摘要
为解决槽、井探等传统地表揭露手段自身局限性问题及减少对环境的破坏,采用浅钻揭露浅部矿体以及地表土层厚度,用于覆盖层地质填图中,控制基岩岩性和地质界线,研究地质构造,查明矿体形态,同时对岩芯(样)进行化学分析采样,构建以钻代槽勘查技术方法理论体系。该方法在云南漕涧锡矿的应用表明:通过合理布孔,能在勘探过程中主动、灵活、准确地对层状、面状地质构造进行控制,从而达到掌握层状、面状地质构造产状目的,同时对形态不规则、复杂多变地质体能够有效的控制其产出形态、空间形态。在特殊地质背景下,浅钻除了代替槽探的作用,同时取代了浅井的部分作用。
To solve the limitations of traditional surface exposure methods such as trenching,shaft-driving and reduce the damage to the environment shallow orebody and thickness of the top soil layer was exposed by shallow drilling,which can be utilized to the geological mapping of overburden,bedrock lithology and geological boundary control,geological structures research and to find out the orebody shape.Meanwhile,sampling and chemical analysis to the core（sample）were applied to build the drilling instead of trenching technology and method system.The application of this method in Caojian tin mine in Yunnan shows：stratified and planar structures can be controlled by reasonable hole pattern scheme initiatively,flexibly and accurately in the exploration,so as to master the stratified and planar geological structures and to effectively control the output and spatial forms of irregular,complex geological body at the same time.In the special geological background,shallow drilling can also replace the role of shallow shaft besides trenching.
出处
《地质学报》
EI
CAS
CSCD
北大核心
2016年第10期2919-2929,共11页
Acta Geologica Sinica
基金
中国地质调查项目"以钻代槽勘查技术研究与应用示范"(编号12120114008101)
"重点成矿带浅层钻探关键设备研发与应用示范"(编号12120113097200)和"轻便浅层取样机具与工艺方法推广"(编号12120113090900)资助成果
关键词
浅钻
槽探
以钻代槽
浅覆盖区
漕涧锡矿
shallow drilling
trenching
drilling instead of trenching
shallow overburden area
Caojian tin mine
