CN107478812A - Rock And Soil large dosage expansion cement slurry expansion process visualization device and application method - Google Patents
Rock And Soil large dosage expansion cement slurry expansion process visualization device and application method Download PDFInfo
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- CN107478812A CN107478812A CN201710556571.7A CN201710556571A CN107478812A CN 107478812 A CN107478812 A CN 107478812A CN 201710556571 A CN201710556571 A CN 201710556571A CN 107478812 A CN107478812 A CN 107478812A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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- G01N33/383—Concrete, cement
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Abstract
The present invention discloses a kind of Rock And Soil large dosage expansion cement slurry expansion process visualization device, including for containing the rectangular box body of soil or rock sample, rectangular box body open-top, bottom lock；Rectangular box body wherein one side is open and equipped with safety glass, safety glass outer surface is provided with graduated scale, safety glass medial surface is provided with the tubing for being used for adding expansion cement slurry, anchor pole is provided with tubing, anchor pole is provided with pressure sensor and foil gauge, and pressure sensor and foil gauge output end are connected with data collecting system；It is connected at the top of rectangular box body by supporting frame with installing plate, installing plate bottom is connected with jack fixing end, and the bearing plate to match with rectangular box body open top is provided with inside supporting frame, and jack telescopic end is close to bearing plate upper surface；Invention additionally discloses corresponding application method, finally realize different bulking agent levels cement mortars under the conditions of different soils compactness or crustal stress change over time and anchor rod drawing experiment failure mode it is visualized.
Description
Technical field
The present invention relates to civil engineering test field, in particular to a kind of Rock And Soil large dosage expansion cement slurry expansion process
Visualization device and application method.
Background technology
Application of the swelling agent in current construction is very extensive, and its major function is in compensating concrete hardening process
Drying shrinkage and shrinkage, be concrete in betterment works some correlated performances, swelling agent can apply to the ground relevant with waterproof
Under, water conservancy project, Hai Gong, subway, the reinforced concrete work such as tunnel, improve the density, anti-of concrete in use
Oozing property, wearability, and bond stress to reinforcing bar etc..Expansion cement slurry gradually starts to apply in support engineering at this stage, can
So that expansion cement slurry is used for into anchorage body, anti-pulling of anchor bar is improved using its lateral expansion performance, this apply in rock mass and
There is significant economic benefit in terms of soil body anchorage technology, but in swelling agent in use, there is strict demand in terms of to quality, mistake
The high too low use for being all unfavorable for engineering, it could even be possible to exceeding expected effect, therefore need to set with reference to Practical Project overview
The content of meter swelling agent, and influence of the expansion cement slurry under different bulking agent levels and the effect of different external force to country rock
Journey, it is unpredictable in engineering design, and the problem of workmen compares concern, therefore the cement of different bulking agent levels
The expansion process visualization of slurry at different conditions has high engineering research to be worth expansion cement slurry extensive use, but
In Practical Project, the expansion process of large dosage expansion cement slurry is unfavorable for also without specific visualization device and observational technique
People study three main bodys under the conditions of different soils compactness or crustal stress（Anchor pole, anchoring body, soil mass or rock mass）Two interfaces（Three
Interface between main body）Failure mode and Evolution.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency, there is provided a kind of Rock And Soil large dosage expansion cement slurry expansion process can
Put depending on makeup and application method, directly to observe the expansion process of large dosage expansion cement slurry under different conditions, realize not
With under the conditions of soil compactness or crustal stress, different bulking agent levels cement mortars change over time and anchor rod drawing experiment destroys mould
Formula it is visualized, be advantageous to study the interfacial failure pattern of three main body two under the conditions of different soils compactness or crustal stress and drill
Law.
The present invention is in order to solve the above technical problems, used technical scheme is：A kind of Rock And Soil large dosage expanding cement
Expansion process visualization device is starched, including for containing the rectangular box body of soil or rock sample, is opened at the top of the rectangular box body
Put, bottom lock；
The rectangular box body wherein one side is open and equipped with safety glass, and the safety glass outer surface is provided with scale
Chi, the safety glass medial surface are provided with the tubing for being used for adding expansion cement slurry, anchor pole, the anchor pole are provided with the tubing
Pressure sensor and foil gauge are provided with, pressure sensor and the foil gauge output end is connected with data collecting system；
It is connected at the top of the rectangular box body by supporting frame with installing plate, the installing plate bottom connects with jack fixing end
Connect, the bearing plate to match with rectangular box body open top is provided with inside support frame as described above body, jack telescopic end is close to hold
Pressing plate upper surface.
Preferably, the tubing is semi-circular shape steel-tube construction, and the side that the bearing plate contacts with tubing is provided with and pipe
The semi-circular recesses that material profile matches.
Preferably, the anchor pole is made up of cylindrical bar and semi-cylindrical bar, and the exterior arc surface of the semi-cylindrical bar is opened
Trough provided with installation pressure sensor and foil gauge, the cylindrical bar are located at the top of safety glass, the semi-cylindrical bar
Rectangular surfaces be close to safety glass medial surface.
Preferably, the rectangular box body is welded for steel plate materialses, and support frame as described above body includes being welded in cuboid
Four screw thread steel columns of casing top corner location, the screw-thread steel column top are connected by nut with installing plate.
Preferably, the installing plate bottom be also vertically provided with four be used for limit jack be displaced sideways it is spacing
Steel column.
Preferably, the safety glass is rectangle, and anchor pole is close to overlap on the inside of safety glass and with its vertical centerline.
It is further preferable that graduated scale includes vertical graduated scale and horizontal graduated scale, wherein vertical graduated scale and safety glass
Outside upright center line overlaps, and horizontal graduated scale is horizontally disposed with multiple and orthogonal with vertical graduated scale.
In addition, the present invention also provides the use of described Rock And Soil large dosage expansion cement slurry expansion process visualization device
Method, comprise the following steps：
Step 1）：In rectangular box body wherein one side installation safety glass, graduated scale is set in safety glass outer surface, will be managed
Material is installed on safety glass medial surface, and anchor pole is extend into tubing, and by the pressure sensor on anchor pole and foil gauge output end
It is connected with data collecting system；
Step 2）：One layer of lubricating oil is applied in safety glass inner surface, to reduce large dosage expanding cement rubbing in expansion process
Resistance, soil is then filled into cuboid box body or is put into the complete rock sample of well cutting, then by bearing plate be placed on soil or
Rock sample surface, applies that different pressure makes soil or rock sample reaches different compactness and differently by jack pair bearing plate
Stress, record the Pressure maximum value of application；
Step 3）：Different content expansion cement slurry is prepared according to experiment demand, pours into tubing, ordinary cement is used at the top of grouting
Slurry sealing, after the completion of extract tubing out；
Step 4）：Contacted by the vertical and horizontal soil of visual safety glass observation or rock sample with expansion cement slurry initial
Position, and read by graduated scale, record data, as the primary data before soil or rock sample expansion；By high-definition camera just
To safety glass visible surface, it in video input computer, will at regular intervals observe and record vertical and laterally native after video recording
The position of earth or rock sample, i.e. soil or rock sample expansion strain, then it is plotted in different swelling agents under the conditions of different soils compactness
The cement mortar soil swelling strain time history plot of content, and differently different bulking agent levels under stress condition
Cement mortar rock mass expansion strain time history plot；
Step 5）：Pressure data is gathered by data collecting system, the pressure after the expansion cement slurry of collection perfusion at regular intervals
Force data, that is, compression is expanded, draw out the cement mortar compression time history plot of different bulking agent levels；
Step 6）：After conserving more days, pull-out test, and the destruction by camera record anchoring body and generation position are carried out to anchor pole
The situation of shifting, and test data is measured by foil gauge and pressure sensor, all data are depicted as chart, obtain withdrawal resistance
The rule changed with bulking agent levels.
Beneficial effects of the present invention：
1st, apparatus of the present invention control is good, can simulate different occurrence conditions, is drawn so as to carry out the rock soil anchor under different occurrence conditions
Pull out experiment；Can obtain under the conditions of different soils compactness or differently under stress condition different bulking agent levels anchoring system
System changes over time under the conditions of rule, and different soils compactness or differently three main bodys under stress condition（Anchor pole, anchoring
Body, soil mass or rock mass）Two interfaces（Interface between three main bodys）Failure mode and Evolution, withdrawal resistance is finally given with expansion
The rule of agent content change.
2nd, the device can realize that creep visualizes by horizontal, vertical graduated scale and phantom high-speed camera, can
Reflect the change under the effect of large dosage expansion cement slurry in true Rock And Soil environment；
3rd, anchor pole, which changes into, can use spiral CT machine sweep test after nonmetallic materials, the boundary of three main body two in quantitative study drawing process
The destructive process in face；
4th, under the conditions of various soil mass being studied, differently under stress condition, anti-pulling of anchor bar with bulking agent levels changing rule,
The interface normal stress of anchoring body, shear stress, the regularity of distribution of axle power；
5th, the device can be recycled, simple in construction, and material is easy to get, easy to operate, significantly save experimentation cost and cycle, Environmental Effect
It is beneficial notable.
Brief description of the drawings
Fig. 1 is a kind of structural representation of Rock And Soil large dosage expansion cement slurry expansion process visualization device；
Fig. 2 is the structural representation of anchor pole in Fig. 1；
Fig. 3 is Fig. 2 another viewing angle constructions schematic diagram；
In figure, rectangular box body 1, safety glass 2, graduated scale 3, vertical graduated scale 3.1, horizontal graduated scale 3.2, tubing 4, anchor pole
5th, cylindrical bar 5.1, semi-cylindrical bar 5.2, trough 5.3, supporting frame 6, screw thread steel column 6.1, nut 6.2, installing plate 7, limit
Position steel column 7.1, bearing plate 8.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of Rock And Soil large dosage expansion cement slurry expansion process visualization device, including for containing soil
The rectangular box body 1 of earth or rock sample, the open-top of rectangular box body 1, bottom lock；
The rectangular box body 1 wherein one side is open and equipped with safety glass 2, and the outer surface of safety glass 2, which is provided with, carves
Chi 3 is spent, the medial surface of safety glass 2 is provided with the tubing 4 for being used for adding expansion cement slurry, anchor pole 5 is provided with the tubing 4,
The anchor pole 5 is provided with pressure sensor and foil gauge, pressure sensor and the foil gauge output end and data collecting system
Connection；
The top of rectangular box body 1 is connected by supporting frame 6 with installing plate 7, and the bottom of installing plate 7 is fixed with jack
End connection, the inside of support frame as described above body 6 are provided with the bearing plate 8 to match with the open top of rectangular box body 1, jack telescopic end
It is close to the upper surface of bearing plate 8.
Preferably, the tubing 4 is semi-circular shape steel-tube construction, the side that the bearing plate 8 contacts with tubing 4 be provided with
The semi-circular recesses that the profile of tubing 4 matches.This design does not interfere with tubing 4 when bearing plate 8 is pressurized.
Preferably, as shown in Figures 2 and 3, the anchor pole 5 is made up of cylindrical bar 5.1 and semi-cylindrical bar 5.2, and described half
The exterior arc surface of cylindrical bar 5.2 offers the trough 5.3 of installation pressure sensor and foil gauge, the cylindrical bar 5.1
In the top of safety glass 2, the rectangular surfaces of the semi-cylindrical bar 5.2 are close to the medial surface of safety glass 2.It is this to be designed with two originals
Cause, first, the rectangular surfaces of semi-cylindrical bar 5.2 can be close to the medial surface of safety glass 2, the expansion cement slurry of perfusion will not be by anchor
Bar 5 is overall all to be surrounded, and reference position can be used as by leaving the rectangular surfaces of semi-cylindrical bar 5.2, to facilitate observation measurement anchoring body
And the displacement that both sides soil is occurred centered on anchor pole 5 to both sides；Second, pressure sensor and foil gauge are arranged on semi-cylindrical bar
After 5.2 exterior arc surface, pressure sensor can accurately tests the power of expansion extruding, and foil gauge is accurately tested anchor pole 5 and existed
In drawing process and extrusion process strain deformation.
Preferably, the rectangular box body 1 is welded for steel plate materialses, and support frame as described above body 6 is rectangular including being welded in
Four screw thread steel columns 6.1 of the top corner location of body casing 1, the top of screw thread steel column 6.1 pass through nut 6.2 and installing plate 7
Connection.
Preferably, the bottom of installing plate 7 is also vertically provided with four and is used to limit the limit that jack is displaced sideways
Position steel column 7.1.
Preferably, the safety glass 2 is rectangle, anchor pole 5 be close to the inner side of safety glass 2 and with its vertical centerline weight
Close.
It is further preferable that graduated scale 3 includes vertical graduated scale 3.1 and horizontal graduated scale 3.2, wherein vertical graduated scale 3.1
Overlapped with the outside upright center line of safety glass 2, horizontal graduated scale 3.2 is horizontally disposed with multiple and mutual with vertical graduated scale 3.1
Vertically.Preferably, graduated scale 3 is thousand scale division chis.
In addition, the present invention also provides the use of described Rock And Soil large dosage expansion cement slurry expansion process visualization device
Method, comprise the following steps：
Step 1）：In the wherein one side installation safety glass 2 of rectangular box body 1, graduated scale 3 is set in the outer surface of safety glass 2,
Tubing 4 is installed on the medial surface of safety glass 2, anchor pole 5 is extend into tubing 4, and by the pressure sensor on anchor pole 5 and strain
Piece output end is connected with data collecting system；
Step 2）：One layer of lubricating oil is applied in the inner surface of safety glass 2, to reduce large dosage expanding cement rubbing in expansion process
Resistance, soil is then filled into rectangular box body 1 or is put into the complete rock sample of well cutting, bearing plate 8 is then placed on soil
Or rock sample surface, apply that different pressure makes soil or rock sample reaches different compactness and not by jack pair bearing plate 8
Same crustal stress, record the Pressure maximum value of application；
Step 3）：Different content expansion cement slurry is prepared according to experiment demand, pours into tubing 4, light water is used at the top of grouting
Mud seal, after the completion of extract out tubing 4；
Step 4）：By visual safety glass 2 observe that vertical and horizontal soil or rock sample contacts with expansion cement slurry just
Beginning position, and read by graduated scale 3, record data, as the primary data before soil or rock sample expansion；By high-definition camera
The visible surface of face safety glass 2, it in video input computer, will at regular intervals observe and record vertical and horizontal after video recording
The position of soil or rock sample, i.e. soil or rock sample expansion strain, then it is plotted in different expansions under the conditions of different soils compactness
Agent content cement mortar soil swelling strain time history plot, and differently under stress condition different swelling agents contain
The cement mortar rock mass expansion strain time history plot of amount；
Step 5）：Pressure data is gathered by data collecting system, the pressure after the expansion cement slurry of collection perfusion at regular intervals
Force data, that is, compression is expanded, draw out the cement mortar compression time history plot of different bulking agent levels；
Step 6）：After conserving more days, pull-out test, and the destruction and generation for passing through camera record anchoring body are carried out to anchor pole 5
The situation of displacement, and test data is measured by foil gauge and pressure sensor, all data are depicted as chart, can be obtained
The anchor system of different bulking agent levels changes over time rule under the conditions of different soils compactness or differently under stress condition
Rule, and under the conditions of different soils compactness or differently three main bodys under stress condition（Anchor pole, anchoring body, soil mass or rock mass）
Two interfaces（Interface between three main bodys）Failure mode and Evolution, finally give the rule that withdrawal resistance changes with bulking agent levels
Rule.
Embodiment 1 and embodiment 2 are used as using the implementation process of soil and rock sample respectively.
Embodiment 1
Step 1）：In the wherein one side installation safety glass 2 of rectangular box body 1, graduated scale 3 is set in the outer surface of safety glass 2,
Tubing 4 is installed on the medial surface of safety glass 2, anchor pole 5 is extend into tubing 4, and by the pressure sensor on anchor pole 5 and strain
Piece output end is connected with data collecting system；The present embodiment graduated scale 3 includes vertical graduated scale 3.1 and horizontal graduated scale 3.2, its
In vertical graduated scale 3.1 is overlapped with the outside upright center line of safety glass 2, horizontal graduated scale 3.2 is horizontally disposed with three and with erecting
It is orthogonal to graduated scale 3.1；Tubing 4 is semi-circular shape steel-tube construction, and anchor pole 5 is by cylindrical bar 5.1 and semi-cylindrical bar 5.2
Composition, the exterior arc surface of semi-cylindrical bar 5.2 equidistantly offer the trough 5.3 of installation pressure sensor and foil gauge, cylinder
Shape bar 5.1 is located at the top of safety glass 2, and the rectangular surfaces of the semi-cylindrical bar 5.2 are close to the medial surface of safety glass 2；
Step 2）：One layer of lubricating oil is applied in the inner surface of safety glass 2, to reduce large dosage expanding cement rubbing in expansion process
Resistance, soil is then filled into rectangular box body 1, bearing plate 8 is then placed on soil surface, pass through jack pair bearing plate
8, which apply different pressure, makes soil reach different compactness and different crustal stress, records the Pressure maximum value of application, this implementation
Example applies 30KN pressure；
Step 3）：Different content expansion cement slurry is prepared according to experiment demand, pours into tubing 4, light water is used at the top of grouting
Mud seal, after the completion of extract out tubing 4；In the present embodiment, when preparing different content expansion cement slurry, electronic scale weighs 3 groups
Cement marked as 42.5, weight are respectively 1700 grams, 1500 grams, 1300 grams, weigh 300 grams, 500 grams, 700 grams of expansions respectively
Agent；Weigh three groups of warm water（50 degrees centigrades）, every group 600 grams；Cement, swelling agent and warm water are mixed successively, are configured to swollen
Swollen agent content is 15%, 25%, 35% expansion cement slurry.
Step 4）：By visual safety glass 2 observe vertical and horizontal soil contacted with expansion cement slurry it is initial
Position, and read by graduated scale 3, record data, as the primary data before soil swelling；By high-definition camera face tempering
The visible surface of glass 2, it in video input computer, will at regular intervals be observed after video recording and record vertical and horizontal soil or rock
The position of sample, i.e. soil swelling strain, and are then plotted in the cement mortar of different bulking agent levels under the conditions of different soils compactness
Soil swelling strains time history plot；Specific implementation process is as follows：1 hour after expansion cement slurry is irrigated, every
The expansion status and record of 10 minutes observation expansion cement slurries, between 1 to 12 hours, every 1 hour observed data and are recorded,
Between 12 to 48 hours, its data was observed every 6 hours, in the latter week, observation daily is once and record data, record are perpendicular
To the position with horizontal soil, i.e. soil swelling strains, and then draws the cement mortar soil swelling strain of different bulking agent levels
Time history plot；
Step 5）：Pressure data is gathered by data collecting system, the pressure after the expansion cement slurry of collection perfusion at regular intervals
Force data, that is, compression is expanded, draw out the cement mortar compression time history plot of different bulking agent levels；This reality
Apply in example, it is necessary to carried out that turgor pressure stress data is calculated according to the pressure data of collection, draw different swelling agent quality and contain
The expansion cement slurry compression of amount changes over time image；
Step 6）：After maintenance 28 days, pull-out test, and the destruction and generation for passing through camera record anchoring body are carried out to anchor pole 5
The situation of displacement, and test data is measured by foil gauge and pressure sensor, it is a certain contrast can be observed by photologging
Point is from the situation of change for starting to pull to end.
Embodiment 2
Step 1）：In the wherein one side installation safety glass 2 of rectangular box body 1, graduated scale 3 is set in the outer surface of safety glass 2,
Tubing 4 is installed on the medial surface of safety glass 2, anchor pole 5 is extend into tubing 4, and by the pressure sensor on anchor pole 5 and strain
Piece output end is connected with data collecting system；The present embodiment graduated scale 3 includes vertical graduated scale 3.1 and horizontal graduated scale 3.2, its
In vertical graduated scale 3.1 is overlapped with the outside upright center line of safety glass 2, horizontal graduated scale 3.2 is horizontally disposed with three and with erecting
It is orthogonal to graduated scale 3.1；Tubing 4 is semi-circular shape steel-tube construction, and anchor pole 5 is by cylindrical bar 5.1 and semi-cylindrical bar 5.2
Composition, the exterior arc surface of semi-cylindrical bar 5.2 equidistantly offer the trough 5.3 of installation pressure sensor and foil gauge, cylinder
Shape bar 5.1 is located at the top of safety glass 2, and the rectangular surfaces of the semi-cylindrical bar 5.2 are close to the medial surface of safety glass 2；
Step 2）：One layer of lubricating oil is applied in the inner surface of safety glass 2, to reduce large dosage expanding cement rubbing in expansion process
Resistance, the complete rock sample of well cutting is then put into rectangular box body 1, bearing plate 8 is then placed on rock sample surface, passes through thousand
Jin top, which applies different pressure to bearing plate 8, makes rock sample reach different compactness and different crustal stress, records the pressure of application
Maximum；The present embodiment applies 30KN, 40KN, 50KN pressure to three devices respectively；
Step 3）：Different content expansion cement slurry is prepared according to experiment demand, pours into tubing 4, light water is used at the top of grouting
Mud seal, after the completion of extract out tubing 4；In the present embodiment, electronic scale weighs 1700 grams of the cement that 3 deck labels are 42.5, claims
300 grams of swelling agents are measured, weigh warm water（50 degrees centigrades）600 grams, cement, swelling agent and warm water are mixed successively, are configured to
Bulking agent levels are 15% expansion cement slurry, and expansion cement slurry is poured into a mould in the tubing 4 into different visual devices respectively；
Step 4）：By visual safety glass 2 observe that vertical and horizontal soil or rock sample contacts with expansion cement slurry just
Beginning position, and read by graduated scale 3, record data, as the primary data before soil or rock sample expansion；By high-definition camera
The visible surface of face safety glass 2, it in video input computer, will at regular intervals observe and record vertical and horizontal after video recording
The position of soil or rock sample, i.e. soil or rock sample expansion strain, then it is plotted in different expansions under the conditions of different soils compactness
Agent content cement mortar soil swelling strain time history plot, and differently under stress condition different swelling agents contain
The cement mortar rock mass expansion strain time history plot of amount；Specific implementation process is as follows：1 after expansion cement slurry is irrigated
Hour, every the expansion status of 10 minutes observation expansion cement slurries, and record, between 1 to 12 hours, observed every 1 hour
Data simultaneously record, and between 12 to 48 hours, its data were observed every 6 hours, in the latter week, observes once and records daily
Data, record vertically and horizontal rock sample position, i.e. rock sample expansion strain, then draw the cement magmatic rocks of different crustal stress situations
Sample expansion strain time history plot；
Step 5）：Pressure data is gathered by data collecting system, the pressure after the expansion cement slurry of collection perfusion at regular intervals
Force data, that is, compression is expanded, be plotted in expansion cement slurry compression under different soil conditions and change over time image；
Step 6）：After maintenance 28 days, pull-out test, and the destruction and generation for passing through camera record anchoring body are carried out to anchor pole 5
The situation of displacement, and test data is measured by foil gauge and pressure sensor, it is a certain contrast can be observed by photologging
Point is from the situation of change for starting to pull to end.
The above embodiments are only the preferred technical solution of the present invention, and are not construed as the limitation for the present invention, this Shen
Please in embodiment and embodiment in feature in the case where not conflicting, can mutually be combined.The protection model of the present invention
Enclose the equivalent substitution side of technical characteristic in the technical scheme that should be recorded with claim, including the technical scheme of claim record
Case is protection domain.Equivalent substitution i.e. within this range is improved, also within protection scope of the present invention.
Claims (8)
1. a kind of Rock And Soil large dosage expansion cement slurry expansion process visualization device, including for containing the length of soil or rock sample
Cube casing（1）, the rectangular box body（1）Open-top, bottom lock, it is characterised in that：
The rectangular box body（1）Wherein one side is open and equipped with safety glass（2）, the safety glass（2）Outer surface
Provided with graduated scale（3）, the safety glass（2）Medial surface is provided with the tubing for being used for adding expansion cement slurry（4）, the tubing
（4）It is interior to be provided with anchor pole（5）, the anchor pole（5）Pressure sensor and foil gauge are provided with, the pressure sensor and foil gauge are defeated
Go out end to be connected with data collecting system；
The rectangular box body（1）Top passes through supporting frame（6）With installing plate（7）Connection, the installing plate（7）Bottom and thousand
The fixing end connection of jin top, support frame as described above body（6）Inside is provided with and rectangular box body（1）The bearing plate that open top matches
（8）, jack telescopic end is close to bearing plate（8）Upper surface.
2. Rock And Soil large dosage expansion cement slurry expansion process visualization device according to claim 1, it is characterised in that：
The tubing（4）For semi-circular shape steel-tube construction, the bearing plate（8）With tubing（4）The side of contact is provided with and tubing（4）Outside
The semi-circular recesses that shape matches.
3. Rock And Soil large dosage expansion cement slurry expansion process visualization device according to claim 1, it is characterised in that：
The anchor pole（5）By cylindrical bar（5.1）With semi-cylindrical bar（5.2）Composition, the semi-cylindrical bar（5.2）Exterior arc surface
Offer the trough of installation pressure sensor and foil gauge（5.3）, the cylindrical bar（5.1）Positioned at safety glass（2）Top,
The semi-cylindrical bar（5.2）Rectangular surfaces be close to safety glass（2）Medial surface.
4. Rock And Soil large dosage expansion cement slurry expansion process visualization device according to claim 1, it is characterised in that：
The rectangular box body（1）It is welded for steel plate materialses, support frame as described above body（6）Including being welded in rectangular box body（1）Top
Four screw thread steel columns of portion's corner location（6.1）, the screw thread steel column（6.1）Top passes through nut（6.2）With installing plate（7）Even
Connect.
5. Rock And Soil large dosage expansion cement slurry expansion process visualization device according to claim 1, it is characterised in that：
The installing plate（7）Bottom is also vertically provided with four and is used to limit the spacing steel column that jack is displaced sideways（7.1）.
6. Rock And Soil large dosage expansion cement slurry expansion process visualization device according to claim 1, it is characterised in that：
The safety glass（2）For rectangle, anchor pole（5）It is close to safety glass（2）Inner side and overlapped with its vertical centerline.
7. Rock And Soil large dosage expansion cement slurry expansion process visualization device according to claim 6, it is characterised in that：
Graduated scale（3）Including vertical graduated scale（3.1）With horizontal graduated scale（3.2）, wherein vertical graduated scale（3.1）With safety glass
（2）Outside upright center line overlaps, horizontal graduated scale（3.2）It is horizontally disposed multiple and with vertical graduated scale（3.1）It is orthogonal.
8. a kind of application method of the Rock And Soil large dosage expansion cement slurry expansion process visualization device described in claim 1,
It is characterized in that：Comprise the following steps：
Step 1）：In rectangular box body（1）Wherein one side installation safety glass（2）, in safety glass（2）Outer surface, which is set, carves
Spend chi（3）, by tubing（4）It is installed on safety glass（2）Medial surface, anchor pole（5）It extend into tubing（4）It is interior, and by anchor pole（5）On
Pressure sensor and foil gauge output end be connected with data collecting system；
Step 2）：In safety glass（2）Inner surface applies one layer of lubricating oil, to reduce large dosage expanding cement in expansion process
Frictional resistance, then to rectangular box body（1）Inside fill soil or be put into the complete rock sample of well cutting, then by bearing plate（8）Put
On soil or rock sample surface, pass through jack pair bearing plate（8）Apply that different pressure makes soil or rock sample reaches different close
Solidity and different crustal stress, record the Pressure maximum value of application；
Step 3）：Different content expansion cement slurry is prepared according to experiment demand, pours into tubing（4）It is interior, with common at the top of grouting
Cement mortar seal, after the completion of extract tubing out（4）；
Step 4）：Pass through visual safety glass（2）What the vertical and horizontal soil of observation or rock sample contacted with expansion cement slurry
Initial position, and pass through graduated scale（3）Read, record data, as the primary data before soil or rock sample expansion；High definition is taken the photograph
Camera face safety glass（2）Visible surface, it in video input computer, will at regular intervals observe and record vertical after video recording
With the position of horizontal soil or rock sample, i.e. soil or rock sample expansion strain, then it is plotted under the conditions of different soils compactness not
Cement mortar soil swelling with bulking agent levels strains time history plot, and differently different swollen under stress condition
The cement mortar rock mass expansion strain time history plot of swollen agent content；
Step 5）：Pressure data is gathered by data collecting system, the pressure after the expansion cement slurry of collection perfusion at regular intervals
Force data, that is, compression is expanded, draw out the cement mortar compression time history plot of different bulking agent levels；
Step 6）：After conserving more days, to anchor pole（5）Carry out pull-out test, and the destruction by camera record anchoring body and hair
The situation of raw displacement, and test data is measured by foil gauge and pressure sensor, all data are depicted as chart, resisted
The rule that pull out force changes with bulking agent levels.
Priority Applications (1)
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| CN109238916A (en) * | 2018-09-29 | 2019-01-18 | 佛山科学技术学院 | A kind of use for laboratory cement slurry monitor station |
| CN109211949A (en) * | 2018-09-30 | 2019-01-15 | 三峡大学 | A kind of test method measuring expansion cement slurry anchoring body and surrounding soil layer compactness based on CT scan |
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| CN111735724B (en) * | 2020-06-23 | 2023-03-10 | 三峡大学 | Device and method for detecting creep stress of in-situ rock-soil body |
| CN111650365A (en) * | 2020-07-14 | 2020-09-11 | 清华大学 | Intelligent grouting multifunctional test device |
| CN111650365B (en) * | 2020-07-14 | 2021-05-07 | 清华大学 | Intelligent grouting multifunctional test device |
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