Phase 2 Report
HRT Face-IV Excavation: The excavation of Face-IV has been successfully completed on 20 th March 2017. The conventional method of Drilling and Blasting has been adopted throughout the whole stretch. Different classes of Rock have been encountered ranging from Poor to Medium Rock, which can be summarized as shown in Table 1. RD(m) Length (m) Rock Class Remarks From To 1382.00 1390.50 8.50 Class-III With Steel Ribs 1390.5 1405.25 14.75 Class-IV Steel Ribs 1405.25 1414.25 9.00 Class-IV Without Rib 1414.25 1416.50 2.25 Class-IV Steel Ribs 1416.5 1419.5 3.00 Class-III 1419.50 1422.25 2.75 Class-III With Steel Ribs 1422.25 1428.00 5.75 C