1. 5 This paper analyzed the reasons and the characteristics of the freshet disaster of Southern Jiangxi and put forword the main measures of the freshet disaster control.

2. 2 Freshet and power failure have an impact on construction for 2 hours.

3. Richmond is also at risk of a major flood if the Fraser River has an unusually high spring freshet.

4. 3 Critical precipitation inducing freshet was analyzed and confirmed in this article through the relevant data of mountain torrent disaster and precipitation.

5. 4 The basin information, the information and characteristic of the historical freshet disasters and the present situation of the rainfall information monitoring of Jian city were introduced.

6. Conventional lime treatment is carried out on a year round basis at four adits as well as in the tailings impoundment during spring freshet.

7. 1 Advance of freshet analysis is one of key measures of preventing or controlling flood, which have been widely applied on urban flood proofing, basin planning and engineering construction.