This paper focuses on the face stability analysis of Double-O-Tube shield tunnel. This kind of analysis is significant to ensure the safety of workers and reduce the influence on the surrounding environment. The key point of the stability analysis is to determine the supporting pressure applied to the face by the shield. A collapse failure will occur when the supporting pressure is not sufficie...

Background: To optimize the layout position of residual coal pillar return roadway when mining a close seam group and to clarify optimization mechanism, analysis was conducted on Tashan mine. Methods: Surface displacement monitoring using field tests, main stress magnitude, plastic zone morphology, deformation variables, connectivity between were analyzed at different locations with help FLAC3D...

The discharge of groundwater and the load on lining structure are both significantly impacted by obstruction tunnel drainage system. In this study, fluid–structure interaction model was established based finite difference software FLAC3D. Then, research explored effects symmetric asymmetric blockage in circular drainpipe, transverse drainpipe at pipe joint pore water pressure, displacement stre...

Based on a typical project in an altered rock area, this study carried out numerical simulations using the FLAC3D software to calculate changes stress field, deformation and plastic zone of surrounding during unsupported supported excavation water transfer tunnel. The degree alteration was considered as base point. following results were obtained: state, tunnel affected by different degrees alt...

In order to get the law of rainwater infiltration and progressive water damage, slope Tianshang bridge foundation in Yunnan Province China is taken as engineering basis. The site investigation damaged carried out. traditional Green-Ampt model improved by considering ponding effect dynamic flow on surface. Based variation characteristics wetting front obtained model, failure process with continu...

To investigate and analyze the influence of different stress environments on deformation destabilization rocks surrounding laminated roadways under high stress, this study conducted numerical simulations coal–rock combination circumferential pressures highly stressed lateral pressure coefficients. In addition, a new custom constitutive structure model was constructed based Mohr–Coulomb criterio...

As the hydropower development strategies of China continue to be implemented, a host large projects have been completed or are being constructed in southwest China. During construction Jinchuan station, this study examined stability surrounding rock during excavation and unloading hydraulic tunnels under demanding geological conditions. Microseismic (MS) monitoring technology was employed monit...

The technogenic impact of mining on the environment is analyzed and transition to geotechnology with stowing reduce operations proposed. results research work devoted justification parameters development salt deposits definition influence dynamics deformation underworked rock massif are presented. relevance aimed at creating a safe efficient technology for from systems natural maintenance stopi...

Estimation of sediment transport load due to erosion in river basins is one of the issues which is indispensable for many projects related to water resources, soil and damps construction. With regards to the phenomenon of erosion and transmission Sedimentation in rivers has always led to deformation in the seaboard and sedimentation, so the management and planning in bank of rivers is important...