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La Cabrera Tunnel
The La Cabrera Tunnel ( es, Túnel de La Cabrera), also known as the La Cabrera bridge-tunnel, is a tunnel and viaduct in Venezuela which lies within Carabobo State and connects it with Aragua State. It was built in the late 1950s using the New Austrian Tunnelling method. It was the first application by Ladislaus von Rabcewicz Ladislaus von Rabcewicz (June 12, 1893 in Kungota, nearby Maribor – December 19, 1975) was an Austrian engineer and university professor at the Vienna University of Technology. He is notable for being one of three men who developed the Ne ... of systematic rock bolt and shotcrete support in a highway tunnel. In July 2016, it was reported that the viaduct which leads to the tunnel was in danger of collapse and that multiple vehicles had fallen off due to a lack of guardrails combined with swerving to avoid potholes. References Tunnels in Venezuela Buildings and structures in Carabobo Buildings and structures in Aragua {{Venezuela-bri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Venezuela
Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in the Caribbean Sea. It has a territorial extension of , and its population was estimated at 29 million in 2022. The capital and largest urban agglomeration is the city of Caracas. The continental territory is bordered on the north by the Caribbean Sea and the Atlantic Ocean, on the west by Colombia, Brazil on the south, Trinidad and Tobago to the north-east and on the east by Guyana. The Venezuelan government maintains a claim against Guyana to Guayana Esequiba. Venezuela is a federal presidential republic consisting of 23 states, the Capital District and federal dependencies covering Venezuela's offshore islands. Venezuela is among the most urbanized countries in Latin America; the vast majority of Venezuelans live in the cities of the n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carabobo
, anthem = '' Himno del Estado Carabobo'' , image_map = Carabobo in Venezuela.svg , map_alt = , map_caption = Location within Venezuela , pushpin_map = , pushpin_map_alt = , pushpin_mapsize = , pushpin_map_caption = , coordinates = , coordinates_footnotes = , subdivision_type = Country , subdivision_name = Venezuela , subdivision_type1 = , subdivision_name1 = , subdivision_type2 = , subdivision_name2 = , established_title = Created , established_date = 1824 , founder = , named_for = , seat_type = Capital , seat = Valencia , government_footnotes = , government_type = , leader_party = , governing_body= Legislative Council , leader_title = Governor , leader_name = Rafael Lacava (2017) , area_ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aragua
Aragua State ( es, Estado Aragua, ) is one of the 23 States of Venezuela, states of Venezuela. It is located in the north-central region of Venezuela. It has plains and jungle (terrain), jungles and Caribbean beaches. The most popular are Cata and Choroni. It has Venezuela's first national park which is called Henri Pittier National Park, Henri Pittier. The capital is Maracay, other important cities include Turmero and El Limón, Venezuela, El Limón. Aragua State covers a total surface area of and, based on the 2011 census information, the estimated population of Aragua State in 2012 is 1,630,308 inhabitants. Etymology The name of the state comes from an indigenous word of Cumanagoto language, Cumanagoto (Caribbean) origin, which is used to refer to the Chaguaramo, a type of palm from the region [quotation required] However, according to Carlos Blanco Galeno, a chronicler from Turmero, it derives from the Cariban languages, Cariban aregua, and this de are ('site') and gua whic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Austrian Tunnelling Method
The New Austrian tunneling method (NATM), also known as the sequential excavation method (SEM) or sprayed concrete lining method (SCL), is a method of modern tunnel design and construction employing sophisticated monitoring to optimize various wall reinforcement techniques based on the type of rock encountered as tunneling progresses. This technique first gained attention in the 1960s based on the work of Ladislaus von Rabcewicz, Leopold Müller, and Franz Pacher between 1957 and 1965 in Austria. The name NATM was intended to distinguish it from earlier methods, with its economic advantage of employing inherent geological strength available in the surrounding rock mass to stabilize the tunnel wherever possible rather than reinforcing the entire tunnel. NATM/SEM is generally thought to have helped revolutionise the modern tunneling industry. Many modern tunnels have used this excavation technique. The works built by the Sequential Excavation Method are very attractive from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ladislaus Von Rabcewicz
Ladislaus von Rabcewicz (June 12, 1893 in Kungota, nearby Maribor – December 19, 1975) was an Austrian engineer and university professor at the Vienna University of Technology. He is notable for being one of three men who developed the New Austrian Tunneling method. He lived in Iran along with his family to build Veresk Bridge in Savadkooh, Mazandaran. Awards *Wilhelm Exner Medal The Wilhelm Exner Medal has been awarded by the Austrian Industry Association, (ÖGV), for excellence in research and science since 1921. The medal is dedicated to Wilhelm Exner (1840–1931), former president of the Association, who initialize ... in 1975.Editor, ÖGV. (2015). Wilhelm Exner Medal. Austrian Trade Association. ÖGV. Austria. References 1893 births 1975 deaths 20th-century Austrian people Austrian civil engineers Austrian untitled nobility Austrian people of Polish descent People from Maribor {{Austria-bio-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shotcrete
Shotcrete, gunite (), or sprayed concrete is concrete or mortar conveyed through a hose and pneumatically projected at high velocity onto a surface, as a construction technique, first used in 1907 invented by Carl Akeley. It is typically reinforced by conventional steel rods, steel mesh, or fibers. Shotcrete is usually an all-inclusive term for both the wet-mix and dry-mix versions invented by Akeley. In pool construction, however, ''shotcrete'' refers to wet mix and ''gunite'' to dry mix. In this context, these terms are not interchangeable. Shotcrete is placed and compacted/consolidated at the same time, due to the force with which it is ejected from the nozzle. It can be sprayed onto any type or shape of surface, including vertical or overhead areas. Shotcrete has the characteristics of high compressive strength, good durability, water tightness and frost resistance. History Shotcrete, then known as gunite, was invented in 1907 by American taxidermist Carl Akeley to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tunnels In Venezuela
A tunnel is an underground passageway, dug through surrounding soil, earth or rock, and enclosed except for the entrance and exit, commonly at each end. A pipeline is not a tunnel, though some recent tunnels have used immersed tube construction techniques rather than traditional tunnel boring methods. A tunnel may be for foot or vehicular road traffic, for rail traffic, or for a canal. The central portions of a rapid transit network are usually in the tunnel. Some tunnels are used as sewers or aqueducts to supply water for consumption or for hydroelectric stations. Utility tunnels are used for routing steam, chilled water, electrical power or telecommunication cables, as well as connecting buildings for convenient passage of people and equipment. Secret tunnels are built for military purposes, or by civilians for smuggling of weapons, contraband, or people. Special tunnels, such as wildlife crossings, are built to allow wildlife to cross human-made barriers safely. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
