| Qingcheng Mountain is a famous scenic spot of China and there are many places of interest in the scenic area. In the surrounding of scenic foothills have many been built or are being built luxury villas, golf courses and other entertainment places of leisure, But The Qingcheng mountain region have abundant rain all the year round, the earthquake activity also very frequently, under the influence of human activities and the negative factor of natural environment, the slope easy to instability, especially after the5.12Wenchuan earthquake, most of the slope near the longmenshan fault produced a wide range of loose, in recent years, under the effect of heavy rain and snow weather, a lot of content source product, slope become instability, landslide, collapse, landslides and other geological disasters take place frequently, and Qingcheng mountain is coincidentally located near of longmenshan fault zone which is one of the areas prone to all kinds of geological disasters in recent years. The Taiyi Qingcheng mountain landscape worker’s apartment building slope engineering belong to Taiyi qingcheng mountain landscape villa is one of city pipe project which was built by the rules of chengdu bureau approvaled in2005, the entire villa have the style of European terraced building, but it’s close to the slope, so, how to deal with the slope will directly affect the villas and hotels, especially the safety of the pedestrian, the previous company development Tour villa, due to the improper disposal of slope, villa safety is affected, The company had to pay a greater cost and time to completely reinforcementBased on the slope geological conditions survey of Tai Yi Qingcheng landscape workers villa apartment building, combined with the feasibility study report, Take Measuring, drilling, geophysical and other means, Thus we have a more comprehensive and accurate understanding with the basic geological features of the Mount Qingcheng ice slope such as the material composition, shape size, depth and distribution.In support of the relevant data, combined with finite element analysis of slope stability, evaluate the slope stability, and propose cost-effective slope support measures. As the conclusions follow:1. Combined with related data of early exploration of Tai Yi Qingcheng mountain landscape villa and exploration results of the slope, Systematic analysis of the geological structure and the basic characteristics of Tai Yi Hotel property management space-cum-slope ice accumulation body.2. According to drilling results, the excavated slope range and each potential slip surface location, selected the appropriate stability calculations in accordance with the natural state, storm state and earthquake state calculated the slope stability. The results are basically the same with the actual situation of the slope.3.Using the finite element software PLAXIS establish a before excavation geological model of the slope, conducted a numerical Simulation analysis, obtained the critical slip surface, gives detailed analysis of displacements and stresses of the slope, calculates the safety coefficient of the slope.4. This paper has analyzed the slope support measures and results of the similar area slope, combined with construction needs,, selected two steps to this slope excavation and support method. The level I high and wide step of vertical slope using anchor piles supporting measures, the level II small scarp using mortar rubble dwarf retaining wall for protection. And select the common storm status, analyzed the stability before and after support of the main level I slope by the PLAXIS numerical simulation, the stable factor can achieve1.503after support to meet the design requirements.5. Both limit equilibrium analysis and numerical simulation can quantitative analysis and calculation the stability of the large ice accumulation body. To support and design according numerical simulation results is more insurance and reliable, but slightly conservative. However, both methods can validate and support each other, and can obtain the conclusion which consistent with the actual situation of the slope, that should be widely applied. |
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