Some issues to be studied in the construction of high earth and rockfill dams
Kong Li-li · Journal of China Institute of Water Resources and Hydropower Research · 2006
Soil mechanics has been advancing with the development of earth and rockfill dams construction.Study on static and dynamic properties of soil and rock materials,theories and methods of strain-stress analysis and earthquake dynamics,and safety evaluation of earth and rockfill dams are important components of geotechnics.This paper summarizes some advancement obtained recently and indicates the developing trend in future for high earth and rockfill dams construction.A few basic issues to be studied in this field are put forward,including: 1)study on engineering mechanical properties of deep and thick overburden layers of dam foundation;2)investigation on simulation methods for determination of engineering mechanical properties of coarse grain material of dam body;3)research on characteristics of deformation and strength of soil geotechnics under complicated and high stress condition;4)investigation of characteristics of long-term deformation of rock materials;5)development of numerical methods for simulating interaction between overburden layers and superstructure;6)research on comprehensive methods and criteria for safety evaluation of high earth and rockfill dams;7) development of treatment technique of deep-thick overburden layers for anti-seepage;8) research on seismic problems of high earth and rockfill dams in strong earthquake areas.