主线桥、匝道桥墩身施工方案

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1、1概述1.1 工程概况武青三干道立交位于武汉天兴洲公铁两用长江大桥南岸,立交主线(ZHUX)为规划三环路,即天兴洲大桥南岸公路引线。在本标段施工范围内,主线起点桩号为ZHUXK15+042.5,止点桩号为ZHUXK16+557.5(与正桥里程系统一致),接青化路立交主线,全长1515米。本立交由主线高架桥,被交路武青三干道,11条匝道桥梁(路堤),南北两侧的铺道及一座人行天桥共同组成。立交桥工程内容按武青三干道立交道路工程总体布置,立交桥梁工程包括:主线桥(即长江四桥公路引桥南岸主线高架桥)及WB、WC、WD、WE、WF、WG、WI、WJ、WK、WL共十条匝道桥以及立交人行辅道跨匝道的一座跨线

2、桥。主线桥桥墩(单幅桥)根据桥面宽度不同(单幅桥)分别采用双柱墩或三柱墩,墩柱共219个,截面尺寸分别为11001100mm和14001400mm,圆弧导角均为R=25mm的方柱墩,墩柱高度4.466m10.743 m。 匝道桥桥墩(单幅桥)根据桥面宽度不同分别采用圆形截面独柱或双柱桥墩共158个墩柱,其中1000mm的92个,1200mm的60个,1600mm的6个。墩身高度为1.7m8.2m。1.2 立交桥墩(柱)身参数 主线桥墩柱参数表 表1归属联左右线里程桩号墩号根数设计承台顶标高 (m)设计墩柱顶标高(m)墩身尺寸(m)设计墩身C30砼方量(m3)墩帽高度(m)设计墩帽C30砼方量(

3、m3)设计墩柱C30砼方量(m3)墩身高度左幅右幅左幅右幅第五联K15+072.5S072427.833.70933.78933.78933.7091.11.128.790028.795.9095.9895.9895.909K15+102.5S07342933.04333.12333.12333.0431.11.119.760019.764.0434.1234.1234.043K15+132.5S074429.132.46532.55532.55532.4651.11.116.50016.53.3653.4553.4553.365K15+162.5S075428.531.97832.05832

4、.05831.9781.11.117.030017.033.4783.5583.5583.478K15+192.5S076427.531.5831.6631.6631.581.11.119.940019.944.084.164.164.08K15+222.5S077426.531.27231.35231.35231.2721.11.123.290023.294.7724.8524.8524.772K15+252.5S07842531.06631.14631.14631.0661.11.121.811.612.534.316.0666.1466.1466.066第六联左K15+282.5S079

5、224.530.8330.9431.11.115.460015.466.336.443右K15+282.5S079224.530.95330.8731.11.115.520015.526.4536.373左K15+307.5S08022430.65330.8031.11.116.280016.286.6536.803右K15+307.5S08022430.81330.7231.11.116.380016.386.8136.723左K15+332.5S08122330.47530.6431.11.118.290018.297.4757.643右K15+332.5S08122330.65330.5

6、731.11.118.420018.427.6537.573左K15+357.5S082322.329.32129.41829.5161.11.120.031.612.6732.77.0217.1187.216右K15+357.5S082222.329.51529.4351.11.113.491.612.6726.167.2157.135第七联左K15+387.5S083321.329.08829.18529.3031.11.128.650028.657.7887.8858.003右K15+387.5S083221.329.31829.2231.11.119.290019.298.0187.9

7、23左K15+432.5S08432128.81828.91529.0131.11.128.730028.737.8187.9158.013右K15+432.5S08422129.03328.9531.11.119.340019.348.0337.953左K15+462.5S08531928.69128.78828.8861.11.129.721.612.6742.399.6919.7889.886右K15+462.5S08521928.88528.8051.11.119.951.612.6732.629.8859.805第八联左K15+487.5S08631929.53829.63529.7

8、431.11.138.620038.6210.53810.6410.74右K15+487.5S08621929.73329.6431.11.125.860025.8610.7310.64左K15+512.5S08731929.38229.48229.5831.11.138.050038.0510.38210.4810.58右K15+512.5S08721929.57329.4931.11.125.490025.4910.5710.49K15+537.5S08841929.35629.43629.43629.3561.11.142.571.612.555.0710.35610.4410.4410

9、.36第九联K15+562.5S08941929.19329.28329.28329.1931.11.149.550049.5510.19310.2810.2810.19K15+587.5S09041929.05629.13629.13629.0561.11.141.121.612.553.6210.05610.1410.1410.06第十联K15+617.5S091421.528.86328.94328.94328.8631.11.135.830035.837.3637.4437.4437.363K15+647.5S092421.528.68328.76328.76328.6831.11.1

10、34.960034.967.1837.2637.2637.183K15+677.5S09342128.50328.59328.59328.5031.11.136.530036.537.5037.5937.5937.503K15+707.5S09442128.32328.40328.40328.3231.11.135.640035.647.3237.4037.4037.323K15+737.5S09542128.14328.22328.22328.1431.11.134.770034.777.1437.2237.2237.143K15+767.5S09642127.97628.05628.05629.9761.11.128.631.612.541.136.9767.0567.0568.976第十一联左K15+797.5S09732127.

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