降雨入渗条件下三峡船闸边坡渗流场的变化

SEEPAGE FIELD CHANGES OF SHIPLOCK SLOPE OF TGP UNDER RAINING AND PERCOLATION

采用饱和渗流模型，对降雨入渗条件下三峡船闸边坡渗流场的非稳态变化情况进行了分析．结果表明，在降雨量较大时，降雨入渗对高边坡的渗流场还是有一定影响的，但由于排水洞的作用，不会在边坡的浅部和船闸直立墙附近造成过高的压力水头．因此，降雨入渗对高边坡的稳定影响不大．

The unsteady changes of seepage field of slope of TGP shiplock under raining and percolation are anlyzed by saturated seepage model. The computation suggests that raining and percolation do have some effect on the seepage field of high slope, but they don't lead to high pressure water head in the shallow slope and vicinity of vertical wall of shiplock for the existence of drainage holes. Therefore, raining and percolation have slight influence on the stability of high slope. © 2002, Science Press. All right reserved.