Landslides constitute a critical component of hazard in mountainous regions. With the help of related research results of modern artificial intelligence, the nonlinear dynamic model based on support vector machine is proposed. In order to reflect the displacement evolution rule of rock mass and judge its stability, the nonlinear dynamic model is combined with the nonlinear catastrophe theory. L...

Due to the insufficiency of damage model, on the basis of studying deeply deformation and damage mechanism of the rock mass, considering the process and phenomenon of the damage of rock mass, damage part can be divided into two parts: the damage material and micro defects due to the change of damage material, then this paper puts forward a new definition of damage. Besides it proposes an impact...

Joints often have important effects on seepage and elastic properties of jointed rock mass and therefore on the rock slope stability. In the present paper, a model for discrete jointed network is established using contact-freemeasurement technique and geometrical statistic method. A coupled mathematical model for characterizing anisotropic permeability tensor and stress tensor was presented and...

Original scientific paper To analyse the influence of joint angle, number and spacing on the strength and acoustic emission (AE) characteristics of rock mass, the uniaxial compression model of rock specimens was established using the micro particle flow PFC2D software platform. The intact rock parameters were determined via trial and error, joints with different angles, numbers and spacing were...

one of the most important parameters used for determining the performance of tunnel boring machines (tbms) is their penetration rate. the parameters affecting the penetration rate can be divided in two categories. the first category is the controllable parameters such as the tbm technical characteristics, and type and geometry of the tunnel, and the second one is the uncontrollable parameters s...

Rock strata in a coal mining environment are essentially bedded in nature and hence exhibit specific load-deformation characteristics. Mining may induce shearing as well as separation along the bedding planes which may result in bending and subsequent fracturing of the rock layer. This on the other hand may substantially change the in situ fluid flow properties of the rock mass, such as permeab...

The Geological Strength Index (GSI) system, proposed in 1995, is now widely used for the estimation of the rock mass strength and the rock mass deformation parameters. The GSI system concentrates on the description of two factors, rock structure and block surface conditions. The guidelines given by the GSI system are for the estimation of the peak strength parameters of jointed rock masses. The...

1 A Case Study on Data Quality, Privacy, and Evaluating the Outcome of Entity Resolution Processes Pei Wang, University of Arkansas at Little Rock, Little Rock, AR, USA Daniel Pullen, University of Arkansas at Little Rock, Little Rock, AR, USA Fan Liu, University of Arkansas at Little Rock, Little Rock, AR, USA William C. Decker, University of Arkansas at Little Rock, Little Rock, AR, USA Ningn...

Since rock fracture is a key property for different rock engineering applications, rock fracture measurement is often carried out in classifying the rock mass. Most geo-mechanics models (e.g. finite element) are of the equivalent continuum type in which fractures are represented not individually, but by their influence on a large element of the rock mass. Elastic modulus, for example, is obtain...