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Project :

ALMATTI DAM, IN KARNATAKA

 

TREATMENT OF UNCONFORMITY ZONE AND TO PROVIDE GROUT CURTAIN AND DRAINAGE HOLES THROUGH GALLERY OF ALMATTI DAM

Client : CHIEF ENGINEER, ALMATTI DAM, K.B.J.N.L. GOVT OF KARNATAKA, BANGALORE
Location : ALMATTI DAM 70 KM FROM BIJAPUR TOWN, IN KARNATAKA
   
 The work was executed under trying and severe artisan condition, due to poor geology of Dam foundation.
     
     
     
Details  
The work was executed under trying and severe artisan condition, due to poor geology of Dam foundation.
Beside dealing with curtain grouting through drainage gallery from Block No. 1 to 52 of Almatti Dam, one of the main objectives of this challenging work was ro treat the weak zone (unconformity Zone) having thickness of 6 M and was existing in the foundation from Block No. 45 to 52, between the joint of base granite rock and the overlying quartzitic formations.
80% of work was to be executed through drainage gallery of size 1.5 M x 2.25 M. In a period of 12 months. This challenging job was executed by employing 20 Rotary drilling rigs, 8 Roto percussive rigs, 6 Air compressors of 450 cfm and 8 Grout pumps with supporting machinery and accessories.
A technical team of 8 qualified Engineers, 8 foremen, 220 drillers, operators, skilled workers and supporting staff were working, round the clock in 3 shifts for 12 months.
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