Plan crosscut, drift and sampling layout for exploration trenches.
坑探(穿脉/沿脉)工程量为坑道长×断面:开挖量(m³)=长度×断面,出渣量≈开挖×1.3(松方系数),支护面积≈长度×2√断面(近似周长×长)。据此编制坑探施工组织与成本。
| Item | Formula | Source-Standard |
|---|---|---|
| Cross-cut layout | Cross-cuts are driven perpendicular to strike to control thickness and grade | GB/T 13908-2020 General requirements for solid mineral exploration |
| Drift layout | Drifts follow strike to trace orebody continuity | GB/T 13908-2020 General requirements for solid mineral exploration |
| Sampling method | Channel sampling uses a fixed section and sample length by mineralization change | DZ/T 0215-2002 Specification for geological exploration of solid minerals by trenching and pitting |
坑探(穿脉/沿脉/取样)方式。免费在线工具,纯前端处理,数据不上传,保护隐私安全。