Proposed chart for the selection of impact hammer

AKSOY C. O.

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, cilt.68, ss.120-127, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 68
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1016/j.ijrmms.2014.02.013
  • Dergi Adı: INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.120-127
  • Anahtar Kelimeler: Rock Mass Breakability Chart, Rock Structure Index, Impact hammer, Rock excavation, GEOLOGICAL STRENGTH INDEX, PERFORMANCE, PREDICTION
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

Twenty-five different slope excavation and 19 different tunnel excavation observations, measurements and field studies were performed in order to create a Rock Mass Breakability Chart (RMBC) to select an excavation machine. These fields comprise different rock mass conditions. This developed chart consists of Rock Structure Index (RSI), which was developed in this research and rock mass definition formed in this study. RSI includes test results of Impact Hammer System (IHS), which was designed in this study to determine the breakage energy of rocks with impact, and also rock strength, the structure of rock mass and discontinuity properties. In regards to the rock mass classification, the definition that was already suggested by lSRM was used Impact hammers used in different excavation fields were compared by using RMBC. It was concluded that the performance of the proposed chart is satisfactory. (C) 2014 Elsevier Ltd. All rights reserved