ANALYSIS OF ENGINEERING GEOLOGICAL SYSTEM FOR THE STABILITY OF HIGH ROCK CUT SLOPES ON SHIKONGSHAN NO.Ⅱ SECTION OF ZHANG-LONG EXPRESSWAY

Stability of high rock cut slope is a complicated systematic project,which relates to the engineering geology,rock mechanics,and computation science,etc.On the basis of carefully studying the geological background and environmental conditions,systematic analysis and evaluation,comprehensive integration method are the best method for effective analysis,research and solution of this problem.For the case of Zhang-Long expressway Shi Kongshan No.Ⅱ section high rock slope,on the basis of the systematic analysis of engineering geologic properties,Stereographic polar projection method,and Finite Element Method(FEM) are used in comprehensive evaluation and systemic analysis,by which the slope stability results are obtained,and then are accepted and adopted by design and construction corporations.The slope has already kept in safe operation for several years after its completion which shows that this comprehensive evaluation and systemic analysis are successful and effective,and can be an important pathway of stability evaluation of high rock slope.Its comprehensive contents and integrated mode and its perfection and engineering practicability need further research,engineering practice and experience accumulation.