钱塘江河口段通航能力的初步分析

本文阐述了钱塘江通海航道的现状,指出仓前至尖山的中段航道影响着河口出海通航能力,四工段浅滩是主要的碍航浅滩。文中还对不同水文条件下,钱塘江河口段的乘潮保证率和最大可能出海运量作了分析,在此基础上提出了改善航道条件的措施。

Navigation capacity of Qiantang River estuary

The navigation condition of the Qiantang River estuary is abominable because the main channel is shoal and shifty, the aggradation and degradation occur frequently and the effect of the violent tidal bore.The estuarine waterway usually means the reach between Haiyueqiao of Hangzhou to Ganpu. the existing status of which is "easy going into port, difficulty leading to sea". Its middle reach from Cangqian to Jianshan strongly blocks the estuarine navigation leading to sea.This paper analyses the fluvial process of the main shoal in the waterway.The probability and maximum probable capacity of navigation are studied in Qiantang River estuary under several kinds of hydrological conditions. Several measures to improve the navigation condition are proposed.