Characterization of the Interactions between Cutting Tools and Rock during Tunneling from a Metallurgical and Rock Physical Point of View (C05)

从冶金和岩石物理角度表征隧道开挖过程中切削刀具与岩石之间的相互作用 (C05)

• 批准号: 262407242
• 金额: --
• 依托单位: Arbeitsgruppe Experimentelle Geophysik
• 依托单位国家: 德国
• 项目类别: Collaborative Research Centres
• 财政年份: 2014
• 资助国家: 德国
• 起止时间: 2013-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/262407242?language=en
• 关键词: Characterization; Interactions; between; Cutting; Tools

Subproject C5 aims at a fundamental understanding of the tool-ground interactions during tunneling in rock, cohesive soil and mixed-ground condition. Ground excavation in those materials, as char-acterized by crack initiation and crack propagation, as well as the tribological response of the tun-neling tools (surface spalling, fatigue, abrasion) will be investigated by experimental techniques with a high resolution. This results in determining the crack propagation in rock by acoustic measur-ing methods and characterizing the material’s microstructure by electron microscopy. Technical guidelines and optimized tool concepts will be derived from the experimental and analytical find-ings.

子项目C5的目的是在岩石，粘性土和混合地面条件下隧道掘进过程中的工具-地面相互作用的基本理解。将通过高分辨率的实验技术研究这些材料中的地面开挖，其特征在于裂纹萌生和裂纹扩展，以及隧道工具的摩擦学响应（表面剥落、疲劳、磨损）。这导致了用声学测量方法确定岩石中裂纹的扩展，并用电子显微镜表征材料的微观结构。技术指南和优化工具的概念将来自实验和分析的结果。