CN107153111A - A kind of self-balancing body frost heaving experiment bucket and its test method - Google Patents
A kind of self-balancing body frost heaving experiment bucket and its test method Download PDFInfo
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- CN107153111A CN107153111A CN201710309836.3A CN201710309836A CN107153111A CN 107153111 A CN107153111 A CN 107153111A CN 201710309836 A CN201710309836 A CN 201710309836A CN 107153111 A CN107153111 A CN 107153111A
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- staving
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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
- G01N33/24—Earth materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
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- Food Science & Technology (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a kind of self-balancing body frost heaving experiment bucket and its test method.Include staving, staving center is provided with cylindrical anchor dynamometer passage, set and be in close contact and the lucite top plate that can slide up and down with barrel body wall on staving top, top plate stays apertured hole with staving bottom plate center, anchor dynamometer is connected by wire with Acquisition Instrument, stayed along in bucket wall short transverse and set five thermometer holes, on the bucket wall close to staving bottom and higher than hold-down support upper edge, five water supplement ports are equipped with along circumferential direction, the water pipe terminal being connected with water supplement port is connected with the hydraulic pressure groove of a constant volume, liquid turbine flowmeter is respectively mounted on each water pipe, five exhaust outlets are set on staving bottom plate, staving bottom is nested with hold-down support.The experimental rig of the present invention is simple in construction, it is not necessary to single pressue device, easy to operate, applied widely.
Description
Technical field
The present invention relates to a kind of frost heave test device and test method, more particularly to a kind of carry out frost heave test for soil
Self-balancing body frost heaving tests bucket, and uses test method of this experiment bucket to soil progress frost heaving characteristic experiment.
Background technology
Frozen soil is that a kind of temperature is less than 0 DEG C and the Tu Yan containing ice.It is different according to the frozen state duration, can be jelly
Soil is divided into three classes, i.e., instantaneous frozen soil, frost zone and ever-frozen ground.Seasonal frozen ground is widely distributed in different continents with
Most of territory of state, China's frost zone accounts for the 53.5% of area.Domestic and international existing a large amount of engineering practices and grind
Study carefully result to show, frost heave action is the major reason that the various engineerings in Frozen Area produce freeze injury, particularly to railway, highway etc.
Linear engineering, the frost heave of frost zone causes the destruction of engineering can be more violent.On the one hand the engineerings such as railway, highway are reduced
Use quality, reduces its service life.On the other hand, subgrade deformation caused by frost heave will have a strong impact on the safety of railway, highway
Operation, brings huge economic loss, and society is exerted an adverse impact.
The content of the invention
It is an object of the invention to provide a kind of self-balancing body frost heaving experiment bucket and its test method, carried out using the device
The frost heaving characteristic experiment of the soil body, it is not necessary to single pressue device, it is easy to operate, it is applied widely.
The purpose of the present invention is realized by the following technical solutions：
A kind of self-balancing body frost heaving tests bucket, includes staving, staving center is provided with cylindrical anchor dynamometer passage,
Set and be in close contact and the lucite top plate that can slide up and down with barrel body wall on staving top, top plate and staving bottom plate center are equal
Apertured hole is stayed, for interting and anchoring anchor dynamometer, anchor dynamometer is connected by wire with Acquisition Instrument, along bucket wall height side
Stay upwards and set five thermometer holes, for connecting the thermocouple temperature sensor being embedded in the soil body, thermocouple temperature sensor leads to
Wire is crossed with Acquisition Instrument to be connected；It is equal along circumferential direction on the bucket wall close to staving bottom and higher than hold-down support upper edge
Provided with five water supplement ports, the water pipe terminal being connected with water supplement port is connected with the hydraulic pressure groove of a constant volume, is mended each
Liquid turbine flowmeter is respectively mounted in water lines, five exhaust outlets are set on staving bottom plate, and staving bottom and hold-down support are embedding
Set.
The staving is lucite material, and bucket wall sets five thermocouple thermometer holes, for laying electroheat pair TEMP
Device.
Described cylindrical anchor dynamometer passage is made by lucite material, contour with staving.
Described top plate and bottom plate are made by pmma material, and top plate and bottom plate center stay apertured hole to be used to anchor
Anchor dynamometer.
Close to staving bottom and higher than on the bucket wall at base top edge height, five are evenly provided with along staving girth
Water supplement port.Each water supplement port is connected by water pipe with hydraulic pressure groove, and water pipe is made up of quality of rubber materials, connection liquid whirlpool
Flowmeters.
Hole is reserved on described hold-down support；Hold-down support is provided with four bolts hole, to connect four fixations
Screw rod is supported as fixed.
The test method of described frost heave test bucket, including tests below step：
（1）The thin filter paper of circle is placed in staving bottom, soil sample is loaded in experiment bucket from top, its is freely slipped to bottom
Portion；
（2）Anchor cable is passed through from staving center, anchored on bottom and top, anchor dynamometer is arranged on anchor base, anchor cable from
Passed through in experiment bucket centre bore, dynamometer is placed between anchor base and work anchor, and make the axis of anchor dynamometer and treat measuring rope
Diameter parallel；
（3）Apertured is stayed to insert thermocouple temperature sensor along bucket wall, the water pipe connected on bucket wall supplies water and excluded in bottom plate
Bubble, adjusts water supply installation；
（4）Water content of soil is recorded according to liquid turbine flowmeter, and frost-heave force and temperature data are recorded by computer terminal.
Described step（2）It should be cleaned out between anchor dynamometer top and bottom and pressure-bearing surface during installation, anchor dynamometer
It should place steady.
Beneficial effects of the present invention：Efficiently solve the frost-heave force test problem of seasonal freezing soil.It is convenient
Real-time measurement to soil body frost-heave force under outdoor natural temperature, with good promotional value.The experiment dress of the present invention
Put simple in construction, it is not necessary to single pressue device, it is easy to operate, it is applied widely.
Brief description of the drawings
Fig. 1 tests the front view of bucket for a kind of self-balancing body frost heaving of the invention：
Fig. 2 is the front view of staving；
Fig. 3 is the front view of hold-down support：
Fig. 4 is the upward view of hold-down support.
Wherein：1 staving, 2 top plates, 3 bottom plates, 4 anchor dynamometer passages, 5 anchor dynamometers, 6 thermocouple thermometer holes, 7
Support, 9 water supplement ports, 10 exhaust outlets, 11 water pipes, 12 liquid turbine flowmeters are fixed in hold-down support, 8.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings：
As shown in Figure 1, 2, a kind of self-balancing body frost heaving experiment bucket.Staving 1 including organic glass material high-strength light is with consolidating
Determine bearing 7.The top of staving 1 is provided with to be in close contact and the lucite top plate 2 that can slide up and down with bucket wall.Top plate 2 and staving bottom
Stay apertured hole, the centering setting anchor dynamometer passage 4 equal with hole diameter, for interting and anchoring anchor cable in the center of plate 3
Dynamometer 5.Five thermocouple thermometer holes 6 are set being stayed on the right side of bucket wall on different height, for the electric thermo-couple temperature being embedded in the soil body
Sensor is connected by wire with acquisition Instrumen.Five water supplement ports 9, moisturizing are being uniformly provided with the bucket wall of staving bottom
Mouth 9 is connected with water pipe 11, and liquid turbine flowmeter 12 is provided with water pipe 11.Exhaust outlet is left on staving bottom plate
10, staving bottom is nested in hold-down support 7.Hold-down support 7 is reserved with some perforations, to be arranged when staving is with bearing build-in
Gas port passes through.Four bolts hole are additionally provided with hold-down support, four fixed supports 8 are connected, to stablize experiment bucket.
Staving and the anchor dynamometer passage is lucite material, and the external diameter of staving is 800mm, is highly
2000mm, bucket wall thickness 30mm.The anchor dynamometer passage set in staving center, external diameter is 100mm, highly with staving height
It is equal, wall thickness 30mm.
On the side wall of the lucite staving, one thermocouple is set every 400mm from the range of bottom up 1600mm
Thermometer hole, is passed through, and be connected with acquisition Instrumen for thermocouple temperature sensor wire.
Apertured hole, hole diameter and anchor dynamometer passage centering, and diameter are stayed in the top plate of staving and bottom plate center
It is identical, so that anchor dynamometer is passed through and is anchored.
Close to staving bottom and higher than on the bucket wall at base top edge height, along staving girth, 5 are uniformly provided with directly
Footpath 50mm water supplement port, each water supplement port is connected by water pipe with hydraulic pressure groove.Liquid turbine is connected on water pipe
Flowmeter, the inflow to control staving.
The steam vent for setting 5 a diameter of 10mm is circumferentially equably stayed on the staving bottom plate.
As shown in Figure 3,4, the hold-down support is made of common iron, and its internal diameter is identical with staving external diameter, side thickness
Spend for 10mm, be highly 200mm.Hole is left at hold-down support bottom centre, so that anchor cable dynamometry end anchor head is passed through.It is fixed
Bearing 7 is reserved with some perforations, so that exhaust outlet passes through when entire body is with bearing build-in.Four spiral shells are additionally provided with hold-down support
Keyhole, to connect four fixed supports.
The fixed support is standing screw, and the diameter of standing screw and bearing is 50mm.Standing screw has enough
Intensity ensure not produce relative displacement between hold-down support and experiment staving, bearing can support whole experiment bucket and soil sample
Gross weight, and cause staving leave ground certain altitude.
The frost heave test bucket is applied to sand frost heave test, and specific process of the test includes：
（1）The thin filter paper of circle is placed in staving bottom, soil sample is loaded in experiment bucket from top, its is freely slipped to bottom
Portion.
（2）Anchor cable is passed through from staving center, anchored in bottom and top, anchor dynamometer is arranged on anchor base, anchor
Rope is passed through from experiment bucket centre bore, and dynamometer is placed between anchor base and work anchor, and makes the axis of anchor dynamometer with treating
Measuring rope diameter parallel.It should be cleaned out between anchor dynamometer top and bottom and pressure-bearing surface during installation, it is impossible to have sand grains, otherwise can shadow
Ring measured value.Anchor dynamometer should be placed steadily, such as found that geometric eccentricity is excessive, should be adjusted in time.
（3）Apertured is stayed to insert thermocouple temperature sensor along bucket wall.The water pipe connected on bucket wall, supplies water and excludes bottom
Bubble in plate, adjusts water supply installation.
（4）Water content of soil is recorded according to liquid turbine flowmeter, and frost-heave force and temperature number are recorded by computer terminal
According to.
Embodiment of the present invention does not constitute the limitation to the application scope, every in present inventive concept
Within spirit and principle, any modifications, equivalent substitutions and improvements that one of skill in the art can make etc. should be included in
Within protection scope of the present invention.
Claims (8)
1. a kind of self-balancing body frost heaving tests bucket, it is characterized in that：Include staving, staving center is provided with cylindrical anchor cable
Dynamometer passage, sets on staving top and is in close contact and can slide up and down lucite top plate, top plate and bucket with barrel body wall
Apertured hole is stayed at body bottom plate center, for interting and anchoring anchor dynamometer, and anchor dynamometer is connected by wire with Acquisition Instrument,
Stayed along in bucket wall short transverse and set five thermometer holes, for connecting the thermocouple temperature sensor being embedded in the soil body, thermocouple
Temperature sensor is connected by wire with Acquisition Instrument；On the bucket wall close to staving bottom and higher than hold-down support upper edge,
Five water supplement ports are equipped with along circumferential direction, the water pipe terminal being connected with water supplement port is connected with the hydraulic pressure groove of a constant volume
Connect, liquid turbine flowmeter be respectively mounted on each water pipe, on staving bottom plate set five exhaust outlets, staving bottom with
Hold-down support is nested.
2. a kind of self-balancing body frost heaving experiment bucket according to claim 1, it is characterized in that the staving is lucite
Material, bucket wall sets five thermocouple thermometer holes, for laying electroheat pair temperature sensor.
3. a kind of self-balancing body frost heaving experiment bucket according to claim 1, it is characterized in that described cylindrical anchor cable is surveyed
Power meter passage is made by lucite material, contour with staving.
4. a kind of self-balancing body frost heaving experiment bucket according to claim 1, it is characterized in that described top plate and bottom plate is equal
It is to be made by pmma material, top plate and bottom plate center stay apertured hole to be used to anchor anchor dynamometer.
5. a kind of self-balancing body frost heaving experiment bucket according to claim 1, it is characterized in that close to staving bottom and height
In on the bucket wall that base top edge is highly located, five water supplement ports are evenly provided with along staving girth, each water supplement port passes through moisturizing
Pipeline is connected with hydraulic pressure groove, and water pipe is made up of quality of rubber materials, connects liquid turbine flowmeter.
6. a kind of self-balancing body frost heaving experiment bucket according to claim 1, it is characterized in that pre- on described hold-down support
Leave hole；Hold-down support is supported provided with four bolts hole to connect four standing screws as fixed.
7. using the test method of the frost heave test bucket as described in claim any one of 1-6, it is characterized in that including tests below
Step：
（1）The thin filter paper of circle is placed in staving bottom, soil sample is loaded in experiment bucket from top, its is freely slipped to bottom
Portion；
（2）Anchor cable is passed through from staving center, anchored on bottom and top, anchor dynamometer is arranged on anchor base, anchor cable from
Passed through in experiment bucket centre bore, dynamometer is placed between anchor base and work anchor, and make the axis of anchor dynamometer and treat measuring rope
Diameter parallel；
（3）Apertured is stayed to insert thermocouple temperature sensor along bucket wall, the water pipe connected on bucket wall supplies water and excluded in bottom plate
Bubble, adjusts water supply installation；
（4）Water content of soil is recorded according to liquid turbine flowmeter, and frost-heave force and temperature data are recorded by computer terminal.
8. a kind of self-balancing body frost heaving according to claim 7 tests the test method of bucket, it is characterized in that, described step
Suddenly（2）It should be cleaned out between anchor dynamometer top and bottom and pressure-bearing surface during installation, anchor dynamometer should be placed steadily.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710309836.3A CN107153111A (en) | 2017-05-04 | 2017-05-04 | A kind of self-balancing body frost heaving experiment bucket and its test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710309836.3A CN107153111A (en) | 2017-05-04 | 2017-05-04 | A kind of self-balancing body frost heaving experiment bucket and its test method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107153111A true CN107153111A (en) | 2017-09-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710309836.3A Pending CN107153111A (en) | 2017-05-04 | 2017-05-04 | A kind of self-balancing body frost heaving experiment bucket and its test method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435717A (en) * | 2011-09-21 | 2012-05-02 | 南京林业大学 | Soil frost-heaving and thawing-settlement tester based on thermoelectric refrigeration control |
| RU2458205C1 (en) * | 2010-12-29 | 2012-08-10 | Государственное образовательное учреждение высшего профессионального образования "Сибирская государственная автомобильно-дорожная академия" (СибАДИ) | Pile to measure tangential forces of frost heaving of soils |
| CN104655823A (en) * | 2015-02-12 | 2015-05-27 | 中南大学 | Frost heaving meter |
| 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 |
| CN105928966A (en) * | 2016-06-02 | 2016-09-07 | 中铁四局集团第二工程有限公司 | Frost heave test barrel and test method thereof |
| CN206725559U (en) * | 2017-05-04 | 2017-12-08 | 沈阳建筑大学 | A kind of self-balancing body frost heaving tests bucket |
-
2017
- 2017-05-04 CN CN201710309836.3A patent/CN107153111A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2458205C1 (en) * | 2010-12-29 | 2012-08-10 | Государственное образовательное учреждение высшего профессионального образования "Сибирская государственная автомобильно-дорожная академия" (СибАДИ) | Pile to measure tangential forces of frost heaving of soils |
| CN102435717A (en) * | 2011-09-21 | 2012-05-02 | 南京林业大学 | Soil frost-heaving and thawing-settlement tester based on thermoelectric refrigeration control |
| CN104655823A (en) * | 2015-02-12 | 2015-05-27 | 中南大学 | Frost heaving meter |
| 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 |
| CN105928966A (en) * | 2016-06-02 | 2016-09-07 | 中铁四局集团第二工程有限公司 | Frost heave test barrel and test method thereof |
| CN206725559U (en) * | 2017-05-04 | 2017-12-08 | 沈阳建筑大学 | A kind of self-balancing body frost heaving tests bucket |
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