PREDICTION AND MONITORING ANALYSIS OF IMMERSION EFFECTS OF CHAOZHOU CITY ZONE
CAO Hong1，SUN Zijun1，LI Jun2，FU Nengjiang3
(1. State Key Laboratory of Subtropical Building Science，South China University of Technology，Guangzhou，Guangdong 510641，China；2. Guangdong Provincial Investigation Design and Research Institute of Water Conservancy and Electric Power，Guangzhou，Guangdong 510635，China；3. Chaozhou Water Supply Managing Office of Guangdong Province，Chaozhou， Guangdong 521011，China)
Abstract：During the design stage of Chaozhou water supply pivot project，the immersion problem is analyzed and the waterhead distribution is predicted. Groundwater monitoring network has been laid out to monitor the groundwater in the area that may be affected by immersion. Based on the previous numerical analysis results，combined with a more than two-year groundwater monitoring data and field investigation，the immersion is carefully analyzed and evaluated. The result shows that the primary design goal has been basically realized. According to impoundment and surge shaft influence degree of the groundwater monitoring points，the city zone is classified into three typical areas and Chaozhou main city zone is in the area affected both by impoundment and surge shaft. The immersion affected area is within 600–1 000 m behind the dike and the surge shaft works comparatively well.
