Reliance Jio Infocomm Limited 4G OFC Network DGPS Survey Report
Total Page:16
File Type:pdf, Size:1020Kb
Reliance Jio Infocomm Limited 4G OFC Network DGPS Survey report for Forest Diversion of Proposed 4G OFC Route from Tongpal to Konta with Route Length 129.35 Km. in District - Sukma (C.G.) . Geotrax 2016 Page 1 of 44 Table of Contents 1. Introduction and Background ...................................................................... 3 1.1 Background ...................................................................................... 3 1.2 Location and Communication ............................................................... 3 1.3 Objective ......................................................................................... 4 1.4 Geotrax Empanelment Certificate in Chhattisgarh ................................... 5 2. Scope of Work .......................................................................................... 8 3. Deliverables ............................................................................................. 8 4. Brief description of the Technical approach.................................................... 9 4.1 Input Data ........................................................................................ 9 4.2 GIS Data Preparation ......................................................................... 9 4.3 Establishment of Primary Control Point (PCP) ....................................... 10 4.4 Establishment of Temporary Benchmarks (TBM) ................................... 10 4.5 DGPS Survey Procedure .................................................................... 11 4.6 Creation of Vector Layers.................................................................. 12 4.7 Specification of DGPS Equipment........................................................ 12 5. Results .................................................................................................. 15 6. Background of Organization ...................................................................... 18 6.1 Company Profile: Geotrax ................................................................. 18 7. Annexure ............................................................................................... 20 7.1 Annexure – 1: PCP Observation Processing Report ................................ 20 7.2 Annexure – 2: DGPS Surveyed coordinates of Forest Patches .................. 27 7.3 Annexure – 3: Geo-Referenced Maps of the Proposed Route ................... 43 7.3.1 Geo-referenced Forest Map showing Proposed 4G OFC Route ............... 43 7.3.2 Geo-referenced SOI Map showing Proposed 4G OFC Route .................. 44 Geotrax 2016 Page 2 of 44 1. Introduction and Background PROJECT 4G OPTICAL FIBER CABLE 1.1 Background Reliance Jio Infocomm Limitedis setting up 4G Optical Fiber Cable network across the country. In the state of Chhattisgarh, the company plans to set up the telecom network (including laying of OFC cable) along the NHAI/PWD Road corridor. Reliance Jio Infocomm is granted license by Ministry of Communications & IT, Dept. of Telecommunications, and Govt. Of India, to establish Optical Fiber Cable network under the license number 370/2011 dated. 23.06.2011 issued to M/S Infotel Broadband Services Limited (company name changed to Reliance Jio Infocomm Limited on 22.01.2013). The OFC Cable is laid under the ground at approx. depth of 1.65m and the trench width is 0.5m. The cable trench line on National Highways is approx. at a distance of 14.5m from the road centerline and for State/District highways it is approx. 7m from the road centerline. 1.2 Location and Communication The proposed OFC Cable route from Tongpal to Konta is on the National Highway corridor NH-221. The route length is approx. 129.35 km. The OFC cable route falls in Chhindgarh, Sukma and Konta tehsil in district Sukma. The survey site is located in four ranges of Tongpal, Sukma, Dornapal and Konta in Sukma Forest Division. The cable route’s proposed starting point is Tongpal Latitude 18°48’..31.83"N and Longitude 81°44'18.67" E and the end location is Konta at Latitude 17°48'20.48"N and Longitude 81°23'3.41"E. The OFC Cable route is covered under Survey of India Toposheet 65F/05, 65F/08, 65F/10, 65F/11, 65F/11 and 65F/14 on RF 1:50000. Geotrax 2016 Page 3 of 44 Not to Scale Fig-1: Tongpal to Konta 4G OFC Cable Proposed Route on Satellite Imagery 1.3 Objective As per directives of Ministry of Environment & Forests (MoEF) dated 8th July 2011; all applications for Forest Diversion, under Forest Conservation Act, 1980 must be accompanied with Geo referenced shape file, showing the boundary of the proposed area (both soft copy and hard copy maps), prepared using Differential GPS (DGPS) and the same should be uploaded to MoEF website along with the online application. To meet this requirement of MoEF, Reliance Jio Infocomm Limited, entrusted the DGPS survey work to M/s Geotrax International Services, Raipur, which is an empanelled agency of Directorate of Geology and Mines, Chhattisgarh (Ref. Circular No. F-7-14/2013/12, dated. 10.11.2014). Geotrax 2016 Page 4 of 44 1.4 Geotrax Empanelment Certificate in Chhattisgarh Geotrax 2016 Page 5 of 44 Geotrax 2016 Page 6 of 44 Geotrax 2016 Page 7 of 44 2. Scope of Work 1. Establishment of one base station with 72 Hours observationand secondary control points at every 10km along the proposed route. 2. DGPS Survey for collection of ground coordinates along the OFCCable trench at every 50m interval and/or at every turn/bend along the porposed trench. The DGPS data is collected at forest patches only. 3. Data processing and Interpretation a. Geo-referencing of SOI Toposheet (1:50000), Forest Stock map (1:15000, if available) and satellite imagery b. Creation of OFC Cable trench boundary vector map using the DGPS Surveyed data c. Superimposition of cable route layer on Georeferencedforest maps, SOI Toposheet and Satellite imagery. d. Computation of Forest area proposed for diversion. It includes Reserved/Protected Forest & Revenue Forest. e. Preparation of Geo-referenced forest map at 1:15000 scale, and SOI Toposheet at 1:50000 scale. f. Preparation of DGPS survey report along with soft copy of – maps in shapefile format and kml file 4. Printing of report and Geo-referenced maps and Technical compliance. 3. Deliverables The deliverables envisaged for the assignment are described below 1. Post processed DGPS observations data as well as raw data in RINEX format. 2. DGPS Reports - Base line & network adjustment report for the primary and Secondary Control Points. 3. Geo-referenced SOI maps & forest block mapsbased on DGPS observations – Hard and Soft Copy (SHP and KML formats). 4. Proposed Forest Diversion area statement as per DGPS Survey 5. DGPS Survey and mapping report. Geotrax 2016 Page 8 of 44 4. Brief description of the Technical approach 4.1 Input Data The proposed 4G Cable Route plan is shown on the ground by the engineer/ Vendor of Reliance Jio Infocomm Ltd (RJIL). The Forest & SOI maps required for geo-referencing were provided by Reliance Jio Infocomm Limited. It is proposed that the cable is laid within the ROW of the NHAI/PWD road corridor. The cable trench is laid at a depth of 1.65m below ground and the trench width is 0.5m. The revenue village maps were collected from NIC online website (http://cg.nic.in/bhunaksha/). The revenue forest information& details are collected from the District Revenue department and were provided by RJIL. 4.2 GIS Data Preparation Based on the input data and information provided, the DGPS base station - Primary and Temporary Benchmarks Control Points (PCP and TBM) in the project area are planned. One PCP with 72 hours observation is planned and established on the roof top of the house of forest colony Jagdalpur. Not to Scale Fig-2: Satellite Image showing the location of the Primary Control Point Geotrax 2016 Page 9 of 44 4.3 Establishment of Primary Control Point (PCP) The Primary Control Point (PCP) with 72 hours of DGPS Observation was established as the DGPS base station. The PCP was established on the roof top of the house of forest colony Jagdalpur. As per Survey of India (SOI) Guideline, the PCP is to be fixed through continuous observation for 72 hours duration. The 72 hours of observation was carried out using DGPS from 8thMarch 2016 to 11thMarch 2016. The observed data was processed with reference to the data of International GNSS Service (IGS) stations as per SOI guideline (IGS processed report is enclosed as Annexure-1). The coordinate of the PCP is as follows: Station Latitude (d:m:s) Longitude (d:m:s) Ellipsoidal Height (m) PCP Base @ Forest 19°04'34.70024"N 082°02'03.86504"E 491.345 Colony, Jagdalpur Fig-3: Image showing the establishment of the Primary Control Point 4.4 Establishment of Temporary Benchmarks (TBM) The Temporary Control Points are post-processed using the Jagdalpur PCP. The coordinate of the TBM is as follows: S. No Point ID Latitude (d:m:s) Longitude (d:m:s) Ellipsoid Height (m) 13 TBM-JK-12 18°38'26.27834"N 81°44'15.07167"E 214.663 14 TBM-JK-13 18°36'2.65615"N 81°42'25.22325"E 197.313 15 TBM JK -14 18°34'50.48149"N 81°43'38.71167"E 168.472 16 TBM-JK-15 18°32'24.31854"N 81°44'52.62343"E 157.881 Geotrax 2016 Page 10 of 44 17 TBM-JK-16 18°29'53.21627"N 81°43'46.28691"E 153.783 18 TBM-JK-17 18°28'21.29747"N 81°41'44.17382"E 149.941 19 TBM-JK-18 18°26'4.61245"N 81°40'37.98543"E 135.567 20 TBM-JK19 18°22'55.88244"N 81°38'40.40861"E 151.796 21 TBM-JK20 18°20'15.22003"N 81°36'32.21844"E 121.162 22 TBM-JK21 18°17'27.89831"N 81°33'44.74770"E 91.245 23 TBM-JK22 18°16'0.06901"N 81°31'6.39489"E 83.377 24 TBM-JK23 18°12'25.90885"N 81°30'30.73643"E 68.742 25 TBM-JK24 18°9'35.59874"N 81°30'41.77561"E 48.676 26 TBM-JK25 18°6'33.33622"N 81°29'42.45965"E 44.097 27 TBM-JK26 18°3'56.89436"N 81°28'29.91651"E 25.793 28 TBM-JK27 18°1'17.35821"N 81°27'38.36449"E 16.893 29 TBM-JK28 17°58'43.97519"N 81°26'5.40397"E 10.122 30 TBM-JK29 17°55'50.11391"N 81°25'11.67067"E -2.872 31 TBM-JK30 17°52'47.04676"N 81°23'28.11874"E -21.07 32 TBM-JK31 17°49'33.93451"N 81°22'48.10390"E -24.058 33 TBM-JK32 18°59'49.02429"N 81°46'32.01271"E 580.778 34 TBM-JK34 18°56'1.31898"N 81°49'2.64946"E 593.439 35 TBM-JK35 18°53'58.37873"N 81°50'45.87888"E 566.736 4.5 DGPS Survey Procedure DGPS survey was carried out using a pair of DGPS instrument.