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Studies on the Application of Geotomography to Effective Use of Underground Space

地层摄影技术在地下空间有效利用中的应用研究

基本信息

批准号：
01850143
负责人：
SASSA Koichi
金额：
$ 4.42万
依托单位：
Kyoto University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research (B).
财政年份：
1989
资助国家：
日本
起止时间：
1989 至 1990
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-01850143/
关键词：
Geotomography Underground Space Seismic Tomography Resistivity Tomography Inversion 立体電極配列物理探査

项目摘要

The purpose of the present study is the application of geotomography to the effective utilization of underground space.The specific problems in geotomography are derived from the refraction and diffraction phenomena of elastic waves and the spatial restriction of the arrangement of source and receiver. The studies for resolving these problems and the evaluation of the analytical errors were carried out. As for the velocity tomography in the elastic wave tomography, the following considerations were performed during the two years.1. Establishment of the non-linear analysis system.2. Discussion on the resolving limitation for the dipping layer.3. Improvement in the accuracy by the rotation of coordinate system.4. Evaluation of the reconstruction result using the Akaike's Information Criteria.5. Development of the analysis technique by use of multiple ray path for a certain pair of source receiver.6. Data acquisition in the field and application of the analysis system to the field data.In addition, the analysis system for the attenuation tomography using the amplitudes of first arrival waves were developed and applied to the field data.As for the resistivity tomography, the following considerations were carried out.1. Examination of solid array suitable for the resistivity tomography which observes effectively the response from prospective target.2. Development of the reasonable technique for generating the initial values in the reconstruction stage.

本研究的目的是将地层析成像技术应用于地下空间的有效利用。由于弹性波的折射和衍射现象，以及源、接收机排列的空间限制，导致了地质层析成像中的具体问题。为解决这些问题进行了研究，并对分析误差进行了评价。对于弹性波层析成像中的速度层析，两年来进行了以下考虑：非线性分析系统的建立2 .关于浸层解析限制的讨论。3 .通过坐标系的旋转提高精度。用赤池信息准则评价重建结果。某对源接收机多射线路径分析技术的发展。现场数据采集及现场数据分析系统的应用。此外，开发了基于首到波振幅的衰减层析成像分析系统，并将其应用于现场数据。对于电阻率层析成像，进行了以下考虑。适用于电阻率层析成像的固体阵列的检验，它能有效地观察远景目标的响应。开发在重建阶段生成初始值的合理技术。