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一、丹江口地区断裂构造的应力分析丹江口地区的区域构造环境及各期区域构造应力?的分析,已在有关文章中作了论述。至于一个小区中的构造断裂,我们认为,是受区域应力?影响和控制的。因此,本文拟用地质力学的理论与方法,研究断裂构造在小区域范围内的表象和规律,为工程建设服务。 (一)各组结构面的力学性质鉴定各个时期构造应力作用,在小区内的直接表现是形成了多方向的断裂构造,但各组断裂构造的发育程度有很大的差别,性质和特征也各不相同。茲概述如下: 1.北西西向结构面。在区内表现显著。包括变质岩中的褶皱、揉褶和层间挤压、片理、劈理以及
I. STRESS ANALYSIS OF FRACTURE STRUCTURE IN DANJIANGKOU REGION The analysis of regional tectonic setting and tectonic stress in various periods in Danjiangkou area has been discussed in the related article. As for the tectonic faults in a small area, we think it is affected and controlled by regional stress. Therefore, this paper intends to use the theory and method of geomechanics to study the appearance and regularity of fault structure in a small area and serve the engineering construction. (1) The mechanical properties of the structural planes in each group are identified by the tectonic stress in each period. The direct manifestation in the plot is the formation of a multi-directional fracture structure. However, the developmental degree of the fracture structures in each group is greatly different. The nature and characteristics Different. It is summarized as follows: 1. North West-West structural plane. Outperform in the district. Including the metamorphic rocks in the folds, kneading and inter-layer squeeze, management, cleavage and