Study On The Anti-sliding Piles Management And Monitoring For Landslide In Feima Of Chongqing

This paper based on a resettlement housing slope projects in Chongqing Pegasusdistrict. According to the geological structure, climatic conditions and other specificcircumstances of the site, we proposed unconventional way of excavation and support.Then we select significant rock formations (silty clay, strongly weathered mudstone,middle weathered mudstone and sandstone) as research subjects. We establish theappropriate structure finite element model of the slope. Then carried out a number ofcalculations like numerical calculations of slope stability, anti-slide pile internal forcecalculation, finite element simulation and feasibility study of landslide stabilizing pilesgovernance. In conclusion, by theoretical Study, numerical analysis, finite elementsimulation and field monitoring results, this paper presents the following mainconclusions:①According to geological exploration and site investigation, factors thatInfluence Pegasus slope include Internal reasons like geological conditions andearthquake etc. The external cause include rainfall, human engineering activities etc.The internal reasons provide geographical conditions for landslide, and the externalcause provide a Induced effect for Landslide. The possibility of landslides existsunder the two factors.②According to different geological conditions of the engineering, limitequilibrium method was adopted in calculating the overall safety factor of the slope.And in accordance with the basic elements of stabilizing piles cantilever. Adopt pilemethod, typical cross section was Selected. Then gives out Reliability analysis ofstabilizing piles and the position of maximum shear and maximum bending moment ofAnti-slide pile body.③According to different engineering conditions, we use MIDAS/GTSgeotechnical finite element analysis software to simulate, Established atwo-dimensional entity landslide plane unit. The analysis shows that the slope inoriginal state is unstable, possibility landslides Exists. Slope stability coefficient hasincreased after excavation, but still cann’t meet the required stability coefficient of theengineering. Thus illustrate the necessity of landslide Treatment. Using MIDAS/GTSgeotechnical finite element analysis software to simulate, the stability coefficient hasgreatly improved. Thus Instruct adopt stabilizing piles treatment is effective. The paperalso taking into account the weather and geological conditions, landslide stabilityunder heavy rainfall and earthquake are analyzed by finite element analysis. It can bedescribed that taking special way of excavation and support of the project is feasible in similar projects, and it also illustrates the anti-slide pile landslide method is aneffective measure.④Landslide monitoring was carried out according to the requirements, collationand analysis of monitoring data, then campire monitoring results and numericalcalculation with finite element analysis results. Thus proving stabilizing piles inlandslide treatment is feasible. Lifting of the potential security risks of the resettlementhousing in Chongqing Pegasus district. I hope to provide a reference for similarprojects.Achievements of this paper have been fully applied in Chongqing Pegasus districtresettlement housing project., Timely guidance to the design and constructionengineering, ensuring the security and stability of the slope. The treatment effect issignificant. Conclusion of this paper play a role in practical engineering. To supporthelp for the construction of rock slope engineering design and management. Thispaper not only has relatively new theoretical significance, but also bring good socialand economic benefits.