河北省1:50000沙流河幅第四系钻孔数据库

Quaternary borehole database for 1:50000 Shaliu River Map-sheet of Hebei Province, China

河北省1:50000沙流河幅是京津冀平原地区地质调查的重点图幅之一,晚新生代地层是图幅的主要调查对象,第四系钻孔数据库是地质调查核心成果的体现。本次工作利用钻孔施工和测试成果数据,结合收集的钻孔资料,建立了第四系钻孔数据库,主要包括1个钻孔基本信息图层、5个钻孔编录数据库、5个钻孔设计数据库及5张钻孔柱状图。本文从数据来源、数据处理方法、数据属性结构及数据质量控制等方面进行了归纳总结,以呈现基于数字地质调查系统的第四系钻孔数据库成果和建库实例。本数据库为唐山地区城市三维地质模型的建立提供了基础数据,服务于京津冀协同发展,同时也为平原区地质调查中钻孔数据的处理及建库提供了参考。

The 1:50000 Shaliu River Map-sheet of Hebei Province is one of the key mapsheets for geological surveys of Beijing-Tianjin-Hebei plain Region,and the Late Cenozoic in the mapping area was mainly surveyed,with Quaternary borehole database reflecting the core achievement of the geological survey.By taking advantage of borehole construction and test data,as well as combining the collected borehole data,Quaternary borehole database was thus built,which mainly includes one basic data layers for borehole,five borehole catalog databases,five borehole design databases and five borehole histograms.Data source,data processing method,data attribute structure and data quality control are summarized in this paper,so as to present the practice of Quaternary borehole databases on the basis of Digital Geological Survey System(DGSS).The database provides a 3 D geologic model of Tangshan urban area with basic data,serving coordinated development of Beijing-Tianjin-Hebei Region,which could also be referenced by borehole data processing and database construction in the geological survey of the other plain areas.