CN203639881U - Model test device for obtaining permeating flow rate by simulating artificial tracing - Google Patents

Model test device for obtaining permeating flow rate by simulating artificial tracing Download PDF

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Publication number
CN203639881U
CN203639881U CN201320763706.4U CN201320763706U CN203639881U CN 203639881 U CN203639881 U CN 203639881U CN 201320763706 U CN201320763706 U CN 201320763706U CN 203639881 U CN203639881 U CN 203639881U
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CN
China
Prior art keywords
chamber
test
sandbox
water
sand
Prior art date
Application number
CN201320763706.4U
Other languages
Chinese (zh)
Inventor
赵小龙
陈亮
高为壮
夏兵兵
梁思灵
李楠
郑龙
赵义
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河海大学
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Application filed by 河海大学 filed Critical 河海大学
Priority to CN201320763706.4U priority Critical patent/CN203639881U/en
Application granted granted Critical
Publication of CN203639881U publication Critical patent/CN203639881U/en

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Abstract

The utility model discloses a model test device for obtaining a permeating flow rate by simulating artificial tracing. The model test device comprises a sand box, a water inlet chamber, a water outlet chamber, a water head control system, a flowmeter, a plurality of testing tubes and a tracer agent concentration testing system; the sand box adopts a sealed box body and a chamber is arranged inside the box body, the top and the bottom of the sand box are provided with sand layers and clay layers from the inside out, a water inlet chamber and a water outlet chamber are arranged on the side wall of the sand box and are not communicated with each other, and the sand layers are arranged on the inner walls of the water inlet chamber and the water outlet chamber; a water inlet is formed in the water inlet chamber, and is connected with the water head control system; a water outlet is formed in the water outlet chamber, and is connected with the flowmeter; the testing tubes are arranged on the box body of the sand box, the testing tubes penetrate out of the casing from the outer wall of the sand box and extend into the chamber; the tracer agent concentration testing system obtains concentration data of tracer agents inside the testing tubes. By adopting the device, the actual real-time date of seepage of a dike foundation can be obtained, so as to provide powerful basis for real time monitoring of actual seepage of the dike foundation.

Description

A kind of model test apparatus of simulating artificial spike and obtain seepage velocity
Technical field
The utility model relates to a kind of model test apparatus of simulating artificial spike and obtain seepage velocity.
Background technology
A large amount of reservoirs and dykes and dams, since six the seventies, have been built so far by China, aspect flood control, irrigation and the generating of China, are playing an important role.Because the seepage flow of levee foundation and dam body is to affect the key factor that dam safety uses, for reservoir can be moved safely normally, the seepage monitoring of levee foundation and dam body is particularly important.Seepage monitoring aspect, the most important thing is the monitoring to seepage velocity, tracing method is on-the-spot comparatively conventional seepage velocity method of testing, but on-the-spot fringe conditions more complicated, be difficult to control, so simulate and carry out artificial spike and obtain the method for seepage velocity parameter and seem particularly important by laboratory test.
Summary of the invention
Goal of the invention: the purpose of this utility model is that a kind of model test apparatus of simulating artificial spike and obtain seepage velocity is provided for the deficiencies in the prior art, can detect with tracing method the seepage velocity of levee foundation and dam body.
Technical scheme: in order to realize the object of invention, the utility model discloses a kind of model test apparatus of simulating artificial spike and obtain seepage velocity, comprise sandbox, intake chamber, water-supplying chamber, head control system, flow meter and be used for testing the tracer concentration test macro of tracer concentration in test tube; Sandbox is to be provided with cavity in seal case and casing, the top of sandbox and bottom are provided with layer of sand, argillic horizon from the inside to the outside, intake chamber is located on the different sidewall of sandbox with water-supplying chamber, and the cavity of sandbox is sandwiched between intake chamber and water-supplying chamber, and the inwall of intake chamber and water-supplying chamber is provided with layer of sand; Intake chamber is provided with water inlet, and water inlet is connected with head control system; Water-supplying chamber is provided with delivery port, and delivery port is connected with flow meter; The casing of sandbox is provided with some test tubes, and test tube extends in cavity through housing from sandbox outer wall.
As preferably, while entering water-supplying chamber for the current that make the current of intake chamber enter sandbox cavity and sandbox cavity, hydraulic pressure can be stablized, and sandbox is cuboid, and intake chamber is located on the side of sandbox, and water-supplying chamber is located on the opposite flank of intake chamber side.
As preferably, can flow velocity when making the current of intake chamber enter sandbox cavity more even, between the casing of intake chamber and layer of sand, be provided with Turbogrid plates; Between the casing of water-supplying chamber and layer of sand, be provided with Turbogrid plates.
As preferably, for the tracer concentration in water in the time dropping into tracer distributes more evenly, test tube is uniformly distributed in the top of sandbox, and perpendicular to top surface.
As preferably, for simulated field well logging situation and prevent that sand grains from entering test tube, test tube is floral tube in the part of sandbox top layer of sand, and floral tube outside is enclosed with geotextiles.
Beneficial effect: compared with prior art, this device can obtain the real time data of actual embankment foundation influent to the utility model, for actual embankment foundation influent Real-Time Monitoring provides strong foundation.
Brief description of the drawings
Fig. 1 is the structure chart that the model test apparatus of seepage velocity is obtained in the artificial spike of simulation of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1, sandbox 1 is one to have the rectangular structure of cavity 11, and a side is intake chamber 2, and the outer wall of intake chamber 2 is provided with water inlet 21, and water inlet 21 is connected with head control system 4; Water-supplying chamber 3 is located on the opposite of intake chamber 2 sides of living in, and the outer wall of water-supplying chamber 3 is provided with delivery port 31, and delivery port 31 is connected with flow meter, and the inwall of intake chamber 2 and water-supplying chamber 3 is provided with layer of sand, is provided with Turbogrid plates 8 between the casing of intake chamber 2 and layer of sand; Between the casing of water-supplying chamber 3 and layer of sand, be provided with Turbogrid plates 8; Sandbox 1 bottom and top are provided with layer of sand, argillic horizon from the inside to the outside; The top of sandbox 1 is evenly distributed with some test tubes 6, and test tube 6 is all perpendicular to top surface, and test tube extends in cavity through housing from sandbox outer wall, and wherein test tube 6 is floral tube 61 in the part of sandbox 1 top layer of sand, and floral tube 61 outsides are enclosed with geotextiles; Tracer concentration test macro 7 extends in the cavity 11 of sandbox 1 by test tube 6.
Can reach goal of the invention by following steps by said system, its step comprises:
(1) stablize head control system 4, make the interior seepage flow of sandbox 1 reach stable;
(2) pass through tracer concentration test macro 7 to the interior even input tracer of test tube 6;
(3) utilize tracer concentration test macro 7 to obtain the change in concentration data of each test tube 6 interior diverse locations;
(4) read now meter readings;
(5) head difference of change head control system 4, repeats above-mentioned steps, obtains the change in concentration data of test tube 6 interior tracers under different seepage velocities;
(6) utilize the concentration data rule over time in well logging, with reference to dilution theorem and real seepage discharge, obtain the formula of artificial spike detection seepage velocity.

Claims (5)

1. the model test apparatus of seepage velocity is obtained in the artificial spike of simulation, it is characterized in that, comprise sandbox (1), intake chamber (2), water-supplying chamber (3), head control system (4), flow meter and be used for testing the tracer concentration test macro (7) of the interior tracer concentration of test tube (6); Sandbox (1) is for being provided with cavity (11) in seal case and casing, top and the bottom of sandbox (1) are provided with layer of sand, argillic horizon from the inside to the outside, intake chamber (2) and water-supplying chamber (3) are located on the different sidewall of sandbox (1), the cavity (11) of sandbox (1) is sandwiched between intake chamber (2) and water-supplying chamber (3), and the inwall of intake chamber (2) and water-supplying chamber (3) is provided with layer of sand; Intake chamber (2) is provided with water inlet (21), and water inlet (21) is connected with head control system (4); Water-supplying chamber (3) is provided with delivery port (31), and delivery port (31) is connected with flow meter (5); The casing of sandbox (1) is provided with some test tubes (6), and test tube (6) extends in cavity (11) through housing from sandbox (1) outer wall.
2. a kind of model test apparatus of simulating artificial spike and obtain seepage velocity as claimed in claim 1, it is characterized in that, sandbox (1) is cuboid, and intake chamber (2) is located on the side of sandbox (1), and water-supplying chamber (3) is located on the opposite flank of intake chamber (2) side.
3. a kind of model test apparatus of simulating artificial spike and obtain seepage velocity as claimed in claim 1 or 2, is characterized in that, is provided with Turbogrid plates (8) between the casing of intake chamber (2) and layer of sand; Between the casing of water-supplying chamber (3) and layer of sand, be provided with Turbogrid plates (8).
4. a kind of model test apparatus of simulating artificial spike and obtain seepage velocity as claimed in claim 2, is characterized in that, test tube (6) is uniformly distributed in the top of sandbox (1), and perpendicular to top surface.
5. a kind of model test apparatus of simulating artificial spike and obtain seepage velocity as claimed in claim 4, is characterized in that, test tube (6) is floral tube (61) in the part of sandbox (1) top layer of sand, and floral tube (61) outside is enclosed with geotextiles.
CN201320763706.4U 2013-11-27 2013-11-27 Model test device for obtaining permeating flow rate by simulating artificial tracing CN203639881U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320763706.4U CN203639881U (en) 2013-11-27 2013-11-27 Model test device for obtaining permeating flow rate by simulating artificial tracing

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Application Number Priority Date Filing Date Title
CN201320763706.4U CN203639881U (en) 2013-11-27 2013-11-27 Model test device for obtaining permeating flow rate by simulating artificial tracing

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104790338A (en) * 2015-03-12 2015-07-22 黄河水利委员会黄河水利科学研究院 Contact scour hydraulic model
CN105547960A (en) * 2016-01-05 2016-05-04 同济大学 Transparent sand-based visualized simulation test method for foundation pit dewatering groundwater seepage
CN106021739A (en) * 2016-05-24 2016-10-12 河海大学 Stratified reservoir thermal density flow tracing method
CN106053522A (en) * 2016-07-13 2016-10-26 东华理工大学 Seepage freezing testing device
CN108198498A (en) * 2017-12-28 2018-06-22 防灾科技学院 Earthquake-tide effect lower simulator and analogy method of the inshore with seepage action of ground water
CN108759949A (en) * 2018-05-30 2018-11-06 河海大学 Measure the device and its operating method of phytal zone groundwater discharge
CN111175139A (en) * 2020-01-10 2020-05-19 河海大学 Visual test device and test method for simulating core wall dam hydraulic fracture

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104790338A (en) * 2015-03-12 2015-07-22 黄河水利委员会黄河水利科学研究院 Contact scour hydraulic model
CN105547960A (en) * 2016-01-05 2016-05-04 同济大学 Transparent sand-based visualized simulation test method for foundation pit dewatering groundwater seepage
CN105547960B (en) * 2016-01-05 2018-07-27 同济大学 A kind of base pit dewatering seepage action of ground water visual Simulation test method based on transparent sand
CN106021739A (en) * 2016-05-24 2016-10-12 河海大学 Stratified reservoir thermal density flow tracing method
CN106021739B (en) * 2016-05-24 2018-07-24 河海大学 A method of to being layered reservoir Thermal Density Current tracer
CN106053522A (en) * 2016-07-13 2016-10-26 东华理工大学 Seepage freezing testing device
CN108198498A (en) * 2017-12-28 2018-06-22 防灾科技学院 Earthquake-tide effect lower simulator and analogy method of the inshore with seepage action of ground water
CN108198498B (en) * 2017-12-28 2019-12-13 防灾科技学院 Simulation device and simulation method for underground water seepage of offshore shore zone under earthquake-sea tide action
CN108759949A (en) * 2018-05-30 2018-11-06 河海大学 Measure the device and its operating method of phytal zone groundwater discharge
CN111175139A (en) * 2020-01-10 2020-05-19 河海大学 Visual test device and test method for simulating core wall dam hydraulic fracture

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20140611

Termination date: 20161127