Slope Stability And Reinforcement Evaluation On North Nations Of Haizhou Strip Coal Mine

Slope problems are most commonly found in road engineering, architecture engineering, hydropower engineering and other geotechnical engineering. At present,there are many methods of slope analysis,but the problem remains unsolved. Landslip results huge losses every year and belongs to hazard of moving rock and soil of slope. With the development of computer,numerical analysis method of slope stability is mature. Mechanics analysis is also a kind of important means. the slope stability analysis.Hai-zhou open-pit coal mine in China is one of the earliest construction of open-pit mine, after 50 years, we have stopped mining exploitation and will be built into a national mine-park. There are many industrial and mining enterprises, and the neighborhood on the north nations of Hai-zhou open-pit coal mine. These ask the north nations to keep higher stability.Fuxin Hai-zhou opencast is smooth inclined rock slope for the layered deposition system, with a long length, depth, great features. The deepest slope of 350 meters, nearly 400 meters.The coal mine north state from the beginning to the present building landslide, according to incomplete statistics, more than 60 times. According to geological factors of the natural factors and the landslide is due to the weak layer under the floor fall due.Articles on North Haizhou mine stability analysis and reinforced the state's east-west division of the E18 with an example. On the one hand using the current paper is more popular, the use of a wide range of GEO-SLOPE software mainly used in various branches of limit equilibrium methods, such as the Sarma method, M-P law, the analysis results agree well with the actual; Another aspect of the paper The study used a numerical method ADINA program analysis, on the two-dimensional geological model to create, produce visual effects on slope stability testing.After the calculation of the two methods, comparing their results found that: using the limit equilibrium method and obtained using ADINA program the most dangerous sliding layer is the same, sliding surface is a small difference. ADINA on the slope while a more precise nature of the material, taking into account the material damage to the principle yield criteria and automatically determine the failure surface, and added to the stress redistribution and after the development, rather than people assume that a sliding surface in advance. Therefore, the use of ADINA results more in line with the actual situation.Analysis of slope stability in the post, and read a lot of data and the landslide slope Haizhou mine, based on the actual geological conditions, this paper has the prestressed cable-based, supplemented by pressure foot of the slope The slope treatment support programs in order to meet safety requirements of the slope, and using GEO-SLOPE and ADINA were supporting the stability of the slope after checking. And the results of the two calculation methods were compared with satisfactory results. Therefore, the selection of papers mentioned in the slope support program to meet the requirements.