TY - JOUR
T1 - Ground subsidence, Quaternary faults and vulnerability of utilities and transportation networks in Thessaly, Greece
AU - Kontogianni, V.
AU - Pytharouli, S.
AU - Stiros, S.
PY - 2007/6/30
Y1 - 2007/6/30
N2 - Ground fissures and subsidence have caused extensive damage in structures and the utility networks (roads, railroad line, Larisa NATO airport, telecommunication network) in the plain of Thessaly, central Greece, in the last 20 years. The fact that these fissures are parallel to Quaternary faults controlling the structural evolution of the Thessaly basin, marked by intense recent seismic activity, led some scientists to regard them as manifestation of tectonic creep, even premonitory phenomena of major future seismic events. A careful study of the geometric characteristics and of the kinematics of these ground fissures, however, revealed that they only reflect shear failure of the ground due to compaction of loose sediments following significant decline of the groundwater level due to over-pumping; i.e. a geotechnical and not a tectonic process. Furthermore, theoretical considerations and modeling predict surface fissuring along zones of anomalous basement, normal-fault controlled topography. This explains the correlation between ground fissures and active Quaternary normal faults.
AB - Ground fissures and subsidence have caused extensive damage in structures and the utility networks (roads, railroad line, Larisa NATO airport, telecommunication network) in the plain of Thessaly, central Greece, in the last 20 years. The fact that these fissures are parallel to Quaternary faults controlling the structural evolution of the Thessaly basin, marked by intense recent seismic activity, led some scientists to regard them as manifestation of tectonic creep, even premonitory phenomena of major future seismic events. A careful study of the geometric characteristics and of the kinematics of these ground fissures, however, revealed that they only reflect shear failure of the ground due to compaction of loose sediments following significant decline of the groundwater level due to over-pumping; i.e. a geotechnical and not a tectonic process. Furthermore, theoretical considerations and modeling predict surface fissuring along zones of anomalous basement, normal-fault controlled topography. This explains the correlation between ground fissures and active Quaternary normal faults.
KW - consolidation
KW - Greece
KW - ground fissures
KW - groundwater withdrawal
KW - land subsidence
KW - Thessaly
KW - utility networks
UR - http://www.scopus.com/inward/record.url?scp=34248587341&partnerID=8YFLogxK
UR - https://link.springer.com/journal/254
U2 - 10.1007/s00254-006-0548-y
DO - 10.1007/s00254-006-0548-y
M3 - Article
AN - SCOPUS:34248587341
VL - 52
SP - 1085
EP - 1095
JO - Environmental Geology
JF - Environmental Geology
SN - 0943-0105
IS - 6
ER -