CN112983428B - Method for building underground water environment monitoring well - Google Patents
Method for building underground water environment monitoring well Download PDFInfo
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- CN112983428B CN112983428B CN202110195664.8A CN202110195664A CN112983428B CN 112983428 B CN112983428 B CN 112983428B CN 202110195664 A CN202110195664 A CN 202110195664A CN 112983428 B CN112983428 B CN 112983428B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 238000012544 monitoring process Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 60
- 239000002002 slurry Substances 0.000 claims abstract description 17
- 238000010276 construction Methods 0.000 claims abstract description 12
- 238000005553 drilling Methods 0.000 claims abstract description 7
- 239000000440 bentonite Substances 0.000 claims description 35
- 229910000278 bentonite Inorganic materials 0.000 claims description 35
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 35
- 239000003673 groundwater Substances 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 4
- 230000008569 process Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D1/00—Sinking shafts
- E21D1/03—Sinking shafts mechanically, e.g. by loading shovels or loading buckets, scraping devices, conveying screws
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D5/00—Lining shafts; Linings therefor
- E21D5/04—Lining shafts; Linings therefor with brick, concrete, stone, or similar building materials
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D5/00—Lining shafts; Linings therefor
- E21D5/11—Lining shafts; Linings therefor with combinations of different materials, e.g. wood, metal, concrete
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D5/00—Lining shafts; Linings therefor
- E21D5/12—Accessories for making shaft linings, e.g. suspended cradles, shutterings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Wood Science & Technology (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention discloses a well construction method for an underground water environment monitoring well, which comprises the following steps: s1, drilling a hole downwards by using a hollow spiral drill; s2, placing a well pipe into the well hole from the hollow through hole of the hollow spiral drill along the axis of the hollow through hole; and S3, filling a filter material and a water stopping material between the inner wall of the hollow spiral drill and the outer wall of the well pipe, and taking out the hollow spiral drill. According to the underground water environment monitoring well building method disclosed by the invention, the hollow spiral drill is used for forming the support of the well hole, the processes of well pipe installation, filter material filling, sealing and water stopping and the like are completed in the hollow through hole of the hollow spiral drill under the support of the hollow spiral drill, the collapse of the well wall is prevented, the filter material and the water stopping material are ensured to be filled to the set position, and the hollow spiral drill is drawn out while filling. The hollow spiral drill is used as a support to replace the traditional slurry wall protection method for hole forming, so that the pollution to underground water is avoided, the well construction quality of the monitoring well is guaranteed, and the influence on the underground water is avoided.
Description
Technical Field
The invention relates to the field of underground water environment monitoring, in particular to a well building method for an underground water environment monitoring well.
Background
The groundwater environment monitoring well is a water quality monitoring well which is set up for investigating groundwater environment quality conditions and dynamic distribution changes of pollutants in underground water bodies, and is commonly used for groundwater investigation and monitoring in areas such as drinking water source areas, mine mining areas, industrial pollution sources, agricultural pollution sources, refuse landfill sites and the like. In order to guarantee the accuracy of the monitoring result, the construction of the groundwater environment monitoring well meets the monitoring work requirement, the groundwater flow field is not disturbed too much, and the secondary pollution to the groundwater environment is avoided.
At present, the invention about the underground water monitoring well mainly focuses on the design and improvement of the monitoring well structure, and researches on the construction and construction method of the environment monitoring well are less.
The bottom of the underground water environment monitoring well needs to be deep below the lowest water level of underground water, and in order to reduce disturbance to an underground water flow field, the diameter of the well wall is usually not more than 30cm, and the underground water environment monitoring well has the characteristics of large depth, small diameter and the like. In the process of building a monitoring well, the well wall is easy to collapse locally or even wholly, and the collapse phenomenon is particularly frequent when the monitoring well is deep or meets unstable geological conditions such as muddy clay and the like, so that on one hand, the monitoring well pipe cannot be installed to a set depth, and the representativeness of underground water sampling is influenced; on the other hand, the quartz sand filtering layer between the well pipe and the well wall cannot be filled to a set position, the filtering effect is lost, a large amount of soil particles enter the monitoring well, and the quality of underground water is affected.
In order to prevent deep hole collapse, mud dado is commonly used in civil engineering, geological exploration and other industries to form holes. However, the slurry dado pore-forming construction process has large disturbance to the underground water, and the generated slurry is easy to generate secondary pollution, so that the method is not suitable for the construction of underground water environment monitoring wells.
Disclosure of Invention
The invention aims to overcome the defects that in the prior art, a well wall is easy to collapse locally or even integrally, the disturbance to underground water is large in a slurry dado pore-forming construction process, and the generated slurry is easy to generate secondary pollution, and provides a well building method for an underground water environment monitoring well.
The invention solves the technical problems through the following technical scheme:
a well construction method for an underground water environment monitoring well comprises the following steps:
s1, drilling a hole downwards by using a hollow spiral drill;
s2, placing a well pipe into the well hole from the hollow through hole of the hollow spiral drill along the axis of the hollow through hole;
and S3, filling a filter material and a water stopping material between the inner wall of the hollow spiral drill and the outer wall of the well pipe, and taking out the hollow spiral drill.
According to the scheme, the hollow spiral drill is used for forming support of a well hole, the procedures of well pipe installation, filter material filling, sealing and water stopping and the like are completed in a hollow through hole of the hollow spiral drill under the support of the hollow spiral drill, the collapse of a well wall is prevented, the filter material and the water stopping material are ensured to be filled to a set position, the hollow spiral drill is gradually drawn out while filling, and well building is completed. The hollow spiral drill is used as a support to replace the traditional slurry wall protection method for hole forming, so that the pollution to underground water is avoided, the well construction quality of the monitoring well is guaranteed, and the influence on the underground water is avoided.
Preferably, the bottom of the hollow spiral drill is provided with a unidirectional plugging block, and the step S2 further includes:
s2.1, the well pipe penetrates into the hollow through hole of the hollow spiral drill and knocks down the one-way plugging block.
In the scheme, the one-way plugging block can prevent mud and drill cuttings from entering the interior of the hollow spiral drill, and meanwhile, the one-way plugging block can only fall off downwards from the interior of the hollow spiral drill and can be knocked down to open the well pipe when the well pipe is installed after drilling is completed.
Preferably, step S3 further includes:
s3.1, filling a small amount of filter material into an annular space between the inner wall of the hollow spiral drill and the outer wall of the upper well pipe;
s3.2, lifting the hollow spiral drill upwards while continuously filling the filter material into an annular space between the inner wall of the hollow spiral drill and the outer wall of the well pipe;
s3.3, continuously lifting the hollow spiral drill, and filling the water stopping material into an annular space between the inner wall of the hollow spiral drill and the outer wall of the well pipe.
In the scheme, a small amount of filter material is filled in the annular space firstly, so that the bottom of the well pipe is fixed, and the well pipe and the hollow spiral drill have a supporting effect under the filling of the filter material. Thereafter, the filter material is further filled and the hollow auger is initially lifted upward so that removal of the hollow auger is more stable against collapse of the well bore.
Preferably, the well pipe is provided with a pipe plug, a settling pipe, a sieve pipe, a solid-wall pipe and a pipe cap in sequence from bottom to top, and the step S3.1 further comprises the step of filling the filter material to a position 50cm above the top of the sieve pipe from the bottom of the settling pipe.
In the scheme, the well pipe is divided into a plurality of parts according to the functions, and when the filter material is filled to a position which is 50cm above the top of the sieve pipe from the bottom of the settling pipe, the filter layer can cover the settling pipe and the sieve pipe, so that the filter effect is better.
Preferably, the water-stopping material comprises dry bentonite and water-added bentonite, and the step S3.3 further comprises filling the dry bentonite above the filter material, and then filling the water-added bentonite on the dry bentonite.
In this scheme, through filling earlier dry bentonite and filling the bentonite that adds water behind, dry bentonite has stronger hydroscopicity, sets up can be better play stagnant water effect on the filter material upper strata, adds the bentonite that adds water and mixes with silt and form the mud dado.
Preferably, step S3.3 further includes filling the dry bentonite with a height not less than 30cm on the upper part of the filter material.
In the scheme, the dry bentonite is filled to more than 30cm, so that water can be fully absorbed, and meanwhile, a mud retaining wall formed by adding water into the bentonite at the upper part is fully isolated from an underground water source, so that the mud is prevented from polluting the water source.
Preferably, step S3.3 further comprises filling the watered bentonite on top of the dry bentonite to a height of 50cm from the ground.
In the scheme, a space can be reserved for backfilling a concrete slurry layer while forming the slurry retaining wall.
Preferably, the method further comprises the following steps:
and S4, backfilling a concrete slurry layer above the water-stopping material and building a well platform.
In this scheme, the well head can be strengthened and can be opened or closed to the well head by building the wellsite.
Preferably, the well platform can be positioned above ground or flush with ground.
Preferably, a filter screen is arranged around the well pipe.
In this scheme, can fully intercept soil particles through the dual filtration of filter screen and filter material, the suspended solid content is low in the monitoring well, and water stability is good, has ensured groundwater sampling quality.
The positive progress effects of the invention are as follows: the hollow spiral drill is used for forming support of a well hole, the procedures of well pipe installation, filter material filling, sealing, water stopping and the like are completed in a hollow through hole of the hollow spiral drill under the support of the hollow spiral drill, the well wall is prevented from collapsing, the filter material and the water stopping material are ensured to be filled to set positions, the hollow spiral drill is gradually drawn out while filling, and well building is completed. The hollow spiral drill is used as a support to replace the traditional slurry wall protection method for hole forming, so that the pollution to underground water is avoided, the well construction quality of the monitoring well is guaranteed, and the influence on the underground water is avoided.
Drawings
Fig. 1 is a schematic flow chart of a method for building a well for monitoring a groundwater environment according to an embodiment of the invention.
Fig. 2 is a schematic structural view of a hollow auger according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of a hollow auger according to an embodiment of the present invention in a drilling state.
Fig. 4 is a schematic structural view showing a state where a well pipe is installed according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a filter material filling state according to an embodiment of the invention.
Fig. 6 is a schematic structural diagram of a filling state of the water stop material according to an embodiment of the present invention.
Fig. 7 is a schematic structural diagram of backfilling a concrete slurry layer above a water-stop material according to an embodiment of the present invention.
Fig. 8 is a schematic diagram of a well platform structure according to an embodiment of the invention.
Fig. 9 is a schematic diagram of a well platform structure in another embodiment of the invention.
Description of reference numerals:
hollow spiral drill 1
Screw thread 2
One-way plugging block 3
Pipe cap 5
Settling tube 8
Pipe plug 9
Well platform 14 is shown clearly
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1, the method for building a groundwater environment monitoring well of the embodiment includes the following steps:
step 100: the borehole is drilled down using a hollow auger 1.
As shown in fig. 2 and 3, the hollow auger 1 in this embodiment is made of steel, has an inner diameter of 10cm to 30cm and a length of 0.5m to 2.0m in each section, and can be connected by a screw 2 or a buckle to make the total length meet the depth requirement of the monitoring well, and has a continuous screw 2 on the outer wall, a rotary cutting bit on the lower part and a one-way plugging block 3 on the bottom. During drilling, the hollow spiral drill 1 is rotated and pushed downwards under the action of oil pressure, soil is carried out of the ground 10 through the threads 2, the unidirectional plugging block 3 at the bottom of the hollow spiral drill 1 can prevent mud and drill cuttings from entering the inside of the hollow spiral drill 1, and the unidirectional plugging block 3 can only fall off the inside of the hollow spiral drill 1 downwards.
Step 200: a well pipe is placed into the borehole from the hollow through bore of the hollow auger 1 along the axis of the hollow through bore. After the well pipe is placed to a specified depth, the one-way plugging block 3 at the bottom of the hollow spiral drill 1 is knocked down, and then the well pipe is righted and fixed, and the axis of the well pipe is coincided with the axis of the drilled hole.
As shown in fig. 4, the well pipe in this embodiment has a plug 9 at the bottom, a settling tube 8 at the lower part, a drilling or slotted screen 7 in the middle part, a seamless solid-walled tube 6 at the upper part, and a cap 5 at the top. The pipe plug 9, the settling pipe 8, the sieve pipe 7, the solid-wall pipe 6 and the pipe cap 5 are made of the same material, and suitable materials such as stainless steel, polytetrafluoroethylene, polyvinyl chloride and the like can be selected according to the types of concerned pollutants. And the outer wall of the well pipe is wrapped with 2-3 layers of steel wire meshes or nylon meshes, and the aperture of each steel wire mesh or nylon mesh is 30-50 meshes. The steel wire mesh or the nylon mesh is used for filtering with the filter material 11 at the same time, so that soil particles can be fully intercepted, the content of suspended solids in the monitoring well is low, the water quality stability is good, and the underground water sampling quality is guaranteed.
Step 300: filling a small amount of filter material 11 into an annular space between the inner wall of the hollow spiral drill 1 and the outer wall of the well pipe, then slowly lifting the hollow spiral drill 1 upwards while filling the filter material 11 into the annular space between the inner wall of the hollow spiral drill 1 and the outer wall of the well pipe, filling the filler between the outer wall of the well pipe and the well wall 4 through the flowing of the filler through the space, and stopping when the filling depth of the filter material 11 reaches 50cm above the top of the sieve pipe 7 from the bottom of the sedimentation pipe 8.
As shown in fig. 5, the filtering material 11 in this embodiment has the characteristics of good sphericity and roundness, cleanness, and no pollution, the particle size is 1mm to 3mm, the filling height is 50cm from the bottom of the settling tube 8 to the top of the sieve tube 7, the filtering layer can cover the settling tube 8 and the sieve tube 7, and the filtering effect is better. During filling, measures should be taken to prevent the filter material 11 from being airborne when lifting the hollow auger 1. A small amount of filter material 11 is first filled in the annular space so that the bottom of the well casing is fixed and the well casing and hollow auger 1 has a supporting effect under the filling of the filter material 11. Thereafter, the filter material 11 is filled further and the hollow auger 1 is lifted upwards, so that the removal of the hollow auger 1 is more stable against collapse of the borehole.
Step 400: and continuously and slowly lifting the hollow spiral drill 1, simultaneously filling a water stopping material into an annular space between the inner wall of the hollow spiral drill 1 and the outer wall of the well pipe, filling the water stopping material between the outer wall of the well pipe and the hole wall 4 through the flowing of the water stopping material through the space, and stopping after the water stopping material is filled to the designed height.
As shown in fig. 6 and 7, in this embodiment, the water-stop material is filled in two stages, the first stage is filled with dry bentonite 12 not less than 30cm from the top of the filter material 11 layer, and the second stage is filled with water-added bentonite 13 or bentonite slurry to a position 50cm below the ground surface 1010. The dry bentonite 12 is filled firstly, and then the water-added bentonite 13 is filled, so that the dry bentonite 12 has strong water absorption, the water-stopping effect can be better achieved by arranging the dry bentonite on the upper layer of the filter material 11, and the water-added bentonite 13 is mixed with the silt to form the slurry retaining wall. The dry bentonite 12 is filled to more than 30cm, water can be sufficiently absorbed, and meanwhile, a mud retaining wall formed by adding the bentonite 13 to the upper part is sufficiently isolated from an underground water source, so that the mud is prevented from polluting the water source. Adding water and bentonite 13 to fill 1050cm from the ground. The space can be reserved for the backfilled concrete slurry layer while the slurry retaining wall is formed.
Step 500: and a concrete slurry layer is backfilled above the water-stop material, a protective well platform is built, and a signboard is arranged.
In the present embodiment, the well head is a conventional well head 14, as shown in FIG. 8, which retains between 30cm and 50cm of well pipe length above the surface 10.
Example 2
The present embodiment has the same structure as the above embodiments, and the difference is:
in the present embodiment, the well head is a concealed well head 15, as shown in fig. 9, and the well head is flush with the ground 10.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes or modifications to these embodiments may be made by those skilled in the art without departing from the principle and spirit of this invention, and these changes and modifications are within the scope of this invention.
Claims (6)
1. A well construction method for an underground water environment monitoring well is characterized by comprising the following steps:
s1, drilling a hole downwards by using a hollow spiral drill;
s2, placing a well pipe into the well hole from the hollow through hole of the hollow spiral drill along the axis of the hollow through hole, wherein a one-way plugging block is arranged at the bottom of the hollow spiral drill;
s2.1, the well pipe penetrates into the hollow through hole of the hollow spiral drill and knocks down the one-way plugging block;
s3, filling a filter material and a water stopping material between the inner wall of the hollow spiral drill and the outer wall of the well pipe and taking out the hollow spiral drill;
s3.1, filling a small amount of filter material into an annular space between the inner wall of the hollow spiral drill and the outer wall of the well pipe;
s3.2, lifting the hollow spiral drill upwards while continuously filling the filter material into an annular space between the inner wall of the hollow spiral drill and the outer wall of the well pipe;
s3.3, continuously lifting the hollow spiral drill, and meanwhile filling a water-stopping material into an annular space between the inner wall of the hollow spiral drill and the outer wall of the well pipe, wherein the water-stopping material comprises dry bentonite and water-added bentonite, the dry bentonite is filled above the filter material, and then the water-added bentonite is filled on the dry bentonite;
and S4, backfilling a concrete slurry layer above the water-stopping material and building a well platform.
2. A method for building a groundwater environment monitoring well according to claim 1, wherein the well pipe is provided with a pipe plug, a settling pipe, a sieve pipe, a solid wall pipe and a pipe cap from bottom to top in sequence, and the step S3.1 further comprises stopping the filling of the filter material from the bottom of the settling pipe to 50cm above the top of the sieve pipe.
3. The method for building a groundwater environment monitoring well as claimed in claim 1, wherein the step S3.3 further comprises filling the dry bentonite with a height of not less than 30cm on the upper part of the filter material.
4. The method for building the groundwater environment monitoring well according to claim 3, wherein the step S3.3 further comprises filling the watered bentonite on the upper part of the dry bentonite to a height of 50cm from the ground.
5. The method of constructing a groundwater environment monitoring well as claimed in claim 1, wherein the wellbays are positioned above or level with the ground.
6. A method for constructing a groundwater environment monitoring well as claimed in claim 1, wherein a filter screen is provided around the well pipe.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110195664.8A CN112983428B (en) | 2021-02-20 | 2021-02-20 | Method for building underground water environment monitoring well |
| PCT/CN2022/077103 WO2022174830A1 (en) | 2021-02-20 | 2022-02-21 | Well construction method for groundwater environmental monitoring well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110195664.8A CN112983428B (en) | 2021-02-20 | 2021-02-20 | Method for building underground water environment monitoring well |
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| CN112983428A CN112983428A (en) | 2021-06-18 |
| CN112983428B true CN112983428B (en) | 2023-03-14 |
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| CN202110195664.8A Active CN112983428B (en) | 2021-02-20 | 2021-02-20 | Method for building underground water environment monitoring well |
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| WO (1) | WO2022174830A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112983428B (en) * | 2021-02-20 | 2023-03-14 | 上海市政工程设计研究总院（集团）有限公司 | Method for building underground water environment monitoring well |
| CN115126409B (en) * | 2022-08-30 | 2022-11-22 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队(山东省地矿工程勘察院) | Monitoring well construction process and direct-pushing well forming tool thereof |
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| CN112983428A (en) | 2021-06-18 |
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