The mechanism of over-coal thin-layered massif deformation of weak rocks in a longwall

2012 ◽  
pp. 51-54 ◽  
Keyword(s):  
Weak Rocks

Experimental studies of the extraction mine workings in a very weak rocks

2019 ◽  
pp. 218-228
Author(s):  
I.A. Kovalevska ◽  
◽  
O.S. Husiev ◽  
V.H. Snihur ◽  
O.K. Malova ◽  
...  
Keyword(s):  
Experimental Studies ◽  
Weak Rocks ◽  
Mine Workings

Point load testing of weak rocks with particular reference to chalk

1998 ◽  
Vol 31 (2) ◽  
pp. 95-103 ◽  
Author(s):  
A. J. Bowden ◽  
J. Lamont-Black ◽  
S. Ullyott
Keyword(s):  
Point Load ◽  
Load Testing ◽  
Weak Rocks

The measurement of the in-situ stress state by acoustic emission method (AEM) in weak rocks

Rock Stress ◽  
2020 ◽  
pp. 389-394
Author(s):  
H. Watanabe ◽  
H. Tano ◽  
Ö. Aydan ◽  
R. Ulusay ◽  
E. Tuncay ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Stress State ◽  
In Situ Stress ◽  
Acoustic Emission Method ◽  
Emission Method ◽  
Weak Rocks

Effect of sediment concentration on the erosion of weak rocks evaluated by mini jet tests

2014 ◽  
pp. 489-493
Author(s):  
M Huang ◽  
M Cheng ◽  
B Lin ◽  
J Liao ◽  
Y Pan
Keyword(s):  
Sediment Concentration ◽  
Weak Rocks

scholarly journals Morphostructural, Meteorological and Seismic Factors Controlling Landslides in Weak Rocks: The Case Studies of Castelnuovo and Ponzano (North East Abruzzo, Central Italy)

Geosciences ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 122 ◽  
Author(s):  
Monia Calista ◽  
Enrico Miccadei ◽  
Tommaso Piacentini ◽  
Nicola Sciarra
Keyword(s):  
Central Italy ◽  
Alluvial Fan ◽  
Precipitation Event ◽  
Integrated Analysis ◽  
Deformation Pattern ◽  
Weak Rocks ◽  
Geomorphological Mapping ◽  
North East ◽  
Triggering Factors ◽  
The Stability

We investigated the role of the morphostructural setting and seismic and meteorological factors in the development of landslides in the piedmont of the Abruzzo Apennines. In February 2017, following a heavy snow precipitation event and a moderate seismic sequence (at the end of the Central Italy 2016–2017 seismic crisis), several landslides affected the NE-Abruzzo chain and piedmont area. This work is focused on the Ponzano landslide (Civitella del Tronto, Teramo) and the Castelnuovo landslide (Campli, Teramo) in the NE Abruzzo hilly piedmont. These landslides consist of: (1) a large translational slide-complex landslide, affecting the Miocene–Pliocene sandstone clay bedrock sequence of the piedmont hilly sector; and (2) a complex (topple/fall-slide) landslide, which occurred along a high and steep scarp on conglomerate rocks pertaining to terraced alluvial fan deposits of the Pleistocene superficial deposits. Both of the landslides are typical of the Abruzzo hilly piedmont and both of them largely affected houses and villages located on top of the scarp or within the slope. The landslides were studied by means of field geological and geomorphological mapping, borehole investigations, geostructural analysis and photogeological analysis. For the Ponzano landslide, a detail pre-post-landslide air photo interpretation allowed for defining the deformation pattern occurred on the slope. For the Castelnuovo landslide, the triggering factors and the stability of the slope were evaluated with FLAC3D numerical modelling, in pre- and post-landslide conditions. Through this integrated analysis, the triggering factors, the landslide mechanism and the stability conditions of the landslides and the characterization of two main types of landslides affecting the piedmont hilly area of the Abruzzo region were investigated.

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