外文翻译
Rapid construction of the earth-rock dam
Abstract : In recent decades, the soil core rockfill dam has gradually become the world's construction of the high dam-one of the mainstream, With the new earth and the huge investments in machinery and construction technology of filling a higher level, Meanwhile dams in-depth testing, greatly expanding the earth-rock dam scope of the materials and the use of materials for model for more extensive earth-rock dam will provide favorable conditions to change the long-standing earth-rock dam with a long construction period, Filling the lack of low intensity, and further accelerate the progress of the construction, Filling in ensuring construction quality and safe operation under the premise to explore the rapid construction of earth-rock dams it is very necessary thing.
Key words : earth-rock dam Rapid construction Construction
1 Overview
Also known as the earth-rock dam dam local materials, the necessary soil in situ stone mining in general, but can also make full use of the excavated material. having to basic requirements, low deformation based on the character, filling construction, and can be divided into RCC-grade. Fill-rockfill dam, directional blasting rockfill dam, the hydraulic fill dams, hydro-filled dam and masonry dam in different ways. Parabolic which administered rockfill dam no longer, directional blasting rockfill dam late settlement exist, not be planted within the dam prototype observation equipment shortage, which are rarely used, hydraulic fill dams, Fill the water main in a special area of the lower dam height of the small and medium projects, the masonry dam strictly speaking belongs masonry dam category, At present, the extensive use of thin sections and the hierarchical compaction roller compacted earth-rock dam. 2 The need for rapid construction
With the dam construction technology, concrete gravity dam dam the technology continues to improve, while the rubber dam and other new dam-constant use, there is a traditional earth-rock dam filling a large quantity of a long time to build the shortcomings become extremely prominent, how to fully exploit the technology itself earth-rock dam low, right foundation adaptability, full use of local materials to the traditional advantages to speed up the construction schedule, as Pa-an important option. Filling in ensuring the quality of construction and safe operation of the rapid construction premise is that the parties are concerned.
2.1 Based on the uncertainty, the need to accelerate the progress of measures 1 1
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