Land Slide : A Key Problem in Uma Uya Project Risk Controlling
In this paper, using landslide risky zones best possible places to arrange the buildings and equipments were found in Uma Uya project. The risky zones of the project is achieved and presented. Uma Uma project is a multipurpose project. Uma Oya is a major tributary of Mahaweli Ganga originating from Nuwara Eliya. The Oya traverses Welimada and Kandaketiya in Badulla district. Its confluence with Mahaweli Ganga is just above the Rantabe reservoir. Landslides are aggravated by human activities. Activities include deforestation, cultivation and construction. Main causes can be vibrations from machinery, blasting, earthwork which alters the shape of a slope, removal of deep rooted vegetation and construction. As it can be seen from results the main risky zones are located at high levels of the site. It is clear from results that about %30 of the site zones are involved in high risky landslide. While, about %50 of zones are low risky zones and about %20 of zones are no risky zones. Thus, site mobilization in such zones is dangerous.
Landslide Morphology and Processes on Santa Cruz Island, California
An episode of unusually intense rainfall triggered over a thousand landslides on Santa Cruz Island, California, during the winter of 1977-78. These included large, deep-seated failures, composite mudflows, and hundreds of shallow soil slips. In this study, landslide occurrence is examined in relation to lithologic, pedologic, topographic, and vegetational conditions. Their effects on soil permeability, water movement patterns, and shear strength are found to be related to landslide morphology and process.
Time and Heritage
As a historian studying what can be considered a form of intellectual history, I have slowly come to adopt Michel de Certeau’s observation made at the end of the 1980s that ‘objectifying the past, for the last three centuries, has undoubtedly left unconsidered time within a discipline that has continued to use it as a taxonomic instrument’. To a certain degree, time has become commonplace for the historian who has preserved or instrumentalized it. It is not considered because it is inconceivable, but because we do not think of it or, more simply, we do not think about it. As a historian attempting to pay attention to the time I’m living in, I have thus, like many others, noticed the swift development of the category of the present until it has become obvious that the present is omnipresent. This is what I refer to here as ‘presentism’.