1. IntroductionRockfill dams are vital components of hydropower and water management projects. The integrity of the dam’s foundation and the stability of its structure are critical for its performance and safety. Microbial Bio-Treatment (MBT) has emerged as an innovative method to enhance the geotechnical properties of rockfill materials and ensure long-term durability. 2. Objective of … Read more
1. Introduction Rockfill dams and associated hydraulic structures play a crucial role in water resource management, power generation, and flood mitigation. This report covers topics from the attached files, focusing on stability analysis, spillway design, sediment flushing, and hydrological considerations. The aim is to provide a comprehensive understanding of these structures, ensuring their safe and … Read more
1. IntroductionThis report focuses on the stability analysis of gravity retaining structures for rockfill dams. These structures are critical for ensuring the safety and functionality of dams, which serve purposes such as water storage, flood control, and hydroelectric power generation. The study aims to analyze the stability of rockfill dams by evaluating various influencing factors, … Read more
Introduction The Neelum-Jhelum Hydroelectric Project, located in Azad Jammu and Kashmir, is a flagship venture under the Pakistan Water and Power Development Authority (WAPDA). It aims to harness hydropower efficiently through advanced engineering techniques. A key component of this project involves the excavation of a twin headrace tunnel spanning 11.5 km, constructed using Tunnel Boring … Read more
Sediment accumulation in reservoirs can significantly impact the efficiency of hydropower plants. Flushing operations are a vital part of managing sediment buildup, ensuring that the water flows freely through turbines and maintaining optimal dam safety. This process involves controlled releases of water to dislodge sediment deposits, preventing blockage and sediment-related damage to turbines and other … Read more
Spillway gates are critical components of dams and hydropower plants, controlling water discharge to ensure reservoir safety and flood management. Regular maintenance of these gates is essential to ensure smooth operation, structural integrity, and long-term reliability. In this post, we’ll walk through the key steps engineers follow to maintain spillway gates, along with best practices … Read more
Spillway gates are critical components of dams, controlling water discharge for safety and flood management. Regular maintenance ensures smooth operation, structural integrity, and long-term reliability. Here are the key steps engineers follow to maintain spillway gates effectively: Spillway gate maintenance begins with inspection and assessment. Engineers conduct visual inspections to identify signs of wear, rust, … Read more
What is Sediment Flushing?Sediment flushing is the process of removing accumulated sediments from a reservoir by releasing water through the dam’s outlets at high velocity. This creates a scouring effect, which carries the sediments downstream. This method is particularly useful in dams where sedimentation threatens to reduce water storage capacity and obstruct critical functions such … Read more
Design and construction of the Neelum-Jhelum Hydro Power Project has incorporated extensiveanalytical studies both prior to and during the period of construction. Nevertheless, it is not untilthe completed structures are put into service that the results of the efforts of WAPDA, theEngineer, and the Contractor can be truly confirmed. For the headrace tunnel (HRT) allappurtenant … Read more
A detailed study on dynamic deformation analysis of the rockfill dam in the Nauseri Dam site under the Operating Basis Earthquake (OBE), 475-year Earthquake and Maximum Credible Earthquake (MCE) is presented herein. Evaluation of the behavior of the interface between the rockfill dam embankment and concrete structures at the Nauseri Dam site, and donfirmation of … Read more