摘要
针对采动过程中上覆岩层的破坏特性,在数值模拟中对厚黄土层采用莫尔-库仑准则,对煤岩体采用虎克-布朗准则理论模型,模拟计算雷坡村庄下开采煤层地表移动变形。根据计算结果,利用FLAC3D自定义函数功能,从煤层顶板的岩层逐层向上,编程求取主断面上各岩层的下沉值,利用GRAPHER软件生成直观图形,从直观图形可以判断出主(亚)关键层的层位。
In view of the damage property of overburden stratum during mining, simulated calculation was made for the surface movement and deformation while undermining Leipo village coal mine, using Mohr-coulomb criterion for thick loess layer and Hoek-Brown criterion for the coal rock in the numerical simulation（FLAC^3D）. According to the calculation results, the settlement of each stratum along the main section was figured out layer by layer up from the roof stratum, by using FLAC^3D defined function. A visual figure was produced with software of GRAPHER, and primary and inferior key strata can be estimated from the visual figure.
出处
《矿冶工程》
CAS
CSCD
北大核心
2008年第6期8-10,14,共4页
Mining and Metallurgical Engineering
关键词
煤层开采
主关键层
亚关键层
数值模拟
计算准则
采动损害
开采沉陷
FLAC^3D
primary key strata
primary key strata
inferior key strata
numerical simulation
calculation criterion
mining-disturbed damage
mining subsidence
FLAC^3D
