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A rockfall protection embankment is an earthwork built in elevation with respect to the ground to intercept falling rock fragments before elements at risk such as roads and buildings are reached. This term is widely used in the rockfall community but the terms bunds and walls are sometimes used as alternatives.
The rockfall still takes place but an attempt is made to control the outcome. In contrast, active mitigation is carried out in the initiation zone and prevents the rockfall event from ever occurring. Some examples of these measures are rock bolting , slope retention systems, shotcrete , etc.
Talus cones produced by mass moving, north shore of Isfjord, Svalbard, Norway Mass wasting at Palo Duro Canyon, West Texas (2002) A rockfall in Grand Canyon National Park. Mass wasting, also known as mass movement, [1] is a general term for the movement of rock or soil down slopes under the force of gravity.
Some landslides are complex in the sense that they feature different movement types in different portions of the moving body, or they evolve from one movement type to another over time. For example, a landslide can initiate as a rock fall or topple and then, as the blocks disintegrate upon the impact, transform into a debris slide or flow.
The Philippines raised the alert level at the popular Mayon volcano by a notch on Thursday, after detecting volcanic earthquakes and hundreds of rockfall events. At "alert level 3" on a scale of 5 ...
Maria Cristina Falls is a waterfall of the Agus River in the Northern Mindanao region of the Philippines. It is sometimes called the "twin falls" as the flow is separated by a rock at the brink of the waterfall. [1] The name come from the Spanish queen, Maria Christina of Austria.
The National Disaster Risk Reduction and Management Council (NDRRMC), formerly known as the National Disaster Coordinating Council (NDCC) until August 2011, is a working group of various government, non-government, civil sector and private sector organizations of the Government of the Republic of the Philippines established on June 11, 1978 by Presidential Decree 1566. [1]
The first important legislation that formed the basis of the current system of national parks and protected areas in the Philippines is Act No. 648, enacted in 1903 by the Philippine Commission. This act authorized the civil governor to "reserve for civil public purposes, and from sale or settlement, any part of the public domain not ...