CN107478812B - 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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- CN107478812B CN107478812B CN201710556571.7A CN201710556571A CN107478812B CN 107478812 B CN107478812 B CN 107478812B CN 201710556571 A CN201710556571 A CN 201710556571A CN 107478812 B CN107478812 B CN 107478812B
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- 239000004568 cement Substances 0.000 title claims abstract description 83
- 239000002689 soil Substances 0.000 title claims abstract description 83
- 239000002002 slurry Substances 0.000 title claims abstract description 72
- 239000011435 rock Substances 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000012800 visualization Methods 0.000 title claims abstract description 19
- 239000005341 toughened glass Substances 0.000 claims abstract description 64
- 239000011888 foil Substances 0.000 claims abstract description 25
- 239000004067 bulking agent Substances 0.000 claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 16
- 238000013480 data collection Methods 0.000 claims abstract description 13
- 230000008961 swelling Effects 0.000 claims description 19
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 238000004873 anchoring Methods 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims description 8
- 230000010412 perfusion Effects 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000007586 pull-out test Methods 0.000 claims description 6
- 230000000007 visual effect Effects 0.000 claims description 6
- 230000006378 damage Effects 0.000 claims description 5
- 239000000284 extract Substances 0.000 claims description 5
- 239000010687 lubricating oil Substances 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000004567 concrete Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 230000005074 turgor pressure Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
- G01N33/383—Concrete or cement
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention discloses a kind of Rock And Soil large dosage expansion cement slurry expansion process visualization device, including the rectangular box body for containing soil or rock sample, rectangular box body open-top, bottom closing；Wherein one side is open and equipped with tempered glass to rectangular box body, tempered glass outer surface is equipped with graduated scale, tempered glass medial surface is equipped with the tubing for adding expansion cement slurry, anchor pole is equipped in tubing, anchor pole is equipped with pressure sensor and foil gauge, and pressure sensor and foil gauge output end are connect with data collection system；It is connect by supporting frame with mounting plate at the top of rectangular box body, mounting plate bottom is connect with jack fixing end, and the bearing plate to match with rectangular box body top opening is equipped with inside supporting frame, and jack telescopic end is close to bearing plate upper surface；Invention additionally discloses corresponding application method, different bulking agent levels cement slurries are changed over time under the conditions of final realization different soils compactness or crustal stress and anchor rod drawing tests the visualized of failure mode.
Description
Technical field
The present invention relates to civil engineering test fields, in particular to a kind of Rock And Soil large dosage expansion cement slurry expansion process
Visualization device and application method.
Background technique
Application of the swelling agent in current construction is very extensive, its major function is in compensating concrete hardening process
Drying shrinkage and shrinkage, be some correlated performances of concrete in betterment works, swelling agent can be applied to relatedly with waterproof
Under, water conservancy project, marine worker, subway, the reinforced concrete works such as tunnel, improve the density, anti-of concrete in use
Infiltration property, wearability, and the bond stress etc. to reinforcing bar.Expansion cement slurry gradually starts to apply in support engineering at this stage, can
Expansion cement slurry is used for anchorage body, improve anti-pulling of anchor bar 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 being more than expected effect, therefore need to set in conjunction with Practical Project overview
The content of meter swelling agent, and influence of the expansion cement slurry under different bulking agent levels and different external forces to country rock
Journey is the problem of unpredictable in engineering design and construction personnel compares concern, therefore the cement of different bulking agent levels
Expansion cement slurry, which is widely applied, in the expansion process visualization of slurry at different conditions has high engineering research to be worth, however
In Practical Project, the expansion process of large dosage expansion cement slurry is unfavorable for there are no specific visualization device and observation method
People study three main bodys (anchor pole, anchoring body, soil mass or rock mass), two interface (three under the conditions of different soils compactness or crustal stress
Interface between main body) failure mode and Evolution.
Summary of the invention
The purpose of the present invention is to overcome the above shortcomings and to provide a kind of Rock And Soil large dosage expansion cement slurry expansion processes can
It is set depending on makeup and application method is realized not with directly observing the expansion process of large dosage expansion cement slurry under different conditions
It is changed over time with bulking agent levels cement slurries different under the conditions of soil compactness or crustal stress and anchor rod drawing test destroys mould
Formula it is visualized, be conducive to study three main bodys, two interfacial failure mode 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 solution is: a kind of Rock And Soil large dosage expanding cement
Expansion process visualization device is starched, including the rectangular box body for containing soil or rock sample, is opened at the top of the rectangular box body
It puts, bottom closing；
Wherein one side is open and equipped with tempered glass to the rectangular box body, and the tempered glass outer surface, which is equipped with, carves
Ruler is spent, the tempered glass medial surface is equipped with the tubing for adding expansion cement slurry, is equipped with anchor pole, the anchor in the tubing
Bar is equipped with pressure sensor and foil gauge, and the pressure sensor and foil gauge output end are connect with data collection system；
It is connect by supporting frame with mounting plate at the top of the rectangular box body, the mounting plate bottom is fixed with jack
End connection, support frame as described above body inside are equipped with the bearing plate to match with rectangular box body top opening, and jack telescopic end is tight
Paste bearing plate upper surface.
Preferably, the tubing is semi-circular shape steel-tube construction, and the side that the bearing plate is contacted with tubing is equipped with and pipe
The semi-circular recesses that material shape matches.
Preferably, the anchor pole is made of cylindrical bar and semi-cylindrical bar, and the exterior arc surface of the semi-cylindrical bar is opened
Trough equipped with installation pressure sensor and foil gauge, the cylindrical bar are located at the top of tempered glass, the semi-cylindrical bar
Rectangular surfaces be close to tempered glass medial surface.
Preferably, the rectangular box body is welded for steel plate materials, and support frame as described above body includes being welded in cuboid
Four screw thread steel columns of top of the box corner location, the screw-thread steel column top are connect by nut with mounting plate.
Preferably, the mounting plate bottom is also vertically equipped with four for limiting the limit that jack is displaced sideways
Steel column.
Preferably, the tempered glass is rectangle, and anchor pole is close to be overlapped on the inside of tempered glass and with its vertical centerline.
It is further preferable that graduated scale includes vertical graduated scale and lateral graduated scale, wherein vertical graduated scale and tempered glass
Outside upright center line is overlapped, and lateral graduated scale is horizontally disposed with multiple and orthogonal with vertical graduated scale.
In addition, the present invention also provides the uses of the Rock And Soil large dosage expansion cement slurry expansion process visualization device
Method, comprising the following steps:
Step 1): in rectangular box body, wherein one side installs tempered glass, and graduated scale is arranged in tempered glass outer surface,
Tubing is installed on tempered glass medial surface, anchor pole is extend into tubing, and by anchor pole pressure sensor and foil gauge it is defeated
Outlet is connect with data collection system；
Step 2: one layer of lubricating oil is applied in tempered glass inner surface, to reduce large dosage expanding cement in expansion process
Frictional resistance, soil is then filled into cuboid box body or is put into the complete rock sample of well cutting, bearing plate is then placed on soil
Earth or rock sample surface, applying different pressure by jack pair bearing plate makes soil or rock sample reach different compactness and not
Same crustal stress records the Pressure maximum value of application；
Step 3): different content expansion cement slurry is prepared according to test demand, is poured into tubing, with common at the top of grouting
Cement slurry sealing, extracts tubing out after the completion；
Step 4): it is contacted by the vertical and lateral soil of visual tempered glass observation or rock sample with expansion cement slurry
Initial position, and read by graduated scale, data are recorded, as the primary data before soil or rock sample expansion；By high-definition camera
Machine face tempered glass visible surface in video input computer, will observe and record at regular intervals vertical and horizontal after video recording
To the position of soil or rock sample, i.e. soil or rock sample expansion strain, difference is swollen under the conditions of being then plotted in different soils compactness
The cement slurry soil swelling of swollen agent content strains time history plot, and differently different swelling agents under stress condition
The cement slurry rock mass expansion strain time history plot of content；
Step 5): acquiring pressure data by data collection system, after the expansion cement slurry of acquisition perfusion at regular intervals
Pressure data, i.e., expansion compression, draw out the cement slurry compression time history plot of different bulking agent levels；
Step 6): after maintenance more days, pull-out test is carried out to anchor pole, and pass through the destruction of camera record anchoring body and hair
The case where raw displacement, and test data is measured by foil gauge and pressure sensor, all data are depicted as chart, are resisted
The rule that pull out force changes with bulking agent levels.
Beneficial effects of the present invention:
1, apparatus of the present invention control is good, analog difference occurrence condition, to carry out the ground under different occurrence conditions
Anchor pull-out test；It is available under the conditions of different soils compactness or differently under stress condition different bulking agent levels anchor
Gu system changes over time under the conditions of rule and different soils compactness or differently three main bodys (anchor pole, anchor under stress condition
Solid, soil mass or rock mass) two interfaces (interface between three main bodys) failure mode and Evolution, withdrawal resistance is finally obtained with swollen
The rule of swollen agent content variation.
2, the device can realize creep visualization by lateral, vertical graduated scale and phantom high-speed camera, can
Reflect the variation in true Rock And Soil environment under the effect of large dosage expansion cement slurry；
3, spiral CT machine sweep test, three main bodys in quantitative study drawing process can be used after changing nonmetallic materials into anchor pole
The destructive process at two interfaces；
4, under the conditions of various soil mass being studied, differently under stress condition, anti-pulling of anchor bar with bulking agent levels variation
Rule, the interface normal stress of anchoring body, shear stress, axle power the regularity of distribution；
5, the device can be recycled, and structure is simple, and material is easy to get, easy to operate, substantially save experimentation cost and period, ring
Border remarkable benefit.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of Rock And Soil large dosage expansion cement slurry expansion process visualization device；
Fig. 2 is the structural schematic diagram of anchor pole in Fig. 1；
Fig. 3 is another viewing angle constructions schematic diagram of Fig. 2；
In figure, rectangular box body 1, tempered glass 2, graduated scale 3, vertical graduated scale 3.1, lateral graduated scale 3.2, tubing 4,
Anchor pole 5, cylindrical bar 5.1, semi-cylindrical bar 5.2, trough 5.3, supporting frame 6, screw thread steel column 6.1, nut 6.2, mounting plate
7, steel column 7.1, bearing plate 8 are limited.
Specific embodiment
The present invention is described in further detail in the following with reference to the drawings and specific embodiments.
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, 1 open-top of rectangular box body, bottom closing；
Wherein one side is open and equipped with tempered glass 2 to the rectangular box body 1, and 2 outer surface of tempered glass is set
There is graduated scale 3,2 medial surface of tempered glass is equipped with the tubing 4 for adding expansion cement slurry, is equipped with anchor in the tubing 4
Bar 5, the anchor pole 5 are equipped with pressure sensor and foil gauge, and the pressure sensor and foil gauge output end and data acquire
System connection；
It is connect by supporting frame 6 with mounting plate 7 at the top of the rectangular box body 1,7 bottom of mounting plate and jack
Fixing end connects, and the bearing plate 8 to match with 1 top opening of rectangular box body is equipped with inside support frame as described above body 6, jack is stretched
It is close to 8 upper surface of bearing plate in contracting end.
Preferably, the tubing 4 be semi-circular shape steel-tube construction, the side that the bearing plate 8 is contacted with tubing 4 equipped with
The semi-circular recesses that 4 shape of tubing matches.This design is so that bearing plate 8 will not influence tubing 4 when being pressurized.
Preferably, as shown in Figures 2 and 3, the anchor pole 5 is made 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 2 top of tempered glass, the rectangular surfaces of the semi-cylindrical bar 5.2 are close to 2 medial surface of tempered glass.There are two former for this design
Cause, first is that the rectangular surfaces of semi-cylindrical bar 5.2 can be close to 2 medial surface of tempered glass, the expansion cement slurry of perfusion will not be by anchor
Bar 5 is whole all to be surrounded, and the rectangular surfaces for leaving semi-cylindrical bar 5.2 can be used as reference position, observe and measure anchoring body to facilitate
And the displacement that two sides soil is occurred centered on anchor pole 5 to two sides；Second is that pressure sensor and foil gauge are mounted on semi-cylindrical bar
After 5.2 exterior arc surface, pressure sensor can accurately test the power that expansion squeezes, and foil gauge accurately tests anchor pole 5 and exists
In drawing process and the strain deformation of extrusion process.
Preferably, the rectangular box body 1 is welded for steel plate materials, and support frame as described above body 6 is rectangular including being welded in
Four screw thread steel columns 6.1 of 1 top corner location of body cabinet pass through nut 6.2 and mounting plate 7 at the top of the screw thread steel column 6.1
Connection.
Preferably, 7 bottom of mounting plate is also vertically equipped with four for limiting the limit that jack is displaced sideways
Position steel column 7.1.
Preferably, the tempered glass 2 is rectangle, anchor pole 5 be close to the inside of tempered glass 2 and with its vertical centerline weight
It closes.
It is further preferable that graduated scale 3 includes vertical graduated scale 3.1 and lateral graduated scale 3.2, wherein vertical graduated scale 3.1
It is overlapped with 2 outside upright center line of tempered glass, lateral 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 rulers.
In addition, the present invention also provides the uses of the Rock And Soil large dosage expansion cement slurry expansion process visualization device
Method, comprising the following steps:
Step 1): in rectangular box body 1, wherein one side installs tempered glass 2, and scale is arranged in 2 outer surface of tempered glass
Tubing 4 is installed on 2 medial surface of tempered glass by ruler 3, and anchor pole 5 is extend into tubing 4, and by anchor pole 5 pressure sensor and
Foil gauge output end is connect with data collection system；
Step 2: one layer of lubricating oil is applied in 2 inner surface of tempered glass, to reduce large dosage expanding cement in expansion process
Frictional resistance, soil is then filled into rectangular box body 1 or is put into the complete rock sample of well cutting, is then placed on bearing plate 8
Soil or rock sample surface, applying different pressure by jack pair bearing plate 8 makes soil or rock sample reach different compactness
And different crustal stress, record the Pressure maximum value of application；
Step 3): different content expansion cement slurry is prepared according to test demand, is poured into tubing 4, with general at the top of grouting
The sealing of water flowing mud, extracts tubing 4 out after the completion；
Step 4): vertical and lateral soil or rock sample are observed by visual tempered glass 2 and contacted with expansion cement slurry
Initial position, and read by graduated scale 3, data recorded, as the primary data before soil or rock sample expansion；High definition is taken the photograph
2 visible surface of camera face tempered glass, in video input computer, will be observed and recorded at regular intervals after video recording it is vertical and
The position of lateral soil or rock sample, i.e. soil or rock sample expansion strain are then plotted in difference under the conditions of different soils compactness
The cement slurry soil swelling of bulking agent levels strains time history plot, and differently different expansions under stress condition
The cement slurry rock mass expansion strain time history plot of agent content；
Step 5): acquiring pressure data by data collection system, after the expansion cement slurry of acquisition perfusion at regular intervals
Pressure data, i.e., expansion compression, draw out the cement slurry compression time history plot of different bulking agent levels；
Step 6): after maintenance more days, carrying out pull-out test to anchor pole 5, and by the destruction of camera record anchoring body and
All data are depicted as chart by the case where being subjected to displacement, and measure test data by foil gauge and pressure sensor, can be with
It obtains under the conditions of different soils compactness or differently the anchor system of different bulking agent levels becomes at any time under stress condition
Under the conditions of law 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, it finally obtains withdrawal resistance and changes with bulking agent levels
Rule.
Respectively using the implementation process of soil and rock sample as embodiment 1 and embodiment 2.
Embodiment 1
Step 1): in rectangular box body 1, wherein one side installs tempered glass 2, and scale is arranged in 2 outer surface of tempered glass
Tubing 4 is installed on 2 medial surface of tempered glass by ruler 3, and anchor pole 5 is extend into tubing 4, and by anchor pole 5 pressure sensor and
Foil gauge output end is connect with data collection system；The present embodiment graduated scale 3 includes vertical graduated scale 3.1 and lateral graduated scale
3.2, wherein vertical graduated scale 3.1 is overlapped with 2 outside upright center line of tempered glass, lateral graduated scale 3.2 is three horizontally disposed
And it is orthogonal with vertical graduated scale 3.1；Tubing 4 is semi-circular shape steel-tube construction, and anchor pole 5 is by cylindrical bar 5.1 and semicolumn
Shape bar 5.2 forms, and the exterior arc surface of semi-cylindrical bar 5.2 equidistantly offers the trough of installation pressure sensor and foil gauge
5.3, cylindrical bar 5.1 is located at 2 top of tempered glass, and the rectangular surfaces of the semi-cylindrical bar 5.2 are close to 2 inside of tempered glass
Face；
Step 2: one layer of lubricating oil is applied in 2 inner surface of tempered glass, to reduce large dosage expanding cement in expansion process
Frictional resistance, soil is then filled into rectangular box body 1, bearing plate 8 is then placed on soil surface, is held by jack pair
Pressing plate 8, which applies different pressure, makes soil reach different compactness and different crustal stress, records the Pressure maximum value of application, this
The pressure of embodiment application 30KN；
Step 3): different content expansion cement slurry is prepared according to test demand, is poured into tubing 4, with general at the top of grouting
The sealing of water flowing mud, extracts tubing 4 out after the completion；In the present embodiment, when preparing different content expansion cement slurry, electronic scale is weighed
The cement that 3 deck labels are 42.5, weight are respectively 1700 grams, 1500 grams, 1300 grams, weigh 300 grams, 500 grams, 700 grams respectively
Swelling agent；It weighs three groups of warm water (50 degrees centigrade), every group 600 grams；Successively cement, swelling agent and warm water are mixed, configuration
The expansion cement slurry for being 15%, 25%, 35% at bulking agent levels.
Step 4): by visual tempered glass 2 observe vertical and lateral soil contacted with expansion cement slurry it is initial
Position, and read by graduated scale 3, data are recorded, as the primary data before soil swelling；By high-definition camera face tempering
2 visible surface of glass in video input computer, will observe and record at regular intervals vertical and lateral soil or rock after video recording
The strain of the position of sample, i.e. soil swelling is then plotted in the cement slurry 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 perfused, every
The expansion status and record of 10 minutes observation expansion cement slurries every 1 hour observation data and record between 1 to 12 hours,
Between 12 to 48 hours, its data was observed every 6 hours, in the latter week, observation daily is primary and records data, and record is perpendicular
To the position with lateral soil, i.e. soil swelling strains, and then draws the cement slurry soil swelling strain of different bulking agent levels
Time history plot；
Step 5): acquiring pressure data by data collection system, after the expansion cement slurry of acquisition perfusion at regular intervals
Pressure data, i.e., expansion compression, draw out the cement slurry compression time history plot of different bulking agent levels；
In the present embodiment, needs according to the pressure data of acquisition to carry out that turgor pressure stress data is calculated, draw different swelling agent matter
The expansion cement slurry compression of amount content changes over time image；
Step 6): after maintenance 28 days, carrying out pull-out test to anchor pole 5, and by the destruction of camera record anchoring body and
The case where being subjected to displacement, and test data is measured by foil gauge and pressure sensor, it can be observed and be compared by photologging
Certain point is from the situation of change for starting to pull to end.
Embodiment 2
Step 1): in rectangular box body 1, wherein one side installs tempered glass 2, and scale is arranged in 2 outer surface of tempered glass
Tubing 4 is installed on 2 medial surface of tempered glass by ruler 3, and anchor pole 5 is extend into tubing 4, and by anchor pole 5 pressure sensor and
Foil gauge output end is connect with data collection system；The present embodiment graduated scale 3 includes vertical graduated scale 3.1 and lateral graduated scale
3.2, wherein vertical graduated scale 3.1 is overlapped with 2 outside upright center line of tempered glass, lateral graduated scale 3.2 is three horizontally disposed
And it is orthogonal with vertical graduated scale 3.1；Tubing 4 is semi-circular shape steel-tube construction, and anchor pole 5 is by cylindrical bar 5.1 and semicolumn
Shape bar 5.2 forms, and the exterior arc surface of semi-cylindrical bar 5.2 equidistantly offers the trough of installation pressure sensor and foil gauge
5.3, cylindrical bar 5.1 is located at 2 top of tempered glass, and the rectangular surfaces of the semi-cylindrical bar 5.2 are close to 2 inside of tempered glass
Face；
Step 2: one layer of lubricating oil is applied in 2 inner surface of tempered glass, to reduce large dosage expanding cement in expansion process
Frictional 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, lead to
Crossing jack pair bearing plate 8 and applying different pressure makes rock sample reach different compactness and different crustal stress, records application
Pressure maximum value；The present embodiment applies the pressure of 30KN, 40KN, 50KN to three devices respectively；
Step 3): different content expansion cement slurry is prepared according to test demand, is poured into tubing 4, with general at the top of grouting
The sealing of water flowing mud, extracts tubing 4 out after the completion；In the present embodiment, electronic scale weighs the cement 1700 that 3 deck labels are 42.5
Gram, 300 grams of swelling agents are weighed, 600 grams of warm water (50 degrees centigrade) is weighed, successively cement, swelling agent and warm water are mixed, matched
It is set to the expansion cement slurry that bulking agent levels are 15%, expansion cement slurry is poured in the tubing 4 into different visual devices respectively
Note；
Step 4): vertical and lateral soil or rock sample are observed by visual tempered glass 2 and contacted with expansion cement slurry
Initial position, and read by graduated scale 3, data recorded, as the primary data before soil or rock sample expansion；High definition is taken the photograph
2 visible surface of camera face tempered glass, in video input computer, will be observed and recorded at regular intervals after video recording it is vertical and
The position of lateral soil or rock sample, i.e. soil or rock sample expansion strain are then plotted in difference under the conditions of different soils compactness
The cement slurry soil swelling of bulking agent levels strains time history plot, and differently different expansions under stress condition
The cement slurry rock mass expansion strain time history plot of agent content；Specific implementation process is as follows: in perfusion expanding cement
1 hour after slurry, every the expansion status of 10 minutes observation expansion cement slurries, and record, between 1 to 12 hours, every 1 hour
Observation data simultaneously record, and between 12 to 48 hours, its data are observed every 6 hours, in the latter week, observation is primary simultaneously daily
Data are recorded, record is vertically and the cement of different crustal stress situations is then drawn in the position of lateral rock sample, i.e. rock sample expansion strain
Magmatic rock sample expansion strain time history plot；
Step 5): acquiring pressure data by data collection system, after the expansion cement slurry of acquisition perfusion at regular intervals
Pressure data, i.e., expansion compression, be plotted in expansion cement slurry compression under different soil conditions and change over time image；
Step 6): after maintenance 28 days, carrying out pull-out test to anchor pole 5, and by the destruction of camera record anchoring body and
The case where being subjected to displacement, and test data is measured by foil gauge and pressure sensor, it can be observed and be compared by photologging
Certain 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 limitation of the invention, this Shen
Please in embodiment and embodiment in feature in the absence of conflict, can mutual any combination.Protection model of the invention
The technical solution that should be recorded with claim is enclosed, the equivalent replacement side of technical characteristic in the technical solution recorded including claim
Case is protection scope.Equivalent replacement i.e. within this range is improved, also within protection scope of the present invention.
Claims (7)
1. a kind of Rock And Soil large dosage expansion cement slurry expansion process visualization device, including the length for containing soil or rock sample
Cube cabinet (1), rectangular box body (1) open-top, bottom closing, it is characterised in that:
Wherein one side is open and equipped with tempered glass (2) rectangular box body (1), tempered glass (2) outer surface
Equipped with graduated scale (3), tempered glass (2) medial surface is equipped with the tubing (4) for adding expansion cement slurry, the tubing
(4) anchor pole (5) are equipped in, the anchor pole (5) is equipped with pressure sensor and foil gauge, and the pressure sensor and foil gauge are defeated
Outlet is connect with data collection system；
It is connect by supporting frame (6) with mounting plate (7) at the top of the rectangular box body (1), mounting plate (7) bottom and thousand
The fixing end connection of jin top, support frame as described above body (6) is internal to be equipped with the bearing plate to match with rectangular box body (1) top opening
(8), jack telescopic end is close to bearing plate (8) upper surface；
The tubing (4) is semi-circular shape steel-tube construction, and the side that the bearing plate (8) contacts with tubing (4) is equipped with and tubing
(4) semi-circular recesses that shape matches.
2. 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) is made of cylindrical bar (5.1) and semi-cylindrical bar (5.2), the exterior arc surface of the semi-cylindrical bar (5.2)
The trough (5.3) of installation pressure sensor and foil gauge is offered, the cylindrical bar (5.1) is located at the top of tempered glass (2),
The rectangular surfaces of the semi-cylindrical bar (5.2) are close to tempered glass (2) medial surface.
3. 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) is welded for steel plate materials, and support frame as described above body (6) includes being welded in rectangular box body (1) top
Four screw thread steel columns (6.1) of portion's corner location, screw thread steel column (6.1) top are connected by nut (6.2) and mounting plate (7)
It connects.
4. Rock And Soil large dosage expansion cement slurry expansion process visualization device according to claim 1, it is characterised in that:
Mounting plate (7) bottom is also vertically equipped with four for limiting the limit steel column (7.1) that jack is displaced sideways.
5. Rock And Soil large dosage expansion cement slurry expansion process visualization device according to claim 1, it is characterised in that:
The tempered glass (2) is rectangle, and anchor pole (5) is close to be overlapped on the inside of tempered glass (2) and with its vertical centerline.
6. Rock And Soil large dosage expansion cement slurry expansion process visualization device according to claim 5, it is characterised in that:
Graduated scale (3) includes vertical graduated scale (3.1) and lateral graduated scale (3.2), wherein vertical graduated scale (3.1) and tempered glass
(2) outside upright center line is overlapped, and lateral graduated scale (3.2) is horizontally disposed with multiple and orthogonal with vertical graduated scale (3.1).
7. a kind of application method of Rock And Soil large dosage expansion cement slurry expansion process visualization device described in claim 1,
It is characterized by comprising following steps:
Step 1): in rectangular box body (1) wherein one side installation tempered glass (2), it is arranged in tempered glass (2) outer surface and carves
It spends ruler (3), tubing (4) is installed on tempered glass (2) medial surface, anchor pole (5) is extend into tubing (4), and will be on anchor pole (5)
Pressure sensor and foil gauge output end connect with data collection system；
Step 2: one layer of lubricating oil is applied in tempered glass (2) inner surface, to reduce large dosage expanding cement in expansion process
Then frictional resistance fills soil into rectangular box body (1) or is put into the complete rock sample of well cutting, then puts bearing plate (8)
On soil or rock sample surface, applying different pressure by jack pair bearing plate (8) makes soil or rock sample reach 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 test demand, is poured into tubing (4), with common at the top of grouting
Cement slurry sealing, extracts tubing (4) out after the completion；
Step 4): it is contacted by the vertical and lateral soil of visual tempered glass (2) observation or rock sample with expansion cement slurry
Initial position, and read by graduated scale (3), data are recorded, as the primary data before soil or rock sample expansion；High definition is taken the photograph
Camera face tempered glass (2) visible surface in video input computer, will observe and record at regular intervals vertical after video recording
With the position of lateral 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 slurry soil swelling with bulking agent levels strains time history plot, and differently different swollen under stress condition
The cement slurry rock mass expansion strain time history plot of swollen agent content；
Step 5): acquiring pressure data by data collection system, the pressure after the expansion cement slurry of acquisition perfusion at regular intervals
Force data, i.e. expansion compression, draw out the cement slurry compression time history plot of different bulking agent levels；
Step 6): after maintenance more days, pull-out test is carried out to anchor pole (5), and pass through the destruction of camera record anchoring body and hair
The case where raw displacement, and test data is measured by foil gauge and pressure sensor, all data are depicted as chart, are resisted
The rule that pull out force changes with bulking agent levels.
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| CN108169260B (en) * | 2017-12-28 | 2020-06-30 | 三峡大学 | Method for analyzing expansion mechanism of anchoring body with different content of expanding agent by CT scanning |
| CN109030210B (en) * | 2018-08-02 | 2024-08-06 | 三峡大学 | Soil creep simulation device |
| CN109211676A (en) * | 2018-09-21 | 2019-01-15 | 三峡大学 | Measure the device and analogy method of Rock And Soil stress repletion transfer law |
| 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 |
| CN109211949B (en) * | 2018-09-30 | 2021-06-29 | 三峡大学 | Test method for measuring compactness of anchoring body and surrounding soil layer of expansive cement paste based on CT scanning |
| CN109580346B (en) * | 2018-11-21 | 2021-08-10 | 三峡大学 | Device and method for measuring compressive resistance of expanded cement slurry by using magnetic force |
| CN116086961A (en) * | 2020-06-23 | 2023-05-09 | 三峡大学 | Experimental method for detecting creep stress of in-situ rock-soil body |
| CN111650365B (en) * | 2020-07-14 | 2021-05-07 | 清华大学 | Intelligent grouting multifunctional test device |
| CN113899889B (en) * | 2021-12-10 | 2022-04-15 | 成都理工大学 | Device and method for monitoring cement paste gel strength of visual retaining wall |
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| DE4421959A1 (en) * | 1994-06-23 | 1996-01-04 | Fischer Artur Werke Gmbh | Preload control element for screw anchors |
| US6817238B2 (en) * | 2001-06-22 | 2004-11-16 | Bj Services Company | Cement expansion/contraction test apparatus |
| CN103398901B (en) * | 2013-08-08 | 2015-04-29 | 中国科学院武汉岩土力学研究所 | Indoor pull-out test apparatus for anchor rod |
| CN103558088B (en) * | 2013-11-05 | 2016-02-17 | 兰州大学 | Earthen ruins anchoring shop experiment system |
| CN104155176A (en) * | 2014-08-28 | 2014-11-19 | 中国电建集团中南勘测设计研究院有限公司 | Simulation test device and method for working state of anchor rod and anchor rod stress meter |
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