... Abstract This paper analyzes the impact of joint contact conditions on the tunnel stability parameters of the rock tunnel. A computational model was developed for scenarios where the contact surface is inclined at various angles of rock mass surrounding excavation. The model incorporates...

... of the combination of high accuracy, efficiency, flexibility, and interpretability makes XGBOOST a valuable tool in various machine learning and data science applications. This study focuses on the development of an XGBOOST model for predicting both the average dimension of fragmentation and the volume of excavation...

... Abstract In the design and construction of underground engineering (tunnels, caverns, shafts, hydro-electric stations...), investigation the mechanical behavior of underground excavations, that include the influence of the rock mass characteristics on the Excavation Damaged Zone (EDZ...

... considered during the design and construction of the facility: vertical shaft excavation, pre-grouting to control groundwater, and application of a new blasting pattern. 1. Introduction Y-2 Project, a project for the construction of an underground LPG storage facility, was carried out for 3.5 years from...

... develops rapidly when the core soil (part 7, 8, and 9) are excavated. Totally, displacements caused by the excavation of core soil takes 55 percent of the final displacement, thus the soil core is the key to control the tunnel deformation. The maximum principle stress concentrates at the arch foot at both...

... mechanics excavation Upstream Oil & Gas stability analysis construction consumption isrm specialized conference vietrock2015 storage cavern storage facility permeability dimension Lee Oil Storage Cavern march 2015 Vietrock2015 an ISRM specialized conference Vietrock2015 12-13 March 2015...

... Abstract The Vietnam Coal and Minerals industrial group has currently invested in the development excavation of coal mine underground construction. Many modern equipment of world famous brands such as: Sandvik, Atlas Copco, Bolt tech... was put into execution. Manual labor of the workers have...

... is capable of producing tunnels and caverns to the satisfaction of the clients. This paper discusses the challenges of designing and building large underground caverns needed for a further developing of the underground infrastructure. Underground caverns excavated into the rock mass require a strict control...