论文部分内容阅读
在现今地应力场作用下,随着现今地壳形变的发展变化,在某些薄弱部位形成新生的破裂,继而发展成为现今活动的断层;而原有的断层有的则仍在继续活动。它们的现今活动可以通过多种手段进行定量的测定。它们的现今活动受到多种因素制约,并作有规律的分布变化,形成了各自的断层现今位移场。本文按照断层的展布和组合特征,将其划分为:单条断层位移场、平行多条断层位移场及复合断层位移场三种类型。由其形成的地质灾害也有多种,如错断和破坏建筑物,乃至地震、火山活动、岩爆、煤瓦斯突出、突水、突泥等。因此正确认识断层现今活动位移场的规律,对有关地质灾害的减灾与防治具有重要现实意义,同时对地质找矿工作也有实际意义。
Under the current stress field, with the development and changes of crustal deformation, some newborn ruptures are formed in some weak parts and then develop into faults of current activities. Some of the faults still continue to move. Their current activities can be measured quantitatively by a variety of means. Their present-day activities are constrained by many factors and undergo regular distribution changes, forming the present displacement field of their respective faults. According to the distribution and combination characteristics of faults, this paper divides them into three types: single fault displacement field, parallel multiple fault displacement fields and composite fault displacement field. Geological disasters formed by it also have many kinds, such as breaking and destroying buildings, and even earthquakes, volcanic activities, rockbursts, coal gas outbursts, water inrush, mud and so on. Therefore, it is of great practical significance to correctly understand the laws of the current displacement field of faults, and to reduce and prevent geological disasters. At the same time, it is of practical significance to geological prospecting work.