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首页> 外文期刊>International Journal of Offshore and Polar Engineering >In-situ Soil Testing in the Central Indian Ocean Basin at 5462-m Water Depth
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In-situ Soil Testing in the Central Indian Ocean Basin at 5462-m Water Depth

机译：中部印度洋盆地水深5462米的原位土壤测试

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摘要

The optimum design of an integrated mining system for polymetallic nodule mining is mainly dictated by the soil properties of extremely soft seabed at depths of 5000-6000 m. During the design process, the entire weight distribution and traction of the mining machine has to be configured by considering the bearing strength and shear strength parameters of the soil. The shear strength of the soil also provides useful information on the maneuverability and control of the mining machine. It is also imperative that the mining area be delineated to eliminate vulnerable areas of low strength where the equipment may sink suddenly beyond recovery due to anchoring of the machine. A remotely operable in-situ soil tester has been developed for 6000-m operations, with a cone tester and a shear vane tester for soft soils and shallow depth of penetration. This paper describes the methodology used for soil property measurements and the soil tester's performance at 5462-m water depth in the Central Indian Ocean Basin.
机译：多金属结核采矿综合采矿系统的最佳设计主要取决于深度为5000-6000 m的极软海底的土壤特性。在设计过程中，必须通过考虑土壤的承载强度和抗剪强度参数来配置采矿机的整个重量分布和牵引力。土壤的剪切强度还为采矿机的可操纵性和控制提供了有用的信息。还必须划定采矿区域，以消除低强度的脆弱区域，在该区域中，由于机器的锚定，设备可能突然下陷而无法恢复。已开发出一种可远程操作的原位土壤测试仪，可用于6000米的作业，并配有用于软土和浅渗透深度的圆锥测试仪和剪切叶片测试仪。本文介绍了用于测量印度中部洋盆5462米水深处的土壤特性的方法和土壤测试仪的性能。

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