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New developments of technology in rock engineering in China

         

摘要

In terms of rock engineering and technology in hydropower construction, the slope stability and monitoring techniques for high slopes of Three Gorges Project, the stability and support technology for high slopes of hydropower projects in deep river valley, the stabilization techniques for underground cavern group with large span and high side walls are introduced in this paper. As for rock engineering and technology in highway and railway construction, the Qinghai-Tibet Railway -- new construction techniques in permafrost, the support techniques for large squeezing deform- ation in Wuqiaoling Tunnel, the construction techniques for tunnels in alpine and high-altitude region, the geological prediction techniques for tunnels in karst region, the microseismic monitoring and early warning techniques for rock- bursts in deep and long tunnels are presented. For rock engineering and technology in mining engineering, the innova- tive techniques for roadway support in mines, the simultaneous extraction technique of pillarless coal and gas in coal seams with low permeability, the safe and efficient deep open mining technology, advances in monitoring, early warning and treatment of mine dynamic disasters are discussed. In addition, the new anchorage techniques and precision blasting technique in rock engineering are introduced.

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