中文摘要：

从原位测试、实验模拟和理论数值分析等角度归纳了现有含水合物沉积物力学性质研究方法，重，苣对自然界中含水合物沉积物力学特性进行了．总结，对比了海洋和冻土区含水合物沉积物力学性质的差异。除了诸如水合物形成和分解对沉积物力学性质影响这类定性评价外，水合物数值模拟和工程应用还需要建立像水合物饱和度与沉积物力学参数间这类定量关联函数。最后讨论了现有的含水合物沉积物力学性质定量研究结果，并提出了今后含水合物沉积物力学性质研究的几，点建议。

英文摘要：

Understanding of the mechanical properties of natural gas-hydrate-bearing sediments （GHBS） is practically important for simulating the wellbore stability, geomechanical response to gas extraction from a gas-hydrate reservoir and geohazards induced by hydrates. This review summed up the research methods for mechanical properties of GHBS including in-situ test, experimental simulation test and numerical simu lations, and emphasized the summary of mechanical characteristics of GHBS in ocean and permafrost are as. The differences in mechanical properties between these two areas were also compared. Except the qual itative analysis on effect of hydrate formation and dissociation on mechanical properties of GHBS, numeri cal simulations and engineering designs for hydrate reservoirs also require quantificational estimation by building correlations between hydrate saturation and mechanical parameters of GHBS. Therefore, the pa per concluded the present qualitative research progress on the mechanical properties of GHBS and proposed some suggestions for its future research.