bench mining 中文意思是什麼
bench mining
解釋
階梯式開采-
Optimal selection of dragline amp; comprehensive analyzing of overcasting bench factors for open cast mining
露天礦拉斗鏟規格優選與臺階要素綜合分析 -
The results show that distinct " bench " distribution rule takes on for the subsidence and distortion of bench - shape slope surface ; the movement range of bench - shape slope surface is smaller but its distortion is larger than those of flat surface and concentrated distortion occurs at every bench plan ; the surface horizontal distortion of bench - shape slope is still pressed in gob centre and tensioned in both sides of gob ; space - time effect should be taken into account for the stability of bench - shape slope influenced by underground mining
結果表明：露天煤礦臺階狀邊坡體的采動沉陷規律表現出很明顯的「臺階」分佈特點；臺階狀邊坡地表的移動范圍比平地地表要小，但變形卻更劇烈，且在各臺階平面處形成變形集中；臺階狀邊坡地表的水平變形仍然呈現出采空區中間受壓，兩端受拉的特點；臺階狀邊坡在地下開采擾動下的穩定性應考慮采空區的時空效應。 -
By using subarea - subsection mining method, multi - channel layout program, heidaigou open - pit coal mine has overcomed the technological continuity problems appearing in bench combination and has fully improved the capacity of existing equipments, so that the transportation distance has been reduced and enormous economic benefits have been gained
在此過程中，黑岱溝露天煤礦通過分區分段開采、多通道布置等方案，克服了並段臺階工藝接續過程中出現的問題，最大限度的增加現有設備生產能力，減少運距，創造了巨大的經濟效益。 -
Cutting and preparation of the auxiliary sections of thick ore body in high bench mining
高階段厚礦體輔助剖面的切制
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