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In terms of engineering construction, in large-area and large-scale earthwork excavation operations, foreign bucket wheel excavators are often equipped with belt conveyors to dig, load, transport, and unload once, or to jointly operate large-scale tankers, and their work efficiency. very high. The channel lining is also highly mechanized. The joint operations of cutting, lining, trimming, and maintenance of complete sets of units are carried out. The formation of the base surface, concrete paving, vibrating, troweling, kerfing, trimming, and maintenance of the spray film are completed once.
China's small and medium-sized water conservancy projects rarely use complete sets of machinery. Channels are also rarely lining. There are no parallel roads along the channels, and a large number of trees are planted on the dams. In particular, in recent years, various garbage and floating materials have increased in irrigation and drainage channels in China, which has brought great difficulties to the maintenance and dredging of the channels, making it difficult to use general-purpose or improved general-purpose machinery.
The construction of water conservancy projects in China is still subject to major problems, light support, neglect of maintenance, management, and other issues, coupled with the constraints of follow-up capital and other factors of the project. Many projects cannot support Jackie Chan and play an effective role. Management is mostly based on people management. Lord, its automated unattended management is relatively lagged behind, and there is a big gap.
Flood control and emergency rescue in developed countries usually use general machinery or improved general machinery for mechanized construction. In the event of floods, the method of evacuation is basically adopted. Few floods use artificial flood prevention and rescue measures, while water damage projects are afterwards. Rebuilding, the machinery used can basically be satisfied with general machinery. Therefore, apart from some emergency rescue equipment, there is basically no special flood prevention and rescue equipment.
(China Water Resources News)
Comparison of Hydraulic Machinery in China and Foreign Countries
In large-scale water conservancy construction machinery, there is not much difference between China and developed countries. However, there is a big gap between the medium and small-sized water conservancy construction machinery and the developed countries, especially in the management and maintenance of small and medium-sized water conservancy projects.
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