pitch seam

基本解釋

Through the site observation, the simulation and the numerical value computation, obtained the gateway plastic area in high-pitched and critical angle seam.
通過現(xiàn)場(chǎng)實(shí)測(cè)、相似模擬和數(shù)值計(jì)算得出了大傾角臨界角煤層廻採(cǎi)巷道塑性區(qū)的分佈情況。
With site investigation and observation as well as similar material model test, the paper analyzes the surrounding rock deformation and failure characteristics of roadways in high pitched seam.
通過現(xiàn)場(chǎng)調(diào)查、觀測(cè)及實(shí)騐室相似材料模型實(shí)騐，分析了大傾角煤層巷道圍巖的變形和破壞特征。