Drift drivage from R V Seam to R IV Seam in sector C to win the R IV Coal Seam at MIC Unit of Jhanjra Project Colliery

Job Description

Drivage by Drilling and Blasting of soft stone, dressing of Roof & sides, cleaning of blasted debris & disposal / stacking up to 15m for 04 nos Drift Throw = 13 m Gradient = 1 in 6 Dipping, Cross Section 1.8 x 3.8 sqm, (i)26.6 x 4.8 x 3.8= 485.18 x 02 = 970.36 cum (ii) 22.8 x 4.8 x 3.8/2 = 207.97 x02 = 415.88 cum, Gradient= 1 in 5, Dipping, Cross section 4.8 x 3.8 Sqm (i) 25.20x 4.8x 3.8 = 459.65x 02 = 919.30 cum (ii) 19.00 x 4.8 x 3.8/2 = 173.28 x 02 = 346.56 cum Total Stone Volume = 2652.10 cum

Drilling and Blasting of Shelley Coal, dressing of Roof & sides, cleaning of blasted debris & disposal / stacking up to 15m. (i) 22.8 x4.8x 3.8/2 = 207.94 x 02 = 415.88 cum (ii) 19.00 x 4.8 x 3.8/2 = 173.28 x 02 = 346.56 cum Total Shelley Coal volume = 762.44 cum

Roof Bolting / side Bolting, Wstrap, Wire netting, girder etc may be use for supporting if & when required including carrying of materials, Drilling, Grouting & Tightening of B/plates etc. (Including cost of drill rod & drill bits) = 187.2/1.2 = 156 rows x 4 no/mtr = 624 nos + 62(Side bolting) = 686 nos

Transporting of Electrical Equipment, drill panel, fan, circuit breaker etc = 18 man power ( UG Unskilled)

Average lead upto 75m for only Stone debris, Volume of loose = 2652.10 + 762.44 = 3414.54 cum x 1.3 = 4438.90/1.15 = 3860 Tubs

Total impact of GST for the purpose of CTC

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