ICS07.060 CCSP13 12 天津市地方标准 DB12/T1166—2022 地面沉降水准测量规范 Specificationsforlandsubsidenceleveling 2022-10-18发布 2022-11-15实施 天津市市场和质量监督管理委员会  发布 DB12/T1166—2022 I目次 前言.................................................................................III 1范围................................................................................1 2规范性引用文件......................................................................1 3术语和定义..........................................................................1 4总则................................................................................2 目的任务........................................................................2 工作内容........................................................................2 基本要求........................................................................2 5技术设计............................................................................2 布设原则........................................................................2 设备选型........................................................................3 测量精度........................................................................3 测量频率和时间..................................................................5 设计书编写......................................................................5 6水准点选埋与维护....................................................................5 选点............................................................................5 标石类型........................................................................5 点名............................................................................5 水准点埋设......................................................................5 点之记绘制......................................................................6 其他规定........................................................................6 7水准观测............................................................................7 测前准备........................................................................7 水准路线观测要求................................................................7 外业计算........................................................................8 补测和重测......................................................................9 分层标专项沉降监测要求..........................................................9 8数据处理...........................................................................10 基准选择.......................................................................10 测量数据平差...................................................................10 沉降量计算.....................................................................10 图件编制.......................................................................10 报告编写.......................................................................11 9成果验收与汇交.....................................................................11 成果验收.......................................................................11 成果汇交.......................................................................11 DB12/T1166—2022 II附录A（资料性）水准环和水准路线命名.................................................13 附录B（资料性）地面沉降水准测量技术设计书编制.......................................14 B.1地面沉降水准测量技术设计书.....................................................14 B.2任务概述.......................................................................14 B.3测区自然地理概况和已有资料情况.................................................14 B.4引用文件.......................................................................14 B.5技术指标.......................................................................14 B.6设计方案.......................................................................15 附录C（资料性）水准点建设样式.......................................................17 附录D（资料性）水准点点之记.........................................................19 附录E（资料性）标孔分布图...........................................................20 附录F（资料性）水准点普查表..........................................................21 附录G（资料性）地面沉降量区间分级设色...............................................22 附录H（资料性）技术总结编制..