顶管方案轨道交通站DN800污水管顶管专项施工方案

【顶管方案】轨道交通站DN800污水管顶管专项施工方案XXX城市轨道交通XXX号线土建XXX工区XXX站站0DN800污水管顶管专项施工方案编制：审核：审批：XXX企业有限企业XXX城市轨道交通XXX号线工程施工总承包土建XXX工区项目经理部20XXX年年XXX月顶管专项施工方案目录第一章：编制说明...................................................第1页共36页............................................................................................51.1、编制依据.............................................................................................................................................51.2、合用范围.............................................................................................................................................61.3、编制说明.............................................................................................................................................6第二章：工程概况...............................................................................................................................................62.1、工程情况.............................................................................................................................................62.2、工程概述.........................................................................................................工程简介...................................................第2页共36页......................................................主要工程数量.........................................................................................................阻碍物情况................................................................................................................................82.3、地质水文条件.........................................................................................................地质构造.........................................................................................................水文地质情况..........................................................................................................................102.4、重难点剖析^p^p及措施.........................................................................................................工作井施工...................................................第3页共36页......................................................顶管施工..................................................................................................................................11第三章：施工安排.............................................................................................................................................123.1、施工准备.........................................................................................................技术准备.........................................................................................................现场准备.........................................................................................................施工用电准备..........................................................................................................................133.2资料计划及管理...................................................第4页共36页...............................................................................163.3、主要机具设备需用量计划...............................................................................................................163.4、工期安排.........................................................................................................工期安排原则.........................................................................................................计划工期..................................................................................................................................193.5、劳动力投入计划.........................................................................................................人员安排基来源则.........................................................................................................人员安排要求...................................................第5页共36页.......................................................................20第四章：组织机构.............................................................................................................................................214.1、组织机构建立...................................................................................................................................214.2、项目部组织机构图...........................................................................................................................21第五章：施工工艺及施工方法.........................................................................................................................225.1、整体施工思路...................................................................................................................................225.2、整体工艺流程...................................................................................................................................235.3、降排水措第6页共36页施.......................................................................................................................................245.4、工作井及接收井搅拌桩、旋喷桩加固...................................................搅拌桩施工工艺.........................................................................................................桩体检测.........................................................................................................成桩质量控制.........................................................................................................技术保障.........................................................................................................高压旋喷桩施工工艺.........................................................................................................第7页共36页设计要求及施工方法.........................................................................................................高压旋喷桩质量控制措施......................................................................................................30顶管专项施工方案高压旋喷桩对周边环境影响及预防措施..............................................................................305.5、顶力估量、背墙抗推能力验算、通风能力验算...................................................顶进阻力估算.........................................................................................................管道最大同意顶力验算..........................................................................................................后背墙土抗推能力验算..........................................................................................................第8页共36页管内通风计算..........................................................................................................................315.6、工作井、接收井及背墙.........................................................................................................工作井、接收井设计.........................................................................................................沉井施工.........................................................................................................护壁井施工.........................................................................................................导轨安装.........................................................................................................背墙施工.........................................................................................................第9页共36页工作坑施工同意偏差..............................................................................................................405.7、顶进设备安装.........................................................................................................主顶装置.........................................................................................................顶铁.........................................................................................................工作平台和防备棚架.........................................................................................................工作坑防护.........................................................................................................起重机械...................................................第10页共36页...............................................................................425.8、顶进施工.........................................................................................................整体施工步骤.........................................................................................................工具管安装与始发.........................................................................................................下管就位.........................................................................................................管前挖土与出土.........................................................................................................管内照明与通风.........................................................................................................顶进及顶进测量...................................................第11页共36页......................................................校订纠偏..................................................................................................................................465.9、管道接口...........................................................................................................................................465.10、工具管出洞.....................................................................................................................................475.11、管外缝隙注浆封闭.........................................................................................................................47第六章：施工监测.............................................................................................................................................486.1、监测的目的和意义...........................................................................................................................486.2、监测范第12页共36页围...........................................................................................................................................496.3、监测点布设.......................................................................................................................................496.4、监测内容的实行及丈量方法.........................................................................................................沉降测量.........................................................................................................水平位移测量.........................................................................................................变形监测控制网的布设.........................................................................................................丈量技术及要求.........................................................................................................第13页共36页............526.6、监测频率...........................................................................................................................................526.7、监测报警值.......................................................................................................................................53第七章：施工质量保证措施.............................................................................................................................537.1、本工程的质量目标...........................................................................................................................537.2、工程质量保证体系...........................................................................................................................537.3、工程质量技术控制...........................................................................................................................537.4、顶管施工质量保证...................................................第14页共36页........................................................................53顶管专项施工方案第八章：顶管施工常有问题及应付措施.........................................................................................................548.1、导轨偏移...........................................................................................................................................548.2、后靠背严重变形、位移或损坏.......................................................................................................548.3、丈量仪器移动...................................................................................................................................558.4、管端破损...........................................................................................................................................558.5、管接口渗漏.........................................................................................................第15页共36页..............................568.6、管壁裂痕与管壁渗漏.......................................................................................................................568.7、地面沉降...........................................................................................................................................578.8、严重偏高...........................................................................................................................................578.9、左右误差较大...................................................................................................................................578.10、严重偏低.........................................................................................................................................588.11、主顶推力过大.................................................................................................................................58第九章：施工安全保证措施...................................................第16页共36页..........................................................................589.1、安全控制目标...................................................................................................................................589.2、成立安全生产管理组织机构...........................................................................................................599.3、安全保证体系...................................................................................................................................599.4、重要危险辨别与控制.........................................................................................................危害识别.........................................................................................................风险控制.........................................................................................................主要工种及要点工程第17页共36页施工安全措施........................................................................................629.5、“四个凡是、五个必须”...............................................................................................................639.6、地下管线保护“7个100%”...........................................................................................................639.7、扬尘防治7个100%..........................................................................................................................639.8、安全保证措施...................................................................................................................................63第十章：安全应急预案.....................................................................................................................................6510.1、应抢营救小组.........................................................................................................第18页共36页........................6510.2、应抢营救领导小组.........................................................................................................................6510.3、应抢营救平时工作小组.................................................................................................................6610.4、事故应急处理与善后小组.............................................................................................................6710.5、常有事故的应抢营救措施.........................................................................................................坍塌.........................................................................................................高处坠落.........................................................................................................触电.........................................................................................................第19页共36页中毒.......................................................................................................................................6910.6、应急物件和设备配备.........................................................................................................应急物品.........................................................................................................应急设备................................................................................................................................6910.7、应急响应.........................................................................................................应急启动条件和分级.........................................................................................................响应程第20页共36页序.........................................................................................................应急结束................................................................................................................................7110.8、应抢营救联系通信录.....................................................................................................................7110.9、医院及联系电话.............................................................................................................................71第十一章：环境保护、文明施工及各方协调.................................................................................................7311.1、环境保护.........................................................................................................................................7311.2、文明施工...................................................第21页共36页......................................................................................73顶管专项施工方案11.3、各方协调.........................................................................................................协调工作涉及到的单位或人员...................................................协调措施................................................................................................................................7411.4附件....................................................................................................................................................74顶管专项施工方案第一章：编制说明1.1、编制依照第22页共36页序号编制依照编号法律法例1建设工程质量管理条例国务院第279号2建设工程安全生产管理条例国务院第393号标准规范1给水排水管道工程施工及查收规范GB50268-20212混凝土结构设计规范GB50010-20213建筑地基基础工程施工质量查收规范GB50202-20214钢筋混凝土结构工程质量查收规范GB50204-20215建设工程施工质量统一查收标准GB50300-20216城市防洪工程设计规范GBT50805－20217钢筋焊接及查收规程JGJ18-20218深圳市基坑支护技术规范SJG05-20219建筑施工高处作业安全技术规范JGJ80-202110建筑基坑工程监测技术规范GB50497-202111混凝土质量控制标准GB50164－202112给水排水构筑物工程施工及查收规范GB50141-202113建设工程施工现场供用电安全规范GB50194-202114施工现场暂时用电安全技术规范JGJ46202115地下防水工程质量查收规范GB50208-202116工程丈量规范GB50026-202117顶进施工法用钢筒混凝土管JC/T2092-202118给水排水工程顶管技术规程CECS246:202119建筑深基坑工程施工安全技术规范JGJ311-202120深圳市地基办理技术规范SJG04-2021设计文件及地质资料1坳背站给排水管线设计图纸坳背站地质勘查资料第23页共36页其余编制依照1《深圳市城市轨道交通14号线工程施工组织设计（方案）审察管理方法》中铁深地14号线2021】17号文招标文件、施工合同顶管专项施工方案1.2、合用范围本施工方案为深圳地铁14号线坳背站污水顶管施工方案，主要波及东西侧顶管、工作井、接收井施工，内容包含总体施工组织、主要施工工艺及方法、文明施工等内容。1.3、编制说明1、依据工程施工图设计，并联合我企业的施工实力、技术、资和机具的配置能力，以及施工的丰富经验等要素，编制本工程施工方案。在编制本方案前，联合本工程的特色、难点及要点，全面、科学地安排工作。2、人员方面：召集拥有顶管工程施工经验、组织能力强的管理人员参加；3、机械设备方面：依据本工程实质状况，装备充分的施工机械、丈量仪器、查验仪器、试验设备；对关键工程或要点工序进行充分合理的组织，解决好各工序的施工扰乱以及施工时期的交通疏解。第二章：工程概略2.1、工程状况第24页共36页工程名称深圳市城市轨道交通14号线给排水管线及迁改工程（土建四工区坳背站）工程地址深圳市龙岗区坳背村建设规模60米建设单位深圳市地铁企业有限企业勘探单位中国铁路设计企业有限企业设计单位深圳市城市规划设计研究院有限企业监理单位铁科院（北京）工程咨询有限企业施工单位中铁五局企业有限企业2.2、工程概括工程简介深圳市龙岗区保安社区雨污分流管网工程坳背路污水主管需横跨地铁14号线坳背站主体结构，因为红棉四路污水管需下穿四联河坳背支流2-5.6__3m过路箱涵，下穿后与坳背路污水管集合后上跨地铁14号线坳背站沿坳背路敷设，因为污水管标高与站体标高存顶管专项施工方案在矛盾，污水管需从车站降板区穿过。同时因为雨污分流工程和车站施工工序上存在矛盾，该部分管网施工由车站主体代为修建。图图：雨污分流工程涉414号线地铁平面图本次雨污分流代建工程顶管施工波及两个顶管井（一个护壁井、一个沉井），两个接收井。南端西侧顶管采纳DN800第25页共36页钢筋混凝土顶管，顶管与围护结构平行部署，距离围护结构2.2m，顶管埋深约4.48m，顶管长度约30m，顶管工作井采纳6300__4100沉井施工，下沉深度约6.87m，接收井采纳护壁井，开挖深度约5.81m；南端东侧顶管采纳DN800钢筋混凝土顶管，顶管与围护结构基坑平行部署，距离围护结构1.9m~4.3m，顶管埋深约5.18m，顶管长度约30m，顶管工作井采纳护壁井，开挖深度约6.56m。本次顶管路线WF01-WF02-WF03、WF04-WF04A采纳顶管施工。图图顶管地点平面图主要工程数目本工程顶管埋深均在4m～5m，工程量见下表：14号线坳背站站雨污分流干管顶管专项施工方案表表顶管工程量一览表阻碍物状况表表顶管工程量一览表序号起止里程数量阻碍物状况1WF01-WF02-WF0310KV电缆线（7回）、电信管线（7根）2WF04-WF05-WW12-WW11-WW10根7电信线3WF04-WF04A3根电信线第26页共36页2.3、地质水文条件地质结构深圳市城市轨道交通14号线工程坳背站沿线所经地域的地层主要为第四系崭新统人工聚积层（Q4ml）、第四系崭新统冲洪积层（Q4al+pl）、第四系残积层（Qel）、石炭系C1c）砂岩、碎屑灰岩，不一样时代各地层间为不整合接触或断层接触，本工段原始地貌主要为冲洪积地貌单元，局部为残丘台地残积区，受后期城市开发建设影响，沿线地形整体较平坦。但据钻探揭穿，本场所不良填筑土厚度较大。因为顶管施工未进行专项地质勘探，地质状况参照主体结构地质状况。南端西侧顶管参照主体左线DK23+308.048~DK23+349.248范围内的地质状况；南端东侧顶管参照主体右线DK23+349.248~DK23+389.328范围内的地质状况。该地区范围内陆质主要散布为Q4ml素填土和杂填土层，Q4al+pl粉质粘土、淤泥质粘性、泥炭质粘性土层。表表：坳背站地质状况表时代成因散布范围颜色状态特色描绘Q4ml位于此刻道路范围内灰色、灰黑色、黄褐色、褐红色可塑为主，局部硬塑层厚0.7~5.4m，主要成分为粉质粘土及黏土，混砂砾序号起止里程第27页共36页数目(m)名称备注1WF01-WF02-WF0330D800Ⅲ钢承口砼顶管横穿道路2WF04-WF04A30D800Ⅲ钢承口砼顶管横穿河流共计60顶管专项施工方案主要在里程DK23+519~DK23+478散布浅灰色、褐黄色、灰色稍湿～湿，松懈～稍密层厚2.0～2.4m，主要成分为碎块石主要在DK23+236～DK23+304、DK23+361～DK23+520分布杂色松懈，稍湿～湿层厚0.50～6.90m，均匀厚度2.49m，主要成份为建筑垃圾、生活垃圾，夹少许碎石及粗砾砂Q4al+pl主要在里程DK23+293～DK233+388、DK23+405～DK23+504段零星散布灰黑色、深灰流塑～软塑层厚1.00～7.10m，均匀厚度3.60m，富含有机质，局部夹腐木，稍具臭味，局部含许多砂粒，质纯、味臭，浸水体胀，干燥缩短主要在里程DK23+293～DK23+304、DK23+337～DK23+361、DK23+401～DK23+487段散布灰黑色、深灰流塑～可塑层厚0.50～19.60m，均匀厚度4.56m，含大批有机质，夹许多腐木，稍具臭味，局部含许多砂粒主要散布在里程DK23+271～第28页共36页DK23+288、DK23+337～DK23+471周边灰黄色、黄褐色软塑～可塑层厚0.60～8.70m，均匀厚度3.11m，局部含少许粉粒、砂粒场所范围内大多数有散布黄褐色、褐黄色、灰黑色、褐灰色、深灰色、棕褐色等软塑～坚硬层厚0.50～18.00m，均匀厚度3.74m，局部含少许砂粒主要散布在里程DK23+253～DK23+260、DK23+470～DK23+505周边灰绿色、深灰色密实状层厚0.70～14.70m，均匀厚度3.26m，局部含少许黏粒、砂粒主要散布在里程DK23+253～DK23+260、DK23+320～DK23+401、DK23+460～DK23+466、DK23+476～DK23+503段灰色、浅灰色饱和，松懈～中密层厚0.70～4.10m，均匀厚度1.69m，主要矿物成分为石英、长石等，含少许黏粒主要散布在里程DK23+334、DK23+401～DK23+405、DK23+460周边黄褐色、灰白色饱和，稍密～密实层厚0.70～8.00m，均匀层厚3.92m，主要矿物成分为石英、长石等，局部含少许黏性土主要散布于DK23+236～DK23+455段灰黄色、灰黑色饱和，稍密～密实层厚0.60～17.50m，主要矿物成分为石英、长石等，含约少许黏粒、砂砾及卵石主要散布于DK23+209～DK23+225、DK23+371～DK23+405、DK23+459～DK23+487段灰黄色、灰色、灰白色饱和，稍密～密实层厚1.50～8.90m，均匀厚度3.63m，主要矿物成分为石英、长石等，含少许黏性土主要散布于DK23+202、第29页共36页DK23+243、DK23+321、DK23+338、DK23+401～DK23+405、DK23+466、DK23+509处灰白色、黄褐色稍密～密实，饱和层厚1.00～7.90m，均匀厚度3.30m，主要成分为石英、长石，由砾砂及圆砾充填，局部含砾砂和卵石Qel主要散布与里程DK23+243～DK23+361段褐黄色、灰白色、紫红色、灰褐色、灰黄色、褐红色可塑～坚硬层厚1.00～7.90m，均匀厚度3.30m，主要由碎屑灰岩风化残积而成，含有少许石英砂砾顶管专项施工方案C1c本层散布在DK23+202～DK23+225、DK23+243～DK23+355段灰白色、青灰色等坚硬土状层厚0.70～9.00m，均匀厚度2.98m，原岩结构已基本破坏，尚可辨识本层散布在DK23+243～DK23+371段灰色、灰白色等坚硬土状层厚0.80～7.90m，原岩组织结构大多数破坏，多已风化成土主要在DK23+202、DK23+254、DK23+293、DK23+355、DK23+393处灰白色、灰色软质岩石层厚1.30～16.40m，均匀厚度4.73m，原岩组织结构大多数破化，多已风化成块状，部分岩块强度较高，夹中等风化岩块本层主要散布在DK23+293～DK23+388、DK23+426～DK23+504、DK23+599～DK23+666段第30页共36页灰白色、青灰色等较破裂的较硬岩层厚0.20～30.90m，沿节理出现次生矿物，风化裂隙发育。锤