摘要
构建一种“地质大数据+X”的应用模式,推动智慧城市建设向低碳、集约方向发展。应用结果表明:基于“地质大数据+BIM”应用模式,实现城市地下溶洞的分布位置及规模可视化,辅助重大工程规划决策分析,在施工过程中有效规避地下管线,减少施工对地下管线的破坏;2013—2016年南宁市万象城地铁站最大平均沉降速率为10.89 mm·a^(-1),累积形变量-31.4 mm,通过“地质大数据+InSAR”应用模式探明地面发生沉降的主要原因为地铁基坑开挖导致的地面承载力下降;通过对地质大数据的插值分析,获取了地铁1号线缓冲500 m范围内圆砾层的厚度等值线图,其中清川站及广西大学站区间圆砾层厚度大于10 m,长期的地下水侵蚀及压力渗透作用将会影响地铁隧道的使用寿命,应进一步加强地铁隧道防渗监测。
This paper aims at constructing an application model of"geological big data+X"to promote the low-carbon and intensive development of smart city construction.Application results show that:the application mode of"geological big data+BIM"can help realize the visualization of the distribution locations and scales of underground karst caves,assist the decision analysis of major project planning,avoid collision between construction and pipeline,and reduce the construction damage to underground pipelines.The maximum average settlement rate of Wanxiangcheng Subway Station in Nanning was 10.89 mm·a^(-1) from 2013 to 2016,with a cumulative deformation of-31.4 mm.Through the application of"geological big data+InSAR"model,it is found that the main reason for settlement is the decrease of ground bearing capacity caused by subway foundation pit excavation.The contour map of the round gravel layer thickness in the buffer radius of subway line 1 within 500 m is obtained by interpolation analysis of the geological big data.The thickness of the round gravel layer is more than 10 m between Qingchuan Station and Guangxi University Station.Long-term erosion by groundwater and pressure infiltration may affect the service life of the subway tunnel,necessitating enhanced monitoring of tunnel seepage.
作者
文诗宝
许国
卢鹏
黄梅婷
冯健
赵勇
WEN Shibao;XU Guo;LU Peng;HUANG Meiting;FENG Jian;ZHAO Yong(Nanning Survey and Design Institute Group Co.,Ltd.,Nanning 530022,Guangxi,China;Nanning Shallow Geology Big Data Engineering Technology Research Center,Nanning 530022,Guangxi,China)
出处
《城市地质》
2024年第2期250-258,共9页
Urban Geology
基金
南宁市科学研究与技术开发计划项目(ZC20211003)
南宁市创新创业领军人才“邕江计划”资助项目(2020016)
南宁市优秀青年科技创新创业人才培育项目(RC20220201)联合资助。
关键词
地质大数据
智慧城市
可视化平台
地下空间开发
geological big data
smart city
visualization platform
underground space development
作者简介
第一作者:文诗宝(1995-),女,硕士,工程师,主要从事地质大数据研究工作。E-mail:643585407@qq.com;通信作者:许国(1973-),男,硕士,正高级工程师,主要从事岩土工程工作。E-mail:516046247@qq.com。
