深海沉积物与履带相互作用试验研究

深海沉积物与履带相互作用的力学特性是深海资源采运设备设计的重要依据。在国内外专家调查、研究的基础上，以膨润土与水的混合物代替深海沉积物，将履带分解为压陷板和剪切板，在特制的试验槽内开展了沉积物的压力沉陷试验与剪切变形试验，得到了沉积物与履带相互作用的压力-沉陷关系曲线和剪应力-剪切位移关系曲线。基于Bekker沉陷模型，得到了模拟沉积物压力-沉陷模型的各个参数值；同时，发现模拟沉积物剪切变形过程具有明显的阶段性，具体可分为线弹性阶段、应变强化阶段、应变软化阶段和残余应力阶段

Experimental study of interaction between deep-sea sediments and tracks

The mechanical properties of interaction between deep-sea sediments and tracks is an important basis for the design of deep-sea mining system.Based on the researches carried out by experts at home and abroad,the mixture of bentonite and water was taken to replace the deep-sea sediments,and the tracks was split into cave-in panel and shear panel,then the pressure-sinkage test and shear deformation test about the sediments was carried out in a special test cell;the pressure-sinkage relationship curve and shea...