附带曲线校核方法

附带曲线校核方法一、 现场判别附带曲线1、 由于附带曲线紧附于道岔之后，它的位置、长度等是受一定条件限制的，尤其是方向圆顺与否将直接影响列车通过道岔和曲线的平衡与安全，因此对股道内紧接道岔后面的曲线要判别是否是附带曲线。2、 如果在曲线尾两股轨道有一段平行段，则在曲线尾向股道内方，连续量n个点（不少于3个点）的线间距，取其平均值做为线间距D（注：线间距D取值精确到0.001m）。如果线间距不超过5.2m，则为附带曲线；否则按一般曲线对待。二、 附带曲线的技术要求：1、 半径：既不可小于导曲线半径，也不宜大于导曲线半径的1.5倍，并应取为50m的整数倍2、 夹直线：即道岔终端至至附带曲线起点间的距离。一般条件下，不短于12m，困难条件下，不应短于6m。3、 轨距：按一般曲线轨距标准进行加宽。加宽递减，一般条件下，不大于1%。，困难条件下，向道岔方向的递减率不得大于3%。。4、 水平：可设适当超高，但最大不应超过15mm。一般情况下，9号道岔可设10mm超高,12号道岔可设15mm超高。超高顺坡最大不得超过2.5%。，且顺坡终点不应进入长岔枕。5、 方向：附带曲线采用圆曲线,不设缓和曲线。方向应保持圆顺，用10m弦量正矢，其连续差，到发线上不超过3mm,站线上不超过4mm。三、 附带曲线校核步骤：1、量取现场附带曲线所有正矢点的正矢（共n个正矢点），求其总和才；计算圆曲线部分正矢总和，f.,求其圆曲线平均正矢f.M,反算现场附带曲线半径R（1）12#道岔常用附带曲线正矢布置图：其中：R=400Jf=207L=33.256其中：R=300L=33.198Jf=278R:附带曲线半径L:附带曲线全长才:正矢和4、 现场布置附带曲线正矢点及曲线要素点：在辙叉跟端，用方尺作侧股的直角方向，交于侧股外轨，以此为。点，沿侧股外轨丈量夹直线长度1值（I值为道岔终端至附带曲线头距离）,即为附带曲线起点（ZY或YZ点），量曲线半长L/2值，定出曲线中点（QZ点），从QZ点再量曲线半长L/2值，定出曲线终点（YZ或ZY点）。用对称布桩法从QZ点按5米桩布置正矢点。正矢点编号从0号桩编起，顺里程方向编号。5、 根据新布的正矢点，重新量正矢，然后按要求拨正附带曲线。6、 在ZY（或YZ）点外（即在直线上）按要求做好轨距加宽递减和超高顺坡递

岔号半径R(m)曲线长L(m)正矢总和Jf(mm)各点正矢分布012345678910111213141/9(6°20'25〃)18019.919275346969693420022.13227714363636343125027.6652781549505050491530033.198278232424242424232235038.73128014363636363636361440044.263277327313131313131312731/12(4°45’49〃)33027.4362101137383838371135029.0992101536363636361540033.256207224313131313124245037.413210827282828282827850041.572070162525252525252516055045.7272114212323232323232321460049.88420910212121212121212121101/18(3°10’47〃)80044.3971422131616161616161613285047.1721414141515151515151514490049.9471407141414141414141414795052.722137010131313131313131313100100055.497145212131313131313131313122105058.2711484121212121212121212121212124110061.04612807111111111111111111111170115063.82113119111111111111111111111191120066.59612129101010101010101010101092附表1附带曲线要素表

附带曲线要素表常用道岔附带曲线始点位置表（道岔终端至曲线头距离）道岔号码道岔类型道岔全长L（m）道岔后长（复式交分为道岔中心至辙叉跟端距离）（m）导曲线半径（m）附带曲线半径R（m）线间距D（m）44.14.24.34.44.54.64.74.84.955.15.29#木枕43轨单开（图号：TB399-75）、木枕50轨单开（图号：TB399-75、专线4141、叁标7403）、混凝土枕50轨单开（图号：专线（02）4151）28.84815.00918018011.24312.14913.05413.9614.86515.77116.67617.58218.48719.39320.29821.20422.10920010.13511.04111.94612.85213.75714.66315.56816.47417.37918.28519.1920.09621.0012507.3668.2729.17710.08310.98811.89412.79913.70514.6115.51616.42117.32718.2323006.4077.3138.2189.12410.02910.93511.8412.74613.65114.55715.4629#木枕60轨单开（图号：专线4194）29.56915.73018018010.52211.42812.33313.23914.14415.05015.95516.86117.76618.67219.57720.48321.3882009.41410.3211.22512.13113.03613.94214.84715.75316.65817.56418.46919.37520.282506.6457.5518.4569.36210.26711.17312.07812.98413.88914.79515.716.60617.5113006.5927.4978.4039.30810.21411.11912.02512.9313.83614.741

道岔号码道岔类型道岔全长L（m）道岔后长（复式交分为道岔中心至辙叉跟端距离）（m）导曲线半径（m）附带曲线半径R（m）线间距D（m）44.14.24.34.44.54.64.74.84.955.15.29#混凝土枕60轨单开（图号：SC390C）29.56915.7301901909.96810.87411.77912.68513.5914.49615.40116.30717.21218.11819.02319.92920.8342009.41410.3211.22512.13113.03613.94214.84715.75316.65817.56418.46919.37520.282506.6457.5518.4569.36210.26711.17312.07812.98413.88914.79515.716.60617.5113006.5927.4978.4039.30810.21411.11912.02512.9313.83614.7419#混凝土枕60轨单开（图号：铁联线051）29.74015.7251901909.97310.87911.78412.6913.59514.50115.40616.31217.21718.12319.02819.93420.8392009.41910.32511.2312.13613.04113.94714.85215.75816.66317.56918.47419.3820.2852506.657.5568.4619.36710.27211.17812.08312.98913.89414.815.70516.61117.5163006.5977.5028.4089.31310.21911.12412.0312.93513.84114.7469#木枕43轨复式交分（图号:叁标线6022）、木枕50轨复式交分（图号：叁标线6016、专线6054）30.05015.0092202209.0279.93310.83811.74412.64913.55514.4615.36616.27117.17718.08218.98819.8932507.3668.2729.17710.08310.98811.89412.79913.70514.6115.51616.42117.32718.2323006.4077.3138.2189.12410.02910.93511.8412.74613.65114.55715.4623506.3557.268.1669.0719.97710.88211.78812.693附表2-2常用道岔rlJ带曲线始点位表（道岔终端至曲线头距离）附表2-2常用道岔rlJ带曲线始点位表（道岔终端至曲线头距离）附表2-3常用道岔附表2-3常用道岔带曲线始点位置表（道岔终端至曲线头距离）道岔号码道岔类型道岔全长L（m）道岔后长（复式交分为道岔中心至辙叉跟端距离）（m）导曲线半径（m）附带曲线半径R（m）线间距D（m）44.14.24.34.44.54.64.74.84.955.15.29#混凝土枕60轨复式交分（图号：CZ2509）31.49015.7302202208.3069.21210.11711.02311.92812.83413.73914.64515.5516.45617.36118.26719.1722506.6457.5518.4569.36210.26711.17312.07812.98413.88914.79515.716.60617.5113006.5927.4978.4039.30810.21411.11912.02512.9313.83614.7413506.5397.4458.359.25610.16111.06711.97212#木枕43轨单开（图号：TB399-75）、木枕50轨单开（图号：TB399-75、专线4103）36.81519.96233033014.47915.68316.88718.09119.29520.521.70422.90824.11225.31626.5227.72528.92935013.64714.85116.05517.25918.46319.66820.87222.07623.2824.48425.68826.89328.09740011.56712.77113.97515.17916.38317.58818.79219.99621.222.40423.60824.81326.0174509.48810.69211.89613.114.30415.50916.71317.91719.12120.32521.52922.73423.9385007.4088.6129.81611.0212.22413.42914.63315.83717.04118.24519.44920.65421.858

常用道岔附带曲线始点位置表（道岔终端至曲线头距离）道岔号码道岔类型道岔全长L（m）道岔后长（复式交分为道岔中心至辙叉跟端距离）（m）导曲线半径（m）附带曲线半径R（m）线间距D（m）44.14.24.34.44.54.64.74.84.955.15.212#木枕50轨单开（图号：专线4147）、木枕60轨单开（图号：专线4128）、混凝土枕50轨单开（图号：专线4257）、混凝土枕60轨单开:图号：SC330）37.90721.05435035012.55513.75914.96316.16717.37118.57619.78020.98422.18823.39224.59625.80127.00540010.47511.67912.88314.08715.29116.49617.70018.90420.10821.31222.51623.72124.9254508.3969.610.80412.00813.21214.41715.62116.82518.02919.23320.43721.64222.8465006.3167.528.7249.92811.13212.33713.54114.74515.94917.15318.35719.56220.7665506.6447.8489.05210.25711.46112.66513.86915.07316.27717.48218.68612#混凝土枕60轨提速单开（图号：铁联线004A、专线4249、专线4228）37.80021.20835035012.40113.60514.80916.01317.21718.42219.62620.8322.03423.23824.44225.64726.85140010.32111.52512.72913.93315.13716.34217.54618.7519.95421.15822.36223.56724.7714508.2429.44610.6511.85413.05814.26315.46716.67117.87519.07920.28321.48822.6925006.1627.3668.579.77410.97812.18313.38714.59115.79516.99918.20319.40820.6125506.497.6948.89810.10311.30712.51113.71514.91916.12317.32818.532

常用道岔附带曲线始点位置表（道岔终端至曲线头距离）道岔号码道岔类型道岔全长L（m）道岔后长（复式交分为道岔中心至辙叉跟端距离）（m）导曲线半径（m）附带曲线半径R（m）线间距D（m）44.14.24.34.44.54.64.74.84.955.15.212#木枕50轨复式交分（图号：叁标线6019）39.95019.96238038012.39913.60314.80716.01117.21518.4219.62420.82822.03223.23624.4425.64526.84940011.56712.77113.97515.17916.38317.58818.79219.99621.222.40423.60824.81326.0174509.48810.69211.89613.114.30415.50916.71317.91719.12120.32521.52922.73423.9385007.4088.6129.81611.0212.22413.42914.63315.83717.04118.24519.44920.65421.8585506.5327.7368.9410.14411.34912.55313.75714.96116.16517.36918.57419.7786006.868.0649.26910.47311.67712.88114.08515.28916.49417.69812#混凝土60轨复式交分（图号：SC350、CZ2529）42.13221.05438038011.30712.51113.71514.91916.12317.32818.53219.73620.9422.14423.34824.55325.75740010.47511.67912.88314.08715.29116.49617.718.90420.10821.31222.51623.72124.9254508.3969.610.80412.00813.21214.41715.62116.82518.02919.23320.43721.64222.8465006.3167.528.7249.92811.13212.33713.54114.74515.94917.15318.35719.56220.7665506.6447.8489.05210.25711.46112.66513.86915.07316.27717.48218.6866006.9728.1779.38110.58511.78912.99314.19715.40216.606

附表2-6常用道岔附带曲线始点位置表(道岔终端至曲线头距离)附表2-6道岔号码道岔类型道岔全长L(m)道岔后长(复式交分为道岔中心至辙叉跟端距离)(m)