Highway Excavated Roadbed Side Slope Stability Analysis And Study Of Dynamic Design In Mountainous Area

Since the reform and opening up， China’s highway construction from scratch，from less to more， due to the early construction concept and construction methodsare backward， causing many highway slope reinforcement plan is unreasonable orinadequate reinforcement strength， slope protection anddrainage measures are notin place to lead to the operators various diseases， and increase the costs ofconservation and governance. Various diseases， especially mountain highwayexcavation slope instability is the most common and most serious.Theory and practice on the basis of both the mountain highway cut slopereinforcement， protection， typical engineering examples were calculated using theBishop method and finite element strength reduction， explore the the effectiveprevention mountain highway cut slope lossstable landslide of the program， in orderto provide reference for the future of mountain highway construction. The maincontent and conclusions:1、The background of the issues raised related fields of the status quo. Thedevelopment status of research domestic highway， highway mileage hasmaintained a momentum of rapid growth， constantly sum up experience andlessons learned in the development process should provide meaningful guidance forthe future healthy development and construction of the highway and reference.2、Mountain highway cut slope common disease，to analyze the reasons for thedevelopment of its produce， provide a sound basis for the further measures takenfor reasons.3、According to the previous highway construction and operating experience，summarized the various embankment slope of mountain highway cut slope designprinciples，as well as common protection in the form and set requirements，and into the details of the various types of protection in the form of engineeringcharacteristics， asreasonable selection of protection in the form with the high slopereinforcement program to provide the basis for the formation of an effectivereinforcement system.4、This paper mainly discusses engineering typical example of where the regionand construction projects， the route toward and along the by the geographicalgeology， hydrology， climate， topography， road building materials， naturallandscape is described， and the introduction of the systemthe subgrade designconcept of the project， the protection settings ideas and set of principles.5、Bishop method of limit equilibrium method and FEM strength subtraction ofdual-Yong Expressway Fujian and Guangdong border toll station high slope stabilitycalculation， and the results were compared， and then make a slopestabilityanalysis evaluation put forward a reasonable and effective reinforcement.6、The first time for the high slope governance results， according to the stateafter the change， re-analysis and calculation， based on the results of programadjustments to achieve the dynamic design of high slope instability landslide control.