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Construction of Groundwater Cultivation Model for Comprehensive Management of Groundwater in Coastal City Area

滨海城区地下水综合治理地下水培育模式构建

基本信息

批准号：
14350261
负责人：
MURAOKA Kohji
金额：
$ 9.54万
依托单位：
Osaka Sangyo University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2004
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14350261/
关键词：
Groundwater management Regional groundwater cultivation simulation 3D geological structure model Groundwater cultivation mechanism Groundwater environment Water balance Hydrological cycle Groundwater information Ground subsidence Liquefa

项目摘要

The research results of this research are as follows :1)The state of a hydrological cycle and utilization of groundwater in low land city Osaka was examined, and it is pointed out that the elucidation of the groundwater cultivation mechanism for the whole Osaka basin is indispensable to develop the groundwater management system that enables new utilization of groundwater.2)In order to develop the groundwater simulation model of the Osaka plain, it is necessary to prepare the 3-dimensional geological structure model of the Quaternary layers. The plans (stripping off topographical maps) showing the distribution depth of typical layers from the information on the Quaternary layers around the Osaka plain were made, and the 3-dimensional geological structure model was built based on it.3)The data format of groundwater information was unified, and the database on the Osaka plain was built to link to GIS (Geographic Information System).4)From the analysis based on the statistical simple model, the influence relations between rain/tide-level/pumping and groundwater level were clarified in the Osaka city region, and from the analysis of dissolved components of the groundwater in the shallow aquifers, the cultivation flow paths in the Osaka basin were clarified. They are used as the basic data for the comprehensive management of groundwater.5)In order to establish sustainable groundwater utilization system, holding the wholesome hydrological cycle, a comprehensive management of groundwater is an indispensable system. The groundwater cultivation model for the regional groundwater management in the Osaka plain (broader-based groundwater flow analysis system) was developed, and the applicability to the comprehensive groundwater management of the proposed model is clarified using the accumulated information.

本研究的结果如下：1）对低地城市大坂的水文循环和地下水利用状况进行了调查，指出为了开发能够实现地下水新利用的地下水管理系统，必须阐明整个大坂盆地的地下水培育机制。2）为了开发大坂平原的地下水模拟模型，必须制作第四纪地层的三维地质结构模型。这些计划（剥离地形图），从大坂平原周围的第四纪地层信息中提取出代表性地层的分布深度，并在此基础上建立三维地质构造模型。3）统一了地下水信息的数据格式，并建立了大坂平原数据库与GIS的连接（地理信息系统）。4）从基于统计简单模型的分析，明确了大坂市区降雨/潮位/抽水与地下水位之间的影响关系，通过对浅层地下水溶解成分的分析，明确了大坂盆地的栽培流程。5）为了建立地下水可持续利用系统，保持地下水的良性循环，地下水综合管理是一个不可缺少的系统。开发了大坂平原区域地下水管理的地下水栽培模型（更广泛的地下水流分析系统），并使用积累的信息阐明了所提出的模型对地下水综合管理的适用性。