In major construction projects involving extensive excavation and tunneling, it is crucial to have accurate realtime monitoring to ensure that support structures are not excessively stressed as these could lead to collapse and fatalities. The integration of machine-to-machine (M2M) technologies has been proposed to improve the process of transferring data from the sensors in the monitoring site...

Lunar and planetary subsurface exploration is of considerable significance. The authors have studied the strategies for subsurface excavation and propulsion for the development of a lunar subsurface explorer. The authors have proposed an autonomous robotic explorer which can burrow into the soils. Based on the strategies the authors have already considered, this paper especially focuses on the ...

In studying the dynamics of ant nest excavation, the nest volume has to be continuously monitored. In many laboratory studies, the excavated substrate, such as sand, was collected, and the volume of excavation was calculated by converting the weight of the collected sand into the volume. The excavated sand can be manually collected and weighed; however, manual collection is tedious, particularl...

Excavation and earthmoving equipment mostly operate in accident-prone areas. These areas normally have rollover, confinement, and fall or may be considered harmful work areas due to demolitions and sewage removals. It is inevitable that excavation and earthmoving systems should be developed to secure the safety of operators through unmanned and remote control systems. Therefore, this research p...

Any archaeological site shows a stratification formed by single 3D volumes, the deposits and specific 3D surfaces of human origin as pits, ditches or wall-surfaces known as the units of stratification. Excavation forms the main data retrieval process in field archaeology a destructive process to be documented in three dimensions. To fully reconstruct the part of the site destroyed by excavation...

Research on data quality through the analysis of accuracy and uncertainty has become a major development in GIS science. Fisher’s taxonomy provides solutions for the processing of uncertainty in spatial data representation. However, excavation data differs from geographical data, owing to the specific features of archeology such as incompleteness, temporal and functional aspects. Therefore, arc...

Intact rock properties together with rock mass characteristics should be well investigated for selection of proper tunnel boring machine (TBM) for tunneling in various ground conditions. This is due to the significant impact of rock mass characteristics on machine performance. TBMs are site specific and designed for optimal performance in given ground conditions. When selected and put to work a...

Tunnel construction method using a tunnel boring machine (TBM) is commonly adopted for building underground infrastructure, such as railways, roads, sewers, or utility pipelines. TBM tunnelling entails precise guidance of the machine in the underground space, as well as effective construction management and project control. The research aims to address critical engineering and management proble...

Dimensionless coefficient () in convergence confinement method shows the relaxation of stress in the wall of the tunnel at different excavation movements. This factor is considered a constant number in previous studies and tunnel geometric characteristics (such as depth, cross-section shape, radius, soil material, etc.) are not included in its determination; however, ignoring these effects can...