Artificial cementation is a method commonly used to enhance and improve soil properties. This paper investigates the effect of using different amounts cement on strength parameters bearing capacity, finite element method. Experimental tests are conducted samples with Portland cement. A 2-D numerical model created validated modelling software, COMSOL Multiphysics 5.6 software. The study finds th...

Vortex extrusion (VE) is a severe plastic deformation technique which is based on the synergies between high strain accumulation and high hydrostatic pressure. Such a high amount of pressure, places a mandate to seek the method for investigation of the load under processing conditions. For this, kinematically admissible velocity field and upper bound terms based on Bezier formulation are develo...

To improve the stability of sloping farmland, optimum ratio for parameter composite soils was determined. Plain and mixed were prepared with three improved materials glutinous rice glue, wood fibres coarse sand laboratory to tests experiments. For different moisture soil contents, shear strength, cohesion internal friction angle analysed proportions adjusted based on suitability plant growth. S...

To study the soil-water effect of red clay, a leaching test is conducted by loading clay into soil column and collecting waste liquid periodically for analysis ion content conductivity changes in liquid. After filtering, removed from reconstituted as straight-shear specimen test. Ca2+, Mg2+, SO42− ions increased then stabilized water samples time increased, while Na+, Cl−, NO3− declined stabili...

In the process of underground gasification coal, top rock coal seam will experience a certain high temperature action and be in complex stress environment. Therefore, it is great theoretical engineering significance to study effect cyclic unloading loading on mechanical properties rocks under action. this thesis, stress–strain curves sandstone different high-temperature treatments are obtained ...

designing and optimization of the intake manifold is one of the important steps in the development of the internal combustion engines. in this paper, the flow inside the intake manifold of an internal combustion engine is investigated by numerical modeling. the convective flux models are adopted to simulate the unsteady compressible flow behavior. to solve the governing equations, for calculati...

This study focuses on the crucial role of shear characteristics mortar–rock interface (MRI) in geotechnical engineering. These properties largely determine effectiveness engineering reinforcement measures such as anchoring and grouting. The mechanical deformation MRI with different roughness will be investigated. To achieve this, an indoor direct test was conducted binary medium (MRBM). numeric...

Through theoretical calculation, the stress and deformation of surrounding rock can be analyzed, providing guidance for support design optimization soft roadways. In this paper, solutions both optimal pressure allowable maximum displacement are derived from Drucker–Prager (DP) yield criteria steady creep criterion expressed by third invariant deviator stress. The DP with different parameters is...