Disaster Management And Rehabilitation Department Tender

TOPOGRAPHIC SURVEY

Total Station/Digital Level instruments shall be used as required for traversing and leveling to install/fix the BM/TBM/GPS Pillars as control points on the ground. High precision DGPS instrument shall be used in determining the geographical co-ordinate of the TBM & GPS Pillars. For land based surveys (a) horizontal accuracy of 1 cm or better (b) vertical accuracy of 1.5 cm or better (c) Topographical survey shall have to be done of the proposed site at suitable grid inverval of about(3M×3M ) by total station equipnment., a check point survey using DGPS (for horizontal accuracy) and (for vertical accuracy) shall be carried out to establish the horizontal and vertical accuracy(all the conditions mentioned in clause3.3 of RFP are inclusive in the item) and major contour interval of 5m and normall contour interval line of 1m as per slope .Mobilisation of necessary equipnment,men & materials to the project site for carrying out the Topographic survey and demobilisation of the same after completion of all the field works etc.

GEOLOGICAL INVESTIGATION