Method for calculating form of sediment accumulation body during bottom throwing of trailing suction hopper dredger

Abstract

The invention discloses a method for calculating the form of a sediment accumulation body during bottom throwing of a trailing suction hopper dredger. The method comprises the following steps: (1) collecting data of the trailing suction hopper dredger under the bottom throwing operation mode condition; (2) establishing a sand throwing shape function according to the sand throwing amount and the sand throwing point water depth; (3) establishing a particle size coefficient function according to the water depth of the sand throwing point and the sediment particle size; and (4) fitting the sand throwing shape function, the particle size coefficient function and the established physical model to obtain a stacking body shape function. According to the method, a physical model is established through collected historical data of the trailing suction hopper dredger under the condition of a bottom throwing operation mode; summarizing and fitting the morphological relation of the underwater sediment accumulation body under the condition of the bottom throwing operation mode of the dredger, quickly calculating the morphology of the underwater sediment accumulation body according to the sediment throwing amount, the sediment throwing depth and the sediment particle size of the bottom throwing operation of the dredger, and guiding and optimizing the operation mode of the dredger.

Description

technical field

[0001] The invention belongs to the technical field of real-time forecasting, and in particular relates to a method for rapidly calculating the shape of a large-scale trailing suction dredger bottom throwing sediment deposits. Background technique

[0002] The development of my country's dredging industry has a history of hundreds of years. Driven by the wave of economic globalization and the rapid development of international trade, in order to meet the needs of the large-scale development of container and tanker transportation, various parts of my country have built ports, widened and deepened coastal waterways. In order to improve the navigation capacity, the dredging industry has developed rapidly. At the same time, with the development of ports, waterways, farmland water conservancy and coastal cities, the field of dredging operations has also been extended to a large extent. Farmland water conservancy and reservoir construction and maintenance, national...

Images