- Type of paper
: Paper in proceedings
Title: Possibilities of using Makeshift Techniques in
Construction of Root Piles
- Authors:
- Čorko, Damir
- Marić, Božica (145714)
- Lovrenčić, Davorin
- Svirčev, Simo
Proceedings title: Proceedings of XIII Int. Conf. on Soil Mechanics and Foundation Engineering
Language: engleski
Place: New Delhi
Year: 1994
Pages: from 0 to 0
Meeting: XIII International Conference on Soil Mechanics and Foundation Engineering
Held: from 01/05/94 to 01/10/94
Summary: Root piles can be effectively used in an array of
structuresin order to resolve a variety of technical problems. Theequipment
used in their installation is relatively simple.Despite this fact, when
taking a wider view, on eis confrontedwith the conclusion they are not
applied to the exent that oughtto be expected. The reason is partly the
price of theinstallation equipment commonly in use and partly in
theunfamiliarity with possibilities of adapting other, otherwiseoften
avaiable and cheaper technologies.
Keywords: root piles, makeshift techniques, bored piles, driven piles 3. ČORKO D.,LOVRENČIĆ D.: Prikaz zaštite građevne jame pilotima malog promjera. Rasprave prvega posvetovanja slovenskih geotehnikov Bled, 22-23. 09.1993, 2, 5-8 Sažetak: Pilot malog promjera (mikropiloti) mogu se koristiti za racionalno rješenje raznih geotehničkih problema. Posebna pogodnost je što se mogu izvoditi i priručnim tehnologijama prilagođenim konkretnim problemima, ali i tehnološkim mogućnostima izvoditelja. U članku je prikazana izvedba zaštite građevinske jame i susjednih objekata izvedbom čeličnih mikropilota, s posebnim osvrtom na proračune takovih konstrukcija. Ključna riječ: Zabijeni mikropiloti, građevne jame, zaštita. Title: Protection of the Excavations by mins of small Diameters Piles. Summary: Small diameter piles could be effectively in order to solve a number of geotechnical assignments. Their practical advantage lines in the fact that they can be installed using makeshift techniques wich could be adjusted to a specific site or to the technological means of a contractor. The paper deals with the protections of the excavation and adjacent buildings by means of small diameter steel piles. Static analysis of the retaining structure is described. Keywords: Diven root piles, excavation, protection.
- Type of paper
: Paper in proceedings
Title: Protection of the Excavations by mins of small Diameter
Piles
- Authors:
- Čorko, Damir
- Lovrenčić, Davorin
Proceedings title: Rasprave prvega posvetovanja slovenskih geotehnikov
Language: engleski
Place: Bled, Slovenia
Year: 1993
Pages: from 5 to 8
Meeting: Prvo posvetovanje slovenskih geotehnikov
Held: from 09/22/93 to 09/23/93
Summary: Small diameter piles could be used effectively in
order tosolve a number of geotechnical assignments. Their
particularadvantage lies in the fact that they can be installed
usingmakeshift techniques wich could be adjusted to a specificsite or to
the technological means of a contractor.
The paper deals with the protection of the excavation and
adjacent buildings by means of small diameter steel piles.Static
analysis of the retaining structure is described.
Keywords: driven root piles, excavation, protection
- Type of paper
: Paper in proceedings
Title: Ground anchor bearing capacity improvement by blasting in
bore-hole
- Authors:
- Krajcer, Marijan
- Muhovec, Ivan (151325)
- Pranjić, Jakov
Proceedings title: Proceedings of Third Int. Conf. Case Histories in Geotechnical Engineering
Language: engleski
Place: St.Louis, USA
Year: 1993
Pages: from 0 to 0
Meeting: Third International Conference on CASE HISTORIES IN GEOTECHNICAL ENGINEERING
Held: from 06/01/93 to 06/05/93
Summary: The cylindrical ground anchors has gained wide acceptance
as aneconomical and highly versatile anchoring method over the pastdecade,
particularly due to fast and simple performance by usingthe soil/rock
boring and grouting procedure. The paper isconcerning with the set of data
and results which are collectedafter the in situ investigations of some 30
short verticalanchors installed in clay and in silty sand, as well. The
bearingcapacity of cylindrical and spherical anchors were also compared.
Spherical cavity at the bottom of the borehole was produced bycontroled
point blasting effect, which was studied in the firstplace. Finally, the
proper analytical method for estimation ofthe ultimate uplift capacity was
established, This model hasshowed a good agreement with field test pullout
results.
Keywords: ground anchor, cylidrical/spherical anchor, anchor bearing capacity, spherical cavity, blasting effect
- Type of paper
: Paper in proceedings
Title: Pullout resistance formula of short vertical spherical
anchors in soil
- Authors:
- Muhovec, Ivan (151325)
- Krajcer, Marijan
Proceedings title: Proceedings on III Int. Conf. on Soil Mechanics and Foundation Engineering
Language: engleski
Place: New Delhi
Year: 1994
Pages: from 0 to 0
Meeting: XIII International Conference on Soil Mechanics and Foundation Engineering
Held: from 01/05/94 to 01/10/94
Summary: In this paper an interaction mechanism anchor-soil is
describedfor the case of short vertical spherical anchors installed in ac-í
soil.
Commencement is made with the eqiulibrium state theory of Vesić(1965) for
the case of expanding spherical cavity located at theshallow depth under
the soil surface.
The bearing capacity formulas Vesić derived separately forcohesionless and
for cohesive soils. It is shown in the paper howthe above stated work of
Vesić has been adapted to the sphericaltail anchors. The ultimate bearing
capacity equation, which isgiven for such anchors, is derived for a c-í
soil.
Keywords: ground anchor, cylidrical/spherical anchor, anchor bearing capacity, spherical cavity, blasting effect
- Type of paper
: Paper in proceedings
Title: Importance of Technical Diagnosis
- Authors:
- Muhovec, Ivan (151325)
- Editors
- Radić, Jure
Proceedings title: Zbornik radova Drugog radnog sabora "Graditelji u obnovi Hrvatske"
Language: hrvatski
Place: Brijunski otoci, Hrvatska
Year: 1993
Pages: from 0 to 0
Meeting: Drugi Radni sabor "Graditelji u obnovi Hrvatske"
Held: from 10/13/93 to 10/15/93
Summary: The forthcoming renewal of Croatia will be realized mostly
in twomain civil engineering ways: 1) Construction of new facilities(new
buildings) and 2) Remedial works of damaged and neglectedfacilities. Both
of these civil engineering activities will be,without doubt, quite
expensive, but concerning remedial worksthere is also involved an
increasing risk of partial or entirefailure. This could happen if the
concept of remedial works wouldbe based on a wrong diagnosis, or even
without any diagnosis.
Keywords: technical diagnosis, renewal, remedial work
- Type of paper
: Paper in proceedings
Title: Bridge Foundation Renewals
- Authors:
- Muhovec, Ivan (151325)
- Nagy, Zvonimir
- Editors
- Radić, Jure
Proceedings title: Zbornik radova Radnog sabora "Graditelji u obnovi Hrvatske"
Language: hrvatski
Place: Brijunski otoci, Hrvatska
Year: 1992
Pages: from 221 to 227
Meeting: Radni sabor "Graditelji u obnovi Hrvatske"
Held: from 06/25/92 to 06/27/92
Summary: During the war devastations, which still last in the
Republic ofCroatia, we are witnesses of the unprecedented suffering of
ourpeople, cultural and material dgoods. Many of the economicfacilities are
destroyed or demaged, particularly the trafficrouts, bridges and
accompaining facilities and equipment.All these structures will require
extensive, well organized butquite expensive renewal. The proper
restauration of the existingbridge foundations and construction of the new
ones, willundoubtedly have significantly role in that renewal works.
Thebasic designations of the accessment to those activities arecomprised in
this paper.
Keywords: war devastation, bridge, renewal, bridge foundation
- Type of paper
: Paper in proceedings
Title: The Aplication of Comprised Risk Concept
- Authors:
- Muhovec, Ivan (151325)
- Editors
- Radić, Jure
Proceedings title: Zbornik radova Radnog sabora "Graditelji u obnovi Hrvatske"
Language: hrvatski
Place: Brijunski otoci, Hrvatska
Year: 1992
Pages: from 83 to 86
Meeting: Drugi Radni sabor "Graditelji u obnovi Hrvatske"
Held: from 06/25/92 to 06/27/92
Summary: The comprised risk concept, considered as a way of
thinking, canbe generally applied to the broad range of the human
activities,but in the paper it will be considered from the civil
engineeringpoint of view. In such a severe situation, as it is in
theRepublic of Croatia right now, when the country devastated by thewar has
to be rapidly but responsibly renovated, this concept isgeting a
strategical importance. Its essential meaning is reducedto the search of
the optimal measure among the main categorieswhich go along the certain
civil engineering project fulfilment.The comprised risk concept ought to be
of the special importanceat the traffic routes construction.
Keywords: comprised risk, devastation, renewal
- Type of paper
: Paper in proceedings
Title: Small Diameter Piles as means of Reinforcing and Remedial
of Foundations
- Authors:
- Čorko, Damir
- Lovrenčić, Davorin
- Editors
- Radić, Jure
Proceedings title: Zbprnik radova Radnog sabora "Graditelji u obnovi Hrvatske"
Language: hrvatski
Place: Brijunski otoci, Hrvatska
Year: 1992
Pages: from 265 to 270
Meeting: Radni sabor "Graditelji u obnovi Hrvatske"
Held: from 06/25/92 to 06/27/92
Summary: Authors of the paper are attempting to illustrate
thepossibility of forming small-diameter piles as means ofreinforcing and
remedial of foundations by the use of readilyavailable resources and
equipment.
Many civil engineering firms or enterpreneurs own all sortsof drilling
tools and, as far as we know, these happen to bethe most important part of
the equipment required to realizesimilar interventions. Providing at the
same time an adequatetechnique of poring the concrete for filling the
piles, weconsider that, technologically speaking, there is no realobstacle
that such piles be in reality formed.
Keywords: root piles, constructions piles, remedial works, reinforcing foundation
- Type of paper
: Paper in proceedings
Title:
- Authors:
- Verić, Franjo (74774)
- Pršić, Marko
- Kuspilić, Neven
Proceedings title: Proceeding Vol 4
Language: engleski
Place: Mamaia, Romania
Year: 1995
Pages: from 1115 to 1126
Meeting: 10th Danube-European Conference on Soil Mechanics and Foundation Engineering
Summary: Intensive development of nautical tourism on Croatian
Adriatic coast and marinas functional requirements, caused recently
construcion on locaion and wih maerials ou of everydey sandards. On
rubble-mound breakwaer in Opaija Marina in Ičići, a nonsttandard rock core
containing excessive quality of dusty fraction was used, compacted by means
of explosive. The example of Umag Marina will show the foundation of
semi-submerged screen
breakwater, loaded dominantly by horizontal force, placed on undersea
depression filled with marine sediment. For aforementioned examples applied
methods of problem solving and results of some construction behaviour
observations, will be presented.
- Type of paper
: Paper in proceedings
Title: Retaining structure for the open excavation of Esplanade
center
- Authors:
- Škacan, Branko
- Verić, Franjo (74774)
- Szavits-Nossan, Antun
- Editors
- Mavar, Ramon
Proceedings title: Saopćenja 1
Language: hrvatski
Place: Zagreb
Year: 1994
Pages: from 479 to 489
Meeting: Geotehnika prometnih građevina
Held: from 10/05/94 to 10/08/94
Summary: In the center of Zagreb in the immediate visinity of the
railway station an area of 32000 sq.m a garage and shopping center were
constructed. In order ensure the construction
of a completly buried structure with three storeys, an excavation with the
area of 121*87 m, 14,60 m deep under the ground surface was provided. The
retaining structure had to ensure the stability of the foundation pity
adjacent buildings (Hotel Esplanade) and traffic circulation (tramway and
pedestrian subway) and to prevent water inflow in the foundation pit and
thus to provid construction of the structure. The retaining structure
consisted of a continuous reinforced concrete diaphragm wall improved by
the prestressed ground anchors.
- Type of paper
: Paper in proceedings
Title: Remedial Works on a Wharf Section in Port of Ploce
- Authors:
- Čorko, Damir
- Čagalj, Miro
- Lovrenčić, Davorin
- Verić, Franjo (74774)
- Franičević, I.
- Editors
- Mavar, Ramon
Proceedings title: Saopćenja 1
Language: hrvatski
Place: Zagreb
Year: 1994
ISBN/ISSN: 953-6085-04-6
Pages: from 267 to 274
Meeting: Geotehnika prometnih građevina
Held: from 10/05/94 to 10/08/94
Summary: The operative wharf No. 5 in the Port Ploče complex was
built back in 1967, in a total length of 507,70 m. The wharf structure is
founded upon a series of vertical reinforced
concrete piles, 120 cm in diameter and 40 m long.
As from the very beginning of the operation deformations (horizontal
displacement) larger than expected appected, the wharf structure suffered
domage.
On the basis of existing data on measured displacements of the wharf
structure, as well as the reconnaissance of condution of reinforced
concrete piles, numerical analyses were
undertaken in order to define the relationship betveen internal forces in
piles und loadings within the observed section of the wharf. Thus the
relationship betveen the observed damages on piles and possible load
intensities on the depot were established.
Remedial works at the most imperilled section of the wharf structure are
foreseen.
Two basic approaches were analyzed: eitehr to remedy the existing damaged
piles, or to remedy the wharf by placing additional piles. The latter
solution was adopted as more advantageous, so that the final design had
been prepared along these lines.
- Type of paper
: Paper in proceedings
Title: Main Features od Design Analysis of Prestressed
Geotechnical Anchors
- Authors:
- Muhovec, Ivan (151325)
- Editors
- Mavar, Ramon
Proceedings title: Priopćenja 1
Language: hrvatski
Place: Zagreb
Year: 1995
Pages: from 51 to 58
Meeting: Geotehnički problemi u urbanim sredinama
Held: from 10/04/95 to 10/06/95
Summary: The application of geotechnical anchores has become more
recognized lately and there are much more designers who try to improve
their design solutions with the use of geotechnical anchorages.
Prestressed geotechnical anchores are specially efficient in those cases
when the displacements of the particular geotechnical system should be
maintly elimineted. Buildings with underground storeys which should be
interpolated within urban zones can sometimes fit well into restricted
spaces of the neighbouring existing buildines, just with the use of
prestressed geotechnical anchorages.
In order to define allthe important elements upon which depend the quality
of anchorage functioning it is necessary to carry out a proper geostatical
analysis, which primarily has to solve the question of the relationship
between prestressing and selfstressing as like the question of free anchor
length and anchrage length. In this paper some of the practical experiences
from this field are shortly presented.
- Type of paper
: Paper in proceedings
Title:
- Authors:
- Ivandić, Krešo
Proceedings title: Prooceedings
Language: engleski
Year: 1994
Pages: from 51 to 54
Meeting: 8th European Young Geotechnical Engineering Conference
Held: from 09/05/94 to 09/09/94
Summary: In the project the relationship of pile deformation and its
potential energy at horizontal load by ship impact was investigated. The
main scope was to determine the distribution of potential energy to the bar
and the soil. The mentioned energies balance the kinetic energy of a ship
during impact with on-
shore structure. The pile model was a vertical bar in the Winkler's space
subjected to horizontal impact and a bar in the elastic half-space
(Mindlin's model).
