Study On Landslide Characteristics And Control Engineering Of Shi Ma Shao Dump In Yunnan Province

The safety and stability of the dump are affected and controlled by the engineering hydrological conditions of the site,soil discharge process,and external environmental factors.Improper site selection,inadequate foundation treatment,unreasonable stacking technology,unscientific protective measures and ultra-high and excessive stacking and disposal will all lead to diseases of the dump.In the mountainous areas of yunnan where the geological environment is complex,the phenomenon of diseases in the dump is relatively prominent,which has formed the potential safety accidents or disasters in the dump.The economic development and environmental protection of mines are seriously restricted.Therefore,it is of great significance to reasonably plan mine production and construction,implement relevant national and local policies and requirements,effectively control every link in the construction process of the dump,and do a good job in preventing and controlling the diseases of the dump.In this paper,the landslide of shi ma shao dump in yunnan province is taken as the research object.To ascertain the geological background conditions,basic characteristics and genetic conditions of the landslide through various exploration means.The stability of landslide is analyzed and evaluated,and prevention and control design research and engineering effect evaluation are carried out.The main research results are as follows:This paper takes the landslide of a mine in yunnan as the research object.The geological background conditions,the basic characteristics,the genetic conditions and the forming mechanism of the landslide are ascertained.1.The engineering geology,hydrogeology and other environmental background conditions of the landslide area and its surroundings were found out.The basic characteristics of landslide were identified.he rock and soil parameters of sliding body,sliding belt and sliding bed are obtained.The influencing factors and forming mechanism of landslide are analyzed.The landslide is a super-large deep bedded earth filling landslide,and the sliding surface is a contact zone between the pile and the original slope.2.The topographic conditions of the dump are complex,and there are red clay layers with poor engineering geological properties in the basement.Under the background conditions of poor drainage of surface water,large amount of infiltration softening and increasing slope weight,and inadequate safety protection measures,the continuous unreasonable soil discharge induces the landslide disaster of the dump.3.The stability of the landslide as a whole and the leading edge of the landslide under different working conditions is analyzed.The results show that the landslide is in a stable state as a whole under the present condition,and in an unstable state as a part under the condition of heavy rainstorm,and there is the possibility of sliding failure.The quantitative calculation agrees with the qualitative analysis.4.According to the characteristics and stability of the landslide,combined the protection objects,Through analysis and comparison,the landslide prevention plan is determined:clearing and load reduction + Anti-slide pile + drainage measures + retaining wall + retaining dam.Through the implementation of the prevention and control project,the landslide disaster has been effectively controlled,the stability of the landslide has been improved,the safety of the protected objects has been ensured,and good social andeconomic benefits have been achieved.It can provide reference for landslide prevention and control of similar dump.