三工區(qū)縱向便道施工方案

1、三工區(qū)縱向便道施工方案施工便道施工方案三工區(qū)縱向便道施工方案三工區(qū)承建DK42+510DK63+900段工程，總計(jì)21.3km線路，主線內(nèi)橋梁工程占3.83km，公跨鐵立交橋長1.204km。大部分地段為旱田，少部分地段為水田、軟土段和溝塘。根據(jù)地質(zhì)情況、工程特點(diǎn)及以往的施工經(jīng)驗(yàn)，特制定以下施工方案：一、總體施工方案1土地利用橋位處便道采取永臨結(jié)合，在紅線外補(bǔ)征地6.82m修筑；涵洞處便道為不影響出口施工，在進(jìn)出口外側(cè)繞行；路基便道采取在永久征地界內(nèi)修筑。紅線外需補(bǔ)征土地共*.98m2o2位置DK52+300-DK63+900段橋位便道在線路左側(cè)修建其余地段便道在線路右側(cè)修建。路基便道修筑時(shí)，

2、路塹設(shè)在天溝側(cè)，填方設(shè)在排水溝側(cè)，左右轉(zhuǎn)換設(shè)在填挖交界處。3形式路基便道采用單向便道，路面頂寬3.5米；橋位處便道采用雙向便道，路面頂寬5.5m；邊坡坡率1：1，單線便道每隔200米設(shè)一處會(huì)車道，會(huì)車道路面寬度5.5米，長度10米，兩端變寬長度為5米，會(huì)車道總長為20米。路面為泥結(jié)碎石路面，厚度16cm。二、具體施工措施1）便道通過水田、軟土段、河道處，拋填山皮石處理，厚度不超過1米，可根據(jù)現(xiàn)場(chǎng)實(shí)際情況適當(dāng)調(diào)整，填筑厚度為0.5米。2）便道通過旱田地段，填筑厚度為0.5米，可根據(jù)現(xiàn)場(chǎng)地形情況適當(dāng)調(diào)整。橋位處便道根據(jù)實(shí)際情況換填或拋填山皮石0.5m厚。3）便道填料采用山皮土或建筑垃圾，拋填料采用

3、山皮石。4）便道外側(cè)修建土溝，深0.3米，底寬0.3米，上口寬0.5米。5）便道坡度不大于10%，特殊地段不大于15%。便道路面設(shè)3%橫向坡度。6）養(yǎng)護(hù)：主要利用工區(qū)租賃的機(jī)械設(shè)備進(jìn)行養(yǎng)護(hù)，局部利用人工養(yǎng)護(hù)，只要出現(xiàn)坑（凹）或連續(xù)降雨后立即進(jìn)行養(yǎng)護(hù)。三、便涵、便橋施工泄水小溝渠和灌溉渠采用埋設(shè)涵管的方式通過，數(shù)量及里程見附表。便道工程數(shù)量計(jì)算表段落里程長度填高路基底面路基頂面路面寬既有路面寬征地清表填土方量泥結(jié)碎石（厚0.16m）挖淤拋填（片石）人工挖土溝備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+558480.54.823.823.5103.68

4、28.115.76橋位處修筑雙向便道，路基段修筑單向便道；路基段便道不在紅線外征地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+3005400.54.823.823.51166.40316.2264.8DK44+3

5、00-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+9112010.56.825.825.5804635.16 182.0

6、324.12DK46+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+2469220.56.825.825.536882913.5

7、2834.96110.64DK50+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橋位處修筑雙向便道，路基段修筑單向便道；路基段便道不在紅線外征地DK52+500-DK53+4009000.54.823.823.51321.92527.04108

8、DK53+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+20313400.54.823.823.51

9、968.19784.70160.8DK58+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-DK62+2632130

10、.54.823.823.5312.85124.731239.67 494.2525.56DK62+263-DK63+1078440.54.823.823.5101.28DK63+107-DK63+9007930.54.823.823.51164.76464.3895.16會(huì)車道DK44+328 20 0.5DK44+528 20 0.5DK44+728 20 0.5DK44+928 20 0.5DK45+128 20 0.5DK45+328 20 0.5DK45+528 20 0.5DK45+931 20 0.5DK46+131 20 0.5DK46+331 20 0.5DK46+531 20

11、 0.5DK47+111 20 0.5DK47+311 20 0.5DK47+511 20 0.5DK47+711 20 0.515.00 4.8015.00 4.8015.00 4.8015.00 4.8015.00 4.8015.00 4.8015.00 4.8015.00 4.8015.00 4.8015.00 4.8015.00 4.8015.00 4.8015.00 4.8015.00 4.8015.00 4.80DK42+928200.5DK43+128200.5DK43+328200.5DK43+528200.5DK43+728200.5DK43+928200.5車道DK44+1

12、28200.515.004.8015.004.8015.004.8015.004.8015.004.8015.004.80會(huì)15.004.80DK49+084200.5DK49+284200.5DK50+446200.5DK50+646200.5DK50+846200.5DK51+046200.5車道DK51+246200.5DK51+446200.5DK51+646200.5DK51+846200.5DK52+046200.5DK52+246200.5DK52+446200.5DK52+646200.5DK52+846200.5DK53+046200.5DK53+246200.5DK53+4

13、46200.5DK53+646200.5DK53+846200.5DK54+046200.5DK54+246200.5DK54+446200.5DK54+646200.5DK54+846200.5DK55+308200.5DK55+508200.5DK55+708200.5車道DK55+908200.515.004.8015.004.8015.004.8015.004.8015.004.8015.004.80會(huì)15.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.

14、004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.80會(huì)15.004.80DK56+108200.5DK56+308200.5DK56+508200.5DK56+708200.5DK56+908200.5DK57+108200.5DK57+308200.5DK57+508200.5DK57+708200.5DK57+908200.5DK58+108200.5DK59+588200.5DK59+788200.5DK59+988200.5DK6

15、0+188200.5DK60+388200.5DK60+588200.5DK60+788200.5DK60+988200.5DK61+188200.5DK61+388200.5車道DK61+588200.5DK61+788200.5DK61+988200.5DK62+188200.5DK62+388200.5DK62+588200.5DK62+788200.5DK62+988200.515.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.80會(huì)15.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.8015.004.80DK63+188200.5DK63+388200.5DK63+588200.5DK63+788200.5計(jì)15.004.8015.004.