饶阳凹陷构造成因分析

饶阳凹陷是一个东断西超的新生代箕状断陷,内部发育了一系列伸展构造和走滑构造,伸展构造是主体。统计各层位四级断层的走向得出,古近纪由早至晚伸展方向由近东西向到北西-南东向再到近南北向顺时针旋转。右行走滑构造也很明显,表现为雁列构造、帚状构造、花状构造、主断裂尾部构造等主断面陡倾,主要形成于沙三段至东营组沉积期。马西、河间、留路等主控断层的坡坪式形态和伸展活动,导致了自东向西依次为断裂构造带、主洼槽带、中央潜山带、次洼槽带、斜坡的规律性分布。北部主滑脱面深度大,为基底掀斜翘倾区;中部主滑脱面深度较大,为基底断弯区;南部主滑脱面深度较小,为盖层滑脱断褶区。

帘式涂布纸板机常见纸病的成因、对策及其质量优化

介绍了帘式涂布在涂布纸板机生产过程中产生的针眼、猫爪印、帘涂条痕等常见纸病的成因,对如何减少这些纸病提出了针对性的防范措施,并探讨了帘式涂布的质量优化。

Genetic model of hanging wall syncline and central dome in extensional fault

Hanging wall syncline and central dome are special extension structures, developing over the hanging wall in an extensional ramp-flat fault. Under the condition that the flat is sub-horizontal, the hanging wall syncline is separated from the half graben by the central dome. And on the dome forms an erosional surface. Both sediments in the half graben and erosional surface on the top of the central dome extended over the dome and entered into the hanging wall syncline with extension going on. Meanwhile, those having entered were overlapped by new sedimentary layers in the hanging wall syncline, so that there is a together-threaded, diachronic unconformity to form in the same epoch stratum. The layers in the hanging wall syncline also have an attribute of migrating laterally and getting tilted with extension. There is no sedimentation on the central dome. But sediments, which came from the half graben, got thicker over the dome in extension.