CN206223625U - A kind of anchoring bedding rock sloper model assay systems that can simulate corrosive environment - Google Patents
A kind of anchoring bedding rock sloper model assay systems that can simulate corrosive environment Download PDFInfo
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- CN206223625U CN206223625U CN201621268585.6U CN201621268585U CN206223625U CN 206223625 U CN206223625 U CN 206223625U CN 201621268585 U CN201621268585 U CN 201621268585U CN 206223625 U CN206223625 U CN 206223625U
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Abstract
The utility model discloses a kind of anchoring bedding rock sloper model assay systems that can simulate corrosive environment,Including anchored slope model system,Level of flexibility stress loading device,Electrochemical testing device,Anchored slope model system includes slopes and corrosion pond,Slopes include rock stratum and structural plane material,Corrosion pond is set in the rock mass reserving hole channel on rock stratum,Slopes sidepiece sets strain and displacement sensing equipment,Level of flexibility stress loading device provides loading force,Electrochemical testing device includes prestressing force dowel,Without presstressed reinforcing steel,Auxiliary electrode,Reference electrode and electrochemical workstation,The utility model can simulate the complicated Geotechnical Environment residing for prestress anchorage cable,The corrosion electrochemistry parameter of real-time monitoring presstressed reinforcing steel material,Can be very good to grasp the etch state change procedure and corrosion mechanism of complicated ground corrosive environment lower prestress dowel,Response pattern of the research anchoring bedding rock sloper system under corrosive environment.
Description
Technical field
The utility model is related to Geotechnical Engineering modeling techniques field, and in particular to a kind of anchor that can simulate corrosive environment
Gu bedding rock sloper model assay systems, it is adaptable to opencut model and ground slope model test.
Background technology
Bedding rock sloper refers to aspect and domatic trend, is inclined to basically identical Bedded Rocks side slope.Experience engineering
After disturbance, easily there is unstable failure in bedding rock sloper, and prestressed anchor fixing structure is widely used in steep bedding rock sloper reinforcing engineering high.And
Prestress anchoraging engineering not " once and for all ", extremely dislike by the prestressed anchor fixing structure local environment being applied in slope project
It is bad, the prestress anchorage cable in slopes（Bar）Can be because of chemical attack, stress corrosion and slopes after the operation of experience long period
The composite factor such as creep recurring structure is damaged or failed.HIGH-SPEED LANDSLIDE easily causes serious caused by prestress anchorage cable brittle failure
Disaster, in the urgent need to anchoring bedding rock sloper stability degradation mechanism and security evaluation research under development corrosive environment.
Side slope model test is a kind of experiment side of the generation, development and damage -form for studying Slope unstability
Method.Mainly build the reduced scale physical model of side slope indoors using analog material, excavation, rainfall, preloading etc. are applied to it outer
Load, while its stress strain response process is tested, so as to disclose Failure of Slopes pattern and catastrophe mechanism.
At present, side slope after anchor structure stress rule, failure of cable is focused primarily upon to anchoring bedding rock sloper experimental study
The aspects such as destructive characteristics, anchor rib material loss of prestress.And in slope project, corrosive environment lower prestress steel strand wires corrosion damage
The problems such as mechanism, anchor structure corrosion damage side slope deform the affecting laws with stability not yet solves.Both at home and abroad to corrosion
Bedding rock sloper system long-term evolution behavioral study is anchored under environment less.
Existing prestress anchoraging bedding rock sloper model assay systems have the following disadvantages：
(1) existing anchored slope model assay systems can not be to corruption such as the corrosive solution residing for anchor cable, oxygen supply conditions
Erosion environment is simulated, it is impossible to study anchoring bedding rock sloper timeliness evolved behavior under corrosive environment.
(2) existing anchored slope model assay systems can test the response processes such as the deformation of side slope, stress, but not
The parameters such as corrosion rate, the extent of corrosion of anchor structure can be tested.
(3) existing anchored slope model assay systems can realize that gravity load, vertical preloading, SEA LEVEL VARIATION etc. are outer
Portion's load, but the horizontal stress of non-uniform Distribution can not be applied.
Utility model content
The purpose of this utility model is to avoid weak point of the prior art and providing one kind can simulate corrosive environment
Anchoring bedding rock sloper model assay systems, solve and how corrosive environment simulated in anchored slope model assay systems, such as
Where the corrosion rate and extent of corrosion of prestressing force dowel is tested in anchored slope model test, and how side slope model applies water
Put down to un-uniformly distributed, and when slopes deform in time supplement loading problem, corrosive environment, non-uniform Distribution can be simulated
Horizontal stress, and the electro-chemical test of anchor structure can be carried out in process of the test.
The utility model purpose is realized by following technical proposals：
A kind of anchoring bedding rock sloper model assay systems that can simulate corrosive environment, including level of flexibility stress loading dress
Put, also including anchored slope model system and electrochemical testing device,
Anchored slope model system includes slopes and corrosion pond, and slopes include the rock set from the bottom to top according to setting inclination angle
Layer, the structural plane material being equipped between each rock stratum is prefabricated with rock mass reserving hole channel on rock stratum, slopes side is vertical side,
Opposite side is side slope face, and corrosion pond includes pvc pipe, three-way pipe and lid, pvc pipe, pvc pipe upper end are buried in rock mass reserving hole channel
Mouthful open wide, pvc pipe upper port is concordant with the side slope face of slopes, pvc pipe lower port stretch out rock mass reserving hole channel and with three-way pipe
First port is connected, and the second port of three-way pipe is closed with lid, the 3rd port of three-way pipe upward, slopes sidepiece different set
Position sets strain sensing equipment, and displacement sensing equipment is installed on slopes side,
Electrochemical testing device is including prestressing force dowel, without presstressed reinforcing steel, auxiliary electrode, reference electrode and electrochemical operation
Stand,
After prestressing force dowel one end passes through lid, the counter force wall of the second port of three-way pipe, it is fixed on using lower end anchorage
Counter force wall, after the prestressing force dowel other end passes through pvc pipe, dynamometer, the side slope face of slopes is fixed on using upper end anchorage,
Hung in three-way pipe by the static line that insulate without presstressed reinforcing steel and auxiliary electrode；Reference electrode is arranged on threeway
Pipe in, prestressing force dowel, be mutually not in contact with each other without presstressed reinforcing steel, auxiliary electrode, reference electrode and respectively pass through wire and electrochemistry
Work station is connected,
Level of flexibility stress loading device integrally provides loading force for the vertical side of slopes.
Level of flexibility stress loading device as described above includes loading plate, load transfer plate and counter force wall, and load transfer plate is close to slope
Body vertical side is set, and load transfer plate is fixed in alignment pin one end, and the other end stretches out the alignment pin reserving hole channel for being arranged on loading plate, plus
Lotus plate offers the reserved perforation of pipeline passed through for pvc pipe and prestressing force dowel with load transfer plate in the extended spot of pvc pipe；Alignment pin
On be arranged with spring, spring is located between loading plate and load transfer plate；The fixing end of jack is fixed on counter force wall, and jack is stretched
Contracting end is supported in loading plate, and counter force wall end portion insertion underground is simultaneously reinforced by support tripod.
The height that jack as described above is acted on loading plate is located at 1/3rd of the total height of slopes.
Oxygen hose one end is inserted into three-way pipe and positioned at the bottom of three-way pipe, and the oxygen hose other end is connected with oxygen supply pump.
The utility model has advantages below relative to prior art：
1st, existing anchored slope model assay systems are mainly used in studying the mechanics strengthening mechanisms of anchored slope and deformation is broken
Bad rule, is not yet related to the corrosion durable problem of prestress anchoraging side slope system, and the problem can not be ignored.This practicality is new
Type built-in corrosion pond in side slope model, fills corrosive liquid in corrosion pond, and uses adjustable oxygen supply pump oxygen supply, can simulate pre- answering
Corrosive environment residing for power anchor cable, so as to study response pattern of the anchoring bedding rock sloper system to corrosive environment.
2nd, the test content in existing anchored slope model assay systems mainly includes displacement, stress, soil pressure, Pore Pressure
Power etc. is tested, and can not detect the etch state with presstressed reinforcing steel material in description slopes.The utility model is on prestress anchoraging side
Slope sets three-electrode system in built-in corrosion pond, can be with the self-corrosion of real-time monitoring prestressing force dowel using electrochemical workstation
The electrochemical parameters such as current potential, corrosion electric current density, ac impedance spectroscopy, can well grasp the corruption of corrosive environment lower prestress dowel
Erosion state change process and corrosion mechanism.
3rd, the horizontal loading apparatus in existing side slope model assay systems are rigidity loading, and rigid loading device is applied to slope
Power on body may be considered evenly load, and in fact, the horizontal stress of rock mass and differed at different elevations, in addition, working as
When slopes occur certain displacement, compatibility of deformation can not be met between rigid loading device and slopes, load can be caused timely
It is applied in deformation slopes.The utility model combines two blocks of sheet metals and develops side slope horizontal flexibility loading dress with multiple springs
Put, point of force application will be concentrated to be arranged at the h/3 of ground（H be slopes highly）, can simulate rock mass difference elevation level to
Non-uniform Distribution load, when slopes deform the elastic deformation amount of flexible loading device can supplement rapid to slopes plus
Carry, therefore more realistically simulate the horizontal stress in side slope.
Brief description of the drawings
Fig. 1 is elevation of the present utility model.
Fig. 2 is profile of the present utility model.
Fig. 3 is right view of the present utility model.
Fig. 4 is electrochemical testing device schematic diagram in the utility model.
In figure：1-formation material, 2-corrosion pond, 3-prestressing force dowel, 4-1-upper end anchorage, 4-2-lower end anchorage,
5-dynamometer, 6-loading plate, 7-load transfer plate, 8-alignment pin, 9-spring, 10-jack, 11-counter force wall, 12-
Support tripod, 13-electrochemical testing device, 14-without presstressed reinforcing steel, 15-auxiliary electrode, 16-reference electrode, 17-1-pre-
Stress working electrode wire, 17-2 without prestressing force working electrode wire, 18-reference electrode wire, 19-auxiliary electrode wire,
20-electrochemical workstation, 21-adjustable oxygen supply pump, 22-oxygen hose, 23-sealing ring, 24-insulation static line, 25-knot
Structure facestock material, 26-displacement sensing equipment, 27-strain sensing equipment.
Specific embodiment
The technical solution of the utility model, but accompanying drawing are further illustrated below in conjunction with the accompanying drawings and by specific embodiment
In embodiment do not constitute to any limitation of the present utility model.
As shown in Figure 1 to 4, a kind of anchoring bedding rock sloper model assay systems that can simulate corrosive environment, including anchoring
Side slope model system, level of flexibility stress loading device, electrochemical testing device 13, specially：
Anchored slope model system includes slopes, corrosion pond 2, anchorage（4-1、4-2）, dynamometer 5 etc..
Slopes include the rock stratum set from the bottom to top according to setting inclination angle, the structural plane material being equipped between each rock stratum
25, rock mass reserving hole channel is prefabricated with rock stratum, the pvc pipe in corrosion pond 2 is provided with rock mass reserving hole channel, rock stratum uses rock stratum material
Material 1 makes.Formation material 1 and structural plane material 25 are that indoors artificial configuration is formed, can be according to engineering rock stratum and structure in practice
The physical parameter in face, mechanics parameter are configured by the similarity criterion in model test.It is pre- using retaining rock in prefab-form
The mode boxed out makes rock stratum, the rock stratum reserving hole channel containing rock mass produced, rock stratum of the multiple containing rock mass reserving hole channel
Material 1 and structural plane material 25 constitute the slopes containing rock mass reserving hole channel, and lifting rock is layered from the bottom to top according to design inclination angle
Layer, often completes one layer of uniform laying structure facestock material 25 at an upper portion thereof, until completing the slopes containing rock mass reserving hole channel, rock mass
Reserving hole channel is used to place the pvc pipe and prestressing force dowel 3 in corrosion pond 2, and duct direction is put down with the setting direction of prestressing force dowel 3
OK.Slopes side is vertical side, and opposite side is side slope face.
To meet conventionally test requirement, can be in the pre-buried strain sensing equipment 27 of slopes sidepiece diverse location, can be by slopes
Make test bracket and displacement sensing equipment 26 is installed, strain sensing equipment 27 can use foil gauge, foil gauge should by 45 ° of three axle
Become flower mode and be pasted on slopes side different set position respectively, displacement sensing equipment 26 can use percentage tabular form displacement sensing
Device, displacement sensing equipment 26 is fixed on the displacement transducer mounting bracket that shaped steel is made, and displacement transducer mounting bracket is fixed on
Ground, the gauge head directly contact measuring point of displacement sensing equipment 26, measuring point is made using rigid blockage, and rigid blockage passes through spiral shell
Silk is fixed on slopes side different set position.After the completion of slopes bury corrosion pond 2, corrosion pond 2 include pvc pipe, three-way pipe and
Lid, pvc pipe diameter is less than rock mass reserving hole channel diameter, and pvc pipe is placed directly in rock mass reserving hole channel, pvc pipe upper port
Naturally open wide, pvc pipe upper port face is concordant with the side slope face of slopes, and rock mass reserving hole channel is not stretched out；Pvc pipe lower port is slightly stretched out
Rock mass reserving hole channel, pvc pipe lower port is connected with the first port of three-way pipe, and the first port and second port of three-way pipe are located at
On same straight line, the second port of three-way pipe is closed with lid, and upward, the 3rd port of three-way pipe is used for the 3rd port of three-way pipe
In perfusion corrosive liquid, by the immersion length of the liquid surface height controlling prestressing force dowel 3 in the 3rd port of three-way pipe, three-way pipe
The 3rd port height it is not enough when, can be used pvc pipe joint to lengthen.PVC of the upper end of prestressing force dowel 3 through corrosion pond 2
Pipe, after the lower end of prestressing force dowel 3 passes through lid, the counter force wall 11 of the second port of three-way pipe, is fixed using lower end anchorage 4-2
In counter force wall 11, prestressing force dowel 3 is not contacted with pvc pipe, after the upper end of prestressing force dowel 3 passes through pvc pipe, dynamometer 5, is passed through
Punching jack tension, is locked in the side slope face of slopes using upper end anchorage 4-1 after tensioning；Dynamometer 5 is positioned over upper end anchorage
Between 4-1 and the side slope face of slopes, the one end of dynamometer 5 is adjacent to domatic, and the other end of dynamometer 5 is contacted with upper end anchorage 4-1, in advance should
By punching jack tension and locking, the two ends of prestressing force dowel 3 after tensioning and locking are by upper end anchorage for the upper end of power dowel 3
4-1 and lower end anchorage 4-2 are separately fixed on the side slope face and counter force wall 11 of slopes, and prestressing force dowel 3 pulls upper end anchorage 4-
1, upper end anchorage 4-1 extruding dynamometers 5 are measured.
Level of flexibility stress loading device includes loading plate 6, load transfer plate 7, alignment pin 8, spring 9, jack 10, counter force wall
11st, support tripod 12.
Loading plate 6 is made with load transfer plate 7 using 1cm steel plates, and load transfer plate 7 is close to slopes vertical side, the one end of alignment pin 8
Load transfer plate 7 is fixed on, the alignment pin reserving hole channel being arranged on loading plate 7 is stretched out in one end, and the diameter of alignment pin reserving hole channel is big
In the diameter of alignment pin 8, it is allowed to which load transfer plate 7 and the run-off the straight of loading plate 6 or flexural deformation, the bottom of load transfer plate 7 are processed as arc,
Moving resistance is reduced, so that level presses；Loading plate 6 and load transfer plate 7 the extended spot of pvc pipe offer the reserved perforation of pipeline with
Passed through for pvc pipe and prestressing force dowel 3, the reserved penetration hole diameter of pipeline is more than pvc pipe diameter；Multiple springs 9 are arranged in loading plate 6
Between load transfer plate 7, and each spring 9 is respectively sleeved on alignment pin 8；The fixing end of jack 10 is fixed on counter force wall 11, thousand
The telescopic end on jin top 10 is supported in loading plate 6, and the height that jack 10 is acted on loading plate 6 is located at the three of the total height of slopes
At/mono-, the end portion of counter force wall 11 insertion underground is reinforced using support tripod 12 to counter force wall 11, increases counter-force
The rigidity and bearing capacity of wall 11, support tripod 12 are individually fixed in counter force wall 11 and ground using bolt.
Electrochemical testing device 13 includes, prestressing force dowel 3 as working electrode or without presstressed reinforcing steel 14, auxiliary electrode
15th, reference electrode 16, working electrode wire 17, reference electrode wire 18, auxiliary electrode wire 19, electrochemical workstation 20, can
Mode oxygen supply pump 21, oxygen hose 22, sealing ring 23, insulation static line 24 etc..
Prestressing force dowel 3 is connected with prestressing force working electrode wire 17-1, works electric with without prestressing force without presstressed reinforcing steel 14
Polar conductor 17-2 connect, prestressing force dowel 3 or without presstressed reinforcing steel 14 as working electrode when tested respectively, without presstressed reinforcing steel
14 are used for comparative analysis, and prestressing force dowel 3 is arranged at three-way pipe middle part, threeway bottom of the tube is arranged at without presstressed reinforcing steel 14；Auxiliary
Electrode 15 is connected with auxiliary electrode wire 19, and auxiliary electrode 15 is arranged at prestressing force dowel 3 and without between presstressed reinforcing steel 14；Without pre-
Stress rib 14 and auxiliary electrode 15 are hung in three-way pipe using insulation static line 24, and insulation static line 24 has certain straight
Footpath, can make prestressed anchor muscle 3, be mutually not in contact with each other without presstressed reinforcing steel 14, auxiliary electrode 15.Auxiliary electrode 15 with without presstressed reinforcing steel
14 two ends are free end, do not fix, and in three-way pipe, three-way pipe are hung on merely by insulation static line 24
In.
Reference electrode 16 can be inserted into three-way pipe by the 3rd port of three-way pipe, and reference electrode 16 is led with reference electrode
Line 18 is connected, and reference electrode 16 can be used calomel electrode, is put into during test in the corrosive liquid in three-way pipe, reference electrode 16 not with
Prestressing force dowel 3, contacted without presstressed reinforcing steel 14, auxiliary electrode 15；Prestressing force working electrode wire 17-1 one end and prestressed anchor
Muscle 3 is welded, another termination electrochemical workstation 20, is welded with without presstressed reinforcing steel 14 without prestressing force working electrode wire 17-2 one end
Connect, the other end is drawn and is followed by electrochemical workstation 20, and the one end of auxiliary electrode wire 19 is welded with auxiliary electrode 15, the other end is drawn
The welding of electrochemical workstation 20, the one end of reference electrode wire 18 and reference electrode is followed by, it is another to terminate electrochemical workstation 20, respectively
Individual electrode（15、16）, prestressing force dowel 4, use epoxy sealing without presstressed reinforcing steel 14 and wire weld；Adjustable oxygen supply
Pump 21 connects oxygen hose 22 after spinner flowmeter is demarcated, and the outlet side of oxygen hose 22 is placed in threeway bottom of the tube, corrosive liquid is entered
Row oxygen supply, all electrodes can be installed before the tensioning of prestressing force dowel 3.
Embodiment：Now with an excavation for highway bedding rock sloper, anchoring and corrosive environment under timeliness evolved behavior model
The implementation steps of this pilot system are illustrated as a example by experiment.
1st, according to research needs, slopes are made, the slopes are used to simulate natural side slope, can enter by Highway Slope Design ratio of slope
Row is excavated, specially：Design a model experiment than chi relation, physical parameter, the power of rock stratum and structural plane according to natural slopes
Learn parameter and configure formation material 1 and structural plane material 25 than chi relation by model test, rock is made using formation material 1
Layer, is prefabricated with rock mass reserving hole channel on rock stratum, lifting rock stratum is layered from the bottom to top according to setting inclination angle, often completes one layer thereon
The pvc pipe in corrosion pond 2 is set in the uniform laying structure facestock material 25 in portion, rock mass reserving hole channel, until completing reserved containing rock mass
The slopes in duct, corrode and prestressing force dowel 3 are placed in the pvc pipe in pond 2, and rock mass reserving hole channel direction is set with prestressing force dowel 3
Direction is parallel；
2nd, make and level of flexibility stress loading device is installed, specially：Load transfer plate 7 is close to slopes vertical side, is set up
Loading plate 6, loading plate 6 and load transfer plate 7 open up the pipeline that is passed through for pvc pipe and prestressing force dowel 3 and reserve in the extended spot of pvc pipe
Perforation, load transfer plate 7, the alignment pin that the other end is stretched out on loading plate 6 are fixed in sheathed spring 9 on alignment pin 8, one end of alignment pin 8
Reserving hole channel, sets up counter force wall 11, and the end portion of counter force wall 11 insertion underground is carried out using support tripod 12 to counter force wall 11
Reinforce, the fixing end of jack 10 is fixed on counter force wall 11, the telescopic end of jack 10 is supported in loading plate 6；
The 3rd, strain sensing equipment 27, displacement sensing equipment 26 and correlation displacement sensor mounting bracket are installed.Strain sensing
Equipment 27 can use foil gauge, foil gauge to spend mode to be pasted on slopes side different parts respectively by 45 ° of triaxial strains, and displacement is passed
Sense equipment 26 can use percentage tabular form displacement transducer, and displacement sensing equipment 26 is fixed on the displacement transducer installation that shaped steel is made
Support, displacement transducer mounting bracket is fixed on ground, and the gauge head directly contact measuring point of displacement sensing equipment 26, measuring point uses firm
Property blockage is made, and rigid blockage is screwed in slopes side diverse location；
4th, side slope face excavation is carried out according to design ratio of slope, and carries out strain with displacement data collection；
5th, corrosion pond and electrochemical testing device are made and is installed, specially：It is pre- that the pvc pipe in corrosion pond 2 is arranged on rock mass
In boxing out, the pipeline that pvc pipe one end is stretched out on loading plate 6 and load transfer plate 7 is reserved perforation and is connected with the first port of three-way pipe,
The first port and second port of three-way pipe are located along the same line, and the second port of three-way pipe is closed with lid, three-way pipe
The lower end that the upper end of prestressing force dowel 3 passes through pvc pipe, dynamometer 5, prestressing force dowel 3 upward, is passed through three-way pipe by the 3rd port
Second port lid, counter force wall 11, prestressing force dowel 3 do not contact with pvc pipe, will be without presstressed reinforcing steel 14 and auxiliary electrode 15
Hung in three-way pipe using insulation static line 24, prestressing force dowel 3, be mutually not in contact with each other without presstressed reinforcing steel 14, auxiliary electrode 15,
Reference electrode is placed into the pipeline of the 3rd port of three-way pipe, and by auxiliary electrode 15, reference electrode 16 by aiding in electricity
Polar conductor 19, reference electrode wire 18 are connected with electrochemical workstation 20, and electrochemical workstation 20 can be used CS350 type electrochemistry
Work station, prestressing force working electrode wire 17-1 is passed through by prestressing force dowel 3 or without presstressed reinforcing steel 14 and without prestressing force work respectively
Make electrode cable 17-2 to be connected with electrochemical workstation 20；
6th, counter force wall 11 is fixed in the lower end of prestressing force dowel 3 using lower end anchorage 4-2, dynamometer 5 is positioned over upper end
Between anchorage 4-1 and the side slope face of slopes, the one end of dynamometer 5 is adjacent to domatic, and the other end of dynamometer 5 is contacted with upper end anchorage 4-1,
Tensioning is carried out using the upper end of punching jack pair prestressing force dowel 3, and is locked prestressing force dowel 3 using upper end anchorage 4-1
Stress and displacement data during the side slope face of slopes, collection slope anchorage；
7th, the second port to three-way pipe carries out water shutoff treatment, prepares corrosive liquid and the 3rd port by three-way pipe irrigates
To in three-way pipe and pvc pipe, corrosive liquid can be used NaCl solution or Na to corrosive liquid2SO4Solution；
8th, oxygen supply pump is demarcated using spinner flowmeter, oxygen hose is inserted the bottom of three-way pipe after oxygen supply pump connection oxygen hose
Portion；
9th, by design frequency to the detection prestressing force of electrochemical workstation 20 dowel 3 or without presstressed reinforcing steel 14 after completing
Electrochemical parameter, and the detection of dynamometer 5, strain sensing equipment 27, displacement sensing equipment 26 the phase such as stress, strain, displacement
Close data to be acquired, carry out anchoring bedding rock sloper timeliness evolved behavior research under corrosive environment；Wherein electrochemical parameter passes through
Electrochemical workstation is tested using three-electrode system, and three electrodes are respectively auxiliary electrode 15, reference electrode 16 and working electrode,
When prestressing force dowel 3 is tested, prestressing force dowel 3 is working electrode, by prestressing force dowel 3 by working electrode wire and electrification
Learn work station 20 connect, when test without presstressed reinforcing steel 14 when, without prestressing force dowel 14 be working electrode, will without presstressed reinforcing steel 14 with
Electrochemical workstation 20 is connected.
Finally it should be noted that above example is only used to illustrate the technical solution of the utility model rather than to this practicality
The limitation of novel protected scope, although being explained in detail to the utility model with reference to preferred embodiment, the common skill of this area
Art personnel should be appreciated that can modify or equivalent to the technical solution of the utility model, without deviating from this practicality
The spirit and scope of new technique scheme.
Claims (4)
1. a kind of anchoring bedding rock sloper model assay systems that can simulate corrosive environment, including level of flexibility stress loading device,
Characterized in that, also include anchored slope model system and electrochemical testing device (13),
Anchored slope model system includes slopes and corrosion pond (2), and slopes include the rock set from the bottom to top according to setting inclination angle
Layer, the structural plane material (25) being equipped between each rock stratum is prefabricated with rock mass reserving hole channel on rock stratum, slopes side is vertical
Side, opposite side is side slope face, and corrosion pond (2) includes pvc pipe, three-way pipe and lid, and pvc pipe, PVC are buried in rock mass reserving hole channel
Pipe upper port is opened wide, and pvc pipe upper port is concordant with the side slope face of slopes, and pvc pipe lower port stretches out rock mass reserving hole channel and with three
The first port connection of siphunculus, the second port of three-way pipe is closed with lid, and upward, slopes sidepiece is or not the 3rd port of three-way pipe
Strain sensing equipment (27) is set with setting position, displacement sensing equipment (26) is installed on slopes side,
Electrochemical testing device (13) is including prestressing force dowel (3), without presstressed reinforcing steel (14), auxiliary electrode (15), reference electrode
(16) and electrochemical workstation (20),
Prestressing force dowel (3) one end uses lower end anchorage (4- through after lid, the counter force wall (11) of the second port of three-way pipe
2) counter force wall (11) is fixed on, after prestressing force dowel (3) other end passes through pvc pipe, dynamometer (5), is used upper end anchorage (4-1)
The side slope face of slopes is fixed on,
Hung in three-way pipe by the static line that insulate (24) without presstressed reinforcing steel (14) and auxiliary electrode (15)；Reference electrode
(16) be arranged in three-way pipe, prestressing force dowel (3), without presstressed reinforcing steel (14), auxiliary electrode (15), reference electrode (16) mutually
Do not contact and be connected with electrochemical workstation (20) by wire respectively,
Level of flexibility stress loading device integrally provides loading force for the vertical side of slopes.
2. a kind of anchoring bedding rock sloper model assay systems that can simulate corrosive environment according to claim 1, its feature
It is that described level of flexibility stress loading device includes loading plate (6), load transfer plate (7) and counter force wall (11), load transfer plate (7)
It is close to the setting of slopes vertical side, load transfer plate (7) is fixed in alignment pin (8) one end, and the other end stretches out and is arranged on determining for loading plate (6)
Position pin reserving hole channel, loading plate (6) is offered for pvc pipe and prestressing force dowel (3) with load transfer plate (7) in the extended spot of pvc pipe
The reserved perforation of pipeline for passing through；Be arranged with spring (9) on alignment pin (8), spring (9) positioned at loading plate (6) and load transfer plate (7) it
Between；The fixing end of jack (10) is fixed on counter force wall (11), and the telescopic end of jack (10) is supported in loading plate (6), counter-force
Wall (11) end portion is embedded in underground and is reinforced by support tripod (12).
3. a kind of anchoring bedding rock sloper model assay systems that can simulate corrosive environment according to claim 2, its feature
It is that the height that described jack (10) is acted on loading plate (6) is located at 1/3rd of the total height of slopes.
4. a kind of anchoring bedding rock sloper model assay systems that can simulate corrosive environment according to claim 1, its feature
It is that oxygen hose one end is inserted into three-way pipe and positioned at the bottom of three-way pipe, and the oxygen hose other end is connected with oxygen supply pump.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525707A (en) * | 2016-11-23 | 2017-03-22 | 长江水利委员会长江科学院 | Anchorage bedding slope model test system and method for simulating corrosive environment |
| CN110501280A (en) * | 2019-08-30 | 2019-11-26 | 广东工业大学 | A kind of corrosion simulated device and method for prestressed stretch-draw anchorage |
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2016
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525707A (en) * | 2016-11-23 | 2017-03-22 | 长江水利委员会长江科学院 | Anchorage bedding slope model test system and method for simulating corrosive environment |
| CN106525707B (en) * | 2016-11-23 | 2024-01-30 | 长江水利委员会长江科学院 | Anchoring bedding slope model test system and method capable of simulating corrosion environment |
| CN110501280A (en) * | 2019-08-30 | 2019-11-26 | 广东工业大学 | A kind of corrosion simulated device and method for prestressed stretch-draw anchorage |
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