CN201883451U - Single-hole multi-layer underground water dynamic monitoring well - Google Patents
Single-hole multi-layer underground water dynamic monitoring well Download PDFInfo
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- CN201883451U CN201883451U CN2010202956500U CN201020295650U CN201883451U CN 201883451 U CN201883451 U CN 201883451U CN 2010202956500 U CN2010202956500 U CN 2010202956500U CN 201020295650 U CN201020295650 U CN 201020295650U CN 201883451 U CN201883451 U CN 201883451U
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Abstract
The utility model relates to a single-hole multi-layer underground water dynamic monitoring well. Two or more single wells with different depths are drilled in a large-diameter drilling hole to form a single-hole multi-layer structure; a structural well casing is installed in each single well, a strainer pipe is installed at the lower part of each single well, and the outer surface of the strainer pipe of each single well is filled with a gravel layer; and the single wells are not communicated with one another. The single-hole multi-layer underground water dynamic monitoring well has the advantages of small occupied area, concentrated well positions for convenient management, lower development, construction and management costs, convenient application of new technology, environment friendliness and energy conservation; and the single-hole multi-layer underground water dynamic monitoring well is suitable for plains where base rocks are buried more deeply and the upper loose layer is thicker, and is used for dynamically monitoring underground water to acquire the dynamic information of underground water.
Description
Technical field
The utility model belongs to the sinking shaft structure in geology probing field, is specifically related to an a kind of hole multilayer groundwater dynamic monitoring well.
Background technology
Groundwater dynamic monitoring is a long-term element task; be with grasp the variation of groundwater dynamic feature; the scientific evaluation groundwater resources are formulated management development utilization and effective protection measure, alleviate and control groundwater pollution and the relevant geological disaster and the important foundation of ecological environment.The groundwater dynamic monitoring well is the principal works facility that obtains groundwater dynamic information.
At present, in ancient geographical complicated depositional environment, the combination of multidirectional lithology deposit source forms the flusch stratum that many geohydrologic units are inlayed, and vertical depth all is monotrysian type groundwater monitoring well or clump formula monitoring gang of wells to different water cut layer group groundwater monitoring well.A glance well can only be monitored an aquifer group, exists construction cost height, floor space big, and long construction period is not easy to using and problem such as management of instrument.Formed the have high input phenomenon of Information Monitoring inconvenience of people, wealth.
It is in the 20m that big saliva open width is penetrated the general degree of depth of well, and the Drilling tubule level width of cloth is penetrated well at the position, aquifer, and purpose is that wide charge for remittance source increases water yield; Petroleum system clump formula directional well is oblique vertical Drilling different depth target zone position Cheng Jing in very little zone, and the shaft bottom be apart from can reaching hundreds of rice, but well head apart from a distance of very little be several meters to tens meters, so be clump formula directional well.
Big saliva open width is penetrated the observation requirement that well does not reach a hole multilayer group groundwater dynamic, and Cheng Jing is more shallow; The petroleum system cluster well is used for reference, but the observation of each layer group groundwater dynamic is still individual well in the 600m vertical depth, can't resolve aforesaid problem.
See to be nido and continuous multi-channel type (big saliva open width is penetrated well) in China's many well constructions in one hole, but general Cheng Jing is more shallow, mostly is tens meters rice extremely up to a hundred more.Can't satisfy needs the monitoring degree of depth (well depth is at 500-600m) below 500m, and there is the construction of the big degree of depth one hole multilayer monitor well of the difference of geology, hydrogeological conditions in different regions.
The utility model content
There are defect of insufficient such as cost height, floor space are big, long construction period for the engineering mode that overcomes layer position of existing exploitation a glance well, the purpose of this utility model is: an a kind of hole multilayer groundwater dynamic monitoring well is provided, this groundwater dynamic monitoring well can realize that floor space is little, well location is concentrated, be convenient to management, reduce development ﹠ construction and management cost, be convenient to The application of new technique, environmental protection and energy saving.
The technical scheme in the invention for solving the technical problem is as follows:
An a kind of hole multilayer groundwater dynamic monitoring well, described groundwater dynamic monitoring well is in a big diameter borehole, and the individual well of the different depth more than two or two is set, and forms a hole sandwich construction; Mounting structure well casing in each individual well, and filter pipe is installed in the bottom of every individual well, be sandy gravel stratum in the outside of every well filter pipe; Be not communicated with mutually between each individual well.
The structure well casing of installing in described each individual well is pump chamber pipe, wall casing, filter pipe and the sediment tube that links to each other successively downwards from well head.
Owing to adopt technique scheme, the utility model one hole multilayer groundwater dynamic monitoring well is compared with the technology of existing layer position a glance well, have following beneficial effect:
1) floor space is little, and a hole Duo Jing (5 wells can be reached in a hole, become the maximum 600m of well depth) Cheng Jinghou floor space is less than 1m
2, add that observation facility-specific room floor space is less than 10m
2Solved the difficult and land expropriation cost problem of expropriation of land.
2) solved unconsolidated formation groundwater source ground and become intensive exploitation central water supply problem, reduced development ﹠ construction, management cost significantly, be convenient to The application of new technique, environmental protection and energy saving simultaneously by the sporadic development central water supply.
3) higher with quality requirement and need bigger enterprise and the relevant sector of demand thereof of water supply volume to water quality stability, the difficult point that has not only solved the intensivism exploitation is convenient to control The application of new technique again, be convenient to manage and reduce cost.
4) application of a hole multilayer technique can solve and take up an area of difficulty, and well location disperses the problem of inconvenience management; Can realize the filling of adopting again, reach the unmixed purpose of energy storage and hot and cold water, more save construction fund, further reduce running cost, make the underground water energy storage air conditioner of energy-conserving and environment-protective use further universal with group well different layers position, aquifer.
Description of drawings
Below by drawings and Examples the utility model is further specified.
Fig. 1 is that the structure of the utility model one hole multilayer groundwater dynamic monitoring well is launched cross-sectional schematic.
Fig. 2 is the A-A cross-sectional schematic of Fig. 1 original structure.
Fig. 3 is the B-B cross-sectional schematic of Fig. 1 original structure.
Fig. 4 is the C-C cross-sectional schematic of Fig. 1 original structure.
Among the figure, 1. salt water layer sealing cement ball, 2.3# well sealing cement sheath, 3.3# well sealing cement ball, 4.3# the well gravel bed, 5. filter pipe, 6.2# well sealing cement sheath, 7.2# well sealing cement ball, 8.2# the well gravel bed, 9.1# well sealing cement sheath, 10.1# well sealing cement ball, 11.1# well gravel bed, 12. support, 13. pump chamber pipes, 14. sediments tube, 15. reduced diameter portions, 16.1# well, 17. shaft bottoms envelope, 18. wall casings, 20.2# well, 30.3# well, 40,41,42. big diameter boreholes.
The specific embodiment
The number of plies that the utility model one hole multilayer groundwater dynamic monitoring well is set and the degree of depth of each layer depend on the quantity and the degree of depth thereof that is layered as basic formed aquifer with geology.Present embodiment is dark for the Efficiency in Buildings in Tianjin Area basement rock buries, huge thick, the underground water of flusch layer has developed the area that needs monitoring, and this regional water supply well exploiting groundwater has been exploited to aquifer, Neogene System stratum group.Be layered as the basis with geology, continue to use custom, disclose and grow eight aquifer groups in the stratomere according to underground water mode of occurence, hydrogeological characteristics exploitation state and layering group for many years.Each organizes buried depth and the hydrogeological conditions division is as follows:
(1) shallow-layer shallow water underground reservoir group:
Circle, the end degree of depth is about 50m, during the stratum on behalf of Holocene series Q
4With the upper Pleistocene series upper formation
, promptly during shallow-layer shoaling layer group stratum on behalf of Q
4+3, grow first marine bed.Hydraulic characteristic is diving, little artesian water and shallow-layer artesian water.Groundwater-forming condition is accepted precipitation supply and evaporation drainage for participating in modern water cycle, and it is strong to resupply ability.This layer group has two dynamic monitoring sections, i.e. 0-20m and 20-50m interval.
2) the first artesian aquifer group (I):
This layer group circle, the end degree of depth is 150-200m, and it goes up this layer group to grow for marine bed and bury that boundary's degree of depth is 80-120m at the bottom of the salt water, is fresh groundwater under it.During the stratum on behalf of Q
3+2, i.e. upper Pleistocene series understratum and mid Pleistocene series stratum.This layer group is grown four layers of marine bed (second, third, the 3rd, the 4th marine bed).This layer winding is subjected to remote side direction supply and flows supply more.
3) the second artesian aquifer group (II):
During this layer group stratum on behalf of Pleistocene stratum epimere down
, circle, the end degree of depth is 230-320m.
4) the 3rd artesian aquifer group (III):
Stratum Shi Shi is Pleistocene series under the Quaternary system
Hypomere and Neogene System Pliocene (series) top
The stratum.The buried depth 420-600m of circle, the end.
5) the 4th artesian aquifer group (IV):
These aquifer group stratum epoch are equivalent to Neogene System Ming Hua town group
Middle epimere stratum, the buried depth 700-800m of circle, the end.
6) the 5th artesian aquifer group (V):
This layer group stratum epoch are equivalent to Neogene System Ming Hua town group
Middle hypomere stratum is about the buried depth 1000m of circle, the end.
7) the 6th artesian aquifer group (VI):
The stratum epoch are equivalent to Neogene System Pliocene (series) Ming Hua town group hypomere
The stratum.The buried depth 1200-1250m of circle, the end.
8) deep layer artesian aquifer group more:
During this artesian aquifer group stratum on behalf of Neogene System Pliocene (series) Ming Hua town group hypomere
And Miocene series Guantao group N
1gThe stratum, promptly during the stratum on behalf of
The stratum.
Therefore, this zone needs vertical going up to utilize nine groundwater dynamic sections of phreatic eight exploitation aquifer groups to monitor to exploitation.But Drilling becomes 600 meters of well depth, the demand of wanting according to the monitoring of characteristic of field differently task, the different depth of Drilling more than two or two, the individual well of Different Strata group combination form two layers in a hole, three layers in a hole, four layers in a hole, the five layers of groundwater dynamic monitoring well in a hole.Mounting structure well casing in each well.Be that example elaborates now with three layers of observation well structure in a hole shown in Figure 1.
Embodiment shown in Figure 1 be Drilling second, third, the structure of the three layers of groundwater monitoring well in the 4th artesian aquifer group one hole launches schematic diagram, this monitor well is in a big diameter borehole 40, be lowered to the individual well of three different depths, form a hole sandwich construction.In this big diameter borehole 40, there is secondary boring reducing, shown in the A-A cross-sectional schematic of Fig. 2, the outer ring is a big diameter borehole 40, in the time of 0 to-160 meter, the bore diameter D1 of its big diameter borehole 40 is Φ 800mm; Shown in the B-B cross-sectional schematic of Fig. 3, at-160 meters to-430 meters, the bore diameter D2 of big diameter borehole 41 is Φ 650mm; Shown in the C-C cross-sectional schematic of Fig. 4, at-430 meters to-550 meters, the bore diameter D3 of big diameter borehole 42 is Φ 500mm.Specifically being of a size of of these three wells: 3
# Well 30, it is moisture group of second hydraulic pressure, and this water intaking section of moisture group is 240 to 280 meters, and becoming the well well depth is 330 meters, mounting structure well casing in well, pump chamber pipe 13, wall casing 18, filter pipe 5 and the sediment tube 14 of this structure well casing for arranging according to the order of sequence and link to each other successively according to the monitor layer position downwards from well head.For being provided with well casing reduced diameter portion 15 between the pump chamber pipe 13 at＞120 meters deep water places and the wall casing 18, do not need reducing for shallow seated groundwater part less than 120 meters, reducing is set is for economical with materials and be beneficial to down pipe.In the present embodiment 3
#Be that d1 shown in Figure 2 is the pump chamber pipe 13 of diameter 219mm * 7 above the reduced diameter portion 15 of well, long 160 meters; Reduced diameter portion is that d2 shown in Figure 3 is wall casing 18, filter pipe 5 and the sediment tube 14 of diameter 159mm * 6 below 15, long 170 meters altogether.Wall casing 18 makes caliber than pump chamber Guan Yaoxiao by reduced diameter portion.
2
# Well 20, it is moisture group of the 3rd pressure-bearing, and this water intaking section of moisture group is 350 to 410 meters, becomes 430 meters of well depth, and reduced diameter portion is above to be the pump chamber pipe of diameter 219mm * 7, long 160 meters; Reduced diameter portion is following to be wall casing, filter pipe and the sediment tube of diameter 159mm * 6, long 270 meters altogether.
1
# Well 16, it is moisture group of the 4th pressure-bearing, and this water intaking section of moisture group is 490 to 540 meters, and becoming well depth is 550 meters, and reduced diameter portion is above to be the pump chamber pipe of diameter 219mm * 7, long 160 meters; Reduced diameter portion is following for d3 shown in Figure 4 is the wall casing of diameter 159mm * 6, long 390 meters altogether of filter pipe and sediments tube.
1
#Well, 2
#Well, 3
#These three groundwater dynamic observation wells of well are provided with 160 meters of isometric pump chamber pipes, and main purpose is to be lowered to the specification deep well submerged pump to draw the underground water that pours in the well in well, and therefore, pump chamber pipe caliber is bigger, is diameter 219mm.Be lowered to that length has considered that underground water is quiet, dynamic water level and zone year by year water level fall.40 of pump chamber pipe and big diameter boreholes adopt salt water layer sealing mud ball 1 to carry out the sealing sealing, prevent that the prominent salt water body that oozes in saline groundwater zone from moving down and pour in the well, influences the normal use of monitor well.In the bottom of every well filter pipe 5 is installed, gravel bed is filled up in outside at every well filter pipe 5, gravel bed is for pouring in people in the well for gushing with underground reservoir underground water, and the three layers of groundwater monitoring well in a hole are provided with position, three underground reservoir group aquifers gravel bed, as shown in Figure 13
#3 of well 30
#Gravel bed 4,2
#2 of well 20
#Gravel bed 8 and 1
#1 of well 16
#Gravel bed 11.Be not communicated with mutually between each individual well.At two adjacent individual wells 2
# Well 20 and 1
#Between the wall casing of well 16, and 3
# Well 30 and 1
#Be fixedly welded with support 12 between the wall casing of well 16, prevent that individual well and other well are by wall, at the darkest individual well 1
# Well 16 bottoms are provided with shaft bottom envelope 17, all the other individual wells 2
# Well 20 and 3
# Well 30 bottoms are by the cement complete closed.Above the sandy gravel stratum of every individual well filter pipe outside, upwards be provided with sealing cement ball and sealing cement sheath successively, the sandy gravel stratum of the darkest a glance well is established to the sediment tube of the simple eye well that is only second to this well depth, and the most shallow individual well is established to pump chamber pipe bottom.As shown in Figure 13
#Well sealing cement sheath 2 and 3
#Well sealing cement ball 3,2
#Well sealing cement sheath 6 and 2
#Sealing cement ball 7,1
#Sealing cement sheath 9 and 1
#Well sealing cement ball 10.The hydraulic connection of four aquifer group underground water in the hole cut off in acting as of three road cement sheaths, makes each layer group underground water recover the motion state of nature.The effect of the sealing cement ball under the sealing cement sheath has two: one, saves the input of gravel material; The 2nd, cement pours in gravel bed when preventing to inject cement sheath, keeps the crack rate of gravel bed.
The activities of the utility model one hole multilayer groundwater dynamic monitoring well is:
(1) pore-forming
By the degree of depth and the aperture of above-mentioned 3 individual wells, bore three individual wells respectively.
(2) manage down
Be lowered to 1 successively
#Well construction well casing, 2
#Well construction well casing and 3
#The well construction well casing is 1
#Bottom is provided with the shaft bottom envelope.And each 2 width of cloth of iron plate support are installed, to prevent by wall.
(3) Cheng Jing fills out the gravel sealing
1
#Gravel is filled out at well filter pipe position, and promptly 1
#Gravel bed is from center, hole and 2
#Well, 3
#Be lowered in the well well casing, give meter side's amount and satisfy the back from 2
#Be lowered in the well well casing and visit device spy sand height, the sand height is higher than filter pipe top 30m.Heavy real back is lowered to Φ 3-4cm clay ball sealing according to side's amount, and it is the same to be lowered to method.Its effect one is a sealing, the 2nd, and the cement that prevents next procedure injects not and fills out gravel and contact.Thickness 8-10m in the clay ball hole, promptly 1
#Sealing cement ball.2
#Preset the 420m drilling rod in the well casing, the well head drilling rod is connected with the high pressure cement cementing truck by side amount squeezes into cement promptly 1
#Sealing separate layer group cement sheath, its effect has two, one, separates the 4th, the 3rd aquifer group hydraulic connection, and the 2nd, be installed with 2
#Well shaft bottom envelope.The sealing cement thickness is 10-20m, injects the cement water/binder ratio 1: 1.
1
#Behind fixed 4 hours of the cement sheath, by hole centre bit and 3
#The well well casing is lowered to 2
#Well gravel bed method is the same, and promptly 2
#After this gravel bed is lowered to 2
#Sealing cement ball.Then in hole centre bit or 2
#Preset the 330m drilling rod in the well well casing, top links to each other with cementing truck, injects cement, 2
#The sealing cement sheath, the one, separate second, third aquifer group hydraulic connection, the 2nd, be installed with 3
#Well shaft bottom envelope.Admittedly the time of ending, method is the same.
In the center, hole and three borehole wall gaps be lowered to 3 successively
#Gravel bed, sealing cement ball.Preset drilling rod 180m in the center, hole and link to each other, inject 3 with cementing truck
#Cement sheath is separated the contact of first and second layer group water conservancy.Drop into mud ball on it and cut off each layer of upper abdomen and and salt water layer hydraulic connection to ground.So far become well construction all to finish and enter large-scale air compressor machine well-flushing program respectively.
It is darker that the utility model is applicable to that basement rock buries, the plains region that the upper abdomen unconsolidated formation is thicker.Suitable similar with Plain, zone, Tianjin, basement rock buries darker, flusch layer alternating layers, and the area that underground water need be monitored with development and use is as Cangzhou Area.
Claims (5)
1. hole multilayer groundwater dynamic monitoring well, it is characterized in that: described groundwater dynamic monitoring well is in a big diameter borehole, and the individual well of the different depth more than two or two is set, and forms a hole sandwich construction; Mounting structure well casing in each individual well, and filter pipe is installed in the bottom of every individual well, be sandy gravel stratum in the outside of every well filter pipe; Be not communicated with mutually between each individual well.
2. a hole multilayer groundwater dynamic monitoring well according to claim 1 is characterized in that: pump chamber pipe, wall casing, filter pipe and the sediment tube of the structure well casing of installing in described each individual well for linking to each other successively downwards from well head.
3. a hole multilayer groundwater dynamic monitoring well according to claim 2 is characterized in that: be provided with the well casing reduced diameter portion between the pump chamber pipe at＞120 meters deep water places and wall casing, wall casing makes caliber than pump chamber Guan Yaoxiao by reduced diameter portion.
4. a hole multilayer groundwater dynamic monitoring well according to claim 1 is characterized in that: be installed with support between the wall casing of two adjacent individual wells, in the darkest individual well bottom the shaft bottom envelope be set, all the other individual well bottoms are by the cement complete closed.
5. a hole multilayer groundwater dynamic monitoring well according to claim 1, it is characterized in that: above the sandy gravel stratum of every individual well, upwards be provided with sealing cement ball and sealing cement sheath successively, the sandy gravel stratum of the darkest a glance well is established the sediment tube place to the simple eye well that is only second to this well depth, and the most shallow individual well is established to pump chamber pipe bottom.
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| CN2010202956500U CN201883451U (en) | 2010-08-18 | 2010-08-18 | Single-hole multi-layer underground water dynamic monitoring well |
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|---|---|---|---|
| CN2010202956500U CN201883451U (en) | 2010-08-18 | 2010-08-18 | Single-hole multi-layer underground water dynamic monitoring well |
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| CN103088805A (en) * | 2013-02-08 | 2013-05-08 | 中国建筑第八工程局有限公司 | Artesian aquifer water level composite monitoring well and construction method thereof |
| CN103147467A (en) * | 2013-03-13 | 2013-06-12 | 中国建筑第八工程局有限公司 | Leak detection device for underground diaphragm wall and construction method of leak detection device |
| CN103344458A (en) * | 2013-06-09 | 2013-10-09 | 北京大学 | Automatic sampling apparatus for single-hole multi-layer well |
| CN105134123A (en) * | 2015-08-21 | 2015-12-09 | 山东省水利科学研究院 | Differential water shut-off method by means of engineering expanding agent |
| CN105155591A (en) * | 2015-08-21 | 2015-12-16 | 山东省水利科学研究院 | Underground water biological expansion differential water shut-off method |
| CN105158428A (en) * | 2015-08-21 | 2015-12-16 | 山东省水利科学研究院 | Multi-layer underground water monitoring pipe |
| CN104295292B (en) * | 2014-08-14 | 2016-10-26 | 中国矿业大学 | Multiple superposed coalbed methane system recovery well method for designing |
| CN106759652A (en) * | 2016-12-16 | 2017-05-31 | 四川农业大学 | The monitoring well that the supporting water quality monitor in plains region is used |
| CN110031596A (en) * | 2019-03-14 | 2019-07-19 | 中国科学院新疆生态与地理研究所 | A kind of real-time dynamic monitoring method for inland river basin in arid zone underground water |
| CN110439029A (en) * | 2019-08-14 | 2019-11-12 | 四川省地质矿产勘查开发局成都水文地质工程地质队 | Double-aquifer monitoring well device and construction method thereof |
| CN110670635A (en) * | 2019-10-16 | 2020-01-10 | 山东省物化探勘查院 | One-hole multi-well construction method in fine particle aquifer |
| CN110671053A (en) * | 2019-09-29 | 2020-01-10 | 北京高能时代环境技术股份有限公司 | Well construction method for underground water layered sampling monitoring well |
| CN110905403A (en) * | 2019-12-09 | 2020-03-24 | 中冶集团武汉勘察研究院有限公司 | Construction method of large-diameter groundwater environment monitoring well |
| CN111425186A (en) * | 2020-04-28 | 2020-07-17 | 北京市地质工程勘察院 | Shallow underground water small-caliber cluster type monitoring well and well completion method thereof |
| CN111910710A (en) * | 2020-08-12 | 2020-11-10 | 中建一局集团第三建筑有限公司 | Shallow underground water combined well structure and well forming construction method thereof |
| CN112665899A (en) * | 2020-11-23 | 2021-04-16 | 天津市地球物理勘探中心 | Sampling method suitable for loose sand, clay layer soil sample and pore water |
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2010
- 2010-08-18 CN CN2010202956500U patent/CN201883451U/en not_active Expired - Fee Related
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| CN103088805B (en) * | 2013-02-08 | 2015-09-30 | 中国建筑第八工程局有限公司 | The construction method of artesian aquifer water level combined monitoring well |
| CN103088805A (en) * | 2013-02-08 | 2013-05-08 | 中国建筑第八工程局有限公司 | Artesian aquifer water level composite monitoring well and construction method thereof |
| CN103147467A (en) * | 2013-03-13 | 2013-06-12 | 中国建筑第八工程局有限公司 | Leak detection device for underground diaphragm wall and construction method of leak detection device |
| CN103344458A (en) * | 2013-06-09 | 2013-10-09 | 北京大学 | Automatic sampling apparatus for single-hole multi-layer well |
| CN104295292B (en) * | 2014-08-14 | 2016-10-26 | 中国矿业大学 | Multiple superposed coalbed methane system recovery well method for designing |
| CN105155591B (en) * | 2015-08-21 | 2017-03-08 | 山东省水利科学研究院 | Underground aquatic organism expands layering water-stopping method |
| CN105155591A (en) * | 2015-08-21 | 2015-12-16 | 山东省水利科学研究院 | Underground water biological expansion differential water shut-off method |
| CN105134123A (en) * | 2015-08-21 | 2015-12-09 | 山东省水利科学研究院 | Differential water shut-off method by means of engineering expanding agent |
| CN105158428A (en) * | 2015-08-21 | 2015-12-16 | 山东省水利科学研究院 | Multi-layer underground water monitoring pipe |
| CN106759652A (en) * | 2016-12-16 | 2017-05-31 | 四川农业大学 | The monitoring well that the supporting water quality monitor in plains region is used |
| CN110031596A (en) * | 2019-03-14 | 2019-07-19 | 中国科学院新疆生态与地理研究所 | A kind of real-time dynamic monitoring method for inland river basin in arid zone underground water |
| CN110439029A (en) * | 2019-08-14 | 2019-11-12 | 四川省地质矿产勘查开发局成都水文地质工程地质队 | Double-aquifer monitoring well device and construction method thereof |
| CN110671053A (en) * | 2019-09-29 | 2020-01-10 | 北京高能时代环境技术股份有限公司 | Well construction method for underground water layered sampling monitoring well |
| CN110670635A (en) * | 2019-10-16 | 2020-01-10 | 山东省物化探勘查院 | One-hole multi-well construction method in fine particle aquifer |
| CN110905403A (en) * | 2019-12-09 | 2020-03-24 | 中冶集团武汉勘察研究院有限公司 | Construction method of large-diameter groundwater environment monitoring well |
| CN110905403B (en) * | 2019-12-09 | 2021-07-09 | 中冶集团武汉勘察研究院有限公司 | Construction method of large-diameter groundwater environment monitoring well |
| CN111425186A (en) * | 2020-04-28 | 2020-07-17 | 北京市地质工程勘察院 | Shallow underground water small-caliber cluster type monitoring well and well completion method thereof |
| CN111910710A (en) * | 2020-08-12 | 2020-11-10 | 中建一局集团第三建筑有限公司 | Shallow underground water combined well structure and well forming construction method thereof |
| CN112665899A (en) * | 2020-11-23 | 2021-04-16 | 天津市地球物理勘探中心 | Sampling method suitable for loose sand, clay layer soil sample and pore water |
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