##大学毕业设计成雅高速公路K26+200滑坡治理工程设计作者姓名:李国忠学号:20102911专业:土木工程指导教师:刘尊稳【摘要】本设计以成雅高速公路K24滑坡勘察报告为依据,分析了滑坡的工程地质条件及基本特征。在此基础上研究了影响滑坡失稳的因素,进而分析了滑坡的成因机制。然后对滑坡的稳定性进行了定性评价,并采用极限平衡原理和传递系数法,计算出滑坡的稳定性系数和滑坡推力,对滑坡稳定性进行了定量评价。在此基础上提出了两种治理方案,按照“经济合理,工期短,工程技术可行,治理效果安全可靠”的设计原则,从中选取了抗滑桩+排水工程+削坡反压+路面路基恢复的治理方案,对滑坡做了治理设计。【关键词】滑坡;稳定性;治理设计;抗滑桩;排水工程##大学毕业设计ThepreventiondesignofthetheChengyahighwayK24landslideName:ZhaoHechuanStudentNo.:200403010405Major:CivilEngineering(GeotechnicalEngineering)Supervisor:WangXiaoqunAbstract:Basedonthegeo-technicaldataoftheChengyahighwayK24landslide,thegeologicalconditionaboutthelandslidewasstudied,thenthefactorswhichtamperedwiththeslope’sstabilitywereconstrued,thereasonswhichcausedthelandslidewereanalyzedandthelandslide’sstabilitywasestimated.Accordingtotheunbalancethrusttransmissioncoefficientmethod’sprincipleandsupposition,thelandslide’sstabilitycoefficientwascalculated.Thenthelandslide’sstabilitywasappraised.Basedontheanalysis,twotreatmentmeasureswereadvanced.Accordingtotheresultoftheslopestabilitycalculation,thedesignprinciplewasthattheprojectcostwasreasonable,timelimitfortheprojectwasmuchless,thetechniquewaspossibleandtheprojectwassimpleandeasytoconstruct.Finally,areviseddesigningprogramhasbeenchosen,whichincludedanti-slidepile,drainageworksandexcavatingtheslopandbackfillingthesoil.Atlast,theslope’sdesignationofremedyingengineeringwasmade.Keywords:landslide,stability,anti-slidepile,drainageworks兰州交通大学博文学院毕业论文(设计)I目录第1章前言.......................................................11.1选题依据及其意义............................................11.2滑坡治理主要方法研究........................................11.3设计依据及设计思路..........................................21.3.1设计依据..............................................21.3.2设计思路..............................................21.4本次设计主要成果............................................3第2章滑坡区自然地理及工程地质条件................................52.1自然地理条件................................................52.1.1地理位置..............................................52.1.2气象水文..............................................52.2滑坡工程地质条件............................................52.2.1地形地貌..............................................52.2.2地层岩性..............................................62.2.3岩土体的物理力学性质..................................72.2.3地质构造与地震效应....................................72.2.4水文地质条件..........................................7第3章滑坡基本特征................................................93.1滑坡的基本特征..............................................93.2滑坡变形特征................................................93.3滑坡体结构特征..............................................93.4滑带及滑床结构特征.........................................103.5滑坡成因机制分析...........................................123.5.1影响因素.............................................123.5.2成因机制.............................................12第4章滑坡稳定性分析.............................................144.1滑坡稳定性定性评价.........................................144.2滑坡稳定性定量评价.........................................144.2.1滑坡计算参数选取.....................................144.2.2剖面选取.............................................154.2.3计算工况.............................................16兰州交通大学博文学院毕业论文(设计)II4.2.4计算原理与结果.......................................164.2.5潜在滑面稳定系数计算.................................174.2.6滑坡稳定性综合评价...................................184.3滑坡推力计算...............................................194.3.1安全系数的选取.......................................194.3.2滑坡推力计算原理.....................................194.3.3滑坡推力计算结果.....................................20第5章滑坡治理设计...............................................235.1治理设计原则...............................................235.2治理设计依据...............................................235.3滑坡治理方案拟定...........................................235.4滑坡治理方案比选...........................................245.5滑坡治理工程分项设计.......................................245.5.1抗滑桩布置和选型.....................................245.5.2抗滑桩内力计算.......................................255.5.3抗滑桩内力结果.......................................285.5.4抗滑桩的配筋设计.....................................325.6排水工程设计...............................................355.6.1原坡脚排水沟维护.....................................355.6.2盲沟设计.............................................355.6.3截水沟设计...........................................355.7削坡和反压设计.............................................36结论.............................................................37致谢............................................................38参考文献...........................................................39附图.............................................................40兰州交通大学博文学院毕业论文(设计)1第1章前言1.1选题依据及其意义滑坡是一种地质灾害,滑坡的发生可能会导致河流堵塞,交通阻断,电力、通讯措施受损,房屋被毁,和其他的经济损失,甚至会造成人员伤亡。我国大部分地区为山区,高原和丘陵分布广,故滑坡灾害发生密度大,频率高,我国已成为世界上受滑坡危害最严重的国家之一,每年因滑坡灾害造成的损失数以亿计,给国家和人民生命财产带来巨大损失,产生严重社会影响。要致富,先修路,随着我国经济的发展,需要修建大量的公路。在修建公路的过程中会遇到很多滑坡,特别是在西部,遇到的滑坡稳定问题越来越突出。为了减小滑坡给人类带来的损失,需要对滑坡的治理工程进行准确分析,完做出合理的,有效的设计。为了检验在校四年的学习成果,选取了成雅高速公路K24滑坡治理作为毕业设计。成雅高速公路K24滑坡