Abstract:

Reservoir immersion is one of geolgocial hazards in plain area. Based on influence factors of reservoir immersion in Songbei district located on the north bank of Songhua River in Harbin, reservoir immersion was evaluated for different prumping aschemes by using numercial simulation technique. The reservoir immersion criteria related hydrogeological conditions in the study area were proposed with the considerations of land cover, basement types of buildings: depths to water table are 2.50 m, 1.50 m for silty clay and silty fine sand rspectively in irrigation area; 3.50 m, and 3.00 m for silty clay and silty fine sand rspectively in urban area. The study area can be divided into potential immersion zone, transition immersion zone, and non immersion zone. The areas for each immersion zone were determined.

Key words: 水库；雍水浸没；地下水；临界深度；评价标准