Sewage And Infrastructure Development Corporation Of Goa Limited Tender

250 mm

Conducting ground penetrating radar survey in corridor of 4-6 meter width to deduct buried untilities like pipes,cables etc. in such corridor with information of locations & depth to the top of various untilities detected. Work to be conducted using 500 MHz & 300 MHz antenna for best possible resolution & penetration. along the 6 mt wide road corridor

Conducting Sesmic Refraction Survey to determine stratigraphy along proposed route i.e. soil wethered rock, rock interfaces. Detection of faults ,fractures ,shears zones etc.,in the investigated area.Geophone spacing 5m, test to be conducted using 24 channel signal enhancement type seismograph 5m Geophone Spacing & for projects having minimum length of 115m

Conducting Electrical Tomography tp determine shallow stratigraphy along the route, presence of voids, saturation zones , water table & other geogical features having contrast in resistivity with the surrounding soils. Electrode spacing 5 meters , minimum electrode spread of 60electodes 5m. Electrode spacing & for projects having a minimum length of 300m

Excavation of Shafts for pipe jacking/ramming purpose in soil inclusive of all shuttering, strutting, and shoring and maiunttaining the shafts during construction operation and backfilling the same after the complition of work

For Shafts of 7.5mX5m upto a depth of 5m in all type of soil

Beyond 5m dep up to 7.5mtr.

Beyond 7.5m dep up to 10mtr.

Closed planking in trenches including strutting and shoring packing cavaties (wherever required) complete for sewerage works in saturated soil strata

for works of depth of upto 1.5 m

for works of depth of upto 3.0 m

for works of depth of upto 4.5 m

for works of depth of upto 6.0 m

for works of depth of upto 7.5 m

Refilling the pipeline/foundation trenches plinth sides,foundation etc with available excavated earth in layers not exceeding 20 cm depth consolidating each layer ramming and watering lead upto 50 m and all lifts and disposal of surplus earth directed by Engineer-in-charge

Installation of HDPE product pipe by HDD method including preparing & setting up the plant & equipment preparing new pipe work material, installing new pipe work & commissioning by HDD operation including all related civil & mechanical works like excavation ,shoring strutting etc. drilling,stringing, reaming & pulling back the new pipe work on the designed bore path alignment by using approved guidence system, proper disposal of drilling fluid & restoration of site including backfilling of excavation & holes by approved material to 95% of original density after completion all inclusive as per indSTT:101-2007 : code of practice for Horizontal Directional Drilling technique suiting indian conditions.

(i) All types of Soil(Except Mixed strata & rocks) - 250 mm

(ii) Other types of Soil / Mixed Strata - 250 mm

(iii) Rocks - 250 mm

Cutting the bituminous road for laying the pipeline in trenches for a width of 0.6m including labour , tools etc, and disposing the excavated excess material from the trench to a distance of 1000 meters, including making level the trench surface by utilising the serviciable material to the level of the top surface of road, by compacting, watering ramming with rolling with road roller after completion of laying of pipe and refilling the trenches etc. complete as per the direction of engineer incharge.

Construction of Composite type Manholes of various diameters and depth , as per the detailed specification of items of work annexed with

v) 1500mm dia x 3000 to 3500mm depth

vi) 1500mm dia x 3500 to 4000mm depth

vii) 1500mm dia x 4000 to 4500mm depth

viii) 1500mm dia x 4500 to 5000mm depth

ix) 1500mm dia x 5000 to 5500mm depth

x) 1500mm dia x 5500 to 6000mm depth

xi) 1500mm dia x 6000 to 6500mm depth

xii) 1500mm dia x 6500 to 7000mm depth

xiii) 1500mm dia x 7000 to 7500mm depth

xii) 1800mm dia x 7500 to 8000mm depth

Hydrophillic swellable water bar: Providing water stop swellable barat pipe-concrete joint (20X10 mm thick) to avoid infiltration and exfiltration leakages of approve make MC Waterstop SW-IN. or equivalent

i) 250 mm

Providing,Laying and jointing of Rigid PVC pipes for using underground drainage and sewerage system confirming to IS : 15328 - 2003 stifness class SN-8 (8 KN/m2,SDR -34) including Earthwork in excavation by manual means in foundation pipeline trenches drain (not exceeding 1.5m in width or 10 sq. m. on plan) in all types of soil including dressing of sides and ramming of bottoms, lift upto 1.5 m including getting out the excavated soil and disposal of surplus excavated soil as directed within a lead of 5km including Bed concrete 1:3:6 (1 cement:3 coarse sand:6 graded granitic a basaltic stone aggregate 40mm nominal size) including rubble packing and Refilling the pipeline trenches with available excavated earth in layers not exceeding 20cm depth consolidating each layer ramming and watering lead upto 5km and all lifts and disposal of surplus earth as directed by the Engineer in charge. a)160mm OD

Construction of manhole rectangular (On Road) in shape including cement concrete 1:3:6 (1 cement:3 coarse sand:6 graded stone aggregate 20mm nominal size) foundation thickness of concrete 20cms and offset 10cms on both sides and first class brick work with bricks class designation 100kg/cm2 in cement mortar 1:3 (1 cement : 3 coarse sand) 23cms thick including providing & fixing CI footrests confirming to IS 5445/69 or revised and whose weight shall not be less than 5.30kgs including fixing in man-hole at 30cm c / c in 20x 20x15cm cement concrete block 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 20mm nominal size) and 12mm thick plaster inside and outside with cement mortar 1:3 (1 cement : 3 coarse sand) including adding waterproofing compound of approved brand in cement mortar with a floating coat of neat cement and making channel in cement concrete 1:2:4 (1 cement :2 coarse sand : 4 graded stone aggregate 20m nominal size) neatly finished complete as per standard design.Inside size 0.90x0.60m and 1.00m deep (with precast RCC slab covers of concrete grade M25 30T capacity) including fixing with cement concrete 1:2:4 ( 1 cement :2 coarse sand : 4 graded stone aggregate 20mm nominal size and applying the frame & cover with coal tar,including Cutting the bituminous road for laying of pipeline in trenches, including earthwork in excavation by manual means in foundation pipeline trenches drain (not exceeding 1.5m in width or 10 sq. m. on plan) including dressing of sides and ramming of bottoms, lift upto 1.5 m including getting out the excavated soil and disposal of surplus excavated soil as directed within a lead of 5km. including supply and fixing of sewer trap inside chamber and Refilling the pipeline trenches with available excavated earth in layers not exceeding 20cm depth consolidating each layer ramming and watering lead upto 5km, reinstating the road surafce by rubble packing with hard laterite stone & providing and laying in position cement concrete 1:2:4 (1 cement : 2 coarse sand: 4 graded granitic or basaltic stone aggregate 40mm nominal size) and disposal of surplus earth as directed by the Engineer in charge including rubble packing etc complete. For Chamber on road: Inside size 0.90 x 0.60m and 1.00m deep

Supplying of laterite stone soling of size 150-200 mm size and murrum having P.I. Value not more than 6 and laying including packing with smaller stones and consolidation with power road roller including spreading, watering and consolidation of binding material etc.(Measurements shall be considered on finished item) .

Providing and laying 50mm(consolidated thickness)full grout using granitic or basaltic stone of specified grading at 6.00 cu.m. per 100 sq.m. grouting with hot bitumen straight run bitumen(or with such bituminous material of grade and type as specified by the Engineer-in-Charge)at 5.0kg. per sq. m. binding with key aggregate of granitic or basaltic stone of specified grading at 1.5 cu.m. per 100 sq.m. including Providing and laying seal coat sealing the voids in a bituminious surface laid with F.E loader with 1 Cu.m. bucket capacity to the specified levels, grade and cross fall using Type A seal coat with 0.98 kg/sqm of bitumen of grade as per MoRT&H specifications clause 513.

Construction Pumping Station including Electromechanical works and laying of rising Main