An effective stress calculation formula for coal containing gas is proposed coupling with the swelling stress of gas adsorption in the effective stress principle for porous media. 摘要首先在多孔介質的有效應力原理中引入瓦斯吸附的膨脹應力，推導出了適用於含瓦斯煤岩的有效應力計算公式。
It is indicated that creep constitutive relation of gas-comtaining coal can be expressed by the nonlinear viscoelasto-plastic creep model correctly. 實驗結果與該模型的理論值吻合較好，表明河海模型能正確描述含瓦斯煤的蠕變本構特性。
