Our group is capable of providing design solutions to Landslide Remedies, Foundation improvement & Rehabilitation issues.
Landslide is movement process which may be translational or rotational mass move over a stable subsoil. Movements are occurring along clear (defined failure plane), and sometimes unclear (complex failure due to joint effects) slip surface. Mass moving down the slope can be slow or can be very quickly and devastating depending upon numerous triggering factors.
Types of landslides
Landslides are very diverse phenomena in shape and size, movement speed and other characteristics. According to geological structural feature in which landslides occur, we can distinguish instability in soil and rock mass.
In soil/highly disintegrated rock mass we distinguish the following types of instability:
Landslide causes
There are two categories of landslide causes: natural and human causes. Sometimes landslide occurs in combination of both.
Mitigation techniques
Mitigation techniques used to continue stabilizing, controlling and preventing landslides are:
Hydrogeological Methods
(a) Control of Surface drainage
Mechanical Methods
Protection against Rockfalls
Reduce driving forces
Chemical Methods
Using various methods of grouting techniques. Use of grout technique depends upon type of problem encountered like seepage problem having cracks in joints or silt-clay strata permeation grouting, other type of grouting like jet grouting can be used depending upon type of problem.
Foundation remediation and rehabilitation
If requested by the client for foundation remediation purpose, containing at least the following:
Investigation
Evaluation and Methodology
A rational method should be used to establish causes of distress or diminished performance, if any. A suggested method is summarized as follows: