Slope Stability Analysis and Stabilization-New Methods and Insight, YM Cheng




Preface

To cope with the rapid development of Hong Kong, many slopes have been

made for land development. Natural hillsides have been transformed into residential

and commercial areas and used for infrastructural development. Hong

Kong’s steeply hilly terrain, heavy rain and dense development make it prone

to risk from landslides. Hong Kong has a high rainfall, with an annual

average of 2300 mm, which falls mostly in the summer months between May

and September. The stability of man-made and natural slopes is of major concern

to the Government and the public. Hong Kong has a history of tragic landslides.

The landslides caused loss of life and a significant amount of property

damage. For the 50 years after 1947, more than 470 people died, mostly

as a result of failures associated with man-made cut slopes, fill slopes and

retaining walls. Even though the risk to the community has been greatly

reduced by concerted Government action since 1977, on average about 300

incidents affecting man-made slopes, walls and natural hillsides are reported

to the Government every year.

There are various research works associated with the theoretical as well

as practical aspects of slope stability in Hong Kong. This book is based on

the research work by the authors as well as some of the teaching materials

for the postgraduate course at Hong Kong Polytechnic University. The content

in this book is new and some readers may find the materials arguable.

A major part of the materials in this book is coded into the programs

SLOPE 2000 and SLOPE 3D. SLOPE 2000 is now mature and has been

used in many countries. The authors welcome any comment on the book or

the programs.

The central core of SLOPE 2000 and SLOPE3D was developed mainly by

Cheng while many research students helped in various works associated

with the research results and the programs. The authors would like to thank

Yip C.J., Wei W.B., Sandy Ng., Ling C.W., Li L. and Chen J. for help in

preparing parts of the works and the preparation of some of the figures in

this book.


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