Slope Stability Analysis And Support Numerical Simulation Based On FLAC3D

The slope is a common geological phenomenon in the economic activities of the human race,in which the instability of the road slope not only affects the safety of driving,buries highway facilities,but also causes the people involved to be threatened by the safety of life,should be given sufficient attention,and put targeted support measures to be treated.FLAC3 D finite differential method is one of the convenient and effective research methods recognized and widely used by many scholars in the research of slope engineering.On the basis of making full use of the measured data,this paper uses the limited differential software FLAC3 D to model and analyze the specific slope and support measures,in order to use the intuitive image and data trend to show the stability and unstable factors of the slope under different working conditions by comparison analysis method,so as to obtain a more targeted and better support ingress for the slope.In view of the analysis of the stability analysis of the slope,the stability of the upper mulch body and the foot of the slope is an important factor affecting the stability of the whole slope under the condition of excavation of the slope without the application of support.Therefore,on the selection of slope support combination,it is the key element to solve the problem of shearing damage between the upper cover body and the lower volt rock body contact surface and the slope foot position rock slide problem.After comparative analysis,the following two support combinations for the study of slope support effect is good,can play a good role in theory for the slope support,effectively ensure the overall stability of the slope,and thus for the surrounding people living in the passage,under construction or other engineering facilities have been built to provide a strong security guarantee:(1)The application of gravity-type retaining wall at the foot of the slope can adjust the overall safety factor of the slope from 3.25 to 4.62,and at the same time solve the trend of rock body sliding out of the position of the lower volt rock body,but it is necessary to apply the protective net support measures to the upper soil body;(2)Applying three-dimensional mesh planting grass to the upper mulch body,applying anchor frame beam on the first-level excavation slope and applying a gravity-type retaining wall at the foot of the slope can adjust the overall safety factor of the slope from 3.25 to 14.78,at this time the trend of sliding out of the excavated slope rock body can also provide a better support effect.In the work of similar slope management,we can also draw on the research ideas of this paper,make use of the advantages of numerical simulation method is more rapid and intuitive,and discuss the corresponding support measures for the specific slope safety problem,and get the relatively ideal support matching by contrasting the effects between different schemes.