摘要: |
Landslides along hilly and mountainous roads in India have vastly increased in numbers, spread and severity since the mid-twentieth century. Landslide hazards along many roads have aggravated to such an extent as to pose unacceptable threats to road access, safety and environment. This calls for taking a new look at landslides along roads and finding effective solutions, taking help of the state-of-the-art of landslide control. Effective landslide control requires a combination of geological and geotechnical investigations, instrumented monitoring and observational approach to inter-relating design, construction and performance. The requisite capability has largely been lacking with road agencies in India, who still remain responsible for landslide control and must equip themselves accordingly. This requires a combination of policy initiatives, institutional capacity building and financing, which are looked into and relevant suggestions made, along with a brief review of landslide causation, characteristics and control aspects. |