题目：Depth-Discrete Multilevel Monitoring in
Fractured Rock: State of the Technology and Implications
时间：2018年11月19日下午3:30-5:10
地点：电子楼106
邀请人：王金生教授
主讲人：John Cherry (speaker)
讲座内容简介：
Well established engineered systems for
depth-discrete monitoring in fractured rock boreholes (Multilevel Monitoring
Systems-MLSs) are commercially available and offer much diversity in design
options. They are used in diverse types of applications between depths of 10 to
1000 m below ground surface. However, they are used only minimally in
professional practice and are seldom used use in groundwater research. MLSs
provide information about groundwater pressure and hydro-chemistry from many
different depth levels in each borehole and therefore they magnify greatly the
knowledge value of each borehole. Conventional practice globally is devoted to
standard monitoring wells alone or in clusters or in nests and remain the
mainstay of the groundwater science and engineering community. This severely
limits prospects for each borehole to provide the information needed to solve
the typically complex problems posed by fractured rock. This talk outlines the
nature and evolution of MLS technologies and shows how MLSs add important
insights not accessible using conventional wells. Also it proposes why MLS
technologies are so little used and suggests a path forward for advanced MLS
designs to make MLSs more useful and accessible for high resolution data
acquisition for groundwater system characterization and monitoring for research
and practise and also to serve in groundwater education.
主讲人简介：
John A. Cherry, PhD, P.Eng., FRSC，holds geological engineering degrees from the University of
Saskatchewan and the university of California, Berkeley and a PhD in geology
from the University of Illinois. He currently is an Adjunct Professor at the
University of Guelph, Canada, where he is Director, University Consortium for
Field Focused Groundwater Research and Associate Director, G360 Institute for
Groundwater Research, the largest university-based groundwater research
institute in Canada. He holds the title of Distinguished Emeritus Professor,
University of Waterloo, Canada, where he was based,1971-2006, and is an
Honorary Professor, University of Hong Kong. He has received many awards and
honours from scientific and professional organizations in Canada, USA and UK.