CN101345000A - Diving well stream demonstration instrument - Google Patents
Diving well stream demonstration instrument Download PDFInfo
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- CN101345000A CN101345000A CNA200810045920XA CN200810045920A CN101345000A CN 101345000 A CN101345000 A CN 101345000A CN A200810045920X A CNA200810045920X A CN A200810045920XA CN 200810045920 A CN200810045920 A CN 200810045920A CN 101345000 A CN101345000 A CN 101345000A
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- seepage
- water
- well
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Abstract
The invention provides a phreatic well flow demonstration instrument, comprising a water-resisting soleplate and a box body which is provided with a demonstration screen, and a seepage plate which is arranged inside the box body, is parallel to the demonstration screen and connected with the water-resisting soleplate; a narrow-seam trough seepage area is formed between the seepage plate and the water-resisting soleplate and between the seepage plate and the demonstration screen; the middle part of the narrow-seam trough seepage area is provided with a simulation pumping well water-permeable well wall vertical to the horizontal plane; the bottom on the seepage plate corresponding to the simulation pumping well water-permeable well wall is provided with a pumping well drainage hole; a pumping drainage pipe which is connected with the pumping well drainage hole is provided with a pumping well water-level control valve; the two ends of the seepage plate inside the box body are respectively provided with a first clean water seepage box, a second clean water seepage box, a first tracer seepage box and a second tracer seepage box; the seepage plate is provided with a plurality of seepage holes which lead the clean water seepage boxes and the tracer seepage boxes to be respectively communicated with the narrow-seam trough seepage area; all soft pipes lead the first clean water seepage box and the second clean water seepage box to be communicated with each other and lead the first tracer seepage box and the second tracer seepage box to be communicated with each other respectively. The phreatic well flow demonstration instrument of the invention can simulate the water pumping process of the phreatic well in the open air and the state that the underground water moves to the phreatic well.
Description
Technical field:
The present invention is relevant with the bailing test in the hydrogeological specialty, special with narrow slit groove theoretical modeling underground water to phreatic well seepage flow dynamic, physical model--diving well stream demonstration instrument is relevant.
Background technology:
When sinking shaft during to table water aquifer base plate (water-resisting layer), claim the diving complete penetration of well, when sinking shaft does not reach the table water aquifer base plate, claim the diving partially penetrating well.Bailing test is one of important action of hydrogeology specialty.The process and the feature of ground water movement in the time of will understanding phreatic well during field work and draw water will be beaten a series of viewports and be observed water level around phreatic well, by the definite indirectly streamflow regime of water level data, the shape of a funnel etc. is fallen, the research cost height, intuitive is bad, and the beginner is difficult to understand.
Summary of the invention:
The objective of the invention is to reduce the phreatic well demonstrator of research cost for a kind of state from underground water to the phreatic well motion that can simulate process that open-air phreatic well draws water and is provided.
The object of the present invention is achieved like this:
Diving well stream demonstration instrument of the present invention, include the casing of water proof base plate and the demonstration screen that is connected with the water proof base plate, be positioned at the seepage flow plate that casing is parallel to the demonstration screen and is connected with the water proof base plate, form narrow slit groove vadose region between seepage flow plate and water proof base plate and casing two sides and demonstration screen, the width of narrow slit groove vadose region is 0.5～2mm, there is the permeable borehole wall of simulation pumped well perpendicular to surface level at the middle part of narrow slit groove vadose region, there is the pumped well osculum position of simulating the permeable borehole wall of pumped well bottom on the seepage flow plate relatively, on one end and the drainpipe that draws water that the pumped well osculum is connected the pumped well altitude valve is housed, the two ends that are positioned at the seepage flow plate in casing have first clear water infiltration case respectively, second clear water infiltration case, first tracer agent infiltration case, second tracer agent infiltration case, on the seepage flow plate, have some with first, second clear water infiltration case and first, the seepage flow hole that second tracer agent infiltration case communicates with narrow slit groove vadose region respectively, clear water is communicated with flexible pipe, the logical flexible pipe of tracer agent is communicated with first clear water infiltration case respectively with second clear water infiltration case, first tracer agent infiltration case is communicated with second tracer agent infiltration case, clear water service tank and tracer agent service tank are equipped with in casing top, the tracer agent pipe that supplies of the clear water feed pipe of the band clear water flow variable valve that is communicated with clear water service tank and tracer agent service tank respectively and band tracer agent variable valve provides clear water to clear water infiltration case and tracer agent infiltration case respectively, tracer agent, narrow slit groove vadose region and demonstration screen form well stream demonstration district, first, second clear water infiltration case is phreatic device for supplying, the pumped well osculum is equivalent to the phreatic point of release, each pipeline and operation valve, viewport has been formed flow control system, the size of scalable pumped well pump-out and fall dark curvilinear slope, the WIH potential drop is dark etc., tracer agent can adopt redness or other color, shows the current trace.
The permeable borehole wall of above-mentioned simulation pumped well bottom forms the diving complete penetration of well to the water proof base plate.
Between above-mentioned simulation pumped well permeable borehole wall bottom and water proof base plate distance is arranged, form the diving partially penetrating well.
The cross sectional shape of above-mentioned narrow slit groove vadose region is a rectangle.
The width of above-mentioned narrow slit groove vadose region is 1mm.
The flow viewport is arranged, the tracer agent viewport on the above-mentioned casing.
On above-mentioned clear water feed pipe and the confession tracer agent pipe flow observation drop bottle is housed respectively.
The above-mentioned permeable borehole wall of simulation pumped well adopts permeable grid to make.
Above-mentioned pumped well altitude valve is contained on the casing, and is easy for operation.
Qiu Buyi well stream theory in the groundwater dynamics:
(1) water-bearing zone is homogeneous, isotropy.
(2) the water proof base plate in water-bearing zone is a level.
(3) draw water before, natural hydraulic gradient is zero, promptly water table is a level.
Do not have the supply of infiltration or evaporation in the radius of influence scope when (4) drawing water, flow is constant on each water-carrying section.
(5) be to decide head boundary on the circumference of the radius of influence.
(6) in the pumped well and near all be two-dimensional flow.
Narrow slit groove seepage flow is exactly according under laminar condition, liquid is in motion of narrow slit groove and the similar characteristics of underground water seepage flow in the water-bearing zone, in the narrow slit channel mould type that two blocks of very narrow parallel-plates of placement are formed, test, solve the problems of ground water movement in teaching and the production practices with this, narrow slit channel mould draw up have image, easy, economical, demonstrate advantages such as effect and intuitive are good.
The present invention is the instrument according to the above-mentioned requirements design, instrument is to fall the circumference of a funnel to underground water by pumped well (centre point of a funnel falls in underground water), vertically cut-hydrogeologic section is the simulation section, this section can intactly represent underground water just can simulate the state that process that open-air phreatic well draws water and underground water move to phreatic well to the state of phreatic well motion and feature.
When instrument of the present invention is worked, earlier, after open clear water flow variable valve and tracer agent variable valve, tracer agent successively flows into first in clear water in the filtered water tank and the tracer agent service tank, second clear water infiltration case and first, second tracer agent infiltration case moves from two side direction pumped wells in the seepage flow hole on the seepage flow plate again, opening pumped well altitude valve phreatic well begins to draw water, underground water in the well stream demonstration district will move in well, prolongation along with time of pumping, dynamic water level in the well and aquifer yield all can reach steady state (SS), around pumped well, can form a well-regulated funnel that falls simultaneously, present process and the state of underground water to the pumped well motion.Simultaneously by flow control system scalable pumped well pump-out the size and dark curvilinear slope is fallen, the WIH potential drop is dark etc.
The process and the feature of ground water movement when the present invention can represent phreatic well clear, intuitively and draws water provide a kind of effective means to studying phreatic well stream motion.Demonstrate the groundwater flow trace that shields the upward demonstration system of drawing by the present invention and wait head line formation drift net, use drift net and describe and analyze underground water well stream motion characteristics and motion key element, and can be familiar with the process of bailing test and the key concept of being correlated with, the arrangement and the analysis of study bailing test data have been laid good basis for carrying out open-air actual bailing test.Demonstrator of the present invention can reduce research cost greatly.
Description of drawings:
Fig. 1 is the present invention's complete penetration of well structural representation of diving under water.
Fig. 2 is that the A of Fig. 1 is to view.
Fig. 3 is that the B of Fig. 2 is to view.
Fig. 4 is the C-C cut-open view of Fig. 3.
Fig. 5 is the D-D cut-open view of Fig. 3.
Fig. 6 is demonstration screen, narrow slit groove vadose region, seepage flow Board position figure.
Fig. 7 is the present invention's partially penetrating well structural representation of diving under water.
Fig. 8 is that the E of Fig. 7 is to view.
Fig. 9 is that the F of Fig. 7 is to view.
Figure 10 is the G-G cut-open view of Fig. 9.
Figure 11 is the H-H cut-open view of Fig. 9.
Embodiment:
Embodiment 1:
Fig. 1～Fig. 6 has provided the embodiment of the invention 1 diving complete penetration of well structural representation.Referring to Fig. 1～Fig. 6, present embodiment 1 diving well stream demonstration instrument, include water proof base plate 1 and perpendicular to the casing 3 of the demonstration of water proof base plate screen 2, thus be arranged in casing vertical with the water proof base plate and and water proof base plate and casing two sides seal in succession and demonstrate shield between shape grow into the seepage flow plate 5 of the narrow rectangular channel groove vadose region 4 of 280mm, high 16mm, wide (seeing the δ of Fig. 6) 1.0mm.There is the permeable borehole wall of being made by permeable grid 6 of simulation pumped well perpendicular to surface level at the middle part of narrow slit groove vadose region, on the seepage flow plate relatively the position of the permeable grid of the borehole wall bottom pumped well osculum 7 is arranged.On the scupper hose 8 that draws water that one end is connected with the pumped well osculum pumped well altitude valve 9 that is fixed on the casing is housed.The two ends that are positioned at the seepage flow plate in casing have first clear water infiltration case 10, second clear water infiltration case 11, first tracer agent infiltration case 12, second tracer agent infiltration case 13 respectively.Some seepage flow holes 14 that first, second clear water infiltration case and first, second tracer agent infiltration case are communicated with narrow slit groove vadose region are respectively arranged on the seepage flow plate.Clear water connection flexible pipe 15, tracer agent connection flexible pipe 16 are communicated with first clear water infiltration case and second clear water infiltration case respectively, first tracer agent infiltration case permeates case with second tracer agent and is communicated with.Clear water service tank 17 and tracer agent service tank 18 are equipped with in casing top.Casing top and clear water service tank and tracer agent service tank correspondence position have clear water water filling port 19, tracer agent inlet 20 respectively.The tracer agent pipe 24 that supplies of the clear water feed pipe 22 of the band clear water flow variable valve 21 that is communicated with clear water service tank and tracer agent service tank respectively and band tracer agent variable valve 23 provides clear water, red tracer agent to clear water infiltration case and tracer agent infiltration case respectively.As shown in Figure 2, flow viewport 25 is arranged on the casing, tracer agent viewport 26.On clear water feed pipe and the confession tracer agent pipe flow observation drop bottle 27 is housed respectively.
Underground water flowing water flow trace (because of experiment is to carry out under the condition of steady flow, streamline overlaps with trace, and this moment, red trace can be represented infiltration current streamline) in well when having shown the diving fully penetrating well water pumping on the demonstration screen among Fig. 1.Draw head line by the groundwater flow streamline and constitute drift net, use drift net and describe and analyze underground water to the diving complete penetration of well motion feature and the characteristics of motion.
Embodiment 2:
Fig. 7～Figure 11 has provided the embodiment of the invention 2 diving partially penetrating well structural representations.Present embodiment 2 is basic identical with embodiment 1, and not existing together is between the simulated dive well permeable borehole wall 28 bottoms and water proof base plate distance to be arranged.Fig. 7 demonstrates and has shown the current trace of underground water when the motion of diving partially penetrating well on the screen.
The various embodiments described above are that foregoing of the present invention is further described, but this should be interpreted as that the scope of the above-mentioned theme of the present invention only limits to the foregoing description.All technology that realizes based on foregoing all belong to scope of the present invention.
Claims (9)
1, diving well stream demonstration instrument, it is characterized in that including the casing of water proof base plate and the demonstration screen that is connected with the water proof base plate, be positioned at the seepage flow plate that casing is parallel to the demonstration screen and is connected with the water proof base plate, form narrow slit groove vadose region between seepage flow plate and water proof base plate and casing two sides and demonstration screen, the width of narrow slit groove vadose region is 0.5～2mm, there is the permeable borehole wall of simulation pumped well perpendicular to surface level at the middle part of narrow slit groove vadose region, there is the pumped well osculum position of simulating the permeable borehole wall of pumped well bottom on the seepage flow plate relatively, on one end and the drainpipe that draws water that the pumped well osculum is connected the pumped well altitude valve is housed, the two ends that are positioned at the seepage flow plate in casing have first clear water infiltration case respectively, second clear water infiltration case, first tracer agent infiltration case, second tracer agent infiltration case, on the seepage flow plate, have some with first, second clear water infiltration case and first, the seepage flow hole that second tracer agent infiltration case communicates with narrow slit groove vadose region respectively, clear water is communicated with flexible pipe, tracer agent is communicated with flexible pipe and respectively first clear water infiltration case is communicated with second clear water infiltration case, first tracer agent infiltration case is communicated with second tracer agent infiltration case, clear water service tank and tracer agent service tank are equipped with in casing top, and the tracer agent pipe that supplies of the clear water feed pipe of the band clear water flow variable valve that is communicated with clear water service tank and tracer agent service tank respectively and band tracer agent variable valve provides clear water to clear water infiltration case and tracer agent infiltration case respectively, tracer agent.
2, diving well stream demonstration instrument as claimed in claim 1 is characterized in that simulating the permeable borehole wall of pumped well bottom to the water proof base plate.
3, diving well stream demonstration instrument as claimed in claim 1 is characterized in that simulating between the permeable borehole wall of pumped well bottom and water proof base plate distance is arranged.
4, as the described diving well stream demonstration instrument of one of claim 1～3, the cross sectional shape that it is characterized in that narrow slit groove vadose region is a rectangle.
5, diving well stream demonstration instrument as claimed in claim 4, the width that it is characterized in that narrow slit groove vadose region is 1mm.
6,, it is characterized in that the flow viewport being arranged, the tracer agent viewport on the casing as the described diving well stream demonstration instrument of one of claim 1～3.
7,, it is characterized in that the clear water feed pipe and observe drop bottle for flow is housed respectively on the tracer agent pipe as the described diving well stream demonstration instrument of one of claim 1～3.
8,, it is characterized in that simulating the permeable borehole wall of pumped well and adopt permeable grid to make as the described diving well stream demonstration instrument of one of claim 1～3.
9,, it is characterized in that the pumped well altitude valve is contained on the casing as the described diving well stream demonstration instrument of one of claim 1～3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810045920XA CN101345000B (en) | 2008-08-29 | 2008-08-29 | Diving well stream demonstration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810045920XA CN101345000B (en) | 2008-08-29 | 2008-08-29 | Diving well stream demonstration instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101345000A true CN101345000A (en) | 2009-01-14 |
| CN101345000B CN101345000B (en) | 2010-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810045920XA Expired - Fee Related CN101345000B (en) | 2008-08-29 | 2008-08-29 | Diving well stream demonstration instrument |
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| Country | Link |
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| CN (1) | CN101345000B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101533579B (en) * | 2009-04-14 | 2011-10-19 | 中国地质大学（武汉） | Automatically controlled fully penetrating well water pumping simulator |
| CN103345867A (en) * | 2013-07-15 | 2013-10-09 | 成都理工大学 | Artesian well water-pumping dynamic experiment instrument |
| CN108829999A (en) * | 2018-06-26 | 2018-11-16 | 重庆科技学院 | A kind of strong heterogeneity compact reservoir horizontal well fracturing cloth seam optimization method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2050641U (en) * | 1989-04-15 | 1990-01-03 | 马鞍山钢铁公司红星中学教具厂 | Displaying model for the teaching of geography in middle school |
| CN1164956C (en) * | 2001-11-09 | 2004-09-01 | 河海大学 | Generalized tracing and diluting method for monoporate penetration flow rate measurement |
| CN2554748Y (en) * | 2002-07-30 | 2003-06-04 | 奚斌 | Self-circulation gate base seepage instrument |
| CN100568318C (en) * | 2006-07-04 | 2009-12-09 | 成都理工大学 | Pumping simulator for completely penetrating well under water |
| CN100446052C (en) * | 2006-10-18 | 2008-12-24 | 成都理工大学 | Pressure-bearing whole well water-pumping simulation device |
| CN100590456C (en) * | 2007-10-22 | 2010-02-17 | 苏州圣庄伟业岩土科技有限公司 | Foundation ground water parameter measurement method and system based on pressure tracing |
-
2008
- 2008-08-29 CN CN200810045920XA patent/CN101345000B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101533579B (en) * | 2009-04-14 | 2011-10-19 | 中国地质大学（武汉） | Automatically controlled fully penetrating well water pumping simulator |
| CN103345867A (en) * | 2013-07-15 | 2013-10-09 | 成都理工大学 | Artesian well water-pumping dynamic experiment instrument |
| CN108829999A (en) * | 2018-06-26 | 2018-11-16 | 重庆科技学院 | A kind of strong heterogeneity compact reservoir horizontal well fracturing cloth seam optimization method |
| CN108829999B (en) * | 2018-06-26 | 2022-03-01 | 重庆科技学院 | Staged fracturing seam-laying optimization method for strong-heterogeneity compact reservoir horizontal well |
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| CN101345000B (en) | 2010-06-02 |
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