ADDN ALTN TO WATER FILTRATION PLANT IN PUMP HOUSE AT ROWRIAH LICHUBARI AND MARIANI AT JORHAT MIL STN UNDER GE JORHAT

Mobilization/ Transportation, erection of T & P and dismantling of all reburied equipment at proposed site including deployment of suitable personels for effective soil investigation as directed. (A=1, B=0)

(i) Up to a depth of 15.00m or refusal (A=6, B=0)

(ii) Plate Load Test (A=6, B=0)

Carrying out the following laboratory tests on the soil samples as per IS codes on each Bore hole. a)(i) Sieve analysis and Hydrometer tests of identification and classification of soil bases on properties and grain size. (ii) Specific gravity of the soil. (iii) Studies of settlement characteristics of soil based on consolidation tests and liquid and plastic limit. (iv) Stratification of soil for entire depth of bore log including ground water table location and other properties. Evaluation of shear parameters of undisturbed soil samples by adopting direct shear test. (v) Natural moisture content (NMC), void ratio and porosity, Tri- axial and direct shear test and confined compression test of undisturbed samples and bulk,submerged and dry density of the soil. b)Compilation of SSI Report as per IS (viz. Filed and laboratory test results, Preparation of reports, Recommendation for different type of foundations, water table) with clear unambiguous recommendations for types of foundation for all structures with bearing capacity/pile capacities. The recommendations will be duly vetted by the vetting agency as per Notes. (A=1, B=0)

Submission of all report booklets 05 (Five) copies with CD 01 (One) copy duly indicating the following:- (i) Evaluation of safe bearing capacity of the soil with respect to shear failure test and permissible settlement (Total and differential) alongwith recommendation about type of foundation and minimum depth of foundation to be adopted. (ii) Evaluation of liquefaction potential. (iii) Evaluation of K-value. (iv) Specific suggestion if any soil treatment if required below foundation/ ground floor/ roads and type of treatment to be carried out. (A=1, B=0)

Design & construction of sedimentation tank of 7.0 x 3.7 x 3.5 m height with additional 0.3 m free board with one parallel to width baffle wall so that clear water to be collected from top of the tank, the construction shall be in RCC M30 construction complete with reinforcement, form work, plaster, outlet flange and drain flange for sediments etc. complete in all respect as directed complete all as specified and directed, Note: (i) Min 5 years guarantee on complete assembly including food grade epoxy coated paint to be submitted by the contractor. Note for Sr. Item No.5: (i) The design shall confirm to latest IS:1893, IS 4326, IS:13920, IS 800 SP 34, IS-456 and other relevant codes. (ii) The structure falls in Zone V. (iii) Structural analysis & design shall be done on latest version of STAAD. (iv) Structural design shall be got vetted from any IIT/NIT/ Govt Engineer college. (v) Contractor shall discuss the concept design with SO-I (Design)/Director (Design) of HQ CESZ before finalising the Str design. (vi) The RCC Sump shall be M-30 as per design consideration. (vii) The fdn shall be design as per the SBC of the soil at the loc of construction. (viii) The Contractor shall provide the STAAD file/ AUTOCAD drg in soft copy, design folder and drgs duly vetted by any IITs/NITs/ Govt Engineer Collage shall be submitted alongwith above said soft copy. (ix) The contractor shall execute the work as per the said Str drg only after approval of same from Accepting Officer. (A=6, B=2)

Surface dressing not exceeding 15 cm deep and getting out in soft/loose soil complete all as specified (A=2255, B=0)

Bringing approved earth (as approved by Garrison Engineer) from sources outside defence land including all cost such as royalty if any, transportation, taxes, etc. for area filling / area development upto MGL level including raising of original ground level upto MGL by approved earth and including spreading in layers not exc 30cm thick each layer, watering, compaction with 8 tonne to 12 tonne power roller and finished to required size and shape etc. Notes: (i) Earth required for the item, shall be supplied by contractor, from out side MOD land of any lead, at his own arrangement. (ii) All cost of procurement of earth including cost of transportation, compaction, royalties, tax etc shall be deemed to be included in the unit rate quoted by the contractor. (iii) With reference to clause 3.6 of MES part-II on serial page No-21 it is clarified that measurement of the above item shall be of finished embankment /traverse of filled earth after consolidation /compaction and 5% deduction shall be made from measured and calculated volume to allow for increase in bulk. (iv) Total quantity /partial quantity of earth may not be available in Jorhat Area. The contractor has to bring the earth from out side area and therefore it is advised to quote the rate considering availability of soil and its lead involved. (A=1675, B=0)