The Loess Slope And Inhiblt Sturcture Interaction Mechanism Research

As countries the implementation of the western development strategy and unceasinglythorough, the western region loess engineering construction are increasing. In practice, theloess slope is a kind of complex and difficult problem, the current theories research lag inengineering practice, so research on the design theory of loess slope inhibit structure is ofgreat significance. However the interaction mechanism between the loess slope and inhibitstructure is the foundation and basis of the theoretical design, and with final design andengineering cost closely related,so the mechanism research could help perfect the designtheory of loess slope inhibit structure and optimize the design.In order to explore the interaction mechanism between the loess slope and inhibitstructure so as to get better guidance for the slope engineering design practice. Under the sitein-situ experiment, monitoring and indoor experiment data of a loess slope within an underconstruction station in a railway,combining geological, mathematics and mechanics andcomputer technology in the fields of the theory and method, and experiments monitoring andtheoretical analysis, get the following main conclusions (results).(1)Analyze and summarize the existing theories about anti-slide piles contact stressdistributions both on pile before and pile after,combined with the measured results suggesttheories pile in loess strata anchor pile different depths before and after contact with pile inloess soil pressure value distribution;(2)Combining arch effect formation mechanism of anti-slide piles, and analysis of thestress, and application of arch of existing based on soil arch static equilibrium and soil archsoil arch feet, a theoretical formula of the required strength calculation pile spacing,calculated results and practical design piles interval value similar. (3)Monitoring from different types of anchor frame structure to steady work early phasespecific,frame beams, vertical rib and contact between actual bearing of loess, and probesinto the basement of earth pressure distribution; Application structure symmetric simplifiedWinkler elastic foundation beam section of the theoretical calculation frame beams withmeasured section, and bending moment, the two basic compares identical, verify thecorrectness of the theoretical calculation.(4)By monitoring the anchor cable tension segment and loess manual-intensivenightmares between stress value and practical distribution binder, discusses the distributionand variation, and the theoretical solution with displacement Mindlin a comparison, result ismore similar, Mindlin bits that are close to the actual displacement theory, can be used in thedesign and calculation manual-intensive nightmares anchor cable tension.(5)By monitoring the anchor cable segment and dispersed pressure between loess binderstress value and practical distribution, discusses the distribution and variation, and with localdeformation hypothesis solution are compared on the basic ones, and explains the localdeformation hypothesis solution theory, and can be used for a relatively more actual dispersedpressure anchor design calculation.