Abstract Numerical simulation is a useful tool in investigating the loading performance of rock bolts. The cable structural elements (cableSELs) FLAC3D are commonly adopted to simulate bolts solve geotechnical issues. In this study, bonding interface between bolt and grout material was simulated with two-stage shearing coupling model. Furthermore, FISH language used incorporate shear model into...

To investigate the effect of deep foundation pit excavation on stability retaining structure, a subway station in city Jinan was selected as project, and FLAC3D-based three dimensional model developed for numerical simulation. The horizontal displacement axial force support, vertical column were studied compared to collected data from field. findings indicate that when is excavated, maximum def...

As a new type of reinforced material, geocells are widely used in flexible retaining wall projects, and lot practical experience shows that the geocell has great effect on earthquake resistance, but theoretical research lags behind engineering practice, deformation failure mechanism under need to be further studied. In this paper, we use FLAC3D nonlinear, finite-difference method study geocell-...

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...

To solve the problem of floor water inrush in process coal mining on a confined aquifer and study law instability, cemented filling method is proposed paper. Using river sand cement as materials, cementitious material with concentration 75% content 15% has best flow mechanical properties. Based elastic half-space theory bearing characteristics backfill, model stability established, critical cri...

The stability of the coal-rock composite structure is great significance to safety production deep mines, and different interface connection modes coal rock have an important influence on its stability. Therefore, following work was done in this article: Firstly, mechanical model established, analyzed. Secondly, characteristics (plastic zone, stress, displacement) under were studied by numerica...

Nowadays, there is no precedent for building a high-speed railway in diatomite area. Due to the complex structure and poor mechanical properties of as well lack relevant engineering experience, more attention has been paid proper constitutive model tunnel layer using numerical calculation method, while traditional Elastoplastic most used yet. Therefore, relying on Feifengshan tunnel, through FL...