《郑西客运专线基础工程沉降观测指导方案》由会员分享，可在线阅读，更多相关《郑西客运专线基础工程沉降观测指导方案（85页珍藏版）》请在金锄头文库上搜索。
1、 新 建郑州至西安铁路客运专线根底工程沉降观测指导方案试行Zheng-Xi PDL Foundation Engineering Settlement Observation Directing SchemeProvision郑西铁路客运专线郑西铁路客运专线工程咨询工程部2006年11月西安目 录一、总 那么4二、主要依据的标准及标准5三、沉降变形监测网建立及测量技术要求5四、路基7一一般规定7二观测的内容8三观测断面和观测点的布置8四沉降观测的频度9五观测精度要求10六沉降观测要求10七评估方法和判定标准11五、桥梁13一一般规定13二沉降观测的内容14三沉降观测点的布置14四观测精度14五
2、沉降观测频度15六评估方法和判定标准17六、隧道18一一般规定18二沉降观测的内容19三沉降观测点的布置19四观测精度19五沉降观测频度19六评估方法及判定标准20七、过渡段21一 般 规 定21二观测点布置与观测频次21三观测精度21四沉降观测频度22五评估方法和判定标准22八、组织与管理22一 主要工作内容22二工作分工与职责22三工作程序24四工作要求26附件一：沉降观测记录手簿格式27附件二：沉降观测表格式31附件三：组合式沉降板路基沉降观测方法46附件四：路基沉降常用预测方法53郑西铁路客运专线根底工程沉降观测指导方案Zheng-Xi PDL Foundation Engineeri
3、ng Settlement Observation Directing Scheme一、 总 那么General 1、 为指导郑西铁路客运专线做好施工期间的沉降观测，通过对路基、桥梁及隧道工程的沉降观测资料进行分析，预测工后沉降，提出加速路基沉降的措施，确定无碴轨道的铺设时间，评估路基工后沉降控制效果，确保无碴轨道结构的平安，制定本指导方案。In order to direct Zheng-Xi PDL to do well settlement observation during construction, establish this directing scheme by analyz
4、ing settlement observation data of subgrades, bridges, and tunnels, forecasting settlement after construction, raising accelerating subgrade settlement measurement, confirming the time of paving slabtrack, evaluating the controlling effect of subgrade settlement after construction, making sure safet
5、y of slabtrack structure.2、 无碴轨道铺设条件评估的重点应是线下工程的变形，评估应综合考虑沿线路方向各种结构物间的变形关系，以标段为单位实施。设计单位按照本指导方案，以标段为单位制定沉降观测实施设计方案。Evaluation keypoints of slabtrack paving conditions should be deformation of underline construction. Evaluation should synthetically consider deformation relation among different struct
6、ures along alienment, implement by section. Contractors should establish settlement observation implement design scheme by section according to this scheme. 3、 根底工程的沉降观测数据必须采用先进、成熟、科学的检测手段取得，且必须真实可靠，全面反映工程实际状况。Settlement observation data of foundation engineering should be gotten by advanced, mature
7、d, scientific checking methods. The data which fully reflects the actual engineering must be true. 4、 本规定适用于施工期及正式验收通过前的沉降观测评估工作。This regulation applies to settlement observation evaluation during construction and before acceptance. 二、 主要依据的标准及标准The main references:1、 ?客运专线无碴轨道铺设条件评估技术指南?；Evaluation
8、 Technique Guide for Paving Conditions of PDL Slabtrack 2、 ?客运专线无碴轨道铁路工程测量技术暂行规定?；Provisional Regulation for PDL Slabtrack Railway Engineering Measure Technique3、 ?国家一、二等水准测量标准?GB1287991National First and Second Level Measure Regulations GB12879914、 ?工程测量标准?GB002693Engineering Measure RegulationsGB0
9、026935、 ?全球定位系统GPS铁路测量规程?GPS Railway Measure RegulationsTB1005497三、 沉降变形监测网建立及测量技术要求1、 沉降监测网的建立、精度要求等应符合?客运专线无碴轨道铁路工程测量技术暂行规定?的要求；The establishment and precision requirement of settlement monitoring net should accord with Provisional Regulation for PDL Slabtrack Railway Engineering Measure Technique
10、2、 沉降监测网应在施工高程控制网的根底上进行加密建立，按二等水准测量的精度和测量方法要求进行施测。Settlement monitoring net should be encrypted based on the construction height control net, and should implement measure according to measure precision and measure methods of second level.3、 高程基准网点间距不宜大于200m，以便于对沿线桥梁和路基等建筑物或构筑物进行沉降观测。The space betwee
11、n height datum net points should be within 200m in order to observe settlement of bridges, subgrades and other buildings along the line. 4、 变形测量点分为基准点、工作基点和变形观测点。其布设应符合以下要求：Deformation measure points are classified into datum marks, work basic points and deformation observation points. The layout of
12、 them should accord with the following requirements:（1） 每个独立的监测网应设置不少于3个稳固可靠的基准点，且基准点的间距不大于1公里。基准点应选设在变形影响范围以外便于长期保存的稳定位置。使用时应作稳定性检查与检验，并应以稳定或相对稳定的点作为测定变形的参考点。Each independent observation net should set no less than 3 steady datum marks, and the space between datum marks should be within 1km. The da
13、tum marks should be set out of deformation scope, which is easy to long term keep. When using, should check the stability, and make the stable or comparatively stable points as the referent points for measuring deformation.(2) 工作基点应选在比拟稳定的位置。对观测条件较好或观测工程较少的工程，可不设立工作基点，在基准点上直接测量变形观测点；Work basic point
14、s should be set at a stable place. For the engineering which has better observation conditions and less observation projects can directly measure deformation observation points at datum marks, without setting work basic points.(3) 变形观测点应设立在变形体上能反映变形特征的位置。Deformation observation points should be set
15、at a place which can reflect deformation characters.5、 每次观测前，对所使用的仪器和设备，应进行检验校正，并保存检验记录.Before observation, check and revise the instrument and facility, and save the checking record.6、 在沉降观测基准网建立后，应对水准基点做好保护工作，发现丢桩或桩位有移动现象，应尽快恢复和补测桩点。另外，应定期对沉降观测基准网进行复测，提出复测成果，复测周期不大于6个月。After establishing settlement observation norm net, should protect well level basic points. If find pier missing or moved, should recover and measure it as soon as
