日本地球惑星科学連合2019年大会

講演情報

[E] ポスター発表

セッション記号 M (領域外・複数領域) » M-GI 地球科学一般・情報地球科学

[M-GI29] Near Surface Investigation and Modeling for Groundwater Resources Assessment and Conservation

2019年5月28日(火) 15:30 〜 17:00 ポスター会場 (幕張メッセ国際展示場 8ホール)

コンビーナ:Jui-Pin Tsai(National Cheng Kung University, Taiwan)、Hwa-Lung Yu(National Taiwan University)、Ching-Chung Cheng(National Chiao Tung University Taiwan)、Jing-Sen Cai(China University of Geosciences)

[MGI29-P05] Application of TL-CHERT Smart Characterization Method to Investigate a Groundwater Contaminated Site

*Tzu-Pin Wang1,2,5Yao-Tsung Chen3Tien-Hsing Tung3Chih-Hung Cheng2Jie Wang4 (1.NCU TW、2.Geophysical Technology and Engineering Co.,Ltd. R.O.C、3.Apollo Technology Co.,Ltd. R.O.C.、4.Department of Civil Engineering, Chien Hsin University of Science and Technology, Taoyuan City, Taiwan、5.Disaster Reduction Research Center, Chien Hsin University of Science and Technology, Taoyuan City, Taiwan)

キーワード:CHERT, groundwater, pollution, resistiviy, geophysics, SCM

The Environmental Protection Administration in Taiwan effectively integrates Cross-Hole Electrical Resistivity Tomography (CHERT) into remediation planning in the anticipatory improvement project of sites with no polluter. During the reagent injection, Time-lapse Cross-Hole Electrical Resistivity (TL-CHERT) data are collected continuously. After data preprocessing and inversion algorithm, the ERT results are presented in images. 4D images could depict the main transmission range of reagent during the reagent injection, and further adjust or revise the second stage of remediation design. Therefore, CHERT could not only improve the remediation of complex groundwater contaminated sites, but also achieve the goal of precise surgical remediation. Besides, setting geophysical exploration equipment together with monitoring wells could greatly increase the use efficiency of the wells. Because groundwater contamination is usually a severe problem, a cross-professional cooperation is necessary. It is expected that this study will provide a worth case study for the survey application of similar contaminated site.