河道渠化治理研究

Study on river canalization

阐述人工裁弯、缩窄河床和固化河岸等河道渠化治理措施对河流的有利和不利影响以及控制渠化河床冲刷下切的措施 (修建拦挡坝、抛石护底、衬砌护底和人工加沙 ) .提出渠化河道设计的两个重要参数─—渠化河宽和平衡比降的确定方法 .介绍美国密西西比河与密苏里河。

The favorable and unfavorable effects are analyzed of some measures for river canalization, including artificial bending cutoff, river bed contraction, and river bank solidification, and some measures are presented for control of downcutting of river beds caused by scouring, such as construction of water retaining dams, riprap protection of river beds, liner protection of river beds, and artificial adding of sediment. A method is proposed for determination of two important parameters used in design of river canalization, i.e. the width and the equilibrium slope of rivers to be canalized. Furthermore, an introduction is given to the canalization of the Mississippi River of the United States, the Rhine River of Germany, and the Laohe River of China.