It is important to have reliable prediction methods for mechanical excavation tools. I.e. when pre-damage methods like high-power microwaves, lasers, water jets or others are applied theoretical investigations on the possible improvements are inevitable. Montanuniversitaet Leoben performed two different studies on the subject (one for roadheaders, one for full-face tunnel boring machines). See the abstracts … Continue reading How to improve mechanical hard rock excavation?