Route Survey and Soil Investigation for Construction of 220kV Transmission Line for Power Import to IOCL Digboi from 220kV Tinsukia GSS

Amount

Detailed survey along the approved route alignment approved after conducting the preliminary survey by using Modern Survey equipment like GPS/DGPS, Total stations including profiling, tower spotting and optimization of locations by using computer aided techniques like ALTM as well as other activities as detailed in the scope of work using PLS-CADD software and submission of draft report for approval. a) Drawing the route profile including Geographical features like Nalas, Rivers, Gardens, P&T Lines, Railways crossing etc., b) KMZ/KML file of approved route. c) Levelling of the profile with reference to Survey of India bench marks (MSL) d) Tower Schedule. e) Line Schedule. f) Burgie details by using Modern Survey techniques and providing GPS, Co-ordinates at each anchor points for identification of anchor locations including permanents marks like poles, telephones lines, buildings etc.,

3Providing and fixing of RCC pillar (M-20) of size 150 x 150 x 1000 mm, with approved marks including painting above the ground level and yellow lettering and marking the direction of incoming and outgoing lines are to be marked clearly on the top with red colour. If the distance between such anchors points is more than 1KM one more directional stone is to be fixed. So also, for the road crossings, railway crossing and nala crossings on both the sides.

Digitized contouring at undulated/hilly tower locations as detailed in technical specifications for assessing the quantum of benching and revetment required and submission of draft report on the work done.

Preparation of Schedules and Documents

PTCC Proposal: containing PTCC questionnaires, topo sheet extracts with marking of the proposed line, SR report, tower sketch, station single line diagram etc., (10 copies/set)

Railway Crossing proposal with drawing inclusive of graph sheets and other stationery materials, labour etc., (6 sets/per crossing)

Tree schedule containing the details like name of trees, girth size, distance from central line of the alignment, approximate height of tree etc., complete and submission of draft report for approval. The details shall be survey no. wise along the corridor. (As Per Technical Specification)

Forest proposals: inclusive of all works like fixing of stones of size 0.15 x 0.15 x 1.00m buried in the ground at every 20 mts in the centre line and both ends of the corridor, painting of each tree after chipping, writing the numbers on the tree, taking girth size of all the trees coming in the corridor at 1 Mtr height from GL, approximate height of the tree and forest clearance proposals etc., complete including submission of report/proposal in 6 sets (both Soft & Hard copies). The work shall be carried out as per requirement and as per instruction of Engineer-in-charge & as per latest circular of Forest Department.

Submission of Detailed consolidated report on the surveying work done appending all approved draft reports including all relevant information collected during survey, calibration certificates of the instruments used for the work, photos taken at site and submitting soft copies of all documents and reports in 6 sets. The detailed report shall contain following approved draft reports.  Preliminary Report  Detailed Survey Report  Soil Resistivity Report  Soil classification report with location wise.  Tree Schedule  Line Schedule  Land schedule.  Burgie details  Digitized contours  Digitized village map geo referenced and superimposed on the line corridor

Making 150mm nominal diameter bore holes at various locations in soil using suitable approved method of boring including cleaning the boreholes, collection of samples, observation of ground water level, collection of undisturbed/disturbed sample, testing of soil as per specification and back filling of bore holes on completion of work as per specification and instruction of engineer in charge of work .The scope also includes the submission of final report containing the bore log details with classification of soil, GWT on tested data, HFL collected from local area & all other as specified on technical specification for the purpose of providing foundation along with GPS co-ordinates of each boreholes.

Preparing of drawings for the remote end bay (at Tinsukia GSS, two nos.) as per technical specification.

Preparation of BOQ for transmission line as per format given and Preparation of BOQ for XLPE cable route if required.

Preparation of BOQ for the remote end bays in consultation with site In-charge.

MNEC CONSULTANTS PVT. LTD.