- Type of paper
: Paper in book
Title: Use of geotextile for tunnels and bridges
- Authors:
- Jašarević, Ibrahim (18195)
- Editors
- Babić, Branimir
Publisher: "Vartilen" - industrija poliestera
Year: 1994
Pages: from 71 to 76
Language: hrvatski
Summary: The use of insulation strips and geotextile for tunnels and
bridges, i.e. within systems for protecting these structures or their
elements against water action, is presented.
Keywords: tunnel waterproofing, bridge waterproofing, waterproofing membranes (strips), geotextile.
- Type of paper
: Paper in journal
Title: A pore pressure model for cyclic straining of clay
- Authors:
- Matasović, Neven (121726)
- Vučetić, Mladen
Journal: Soil and Foundations
Number: 3
ISSN: 0723-2632
Volume: 32
Year: 1992
Pages: from 156 to 173
Number of references: 29
Language: engleski
Summary: The paper focuses on the development and modelling
ofresidual cyclic pore water pressure, 'u' in clay during undrainedcyclic
strain-controlled loading. Data obtained from a series ofNGI type cyclic
simple shear tests were employed. In addition tothe amplitude of cyclic
shear strain, the number of cycles, N,and the overconsolidation ratio, OCR,
a new component isincorporated the conventional characterization of 'u'.
This newcomponent is the volumetric threshold shear strain, of clayeysoil,
below which for all practical purposes 'u' does notdevelop.
Keywords: clay, dynamic, pore pressure, threshol strain, cyclic, modelling, simple shear
- Type of paper
: Paper in journal
Title: Relation between mineralogical - petrographical
composition and geotechnical properties of flisch layers
- Authors:
- Jašarević, Ibrahim (18195)
- Kovačević, Meho-Saša
Journal: Građevinar
Volume: 46
Year: 1994
Pages: from 85 to 94
Language: hrvatski
Summary: The results of engineering-geological, mineralogical,
petrographical and geotechnical (laboratori and in situ) investigations of
flysch layers are presented in the paper. These investigation were
performed over the last fifteen years in the coastal areas of the Adriatic
in the Republic of Croatia. The information collected enabled establishment
of number of corelations between mineralogical-petrographical composition
and geotehnical properties of flysch layers. Additional investigations are
currently carried out to obtain further information and the established
correlations are critically analyzed. The investigations performed and the
relations established enable development of more rational solutions at the
stage of evaluation, design and construction of structures in areas
sharacterizes by flysh formations.
Keywords: flysh, correlations: mineralogical-petrographical and geotehnical
- Type of paper
: Paper in proceedings
Title: Long water conduit tunnels of small cross section
- Authors:
- Jašarević, Ibrahim (18195)
- Srkoč, Miljensko
- Bilajbegović, A.
- Solarić, N.
- Editors
- Wittke, W.
Proceedings title: Proceedings on 7th International Congress on Rock Mechanics
Language: engleski
Place: Rotterdam, Holand
Year: 1991
Pages: from 1309 to 1315
Meeting: 7th International Congress on Rock Mechanics
Held: from 09/01/91 to 09/02/91
Summary: The choice of the excavation technology is very
important inthe design of the relatively long water conduit tunnels
(10-15km) having a small cross sectional area (up to 20 m2). Theexcavation
technology either by blasting or by machine (TBM)should be based on the
previously performed engineeringgeological, geophysical and geotechnical
investigations. Theelastic and plastic analyses of stress states around the
tunnelwere performed using the program package Rheo-Staub. Increase
inreliability of surveying (presisely determining direction of thetunnel
excavation) is described in the paper. All investigationsand analyses were
perfomed at the water conduit tunnel Krivaja -Oskova (L = 13 km).
Keywords: long water conduit tunnels, small cross sectional area, machine (TBM), technology excavation
- Type of paper
: Paper in proceedings
Title: Using tunnels and underground openings: A solution to
Dubrovnik's traffic dilemma
- Authors:
- Jašarević, Ibrahim (18195)
- Legac, I.
- Srkoč, Miljensko
- Franetović, Ž.
- Editors
- Mikoš, B.
Proceedings title: Prvo mednarodno posvetovanje o gradnji predorov in podzemnih prostorov
Language: engleski
Place: Ljubljana, Slovenija
Year: 1992
ISBN/ISSN: 624.19.063082
Pages: from 201 to 211
Meeting: Prvo mednarodno posvetovanje o gradnji predorov in podzemnih prostorov
Held: from 09/16/92 to 09/18/92
Summary: Unlike the old solution with at-grade traffic and
open-airparking lots, whereby the route would cut through a number
ofexisting major road services and infrastructural facitities, thenew
solution enables transferring the parking garage structuresinto underground
space.
According to this new solution, the noise and pollution
willsignificantly be reduced in the new commercial and nauticalcenter of
Gruž. Technical elements of the solution, indispensablefor analyzing the
rationality of placing the garage intounderground space, are also presented
in this paper.
Keywords: tunnel and parking garages, engineering - geological and geotechnical characteristics, structure of underground parking garages, rationality
- Type of paper
: Paper in proceedings
Title: Development and use Micro_Reinforced Shotcrete in Tunnels
- Authors:
- Jašarević, Ibrahim (18195)
- Ukrainczyk, Velimir
- Editors
- Simović, Veselin
- Blažević, Z.
- Grašo, A.
- Marušić, Juraj
- Mihelčić, D.
- Perić, T.
- Varička, F.
Proceedings title: Sabor hrvatskih graditelja-graditeljstvo u strategiji obnove i razvoja Hrvatske
Language: hrvatski
Place: Crikvenica, Hrvatska
Year: 1993
ISBN/ISSN: 953-96085-0-3
Pages: from 259 to 276
Meeting: Sabor hrvatskih graditelja
Held: from 09/30/93 to 10/02/93
Summary: Theoretical assumptions and a technological solution for
theprimary support work in tunnel is presented. According to theproposed
solution, the bearing structure is formed of the rock,reinforced byu rigid
prestressed anchors and made to actcompositely with the shotcrete layer
micro-reinforced bypolypropylene fibers. Results of laboratory tests
performed insitu on completed structures are presented. The proposed
solutionenables savings of approx. DM 1.48 million per km of the tunnelwhen
compared to traditional solutions.
Keywords: micro-reinforced shotcrete, tunnel, technological solution, prestressed anchors, laboratory testing, polypropylene fiber
- Type of paper
: Paper in proceedings
Title: Significance of multipurpose underground spaces in the
renewal and development of Croatia
- Authors:
- Jašarević, Ibrahim (18195)
- Editors
- Radić, Jure
Proceedings title: Zbornik radova "Graditelji u obnovi hrvatske"
Language: hrvatski
Place: Zagreb
Year: 1992
Pages: from 345 to 352
Meeting: Radni sabor: Graditelji u obnovi Hrvatske
Held: from 06/25/92 to 06/27/92
Summary: A more rational approach to the production of
constructionmaterials is a significant prerequisite for the renewal
anddeevelopment of the infrastructural, housing and commercialstructures
destroyed during the war. In the light of the existingregional development
plans and considering the increasing trendstowards greater environment
protection as well as the quantity(volume) and price of such materials in
relation to optimumtransport distances, it is indispensable to resort to
theconstruction of multipurpose underground spaces and to use thusobtained
stone material for other construction purposes. Apossibility of the
rational stone material extraction in the areaof Dubrovnik is presented in
the paper.
Keywords: technological solution excavation, rationality
- Type of paper
: Paper in proceedings
Title: Some correlations between mineralogical-petrografical
composition and geotechnical properties of flysch layers
- Authors:
- Jašarević, Ibrahim (18195)
- Kovačević, Meho-Saša
- Lovinčić, Mirjana
- Editors
- Anagnostopulos, A.
- Schlosser, F.
- Kalteziotis, N.
- Frank, R.
Proceedings title: Geotechnical Engineering of Hard Soils-Soft Rocks
Language: engleski
Place: Rotterdam, Holand
Year: 1993
ISBN/ISSN: 90-5410-3442
Pages: from 159 to 167
Meeting: International Symposium Geotechnical Engineering of Hard Soils-Soft Rocks
Held: from 09/20/93 to 09/23/93
Summary: The results of engineering-geological,
mineralogical,petrographical and geotechnical (laboratory and in
situ)investigations of flysch layers are presented in the paper.
These investigations were performed over the last fifteenyears in the
coastal areas of the Adriatic in the Republic ofCroatia.
The information collected enabled establishment of a numberof
correlations between mineralogical-petrographical compositionand
geotechnical properties of flysch layers.
Additional investigations are currently carried out to obtainfurther
information and the established correlations arecritically analyzed.
The investigations performed and the relations establishedenable
development of more rational solutions at the stage ofevaluation, design
and construction of structures in areascharacterized by flysch formations.
Keywords: engineering-geological, mineralogical, petrographical and geotechnical investigations of flysch layers, statistical analysis, correlation coefficient
- Type of paper
: Paper in proceedings
Title: Selection of Method for Seismic Slope Stabiliti Analysis
- Authors:
- Matasović, Neven (121726)
- Editors
- Prakash, Shamsher
Proceedings title: Second Int. Conf. on Recent Advances in Geotechnical Earthquake Engineering
Language: engleski
Place: St.Louis, USA
Year: 1991
Pages: from 1057 to 1062
Meeting: Second International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dinamics
Held: from 03/11/91 to 03/15/91
Summary: The seismic stability on natural slopes in clayey
materialsis a subject about which much uncertainty still exists.Therefore,
selection of the method for the seismic slopestability analysis is an
important part of solving the problem.In this paper the basic elements of
the pseudo-static method, thesliding block method and the Ishihara's method
are discussed. Acase history of seismic stability analysis of an Adriatic
coastflysch slope has been employed to evaluate the applicability
andreliability of these methods. The slope is treated as an infiniteslope.
Although no definitive conclusions can be drawn from asingle case history
study, results may be used in futureevaluations of seismic stability of
similar slopes in cohesivematerials.
Keywords: seismic stability of natural slopes, clayey materials, slope stability analysis, flysch slope
- Type of paper
: Paper in proceedings
Title: Methodology for determining geotechnical parameters for
calculation of primary support-work of great underground rooms
- Authors:
- Jašarević, Ibrahim (18195)
- Editors
- Quqing, Gao
- Cangshi, Pan
- Mi, Zhang
Proceedings title: Proceedings on Tunnel and Underground Works Today and Future
Language: engleski
Place: Ohengdu, China
Year: 1990
ISBN/ISSN: 7-80003-112-8
Pages: from 479 to 488
Meeting: International Congress The ITA Annual Meeting
Held: from 09/03/90 to 09/07/90
Summary: In this paper, some experiences of the Civil
EngineeringInstitute's experts are presented in relation to a number
ofunderground structures where investigation works, calculationsand
technical observations (auscultations) during constructionhave been
performed. On the basis of these long-lastinginvestigations and analyses
(that started in 1970), themetodology for determining geotechnical
paarmeters throughapplication of the so called "back analysis" has been
proposed.
Keywords: metodology for determining geotechnical parameters, underground structures, great cross-section, back analysis
Other: Zbornik (vol 2 i 3) tiskan 1991 godine
- Type of paper
: Paper in proceedings
Title: Influence of statistics on the determination of
correlation coefficients of geotechnical properties of certain rocks
- Authors:
- Jašarević, Ibrahim (18195)
- Kovačević, Meho-Saša
- Cerić, Anita
- Editors
- Jašarević, Ibrahim (18195)
Proceedings title: Primjena osobnih računala u geotehnici
Language: hrvatski
Place: Zagreb
Year: 1992
Pages: from 1 to 32
Meeting: Primjena osobnih računala u geotehnici
Held: from 04/21/92 to 04/24/92
Summary: To obtain a more detailed comparison with results of
otherautors, the correlations between individual mechanical propertiesof
rock formations were made. These correlations are necesseryfor rock mass
classifications (Q i RMR)
Keywords: regressions analysis, correlation coefficient, leimstones
Other: Seminar održan 22.-25.04.1992 godine i 21.-24.04.1992 godine
- Type of paper
: Paper in proceedings
Title: Application of fibre reinforced shotcrete anchoring lining
in tunnels
- Authors:
- Jašarević, Ibrahim (18195)
- Kovačević, Meho-Saša
- Editors
- Mavar, Ramon
Proceedings title: Zbornik radova
Language: hrvatski
Place: Zagreb
Year: 1994
Pages: from 401 to 410
Meeting: Geotehnika prometnih građevina
Held: from 10/05/94 to 10/08/94
Summary: In the paper is presented the analysis of lining system,
Which consist of fibre reinforced shotcrete layers (FRS) cojugated with
anchors reinforced rocks of IV rock kategory.
The safety factor and states of stress and strains have been computed by
means of FLAC program, with supposion of interaction of primary layer and
reinforced rock. The time dependent mechanical characteristics of
supporting system were implemented.
Keywords: tunnels, analysis of lining system, fibre reinforced shotcrete, interaction, FLAC program
- Type of paper
: Paper in proceedings
Title: Rationalization of tunnel lining dupport system in very
poor categories
- Authors:
- Jašarević, Ibrahim (18195)
- Kovačević, Meho-Saša
- Editors
- Mavar, Ramon
Proceedings title: Zbornik radova
Language: hrvatski
Place: Zagreb
Year: 1994
Pages: from 411 to 420
Meeting: Geotehnika prometnih građevina
Held: from 10/05/94 to 10/08/94
Summary: Technical solution, as well as numerical analysis of tunnel
lining support system consisting of fibre reinforced shotcrete layer
anchored with V category rock massive, are presented.
The safety factor and states of stresses and strains have been computed by
means of FLAC program, with supposion of interaction of primary layer and
reinforced rock. The time dependent mechanical characteristics of
supporting system were implemented.
Keywords: tunnels, tunnel lining suport, fibre reinforced shotcrete, interaction, numerical analysis, rationalization
- Type of paper
: Paper in proceedings
Title:
- Authors:
- Ukrainczyk, Velimir
- Jašarević, Ibrahim (18195)
- Editors
- Krokeborg, J.
Proceedings title: Proceedings
Language: engleski
Place: Alesund, Norway
Year: 1994
Pages: from 397 to 404
Meeting: 3rd Symposium on Strait Crossings '95
Held: from 06/12/94 to 06/15/94
Summary: Steel fibre reinforced shotcrete has been extensively used
in tunnels for underground support for better rock quality, and in
combination with bolts for poorer rock quality. In this paper are presented
results of the laboratory research and field teststo investigate the
possibility of using the polypropilene (PP) fibres instead of steel ones.
The laboratory research included testing the properties of different sorts
and shapes of PP fibres, bond properties (pull-out tests) of PP fibres from
different concrete mixes and standard bending test of concrere prisms. With
obrtained data the computer analysis werw conducted, for different stages
of construction, by means of FLAC computer program, which included the
interaction of primary layer and reinforced rock. For the sake of
comparison test fields on the site werw exwcuted with steel and PP fibres
and steel reinforcing meshes. The bearing capacities of shortcrete with PP
fibres, tested in situ with hydraulic jacks, were of the same order as for
shortcrete with steel fibres or reinforcing meshes.
Keywords: steel fibre reinforced shortcrete, underground support, better rock quality, polypropylene fibres (PP)
- Type of paper
: Paper in proceedings
Title:
- Authors:
- Jašarević, Ibrahim (18195)
- Izetbegović, Jadranko
- Radujković, Mladen
- Editors
- Manoliu, I.
Proceedings title: Proceedings
Language: engleski
Place: Bucharest
Year: 1995
Pages: from 593 to 602
Meeting: 10th Danube - European Conference on Soil Mechanics and Foundation Engineering
Held: from 09/12/95 to 09/15/95
Summary: Transport solutions presently used in urban areas involve
designing and building high-capacities, and the emphasis is increasing
placed on providing more parking space in downtown areas. Considering the
lack of undeveloped space on the ground surface and the very high cost of
construction land, the construction of tunnels and underground structures
is very often considered as the most resonable solution to urban transport
problems.
Keywords: rationality of underground structures, rock mass classification, analysis of stress and strain, rationality of excavation and primary support
- Type of paper
: Paper in proceedings
Title: Contribution to the rational design and construction of
underground structures
- Authors:
- Jašarević, Ibrahim (18195)
- Izetbegović, Jadranko
- Radujković, Mladen
- Editors
- Sršen, Mate
Proceedings title: Zbornik radova
Language: hrvatski
Place: Zagreb
Year: 1995
Meeting: Prvi hrvatski kongres o cestama
Held: from 10/23/95 to 10/25/95
Summary: Transport solutions presently used in urban areas involve
designing and building high-capacity city arteries, and the emphasis is
increasing placed on providing more parking space in doyntoyn areas.
Considering the lack of undeveloped space on the ground surface and the
very high cost of construction of tunnels and underground structures is
very often cnsidered as the most resonable solution to urban transport
problems.
At that, it is significant to take into account regional-planning and
traffic aspests as well as the results obtained during engineering-geology
and geotechnical investigation, as they greatly influence the architectonik
and structural concept of underground structures. In addition, an adequate
attention must also be paid to enviromental aspects (ground-water
pollution, exhaust gases, etc.) and, sinally, to the rationality at the
design and construction stages.
These investigations served as a basis for establishing the correlation
between the excavation and primary support unit price and the
cross-sectional area or excavation volume. Finally, a complex correlation
between the unit price and the cross-sectional area and excavation volume
was established and presented in the form of diagrams to facilitate its
use.
Keywords: underground structures, engineering-geology and getechnical investigations, architectonik and structural concept, rational design and construction, corelation, escavation and primary support.
- Type of paper
: Ph.D.
Title: Seismic response of composite horizontally - layered soil
deposits
Faculty: University of California. Civil Engineering Department UCLA
Author: MATASOVIĆ NEVEN
Date of defense: 06/15/93
Language: engleski
Number of pages: 452
Summary: A new method is developed for the evaluation of the
seismicresponse of horizontally layered saturated soil deposits composedof
layers of sand and clay, i.e., composite soil deposits. Themethod is
implemented in a computer program named D-MOD, whichcombines a newly
developed generalized cyclic degradation-porewater pressure generation
model for clay, a modified cyclicstress degradation model for sand, and a
modified general stress- strain model for soils.
Keywords: seismic soil response, composite soil deposits, likuefaction, numerical analyses
