Disc cutters are the main working tools of full-face hard rock tunnel boring machine (TBM). They are in direct contact with rocks, sustaining enormous loads and vibrations in practical constructions. Therefore, The wear of the disc cutters is very severe and would cause huge economic costs. In this study, the abrasive wear performance of disc cutters’ material (H13 steel) was analyzed by pin-on-disc wear tests in contact with three types of rocks (sandstone, granite and gneiss) under different loads (100 N and 200 N). The friction coefficient was recorded during the tests. The wear rate of H13 steel and maximum wear depth of rocks were calculated and measured. The worn surfaces of H13 steel were observed. Results showed that the friction coefficient, the wear rate of H13 steel and the maximum wear depth of rocks under the load of 100 N was lower than those of 200 N. The main wear mechanism of H13 steel in contact with sandstone was three-body wear, while the main wear mechanism ...

中文翻译：

---

H13钢在不同岩石类型上的磨损性能和机理

圆盘切刀是全断面硬岩隧道掘进机（TBM）的主要工作工具。它们直接与岩石接触，在实际施工中承受巨大的载荷和振动。因此，圆盘刀的磨损非常严重，并且会导致巨大的经济成本。在这项研究中，通过销钉-盘式磨损试验分析了圆盘铣刀材料（H13钢）在三种载荷（100 N和200 N）下与三种类型的岩石（砂岩，花岗岩和片麻岩）的磨蚀磨损性能。 ）。在测试期间记录摩擦系数。计算并测量了H13钢的磨损率和岩石的最大磨损深度。观察到H13钢的磨损表面。结果表明，摩擦系数