CN106323534B - A kind of self-drilling type artesian head in-situ testing device and its application method - Google Patents
A kind of self-drilling type artesian head in-situ testing device and its application method Download PDFInfo
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- CN106323534B CN106323534B CN201610623250.XA CN201610623250A CN106323534B CN 106323534 B CN106323534 B CN 106323534B CN 201610623250 A CN201610623250 A CN 201610623250A CN 106323534 B CN106323534 B CN 106323534B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
Abstract
The invention discloses a kind of self-drilling type artesian head in-situ test new equipment and its application method, including drilling system, expansion mechanism and test system；Cutting edge is installed on outer layer sleeve bottom end, drill bit is connected to internal layer drilling rod bottom end, and expansion mechanism is fixed on outer layer sleeve middle and lower part specific position, and osmometer is built in internal layer drilling rod lower end in test, outer layer sleeve and internal layer drilling rod lower end are trepanning floral tube, the permeable steel strainer of liner.The present invention realizes that autonomous drilling arrives specific water-bearing layer position by the collaborative work of internal layer drilling rod/outer layer sleeve, reduce the disturbance to stratum, and by the expansion realization of expansion mechanism on outer layer sleeve to the hermetic barrier in upper and lower water-bearing layer, and the test to artesian water head is realized by built-in osmometer, and then realize to the validity test of different water cut layer head solve that existing preboring formula pore-forming observation artesian head precision is low, efficiency is low, insecure technical barrier.
Description
Technical field
The invention belongs to civil construction, traffic engineering, field of environment engineering technology, and in particular to a kind of self-drilling type artesian water
Head in-situ testing device and its application method.
Background technology
The engineering geology body that Urban Underground Space Excavation is related to is often one and contains phreatic aquifer and multiple hold
The groundwater circle system in water-bearing layer is pressed, therefore deep basal pit becomes influence construction safety with underground engineering Dewatering by pressure reduction, construction is imitated
The important link of rate, also one of the problem always in engineering construction, and accurately and reliably to underground multi-layered aquifer artesian water
Head carries out the key that reliable test is even more dewatering design.
At present both at home and abroad to the test of underground pressure water head mainly using the method for drilling observation, need to have bored at one
Casing is installed in good instrument connection, then uses water level in water-level gauge observation casing, but when practical operation, needs to use clay ball
To at outside of sleeve water-bearing layer up and down block, in the process, usually due to clay ball during downlink water-swellable
It is difficult to reach precalculated position, causes detent position mistake or sealing effect bad, or even cause the connection of upper and lower water-bearing layer underground water
Logical, head tests test or the detent position deviation for becoming static level or mixing water level, influences the reliability of test,
Even test crash, and then cause dewatering design unreliable, or even leave accident potential to engineering.
In view of the foregoing, there is an urgent need to research and develop one kind to carry out quick, validity test to underground multilayer artesian head
New tool, provide authentic data for foundation pit and underground engineering dewatering design and control, reduce foundation pit and underground engineering underground water
The probability of happening of accident.
Invention content
Goal of the invention：In order to overcome the deficiencies in the prior art, the present invention to be held for existing underground multi-layered aquifer
The deficiency of pressure head test method, a kind of underground bearing water head in-situ test new equipment of present invention proposition and its application method, with
Solve the technical issues of foundation pit is difficult to reliably test with underground engineering dewatering design artesian head.
Technical solution：To achieve the above object, the technical solution adopted by the present invention is：
A kind of self-drilling type artesian head in-situ testing device, including drilling system, expansion mechanism and test system, wherein
The drilling system includes the internal layer hollow drill pipe of vertical direction and its outer layer sleeve of outside, the outer layer sleeve
Top be less than the internal layer hollow drill pipe top, form annular chamber between the internal layer hollow drill pipe and outer layer sleeve, institute
State the water tank of internal layer hollow drill pipe, annular chamber and peripheral hardware, water pump is sequentially connected, formation fluid circulation system；The outer layer sleeve
Bottom end be cutting edge, the bottom end of the internal layer hollow drill pipe connects drill bit；Under the internal layer hollow drill pipe and outer layer sleeve
End is trepanning floral tube, the permeable steel strainer of liner；
The expansion mechanism includes being fixed at the outer layer sleeve middle and lower part, trepanning floral tube top position outside
Expanded film, the expanded film connect by transfer pipeline with storage of higher pressures bottle；
The measuring system include the permeable steel interior being built in the internal layer hollow drill pipe survey meter and with
Connection data collecting instrument.
Further, the permeable steel strainer is mesh-like structure, is made by stainless steel, using 50-60 mesh fie screens.
Further, winding is provided with expanded film protective case on the outside of the expanded film, and the expanded film protective case is uniform
The sheet metal composition being vertically arranged, the sheet metal are strip stainless steel band, thickness 2mm, width 10mm, along expansion
Film periphery is arranged vertically, spacing 2mm；It has been wrapped with a circle adhesive tape outside the expanded film protective case, has prevented sheet metal stress deformation
And the expanded film inside damaging.
Further, the top of the internal layer hollow drill pipe and outer layer sleeve respectively connects power source.
Further, in the fluid circulation system, between the annular chamber and water tank, water pump and internal layer hollow drill pipe
It is connected by water-filled pipe between top, the water-filled pipe, which is polyurethane fiber, enhances hose.
Further, the transfer pipeline, which is polyurethane fiber, enhances hose.
Further, the survey meter is osmometer or water-level gauge.
Further, the storage of higher pressures bottle is gas cylinder or high pressure liquid bottle, and corresponding transfer pipeline is air delivering pipeline
Or infusion pipeline.
A kind of application method of self-drilling type artesian head in-situ testing device, includes the following steps：
1) the first section outer layer sleeve with expanded film is pressed into the water barrier on stratum；
2) internal layer hollow drill pipe rotary drilling stratum, in drilling process, control drill bit relative position is higher than the bottom of cutting edge
End；By internal layer hollow drill pipe section by section, cycle creep into and be pressed into outer layer sleeve section by section, until drill bit enters survey across water barrier
Water-bearing layer is tried, and the breathing space casing with expanded film is still located among the fluid-tight water barrier on top；
Water pump conveying circulation fluid is opened simultaneously, and the soil cutting clast generated in drilling process is sent out by annular chamber and is bored
Hole enters water tank；
3) stop the indentation of outer layer sleeve, internal layer hollow drill pipe is persistently crept into, and waits for that drill bit relative position is more than cutting edge bottom
Stop drill bit drilling behind end；
4) it opens water pump persistently to convey circulation fluid and cleaned, while opening storage of higher pressures bottle conveying high-pressure dilatant to make
Membrane swelling is expanded, it is closely connected with top water barrier；
5) survey meter is sent at the bottom end trepanning floral tube of internal layer hollow drill pipe, observes hydraulic pressure, until test is stablized
Until hydraulic pressure.
Further, test is completed after testing the pressure water head in water-bearing layer, by above-mentioned steps continue working, is held into next
Water-bearing layer is pressed, next water-bearing layer artesian head size is tested.
Advantageous effect：It is provided by the invention to be driven from the drilling apparatus to advance is bored by inner drill rods using a kind of
Drill bit is crept into artesian aquifer, while the outer sleeve with expanded film is pressed into impermeable stratum, and the expansion for passing through expanded film
It realizes closely connected with surrounding soil layer, realizes the unicom of the upper and lower underground water of partition, and then by internal layer hollow drill pipe by testing element
It is sent into water-bearing layer position, hydraulic pressure size is tested, realizes the reliable test of pressure water head.The present invention may be implemented to underground bearing water
The efficient test of position, adaptable, reliability is high, especially the follow-on test to multilayer artesian aquifer, can meet foundation pit and ground
The demand of lower engineering dewatering design.
Description of the drawings
Fig. 1 is that the knot of the present invention constitutes schematic diagram；
Fig. 2 is the casing of the invention with expanded film and its external strip sheet metal schematic diagram；
Fig. 3 is casing of the present invention and the permeable steel strainer schematic diagram of inner drill rods liner.
Specific implementation mode
The present invention is further described below in conjunction with the accompanying drawings.
Be as shown in Figure 1 a kind of self-drilling type artesian head in-situ test new equipment with unique texture and test mode and
Its application method, including drilling system, expansion mechanism and test system, drilling system includes power source, water pump, water tank, water flowing
Pipeline, outer layer sleeve, internal layer hollow drill pipe, cutting edge and drill bit, drilling pressure, hydraulic pressure monitoring device and control valve；Expanding machine
Structure includes expanded film, expanded film protective case, high pressure gas (or liquid) bottle, gas transmission (or liquid) pipeline, air pressure (or hydraulic pressure) monitoring device
And control valve；Measuring system includes osmometer (or water-level gauge), data cable and the data collecting instrument observed for water pressure, is cut
It cuts sword and is installed on outer layer sleeve bottom end, drill bit is connected to internal layer hollow drill pipe bottom end；Under expansion mechanism is fixed in outer layer sleeve
Portion's specific position, osmometer are built in internal layer hollow drill pipe lower end in test, and outer layer sleeve and internal layer drilling rod lower end are trepanning
Floral tube, the permeable steel strainer of liner.The present invention realizes that autonomous drilling contains to specific by the collaborative work of internal layer drilling rod/outer layer sleeve
The disturbance to stratum is reduced, and is realized to the close of upper and lower water-bearing layer by the expansion of expansion mechanism on outer layer sleeve in water layer position
It blockades every and realizing the test to artesian water head by built-in osmometer, the present invention, which has, to be reduced disturbance from drilling and have
Effect realizes the hermetic barrier of different water cut layer, and then realizes to the validity test of different water cut layer head, solves existing preboring
Formula pore-forming observation artesian head precision is low, efficiency is low, insecure technical barrier.
A kind of self-drilling type artesian head in-situ testing device, including drilling system, expansion mechanism and test system, wherein
Drilling system includes the internal layer hollow drill pipe 6 of vertical direction and its outer layer sleeve 5 of outside, the top of outer layer sleeve 5
Portion is less than the top of internal layer hollow drill pipe 6, and annular chamber, internal layer hollow drill pipe are formed between internal layer hollow drill pipe 6 and outer layer sleeve 5
6, the water tank 3 of annular chamber and peripheral hardware, water pump 2 are sequentially connected, and form fluid circulation system；Wherein, between annular chamber and water tank 3,
It is connected by water-filled pipe 4 between water pump 2 and the top of internal layer hollow drill pipe 6, water-filled pipe 4 is that polyurethane fiber enhancing is soft
Pipe.Water pump 2, water tank 3 and water-filled pipe 4 collectively constitute water supply circulatory system with internal layer hollow drill pipe 6 and annular chamber, and water pump 2 makes
Cycle drill-in fluid (being usually water) is pressed onto 8 front of drill bit by internal layer hollow drill pipe 6, then passes through internal layer hollow drill pipe 6 and outer layer
Annular chamber between casing 5 returns to ground, while having taken away all soil cutting clasts, is transmitted in water tank 3, and in water tank
It is separated by solid-liquid separation using bolter in 3.
The bottom end of outer layer sleeve 5 is cutting edge 7, and the bottom end of internal layer hollow drill pipe 6 connects drill bit 8；6 He of internal layer hollow drill pipe
The lower end of outer layer sleeve 5 is trepanning floral tube, the permeable steel strainer of liner 17；As shown in figure 3, permeable steel strainer 17 is mesh sheet shape knot
Structure is made by stainless steel, generally uses 50-60 mesh fie screens.
The top of internal layer hollow drill pipe 6 and outer layer sleeve 5 respectively connects power source 1.Power source 1 is diesel-driven generator,
It is connected to drilling system, can be that outer layer sleeve 5 provides the indentation required lower pressure in stratum section by section, be the hollow brill of internal layer
6 rotary drilling stratum of bar provides power.Internal layer hollow drill pipe 6 is merogenesis connection, and each drilling depth 1m connects next drilling rod,
Using screwed connection.
Expansion mechanism includes being fixed at 5 middle and lower part of outer layer sleeve, the expanded film 9 on the outside of trepanning floral tube top position,
It is high pressure gas that expanded film 9 enhances hose transfer pipeline 11 to connect storage of higher pressures bottle 12 with storage of higher pressures bottle 12 by polyurethane fiber
Bottle or high pressure liquid bottle, corresponding transfer pipeline 11 are air delivering pipeline or infusion pipeline.9 outside winding of expanded film is provided with expanded film
Protective case 10, as shown in Fig. 2, expanded film protective case 10 is the sheet metal composition of homogeneous vertical setting, sheet metal is strip
Shape is stainless steel band, thickness 2mm, width 10mm, along 9 periphery vertical arrangement of expanded film, spacing 2mm；It, can before drilling starts
It is wrapped with a circle adhesive tape outside protective case 10, prevents sheet metal stress deformation and damages internal expanded film 9.
The expansion mechanism of the present invention is conveyed by gas transmission (or liquid) pipe 12 to the expanded film 9 being connected with 5 lower part of outer layer sleeve
Pressure-air (or liquid), making it, soil layer expands around, closely connected with the peripheral soil body, achievees the effect that sealing.
Measuring system includes survey meter 14 inside the permeable steel strainer 17 being built in internal layer hollow drill pipe 6 and connects therewith
The data collecting instrument 16 connect, survey meter 14 are osmometer or water level, and data collecting instrument 16 is connected by data cable 15.
Drilling system：5 lower part specific position of outer layer sleeve is equipped with expanded film 9, adhesive tape is wound on expanded film 9, outside is
Strip metal thin slice protects expanded film 9；When drilling, the drilling system on ground, will by applying lower pressure to outer layer sleeve 5
Casing is pressed into soil layer section by section；6 bottom of internal layer drilling rod is connected with rotary drilling-head 8, under Surface power drive effect before the rotary cutting soil body
Into；After reaching test position (artesian aquifer), pumping conveying compressed air (or liquid) by high pressure gas (or liquid) makes expansion
Film 9 and hole wall soil layer are closely connected, and test water-bearing layer 19 is separated with top impermeable stratum, that is, water barrier 18.
Test system：After internal layer hollow drill pipe brill 6 proceeds to 19 certain depth of water-bearing layer, passes through internal layer hollow drill pipe 6 and press
Enter clear water cleaning drilling at this time to send 14 gauge head data cable 15 of osmometer (or water-level gauge) until returning to clear water to ground
Enter the permeable place's test hydraulic pressure of 6 bottom floral tube of internal layer hollow drill pipe.
A kind of application method of above-mentioned self-drilling type artesian head in-situ testing device, includes the following steps：
1) the first section outer layer sleeve 5 with expanded film 9 is pressed into the water barrier 18 on stratum；
2) 6 rotary drilling stratum of internal layer hollow drill pipe, in drilling process, control 8 relative position of drill bit is higher than cutting edge 7
Bottom end；By the cycle section by section of internal layer hollow drill pipe 6 drilling (often creeping into 1m, connect next drilling rod, so cycle drilling) and
It is pressed into outer layer sleeve 5 section by section, until drill bit 8, which passes through water barrier 18 to enter, tests water-bearing layer 19, and the breathing space set with expanded film 9
Pipe is still located among the fluid-tight water barrier 18 on top；Internal layer hollow drill pipe 6, outer layer sleeve 5 creep into rate and depend on motor
Power, soft matter of soil layer etc..
Water pump 2 is opened simultaneously and conveys circulation fluid, and the soil cutting clast generated in drilling process is sent out by annular chamber
Drill into water tank 3；
3) stop the indentation of outer layer sleeve 5, internal layer hollow drill pipe 6 is persistently crept into, and waits for that 8 relative position of drill bit is more than cutting edge
Stop drill bit 8 behind 7 bottom ends to creep into；
4) unlatching water pump 2 persistently conveys circulation fluid and is cleaned, while opening 11 conveying high-pressure dilatant of storage of higher pressures bottle
Matter makes expanded film 9 expand, closely connected with top water barrier 18；
5) survey meter 14 is sent at the bottom end trepanning floral tube of internal layer hollow drill pipe 6, observes hydraulic pressure, until test obtains surely
Until determining hydraulic pressure.
It is aqueous into next pressure-bearing by above-mentioned steps continue working after the pressure water head in test water-bearing layer 19 is completed in test
Layer, tests next water-bearing layer artesian head size.
Embodiment
A kind of underground bearing water head in-situ test new equipment, including drilling system, expansion mechanism and test system；
The drilling system includes power source 1, water pump 2, water tank 3, water-filled pipe 4, outer layer sleeve 5, internal layer hollow drill pipe 6
Composition, power source 1, water pump 2, water tank 3, the composition drilling circulation of water-filled pipe 4,5 lower end of casing is cutting edge 7, internal layer
6 lower end of drilling rod connects drill bit 8；Power source 1 is casing 5, drilling of the internal layer drilling rod 6 in soil layer provides downward power；
The expansion mechanism is by expanded film 9, expanded film protective case 10, high pressure gas or liquid bottle or pump 11, snorkel 12 and control
Device 13 processed forms, and wherein high pressure gas or liquid bottle or pump 11 provides pressure by ventilation or liquid pipe 12 for the expansion of expanded film 9, expands
Process is controlled by controller 13, external expanded film protective case 10 to expanded film 9 provide protection, avoid in drilling process by
Damage.
The measuring system includes osmometer or water-level gauge 14, data cable 15 and data collecting instrument 16, wherein described
Osmometer or water-level gauge 14 give it to the permeable place in internal layer drilling rod lower end with cable when testing water level.
A kind of application method of underground bearing water head test new equipment includes the following steps：
1, erection stage：Water pump and water tank are connected in test zone, by power source diesel-driven generator, hydraulic pipeline, defeated
Air pipe, inside and outside two layers of casing/drilling rod are connect with dynamical system.
2, working stage：Source 1 turn on the power first by the first section casing indentation stratum with expanded film 9；It is then turned on internal layer
6 rotary drilling of hollow drill pipe, while water pump 2 is opened, circulation fluid clear water is conveyed, cutting clast is passed through into ectonexine drilling rod annular chamber
Submitting drills into water tank 3；In drilling process, the relative position for controlling drill bit 8 and cutting edge 7 is that drill bit 8 is slightly above cutting edge 7
Bottom end, by cycle drilling and the indentation outer layer sleeve 5 section by section of internal layer hollow drill pipe 6, until drill bit 8 enters across water barrier 18
Water-bearing layer 19 is tested, and the casing with expanded film 9 is still located among top impermeable stratum 18；Stop the indentation of outer layer sleeve 5, it is interior
Layer hollow drill pipe 6 is persistently crept into, and after drill bit 8 exceeds 7 bottom end certain distance of cutting edge, is stopped internal layer drill bit 8 and is crept into, be continually fed into
Clear water, cleaning drilling, until ground returns to clear water, while opening ground air pump 13, conveying high-pressure gas makes 5 lower end of outer layer sleeve
The outer expanded film 9 of casing expands, closely connected with water-bearing layer top impervious stratum, and air pressure is made to keep stablizing；One end is connected with osmotic pressure
The data cable 15 of meter or water-level gauge 14 is sent at 6 bottom end floral tube with holes of internal layer hollow drill pipe, and hydraulic pressure is observed, until test obtains
Until stablizing hydraulic pressure.
After certain water-bearing layer pressure water head is completed in test, it can be surveyed into next artesian aquifer by above-mentioned steps continue working
Try next water-bearing layer pressure water head.
The above is only a preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of self-drilling type artesian head in-situ testing device, it is characterised in that：Including drilling system, expansion mechanism and test system
System, wherein
The drilling system includes the internal layer hollow drill pipe of vertical direction（6）And its external outer layer sleeve（5）, the outer layer jacket
Pipe（5）Top be less than the internal layer hollow drill pipe（6）Top, the internal layer hollow drill pipe（6）And outer layer sleeve（5）Between
Form annular chamber, the internal layer hollow drill pipe（6）, annular chamber and peripheral hardware water tank（3）, water pump（2）It is sequentially connected, forms liquid
The circulatory system；The outer layer sleeve（5）Bottom end be cutting edge（7）, the internal layer hollow drill pipe（6）Bottom end connect drill bit
（8）；The internal layer hollow drill pipe（6）And outer layer sleeve（5）Lower end be trepanning floral tube, the permeable steel strainer of liner（17）；
The expansion mechanism includes being fixed at the outer layer sleeve（5）On the outside of middle and lower part, trepanning floral tube top position
Expanded film（9）, the expanded film（9）Pass through transfer pipeline（11）With storage of higher pressures bottle（12）Connection；
The test system includes being built in the internal layer hollow drill pipe（6）In permeable steel strainer（17）Internal survey meter
（14）With the data collecting instrument being attached thereto（16）.
2. self-drilling type artesian head in-situ testing device according to claim 1, it is characterised in that：The permeable steel strainer
（17）It for mesh-like structure, is made by stainless steel, using 50-60 mesh fie screens.
3. self-drilling type artesian head in-situ testing device according to claim 1, it is characterised in that：The expanded film（9）
Outside winding is provided with expanded film protective case（10）, the expanded film protective case（10）For the sheet metal group of homogeneous vertical setting
At the sheet metal is strip stainless steel band, thickness 2mm, width 10mm, along expanded film（9）Periphery vertical arrangement,
Away from 2mm；The expanded film protective case（10）A circle adhesive tape has been wrapped with it outside.
4. self-drilling type artesian head in-situ testing device according to claim 1, it is characterised in that：The hollow brill of internal layer
Bar（6）And outer layer sleeve（5）Top respectively connect power source（1）.
5. self-drilling type artesian head in-situ testing device according to claim 1, it is characterised in that：The liquid circulation system
In system, the annular chamber and water tank（3）Between, water pump（2）With internal layer hollow drill pipe（6）Top between pass through water-filled pipe
（4）Connection, the water-filled pipe（4）Enhance hose for polyurethane fiber.
6. self-drilling type artesian head in-situ testing device according to claim 1, it is characterised in that：The transfer pipeline
（11 ）Enhance hose for polyurethane fiber.
7. self-drilling type artesian head in-situ testing device according to claim 1, it is characterised in that：The survey meter（14）
For osmometer or water-level gauge.
8. self-drilling type artesian head in-situ testing device according to claim 1, it is characterised in that：The storage of higher pressures bottle
（12 ）For gas cylinder or high pressure liquid bottle, corresponding transfer pipeline（11 ）For air delivering pipeline or infusion pipeline.
9. a kind of application method of self-drilling type artesian head in-situ testing device according to claim 1, it is characterised in that：
Include the following steps：
1）It will be with expanded film（9）First section outer layer sleeve（5）It is pressed into the water barrier on stratum（18）；
2）Internal layer hollow drill pipe（6）Rotary drilling stratum in drilling process, controls drill bit（8）Relative position is higher than cutting edge（7）
Bottom end；Pass through internal layer hollow drill pipe（6）Section by section, cycle drilling and be pressed into outer layer sleeve section by section（5）, until drill bit（8）It wears
Cross water barrier（18）Into test water-bearing layer（19）, and with expanded film（9）Breathing space casing be still located at the fluid-tight of top
Water barrier（18）Among；
Open water pump simultaneously（2）Circulation fluid is conveyed, the soil cutting clast generated in drilling process is sent out by annular chamber and is bored
Hole enters water tank（3）；
3）Stop outer layer sleeve（5）Indentation, internal layer hollow drill pipe（6）Lasting drilling, waits for drill bit（8）Relative position is more than cutting
Sword（7）Stop drill bit behind bottom end（8）Drilling；
4）Open water pump（2）Persistently conveying circulation fluid is cleaned, while opening storage of higher pressures bottle（11）Conveying high-pressure dilatant
Matter makes expanded film（9）Expansion, with top water barrier（18）It is closely connected；
5）By survey meter（14）It is sent into internal layer hollow drill pipe（6）Bottom end trepanning floral tube at, observe hydraulic pressure, until test obtain it is steady
Until determining hydraulic pressure.
10. the application method of self-drilling type artesian head in-situ testing device according to claim 9, it is characterised in that：It surveys
Test water-bearing layer is completed in examination（19）Pressure water head after, by above-mentioned steps continue working, into next artesian aquifer, under test
One water-bearing layer artesian head size.
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| CN107036756B (en) * | 2017-06-06 | 2018-06-26 | 中国水利水电科学研究院 | After a kind of flush type can multiple spot measure the monitoring device of seepage action of ground water pressure simultaneously |
| CN107939280A (en) * | 2017-11-14 | 2018-04-20 | 中国科学院寒区旱区环境与工程研究所 | Drilling rig and boring method |
| CN108387290A (en) * | 2018-02-02 | 2018-08-10 | 浙江中林勘察研究股份有限公司 | Simple pressure water head measuring instrument |
| CN108168645B (en) * | 2018-03-23 | 2024-01-23 | 中国矿业大学(北京) | Multi-layer section simultaneous-measurement casing pipe and observation well |
| CN110965936B (en) * | 2019-12-18 | 2022-05-20 | 神华包头能源有限责任公司 | Intelligent underground water level detection drilling machine |
| CN111648829B (en) * | 2020-07-14 | 2021-07-06 | 中国水利水电科学研究院 | Measuring method for measuring original pressure water head of deep-buried tunnel |
| CN113607479A (en) * | 2021-06-22 | 2021-11-05 | 中交第三航务工程勘察设计院有限公司 | Offshore geotechnical engineering confined water sampling device and method |
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