The seismic refraction method is based on these two facts. This method helps us to determine the types of soil and the approximate depth of boundaries of strata or the bedrock. The method consists of inducing …

Many researchers have used seismic refraction in quarry/mining studies. Kausarian et al. (2014) conducted seismic refraction survey to characterize rock mass at a quarry. Results obtained have shown there are five zones of weathered granite, which was divided by the range of refractive wave velocity (Vp). ... Seismic refraction method is …

The seismic refraction survey is a very important geophysical technique used in the investigation of subsurface characteristics. This is why this study was carried out to emphasize the ability of ...

Seismic characterization and imaging of soils can be achieved using a wide variety of methods addressing wave phenomena including refraction and reflection of pressure waves and dispersion of surface waves (Steeples, 2005).High amplitude surface waves dominate the seismograms and there is an increased interest in their application for …

Refraction Seismic Method Intercept times and apparent velocities; Critical and crossover distances; Hidden layers; Determination of the refractor velocity and depth; The case of dipping refractor Inversion methods: "Plus-minus" method; Generalized Reciprocal Method; Travel-time continuation. Reading: Reynolds, Chapter 5 Shearer, Chapter 4

Abstract Application of seismic refraction techniques to selected complex mining exploration problems has been attempted using special procedures for operation and …

birth of seismic methods for exploration of ore bodies and petroleum in the early part of the 20th century, progressive technological advancements have ensured that the seismic …

Earth exploration - Seismic Refraction, Waves, Surveys: 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 …

The seismic refraction method has found new applications in crustal geophysics, reconnaisance surveying in sedimentary basins, structural engineering, and mining geophysics. This review brings together the history of the development of the method, a discussion of the basic theory, field procedures and instrumentational …

The reflection seismic method is the most commonly used technique for imaging the subsurface (Ashcroft, 2011, Sheriff and Geldart, 1995).The technique involves the transmission of a sound wave into the subsurface, which is then refracted and reflected at the interface between rocks of different physical properties according to the acoustic …

The marine refraction method can map the bedrock depth in areas not accessible by drilling platforms, whether due to safety, logistical or environmental issues. The refraction method involves measuring the shortest time required for an induced seismic pulse to travel from the source location to a series of receivers.

ASTM (1998), Using the Seismic Refraction Method for Subsurface Investigation, Designation No. D 5777-95. Fowler, C.M.R. (1990), The Solid Earth: an Introduction to Global Geophysics, Cambridge University Press. Geometrics, Inc. (2005), SeisImager/2D Seismic Refraction Data Analysis Software Manual and Examples Booklet.

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 …

In this paper the Single Geophone Refraction Profiling (SGRP) method is described. It is a fast qualitative tool for preliminary reconnaissance, based on the seismic refraction and reflection methods.

In this study, surface seismic refraction method together with cone penetration test were used to provide 2-dimensional (2D) information of the subsurface geological features.

of refraction seismic surveying into one volume for the Society of Exploration Geo- physicists. An effort was made to make the information more easily available to those wishing to work with refraction methods. This volume contains a series of ... Some Applications of Seismic Refraction Techniques in Mining Exploration 522

Seismic refraction methods fail at this site because of an intra-alluvial velocity inversion. ... Cavity detection using high-resolution seismic reflection methods. Mining Engineering, 40: 115–119. Büker, F., A. G. Green, and H. Horstmeyer, 1998. Shallow 3-D seismic reflection surveying: Data acquisition and

Near-surface seismic refraction applied to exploring subsurface clay layer at a new mining area in southeast Cairo, Egypt A. K. Abd El-Aal & A. A. Mohamed Received: 10 September 2008 /Accepted: 20 January 2009 /Published online: 7 March 2009 ... The seismic refraction method requires the increase of seismic velocity with depth. It is …

The seismic refraction method has found new applications in crustal geophysics, reconnaisance surveying in sedimentary basins, structural engineering, and …

Seismic methods are increasingly used by this industry for a wide range of commodities including base metals, uranium, diamonds, and precious metals. Seismic methods provide high-resolution images of geologic …

From this travel time data, seismic velocities and layer depths can be calculated. Seismic refraction remains the preferred method for accurately mapping the depth to competent bedrock under most conditions. Typical applications of seismic refraction include: Bedrock profiling and locating of faults and fracture zones;

When seismic methods are used in these communities, they tend to emphasize the refraction methods over the reflection methods. Advantages and disadvantages of seismic methods Seismic methods have several distinct advantages as well as disadvantages compared to other geophysical methods (Table 1). The seismic …

The methodology uses different analysis methods on the same dataset, i.e., conventional seismic refraction (SR) to determine compressional-wave velocity (Vp) and multichannel analysis of surface ...

Seismic refraction methods and Electrical Resistivity Tomography (ERT) are commonly used as geophysical methods for rock mass characterization and ground subsurface for excavation assessment ...

This paper considers the joint use of two popular geophysical methods (fracture-induced electromagnetic radiation and seismic refraction tomography) to assess the stress-state in underground mine ...

The seismic-refraction method measures the time a seismic-energy pulse takes to travel from a source point to several receivers after being redirected by one or more subsurface interfaces. Depths to hydrogeologic contacts and types of geologic material can be estimated using data-based seismic-velocity discontinuities and magnitudes, …

Reflection and refraction seismic methods contrast com-pressional or shear wave velocities of different materials. Electrical methods depend on the contrasts in electrical ... for quarrying and mining operations, excavations, measuring the effects of traffic on sensitive equipment, and measuring the effects of aircraft (sonic vibrations) on ...

Seismic Refraction Method Used in Mining Exploration - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. Seismic refraction is a geophysical method that uses the refraction of seismic waves to characterize subsurface geological conditions. It involves using an energy source like an …

There are two types of seismic surveys. Refraction ie 'critical refraction' which is useful for determining velocities of layers; Reflection, which is useful for determining layers and structure; In seismic surveys we can use geometry and travel time of waves to determine structure and velocity. Today we are going to focus on refraction …

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.