Abstract

During the design and construction of slope protection,retaining walls,anchorage bars and anti-slide piles are the most commonly used techniques.Slope stabilization by vegetation bio-engineering methods is still considered as the routine activities of landscape engineering.People plant on slope just for greening purpose.However,if some special plants with strong and long root system such as vetiver grass etc.are adopted for slope stabilization and in combination with some necessary geotechnical structures,the environmental and economic advantages will play a more and more important role in both engineering and gardening practice.

In this book,a new slope protection mechanism by vegetation bio-engineering stabilization technique is proposed,i.e.,progressive deformation and decomposition control,to actively prevent other than passively protect.The mechanism of vegetation bio-engineering stabilization of slopes,various vegetated protection techniques and design principles are introduced,simple soil mechanic model for vegetated soil and analytical solutions for vegetated slopes are proposed.Simply generalized consolidation theory for unsaturated soil and progressive deformation analysis method for slopes are implemented in a general finite element method.Soil deformation caused by rainfall,creep,anisotropic fabric change and artificial disturbance in the slope with/without vegetation are analyzed.Practical vegetation bio-engineering stabilization measures are suggested for design.

This book is sponsored by publishing fund of Nanjing Hydraulic Research Institute(NHRI).Research on vegetation bioengineering stabilization of slope is sponsored by Natural Science Foundation of China(NSFC).