The landslide occurred on March 30, 2011. The maximum rainfall (53.1 kg/m2) has been seen in this month during a year. There is igneous rock that composed of tuff, andesite, dasite and basalt on the top of metamorphic schist, graphitic schist and serpentine. There are also basalt and limestone blocks. These blocks were split by fault and moved. The landslide body is consisting of schist and completely ripped dacide and andesite blocks. The basement is saturated serpentine which is very weak competent. There is clay zone inside these serpentines. These clay zones are turned into graphitic schist that is splitting surface of the landslide body. The reconstruction of highway was made according to Geophysical investigation result.
Case study - South Pool Creek, Devon
Part of the works to repair an essentials road recently damaged by a landslide required hydroseeding to it`s slopes and to help retain the soil an erosion control blanket was fitted by the client prior to seeding. Additional tackifier was added to the mix to help bind the sprayed on material to the steep slopes until germination and the establishment of the new grasses.Project Size: 1,000m2Location: South Pool, DorsetClient: South Hams CouncilCompletion: March 2011
Needs and vulnerability assessment (NAVA) indicators for specific hazards in the context of Sri ...
Development of a four hazard-specific toolkit (drought, flood, landslide and chronic kidney diseases of unknown aetiology) for needs and vulnerability assessment in the water, sanitation and hygiene (WASH) sector included community consultations with district, divisional and community stakeholders in four selected districts of Sri Lanka, which are highly prone to the respective hazards. Existing global WASH tools such as sphere and global WASH cluster indicators are contextualized, and the toolkit covers three...
The SESAMO early warning system for rainfall-triggered landslides
The development of Web-based information systems coupled with advanced monitoring systems could prove to be extremely useful in landslide risk management and mitigation. A new frontier in the field of rainfall-triggered landslides (RTLs) lies in the real-time modelling of the relationship between rainfall and slope stability; this requires an intensive monitoring of some key parameters that could be achieved through the use of modern and often low-cost technologies. This work describes an integrated information...
Characterization of dynamic evolution of the spatio-temporal variation of rain-field in Hong Kong
A significant part of Hong Kong has hilly terrain with relatively short flow concentration time and, hence, is susceptible to the threat of flash floods and landslides during intense convective thunderstorms and tropical cyclones. For places like Hong Kong, a rainfall model that could adequately capture small-scale temporal and spatial variations would be highly desirable. The main challenge in rain-field modeling is to capture and describe the dynamic time-space evolution of the rainfall during rainstorm events....
Can nature help reduce the impacts of climate change?
Building and managing a well-planned network of natural areas might provide an effective and, in many cases, cheaper solution for coping with natural disasters such as floods or landslides. A new report published today by the European Environment Agency (EEA) explores how ‘green infrastructure’ can help Europe prepare for and reduce the loss from weather- and climate-related hazards. Weather- and climate-related hazards, including extreme precipitation, floods, wet mass movement (e.g. avalanches and...