Mining subsidence associated with longwall extractions beneath significant natural features such as rivers and streams in the Southern Coalfield of New South Wales has posed risks to the natural environment. In this paper, a case study is presented showing the methodology in two-dimensional UDEC (Itasca 2006) modeling for mining induced subsidence around river valley, taking advantage of the di...

A validation study of the distinct lattice spring model (DLSM) for wave propagation problems is performed. DLSM is a microstructure-based numerical model, which is meshless and has advantages in modelling dynamic problems where stress wave propagation is important. To verify the applicability of DLSM to modelling wave propagation through a discontinuous medium, the virtual wave source (VWS) met...

Recently, smart cities, healthcare system, and vehicles have raised challenges on the capability connectivity of state-of-the-art Internet-of-Things (IoT) devices, especially for devices in hotspots area. Multiaccess edge computing (MEC) can enhance ability emerging resource-intensive IoT applications has attracted much attention. However, due to time-varying network environments, as well heter...

This study aims to evaluate the feasibility and effectiveness of a modified adaptive genetic algorithm (AGA) with Universal Distinct Element Code (UDEC) simulation in analyzing fracture surface feature points an anticline rocky slope. Using coordinate data from 30 points, traditional GA AGA methods were compared, mean value normalized Mahalanobis distance indicating reliability results. The fou...

The various situations representing coastal cliffs of Haute Normandy are tested on numerical models. The parameters taken into account are: the lithology of chalks and the presence or absence of fractures. It is a question of specifying the mechanical characteristics of chalk and the inside of the fractures. The chalk cliff of 80m height, with a vertical cliff face, is modeled in distinct eleme...