南水北调中线引江济汉工程地质条件分析

引江济汉工程系与南水北调中线水源工程配套的汉江中下游4大工程之一,工程拟主要采用人工渠道自长江枝江-荆州河段引水,跨越荆州、潜江境内众多的公路、河流、湖汉后,在潜江市高石碑-东荆河口一带入汉江,初拟年均调水量93亿m3;工程兴建将近距离沟通长江、汉江两大河流,补偿南水北调工程实施后汉江丹江口以下河段工农业及生态用水,改善汉江中下游生态和水文环境.在阐述引江济汉工程基本地质条件的基础上,对拟建渠道工程存在的主要工程地质问题作初步的分析和研究,对其线路方案提出地质建议.

Analysis to geologic condition of water diversion works from the Yangtze river to the Hanjiang river for S - N water transfer project

The water diversion works from the Yangtze river to the Hanjiang river is 4 main supplementary works in middle and downstream of the Hanjiang river for S-N water transfer project,transferring water by artificial canal from Zhijiang-Jinghzou reach of the Yangtze river,passing through multiple highway,rivers and lakes in Jingzhou city and Qianjiang county,into the Hanjiang river in the area of Gaoshibei and the river mouth of the Dongjing river in Qianjiang county.The works is preliminarily designed to transfer water 9.3 billion m3 per year.The works will connect 2 large rivers of the Yangtze river and the Hanjiang river in a short distance,and supply water for industry and agriculture,improve ecological and hydrological environment in the downstream area of the Danjiangkou hydroproject after water transferred to the north China.This paper introduces basic geologic condition of water diversion works from the Yangtze river to the Hanjiang river,and preliminarily analyzes the main geologic engineering problems of the designed canal,and put forward geologic suggestions for the canal route design.