海底沉积物剪切强度的试验研究

Study of the shearing strengths of marine sediment in the China’s mining region

通过在船上现场测试,对勘探海域沉积物剪切强度进行了测试和分析.并从力学特征等方面对海底沉积物进行了综合工程地质特性研究,发现测试区域剪切强度特征随含水量的变化而变化.当含水量较高时,具有抗剪切强度小的力学特性.同时结果也表明沉积物剪切强度随深度加大而增大,到一定深度后强度趋于平稳.不同站位的沉积物由于其类型不同其剪切强度随深度的变化也不一样,有的甚至还有较大的差别.图2,表1,参9.

By testing value of shearing strength of marine sediment was done on the board.Comprehensive geological characteristic was researched by means of analysis of sedimentary mechanics characteristic.As water content and its shearing strength in sediment adds,resisting shearing strength value gradually rise.The result indicates that shearing strength value of sediment rises with depth increasing untill certain depth.2figs.,1tab.,9refs.