The district administration, despite seeking help from the Army Engineering team, has failed to rescue the two labourers trapped inside the stone quarry near Bariput since more than a week.
Meanwhile, a second team of the Army engineering battalion that reached the mishap site on Thursday conducted minor blasts at the quarry to clear the debris on Friday.
The first team from Ranchi had arrived on Wednesday after efforts by ODRAF, Fire Services personnel and NDRF teams to rescue the two trapped JCB operators failed.
Meanwhile, the administration has imposed Section 144 within one km radius of the stone quarry in order to prevent any collateral damage. The administration has also built a temporary helipad at the mishap site for easy movement of the Army personnel, reports said.
Sources said the administration first priority is to rescue the two trapped workers.
Notably on May 31, the two workers, Ghanashyam Guru and Sanjay Dash got trapped after the hill suddenly caved in while they were excavating boulders.