CN102115321A - Material of simulated lunar soil - Google Patents
Material of simulated lunar soil Download PDFInfo
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- CN102115321A CN102115321A CN2009102171526A CN200910217152A CN102115321A CN 102115321 A CN102115321 A CN 102115321A CN 2009102171526 A CN2009102171526 A CN 2009102171526A CN 200910217152 A CN200910217152 A CN 200910217152A CN 102115321 A CN102115321 A CN 102115321A
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- lunar soil
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- soil
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- 239000002689 soil Substances 0.000 title claims abstract description 73
- 239000000463 material Substances 0.000 title claims abstract description 31
- 239000002245 particle Substances 0.000 claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 9
- 238000011049 filling Methods 0.000 claims abstract description 4
- 238000004088 simulation Methods 0.000 claims description 60
- 241000219991 Lythraceae Species 0.000 claims description 27
- 235000014360 Punica granatum Nutrition 0.000 claims description 27
- 235000013312 flour Nutrition 0.000 claims description 27
- 239000004575 stone Substances 0.000 claims description 27
- 238000012360 testing method Methods 0.000 abstract description 17
- 239000002223 garnet Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 2
- 241001061257 Emmelichthyidae Species 0.000 abstract 2
- 230000004936 stimulating effect Effects 0.000 abstract 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 8
- 238000007689 inspection Methods 0.000 description 7
- 239000011521 glass Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000011800 void material Substances 0.000 description 6
- 238000011161 development Methods 0.000 description 5
- 101100260020 Caenorhabditis elegans mls-1 gene Proteins 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 101100451301 Caenorhabditis elegans mls-2 gene Proteins 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 101100005297 Mus musculus Cat gene Proteins 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 235000021321 essential mineral Nutrition 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000003278 mimic effect Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229910052655 plagioclase feldspar Inorganic materials 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention provides a material of simulated lunar soil, which comprises 60-95 wt% of Beijing Zhuzhuang dry silt with a particle size of less than 5 mm and 5-40 wt% of Hebei Lingshou garnet powder with a particle size of less than 5 mm. Compared with existing simulated lunar soil, the simulated lunar soil of the present invention has a filling dry density of 1.45-1.70 g/cm3 and a corresponding internal friction angle of about 40 degree, which can meet the requirements of a stimulated lunar surface test site for lunar rovers. The invention can also meet the requirements of stimulating lunar soil with a middle to small internal friction angle in stimulated lunar surface test sites for lunar rovers, and the raw materials of silt and garnet are readily available, easy to process, and have low price.
Description
Technical field
The invention belongs to moonfall simulation technique field, relate in particular to a kind of silt of certain particle diameter and formulated simulation lunar soil material of pomegranate stone flour of certain particle diameter of utilizing.
Background technology
According to the document statistics of publishing, up to now, external simulation lunar soil mainly contains the JSC-1 of the U.S., and MLS-1, MLS-2, MKS-1 and FJS-1 be totally five kinds of simulation lunar soil, and domestic CAS-1 simulation lunar soil.
JSC-1 simulation lunar soil is to preside over development by the subordinate's of NASA (NASA) Johnson space center (JSC).JSC-1 is a kind of basalt matter volcanic ash that is rich in glass, through simply processing.
MLS-1 simulation lunar soil is developed by Univ Minnesota-Twin Cities USA.The parent material of MLS-1 simulation lunar soil is that rich titanium crystalline basalt about 1,000,000,000 years is appeared for passing through rupture northern bank age of Lake Superior (Lake Superior) of (Mid-Continent Rift) of De Luce (Duluth belongs to the Minnesota State) mid-continental, North America.Through pulverizing, grinding to form particle diameter less than 1mm or thinner particle, getting wherein a part handles through the heat-agglomerating that heats up rapidly of ISSP (In-flightSustained Shockwave Plasma Reactor) technology, with simulation menology meteorite hit process, finally generate glass substance.Glass substance is mixed with 1: 3 (mass ratio) with the basalt powder, and the MLS-1 that is mixed with simulation lunar soil contains the glass of 25% (also can prepare the simulation lunar soil of other glass content as required), can with 10%～80% glassy phase analogy in the lunar soil.
MLS-2 simulation lunar soil is a kind of lunar highlands lunar soil simulation substance, makes through pulverizing, grinding to sieve for the plagioclasite of mid-continental, De Luce North America fracture, and essential mineral is the plagioclase of An=80 mutually, contains the minute quantity enhydrite.MLS-2 contains higher SiO than MLS-I
2Lower Ti contains higher Al simultaneously.
MKS-I and FJS-I simulation lunar soil are by the space and the development of robot system portion of Japanese clear water Co., Ltd. (Shimizu Corporation), parent material is a basaltic lava, after grinding and processing, have similar chemical ingredients, size-grade distribution and mechanical property, and be all low titanium basalt matter to Apollo 14 sampling point lunar soil.
Inst. of Geochemistry, Chinese Academy of Sciences Zheng Yongchun etc. consist of the reference standard that seriation simulation lunar soil is developed with the average chemical constitution of Apollo and each time of Luna moonfall sampling point lunar soil with average mineral and glass, use for reference the development experience of JSC-1 simulation lunar soil, having proposed with Jingyu, Jilin alkalescence Black Warrior matter volcanic cinder is the CAS-1 simulation lunar soil of parent material development, and its main component is similar with the average chemical constitution of the lunar soil sample that Apollo 14 lunar landing point cosmonaut gather.
Though up to the present, development has above-mentioned 6 kinds of simulation lunar soil altogether, mainly is that the lunar soil with two moonfalls of Apollo 11 and Apollo14 sampling point is that target is carried out mimic, and other Apollo and Luna sampling point also propose without any the simulation lunar soil.The internal friction angle of these simulation lunar soil is more than or equal to 45 °, be suitable in moon landing device landing shock simulation test field, being used as the bigger simulation lunar soil of internal friction angle, but and be not suitable for the inspection tour prober for moon surface simulation medium simulation lunar soil less than normal of the needed internal friction angle in lunar surface testing ground (the average internal friction angle of typical lunar soil in 0～60cm depth range is 48 °～51 °).And for the required simulation lunar soil testing ground of inspection tour prober for moon surface travelling performance test, should be according to the relation of inspection tour prober for moon surface travelling performance with simulation lunar soil mechanical property, the characteristics that bigger variation is arranged at moonscape lunar soil physico-mechanical properties with geographic location difference, from relatively safe angle, need suitably pine, the medium simulation lunar soil less than normal of internal friction angle partially.Based on this, seek a kind ofly to be applicable to that the simulation lunar soil of the inspection tour prober for moon surface simulation needed internal friction angle in lunar surface testing ground medium (being not more than 40 °) less than normal is very necessary.
Summary of the invention
The object of the present invention is to provide the medium simulation lunar soil material less than normal of a kind of internal friction angle, this material is applicable in the testing ground of inspection tour prober for moon surface simulation lunar surface.
Simulation lunar soil material of the present invention in the gross weight of material, includes following components in weight percentage:
Particle diameter is less than the dry powder soil 60%-95% of 5mm
Particle diameter is less than the pomegranate stone flour 5%-40% of 5mm
In the above-mentioned simulation lunar soil material, the weight percent of dry powder soil is preferably 60%-80%.More preferably 80%, particle diameter is preferably less than 2mm; The weight percent of pomegranate stone flour is preferably 20%-40%, and more preferably 20%.Particle diameter is preferably less than 2mm.
Wherein, the dry density of filling of simulation lunar soil material is 1.45-1.70g/cm
3, corresponding internal friction angle about 40 °, preferred 37-40 °.
Compare with existing simulation lunar soil, the dry density of filling of simulation lunar soil of the present invention is 1.45-1.70g/cm
3, corresponding internal friction angle can satisfy the needs at inspection tour prober for moon surface simulation lunar surface testing ground about 40 °.Can satisfy the requirement of the medium lunar soil less than normal of inspection tour prober for moon surface simulation lunar surface testing ground simulation internal friction angle, and silt and garnet starting material obtain easily, be easy to processing, cheap.
Description of drawings
Fig. 1 is the size grading curve of silt and Lingshou pomegranate stone flour.
Fig. 2 is 100% silt direct shear test normal stress and shearing stress graph of a relation.
Among the figure, relative density is 79%, and density is 1.55g/cm
3, internal friction angle is 37 °, cohesion is 22kPa.
Fig. 3 is the direct shear test normal stress and the shearing stress graph of a relation of the simulation lunar soil material of 80% silt of the present invention, 20% pomegranate stone flour composition.
Among the figure, relative density is 76%, and density is 1.62g/cm
3, internal friction angle is 39 °, cohesion is 7kPa.
Fig. 4 is 80% silt of the present invention, 20% pomegranate stone flour direct shear test normal stress and shearing stress graph of a relation.
Among the figure, relative density is 83%, and density is 1.67g/cm
3, internal friction angle is 38 °, cohesion is 18kPa.
Embodiment
Below in conjunction with embodiment invention is elaborated, so that understand content of the present invention better.
Used Beijing silt is taken from Daxing District, Beijing Zhu Zhuan, and the pomegranate stone flour is taken from the Lingshou, Hebei, and the size grading curve of silt and pomegranate stone flour as shown in Figure 1.
The preparation of embodiment 1 simulation lunar soil material
Adopt Beijing Zhu Zhuan silt, Lingshou, Hebei pomegranate stone flour to prepare the simulation lunar soil.The median size of silt is 0.07mm, and the median size of pomegranate stone flour is 0.08mm, and silt mixes by 80: 20 weight ratio with the pomegranate stone flour, and promptly in the simulation lunar soil, silt accounts for 80% of gross weight, and the pomegranate stone flour accounts for 20%.
The preparation of embodiment 2 simulation lunar soil materials
Adopt the raw material identical with embodiment 1 to prepare, wherein the median size of silt is 0.07mm, and the median size of pomegranate stone flour is 0.08mm, silt mixes by 95: 5 weight ratio with the pomegranate stone flour, promptly in the simulation lunar soil, silt accounts for 95% of gross weight, and the pomegranate stone flour accounts for 5%.
Wherein, Beijing Zhu Zhuan silt, Lingshou pomegranate stone flour and the hybrid analog-digital simulation lunar soil material of embodiment 1 are measured proportion by " Standard for test methods of earthworks " (GB/T 50123-1999), record the specific gravity of soil particle G of Beijing Zhu Zhuan silt and Lingshou, Hebei pomegranate stone flour
sBe respectively 2.69 and 3.71, the specific gravity of soil particle of simulation lunar soil is 2.85.
Carry out maximum void ratio test and minimum void ratio test by " Standard for test methods of earthworks " (GB/T 50123-1999), measure maximum, minimum void ratio and maximum, the minimum dry density of silt and microlith garnet powder recombined sample, test-results is as shown in table 1.Give the test-results of silt in the table 1.The accessible dry density scope of recombined sample is about (1.16～1.80) g/cm as shown in Table 1
3
Maximum, minimum dry density and the void ratio of table 1 simulation lunar soil of the present invention material
Hence one can see that, and Beijing accessible dry density scope of Zhu Zhuan silt sample is about (1.16～1.70) g/cm
3(corresponding void ratio is 1.32～0.58).Based on Beijing Zhu Zhuan silt, to mix outward after 5%～20% the pomegranate stone flour, maximum dry density can be by 1.70g/cm
3Be increased to 1.80g/cm
3(corresponding void ratio is 0.62).Compare with single Beijing Zhu Zhuan silt, mix the simulation lunar soil of pomegranate stone flour and can simulate the bigger lunar soil situation of density.
Wherein, by " Standard for test methods of earthworks " (GB/T 50123-1999), adopt direct shear test to measure the slip resistance of simulation lunar soil material, the relative density of getting Zhu Zhuan silt and pomegranate stone flour hybrid analog-digital simulation lunar soil sample is 76% and 83%, measures its internal friction angle respectively
With the size of cohesion c, referring to table 2.
The parameter and the test-results of table 2 silt and pomegranate stone flour hybrid analog-digital simulation lunar soil sample direct shear test
Test shows, Beijing Zhu Zhuan silt is mixed with the pomegranate stone flour, and in the mass ratio of silt and pomegranate stone flour was 95: 5 to 80: 20 scope, the specific gravity value of mixing material increased with the increase of garnet powder content, but internal friction angle does not have obvious variation.Because in such proportional range, the skeleton of mixing material remains by silt and constitutes, and the pomegranate stone flour that is mixed does not change the shearing-resistance characteristic of mixing material sample significantly.
Although above the specific embodiment of the present invention has been given to describe in detail and explanation; but should indicatedly be; can carry out various equivalences to above-mentioned embodiment according to conception of the present invention changes and modification; when the function that it produced does not exceed spiritual that specification sheets and accompanying drawing contain yet, all should be within protection scope of the present invention.
Claims (5)
1. simulate the lunar soil material for one kind,, include following components in weight percentage in the gross weight of material:
Particle diameter is less than the dry powder soil 60%-95% of 5mm
Particle diameter is less than the pomegranate stone flour 5%-40% of 5mm
2. simulation lunar soil material as claimed in claim 1 is characterized in that, in the described simulation lunar soil material, the weight percent of dry powder soil is 60%-80%, and the weight percent of pomegranate stone flour is 20%-40%, and its particle diameter is usually less than 2mm.
3. simulation lunar soil material as claimed in claim 2 is characterized in that the weight percent of dry powder soil is 80%, and the weight percent of pomegranate stone flour is preferably 20%.
4. as each described simulation lunar soil material of claim 1-3, it is characterized in that the dry density of filling of simulation lunar soil material is 1.45-1.70g/cm
3
5. as each described simulation lunar soil material of claim 1-3, it is characterized in that the internal friction angle of simulation lunar soil material is 35 °-40 °.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910217152A CN102115321B (en) | 2009-12-31 | 2009-12-31 | Material of simulated lunar soil |
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| CN200910217152A CN102115321B (en) | 2009-12-31 | 2009-12-31 | Material of simulated lunar soil |
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| CN102115321A true CN102115321A (en) | 2011-07-06 |
| CN102115321B CN102115321B (en) | 2012-08-29 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101957280A (en) * | 2010-09-29 | 2011-01-26 | 中国科学院国家天文台 | Method for preparing simulative lunar soil |
| CN102589910A (en) * | 2011-12-20 | 2012-07-18 | 北京卫星环境工程研究所 | Lunar soil and lunar appearance simulation system for ground walking test of lunar surface rover and construction method of lunar soil and lunar appearance simulation system |
| CN102967498A (en) * | 2012-12-04 | 2013-03-13 | 中国北方车辆研究所 | Low-gravity simulated lunar soil |
| CN104729558A (en) * | 2015-03-05 | 2015-06-24 | 北京空间机电研究所 | Method for simulating surface characters of moon |
| CN104297007B (en) * | 2014-09-24 | 2017-07-04 | 吉林大学 | For the engineering simulation Mars earth of rover ground experiment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5315513A (en) * | 1991-10-29 | 1994-05-24 | The United States Of America As Represented By The Secretary Of The Air Force | System for modelling moderate resolution atmospheric propagation |
| CN101452655B (en) * | 2007-12-04 | 2011-12-21 | 北京卫星环境工程研究所 | Synthesis simulation test field for lunar surface landform and its simulation method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101957280A (en) * | 2010-09-29 | 2011-01-26 | 中国科学院国家天文台 | Method for preparing simulative lunar soil |
| CN102589910A (en) * | 2011-12-20 | 2012-07-18 | 北京卫星环境工程研究所 | Lunar soil and lunar appearance simulation system for ground walking test of lunar surface rover and construction method of lunar soil and lunar appearance simulation system |
| CN102589910B (en) * | 2011-12-20 | 2014-11-12 | 北京卫星环境工程研究所 | Lunar soil and lunar appearance simulation system for ground walking test of lunar surface rover and construction method of lunar soil and lunar appearance simulation system |
| CN102967498A (en) * | 2012-12-04 | 2013-03-13 | 中国北方车辆研究所 | Low-gravity simulated lunar soil |
| CN104297007B (en) * | 2014-09-24 | 2017-07-04 | 吉林大学 | For the engineering simulation Mars earth of rover ground experiment |
| CN104729558A (en) * | 2015-03-05 | 2015-06-24 | 北京空间机电研究所 | Method for simulating surface characters of moon |
| CN104729558B (en) * | 2015-03-05 | 2017-05-10 | 北京空间机电研究所 | Method for simulating surface characters of moon |
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| CN102115321B (en) | 2012-08-29 |
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