ANNEXURE I Site Location Map of Sri L. Srinivas
Total Page:16
File Type:pdf, Size:1020Kb
L. Srinivas Annexure of Form-1 ANNEXURE I Site Location map of Sri L. Srinivas A-1 L. Srinivas Annexure of Form-1 Quarry Lease boundary map of Sri L. Srinivas A-2 L. Srinivas Annexure of Form-1 1.0 Introduction Sri L. Srinivas proposes to conduct semi mechanized opencast method quarrying for Colour granite extraction in an area of 9.910 ha in Survey No. 39, Veerabadrapeta Village, Cheedikada Mandal, Visakhapatnam District, Andhra Pradesh. In principle of application for grant of Quarry Lease from The Director of Mines & Geology, Hyderabad vide Notice No. 48939/R1.2/2012 dated 06.6.2015 for a period of 20 years. Mining Plan has been approved by Deputy Director of Mines and Geology vide Letter No. 2850/MP-VSP/2015 dated 9.12.2015. It is proposed to conduct semi mechanized open cast method quarrying for Colour granite production of 9000 m3/annum. Capital proposed for quarrying is Rs. 59 Lakhs. 2.0 Quarry Lease Area Location Sri L. Srinivas proposes to conduct semi mechanized open cast quarrying for colour granite production of 9000 m3/Annum. The quarry lease area of 9.910 ha is located at Survey No. 39, Veerabadrapeta Village, Cheedikada Mandal, Visakhapatnam District, Andhra Pradesh. The quarry lease area falls in the Survey of India topo sheet no. 65 K/13 of Latitude 17°56'39.24"N and Longitude 82°50'23.88"E with an elevation of 133 m. The nearest village Veerabadrapeta located at a distance of 2.5 km from the QL area in SE direction. Nearest Habitation Medacherla is at a distance of 1.0km in SE direction. The nearest town and Railway station is Anakapalle located at a distance of 32 kms in SE direction. Konam - Khandevaram road is passing at a distance of 2.5km in East direction. Veerabadrapeta to Goppuru Village road is passing at a distance of 0.6km in East direction. Madugula Reserved forest is at a distance of 1.0km in NW direction. Sankaram Reserved forest is at a distance of 8.0 km in NW direction. Valabu Reserved forest is at a distance of 4.0 km in NE direction. Chidikada RF is at a distance of 3.9km in NE direction. Olab RF is at a distance of 7.2km in NE direction. Bodderu Seasonal Nala is flowing at a distance of 2.0km in East direction. Seasonal Pedda Eru is flowing at a distance of 7.9km in SW direction. There is no State/national boundary national park, wildlife/bird sanctuary and critically polluted areas within 10km radius from the quarry lease area. Details of the mine lease area are presented in table A-1. The lease area is bounded by following Geo Co- Ordinates Latitude N Longitude E 17°56'44.74" 82°50'20.36" A-3 L. Srinivas Annexure of Form-1 17°56'45.24" 82°50'24.97" 17°56'42.90" 82°50'27.56" 17°56'31.81" 82°50'30.62" 17°56'30.08" 82°50'30.19" 17°56'28.25" 82°50'28.75" 17°56'31.27" 82°50'23.17" 17°56'34.12" 82°50'21.98" 17°56'40.38" 82°50'21.12" 17°56'42.97" 82°50'21.52" Table A-1 Details of the Lease area Sy. No./ Area in Ownership State & District Mandal Village Plot No. hectares of occupancy Andhra Pradesh & Cheedikada Veerabadrapeta 39 9.910 ha Govt. Land Visakhapatnam 3.0 Geological Reserves The reserves are computed basing on the available sub-surface Lithology of the subject area and also excavations made in the existing quarries adjacent to the subject area by other lease holders. It reveals that the sheet rock is encountered right from the surface and it extended further depths. However, thickness available upto 110m level is taken for computation of proved deposit and 10m each below the proved as probable and possible deposit. The proved deposit is considered as "Reserves" and the probable & possible deposit is considered as "Resources". Further, the percentage of recovery is a major parameter in arriving mineable deposit. In this area the 25% of recovery is considered leaving remaining percentage as waste which includes soil, bands of weather rock, fault rock, joint cracks etc. Section wise calculation of black granite reserves are given in the following table. Table A-2 Reserves Estimation Category Section Influence Section Volume in Reserves Rock Wastage @ Distance in Area in m² m³ (AxB) @25% in m³ 75% in m³ m (A) (B) (AxB) 0.25 (AxB)0.75 Proved A-A’ 92 2654 244168 61042 183126 B-B’ 93 4984 463512 115878 347634 C-C’ 83 4522 375326 93832 281495 D-D' 90 2148 193320 48330 144990 E-E' 86 762 65532 16383 49149 Sub - Total 1341858 335465 1006394 Probable A-A’ 92 1076 98992 24748 74244 A-4 L. Srinivas Annexure of Form-1 B-B’ 93 1704 158472 39618 118854 C-C’ 83 1934 160522 40131 120392 D-D' 90 1766 158940 39735 119205 E-E' 86 1430 122980 30745 92235 Sub - Total 699906 174977 524930 Possible A-A’ 92 1076 98992 24748 74244 B-B’ 93 1704 158472 39618 118854 C-C’ 83 1934 160522 40131 120392 D-D' 90 1766 158940 39735 119205 E-E' 86 1430 122980 30745 92235 Sub - Total 699906 174977 524930 Grand - Total 2741670 685418 2056253 Total Reserves of Colour Granite @ 25 % recovery = 685418 m3 The reserves are blocked by the 7.5 barrier zone (622m x = 6988 m3 45m (average thickness) x 25% recovery factor) From pit slopes, the reserves blocked are calculated @ = 700 m3 10% of the reserves blocked in buffer zone Total Non-mineable reserves = 6988 + 7000 = 7698 m3 Total reserves assessed - Non-mineable reserves = 685418- 7698 = 677720 m3 4.0 Mineable reserves and life of the mine Total mineable reserves of 677720 m3 are available in this QL area. The production is proposed to obtain 9000 m3 per year. At this rate of production, the expected life of the mine is calculated as below. Life of the quarry: Mineable reserves/annual production = 677720 m3/9000 m3 = 75.30 years or say 75 years. 5.0 Mining Method The mining operations are carried out by opencast semi mechanization method by developing multiple benches of 5-6 m height. To minimize the cost of production and to achieve annual target production. The quarrying operation are planned to carry out partly manually and partly deploying machinery. 5.1 Separation of Large Primary Blocks of Mother Rock The primary cuts i.e. the lateral and horizontal cuts by diamond wire saw cuts through slaughter holes (A 50 m wire saw run gets around 600m2 Cut) and if situation permits by use A-5 L. Srinivas Annexure of Form-1 of detonating cords a close spaced blast is performed (To leverage natural Joint). 10 m in length and 8 m in width and 6 m height Sizes are produced. The wire for Granite is made of the steel wire, sintered beds with plastics injected on the steel wire and between diamond beds in order to safeguard the steel wire from the abrasive components of granite (i.e Quartz, Feldspar, etc). The stationary diamond wire machines were born for three main purposes: Squaring and dressing of irregularly shaped blocks, preparing them for final processing in slabs and tiles. Making thickness of stone of certain width in order to utilize the best gang saws and blocks cutter having maximum productions and profit from the processing machines. Perform automatic cuts of block into slabs of different thickness. The block can so be programmed to have a certain number of slabs each of prescribed thickness. 5.2 Sub Division of Large Primary Block Into Secondary Block (secondary Cuts) 1. Once the primary blocks are dislodged from sheet rock depending up on the dislodged material secondary blocks are cut, fractures, block lines and penetrative cracks are carefully trimmed and removed by this way. 2. The commercial blocks will be trimmed so as that the sites form right angles to each other 3. The size of blocks could be formed from the ROM of this property will be in the following dimensional ranges. Gang saw sizes Cutter sizes Length : 190 to 380 cm 90 to 180 cm Width : 140 to 200 cm 60 to 90 cm Height : 120 to 170 cm 40 to 70 cm Production of commercial blocks To give a regular shape, the removed blocks are dressed with cutting and polishing face, and the other direction perpendicular to it. For this purpose also Jack Hammer drills and feather wedges are widely used. Below sizes were produced in the ratio of 1:3 and also depending upon the recovery. A-6 L. Srinivas Annexure of Form-1 List of Machinery S. No. Type of Machinery Unit 01 Excavator 2 02 Tippers 2 03 Jack Hammer Drills 6 04 Air Compressors 200cfm 2 05 Water Pump – 5 HP 1 06 Tam rock 1 07 Wire-saw cutting machines 2 08 Slaughter 1 Minor Tools: Crowbars, heavy duty sledge hammers, pick axes, Spades etc., will be used. 6.0 Year wise Development and production for five years During five year quarrying operations a volume of 369500 m3 rock mass will be excavated out of which 55425 m3 dimensional granite will be recovered. A total waste of 314075 m3 has to be handled including the additional waste in the form of overburden soil. Year wise production and waste generation details are presented in table A-3 Table A-3 Year wise Granite Production and Waste generation S.