Up to the present, deformation including settlement and inclination for large steel tank, such as oil tanks and PLG tanks have not get been clearly specified in the chinese foundation code.
对于油罐、煤气罐和液化石油储罐这类大型钢制储罐基础的允许变形（包括沉降和倾斜），在我国的地基规范中，至今没有作出明确规定。
Settlement deformation often happens on large steel tanks constructed on soft groundwork, in which the influence of uneven settlement around tank wall is the most detrimental for tank structure.
建造在软土地基上的大型钢储罐易产生沉降变形，其中罐周不均匀沉降对储罐结构的影响最为不利。
The sand-stone-mud padding of oil tank foundation is an important factor in uneven settlement of the tank basis.
油罐基础砂石土垫层是油罐地基发生不均匀沉降的重要因素。
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