摘要
阐述了天津滨海新区基本地质条件及工程地质特征,分析了对新近系明华镇组以上地层进行全面系统监测的必要性。介绍了滨海新区分层标监测系统建设的工作方法,简述分层标监测系统建设中各种类型分层标的设置及标孔结构设计。在总结前人分层标建设的基础上,结合多年设计施工及监测工作经验,对分层标的标孔结构、标底及孔隙水压力监测孔做了技术研究改进,并与传统的分层标工艺进行了分析比较。工程验证结果表明,各项技术改进应用效果良好,达到预期设计目标。
This article elaborates the basic geological conditions and engineering geological characteristics in the Binhai New Area of Tianjin,and analyses the necessity of conducting a comprehensive system monitoring the layers above the Neogene Minghuazhen Group.In this paper,the working methods of the construction of monitoring system for the layerwise mark in the Binhai New Area are introduced.The setup and structural design of various types of layer monitoring wells with extensometers are outlined in construction of the monitoring system for the layerwise mark.Based on previous work on construction of layer monitoring wells with extensometers and combining with several years＇ experience in the design-construction and monitoring work,the structure of the layerwise mark,bottom structure of layerwise mark and monitoring holes for pore water pressure are technologically improved,which are compared with traditional crafts of layer monitoring wells with extensometers.Based on engineering verification,the technical improvements yield good results,and hence the desired goal has been reached.
出处
《水文地质工程地质》
CAS
CSCD
北大核心
2011年第6期44-48,共5页
Hydrogeology & Engineering Geology
关键词
层标
结构设计
标底
技术改进
layerwise mark
structural design
bottom structure of layerwise mark
technological improvement
