Technical Study On Treating Slope Instability In Geotechnical Engineering

Nowadays,in the era of economic internationalization,diversification and integration,the construction of highway,building and geotechnical engineering has been greatly increased.However,as the most common geological environment and natural form in human life and activities,the stability of rock slope will seriously affect human natural activities in construction projects.In the practice of construction engineering,especially in geotechnical engineering,the phenomenon of losing stability of slope happens occasionally.Once the instability happens,if the slope happens,it will cause immeasurable loss and bring disastrous consequences to be unthinkable.Therefore,the stability of rock and soil slope and the study of control and protection technology have become a hot topic that the state and relevant departments consider and attach importance to.It is of practical significance for geotechnical engineering to carry out effective analysis,research,modeling and some protective measures for the stability of rock and soil slope.In this paper,we have collected a lot of references from home and abroad,especially in the geotechnical engineering,and analyzed the instability factors of slope in detail.In geotechnical engineering construction,the slope geological prospecting technology by monitoring the slope of the sliding surface by using the limit equilibrium analysis method to study the stability and safety,and to identify the relevant parameters,comprehensive evaluation,analysis of slope stability,the calculation results show that if the slope safety coefficient is less than 1.0,the slope is in an unstable state on this basis.If a certain treatment scheme is adopted,it is shown that the slope is in a stable state when the slope safety coefficient is more than 1.15.Combined with the high slope of the K39+130~K39+190 section of Zhangshi expressway,the three-dimensional finite element simulation of the high slope is carried out with a large software ANSYS before and after the reinforcement of the prestressed anchorage beam.Finally,the safety factor of the slope is calculated by the finite element strength reduction method.The calculation results show that the slope strengthened by the prestressed anchorage girder is stable.