Characterisation and engineering properties of tectonically undisturbed but lithologically varied sedimentary rock masses

Hoek, E.; Μαρίνος, Π.; Marinos, V.

doi:10.1016/j.ijrmms.2004.09.015

Cited by 145 publications

(65 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Antola Flysch, generally characterized by heterogeneous rock masses (Hoek, Marinos, & Marinos, 2005). A crucial condition seems to be the contrast between brittle and rigid rocks overlying ductile rocks (Poisel & Eppensteiner, 1988) such as conglomerates on flysch, or marly limestone on argillite or on shaly flyschs (hard on soft rocks).…”

Section: Dsgsdsmentioning

confidence: 99%

Large-scale landslide and deep-seated gravitational slope deformation of the Upper Scrivia Valley (Northern Apennine, Italy)

Sacchini¹,

Faccini

Ferraris

et al. 2015

Journal of Maps

View full text Add to dashboard Cite

The Scrivia river is a right tributary of the Po river, the main Italian water course, which flows eastwards into the Adriatic Sea. The head of the Scrivia valley is located in the Northern Apennines, a very short distance from the Ligurian Sea. Its catchment is characterized by landslide areas greater than both the regional and national average. In this work, the causes of this high landslide density have been investigated and a large-scale map of landslide phenomena is produced. Based on geomorphological constraints, several previously unknown deep-seated gravitational slope deformations (DSGSDs) were also identified. DSGSDs have been distinguished in sackungen and lateral spreads. Their characteristics were analyzed in a geographical information system (GIS) environment and compared with landslide distribution. Field surveys, aerial photo-interpretation and GIS analyses led to the production of a large-scale landslide and DSGSD overview map at 1:35,000. The massive presence of DSGSDs and their connection to landslide distribution and activity raise important implications for both geological mapping and land planning.

show abstract

Section: Dsgsdsmentioning

confidence: 99%

Large-scale landslide and deep-seated gravitational slope deformation of the Upper Scrivia Valley (Northern Apennine, Italy)

Sacchini¹,

Faccini

Ferraris

et al. 2015

Journal of Maps

View full text Add to dashboard Cite

show abstract

“…GSI charts have been prepared on this basis by several researchers (a.o. Hoek, 1994;Sönmez & Ulusay, 1999;2002;Marinos & Hoek, 2001;Hoek et al, 2005). The chart suggested by Marinos & Hoek (2001) was used in the bearing-capacity analyses in order to estimate the GSI values for the various geological units.…”

Section: Methodsmentioning

confidence: 99%

Engineering-geological and geotechnical investigations for risk assessment of the University Olympic Village in Izmir (Turkey)

Kıncal¹,

Koca²,

Yılmaz³

et al. 2010

Geologos

View full text Add to dashboard Cite

The Metropolitan Municipality of Izmir (Turkey) designated a steeply inclined area for the construction of buildings to house the participants of the Izmir University Olympic Games. Before the construction activities could start, engineering geological and geotechnical investigations had to be carried out in order to establish which zones in the area were suitable for safe constructions. Seismic studies, borings and laboratory tests yielded the data, which were used for preparing five hazard maps in a GIS environment. The construction activities based on the results of this complex investigation appeared successful. The engineering geological investigations included geotechnical measurements on core samples obtained from the boreholes (core drilling) and laboratory testing. The rock-quality designation (RQD%) values of the rock units were determined and used in the rock-mass classification (rock-mass rating method) as an input parameter and in the calculation of the bearing capacity of the various rock units. Geophysical surveys were carried out to determine the seismic velocity of the rocks at the site. A short overview is provided of the main problems that had to be dealt with, and of the successive steps taken to solve the engineering-geological problems. Determination of these problems is necessary for adequate land-use planning and construction activities.

show abstract

“…The in situ GSI value of this breccia was estimated (not measured) close to 75 by a back analysis of the behaviour of underground openings and taking into account the laboratory results of the specimens tested. Marinos et al (2005) presented a quantitative description of ophiolitic complex rock masses, using the GSI, and described the effects of serpentinisation and shearing on the mechanical behaviour of these rock masses in underground excavations. They considered low to very low GSI values (10 to 20) for ophiolite melanges and since it is very difficult to obtain σ ci from laboratory tests, they derived values of σ ci and m i from a back analysis of the behaviour of tunnels excavated in these rock masses.…”

Section: Bimrock Strengthmentioning

confidence: 99%

“…For the benefit of the design of a large number of engineering projects in Greece in these rock masses, Marinos and Hoek (2001), Hoek et al (2005) and Marinos (2010) suggested modified charts for estimating the GSI for these heterogeneous and composite rock masses, based on the lithology, structure and surface conditions (for bedding planes in particular). They excluded from this procedure rock masses with predominant weak planar discontinuities which are probable to cause structurally controlled failures.…”

Section: Heterogeneous Composite Rock Massesmentioning

confidence: 99%

Engineering Geological Behaviour of Heterogeneous and Chaotic Rock Masses

Tsiambaos

2017

geosociety

View full text Add to dashboard Cite

The engineering characterization of heterogeneous and complex geological formations for estimating their rock mass strength and deformability characteristics constitutes a challenge to geo-scientists and engineers dealing with the design and construction of slopes and tunnels. Mélanges and similar heterogeneous mixtures of hard blocks in weaker matrix, known as "bimrocks", present an overall strength significantly greater than the matrix strength, because the presence of rock blocks, above a threshold volumetric proportion, influences the mechanical characteristics and the behaviour of these rock masses. Moreover, recent studies have shown that the strength and mechanical behaviour of heterogeneous and composite rock masses such as flysch and molasses consisting of alternating layers of competent and incompetent rocks are governed by the presence and volumetric percentage of the interlayers of the weaker rocks.

show abstract

Characterisation and engineering properties of tectonically undisturbed but lithologically varied sedimentary rock masses

Cited by 145 publications

References 4 publications

Large-scale landslide and deep-seated gravitational slope deformation of the Upper Scrivia Valley (Northern Apennine, Italy)

Large-scale landslide and deep-seated gravitational slope deformation of the Upper Scrivia Valley (Northern Apennine, Italy)

Engineering-geological and geotechnical investigations for risk assessment of the University Olympic Village in Izmir (Turkey)

Engineering Geological Behaviour of Heterogeneous and Chaotic Rock Masses

Contact Info

Product

Resources

About