supported by the National Natural Science Foundation of China(Grant No.41772276);the Key R&D project of Zhejiang Province(Grant No.2017C03006);the Zhejiang University and the Norwegian Geotechnical Institute for funding his research stay at NGI。
Groundwater lowering is one of the most important countermeasures to avoid the risk of rainfall-triggered landslides.However,the long-term reliability of many drainage methods is often a matter of concern since the dr...