This paper deals with the key influential factors upon the dredging efficiency and production, gives state-of-the-art research and development tendency at home and abroad.
Domestic innovation project for the major national technical equipment -DLC 1200/500 moving - bucket dredge, which developed by Jiangsu Asia-Pacific Group allied with some domestic research institutes and universities currently, is the first large - scale and high - efficient dredging equipment that close to the international advance level. It is new both on design, manufacture, and architecture, and is more suitable for the local conditions.
In order to meet the urgent need for dredging and silt removing for rivers and lakes in our country, China commenced in 1999 the “Dredger building program for dredging and siltremoving for rivers and lakes” (also called “Hundreds Dredger Program”, first stage).
The paper gives an introduction to the electric system of the 800 m 3 open drag suction dredger. It includes the characteristics of the power station, main switchboard and dredging control system, and discussed the problems solved in design solutions.
本文主要介绍800 m 3 开体式耙吸挖泥船的电气系统,包括电站、主配电板及挖泥控制系统的特点、设计中遇到的问题以及解决途径
With Type C200HE programmable program controller of Omron as its processing core, the system realizes communication with high-position monitoring computer by controller link, carries out collection, display and management of field database and automatic control of dredging operation.
Bottom dredging and the siltation induced by it have drastically lowered the benthos biomass, changed benthic communities, and altered their trophic structure.
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Characteristics of Cajander Larch (Larix cajanderi Mayr) on Dredging Waste Dumps in the Amur Region
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Former dredging sites were studied in the taiga zone of the Amur region (in Khabarovsk Krai).
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The involvement of Larix cajanderi in plant succession on dredging waste dumps was revealed.
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Some Environmental Consequences of Soil Dumping in the Black Sea as a Result of Dredging Operations in Kerch Strait
This paper gives the methods for criteria of stability of coasting self-propelling bucket dredgers under two conditions: on navigetion and 0:1 dredging. Criteria of stability on navigation consist of the calculations for: 1. Stability under hurricane. 2. Stability as vessels rolling broadside on the waves and under the action of a gale. 3. Stability as vessels rolling on the following oblique sea waves and under the action of gale. A method for calculation the statical stability curve under this condi...
For the purpose of developing our sea and river dredging industry, the author makes out this paper on the basis of the recent few international conferences proceedings and related reference both in foreign languages and in Chinese. The general aspects of the dredging industry and the development and trend of the dredgers abroad are outlined in this paper
It is by the liquid and solid two phase flow theory that this article brings forward not only a calculating method of the maximum discharge which can prevent cavitation in dredging slush pumps and their pipeline systems, but also a calculating method of the minimum discharge which can minimize the loss of the pump pipeline systems and ensure the stability of the operation of the systems. The authors of this article also tell how to determine the operation parameters of the slush pump systems under the...