必威体育精装版铁路回填区地基处理工程测量技术设计方案.docVIP

黄骅港三期铁路回填区地基处理工程一标段 测量技术设计方案 编制：__________________ 审核：__________________ 黄骅港三期铁路回填区地基处理工程一标段项目部 2011年9月10日 目 录 1.概述······························································3 2.控制测量··························································3 2.1场区平面控制网布设原则········································4 2.2场区平面及高程控制网的布设····································4 3.施工测量··························································4 3.1放样及高程控制················································4 3.2施工过程中的技术保证措施······································4 4.施工测量的组织与管理··············································5 4.1施工测量组织工作··············································5 4.2测量仪器的选用················································5 4.3测量仪器的管理················································5 4.4精度指标要求··················································5 4.5 GPS改正参数的设定·············································6 4.6 GPS精度检验···················································6 5.人员组织安排······················································6 6.质量保证体系······················································7 6.1质量保证体系分布图············································7 6.2质量保证要求··················································7 黄骅港三期铁路回填区地基处理工程一标段 测量技术设计方案 1.概述 1.1工程概况 工程名称：黄骅港三期铁路回填区地基处理工程一标段 工程业主：神华黄骅港务公司 设计单位：中交第一航务工程规划勘察设计院有限公司 工程内容：地基处理施工 1.2测量的任务和要求 本工程为黄骅港三期铁路回填区地基处理工程一标段，现场的测量控制为施 工控制的主要部分，故根据本工程的设计施工图和规范要求单独作本工程的此测 量技术方案，我方将严格按此方案进行施工测量。 1.3 地形及地貌 勘察区域位于黄骅港进港大门内北侧道路北侧，原为滨海滩涂，经近期回填 填形成陆地。场地已进行了场地平整。表层多为回填的粉土，其下为冲填的淤泥性土。场地高程约在+6.4m。 1.4 编制依据 1、《水运工程测量规范》（JTJ203-2001） 2、《水运工程质量检验标准》（JTS257-2008） 3、中交第一航务工程规划勘察设计院有限公司《黄骅港三期铁路回填区地基处理工程一标段施工图设计》 2.测量控制网的建立 本工程采用的坐标系统为黄骅港港口坐标系，高程系统为黄骅港理论最低 潮面为准。 根据现场情况布设成闭合导线或附合导线，闭合点或附合点为业主提供的首级、次级工程测量控制网点。工程测量微网的点位布设密度以能够满足施工现场的细部放样要求为准，导线边长大致相等。布设控制点的过程中，应综合考虑控制点能够便于施工，现场的通视情况良好，点位地基稳定、可靠、不易发生位移、沉降以及不易被破坏，便于保护等因素。施工过程中，可根据工程需要，需增加临时控制点时，其精度也应满足相应的等级要求。 2.1 场区平面控制网布设原则 1、平面控制应先从整体考虑，遵循先整体、后局部，高精度控制低精度的原则； 2、布设平面控制网形首先根据设计总平面图，现场施工平面布置图； 3、选点应选在通视条件良好、安全、易保护的地方