Research On The Stability Of Hutubi Shimen Bridge Foundation Slope In Xinjiang Provincial Highway101Line

Combining with the systems engineering geological analysis method andnumerical simulation techniques,the stability of Hutubi Shimen Bridge Foundation havestudied in this dissertation and the bridge base structure optimization design andgovernance measures have proposed targetedly.First of all,according to the site surveydata to identify engineering geological conditions of the Shimen Bridge cross-straitslope:natural geography,topography,geological structure,lithology,hydrogeological haveanalysised the Rock Slope basic characteristics of the Shimen Bridge and preliminarilyjudged the bank stability using stereographic projection.Then according to the study onthe bridge site borehole data,combining with the slope rockmass quality classificationand slope stability evaluation method，using the Matlab fuzzy logic inference system offuzzy set theory combined with China slope mass rating(CSMR) method to classify thebank slope rock mass quality.Subsequently,the finite element software ABAQUScombined with the strength reduction method have calculated the stability coefficient ofHutubi Shimen Bridge cross-strait slope under natural conditions,excavationconditions,the bridge loads as well as the heavy rains and reservoir storage,andcompared the results with the specification value to evaluate quantitatively thecross-strait slope stability.Through the study of the stress-strain nephogram drawn invarious stages can conclude that the right bank slope is in an unstable state,but the leftbank slope is stable;artificial disturbance on the bank slope stability is lessaffected;During the operational phase, the two sides are in an unstable state in Shimenhydropower water case. In view of this,the authors propose to take anchor protectivemeasures on both sides of the strait slope in the process of the construction of thebridge. The topics for the Bridge Foundation Slope and similar rock slope governance anddesign to provide a reliable basis,its research is not only beneficial to the project’sconstruction and operation safety,but also has a certain reference value to a similaranalysis of the slope of the bridge foundation reinforcement work.Finally,theintroduction of genetic algorithm optimization strategies is used to optimize the designof cross-strait abutment structure to achieve the purpose of the project cost savings.