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What is a flume2/9/2024 ![]() ![]() "121-year-old western Colorado mining flume clings to its secrets". Archived from the original (PDF) on 14 March 2012. ^ "National Register of Historic Places Continuation Sheet" (PDF).: CS1 maint: location missing publisher ( link) Conservation of historic wooden structures: proceedings of the international conference. "Investigation of the construction of a 19th century wooden flume suspended on a cliff". Meryman, Helena Diebolt, Kent Anthony, Ronald W (22–27 February 2005). ^ "National Register Information System".This preliminary analysis is being used to consider a reconstruction of the flume incorporating the remaining structural elements. They examined the design of the structure, particularly the bents, of which they identified five distinct types. In April 2004, structural engineers rappelled down to the structure at seven locations to measure and evaluate it. The pine wood is vulnerable to decay and fungi. The Hanging Flume is in poor condition: it has been vandalized in places, some of its wood has been removed, and what remains has deteriorated, particularly where directly exposed to weather. Research and conservation Close up view of the flume, showing the rods that supported the wood. After the closure of the mine, local residents reused the timber. The reason was that the mine itself was closed after the discovery that most of the gold was unrecoverable, and the investors in the project only made $80,000 after investing over $1,000,000 into the mine and associated engineering works. The flume was only used for three years before being abandoned. When in use, it conveyed 80,000,000 gallons of water each day. The actual wooden flume was 6 feet wide and 4 feet deep. ![]() ![]() The flume's opening (the headgate) no longer exists, and the connecting ditch has been filled. It began on a dam on the San Miguel River above Uravan, Colorado. The completed flume was approximately 12 miles (19 km) long and up to 75 feet (23 m) above the river. This circulating water channel is the only one of its kind in the Southern Hemisphere. The timber used was mostly Ponderosa pine, a local tree, and it was supported using iron rods. The construction used 1.8 million board feet of lumber and ended up with a total cost over $100,000. Approximately 24 workers most being Asian immigrants, unwillingly participated in the build, suspended from ropes onto the cliff face. Initially used mainly in naval vessels, FLUME Roll Stabilisation tanks are now found on many merchant- and. These passive stabilisation systems have tanks with a free surface in which water is slowed down with the aim of a phase shift. Construction Ĭonstruction of the Hanging Flume took three years, beginning in 1887. FLUME rolling damping tanks were first developed in the 1960s under the leadership of John Martin. The flume connected with a six-mile (10 km) long ditch, both designed to provide water for miners in the San Juan Mountains of Colorado. Cliffside flumes were developed in California, using trestles and brackets (called bents) at regular intervals to support the flume box. Hydraulic mining, a popular method of exploiting placer deposits, required water to be efficiently transported, often using wooden flumes to maintain the necessary volume and pressure. The Montrose Placer Mining Company was formed to mine gold from placer deposits along the Dolores River. Some sections of the flume remain attached to the canyon wall, although much of the wood has vanished. The Montrose Placer Mining Company built the flume in the 1880s to facilitate gold mining. The Hanging Flume was an open water chute (known as a flume) built over the Dolores River Canyon in Colorado. These measurements are taken by providing stilling wells at the entrance and throat.5.7 mi. ![]() To measure discharge in submerged Venturi flume, two head measurements are required, one at the entrance and one at the throat. So, it is said to be submerged Venturi flume. Here, the downstream level of flume is kept equal to the level of throat section hence, there may be backward flow into the throat section. Submerged Venturi flume consists of gradual contraction on its upstream throat section in the middle and the gradual expanding section from the throat. Metering flumes are classified into following types : Different types of metering flumes and their working is explained in this article. Flumes are of different types and can be made up of materials such as aluminum, fiberglass, steel, wood etc. A Metering flume or flow measuring flume is an artificial channel section which is used to measure the discharge of a channel. ![]()
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