路基工程
路基工程
로기공정
SUBGRADE ENGINEERING
2011年
5期
23-25
,共3页
曲线偏角%圆曲线%缓和曲线%精度分析
麯線偏角%圓麯線%緩和麯線%精度分析
곡선편각%원곡선%완화곡선%정도분석
deflection angle%circular curve%easement curve%precision analysis
曲线型道路线形复杂,若能用简明且精度可靠的数学模型算出曲线偏角与夹角,必将在纵横断面测绘、边桩和中桩测设中提高其工作效率。对此,根据圆曲线、缓和曲线的特点,推导出弦线与切线夹角、切线与切线夹角、弦线与弦线夹角的一般计算方法和精确计算方法,结合实际数据进行了验证,并在长深高速公路唐山段勘测设计和施工中应用,提高了效率,保证了精度,收到了良好的效果。
麯線型道路線形複雜,若能用簡明且精度可靠的數學模型算齣麯線偏角與夾角,必將在縱橫斷麵測繪、邊樁和中樁測設中提高其工作效率。對此,根據圓麯線、緩和麯線的特點,推導齣絃線與切線夾角、切線與切線夾角、絃線與絃線夾角的一般計算方法和精確計算方法,結閤實際數據進行瞭驗證,併在長深高速公路唐山段勘測設計和施工中應用,提高瞭效率,保證瞭精度,收到瞭良好的效果。
곡선형도로선형복잡,약능용간명차정도가고적수학모형산출곡선편각여협각,필장재종횡단면측회、변장화중장측설중제고기공작효솔。대차,근거원곡선、완화곡선적특점,추도출현선여절선협각、절선여절선협각、현선여현선협각적일반계산방법화정학계산방법,결합실제수거진행료험증,병재장심고속공로당산단감측설계화시공중응용,제고료효솔,보증료정도,수도료량호적효과。
The line of curved road is complex.So if deflection angle and included angle can be worked out through simple and accurate mathematical model,the working efficiency in horizontal and vertical section mapping,border pile and king pile surveying will be inevitably improved.In this paper,according to the characteristics of circular curve and easement curve,the simple calculation method and accurate calculation method of the included angles for tangent line with tangent line,tangent line with chord line,and chord line with chord line are deduced.The calculation results are verified combined with actual data.These methods have been applied in surveying design and construction of Tangshan section in Changchun-Shenzhen Highway,which improved efficiency,ensured precision and achieved good effect.