seismic refractive index method of mining

seismic refractive index method of mining

The Seismic Refraction Method Frontier Geosciences Inc The seismic refraction method due to its versatility is one of the most commonly used geophysical methods in engineering mining groundwater exploration and environmental site investigations Based on favourable density contrasts that generally exist between geological materials...

Know More
Some Applications of Seismic Refraction Techniques in

The seismic method is divided into reflection and refraction techniques based on whether or not a wave undergoes a reflection at the extent of its travel Thus while most refracted events have not been reflected most reflected events have been refracted because a refraction occurs across any velocity interface in accordance with the simple...

Know More
Seismic Refraction Method to Study Subsoil Structure

Fkirin MA Badawy S El deery MF 2016 Seismic Refraction Method to Study Subsoil Structure eol eophys 5 259 doi 104172/2381 87191000 259 Page 3 of 6 eo eo a oe ae oa oe 5 e 5 25 23 In this experiment is 46 m Seismic source at a minimum there should be two shots located at either began and end of line It is best practice...

Know More
Definition of seismic method

There are two main subdivisions of seismic operations the reflection method and the refraction method The seismic method has been applied to a lesser extent to elucidate mining problems partly due to its high cost It has been used to investigate the base of drift deposits and drift-filled channels have been successfully outlined Ref Nelson...

Know More
ON A SEISMIC REFRACTION SURVEY ON

Seismic refraction work was carried out over Placer Lease 3497 located about 13 km N60 176 W 300 176 E of the village of Manson Creek on Ah Lock Creek and Germansen River in the Omineca Mining Division BC during the period of November 1st to 28th 1988 The...

Know More
Seismic refraction

The seismic refraction method involves measuring the shortest time required for an induced seismic pulse to travel from the source location to a series of receivers From this travel time data seismic velocities and layer depths can be calculated...

Know More
Aurora Mines Inc Report on Seismic Refraction Investigation

2 THE SEISMIC REFRACTION SURVEY METHOD 21 Equipment The seismic refraction investigation was carried out using a Geometrics Smartseis S-24 24 channel signal enhancement seismograph and Mark Products Ltd 48 Hz geophon Geophone intervals along the multicored seismic cables were maintained at 5 metres in...

Know More
The Seismic Refraction Method Frontier Geosciences Inc

The seismic refraction method due to its versatility is one of the most commonly used geophysical methods in engineering mining groundwater exploration and environmental site investigations Based on favourable density contrasts that generally exist between geological materials the refraction method is utilised to provide detailed...

Know More
Earth exploration

Earth exploration - Earth exploration - Seismic refraction methods Seismic methods are based on measurements of the time interval between initiation of a seismic elastic wave and its arrival at detectors The seismic wave may be generated by an explosion a dropped weight a mechanical vibrator a bubble of high-pressure air injected into water or other sourc...

Know More
seismic refraction investigation of the Archaean Kaapvaal

A seismic refraction investigation of the Archaean Kaapvaal Craton South Africa using mine tremors as the energy source Synthetic seismograms computed for a 1-D velocity model by the reflectivity method compare well with the observed data The influence of geology on the mechanisms of mining-induced seismicity in the Klerksdorp goldfield...

Know More
High resolution seismic refraction method using surface

The authors have developed a new method for the analysis of seismic refraction data which can handle both surface and borehole data simultaneously The main features of the method we developed are as follows 1 The algorithm of analysis is based on the tomographic reconstruction technique and refraction data can be analyzed almost automatically after traveltime picking...

Know More
Standard Guide for Using the Seismic Refraction Method for

seismic refraction method be familiar with the relevant mate-rial in this guide and the references cited in the text and with appropriate ASTM standards cited in 21 122 This guide is limited to the commonly used approach to seismic refraction measurements made on land The seismic refraction method can be adapted for a number of special uses...

Know More
Seismic Refraction

The Seismic Refraction method involves the measurement of travel times of seismic compressional waves P-waves that are generated at the surface propagate through the subsurface and return to the surface after being refracted at the interface between layers of contrasting seismic velocity...

Know More
Seismic Refraction Methods site

The seismic refraction method is based on the measurement of the travel time of seismic waves refracted at the interfaces between subsurface layers of different velocity Seismic energy is provided by a source shot located on the surface Energy radiates out from the shot point either travelling directly through the upper layer direct...

Know More
Mining Exploration A New Frontier for the Canadian

Traditional geophysical exploration methods in the mining industry have relied heavily on potential-field and electromagnetic methods both airborne and ground-based to locate drilling targets Although it is generally recognized that seismic methods provide sufficient depth penetration and resolving power for deep exploration the prevailing...

Know More
PDF Underground Applications of Seismic Measurements in

In 1978 an underground seismic refraction survey using the method of Gendzwill 1969 was conducted in development openings of 10B panel to measure the...

Know More
PDF Seismic refraction method A technique for

The seismic refraction method is based on calculating the travel time of seismic waves refracted at the interfaces between different velocity layers of the subsurface Ayolabi et al 2009...

Know More
Seismic refraction a technique for subsurface

Calculations of depth by the seismic refraction method must be highly qualified for a number of reasons Nettleton 1940 p 255 Velocity does not necessarily increase with each successively deeper layer Also the velocity and thickness relationship must be such that there is a seg 173...

Know More
Techniques ofWater

Musgrave AW ed Seismic-refraction prospecting Tulsa Okla Society ofExploration Geophysicists p 197-216 Discussion of near-surface geologic conditions and the effects of varying shot depths on the interpretation of shallow refraction formulas Meridav Tsvi 1960 Nomograms to speed up seismic refraction...

Know More
Comparison of shallow seismic refraction interpretation

2006 Comparison of shallow seismic refraction interpretation methods for regolith mapping Exploration Geophysics Vol 37 No 4 pp 340-347...

Know More
Seismic Refraction FP Tabs site

Seismic Refraction Seismic Refraction surveys are typically carried out for depth to bedrock investigations The shot can be either an explosive or hammer source Interpex IXRefraX software is used to process the data Read More...

Know More
Seismic Refraction Open Ground

Introduction The seismic refraction method utilizes seismic waves travelling through different parts of the subsurface A seismic source is used to generate compressional waves which is measured by a seismograph and a series of evenly spaced sensors typically 12 24 48 or more geophones...

Know More
APPENDIX 6 SEISMIC REFRACTION METHOD

The seismic refraction method has not been used in the mining industry as widely as other geophysical methods Consequently we provide here only a description of the fundamental aspects of the method The reader requiring greater detail is referred to the descriptions given by Lankston 1990 A62 Acquisition and processing of seismic...

Know More
GEOPHYSICAL REPORT ON A SEISMIC REFRACTION SURVEY

Seismic refraction work was carried out over placer leases 3041 and 13224 located near Atlin on McKee Creek in the Atlin Mining Division RC during the period March 9th to Ilth 1986 The object of the survey was to locate a buried creek channel carrying placer...

Know More
Seismic Reflection Surveys SR Geophysical Surveys

The Seismic Reflection method uses seismic energy created by hammer impacts accelerated weight drops explosives or vibroseis trucks which gets reflected from geologic boundaries that have a velocity contrast Seismic Reflection is used extensively for large-scale exploration projects especially within the petroleum and mining industry...

Know More
Definition of seismic reflection method

Definition of seismic reflection method In this geophysical prospecting technique the structure of subsurface formations is mapped by making use of the times required for a seismic wave or pulse generated in the Earth by a near-surface explosion of dynamite or by other artificial sources to return to the surface after reflection from the...

Know More
High Resolution Seismic Refraction Tomography for

seismic recording system to make measurements along the mine face to be used with seismic refraction tomography to calculate P-wave velocity tomograms We used a small hand hammer as a seismic source to tap hand placed stud bolts and were able to record seismic data with frequencies to 2000Hz Using the irst arrival times...

Know More
GEOPHYSICAL METHODS IN EXPLORATION AND MINERAL

Reflection seismic methods provide fine structural detail and refraction methods provide precise estimates of depth to lithologies of differing acoustic impedance The refraction method has been used in mineral investigations to map low-velocity alluvial deposits such...

Know More
Seismic Refraction Method Used in Mining Exploration

SEISMIC REFRACTION METHOD USED IN MINING EXPLORATION Course English Technical Engineer Edgar Alcntara Trujillo Student Giancarlo Ayala Dorregaray What is Seismic Reflection Seismic refraction is a geophysical principle governed by Snell s Law Used in the fields of engineering geology geotechnical engineering and exploration geophysics seismic refraction traverses seismic...

Know More
Application of the Seismic Reflection Method in Mineral

makes the method capable of imaging deep targets and structures eg Malehmir et al 2012a and references therein This benefit led the mining industry to take advantage of the method and seek solutions to their prospecting problems with the seismic reflection method Malehmir et...

Know More
Get Solutions & Quotation