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元坝气田17亿立方米/年滚动建产地面集输工程YB27-1/2～YB29复线管道工程YB204-1～YB205段桩号BC17-BC35土建施工施工方案编制人：审核人：批准人：四川德阳庆达实业有限公司2016年05月16日2目录第一章、概述1、工程概况··························································42、编制依据及规范····················································43、施工内容及现场情况················································5第二章、施工准备1、技术准备··························································82、施工队伍准备······················································83、物资准备（机械、材料、资金）·······································114、建立项目HSE管理制度··············································115、现场施工条件准备··················································12第三章、施工方案1、测量······························································132、土石方开挖························································143、土石方回填························································184、水工保护··························································22第四章、各项管理和保证措施1、管理目标保证措施·················································282、工程质量保证措···················································283、安全技术保证措施·························294、文明施工保证措施·························295、工期保证措施···························30第五章施工进度计划·················································32第六章工作危害分析表················································33第七章应急预案1、应急预案·························································372、编制依据·························································383、组织管理职责·····················································394、应急程序·························································415、事故危险状态识别·················································4436、应急预案报告程序·················································457、应急指令及应急指挥···············································468、疏散程序·························································489、救护方案·························································4810、管道破坏预案····················································4911、沟槽塔方预案····················································4912、泄露预案························································4913、恢复常态工作····················································504第一章概述第一节工程概况1、工程概况：1.1、本工程概况：本工程为元坝气田17亿立方米/年滚动建产地面集输工程YB27-1/2～YB29复线工程,天然气管道管沟土石方开挖及回填工程。1.2、工程名称：站外部分集输管网YB204-1～B205土建施工1.3、工程起止范围：YB204-1~YB205.起点里程为2km+258.3m，桩号BC17；终点里程为4km+254.4m，桩号BC35、实际长度约为2.833公里2、编制依据及施工规范根据元坝气田17亿立方米/年滚动建产地面集输工程YB27-1/2～YB29复线工程施工蓝图。和现场踏勘实际情况及国家现行的法律、法规，地区颁发的安全、消防、环保等管理规定。2.1、编制依据《中华人民共和国安全生产法》(2014修订)《建设工程安全生产管理条例》国务院第393号（2004）《中华人民共和国节约能源法》主席令第90号(1997)《中华人民共和国环境保护法》(主席令第九号)【2015-01-01实施】《中华人民共和国水土保持法》主席令第38号(2010)《中华人民共和国防洪法》(1997年)《中华人民共和国野生动物保护法》(主席令第24号)（2009年修正本）《中华人民共和国土地管理法》(1998年8月29日)《中华人民共和国消防法》(1998年5月1日实施)《建设项目环境保护管理条例》国务院令第253号（1998）《中华人民共和国石油天然气管道保护法》主席令（第三十号）(2010)《建设工程安全生产条例》国务院令393号（2003）2.2、施工质量规范中石化江汉油建工程有限公司质量手册Q/JHJG3001-2012中石化江汉油建工程公司质量控制程序Q/JHJGQP-2012中石化江汉油建工程有限公司项目质量计划编制导则Q/JHJ2128-20125国家现行的有关规定、规范给水排水构筑物工程施工及验收规范GB50141-2008土方与爆破工程施工及验收规范GB50201-2012建筑地基基础工程施工质量验收规范GB50202-2002（2011版）砌体工程施工质量验收规范GB50203-2011混凝土结构工程施工质量验收规范GB50204-2002（2011版）钢结构工程施工质量验收规范GB50205-2011屋面工程质量验收规范GB50207-2012地下防水工程质量验收规范GB50208-2011建筑地面工程施工质量验收规范GB50209-2010建筑装饰装修工程质量验收规范GB50210-2011给水排水管道工程施工及验收规范GB50268-2008建筑工程施工质量验收统一标准GB50300-2013建筑基坑工程检测技术规范GB50497-2009建筑地基处理技术规范JGJ79-2012埋地钢质管道阴极保护参数测量方法GB/T21246-2007埋地钢质管道阴极保护技术规范GB/T21448-20082.3、安全规范石油化工建设工程施工安全技术规范GB50484-2008施工现场临时用电安全技术规范JGJ46-2005建筑施工土石方工程安全技术规范JGJ180-20093、施工内容及现场情况本段管道与已建成营运的输气管道近距离并行，施工前须查明该管道的位置、埋深及走向，施工过程中严格控制作业带宽度，严禁采用爆破方式施工。3．1、BC31~BC35桩管道斜坡向上敷设后，紧靠井场水泥公路敷设，本段管道2次穿越宽约2.0~3.0m的乡村土路，2次穿越宽约3.5~4.0m的村级水泥公路，车流量较小，可采用开挖方式通过，管顶距路面深度不宜小于2.5m，穿越水泥公路建议采取套管保护措施3．2、BC26~BC30桩管道穿越一小型河流后沿阶梯状斜坡向上敷设，斜坡被各级平台6分割，坡角约20°~40°，各级陡坎高约1.5~4.0m，局部为近于直立的陡坡、陡崖，坡体松散堆积层厚度不均，陡坡、陡崖段强~中风化基岩广泛出露地表，陡坡、陡崖段施工过程中易发生崩落、掉块、垮塌等现象，施工时应尽量降低对边坡的扰动，管道宜嵌入中风化稳定基岩内，及时清除破碎、松动的危岩，沟槽开凿后应及时回填、封固，并对下部管道采取防撞击措施，同时采取适宜的护坡稳管和水工保护措施。阶梯状斜坡上覆崩坡积土层结构较松散，厚度不均，管沟开挖易发生沟壁坍塌以及各级陡坎土体垮塌；管道应尽量避开雨季施工，严格控制作业带宽度，避免对斜坡土体造成过大扰动，要密切注意斜坡上方土体的稳定性，充分利用现有平台，自上而下、逐级施工，及时回填，迅速修复受损的堡坎，并采取适宜的护坡稳管和水工保护措施。3．3、BC25~BC26桩管道穿越一小型河流，河床宽约15.0m，勘察期间水量较小，水面宽约6.0m，水深约0.2~0.3m，最深处约0.5m，河床质为漂石、块石及卵石，调查厚度约1.5m，下伏为中风化粉砂岩，本段河流属山区雨源型溪沟，具暴涨暴落的特征，源短流急，雨季流量大、流速快，具较强的冲刷作用，过沟段管道宜嵌入中风化稳定基岩内，采用混凝土封固，并采取防冲刷和防浮稳管措施，同时对穿越段两侧岸坡采取防冲刷措施。斜坡段坡体呈阶梯状，斜坡上覆崩坡积土层结构较松散，厚度不均，管沟开挖易发生沟壁坍塌以及各级陡坎土体垮塌；管道应尽量避开雨季施工，严格控制作业带宽度，避免对斜坡土体造成过大扰动，要密切注意斜坡上方土体的稳定性，充分利用现有平台，自上而下、逐级施工，及时回填，迅速修复受损的堡坎，并采取适宜的护坡稳管和水工保护措施。3.4、BC20~BC26桩管道沿阶梯状陡斜坡向下敷设，斜坡被各级平台分割，坡角约20°~40°，各级陡坎高约1.5~4.0m，局部为近于直立的陡坡、陡崖，坡体松散堆积层厚度不均，陡坡、陡崖段强~中风化基岩广泛出露地表，陡坡、陡崖段施工过程中易发生崩落、掉块、垮塌等现象，施工时应尽量降低对边坡的扰动，管道宜嵌入中风化稳定基岩内，及时清除破碎、松动的危岩，沟槽开凿后应及时回填、封固，并对下部管道采取防撞击措施，同时采取适宜的护坡稳管和水工保护措施。阶梯状斜坡上覆崩坡积土层结构较松散，厚度不均，管沟开挖易发生沟壁坍塌以及各级陡坎土体垮塌；管道应尽量避开雨季施工，严格控制作业带宽度，避免对斜坡土体造成过大扰动，要密切注意斜坡上方土体的稳定性，充分利用现有平台，自上而下、逐级施工，及时回填，迅速修复受损的堡坎，并采取适宜的护坡稳管和水工保护措施。3.5、BC17~BC21桩管道沿阶梯状陡斜坡向下敷设，斜坡被各级平台分割，坡角约20°~40°，各级陡坎高约1.5~4.0m，局部为近于直立的陡坡、陡崖，坡体松散堆积层厚度7不均，陡坡、陡崖段强~中风化基岩广泛出露地表，陡坡、陡崖段施工过程中易发生崩落、掉块、垮塌等现象，施工时应尽量降低对边坡的扰动，管道宜嵌入中风化稳定基岩内，及时清除破碎、松动的危岩，沟槽开凿后应及时回填、封固，并对下部管道采取防撞击措施，同时采取适宜的护坡稳管和水工保护措施。阶梯状斜坡上覆崩坡积土层结构较松散，厚度不均，管沟开挖易发生沟壁坍塌以及各级陡坎土体垮塌；管道应尽量避开雨季施工，严格控制作业带宽度，避免对斜坡土体