公路工程
公路工程
공로공정
JOURNAL OF HIGHWAY ENGINEERING
2014年
2期
111-114,138
,共5页
路基%冻胀%置换深度%计算方法%容许冻层厚度%季冻区
路基%凍脹%置換深度%計算方法%容許凍層厚度%季凍區
로기%동창%치환심도%계산방법%용허동층후도%계동구
subgrade%frost heaving%replacement depth%calculation method%allowed frozen depth%Seasonal Frozen Zone
为防止季东区公路路基产生冻胀病害,依据试验和观测结果,分析了路基土冻胀量沿冻深的分布规律。基于路面容许变形值,通过对观测数据的数理统计分析,提出了水泥混凝土和沥青混凝土路面的路基容许冻层厚度计算方法。最后,提出了半经验、半理论的公路路基置换深度计算方法。采用这种方法,简化了路基置换深度的计算过程,可以方便地推荐出不同条件下路基的置换深度。论文研究成果为季冻区公路路基设计及路面冻害的防治提供了理论依据及实用的设计方法。
為防止季東區公路路基產生凍脹病害,依據試驗和觀測結果,分析瞭路基土凍脹量沿凍深的分佈規律。基于路麵容許變形值,通過對觀測數據的數理統計分析,提齣瞭水泥混凝土和瀝青混凝土路麵的路基容許凍層厚度計算方法。最後,提齣瞭半經驗、半理論的公路路基置換深度計算方法。採用這種方法,簡化瞭路基置換深度的計算過程,可以方便地推薦齣不同條件下路基的置換深度。論文研究成果為季凍區公路路基設計及路麵凍害的防治提供瞭理論依據及實用的設計方法。
위방지계동구공로로기산생동창병해,의거시험화관측결과,분석료로기토동창량연동심적분포규률。기우로면용허변형치,통과대관측수거적수리통계분석,제출료수니혼응토화력청혼응토로면적로기용허동층후도계산방법。최후,제출료반경험、반이론적공로로기치환심도계산방법。채용저충방법,간화료로기치환심도적계산과정,가이방편지추천출불동조건하로기적치환심도。논문연구성과위계동구공로로기설계급로면동해적방치제공료이론의거급실용적설계방법。
To prevent from damages of frost heaving on highway subugrade in the Seasonal Frozen Zone,the law of frost heaving values distributing along the frozen depth is analyzed according to the re-sults of tests and observations .Based on the allowed deformation value of pavement,by the way of math-ematical statistics and analysis of observed data,the calculation method of allowed frozen thickness for cement and asphalt concrete pavement is proposed,too.Finally,the semi-experimental and semi-theo-retical calculation method for replacement depth of highway subgrade is proposed.In this way,the calcu-lation process is simplified conveniently to recommend the replacement depth values of subgrade under different conditions.The research achievement can provide theoretical base and practical design method for highway subgrade design and for preventing the frozen damages on pavement in Seasonal Frost Zone.