论文部分内容阅读
某金铜矿区坑道施工简介福建省地质坑探队廖庆椿福建某金铜矿区坑探施工从１９８５年开始，９年共施工４个硐口，其坑道断面为２ｍ×１．８ｍ，完成坑道工作量８９７４ｍ．穿过的岩层主要有花岗岩和次火山岩。下部铜矿岩性以黄铁矿化、明矾石化、硅化中细粒花岗岩为主，夹...
A gold and copper mining tunnel construction Brief introduction Fujian Province geological pit exploration team Liao Qingchun Fujian Fujian a gold and copper mining excavation construction since 1985, 9 years a total of four construction of the mouth, the tunnel section of 2m × 1.8m, complete tunnel The workload of 8974m. The strata that pass through are mainly granite and subvolcanic rocks. The lower part of the copper ore is pyrite mineralization, alum petrification, silicification in fine granite-based, folder ...