Study On The Optimization Design Of High Slope Treatment Technology At Xinsheng Port

Slope stability has always been an important research content in geotechnical engineering circles.It involves road engineering,water conservancy and hydropower engineering,construction engineering,bridge engineering,tunnel engineering and many other engineering fields.With the rapid development of China's engineering construction,the high slope management technology needs to be optimized and perfected.The reinforcement and protection of the slope are closely related to the safe operation of the structure and affect the cost of the slope engineering.The treatment of high slopes is a geological disaster prevention project with complicated technology and difficult construction.Therefore,it is of great significance to optimize the design of high slope treatment technology.The paper is based on the first phase of the new work area of chongqing port,summarizes the treatment techniques used in the slope,analyzes the stability of the slope,and analyzes the main factors that lead to the instability of the slope.Combined with the characteristics of the port slope treatment,the optimization design of the slope treatment is carried out,and the optimal design of excavation,bolt and prestressed anchor cable is carried out.The two-dimensional calculation model of the slope is established by using the discrete element software UDEC to analyze the deformation and failure modes of each excavation stage and the stability of the side slope excavation side support.The main conclusions are as follows:(1)The stability of the slope is mainly influenced by the characteristics of rock and soil,hydrogeological conditions,weathering,climatic effects and earthquakes.A,B,C three sections of embankment slope using principle are slope stability calculation software for slope stability calculation,the results show that by 1:2 put slope,A,B,C slopes the interface of geotechnical and packing inside in the stable state.For the excavation slope of J and K sections,it can be seen from the corresponding chipping chart that the slope of J section is perpendicular to the rock strata,and the slope is tangent to the slope.Fracture ? and slope to nearly consistent,according to 1:1 to put after the slope,the crack will not exist;Fracture ? planes intersecting line is located in the inner slope and strata,prone to wedge slope destruction form.The slope stability is controlled by the strength of rock mass.(2)Based on anchor reinforcement mechanism and the slope of prestressed anchorage parameters of the key factors carried out and the optimal design of prestressed anchor cable,anchor and retaining wall construction technology of anchor bolt and anchor cable construction technical requirements for detailed instructions.Governance has carried on the design of the slope,it is concluded that two kinds of feasible solution,through technology,construction possibility,impact on the environment and safety engineering economy,the optimal solution is obtained.(3)Based on discrete element software state of J,K,period of excavation slope in two-dimensional modeling analysis,the displacement of the excavation process of before and after optimization,the shear stress and stability coefficient were compared,results show that the optimization design has obtained good control effect.