The Study On Stability Analysis And Prevention Method Of The High Slope To The North Of The People’s Hospital Of Fengjie County In Three Gorges Reservoir Area In Chongqing City

Three Gorges hydropower project is a remarkable project, the Three Gorges reservoir area relocation projects involving large number of immigrants. Migrant relocation, construction sites often rely on large-scale flat field excavation slope and fill slope form, many of which require the use of high shear and high fill slope method, the Three Gorges reservoir area high mountains Goushen strata broken, likely to cause slope of geological disasters, geological disasters prevention and treatment of artificial slope, related to the relocation of the entire immigrant success, important. Three Gorges reservoir area Fengjie County People’s Hospital, the county focused on immigration project, to ensure that sites, roads and construction of safety, adverse geological phenomenon north of Fengjie County People’s Hospital for treatment of high slope is necessary is necessary. Research that led to the high slope of adverse geological phenomena and possible unstable failure of the main factors, including new tectonic movement, lithology composition, topography, rainfall and human engineering activities (manual excavation activities, especially the formation of a high clinical air-surface) and so on. High stability of the slope current situation is still deteriorating, there are landslides, avalanches and landslides and other geological disasters slope may, therefore prevention and control implementation of the project is not only necessary but urgent. In this study, slope stability calculations to determine the qualitative and quantitative calculations to determine the combination of a comprehensive evaluation. Stability of the limit equilibrium method to calculate the main, the calculation according to different failure modes and select a different load combinations under different conditions to determine the parameters of rock and soil, the use of reason is geotechnical analysis software, through the circular edge of the slice method slope at the construction site excavation and increase the anchor (anchor) lattice after saturation of the beam stability factor, and the remaining decline in force analyzed and calculated. Slope of the overall governance and management using a combination of comprehensive measures to control the way. Sections for different types of parts used excavation, drainage, anchor (anchor) reinforcement, lattice protection, retaining piles, hanging three-dimensional geonet grass and earth monitoring and other measures of quality loose deposits under the conditions of formation of the anchor drilling using new technology for cable.The high slope complex geological conditions, the conventional drilling process difficult construction, in a loose accumulation of anchor under the conditions of formation of quality study used high-performance drilling process convenient mobile drilling rig as a major equipment, eccentric reaming drilling tool with improved significantly better than control sub-drilling construction program got into the way Wall grouting construction program to improve equipment and accessories include improvements in operational methods and personnel improvements. Equipment and accessories improvements include updates and additional equipment, improved drilling and grouting process, improve the pulling machine power, increasing the slope plate area and slope plate strength, catheter selection process with a certain toughness pipe, pipe boots and the tube connected between the spiral buckle, eccentric reaming and hole with the drill pipe impactor should be supporting the use of pins should be used to connect high-quality resilient steel production. Personnel to operate the improvements, including construction methods must be checked before partial heart rotation is flexible, selected drilling parameters should be "low-speed, low drill pressure, high gas velocity on the back" principle, each should be a strong blow from drilling a row powder, used for drilling the drill press, drill per centimeter diameter0.5-0.9kN appropriate. WOB with no more than drill pipe or casing to allow imposed WOB. Each pre-construction drilling, check and replace the connecting pin connecting pin, the connection pin can be fixed spot, every time you add drill pipe and casing, clean joints debris and smear grease protection, waste oil coated outer casing waste diesel, complete stratigraphic sections can be undisturbed for an ordinary drill with the construction, anchor grouting and timely extubation, extubation pull out section by section, if necessary, to give up the use of catheter measures. These measures reduce the drilling accident, saving the drilling, casing pipe boots and losses, improve efficiency, save time. With local original retaining wall and a single local governance compared to geological disaster management project, a variety of engineering measures combined with the ecological functions and integrated protection system more economical, more secure, to achieve the artificial and natural combination of environment and coordination. The steep slope of soil management and integrated measures to prevent the whole system will have a good economic, social and environmental benefits.This research addresses high Fengjie County People’s Hospital, north slope of governance issues, on the other has a high slope of the reference value.