西安地区区域地壳稳定性评价

EVALUATION OF REGIONAL CRUSTAL STABILITY IN THE XI'AN AREA

本文依据“七五”期间对西安地区进行区域地壳稳定性与地质灾害评价和研究工作所取得的地质、物探、测量、模拟实验等方面的成果资料,考虑到内、外动力地质作用及介质条件,运用模糊数学方法进行了稳定性评价与区划,将西安地区地壳稳定性划分为较稳定、次较稳定、次较不稳定、较不稳定、不稳定五级。在此基础上,对西安地区主要城市的建设与发展规划提出了指导性的建议。

During the "Seventh-Five-Year Plan" of China, the authors carried out the evaluation and study of the regional crustal stability and geological hazards in the Xi’an area. Many achievements and the information on geology, geophysical prospecting, surveying and model experiments have been gained. According to the inner and outer dynamic geological and medium conditions in the area, and applying the fuzzy mathematic method, the authors have divided the crustal stability in Xi’an area into five grades: relative stable, sub-stable, sub-unstable, relative unstable and unstable. Finally, some suggestions for the urban construction and development plan in the Xi’an area have been made in this paper.