Nonwoven Geotextiles

The Campeira Dam is responsible for supplying water to the city of Cristalândia (TO) for most of the year. A few years ago, after intense periods of rainfall, the dam's spillway, which was 7 metres wide, was not sufficient to release all the excess water from the reservoir, causing it to overflow and consequently the erosion of the shoulders and the dam's structure to be compromised.

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Ciawi Dam is a dry dam located in West Java, Indonesia. The infrastructure is planned to have a capacity of 6,45 m3 and expected to reduce the flood discharge of 160 m3/sec. The purpose of this dam is to reduce the amount of rainwater from the upstream so that the city in the lowland area doesn’t flood. As a part of the dam construction, there is an existing river flow that needs to be diverted. The original design was using the heavy galvanize as the coating of the wire mesh or concrete structure as the alternative. The total length of the drop structure is 54,2 meters and 18 meters of total height.

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Indocement factory is located in the South of Jakarta and it is the second largest cement producers in Indonesia. The Client needed a flexible retaining structure to be connected with the existing concrete vertical wall used as crusher wall. The total soil height to be retained was approximately 14m. The area is characterized by a high seismic level and an horizontal seismic acceleration equal to 0. 23g had to be considered in the design process. Another constraint of the project was the maximum available space behind the new retaining structure which was equal to 13m. The client took into consideration in the first place a mass gravity retaining wall made with gabions.

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