordance with the preset advancing track.
When the drill bit of the drilling machine reaches the preset sampling depth position, the drill rod reversely rotates and slightly retreats for a certain distance, and the construction of the inclined sampling well is completed.
And then performing well flushing operation on the inclined sampling well, starting a water pumping device, pumping out slurry in the drilled hole by using a drill rod, standing, and repeatedly pumping water until temperature values, pH values and conductivity values measured for three times continuously in a pumped water sample are stabilized to +/-0.2 ℃, +/-0.1 and +/-3%, so that the well flushing operation can be considered to meet the requirements.
Water sample sampling was performed 2 hours after the well-flushing operation.
Before sampling, the hydrostatic level in the inclined sampling well is measured and recorded.
And then the drill rods are withdrawn, all the drill rods are pulled out, and the drill bit on the last drill rod is detached and the plug is installed.
And placing plugs at the positions below the preset sampling depths in the inclined sampling well, and respectively filling high-pressure nitrogen into the plugs for expansion until the plugs are in close contact with the well wall of the inclined sampling well.
And pumping back the drill rods, mounting a groundwater sampler on the last drill rod, pushing the drill rod to a preset acquisition depth position, and sampling and detecting the water sample between the two plugs or the water sample above the plug at the uppermost layer position. At this time, the water level of the water sample between the two plugs or the water sample above the plug at the uppermost position can be measured and recorded by the self-recording water level meter.
And after the water sample is extracted, drawing back the drill rods one by one, unloading the underground water sampler, reinstalling a new underground water sampler, repeating the operation, pushing the underground water sampler to the next preset acquisition depth position, and carrying out sampling detection on the water sample positioned between the two plugs or the water sample above the plug at the uppermost layer position until the water sampling of each preset acquisition depth is completed.
And sequentially taking out the water taking pipes in the underground water samplers, transferring the water taking pipes into sampling bottles for storage, and completing underground water sampling.
Furthermore, the inclined underground water sampling method realizes water pumping sampling at different sampling depths in the same-aperture drilling hole, has good water stopping effect, ensures that the water quality information of water samples at different sampling depths is more representative and more accurate, improves the accuracy of a measuring result, and reduces the problem of inaccurate detection result caused by mutual influence of disturbance and the like among the water samples at different depths of the same drilling hole.
Claims (10)
1. An inclined underground water sampling method comprises the steps of setting a sampling area and a sampling depth in an area needing underground water environment investigation; setting drilling points in an area needing groundwater environment investigation according to the sampling area and the sampling depth, and drilling from the drilling points by using a drilling machine to form an inclined sampling well; the method is characterized by also comprising the following steps of placing plugs at positions below the preset sampling depth in the inclined sampling well, and respectively expanding the plugs and tightly contacting with the well wall of the inclined sampling well;
and installing a groundwater sampler, and respectively sampling and detecting the water sample positioned between the two plugs and the water sample above the plug at the uppermost layer position.
2. The inclined groundwater sampling method according to claim 1, wherein the set sampling depth is at least one and is within 1.0m below the water level of the water sample to be sampled.
3. The inclined type underground water sampling method according to claim 1, wherein when the water level of the water sample to be sampled is lower than the preset water level value, the set sampling depths are two and are respectively located within 1.0m below the water level of the water sample to be sampled and 3/4 below the water level of the water sample to be sampled.
4. The inclined type underground water sampling method according to claim 1, wherein when the water level of the water sample to be sampled is higher than the preset water level value, the set sampling depths are three and are respectively located within 1.0m below the water level of the water sample to be sampled, 1/2 below the water level of the water sample to be sampled and 3/4 below the water level of the water sample to be sampled.
5. The inclined groundwater sampling method according to claim 1, wherein before drilling construction from a drilling point by using a drilling machine, an inclination angle of the drilling machine is set and a position of the drilling machine is fixed according to a sampling depth and the drilling point and the actual conditions of an area needing groundwater environment investigation, and the drilling machine is controlled to advance according to a preset advancing track.
6. The inclined groundwater sampling method according to claim 5, wherein a travel track of a drill bit of the drilling machine is monitored in real time during a time period when the drilling machine is used to drill a facility from a drilling point.
7. The inclined groundwater sampling method according to claim 6, wherein when the traveling direction of the drill bit of the drilling machine does not accord with the preset traveling track direction, the traveling direction of the drill bit of the drilling machine is adjusted until the traveling direction of the drill bit of the drilling machine accords with the preset traveling track direction.
8. The inclined groundwater sampling method according to claim 6, wherein when the traveling depth of the drill bit of the drilling machine does not accord with the depth of the preset traveling track, the traveling depth of the drill bit of the drilling machine is adjusted until the traveling depth of the drill bit of the drilling machine accords with the preset traveling track depth.
9. The inclined groundwater sampling method according to claim 1, wherein the hydrostatic level in the well is measured after the inclined sampling well is formed by drilling construction from a drilling point by using a drilling machine.
10. The inclined groundwater sampling method of claim 9, wherein the inclined sampling well is subjected to a well flushing operation prior to measuring the hydrostatic level in the well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011273527.3A CN112461601A (en) | 2020-11-14 | 2020-11-14 | Inclined underground water sampling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011273527.3A CN112461601A (en) | 2020-11-14 | 2020-11-14 | Inclined underground water sampling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112461601A true CN112461601A (en) | 2021-03-09 |
Family
ID=74837015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011273527.3A Pending CN112461601A (en) | 2020-11-14 | 2020-11-14 | Inclined underground water sampling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112461601A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114675005A (en) * | 2022-03-25 | 2022-06-28 | 中煤浙江检测技术有限公司 | Underground water detection method and detection system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69630736T2 (en) * | 1995-07-10 | 2004-09-23 | Japan Nuclear Cycle, Development Institute | Device with packer and method for sampling groundwater |
| US20090159278A1 (en) * | 2006-12-29 | 2009-06-25 | Pierre-Yves Corre | Single Packer System for Use in Heavy Oil Environments |
| JP5141383B2 (en) * | 2008-06-03 | 2013-02-13 | 株式会社大林組 | Water sampling apparatus and water sampling method |
| CN203259373U (en) * | 2012-09-24 | 2013-10-30 | 张丽颖 | Underground water stratified sampling pipe |
| CN106769215A (en) * | 2017-01-10 | 2017-05-31 | 河海大学 | A kind of device and method for fetching water for continuously acquiring drilling water sample in situ |
| CN106869909A (en) * | 2017-01-11 | 2017-06-20 | 河海大学 | It is determined that inclining the test device and its method of testing of filled opening hydrogeological parameter |
| CN206832515U (en) * | 2017-04-26 | 2018-01-02 | 辽宁有色勘察研究院 | Underground water is layered sampler in a kind of drilling well |
| CN110500036A (en) * | 2019-07-22 | 2019-11-26 | 同济大学 | A kind of tilting groundwater sampling method |
| CN111257055A (en) * | 2020-03-19 | 2020-06-09 | 北京市环境保护科学研究院 | Portable underground water depth-setting sampling device, sampling system and sampling method |
-
2020
- 2020-11-14 CN CN202011273527.3A patent/CN112461601A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69630736T2 (en) * | 1995-07-10 | 2004-09-23 | Japan Nuclear Cycle, Development Institute | Device with packer and method for sampling groundwater |
| US20090159278A1 (en) * | 2006-12-29 | 2009-06-25 | Pierre-Yves Corre | Single Packer System for Use in Heavy Oil Environments |
| JP5141383B2 (en) * | 2008-06-03 | 2013-02-13 | 株式会社大林組 | Water sampling apparatus and water sampling method |
| CN203259373U (en) * | 2012-09-24 | 2013-10-30 | 张丽颖 | Underground water stratified sampling pipe |
| CN106769215A (en) * | 2017-01-10 | 2017-05-31 | 河海大学 | A kind of device and method for fetching water for continuously acquiring drilling water sample in situ |
| CN106869909A (en) * | 2017-01-11 | 2017-06-20 | 河海大学 | It is determined that inclining the test device and its method of testing of filled opening hydrogeological parameter |
| CN206832515U (en) * | 2017-04-26 | 2018-01-02 | 辽宁有色勘察研究院 | Underground water is layered sampler in a kind of drilling well |
| CN110500036A (en) * | 2019-07-22 | 2019-11-26 | 同济大学 | A kind of tilting groundwater sampling method |
| CN111257055A (en) * | 2020-03-19 | 2020-06-09 | 北京市环境保护科学研究院 | Portable underground water depth-setting sampling device, sampling system and sampling method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114675005A (en) * | 2022-03-25 | 2022-06-28 | 中煤浙江检测技术有限公司 | Underground water detection method and detection system |
| CN114675005B (en) * | 2022-03-25 | 2024-04-05 | 中煤浙江检测技术有限公司 | Underground water body detection method and detection system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11480050B2 (en) | Device and method for measuring flow velocity and flow direction and geological parameters of groundwater through cross holes of deep wells | |
| US20190120741A1 (en) | Method for determining diffusion radius of in-situ injection and remediation of contaminated soil and groundwater | |
| Ptak et al. | Forced and natural gradient tracer tests in a highly heterogeneous porous aquifer: Instrumentation and measurements | |
| US6098448A (en) | In situ measurement apparatus and method of measuring soil permeability and fluid flow | |
| CN111189507B (en) | Karst water stratification discrimination and underground water level observation method | |
| CN114135278B (en) | Intelligent identification and prediction system and method for perception-while-drilling bad geology | |
| CN105547967A (en) | Indoor measuring device for permeability tensor of fissure medium system | |
| CN104532886A (en) | Pile bottom sediment and pile tip foundation detecting device and method for cast-in-place piles | |
| KR100607458B1 (en) | In-situ tracer test system | |
| CN111077583B (en) | Structure activation double-parameter monitoring system and monitoring method | |
| CN112461601A (en) | Inclined underground water sampling method | |
| CN103594020B (en) | A kind of device and method detecting karst Slope-Runoff position | |
| CN205280545U (en) | Seepage tests sand post or earth pillar suitable for nuclear magnetic resonance analysis and imaging system | |
| CN107102378A (en) | The method that artesian aquifer water level and head height are determined using hole pressure touching methods | |
| Reynolds et al. | Saturated hydraulic properties: Well permeameter | |
| CN106761674B (en) | It is a kind of integrate draw water and the ground of unrestrained water test lead directly to down-hole drilling device | |
| Timms et al. | Vertical hydraulic conductivity of a clayey-silt aquitard: accelerated fluid flow in a centrifuge permeameter compared with in situ conditions | |
| US20180128084A1 (en) | Facility for monitoring geological gas storage sites | |
| CN109521183B (en) | Slope surface water and soil loss amount measuring instrument and using method thereof | |
| CN116482299A (en) | Natural gas hydrate in-situ monitoring system and installation monitoring method for frozen soil area | |
| JP3772872B2 (en) | In-situ vertical permeability test equipment | |
| CN108343431A (en) | A kind of bedrock fracture ground water regime drift net probes into method | |
| CN111579351B (en) | Method for evaluating grouting support effect of tunnel and underground engineering | |
| CN109798107B (en) | Stratum lithology analysis device and method | |
| CN210322636U (en) | High-precision drilling shearing testing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210309 |