CN106153869A - A kind of geotechnique's Proctor compaction test grinds soil sieve test Apparatus and method for - Google Patents

A kind of geotechnique's Proctor compaction test grinds soil sieve test Apparatus and method for Download PDF

Info

Publication number
CN106153869A
CN106153869A CN201610810445.5A CN201610810445A CN106153869A CN 106153869 A CN106153869 A CN 106153869A CN 201610810445 A CN201610810445 A CN 201610810445A CN 106153869 A CN106153869 A CN 106153869A
Authority
CN
China
Prior art keywords
soil
roller
sample
moisture content
sieve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610810445.5A
Other languages
Chinese (zh)
Inventor
张禾
许尚杰
杜滨
张尚芳
陶遵菊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Water Resources Research Institute of Shandong Province
Original Assignee
Water Resources Research Institute of Shandong Province
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Water Resources Research Institute of Shandong Province filed Critical Water Resources Research Institute of Shandong Province
Priority to CN201610810445.5A priority Critical patent/CN106153869A/en
Publication of CN106153869A publication Critical patent/CN106153869A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The invention discloses a kind of geotechnique's Proctor compaction test and grind soil sieve test Apparatus and method for, including frame, frame is provided with a motor, described motor is rotated by one roller of actuator drives, the two ends of roller are fixed in two gripper shoes each via bearing, two described gripper shoes are connected with former and later two baffle plates, define material charging region；Be provided with the sieve plate of an arc-shaped that there is gap with roller outer surface in the bottom of roller, the bottom of described sieve plate is provided with a downward-sloping splicing plate, pulverizes the earth material after screening and is exported by splicing plate.

Description

A kind of geotechnique's Proctor compaction test grinds soil sieve test Apparatus and method for
Technical field
The invention discloses a kind of geotechnique's Proctor compaction test and grind soil sieve test Apparatus and method for.
Background technology
Compaction test is one of pilot project that in soil test, labor intensity is maximum.The present effectively China people In republic's national standard " Standard for test methods of earthworks " GB/T 50123-1999, the rule to the Proctor compaction test preparation of soil sample It is set to: take Representative soil sample 20Kg by quartering, air-dries and pulverize, cross 5mm sieve, and lower for sieve soil sample is mixed thoroughly；But the most how Air-dry to pulverize and do not provide relevant equipment and method；Therefore the method used at present is manually to pulverize, this artificial stone roller Broken have the disadvantage in that
Cohesive soil by natural moisture content to air-dry during, the caking of soil can be the most closely knit.At present, laboratory staff The normal mode manually preparing compacted soil samples is: in soil air drying process, breaks soil block with axe one by one into pieces, then uses steel pipe Or wood rolls, the soil after rolling pours 5mm sieve into, and the soil sample under sieve is mixed rear watering thoroughly and hit reality.This tests soil Test period length prepared by sample, labor intensity is big, it is serious to pulverize airborne dust in screening process, causes serious air pollution and environment Pollute, the healthy of testing crew is also brought bigger harm simultaneously.
Summary of the invention
In order to solve technical disadvantages present in prior art, the invention discloses a kind of geotechnique's Proctor compaction test and grind soil Sieve test Apparatus and method for.
The technical solution used in the present invention is as follows:
A kind of geotechnique's Proctor compaction test grinds soil sieve test equipment, including frame, is provided with one in described frame Motor, described motor is rotated by one roller of actuator drives, and the two ends of roller are fixed on each via bearing In two gripper shoes, two described gripper shoes are connected with former and later two baffle plates；It is provided with one and roller in the bottom of roller There is the sieve plate of the arc-shaped in gap in roller outer surface, one side of described sieve plate is connected, separately by connecting plate and front apron are fixing One side is directly fixed with backboard and is connected, and front apron, sieve plate, connecting plate and two gripper shoes define material charging region；Institute The bottom stating sieve plate is provided with a downward-sloping splicing plate, forms discharging opening, after rolling screening between splicing plate and front apron Earth material export by splicing plate from discharging opening.
Further, described roller is relative to the distance of former and later two baffle plate eccentric settings, its axis and backboard Distance less than axis Yu front apron.
Further, the axis of described roller is micro-with the distance of backboard more than roller radius, on the one hand ensures Soil block will not fall into sieve plate from the gap between roller and backboard, on the other hand between guarantee roller and backboard not Friction can be produced.
Further, the described distance between roller lowermost end and sieve plate is 5mm.
Further, described sieve plate is provided with some circular holes, a diameter of 5mm in hole.
Further, described motor drives the gear of pair of meshing, described gear to drive sieve by a reductor Withdrawing roll low speed rotation.
Further, described roller rotates to the direction at front apron place；The earth material that described needs roll is placed In material charging region.
The method utilizing said apparatus geotechnique's Proctor compaction test is as follows:
Soil sample is placed in the plane of dry cleansing by step 1, and dry in the sun air-dries；
Soil sample after step 2 will air-dry pours material charging region into along connecting plate, opens stone roller soil sieve test device power supply (DPS) switch, will Earth material pulverizes, and the grogs less than 5mm leaks down from sieve aperture, exports along splicing plate under gravity；Lower for sieve soil sample is mixed thoroughly, and Measure the air-dried moisture content of soil sample；
Step 3 estimates optimum moisture content according to the plastic limit of soil, prepares many group differences by the moisture content differing about 2% successively and contains The sample of water rate；
Step 4 takes the soil sample of 2.5Kg and is laid in the soil container not absorbed water, by predetermined moisture content sprinkler toward soil Uniformly spraying required amount of water on sample, it is standby to mix sealing and standing thoroughly, and time of repose is respectively as follows: high liquid limit clay must not be little less than 24 Time, low liquid limit clay can shorten as one sees fit, but should be less than 12 hours；
Step 5 weighs a certain amount of earth material from the sample prepared, in dividing 3 layers of compaction cylinder pouring compaction test apparatus into and by soil face Leveling, reality is hit in layering.The quality of every layer of earth material is 600-800g, and hair should be dug in the native face of two-layer interface, and every layer 25 is hit；
Step 6, along compaction cylinder top equating sample, removes base plate, cleans drum outer wall, weighs accurately to 1g.
Sample is released from compaction cylinder by step 7, takes containing of 2 a certain amount of earth material parallel assay samples from sample center Water rate, the Parallel errors of moisture content should be not more than 1%；
The sample of other moisture content is hit reality according to above-mentioned steps by step 8 successively；
Step 9 calculates dry density and the moisture content of sample after hitting in fact, draws relation curve.
Further, with dry density as vertical coordinate, moisture content is abscissa, draws dry density bent with the relation of moisture content Line；Dry density with moisture content relation curve are drawn saturated aqueous rate curve.
Further, the minimum preparation of sample 5 groups in step 3, wherein 2 moisture content are more than plastic limit, and 2 moisture content are less than Plastic limit, 1 moisture content is close to plastic limit.
The present invention has the beneficial effect that:
Three steps (break soil block into pieces, roll and sieve) that labor intensity in compaction test is maximum can be replaced by machinery In generation, is artificial, if using the artificial of routine to prepare light-duty compacted soil samples, a people prepares a kind of soil sample at least needs more than 1 hour, Expend a large amount of human resources.And the geotechnological Proctor compaction test developed grinds soil, sieve test equipment, sample preparation only needs somewhat Clock, substantially increases work efficiency, saves the experimentation costs such as human resources.Meanwhile, sample making course avoids airborne dust to sky The pollution of gas, protects environment.Therefore, this instrument has significant economic and social benefit.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is the present invention Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to These accompanying drawings obtain other accompanying drawing.
The side view of Fig. 1 present invention；
The rearview of Fig. 2 present invention；
Fig. 3-1,3-2 are the structure chart of sieve plate；
Fig. 4-1, the structure chart of 4-2 gripper shoe；
In figure: 1 frame, 2 motor bases, 3 motors, 4 gear pairs, 5 gear covers, 6 roller, 7 reinforcing plates, 8 gripper shoes, 9 Bearing, 10 sieve plates, 11 connecting plates, 12 front aprons, plate washer after 13,14 splicing plates.
Detailed description of the invention
As shown in Figure 1, 2, geotechnique's Proctor compaction test grinds soil sieve test equipment, including frame 1, is provided with in frame 1 One motor base 2, arranges a motor 3 on motor base 2, and motor 3 drives a roller 6 to rotate by gear pair 4, The outside of gear pair 4 has gear cover 5, gear cover 5 to be provided with Switching Power Supply, and the two ends of roller 6 are fixed on each via bearing 9 In two gripper shoes 8, two described gripper shoes 8 are connected with forward and backward baffle plate 12,13；One and sieve it is provided with bottom roller 6 There is the sieve plate 10 of the arc-shaped in gap in withdrawing roll outer surface, the bottom of described sieve plate 10 is provided with a splicing plate tilted earthward 14；One side of described sieve plate 10 is connected by connecting plate 11 and front apron are fixing, and another side is direct and backboard 13 Fixing connection；Front apron, sieve plate, connecting plate and two gripper shoes define material charging region；The bottom of described sieve plate is provided with one Downward-sloping splicing plate, forms discharging opening, pulverizes the earth material after screening from discharging opening by splicing between splicing plate and front apron Plate exports.
Further, roller 6 is less than axle relative to former and later two baffle plate eccentric settings, its axis with the distance of backboard Line and the distance of front apron.
Further, the axis of roller 6 is micro-with the distance of backboard more than roller radius, on the one hand ensures soil knot Block will not fall into sieve plate from the gap between roller and backboard, and on the other hand ensureing will not between roller and backboard Produce friction.
Further, the distance between roller 6 lowermost end and sieve plate 10 is 5mm.
Further, sieve plate 10 is provided with some circular holes, a diameter of 5mm of circular hole.
Further, motor 3 drives the gear of pair of meshing, described gear to drive roller low by a reductor Speed rotates.
Further, roller 6 rotates to the direction at front apron place；The earth material that described needs pulverize is placed on and feeds intake In district.
Further, two gripper shoes are provided with reinforcing plate 7.
Concrete work process is as follows:
The earth material pulverized by needs puts into material charging region, then drives motor, driven by motor roller low speed rotation, roller Roller rotates to the direction of front apron, and roller constantly rolls soil block in rotary course, until soil block is ground scattered, point Earth material after Saning crosses the sieve plate of 5mm circular hole, sends from splicing plate；
The said equipment is utilized to carry out the method for compaction test as follows:
1. instrument and equipment
1.1 compaction test apparatuses: be made up of compaction cylinder, hammer and casing.Its size should meet the regulation of following table.
Compaction test apparatus critical piece dimensions table
The hammer of 1.2 compaction test apparatuses should join guide, and enough gaps should be had between hammer and guide to make hammer energy free-falling.Electronic Operation hammer must have control fall away from tracking equipment and hammer point set by certain angle (light-duty 53.5 °) is equally distributed Standby.
1.3 electronic balances: weigh 200g, minimum division value 0.01g.
1.4 platform balances: weigh 10kg, minimum division value 5g.
1.5 sample pushers: preferably with screw jack or hydraulic jack.As without this kind equipment, scraper also can be used From compaction cylinder, sample is taken out with repairing soil cutter.
1.6 other: baking oven, sprinkler, stone roller soil sieve test equipment, soil filling device, repair soil cutter etc..
The most concrete test method:
2.1 prepare sample
2.1.1 taking Representative soil sample 20kg, soil sample be placed in the plane of dry cleansing, dry in the sun air-dries.After air-drying Soil sample pours material charging region into along connecting plate, opens stone roller soil sieve test device power supply (DPS) switch, is pulverized by earth material, less than the grogs of 5mm Leak down from sieve aperture, export along splicing plate under gravity；Lower for sieve soil sample is mixed thoroughly, and measures the air-dried moisture content of soil sample.
2.1.2 estimate optimum moisture content according to the plastic limit of soil, should prepare no less than five by the moisture content differing about 2% successively The sample of the different water cut of group, wherein should have 2 moisture content more than plastic limit, and 2 moisture content are less than plastic limit, and 1 moisture content connects Nearly plastic limit.Calculate by formula (1) and answer amount of water:
m w = m 1 + 0.01 ω 0 × 0.01 ( ω - ω 0 ) - - - ( 1 )
In formula: mωWater quality, g is added needed for-soil sample；
M-air-dries quality of soil sample during moisture content, g；
ω0-air-dry moisture content, %；
Moisture content required by ω-soil sample, %.
2.1.3 the soil sample taking 2.5Kg is laid in the soil container not absorbed water, by predetermined moisture content sprinkler toward soil Uniformly spray required amount of water on sample, mix sealing and standing thoroughly standby.Time of repose is respectively as follows: high liquid limit clay must not be little less than 24 Time, low liquid limit clay can shorten as one sees fit, but should be less than 12 hours.
2.2 examination sample compactings
2.2.1 being placed on solid ground by compaction test apparatus, compaction cylinder is connected with base, installs casing, inspection apparatus The performance of each parts and corollary equipment is the most normal, is uniformly coated with a thin layer lubricating oil at compaction cylinder inwall.
2.2.2 from a test specimen prepared, a certain amount of earth material is weighed, in dividing 3 layers to pour compaction cylinder into and by whole for soil face Flat, reality is hit in layering.Light-duty compacting process divides 3 layers to hit reality, and the quality of every layer of earth material is that (its amount should make to hit sample after reality 600-800g Highly it is slightly above the 1/3 of compaction cylinder), every layer 25 is hit.Every layer of specimen height after hitting in fact is the most roughly equal, the soil of two-layer interface Hair should be dug in face.After hitting real completing, the specimen height beyond compaction cylinder top should be less than 6mm.
2.2.3 with repairing after soil cutter cuts along casing inwall and to dig, twist and take off casing.Along compaction cylinder top carefulness equating sample, Removing base plate, bottom surface is beyond outside cylinder as samples, also answers equating.Clean drum outer wall, weigh, accurately to 1g.
2.2.4 with bulldozing device, sample is released from compaction cylinder, take 2 a certain amount of earth material parallel assays from sample center The moisture content of sample, the Parallel errors of moisture content should be not more than 1%.
2.2.5 specify that the sample to other moisture content hits reality successively by step 2.2.1～2.2.4.Typically do not repeat Use soil sample.
3 test results arrange
3.1 computing formula
3.1.1 the dry density of sample after hitting in fact by formula (2) calculating:
ρ d = ρ 1 + 0.01 ω - - - ( 2 )
In formula: ρd-dry density, g/cm3；
ρ-wet density, g/cm3；
ω-moisture content, %.
Calculate to 0.01g/cm3。
3.1.2 the saturated aqueous rate of soil is calculated under several dry density by formula (3):
ω s a t = ( ρ w ρ d - 1 G s ) × 100 - - - ( 3 )
In formula: ωsatThe saturated aqueous rate of-sample, %；
ρwThe density of water, g/cm during-temperature 4 DEG C3；
ρdThe dry density of-sample, g/cm3；
Gs-soil particle proportion.
3.2 draw relation curve
3.2.1 with dry density as vertical coordinate, moisture content is abscissa, draws the relation curve of dry density and moisture content.Bent The vertical coordinate of line upward peak point represents the maximum dry density hitting real sample, and corresponding abscissa is that to hit the optimum of real sample aqueous Rate.When curve can not draw peak point, should carry out mending point.Soil sample should not be reused.
3.2.2 in dry density with moisture content relation curve, draw saturated aqueous rate curve.
3.3 achievement corrections
3.3.1 in Proctor compaction test, when in sample, the particle diameter granular mass more than 5mm is less than the 30% of sample gross mass Time, reply maximum dry density is corrected, and updating formula is shown in formula (4).
ρ d max ′ = 1 1 - P ρ d max + P ρ w · G s 2 - - - ( 4 )
In formula: ρ 'dmaxMaximum dry density after-correction, g/cm3；
P-particle diameter is more than the content (representing decimally) of 5mm granule；
GS2-particle diameter is more than the mass percent of 5mm granule, (%)；
ρωThe density of-water, g/cm3；
ρdmaxParticle diameter is less than the maximum dry density of 5mm sample, g/cm3。
Calculate to 0.01g/cm3。
3.3.2 in Proctor compaction test, when in sample, the particle diameter granular mass more than 5mm is less than sample gross mass When 30%, also needing to be corrected optimum moisture content, updating formula is shown in formula (5).
ω′op=ωop(1-P)+P·ω2 (5)
In formula: ωop ’Optimum moisture content after-correction, %；
ωop-hit the optimum moisture content of real sample, %；
ω2-particle diameter is more than the sorption moisture content of 5mm grogs, %.
Remaining symbol is ibid.Calculate to 0.01%.
Although the detailed description of the invention of the present invention is described by the above-mentioned accompanying drawing that combines, but not the present invention is protected model The restriction enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme, and those skilled in the art are not Need to pay various amendments or deformation that creative work can make still within protection scope of the present invention.

Claims (9)

1. geotechnological Proctor compaction test grinds a soil sieve test equipment, including frame, it is characterised in that: in described frame Being provided with a motor, described motor is rotated by one roller of actuator drives, and the two ends of roller are each via axle Holding and be fixed in two gripper shoes, two described gripper shoes are connected with former and later two baffle plates；It is provided with one in the bottom of roller The sieve plate of the individual arc-shaped that there is gap with roller outer surface, one side of described sieve plate is fixed with front apron by connecting plate Connecting, another side is directly fixing with backboard to be connected, and front apron, sieve plate, connecting plate and two gripper shoes define throwing Material district；The bottom of described sieve plate is provided with a splicing plate tilted earthward, pulverizes the earth material after screening and is exported by splicing plate.
2. geotechnique's Proctor compaction test as claimed in claim 1 grinds soil sieve test equipment, it is characterised in that: described roller Roller is less than the distance of axis and front apron relative to the distance of former and later two baffle plate eccentric settings, its axis and backboard.
3. geotechnique's Proctor compaction test as claimed in claim 2 grinds soil sieve test equipment, it is characterised in that: described roller The axis of roller is micro-more than roller radius with the distance of backboard.
4. geotechnique's Proctor compaction test as claimed in claim 1 grinds soil sieve test equipment, it is characterised in that: described roller Distance between roller lowermost end and sieve plate is 5mm.
5. geotechnique's Proctor compaction test as claimed in claim 1 grinds soil sieve test equipment, it is characterised in that: described sieve plate It is provided with some circular holes, a diameter of 5mm in hole.
6. geotechnique's Proctor compaction test as claimed in claim 1 grinds soil sieve test equipment, it is characterised in that: described roller Roller rotates to the direction at front apron place.
7. utilize the method that the arbitrary described device of claim 1-6 carries out geotechnique's Proctor compaction test, it is characterised in that as Under:
Soil sample is placed in the plane of dry cleansing by step 1, and dry in the sun air-dries；
Soil sample after step 2 will air-dry pours material charging region into along connecting plate, opens stone roller soil sieve test device power supply (DPS) switch, by earth material Pulverizing, the grogs less than 5mm leaks down from sieve aperture, exports along splicing plate under gravity；Lower for sieve soil sample is mixed thoroughly, and measures The air-dried moisture content of soil sample；
Step 3 estimates optimum moisture content according to the plastic limit of soil, prepares by the moisture content differing about 2% successively and organizes different water cut more Sample；
Step 4 takes the soil sample of 2.5Kg and is laid in the soil container not absorbed water, by predetermined moisture content sprinkler toward in soil sample Uniformly spraying required amount of water, it is standby to mix sealing and standing thoroughly, time of repose be respectively as follows: high liquid limit clay must not less than 24 hours, Low liquid limit clay can shorten as one sees fit, but should be less than 12 hours；
Step 5 weighs a certain amount of earth material from the sample prepared, in dividing 3 layers of compaction cylinder pouring compaction test apparatus into and by whole for soil face Flat, reality is hit in layering.The quality of every layer of earth material is 600-800g, and hair should be dug in the native face of two-layer interface, and every layer 25 is hit；
Step 6, along compaction cylinder top equating sample, removes base plate, cleans drum outer wall, weighs accurately to 1g；
Sample is released from compaction cylinder by step 7, takes the aqueous of 2 a certain amount of earth material parallel assay samples from sample center Rate, the Parallel errors of moisture content should be not more than 1%；
The sample of other moisture content is hit reality according to above-mentioned steps by step 8 successively；
Step 9 calculates dry density and the moisture content of sample after hitting in fact, draws relation curve.
8. method as claimed in claim 7, it is characterised in that the minimum preparation of sample 5 groups in step 3, wherein 2 moisture content More than plastic limit, 2 moisture content are less than plastic limit, and 1 moisture content is close to plastic limit.
9. method as claimed in claim 7, it is characterised in that with dry density as vertical coordinate, moisture content is abscissa, draws dry Density and the relation curve of moisture content；Dry density with moisture content relation curve are drawn saturated aqueous rate curve.
CN201610810445.5A 2016-09-08 2016-09-08 A kind of geotechnique's Proctor compaction test grinds soil sieve test Apparatus and method for Pending CN106153869A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610810445.5A CN106153869A (en) 2016-09-08 2016-09-08 A kind of geotechnique's Proctor compaction test grinds soil sieve test Apparatus and method for

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610810445.5A CN106153869A (en) 2016-09-08 2016-09-08 A kind of geotechnique's Proctor compaction test grinds soil sieve test Apparatus and method for

Publications (1)

Publication Number Publication Date
CN106153869A true CN106153869A (en) 2016-11-23

Family

ID=57340987

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610810445.5A Pending CN106153869A (en) 2016-09-08 2016-09-08 A kind of geotechnique's Proctor compaction test grinds soil sieve test Apparatus and method for

Country Status (1)

Country Link
CN (1) CN106153869A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2200858A (en) * 1987-02-06 1988-08-17 Energiagazdalkodasi Intezet Process for grinding and drying geologically young peat, lignine, soft brown coal and energetic coals, and preparing them for pulverized-coal combustion
CN2669985Y (en) * 2003-12-22 2005-01-12 冯智勇 Improved wet mill
CN2794636Y (en) * 2005-12-28 2006-07-12 陈大年 Shear mill fine crusher
CN204085974U (en) * 2014-08-11 2015-01-07 深圳市宇驰检测技术有限公司 A kind of efficient air-dry screening installation of soil
CN104792592A (en) * 2015-04-17 2015-07-22 浙江大学 Laboratory soil sample crushing and sieving device and laboratory soil sample crushing and sieving method
CN204503282U (en) * 2015-01-30 2015-07-29 河南健康源生物科技有限公司 One waves pulverizer
CN205435969U (en) * 2016-03-14 2016-08-10 江西怡杉环保股份有限公司 A smash agitating unit for heavy metal contaminated soil administers
CN205982268U (en) * 2016-09-08 2017-02-22 山东省水利科学研究院 Native test device is ground to geotechnique proctor compaction test air -dried soil appearance

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2200858A (en) * 1987-02-06 1988-08-17 Energiagazdalkodasi Intezet Process for grinding and drying geologically young peat, lignine, soft brown coal and energetic coals, and preparing them for pulverized-coal combustion
CN2669985Y (en) * 2003-12-22 2005-01-12 冯智勇 Improved wet mill
CN2794636Y (en) * 2005-12-28 2006-07-12 陈大年 Shear mill fine crusher
CN204085974U (en) * 2014-08-11 2015-01-07 深圳市宇驰检测技术有限公司 A kind of efficient air-dry screening installation of soil
CN204503282U (en) * 2015-01-30 2015-07-29 河南健康源生物科技有限公司 One waves pulverizer
CN104792592A (en) * 2015-04-17 2015-07-22 浙江大学 Laboratory soil sample crushing and sieving device and laboratory soil sample crushing and sieving method
CN205435969U (en) * 2016-03-14 2016-08-10 江西怡杉环保股份有限公司 A smash agitating unit for heavy metal contaminated soil administers
CN205982268U (en) * 2016-09-08 2017-02-22 山东省水利科学研究院 Native test device is ground to geotechnique proctor compaction test air -dried soil appearance

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
杨海梅: "击实试验操作中的注意事项", 《山东水利》 *
杨绍平: "《岩土测试技术》", 31 July 2015 *
齐齐哈尔轻工学院: "《玻璃机械设备》", 31 May 1981 *

Similar Documents

Publication Publication Date Title
CN104914007B (en) Visual observation testing system and method for flow characteristics of muck in soil chamber of single-circle shield
CN104596874A (en) Multistage rotation dust washout testing device for aviation engine blade
Guan et al. Study on the reduction of soil adhesion and tillage force of bionic cutter teeth in secondary soil crushing
KR102122387B1 (en) Improved soil manufacturing management system using rotary shredding mixing device
WO2023193820A1 (en) Research and test system for influencing factors of rock breaking and cuttings removal efficiency of drilling vertical shaft roller cutter
CN107101857A (en) Simulate the preparation method of the soil-stone embankment soil mechanics test specimen of on-site rolling effect
CN106290795A (en) A kind of geotechnique's Proctor compaction test air-dries soil sample and grinds scattered sieve test device and method
CN107219151A (en) A kind of test method for determining roadbed soil-stone material maximum dry density
CN105776925A (en) Grain graded screening method for roadbed fillers produced from construction waste
CN103526665A (en) Accurate preparation method of emulsified asphalt cold recycled mixture
CN206937640U (en) A kind of concrete additive feeding leak-proof device
CN110907320A (en) Laboratory simulation pavement dust production and detection method
CN100400750C (en) Mixing construction technique for road of secondary soil lime and soil lime in large area, and test method of quality control
CN206096116U (en) Ecological side slope soil moved in to improve original stability research experiment platform of rock matter
CN106442204A (en) Method for measuring water content of graded broken stone
CN105755909A (en) Method using building garbage to produce railway roadbed filling material
CN205982266U (en) Geotechnique proctor compaction test grinds native size analysis equipment
CN205982267U (en) Size analysis device that looses is ground to geotechnique proctor compaction test air -dried soil appearance
CN106153869A (en) A kind of geotechnique's Proctor compaction test grinds soil sieve test Apparatus and method for
CN110053167A (en) A kind of test method preparing basalt fibre rubber grain concrete
CN206002337U (en) A kind of undisturbed soil drawing out soil equipment of the simulation soil erosion
CN109974961A (en) Combination bucket-wheel stacker reclaimer emission quantity wind comfort model equipment and test method
CN206523414U (en) For outdoor portable wind erosion analogue means
CN209017412U (en) A kind of soil conditioner prosthetic device convenient for control amount
CN109603665A (en) Power ultrasound promotes soil restoring device homogeneous device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20161123