thin-out of coal seam

Coordination of Full-mechanized Mining Equipments and Powered Support Design for Extremely Thin Coal Seam with Large Angle

大倾角极薄煤层综采设备配套及液压支架设计

The Optimum Design for the Cutter Retarder of the BM-100 Thin Coal-seam Coal-cutter

BM&100型薄煤层采煤机截割部减速箱的优化设计

Within the north structure block, with the influence of the thin seam thickness, the thickness of the structure coal seam was relevantly thin.

在北部构造区内受煤层厚度较薄的影响，构造煤厚度相对较薄。

Above mentioned decollement structure has obvious impact to coal seam structure and coal thickness, destructed primary textures of coal seams and formed different forms of coal tectonite, and redistributed coal seam thickness, a NE-NEE oriented thick and thin alternative zone thus formed.

滑脱构造对煤层结构和煤厚变化具有明显的影响，它使煤层原生结构遭受破坏形成各种构造煤，并导致煤层厚度重新分配，形成NE&NNE向展布的厚、薄煤带。

Exploring the new Unmanned Coal Face Mining Approach of Extremely Thin Coal Seam to Improve Resources Recovery Ratio

极薄煤层开采新途径的研究与实践