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**Harvard**

Jansson, A. och Eriksson, M. (2018) *Assessment of the Swedish Standard for blasting induced vibrations*. Göteborg : Chalmers University of Technology (Examensarbete - Institutionen för mekanik och maritima vetenskaper, nr: 2018:54).

** BibTeX **

@mastersthesis{

Jansson2018,

author={Jansson, August and Eriksson, Mattis},

title={Assessment of the Swedish Standard for blasting induced vibrations},

abstract={Since 1989 the Swedish Standard for blasting induced vibrations has been based
primarily on distance and overburden. However, there is an uncertainty about the
fundamentals which the Standard is based on, making room for optimization. The
thesis aims to evaluate the Swedish Standard for blasting induced vibrations, by
studying velocity- and frequency response of the governing parameters of wave propagation.
A parametric study with numerical models was conducted using finite element
method. The parametric study was divided into material and geometrical properties
such as degree of saturation, Poisson’s ratio, Young’s modulus, depth of overburden
layer, distance from blast ,and angle of incidence. A poroelastic material model
was created by coupling the elastic properties of the solid material with the water
stored within the porous structure. The poroelastic material model resulted in
velocity- and frequency responses which were comparable with the guidance levels
of the Swedish Standard.
In conclusion, distance and overburden are applicable parameters. However, the
blasting induced vibration is sensitive to changes in degree of saturation, Poisson’s
ratio, depth of the overburden surface layer, and to the angle of incidence. As
the distance between the blast and the measurement point increases, the frequency
range in the vibration was lowered and the risk for damage increases, as buildings
are more susceptible to damage at lower frequencies. The P-wave is dominant if the
blast is located below the building, however, if the angle of incidence changes, the
Rayleigh wave becomes dominant. The frequency response of the Rayleigh wave is
lower than for P-waves, thus guidance levels may be set differently depending on
which is the dominant wave. A frequency based analysis generates the possibility
to combine distance, overburden, material-, geometrical- and possible unidentified
parameters, thus simplifying the method of establishing guidance levels for blasting
induced vibrations in the soil structure.},

publisher={Institutionen för mekanik och maritima vetenskaper, Dynamik, Chalmers tekniska högskola},

place={Göteborg},

year={2018},

series={Examensarbete - Institutionen för mekanik och maritima vetenskaper, no: 2018:54},

keywords={Blasting, vibrations, Wave propagation, Poroelasticity, Rock blasting,},

}

** RefWorks **

RT Generic

SR Electronic

ID 255554

A1 Jansson, August

A1 Eriksson, Mattis

T1 Assessment of the Swedish Standard for blasting induced vibrations

YR 2018

AB Since 1989 the Swedish Standard for blasting induced vibrations has been based
primarily on distance and overburden. However, there is an uncertainty about the
fundamentals which the Standard is based on, making room for optimization. The
thesis aims to evaluate the Swedish Standard for blasting induced vibrations, by
studying velocity- and frequency response of the governing parameters of wave propagation.
A parametric study with numerical models was conducted using finite element
method. The parametric study was divided into material and geometrical properties
such as degree of saturation, Poisson’s ratio, Young’s modulus, depth of overburden
layer, distance from blast ,and angle of incidence. A poroelastic material model
was created by coupling the elastic properties of the solid material with the water
stored within the porous structure. The poroelastic material model resulted in
velocity- and frequency responses which were comparable with the guidance levels
of the Swedish Standard.
In conclusion, distance and overburden are applicable parameters. However, the
blasting induced vibration is sensitive to changes in degree of saturation, Poisson’s
ratio, depth of the overburden surface layer, and to the angle of incidence. As
the distance between the blast and the measurement point increases, the frequency
range in the vibration was lowered and the risk for damage increases, as buildings
are more susceptible to damage at lower frequencies. The P-wave is dominant if the
blast is located below the building, however, if the angle of incidence changes, the
Rayleigh wave becomes dominant. The frequency response of the Rayleigh wave is
lower than for P-waves, thus guidance levels may be set differently depending on
which is the dominant wave. A frequency based analysis generates the possibility
to combine distance, overburden, material-, geometrical- and possible unidentified
parameters, thus simplifying the method of establishing guidance levels for blasting
induced vibrations in the soil structure.

PB Institutionen för mekanik och maritima vetenskaper, Dynamik, Chalmers tekniska högskola,PB Institutionen för mekanik och maritima vetenskaper, Dynamik, Chalmers tekniska högskola,

T3 Examensarbete - Institutionen för mekanik och maritima vetenskaper, no: 2018:54

LA eng

LK http://publications.lib.chalmers.se/records/fulltext/255554/255554.pdf

OL 30