Metallurgical Influences on Stress Corrosion Cracking (SCC) of Rock Bolts

本项目旨在了解岩石螺栓应力腐蚀破裂(SCC)的冶金机理。锚杆是地下矿山中最有效的顶板支撑手段，因此，锚杆在世界各地的采矿业中得到了广泛的应用。由应力腐蚀引起的锚杆破坏具有重要的安全和经济意义。随之而来的岩石坠落有可能杀死或击毙任何被困在下面的人。如果一个典型的澳大利亚煤矿的长壁作业导致停产，损失的产量通常在每天100万美元左右。

This project seeks to understand the metallurgy of stress corrosion cracking (SCC) of rock bolts. Rock bolts are the most effective means of roof support in underground mines and, as a consequence, rock bolts are widely used in the mining industry worldwide. Failure of rock bolts by SCC has significant safety and economic implications. The consequent rock falls have the potential to kill or main any person caught underneath. If a stoppage is caused of the long wall operation in a typical Australian colliery, the typical value of the lost production is of the order of a million dollars a day.