The presence of hydrate alters the stress distribution in sediments. Current analyses of stress state and stress path in hydrate deposits are simplistic, and no direct measurements are available. This study presents an experimental and theoretical investigation of the coefficient of earth pressure at rest K₀ in tetrahydrofuran hydrate-bearing sands. Hydrate crystals creep, and thus, measured K₀ values manifest time-dependent behavior. The coefficient K₀ in hydrate-bearing sediments is mainly governed by hydrate cementation at low stress and by the soil particle skeleton at high stress. Estimations of K₀ based on the Poissonˈs ratio from rock physics models fail to recognize plastic deformation and decementation due to loading. Particle fabric at the maximum stress in history can be partially preserved together with certain stress locked within the sediments that can significantly increase K₀ values beyond usually assumed 0.5. Therefore, high lateral stress transfer is expected in the hydrate reservoir after gas production.

水合物的存在改变了沉积物中的应力分布。目前对水合物沉积物的应力状态和应力路径的分析非常简单，无法进行直接测量。这项研究提供了对四氢呋喃水合物砂土中静止K ₀时土压力系数的实验和理论研究。水合物晶体蠕变，因此测得的K ₀值表现出时间依赖性。含水合物沉积物中的系数K ₀主要由低应力下的水合物胶结作用和高应力下的土壤颗粒骨架决定。K _0的估计基于岩石物理模型的泊松比的模型无法识别由于载荷引起的塑性变形和破坏。历史上处于最大应力下的颗粒织物可以与部分应力保持在一起，而某些应力可以锁定在沉积物中，从而可以显着增加K ₀值，使其超过通常假定的0.5。因此，在产气后，预期在水合物储层中有较高的侧向应力传递。