The interaction between carbon nanotubes (CNTs) and tannic acid (TA) as well the effects of TA adsorption on dispersibility biocompatibility CNTs were evaluated.

The inverse-distance weighting interpolation is widely used in 3D geological modeling and directly affects the accuracy of models. With development “smart” or “intelligent” geology, classical cannot meet accuracy, reliability, efficiency requirements large-scale models these fields. Although improved can basically it at same time. In response to limitations, adaptive method based on attribute spatial differentiation feature adaptation was proposed. This takes into account attributes improve...

Simulation of a geostratigraphic unit is vital importance for the study geoinformatics, as well geoengineering planning and design. A traditional method depends on guidance expert experience, which subjective limited, thereby making effective evaluation stratum simulation quite impossible. To solve this problem, proposes machine learning series simulation. On basis recurrent neural network, sequence model type thickness successively established. The performance improved in combination with...

Abstract The rheological deformation of soft rock resulting from tunnel excavation can lead to significant construction and safety challenges. In this study, a multiphase numerical model was developed simulate the surrounding after excavation. considers coupled meso/macroscale creep damage processes using discrete element method–finite method (DEM–FEM). particular, accumulation at mesoscale (i.e., initial phase before excavation, loading due disturbance creep-induced leading large...

Three-dimensional geological modelling based on triangulated irregular networks (TINs) often results in deterministic models that do not capture the uncertainty of stratigraphic attributes. This study presents a method for building 3D TIN model incorporates probability analysis and random simulation to account this uncertainty. First, we generated Markov chain sequence stratum combined it with correlation boreholes obtain transition matrix virtual borehole. was then used describe changes...

Pervasive, unavoidable and uncontrollable creep failure generated in soft-rock engineering occasionally happens therefore attracts extensive attention recently. However, due to soft rock’s multi-factor mechanism, it is still difficult simulate the full-stage with Distinct Element Method (DEM). In this study, we proposed an improved simulation method based on classical Burger’s model Parallel Bonded Particle Flow Code (PFC). We apply abovementioned models together process rock. The has...

The fundamental understanding of the consolidation and deformation behaviour soft soil is critical importance in engineering geology. purpose this study to develop a nonlinear model for investigating montmorillonite under different loading conditions effectiveness various drainage plate configurations enhancement. considers change microstructure spatially dependent permeability during process. predictions were also validated by using collected geology field-testing data developing advanced...

Although similarity simulation experiments have been widely used in geotechnical engineering, their application soft rock mechanics is still limited due to the complex water–rock interaction of such rocks. The purpose this study was synthesise red mudstone–like materials by method mineral composition and proportion are completely similar that natural samples, using sodium silicate content, compression time vertical stress investigate mechanical properties physical synthetic were compared...

Abstract Background Ecological protection of slope surfaces by vegetation is one the effective methods to reduce soil erosion. However, surface often has problems poor structure and low water use efficiency, which not conducive plant growth. Super absorbent resin (SAR) as a new type retention agent can effectively improve slopes. The study was designed evaluate effect mechanism SAR on aggregate stability, characteristics mechanical strength analyzing characteristics, moisture microstructure...

The creep of soft rocks induced by seepage-stress coupling is one the critical factors that causes failure rock. However, actual mechanisms rocks, particularly during accelerated stage, have not been fully understood so far. Therefore, purpose present study to develop theoretical models quantitively investigate effects coupled fissure-pore seepage and hydro-mechanical on damage behavior rocks. evolution model in rock was developed, established. developed were also validated performing a...

Abstract The purpose of the present study is to fundamentally investigate micro-meso-macroscale correlation mechanism red-bed soft rocks failure within static water, based on energy analysis. Through a series experimental studies, changes in characteristics were characterised by measuring ion concentrations and pH pore structure crack propagation. Based measurements, theoretical modelling conservation was carried out determine failure. results show that microscale dominant effect determined...

The water level fluctuation zone, as a transition zone between and terrestrial ecosystems, is important in maintaining bank stability regulating the ecological balance of water. ecosystem residing within exhibits pronounced fragility, which has resulted recurrent manifestation soil erosion alongside myriad other issues. existing restoration techniques can solidify protect slopes but fail to effectively solve erosion, affects recovery vegetation. Therefore, this study, vegetation survival...

This study investigates the mechanisms controlling multiphase landslide reactivation at red soil–sandstone interfaces in subtropical climates, focusing on Eastern Pearl River Estuary. A significant September 2022, triggered by intense rainfall and human activities, was analyzed through field investigations, UAV photogrammetry, geotechnical monitoring. Our results demonstrate that evolution is governed interplay of geological, hydrological, anthropogenic factors. Key findings reveal...

Micron-scale crack propagation in red-bed soft rocks under hydraulic action is a common cause of engineering disasters due to damage the hard rock–soft rock–water interface. Previous studies have not provided theoretical analysis length, inclination angle, and angle micron-scale cracks, nor they established appropriate criteria describe process. The mechanism cracks yet fully understood, which makes it challenging prevent these types rocks. To address this issue, we used existing generalized...

The topsoil of a clayey slope is easily washed off by rain due to its loose structure. To protect the surface, in recent years, several types non-traditional soil additives have been used means mixing with soil. In this work, new organic polymer stabilizer, named aqua-dispersing-nano-binder (ADNB), was sprayed on surface stabilize slope. understand interaction between and particles during infiltration process as well stabilization mechanism, tests, water stability tests scanning electron...

Red-bed soft rock easily softens and disintegrates when it comes into contact with water, which is the main factor restricting application of as an engineering filler. Therefore, research on influence seawater softening has great significance for in marine engineering. To examine mechanism under conditions, two kinds experiments, well ion inhibition tests softening, were performed pure water results compared. The variation composition, deformation failure characteristics sea cations process...