Study On The Evaluation Of The Effectiveness Of Highway Landslide Control

Embankment construction on the natural slope need to make cutting and filling, this action wrecked the balance of the original slope conditions inevitably, and leading to the accident of slope instability, even worse can cause the slope landslide. In mountainous and hilly areas, the cost of governance for the landslide control accounted for very high inverse proportion of the entire construction investment of the highway. Estimating the rationality of these disposal and appraising the content on technology, economy and impact draw much more attention of people. How to make impersonal and scientific evaluation on these big numbers of highway landslide treatment, which cost large investment? This paper combining with the engineering geology landslide theory, structure theory, monitoring technology, numerical simulation, fuzzy mathematics as well as a number of ways are in order to solve these problems. The main work and achievements of this paper contain:Based on the engineering geology theory, studied the basic geological features of landslide, how to determine the strength characteristic of landslide slip and how to determine the landslide thrust are discussed, and through a practice instance, the paper make the evaluation by calculating its landslide thrust and the cognitive degree of character.Analyzing the landslide treatment measures to the type of engineering and its application conditions.Based on the structure theory, make some discuss on the calculation method of prestressed anchored pile used very often in engineering, also combined with practical example to appraise the the rationality of engineering countermeasures and supporting and retaining structure designing.Combination of ChangJi Highway 1 # K169 landslide examples for evaluating the reasonableness of engineering measures and the design of supporting structures.Through the K169 of ChangJi highway landslides monitoring including deformation stress testing of Anti-slide structure and slope deformation monitoring. Using the monitoring data analysis the stress state of retaining structures.And combined with the slope displacement monitoring data to judge the entire slope stability and results of treatment.Through numerical simulation, compare the displacement and deformation state before making landslide treatment and after the state of, also analysis stability before treatment and after. Then analysis with examples to prove that using the numerical simulation to evaluate the effect of treatment is reasonable.Using the fuzzy mathematics views and fuzzy evaluation methods to evaluate the rationality of treatment effect in K169 1# sandslid of Chang Ji Highway.