Study On The Stability Of The Blocking Dam Of The Yangxiuqing Waste Soil Treatment Project In Kunming

This article takes the proposed blocking dam(No.1 retaining dam,No.2 retaining dam)as the research object,and the downstream of the dam is Xilu South County Residential area,Qingshuihe residents group,Li Rongfu agricultural home.The safe operation of blocking dams involves the lives and property safety of downstream residents.The research used a comprehensive research method combining field investigation,theoretical analysis and simulation calculations to conduct a series of systematic analysis and research on the static and dynamic stability of the dam,providing reliable support for the design,construction and safety management of the area in accordance with.The specific research contents are as follows:(1)Based on the field survey work in the research area,the engineering geological conditions of the Yangbeiqing waste dump were identified,and the engineering geological conditions in the research area were analyzed in detail and described in detail.Combined with outdoor drilling and related tests,the basic physical and mechanical parameters of the rock and soil body are obtained.(2)The limit equilibrium method(Swedish arc method,Bishop method)was used to analyze and calculate the static and dynamic stability of the blocking dam according to the relevant national technical specifications,and the blocking dam was obtained at different dam heights(22m,27 m,32m,37 m,42m)and the stability factor under different working conditions(normal working conditions,heavy rain working conditions,special working conditions),and for the situation where the safety factor of the blocking dam does not meet the specification requirements,corresponding reinforcement measures are proposed and their stability calculated.(3)A series of analyses were conducted on the dynamic seismic stability of the No.1 blocking dam in the study area under different dam heights and different working conditions,and the acceleration,relative velocity,and shear stress of the blocking dam under earthquake under different conditions were obtained The distribution,dynamic stability,safety factor time-history variation law and the displacement of the blocking dam,etc.,and the relevant comparative analysis of the seismic response characteristics of the dam body under various conditions.(4)The research results of this paper: The earth dam under each dam height under the normal working conditions and heavy rain conditions of the proposed No.1 blocking dam in the study area is stable.It does not meet the specifications and needs to be hardened.Summary: Reinforcement measures are taken when the No.1 blocking dam in the study area is planned to be higher than 32m(including 32m),The proposed No.2 blocking dam is stable under various dam heights(22m,27 m,32m,37 m,42m)and various working conditions(normal working conditions,heavy rain working conditions,special working conditions).