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中铁二十局集团有限公司青荣城际铁路工程QRZH-IV标 隧道监控量测实施方案
目 录
一．编制依据 ································································ 1 二．编制原则 ································································ 1
1．高效、适用原则 ······································································· 1 2．安全原则 ···················································································· 1 3．符合本单位技术水平的原则 ··················································· 2 三．适用范围 ································································ 2 四．工程概况 ································································ 2
1．隧道概况 ···················································································· 2 2．施工存在的风险 ······································································· 2 3．监控量测目的 ············································································ 2 4．监控量测手段 ············································································ 3 五．监控量测实施方案 ···················································· 4
1．组织机构、人员及设备 ··························································· 4 2．监控量测程序和项目 ······························································· 5 3．监控量测点布置及方法 ··························································· 6 4．监测数据的统计分析与信息反馈 ········································ 10 六．无尺渐测现场应用 ··················································· 11 七．监控量测工作制度 ·················································· 12 八 附件 ····································································· 11
表A开挖工作面地质状况记录表 ·············································· 11 表B 隧道净空变化量测记录表 ·················································· 13
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中铁二十局集团有限公司青荣城际铁路工程QRZH-IV标 隧道监控量测实施方案
表C拱顶下沉量记录表 ······························································· 14 表C地表沉降观测原始记录表 ·················································· 15
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中铁二十局集团有限公司青荣城际铁路工程QRZH-IV标 隧道监控量测实施方案
一．编制依据
1．青荣城际铁路招标文件及新建青岛至荣城铁路工程施工图； 2．青荣城际铁路Ⅳ标段指导性施工组织设计； 3．铁道部颁发的规范、规程、标准：
（1）《铁路隧道工程施工技术指南》（TZ204-2008）； （2）《国家一、二等水准测量规范》（GB12897—2006）； （3）《高速铁路工程测量规范》（TB10601-2009）； （4）《工程测量规范》（GB50026-2007）；
（4）《铁路工程设计防火规范》（TB10063-2007 J774-2008）； （5）《铁路隧道超前地质预报技术指南》（铁建设[2008]105号）。 4．青荣城际铁路建设指挥部有关要求。
二．编制原则
1．高效、适用原则
监控量测是新奥法施工中不可缺少的一项技术内容，是监视围岩和支护稳定性的重要手段，是判断设计、施工是否正确合理的主要依据，是监视施工是否安全可靠的眼睛。为了更精确更迅速的了解围岩的动态变化，判定其稳定性，从而保证施工安全。
本方案的高效运行，能确保预报质量并有效的指导施工，适合本工程所有隧道。
2．安全原则
隧道施工中开挖形成后，必须立即喷射不小于4cm厚的混凝土及时封闭围岩作为初支初喷层，紧跟监控量测，监控量测应在开挖后2-4小时
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中铁二十局集团有限公司青荣城际铁路工程QRZH-IV标 隧道监控量测实施方案
进行，否则工作人员不得进入掌子面作业。
本方案的操作实施要安全，并能指导安全施工。 3．符合本单位技术水平的原则
本方案拟投入的设备、实施人员均符合本单位现有水平，能确保方案顺利实施。
三．适用范围
适用于青荣城际铁路Ⅳ标段隧道监控量测。
四．工程概况
1．隧道概况
本标段共有隧道10座，总长度11.017Km。隧道全部位于山东省烟台市境内，地貌形态为剥蚀丘陵，地形高低起伏，部分地段冲沟发育，基岩大部分裸露。隧道穿越的地层岩性多为片岩、花岗岩、变质岩等，岩性变化较大。隧道概况表见下页。
2．施工存在的风险
根据设计图纸提供的地质资料，不难发现，本标段隧道施工中存在坍塌、冒顶、突水、突泥等风险。
3．监控量测目的
（1）通过监控量测了解各施工阶段地层与支护结构的动态变化，把握施工过程中结构所处的安全状态，判断围岩稳定性，支护、衬砌可靠性。
（2）用现场实测的结果弥补理论分析过程中存在的不足，并把监测结果反馈设计、指导施工，为修改施工方法、调整围岩级别、变更支护设计参数提供依据。
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