This study evaluates the geomechanically efficacy and stability control of toppling-prone hazardous rock slopes subjected to multi-field coupled configurations, utilizing prestressed carbon fiber reinforced polymer (CFRP) anchor cables. A three-dimensional finite-element geomechanically model capturing sandstone heterogeneity and macro-discontinuity characteristics was established using the Midas GTS NX platform, with the transient structural responses comprehensively analyzed across natural, torrential precipitation, and dynamic seismic scenarios. The empirical-numerical metrics demonstrate that under natural configurations, the prestressed CFRP anchor cables significantly reconstruct the internal strain field, elevating the slope safety factor from 1.165 to 1.432 and reducing the rock mass displacement from 2.907 to 1.452 mm. All past assertive mechanisms such as “restricting hydraulic infiltration” have been thoroughly expunged. The revised text frame refocuses the mechanism around the “maintenance of effective stress gradients” and explicit boundary conditions appropriate for a single-case investigation.
Conventional cast-in-place foundations can require substantial on-site work, motivating transportable precast alternatives for substation equipment. This study proposes a prestressed precast concrete isolated foundation (PPCIF), comprising a pedestal and stepped footing assembled with post-tensioned threaded bars. Comp...
Gang Wang, Fei Fan, Wei-Xiao Shi et al.· Applied Sciences· 0 citations
Surrounding rock deformation and loosening zone thickness are critical parameters for tunnel support design and stability evaluation. This study examined the variable-cross-section Qingshan Tunnel on the Ren-Zun Expressway. Systematic field monitoring measured surrounding rock pressure, displacement, and loosening zone...
Nai-Tao Zheng, You-Yun Li, Zhi-Feng Wang et al.· Frontiers in Earth Science· 0 citations
The rapid expansion of pumped storage power stations in China highlights a critical engineering challenge: ensuring the stability of large-span underground caverns excavated in intensely fractured, mosaic-fragmented rock masses under low in-situ stress. Taking the Liyang Pumped Storage Power Station as a case study, th...
This study assesses and compares the performance of single-helix and double-helix anchors in reinforcing geofoam embankments against uplift loads in sapric peat. Uplift instability is an important geotechnical concern for lightweight embankments constructed in peatland areas, particularly under groundwater fluctuations...
Reki Arbianto, Y. M. Purwana, B. Setiawan et al.· Civil Engineering Journal· 0 citations
To achieve the optimal balance between structural safety and stripping economy for the rock slopes of a specific open-pit iron mine, a rigorous mathematical modeling and computational framework was established. In contrast to traditional simplified pseudo-static evaluations, authentic monitored seismic and blasting wav...
Dao-Yuan Sun, Ruo-Song Bu, Guo-Hui Zhang et al.· Mathematics· 0 citations
Reliable characterization of rock-mass deformability is essential for rock-supported infrastructure. This study combined six in situ rigid bearing plate tests with two-dimensional discrete element method (DEM) simulations implemented in Particle Flow Code (PFC2D) to investigate basalt deformation and energy evolution a...
