Lab and field monitoring data at the pilot project at Gijster (SoSEAL research project)

The SoSEAL research project aims to develop a nature-inspired geo-engineering solution for reducing soil permeability in-situ. This technique uses aluminium-organic matter flocs to block pore spaces in soils as the mechanism to reduce the permeability. In order to understand to what extent aluminium-organic matter flocs can reduce soil permeability in-situ and can be controlled, a full-scale pilot experiment was carried out using this technique to install a 70m long flow barrier at the dike that surrounds a water reservoir in de Biesbosch, the Netherlands. The construction of the flow barrier was divided into zone A and B, where monitoring wells were installed in all zones. CTD divers were placed in the monitoring wells to measure hydraulic head, temperature and electrical conductivity regularly. In addition, groundwater sampling and chemistry analysis were performed in a regular basis.The well set-up can be found from the dataset. This dataset contains field moniotring data collected in the time period from 2017-04-15 until 2019-07-31, where the field injection took place in June 2018. Data include: 1) the change in hydraulic heads in monitoring wells over time; 2) the groundwater chemistry analysis with sample took from the monitoring wells; 3) the field pumping/infiltration test performed before and after the injection. In addition to the field data, lab column tests results are included in the dataset.Type of date: 1) raw data came out the CTD divers in spreadsheet format; 2) information of the field pumping/infiltration test; 3) results of the groundwater chemistry analysis and 4) lab column experiment results.

SoSEAL研究项目旨在开发一种受自然启发的地质工程解决方案，用于原位降低土壤渗透性。该技术以铝-有机质絮凝体（aluminium-organic matter flocs）堵塞土壤孔隙作为核心机制，实现土壤渗透性的降低。为明确铝-有机质絮凝体在原位土壤渗透性降低方面的实际效果与可控性，研究团队依托该技术开展了全尺寸现场中试试验，在荷兰德比兹博斯（de Biesbosch）某水库周边堤坝处搭建了一道长70米的阻渗屏障。该阻渗屏障的施工分为A、B两个区域，所有区域均布设了监测井。监测井内安装了CTD探头（CTD divers），用于定期采集水头、温度与电导率数据。此外，研究团队还定期开展地下水采样与化学分析工作。本试验的井位布设方案可从本数据集中获取。本数据集涵盖2017年4月15日至2019年7月31日期间采集的全部现场监测数据，其中现场注入作业于2018年6月开展。数据集包含以下内容：1）监测井内水头随时间的变化数据；2）从监测井采集的地下水化学分析结果；3）注入前后开展的现场抽水/入渗试验结果。除现场实测数据外，本数据集还收录了室内土柱试验的相关结果。数据集涵盖的数据类型具体包括：1）以电子表格格式存储的CTD探头原始数据；2）现场抽水/入渗试验的相关信息；3）地下水化学分析结果；4）室内土柱试验的完整结果。