Sturzstroms are a rare category of rock avalanche that travel vast horizontal distances with only a comparatively small vertical drop in height. Their extraordinary mobility appears to be a consequence of sustained fluid-like behavior during motion, which persists even for driving stresses well below those normally associated with granular flows. One mechanism that may explain this temporary in...

Combining classifiers has proved to be an effective solution to several classification problems in pattern recognition. In this paper we use classifier combination methods for the classification of natural images. In the image classification, it is often beneficial to consider each feature type separately, and combine the classification results in the final classifier. We present a classifier c...

information avalanche (overload or expansion) in various scientific fields is a novel issue turned out by a number of factors considered necessary to facilitate their record and registration. though, the biological science and its diverse fields like proteomics are not immune of this event and even may be as the event’s herald. on the other hand, time as the most valued anxiety of human has enc...

The rocks are formed through very complex processes and the complex behaviour of rock masses is dominated by the planes of weaknesses . Rock mass consists of intact rock and discontinuities. Many rocks show strain softening behaviour under loads. In this paper, the constitutive models for intact rocks and rock joints are presented. These form the basis for the development of constitutive models...

Abstract Deformation modulus of rock mass (Em) is an important parameter for the analysis and design mining engineering projects. However, field tests measuring deformation are difficult, time-consuming, capital intensive. This has led to development numerous empirical models estimating modulus, which in different forms scattered literature. The available literature use types inputs. Therefore,...

This paper presents an empirical design of the excavation method and support system tunnel 1 Sigli-Aceh toll road, Indonesia, based on rock mass quality Rock Mass Rating (RMR) Japan Society Civil Engineers (JSCE). The results showed that route consisted fair to good calcarenite interlayered by sandstone D II C categories RMR JSCE. Based RMR, recommended for section having is full-face, top head...

This research has examined the rock mass quality case study in Tiga Dihaji Dam’s diversion tunnel. Observations of geological conditions were carried out on surface and subsurface site show that area consists tuffaceous sandstone carbonate interbeds. The method this is based classification Geological Strength Index (GSI), Rock Mass Rating (RMR), Q-system. results indicate a GSI value 15 - 87.5 ...

The initiation, propagation, coalescence and failure mode of brittle jointed rock mass influenced by fissure water pressure have always been studied as a hot issue in the society of rock mechanics and engineering. In order to analyze the damage evolution process of jointed rock mass under fracture water pressure, a novel numerical model on the basis of secondary development in fast Lagrangian a...