|
Lake Homs Dam
__NOTOC__ The Lake Homs Dam, also known as Qattinah Dam, is a Roman-built dam near the city of Homs, Syria, which is in use to this day. History Contrary to an older hypothesis which tentatively linked the origins of the dam to Egyptian ruler Sethi (1319–1304 BC), the structure dates to 284 AD when it was built by the Roman emperor Diocletian (284–305 AD) for irrigation purposes. With a capacity of 90 million m³, it is considered the largest Roman reservoir in the Near East and may have even been the largest artificial reservoir constructed up to that time. Remarkably, the reservoir has suffered very little silting since. The 2 km long and 7 m high masonry gravity dam consists of a Roman concrete core protected by basalt blocks. The slightly pointed curvature of the dam follows the course of a long ridge of basalt and thus bears only superficial resemblance to an arch dam. In 1938, the level of the dam was raised, increasing the volume of the artificial lake to 200 mill ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Homs
Lake Homs ( ar, بحيرة حمص) (also called Lake Qattinah, ar, بحيرة قطينة) is a lake near Homs, Syria, fed by the Orontes River. The lake is from the city of Homs, and spans over . The lake is artificial, created by the Lake Homs Dam at its northern end. The dam's original structure was one of the most visible works of ancient engineering in Syria and in the Fertile Crescent. Built by the ancient Romans, the dam had created a reservoir whose water was conducted to nearby fields through a network of canals.Dumper, 2007, p.171. References Bibliography * {{Citation, title=Cities of the Middle East and North Africa: A Historical Encyclopedia, first1=Michael, last1=Dumper, first2=Bruce E., last2=Stanley, first3=Janet L., last3=Abu-Lughod, publisher=ABC-CLIO, year=2007, isbn=978-1-57607-919-5 Homs ar, حمصي, Himsi , population_urban = , population_density_urban_km2 = , population_density_urban_sq_mi = , population_blank1_title ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arch Dam
An arch dam is a concrete dam that is curved upstream in plan. The arch dam is designed so that the force of the water against it, known as hydrostatic pressure, presses against the arch, causing the arch to straighten slightly and strengthening the structure as it pushes into its foundation or abutments. An arch dam is most suitable for narrow canyons or gorges with steep walls of stable rock to support the structure and stresses. Since they are thinner than any other dam type, they require much less construction material, making them economical and practical in remote areas. Classification In general, arch dams are classified based on the ratio of the base thickness to the structural height (b/h) as: * Thin, for b/h less than 0.2, * Medium-thick, for b/h between 0.2 and 0.3, and * Thick, for b/h ratio over 0.3. Arch dams classified with respect to their structural height are: * Low dams up to , * Medium high dams between , * High dams over . History The developme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancient Roman Dams
The ancient Romans were famous for their advanced engineering accomplishments. Technology for bringing running water into cities was developed in the east, but transformed by the Romans into a technology inconceivable in Greece. The architecture used in Rome was strongly influenced by Greek and Etruscan sources. Roads Roads were common at that time, but the Romans improved their design and perfected the construction to the extent that many of their roads are still in use today. Their accomplishments surpassed most other civilizations of their time, and after their time, and many of their structures have withstood the test of time to inspire others, especially during the Renaissance. Moreover, their contributions were described in some detail by authors such as Pliny the Elder, so there is a printed record of their many inventions and achievements. Aqueducts A thousand cubic metres (260,000 US gal) of water were brought into Rome by eleven different aqueducts each day. Per c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dams In Syria
A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aquaculture, and navigability. Hydropower is often used in conjunction with dams to generate electricity. A dam can also be used to collect or store water which can be evenly distributed between locations. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees (also known as dikes) are used to manage or prevent water flow into specific land regions. The earliest known dam is the Jawa Dam in Jordan, dating to 3,000 BC. The word ''dam'' can be traced back to Middle English, and before that, from Middle Dutch, as seen in the names of many old cities, such as Amsterdam and Rotterdam. History Ancient dams Early dam building took place in Mesopotamia and the Middle East. Dams were used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roman Engineering
The ancient Romans were famous for their advanced engineering accomplishments. Technology for bringing running water into cities was developed in the east, but transformed by the Romans into a technology inconceivable in Greece. The architecture used in Rome was strongly influenced by Greek and Etruscan sources. Roads Roads were common at that time, but the Romans improved their design and perfected the construction to the extent that many of their roads are still in use today. Their accomplishments surpassed most other civilizations of their time, and after their time, and many of their structures have withstood the test of time to inspire others, especially during the Renaissance. Moreover, their contributions were described in some detail by authors such as Pliny the Elder, so there is a printed record of their many inventions and achievements. Aqueducts A thousand cubic metres (260,000 US gal) of water were brought into Rome by eleven different aqueducts each day. Per c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roman Architecture
Ancient Roman architecture adopted the external language of classical Greek architecture for the purposes of the ancient Romans, but was different from Greek buildings, becoming a new architectural style. The two styles are often considered one body of classical architecture. Roman architecture flourished in the Roman Republic and to even a greater extent under the Empire, when the great majority of surviving buildings were constructed. It used new materials, particularly Roman concrete, and newer technologies such as the arch and the dome to make buildings that were typically strong and well-engineered. Large numbers remain in some form across the former empire, sometimes complete and still in use to this day. Roman architecture covers the period from the establishment of the Roman Republic in 509 BC to about the 4th century AD, after which it becomes reclassified as Late Antique or Byzantine architecture. Few substantial examples survive from before about 100 BC, and most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Roman Dams And Reservoirs
This is a list of Roman dams and reservoirs. The study of Roman dam-building has received little scholarly attention in comparison to their other civil engineering activities, even though their contributions in this field have been ranked alongside their expertise in constructing the well-known Roman aqueducts, bridges, and roads. Roman dam construction began in earnest in the early imperial period. For the most part, it concentrated on the semi-arid fringe of the empire, namely the provinces of North Africa, the Near East, and Hispania. The relative abundance of Spanish dams below is due partly to more intensive field work there; for Italy only the Subiaco Dams, created by emperor Nero (54–68 AD) for recreational purposes, are attested. These dams are noteworthy, though, for their extraordinary height, which remained unsurpassed anywhere in the world until the Late Middle Ages. The most frequent dam types were earth- or rock-filled embankment dams and masonry gravity d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Al-Rastan Dam
Al-Rastan Dam is an embankment dam on the Orontes River in the city of Al-Rastan, Homs Governorate, Syria. It was completed in 1960 with the primary purpose of irrigation. It was constructed by the Bulgarian firm Hydrostroy along with the Mouhardeh Dam, downstream and also on the Orontes. See also *Lake Homs Dam __NOTOC__ The Lake Homs Dam, also known as Qattinah Dam, is a Roman-built dam near the city of Homs, Syria, which is in use to this day. History Contrary to an older hypothesis which tentatively linked the origins of the dam to Egyptian ruler Seth ... – located upstream References {{reflist Dams in Syria Dams completed in 1960 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basalt
Basalt (; ) is an aphanite, aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the planetary surface, surface of a terrestrial planet, rocky planet or natural satellite, moon. More than 90% of all volcanic rock on Earth is basalt. Rapid-cooling, fine-grained basalt is chemically equivalent to slow-cooling, coarse-grained gabbro. The eruption of basalt lava is observed by geologists at about 20 volcanoes per year. Basalt is also an important rock type on other planetary bodies in the Solar System. For example, the bulk of the plains of volcanism on Venus, Venus, which cover ~80% of the surface, are basaltic; the lunar mare, lunar maria are plains of flood-basaltic lava flows; and basalt is a common rock on the surface of Mars. Molten basalt lava has a low viscosity due to its relatively low silica content (between 45% and 52%), resulting in rapidly moving lava flo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Homs
Homs ( , , , ; ar, حِمْص / ALA-LC: ; Levantine Arabic: / ''Ḥomṣ'' ), known in pre-Islamic Syria as Emesa ( ; grc, Ἔμεσα, Émesa), is a city in western Syria and the capital of the Homs Governorate. It is Metres above sea level, above sea level and is located north of Damascus. Located on the Orontes River, Homs is also the central link between the interior cities and the Mediterranean coast. Before the Syrian Civil War, Homs was a major industrial centre, and with a population of at least 652,609 people in 2004, it was the third-largest city in Syria after Aleppo to the north and the capital Damascus to the south. Its population reflects Syria's general religious diversity, composed of Sunni and Alawite Muslims, and Eastern Christianity, Christians. There are a number of historic mosques and churches in the city, and it is close to the Krak des Chevaliers castle, a World Heritage Site. Homs did not emerge into the historical record until the 1st century BCE a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roman Concrete
Roman concrete, also called , is a material that was used in construction in ancient Rome. Roman concrete was based on a hydraulic-setting cement. It is durable due to its incorporation of pozzolanic ash, which prevents cracks from spreading. By the middle of the 1st century the material was used frequently, often brick-faced, although variations in aggregate allowed different arrangements of materials. Further innovative developments in the material, called the concrete revolution, contributed to structurally complicated forms, such as the Pantheon dome, the world's largest and oldest unreinforced concrete dome. Roman concrete was normally faced with stone or brick, and interiors might be further decorated by stucco, fresco paintings, or thin slabs of fancy colored marbles. Made up of aggregate and a two-part cementitious system it differs significantly from modern concrete. The aggregates were typically far larger than in modern concrete as well, often amounting to rubble, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
La Digue Du Lac De Homs, Retenant Les Eaux De L'Oronte, Avec Sa Tour Romaine
LA most frequently refers to Los Angeles, the second largest city in the United States. La, LA, or L.A. may also refer to: Arts and entertainment Music * La (musical note), or A, the sixth note * "L.A.", a song by Elliott Smith on ''Figure 8'' (album) * ''L.A.'' (EP), by Teddy Thompson * ''L.A. (Light Album)'', a Beach Boys album * "L.A." (Neil Young song), 1973 * The La's, an English rock band * L.A. Reid, a prominent music producer * Yung L.A., a rapper * Lady A, an American country music trio * "L.A." (Amy Macdonald song), 2007 * "La", a song by Australian-Israeli singer-songwriter Old Man River Other media * l(a, a poem by E. E. Cummings * La (Tarzan), fictional queen of the lost city of Opar (Tarzan) * ''Lá'', later known as Lá Nua, an Irish language newspaper * La7, an Italian television channel * LucasArts, an American video game developer and publisher * Liber Annuus, academic journal Business, organizations, and government agencies * L.A. Screenings, a te ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Homs")
