CN110470815A - Water replenishment and the device and method of discharge during monitoring soil body Frozen-thawed cycled - Google Patents

Water replenishment and the device and method of discharge during monitoring soil body Frozen-thawed cycled Download PDF

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Publication number
CN110470815A
CN110470815A CN201910787441.3A CN201910787441A CN110470815A CN 110470815 A CN110470815 A CN 110470815A CN 201910787441 A CN201910787441 A CN 201910787441A CN 110470815 A CN110470815 A CN 110470815A
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China
Prior art keywords
container
frozen
soil body
discharge
thawed cycled
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CN201910787441.3A
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Inventor
张莲海
温智
吴青柏
马巍
杨成松
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Cold and Arid Regions Environmental and Engineering Research Institute of CAS
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Cold and Arid Regions Environmental and Engineering Research Institute of CAS
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/24Earth materials

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
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  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
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  • General Health & Medical Sciences (AREA)
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Abstract

The invention discloses water replenishment and the device and methods of discharge during a kind of monitoring soil body Frozen-thawed cycled.The device includes: the first container, second container, third container, the first Weighing mechanism and the second Weighing mechanism, and second container, third container are respectively disposed on the first Weighing mechanism, on the second Weighing mechanism;Second container is connected to through the first connecting tube with the first container, and third container is connected to through the second connecting tube with second container, is additionally provided with venthole in second connecting tube, and the bottom of the venthole and test soil sample is located at and is same as same level.Experimental rig provided in an embodiment of the present invention, which can meet in test indoors, feeds moisture for the soil sample in frozen-thaw process, the water replenishment amount in soil sample frozen-thaw process can not only be acquired, the discharge rate amount of moisture can also be acquired, has the characteristics that easy to use, real-time and with high accuracy, so that the water translocation process for the soil body in frozen-thaw process provides important evidence.

Description

Water replenishment and the device and method of discharge during monitoring soil body Frozen-thawed cycled
Technical field
Examination needed for a kind of open system soil sample Unidirectional Freezing and melting process that are carried out indoors the present invention relates to one kind Equipment is tested, in particular to water replenishment and the device and method of discharge during a kind of monitoring soil body Frozen-thawed cycled belong to test Equipment technical field.
Background technique
Frost heave and thaw collapse are two most important diseases of cold regions engineering construction, build and its run to cold regions engineering and bring Great harm.Water translocation and segregated ice be cause frost heave and thaw collapse to deform the most fundamental reason, and water replenishment amount with And discharge rate is the important parameter for reflecting water translocation process and mechanical process.
Indoors, general to simulate live frozen-thaw process using the unidirectional freezing-thawing test of open system.It is unidirectional in open system In frozen-thaw process, moisturizing generally is carried out with Liao Te bottles of horse.It is general by manually reading in order to obtain the rate of water make-up of soil sample different moments Several methods records the height of the liquid water surface in horse Liao Te bottles.The method manually read, time-consuming effort, precision be not high.And benefit With Liao Te bottles of rate of water make-up that can only be tested in soil body frozen-thaw process of horse, and displacement cannot be calculated.
Therefore, freezing-thawing test unidirectional for the open system of soil sample, it is to be ensured that the success of test and efficiently complete, at present It is badly in need of a kind of stabilization, reliable, easy to use and benefit drainage arrangement with high accuracy.
Summary of the invention
The main purpose of the present invention is to provide water replenishment and the dresses of discharge during a kind of monitoring soil body Frozen-thawed cycled It sets and method, to overcome deficiency in the prior art.
For realization aforementioned invention purpose, the technical solution adopted by the present invention includes:
The embodiment of the invention provides water replenishment and the device of discharge during a kind of monitoring soil body Frozen-thawed cycled, packets It includes:
The first container is at least used to accommodate test soil sample;
Second container, is at least used to encapsulate liquid water, and the second container is connected to through the first connecting tube with the first container;
The lower section of second container is arranged in along gravity direction for third container, the third container, and the third container is through Two connecting tubes are connected to second container, and venthole, and the venthole and test soil are additionally provided in second connecting tube The bottom of sample, which is located at, is same as same level;
First Weighing mechanism at least is used to measure the quality of second container;
Second Weighing mechanism is at least used to measure the quality of third container;
Wherein, the top of first nozzle is arranged in along gravity direction for second nozzle.
In some more specific embodiments, the second container includes container body and is covered in container The first lid at body first end mouth, the second lid being covered at container body second port.
In some more specific embodiments, it is provided with the first through hole on the container body, described second The connection seal of tube is plugged in first through hole;The second through hole is provided on second lid, described first connects Adapter tube sealing is plugged in second through hole.
In some more specific embodiments, the second container is horse Liao Te bottles.
In some more specific embodiments, be provided with air inlet device in second connecting tube, it is described into Port device is connected to second connecting tube, and the venthole is arranged on the air inlet device.
In some more specific embodiments, the air inlet device is that diameter is greater than the second air inlet pipe caliber Spherical structure.
In some more specific embodiments, first connecting tube is horizontally disposed, second connecting tube and the The part of two containers connection is the U-tube being arranged along gravity direction.
In some more specific embodiments, first Weighing mechanism and the second Weighing mechanism are weighing balance, The second container is placed on the work top of first Weighing mechanism, and the third container is placed on second weighing On the work top of mechanism.
In some more specific embodiments, water replenishment and discharge during the monitoring soil body Frozen-thawed cycled Device further include fixed bracket, first Weighing mechanism, the second Weighing mechanism are mounted on the fixed bracket.
In some more specific embodiments, water replenishment and discharge during the monitoring soil body Frozen-thawed cycled Device further include data recording equipment, the data recording equipment is through data line and first Weighing mechanism, second Weighing mechanism connection.
Further, water replenishment and the device of discharge further include freeze thawing hair during the monitoring soil body Frozen-thawed cycled Generating apparatus is at least used to provide freezing and thaw condition for the test pattern in the first container;For example, the freeze thawing occurs Equipment may include freezing equipment and heating equipment, can use various known equipment realization.
The embodiment of the invention also provides the examinations of water replenishment and discharge during a kind of real-time monitoring soil body Frozen-thawed cycled Proved recipe method comprising:
Water replenishment and the device of discharge during monitoring soil body Frozen-thawed cycled described in providing,
Test pattern is set in the first container, liquid water is encapsulated in the second container, and makes the test Pattern circulating freezing resistance on a preset condition based;
And by the gross mass of measurement second container and third container, and then realize to test soil sample in Frozen-thawed cycled process Middle water replenishment and the quantitative analysis that situation is discharged.
Compared with prior art, the invention has the advantages that
1) water replenishment and the device of discharge during a kind of monitoring soil body Frozen-thawed cycled provided in an embodiment of the present invention, knot Structure is simple, the side of second container is provided with air inlet device, so that the water energy at air inlet device enough contacts atmosphere, therefore Water pressure herein is constant all the time in an atmospheric pressure, so that guarantee test soil sample can be realized without pressure moisturizing, that is, test soil The flowing of moisture is simply due to soil water potential variation in the soil body in sample;
2) experimental rig provided by the invention, which can meet in test indoors, feeds moisture for the soil sample in frozen-thaw process, no The water replenishment amount in soil sample frozen-thaw process can only be acquired, moreover it is possible to acquire the discharge rate of moisture;
3) precision balance in experimental rig provided by the invention cooperates practical with software, can acquire in real time and be packaged with liquid The gross mass of the second container of state water and the third container for containing discharge water, has easy to use, real-time and precision High feature, so that the water translocation process for the soil body in frozen-thaw process provides important evidence.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this The some embodiments recorded in application, for those of ordinary skill in the art, without creative efforts, It is also possible to obtain other drawings based on these drawings.
Fig. 1 is water replenishment and discharge during a kind of monitoring soil body Frozen-thawed cycled in an of the invention exemplary embodiments The structural schematic diagram of device.
Specific embodiment
In view of deficiency in the prior art, inventor is studied for a long period of time and is largely practiced, and is able to propose of the invention Technical solution.The technical solution, its implementation process and principle etc. will be further explained as follows.By should together with institute The present invention will be more fully appreciated in the following specific embodiments that accompanying drawings are read together.Detailed reality of the invention disclosed herein Apply example;However, it should be understood that revealed embodiment only has demonstration of the invention, the present invention can embody in a variety of manners.Cause This, specific function details disclosed herein is not interpreted as limiting, but is interpreted only as the base of claims It plinth and is construed to adopt in different ways in fact any appropriate specific embodiment for teaching those skilled in the art With representative basis of the invention.
Referring to Fig. 1, water replenishment and the device of discharge during a kind of monitoring soil body Frozen-thawed cycled, including fixed bracket 9, it is mainly used for the first container 7 of accommodating test soil sample, enclosed inside has the second container of liquid water, is held for containing by second Third container 3, high accuracy balance 2, high accuracy balance 5 and the computer 8 for being equipped with test record software of the water of device discharge, solid Have on fixed rack 9 along spaced two mounting platforms of gravity direction, high accuracy balance 2 and high accuracy balance 5 are pacified respectively It sets on two mounting platforms, wherein high accuracy balance 2 is located relatively at the lower section of high accuracy balance 5, and computer 8 passes through data respectively Connecting line 1 is connect with high accuracy balance 2, high accuracy balance 5.
Wherein, second container is placed on the work top of high accuracy balance 5, and third container 3 is placed on high accuracy balance 2 Work top on, the first container can be placed on fixed bracket 9, and the first container 7 is through water supply pipe (i.e. aforementioned first connection Pipe, similarly hereinafter) 6 be connected to second container, third container 3 is connected to through drainpipe (i.e. the second connecting tube, similarly hereinafter) 4 with second container.
Specifically, second container is mainly by glass infuser (i.e. container body, similarly hereinafter) 15 and to be covered in glass infuser Rubber upper cover (i.e. the first lid, similarly hereinafter) 13 at 15 upper ports (i.e. first port, similarly hereinafter) is covered in glass infuser lower end Liao Te bottles of horse (or mariotte bottle) of rubber lower cover (i.e. the second lid, similarly hereinafter) composition at mouth (i.e. second port, similarly hereinafter), Liquid water 14 is encapsulated in glass infuser 15, has air cavity 12 between rubber upper cover 13 and the liquid level of liquid water 14, in air cavity Filled with gas (such as air), the first through hole (unmarked in figure) is provided on the side wall of glass infuser 15, under rubber It covers and is provided with the second through hole (unmarked in figure);One end sealing of drainpipe 4 is plugged in the first through hole, and drainpipe The liquid level of liquid water is arranged in for 4 the second nozzle hereinafter, one end sealing of water supply pipe 6 is plugged in the second through hole, and moisturizing The liquid level of liquid water or less is arranged in first nozzle of pipe 6;And with the depth of the liquid water in gravity direction or glass infuser On the basis of direction, the second nozzle of drainpipe 4 is located at the top of water supply pipe 6.
More specifically, water supply pipe 6 is horizontally disposed, and the part that drainpipe 4 is connect with glass infuser 15 is along perpendicular side Air inlet device 11, air inlet device are additionally provided at the position of glass infuser 15 to the U-tube of setting, and in drainpipe 4 Venthole 10 is provided on 11, venthole 10 inside partial drainage pipe 4 and glass infuser 15 through being connected to, and venthole 10 and first The bottom most position of test pattern in container 7 is in same level;Tool is provided on the drainpipe 4 of 15 lateral position of glass infuser There is the air inlet device of venthole, so that the water energy at air inlet device enough contacts atmosphere, therefore water pressure herein is permanent always It is scheduled on an atmospheric pressure, so that guarantee test soil sample can be realized without pressure moisturizing, that is, the flowing of moisture is complete in test soil sample It is because of soil water potential variation in the soil body;Water if soil water potential does not change in the soil body or soil water pressure does not change, in Liao Te bottles of horse Amount will not change.
More specifically, the drainpipe being arranged in glass infuser 15 may include the cross being arranged along the radial direction of glass infuser The vertical tube of pipe and the axial direction setting along glass infuser, transverse tube is connect with vertical tube, and nozzle is formed at the port of vertical tube, and the pipe Mouth is directed towards rubber lower cover.
Specifically, wherein the first container and third container can be using glass container etc., drainpipe can also be and glass Glass cylinder is wholely set, and water supply pipe can be wholely set with rubber lower cover.
It should be noted that aforementioned second container is placed on the work top of high accuracy balance 5, third container 3 is placed On the work top of high accuracy balance 2, it is clear that high accuracy balance 5 can obtain the total of second container and interior liquid water Quality, high accuracy balance 2 can obtain the gross mass of third container 3 and internal water.
The step of when being tested using water replenishment and the device of discharge during monitoring soil body Frozen-thawed cycled includes:
(1) pretest inspection:
According to structure joint test device shown in Fig. 1, and check the sealing of the upper end rubber upper cover of glass infuser 15 Whether performance is good, and whether the bottom of the air inlet device 11 and test soil sample that check 15 side of glass infuser is on sustained height;
(2) moisture is filled
In the under-filled moisture of glass infuser 15, top keeps low pressure gas;
(3) it is tested
It opens high accuracy balance 2, high accuracy balance 5 and test record software and carries out real-time testing record;
(4) test post-processing
After the test, glass infuser 15 is discharged and drains the moisture in bottle, and is moved using draining data are mended come analysis moisture Shift one's love condition.
Water replenishment and the device of discharge during a kind of monitoring soil body Frozen-thawed cycled provided in an embodiment of the present invention, structure Simply, the side of second container is provided with air inlet device, so that the water energy at air inlet device enough contacts atmosphere, therefore this The water pressure at place is constant all the time in an atmospheric pressure, so that guarantee test soil sample can be realized without pressure moisturizing, that is, test soil sample The flowing of middle moisture is simply due to soil water potential in the soil body and changes;And experimental rig provided by the invention can meet and try indoors It tests and feeds moisture for the soil sample in frozen-thaw process, can not only acquire the water replenishment amount in soil sample frozen-thaw process, moreover it is possible to adopt Collect the discharge rate of moisture.Also, the precision balance in experimental rig provided by the invention and software cooperation are practical, can adopt in real time Collection is packaged with the second container of liquid water and the gross mass of the third container for containing discharge water, has easy to use, real When property and feature with high accuracy, so that the water translocation process for the soil body in frozen-thaw process provides important evidence.
It should be appreciated that the technical concepts and features of above-described embodiment only to illustrate the invention, its object is to allow be familiar with this The personage of item technology cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all Equivalent change or modification made by Spirit Essence according to the present invention, should be covered by the protection scope of the present invention.

Claims (10)

1. water replenishment and the device of discharge during a kind of monitoring soil body Frozen-thawed cycled, characterized by comprising:
The first container is at least used to accommodate test soil sample;
Second container, is at least used to encapsulate liquid water, and the second container is connected to through the first connecting tube with the first container;
The lower section of second container is arranged in along gravity direction for third container, the third container, and the third container connects through second Adapter tube is connected to second container, and venthole, and the venthole and test soil sample are additionally provided in second connecting tube Bottom, which is located at, is same as same level;
First Weighing mechanism at least is used to measure the quality of second container;
Second Weighing mechanism is at least used to measure the quality of third container;
Wherein, the top of first nozzle is arranged in along gravity direction for second nozzle.
2. water replenishment and the device of discharge, feature exist during monitoring soil body Frozen-thawed cycled according to claim 1 In: the second container includes container body and the first lid, the sealing cover that are covered at container body first port Close the second lid at container body second port.
3. water replenishment and the device of discharge, feature exist during monitoring soil body Frozen-thawed cycled according to claim 2 In: the first through hole is provided on the container body, the second connection seal of tube is plugged in first through hole; The second through hole is provided on second lid, the first connection seal of tube is plugged in second through hole.
4. water replenishment and the device of discharge during monitoring soil body Frozen-thawed cycled according to claim 1 or 2 or 3, Be characterized in that: the second container is horse Liao Te bottles.
5. water replenishment and the device of discharge, feature exist during monitoring soil body Frozen-thawed cycled according to claim 1 In: air inlet device is provided in second connecting tube, the air inlet device is connected to second connecting tube, described Venthole is arranged on the air inlet device.
6. water replenishment and the device of discharge, feature exist during monitoring soil body Frozen-thawed cycled according to claim 5 In: the air inlet device is the spherical structure that diameter is greater than the second air inlet pipe caliber.
7. water replenishment and the device of discharge, feature exist during monitoring soil body Frozen-thawed cycled according to claim 1 In: first connecting tube is horizontally disposed, and the part that second connecting tube is connect with second container is to be arranged along gravity direction U-tube;And/or first Weighing mechanism and the second Weighing mechanism are weighing balance, the second container is placed on described On the work top of first Weighing mechanism, the third container is placed on the work top of second Weighing mechanism.
8. water replenishment and the device of discharge, feature exist during monitoring soil body Frozen-thawed cycled according to claim 1 In further including fixed bracket, first Weighing mechanism, the second Weighing mechanism are mounted on the fixed bracket.
9. water replenishment and the device of discharge, feature exist during monitoring soil body Frozen-thawed cycled according to claim 1 In further including data recording equipment, the data recording equipment is through data line and first Weighing mechanism, the second weighing Mechanism connection.
10. water replenishment and the test method of discharge during a kind of real-time monitoring soil body Frozen-thawed cycled, characterized by comprising:
Water replenishment and the dress of discharge during monitoring soil body Frozen-thawed cycled as claimed in any one of claims 1-9 wherein are provided It sets,
Test pattern is set in the first container, liquid water is encapsulated in the second container, and makes the test pattern Circulating freezing resistance on a preset condition based;
And by the gross mass of measurement second container and third container, and then realize to test soil sample water during Frozen-thawed cycled Divide the quantitative analysis of supply and discharge situation.
CN201910787441.3A 2019-08-23 2019-08-23 Water replenishment and the device and method of discharge during monitoring soil body Frozen-thawed cycled Pending CN110470815A (en)

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CN201910787441.3A CN110470815A (en) 2019-08-23 2019-08-23 Water replenishment and the device and method of discharge during monitoring soil body Frozen-thawed cycled

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CN201910787441.3A CN110470815A (en) 2019-08-23 2019-08-23 Water replenishment and the device and method of discharge during monitoring soil body Frozen-thawed cycled

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205826656U (en) * 2016-07-27 2016-12-21 长安大学 A kind of frozen soil freeze thawing laboratory testing rig
CN106645260A (en) * 2017-02-26 2017-05-10 中国科学院寒区旱区环境与工程研究所 Automatic water supply and discharge system for soil body pressure freeze thawing experiment
CN108732330A (en) * 2018-05-24 2018-11-02 河北建筑工程学院 A kind of Unidirectional Freezing soil sample test device
CN208488452U (en) * 2018-05-31 2019-02-12 北京城建集团有限责任公司 A kind of multi-functional frost heave, thaw collapse experimental rig
CN109387536A (en) * 2018-12-07 2019-02-26 甘肃省交通建设集团有限公司 A kind of automation dry and wet roadbed freezing and thawing circulating test device and test method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205826656U (en) * 2016-07-27 2016-12-21 长安大学 A kind of frozen soil freeze thawing laboratory testing rig
CN106645260A (en) * 2017-02-26 2017-05-10 中国科学院寒区旱区环境与工程研究所 Automatic water supply and discharge system for soil body pressure freeze thawing experiment
CN108732330A (en) * 2018-05-24 2018-11-02 河北建筑工程学院 A kind of Unidirectional Freezing soil sample test device
CN208488452U (en) * 2018-05-31 2019-02-12 北京城建集团有限责任公司 A kind of multi-functional frost heave, thaw collapse experimental rig
CN109387536A (en) * 2018-12-07 2019-02-26 甘肃省交通建设集团有限公司 A kind of automation dry and wet roadbed freezing and thawing circulating test device and test method

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Application publication date: 20191119