CN109211650A - A kind of marine origin reshaped clay sieve soil and moisture determination method - Google Patents
A kind of marine origin reshaped clay sieve soil and moisture determination method Download PDFInfo
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- CN109211650A CN109211650A CN201811255569.7A CN201811255569A CN109211650A CN 109211650 A CN109211650 A CN 109211650A CN 201811255569 A CN201811255569 A CN 201811255569A CN 109211650 A CN109211650 A CN 109211650A
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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
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
- G01N5/045—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder for determining moisture content
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Abstract
The invention discloses a kind of marine origin reshaped clay sieve soil and moisture determination method, method are as follows: (1) taking soil according to experimental measuring in Deep Foundation Pit excavation site, soil sample is filled in dress soil working tool;(2) soil sample is transported to laboratory;(3) marine origin clay impregnates in water, after soil property impregnates softening, is picked out the sundries in marine origin clay with hand after wearing gloves;(4) soil is sieved for the first time;(5) soil is sieved second;(6) marine origin clay is stirred evenly;(7) water content of marine origin clay is measured;(8) it is spare to measure satisfactory marine origin clay pack.The method overcome water content is excessively high, is greater than the defects of 0.3mm particle grains of sand are more after the traditional sieve soil of marine origin clay, substantially increase the accuracy rate for sieving native efficiency and moisture determination, the sieve native time is saved, suitable for the indoor sieve soil of marine origin clay and moisture determination.
Description
Technical field
The present invention relates to a kind of clay sieve soil and moisture determination method, specifically a kind of marine origin reshaped clay sieve soil
And moisture determination method, belong to the interleaving techniques such as geotechnical engineering, ocean engineering, underground and Tunnel Engineering field.
Background technique
In recent years, the density of population of metropolis is increasing all over the world, with Asian countries such as China, Singapore, Japan
For typical case, thus brought overcrowding and land resource scarcity problem is also more obvious.In addition, in order to maintain one it is livable
Space, continuous Extended chemotherapy Facilities Construction sustains economic growth, and majority state is studying four-dimensional development space.Therefore,
Under the background condition for greatly developing green construction material, marine clay physics, the mechanical characteristic for making great efforts exploitation green economy are ground
Study carefully, systematically study the mechanical characteristics such as microstructure, strength characteristics, yield behavior feature, the stiffness characteristics of marine origin clay,
Just become the heat subject studied in the world at present.
The sieve soil and moisture determination process and method of traditional marine origin clay are more rough, and fining degree is not high
Biggish error is brought to laboratory test research, is deposited after sieving soil and moisture determination method sieve soil using the general marine clay origin cause of formation
In following defect:
(1) sundries after sieve soil in marine origin clay is more, generally existing greater than the grains of sand of 0.3mm;
(2) water content of marine origin clay is larger after sieve soil, and generally higher than 100%, it is unable to complete later period strengthening agent such as
The uniform stirring of cement, flyash etc.;
(3) ingredient of marine origin clay changes larger after oven drying method makes sieve native, influences the survey of its physics, mechanical property
It is fixed;
(4) since the viscosity and water content of marine origin clay are larger, the method and efficiency of sieve soil and moisture determination
It is universal not high.
Summary of the invention
It is insufficient according to prior art, a kind of marine origin reshaped clay sieve soil and moisture determination method are provided, used
The mode of pipelining carries out sieve soil to marine origin clay, measures marine origin clay using standard, easy mode
Water content, the method overcome water content is excessively high, it is more etc. to be greater than the 0.3mm particle grains of sand after the traditional sieve soil of marine origin clay
Defect substantially increases the accuracy rate for sieving native efficiency and moisture determination, has saved the sieve native time, viscous suitable for marine origin
The indoor sieve soil of soil and moisture determination.
The present invention is realized by following technical scheme:
A kind of marine origin reshaped clay sieve is native and moisture determination method, marine origin clay have natural moisture content
Greatly, void ratio is big, the compressed coefficient is high, intensity is low, and there is special engineering properties, the majorities such as creep properties, thixotropy to contain one
Fixed organic substance, engineering geological condition are poor.Basis with simplification for marine origin clay and theoretical research for convenience, room
Interior experimental study needs to remold it, and specific remodeling, sieve soil and moisture determination method are as follows:
(1) soil is taken according to experimental measuring in the Deep Foundation Pits excavation site such as subway, tunnel, airport, soil sample is filled to
It fills in soil working tool;
(2) soil sample is transported to laboratory;
(3) marine origin clay impregnates in water, and after soil property impregnates softening, wearing will be in marine origin clay with hand after gloves
Larger shell, rubble, the sundries such as root system of plant pick out;
(4) soil is sieved for the first time;
(5) soil is sieved second;
(6) marine origin clay is stirred evenly;
(7) water content of marine origin clay is measured;
(8) it is spare to measure satisfactory marine origin clay pack.
Preferably, marine origin clay takes the control errors of native depth in H ± 500mm;Take native scope control to take
Soil point is the center of circle, within the scope of radius 20m;The backacter that suction dredger equipment is got rusty by grabbing bucket.
Preferably, dress soil working tool is the PVC plastic charging basket that hard black has top pressure closure, has and does not absorb water, is water-tight
With good sealing performance;The inner wall of PVC plastic charging basket has anti-bonding device, and anti-bonding device is by up of three-layer, from plastic barrel
Inside to outside is followed successively by elastomer film brushed with interleaving agent, waterproof roll, wire netting, elastomer film can bear to
The weight of few 30kg, waterproof roll has good anti-puncture ability, can guarantee the sundries such as shell in marine origin clay not
This layer of waterproof roll is worn out, wire netting is monoblock type stainless steel and iron silk screen, and mesh size thereon is 50mm x 50mm, iron wire
The outer shape of net is consistent with the barrel-shaped shape of PVC plastic, so that wire netting can be placed in PVC plastic charging basket, is being higher by PVC plastic
The handle with plastic protective sleeve is installed at bucket 10cm.
Preferably, marine origin clay transport will select to carry out under shady and cool weather condition, forbid severe in sleet etc.
Weather transport avoids direct sunlight that water content is changed;Behind transport to laboratory, same batch marine origin clay is put
Set same position, same environmental conditions (temperature ± 2 °, humidity ± 2%) storage.
Preferably, the time that marine origin clay impregnates in water cannot be less than 48h, and water consumption is just to flood after maceration
Do not have marine origin clay, water consumption must not be excessive or very few.
Preferably, gloves are hard waterproof, the anti-puncture rubber gloves with liner, and the length of gloves is at forearm;
After impregnating 48h, long hilt broadsword gloves rub marine origin clay to quasi-flow state, will apparent larger shell, root system of plant, rubble
The foreign matters such as block choose the dedicated rubbish storage bucket of rear placement to be processed.
Preferably, the stainless steel wire mesh first time with side length no more than 0.5m x 0.5m or diameter no more than 0.5m
Sieve soil, the sieve pore for sieving native wire-mesh screen for the first time is 1mm, side height is not more than 200mm, mesh screen surrounding is paved intermediate outstanding
Sky, the marine origin clay after net is crossed in its underpart placement access, with hard waterproof, the anti-puncture rubber gloves with liner
Marine origin clay is put to mesh screen surface and is rubbed with palmar aspect, will be stayed in sieve after marine origin clay leaks down from sieve
The big particles such as sand are cleaned out, and are repeated the above steps until the first time sieve geotechnique for completing taken marine origin clay makees.
Preferably, second of the stainless steel wire mesh with side length no more than 0.5m x 0.5m or diameter no more than 0.5m
Sieve soil, second of sieve pore for sieving native wire-mesh screen is 0.3mm, side height is not more than 200mm, and mesh screen surrounding is paved centre
Vacantly, the marine origin clay after net is crossed in its underpart placement access, with hard waterproof, the anti-puncture rubber hand with liner
Set puts the marine origin clay after first time screening to mesh screen surface to be rubbed with palmar aspect, is leaked to marine origin clay from sieve
It will stay in sieve after lower and cleaned out greater than 0.3mm sand grains, repeated the above steps until completing taken marine origin clay
Second of sieve geotechnique makees.
Preferably, the marine origin clay after the screening of second 0.3mm mesh screen is put stirs into blender, stirs
The agitator and stirring rod material of device are aluminum, and the amount of holding of marine origin clay is no more than the 2/ of agitator volume in agitator
3, it is stirred using the mixing speed of middling speed to high speed (150r/min-250r/min), until hearing there is Pi crack sound
It is adjusted to low speed (100r/min) stirring after sound, tests the water content of marine origin clay in blender.
Preferably, the specific steps of marine origin clay water content are tested are as follows:
(1) aluminum agitator and aluminum stirring rod are cleaned up and is dried, aluminum agitator and aluminum stirring rod are weighed up
Quality m0;
(2) the marine origin clay sieved is put into aluminum agitator and is stirred, aluminum agitator is removed,
The soil body on aluminum agitator inward flange moves to agitator center, continues to stir;
(3) it cleans up soil sample aluminium box, be put into baking oven drying, weigh up 3 soil sample boxes after drying using Precision Electronics Balance
Quality m1, m2, m3;
(4) soil that three different locations are stirred is randomly selected, soil is put into soil sample aluminium box using aluminum scuppit, respectively
Weigh up quality m1', m2', m3';
(5) the soil sample aluminium box for weighing up quality, which is put into baking oven, to be toasted;
(6) the soil sample aluminium box quality m after weighing up drying1", m2", m3";
(7) the quality m of aluminum agitator is weighed up0';
(8) aluminum agitator is sealed with plastic fresh-keeping membrane, surrounding rubber band banding prevents moisture from evaporating.
Preferably, the water content of marine origin clay controls between 85% ± 5%, and the mode of not handy drying substitutes
Naturally stirring reduces water content.
Preferably, the calculating process of marine origin clay water content ω is as follows:
Water content
Preferably, the marine origin clay after moisture determination is filled to spare in polybag;The material of polybag is poly-
Ethylene, heat sealing strength is not less than 7.0N/15mm and heat seal tightly, securely occurs without gas leakage situation, model 40cm x 30cm.
The invention has the advantages that:
The present invention gives a kind of marine origin reshaped clay sieve soil and moisture determination methods, and the method overcome tradition
Larger soil particle is difficult to screen out that clean, marine origin clay after sieve soil water content is excessively high, water content test essence during sieve soil
The defects of exactness is not high substantially increases the sieve soil efficiency and moisture determination accuracy rate of marine origin clay, for for marine facies
The physics of origin cause of formation clay, Research on Mechanical Properties are laid a good foundation.
Detailed description of the invention
Attached drawing 1 is that scene of the invention takes native schematic diagram;
Attached drawing 2 is PVC plastic charging basket schematic diagram of the invention;
Attached drawing 3 is PVC plastic charging basket sectional view of the invention;
Attached drawing 4 is sieve soil gloves schematic diagram of the invention;
Attached drawing 5 is to sieve native schematic diagram (circle) first time of the invention;
Attached drawing 6 is that first time sieve soil of the invention uses mesh screen top view (circle);
Attached drawing 7 is the native schematic diagram (rectangular) of sieve for the first time of the invention;
Attached drawing 8 is that first time sieve soil of the invention uses mesh screen top view (rectangular);
Attached drawing 9 is the native schematic diagram (circle) of second of sieve of the invention;
Attached drawing 10 is that second of sieve soil of the invention uses mesh screen top view (circle);
Attached drawing 11 is the native schematic diagram (rectangular) of second of sieve of the invention;
Attached drawing 12 is that second of sieve soil of the invention uses mesh screen top view (rectangular);
Attached drawing 13 is blender schematic diagram of the invention.
In figure: 110-ground, 120-excavators, 130-marine origin clays, 140-buckets, 150-marine origins
Clay takes native depth, and 160-marine origin clays take native point, and 170-marine origin clays take the native radius of influence, 210-PVC plastics
Charging basket, 220-bungs, 230-wire nettings, 240-waterproof rolls, 250-elastomer films, 260-handles I, 270-
Hand II, 310-rubber gloves, 320-is long-armed, 330-cotton protective devices, 340-drawknot nets, the anti-puncture rubber of 350-hard
Glue, 410-1mm mesh screens, 420-1mm sieve pores, 430-connect native device I, 440-unsized marine origin clays, 450-pads
Plate I, 510-0.3mm mesh screens, 520-0.3mm sieve pores, 530-connect native device II, the marine facies after the screening of 540-1mm mesh screens at
Because of clay, 550-backing plates II, 610-blenders, 620-handles III, 630-aluminum agitators, 640-aluminum stirring rod,
650-rotational speed governors.
Specific embodiment
To keep the purposes, technical schemes and advantages of the invention implemented clearer, below in conjunction in the embodiment of the present invention
Attached drawing, technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class
As label indicate same or similar element or element with the same or similar functions.Described embodiment is the present invention
A part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to use
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.Under
Face is described in detail the embodiment of the present invention in conjunction with attached drawing.
For a certain marine origin clay area deep excavation project case, this area's marine origin clay is completely taken
Soil, sieve soil class moisture determination process are made as detailed below.
(1) scene takes soil.According to excavation of foundation pit position, excavation of foundation pit depth and native depth is taken, excavator 120 is moved to flat
Whole, hard ground 110, the digging machine arm and bucket 140 for starting excavator 120 prepare to excavate marine origin clay 130, to be excavated
When machine 120 is excavated to marine origin clay and takes soil point 160, take the native radius of influence 170 and marine origin viscous in marine origin clay
Soil takes in native 150 range of depth and takes soil, and the marine origin clay shifting in the bucket 140 of stainless steel is put to PVC plastic charging basket 210.
(2) scene dress soil, transport.Before holding marine origin clay 130, the handle II 270 for having carried PVC plastic charging basket 210 will
It is put to suitable position, and the matched steel wire 230 of model, waterproof roll 240 and high-elastic are successively put in PVC plastic charging basket 210
Property plastic foil 250, start to hold marine origin clay 130 after being stablized with hand pressing, amount of holding is held without departing from PVC plastic charging basket 210
Long-pending 2/3, after the completion of taking soil, the PVC plastic charging basket 210 for filling marine origin clay 130 with bung 220 is strict to be covered, and is taken
After soil is fully completed, by it, all transport avoids in transit high temperature from being exposed to the sun, the hair for situations such as rainwater drenches to indoor laboratory
It is raw.
(3) it impregnates, pick sundries.Behind transport to laboratory, before sieve geotechnique makees formal start, two people lift handle simultaneously
I 260 are immersed in marine origin clay 130 in hard plastic vessels, and soaking time is in 48h or more, after the completion of impregnating, work
Personnel take rubber gloves 310 and carry out sundries Weeding, in order to prevent the hard impurities such as shell scratching fingers and arm, rubber
Gloves 310 have long-armed 320, and successively by the cotton protective device 330 of contact skin, increase gloves intensity and toughness inside it
Drawknot net 340 and the anti-puncture rubber 350 of hard form, by rubber gloves 310 with after good, start marine origin clay 130
In the sundries such as apparent shell, rubble, root system of plant pick out.
(4) soil is sieved for the first time.It completes step (3) to start to sieve soil for the first time afterwards, places backing plate I 450 in surrounding first, it will be straight
Diameter, which is placed on backing plate no more than the circle of 0.5m or side length no more than the rectangular 1mm mesh screen 410 of 0.5x 0.5, keeps it securely steady
It is fixed, it is placed in 410 lower part of 1mm mesh screen and connects native device I 430, after the completion of preparation, suitable unsized marine origin is glued
Soil 440 is placed on 1mm sieve pore 420, is pressed lightly on the centre of the palm, until the marine origin clay on 1mm sieve pore 420 is leaked to lower part
It connects in native device I 430, if it find that the speed of unsized marine origin clay 440 leakage sieve is excessively slow or does not leak sieve phenomenon, it will
The larger particles not leaked on 1mm mesh screen 410 continue to sieve geotechnological work after cleaning out, and repeat the above steps until will own
Marine origin clay is completed to sieve soil for the first time.
(5) soil is sieved second.It completes step (4) and starts second of sieve soil afterwards, place backing plate II 550 in surrounding first, it will
The rectangular 0.3mm mesh screen 510 of circle of the diameter no more than 0.5m or side length no more than 0.5x 0.5, which is placed on backing plate, makes its jail
Gu stablizing, placed in 510 lower part of 0.3mm mesh screen and connect native device II 530, after the completion of preparation, suitable 1mm mesh screen is sieved
Marine origin clay 540 afterwards is placed on 0.3mm sieve pore 520, is pressed lightly on the centre of the palm, until the sea on 0.3mm sieve pore 520
Phase origin cause of formation clay, which is leaked to lower part, to be connect in native device II 530, if it find that the marine origin clay 540 after the screening of 1mm mesh screen leaks sieve
Speed it is excessively slow or do not leak sieve phenomenon, continue sieve soil after the larger particles not leaked on 0.3mm mesh screen 510 are cleaned out
Work repeats the above steps until the marine origin clay after the screening of all 1mm mesh screens, which is completed second, sieves soil.
(6) it stirs evenly.After checking that the working performance of blender 610 is normal, aluminum agitator 630 and aluminum stirring are cleared up
Stick 640, the marine origin clay after second in step (5) is sieved move in aluminum agitator 630, and it is viscous to place marine origin
Soil is no more than the 2/3 of 630 capacity of aluminum agitator, and handle III 620 is aligned accurately, will be stirred using rotational speed governor 650
Mix machine 610 gear be adjusted in formally starting to stir at a high speed, after hearing crack crack sound, by rotational speed governor 650
It is adjusted to low speed, is fitted into after mixing evenly spare in polybag.
(7) moisture determination.Water content test and moisture content calculate step and method is as follows:
(a) aluminum agitator and aluminum stirring rod are cleaned up and is dried, aluminum agitator and aluminum stirring rod are weighed up
Quality m0;
(b) soil sieved is put into aluminum agitator, stirs 5min, aluminum agitator is removed, aluminum is stirred
The soil body on bucket inward flange moves to agitator center, continues to stir 5min;
(c) it cleans up soil sample aluminium box, be put into baking oven drying, weigh up 3 soil sample boxes after drying using Precision Electronics Balance
Quality m1, m2, m3;
(d) soil that three different locations are stirred is randomly selected, soil is put into soil sample aluminium box using aluminum scuppit, respectively
Weigh up quality m1', m2', m3';
(e) the soil sample aluminium box for weighing up quality, which is put into baking oven, to be toasted for 24 hours;
(f) the soil sample aluminium box quality m after weighing up drying1", m2", m3";
(g) the quality m of aluminum agitator is weighed up0' (quality including soil);
(h) aluminum agitator is sealed with plastic fresh-keeping membrane, surrounding rubber band banding prevents moisture from evaporating.
(i) calculating process of marine origin clay water content ω is as follows:
Water content
(8) water content controls.It repeats step (7), controls the water content of marine origin clay between 85% ± 5%, no
The mode of handy drying, which substitutes nature stirring, reduces water content.
(9) it packs spare.Marine origin clay after moisture determination is filled to spare in polybag, and the material of polybag is
Polyethylene, heat sealing strength is not less than 7.0N/15mm and heat seal tightly, securely occurs without gas leakage situation, model 40cm x
30cm。
By the above method it is found that carrying out sieve soil to marine origin clay by the way of pipelining, standard, letter are used
Just mode measures the water content of marine origin clay, and the method overcome water content mistakes after the traditional sieve soil of marine origin clay
The defects of high, more greater than the 0.3mm particle grains of sand, substantially increases the accuracy rate for sieving native efficiency and moisture determination, saves
The native time is sieved, suitable for the indoor sieve soil of marine origin clay and moisture determination.
Specific embodiment:
Certain coastal area deep pit digging takes soil to marine origin clay, excavation of foundation pit depth about 15m, takes the native depth to be
10m is the center of circle, 2m as in the circle of radius between 10.5m, to take native range be to take soil point.The one kind provided according to the present invention
Marine origin reshaped clay sieve soil and moisture determination method carry out taking soil, sieve soil class water content test using following steps.
Step 1: taking the native radius of influence 170 and marine origin clay to take native 150 range 10m of depth in marine origin clay
Soil is taken in 10.5m, the marine origin clay shifting in the bucket 140 of stainless steel is put to PVC plastic charging basket 210, as shown in Figure 1.
Step 2: successively putting the matched steel wire 230 of model, waterproof roll 240 and high-elastic in PVC plastic charging basket 210
Property plastic foil 250, start to hold marine origin clay 130 after being stablized with hand pressing, amount of holding is 210 volume of PVC plastic charging basket
2/3;After the completion of taking soil, the PVC plastic charging basket 210 for filling marine origin clay 130 with bung 220 is strict to be covered, it is complete
Portion is transported to indoor laboratory, as shown in Figure 2 and Figure 3.
Step 3: marine origin clay 130 is immersed in hard plastic vessels, soaking time is after 48h, staff
It takes rubber gloves 310 to pick out the sundries such as shell, rubble, root system of plant apparent in marine origin clay 130, such as scheme
Shown in 4.
Step 4: suitable unsized marine origin clay 440 is placed on 1mm sieve pore 420, gently pressed with the centre of the palm
Pressure, until the marine origin clay on 1mm sieve pore 420 is leaked to lower part and connect in native device 430 I, such as Fig. 5, Fig. 6, Fig. 7, Fig. 8 institute
Show.
Step 5: the marine origin clay after the screening of suitable 0.3mm mesh screen 510 is placed on 0.3mm sieve pore 520,
Pressed lightly on the centre of the palm, until the marine origin clay on 0.3mm sieve pore 520 is leaked to lower part and is connect in native device II 530, as Fig. 9,
Shown in Figure 10, Figure 11, Figure 12.
Step 6: placing the marine origin clay after the screening of 0.3mm mesh screen is the 2/3 of 630 capacity of aluminum agitator, revolving speed
650 gear of controller be adjusted in formally starting to stir at a high speed, after hearing crack crack sound, by rotational speed governor 650
Be adjusted to low speed, be fitted into after mixing evenly it is spare in polybag, as shown in figure 13.
Step 7: (1) cleans up aluminum agitator 630 and aluminum stirring rod 640 and dries, aluminum agitator is weighed up
630 and aluminum stirring rod 640 quality m0For 181g;(2) soil sieved is put into aluminum agitator 630, stirs 5min,
Aluminum agitator 630 is removed, the soil body on 630 inward flange of aluminum agitator is moved to agitator center, continues to stir 5min;
(3) it cleans up soil sample aluminium box, be put into baking oven drying, the quality m of 3 soil sample aluminium boxes after drying is weighed up using Precision Electronics Balance1
For 10.025g, m2For 10.134g, m3For 10.166g;(4) soil that three different locations are stirred is randomly selected, it is small using aluminum
Soil is put into soil sample aluminium box by shovel, weighs up quality m respectively1' it is 18.621g, m2' it is 20.312g, m3' it is 18.987g;(5) claim
The soil sample aluminium box of good quality, which is put into baking oven, to be toasted for 24 hours;(6) the soil sample aluminium box quality m after weighing up drying1" it is 14.612g, m2”
For 15.522g, m3" it is 14.832g;(7) the quality m of aluminum agitator is weighed up0' (quality including soil);Utilize formula
Marine origin clay water content after calculating screening is 88.4%.
Step 8: the marine origin clay sieved, moisture determination is completed is fitted into spare in polybag.
In summary, the method overcome larger soil particles during conventional screen soil to be difficult to screen out marine facies after clean, sieve soil
The defects of water content of origin cause of formation clay is excessively high, water content testing precision is not high substantially increases the sieve soil of marine origin clay
Efficiency and moisture determination accuracy rate, lay a good foundation for the physics for marine origin clay, Research on Mechanical Properties.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof;To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, it should be understood by those ordinary skilled in the art that: still
It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced;Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (10)
1. a kind of marine origin reshaped clay sieves soil and moisture determination method, which is characterized in that specific remodeling, sieve are native and aqueous
Quantity measuring method is as follows:
(1) soil is taken according to experimental measuring in Deep Foundation Pit excavation site, soil sample is filled in dress soil working tool;
(2) soil sample is transported to laboratory;
(3) marine origin clay impregnates in water, and after soil property impregnates softening, wearing will be miscellaneous in marine origin clay with hand after gloves
Object is picked out;
(4) soil is sieved for the first time;
(5) soil is sieved second;
(6) marine origin clay is stirred evenly;
(7) water content of marine origin clay is measured;
(8) it is spare to measure satisfactory marine origin clay pack.
2. a kind of marine origin reshaped clay sieve soil according to claim 1 and moisture determination method, it is characterised in that:
The marine origin clay is required in same depth, adjacent position, take soil working tool according to experimental measuring determine to select excavator or
Artificial spade;
The dress soil working tool is hard black and the PVC plastic charging basket for having top pressure closure, and the inner wall of the PVC plastic charging basket is with anti-sticking
Tie device.
3. a kind of marine origin reshaped clay sieve soil according to claim 2 and moisture determination method, it is characterised in that:
The anti-bonding device by up of three-layer, inside PVC plastic charging basket to outside be followed successively by elastomer film brushed with interleaving agent,
Waterproof roll, wire netting.
4. a kind of marine origin reshaped clay sieve soil according to claim 1 and moisture determination method, it is characterised in that:
Taken marine origin clay transport will select to carry out under shady and cool weather condition, forbid transporting in sleet harsh weather, avoid sun
Light directly shines so that water content changes;To behind laboratory, same batch marine origin clay places same position, identical for transport
Environmental condition storage.
5. a kind of marine origin reshaped clay sieve soil according to claim 1 and moisture determination method, it is characterised in that:
The time that marine origin clay impregnates in water cannot be less than 48h, and water consumption is just to flood marine origin clay after maceration;Leaching
After steeping 48h, long hilt broadsword gloves rub marine origin clay to quasi-flow state, and foreign matter is chosen the rear dedicated rubbish of placement to be processed and is received
Receive bucket.
6. a kind of marine origin reshaped clay sieve soil according to claim 1 and moisture determination method, it is characterised in that:
Stainless steel wire mesh with side length no more than 0.5mx0.5m or diameter no more than 0.5m sieves soil for the first time, for the first time the native gold of sieve
The sieve pore for belonging to mesh screen is 1mm, side height is not more than 200mm, and mesh screen surrounding is paved centre vacantly, places access in its underpart
Cross net after marine origin clay, marine origin clay is put to mesh screen surface with rubber gloves and is rubbed with palmar aspect, to marine facies at
Big particle stayed in sieve cleaned out after leaking down because of clay from sieve, repeat the above steps until complete taken marine facies at
Because the first time sieve geotechnique of clay makees.
7. a kind of marine origin reshaped clay sieve soil according to claim 1 and moisture determination method, it is characterised in that:
Stainless steel wire mesh with side length no more than 0.5mx0.5m or diameter no more than 0.5m sieves soil for the second time, the native gold of second of sieve
The sieve pore for belonging to mesh screen is 0.3mm, side height is not more than 200mm, and mesh screen surrounding is paved centre vacantly, places and contains in its underpart
Marine origin clay after netting is taken over, and the marine origin clay after first time being sieved with rubber gloves is put to mesh screen surface palm
Face rubbing, will stay in sieve after marine origin clay leaks down from sieve and cleans out greater than 0.3mm sand grains, repeat above-mentioned step
Rapid second of sieve geotechnique up to completing taken marine origin clay makees.
8. a kind of marine origin reshaped clay sieve soil according to claim 1 and moisture determination method, it is characterised in that:
Marine origin clay after second is sieved geotechnique's work is put to be stirred into blender, marine origin clay in aluminum agitator
Amount of holding be no more than agitator volume 2/3, be stirred using the mixing speed of middling speed to high speed, until hear have Pi crack
It is adjusted to stir at low speed after sound, tests the water content of marine origin clay in blender.
9. a kind of marine origin reshaped clay sieve soil according to claim 1 and moisture determination method, which is characterized in that
Test the specific steps of marine origin clay water content are as follows:
(1) aluminum agitator and aluminum stirring rod are cleaned up and is dried, the quality of aluminum agitator and aluminum stirring rod is weighed up
m0;
(2) the marine origin clay sieved is put into aluminum agitator and is stirred, aluminum agitator removed, aluminum
The soil body on agitator inward flange moves to agitator center, continues to stir;
(3) it cleans up soil sample aluminium box, be put into baking oven drying, the quality of 3 soil sample boxes after drying is weighed up using Precision Electronics Balance
m1, m2, m3;
(4) soil that three different locations are stirred is randomly selected, soil is put into soil sample aluminium box using aluminum scuppit, is weighed up respectively
Quality m1', m2', m3';
(5) the soil sample aluminium box for weighing up quality, which is put into baking oven, to be toasted;
(6) the soil sample aluminium box quality m after weighing up drying1", m2", m3";
(7) the quality m of aluminum agitator is weighed up0';
(8) aluminum agitator is sealed with plastic fresh-keeping membrane;
(9) calculating process of marine origin clay water content ω is as follows:
Water content
10. a kind of marine origin reshaped clay sieve soil according to claim 1 and moisture determination method, feature exist
In: the marine origin clay after moisture determination is filled to spare in polybag;The material of the polybag is polyethylene.
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