OB REMOVAL, COAL EXTRACTION AND OPERATION OF HEMM PACKAGE FOR
KERENDARI ‘A’ COAL BLOCK LOCATED AT DISTRICT HAZARIBAGH, STATE OF
JHARKHAND, INDIA
“Salient Technical Features of the equipment/systems/services covered in Bidding
Document No. CS-7012-726-9 are 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
Document shall be final and binding.”
SALIENT FEATURES
INTRODUCTION
Kerendari ‘A’ Coal Block or, Kerandari Coal Mine has been allocated to NTPC under
Captive mode. It is located in the northern part of the North Karanpura Coalfield and lies
in Hazaribagh district of Jharkhand. This block is contiguous to Chatti Bariatu Block
owned by NTPC in the West, Dumri Block in the North West, Kerendari ‘B’ in the East
and Tandwa State Highway in the South.
The block is about 45 km. from Hazaribagh and is connected by an all weather metalled
road going from Hazaribagh to Tandwa and the nearest rail head is Ray Station
(Approximately 25 km from the block).
Kerandari ‘A’ Coal Block shows a flat topography and is dissected by a number of
seasonal streams. The drainage is controlled by the Basaria nala in the East & Baldeori
nala in the South-Central part of the block.
The Mining Plan and Mine Closure Plan of Kerendari ‘A’ Coal Block is already approved
by Ministry of Coal for a targeted capacity of 6 MTPA. The environment clearance has
been granted by MoEF. Stage-I Forest clearance has also been granted by MoEF.
GEOLOGY
Total area of the allotted coal block is 654 Hectare (Ha). Geological Report procured from
CMPDI covers 413 Ha on northern side with proven reserves (wherein detailed
exploration is completed) and 241 Ha on southern side (dip side) with indicated reserves
(wherein detailed exploration was not carried). Hence, Mining Plan was prepared and
approved for proven reserves in northern part only. The block is moderately faulted with
5 faults. The strike of the strata is roughly E-W with southerly dip of 9
o
to 11
o
.
The Barakars are the main coal bearing formation in this block. There are four persistent
coal seams in Barakar Formation, viz. Seam-I, II, III & IV in ascending order. In addition
of these, one local coal horizon i.e. L of generally 1 to 2m thickness also occurs below
Seam-I Bottom. Out of four Barakar Coal Seams Seam-I, is splitted into three Sections,
whereas Seam-II, III & IV are splitted in two sections. These sections have been
designated as Top, Middle and Bottom. Besides these four main Seams, four more thin
Coal horizons are seen to have developed above Seam-IV and are namely Seams IVA,
IVB, IVC & IVD.
The most potential coal seams of the block from thickness point of view are Seam I TMC
(14 to 15m), Seam I Middle (10 to 12m), Seam II Bottom (7 to 9m), Seam IV Combined
(8 to 9m) and Seam IV Top (6 to 7m). The remaining potential coal seams namely Seam
I Bottom, Seam I Top, Seam II Top, Seam III Bottom, IV Bottom and Seam L (Local) are
thin having generally 1m to 3m thickness.
The total Mineable reserve within the block is 139.74 Million tones and the total
corresponding overburden/ interburden is estimated as 616.65 million cubic meters.
SCOPE OF WORK
Scope of the Contractor/Mining Agency include;
OB removal & Coal extraction by
(i) Deployment and Operation of HEMM
(ii) Operation of HEMM provided by NTPC with contractual deployment of
Operators
The “Mining Agency” shall be fully responsible for the O&M of the HEMM being deployed
by him. NTPC supplied HEMM will be maintained by OEM through Maintenance and
Repair Contract by NTPC except for minor maintenance by Mining Agency as & when
required .The operation of these NTPC HEMM is to be carried out by deploying trained
operators by Mining Agency. The suitability of these operators for operating the machines
is to be certified by the OEM/suppliers of HEMM & deployment shall be in consultation
with Work Incharge NTPC.
The total quantity of coal envisaged is 24 Million metric tonnes of coal and corresponding
overburden removal is 62.38 million cubic meters.
Year wise coal production and OB removal is as follows;
Year
Coal (Mt)
OB (Mcum)
1
2.0
6.49
2
4.0
9.92
3
6.0
14.87
4
6.0
14.87
5
6.0
16.23
NTPC’s SCOPE OF WORK
NTPC’s scope of work includes Procurement of major HEMM and handover to the mining
agency, documented payment towards land acquisition, various grants under R&R.
