Ye Jiapo Landslide Treatment Design And The Study Of Critical Pile Spacing

MinXian region due to the effect of strong tectonic in Gansu, landslide disaster aredeveloped. The Ye Jiapo landslide happen in Ye Jiapo village in the ChaBu town, belong tolarge mixed landslide, The line of Wei Wu Expressway C5from front into Ye Jiapo landslide,once the landslide instability, will directly threatening the safety of C5line, therefore, it isnecessary to design management for this landslide.In this paper, Taking Ye Jiapo landslide as the research object, through data collection,field exploration and laboratory testing to find out the basic characteristics of the landslide,causes and mechanism of formation, etc, and thus its stability calculation and evaluation, thelandslide thrust calculation, the anti-slide pile design calculations, and given the specificdesign of the landslide treatment plan. In the process of Landslide designing, due to thelimitations, the tunnel beside the anti-slide pile spacing is too large.In order to verify whether the pile spacing to meet the requirements, this paper analyzesthe various critical predecessors pile spacing calculation method, calculated by comparingproject examples, and found critical pile spacing results vary widely. Since these algorithmsare all based on certain assumptions, so the algorithms have certain deficiencies andlimitations, after comprehensive comparison, choose a more scientific and reasonable pilespacing Zhou Depei calculation model for calculating formula is derived in detail. As ZhouDepei algorithm assumes that after landslide thrust pile rectangular distribution along thelength of the pile, not entirely consistent with the actual, so this algorithm is improved, andthis algorithm corresponding improvement and improved formula with the anti-slide pilespacing calculated for verification, and found near the tunnel anti-slide piles spacing is toolarge, does not meet the requirements. Finally, the analysis the influence of boundary markersin the spacing factor and its relationship, according to the critical factors pile spacing tooptimize the design of the landslide.