Roof Support Systems & DGMS Safety Rules in Underground Mines 🧱 Roof Support Systems & DGMS Safety Rules – DGMS Exam Notes Introduction Roof support is one of the most vital safety aspects in underground mines. A weak or unsupported roof can lead to falls of ground (FOG) — a major cause of fataliti...
Depillaring Methods & Safety Measures – DGMS Exam Notes Introduction Depillaring is the final stage of the Bord and Pillar mining method where the coal pillars left for support are systematically extracted. This operation is one of the most hazardous in underground mining due to potential roof falls...
Pillar Design Principles in Bord and Pillar Mining – DGMS Exam Guide Pillar Design Principles in Bord and Pillar Mining – DGMS Exam Guide 🏗️ Pillar Design Principles – DGMS Exam Notes Introduction In the Bord and Pillar mining method, coal is extracted through a grid pattern of galleries (bords) an...
Introduction to Bord and Pillar Mining – DGMS Notes 🧭 Detailed Notes 🪨 1. Introduction The Bord and Pillar method (also known as the Room and Pillar method) is one of the oldest and most widely used underground coal mining methods in India. It involves developing a network of roadways (bords) and ...