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白沙水库除险加固工程总投资9429万元,于2003年6月开工,2006年6月通过竣工验收。一工程完成后水库达到2000年一遇的标准,因白沙泄洪闸远离主河槽,如修建尾水渠将水流导入河道,投资将近2．0亿元左右,投资效益低下,故泄洪闸、尾水渠工程未能实施。根据白沙水库上游存在众多中、小型水库以及溢洪道远离主河槽的实际情况,通过研究调整水库运行方式,减少了溢洪道过水几率,最大程度上减少了溢洪道过水对下游的冲刷、淹没损失。
Baisha Reservoir reinforcement project with a total investment of 94.29 million yuan, started in June 2003, in June 2006 through the completion of acceptance. After the completion of a project, the reservoir reached the standard of one year in 2000. Due to the Baisha discharge floodgates being far away from the main channel, such as the construction of a tailrace to divert water flow into the river, the investment will be about 200 million yuan and the investment benefit will be low. Therefore, flood discharge sluice and tailrace canal project Failed to implement. According to the fact that there are many medium and small reservoirs in the upper reaches of Baisha reservoir and the spillway is far away from the main channel, it is possible to reduce the probability of spillway passing water through research and adjustment of reservoir operation mode, and to minimize the downstream erosion and submergence loss due to overflow of spillway.