三工区纵向便道施工方案.docx

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1、三工区纵向便道施工方案 三工区纵向便道施工方案三工区承建DK42+510DK63+900段工程，总计21.3km线路，主线内桥梁工程占3.83km，公跨铁立交桥长1.204km。大部分地段为旱田，少部分地段为水田、软土段和沟塘。根据地质情况、工程特点及以往的施工经验，特制定以下施工方案： 一、总体施工方案1土地利用桥位处便道采取永临结合，在红线外补征地6.82m修筑； 涵洞处便道为不影响出口施工，在进出口外侧绕行； 路基便道采取在永久征地界内修筑。红线外需补征土地共14934.98。 2位置DK52+300-DK63+900段桥位便道在线路左侧修建其余地段便道在线路右侧修建。路基便道修筑时，路

2、堑设在天沟侧，填方设在排水沟侧，左右转换设在填挖交界处。 3形式路基便道采用单向便道，路面顶宽3.5米； 桥位处便道采用双向便道，路面顶宽5.5m； 边坡坡率1：1，单线便道每隔200米设一处会车道，会车道路面宽度5.5米，长度10米，两端变宽长度为5米，会车道总长为20米。路面为泥结碎石路面，厚度16cm。 二、具体施工措施1）便道通过水田、软土段、河道处，抛填山皮石处理，厚度不超过1米，可根据现场实际情况适当调整，填筑厚度为0.5米。 2）便道通过旱田地段，填筑厚度为0.5米，可根据现场地形情况适当调整。桥位处便道根据实际情况换填或抛填山皮石0.5m厚。 3）便道填料采用山皮土或建筑垃圾，

3、抛填料采用山皮石。 4）便道外侧修建土沟，深0.3米，底宽0.3米，上口宽0.5米。 5）便道坡度不大于10%，特殊地段不大于15%。便道路面设3%横向坡度。 6）养护：主要利用工区租赁的机械设备进行养护，局部利用人工养护，只要出现坑（凹）或连续降雨后立即进行养护。 三、便涵、便桥施工泄水小沟渠和灌溉渠采用埋设涵管的方式通过，数量及里程见附表。 便道工程数量计算表段落里程长度填高路基底面路基顶面路面宽既有路面宽征地清表填土方量泥结碎石（厚0.16m）挖淤抛填（片石）人工挖土沟备注米米米米米米平方米平方米立方米立方米立方米立方米立方米旱地DK42+510-DK42+558480.54.823.8

4、23.5103.6828.115.76桥位处修筑双向便道，路基段修筑单向便道； 路基段便道不在红线外征地DK42+558-DK42+7281700.56.825.825.5680537.20153.9520.4DK42+728-DK43+0403120.54.823.823.5673.92182.7137.44DK43+040-DK43+3603200.54.823.823.5691.20187.3938.4DK43+360-DK43+7604000.54.823.823.5864.00234.2448DK43+760-DK44+3005400.54.823.823.51166.40316.2

5、264.8DK44+300-DK44+9256250.54.823.823.51350.00366.0075DK44+925-DK45+5626370.54.823.823.51375.92373.0376.44DK45+562-DK45+7311590.56.825.825.5636502.44143.9919.08DK45+731-DK45+9652340.54.823.823.5505.44137.0328.08DK45+965-DK46+7107450.54.823.823.51609.20436.2789.4DK46+710-DK46+9112010.56.825.825.58046

6、35.16182.0324.12DK46+911-DK47+0701590.54.823.823.5343.4493.1119.08DK47+070-DK47+6505800.54.823.823.51252.80339.6569.6DK47+650-DK47+8001500.54.823.823.5324.0087.8418DK47+800-DK48+884840.56.825.825.5336265.4476.0710.08DK48+884-DK49+3244400.54.823.823.5950.40257.6652.8DK49+324-DK50+2469220.56.825.825.5

7、36882913.52834.96110.64DK50+246-DK50+5923460.54.823.823.5508.20202.6241.52DK50+592-DK50+8302380.54.823.823.5349.57139.3728.56DK50+830-DK51+6007700.54.823.823.51130.98450.9192.4旱地DK51+600-DK52+5009000.54.823.823.51321.92527.04108桥位处修筑双向便道，路基段修筑单向便道； 路基段便道不在红线外征地DK52+500-DK53+4009000.54.823.823.51321.

8、92527.04108DK53+400-DK54+3009000.54.823.823.51321.92527.04108DK54+300-DK55+0047040.54.823.823.51034.04412.2684.48DK55+004-DK55+1081040.56.825.825.5709.28223.4894.1812.48DK55+108-DK56+0008920.54.823.823.51310.17522.36107.04DK56+000-DK56+8638630.54.823.823.51267.57505.37103.56DK56+863-DK58+20313400.54

9、.823.823.51968.19784.70160.8DK58+203-DK59+38811850.56.825.825.58081.72546.331073.14142.2DK59+388-DK60+2638750.54.823.823.51285.20512.40105DK60+263-DK60+5653020.54.823.823.5443.58176.8536.24DK60+566-DK61+4008340.54.823.823.51224.98488.39100.08DK61+400-DK62+0506500.54.823.823.5954.72380.6478DK62+050-D

10、K62+2632130.54.823.823.5312.85124.7325.56DK62+263-DK63+1078440.54.823.823.51239.67494.25101.28DK63+107-DK63+9007930.54.823.823.51164.76464.3895.16会车道DK42+928200.515.004.80DK43+128200.515.004.80DK43+328200.515.004.80DK43+528200.515.004.80DK43+728200.515.004.80DK43+928200.515.004.80会车道DK44+128200.515.

11、004.80DK44+328200.515.004.80DK44+528200.515.004.80DK44+728200.515.004.80DK44+928200.515.004.80DK45+128200.515.004.80DK45+328200.515.004.80DK45+528200.515.004.80DK45+931200.515.004.80DK46+131200.515.004.80DK46+331200.515.004.80DK46+531200.515.004.80DK47+111200.515.004.80DK47+311200.515.004.80DK47+511

12、200.515.004.80DK47+711200.515.004.80DK49+084200.515.004.80DK49+284200.515.004.80DK50+446200.515.004.80DK50+646200.515.004.80DK50+846200.515.004.80DK51+046200.515.004.80会车道DK51+246200.515.004.80DK51+446200.515.004.80DK51+646200.515.004.80DK51+846200.515.004.80DK52+046200.515.004.80DK52+246200.515.004

13、.80DK52+446200.515.004.80DK52+646200.515.004.80DK52+846200.515.004.80DK53+046200.515.004.80DK53+246200.515.004.80DK53+446200.515.004.80DK53+646200.515.004.80DK53+846200.515.004.80DK54+046200.515.004.80DK54+246200.515.004.80DK54+446200.515.004.80DK54+646200.515.004.80DK54+846200.515.004.80DK55+308200

14、.515.004.80DK55+508200.515.004.80DK55+708200.515.004.80会车道DK55+908200.515.004.80DK56+108200.515.004.80DK56+308200.515.004.80DK56+508200.515.004.80DK56+708200.515.004.80DK56+908200.515.004.80DK57+108200.515.004.80DK57+308200.515.004.80DK57+508200.515.004.80DK57+708200.515.004.80DK57+908200.515.004.80

15、DK58+108200.515.004.80DK59+588200.515.004.80DK59+788200.515.004.80DK59+988200.515.004.80DK60+188200.515.004.80DK60+388200.515.004.80DK60+588200.515.004.80DK60+788200.515.004.80DK60+988200.515.004.80DK61+188200.515.004.80DK61+388200.515.004.80会车道DK61+588200.515.004.80DK61+788200.515.004.80DK61+988200

16、.515.004.80DK62+188200.515.004.80DK62+388200.515.004.80DK62+588200.515.004.80DK62+788200.515.004.80DK62+988200.515.004.80DK63+188200.515.004.80DK63+388200.515.004.80DK63+588200.515.004.80DK63+788200.515.004.80合计14934.9838254.206413241.14242445.48三工区便涵统计表序号里程所属工区孔径（m）排数每孔长度（m）每座涵总长度（m）备注1DK43+429三工区0.5144泄水2DK44+007.50.5144泄水3DK44+8500.5144泄水4DK45+9230.52612泄水5DK45+8470.5248泄水6DK46+8700.52612泄水7DK49+10012612泄水8DK50+7600.5144泄水合计0.5m涵管48241.0m涵管126 第 6 页 共 6 页