CN110082178A - A kind of earthen foundation environment in-situ condition sample curing means and method - Google Patents
A kind of earthen foundation environment in-situ condition sample curing means and method Download PDFInfo
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- CN110082178A CN110082178A CN201910357342.1A CN201910357342A CN110082178A CN 110082178 A CN110082178 A CN 110082178A CN 201910357342 A CN201910357342 A CN 201910357342A CN 110082178 A CN110082178 A CN 110082178A
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- water
- soil body
- guard
- upper spacer
- curing means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0244—Tests performed "in situ" or after "in situ" use
- G01N2203/0246—Special simulation of "in situ" conditions, scale models or dummies
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of earthen foundation environment in-situ condition sample curing means and method, the present invention wraps up sample by going along with sb. to guard him the soil body, is more nearly actual environment.Upper and lower partition is provided with preformed hole, by adding water that moisture infiltrating from top to bottom, simulated rainfall environment may be implemented at upper spacer；By the way that the Infiltration process of capillary pressure induction can be simulated into water-storing bottle plus moisture infiltrating from bottom to top may be implemented in water.Lower clapboard edge is provided with the snorkel with external pressure connection, can change the boundary condition for going along with sb. to guard him soil body lower part to avoid air bag is generated when being filled the water by water-storing bottle.
Description
Technical field
The invention belongs to experimental rig fields, and in particular to a kind of earthen foundation environment in-situ condition sample curing means and
Method.
Background technique
Laboratory soil test is always the core research means of ground foundation engineering related discipline, is set by testing accordingly
It is standby can be with response pattern of the ground foundation simulation soil body under different stress paths, to for engineering design and construct and provide reference.Cause
This, laboratory soil test has become the indispensable means that currently associated field scientific research personnel work is carried out.
The objective of all kinds of geotechnical testament Instrument Designs such as dynamic triaxial apparatus, hollow cylinder torsional shear instrument is to try to accurately weigh
True stress or strain regime, focus of the existing foundation soil body in the case where bearing external load effect are samples in bearing load process
In mechanical response, have ignored the influence of intermittent phase that may be present to foundation soil body physical mechanics state under truth.Example
Such as, when studying foundation soil body dynamic response rule under long-term High-speed Train Loads under regular situation, often through to individual sample
The continuous CYCLIC LOADING of certain number is carried out to demarcate its dynamic response relevant parameter.But actual conditions are that train is not one
Direct line, there may be the intermittent phases indefinite when holding between adjacent train passage twice.Meanwhile precipitation, underground in the intermittent phase
The factors such as SEA LEVEL VARIATION, temperature change may have an impact the microstructure of foundation soil body.Practical foundation soil body is to be in
Under the joint effect that external loads effect is acted on external environment, but existing test condition is often difficult to describe above-mentioned two
Influence of the synergistic effect of aspect factor to the soil body.
Summary of the invention
The purpose of the present invention is to overcome the above shortcomings and to provide a kind of earthen foundation environment in-situ condition sample curing means
And method, it can seep water simultaneously from the upper and lower part of the soil body, it is good and reusable to reappear effect.
In order to achieve the above object, a kind of earthen foundation environment in-situ condition sample curing means, including fog room, maintenance
Indoor bottom is provided with several cushion blocks, is provided with lower clapboard on cushion block, is provided with upper spacer above lower clapboard, lower clapboard and upper
Partition room, which is provided with, goes along with sb. to guard him the soil body, goes along with sb. to guard him soil body package sample, offers several preformed holes, fog room on lower clapboard and upper spacer
Upper spacer and the external world are stretched out even in the snorkel being inside provided in insertion cushion block and the cavity of fog room bottom, the top of snorkel
It is logical, it is provided with several clump weights on upper spacer, is offered on fog room side wall in the cavity to cushion block and fog room bottom
The intake-outlet of water filling.
Fog room is placed in insulation barrel, and water is filled in insulation barrel, and the liquid level of water is higher than upper spacer, lower than maintenance ceiling
Face, intake-outlet connect water-storing bottle, water-storing bottle bottleneck and air communication.
Electrical bar and temperature sensor are provided in insulation barrel.
Overflow port is provided on insulation barrel, overflow port is lower than at the top of fog room.
Water tank is provided with by insulation barrel, the water in water tank is pumped into insulation barrel by water pump, the end connection water that draws water of water pump
Pipe, water pipe are inserted into the water in water tank, and the water outlet of water pump is placed in above insulation barrel.
It goes along with sb. to guard him and is provided with moisture transducer in the soil body.
It goes along with sb. to guard him and is provided with filter paper between the soil body and lower clapboard and upper spacer.
A kind of building method of earthen foundation environment in-situ condition sample curing means, comprising the following steps:
Step 1 fills on lower clapboard and goes along with sb. to guard him the soil body, go along with sb. to guard him soil body placement in layers and with tamping；It is buried when filling to absolute altitude
If sample continues to fill up and goes along with sb. to guard him the soil body, until completion is gone along with sb. to guard him the soil body and filled, soil body leveling will be gone along with sb. to guard him and cover upper spacer later；
Step 2 uniformly places the clump weight of weight corresponding with default confining pressure on upper spacer；
Step 3 uniformly adds water, Zhi Houkai in the preformed hole of upper spacer or lower clapboard according to infiltration condition into fog room
Begin to conserve；
Step 4 after maintenance, takes out sample from going along with sb. to guard him in the soil body, save after removing surface surface dust.
When needing to be higher than room temperature environment, fog room is placed in insulation barrel, and places electrical bar and temperature biography in water
Sensor；
Electrical bar is opened, when water temperature reaches required temperature, electrical bar is closed, carries out step 3.
When needing varying temperature environment, fog room is placed in insulation barrel, and places electrical bar and temperature sensor in water,
Water tank is placed by insulation barrel；
When needing to heat up, electrical bar is opened, when water temperature reaches required temperature, closes electrical bar；When needing to cool down, open
Water in water tank is pumped into insulation barrel by water pump, when water temperature reaches required temperature, is switched off the pump.
Compared with prior art, the present invention wraps up sample by going along with sb. to guard him the soil body, is more nearly actual environment.Upper and lower partition
It is provided with preformed hole, by adding water that moisture infiltrating from top to bottom, simulated rainfall environment may be implemented at upper spacer；Pass through
Into water-storing bottle plus moisture infiltrating from bottom to top may be implemented in water, can simulate the Infiltration process of capillary pressure induction.
Lower clapboard edge is provided with the snorkel with external pressure connection, can change to avoid air bag is generated when being filled the water by water-storing bottle
Go along with sb. to guard him the boundary condition of soil body lower part.
Further, the present invention places temperature sensor in the water of insulation barrel, and the temperature information in maintenance processes can be with
Real-time monitoring.
Further, the present invention is going along with sb. to guard him the embedded moisture transducer of inside soil body, and the moisture content information in maintenance processes can
With real-time monitoring.
Further, the accessories such as insulation barrel of the invention and water tank are separation, can be temporary when curing condition is room temperature
When remove external insulation system, save laboratory space, prevent the waste of public resource.
Method of the invention uniformly adds water by the preformed hole in upper spacer or lower clapboard into fog room, simulates on the soil body
The case where lower end is seeped water can simulate the Infiltration process of capillary pressure induction by placing clump weight on upper spacer；
This method is easy to operate, low in cost, can effectively restore the in situ environment of earthen foundation, and the crucial ginseng in maintenance processes
Record, controllability are high in real time for number.
Detailed description of the invention
Fig. 1 is diagrammatic cross-section of the invention；
Fig. 2 is schematic top plan view of the invention；
Fig. 3 is lower clapboard structural schematic diagram of the invention；
Fig. 4 is upper spacer and counterweight block structure schematic diagram of the invention；
In figure, 1. samples, 2. go along with sb. to guard him the soil body, 3. fog rooms, 4. lower clapboards, 5. upper spacers, 6. filter paper, 7. cushion blocks, 8. into
Water outlet, 9. overflow ports, 10. water-storing bottles, 11. snorkels, 12. moisture transducers, 13. temperature sensors, 14. clump weights, 15.
Electrical bar, 16. insulation barrels, 17. water pumps, 18. water pipes, 19. water tanks, 20. water, 21. preformed holes.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
Referring to Fig. 1, Fig. 3 and Fig. 4, a kind of earthen foundation environment in-situ condition sample curing means, including fog room 3, it supports
Bottom in shield room 3 is provided with several cushion blocks 7, and lower clapboard 4 is provided on cushion block 7, upper spacer 5 is provided with above lower clapboard 4, under
It is provided between partition 4 and upper spacer 5 and goes along with sb. to guard him the soil body 2, gone along with sb. to guard him and be provided with filter paper 6 between the soil body 2 and lower clapboard 4 and upper spacer 5, enclose
It protects the soil body 2 and wraps up sample 1, go along with sb. to guard him and be provided with moisture transducer 12 in the soil body 2, if offering intervention on lower clapboard 4 and upper spacer 5
Box out 21, the snorkel 11 being provided in fog room 3 in insertion cushion block 7 and the cavity of 3 bottom of fog room, the top of snorkel 11
It stretches out upper spacer 5 to be in communication with the outside, several clump weights 14 is provided on upper spacer 5, offered on 3 side wall of fog room for pad
The intake-outlet 8 filled the water in block 7 and the cavity of 3 bottom of fog room.
Referring to Fig. 1 and Fig. 2, fog room 3 is placed in insulation barrel 16, and water 20 is filled in insulation barrel 16, and the liquid level of water 20 is high
In upper spacer 5, it is lower than 3 top surface of fog room, intake-outlet 8 connects water-storing bottle 10,10 bottleneck of water-storing bottle and air communication.Insulation barrel
Electrical bar 15 and temperature sensor 13 are provided in 16.Overflow port 9 is provided on insulation barrel 16, overflow port 9 is pushed up lower than fog room 3
Portion.Water tank 19 is provided with by insulation barrel 16, the water in water tank 19 is pumped into insulation barrel 16 by water pump 17, the end of drawing water of water pump 17
Water pipe 18 is connected, water pipe 18 is inserted into the water in water tank 19, and the water outlet of water pump 17 is placed in 16 top of insulation barrel.
Moisture transducer 12 and temperature sensor 13 connect computer, and electrical bar 15 and water pump 17 are connected after being powered and calculated
Machine.Fog room 3 is bonded by organic glass and is completed, and insulation barrel 16 is converted using tub, and overflow port 9 is stretched by drilling and fixation
The connection casing of cylinder is realized out.Upper spacer 5 and lower clapboard 4 are process by 5mm steel plate, and snorkel 11 is steel pipe and is welded on
On lower clapboard 4.Cushion block 7 is the lesser several steel cylinders of diameter.Stack lead rounding cylinder clump weight 14 in 5 top of upper spacer.
A kind of building method of earthen foundation environment in-situ condition sample curing means, comprising the following steps:
Step 1 is laid with filter paper 6 and is filled on lower clapboard 4 and go along with sb. to guard him the soil body 2, goes along with sb. to guard him 2 placement in layers of the soil body and use rubber
Hammer gently consolidates；Embedded sample 1, continues to fill up and goes along with sb. to guard him the soil body 2 when filling to absolute altitude, fills, will enclose until completing to go along with sb. to guard him the soil body 2
The shield leveling of the soil body 2 covers upper spacer 5 after being laid with filter paper 6；
Step 2 uniformly places the clump weight 14 of weight corresponding with default confining pressure on upper spacer 5；
Step 3 uniformly adds water in the preformed hole 21 of upper spacer 5 or lower clapboard 4 according to infiltration condition into fog room 3, it
After start to conserve；
Step 4 after maintenance, is taken out sample 1 from going along with sb. to guard him, is saved after removing surface surface dust in the soil body 2.
When needing to be higher than room temperature environment, fog room 3 is placed in insulation barrel 16, and places electrical bar 15 and temperature in water
Spend sensor 13；
Electrical bar 15 is opened, when water temperature reaches required temperature, electrical bar 13 is closed, carries out step 3.
When needing varying temperature environment, fog room 3 is placed in insulation barrel 16, and places electrical bar 15 and temperature biography in water
Sensor 13 places water tank 19 by insulation barrel 16；
When needing to heat up, electrical bar 15 is opened, when water temperature reaches required temperature, closes electrical bar 13；When needing to cool down,
Water pump 17 is opened, the water in water tank 19 is pumped into insulation barrel 16, when water temperature reaches required temperature, switches off the pump 17.
Claims (10)
1. a kind of earthen foundation environment in-situ condition sample curing means, which is characterized in that including fog room (3), fog room (3)
Interior bottom is provided with several cushion blocks (7), is provided on cushion block (7) lower clapboard (4), is provided with upper spacer above lower clapboard (4)
(5), it is provided between lower clapboard (4) and upper spacer (5) and goes along with sb. to guard him the soil body (2), go along with sb. to guard him the soil body (2) package sample (1), lower clapboard (4)
With several preformed holes (21) are offered on upper spacer (5), insertion cushion block (7) and fog room (3) bottom are provided in fog room (3)
Cavity in snorkel (11), the top of snorkel (11) stretches out upper spacer (5) and is in communication with the outside, and upper spacer is arranged on (5)
Have several clump weights (14), is offered on fog room (3) side wall for note in the cavity to cushion block (7) and fog room (3) bottom
The intake-outlet (8) of water.
2. a kind of earthen foundation environment in-situ condition sample curing means according to claim 1, which is characterized in that maintenance
Room (3) is placed in insulation barrel (16), is filled with water (20) in insulation barrel (16), and the liquid level of water (20) is higher than upper spacer (5), is lower than
Fog room (3) top surface, intake-outlet (8) connect water-storing bottle (10), water-storing bottle (10) bottleneck and air communication.
3. a kind of earthen foundation environment in-situ condition sample curing means according to claim 2, which is characterized in that heat preservation
Electrical bar (15) and temperature sensor (13) are provided in bucket (16).
4. a kind of earthen foundation environment in-situ condition sample curing means according to claim 2, which is characterized in that heat preservation
It is provided with overflow port (9) on bucket (16), overflow port (9) is lower than at the top of fog room (3).
5. a kind of earthen foundation environment in-situ condition sample curing means according to claim 2, which is characterized in that heat preservation
It is provided with water tank (19) by bucket (16), the water in water tank (19) is pumped into insulation barrel (16) by water pump (17), water pump (17)
It draws water and holds connection water pipe (18), water pipe (18) is inserted into the water in water tank (19), and the water outlet of water pump (17) is placed in insulation barrel
(16) top.
6. a kind of earthen foundation environment in-situ condition sample curing means according to claim 1, which is characterized in that go along with sb. to guard him
Moisture transducer (12) are provided in the soil body (2).
7. a kind of earthen foundation environment in-situ condition sample curing means according to claim 1, which is characterized in that go along with sb. to guard him
Filter paper (6) are provided between the soil body (2) and lower clapboard (4) and upper spacer (5).
8. a kind of building method of earthen foundation environment in-situ condition sample curing means described in claim 1, feature exist
In, comprising the following steps:
Step 1 fills on lower clapboard (4) and goes along with sb. to guard him the soil body (2), go along with sb. to guard him the soil body (2) placement in layers and with tamping；It fills to mark
Sample (1) is buried when high, continues to fill up and goes along with sb. to guard him the soil body (2), until completion is gone along with sb. to guard him the soil body (2) and filled, the soil body (2) leveling will be gone along with sb. to guard him
Upper spacer (5) are covered later；
Step 2 uniformly places the clump weight (14) of weight corresponding with default confining pressure on upper spacer (5)；
Step 3 uniformly adds in fog room (3) according to infiltration condition in the preformed hole (21) of upper spacer (5) or lower clapboard (4)
Water starts to conserve later；
Step 4 after maintenance, is taken out sample (1) from going along with sb. to guard him in the soil body (2), is saved after removing surface surface dust.
9. a kind of building method of earthen foundation environment in-situ condition sample curing means according to claim 8, special
Sign is, when needing to be higher than room temperature environment, fog room (3) is placed in insulation barrel (16), and place electrical bar in water
(15) and temperature sensor (13)；
It opens electrical bar (15), when water temperature reaches required temperature, closes electrical bar (13), carry out step 3.
10. a kind of building method of earthen foundation environment in-situ condition sample curing means according to claim 8, special
Sign is, when needing varying temperature environment, fog room (3) is placed in insulation barrel (16), and place in water electrical bar (15) and
Temperature sensor (13) places water tank (19) by insulation barrel (16)；
It when needing to heat up, opens electrical bar (15), when water temperature reaches required temperature, closes electrical bar (13)；When needing to cool down,
It opens water pump (17), the water in water tank (19) is pumped into insulation barrel (16), when water temperature reaches required temperature, is switched off the pump
(17)。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910357342.1A CN110082178A (en) | 2019-04-29 | 2019-04-29 | A kind of earthen foundation environment in-situ condition sample curing means and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910357342.1A CN110082178A (en) | 2019-04-29 | 2019-04-29 | A kind of earthen foundation environment in-situ condition sample curing means and method |
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| CN110082178A true CN110082178A (en) | 2019-08-02 |
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| CN201910357342.1A Pending CN110082178A (en) | 2019-04-29 | 2019-04-29 | A kind of earthen foundation environment in-situ condition sample curing means and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110823781A (en) * | 2019-11-22 | 2020-02-21 | 山东大学 | Multifunctional roadbed soil moisture migration experiment model box and experiment method |
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| CN103033459A (en) * | 2012-12-24 | 2013-04-10 | 太原理工大学 | Device for testing horizontal permeability of cement-soil deep mixing column indoors and test method |
| CN104749205A (en) * | 2015-04-10 | 2015-07-01 | 长安大学 | Water thermal force comprehensive testing system and method of soil body freezing process |
| CN106596268A (en) * | 2017-01-23 | 2017-04-26 | 长安大学 | Multi-soaking condition simulation test model box and test method thereof |
| CN107167577A (en) * | 2017-05-25 | 2017-09-15 | 宁波大学 | A kind of Temperature control model experimental rig |
| CN108375532A (en) * | 2018-01-08 | 2018-08-07 | 东南大学 | Infiltration experiment device and test method |
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2019
- 2019-04-29 CN CN201910357342.1A patent/CN110082178A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033459A (en) * | 2012-12-24 | 2013-04-10 | 太原理工大学 | Device for testing horizontal permeability of cement-soil deep mixing column indoors and test method |
| CN104749205A (en) * | 2015-04-10 | 2015-07-01 | 长安大学 | Water thermal force comprehensive testing system and method of soil body freezing process |
| CN106596268A (en) * | 2017-01-23 | 2017-04-26 | 长安大学 | Multi-soaking condition simulation test model box and test method thereof |
| CN107167577A (en) * | 2017-05-25 | 2017-09-15 | 宁波大学 | A kind of Temperature control model experimental rig |
| CN108375532A (en) * | 2018-01-08 | 2018-08-07 | 东南大学 | Infiltration experiment device and test method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110823781A (en) * | 2019-11-22 | 2020-02-21 | 山东大学 | Multifunctional roadbed soil moisture migration experiment model box and experiment method |
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Application publication date: 20190802 |