Ara Opencast Project (1.0 Mty)
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Draft SCIENTIFIC STUDY OF SOIL EROSION AND PREVENTIVE MEASURES FOR ARA OPENCAST PROJECT (1.0 MTY) OF CENTRAL COALFIELDS LIMITED DUNI N SEPARATOR/DIVIDER BONGAHARA ARA BASTI BAGLATA TOLA CHOWTHA NALA PROP. NO-3 QRY. SEPARATOR/DIVIDER PROP. NO-2 QRY. GARLAND DRAIN SARUBERA GRAVE- GARLAND DRAIN YARD PLANTED DUMP POKHARIA TOLA KAIRAKOCHA STOCKYARD 7 UMP VD DUMARBERA VILL. OB D ATNA PROP. PLANTED DIESEL NO-1 K WATER DUMP TAN AGARIA TOLA EXCA. QRY. PROJECT MPER OFFICE DU STORE SHED DISPEN- /2 SARY NO 6RY EXISTING 16/B QUARRY AR SUB- QU STATION VOID V7 E MAGAZIN ER CM E FEED LEASEHOLD BOUNDARY OFFIC BREAKER BHADAWA STADIUM GIDDI-KEDLA ROAD MURPA BAL VIDYA ARA COLONY A ROAD SCHOOL I.W.S.P GIDDI-KEDL W.BRIDGE D A V SCHOOL PROJ. ARA OCP PLATE-IV IDDI-KEDLA ROADKUJU G ILTAF HUSSAIN Ch.D/man SUB:- P.TOPNO SE(E&M) SARUBERA LANDUSE PLAN. PUSHKAR SE(ENV.) COLONY DILIP RAI HOD(C) SCALE:- NTS V.K.RAI R.D RI.III, C M P D I GONDWANA PLACE (RANCHI) January, 2011 SLOPE STABILITY CELL ENVIRONMENT DIVISION CENTRAL MINE PLANNING & DESIGN INSTITUTE LTD. (A Subsidiary of Coal India Ltd.) GONDWANA PLACE RANCHI – 834031 Draft SCINTIFIC STUDY OF SOIL EROSION AND PREVENTIVE MEASURES FOR ARA OPENCAST PROJECT (1.0 MTY) OF CENTRAL COALFIELDS LIMITED January, 2011 SLOPE STABILITY CELL ENVIRONMENT DIVISION CENTRAL MINE PLANNING & DESIGN INSTITUTE LTD. (A Subsidiary of Coal India Ltd.) GONDWANA PLACE RANCHI – 834031 INDEX Chapter Name of Chapter Page No 1 Background 1 - 3 2 Project Profile 4 - 10 3 Soil Erosion 11 - 31 4 Control Measures 32- 43 5 Cost & conclusion 44- 47 SCIENTIFIC STUDY OF SOIL EROSION AND PREVENTIVE MEASURES FOR ARA OPENCAST PROJECT (1.0 MTY) OF CENTRAL COALFIELDS LIMITED DUNI N SEPARATOR/DIVIDER BONGAHARA ARA BASTI BAGLATA TOLA CHOWTHA NALA PROP. NO-3 QRY. SEPARATOR/DIVIDER PROP. NO-2 QRY. GARLAND DRAIN SARUBERA GRAVE- GARLAND DRAIN YARD PLANTED DUMP POKHARIA TOLA KAIRAKOCHA STOCKYARD 7 UMP VD DUMARBERA VILL. OB D ATNA PROP. PLANTED DIESEL NO-1 K WATER DUMP TAN AGARIA TOLA EXCA. QRY. PROJECT MPER OFFICE DU STORE SHED DISPEN- /2 SARY NO 6RY EXISTING 16/B QUARRY AR SUB- QU STATION VOID V7 E MAGAZIN ER CM E FEED LEASEHOLD BOUNDARY OFFIC BREAKER BHADAWA STADIUM GIDDI-KEDLA ROAD MURPA BAL VIDYA ARA COLONY A ROAD SCHOOL I.W.S.P GIDDI-KEDL W.BRIDGE D A V SCHOOL PROJ. ARA OCP PLATE-IV IDDI-KEDLA ROADKUJU G ILTAF HUSSAIN Ch.D/man SUB:- P.TOPNO SE(E&M) SARUBERA LANDUSE PLAN. PUSHKAR SE(ENV.) COLONY DILIP RAI HOD(C) SCALE:- NTS V.K.RAI R.D RI.III, C M P D I GONDWANA PLACE (RANCHI) JUNE, 2011 SLOPE STABILITY CELL ENVIRONMENT DIVISION CENTRAL MINE PLANNING & DESIGN INSTITUTE LTD. (A Subsidiary of Coal India Ltd.) GONDWANA PLACE RANCHI – 834031 SCINTIFIC STUDY OF SOIL EROSION AND PREVENTIVE MEASURES FOR ARA OPENCAST PROJECT (1.0 MTY) OF CENTRAL COALFIELDS LIMITED JUNE, 2011 SLOPE STABILITY CELL ENVIRONMENT DIVISION CENTRAL MINE PLANNING & DESIGN INSTITUTE LTD. (A Subsidiary of Coal India Ltd.) GONDWANA PLACE RANCHI – 834031 CMPDI Prevention of soil erosion CHAPTER - I Background 1.0 Purpose CCL had submitted a proposal to concern department for the release of 166.90 Ha. forest land for Ara opencast project to MoEF, GoI through DFO, East Division, Hazaribagh. Stage – II clearance has been accorded by MoEF vide letters no. 8-65/2003-FC dated 13.08.2008 of Sr. Assistant Inspector General of forest MoEF, Govt. of India with certain conditions. As per clause no. 3 (I, II, III, IV & V) & 11 of the said letter the user agency has to comply with;- Preparation of a scheme for the proper mitigation measures to minimize soil erosion and choking of stream and shall be implemented; Planting of adequate draught hardy plant species and sowing of seeds to arrest soil erosion; The area shall be reclaimed keeping in view of the international practice or stablising the dump grading/benching so that the angle of repose (normally less than 280 at any given point) are maintained; Top soil management plan should be strictly adhered; Study on soil erosion/soil flow from the overburden area with help of GIS in consultation of forest department. So, CCL has requested CMPDI (HQ) to prepare the necessary scheme for fulfillment of the above condition vide their letter No. CGM (P&P) 09/815–18 dated 27.10.2009. Accordingly, CMPDI (HQ) has taken up job with job no.090309111. ARA OCP 1 Job no. --090309111 CMPDI Prevention of soil erosion 1.1 Consultation with forest officials A formal meeting between CCL (CGM, E&F and his team) and PCCF cum executive director of forest department, Jharkhand has been held on 7.12.09 in the office of later to discuss for the fulfillment of the compliance lay down by Sr. Assistance Inspector General of Forest vide their letter no. F.No. 8-65/2003-FC dated 13.08.2008 regarding the release of 166.9 Ha. of forest land for Ara Opencast Project. On the basis of above meeting, forest department has given guidelines for the fulfillment of the condition set by Assistance Inspector General of Forest (MoEF). 1.2 Scope of Work:- Study of soil erosion from the overburden area with the help of GIS and preparation of a detailed scheme with sketches and drawings along with cost estimate to minimize/prevent the water pollution, soil erosion arises due to surface runoff, and choking of streams in and around the mine lease area of the Ara OCP project. 1.3. Objective of the scheme- Prevention of Chutha Nala and their tributaries from being chocked and soiled along with protection of the surrounding land areas from being eroded due to high velocity of surface run-off, diminish the fertility of the land due to soil erosion owing to the on going Ara OCP project for the benefit of the local habitants, animals and plants to get good quality of land and clean water in sufficient quantity. It will also help to compensate the ecological balance and will take care of the natural ecosystem. 1.4 Project History :- The mining operation prior to Nationalisation in Ara OCP was fully concentrated on outcrops. There were a number of small quarries and a few underground workings through Inclines. ARA OCP 2 Job no. --090309111 CMPDI Prevention of soil erosion A number of subsided areas also exist over the Ara Block due to previous underground workings. The mining has been done in seams VA, V, IV and III. Presently Ara OCP has been running on the basis of different schemes prepared from time to time. A Feasibility Report for Ara (Re-organisation) Project, Phase-I was prepared in November, 1978. The report envisaged coal production @ 0.76 MTPA and 0.24 MTPA from opencast and underground mining methods respectively. The total mineable reserve for Phase-I by opencast and underground mining methods was estimated to be 19.64 MT and 7.39 MT respectively. The mineable reserve for Phase-II by underground mining method was estimated to be 55.94 MT. The life of the mine was estimated to be 80 years (30 years for Phase-I & 50 years for Phase-II). Considering the mining conditions of (a) thickness of coal seams varying from fairly thin to moderately thick (b) faulted property (c) high gradient of seam floor, horizontal slicing method with Shovel Dumper Technology is proposed to produce coal from Quarry-1, Quarry-2 & Quarry-3. ARA OCP 3 Job no. --090309111 CMPDI Prevention of soil erosion CHAPTER – II Project Profile 2.0 General The Ara Geological Block is located in Kuju area of of Central Coalfields Limited, which is situated in Ramgarh District of Jharkhand State. A Feasibility Report for Ara (Re-organisation) Project, Phase-I was prepared in November, 1978. The report had envisaged coal production @ 0.76 MTPA and 0.24 MTPA from opencast and underground mining methods respectively. 2.1 Location:- The Project falls in Ramgarh district of Jharkhand state. a) Latitudes - 230 41’ 24’’ N to 230 43’ 48’’ N b) Longitudes - 850 31’ 33’’ E to 850 34’ 24’’ E c) Topo sheet No.– 73 E/6 and 73 E/10 on 1:5000 scales. d) Company – C.C.L e) District – Ramgarh f) State – Jharkhand. 2.1 Surface Communication: - 2.1.1 Road - The project is connected at 4 km to Naya More on NH–33 by Coal Trunk Road. The nearest town is Kuju on the NH-33 about 5 km from the project 2.1.2 Railways- Nearest railway stations is Ranchi Road Rly. Stn. 7.0km away (on N.H.-33,near Ramgarh). This railway station is situated on Gomoh – Barkakna loop line of Eastern Rly.) 2.1.3 Airways- Nearest Air service is available from Ranchi that is 70Km. away from the project. 2.1.4 Distance of important place a) G.M.office, Kuju 6.0 KM ARA OCP 4 Job no. --090309111 CMPDI Prevention of soil erosion b) Ranchi - -- 65 km. (Takes 2.0hr. by road) c) Hazaribagh -- 45 km (1.5 hr. by road) 2.2 Topography : - Ara Colliery occupying the South-Central part of the Coalfield, represents undulating topography with occasional Sandstone and burnt rock ridges, mounds and intervening depressions occupied by paddy fields. The Southern and Central part of Ara Colliery is uneven, rugged and mostly hilly while the area in North and West is generally represented by low lands and paddy fields. The maximum and minimum elevation is 410.88 m and 327.59 m respectively above the mean sea level.