摘要
以吉林省靖宇县境内的红色火山灰为原材料,将其烘干、粉碎、筛分后通过调整级配,力学试验成功研制出了Tongji-1(简称TJ-1)模拟月壤。测试了TJ-1模拟月壤的矿物成分、颗粒形态、比重、内摩擦角、黏聚力、压缩指数、动剪模量、阻尼比及吸湿性能等,并将TJ-1模拟月壤与月壤以及国际上已有模拟月壤的物理力学特性进行了对比分析。结果表明:TJ-1模拟月壤的物理力学特性在月壤的范围之内,可模拟月壤的基本力学特性;且与其他模拟月壤相比,具有级配稳定,较大孔隙比时抗剪强度高的特点。
Tongji-1 lunar soil simulant（TJ-1 for short）,which is originated from red volcanic ashes from Jingyu County,Jilin Province,was recently invented by drying,crushing,sieving and adjusting the gradation.Physical and mechanical properties of TJ-1 lunar soil simulant（e.g.,mineralogy composition,shape of particles,density,specific gravity,internal friction angle,cohesion,compression index,dynamic shear modulus,damping ratio and moisture absorption properties） are measured.TJ-1 demonstrates certain similarity to lunar regolith in terms of physical and mechanical properties,and it is an ideal substitute of lunar regolith located from 0 to 30 cm below the lunar surface in the mare region on the moon.Compared with other simulants introduced in the literatures,TJ-1 has an internal friction angle as high as 45° and hence is advantageous over other simulants when high shear strength is desired.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2011年第2期209-214,共6页
Chinese Journal of Geotechnical Engineering
基金
国家自然科学基金项目(10972158)
国家自然科学基金杰出青年基金项目(51025932)
关键词
月壤
TJ-1模拟月壤
火山灰
物理力学性能
lunar regolith
TJ-1 lunar soil simulant
volcano ash
physical and mechanical property
