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运用平衡剖面分析和构造物理模拟实验方法研究了典型铲式正断层模型上盘盆地的发育过程．研究表明，铲式正断层的产状以及断层上盘的变形方式直接影响上盘盆地的形态和沉积层序结构．简单铲式正断层的上盘发育相对简单的半地堑盆地，复杂铲式（坡坪式）正断层的上盘则发育包含有内部次级背斜凸起和向斜凹陷的复式半地堑，而且半地堑盆地的宽度与拆离断层面深度成正比．在沉积物补偿充填的情况下，渐进伸展将使半地堑的宽度也保持不变，从而使半地堑构造斜坡上产生“视水退”的层序结构现象，并且使盆地中“垂向加积”的沉积层序演变为宏观上“侧向加积”的沉积层序．这种由构造因素对半地堑盆地的层序充填的影响在渤海湾盆地的部分老第三纪断陷中得到印证．
The development of a typical shovel-normal faulting model in the upper basin was studied by means of equilibrium profile analysis and tectonic physical simulation. The research shows that the shape of the shovel normal fault and the deformation of the upper plate of the fault have a direct impact on the morphology and sedimentary sequence of the upper plate basin. In simple half-graben basins with simple shovel-type normal faults, the upper half-graben basin with complex shovel-type (ramp-type) normal faults is characterized by the development of a compound half-graben with internal secondary anticlines and synclines , And the width of the semi-graben basin is directly proportional to the depth of the detachment fault. In the case of sediment compensation filling, the gradual extension will keep the width of half-graben unchanged, resulting in the phenomenon of “apparent water receding” in the semi-graben tectonic slope and the “vertical Accretion ”depositional sequence evolves into a macroscopic“ lateral accretion ”sedimentary sequence. This effect of structural factors on the sequence filling of the semi-graben basins has been confirmed in some of the old Tertiary rifts in the Bohai Bay basin.