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目 錄 第一章 編制范圍、依據(jù)························································1 一、編制范圍··································································1 二、編制依據(jù)··································································1 三、編制原則··································································1 第二章 工程概況 ·······························································2 一、總體概況·······················
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二工區(qū)五郎溪漫水橋 施工方案 編制: 審核: 審批: 單位:成都華川公路建設(shè)集團(tuán) .華霆建設(shè) 二〇一六年六月 一.工程概況 我工區(qū)建設(shè)的拌合站及五郎溪大橋進(jìn)場(chǎng)便道由 X039縣道進(jìn)入跨 越五郎溪,因原跨越五郎溪的漫水橋橋面寬度 2 米,承載力為 20T, 無法滿足施工車輛通行能力。為保證整個(gè)第三合同段工程順利施工, 決定在五郎溪原漫水橋邊上再一座施工用漫水橋, 橋型布置圖見(附 圖 1五郎溪漫水橋橋型布置圖) 。擬建漫水橋橋長(zhǎng) 22.2 米,橋?qū)?4米, 設(shè)計(jì)使用時(shí)間至 2018年 12月。 根據(jù)現(xiàn)場(chǎng)勘查,五郎溪漫水橋位于懷化市芷江縣羅舊鎮(zhèn)白石坡村, 常水位 247.043m,最近 5 年最高水位為 248.343m,常水位時(shí)水面寬 度 30m。便橋處地質(zhì)情況參照地質(zhì)勘查報(bào)告, 橋址處地質(zhì)為卵石土層 厚為 4.1米,強(qiáng)風(fēng)化泥質(zhì)砂巖厚為 6.9米,其下為中風(fēng)化泥質(zhì)粉砂巖。 二.漫水橋設(shè)計(jì) 2