Indian Minerology

Coal Mines Regulations 2017 Chapter I – Preliminary MCQ Coal Mines Regulations 2017 - Chapter I MCQ Objective Questions for DGMS | Mine Manager | Overman | Sirdar Exams Chapter I – Preliminary (CMR 2017 MCQs with Answers) Q1. The Coal Mines Regulation 2017, is made under section ___ of the Mines Act 1952: (a) Section 57 (b) Section 58 (c) Section 61 (d) Section 64 Check Answer Q2. CMR 2017 is effected from: (a) 25th November 2017 (b) 26th November 2017 (c) 27th November 2017 (d) 28th November 2017 Check Answer Q3. Draft of CMR 2017 were published in the Gazette of India on: (a) 20th October 2011 (b) 20th October 2012 (c) 20th October 2014 (d) 20th October 2015 Check Answer Q4. Draft is published in the Official Gazette inviting objections and...

Opencast Mine Water Balance Modelling: A Step-by-Step Guide Opencast Mine Water Balance Modelling: A Step-by-Step Guide Understanding and managing water in open-pit mining operations Introduction to Water Balance Modelling in Opencast Mines Water balance modelling is an essential tool in open cast (opencast) mining to assess and predict the movement, storage, and quality of water within the mining site. It helps mining engineers and environmental professionals manage water resources effectively, ensuring compliance with regulations and minimizing environmental impacts. Why is Water Balance Modelling Important? Opencast mining disturbs natural water flows by changing topography, exposing groundwater, and increasing surface runoff. Proper water management is crucial to: Prevent flooding of mine pits and infrastructure Control sediment and pollutant discharge Optimize water re...

In-pit vs External Dumping Methods in Mining | Waste Management In-pit versus External Dumping Methods in Mining In mining operations, especially open cast mining, managing overburden and waste material effectively is critical. Two common dumping methods are In-pit dumping and External dumping . Choosing the right method influences operational cost, environmental impact, and long-term mine planning. What is In-pit Dumping? In-pit dumping involves placing waste material inside the mine pit itself, usually in mined-out areas or contouring alongside the pit walls. This method minimizes the distance for hauling waste and often provides natural containment. What is External Dumping? External dumping refers to transporting waste material outside the mine boundaries to designated dumpsites. These are usually large waste dumps located away from the active mining area. Comparison of In-pit and External Dumping ...

Settling Pond Design for Opencast Mines | Mining Water Management Settling Pond Design for Opencast Mines Settling Pond Design for Opencast Mines Effective water management is crucial in open cast mining to reduce sediment load and minimize environmental impact. Settling ponds play a vital role by allowing suspended particles to settle before water is discharged. This guide explains important factors in designing settling ponds specifically for opencast mines. Contents: Importance of Settling Ponds Key Design Factors Settling Pond Sizing Construction and Maintenance Environmental Benefits Conclusion Importance of Settling Ponds In opencast mines, rainfall and operational runoff carry sediments that can pollute nearby water bodies. Settling ponds help by capturing this runoff and allowing suspended particles to settle out under gravity, improving water quality before release. Key Design Fa...

Rainfall Runoff Calculations for Pits | Step-by-Step Guide Rainfall Runoff Calculations for Pits: A Step-by-Step Guide Managing rainfall runoff in pits, especially in mining or construction sites, is crucial to prevent flooding, structural damage, and environmental issues. Understanding and calculating how much runoff water a pit generates during rainfall helps design effective drainage systems. What is Rainfall Runoff? Rainfall runoff is the portion of precipitation that flows over the land surface and ends up in drainage systems. For pits with bare or disturbed soil, runoff can be significant depending on rainfall intensity, soil type, and pit geometry. Key Parameters for Runoff Calculation Rainfall Intensity (I): The rate of rainfall (usually mm/hr). Catchment Area (A): Surface area of the pit contributing to runoff (usually in hectares or square meters). Runoff Coefficient (C): A d...

SOP for Grader Operator Standard Operating Procedure (SOP) for Grader Operator Construction & Roadwork Safety Guidelines Objective The purpose of this SOP is to establish safe and efficient operating procedures for grader (GREDAR) operators in construction and roadwork projects. Scope This SOP applies to all grader operators, site supervisors, and project managers engaged in grading and leveling tasks. Main Responsibilities Operate the grader safely and efficiently according to site requirements. Conduct pre-start checks of brakes, lights, hydraulics, and tires. Follow site safety rules and speed limits. Maintain clear communication with ground staff. Document daily operational records and report faults. Step-by-Step Operating Procedure 🔹 Step 1: Pre-Operation Inspection Check fuel, oil, coolant, and hydraulic fluid levels. Inspect blades, tires, and cutting edges for ...

Open Cast Mine Reclamation Techniques | Sustainable Mining Practices Open Cast Mine Reclamation Techniques Introduction Techniques Benefits Conclusion Introduction Open cast mining, while effective for extracting minerals, leaves behind disturbed landscapes that require careful reclamation. Mine reclamation aims to restore these areas to ecologically stable and productive conditions, mitigating the environmental impacts of mining activities. This post provides an overview of key reclamation techniques used to rehabilitate open cast mine sites for sustainable land use. Key Reclamation Techniques 1. Land Contouring and Grading After mining, the site is reshaped to stabilize slopes, reduce erosion, and prepare the land for vegetation or other uses. 2. Soil Replacement and Conditioning Topsoil removed before mining is replaced to provide a fertile base for plant growth. Soil conditioning wit...