In this study, a self-developed adaptive finite element limit analysis (AFELA) code was adopted to explore the stability of dual tunnels in cohesive–frictional soil subjected surcharge loading and seismic action. Parametric studies different influential factors, including depth tunnels, horizontal distance between acceleration coefficient, unit weight, cohesion internal friction angle soils, we...

We study some generalized notions of cohesiveness which arise naturally in connection with effective versions of Ram-sey's Theorem. An infinite set A of natural numbers is n–cohesive (respectively, n–r–cohesive) if A is almost homogeneous for every computably enumerable (respectively, computable) 2–coloring of the n–element sets of natural numbers. (Thus the 1–cohesive and 1–r–cohesive sets coi...

synthetic water soluble acrylamide-based polymers have wide range of ap-plications  in  the  feld  of  soil  establishment  and  non-desertifcation.  in  this research, the acrylamide-based anionic polyelectrolytes were prepared by  solution polymerization. the polymerization was carried out using aibn as a radical initiator and at different degrees of anionic charges ranging between 10% and 30...

Abstract The authors of the article, on basis laboratory experiments, describe kinematic structure erosion rates water flow in conditions non-cohesive soil lying peceidal canals. A methodology for conducting experiments and analysis results tov research. Dependencies are proposed determining non-eroding taking into account occurrence slopes trapezoidal canal.