The Characteristic Analysis Of Landslide Support Measure And Prestressed Anchor Cable Sash Research

Landslide as one important branch of slope calamity is largely involved in the hydraulic electric engineering and railway, highway, mining etc. the instability of slope as the general project question has been always paid attention to by domestic and international scholar. Seeking rational and effective measure of landslide support is particularly important in the project practice, and the measure need deepenning overall research.Prestressed anchor cable sash structure which is used application far widely in recent years especially is a kind of effective structure for high slope support, but the theory of designs and calculates that the theoretical lags behind in project application far widely. Generally calculate the beam-on-foundation internal force with the foundation method of the building at the time of the design, and haven't according to high slope characteristic of prestressed anchor cable sash to design strictly, its irrationality is obvious . It is very essential for it to study the theory, and there are important theory and practical value.This thesis based on the subject of the slope research in chang-jin highway. And itresearchs slope calamity of highway, resists to various kinds of support measure, analyses its calculation theory, function mechanism and suitable terms, etc. carry on the introduction to some existing project computing technologies; this thesis research the computing technology of prestressed anchor cable sash, introduces the methods of dividing frame nodal and analyses the methods of static equilibrium, inversion beam and beams on elastic foundations. For study the distribution situation of internal force of prestressed anchor cable sash , a large number of the earth pressure salver ,steel meter and mcasureing strength meter are embed in the anchor cable frame .This experimental study of prestressed anchor cable sash combines with the chang-jin expressway subject and the interrelation about frame, cableand soil body are researched; This thesis adopt the finite element method to upbuild the whole model, the frame internal force distribution situation are analysed between the prestressing force of cable losed or not. The soil is elastoplastic. at last to load the cable draw force of test survey among calculating model and author compares the calculation stress that under beam with the test survey result and also compare test stress with calculation steel bar stress that transformed from curved, the two are comparatively identical, indicate that it is comparatively successful to test , calculate that it is comparatively rational for the model to deal with.