Determination of hydraulic conductivity of fractured rock masses : a case study for a rock cavern project in Singapore

• Main Authors: Zhao, Zhiye, Sun, Jianping, Lu, Ming, Xu, Zhipeng
• Other Authors: School of Civil and Environmental Engineering
• Format: Article
• Language: English
• Published: 2015
• Subjects: DRNTU::Science::Geology
• Online Access: https://hdl.handle.net/10356/107266; http://hdl.handle.net/10220/25571; http://dx.doi.org/10.1016/j.jrmge.2014.10.006
• Institution: Nanyang Technological University

In order to reduce the risk associated with water seepage in an underground rock cavern project in Singapore, a reliable hydro-geological model should be established based on the in situ investigation data. The key challenging issue in the hydro-geological model building is how to integrate limited geological and hydro-geological data to determine the hydraulic conductivity of the fractured rock masses. Based on the data obtained from different stages (feasibility investigation stage, construction stage, and post-construction stage), suitable models and methods are proposed to determine the hydraulic conductivities at different locations and depths, which will be used at other locations in the future.