And suggested the new strategies: desilting at high concantration in vertical and horizontal pipes at the dam area; the silt liquefaction starting of buried seeper penstock at the river reach of Chongqing.

• 提出了2种新的技术对策:坝区垂直与水平管道高浓度排沙;重庆河段埋管压力渗透液化起动泥沙。