Clause No Salient Features



North Karnpura STPP, (3x660 MW)

Construction of Barrage across Garhi River Package

SALIENT TECHNICAL FEATURES


Salient Technical Features of the equipment/systems/services covered in IFB no 40055080 is mentioned below. These Salient Technical Features are mentioned only to facilitate the prospective bidders to prima-facie understand the requirements under the tender and shall not in any way limit or alter the scope of work and technical features/ specification of equipment/systems/services covered in the Bidding Documents. Detailed provisions in regard of scope of work and technical features/specification of equipment/systems/services, contained in the Bidding Documents shall be final and binding.”


SALIENT FEATURES OF THE PROJECT

1. Location

Name of the river : Garhi

State : Jharkhand

District : Hazaribagh

Nearest rail head : Hazaribagh

Nearest Airport : Ranchi

Longitude : 85º02'05"E.

Latitude : 23º51'22"N

2

Barrage


Type

:

Glacis type


Top of (pier) Barrage

:

EL 439.0m


Length of Barrage at top

:

105.00m


Top Width

:

4 m


Maximum height of barrage

:

7.0 m


Max. water level

:

437.5 m


Deepest foundation level

:

426 m

3

Hydraulic Data (Barrage)


Design flood

:

1800 m3/s


Bay width & No. of bays

:

9.0 m, 09 Nos.


Crest level

:

EL 432.00 m


Gates

:

Vertical lift


Gate opening

:

9.0m X 6.0 m


Pier thickness

:

2.0 m

4

Intake and Pump House

:



Location of Intake

:

60m away from right bank & 100 m Upstream of barrage axis


Shape

:

Semi double D


Dimension

:

Length 26.9 m Width 10.0 m


Stein thickness

:

1 m facing bank side & 1.5m facing river side


Intake opening

:

3 Nos


Intake gate size

:

1.5 m X 1.0 m


Type of gate

:

Vertical


Hoisting arrangement

:

Screw hoist type


Invert level of inlet

:

433.5 m


Trash rack

:

1.5 m X 1.0 m


C/L of header pipe

:

EL 438.10 m


Approach bridge deck level

:

EL 439.0m


NTPC Ltd.

NORTH KARANPURA STPP (3 × 660MW)

Construction of Barrage across Garhi River Package

Bid Doc No. : CS-4410-301B-9




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