State of Karnataka
Total Page:16
File Type:pdf, Size:1020Kb
O&M Manual for Hagaribommanahalli Pickup Dam Jan - 2020 Operation and Maintenance Manual for Hagaribommanahalli Pickup Dam State of Karnataka Doc. No.CDSO_O&M_KA06MH0087_HBHalli Pick Up_DAMKAWRD_01_v2.0 Prepared by Chief Engineer KNNL, Irrigation Central Zone, Munirabad. Doc. No. CDSO_O&M_KA06MH0087_Hagaribommanahalli Pickup Dam_v2.0 Page i O&M Manual for Hagaribommanahalli Pickup Dam Jan - 2020 Front Cover Photograph: Downstream view of H B Halli pickup Dam during rehabilitation works carried out under the Dam Rehabilitation & Improvement Project (DRIP). The scope of work entails contact works carried out to reduce seepage at no.5 using grouting, strengthening of U/s of embankment strengthening of U/s of embankment d/s of walls and embankment, improvements to dam top surface and special treatment concrete surface to reduce erosion and upgrading of dam gates. Chief Engineer KNNL, Irrigation Central Zone, Munirabad. Ph No: 08539-270026 Email: [email protected] Doc. No. CDSO_O&M_KA06MH0087_Hagaribommanahalli Pickup Dam_v2.0 Page ii O&M Manual for Hagaribommanahalli Pickup Dam Jan - 2020 Operation and Maintenance Manual for Hagaribommana halli Pickup Dam KARNATAKA NEERAVARI NIGAM LIMITED (A Government of Karnataka undertaking) State of Karnataka Chief Engineer KNNL, Irrigation Central Zone, Munirabad. JAN 2020 Doc. No. CDSO_O&M_KA06MH0087_Hagaribommanahalli Pickup Dam_v2.0 Page iii O&M Manual for Hagaribommanahalli Pickup Dam Jan - 2020 Doc. No. CDSO_O&M_KA06MH0087_Hagaribommanahalli Pickup Dam_v2.0 Page iv O&M Manual for Hagaribommanahalli Pickup Dam Jan - 2020 Message India has more than 5200 large dams. Their health and safety are of paramount importance for sustainable use of the valuable assets, besides providing protection to the people and property in the downstream areas. The Ministry of Water Resources, River Development & Ganga Rejuvenation through the Central Water Commission (CWC), with financial assistance from the World Bank, started the Dam Rehabilitation and Improvement Project (DRIP) to rehabilitate 198 large dam projects in seven states. For managing a dam in a sustainable and scientific manner, it is very crucial for each dam owner to have dam specific Operation and Maintenance Manual that lays down procedures for the daily upkeep of the dam. An Operation and Maintenance Manual for a dam is essential for ensuring its safe functioning and for deriving continued benefits. This Operation and Maintenance Manual for Hagaribommana halli Pick Up Dam has been prepared following the Guideline for Preparation Operation and Maintenance Manuals published in January 2018 under DRIP and covers requirements for project Operation, Inspection, Maintenance, Instrumentation and Monitoring the health of Hagaribommana halli Pick Up Dam both during monsoon and non-monsoon periods I recommend the dam officials to use this manual for the efficient and safe Operation and Maintenance of the Hagaribommana halli Pick up Dam on regular basis. I compliment all the experts who have contributed to the development of this manual and congratulate the Ministry of Water Resources, River Development & Ganga Rejuvenation, CWC for the initiation of such important policy protocol to address dam safety management in India. Shri. Rakesh Singh, IAS Principal Secretary Water Resources Department, Karnataka. Doc. No. CDSO_O&M_KA06MH0087_Hagaribommanahalli Pickup Dam_v2.0 Page v O&M Manual for Hagaribommanahalli Pickup Dam Jan - 2020 Forward This Operation and Maintenance (O&M) Manual developed exclusively for Hagaribommana halli Pick up Dam is a detailed set of written descriptions with step-by-step procedures for ensuring that the dam is safely operated, frequently inspected and properly maintained. In this era of shrinking budgets, timely inspection and preventative maintenance is necessary for the safe functioning of the dam and continued productive use of the dam and reservoir. The format of this manual was prepared following the principles published 2018 CWC guidelines for operation and maintenance of dam for the use by all Dam Owners in developing their own site-specific manuals. Each section of the document provides the necessary instructions to operate, inspect and maintain their dam. It is recommended that all dam officials charged with the operation of their dams to use this manual to ensure their dam is operated and maintained in a sustainable manner and will continue to derive benefits. Doc. No. CDSO_O&M_KA06MH0087_Hagaribommanahalli Pickup Dam_v2.0 Page vi O&M Manual for Hagaribommanahalli Pickup Dam Jan - 2020 Team Involved in Preparing this O&M Manual Sri.S.H.Manjappa Chief Engineer, KNNL, ICZ, Munirabad. Sri. B.Malligawad Superintending Engineer, KNNL, TP Circle, Munirabad. Sri.S.B.Nagabhushan Executive Engineer, KNNL, T R Division, Munirabad Assistant Executive Engineer, KNNL, Head Works Sub Sri.Basavarajhalli Division, Munirabad. Assistant Engineer, KNNL, Head Works Sub Division, Krishna Kumar P V Munirabad. Doc. No. CDSO_O&M_KA06MH0087_Hagaribommanahalli Pickup Dam_v2.0 Page vii O&M Manual for Hagaribommanahalli Pickup Dam Jan - 2020 Contents LIST OF FIGURES ..................................................................................................................... X CHAPTER 1. - GENERAL INFORMATION ................................................................................... 2 1.1 Introduction ..............................................................................................................2 1.2 Purpose, Location &Description of Hagaribommanahalli Pickup Dam ............2 1.3 Background Details of the Project ..........................................................................4 1.3.1 Dam site Location ............................................................................................ 4 1.3.2 Reservoir Planning ........................................................................................... 4 1.3.3 Main Design Features and Components of H.B. Halli Dam ....................... 7 1.4 Salient Features of Hagaribommanahalli Pick up Dam .......................................8 1.5 Assignment of Responsibility ................................................................................10 1.5.1 Roles and Responsibilities of the AEE and AEduring Monsoon .......... 11 1.5.2 Roles and Responsibilities of the SE and EEduring Monsoon .............. 11 1.5.3 Roles and Responsibilities of the Chief Engineer during Monsoon ...... 12 1.6 Collection & Reporting of Dam and Reservoir Data ...........................................12 1.7 Public and Project Staff - Health and Safety ........................................................15 1.7.1 Restricted Areas ......................................................................................... 15 1.7.2 Details of the Security arrangements. ....................................................... 15 1.8 Staff Position, Communication & Warning System ............................................17 1.8.1 Schedule of General Duties for Project Engineers .................................. 20 1.8.2 Hydro-Mechanical Inspections / Checks ................................................ 23 1.9 Distribution of Operation & Maintenance Manuals ...........................................24 1.10 Supporting Documents & Reference Material ...............................................24 CHAPTER 2. PROJECT OPERATION ................................................................................... 25 2.1 Basic Data ...............................................................................................................25 2.1.1 Area Capacity curves. ................................................................................. 25 2.1.2 Design Flood and Features Related to Safety .......................................... 25 2.2.1 Gate Operations: ........................................................................................ 26 2.2.2 Rule Curve and Flood Peaks of Different Return Periods. ....................... 31 2.2.5 Inflow Computation ................................................................................ 35 2.2.6 Summary of Flood Regulation Procedure. ............................................... 36 2.3 Operation of Vertical Lift Gates of HB Halli Pickup Dam .....................41 2.3.1 Spillway vertical lift gates and hoists. ....................................................... 41 2.3.2 Irrigation Sluice gates and hoists. ............................................................. 41 Doc. No. CDSO_O&M_KA06MH0087_Hagaribommanahalli Pickup Dam_v2.0 Page viii O&M Manual for Hagaribommanahalli Pickup Dam Jan - 2020 2.4 Operating Instructions ...........................................................................................42 2.4.1.3 Motor .......................................................................................................... 43 2.4.1.4 E.M. BRAKE .......................................................................................... 43 2.4.1.5 Thrustor Brake ......................................................................................... 43 2.5 CCTV Arrangement ...........................................................................................44 2.6 RIVER OUTLET WORKS. .............................................................................45 2.6.1 Description: .............................................................................................. 45 2.6.1.2 Head Regulators of the Canal ............................................................ 45 2.6.1.3